Daikin Industries, Ltd.

Japan

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[Owner] Daikin Industries, Ltd. 2,311
Daikin Europe N.v. 35
Daikin America, Inc. 12
Date
New (last 4 weeks) 37
2021 January (MTD) 14
2020 December 45
2020 November 30
2020 October 42
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IPC Class
F25B 13/00 - Compression machines, plant, or systems, with reversible cycle 174
F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plant or systems 126
C09K 5/04 - Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice-versa 83
F24F 11/00 - Control or safety arrangements 77
F25B 1/00 - Compression machines, plant or systems with non-reversible cycle 65
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Registered / In Force 1,818
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1.

HEAT EXCHANGER

      
Application Number 16977271
Status Pending
Filing Date 2019-02-22
First Publication Date 2021-01-14
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Andou, Tooru
  • Nakano, Hiroyuki
  • Yoshioka, Shun

Abstract

A heat exchanger includes a heat transfer unit (HTU) including a heat transfer channel portion (HTCP) and auxiliary heat transfer portions (AHTPs). The HTCP and the AHTPs extend in a direction and are disposed in another direction being perpendicular to the direction. One of the AHTPs is an AHTP adjacent to the HTCP in another direction. When viewed from the direction, the AHTP is at an end of the HTU in another direction. A distance from the AHTP to the HTCP in another direction is defined as a length, in a case where the HTU further includes a plurality of HTCPs, the length is larger than a distance between adjacent ones of the HTCPs in another direction, and in a caser where the heat exchanger further includes a plurality of HTUs, the length is larger than a distance between the HTUs adjacent to each other in a direction different.

IPC Classes  ?

  • F25B 39/02 - Evaporators
  • F28D 1/053 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or mo with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
  • F28F 1/22 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means having portions engaging further tubular elements

2.

STATOR CORE AND COMPRESSOR

      
Application Number 17033024
Status Pending
Filing Date 2020-09-25
First Publication Date 2021-01-14
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Naka, Shoujirou
  • Kondou, Rei

Abstract

A stator core of an electric motor includes a core body, a slot, and an insulating member. The insulating member is integrated with the core body and has a linear expansion coefficient different from the core body. The insulating member includes, at a peripheral wall portion, a plurality of contact portions extending throughout a cylinder axial direction of the stator core and being in contact with the peripheral wall portion, and a noncontact portion positioned between adjacent ones of the contact portions. The noncontact portion extends throughout the cylinder axial direction and is not in contact with the peripheral wall portion. The peripheral wall portion has an inner peripheral wall portion forming a peripheral wall of the slot, and an outer peripheral wall portion forming an outer peripheral wall of the core body. The insulating member is located at at least one of the inner and outer peripheral wall portions.

IPC Classes  ?

  • H02K 1/14 - Stator cores with salient poles
  • H02K 3/32 - Windings characterised by the shape, form or construction of the insulation
  • F25B 1/00 - Compression machines, plant or systems with non-reversible cycle

3.

THRUST MAGNETIC BEARING AND TURBO-COMPRESSOR WITH SAME

      
Application Number 17033078
Status Pending
Filing Date 2020-09-25
First Publication Date 2021-01-14
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Yamasuso, Shouhei
  • Nakazawa, Yuji
  • Aota, Keiji

Abstract

A thrust magnetic bearing includes a stator having a coil, and a rotor. The stator includes main and auxiliary stator magnetic-pole surfaces. The rotor includes main and auxiliary rotor magnetic-pole surfaces facing the main and auxiliary stator magnetic-pole surfaces. When an electric current flows in the coil, an electromagnetic force in an axial direction is generated between the main stator and rotor magnetic-pole surfaces, and an electromagnetic force in a radial direction is generated between the auxiliary stator and rotor magnetic-pole surfaces. When the rotor is displaced in the radial direction, a radial force that acts on the rotor between the auxiliary stator and rotor magnetic-pole surfaces is increased in a direction of the displacement, and a radial force that acts on the rotor between the main stator and rotor magnetic-pole surfaces is increased in a direction opposite to the direction of the displacement.

IPC Classes  ?

  • F16C 32/04 - Bearings not otherwise provided for using magnetic or electric supporting means
  • H02K 7/09 - Structural association with bearings with magnetic bearings
  • H02K 7/14 - Structural association with mechanical loads, e.g. with hand-held machine tools or fans
  • F04D 29/058 - Bearings electromagnetic

4.

POWER SOURCE QUALITY MANAGEMENT SYSTEM AND AIR CONDITIONING APPARATUS

      
Application Number 17035090
Status Pending
Filing Date 2020-09-28
First Publication Date 2021-01-14
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Takahashi, Jun
  • Kono, Masaki
  • Kawashima, Reiji

Abstract

A power conversion device (3) is supplied with an electric power from an alternating current power source (1). An active filter device (2), which is a power source quality improvement unit, improves a quality of the alternating current power source (1). A controller (37) limits an operation of the power conversion device (3) so that any one of a power-source electric power, a power-source current, and a power-source harmonic obtained when a failure detection unit (4) detects a failure of the active filter device (2) becomes less than or equal to a maximum value of a corresponding one of the power-source electric power, the power-source current, and the power-source harmonic, the maximum value being obtained when no failure has occurred in the active filter device (2).

IPC Classes  ?

5.

MANUFACTURING METHOD FOR LOW MOLECULAR WEIGHT POLYTETRAFLUOROETHYLENE, AND POWDER

      
Application Number 16967875
Status Pending
Filing Date 2019-02-05
First Publication Date 2021-01-14
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Tsuji, Masayuki
  • Yoshida, Hirotoshi

Abstract

Provided is a method for producing low molecular weight polytetrafluoroethylene less likely to generate C6-C14 perfluorocarboxylic acids and salts thereof. The method for producing low molecular weight polytetrafluoroethylene includes: (1) feeding into an airtight container: high molecular weight polytetrafluoroethylene: and a gas mixture containing an inert gas and oxygen and having an oxygen content relative to the total of the inert gas and oxygen of 1 to 10 vol %; and (2) irradiating the high molecular weight polytetrafluoroethylene to provide low molecular weight polytetrafluoroethylene having a melt viscosity at 380° C. of 1.0×102 to 7.0×105 Pa·s.

IPC Classes  ?

  • C08J 3/28 - Treatment by wave energy or particle radiation
  • C08J 3/12 - Powdering or granulating

6.

MOLDING MATERIAL AND TUBE

      
Application Number 17041669
Status Pending
Filing Date 2019-02-22
First Publication Date 2021-01-14
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Imamura, Hitoshi
  • Hamada, Hiroyuki
  • Mukai, Eri
  • Kondo, Masahiro

Abstract

A molding material including a melt-fabricable fluororesin and having a metal content of 100 ng/1 g or less as measured by an ashing method. Also disclosed is a tube made of the molding material.

IPC Classes  ?

  • B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
  • B65D 35/08 - Body construction made in one piece from plastics material
  • F16L 11/04 - Hoses, i.e. flexible pipes made of rubber or flexible plastics
  • B29C 48/04 - Particle-shaped
  • C08F 8/20 - Halogenation

7.

HEAT EXCHANGER

      
Application Number 16977284
Status Pending
Filing Date 2019-02-22
First Publication Date 2021-01-07
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Nakano, Hiroyuki
  • Andou, Tooru
  • Kusaka, Hideyuki
  • Yoshioka, Shun

Abstract

A heat exchanger includes: heat transfer units that each comprise heat transfer channel portions and auxiliary heat transfer portions. The heat transfer channel portions and the auxiliary heat transfer portions extend in a first direction and are disposed in a second direction that intersects with or is perpendicular to the first direction. The heat transfer units are disposed in a third direction that is different from both of the first direction and the second direction. The heat transfer units each has an airflow-upstream region and an airflow-downstream region in the second direction. When the heat exchanger is used as an evaporator, the heat exchanger causes a refrigerant to flow into a heat transfer channel portion disposed in the airflow-upstream region, and then causes the refrigerant to flow out to a heat transfer channel portion disposed in the airflow-downstream region.

IPC Classes  ?

  • F28F 1/26 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means being integral with the element

8.

METHOD FOR PRODUCING CARBONYL COMPOUND

      
Application Number 16978997
Status Pending
Filing Date 2019-03-07
First Publication Date 2021-01-07
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Higashi, Masahiro
  • Yoneda, Satoru
  • Ishihara, Sumi
  • Kishikawa, Yosuke

Abstract

A method for producing a carbonyl compound represented by formula (1): A method for producing a carbonyl compound represented by formula (1): A method for producing a carbonyl compound represented by formula (1): wherein R1 is hydrogen or an organic group; R2 is hydrogen or an organic group; and R3 is hydrogen or an organic group; or two or three of R1, R2, and R3 may be linked to form a ring that may have at least one substituent, the method comprising step A of oxidizing an olefin compound represented by formula (2): A method for producing a carbonyl compound represented by formula (1): wherein R1 is hydrogen or an organic group; R2 is hydrogen or an organic group; and R3 is hydrogen or an organic group; or two or three of R1, R2, and R3 may be linked to form a ring that may have at least one substituent, the method comprising step A of oxidizing an olefin compound represented by formula (2): A method for producing a carbonyl compound represented by formula (1): wherein R1 is hydrogen or an organic group; R2 is hydrogen or an organic group; and R3 is hydrogen or an organic group; or two or three of R1, R2, and R3 may be linked to form a ring that may have at least one substituent, the method comprising step A of oxidizing an olefin compound represented by formula (2): wherein symbols are as defined above, by an oxidizing agent in the presence of (a) a non-alcohol organic solvent, (b) water, (c) a metal catalyst, and (d) an additive represented by the formula: MXn, wherein M is an element belonging to any one of Group 1, Group 2, Group 13, Group 14, and Group 15 in the periodic table, or NR4, wherein R is hydrogen or a C1-10 organic group; X is halogen; and n is a number of 1 to 5.

IPC Classes  ?

  • C07C 45/34 - Preparation of compounds having C=O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties in unsaturated compounds
  • C07C 51/373 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reactions not involving formation of carboxyl groups by introduction of functional groups containing oxygen only in doubly bound form
  • C07B 41/06 - Formation or introduction of functional groups containing oxygen of carbonyl groups
  • B01J 23/44 - Palladium

9.

AROMA DIFFUSION SYSTEM

      
Application Number 17040886
Status Pending
Filing Date 2019-03-22
First Publication Date 2021-01-07
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Kitagawa, Keita
  • Handa, Youichi

Abstract

An aroma diffusion system includes an aroma diffusion unit, an acquisition unit, an identification unit, and an aroma determination unit. The aroma diffusion unit has a plurality of patterns of aromas to be diffused, and diffuses an aroma corresponding to the pattern into a target space. The acquisition unit acquires person information relating to at least one of an activity and a mood of a person in the target space. The identification unit identifies at least one of the activity and the mood of the person in the target space, based on the person information acquired by the acquisition unit. The aroma determination unit determines the pattern of the aroma diffusion unit, based on a result of the identification by the identification unit.

IPC Classes  ?

  • A61L 9/12 - Apparatus, e.g. holders, therefor
  • G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
  • A61M 21/02 - Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis for inducing sleep or relaxation, e.g. by direct nerve stimulation, hypnosis, analgesia
  • F24F 1/008 - Indoor units, e.g. fan coil units with perfuming or deodorising means
  • F24F 11/65 - Electronic processing for selecting an operating mode

10.

ELECTROLYTE, ELECTROCHEMICAL DEVICE, LITHIUM ION SECONDARY BATTERY, AND MODULE

      
Application Number 16768471
Status Pending
Filing Date 2018-10-02
First Publication Date 2021-01-07
Owner DAIKIN INDUSTRIES, LTD (Japan)
Inventor
  • Kinoshita, Masakazu
  • Suzuki, Yuuki
  • Yamazaki, Shigeaki
  • Takahashi, Kenzou
  • Hidaka, Tomoya
  • Kuwajima, Yoshiko
  • Yamauchi, Akiyoshi
  • Hayashi, Kotaro

Abstract

An electrolyte solution containing LiFSO3 and a compound (1) represented by the following formula (1): LiZ, wherein Z is PF6, BF4, N(FSO2)2, N(CF3SO2)2, N(C2F5SO2)2, PO2F2, or B(C2O4)2. The electrolyte solution has a ratio [FSO3]/[Z] of a molar content of FSO3 [FSO3] to a molar content of Z [Z] of 3 to 1000. Also disclosed is an electrochemical device including the electrolyte solution, a lithium ion secondary battery including the electrolyte solution and a module including the electrochemical device.

IPC Classes  ?

  • H01M 10/0568 - Liquid materials characterised by the solutes
  • H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries

11.

REFRIGERATION CYCLE APPARATUS

      
Application Number 16955465
Status Pending
Filing Date 2018-12-10
First Publication Date 2021-01-07
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Kumakura, Eiji
  • Yamada, Takuro
  • Yoshimi, Atsushi
  • Iwata, Ikuhiro
  • Itano, Mitsushi
  • Karube, Daisuke
  • Yotsumoto, Yuuki
  • Takahashi, Kazuhiro
  • Takakuwa, Tatsuya
  • Komatsu, Yuzo
  • Ohkubo, Shun

Abstract

An air conditioning unit capable of performing a refrigeration cycle using a small-GWP refrigerant is provided. A refrigeration cycle apparatus (1, 1a to 1m) includes a refrigerant circuit (10) including a compressor (21), a condenser (23, 31, 36), a decompressing section (24, 44, 45, 33, 38), and an evaporator (31, 36, 23), and a refrigerant containing at least 1,2-difluoroethylene enclosed in the refrigerant circuit (10).

IPC Classes  ?

  • F25B 13/00 - Compression machines, plant, or systems, with reversible cycle
  • C09K 5/04 - Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice-versa

12.

AIR CONDITIONING SYSTEM

      
Application Number 16976272
Status Pending
Filing Date 2019-03-01
First Publication Date 2021-01-07
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Doumae, Hiroshi
  • Higashiyama, Shin
  • Aisaka, Yasuyuki
  • Iura, Tsutomu
  • Ueda, Hiroki

Abstract

An air conditioning system includes an outdoor unit and an indoor unit connected to the outdoor unit through an air conditioning communication line. The outdoor unit includes: a control unit; a compressor; a fan; a compressor inverter; a fan inverter; a heat exchanger; and valves of various types. The control unit of the outdoor unit has a coupling capacitor and a noise-cutting transformer which are between a communication circuit and the air conditioning communication line.

IPC Classes  ?

  • H04B 3/02 - Line transmission systems - Details
  • F24F 11/54 - Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
  • F24F 11/88 - Electrical aspects, e.g. circuits

13.

SPATIAL ENVIRONMENT MANAGEMENT SYSTEM

      
Application Number 17040889
Status Pending
Filing Date 2019-03-15
First Publication Date 2021-01-07
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Kitagawa, Keita
  • Handa, Youichi

Abstract

A spatial environment management system includes an acquisition unit, a determination unit, a device and a control unit. The acquisition unit acquires at least one of an image of a target space and a sound of the target space. The determination unit determines whether an odor emitting object is present in the target space, based on at least one of the image and the sound acquired by the acquisition unit. The device includes at least one of an airflow producing mechanism and a deodorizing mechanism. The control unit controls the device such that the device treats an odor when the determination unit determines that the odor emitting object is present in the target space.

IPC Classes  ?

  • A61L 9/03 - Apparatus therefor
  • G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
  • H04S 7/00 - Indicating arrangements; Control arrangements, e.g. balance control

14.

Air conditioner

      
Application Number 29693200
Grant Number D0907182
Status In Force
Filing Date 2019-05-31
First Publication Date 2021-01-05
Grant Date 2021-01-05
Owner DAIKIN INDUSTRIES LTD. (Japan)
Inventor Niki, Kentarou

15.

POWER CONVERSION APPARATUS

      
Application Number 17021048
Status Pending
Filing Date 2020-09-15
First Publication Date 2020-12-31
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Hayashi, Nobuo
  • Ogawa, Takurou
  • Ueki, Daisuke
  • Sekimoto, Morimitsu

Abstract

In order to suppress vibration with a motor a load torque of which periodically fluctuates, an output torque of the motor is controlled to be periodically changed. In this case, in order to increase a vibration suppressing component by a direct power conversion apparatus, at least one of first control and second control is performed. In the first control, an output torque having a waveform including a fundamental frequency component of the load torque a fundamental frequency of which is a frequency in accordance with a fluctuation period of the load torque and at least one of a fourth harmonic and a sixth harmonic of a power source frequency of an AC power source is generated. In the second control, the output torque having a waveform including at least one of a second harmonic and a third harmonic of the fundamental frequency of the load torque and a second harmonic of the power source frequency of the AC power source is generated.

IPC Classes  ?

  • H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
  • H02M 5/458 - Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
  • H02M 1/14 - Arrangements for reducing ripples from dc input or output

16.

PURIFICATION METHOD

      
Application Number 16956667
Status Pending
Filing Date 2018-12-21
First Publication Date 2020-12-31
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Nagai, Takabumi
  • Kishikawa, Yosuke

Abstract

An object of the present disclosure is to provide a method for purifying the following fullerene derivative represented by formula (1) that is advantageous in production costs. The object is achieved by the method for purifying the fullerene derivative represented by formula (1) An object of the present disclosure is to provide a method for purifying the following fullerene derivative represented by formula (1) that is advantageous in production costs. The object is achieved by the method for purifying the fullerene derivative represented by formula (1) wherein R1 represents an organic group, R2 represents an organic group, R3 represents a hydrogen atom or an organic group, R4 represents a hydrogen atom or an organic group, ring A represents a fullerene ring, n represents a number of 1 or more, and when n is 2 or more, in one or more pairs of monocyclic moieties represented by the following partial formula: An object of the present disclosure is to provide a method for purifying the following fullerene derivative represented by formula (1) that is advantageous in production costs. The object is achieved by the method for purifying the fullerene derivative represented by formula (1) wherein R1 represents an organic group, R2 represents an organic group, R3 represents a hydrogen atom or an organic group, R4 represents a hydrogen atom or an organic group, ring A represents a fullerene ring, n represents a number of 1 or more, and when n is 2 or more, in one or more pairs of monocyclic moieties represented by the following partial formula: one substituent selected from the group consisting of R2, R3, and R4 of one of the two monocyclic moieties is connected with one substituent selected from the group consisting of R2, R3, and R4 of the other of the two monocyclic moieties to form a tricyclic moiety, the method including step 1 of contacting a composition containing the fullerene derivative represented by formula (1) as a target product for purification and one or more impure fullerene compounds with an aluminum-containing inorganic porous adsorbent.

IPC Classes  ?

  • B01D 15/20 - Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to the conditioning of the sorbent material
  • C07D 209/70 - [b]- or [c]-condensed containing carbocyclic rings other than six-membered
  • B01J 20/284 - Porous sorbents based on alumina
  • B01D 15/42 - Selective adsorption, e.g. chromatography characterised by the development mode, e.g. by displacement or by elution

17.

COATING FILM AND COATED ARTICLE

      
Application Number 16980949
Status Pending
Filing Date 2019-03-18
First Publication Date 2020-12-31
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Imoto, Katsuhiko
  • Wada, Susumu
  • Nagato, Masaru
  • Tomooka, Hiroshi

Abstract

Provided is a coating film that is less likely to be deteriorated even after exposure to hydrogen peroxide. The coating film is for use in an environment including exposure to hydrogen peroxide and includes a fluorine atom and a urethane bond.

IPC Classes  ?

  • C09D 127/18 - Homopolymers or copolymers of tetrafluoroethene
  • C08G 18/46 - Polycondensates having carboxylic or carbonic ester groups in the main chain having hetero atoms other than oxygen
  • C09D 175/04 - Polyurethanes
  • B05D 3/10 - Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means

18.

NON-AQUEOUS DISPERSION

      
Application Number 16971961
Status Pending
Filing Date 2019-02-07
First Publication Date 2020-12-24
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Matsumoto, Haruna
  • Murakami, Shinji

Abstract

Provided is a highly stable non-aqueous dispersion even without surfactants. The present invention relates to a non-aqueous dispersion including a fluoropolymer and a non-aqueous solvent, the fluoropolymer in the non-aqueous dispersion having an average dispersed particle size of smaller than 1.0 μm, the fluoropolymer being present in an amount of 5 to 45% by mass, the non-aqueous solvent having a surface tension of 30 mN/m or lower, the non-aqueous dispersion containing a surfactant in an amount of less than 0.1% by mass relative to the fluoropolymer.

IPC Classes  ?

  • C08J 3/11 - Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids from solid polymers

19.

ALKYL SULFATE ESTER OR SALT OF SAME

      
Application Number 16498576
Status Pending
Filing Date 2018-03-30
First Publication Date 2020-12-24
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Yoneda, Satoru
  • Higashi, Masahiro
  • Yamauchi, Akiyoshi
  • Ishihara, Sumi
  • Kishikawa, Yosuke
  • Nakano, Marina
  • Nitta, Shinnosuke
  • Aoyama, Hirokazu

Abstract

An alkyl sulfate ester containing a carbonyl group or a salt thereof. The compound is represented by the following formula: An alkyl sulfate ester containing a carbonyl group or a salt thereof. The compound is represented by the following formula: R1—C(═O)—(CR22)n—(OR3)p(CR42)q-L-OSO3X An alkyl sulfate ester containing a carbonyl group or a salt thereof. The compound is represented by the following formula: R1—C(═O)—(CR22)n—(OR3)p(CR42)q-L-OSO3X wherein R1, R2, R3, R4, L, X, n, p and q are as defined herein. Also disclosed is a production method for making the alkyl sulfate ester.

IPC Classes  ?

  • C07C 305/10 - Esters of sulfuric acids having oxygen atoms of sulfate groups bound to acyclic carbon atoms of a carbon skeleton being acyclic and saturated being further substituted by singly-bound oxygen atoms
  • C07C 303/24 - Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of esters of sulfuric acids

20.

REFRIGERATION APPARATUS

      
Application Number 17012868
Status Pending
Filing Date 2020-09-04
First Publication Date 2020-12-24
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Haikawa, Tomoyuki
  • Minamida, Tomoatsu
  • Taira, Shigeharu

Abstract

To reduce the possibility that temperature of refrigerant discharged from a compressor of a refrigeration apparatus becomes excessively high by controlling torque of a motor built into the compressor, the compressor includes the motor having rotation thereof controlled by inverter control. An inverter controller controls torque of the motor using inverter control when operation frequency of the compressor is at least one value within a range of from 10 Hz to 40 Hz. When at least the operation frequency is within the range of from 10 Hz to 40 Hz, torque of the motor is controlled, and under a predetermined condition in which temperature of refrigerant discharged from the compressor easily becomes excessively high, a device controller controls devices provided in a refrigerant circuit such that refrigerant sucked into the compressor is placed in a wet vapor state.

IPC Classes  ?

  • F25B 1/04 - Compression machines, plant or systems with non-reversible cycle with compressor of rotary type
  • F25B 1/00 - Compression machines, plant or systems with non-reversible cycle
  • F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plant or systems

21.

SEMICONDUCTOR DEVICE

      
Application Number 17012937
Status Pending
Filing Date 2020-09-04
First Publication Date 2020-12-24
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Tsubouchi, Kazuya
  • Kono, Masaki

Abstract

A gate voltage control/gate resistance changing circuit (21) is accommodated in the same package (P1) as a switching element (11), and outputs a driving signal to the switching element (11) to control turning on and off of the switching element (11). When an external signal is input from outside of the package (P1) to a terminal (3c) of the package (P1), a changing unit (221) accommodated in the package (P1) changes the switching speed of the switching element (11) based on the signal.

IPC Classes  ?

  • H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
  • H02P 29/50 - Reduction of harmonics

22.

COMPRESSOR

      
Application Number 16772986
Status Pending
Filing Date 2018-12-18
First Publication Date 2020-12-17
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Asano, Yoshinari
  • Aota, Keiji
  • Itano, Mitsushi
  • Karube, Daisuke
  • Yotsumoto, Yuuki
  • Takahashi, Kazuhiro
  • Komatsu, Yuzo
  • Ohkubo, Shun
  • Takakuwa, Tatsuya
  • Tsuda, Tetsushi

Abstract

High efficiency of a compressor that compresses a mixed refrigerant containing at least 1,2-difluoroethylene is achieved. A compressor (100) includes a motor (70) that has a rotor (71) including permanent magnets (712) and thus is suitable for a variable capacity compressor in which the number of rotations of the motor can be changed. In this case, it is possible to change the number of rotations of the motor in accordance with an air conditioning load in an air conditioner (1) that uses a mixed refrigerant containing at least 1,2-difluoroechylene. It is thus possible to enable high efficiency of the compressor (100).

IPC Classes  ?

  • F25B 31/02 - Compressor arrangements of motor-compressor units
  • C09K 5/04 - Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice-versa
  • F25B 9/00 - Compression machines, plant, or systems, in which the refrigerant is air or other gas of low boiling point

23.

REFRIGERATION CYCLE APPARATUS

      
Application Number 16912166
Status Pending
Filing Date 2020-06-25
First Publication Date 2020-12-17
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Kumakura, Eiji
  • Yamada, Takuro
  • Yoshimi, Atsushi
  • Iwata, Ikuhiro
  • Itano, Mitsushi
  • Karube, Daisuke
  • Yotsumoto, Yuuki
  • Takahashi, Kazuhiro
  • Takakuwa, Tatsuya
  • Komatsu, Yuzo
  • Ohkubo, Shun

Abstract

A refrigeration cycle apparatus that is able to suppress a decrease in capacity when a refrigerant that contains at least 1,2-difluoroethylene is used is provided. In an air conditioner (1) including a refrigerant circuit (10) in which a compressor (21), an outdoor heat exchanger (23), an outdoor expansion valve (24), a liquid-side connection pipe (6), an indoor heat exchanger (31), and a gas-side connection pipe (5) are connected, a refrigerant containing at least 1,2-difluoroethylene is used, a pipe outer diameter of the liquid-side connection pipe (6) and a pipe outer diameter of the gas-side connection pipe (5) each are D0/8 inches (where, “D0-⅛ inches” is a pipe outer diameter of a connection pipe when refrigerant R32 is used), a range of the D0 of the liquid-side connection pipe (6) is “2≤D0≤4”, and a range of the D0 of the gas-side connection pipe (5) is “3≤D0≤8”.

IPC Classes  ?

  • F25B 41/00 - Fluid-circulation arrangements
  • C09K 5/04 - Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice-versa

24.

AIR CONDITIONER

      
Application Number 16913415
Status Pending
Filing Date 2020-06-26
First Publication Date 2020-12-17
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Ohtsuka, Keisuke
  • Itano, Mitsushi
  • Karube, Daisuke
  • Yotsumoto, Yuuki
  • Takahashi, Kazuhiro
  • Komatsu, Yuzo
  • Ohkubo, Shun
  • Takakuwa, Tatsuya
  • Tsuda, Tetsushi

Abstract

In an air conditioner that uses a refrigerant mixture containing at least 1,2-difluoroethylene, high efficiency is achieved. The motor rotation rate of a compressor (100) can be changed in accordance with an air conditioning load, and thus a high annual performance factor (APF) can be achieved. In addition, an electrolytic capacitor is not required on an output side of a rectifier circuit (21), and thus an increase in the size and cost of the circuit is suppressed.

IPC Classes  ?

  • C09K 5/04 - Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice-versa
  • F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plant or systems

25.

REFRIGERATION CYCLE APPARATUS

      
Application Number 16954631
Status Pending
Filing Date 2018-11-13
First Publication Date 2020-12-17
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Itano, Mitsushi
  • Karube, Daisuke
  • Yotsumoto, Yuuki
  • Takahashi, Kazuhiro
  • Komatsu, Yuzo
  • Ohkubo, Shun
  • Takakuwa, Tatsuya
  • Tsuda, Tetsushi
  • Abe, Takeo
  • Toda, Yumi

Abstract

There is provided a refrigeration cycle apparatus in which good lubricity can be achieved when a refrigeration cycle is performed using a refrigerant having a sufficiently low GWP. The refrigeration cycle apparatus contains a refrigerating oil and a refrigerant composition containing a refrigerant containing trans-1,2-difluoroethylene (HFO-1132(E)), trifluoroethylene (HFO-1123), and 2,3,3,3-tetrafluoro-1-propene (R1234yf).

IPC Classes  ?

  • C09K 5/04 - Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice-versa
  • F25B 1/00 - Compression machines, plant or systems with non-reversible cycle

26.

DRUG-CONTAINING CAPSULE, AND COMPONENT FOR AIR TREATMENT DEVICE

      
Application Number 17003413
Status Pending
Filing Date 2020-08-26
First Publication Date 2020-12-17
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Donoshita, Yuka
  • Sakamoto, Masako

Abstract

A drug-containing capsule (20, 30, 40) includes a capsule material (21, 31, 41) and a drug (22, 32, 42) disposed within the capsule material (21, 31, 41) and having a sterilization action for a specific microorganism. The capsule material (21, 31, 41) includes a degradable part (21a, 31a, 41a) formed of a raw material that is caused to biodegrade by the specific microorganism. This results in suppression of release of the drug while the specific microorganism does not proliferate.

IPC Classes  ?

  • A61L 2/235 - Solid substances, e.g. granules, powders, blocks, tablets cellular, porous or foamed
  • A01N 25/34 - Shaped forms, e.g. sheets, not provided for in any other group of this main group
  • F28F 13/18 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by surface treatment, e.g. polishing

27.

INSIDE AIR CONTROL SYSTEM

      
Application Number 17003547
Status Pending
Filing Date 2020-08-26
First Publication Date 2020-12-17
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Fujimoto, Yuusuke
  • Kamei, Noritaka

Abstract

While an inside air control system is performing an air composition maintenance action, a controller instructs a gas supply device to operate while switching among a first supply operation, a second supply operation, an outside air supply operation, and a standby operation. In the first supply operation, first low oxygen concentration air is supplied into a container. In the second supply operation, second low oxygen concentration air having a lower oxygen concentration than the first low oxygen concentration air is supplied into the container. In the outside air supply operation, outside air is supplied into the container. In the standby operation, supply of the low oxygen concentration air and the outside air into the container is stopped.

IPC Classes  ?

  • A23B 7/148 - Preserving or ripening with chemicals not covered by group or in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
  • A01F 25/14 - Containers specially adapted for storing

28.

FLUORINE RUBBER COMPOSITION AND CROSSLINKED FLUORINE RUBBER PRODUCT

      
Application Number 16971965
Status Pending
Filing Date 2019-02-22
First Publication Date 2020-12-17
Owner
  • DAIKIN INDUSTRIES, LTD. (Japan)
  • BRIDGESTONE CORPORATION (Japan)
Inventor
  • Arai, Masashi
  • Ohta, Daisuke
  • Ueda, Akinori
  • Oda, Yasuhiro
  • Oride, Junichi

Abstract

A fluoroelastomer composition, and a crosslinked fluoroelastomer obtained by crosslinking the fluoroelastomer composition. The fluoroelastomer composition contains 10 to 60 parts by mass of a carbon black (B) and 0.1 to 10 parts by mass of a peroxide cross-linking agent (C) per 100 parts by mass of a peroxide-crosslinkable fluoroelastomer (A). The carbon black (B) has a number of foreign particles of 30/mm2 or less measured as described herein.

IPC Classes  ?

29.

AIR CONDTIONING APPARATUS INDOOR UNIT INCLUDING REFRIGERANT DETECTION SENSOR

      
Application Number 16616560
Status Pending
Filing Date 2018-07-03
First Publication Date 2020-12-17
Owner Daikin Industries, LTD. (Japan)
Inventor Nouchi, Yoshiteru

Abstract

An indoor unit includes: a blow-out port through which air is blown into a space to be air-conditioned; a refrigerant flow path through which flammable refrigerant gas flows; and a refrigerant detection sensor that detects the flammable refrigerant gas that leaks out of the refrigerant flow path. The refrigerant detection sensor faces the space. The refrigerant detection sensor includes a casing. The casing includes a gas intake port that takes in the flammable refrigerant gas. An outside-air-flow-area part of the refrigerant detection sensor is disposed outside of an air flow area through which the air blown through the blow-out port passes. The gas intake port is disposed on the outside-air-flow-area part.

IPC Classes  ?

  • F24F 1/0047 - Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling
  • F24F 1/0011 - Indoor units, e.g. fan coil units characterised by air outlets
  • F24F 1/0068 - Indoor units, e.g. fan coil units characterised by the arrangement of refrigerant piping outside the heat exchanger within the unit casing
  • F24F 13/068 - Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser formed as perforated walls, ceilings or floors
  • F24F 13/20 - Casings or covers
  • F24F 13/10 - Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
  • F24F 11/36 - Responding to malfunctions or emergencies to leakage of heat-exchange fluid
  • F24F 1/0073 - Indoor units, e.g. fan coil units with means for purifying supplied air characterised by the mounting or arrangement of filters
  • F24F 13/28 - Arrangement or mounting of filters

30.

LAYERED PRODUCT

      
Application Number 16757958
Status Pending
Filing Date 2018-10-30
First Publication Date 2020-12-17
Owner
  • DAIKIN INDUSTRIES, LTD. (Japan)
  • DAIKIN AMERICA, INC. (USA)
Inventor
  • Honda, Yoshiaki
  • Fukuda, Teruyuki
  • Ohya, Akiko

Abstract

A laminated product in which a first base material layer, an adhesive layer and a second base material layer are stacked in this order, wherein an edge of the laminated product is covered with a layer formed by a curable composition including at least one perfluoropolyether group-containing compound.

IPC Classes  ?

  • C09D 171/00 - Coating compositions based on polyethers obtained by reactions forming an ether link in the main chain; Coating compositions based on derivatives of such polymers
  • C09J 7/10 - Adhesives in the form of films or foils without carriers
  • B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
  • B32B 17/06 - Layered products essentially comprising sheet glass, or fibres of glass, slag or the like comprising glass as the main or only constituent of a layer, next to another layer of a specific substance

31.

AIR MANAGEMENT SYSTEM MEMBER AND FLUORORUBBER COMPOSITION

      
Application Number 16764204
Status Pending
Filing Date 2018-11-05
First Publication Date 2020-12-17
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Takemura, Kouhei
  • Kamiya, Yusuke

Abstract

An air management system component containing a crosslinked fluoroelastomer layer obtained by crosslinking a fluoroelastomer composition that contains a peroxide-crosslinkable fluoroelastomer and a hydrotalcite compound. Also disclosed is the fluoroelastomer composition.

IPC Classes  ?

  • C08L 27/14 - Homopolymers or copolymers of vinyl fluoride
  • C08L 27/18 - Homopolymers or copolymers of tetrafluoroethene
  • C08L 27/20 - Homopolymers or copolymers of hexafluoropropene
  • C08K 3/26 - Carbonates; Bicarbonates
  • C08K 5/00 - Use of organic ingredients
  • C08K 5/14 - Peroxides
  • B32B 1/08 - Tubular products
  • B32B 25/20 - Layered products essentially comprising natural or synthetic rubber comprising silicone rubber
  • B32B 27/30 - Layered products essentially comprising synthetic resin comprising acrylic resin
  • B32B 27/18 - Layered products essentially comprising synthetic resin characterised by the use of special additives

32.

COMPOSITION, COATING, COATING FILM, BACK SHEET FOR SOLAR CELL MODULE AND SOLAR CELL MODULE

      
Application Number 16766313
Status Pending
Filing Date 2018-11-20
First Publication Date 2020-12-17
Owner
  • DAIKIN FLUOROCHEMICALS (CHINA) CO., LTD. (China)
  • DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Liu, Weiwei
  • Nakagawa, Hideto
  • Nagato, Masaru

Abstract

A composition containing a fluorine-containing polymer having a curable functional group and a pentamethylene diisocyanate-based curing agent. Also disclosed is a coating film obtained from the composition; a laminate including a substrate and a layer obtained from the composition; a back sheet for a solar cell module having a water-impermeable sheet and a coating film obtained from the composition, the coating film being formed on at least one side of the water-impermeable sheet; and a solar cell module having a water-impermeable sheet and a coating film obtained from the composition, the coating film being formed on at least one side of the water-impermeable sheet, and a sealant layer formed above the coating film.

IPC Classes  ?

  • C09D 127/18 - Homopolymers or copolymers of tetrafluoroethene
  • C09D 7/61 - Additives non-macromolecular inorganic
  • C09D 7/48 - Stabilisers against degradation by oxygen, light or heat
  • H01L 31/048 - Encapsulation of modules
  • H01L 31/049 - Protective back sheets

33.

COMPRESSOR

      
Application Number 16771565
Status Pending
Filing Date 2018-10-29
First Publication Date 2020-12-17
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Honda, Keita
  • Adachi, Makoto
  • Fujii, Yuusuke

Abstract

A compressor includes a compression mechanism, a casing, and a temperature detector. The compression mechanism includes a rotation axis. The casing accommodates the compression mechanism. The casing includes a compression mechanism contact portion. The compression mechanism is in contact with an inner surface of the compression mechanism contact portion. The temperature detector is attached to an outer surface of the compression mechanism contact portion and is configured to sense temperature of the compression mechanism contact portion.

IPC Classes  ?

  • F04C 28/28 - Safety arrangements; Monitoring
  • F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

34.

COMPRESSOR

      
Application Number 16772976
Status Pending
Filing Date 2018-12-18
First Publication Date 2020-12-17
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Asano, Yoshinari
  • Aota, Keiji
  • Itano, Mitsushi
  • Karube, Daisuke
  • Yotsumoto, Yuuki
  • Takahashi, Kazuhiro
  • Komatsu, Yuzo
  • Ohkubo, Shun
  • Takakuwa, Tatsuya
  • Tsuda, Tetsushi

Abstract

High power of a compressor that compresses a mixed refrigerant containing at least 1,2-difluoroethylene is achieved. A compressor (100) employs an induction motor (70) as a motor that drives a compression unit (60) that compresses a mixed refrigerant containing at least 1,2-difluoroethylene, and thus, high power is enabled at comparatively low costs.

IPC Classes  ?

  • F25B 31/02 - Compressor arrangements of motor-compressor units
  • C09K 5/04 - Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice-versa
  • F25B 9/00 - Compression machines, plant, or systems, in which the refrigerant is air or other gas of low boiling point
  • F25B 31/00 - Compressor arrangements

35.

REFRIGERANT-CONTAINING COMPOSITION, USE THEREOF AND REFRIGERATOR COMPRISING SAME, AND METHOD FOR OPERATING SAID REFRIGERATOR

      
Application Number 16913648
Status Pending
Filing Date 2020-06-26
First Publication Date 2020-12-17
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Itano, Mitsushi
  • Karube, Daisuke
  • Yotsumoto, Yuuki
  • Takahashi, Kazuhiro

Abstract

Provided is a refrigerant composition having two types of performance, i.e., a coefficient of performance that is equivalent to that of R410A and a sufficiently low GWP. Provided is a composition comprising a refrigerant, the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132(E)), trifluoroethylene (HFO-1123), and difluoromethane (R32) at specific concentrations.

IPC Classes  ?

  • C09K 5/04 - Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice-versa

36.

METHOD FOR MANUFACTURING PROCESSED ARTICLE, TOOL PATH CALCULATION METHOD, PROCESSED ARTICLE, AND IMPELLER

      
Application Number 16975592
Status Pending
Filing Date 2019-02-27
First Publication Date 2020-12-17
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor Okada, Tadashi

Abstract

A processed article is manufactured with a tool including a cutting blade. The cutting blade is arranged to be in contact with two machined segment surfaces so that two contact points are defined between the two machined segment surfaces and the cutting blade in a corner. A machining pitch is set in a pick feed direction of the tool at the corner to a first machining pitch for when a part of the cutting blade corresponding to a projected shape of a side surface of the cutting blade having a first curvature radius is a cutting point. A cut is performed along a feed direction in the two adjacent machined segment surfaces successively at the corner so that the tool proceeds toward the corner in one of the machined segment surfaces and away from the corner in the other one of the machined segment surfaces.

IPC Classes  ?

  • B23C 3/18 - Working surfaces curved in two directions for shaping screw-propellers, turbine blades, or impellers
  • F04D 29/28 - Rotors specially adapted for elastic fluids for centrifugal or helico-centrifugal pumps

37.

METHOD FOR MANUFACTURING FLUOROPOLYMER

      
Application Number 16976945
Status Pending
Filing Date 2019-03-01
First Publication Date 2020-12-17
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Nanba, Yoshinori
  • Ichikawa, Kenji
  • Fujimoto, Yohei
  • Yoshida, Hirotoshi
  • Sato, Hiroyuki
  • Kato, Taketo
  • Ito, Kengo
  • Ishihara, Sumi
  • Higashi, Masahiro
  • Yoneda, Satoru
  • Aoyama, Hirokazu
  • Sukegawa, Masamichi
  • Kishikawa, Yosuke
  • Taira, Takahiro
  • Okui, Chiaki
  • Yamanaka, Taku

Abstract

A method for producing a fluoropolymer, which includes polymerizing a fluoromonomer in an aqueous medium in the presence of a polymer (1), the polymer (1) including a polymerized unit derived from a monomer CX2═CY(—CZ2—O—Rf-A), wherein X is the same or different and is —H or —F; Y is —H, —F, an alkyl group, or a fluorine-containing alkyl group; Z is the same or different and is —H, —F, an alkyl group, or a fluoroalkyl group; Rf is a C1-C40 fluorine-containing alkylene group or a C—C100 fluorine-containing alkylene group and having an ether bond; and A is —COOM, —SO3M, or —OSO3M, wherein M is —H, a metal atom, —NR74, imidazolium optionally having a substituent, pyridinium optionally having a substituent, or phosphonium optionally having a substituent, wherein R7 is H or an organic group, providing that at least one of X, Y, and Z contains a fluorine atom.

IPC Classes  ?

  • C08F 14/26 - Tetrafluoroethene
  • C08F 2/22 - Emulsion polymerisation
  • C08F 2/44 - Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
  • B29C 55/00 - Shaping by stretching, e.g. drawing through a die; Apparatus therefor

38.

HYDROELECTRIC POWER GENERATION SYSTEM

      
Application Number 16332430
Status Pending
Filing Date 2017-09-11
First Publication Date 2020-12-10
Owner Daikin Industries, Ltd. (Japan)
Inventor
  • Abe, Takahiro
  • Suhara, Atsushi
  • Yokoyama, Takahiro

Abstract

An electric power information acquisition unit is provided for acquiring power supply-and-demand information including electric power acceptable to an electric power system or information correlated with the electric power. A fluid information acquisition unit is provided for acquiring fluid information including information correlated with a physical quantity of a fluid flowing out of a channel. A controller is provided for controlling at least one of the physical quantity, the channel or electric power generated or electric power to be generated by a generator by using the fluid information so that the physical quantity becomes equal to a desired value, while controlling electric power to be supplied to the electric power system to the electric power acceptable to the electric power system or less, by using the power supply-and-demand information.

IPC Classes  ?

  • F03B 15/08 - Regulating, i.e. acting automatically by speed, e.g. by measuring electric frequency or liquid flow
  • F03B 15/16 - Regulating, i.e. acting automatically by power output
  • H02P 9/04 - Control effected upon non-electric prime mover and dependent upon electric output value of the generator

39.

HEAT SOURCE UNIT FOR REFRIGERATION DEVICE

      
Application Number 16492738
Status Pending
Filing Date 2018-03-05
First Publication Date 2020-12-10
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Uzawa, Aika
  • Nagashima, Toshihiro

Abstract

A casing of a heat source unit for a refrigeration device is configured to allow air to flow from a machine chamber disposed at a lower portion of the casing to a heat exchange chamber disposed above the machine chamber. An electric component box is comprised of a bottom panel, a side panel which has a vent opening, a top panel, and a vent opening cover for covering the vent opening of the side panel. The vent opening cover is provided with a plurality of slits extending in the vertical direction at positions deviated from a portion opposed to the vent opening of the side panel.

IPC Classes  ?

40.

HEAT EXCHANGER AND AIR CONDITIONER

      
Application Number 16497604
Status Pending
Filing Date 2018-03-27
First Publication Date 2020-12-10
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Inoue, Satoshi
  • Yoshioka, Shun
  • Jindou, Masanori
  • Oritani, Yoshio
  • Sakamaki, Tomohiko
  • Yamaguchi, Tomoya
  • Satou, Ken
  • Yamada, Kouju
  • Matsuda, Hiroaki

Abstract

A heat exchanger includes: a header; flat tubes disposed in line along a longitudinal direction of the header and connected to the header: a refrigerant pipe connected to an introduction space in the header; and a nozzle. When the heat exchanger operates as an evaporator of a refrigerant, the refrigerant is fed through the nozzle from the introduction space to a supply space disposed adjacent to the introduction space in the longitudinal direction of the header. The nozzle is disposed on a side closer to the flat tubes than to the refrigerant pipe. A width of a first zone in the introduction space on the side closer to the flat tubes is smaller than a width of a second zone in the introduction space on a side where the refrigerant pipe is connected.

IPC Classes  ?

  • F28D 1/047 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or mo with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
  • F28D 1/053 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or mo with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
  • F28F 1/32 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
  • F28F 9/02 - Header boxes; End plates
  • F24F 1/18 - Heat exchangers specially adapted for separate outdoor units characterised by their shape
  • F25B 39/00 - Evaporators; Condensers

41.

HEAT EXCHANGER OR REFRIGERATION APPARATUS

      
Application Number 16498776
Status Pending
Filing Date 2018-03-22
First Publication Date 2020-12-10
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Matsumoto, Yoshiyuki
  • Yoshioka, Shun
  • Agou, Shouta

Abstract

A heat exchanger in which a refrigerant that flows in from a first inlet and a second inlet exchanges heat with air flow and flows out from an outlet includes: an upwind heat-exchanging unit; a downwind heat-exchanging unit that includes the second inlet and is disposed beside the upwind heat-exchanging unit on a downwind side of the upwind heat-exchanging unit; and a flow path formation portion that includes a refrigerant flow path between the upwind heat-exchanging unit and the downwind heat-exchanging unit.

IPC Classes  ?

  • F25B 39/02 - Evaporators
  • F28D 1/04 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or mo with the heat-exchange conduits immersed in the body of fluid with tubular conduits
  • F28D 1/047 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or mo with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
  • F28D 1/053 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or mo with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
  • F28F 1/32 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
  • F28F 9/02 - Header boxes; End plates
  • F28F 9/26 - Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
  • F24F 1/0018 - Indoor units, e.g. fan coil units characterised by fans
  • F25B 39/04 - Condensers

42.

CATALYST PELLET

      
Application Number 16644922
Status Pending
Filing Date 2018-09-11
First Publication Date 2020-12-10
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Liu, Jihong
  • Karube, Daisuke

Abstract

A catalyst pellet has the shape of a column and has a cross-section having the shape of an ellipse in a direction perpendicular to an axis.

IPC Classes  ?

  • B01J 35/04 - Foraminous structures, sieves, grids, honeycombs
  • B01J 21/04 - Alumina
  • B01J 21/08 - Silica
  • B01J 23/06 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of zinc, cadmium or mercury
  • B01J 35/02 - Solids

43.

DOUBLE PIPE ICEMAKER

      
Application Number 16769079
Status Pending
Filing Date 2019-01-11
First Publication Date 2020-12-10
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Nakayama, Takahito
  • Matsue, Ryouji
  • Nakatsuka, Keisuke
  • Ohkura, Satoru
  • Ueno, Takeo

Abstract

A double pipe icemaker includes an inner pipe, and an outer pipe provided radially outside the inner pipe and coaxially with the inner pipe. The outer pipe allows a cooling target to flow in the inner pipe and a refrigerant to flow in a space between the inner and outer pipes. The outer pipe has a wall provided with at least one nozzle to jet the refrigerant into the space. The nozzle has a jet port. The jet port may allow the refrigerant to jet in a radial direction including at least an axial direction and a circumferential direction of the inner pipe. A shielding plate may be provided ahead of the jet port in a jetting direction such that the refrigerant hitting the shielding plate expands along a surface of the shielding plate in a radial direction.

IPC Classes  ?

  • F25C 1/12 - Producing ice by freezing water on cooled surfaces, e.g. to form slabs

44.

REFRIGERANT-CONTAINING COMPOSITION, USE THEREOF AND REFRIGERATOR COMPRISING SAME, AND METHOD FOR OPERATING SAID REFRIGERATOR

      
Application Number 16772589
Status Pending
Filing Date 2018-12-18
First Publication Date 2020-12-10
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Itano, Mitsushi
  • Karube, Daisuke
  • Yotsumoto, Yuuki
  • Takahashi, Kazuhiro

Abstract

Provided is a refrigerant composition having two types of performance, i.e., a coefficient of performance that is equivalent to that of R410A and a sufficiently low GWP. Provided is a composition comprising a refrigerant, the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132(E)), trifluoroethylene (HFO-1123), and difluoromethane (R32) at specific concentrations.

IPC Classes  ?

  • C09K 5/04 - Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice-versa
  • F25B 41/00 - Fluid-circulation arrangements

45.

ICE MAKING SYSTEM

      
Application Number 16961770
Status Pending
Filing Date 2018-12-12
First Publication Date 2020-12-10
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Kondou, Azuma
  • Yasuda, Shouhei
  • Nakayama, Takahito
  • Nomura, Kazuyoshi
  • Ueno, Takeo

Abstract

An ice making system includes a tank that stores a medium to be cooled, an ice making machine that cools the medium and makes ice, a pump that circulates the medium between the tank and the ice making machine, a de-icing mechanism that heats the medium and melts the ice in the ice making machine, and a control device that controls operations of the ice making machine, the pump, and the de-icing mechanism. The ice making machine includes a cooling chamber that cools the medium, an inflow port through which the medium flows into the cooling chamber, and a discharge port through which the medium is discharged from the cooling chamber. The control device activates the de-icing mechanism when a pressure difference between a pressure of the medium at the inflow port and a pressure of the medium at the discharge port exceeds a predetermined value.

IPC Classes  ?

  • F25C 5/12 - Ice-shaving machines
  • F25C 5/10 - Apparatus for disintegrating, removing or harvesting ice without the use of saws by heating bodies in contact with the ice using fluid heated by refrigerant

46.

System and Method for Heating and Cooling

      
Application Number 17000339
Status Pending
Filing Date 2020-08-23
First Publication Date 2020-12-10
Owner
  • Daikin Manufacturing Company, L.P. (USA)
  • Daikin Industries, Ltd. (Japan)
Inventor
  • Honda, Masahiro
  • Shimoda, Junichi
  • Shimamura, Takashi
  • Yamada, Yuuji
  • Nakagawa, Hideyuki
  • Imada, Hiroyuki
  • Palazzolo, David
  • Hearnsberger, Joseph Kelly
  • Venkat, Sriram
  • Bellshaw, Chris
  • Clements, John
  • Oka, Masahiro
  • Nakai, Akinori
  • Li, Cheng
  • Yamada, Takahiro

Abstract

An HVAC system is provided. Embodiments of the present disclosure generally relate to an HVAC system in which a first controller is configured to provide a communicating protocol to a first HVAC component and a second controller is configured to receive a communicating protocol from the first controller and output an on/off protocol to a second HVAC component

IPC Classes  ?

  • F24F 11/46 - Improving electric energy efficiency or saving
  • F24F 1/08 - Compressors specially adapted for separate outdoor units
  • F24F 1/32 - Refrigerant piping for connecting the separate outdoor unit to indoor units
  • F24F 3/06 - Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
  • F24F 11/64 - Electronic processing using pre-stored data
  • F24F 11/65 - Electronic processing for selecting an operating mode
  • F24F 11/80 - Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
  • F24H 3/00 - Air heaters having heat generating means
  • G05B 19/042 - Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
  • F25B 30/02 - Heat pumps of the compression type
  • F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plant or systems
  • F25B 13/00 - Compression machines, plant, or systems, with reversible cycle

47.

REFRIGERATION APPARATUS

      
Application Number 17001214
Status Pending
Filing Date 2020-08-24
First Publication Date 2020-12-10
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Tanaka, Masaru
  • Taira, Shigeharu
  • Haikawa, Tomoyuki
  • Shimizu, Yoshiki

Abstract

A refrigeration apparatus includes a heat source unit, a utilization unit, and a liquid refrigerant pipe and gas refrigerant pipe. The utilization unit has utilization unit internal pipelines. The liquid refrigerant pipe and the gas refrigerant pipe connect the heat source unit and the utilization unit internal pipelines. A refrigerant circulates through the heat source unit, the utilization unit, the liquid refrigerant pipe, and the gas refrigerant pipe. The refrigerant contains a compound represented by a molecular formula having one or more carbon-carbon unsaturated bonds. A disproportionation inhibitor for reducing a disproportionation reaction of the refrigerant is applied to at least a part of inner surfaces of the liquid refrigerant pipe, the gas refrigerant pipe, and the utilization unit internal pipelines.

IPC Classes  ?

  • C09K 5/04 - Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice-versa
  • F25B 13/00 - Compression machines, plant, or systems, with reversible cycle
  • F25B 45/00 - Arrangements for charging or discharging refrigerant

48.

HEAT EXCHANGER OR REFRIGERATION APPARATUS

      
Application Number 16498724
Status Pending
Filing Date 2018-03-22
First Publication Date 2020-12-10
Owner DAIKIN INDUSTRIES, LTD. (Republic of Korea)
Inventor
  • Yoshioka, Shun
  • Matsumoto, Yoshiyuki
  • Agou, Shouta

Abstract

A heat exchanger in which a refrigerant and air flow exchange heat includes a first heat-exchanging unit. The first heat-exchanging unit includes: a first header including a first gas refrigerant inlet/outlet; a second header including a first liquid refrigerant inlet/outlet; a plurality of first flat tubes disposed side by side in a longitudinal direction of the first header and the second header; and a first communication path formation portion that is connected to the first header and the second header and that forms a first communication path.

IPC Classes  ?

  • F24F 1/0067 - Indoor units, e.g. fan coil units characterised by heat exchangers by the shape of the heat exchangers or of parts thereof, e.g. of their fins
  • F24F 1/0014 - Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
  • F24F 1/0047 - Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling

49.

COMPOSITION CONTAINING REFRIGERANT, USE OF SAID COMPOSITION, REFRIGERATOR HAVING SAID COMPOSITION, AND METHOD FOR OPERATING SAID REFRIGERATOR

      
Application Number 16772581
Status Pending
Filing Date 2018-10-17
First Publication Date 2020-12-10
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Itano, Mitsushi
  • Karube, Daisuke
  • Yotsumoto, Yuuki
  • Takahashi, Kazuhiro
  • Ohkubo, Shun

Abstract

An object is to provide a mixed refrigerant having three types of performance, i.e., a refrigerating capacity (also referred to as refrigeration capacity and cooling capacity) and a coefficient of performance that are equivalent to those of R410A, and a sufficiently low GWP. Provided as a means for a solution is a composition comprising a refrigerant, the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132(E)), trifluoroethylene (HFO-1123), and 2,3,3,3-tetrafluoro-1-propene (R1234yf), and R32.

IPC Classes  ?

  • C09K 5/04 - Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice-versa

50.

HEAT EXCHANGE UNIT

      
Application Number 16954718
Status Pending
Filing Date 2018-12-17
First Publication Date 2020-12-10
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Itano, Mitsushi
  • Karube, Daisuke
  • Yotsumoto, Yuuki
  • Takahashi, Kazuhiro
  • Takakuwa, Tatsuya
  • Komatsu, Yuzo
  • Ohkubo, Shun
  • Tsuda, Tetsushi
  • Toda, Yumi
  • Abe, Takeo

Abstract

A heat exchange unit is provided with which, even if a flammable refrigerant is used, the likelihood of the refrigerant reaching an electric component unit is reduced. An outdoor unit (20) constitutes a portion of an air-conditioning apparatus (1), and is connected to an indoor unit (30) via a liquid-side refrigerant connection pipe (6) and a gas-side refrigerant connection pipe (5). The outdoor unit (20) includes an outdoor housing (50), an outdoor heat exchanger (23) disposed inside the outdoor housing (50) and in which a refrigerant flows, a liquid-side shutoff valve (29) connected to the liquid-side refrigerant connection pipe (6), a gas-side shutoff valve (28) connected to the gas-side refrigerant connection pipe (5), and an outdoor electric component unit (8) disposed inside the outdoor housing (50). The refrigerant is a flammable refrigerant containing at least 1,2-difluoroethylene. When the outdoor unit (20) is in its installed state, the lower end of the outdoor electric component unit (8) is positioned above the liquid-side shutoff valve (29) and the gas-side shutoff valve (28).

IPC Classes  ?

  • F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plant or systems
  • F24F 1/14 - Heat exchangers specially adapted for separate outdoor units
  • F24F 1/24 - Cooling of electric components
  • F24F 1/32 - Refrigerant piping for connecting the separate outdoor unit to indoor units
  • F24F 1/34 - Protection means therefor, e.g. covers for refrigerant pipes
  • F24F 1/38 - Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
  • F25B 9/00 - Compression machines, plant, or systems, in which the refrigerant is air or other gas of low boiling point
  • C09K 5/04 - Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice-versa

51.

COMPOSITION COMPRISING REFRIGERANT, USE THEREOF, REFRIGERATING MACHINE HAVING SAME, AND METHOD FOR OPERATING SAID REFRIGERATING MACHINE

      
Application Number 16955669
Status Pending
Filing Date 2018-10-05
First Publication Date 2020-12-10
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Itano, Mitsushi
  • Karube, Daisuke
  • Yotsumoto, Yuuki
  • Takahashi, Kazuhiro
  • Ohkubo, Shun

Abstract

An object of the present invention is to provide a mixed refrigerant having three types of performance; i.e., a refrigerating capacity (also referred to as cooling capacity) and a coefficient of performance (COP) that are equivalent to those of R410A, and a sufficiently low GWP. Provided as a means for achieving the object is a composition comprising a refrigerant, the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132(E)), trifluoroethylene (HFO-1123), and 2,3,3,3-tetrafluoro-1-propene (R1234yf).

IPC Classes  ?

  • C09K 5/04 - Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice-versa
  • F25B 13/00 - Compression machines, plant, or systems, with reversible cycle

52.

ICEMAKING SYSTEM AND A METHOD OF CONTROLLING EVAPORATION TEMPERATURE REFERRED TO BY THE ICEMAKING SYSTEM

      
Application Number 16959621
Status Pending
Filing Date 2019-01-11
First Publication Date 2020-12-10
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Kondou, Azuma
  • Ueno, Takeo
  • Yasuda, Shouhei
  • Nakayama, Takahito
  • Sakae, Satoru

Abstract

An icemaking system includes: a refrigerant circuit that executes a vapor compression refrigeration cycle; a circulation circuit that circulates solution as a cooling target of the refrigerant circuit; and a control device that controls refrigerant evaporation temperature at the refrigerant circuit. The circulation circuit includes a solution flow path of: an ice generator; a solution tank that stores the solution; and a pump that pressure feeds the solution to the solution flow path. The refrigerant circuit includes: an evaporator of the ice generator; a compressor; a condenser; and an expansion valve. The control device includes a central processing unit (CPU) that adjusts to lower evaporation temperature at the evaporator as the solution has higher solute concentration.

IPC Classes  ?

  • F25C 1/147 - Producing ice by freezing water on cooled surfaces, e.g. to form slabs to form thin sheets which are removed by scraping or wedging, e.g. in the form of flakes from the inner walls of cooled bodies by using augers

53.

INSIDE AIR CONTROL APPARATUS AND CONTAINER REFRIGERATION APPARATUS INCLUDING THE SAME

      
Application Number 17002457
Status Pending
Filing Date 2020-08-25
First Publication Date 2020-12-10
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Fujimoto, Yuusuke
  • Kamei, Noritaka

Abstract

An inside air control apparatus includes: a gas supply device that performs a gas supply operation for supplying low oxygen concentration air into a container; and a controller that controls an operation of the gas supply device so that the inside air has desired composition. The controller is configured to be able to execute, if an oxygen concentration of the inside air is higher than a target oxygen concentration, a carbon dioxide concentration controlling operation for controlling composition of the inside air to be desired composition by causing the gas supply device to perform the gas supply operation, while allowing the gas supply device to change the amount of gas supply such that the carbon dioxide concentration of the inside air falls within a predetermined reference concentration range.

IPC Classes  ?

  • A23B 7/148 - Preserving or ripening with chemicals not covered by group or in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
  • A23L 3/3418 - Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
  • A23L 3/00 - Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
  • A01N 3/00 - Preservation of plants or parts thereof, e.g. inhibiting evaporation, improvement of the appearance of leaves; Grafting wax
  • F25D 11/00 - Self-contained movable devices associated with refrigerating machinery, e.g. domestic refrigerators

54.

OUTDOOR UNIT OF REFRIGERATION APPARATUS

      
Application Number 16608700
Status Pending
Filing Date 2018-06-08
First Publication Date 2020-12-10
Owner Daikin Industries, LTD. (Japan)
Inventor
  • Fujita, Hiroki
  • Tanaka, Yuuki
  • Hamanaka, Tooru

Abstract

The present disclosure suppresses a spread of a fire occurring outside an outdoor unit of a refrigeration apparatus to a board in an electric component box and suppresses reduction of a cooling function of a heat sink mounted to the board due to a measure against the fire spread to the board. If the fire or the like, for example, burns an inside of the outdoor unit (10) and the heat sink (51) is detached from a printed wiring board, a support piece (41g, 41h, 41i) that is a metal capture member receives the detached heat sink (51). The support piece (41g, 41h, 41i) is formed such that an area in a top view of a portion of the support piece (41g, 41h, 41i) positioned directly below the heat sink (51) is less than 10% of an area in the top view of the heat sink (51).

IPC Classes  ?

  • F24F 1/24 - Cooling of electric components
  • A62C 3/16 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways

55.

SCROLL COMPRESSOR

      
Application Number 16496996
Status Pending
Filing Date 2018-05-07
First Publication Date 2020-12-03
Owner Daikin Industries, LTD. (Japan)
Inventor
  • Murakami, Yasuhiro
  • Mizushima, Yasuo
  • Nakai, Ryouta

Abstract

Provided is an efficient scroll compressor capable of suppressing deformation of a fixed scroll during operation. The scroll compressor includes: a fixed scroll (30) including a fixed-side end plate (32) and a spiral fixed-side wrap (34) protruding from a front surface (32a) of the fixed-side end plate; a movable scroll (40) including a spiral movable-side wrap (44) combined with the fixed-side wrap to form a compression chamber (Sc); and a cover member (60) disposed in a high-pressure space on a rear surface (32b) side of the fixed-side end plate and attached to the fixed scroll. The fixed-side end plate includes a compression chamber adjacent portion (33) at which the front surface of the fixed-side end plate faces the compression chamber. The compression chamber adjacent portion includes a high-pressure adjacent portion (33a) disposed at a central portion of the compression chamber adjacent portion, and an intermediate- and low-pressure adjacent portion (33b). At the high-pressure adjacent portion, the front surface of the fixed-side end plate faces a high-pressure compression chamber. The intermediate- and low-pressure adjacent portion is disposed on the outer side of the high-pressure adjacent portion. The cover member defines a low- or intermediate-pressure rear surface adjacent space (S3) that faces at least a part of a rear surface of the intermediate- and low-pressure adjacent portion in the compression chamber adjacent portion of the fixed-side end plate.

IPC Classes  ?

  • F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents

56.

FAN UNIT, AND OUTDOOR UNIT OF AIR CONDITIONER COMPRISING FAN UNIT

      
Application Number 16997264
Status Pending
Filing Date 2020-08-19
First Publication Date 2020-12-03
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Tomioka, Hirotaka
  • Hirawa, Daiki

Abstract

A fan unit includes: a fan casing having a long side corresponding to either a width or a depth of the fan casing, a short side corresponding to the other of the width or the depth, and an upper surface on which a blow-out grille is mounted; a fan housed in the fan casing and that blows out air from the blow-out grille; and a bell mouth comprising a cylindrical portion surrounding the fan inside the fan casing. The cylindrical portion includes two first arc regions each facing the short side of the fan casing, a second arc region facing the long side of the fan casing, and a guide portion disposed in at least one of the first arc regions. The guide portion includes an extended end portion.

IPC Classes  ?

  • F24F 1/38 - Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
  • F24F 1/56 - Casing or covers of separate outdoor units, e.g. fan guards
  • F24F 13/20 - Casings or covers

57.

AIR BLOWING APPARATUS AND AIR CONDITIONER

      
Application Number 16999670
Status Pending
Filing Date 2020-08-21
First Publication Date 2020-12-03
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Imai, Yousuke
  • Kawahara, Keita
  • Okuno, Aya
  • Chouji, Masahiko

Abstract

An air-blowing apparatus includes a main body and a fan. In the main body a blow-out region is formed. The fan is provided in the main body and sends air toward the blow-out region. The air-blowing apparatus blows out air from the blow-out region such that a ratio (Vmax/Vmin) of a maximum value Vmax of wind velocity to a minimum value Vmin of the wind velocity is 1 or more and 10 or less in a target virtual plane. The target virtual plane is a virtual plane that faces the blow-out region. As a result, comfort of a person exposed to the wind sent from the air-blowing apparatus is improved.

IPC Classes  ?

  • F24F 1/0029 - Axial fans
  • F04D 25/16 - Combinations of two or more pumps
  • F04D 29/56 - Fluid-guiding means, e.g. diffusers adjustable
  • F04D 29/58 - Cooling; Heating; Diminishing heat transfer
  • F24F 11/74 - Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
  • F24F 13/08 - Air-flow control members, e.g. louvres, grilles, flaps or guide plates

58.

AIR CONDITIONER

      
Application Number 16476693
Status Pending
Filing Date 2018-01-25
First Publication Date 2020-12-03
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Shimizu, Katsutoshi
  • Yamamoto, Akiyoshi
  • Tsuji, Kenshi

Abstract

An air conditioner includes: a heat source unit including a compressor and a heat source-side heat exchanger; and a plurality of utilization units each including a decompressing device and a utilization-side heat exchanger. The utilization units are connected in parallel to the heat source unit to form a refrigerant circuit. The air conditioner performs a cooling operation using the heat source-side heat exchanger as a condenser and the utilization-side heat exchanger as an evaporator. The air conditioner further includes: a detection sensor that detects a state of air related to a required capacity of each of the utilization units; and a control apparatus that acquires the required capacity of each of the utilization units based on a detection result of the detection sensor.

IPC Classes  ?

  • F24F 11/46 - Improving electric energy efficiency or saving
  • F24F 11/64 - Electronic processing using pre-stored data
  • F24F 11/67 - Switching between heating and cooling modes
  • F24F 11/80 - Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
  • G05B 19/042 - Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors

59.

HEAT SOURCE UNIT FOR REFRIGERATION APPARATUS

      
Application Number 16497247
Status Pending
Filing Date 2018-03-05
First Publication Date 2020-12-03
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Nagashima, Toshihiro
  • Horiuchi, Naoto

Abstract

A chiller unit, which is a heat source unit, includes devices, such as a compressor and an electric component box in a machine chamber in a lower portion thereof, and a heat exchanger in an air passage in an upper portion thereof. A drain pan is disposed under the heat exchanger, and a drain gutter is disposed under the outflow port of the drain pan. The drain gutter includes a main drain port at its end portion where the depth of the drain gutter is deepest, and a secondary drain port at its end portion where the depth of the drain gutter is shallowest. The drain gutter has a guide portion, the end of which protrudes to the outside of the casing.

IPC Classes  ?

  • F24F 1/36 - Drip trays for outdoor units
  • F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plant or systems

60.

AIR CONDITIONING APPARATUS

      
Application Number 16954956
Status Pending
Filing Date 2018-12-11
First Publication Date 2020-12-03
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Itano, Mitsushi
  • Karube, Daisuke
  • Yotsumoto, Yuuki
  • Takahashi, Kazuhiro
  • Komatsu, Yuzo
  • Ohkubo, Shun
  • Takakuwa, Tatsuya
  • Tsuda, Tetsushi
  • Yanagi, Yuuichi

Abstract

An air conditioning apparatus 1 includes a compressor (321), an indoor heat exchanger (242) that is a use-side heat exchanger that exchanges heat with first air (F1), an outdoor heat exchanger (323) that is a heat-source-side heat exchanger that exchanges heat with second air, a refrigerant, a first duct (209), and a casing (230). The refrigerant contains at least 1,2-difluoroethylene, and circulates in the compressor (321), the indoor heat exchanger (242), and the outdoor heat exchanger (323) to repeat a refrigeration cycle. The first duct (209) supplies the first air (F1) to a plurality of rooms in an interior. The casing (230) includes a use-side space (SP2) that is connected to the first duct (209) and that accommodates the indoor heat exchanger (242). The casing (230) is configured to allow the first air (F1) after heat exchange with the refrigerant at the indoor heat exchanger (242) to be sent out to the first duct (209).

IPC Classes  ?

  • F25B 39/02 - Evaporators
  • C09K 5/04 - Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice-versa

61.

COMPOSITION CONTAINING REFRIGERANT, AND REFRIGERATION METHOD USING SAID COMPOSITION, OPERATING METHOD FOR REFRIGERATION DEVICE, AND REFRIGERATION DEVICE

      
Application Number 16993582
Status Pending
Filing Date 2020-08-14
First Publication Date 2020-12-03
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Ohkubo, Shun
  • Itano, Mitsushi
  • Yotsumoto, Yuuki
  • Mizuno, Akihito
  • Gotou, Tomoyuki
  • Yamada, Yasufu

Abstract

The present disclosure provides a composition comprising a refrigerant characterized by having a coefficient of performance (COP) and a refrigerating capacity equivalent to or higher than those of R404A, and having a sufficiently low GWP. Specifically, the present disclosure provides a composition comprising a refrigerant, the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132 (E)) and 2,3,3,3-tetrafluoropropene (HFO-1234yf), wherein HFO-1132 (E) is present in an amount of 35.0 to 65.0 mass %, and HFO-1234yf is present in an amount of 65.0 to 35.0 mass %, based on the total mass of HFO-1132 (E) and HFO-1234yf, and wherein the refrigerant is for use in operating a refrigeration cycle in which the evaporation temperature is −75 to −5° C.

IPC Classes  ?

  • C09K 5/04 - Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice-versa
  • B60H 1/32 - Cooling devices

62.

SURFACE TREATMENT AGENT

      
Application Number 16997405
Status Pending
Filing Date 2020-08-19
First Publication Date 2020-12-03
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Takahashi, Kanako
  • Hara, Ryousuke
  • Yamamoto, Ikuo

Abstract

A surface treatment agent containing: (A) a water repellent oil repellent polymer having a repeating unit derived from at least one water repellent oil repellent monomer selected from (A1) fluorine-containing monomers and (A2) non-fluorine monomers having a hydrocarbon group with 7-40 carbon atoms; (B) a silicone polymer represented by formula R533Si—O—[—Si(R51)2—O—]a—[—Si(R51)(R52)—O—]b—SiR533 (wherein each R51 group independently represents hydrogen, alkyl having 1-20 carbon atoms, aryl having 6-20 carbon atoms or alkoxy having 1-4 carbon atoms; each R52 independently represents a saturated hydrocarbon group having 23-40 carbon atoms; each R53 independently represents a hydrogen atom, an alkyl group having 1-20 carbon atoms, an aryl group having 6-20 carbon atoms, an alkoxy group having 1-4 carbon atoms or a saturated hydrocarbon group having 23-40 carbon atoms; a represents an integer of 0 or more; b represents an integer of 1 or more; and (a+b) is 10-200); and (C) a liquid medium.

IPC Classes  ?

  • C09K 3/18 - Materials not provided for elsewhere for application to surface to minimize adherence of ice, mist or water thereto; Thawing or antifreeze materials for application to surfaces
  • C08L 83/04 - Polysiloxanes
  • C08F 214/18 - Monomers containing fluorine
  • C08F 214/06 - Vinyl chloride
  • C08F 214/08 - Vinylidene chloride
  • C08F 214/16 - Monomers containing bromine or iodine
  • C08F 220/56 - Acrylamide; Methacrylamide
  • C08F 220/18 - Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
  • C08F 220/20 - Esters of polyhydric alcohols or phenols
  • C08F 220/28 - Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
  • C08F 220/34 - Esters containing nitrogen

63.

REFRIGERANT DISTRIBUTOR AND AIR CONDITIONER

      
Application Number 16965240
Status Pending
Filing Date 2019-01-31
First Publication Date 2020-11-26
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Yamada, Kouju
  • Jindou, Masanori
  • Satou, Ken
  • Matsuda, Hiroaki
  • Shiomi, Kohei
  • Yamayoshi, Tomoki

Abstract

A refrigerant distributor includes a first refrigerant pipe, a plurality of second refrigerant pipes, a body, a first plate, and a second plate. The body is made of aluminum or aluminum alloy. The body is configured to distribute a refrigerant from the first refrigerant pipe into the second refrigerant pipes or merge the refrigerant flowing from each of the second refrigerant pipes into the first refrigerant pipe. The body has a first surface connected to the first refrigerant pipe and a second surface connected to the second refrigerant pipes. The first plate is joined to the first surface, and has an outer surface exposed to atmosphere and provided with a first sacrificial anode layer for the body. The second plate is joined to the second surface, and has an outer surface exposed to atmosphere and provided with a second sacrificial anode layer for the body.

IPC Classes  ?

  • F25B 47/00 - Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
  • F25B 39/00 - Evaporators; Condensers

64.

AIR-CONDITIONING LIGHT-EMITTING SYSTEM

      
Application Number 16966303
Status Pending
Filing Date 2019-01-22
First Publication Date 2020-11-26
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Shiohama, Kousuke
  • Kojima, Nobuyuki
  • Toyofuku, Tatsuya
  • Murata, Masaaki

Abstract

An air-conditioning light-emitting system includes: air conditioners; light emitters; a first communication means that connects the air conditioners and that causes the air conditioners to communicate with each other; a plurality of second communication means that each connects one of the air conditioners to one of the light emitters and that causes the one of the air conditioners to communicate with the one of the light emitters; and a controller that controls the light emitters by using the first communication means and the second communication means.

IPC Classes  ?

  • F24F 11/88 - Electrical aspects, e.g. circuits
  • H05B 47/155 - Coordinated control of two or more light sources
  • H05B 47/19 - Controlling the light source by remote control via wireless transmission
  • F24F 1/02 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing

65.

ELECTROLYSIS SOLUTION, ELECTROCHEMICAL DEVICE, LITHIUM-ION SECONDARY BATTERY, AND MODULE

      
Application Number 16969795
Status Pending
Filing Date 2019-01-31
First Publication Date 2020-11-26
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Kinoshita, Masakazu
  • Yamada, Takaya
  • Yamazaki, Shigeaki
  • Suzuki, Yuuki
  • Hidaka, Tomoya
  • Takahashi, Kenzou
  • Shimooka, Toshiharu

Abstract

An electrolyte solution containing a compound (1) represented by the following formula (1): An electrolyte solution containing a compound (1) represented by the following formula (1): An electrolyte solution containing a compound (1) represented by the following formula (1): wherein R101s are the same as or different from each other and are each a C1-C6 hydrocarbon group optionally containing an unsaturated bond, and n101 is an integer of 2 to 5, and at least one compound (11) selected from the group consisting of an oxalic acid skeleton-containing lithium compound (a), a lithium phosphate compound (b), a sulfonic acid skeleton-containing compound (c), and a phosphate/phosphite compound (d). Also disclosed in an electrochemical device including the electrolyte solution, a lithium ion secondary battery containing the electrolyte solution and a module including the electrochemical device or lithium ion secondary battery.

IPC Classes  ?

  • H01M 10/0568 - Liquid materials characterised by the solutes
  • H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries

66.

AIR CONDITIONING SYSTEM, REMOTE CONTROLLER, AND METHOD FOR SAVING HISTORY OF OPERATION DATA ON AIR CONDITIONER

      
Application Number 16767062
Status Pending
Filing Date 2018-11-27
First Publication Date 2020-11-26
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Inoue, Ryouji
  • Ii, Toshio
  • Kobayashi, Yasuaki
  • Higuchi, Tatsuya
  • Kaneko, Masahiro
  • Yamamoto, Ryousuke
  • Katou, Youta

Abstract

An air conditioning system includes: an outdoor unit of an air conditioner; an indoor unit of the air conditioner; and a remote controller that operates and monitors at least one of the outdoor unit or the indoor unit. The remote controller includes: a storage and a processor coupled to the storage. The processor of the remote controller: acquires operation data from at least one of the outdoor unit or the indoor unit; stores the operation data in the storage by overwriting pre-stored operation data already in the storage when a predetermined capacity of the storage is exceeded; saves, during a past predetermined period when an abnormal condition occurs at the air conditioner and in the storage, a copy of the operation data; and displays the copy of the operation data or sends the copy of the operation data externally.

IPC Classes  ?

  • F24F 11/32 - Responding to malfunctions or emergencies
  • F24F 11/56 - Remote control
  • F24F 11/52 - Indication arrangements, e.g. displays
  • F24F 11/61 - Control or safety arrangements characterised by user interfaces or communication using timers
  • F24F 11/64 - Electronic processing using pre-stored data
  • F24F 11/65 - Electronic processing for selecting an operating mode
  • G05B 19/042 - Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors

67.

COMPOSITION COMPRISING REFRIGERANT, USE THEREOF, REFRIGERATING MACHINE HAVING SAME, AND METHOD FOR OPERATING SAID REFRIGERATING MACHINE

      
Application Number 16913628
Status Pending
Filing Date 2020-06-26
First Publication Date 2020-11-26
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Itano, Mitsushi
  • Karube, Daisuke
  • Yotsumoto, Yuuki
  • Takahashi, Kazuhiro
  • Ohkubo, Shun

Abstract

An object of the present invention is to provide a mixed refrigerant having three types of performance; i.e., a refrigerating capacity (also referred to as cooling capacity) and a coefficient of performance (COP) that are equivalent to those of R410A, and a sufficiently low GWP. Provided as a means for achieving the object is a composition comprising a refrigerant, the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132(E)), trifluoroethylene (HFO-1123), and 2,3,3,3-tetrafluoro-1-propene (R1234yf).

IPC Classes  ?

  • C09K 5/04 - Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice-versa

68.

FILM

      
Application Number 16762211
Status Pending
Filing Date 2018-10-29
First Publication Date 2020-11-19
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Tatemichi, Mayuko
  • Hazama, Takeshi
  • Komatsu, Nobuyuki
  • Higuchi, Tatsuya
  • Yokotani, Kouji
  • Higaki, Akio
  • Tanaka, Tomohiro

Abstract

A film having a dielectric dissipation factor at a frequency of 1 kHz and 160° C. of 0.02% or lower and a dielectric breakdown strength at 160° C. of 400 V/μm or higher. Also disclosed is a film including at least one fluoropolymer selected from a tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer and a tetrafluoroethylene/hexafluoropropylene copolymer, the fluoropolymer having a crystallinity of 65% or higher.

IPC Classes  ?

  • C08J 5/18 - Manufacture of films or sheets
  • H01G 4/33 - Thin- or thick-film capacitors
  • H01G 4/18 - Organic dielectrics of synthetic material, e.g. derivatives of cellulose

69.

ELECTRONIC DEVICE

      
Application Number 16945287
Status Pending
Filing Date 2020-07-31
First Publication Date 2020-11-19
Owner DAIKIN INDUSTRIES, LTD, (Japan)
Inventor
  • Mitsuhashi, Hisashi
  • Nomura, Takashi
  • Naitou, Masato
  • Watanabe, Yuusuke
  • Ozawa, Kaori
  • Takano, Shinya
  • Hupfield, Peter

Abstract

An electronic device comprising a surface-treating layer formed on at least a part of a surface thereof, the surface-treating layer being formed of a (poly)ether group-containing silane compound represented by any of the formulae (A1), (A2), (B1), (B2), (C1), or (C2). The symbols are as defined in the description.

IPC Classes  ?

  • C09D 183/02 - Polysilicates
  • C08G 65/336 - Polymers modified by chemical after-treatment with organic compounds containing silicon
  • C09D 5/00 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
  • C03C 17/30 - Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating with organic material with silicon-containing compounds
  • H04M 1/02 - Constructional features of telephone sets

70.

AIR CONDITIONING UNIT AND AIR CONDITIONING SYSTEM

      
Application Number 16957676
Status Pending
Filing Date 2018-12-21
First Publication Date 2020-11-19
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Yamamoto, Akiyoshi
  • Okuda, Noriyuki
  • Fukuoka, Motohiko
  • Kamada, Masashi
  • Fuchikami, Hiroshi
  • Tsuji, Kenshi

Abstract

An air conditioning unit that blows out temperature-controlled air to a front side indoors, includes: a fan; a rectangular casing in which the fan is disposed; and an air passage forming member that is disposed on an air-flow downstream side of the fan and that forms an air passage having a circular cross-sectional shape. The rectangular casing has a first side, a second side, a third side, and a fourth side when viewed from a front direction of the casing. The first side is parallel to the second side, and the third side is parallel to the fourth side. A smaller one of a first distance between the first side and the second side and a second distance between the third side and the fourth side is no greater than 2.5 times a diameter of a cross section of the air passage.

IPC Classes  ?

71.

HEAT EXCHANGER OR REFRIGERATION APPARATUS INCLUDING HEAT EXCHANGER

      
Application Number 16966558
Status Pending
Filing Date 2018-12-25
First Publication Date 2020-11-19
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Satou, Ken
  • Jindou, Masanori
  • Yamada, Kouju

Abstract

A heat exchanger includes: a heat exchanging part that includes flat tubes aligned vertically when the heat exchanger is installed; a first flow divider that includes a first pipe through which a refrigerant enters or exits from the first flow divider, second pipes that provide refrigerant flow paths between the heat exchanging part and the first pipe, and a main body that internally has a first space; and second flow dividers that each internally include one of second spaces that provide refrigerant flow paths between the heat exchanging part and the first flow divider. The first space communicates with a first end of the first pipe and a first end of each of the second pipes and causes the refrigerant to flow from the first pipe into the second pipes or from the second pipes into the first pipe.

IPC Classes  ?

  • F25B 39/02 - Evaporators
  • F25B 13/00 - Compression machines, plant, or systems, with reversible cycle

72.

ELECTROLYTIC SOLUTION, ELECTROCHEMICAL DEVICE, LITHIUM-ION SECONDARY CELL, AND MODULE

      
Application Number 16762574
Status Pending
Filing Date 2018-10-26
First Publication Date 2020-11-19
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Kuwajima, Yoshiko
  • Hayashi, Kotaro
  • Nakamura, Hisako
  • Yamada, Takaya
  • Suzuki, Yuuki
  • Yamazaki, Shigeaki
  • Yamauchi, Akiyoshi
  • Takahashi, Kenzou

Abstract

An electrolyte solution containing at least one selected from a compound represented by the following formula (1-1) (wherein Rf111s are the same as or different from each other and are each a C2-C4 fluorinated alkenyl group), a compound represented by the following formula (1-2) (wherein R121 is a C1-C4 alkyl group; and Rf121 is a C2-C4 fluorinated alkenyl group), and a compound represented by the following formula (1-3) (wherein Rf131 is a C1-C3 fluorinated alkyl group; and R131 is a C6-C12 aryl group): An electrolyte solution containing at least one selected from a compound represented by the following formula (1-1) (wherein Rf111s are the same as or different from each other and are each a C2-C4 fluorinated alkenyl group), a compound represented by the following formula (1-2) (wherein R121 is a C1-C4 alkyl group; and Rf121 is a C2-C4 fluorinated alkenyl group), and a compound represented by the following formula (1-3) (wherein Rf131 is a C1-C3 fluorinated alkyl group; and R131 is a C6-C12 aryl group):

IPC Classes  ?

  • H01M 10/0569 - Liquid materials characterised by the solvents
  • H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
  • C07C 69/36 - Oxalic acid esters
  • H01G 11/58 - Liquid electrolytes

73.

ETHYLENE/TETRAFLUOROETHYLENE COPOLYMER

      
Application Number 16762764
Status Pending
Filing Date 2018-11-08
First Publication Date 2020-11-19
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Yano, Ryouichi
  • Funaoka, Tatsuya
  • Kitahara, Takahiro
  • Sekiguchi, Takashi
  • Uchida, Kazunobu
  • Takano, Yuuko

Abstract

An ethylene/tetrafluoroethylene copolymer satisfying the following formula (1), wherein peak intensities, determined by Fourier transform infrared spectroscopy, of vibrations derived from a —CF2H group, a —CF2CH2COF group, a —COF group, a —COOH group, a dimer of a —CF2COOH group and a monomer of a CF2CH2COOH group, a —COOCH3 group, a —CONH2 group, and a —CH2OH group satisfy the following formula (2): An ethylene/tetrafluoroethylene copolymer satisfying the following formula (1), wherein peak intensities, determined by Fourier transform infrared spectroscopy, of vibrations derived from a —CF2H group, a —CF2CH2COF group, a —COF group, a —COOH group, a dimer of a —CF2COOH group and a monomer of a CF2CH2COOH group, a —COOCH3 group, a —CONH2 group, and a —CH2OH group satisfy the following formula (2): 75≤tan δ(60)/tan δ(5)×100≤225   (1) An ethylene/tetrafluoroethylene copolymer satisfying the following formula (1), wherein peak intensities, determined by Fourier transform infrared spectroscopy, of vibrations derived from a —CF2H group, a —CF2CH2COF group, a —COF group, a —COOH group, a dimer of a —CF2COOH group and a monomer of a CF2CH2COOH group, a —COOCH3 group, a —CONH2 group, and a —CH2OH group satisfy the following formula (2): 75≤tan δ(60)/tan δ(5)×100≤225   (1) PIA/(PIB+PIC+PID+PIE+PIF+PIG+PIH)≥0.60   (2) wherein tan δ(60), tan δ(5), PIA, PIB, PIC, PID, PIE, PIF, PIG and PIH are as defined in the specification. Also disclosed is a molded article obtained by molding the ethylene/tetrafluoroethylene copolymer and an electric wire including a core and a coat formed from the ethylene/tetrafluoroethylene copolymer.

IPC Classes  ?

  • C08F 214/26 - Tetrafluoroethene
  • C08J 5/18 - Manufacture of films or sheets
  • C08F 210/02 - Ethene
  • H01B 3/44 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes acrylic resins

74.

ARTICLE

      
Application Number 16768345
Status Pending
Filing Date 2018-12-04
First Publication Date 2020-11-19
Owner
  • DAIKIN AMERICA, INC. (USA)
  • DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Meserole, Chad Aaron
  • Sandoval, Abundio Jimenez

Abstract

An article including a metal substrate, a phosphate binding layer, and a fluoropolyether layer. Also disclosed is a process for producing the article which includes (i) treating a surface of the metal substrate with a phosphoric acid derivative to form the phosphate binding layer on the surface of the metal substrate, and (ii) treating a surface of the phosphate binding layer with a fluoropolyether compound having a fluoropolyether group and a carbon-carbon double bond to form the fluoropolyether layer on the surface of the phosphate binding layer.

IPC Classes  ?

  • C08G 18/62 - Polymers of compounds having carbon-to-carbon double bonds
  • C09D 5/00 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
  • C09D 175/04 - Polyurethanes
  • C08G 18/09 - Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture

75.

AIR-CONDITIONING UNIT

      
Application Number 16912112
Status Pending
Filing Date 2020-06-25
First Publication Date 2020-11-19
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Kumakura, Eiji
  • Yamada, Takuro
  • Yoshimi, Atsushi
  • Iwata, Ikuhiro
  • Itano, Mitsushi
  • Karube, Daisuke
  • Yotsumoto, Yuuki
  • Takahashi, Kazuhiro
  • Komatsu, Yuzo
  • Ohkubo, Shun
  • Takakuwa, Tatsuya

Abstract

An air-conditioning unit that is able to suppress ignition at an electric heater even when leakage of refrigerant occurs while a low-GWP refrigerant is used is provided. In an outdoor unit (20) including a casing (60), a compressor (21) provided inside the casing (60) and configured to compress refrigerant containing 1,2-difluoroethylene, and a drain pan heater (54) provided inside the casing (60), an electric power consumption of the drain pan heater (54) is lower than or equal to 300 W.

IPC Classes  ?

  • F25B 31/02 - Compressor arrangements of motor-compressor units
  • F25B 13/00 - Compression machines, plant, or systems, with reversible cycle
  • C09K 5/04 - Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice-versa

76.

AIR CONDITIONER

      
Application Number 16913454
Status Pending
Filing Date 2020-06-26
First Publication Date 2020-11-19
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Ohtsuka, Keisuke
  • Itano, Mitsushi
  • Karube, Daisuke
  • Yotsumoto, Yuuki
  • Takahashi, Kazuhiro
  • Kamatsu, Yuzo
  • Ohkubo, Shun
  • Takakuwa, Tatsuya
  • Tsuda, Tetsushi

Abstract

In an air conditioner that uses a refrigerant mixture containing at least 1,2-difluoroethylene, high efficiency is achieved. In the air conditioner (1), a compressor (100, 200) can be driven without interposing a power conversion device between an AC power source (90, 190) and a motor (70, 170). Thus, it is possible to provide the air conditioner (1) that is environmentally friendly and has a relatively inexpensive configuration.

IPC Classes  ?

  • F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plant or systems
  • C09K 5/04 - Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice-versa
  • F24F 11/88 - Electrical aspects, e.g. circuits

77.

REFRIGERATION CYCLE APPARATUS

      
Application Number 16913500
Status Pending
Filing Date 2020-06-26
First Publication Date 2020-11-19
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Itano, Mitsushi
  • Karube, Daisuke
  • Yotsumoto, Yuuki
  • Takahashi, Kazuhiro
  • Komatsu, Yuzo
  • Ohkubo, Shun
  • Takakuwa, Tatsuya
  • Tsuda, Tetsushi
  • Yanagi, Yuuichi

Abstract

A refrigeration cycle apparatus including a heat exchanger can decrease the material cost. An air conditioning apparatus (10) that is a refrigeration cycle apparatus includes a flammable refrigerant containing at least 1,2-difluoroethylene, an outdoor heat exchanger (23), and an indoor heat exchanger (27). One of the outdoor heat exchanger (23) and the indoor heat exchanger (27) is an evaporator that evaporates the refrigerant, and the other one is a condenser that condenses the refrigerant. The outdoor heat exchanger (23) and the indoor heat exchanger (27) each are a heat exchanger that includes metal plates (19) serving as a plurality of fins made of aluminum or an aluminum alloy, and flat tubes (16) serving as a plurality of heat transfer tubes made of aluminum or an aluminum alloy, and that causes the refrigerant flowing inside the flat tubes (16) and the air flowing along the metal plates (19) to exchange heat with each other. The refrigerant repeats a refrigeration cycle by circulating through the outdoor heat exchanger (23) and the indoor heat exchanger (27).

IPC Classes  ?

  • F25B 39/00 - Evaporators; Condensers
  • C09K 5/04 - Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice-versa

78.

AIR CONDITIONING APPARATUS

      
Application Number 16913506
Status Pending
Filing Date 2020-06-26
First Publication Date 2020-11-19
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Itano, Mitsushi
  • Karube, Daisuke
  • Yotsumoto, Yuuki
  • Takahashi, Kazuhiro
  • Komatsu, Yuzo
  • Ohkubo, Shun
  • Takakuwa, Tatsuya
  • Tsuda, Tetsushi
  • Yanagi, Yuuichi

Abstract

An air conditioning apparatus 1 includes a compressor (321), an indoor heat exchanger (242) that is a use-side heat exchanger that exchanges heat with first air (F1), an outdoor heat exchanger (323) that is a heat-source-side heat exchanger that exchanges heat with second air, a refrigerant, a first duct (209), and a casing (230). The refrigerant contains at least 1,2-difluoroethylene, and circulates in the compressor (321), the indoor heat exchanger (242), and the outdoor heat exchanger (323) to repeat a refrigeration cycle. The first duct (209) supplies the first air (F1) to a plurality of rooms in an interior. The casing (230) includes a use-side space (SP2) that is connected to the first duct (209) and that accommodates the indoor heat exchanger (242). The casing (230) is configured to allow the first air (F1) after heat exchange with the refrigerant at the indoor heat exchanger (242) to be sent out to the first duct (209).

IPC Classes  ?

  • F24F 11/30 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
  • F24F 1/0003 - Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
  • F24F 1/0007 - Indoor units, e.g. fan coil units
  • F24F 1/0068 - Indoor units, e.g. fan coil units characterised by the arrangement of refrigerant piping outside the heat exchanger within the unit casing
  • F24F 1/30 - Refrigerant piping for use inside the separate outdoor units
  • F24F 13/02 - Ducting arrangements
  • F24F 13/20 - Casings or covers
  • F25B 9/00 - Compression machines, plant, or systems, in which the refrigerant is air or other gas of low boiling point

79.

REFRIGERATION CYCLE APPARATUS

      
Application Number 16954702
Status Pending
Filing Date 2018-12-18
First Publication Date 2020-11-19
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Kumakura, Eiji
  • Yamada, Takuro
  • Yoshimi, Atsushi
  • Iwata, Ikuhiro
  • Itano, Mitsushi
  • Karube, Daisuke
  • Yotsumoto, Yuuki
  • Takahashi, Kazuhiro
  • Takakuwa, Tatsuya
  • Komatsu, Yuzo
  • Ohkubo, Shun

Abstract

A refrigeration cycle apparatus that is able to suppress a decrease in capacity when a refrigerant that contains at least 1,2-difluoroethylene is used is provided. In an air conditioner (1) including a refrigerant circuit (10) in which a compressor (21), an outdoor heat exchanger (23), an outdoor expansion valve (24), a liquid-side connection pipe (6), an indoor heat exchanger (31), and a gas-side connection pipe (5) are connected, a refrigerant containing at least 1,2-difluoroethylene is used, a pipe outer diameter of the liquid-side connection pipe (6) and a pipe outer diameter of the gas-side connection pipe (5) each are D0/8 inches (where, “D0-⅛ inches” is a pipe outer diameter of a connection pipe when refrigerant R32 is used), a range of the D0 of the liquid-side connection pipe (6) is “2≤D0≤4”, and a range of the D0 of the gas-side connection pipe (5) is “3≤D0≤8”.

IPC Classes  ?

  • C09K 5/04 - Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice-versa
  • F24F 1/0063 - Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
  • F24F 13/30 - Arrangement or mounting of heat-exchangers
  • F24H 4/02 - Liquid heaters
  • F25B 7/00 - Compression machines, plant, or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
  • F25B 39/00 - Evaporators; Condensers
  • F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plant or systems

80.

ELECTRIC WIRE WITH A CORE AND A COATING

      
Application Number 16985644
Status Pending
Filing Date 2020-08-05
First Publication Date 2020-11-19
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Yoshimoto, Hiroyuki
  • Yamanaka, Taku

Abstract

An electric wire comprising a core wire and a coating material formed from a composition which coating material coats the core wire.

IPC Classes  ?

  • C09D 151/00 - Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
  • H01B 7/02 - Disposition of insulation
  • C08L 27/18 - Homopolymers or copolymers of tetrafluoroethene
  • H01B 13/00 - Apparatus or processes specially adapted for manufacturing conductors or cables
  • H01B 3/44 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes acrylic resins
  • C08L 51/00 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
  • H01B 13/14 - Insulating conductors or cables by extrusion

81.

Air conditioner

      
Application Number 29685867
Grant Number D0902365
Status In Force
Filing Date 2019-04-01
First Publication Date 2020-11-17
Grant Date 2020-11-17
Owner DAIKIN INDUSTRIES LTD. (Japan)
Inventor Niki, Kentarou

82.

REFRIGERANT CYCLE APPARATUS

      
Application Number 16761983
Status Pending
Filing Date 2018-11-02
First Publication Date 2020-11-12
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor Tomiyama, You

Abstract

A refrigerant cycle apparatus is configured to suppress extension of defrost time. The refiigerant cycle apparatus includes: a refrigerant circuit including a compressor, a heat source heat exchanger having a main heat exchange unit, a sub heat exchange unit and a pressure loss portion disposed between the main heat exchange unit and the sub heat exchange unit, an expansion mechanism, a utilization heat exchanger, and a flow direction switching mechanism configured to switch a flow direction of a refrigerant; a first temperature sensor configured to measure first refrigerant temperature between the main heat exchange unit and the pressure loss portion; a second temperature sensor configured to measure second refrigerant temperature between the pressure loss portion and the expansion mechanism; and a controller configured to control the flow direction switching mechanism to switch between normal operation and defrost operation. The controller has control modes for the defrost operation, including a control mode of terminating the defrost operation based on the first refrigerant temperature and a control mode of terminating the defrost operation based on the second refrigerant temperature.

IPC Classes  ?

  • F25B 47/02 - Defrosting cycles
  • F25B 13/00 - Compression machines, plant, or systems, with reversible cycle
  • F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plant or systems

83.

OUTDOOR UNIT FOR AIR CONDITIONER

      
Application Number 16941923
Status Pending
Filing Date 2020-07-29
First Publication Date 2020-11-12
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Koike, Fumiaki
  • Hirawa, Daiki
  • Tanaka, Yuusuke
  • Tsujiuchi, Takashi
  • Kamitani, Shigeki
  • Horita, Takuya

Abstract

An outdoor unit for an air conditioner includes: a casing including a bottom plate that defines a bottom surface of the casing; a heat exchanger disposed in the casing; and an installation foot that supports the bottom plate from below. The installation foot includes: a support portion that supports from below an end portion of the bottom plate, a wall portion disposed on an outer side of the end portion of the bottom plate and that extends upward from the support portion, and a mount portion that extends from an upper end of the wall portion. The heat exchanger is mounted on the mount portion. The mount portion has a hole that extends through the mount portion in a height direction of the outdoor unit.

IPC Classes  ?

  • F24F 1/16 - Arrangement or mounting thereof
  • F24F 1/56 - Casing or covers of separate outdoor units, e.g. fan guards
  • F24F 13/30 - Arrangement or mounting of heat-exchangers

84.

FLUORO (POLY) ETHER GROUP-CONTAINING SILANE COMPOUND

      
Application Number 16944864
Status Pending
Filing Date 2020-07-31
First Publication Date 2020-11-12
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Mitsuhashi, Hisashi
  • Nomura, Takashi
  • Naitou, Masato
  • Takano, Shinya
  • Watanabe, Yuusuke
  • Ozawa, Kaori
  • Hupfield, Peter

Abstract

A fluoro(poly)ether group-containing silane compound represented by any of the formulae (A1), (A2), (B1), (B2), (C1), or (C2). In the formulae, PFPE is each independently at each occurrence a group represented by the formula: —(OC3F6)d—, wherein the repeating unit OC3F6 of the formula includes a branched structure, and d is an integer of 2 or more and 200 or less. The symbols are as defined in the description.

IPC Classes  ?

  • C08G 65/336 - Polymers modified by chemical after-treatment with organic compounds containing silicon
  • C09D 5/16 - Anti-fouling paints; Underwater paints
  • C09D 171/02 - Polyalkylene oxides
  • C09D 183/12 - Block or graft copolymers containing polysiloxane sequences containing polyether sequences
  • C08G 77/46 - Block- or graft-polymers containing polysiloxane sequences containing polyether sequences
  • C08G 65/00 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
  • C08L 83/12 - Block- or graft-copolymers containing polysiloxane sequences containing polyether sequences
  • C08G 77/24 - Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen halogen-containing groups
  • C09K 3/18 - Materials not provided for elsewhere for application to surface to minimize adherence of ice, mist or water thereto; Thawing or antifreeze materials for application to surfaces

85.

HEAT EXCHANGER AND AIR CONDITIONER

      
Application Number 16963015
Status Pending
Filing Date 2018-12-25
First Publication Date 2020-11-12
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Inoue, Satoshi
  • Hirokawa, Tomoki
  • Yoshioka, Shun
  • Matsumoto, Yoshiyuki
  • Agou, Shouta

Abstract

A heat exchanger exchanges heat between refrigerant flowing inside and air flowing outside. The heat exchanger includes: an upstream-side flat tube; downstream-side flat tubes on a downstream side of the upstream-side flat tube in a direction of air flow; and a space formation member that defines a distribution space in which the refrigerant coming out of the upstream-side flat tube is distributed to the downstream-side flat tubes.

IPC Classes  ?

  • F25B 39/02 - Evaporators
  • F28D 1/053 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or mo with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
  • F28F 9/02 - Header boxes; End plates

86.

Air conditioner

      
Application Number 29685873
Grant Number D0901658
Status In Force
Filing Date 2019-04-01
First Publication Date 2020-11-10
Grant Date 2020-11-10
Owner DAIKIN INDUSTRIES LTD. (Japan)
Inventor Niki, Kentarou

87.

Air conditioner

      
Application Number 29685872
Grant Number D0901657
Status In Force
Filing Date 2019-04-01
First Publication Date 2020-11-10
Grant Date 2020-11-10
Owner DAIKIN INDUSTRIES LTD. (Japan)
Inventor Niki, Kentarou

88.

SUPER-LIQUID-REPELLENT COATING FILM AND CURABLE COMPOSITION FOR FORMING SUPER-LIQUID-REPELLENT COATING FILM

      
Application Number 16092228
Status Pending
Filing Date 2017-04-13
First Publication Date 2020-11-05
Owner Daikin Industries, Ltd. (Japan)
Inventor
  • Yamaguchi, Hiroki
  • Hanabusa, Kakeru
  • Mohara, Kensuke
  • Morita, Masamichi

Abstract

The present invention addresses the problem of providing a super-liquid-repellent coating film that has improved abrasion resistance. Provided as a means for solving the problem is a coating film that has a fluorine atom content of 1 to 60 wt %, the coating film having a surface that has an average surface roughness Ra of 0.5 to 20, a surface area ratio of 1.7 to 5, a contact angle with water of 150° or more, a contact angle with n-hexadecane of 80° or more, and a surface that has a contact angle with water of 150° or more after being rubbed 100 times with a PET film under a load of 100 g.

IPC Classes  ?

  • C09D 133/16 - Homopolymers or copolymers of esters containing halogen atoms
  • C09D 7/62 - Additives non-macromolecular inorganic modified by treatment with other compounds
  • C09D 5/16 - Anti-fouling paints; Underwater paints
  • C09D 7/20 - Diluents or solvents

89.

ELECTRIC MOTOR AND TURBO-COMPRESSOR

      
Application Number 16760691
Status Pending
Filing Date 2018-10-25
First Publication Date 2020-11-05
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Ono, Takaaki
  • Irino, Yusuke
  • Tonari, Tatsuya
  • Nakazawa, Yuji
  • Aota, Keiji
  • Sakawaki, Atsushi

Abstract

The stator includes a stator core, a support electric wire formed by one or more conductive wires, and a drive electric wire formed by one or more conductive wires. The stator core includes an annular shaped back yoke and a plurality of teeth on an inner periphery of the back yoke. The support electric wire is disposed so as to pass through a plurality of slots respectively formed between the teeth, and forms a winding portion that generates an electromagnetic force for supporting the rotor in a non-contact manner by being energized. The drive electric wire is disposed so as to pass through the plurality of slots, and forms a winding portion that generates an electromagnetic force for rotating the rotor by being energized. A cross-sectional area per conductive wire of the support electric wire differs from a cross-sectional area per conductive wire of the drive electric wire.

IPC Classes  ?

  • H02K 7/09 - Structural association with bearings with magnetic bearings
  • H02K 3/12 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
  • H02K 3/28 - Layout of windings or of connections between windings
  • F16C 32/04 - Bearings not otherwise provided for using magnetic or electric supporting means
  • F02B 39/10 - Non-mechanical drives, e.g. fluid drives having variable gear ratio electric

90.

REFRIGERATING OIL FOR REFRIGERANT OR REFRIGERANT COMPOSITION, METHOD FOR USING REFRIGERATING OIL, AND USE OF REFRIGERATING OIL

      
Application Number 16911816
Status Pending
Filing Date 2020-06-25
First Publication Date 2020-11-05
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Itano, Mitsushi
  • Karube, Daisuke
  • Yotsumoto, Yuuki
  • Takahashi, Kazuhiro
  • Komatsu, Yuzo
  • Ohkubo, Shun
  • Takakuwa, Tatsuya
  • Tsuda, Tetsushi
  • Abe, Takeo
  • Toda, Yumi

Abstract

There are provided a refrigerating oil for refrigerant compositions in which good lubricity can be achieved when a refrigeration cycle is performed using a refrigerant having a sufficiently low GWP, a method for using the refrigerating oil, and use of the refrigerating oil. The refrigerating oil for a refrigerant composition contains a refrigerant containing trans-1,2-difluoroethylene (HFO-1132(E)), trifluoroethylene (HFO-1123), and 2,3,3,3-tetrafluoro-1-propene (R1234yf).

IPC Classes  ?

  • C09K 5/04 - Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice-versa

91.

SCROLL COMPRESSOR

      
Application Number 16931147
Status Pending
Filing Date 2020-07-16
First Publication Date 2020-11-05
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor Takahashi, Nobuo

Abstract

A scroll compressor includes an orbiting scroll and a fixed scroll. The orbiting scroll has a disk-shaped orbiting end plate and a spiral wall-shaped orbiting lap protruding from a front surface of the orbiting end plate. The fixed scroll has a spiral wall-shaped fixed lap meshing with the orbiting lap. The orbiting end plate is provided with a rear concave portion that opens in a rear surface of the orbiting end plate and extends along a winding finish portion of the orbiting lap.

IPC Classes  ?

  • F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents

92.

ICE MAKING SYSTEM

      
Application Number 16962052
Status Pending
Filing Date 2018-12-14
First Publication Date 2020-11-05
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Kita, Kouichi
  • Kondou, Azuma
  • Yasuda, Shouhei
  • Nakatsuka, Keisuke
  • Nomura, Kazuyoshi
  • Ueno, Takeo

Abstract

An ice making system includes: a refrigerant circuit that performs a vapor compression refrigeration cycle and that includes a compressor, a condenser that condenses refrigerant discharged from the compressor, a first expansion valve with an adjustable opening degree that decompresses the refrigerant from the condenser, a flooded evaporator that evaporates the refrigerant decompressed by the first expansion valve, and a superheater that imparts a degree of superheating to the refrigerant discharged from the flooded evaporator; a circulation circuit that circulates a medium that is cooled by the flooded evaporator; and a control device that controls the adjustable opening degree of the first expansion valve such that the superheater imparts to the refrigerant discharged from the flooded evaporator a degree of superheating at which dryness of the refrigerant is kept within a predetermined range of less than 1.

IPC Classes  ?

  • F25B 41/06 - Flow restrictors, e.g. capillary tubes; Disposition thereof
  • F25B 39/00 - Evaporators; Condensers
  • F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plant or systems

93.

POWER CONVERSION DEVICE

      
Application Number 16760741
Status Pending
Filing Date 2018-10-30
First Publication Date 2020-10-29
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Zhou, Yueqiang
  • Kawashima, Reiji

Abstract

A power conversion device includes a power conversion unit that converts power into AC power having a predetermined frequency and voltage through a switching operation of a plurality of switching elements, a DC unit including a capacitor and a reactor, and a controller that controls the switching operation. The capacitor smooths a ripple caused by the switching operation in the power conversion unit. The controller monitors an indicator value correlated with a disturbance that distorts an input current supplied to the power conversion unit, and compensates a manipulated variable of control of the switching operation in the power conversion unit in accordance with at least a frequency component closest to a resonant frequency of the DC unit among a plurality of frequency components. The frequency components are included in variations in the indicator value and correspond to integral multiples of a power source frequency of an AC power source.

IPC Classes  ?

  • H02M 7/48 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode

94.

AIR-CONDITIONING APPARATUS

      
Application Number 16925769
Status Pending
Filing Date 2020-07-10
First Publication Date 2020-10-29
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Ebina, Hiroshi
  • Hasegawa, Takashi
  • Nakayama, Toshimichi

Abstract

An air conditioner switches between a normal refrigeration cycle and a defrosting refrigeration cycle, and includes: a refrigerant circuit that connects a first heat exchanger, a second heat exchanger, a radiation panel, and an expansion valve that regulates a flow rate of a refrigerant flowing through the radiation panel; and a controller that causes the air conditioner to switch between the normal refrigeration cycle and the defrosting cycle. During the normal refrigeration cycle, the radiation panel performs cooling or heating. During the defrosting cycle, the first heat exchanger serves as a radiator and the second heat exchanger serves as an evaporator. During the defrosting cycle, the controller causes the expansion valve to be in a fully closed state.

IPC Classes  ?

  • F24F 11/41 - Defrosting; Preventing freezing
  • F24F 1/0059 - Indoor units, e.g. fan coil units characterised by heat exchangers
  • F24F 3/06 - Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
  • F24F 5/00 - Air-conditioning systems or apparatus not covered by group or
  • F24F 11/65 - Electronic processing for selecting an operating mode
  • F24F 11/89 - Arrangement or mounting of control or safety devices
  • F24F 13/30 - Arrangement or mounting of heat-exchangers

95.

REFRIGERATING OIL FOR REFRIGERANT OR REFRIGERANT COMPOSITION, METHOD FOR USING REFRIGERATING OIL, AND USE OF REFRIGERATING OIL

      
Application Number 16954651
Status Pending
Filing Date 2018-11-13
First Publication Date 2020-10-29
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Itano, Mitsushi
  • Karube, Daisuke
  • Yotsumoto, Yuuki
  • Takahashi, Kazuhiro
  • Komatsu, Yuzo
  • Ohkubo, Shun
  • Takakuwa, Tatsuya
  • Tsuda, Tetsushi
  • Abe, Takeo
  • Toda, Yumi

Abstract

There are provided a refrigerating oil for refrigerant compositions in which good lubricity can be achieved when a refrigeration cycle is performed using a refrigerant having a sufficiently low GWP, a method for using the refrigerating oil, and use of the refrigerating oil. The refrigerating oil for a refrigerant composition contains a refrigerant containing trans-1,2-difluoroethylene (HFO-1132(E)), trifluoroethylene (HFO-1123), and 2,3,3,3-tetrafluoro-1-propene (R1234yf).

IPC Classes  ?

  • C09K 5/04 - Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice-versa

96.

REFRIGERATION SYSTEM

      
Application Number 16757871
Status Pending
Filing Date 2018-09-28
First Publication Date 2020-10-29
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor Satou, Kiichirou

Abstract

A refrigeration system including a storage in which multiple containers are joined and each include a refrigeration apparatus includes a first communication unit, a second communication unit, and a third communication unit that perform communication so that the refrigeration apparatuses of the containers operate in synchronization with each other.

IPC Classes  ?

  • F25B 47/02 - Defrosting cycles
  • F25D 21/06 - Removing frost
  • F25D 13/02 - Stationary devices associated with refrigerating machinery, e.g. cold rooms with several cooling compartments, e.g. refrigerated locker systems

97.

REFRIGERATION CYCLE APPARATUS

      
Application Number 16955207
Status Pending
Filing Date 2018-12-18
First Publication Date 2020-10-29
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Itano, Mitsushi
  • Karube, Daisuke
  • Yotsumoto, Yuuki
  • Takahashi, Kazuhiro
  • Komatsu, Yuzo
  • Ohkubo, Shun
  • Takakuwa, Tatsuya
  • Tsuda, Tetsushi
  • Yanagi, Yuuichi

Abstract

A refrigeration cycle apparatus including a heat exchanger can decrease the material cost. An air conditioning apparatus (10) that is a refrigeration cycle apparatus includes a flammable refrigerant containing at least 1,2-difluoroethylene, an outdoor heat exchanger (23), and an indoor heat exchanger (27). One of the outdoor heat exchanger (23) and the indoor heat exchanger (27) is an evaporator that evaporates the refrigerant, and the other one is a condenser that condenses the refrigerant. The outdoor heat exchanger (23) and the indoor heat exchanger (27) each are a heat exchanger that includes metal plates (19) serving as a plurality of fins made of aluminum or an aluminum alloy, and flat tubes (16) serving as a plurality of heat transfer tubes made of aluminum or an aluminum alloy, and that causes the refrigerant flowing inside the flat tubes (16) and the air flowing along the metal plates (19) to exchange heat with each other. The refrigerant repeats a refrigeration cycle by circulating through the outdoor heat exchanger (23) and the indoor heat exchanger (27).

IPC Classes  ?

  • F25B 13/00 - Compression machines, plant, or systems, with reversible cycle
  • C09K 5/04 - Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice-versa

98.

CROSSLINKABLE ELASTOMER COMPOSITION AND FLUORORUBBER MOLDED ARTICLE

      
Application Number 16755632
Status Pending
Filing Date 2018-10-17
First Publication Date 2020-10-22
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Hirano, Seiichi
  • Noguchi, Tsuyoshi

Abstract

A crosslinkable elastomer composition including a crosslinkable elastomer and a surface-oxidized non-oxide ceramic. Also disclosed is a fluoroelastomer molded article having a weight reduction percentage of 2.5% by mass or less and an amount of particles generated of 0.05% by mass or less after O2 plasma irradiation, a weight reduction percentage of 1.8% by mass or less, an amount of particles generated of 0.05% by mass or less after NF3 plasma irradiation, and a compression set of 50% or less after aging at 300° C. for 70 hours.

IPC Classes  ?

99.

MANAGEMENT SYSTEM FOR BULDING EQUIPMENT

      
Application Number 16759229
Status Pending
Filing Date 2018-10-31
First Publication Date 2020-10-22
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor Nakahara, Takayuki

Abstract

A management system for building equipment includes several units. An instruction transmission unit transmits an instruction to at least one device. A response reception unit receives a response indicating that a state transition is made by the device in accordance with the instruction. A detection unit detects an abnormal condition in which the response is not received by the reception unit within a reference time period after transmission of the instruction. A storage unit stores the reference time period. A time measurement unit measures a length of time from when the instruction is transmitted to when the response is received. A mode setting unit sets an operating mode of the management system to a reference-time-period calculation mode. A calculation unit performs calculations to determine the reference time period based on a measurement result obtained by the measurement unit, and prompts the storage unit to store the determined reference time period.

IPC Classes  ?

  • F24F 11/70 - Control systems characterised by their outputs; Constructional details thereof
  • F24F 5/00 - Air-conditioning systems or apparatus not covered by group or
  • F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plant or systems
  • G08B 29/26 - Self-calibration, e.g. compensating for environmental drift or ageing of components by updating and storing reference thresholds
  • H04Q 9/00 - Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

100.

REFRIGERATION CYCLE APPARATUS

      
Application Number 16913358
Status Pending
Filing Date 2020-07-13
First Publication Date 2020-10-22
Owner DAIKIN INDUSTRIES, LTD. (Japan)
Inventor
  • Itano, Mitsushi
  • Karube, Daisuke
  • Yotsumoto, Yuuki
  • Takahashi, Kazuhiro
  • Komatsu, Yuzo
  • Ohkubo, Shun
  • Takakuwa, Tatsuya
  • Tsuda, Tetsushi
  • Abe, Takeo
  • Toda, Yumi

Abstract

There is provided a refrigeration cycle apparatus in which good lubricity can be achieved when a refrigeration cycle is performed using a refrigerant having a sufficiently low GWP. The refrigeration cycle apparatus contains a refrigerating oil and a refrigerant composition containing a refrigerant containing trans-1,2-difluoroethylene (HFO-1132(E)), trifluoroethylene (HFO-1123), and 2,3,3,3-tetrafluoro-1-propene (R1234yf).

IPC Classes  ?

  • C09K 5/04 - Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice-versa
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