A shut-off valve control device for a refrigeration cycle includes: a leakage detection unit configured to detect leakage of a refrigerant in a refrigeration cycle including an indoor unit and an outdoor unit; a shut-off valve which is disposed in a pipe that connects the indoor unit with the outdoor unit and which can be opened and closed by supplying electric power; a power failure detection unit configured to detect a power failure; a backup power supply configured to be capable of alternatively supplying power; and a shut-off valve control circuit configured to control the shut-off valve to be closed when the leakage detection unit detects leakage of the refrigerant. The shut-off valve control circuit causes the backup power supply to be started when the power failure detection unit detects a power failure and closes the shut-off valve when the detected power failure exceeds a certain time period.
F24F 11/36 - Responding to malfunctions or emergencies to leakage of heat-exchange fluid
F24F 11/84 - Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
An air conditioning system of the embodiment includes a first indoor unit and a second indoor unit. The first indoor unit controls a temperature of the inside of a space by controlling blowing of warm air from an upper part of the space to the inside of the space. The second indoor unit controls blowing of warm air from under a floor of the space to the inside of the space on the basis of a temperature in a lower part of the space.
A communication system includes a master unit; and a plurality of slave units including a slave unit to which a termination resistance is set, the plurality of slave units connected to the master unit via a communication line. In the communication system, the master unit includes a master communication control unit that normally sets a communication rate of communication performed with the plurality of slave units to a high baud rate, switches the high baud rate to a low baud rate after detecting that communication with the slave unit to which the termination resistance is set is disabled, transmits an instruction for switching the low baud rate to the high baud rate to the plurality of slave units after detecting that the communication with the slave unit to which the termination resistance is set is restored, and switches setting of the master unit itself to the high baud rate.
According to one embodiment, the air conditioner comprises an outdoor unit, an indoor unit, a refrigerant cutoff unit, an airtight state detection unit, a notification unit, and a control unit. The control unit determines a refrigerant cutoff condition for whether or not to urge a flow of the refrigerant flowing into and from the indoor unit to be cut off and, if the refrigerant cutoff condition is satisfied, urges the refrigerant cutoff unit to cut off the flow, and urges the notification unit to notify a detection result of an airtight state of a pipe detected by the airtight state detection unit, in the indoor unit in which the flow of the refrigerant is cut off.
F24F 11/84 - Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
According to one embodiment, a refrigeration cycle apparatus includes a main flow channel of a refrigerant, a compressor, a condenser, an evaporator, a branch channel, an expansion valve, a supercooling heat exchanger, an injection flow channel, and a control unit. The control unit determines, based on whether the determination condition is satisfied or not, a determination condition for adjusting an opening degree of the expansion valve and adjusts the opening degree of the expansion valve according to a first target value for a discharge temperature of the refrigerant from the compressor, or a second target value for a superheat degree of the refrigerant flowing through the injection flow channel.
According to one embodiment, an information management system that autonomously controls a manufacturing process and equipment by diversifying a feedback loop in a CPS is provided. The embodiment is applied to an information management system that autonomously controls a manufacturing process and a service. A loop connection section connects a feedback loop of the cyber-physical system. An information acquisition section acquires specific information necessary for the manufacturing process and the service from the feedback loop. An information analytics section analyzes the specific information. An autonomous operation control section autonomously performs the operation control based on an analytics result from the information analytics section.
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control (DNC), flexible manufacturing systems (FMS), integrated manufacturing systems (IMS), computer integrated manufacturing (CIM)
To achieve both improving operability of stop valves and downsizing an outdoor unit, the outdoor unit for an air-conditioner includes a valve fixing frame provided on the base frame, and a plurality of stop valves fixed to the valve fixing frame. A beam of the valve fixing frame includes a first notch opened upward, in which a first stop valve is disposed therein, and a second notch opened downward, in which a second stop valve is disposed therein. The first stop valve and the second stop valve are different in installation height in a vertical direction with reference to the installation surface.
An air conditioner that has a controller and is such that an outdoor unit, which is provided with a compressor, an outdoor heat exchanger, an accumulator, and a supercooling heat exchanger, and indoor units provided with indoor heat exchangers, are connected to each other by connecting piping to constitute a refrigerant circuit. The bottom of the accumulator is connected to an intake side of the compressor via return bypass piping that is provided with an electromagnetic valve. The cooling source for the supercooling heat exchanger is a supercooling bypass circuit provided with a supercooling expansion valve; and when the amount of refrigerant during heating operation is determined to be excessive, the controller performs a control so as to fully close the electromagnetic valve of the return bypass piping and to gradually increase the opening degree of the supercooling expansion valve of the supercooling bypass circuit from a fully closed state.
F24F 11/84 - Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
F24F 1/0059 - Indoor units, e.g. fan coil units characterised by heat exchangers
An outdoor unit of an air conditioner includes: an electrical component box formed into a box shape; a waterproof cover that covers the electrical component box; and a refrigerant cooling heat sink that comes into contact with a back surface of the electrical component box. The refrigerant cooling heat sink is attached to an inner surface of the waterproof cover, and a relative position of the electrical component box with respect to the refrigerant cooling heat sink is set by the electrical component box being attached to a predetermined position of the waterproof cover.
According to one embodiment, an air conditioner with two or more outdoor units and one or more indoor units, which are connected to a single refrigerant pipe in parallel, the air conditioner comprising a controller configured to determine, based on driving performance of the two or more outdoor units, a driving priority order of the two or more outdoor units. The controller switches the driving priority order of the two or more outdoor units between a descending order of the driving performance of the outdoor units and an ascending order of the driving performance of the outdoor units at certain intervals.
F24F 11/32 - Responding to malfunctions or emergencies
F24F 11/86 - Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
According to one embodiment, an air conditioner includes an outdoor unit including a control unit which controls an operation of a compressor, an expansion valve kit, at least one air-handling unit, and a controller. The control unit or the controller adjusts, when a parameter value indicating a change in temperature of air blown out of an indoor fan or a parameter value indicating a change in temperature of air sucked by the indoor fan is not within a range defined by a first threshold and a second threshold smaller than the first threshold, each of an opening degree of an indoor expansion valve and a change period of the opening degree or each of an operation frequency of the compressor and a change period of the operation frequency.
According to one embodiment, an air conditioner includes an indoor unit, an outdoor unit, and a controller. The controller includes a first defrost module and a second defrost module. The first defrost module is configured to defrost a first outdoor heat exchanger and a second outdoor heat exchanger at the same time. The second defrost module is configured to start defrosting of the second outdoor heat exchanger in advance, and to perform defrosting of the first outdoor heat exchanger after the start of defrosting of the second outdoor heat exchanger.
According to one embodiment, in a low speed drive of outdoor fans, a first flow rate adjusting valve in a main outdoor heat exchanger side is narrowed to a closing degree or a close range thereof, and an opening degree of a second flow rate adjusting valve is controlled such that a supercooling degree of refrigerant in auxiliary outdoor heat exchangers becomes constantly a target value.
F24F 11/84 - Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
A refrigeration cycle device of the embodiment includes an indoor unit, a first outdoor unit and a second outdoor unit, and a control unit. The second outdoor unit includes a four-way valve. The four-way valve includes a main valve having a main valve body and a sub-valve having a sub-valve body. The main valve body is movable between a first position and a second position. The sub-valve body is driven by a solenoid and is movable between a third position and a fourth position. In case in which the first outdoor unit is operated and the second outdoor unit is stopped, when the main valve body is not at the first position, the control unit disposes the sub-valve body at the fourth position and then moves the sub-valve body to the third position.
According to one embodiment, a motor drive apparatus is an apparatus which drives a motor including a plurality of phase windings in a mutually unconnected state, and includes first and second inverters. The first and second inverters are first and second modules each of which is configured in such a manner that a switching circuit including a positive side terminal and negative side terminals and a drive circuit intended to drive the switching circuit are accommodated in one package, and which possess configurations identical to each other, and the first and second modules are arranged on a circuit board in a state where the negative side terminals of the modules are respectively close to each other.
H02P 25/22 - Multiple windings; Windings for more than three phases
H02P 27/06 - 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
According to one embodiment, this outdoor unit of an air conditioner includes a compressor, a heat exchanger, an expansion valve, a blower fan, electrical components, and a heat sink. The heat exchanger includes a first group constituted of at least one of the plurality of heat exchangers and a second group constituted of at least one of the plurality of heat exchangers not belonging to the first group. The expansion valve includes a first expansion valve and a second expansion valve. The heat sink is arranged on the flow path of the refrigerant on the upstream side of a confluence position of the refrigerant branches condensed by the heat exchangers of the first group and the second group and on the downstream side of the second expansion valve.
A primary-side inverter is connected to three output terminals of six output terminals included in a motor with an open winding structure including windings of three independent phases and a secondary-side inverter is connected to the remaining three output terminals. Direct current power is supplied to the inverters, and a control device performs PWM control on the inverters by using a switching pattern in which the numbers of phases where each is turned on are equal, and in the switching pattern, ON of only an upper is continued in one phase from among the three phase outputs, OFF of only a lower is continued in another phase, and the upper and lower are alternately turned on and off such that mutual phases are opposite in the remaining one phase in one cycle of an electric angle of the motor over a plural carrier cycles in PWM control.
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
According to one embodiment, a motor drive apparatus includes a first inverter, a second inverter, and a controller. This controller rotationally moves, at the time of startup of a motor, a rotor of the motor to an initial position by DC excitation of supplying DC exciting currents from the first and second inverters to the phase windings of the motor and, after this rotational movement, PWM-controls switching of the first and second inverters in such a manner that a rotational speed of the rotor becomes a target rotational speed. Then, the controller carries out the DC excitation fey which a zero-axis current in each of the phase windings becomes approximately zero.
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 7/5395 - 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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency by pulse-width modulation
H02P 7/06 - Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
22.
GENERATION DEVICE, GENERATION SYSTEM, PROCESSING SYSTEM, GENERATION METHOD, AND STORAGE MEDIUM
According to one embodiment, a generation device acquires a plurality of images of a temperature distribution of a conveyance object. The images are generated by a thermal camera. The generation device sets a plurality of measurement areas in each of the images along a conveyance direction of the conveyance object. The generation device generates time-series data of temperature change over time for each of the plurality of measurement areas. The generation device generates a temperature profile of temperature change over time of the conveyance object by using a portion of temperatures extracted from the time-series data of the plurality of measurement areas.
A motor control device of an embodiment includes a power supply unit that supplies AC power to a motor; a current detection unit that detects a current flowing through a winding of the motor; a speed and electric angle estimation unit that estimates a rotation speed and an electric angle of the motor based on a voltage outputted by the power supply unit and the current; a coordinate conversion unit that obtains an excitation current and a torque current based on the current and the electric angle; a torque current command determination unit that substitutes a predicted torque calculated based on a mechanical motion equation into a torque component current command value calculated based on a torque expression of a vector control coordinate, to generate a torque component current command value for bringing a difference between an inputted speed command and an estimated speed closer to zero; and a model prediction control unit that applies, to a plurality of predicted currents including a current change ratio determined depending on each of a plurality of switching patterns based on a space voltage vector that are able to be outputted by the power supply unit, an evaluation function to evaluate a size of a difference from a predicted current corresponding to each of the torque component current command value and an excitation component current command value inputted from outside, and that selects and outputs a switching pattern.
According to one embodiment, a motor drive unit includes a motor including a plurality of phase windings in a mutually unconnected state, a first inverter which controls application of electric power to one ends of the phase windings, a second inverter which controls application of electric power to the other ends of the phase windings, relays each of which includes a make break contact connected between the other ends of the phase windings, and a controller which switches, according to a value of a current flowing through the motor, between an open-windings mode and a star-connection mode.
H02P 25/18 - Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays
F25D 21/00 - Defrosting; Preventing frosting; Removing condensed or defrost water
H02P 27/06 - 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
According to one embodiment, a refrigeration cycle apparatus includes a motor which including a plurality of phase windings in a mutually unconnected state, a first inverter which controls application of electric power to one ends of the phase windings, a second inverter which controls application of electric power to the other ends of the phase windings, switches connected between the other ends of the phase windings, and a motor controller which selectively sets one of an open-windings mode and a star-connection mode. The motor controller sets, at the time of startup of the motor, the open-windings mode.
A rotary compressor of an embodiment has a rotating shaft, an electric motor, a compression mechanism, a balancer, and a balancer cover. The compression mechanism has a cylinder, a main bearing, and a sub-bearing. The balancer is provided on the rotating shaft on a second side of the sub-bearing in an axial direction thereof. The balancer cover covers the balancer. A lubricating oil supply path that opens on a second side end face in the axial direction is provided in the rotating shaft. A supply hole that allows the supply path to communicate with the outside of the balancer cover is formed in the balancer cover at a position facing the supply path in the axial direction. A seal mechanism that seals between the balancer cover and the rotating shaft is provided between the balancer cover and the rotating shaft while allowing relative movement between the balancer cover and the rotating shaft in the axial direction.
A display displays an equipment management screen in which icons indicating equipment devices and having a first display size are superimposed on a floor configuration diagram of a building at positions corresponding to installation sites of the equipment devices. A display information generator, upon detection of an operation of specifying display of a group to which the equipment device corresponding to the operated icon belongs, identifies all equipment devices belonging to the specified group, changes display sizes of icons corresponding to the identified equipment devices to a second display size larger than the first display size, displays operation buttons for implementing settings of the identified equipment devices at prescribed positions on the equipment management screen in a superimposed manner, and changes display sizes of icons corresponding to equipment devices not belonging to the specified group to a third display size smaller than the first display size.
G06F 3/04817 - Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance using icons
G06F 3/0482 - Interaction with lists of selectable items, e.g. menus
G06F 3/04847 - Interaction techniques to control parameter settings, e.g. interaction with sliders or dials
G06T 3/40 - Scaling of a whole image or part thereof
A rotary compressor according to an embodiment includes a plurality of eccentric parts, a first balancer, and a second balancer. The plurality of eccentric parts include a first eccentric part, a second eccentric part, and a third eccentric part disposed to be aligned from one side to the other side. The second balancer is disposed on the other side of the first balancer. Angles between a direction of eccentricity of the first balancer and directions of eccentricity of the plurality of eccentric parts are configured to increase in an order of the third eccentric part, the second eccentric part, and the first eccentric part. Angles between a direction of eccentricity of the second balancer and directions of eccentricity of the plurality of eccentric parts are configured to increase in an order of the first eccentric part, the second eccentric part, and the third eccentric part.
F25B 31/02 - Compressor arrangements of motor-compressor units
F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
According to one embodiment, a compressor includes cylinders, a rotating shaft, bearings, and discharge valve mechanisms. Each of the discharge valve mechanisms includes a discharge valve and a valve presser. Regarding the valve pressers, each of the valve pressers includes a main body part lengthwise along the longitudinal direction of the discharge valve, and at least one of the valve pressers includes a fixed part extending in a direction intersecting the longitudinal direction of the discharge valve relatively to the main body part and fixed to the bearing.
F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
F04C 18/324 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in group and relative reciprocation between the co-operating members with vanes hinged to the inner member and reciprocating with respect to the outer member
To provide a water heat exchanger, a manufacturing method of the water heat exchanger, and a refrigeration cycle apparatus capable of preventing corrosion of a brazing material and deterioration of a refrigerant. The water heat exchanger according to the present embodiment includes a plurality of stacked heat-exchange plates, a joint (9) provided on at least one cover plate (14) of a pair of cover plates sandwiching the plurality of heat exchange plates, a first refrigerant pipe (10) brazed to the joint (9) by a brazing material (11), and a protector (12) provided to prevent contact between the brazing material (11) and the refrigerant circulating to the plurality of heat exchange plates through the first refrigerant pipe (10) and the joint (9).
F25B 13/00 - Compression machines, plants or systems, with reversible cycle
F28D 1/03 - 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 plate-like or laminated conduits
F28F 19/04 - Preventing the formation of deposits or corrosion, e.g. by using filters by using coatings, e.g. vitreous or enamel coatings of varnish
An air conditioner of an embodiment includes a plurality of outdoor units, one or more indoor units, and a control unit. The outdoor unit includes a compressor, a four-way valve, an outdoor heat exchanger, an outdoor expansion valve and an outdoor blower, and the outdoor units exchange heat between the outside air and a refrigerant. The indoor unit is an indoor unit connected to the plurality of outdoor units by a refrigerant pipe, includes an indoor heat exchanger, an indoor expansion valve, and an indoor blower, and exchanges heat between the indoor air and the refrigerant. The control unit controls the plurality of outdoor units and the one or more indoor units. The control unit controls the condensation pressure of the outdoor unit in a heating operation or the suction pressure of the outdoor unit in a defrosting operation to be equal to or smaller than an upper limit pressure, which is 1/1.5 times the rated maximum pressure during the heating operation when any of the outdoor units is in the defrosting operation.
F24F 11/89 - Arrangement or mounting of control or safety devices
F24F 11/42 - Defrosting; Preventing freezing of outdoor 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
F25B 5/02 - Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
According to one embodiment, an air conditioner carries out a heating operation, a cooling operation, a cooling/heating mixed operation in which a higher priority is given to cooling, and a cooling/heating mixed operation in which a higher priority is given to heating.
F24F 11/67 - Switching between heating and cooling modes
F24F 5/00 - Air-conditioning systems or apparatus not covered by group or
F24F 11/86 - Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
F24F 11/46 - Improving electric energy efficiency or saving
F25B 41/20 - Disposition of valves, e.g. of on-off valves or flow control valves
F25B 13/00 - Compression machines, plants or systems, with reversible cycle
F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems
A refrigeration cycle device of the embodiment includes a refrigerant flow path. The refrigerant flow path allows a refrigerant to flow through a compressor, a condenser, an expansion device, and an evaporator. The refrigerant contains CF3I. The refrigerant flow path includes a filter capable of capturing iodine ions.
F25B 43/00 - Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
F25B 43/02 - Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for separating lubricants from the refrigerant
F25B 9/00 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
34.
Touchscreen operation switch, equipment management device, and equipment-management-screen generation method
An equipment-management device associated with at least one of multiple pieces of equipment in a building under management, the equipment-management device including a display-information generator, a touchscreen, and an action-control-information generator. The display-information generator generates display information on a management screen wherein icons are arranged, each of the icons including an outer frame and a first area set at one end along the major axis within the outer frame. The touchscreen displays the display information and receives an input of information relating to an operation performed on the management screen. Upon detecting that a slide operation performed on one of the icons of the management screen from the first area through a first slide-operation detecting line set inside the outer frame excluding the first area, the action-control-information generator generates action-control information that switches the power supply of the corresponding equipment on or off.
G06F 3/048 - Interaction techniques based on graphical user interfaces [GUI]
G06F 3/04886 - Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus
F24F 11/52 - Indication arrangements, e.g. displays
G05B 19/042 - Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
G06F 3/04817 - Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance using icons
G06F 3/0482 - Interaction with lists of selectable items, e.g. menus
G06F 3/04847 - Interaction techniques to control parameter settings, e.g. interaction with sliders or dials
According to one embodiment, it preferentially executes, if the starting conditions for defrosting of each air conditioner are met chronologically close to each other, the defrosting operation with respect to the air conditioner starting condition for defrosting of which is earliest among the air conditioners without waiting for a time when the starting condition for defrosting thereof is met.
A state evaluation system includes a sensor, a filter, a signal processor, and an evaluator. The sensor detects elastic waves which are generated from industrial equipment in operation. The filter can pass elastic waves having frequency characteristics based on abrasion which is generated in the industrial equipment. The signal processor extracts a plurality of feature values using the elastic waves passing through the filter. The evaluator evaluates an abnormality of the industrial equipment on the basis of a combination of the extracted plurality of feature values.
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control (DNC), flexible manufacturing systems (FMS), integrated manufacturing systems (IMS), computer integrated manufacturing (CIM)
A compressor of an embodiment includes three suction pipes. A first center of a first suction pipe, a second center of a second suction pipe, and a third center of a third suction pipe are positioned at vertices of a triangle. A first distance between the first center and a center of a compressor main body is smaller than a second distance between the second center and the center of the compressor main body and a third distance between the third center and the center of the compressor main body. The first suction pipe is connected to a first suction port on an uppermost side. A second virtual plane on which a central axis of a main curved pipe part of the second suction pipe is disposed and a third virtual plane on which a central axis of a main curved pipe part of the third suction pipe is disposed are inclined to opposite sides from each other with respect to a first virtual plane on which a central axis of a main curved pipe part of the first suction pipe is disposed.
A detection device is connected to a plurality of communication devices by a communication line. The detection device has a reception unit, a measurement unit, and a detection unit. The reception unit receives signals with prescribed pulse widths transmitted from the plurality of communication devices, respectively. The measurement unit measures the pulse widths of the signals received by the reception unit. The detection unit is configured to detect the communication device disposed near a terminal end of the communication line as a terminal-end communication device on the basis of the plurality of pulse widths measured by the measurement unit.
F24F 11/65 - Electronic processing for selecting an operating mode
F24F 11/54 - Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
F24F 11/58 - Remote control using Internet communication
F24F 11/61 - Control or safety arrangements characterised by user interfaces or communication using timers
G05B 19/045 - Programme control other than numerical control, i.e. in sequence controllers or logic controllers using logic state machines, consisting only of a memory or a programmable logic device containing the logic for the controlled machine and in which the state of its outputs is dependent on the state of its inputs or part of its own output states, e.g
G08C 19/22 - Electric signal transmission systems in which transmission is by pulses by varying the duration of individual pulses
39.
ROTARY COMPRESSOR AND REFRIGERATION CYCLE APPARATUS
According to one embodiment, a rotary compressor includes a compression mechanism unit. When H is the length of a middle shaft part, Hp is the length of a bearing hole, Dp is the inner diameter of the bearing hole, Dc is the outer diameter of a crank part, Dm is the outer diameter of the middle journal part, C1 is the axial length of a first chamfered part provided to a middle shaft part-side end edge of the crank part, C2 is the axial length of a second chamfered part, C3 is the axial length of a third chamfered part, and C4 is the axial length. of a fourth chamfered part, Dp is larger than Dc and Dm, and the relationships of [Equation 1] H≤Hp, [Equation 2] H>Hp−C1−C2−√{square root over ((Dp2−Dc2))}, and [Equation 2] H>Hp−C3−C4−√{square root over ((Dp2−Dm2))} are all satisfied.
F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
40.
ROTARY COMPRESSOR AND REFRIGERATION CYCLE APPARATUS
According to one embodiment, a rotary compressor includes a compression mechanism unit. The compression mechanism unit includes at least three cylinder bodies interposed between a first bearing and a second bearing, a plurality of partition plates provided between adjacent cylinder bodies, and a plurality of rollers compressing a working fluid in cylinder chambers of the cylinder bodies, and at least three cylinder chambers are partitioned by an end plate of the first bearing, an end plate of the second bearing, and the partition plates. Each of the end plates includes a first discharge port discharging the working fluid to a muffler chamber. Each of a plurality of partition plates includes an intermediate muffler chamber, and a second discharge port discharging the working fluid.
An air conditioner management device that has a plurality of air conditioners as management targets, includes: a displayed-information generation unit that, as for the plurality of air conditioners, generates display information on a summary screen including mode-specific working unit number information indicating the number of air conditioners currently in an ON state in each set working mode and mode-specific stopped unit number information indicating the number of air conditioners currently in an OFF state in each set working mode; and a display unit that displays the display information generated by the displayed-information generation unit.
F24F 11/52 - Indication arrangements, e.g. displays
F24F 11/54 - Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
F24F 11/58 - Remote control using Internet communication
G05B 15/02 - Systems controlled by a computer electric
F24F 11/523 - Indication arrangements, e.g. displays for displaying temperature data
According to one embodiment, a rotary shaft of a rotary compressor includes a first connection shaft and a second connection shaft. The first connection shaft has a cross-sectional shape including a first outer surface, a second outer surface, and a third outer surface. L1 represents a distance from an intersecting point located on one end side where the first outer surface and the second outer surface intersect each other to the rotation center, L2 represents a distance from an intersecting point located on an other end side where the first outer surface and the second outer surface intersect each other, to the rotation center, and L3 represents a distance from the third outer surface to the rotation center, a relationship of L1>L3≥L2 is satisfied.
F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
F04C 28/02 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for several pumps connected in series or in parallel
F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
An equipment-management device associated with at least one of multiple pieces of equipment in a building under management, the equipment-management device including a display-information generator, a touchscreen, and an action-control-information generator. The display-information generator generates display information on a management screen wherein icons are arranged, each of the icons including an outer frame and a first area set at one end along the major axis within the outer frame. The touchscreen displays the display information and receives an input of information relating to an operation performed on the management screen. Upon detecting that a slide operation performed on one of the icons of the management screen from the first area through a first slide-operation detecting line set inside the outer frame excluding the first area, the action-control-information generator generates action-control information that switches the power supply of the corresponding equipment on or off.
G06F 3/0488 - Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
G06F 3/0481 - Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
G06F 3/0482 - Interaction with lists of selectable items, e.g. menus
G06F 3/0484 - Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
G05B 19/042 - Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
F24F 11/52 - Indication arrangements, e.g. displays
47.
Rotary compressor and refrigeration cycle apparatus
According to one embodiment, a rotary compressor includes a compression mechanism unit and an electric motor. The compression mechanism unit includes a first bearing, a second bearing, first to third refrigerant compression units, a second intermediate partitioning panel, and a rotation shaft. The compression mechanism unit is fixed to the sealed container by a pair of fixing units which are provided at two locations spaced apart from each other in the axial direction of the rotation shaft, and the center of gravity of a structure comprising the compression mechanism unit and the rotor of the electric motor is positioned between the pair of fixing units.
A highly reliable horizontal rotary compressor is provided with a sealed housing, an electric motor, a compression mechanism, a frame which divides the inside of the sealed housing into an electric-motor chamber and a compression-mechanism chamber, and a plurality of bolts that fasten the compression mechanism to the frame. The compression mechanism includes a main bearing fasten to the end surface of a cylinder. A bearing contact-surface of the end surface of the cylinder is in contact with the main bearing, is located closer to the electric motor than a frame contact-surface which is in contact with the frame. The surface roughness of the frame contact-surface is greater than the surface roughness of the bearing contact-surface. The contact-surface of the frame is a single continuous flat surface located above the bolt located at the lowest position among the plurality of bolts.
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
49.
Compressor and accumulator with multiple suction tubes for a refrigeration cycle device
A compressor includes three suction pipes. A first center of a first suction pipe, a second center of a second suction pipe, and a third center of a third suction pipe are positioned at vertices of a triangle. A first distance between the first center and a center of a compressor main body is smaller than a second distance between the second center and the center of the compressor main body and a third distance between the third center and the center of the compressor main body. A second flow path cross section and a third flow path cross section are positioned on opposite sides of a center connection line sandwiched therebetween. The first suction pipe is connected to a suction port which is at an uppermost position among three suction ports provided in a case.
According to one embodiment, a horizontal compressor comprises a container accommodating a compression mechanism unit and an electric motor unit, a first leg fixed to the container near the motor unit, a second leg fixed to an end of the container on the compression mechanism unit side, an accumulator between the legs, and a joint port in the container. The second leg includes a first support portion supporting the container in a horizontal attitude, and a second support portion supporting the container standing in a vertical attitude. The first support portion extends in a direction away from the joint port relative to the second support portion.
F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
F25B 1/00 - Compression machines, plants or systems with non-reversible cycle
F25B 1/04 - Compression machines, plants or systems with non-reversible cycle with compressor of rotary type
F25B 31/02 - Compressor arrangements of motor-compressor units
A heat pump device is equipped with a compressor for compressing a refrigerant; a converter for converting a voltage of an alternating current power supply into a boosted direct current; an inverter for converting the direct current output of the converter into an alternating current, supplying the alternating current to the compressor; a voltage detector for detecting an input voltage to the converter; a stop controller for stopping operation of the converter and the inverter when resonance occurs in the voltage detected by the voltage detector; a limit controller for sending an instruction to limit an input current to the converter so as to avoid the resonance; and a manually operable input interface for sending an instruction to cause the limit control unit to operate.
F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems
F25B 13/00 - Compression machines, plants or systems, with reversible cycle
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
H02P 27/04 - 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
52.
Air-conditioning control device, air-conditioning system, and air-conditioning control method
According to one embodiment, an air-conditioning control device includes model storage and a processor. The model storage is configured to store a discomfort probability model which estimates a value of discomfort of an occupant by a pair of time elapsed after an energy-saving operation of an air conditioner is turned on and before the energy-saving operation is turned off by the occupant, and an air-conditioning state at the time when the energy-saving operation is turned off. The processor is configured to acquire a current air-conditioning state during the energy-saving operation of the air conditioner, and turn off the energy-saving operation, based on occupant's discomfort estimated from the discomfort probability model.
F24F 11/46 - Improving electric energy efficiency or saving
F24F 11/64 - Electronic processing using pre-stored data
F24F 11/65 - Electronic processing for selecting an operating mode
G05B 13/04 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators
According to one embodiment, an air conditioner includes a blower device and a heat exchanger. The blower device includes a fan motor, a fan, a fan case and a coupling member. The fan motor includes a first end section and a second end section separate from each other. The fan is coaxially fixed to a rotating shaft. The fan case accommodating the fan and for guiding air discharged from the fan toward the heat exchanger. The coupling member includes a pair of arm sections respectively coupled to the first end section and the second end section, and a bar-like section extending in the axial direction of the rotating shaft across the arm sections and coupled to the fan case. The fan motor and the fan case are integrally coupled to each other through the coupling member.
According to one embodiment, when an effective value of an input current flowing into a booster circuit rises to a value greater than or equal to a second set value, boosting of the booster circuit is started and, after the start, when the effective value lowers to a value lower than a first set value lower than the second set value, boosting of the booster circuit is stopped. Then, if the three-phase AC source is in an unbalanced state, the first set value is set to a value lower than usual.
H02M 7/04 - Conversion of ac power input into dc power output without possibility of reversal by static converters
H02M 1/08 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
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 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
55.
Air conditioning apparatus with compressor discharge pressure sensing
According to one embodiment, an air conditioning apparatus has one or a plurality of indoor units, an outdoor unit, and a controller. The one or plurality of indoor units have an indoor heat exchanger, and an indoor expansion valve in which a degree of opening is variable. The outdoor unit has an outdoor heat exchanger, a four-way valve, a compressor, and a discharge pressure sensor configured to detect a pressure of a refrigerant discharged from the compressor. When a discharge pressure detected by the discharge pressure sensor is less than a predetermined pressure threshold value while a heating operation is performed, the controller sets a maximum time for continuing a defrosting operation started by a start condition of the defrosting operation being satisfied to be shorter than a maximum time for continuing the defrosting operation when the discharge pressure is equal to or higher than the pressure threshold value.
In one embodiment, an annular groove and an elastic portion are formed at an end portion of a main bearing on a side facing a cylinder chamber. An annular groove and an elastic portion is formed at an end portion of the sub-bearing on a side facing the cylinder chamber. A depth of the annular groove of the main bearing is formed larger than that of the sub-bearing. An outer peripheral surface of the elastic portion of the main bearing is formed in a straight shape so that thicknesses of a base portion and a tip portion of the elastic portion are the same. An outer peripheral surface of the elastic portion of the sub-bearing is formed in a tapered shape so that a thicknesses of a base portion of the elastic portion is larger than that of a tip portion of the elastic portion.
F25B 31/02 - Compressor arrangements of motor-compressor units
F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems
F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
F25B 1/04 - Compression machines, plants or systems with non-reversible cycle with compressor of rotary type
A rotary compressor has a blade which is provided in a cylinder so that reciprocating movement can be performed. The blade partitions a cylinder chamber into a suction chamber and a compression chamber by making a tip end portion of the blade contact the outer peripheral surface of a roller. The blade includes two blade members provided so as to be superimposed in an axial direction of a rotary shaft. Tip end portions of the two blade members are made to contact the outer peripheral surface of the roller. The two blade members are energized by a coil spring so that superimposed portions of the blade members are made in contact.
F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
According to one embodiment, the controller configured to, when an operation of the boosting circuit is in the boosting mode, and if an instantaneous value Ia of a current flowing through the reactor lowers to a value smaller than or equal to a set value Ias, switch the operation of the boosting circuit from the boosting mode to the non-boosting mode.
H02M 1/44 - Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
H02M 1/42 - Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
H02P 27/06 - 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
H02M 1/32 - Means for protecting converters other than by automatic disconnection
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 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
According to one embodiment, an outdoor unit is provided with a housing, an outdoor heat exchanger, and a communication unit. The housing has a ventilation opening and contains the outdoor heat exchanger. The communication unit is disposed within the housing at a position facing the ventilation opening and performs contactless data communication with a nearby information terminal.
According to one embodiment, a ceiling-embedded air conditioner includes a main body incorporating a heat exchanger, a decorative panel attached to a lower edge of the main body and including a discharge port discharging air heat-exchanged in the heat exchanger to a room, and a drain pan including a thermal insulating member and a synthetic resin member coating the thermal insulating member. The drain pan includes a recess for receiving drain water produced in the heat exchanger, a communication port provided on a periphery of the recess and communicating with the discharge port of the decorative panel, and a wall standing between the periphery of the recess and the communication port. The wall is composed of the synthetic resin member.
The multiple cylinder rotary compressor includes a compressor body including a hermetic case, the hermetic case housing inside a rotating shaft, an electric motor section, and a compression mechanism body. The compression mechanism body includes at least three compression mechanism sections which stack with each other, partition plates between the corresponding adjacent compression mechanism sections, and a primary bearing and a secondary bearing supporting the rotating shaft on both end sides of the compression mechanism body. The compression mechanism sections include a cylinder forming inside a cylinder chamber, an eccentric section provided to the rotating shaft, disposed in the cylinder chamber, a roller fitted to the eccentric section, rotating eccentrically within the cylinder chamber, and a blade dividing the inside of the cylinder chamber into two. At least one partition plate constitutes a partition plate bearing supporting the rotating shaft.
F25B 9/00 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
F25B 1/04 - Compression machines, plants or systems with non-reversible cycle with compressor of rotary type
F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems
F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
According to one embodiment, a refrigeration cycle apparatus, a fusible plug is attached to a low-pressure-side pipe between an evaporator and a compressor. The refrigeration cycle apparatus includes a heat quantity reduction member. The fusible plug fuses when a temperature of heat transmitted from the low-pressure-side pipe to the fusible plug reaches a predetermined value or more, and then opens the inside of the low-pressure-side pipe to atmosphere. The heat quantity reduction member reduces the quantity of heat to be transmitted to the fusible plug.
In one embodiment, a compression mechanism unit of a rotary compressor includes a cylinder includes a cylinder chamber, a roller in the chamber, first and second vanes which come into contact with the roller and partition the chamber into a compression side and an absorption side, and a bias member which biases the vanes. On both end sides of a posterior end portion of the first vane, first vane side attachment portions having an equal dimension in the axial direction are provided. On both end sides of the second vane along the axial direction of the axis, second vane side attachment portions having an equal dimension in the axial direction are provided. The vanes are attached to the bias member via the attachment portions.
F01C 1/344 - Rotary-piston machines or engines having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
F01C 1/356 - Rotary-piston machines or engines having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
F04C 18/332 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in group and relative reciprocation between the co-operating members with vanes hinged to the outer member and reciprocating with respect to the inner member
F04C 23/02 - Pumps characterised by combination with, or adaptation to, specific driving engines or motors
F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
F04C 27/00 - Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
According to one embodiment, an object of the present invention is to provide an outdoor unit of an air conditioner which is basically composed of small-size component parts and can have a large air-conditioning capacity by stacking the small-size component parts in a vertical direction in accordance with a required air-conditioning capacity. The outdoor unit of an air conditioner includes an outdoor heat exchanger, an air-blower assembly including an air exchanger, and a housing accommodating the outdoor heat exchanger and the air-blower assembly. The outdoor heat exchanger, the air-blower assembly and the housing, and another outdoor heat exchanger, another air-blower assembly and another housing are configured to be stackable on each other in a vertical direction.
An electric equipment includes: an electric component box; a control board accommodated in the electric component box and provided thereon with a heat-generating electric component; a heat sink thermally connected with the electric component; and a sheet material provided between the electric component box and the control board, wherein the sheet material is made of an elastic material and provided with an opening section through which the heat sink projects outward, the opening section is provided with a convex section formed integrally with the sheet material and configured to be elastically deformed to engage the sheet material with the heat sink, and the electric component box is provided with a heat sink hole through which the heat sink and the convex section project outward of the electric component box. An air conditioner is provided with such electric equipment.
A compression mechanism portion housed in a closed case is provided with a partition plate located between a first cylinder and a second cylinder. The compression mechanism includes a first bearing discharge port formed to a first bearing and a first partition plate discharge port formed to the partition plate as discharge ports for discharging working fluid compressed in a first cylinder chamber, and also includes, as discharge port for discharging working fluid compressed in a second cylinder chamber, a second bearing discharge port formed to a second bearing and a second partition plate discharge port formed to the partition plate. A cross-sectional area of the first partition plate discharge port is formed to be smaller than a cross-sectional area of the first bearing discharge port, and a cross-sectional area of the second partition plate discharge port is formed to be smaller than a cross-sectional area of the second bearing discharge port.
F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
F04C 28/24 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves
F25B 1/00 - Compression machines, plants or systems with non-reversible cycle
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
According to one embodiment, an apparatus includes a housing, two high-temperature-side refrigeration circuits and two low-temperature-side refrigeration circuits. Each of the high-temperature-side refrigeration circuits is configured to exchange heat with both of the two low-temperature-side refrigeration circuits by cascade heat exchangers. A hot-water pipe letting water or hot water through water-refrigerant heat exchangers of the high-temperature-side refrigeration circuits is provided. When the low-temperature-side refrigeration circuit conducts a defrosting operation of the evaporator, the low-temperature-side refrigeration circuits are controlled in such a way that the low-temperature-side refrigerant circuit releases heat in the cascade heat exchanger.
F25B 7/00 - Compression machines, plants 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
According to one embodiment, a cascade refrigeration cycle apparatus according to the present embodiment includes a high-temperature-side and a low-temperature-side refrigeration circuits, an inverter and a control section. The high-temperature-side refrigeration circuit includes a first compressor and a cascade heat exchanger. The low-temperature-side refrigeration circuit includes a second compressor and the cascade heat exchanger. The inverter connected to at least one of the compressors. The control section controls the inverter so that a set operating frequency for the first compressor is higher than a set operating frequency for the second compressor when an operation of the apparatus is started.
F25B 7/00 - Compression machines, plants 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 1/00 - Compression machines, plants or systems with non-reversible cycle
According to one embodiment, a heat source unit apparatus includes air heat exchangers, each includes a plurality of fins arranged at prescribed intervals, heat exchanging pipes penetrating the fins, and bent strips extending at sides and bent in the same direction, and a heat exchange module includes two air heat exchangers, each having the bent strips opposed to those of the other air heat exchanger, the air heat exchangers being inclined such that lower edges are close to each other and upper edges are spaced apart, whereby the heat exchange module is shaped like a letter V as seen from side.
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
F28B 1/06 - Condensers in which the steam or vapour is separated from the cooling medium by walls, e.g. surface condenser using air or other gas as the cooling medium
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
F25B 13/00 - Compression machines, plants or systems, with reversible cycle
F25B 25/00 - Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups
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 9/26 - Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
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 1/02 - 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
The height measured from the bottom surfaces of support legs is set to be 2.5 or more times as great as the outer diameter of the compressor body, the height of the center of gravity measured from the bottom surfaces of the support legs to the center of gravity is set to be ½ or less the overall height, and the support legs are provided in number of four, based on the fulfillment of Rc/cos θ
F01C 21/18 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
F01C 1/063 - Rotary-piston machines or engines 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 with coaxially-mounted members having continuously-changing circumferential spacing between them
F04C 23/02 - Pumps characterised by combination with, or adaptation to, specific driving engines or motors
F01C 21/00 - Component parts, details, or accessories, not provided for in groups
F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
F04B 39/14 - Provisions for readily assembling or disassembling
F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
A heat source apparatus of a heat source system made up of a heat source machine side and a load facility side includes a heat source machine, and a heat source controller, wherein the heat source machine includes: a water heat exchanger that exchanges heat between heat source water and a refrigerant circulating through a refrigeration cycle; a primary pump that delivers heat source water to the water heat exchanger; and a heat source machine control device that operates based on information from the water heat exchanger and the primary pump, and wherein the heat source controller is connected to the heat source machine control device on a heat source side and to the load facility side so as to determine, after the primary pump is activated, whether or not the heat source water is normally fed by the primary pump based on a temperature difference between the heat source water before and after the water heat exchanger or a pressure difference between the heat source water before and after the water heat exchanger, and so as to then operate the refrigeration cycle after water feed is confirmed through water feed determination.
A compression mechanism units include cylinder chambers into which a low-pressure gas is introduced, vanes contained in a vane groove, and a spring body that always causes compression operation in the cylinder chambers by providing an elastic force to a rear-end portion of one of the vanes, includes a pressure switching mechanism that switches to perform compression operation by guiding a high-pressure gas/not to perform the compression operation by guiding a low-pressure gas, is provided with a lubricating oil communication path communicatively connecting a oiling groove and a oil stagnant portion, and opposing the oiling groove to a portion other than the lubricating oil communication path when the vanes are in a top dead center position.
According to one embodiment, a heat source unit apparatus includes an electric component box that is disposed in a housing, a power supply cable and a communication cable being inserted into the electric component box from an outside of the housing, a metallic electric cable cover member that is interposed between the electric component box and the housing, a power supply cable hole and a communication cable hole being made in one side surface of the housing, the power supply cable and the communication cable being covered with a cable cover member, and a partition plate that is provided in the cable cover member to partition the electric cable cover member into a region where the power supply cable is accommodated and a region where the communication cable is accommodated.
A refrigerant compressor includes a compression unit having a roller and a vane for compressing refrigerant. The vane has a film having first to fourth layers on its metallic base member. The first layer is made of chromium. The second layer is made of chromium and tungsten-carbide. The third layer is made of metal-containing amorphous-carbon containing at least tungsten or tungsten-carbide. The fourth layer is made of non-metal-containing amorphous-carbon containing carbon and hydrogen. In the second layer, chromium content-rate on a first-layer side is larger than on a third-layer side, and tungsten-carbide content-rate on the third-layer side is larger than on the first-layer side. In the third layer, content-rate of the at least tungsten or tungsten-carbide on a second-layer side is larger than on a fourth-layer side. The roller with which an end-edge of the vane slidably-contacts is made of flake graphite cast iron containing molybdenum, nickel and chromium.
F01C 21/00 - Component parts, details, or accessories, not provided for in groups
F01C 1/30 - Rotary-piston machines or engines having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
B32B 15/04 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance
F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
A closed compressor provided for achieving a wobbling suppressing effect of a rotating shaft by a bearing frame portion and improving a reliability thereof by preventing a bearing frame portion from being deformed due to a gas load includes a bearing member provided between the one end in the axial direction of the closed container and the electric motor and includes a bearing portion pivotally supporting the rotating shaft and a bearing frame portion holding the bearing portion, and the bearing frame portion includes a high rigidity portion and a low rigidity portion in a circumferential direction and the bearing frame portion is arranged in the closed container such that a direction in which a load acting on the bearing portion becomes maximum coincides with a direction in which rigidity of the bearing frame portion is high.
F04B 35/04 - Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
F01C 11/00 - Combinations of two or more machines or engines, each being of rotary-piston or oscillating-piston type
F04C 11/00 - Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
F04C 18/00 - Rotary-piston pumps specially adapted for elastic fluids
F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
F16C 35/04 - Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
F16C 35/077 - Fixing them on the shaft or housing with interposition of an element between housing and outer race ring
F25B 1/04 - Compression machines, plants or systems with non-reversible cycle with compressor of rotary type
F25B 13/00 - Compression machines, plants or systems, with reversible cycle
According to one embodiment, a heat source unit apparatus includes air heat exchangers, each includes a plurality of fins arranged at prescribed intervals, heat exchanging pipes penetrating the fins, and bent strips extending at sides and bent in the same direction, and a heat exchange module includes two air heat exchangers, each having the bent strips opposed to those of the other air heat exchanger, the air heat exchangers being inclined such that lower edges are close to each other and upper edges are spaced apart, whereby the heat exchange module is shaped like a letter V as seen from side.
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
F28B 1/06 - Condensers in which the steam or vapour is separated from the cooling medium by walls, e.g. surface condenser using air or other gas as the cooling medium
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 1/02 - 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
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 9/26 - Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
87.
Secondary pump type heat source and secondary pump type heat source control method
A secondary pump-type heat source system includes: heat sources connected in parallel; a load system in which the heat source water flows; a primary pump supplying the heat source water to the load system; a secondary pump provided for each heat source and supplies the heat source water subjected to heat exchange in the load system to the heat source; and a heat source controller calculating flow quantity of the heat source water flowing in the heat source side and flow quantity of the heat source water flowing in the load system side by assigning a result from measurement by a water temperature sensor detecting heat source temperature to an operating characteristic of each heat source and controlling operation of the secondary pumps based on the calculation result.
Disclosed is an air conditioner which can obtain an energy-saving effect without any change to the setting temperature set by a user and, accordingly, without causing discomfort to the user. If a capacity restriction mode is set to at least one of indoor units Y1 and Y2, the setting temperature Ts in the indoor units Y1 and Y2 is not changed and is maintained at a value set by the user and a compressor 1 is operated with the capacity less than the normal capacity.
F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems
F25B 49/00 - Arrangement or mounting of control or safety devices
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
b) of a compression mechanism formed of tool steel. The second layer (25) is formed to have a chromium content higher on a side of the first layer (24) than a side of the third layer (26), and have a tungsten carbide content higher on the side of the third layer (26) than the side of the first layer (24). In addition, the third layer (26) is formed to have a tungsten content or a tungsten carbide content higher on a side of the second layer (25) than a side of the fourth layer (27).
F01C 21/00 - Component parts, details, or accessories, not provided for in groups
F01C 1/30 - Rotary-piston machines or engines having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
B32B 15/04 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance
B21D 39/00 - Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
In a ceiling-embedded air conditioner, a panel fastening screw that fastens a decorative panel to an indoor unit body embedded in a ceiling is previously mounted to the indoor unit body and has an intermediate portion having a small diameter with no threaded portion.
An indoor unit of an air conditioner includes a heat exchanger accommodated inside a indoor unit body which is a housing whose lower face is opened, a drain pan which is disposed below the heat exchanger and receives drain water generated at the heat exchanger, a drain pump which is detachably disposed within the indoor unit body, sucks drain water accumulated in the drain pan and discharges the drain water to the outside, a drain port which is disposed at a bottom face wall section of the drain pan, the port being an opening portion through which the drain pump is insertable, and a drain cap which openably closes the drain pump insertion port.
F25D 17/04 - Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating gas, e.g. by natural convection
94.
Multi-cylinder rotary compressor and refrigeration cycle equipment
A rotary compressor, in which formulas RcL≧H−Cr−Cs is established, when the axial direction of the connecting part is L, the axial length of the first roller is H, the axial length of a bevel formed at the inside edge of the first roller is Cr, and the axial direction of a bevel of the second crankshaft is Cs.
A rotary compressor, which contains a motor unit and compression mechanism in a sealed case, transmits the rotational power of the motor to the compression mechanism through a rotary shaft and crankshafts eccentrically provided in the rotary shaft, and compresses a refrigerant in the compression mechanism, wherein the rotary compressor is configured to have H/(φDa•E)=K, and K≦0.065, and the formula 0.35+0.07•K•H≦L/φDb≦0.45+0.07•K•H, assuming that the inside diameter of the cylinder forming the compression mechanism is φDa [mm], the cylinder height is H [mm], the crankshaft eccentricity is E [mm], the crankshaft diameter is φDb [mm], and the sliding lengths of the crankshaft and a roller fitted over the crank are set to L [mm].
First and second rectification circuits are connected to a commercial AC power supply by a reactor. A load is connected between the output terminal on the positive side of the first rectification circuit and the output terminal on the negative side of the second rectification circuit. While the voltage or the commercial AC power supply remains at the positive level, a current flows through a path constituted by one of the diodes of the first rectification circuit and one of the diodes of the second rectification circuit. While the voltage of the commercial AC power supply remains at the negative level, too, a current flows through the path constituted by one of the diodes of the first rectification circuit and one of the diodes of the second rectification circuit.
H02M 5/42 - 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
H02M 7/04 - Conversion of ac power input into dc power output without possibility of reversal by static converters
An air conditioner according to an embodiment of the invention includes a refrigerator cycle unit having a variable speed compressor, an outdoor heat exchanger, a decompression device, an indoor heat exchanger, and an accumulator sequentially connected to one another, a bypass pipe that connects the discharge side of the compressor and an outlet of the accumulator and has a two-way valve in the middle thereof, a discharge temperature sensor that detects the temperature of the compressor, and a controller that opens or closes the two-way valve, and limits the number of rotations of the compressor to a predetermined value or less, on the basis of the temperature detected by the discharge temperature sensor when the compressor starts.
To improve operation efficiency and safety at the time of trial run after installation and inspection, an outdoor unit includes a casing, a box provided within the casing, a main control board which is disposed along a perpendicular direction within the casing and at least on a forward side and a deep side such that they overlap each other, a fan motor driving board and a noise filter board, wherein the main control board is provided to be rotatable to the forward side with its bottom side as a fulcrum point.
Defrosting operation is possible by causing refrigerant discharged from a compressor to flow to an outdoor heat exchanger, and returning the refrigerant passed through the outdoor heat exchanger to the compressor through a water-heat exchanger, while operating a pump. Quick defrosting operation is possible by causing refrigerant discharged from a compressor to flow to an outdoor heat exchanger, and returning the refrigerant passed through the outdoor heat exchanger directly to the compressor, while stopping a pump. The temperature of water that has flowed into a water-heat exchanger is detected. According to the detected temperature, the defrosting operation using hot water and quick defrosting operation are selectively executed.
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