Provided is an electrically operated valve 11 comprising: a valve body 13 having a valve chamber 14; a valve member 31 that has a flow path space 32 inside, and is rotationally driven in the valve chamber to switch a flow path of fluid; and a transmission mechanism including a drive shaft 41 that transmits a driving force for rotating the valve member to the valve member. The valve body includes: a first flow path hole 15 that communicates with the flow path space to allow the fluid to flow into the flow path space; a second flow path hole 16 of which the state of communication with the flow path space is changed depending on the position of rotational displacement of the valve member, and which communicates with the flow path space at a first rotational displacement position of the valve member to allow the fluid to flow out from the flow path space; and a third flow path hole 17 of which the state of communication with the flow path space is changed depending on the position of rotational displacement of the valve member, and which communicates with the flow path space at a second rotational displacement position of the valve member to allow the fluid to flow out from the flow path space. A rotation axis X of the valve member and a rotation axis Y of the drive shaft intersect with each other.
F16K 5/06 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
F16K 31/04 - Operating means; Releasing devices magnetic using a motor
2.
VALVE DEVICE, EXPANSION VALVE, METHOD FOR MANUFACTURING VALVE DEVICE, AND METHOD FOR MANUFACTURING EXPANSION VALVE
Provided are a valve device, an expansion valve, a method for manufacturing a valve device, and a method for manufacturing an expansion valve with which manufacturing costs can be reduced without increasing the number of manufacturing processes. A valve device of a valve main body includes a base surface portion which is a flat surface that is formed by subjecting one side surface of the valve main body to a prescribed cutting process or grinding process, and to which an object to be fixed can be attached, and an adjacent portion adjacent to at least a portion of an edge of the base surface portion, wherein the adjacent portion is not subjected to the prescribed cutting process or grinding process, and has a shape that does not project relative to the base surface portion in a normal line direction of the base surface portion. By having such a valve main body, the amount of material that is cut and discarded during processing is reduced, and since burrs are not formed between the base surface portion and the adjacent portion, a process to remove burrs is not required, and there is thus no increase in the number of processes.
F16K 27/00 - Construction of housings; Use of materials therefor
F16K 31/68 - Operating means; Releasing devices responsive to temperature variation actuated by fluid pressure or volumetric variation in a confined chamber
This flow path switching valve has a valve unit comprising: a valve body having a first port and a second port formed in a valve chamber, and a third port formed on a bottom surface of the valve chamber; a first valve body disposed rotatably in the valve chamber, and in which a flow path is formed; a first flow path communicating with the first port; a second flow path provided along with the first flow path with the valve body interposed therebetween, and communicating with the second port; a branch part communicating with the third port and branching at least in two directions; a third flow path and a fourth flow path each connected to the branch part; and a second valve body disposed in the branch part and which rotates in conjunction with the first valve body. The communication state of the first port, the second port, and the third port is selectively switched through the first valve body, and the communication state of the third port, the third flow path, and the fourth flow path is switched by the second valve body.
F16K 11/056 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only lift valves with ball-shaped valve members
F16K 11/07 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with linearly sliding closure members with cylindrical slides
The present invention provides a flow path switching valve comprising a plurality of valve units in each of which a connection state of a plurality of flow paths is changed by rotating a valve element provided in a valve chamber of a valve body, the flow path switching valve including: a gear shaft that rotates the valve element of one valve unit, a gear shaft that rotates the valve element of the other valve unit, a rotational drive unit for rotating the gear shafts, and a driving force distribution mechanism that distributes the rotational driving force of the rotational drive unit to the two gear shafts.
F16K 11/087 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug
A stator unit includes a main circuit board parallel to an up-and-down direction, a sub circuit board at a right angle to the main circuit board, a magnetic sensor on the sub circuit board, and a housing including a sub circuit board space that is located adjacent to an inner space of the stator unit in which a can is disposed. The sub circuit board includes a first end connected to the main circuit board via a circuit board terminal and a second end located near the inner space in the sub circuit board space. The magnetic sensor is located closer to the inner space than the circuit board terminal is.
F16K 31/04 - Operating means; Releasing devices magnetic using a motor
F16K 27/02 - Construction of housings; Use of materials therefor of lift valves
F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
6.
STATOR UNIT, ELECTRIC VALVE, AND MANUFACTURING METHOD FOR STATOR UNIT
[Problem] To provide a stator unit and an electric valve by which it is possible to prevent electromagnetic waves emitted from a stator and to prevent a malfunction of an operation of an electronic component, and to provide a manufacturing method for the stator unit. [Solution] A stator unit 8 has a stator 80 and a housing 100 that is made of synthetic resin and that is molded integrally with the stator 80. Furthermore, the stator unit 8 has an electromagnetic-wave suppression film 90 arranged between the stator 80 and the housing 100.
F16K 31/04 - Operating means; Releasing devices magnetic using a motor
H02K 11/02 - Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for suppression of electromagnetic interference
H02K 37/14 - Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets with magnets rotating within the armatures
This flow path switching valve comprises: a valve unit including a valve main body in which a first port and a second port through which a fluid flows in and out are formed on a wall surface forming a valve chamber, and a third port is formed on a bottom surface of the valve chamber, a valve body disposed rotatably in the valve chamber, and in which a flow path is formed, a first flow path communicating with the first port, a second flow path provided along with the first flow path with the valve main body interposed therebetween, and communicating with the second port, and a third flow path communicating with the third port and which is open on the side opposite to the third port; and a rotation drive part coupled to the valve unit and which rotates the valve body. To the first flow path and the second flow path of the valve unit, the first flow path and the second flow path of another valve unit can be respectively connected and coupled.
F16K 11/087 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug
F16K 11/22 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with two or more closure members not moving as a unit operated by separate actuating members with an actuating member for each valve, e.g. interconnected to form multiple-way valves
F16K 27/00 - Construction of housings; Use of materials therefor
This flow path switching valve includes: a valve unit provided with a valve body which has a first inlet/outlet and a second inlet/outlet formed, on a wall surface constituting a valve chamber, so as to allow a fluid to flow in and out therethrough, and has a third inlet/outlet formed on the bottom surface of the valve chamber, a valve element which is rotatably disposed inside the valve chamber and which has formed therein a flow channel, a first flow channel which is in communication with the first inlet/outlet, a second flow channel which is arranged parallel with the first flow channel with the valve body therebetween and which is in communication with the second inlet/outlet, and a third flow channel which is in communication with the third inlet/outlet and which is open at a side opposite to the third inlet/outlet; and a rotary drive part that is connected to the valve unit and that rotates the valve element. At a side of the valve unit opposite to the rotary drive part, another valve unit can be overlaid and connected.
F16K 11/087 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug
F16K 11/22 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with two or more closure members not moving as a unit operated by separate actuating members with an actuating member for each valve, e.g. interconnected to form multiple-way valves
F16K 27/00 - Construction of housings; Use of materials therefor
9.
MOTORIZED VALVE, MOTORIZED VALVE DEVICE, AND METHOD FOR ASSEMBLING MOTORIZED VALVE DEVICE
[Problem] To provide: a motorized valve and a motorized valve device that can be used across multiple types of systems; and an attachment method for a motorized valve. [Solution] A motorized valve (3) comprises a valve body assembly (5), a stator unit (6), and a nut member (7). The stator unit (6) is attached to the valve body assembly (5). The outer peripheral surface of a body member (10) of the valve body assembly (5) has provided thereto a male screw (11e). The male screw (11e) is screwed into a female screw (7e) provided on the inner peripheral surface of the nut member (7) and a female screw (201e) provided on the inner peripheral surface of an attachment hole (201) of a flow path block (2). The length of the male screw (11e) along an axial line (L) direction is greater than the length of the female screw (7e) along the axial line (L) direction.
In an electric valve, an upper surface of a main body portion of a valve body, a cylindrical portion of the valve body, and a flange member form a groove in an annular recess shape. A stator unit includes a tubular portion that surrounds the groove. A sealing member is disposed in the groove and held between the cylindrical portion of the valve body and the tubular portion of the sealing member.
A valve device capable of reducing pressure loss is provided. The valve device is provided with a valve main body having a valve chamber in which a valve body is arranged, inflow outlets, and communication holes communicating the valve chamber and the inflow outlets, and a rectification member arranged in the communication hole. The communication hole has a bent portion where the center line of the communication hole is bent, and the rectification member is arranged in the bent portion and has a corner portion formed by an inner circumferential surface bent or curved at an angle larger than the angle of the bent portion.
F16K 1/32 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces - Details
F15D 1/04 - Arrangements of guide vanes in pipe elbows or duct bends; Construction of pipe conduit elements or elbows with respect to flow, specially for reducing losses of flow
F16K 27/02 - Construction of housings; Use of materials therefor of lift valves
12.
MOTORIZED VALVE CONTROL DEVICE AND MOTORIZED VALVE DEVICE
[Problem] To provide a motorized valve control device and a motorized valve device that can more accurately detect a malfunction of a stepping motor of a motorized valve. [Solution] A motorized valve device (1) comprises a motorized valve (5) and a motorized valve control device (100). The motorized valve (5) has a stepping motor (66), and the stepping motor (66) has a magnet rotor (31), an A-phase stator (61), and a B-phase stator (62). The motorized valve control device (100) controls an A-phase current (Ia) which is supplied to an A-phase coil (61c) of the A-phase stator (61), and a B-phase current (Ib) which is supplied to a B-phase coil (62c) of the B-phase stator (62), by a PWM method. The motorized valve control device (100) detects occurrence of an abnormality in the A-phase coil (61c) or the B-phase coil (62c), on the basis of a comparison between an A-phase duty ratio (Da) related to the A-phase current (Ia) and a B-phase duty ratio (Db) related to the B-phase current (Ib).
F16K 31/04 - Operating means; Releasing devices magnetic using a motor
H02P 8/36 - Protection against faults, e.g. against overheating or step-out; Indicating faults
F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
F16K 51/00 - Other details not peculiar to particular types of valves or cut-off apparatus
A combined valve includes a body block having multiple joints for letting fluid in and out, and a first four-way valve and second four-way valve provided inside the body block to selectively allow fluid flowing in from any one joint to flow out from any other joint. A shaft that operates a stem valve of the one first four-way valve is provided on one side of the body block, and a shaft that operates a stem valve of the other second four-way valve is provided on the side opposite to the one side of the body block.
F16K 27/00 - Construction of housings; Use of materials therefor
F16K 11/20 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with two or more closure members not moving as a unit operated by separate actuating members
14.
ELECTRIC VALVE CONTROL DEVICE AND ELECTRIC VALVE DEVICE
[Problem] To provide an electric valve control device and an electric valve device which can relatively easily detect that the rotation of a magnet rotor has been regulated. [Solution] This electric valve control device controls an electric valve. The electric valve has a first magnetic sensor 91 and a second magnetic sensor 92. Output signals of the first magnetic sensor 91 and second magnetic sensor 92 are binary signals. When the total number of a plurality of N-poles and a plurality of S-poles of the magnet rotor 31 is noted as n, a natural number is denoted as N, an angle between a line M1 connecting an axis line L and the first magnetic sensor 91 and a line M2 connecting an axis line L and the second magnetic sensor 92 is denoted as θ, the following equation (1) is satisfied. (1) θ=(360/n)×N＋(360/2n) The electric valve control device detects the regulation of rotation of the magnet rotor 31 on the basis of the output signals and expectation value information about the output signals.
F16K 31/04 - Operating means; Releasing devices magnetic using a motor
H02K 37/14 - Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets with magnets rotating within the armatures
F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
This electrically driven valve comprises: a valve main body 13 that has a main valve chamber 14 and a pilot valve chamber 22 inside, has an inflow port 15 and an outflow port 16 for a refrigerant, and has a main valve seat 17 formed at the end part of the outflow port on the main valve chamber side; a main valve body 18 that moves forward and backward with respect to the main valve seat to open and close the outflow port; a valve-opening spring 21 that biases the main valve body in the valve-opening direction; a pilot passage 19 passing through the main valve body and providing selective communication between the main valve chamber and the pilot valve chamber; a pressure equalizing path 20 that provides communication between the main valve chamber and the pilot valve chamber; a pilot valve seat 23 formed at the end part of the pilot passage on the pilot valve chamber side; a pilot valve body 24 that moves forward and backward with respect to the pilot valve seat to open and close the pilot passage; and an electrical driving device 41 that drives the pilot valve body. The outflow port is formed so as to be open to the side surface part of the main valve chamber. The valve-opening spring is provided such that the lower end of the valve-opening spring is located higher than the lower end of the inflow port.
[Problem] To provide a motor-operated valve control device and a motor-operated valve device that can suppress malfunction of a motor-operated valve at low temperatures. [Solution] A motor-operated valve control device (100) acquires a temperature (K) on the basis of a signal from a temperature sensor (126) that is arranged outside of a can (20) and transitions to a preparation mode when the temperature (K) is below a reference temperature (Kr). In the preparation mode, when a magnet rotor (31) does not rotate normally, the motor-operated valve control device (100) performs a heat generation operation to make a stator (60) generate heat until the magnet rotor (31) rotates normally. When the magnet rotor (31) has rotated normally, the motor-operated valve control device (100) transitions to a standby mode.
This drain pump comprises: a rotary blade; a bottom cover (cover); a housing that forms, together with the bottom cover, a pump chamber for accommodating the rotary blade, and that is coupled, through snap-fit, to the bottom cover in the axial direction X of the rotary blade; an annular O ring (seal component); and an accommodation part that is formed by the bottom cover and the housing outside of the pump chamber in the radial direction R of the rotary blade, and that accommodates the O ring, wherein the accommodation part has a conical inner surface, an outer peripheral surface, and a lower surface (pressing part) that press the O ring in the axial direction X and the radial direction R.
This flow path switching valve comprises: a valve body in which a valve chamber is formed; a valve member disposed in the valve chamber; an annular sheet member that is positioned between the valve member and the inlet/outlet of the valve body such that a side surface on the reverse side from the valve member side contacts a wall surface of the valve body, and the outer peripheral surface is separated from the valve body; an inclined seal surface which is formed on the sheet member, is inclined at a fixed angle θ relative to an axis, and is contacted by the outer peripheral surface of the valve member; an O-ring that is compressed and accommodated in an O-ring groove provided in the wall surface of the valve body; and a rotation driving unit that rotates the valve member, wherein the value of the angle θ is determined such that the pressing force between the valve member and sheet member at the minimum temperature during use and the pressing force between the valve body and the sheet member at the maximum temperature during use do not vary.
F16K 5/06 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
[Problem] To provide an electric valve that makes it possible to omit a stopper provided to a magnet rotor and stop rotation of the magnet rotor when movement of a valve body is stopped. [Solution] An electric valve 1 has: a valve main body 10 having a valve port 15 and a valve seat 16 surrounding the valve port 15; a valve body 40 facing the valve port 15; a valve shaft 34; and a stepping motor 66. The valve shaft 34 has a male thread 34c formed therein. The valve main body 10 has formed therein a female thread 13c to which the male thread 34c is threaded. The male thread 34c and the female thread 13c constitute a feed screw mechanism 33. The valve shaft 34 is coaxially fixed to the magnet rotor 31 of the stepping motor 66. The lower end of the valve shaft 34 is connected with the valve body 40. The valve body 40 is moved toward the valve port 15 when the magnet rotor 31 rotates in a valve closing direction. Movement of the valve body 40 toward the valve port 15 is restricted when the valve body 40 is brought into contact with the valve seat 16.
Provided are a control device for a motor-operated valve, a motor-operated valve, and a motor-operated valve unit using the same capable of performing appropriate flow rate control by changing the control of a stepping motor according to the amount of hysteresis. The present invention comprises a valve body capable of moving in a direction toward or away from a valve seat, a stepping motor that operates by inputting a drive pulse, a drive mechanism that drives the valve body by using the drive force output from the stepping motor, a non-volatile storage unit that stores the amount of hysteresis, and a control unit that drives the stepping motor according to operation instruction information input from outside. When moving the valve body in a direction different from the last movement direction on the basis of the operation instruction information input from outside, the control unit inputs, to the stepping motor, a number of drive pulses equal to the effective number of pulses obtained by adding the number of pulses corresponding to the amount of hysteresis stored in the storage unit to the target number of pulses corresponding to the target movement amount of the valve body.
F16K 31/04 - Operating means; Releasing devices magnetic using a motor
F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
F25B 41/35 - Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators by rotary motors, e.g. by stepping motors
21.
MOTOR-OPERATED VALVE AND METHOD FOR ACQUIRING VALVE BODY POSITION OF MOTOR-OPERATED VALVE
[Problem] To provide a motor-operated valve with which variation in the rear of a throttle flow path can be minimized and the desired flow rate characteristics can be obtained. [Solution] A valve body 40 of a motor-operated valve 1 has a control unit 45 having a single tapered shape. The valve body 40 is driven in a movement section between a closed position Pa and a fully open position Pz by the rotation of a stepping motor 66. When the valve body 40 is in the closed position Pa, a control surface 46, which is the outer peripheral surface of the control unit 45, is in contact with a valve seat 16. When the valve body 40 has moved from the closed position Pa and is in the movement section, a throttle flow path is formed between the valve seat 16 and the control surface 46. The movement section includes a first section between the closed position Pa and a first position, and a second section between the first position and a second position. A control device 80 makes the step angle when the valve body 40 is in the first section smaller than the step angle when the valve body 40 is in the second section.
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
Clack valves [parts of machines]; Control valves for regulating the flow of gases and liquids [parts of machines]; Motorized valves; Motor operated valves with control apparatus; Differential pressure valves [parts of machines]; Parts and fittings of valves [parts of machines]; Pressure regulating valves; Pressure regulating valves being parts of machines; Pressure switches being parts of machines; Pump control valves; Valves; Valves [parts of machines]; Valves as machine components; Valves operated automatically by hydraulic control; Valves operated automatically by pneumatic control; Valves used for plumbing of air-conditioning apparatus; Valves used for plumbing of air conditioners; Valves used for plumbing of freezing machines and apparatus; Valves for freezing installations [parts of machines]; Valves used for plumbing of water heaters; Channel switching valves [parts of machines]; Flow regulating valves [parts of machines]; Electronic expansion valves [parts of machines]; Automatic control valves [parts of machines]; Ball valves being parts of machines. Computer programs; Computer software [programs]; Electrical and electronic control apparatus and instruments; Electronic control apparatus for automatic machines; Electronic control apparatus for industrial machines; Electronic control apparatus for valves; Power distribution or control machines and apparatus; Solenoid valves [electromagnetic switches]; Telecommunication machines and apparatus; Control apparatus for valves used for air conditioning installations; Control apparatus for valves used for freezing installations; Computer programs for control apparatus used for valves of air-conditioning installations (including downloadable); Computer programs for control apparatus used for valves of freezing installations (including downloadable). Parts and fittings of air conditioners for industrial purposes; Air conditioners for industrial purposes; Air conditioners for vehicles; Parts and fittings of air conditioners for automobiles; Expansion valves for air-conditioning apparatus of automobiles and vehicles; Air cooling apparatus; Air-conditioning apparatus; Room air conditioning apparatus and their parts and fittings; Expansion valves for air-conditioning apparatus; Cooling installations and machines; Freezing machines and apparatus; Freezing machines and apparatus for industrial purposes; Industrial freezing machines and apparatus and their parts; Refrigerating apparatus and machines; Refrigerating appliances and installations; Refrigerating machines; Refrigerating machines for industrial purposes; Expansion valves for refrigerating or freezing machines; Room air conditioners; Thermostatic radiator valves; Valves [plumbing fittings]; Valves for air conditioners; Freezing installations; Water heaters.
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
Clack valves [parts of machines]; Control valves for regulating the flow of gases and liquids [parts of machines]; Motorized valves; Motor operated valves with control apparatus; Differential pressure valves [parts of machines]; Parts and fittings of valves [parts of machines]; Pressure regulating valves; Pressure regulating valves being parts of machines; Pressure switches being parts of machines; Pump control valves; Valves; Valves [parts of machines]; Valves as machine components; Valves operated automatically by hydraulic control; Valves operated automatically by pneumatic control; Valves used for plumbing of air-conditioning apparatus; Valves used for plumbing of air conditioners; Valves used for plumbing of freezing machines and apparatus; Valves for freezing installations [parts of machines]; Valves used for plumbing of water heaters; Channel switching valves [parts of machines]; Flow regulating valves [parts of machines]; Electronic expansion valves [parts of machines]; Automatic control valves [parts of machines]; Ball valves being parts of machines. Computer programs; Computer software [programs]; Electrical and electronic control apparatus and instruments; Electronic control apparatus for automatic machines; Electronic control apparatus for industrial machines; Electronic control apparatus for valves; Power distribution or control machines and apparatus; Solenoid valves [electromagnetic switches]; Telecommunication machines and apparatus; Control apparatus for valves used for air conditioning installations; Control apparatus for valves used for freezing installations; Computer programs for control apparatus used for valves of air-conditioning installations (including downloadable); Computer programs for control apparatus used for valves of freezing installations (including downloadable). Parts and fittings of air conditioners for industrial purposes; Air conditioners for industrial purposes; Air conditioners for vehicles; Parts and fittings of air conditioners for automobiles; Expansion valves for air-conditioning apparatus of automobiles and vehicles; Air cooling apparatus; Air-conditioning apparatus; Room air conditioning apparatus and their parts and fittings; Expansion valves for air-conditioning apparatus; Cooling installations and machines; Freezing machines and apparatus; Freezing machines and apparatus for industrial purposes; Industrial freezing machines and apparatus and their parts; Refrigerating apparatus and machines; Refrigerating appliances and installations; Refrigerating machines; Refrigerating machines for industrial purposes; Expansion valves for refrigerating or freezing machines; Room air conditioners; Thermostatic radiator valves; Valves [plumbing fittings]; Valves for air conditioners; freezing installations; water heaters.
Provided is an electromagnetic valve comprising: a valve main body in which an inflow opening and an outflow opening for fluid are formed and a main valve seat and a main valve chamber are formed between the inflow opening and the outflow opening; a main valve body which is arranged in the main valve chamber and can come in contact with and can separate from the main valve seat; a plunger which is arranged in the valve main body and moves the main valve body in a direction in which the main valve body comes in contact with and separates from the main valve seat; a solenoid which is formed by winding a coil for driving the plunger; a magnet which is mounted to the plunger; and a magnetic sensor which is provided to the valve main body and detects magnetic flux density of the magnet.
F16K 31/06 - Operating means; Releasing devices magnetic using a magnet
F16K 31/40 - Operating means; Releasing devices actuated by fluid in which fluid from the conduit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
The present invention performs calibration of the rotation range of a valve member. A flow path switching valve (10) comprises: a valve body (14) in which a valve chamber (12) is formed and that has a plurality of fluid inlet and outlet ports (24, 26, 28) formed in a wall surface forming the valve chamber (12); a valve member (16) that has a valve shaft (48), is rotatably disposed in the valve chamber (12), and is formed with a flow path (36); a sealing part (38) that is disposed to surround the peripheries of openings (36A, 36B) of the flow path (36) of the valve member (16), and seals between the inlet and outlet ports (24, 26, 28) and the valve member (16) in a state in which the openings (36A, 36B) and the inlet and outlet ports (24, 26, 28) face each other; and a rotary drive unit (18) that rotates the valve member (16) by means of the valve shaft (48) so as to selectively switch the communication state of the plurality of inlet and outlet ports through the flow path (36) of the valve member (16), and that is capable of detecting the angular position of the valve member (16). Stoppers (44, 46) that restrict further rotation of the valve member at at least one of the upper limit and lower limit of the rotation range of the valve disc are provided inside the valve body (14).
F16K 11/085 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
A flow path switching valve comprises: a valve body which has a valve chamber formed therein and which has inlet/outlet ports formed in an interior wall (wall surface) that forms the valve chamber; a valve element which is rotatably disposed within the valve chamber and which has formed therein a flow path having a plurality of openings that are provided to an outer peripheral surface facing the wall surface; a sealing part which is disposed to encircle the circumference of the openings of the flow path in the valve element and which provides sealing between the inlet/outlet ports and the valve element in a state the openings and the inlet/outlet ports are positioned to face each other; and a rotary drive unit which rotates the valve element via a valve shaft to allow the connection state of the inlet/outlet ports to be switched selectively through the flow path of the valve element and which can detect the angular position of the valve element. This flow path switching valve has a mode in which the openings of the valve element are sealed simultaneously by the wall surface and the flow of fluid in the flow path is brought to a halt.
F16K 11/085 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
F16K 11/087 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug
27.
MOTORIZED VALVE CONTROL DEVICE, MOTORIZED VALVE DEVICE, AND METHOD FOR CONTROLLING MOTORIZED VALVE
[Problem] To provide a motorized valve control device capable of determining whether a rotor can rotate normally within an appropriate rotation range. [Solution] The motorized valve control device 90 (1) inputs a pulse P to a stepping motor 80 to cause a rotor 81 to rotate in a second direction, (2) when a motorized valve 5 enters a second direction rotation restricted state Sr2, inputs the pulse P to the stepping motor 80 to cause the rotor 81 to rotate in a first direction, (3) when the motorized valve 5 enters a first direction rotation restricted state Sr1 while rotating the rotor 81 in the first direction, acquires the number of pulses (input number Xi) input to the stepping motor 80 during the period from the second direction rotation restricted state Sr2 to the first direction rotation restricted state Sr1, (4) when the input number Xi is greater than or equal to a design number Xd and less than or equal to an upper limit number Xu, determines that the rotor 81 can rotate normally, and (5) when the input number Xi is less than the design number Xd or when the input number Xi is greater than the upper limit number Xu, determines that the rotor 81 cannot rotate normally.
A pump comprising: a pump chamber 13 having a suction port P11 and a plurality of discharge ports P21 and P22; an electric motor 41 capable of forward and reverse rotation; an impeller 21 provided in the pump chamber and driven by the electric motor; and a switching valve 31 that is rotated by the electric motor via the impeller and has a valve body 32 that opens and closes the discharge ports, wherein the valve body has a plurality of shielding wall portions that close the discharge ports and a plurality of opening portions that open the discharge ports, the shielding wall portions and the opening portions are arranged so as to surround the impeller and set alternately in array in a circumferential direction of the valve body so that the discharge ports can be opened or closed depending on the rotational position of the valve body, the discharge ports are formed on an inner peripheral surface 13a of the pump chamber along an outer peripheral surface of the valve body, and the pump includes a one-way rotation transmission mechanism 51 that is interposed between the impeller and the switching valve, transmits the rotational force in a second direction from the impeller to the switching valve but does not transmit the rotational force in a first direction from the impeller to the switching valve.
[Problem] To provide a motorized valve control device and a motorized valve device capable of suppressing noise by shortening the time required for the initialization operation of the motorized valve. [Solution] A motorized valve control device 90 (1) starts inputting a pulse P to a stepping motor 66 to rotate a rotor 41 in the first direction, (2) every time the pulse P is input to the stepping motor 66, acquires the rotation angle of the rotor 41 on the basis of a rotation angle signal Sa and acquires the position of the rotor 41 on the basis of a magnetic flux density signal Sm, and (3) when the change in the rotation angle of rotor 41 matches change pattern information J and the position of the rotor 41 coincides with a proximity position Rk or a position closer to a reference position Rx than the proximity position Rk, stops the input of the pulse P to the stepping motor 66. Furthermore, the change pattern information J includes a change in rotation angle indicating rotation in the second direction.
Provided is an expansion valve that makes it possible to further reduce weight and costs even when, for example, the same materials as those used in the prior art are used. The expansion valve comprises: a valve main body equipped with a valve seat within a valve chamber; a valve body that prevents the passage of a fluid as a result of being seated on the valve seat and allows the passage of the fluid as a result of being separated from the valve seat; an insertion section; and a flange protruding in a direction orthogonal to an axis with respect to the insertion section. The expansion valve also includes a valve body support connected to the valve body, a coil spring that has the insertion section inserted therein and biases the valve body toward the valve seat via the valve body support, and an anti-vibration member sandwiched between the flange and the coil spring. The anti-vibration member comprises a base section including an opening through which the insertion section passes, and a plurality of leg pieces extending from the base section and in contact with the inner wall of the valve chamber. At least one of the outer circumference of the insertion section and the inner circumference of the opening is non-circular in a cross section orthogonal to the axis of the valve body support, and the outer circumference of the insertion section and the inner circumference of the opening are in contact at three or more points along the circumferential direction.
F25B 41/335 - Expansion valves with the valve member being actuated by the fluid pressure, e.g. by the pressure of the refrigerant via diaphragms
F16K 31/68 - Operating means; Releasing devices responsive to temperature variation actuated by fluid pressure or volumetric variation in a confined chamber
This pump comprising: a pump chamber 14 having a suction port 15, a first discharge port 16 and a second discharge port 17; an impeller 18 that generates a rotating flow; and a switching valve 21 that has a first valve cover 23 and a second valve cover 24 and discharges fluid from the first discharge port or the second discharge port depending on the direction of the rotating flow, the switching valve being in a first switching state in which the first valve cover closes the first discharge port and the second valve cover opens the second discharge port when the rotating flow is in the first direction, or in a second switching state in which the second valve cover closes the second discharge port and the first valve cover opens the first discharge port when the rotating flow is in the second direction, wherein the switching valve has a first contact means 25 for coming into contact with the impeller and receiving a force from the impeller that causes return to the first switching state when the switching valve in the first switching state swings toward the second switching state, and a second contact means 26 for coming into contact with the impeller and receiving a force from the impeller that causes return to the second switching state when the switching valve in the second switching state swings toward the first switching state.
This flow path switch valve comprises: a valve body having inlet/outlet openings formed in a pair of a left first wall and a right first wall that oppose each other across a valve chamber formed inside the valve body; a ball-shaped valve body disposed inside the valve chamber; a ring-shaped sheet member that is disposed between the valve body and the inlet/outlet openings, and also between the left first wall and the right first wall of the valve chamber opposing an outer peripheral section; an O-ring that presses the sheet member against the valve body; a rotational drive unit that rotates the valve body; and an inclined sealing surface that is formed in the sheet member, that is inclined at a constant angle θ to an axial line, and with which the outer peripheral surface of the valve body is in contact. The value of the angle θ is set such that the compression rate of the O-ring at the minimum temperature and the compression rate of the O-ring at the maximum temperature do not change.
F16K 5/06 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
F16K 11/08 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only taps or cocks
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
Valves used for plumbing of air-conditioning apparatus; valves used for plumbing of air conditioners; valves used for plumbing of freezing machines and apparatus; valves used for plumbing of water heaters; channel switching valves; flow regulating valves; electronic expansion valves; automatic control valves; Ball valves, machine elements not for land vehicles; motor operated valves, machine elements not for land vehicles; motor operated valves with control apparatus; pressure regulating valves; differential pressure valves; clack valves; valves for freezing installations; parts and fittings of valves Control apparatus for valves used for air conditioning installations; control apparatus for valves used for freezing installations; computer programs for control apparatus used for valves of air-conditioning installations, including downloadable; computer programs for control apparatus used for valves of freezing installations, including downloadable; solenoid valves, electromagnetic switches Parts and fittings of air conditioners for industrial purposes; parts and fittings of air conditioners for automobiles; industrial freezing machines and apparatus and their parts; expansion valves for air-conditioning apparatus of automobiles and vehicles; expansion valves for air-conditioning apparatus; expansion valves for refrigerating or freezing machines; parts used for plumbing of air-conditioning apparatus and industrial air conditioners; room air conditioning apparatus and their parts and fittings
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
Valves used for plumbing of air-conditioning apparatus; valves used for plumbing of air conditioners; valves used for plumbing of freezing machines and apparatus; valves used for plumbing of water heaters; channel switching valves; flow regulating valves; electronic expansion valves; automatic control valves; Ball valves, machine elements not for land vehicles; motor operated valves, machine elements not for land vehicles; motor operated valves with control apparatus; pressure regulating valves; differential pressure valves; clack valves; valves for freezing installations; parts and fittings of valves Control apparatus for valves used for air conditioning installations; control apparatus for valves used for freezing installations; computer programs for control apparatus used for valves of air-conditioning installations, including downloadable; computer programs for control apparatus used for valves of freezing installations, including downloadable; solenoid valves, electromagnetic switches Parts and fittings of air conditioners for industrial purposes; parts and fittings of air conditioners for automobiles; industrial freezing machines and apparatus and their parts; expansion valves for air-conditioning apparatus of automobiles and vehicles; expansion valves for air-conditioning apparatus; expansion valves for refrigerating or freezing machines; parts used for plumbing of air-conditioning apparatus and industrial air conditioners; room air conditioning apparatus and their parts and fittings
The present invention addresses the problem of ensuring valve performance and enabling easy arrangement of a valve body and a sealing part in a flow passage switching valve having a valve body in which four flow passage openings are formed in the same plane. In a flow passage switching valve (10), a valve body (16) and sealing parts (18) can be arranged in a valve chamber (12) from an opening (12U). On the outer surface of the valve body (16), a pair of planar sections (16U, 16L) are formed such that a portion (16L) which opposes a bottom plate (12E) constituting the valve chamber (12) and a portion (16U) positioned on the side opposite the abovementioned portion in the diameter direction of a spherical surface are parallel to each other. The outer dimension of the valve body in a direction different from a direction of a two-surface width (T), which is the minimum distance between the planar sections (16U, 16L), is greater than the two-surface width (T) and is equal to or less than the diameter of the spherical surface. The two-surface width (T) is less than a separation distance (K) between the opposing sealing parts, and equal to the outer dimension of the valve body in the direction of the two-surface width (T).
F16K 27/00 - Construction of housings; Use of materials therefor
F16K 27/06 - Construction of housings; Use of materials therefor of taps or cocks
F16K 11/087 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug
According to the present invention, three flow path ports are each formed in respective side walls of a valve main body. Sealing parts disposed so as to surround the flow path ports seal spaces between the side walls and the outer surface of the valve body. The outer surface of the valve body, which rotates, is in contact with the entire circumference of at least one of the sealing parts.
F16K 5/06 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
F16K 11/08 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only taps or cocks
According to the present invention, when a valve body is tilted by 90 [degrees] with respect to the use state so that the lower surface portion of the valve body faces a side wall of a main valve body, a gap into which a sealing portion can be inserted is formed between the side wall and the lower surface portion. The sealing portion is inserted into said gap. Then, the valve body is sequentially caused to face the other side walls.
F16K 11/087 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug
F16K 27/06 - Construction of housings; Use of materials therefor of taps or cocks
To provide a drainage pump capable of reducing the amount of drain water remaining in a drain pan. A drainage pump includes a housing, an impeller housed in the housing, and a motor with a drive shaft connected to the impeller. The housing includes a suction pipe in a cylindrical shape extending in an up-and-down direction. A suction port facing downward and a concave surface in an annular shape around the suction port are disposed at a lower end of the suction pipe.
This flow path switch valve comprises a valve main body inside of which a valve chamber is formed and in which inlet/outlets for fluid are formed in a wall surface forming the valve chamber, a valve body which is rotatably disposed in the valve chamber and in which a flow path is formed, a sealing part which is disposed between the valve body and the inlet/outlet and which creates a seal between the valve body and the inlet/outlet, a rotation-driving unit that causes the valve body to rotate by means of a valve shaft so that the communication state of a plurality of the inlet/outlets is selectively switched through the flow path of the valve body and that can detect the angle position of the valve shaft, and a stopper that restricts further rotation of the valve shaft at the upper limit and/or the lower limit of the rotation range of the valve body.
F16K 5/06 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
F16K 11/085 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
F16K 11/087 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
Clack valves [parts of machines]; Control valves for regulating the flow of gases and liquids [parts of machines]; Motorised valves; Motor operated valves with control apparatus; Differential pressure valves [parts of machines]; Parts and fittings of valves [parts of machines]; Pressure regulating valves; Pressure regulating valves being parts of machines; Pressure switches being parts of machines; Pump control valves; Valves; Valves [parts of machines]; Valves as machine components; Valves operated automatically by hydraulic control; Valves operated automatically by pneumatic control; Valves used for plumbing of air-conditioning apparatus; Valves used for plumbing of air conditioners; Valves used for plumbing of freezing machines and apparatus; Valves for freezing installations [parts of machines]; Valves used for plumbing of water heaters; Channel switching valves [parts of machines]; Flow regulating valves [parts of machines]; Electronic expansion valves [parts of machines]; Automatic control valves [parts of machines]. Computer programs; Computer software [programs]; Electrical and electronic control apparatus and instruments; Electronic control apparatus for automatic machines; Electronic control apparatus for industrial machines; Electronic control apparatus for valves; Phase modifiers; Power distribution or control machines and apparatus; Rotary converters; Solenoid valves [electromagnetic switches]; Telecommunication machines and apparatus; Control apparatus for valves used for air conditioning installations; Control apparatus for valves used for freezing installations; Computer programs for control apparatus used for valves of air-conditioning installations (including downloadable); Computer programs for control apparatus used for valves of freezing installations (including downloadable). Air conditioners for industrial purposes; Air conditioners for vehicles; Parts and fittings of air conditioners for automobiles; Expansion valves for air-conditioning apparatus of automobiles and vehicles; Air cooling apparatus; Air-conditioning apparatus; Room air conditioning apparatus and their parts and fittings; Expansion valves for air-conditioning apparatus; Cooling installations and machines; Freezing machines and apparatus; Freezing machines and apparatus for industrial purposes; Industrial freezing machines and apparatus and their parts; Refrigerating apparatus and machines; Refrigerating appliances and installations; Refrigerating machines; Refrigerating machines for industrial purposes; Expansion valves for refrigerating or freezing machines; Room air conditioners; Thermostatic radiator valves; Valves [plumbing fittings]; Valves for air conditioners; Parts and fittings of air conditioners for industrial purposes; Freezing installations; Water heaters.
[Problem] To provide an electric valve that is capable of reducing variations in the number of valve-opening pulses. [Solution] An electric valve 1 having a plurality of positions (hereinafter referred to as "stator unit attachment positions"), on a stator unit 7, that attach to a valve body assembly 5A. When the step angle of a stepping motor 66 is denoted by θ, the number of excitation patterns of the stepping motor 66 is denoted by M, the number of the stator unit attachment positions is denoted by K, and an integer is denoted by U, the angle dα[j] around an axis between a jth (j = 1, 2, …, K-1) stator unit attachment position and a j+1th stator unit attachment position is a multiple of the step angle θ and satisfies expression (1) below. (1) dα[j] ≠ M×θ×U
[Problem] To provide an electric valve control device and an electric valve device with which any increase in the internal temperature of a motor driver can be minimized. [Solution] When a computer 80 of an electric valve control device 70 receives a valve opening degree change command including a target valve opening degree for an electric valve 5, the computer 80 acquires a target number, which is the number of pulses to be inputted to a motor driver 77 in order to set the valve opening degree of the electric valve 5 to the target valve opening degree. When it is assessed that the temperature surrounding the motor driver 77 is not high, the computer 80 continuously inputs the target number of pulses to the motor driver 77. When it is assessed that the surrounding temperature is high, the computer 80 continuously inputs a unit number of pulses at a time to the motor driver 77 until the number of pulses inputted to the motor driver 77 reaches the target number, and the computer 80 provides a pulse input pause period each time the unit number of pulses are inputted.
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
valves used for plumbing of air-conditioning apparatus; valves used for plumbing of air conditioners; valves used for plumbing of freezing machines and apparatus; valves used for plumbing of water heaters; channel switching valves, (parts of machines); flow regulating valves, (parts of machines); electronic expansion valves, (parts of machines); automatic control valves, (parts of machines); motor operated valves, machine elements not for land vehicles; motor operated valves with control apparatus; pressure regulating valves, (parts of machines); differential pressure valves, (parts of machines); clack valves, (parts of machines); valves for freezing installations, (parts of machines); parts and fittings of valves,(parts of machines) control apparatus for valves used for air conditioning installations; control apparatus for valves used for freezing installations; computer programs for control apparatus used for valves of air-conditioning installations, (including downloadable); computer programs for control apparatus used for valves of freezing installations, (including downloadable); solenoid valves, (electromagnetic switches) parts and fittings of air conditioners for industrial purposes; parts and fittings of air conditioners for automobiles; industrial freezing machines and apparatus and their parts; expansion valves for air-conditioning apparatus of automobiles and vehicles; expansion valves for air-conditioning apparatus; expansion valves for refrigerating or freezing machines; parts used for plumbing of air-conditioning apparatus and industrial air conditioners; room air conditioning apparatus and their parts and fittings
This electric valve comprises: a valve main body having a valve chamber communicating with a refrigerant inflow passage and a refrigerant outflow passage; a valve body that moves forward and backward in relation to a valve seat formed in the valve chamber, between a closed state of being seated on the valve seat and an open state of being separated from the valve seat, thereby changing the flow rate of the refrigerant; an electric motor 23 that drives the valve body; a control substrate on which electronic components for controlling the electric motor are mounted; a substrate-housing portion 43 capable of housing the control substrate in a sealed state; an external connection terminal 45 for establishing electrical connection with the exterior; and a connector portion 44 that supports the external connection terminal inside and has a sealed structure that is sealed by fitting with a mating connector. The electric valve also has a communication path 51 that allows communication between the substrate-housing portion and the connector portion, and the substrate-housing portion becomes sealed when the mating connector is fitted into the connector portion.
[Problem] To provide an electric valve control device and an electric valve device with which an electric valve can be returned from a lock state to a normal state. [Solution] An electric valve control device 70 has a computer for controlling a stepping motor of an electric valve 5. Upon detection of stepping out of the stepping motor during control of the stepping motor such that a rotor 41 rotates in a first direction so as to change the valve opening degree of the electric valve 5, the computer controls the stepping motor such that the rotor 41 rotates in a second direction, which is opposite to the first direction.
F16K 31/04 - Operating means; Releasing devices magnetic using a motor
F25B 41/35 - Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators by rotary motors, e.g. by stepping motors
Provided is a drainage pump that can inhibit the propagation of vibrations while being easy to attach without increasing the number of components. This drainage pump has a case accommodating a rotary blade and a motor that rotationally drives the rotary blade, wherein: the case has a plurality of legs protruding along the rotational axis direction of the rotary blade; the legs have a leg body fixed to a mounting part, and a plurality of plate-shaped parts connecting the leg body and the case.; and when viewed through a space between the plate-shaped parts, a first gap is formed between the case and the leg body.
A motor-operated valve comprises a valve body 12 having a valve chamber 13 communicating with a refrigerant inflow passage 16 and a refrigerant outflow passage 15, a valve element 17 that moves back and forth with respect to a valve seat 14 formed in the valve chamber to change the refrigerant flow rate, an electric motor 23 that drives the valve element, a board 46 that controls an electric motor, and a board accommodating portion including a case 43 that accommodates the board, wherein the board has a fixing hole for fixing the board in the case, the case has a supporting projection inserted into the fixing hole to support the board in the case, and the supporting projection is formed integrally with a case portion. It is preferable that the supporting projection have a stepped portion 57 and the board be sandwiched between the stepped portion and a pressing projection 61 provided on a back surface of a lid 47 that closes the case.
Provided are an electric valve control device and an electric valve device that are capable of suppressing an excess of the position of a rotor of a motor from a position corresponding to the maximum opening degree of an electric valve. An electric valve device (1) has an electric valve (5) and an electric valve control device (70). The electric valve (5) has a stepper motor (66). The electric valve control device (70) controls the electric valve (5). The electric valve control device (70) has current valve opening degree information indicating the current valve opening degree of the electric valve (5), and changes the valve opening degree of the electric valve (5) within a range from the minimum opening degree to the maximum opening degree on the basis of the current valve opening degree information. Upon detection of an abnormality in the electric valve (5), the electric valve control device (70) sets the maximum opening degree to the current valve opening degree information.
F16K 31/04 - Operating means; Releasing devices magnetic using a motor
F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
An electric valve 11 comprising: a main valve body 12 having a valve chamber 13 that communicates with an inflow passage 15 for introducing a refrigerant and an outflow passage 16 for discharging the refrigerant; a valve body 17 that changes the flow rate of the refrigerant by advancing and retreating with respect to a valve seat 14 formed in the valve chamber between a closed state in which the valve body is seated on the valve seat and an open state in which the valve body is apart from the valve seat; and an electric motor 45 that drives the valve body. The electric motor has: a stator 46 including a coil 49 that is supplied with a current to generate a magnetic force; and a magnet rotor 36 that is disposed on the inner side of the stator and rotates by receiving the magnetic force generated by the coil. The electric valve further comprises a magnetic sensor 62 that detects the magnetic force of the magnet rotor. In the electric valve, a magnetic shield member (made from, for example, a soft magnetic material) 61 is provided so as to be interposed between the magnetic sensor and the coil.
[Problem] To provide a valve device capable of suppressing leakage of a refrigerant, a decrease in cooling efficiency, and noise caused by a flow of the refrigerant. [Solution] A valve device 5 is used in an air conditioning apparatus 1. The valve device 5 has: one valve body 100 having a plurality of refrigerant passages; and a plurality of valve units mounted to the valve body 100. The plurality of refrigerant passages include: a high-temperature refrigerant passage in which a high-temperature refrigerant flows; an intermediate-temperature refrigerant passage in which an intermediate-temperature refrigerant, the temperature of which is lower than that of the high-temperature refrigerant, flows; and a low-temperature refrigerant passage in which a low-temperature refrigerant, the temperature of which is lower than that of the intermediate-temperature refrigerant, flows.
[Problem] To provide: a motorized valve device and a motorized valve control device that can shorten the time taken up by the action of initializing a motorized valve to curb any noise; and a method for controlling the motorized valve [Solution] A motorized valve control device 70 supplies a drive current to a stator 60 to cause a rotor 41 to rotate in the first direction. The motorized valve control device 70 acquires a voltage produced in the stator 60 due to the rotation of the rotor 41. The motorized valve control device 70 determines whether a motorized valve 5 is in a regulated rotation state in which a stopper mechanism 49 regulates rotation of the rotor 41 in the first direction on the basis of at least one from among the area of a voltage waveform, the amplitude of waves periodically observed in the waveform of the voltage, and the periodic appearance of new waves different from the waves periodically observed in the waveform of the voltage.
[Problem] To provide an electric valve control device, an electric valve device, and a method for controlling an electric valve which allow reduction in time required for the initialization operation of an electric valve and suppression of noise. [Solution] An electric valve control device 70 inputs a pulse to a stepper motor 66 to rotate a rotor 41 in a first direction. The electric valve control device 70 acquires a voltage generated in a stator 60 by the rotation of the rotor 41. The electric valve control device 70 then determines, on the basis of the degree of difference between the waveform of the voltage and a voltage reference waveform, whether or not an electric valve 5 is in a first rotation-regulated state in which the rotation of the rotor 41 in the first direction is regulated.
Provided is an electric valve which enables employment of a large valve diameter while ensuring durability of the electric valve. An electric valve (1) comprises a main valve body (10) having a valve port (14), a valve body (40) facing the valve port (14), a rotor (51) rotatable with respect to the main valve body (10), and a drive shaft (70) to which the rotation of the rotor (51) is transmitted. When the rotation of the rotor (51) is transmitted to the drive shaft (70), the drive shaft (70) moves downward or upward. The drive shaft (70) pushes the valve body (40) when the drive shaft (70) moves downward and pulls the valve body (40) when the drive shaft (70) moves upward and can rotate relatively with respect to the valve body (40).
A pressure regulating valve (11) comprising: a valve main body (12) having a valve chamber (13) that communicates with a refrigerant inflow passage (14) and a refrigerant outflow passage (15); a valve body (17) that changes the flow rate of a refrigerant by advancing to and retreating from a valve seat (16) formed in the valve chamber (13) between a closed state of being seated on the valve seat (16) and an open state of being spaced apart from the valve seat (16); a pressure-sensitive member (21) which biases the valve body (17) toward the valve seat (16) and which expands and contracts according to a pressure received by the valve body (17) from the refrigerant flowing in from the inflow passage (14) to thereby allow the advancement and retreat of the valve body (17); an adjustment means (24) for adjusting a biasing force applied by the pressure-sensitive member (21) to the valve body (17); and an actuator (such as stepper motor) (40) that drives the adjustment means (24). It is preferred for the adjustment means (24) to comprise a stopper member (29) that can stop the movement of an adjustment member caused by the actuator (40) and can serve as a start point for setting the biasing force.
Provided is an accumulator with excellent ease of assembly and capable of ensuring the functionality of a refrigerating cycle even when subjected to vibration. This accumulator comprises: a body; a pipe disposed inside the body; a hook portion that extends from the outer periphery of the pipe; and a desiccant container equipped with two bag portions that contain a desiccant and a connection portion that connects the bag portions to each other. The desiccant container is mounted by hooking the connection portion on the hook portion.
Provided is an accumulator which has exceptional assembly properties and with which it is possible to ensure the function of a refrigeration cycle even when vibration is applied. This accumulator has a body, a pipe that is arranged inside the body and eccentrically with respect to the body, a retaining member installed between the pipe and the body, and a bag for accommodating a desiccant, the bag being retained, at the position at which the spacing between the inner peripheral surface of the body and the outer peripheral surface of the pipe is greatest, due to being in contact with the body and the retaining member.
Provided is an accumulator capable of preventing flowing-out of a fluorescent source to the outside even while being able to efficiently conduct elution of a fluorescent agent. This accumulator comprises: a body; a pipe disposed inside the body; and a strainer fitted to the lower end of the pipe. A wafer holding part for holding a wafer impregnated with a fluorescent agent is formed in the outer circumference of the strainer.
Provided is a small-sized valve device that can suppress refrigerant leakage. A valve device (5) has a valve module (10) and a receiver drier (20). The valve module (10) has one valve main body (100) having a plurality of refrigerant passages and a plurality of valve units mounted to the valve main body (100). The receiver drier (20) has a cylindrical-shaped receiver drier main body (210) that can store refrigerant and a lid body (220) joined to the upper end portion of the receiver drier main body (210). Further, the lid body (220) is disposed in contact with the valve main body (100).
F25B 43/00 - Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
F25B 41/20 - Disposition of valves, e.g. of on-off valves or flow control valves
F25B 41/35 - Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators by rotary motors, e.g. by stepping motors
[Problem] To provide an electric valve capable of obtaining a desired flow rate characteristic without depending on the shape of a valve body. [Solution] A control device 200 of an electric valve 1 stores pulse number information relating to pulse numbers sequentially assigned to positions from a closed position to a fully-opened position of a valve body 40 and step angle information relating to step angles that correspond to the pulse numbers, respectively. The control device 200 receives, from a control unit 400, a valve body movement command relating to a movement target position of the valve body 40. The control device 200 acquires the pulse numbers assigned to positions from the current position to the movement target position of the valve body 40. Then, the control device 200 rotates a stepping motor to a step angle corresponding to each of the pulse numbers in the order of the pulse numbers assigned from the current position to the movement target position of the valve body.
Provided are a power element and an expansion valve using same that are capable of suppressing local deformation of a diaphragm while ensuring the transfer efficiency of a refrigerant. A power element includes a diaphragm; an upper lid member that is overlapped on one surface in the vicinity of the outer circumference of the diaphragm and forms a pressure working chamber PO with the diaphragm; a receiving member that is overlapped on another surface in the vicinity of the outer circumference of the diaphragm and forms a refrigerant inflow chamber LS with the diaphragm; and a stopper member housed in the refrigerant inflow chamber LS and in contact with the diaphragm, wherein the diaphragm is displaced within a range from a neutral position to a position displaced from the neutral position toward the upper lid member side.
The present invention provides an electric valve that, while being compact, makes it possible to drive a valve body at a high speed reducing ratio. An electric valve according to the present invention comprises: an output shaft for driving a valve body; a valve body part including a valve chamber for accommodating the valve body; a motor including a stator and a rotor; and deceleration mechanisms for reducing the rotational speed of the rotor and transmitting the reduced rotational speed to the output shaft, wherein the deceleration mechanisms are connected in series and have a plurality of planetary gear reduction mechanisms including at least one paradox planetary gear reduction mechanism.
[Problem] To provide an electric valve that has a small vertical dimension and is capable of accurately detecting the rotation angle of a magnet rotor. [Solution] The electric valve (1) has a permanent magnet (45) that is disposed coaxially with a magnet rotor (41) inside of a can (30). The permanent magnet (45) has a circular outer shape, and rotates with the magnet rotor (41). One N pole is disposed in a first section (45n) and one S pole is disposed in a second section (45s), said sections being demarcated by the diameter of the permanent magnet (45). The magnetization direction of the permanent magnet (45) is orthogonal to the axis (L). An angle sensor (96) that detects the rotation angle of the permanent magnet (45) is aligned with the can (30) in a direction orthogonal to the axis (L).
F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
F16K 31/04 - Operating means; Releasing devices magnetic using a motor
H02K 11/215 - Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
H02K 21/14 - Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
Provided is a motorized valve that has a small height and can accurately detect the rotational angle of a magnet rotor. A magnet rotor (41A) of a motorized valve (1A) has as a unit a first magnetic pole section (41a), a magnetic buffer section (41b), and a second magnetic pole section (41c), which are connected in sequence along the rotational shaft of the magnet rotor. In the first magnetic pole section (41a), disposed are a plurality of N poles and a plurality of S poles that run parallel in alternation circumferentially. In the second magnetic pole section (41c), disposed are a single N pole and a single S pole that run parallel in alternation circumferentially. A stator unit (80) has an angle sensor (96) for detecting the rotational angle of the second magnetic pole section (41c). The material that constitutes the first magnetic pole section (41a) differs from the material that constitutes the second magnetic pole section (41c).
F16K 31/04 - Operating means; Releasing devices magnetic using a motor
H02K 21/14 - Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
H02K 11/215 - Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
Provided are a power element and an expansion valve using same that are capable of suppressing local deformation of a diaphragm or the like while ensuring the transfer efficiency of a refrigerant. A power element includes a diaphragm; an upper lid member that is overlapped on one surface in the vicinity of the outer circumference of the diaphragm and forms a pressure working chamber PO with the diaphragm; a receiving member that is overlapped on another surface in the vicinity of the outer circumference of the diaphragm and forms a refrigerant inflow chamber LS with the diaphragm; and a stopper member housed in the refrigerant inflow chamber LS and in contact with the diaphragm, wherein a plate thickness near a support point of the diaphragm is thicker than a plate thickness at a central portion of the diaphragm.
Provided are a power element and an expansion valve using same that are capable of obtaining a desired temperature/flow rate characteristic while being low cost. A power element includes a diaphragm; an upper lid member that is joined to one side of an outer circumferential portion of the diaphragm and forms a pressure working chamber PO with the diaphragm; an annular support point adjustment member that is joined to another side of an outer circumferential portion of the diaphragm; a receiving member that is joined to the support point adjustment member and forms a refrigerant inflow chamber LS with the diaphragm, and a stopper member housed in the refrigerant inflow chamber LS, wherein the diaphragm is capable of coming into contact with a support point of the support point adjustment member.
[Problem] To provide a stator unit and an electric valve by which it is possible to mitigate the entry of moisture into the internal space of a yoke as well as mitigate disconnections in a coil, and to provide a manufacturing method for the stator unit. [Solution] A stator unit 80 has an A-phase yoke 81A, a B-phase yoke 81B, a first resin part 85-1, and a second resin part 85-2. The A-phase yoke 81A and the B-phase yoke 81B have a plurality of pole teeth. The first resin part 85-1 includes an A-phase yoke filing section 86A present in the internal space of the A-phase yoke 81A, and a B-phase yoke filling section 86B present in the internal space of the B-phase yoke 81B. The second resin part 85-2 includes a seal section 89 present in a space between the plurality of pole teeth. An A-phase bobbin 82A partitions the A-phase yoke filling section 86A from the seal section 89, and a B-phase bobbin 82B partitions the B-phase yoke filling section 86B from the seal section 89.
F16K 31/04 - Operating means; Releasing devices magnetic using a motor
H02K 15/02 - Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
H02K 15/12 - Impregnating, heating or drying of windings, stators, rotors or machines
H02K 37/14 - Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets with magnets rotating within the armatures
A valve device 11 comprising: a valve main body 12 having a valve chamber 13 in an interior thereof; a valve body 21 that has flow path space 22 in an interior thereof and that is rotationally driven in the valve chamber and changes a flow quantity of a fluid; a first flow path hole 14 that is formed in the valve main body and that communicates with the flow path space and allows the passage of the fluid; a second flow path hole 15 that is formed in the valve main body, whose communication state with the flow path space is changed via the rotational displacement position of the valve body, and that allows the passage of the fluid when communicating with the flow path space; and a transmission mechanism including a valve body driving shaft 31 that transmits, to the valve body, driving force for rotating the valve body. The rotation axis of the valve body and the rotation axis of the valve body driving shaft are orthogonal with each other.
F16K 5/06 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
F16K 31/04 - Operating means; Releasing devices magnetic using a motor
F16K 31/53 - Mechanical actuating means with toothed gearing
[Problem] To provide a valve device and an air conditioning device with which leakage of a refrigerant can be suppressed and the number of components can be reduced. [Solution] A valve device 10 has one valve body 100 having a plurality of refrigerant passages, and a plurality of valve units mounted to the valve body 100. The plurality of refrigerant passages include an entrance passage 110 connected to an entrance opening 171 in a front surface 101 of the valve body 100, an exit passage 120 connected to an exit opening 172 in a rear surface 102 of the valve body 100, a refrigerant expansion passage 130 connecting the entrance passage 110 and the exit passage 120, and a bypass passage 140 connecting the entrance passage 110 and the exit passage 120. The plurality of valve units include an expansion valve unit 200 capable of changing the passage area of the refrigerant expansion passage 130, a first opening/closing valve unit 300 capable of opening and closing the refrigerant expansion passage 130, and a second opening/closing valve unit 400 capable of opening and closing the bypass passage 140.
This electric valve includes: a motor; a power transmission mechanism which converts rotational motion produced by the motor into axial direction motion of a valve body; a housing accommodating the motor and at least a portion of the power transmission mechanism; and a control substrate which is provided inside the housing, processes communication with a control device connected to a network, and controls the motor, wherein a non-pattern area where a pattern is not formed is continuously provided from an outer edge of the control substrate to a cut-out (interference avoidance part) for avoiding interface with a pin (other component).
The purpose of the present invention is to increase noise performance of an electric valve having a communication function. An electric valve (10) comprising: a motor (12); a power transmission mechanism (14) for converting rotary motion generated by the motor (12) into the axial motion of a valve body; a housing (16) that receives the motor and at least a part of the power transmission mechanism (14); an external connector (18) which is provided to the housing (16) and which enables power supply to the motor (12) and communication with a control device connected through a network; and a control board (41, 42, 43) which is provided inside the housing (16), which processes the communication, and controls the motor (12), and in which a connection position to an external-connector-side terminal (18B) and a connection position to a motor-side terminal (12B) are located on the opposite sides to each other with respect to the axis (L) of the motor (12).
A flow passage switching valve includes a U-turn valve member that has a first valve component and a second valve component in a quadrangular cylindrical shape. The first valve component includes a first U-turn passage formed in an end surface facing a first valve seat and an annular wall portion which is formed in an end surface near a second valve seat and in which an end portion of the second valve component near the first valve seat is fitted. The end surface of the first valve component and an inner circumferential surface of the second valve component form a second U-turn passage.
F16K 3/314 - Forms or constructions of slides; Attachment of the slide to the spindle
F16K 11/065 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with linearly sliding closure members
F25B 41/20 - Disposition of valves, e.g. of on-off valves or flow control valves
Provided is a valve device assembly that makes it possible to suppress heat exchange between valve devices. The valve device assembly (5) includes a high pressure-side valve device (10) and a low pressure-side valve device (20). Each of the high pressure-side valve device (10) and the low pressure-side valve device (20) includes: one valve body having a plurality of refrigerant passages; and a plurality of valve units mounted to the valve body. A high pressure-side valve body (100) of the high pressure-side valve device (10) and a low pressure-side valve body (200) of the low pressure-side valve device (20) are arranged separated from each other.
[Problem] To provide: a valve device which can suppress leakage of a refrigerant and with which the number of components can be reduced; and an air conditioning device having this valve device. [Solution] A valve device 10 of an air conditioning device 1 has a valve main body 100. The valve main body 100 has: a high pressure-side main refrigerant passage 110; and a first high pressure-side branched refrigerant passage 111 and a second high pressure-side branched refrigerant passage 112 which are connected to the high pressure-side main refrigerant passage 110. The valve device 10 has: a high pressure-side flow rate adjusting valve unit 200 which can modify the passage area of the first high pressure-side branched refrigerant passage 111; and a high pressure-side open/close valve unit 300 which can open/close the second high pressure-side branched refrigerant passage 112.
[Problem] To provide a valve device and a manufacturing method therefor, with which the shape of a plurality of refrigerant passages formed in one valve body can be simplified. [Solution] A high-pressure-side valve body 100 of a high-pressure-side valve device 10 has a high-pressure-side main refrigerant passage 110, a first high-pressure-side branching refrigerant passage 310, and a second high-pressure-side branching refrigerant passage 410. The high-pressure-side main refrigerant passage 110 has a columnar shape extending in a straight line from a main surface 101 toward a rear surface 102 of the high-pressure-side valve body 100. Part of a columnar first high-pressure-side main valve chamber 311 of the first high-pressure-side branching refrigerant passage 310 overlaps the high-pressure-side main refrigerant passage 110. Part of a columnar second high-pressure-side main valve chamber 411 of the second high-pressure-side branching refrigerant passage 410 overlaps the high-pressure-side main refrigerant passage 110.
An electrically operated valve having excellent wear resistance while suppressing cost is provided. The electrically operated valve comprises a valve main body having a valve seat; a motor including a stator fixed to the valve main body and a rotor driven to rotate with respect to the stator, a planetary gear type deceleration mechanism configured to decelerate rotation of the rotor to transmit to an output gear, a valve member configured to be movable toward and away from the valve seat in an axial direction, and a feed screw mechanism configured to convert rotational movement of the output gear into movement of the valve member in the axial direction. The planetary gear type deceleration mechanism includes a sun gear coupled to the rotor, a planetary gear engaged with the sun gear, a carrier for rotatably supporting the planetary gear, an annular ring gear engaged with the planetary gear, and a sliding member abutting against an axial end of the sun gear. The output gear has a different number of teeth than the ring gear, and engages with the planetary gear, and the sliding member is made of a different material from the material of the sun gear.
F16K 31/04 - Operating means; Releasing devices magnetic using a motor
F16K 1/32 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces - Details
F16K 31/50 - Mechanical actuating means with screw-spindle
F16K 31/53 - Mechanical actuating means with toothed gearing
F25B 41/35 - Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators by rotary motors, e.g. by stepping motors
Provided is a flow rate control valve that prevents foreign matter from being jammed therein and that can appropriately control a flow rate. The flow rate control valve (1) comprises: a valve body (31) in which a valve seat (31e) is provided; a deceleration part (20) that decelerates and transmits the rotation of a motor to a rotating body (26); a conversion mechanism that moves a moving body in an axial direction according to the rotational movement of the rotating body; and a valve disc (33) that moves according to the movement in the axial direction of the moving body, and moves toward or away from the valve seat. A first engagement part (26b) provided on the rotating body and a second engagement part (29) provided on the valve body move toward or away from each other according to the rotation of the rotating body. After the valve disc is seated on the valve seat, the first engagement part is brought into contact with the second engagement part, and the rotation of the rotating body is stopped.
Provided is a compact electric valve in which a magnetic sensor can be disposed near a can. This electric valve (1) has a stator unit (50) having an inner space (74) in which a can (20) is disposed. The stator unit (50) has a main substrate (90) disposed so as to be parallel to the vertical direction, a sub-substrate (100) disposed at a right angle to the main substrate (90), and a magnetic sensor (110) provided on the sub-substrate (100). A housing (70) has a sub-substrate space (75) disposed adjacent to the inner space (74). A first end (100a) of the sub-substrate (100) is connected to the main substrate (90) via a substrate terminal (101). A second end (100b) of the sub-substrate (100) is disposed in the vicinity of the inner space (74) in the sub-substrate space (75). The magnetic sensor (110) is disposed closer to the inner space (74) than the substrate terminal (101).
F16K 31/04 - Operating means; Releasing devices magnetic using a motor
H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
H02K 11/215 - Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
H02K 11/33 - Drive circuits, e.g. power electronics
F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
Provided is a compact electric valve in which a magnetic sensor can be disposed close to a can. This electric valve (1) has a stator unit (50) having an inside space (74) in which a can (20) is disposed. The stator unit (50) has a main board (90) disposed so as to be parallel to the vertical direction, a sub board (100) disposed at a right angle to the main board (90), and a magnetic sensor (110) provided to the sub board (100). A housing (70) has a sub board space (75) disposed so as to be adjacent to the inside space (74). A first end (100a) of the sub board (100) is connected to the main board (90) with a sheet-shaped flexible connector (104) therebetween. A second end (100b) of the sub board (100) is disposed in the sub board space (75) in proximity to the inside space (74). The magnetic sensor (110) is disposed closer to the inside space (74) than to the connection site of the flexible connector (104) on the sub board (100).
F16K 31/04 - Operating means; Releasing devices magnetic using a motor
H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
H02K 11/215 - Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
H02K 11/33 - Drive circuits, e.g. power electronics
F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
[Problem] To provide an electrically driven valve that can effectively suppress the collision noise of a plunger without a change in performance. [Solution] A solenoid valve 1 wherein a cushioning member 50 made of an elastically deformable synthetic resin is disposed in an internal space 33b of a plunger 33. When the plunger 33 is separated from an upper end wall part 32b of a case 32, the upper end 50a of the cushioning member 50 protrudes from the internal space 33b toward the upper end wall part 32b. When the plunger 33 moves toward the upper end wall part 32b, the upper end 50a of the cushioning member 50 contacts the upper end wall part 32b and is pushed into the internal space 33b, and the plunger 33 contacts the upper end wall part 32b.
A flow channel switching valve includes a valve stem that is attached to a ball valve member. The flow channel switching valve includes a potentiometer shaft that is press-fitted into an attachment hole provided in an end surface of the valve stem, and a potentiometer that detects a rotation angle of the potentiometer shaft around an axis. The potentiometer shaft has a small-diameter portion, a medium-diameter portion, and a large-diameter portion that are sequentially connected in a direction of the axis, and is supported rotatably around the axis in the attachment hole in an inserted state before being press-fitted into the attachment hole. The large-diameter portion is press-fitted into an upper end portion of the attachment hole.
F16K 27/06 - Construction of housings; Use of materials therefor of taps or cocks
F16K 5/06 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
F16K 11/087 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug
81.
DIFFERENTIAL PRESSURE VALVE AND VALVE DEVICE HAVING SAME
[Problem] To provide a differential pressure valve capable of inhibiting diaphragm damage caused by foreign matter, and a valve device having the same. [Solution] A valve body (10) of a solenoid valve (1), the valve body (10) having: a main valve chamber (12); a first outflow port (14) connected to the main valve chamber (12) via a main valve seat (17); a differential pressure valve chamber (13) connected to the main valve chamber (12) via a branch passage (18); and a second outflow port (15) connected to the differential pressure valve chamber (13) via a differential pressure valve seat (20). The solenoid valve (1) has: a synthetic resin diaphragm (51) that partitions the first outflow port (14) and the differential pressure valve chamber (13) in the valve body (10); and an annularly-shaped retaining member (54) that is fixed to the valve body (10). The periphery (51b) of the diaphragm (51) has an annularly-shaped synthetic resin protective sheet (52) that is arranged so as to overlap the surface thereof on the retaining member (54)-side. The periphery (51b) of the diaphragm (51) and protective sheet (52) are retained between the valve body (10) and the retaining member (54).
F16K 17/30 - Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
F16K 31/06 - Operating means; Releasing devices magnetic using a magnet
F25B 41/20 - Disposition of valves, e.g. of on-off valves or flow control valves
An electric valve can be further miniaturized while reducing the number of manufacturing man-hours. The electric valve contains: a motor including a stator member and a rotor member that displace a valve body, and a housing for accommodating the motor. The housing is formed by joining a heat generation portion formed of a first material to a heat receiving portion formed of a second material. The light transmittance in the first material is lower than the light transmittance in the second material.
B29C 65/00 - Joining of preformed parts; Apparatus therefor
F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
[Problem] To provide: an electric valve capable of reducing steps for fixing a housing that accommodates a stator to a valve main body; and an assembly method for the electric valve. [Solution] An electric valve (1) comprises: a valve main body (10) having a main body portion (11); a cylindrical stator (60); a cylindrical can (28) joined to the valve main body (10) and coaxially arranged with and inside the stator (60); and a housing (70) that accommodates the stator (60). The main body portion (11) has a retention groove (21). The housing (70) has a mounting plate (82) arranged inside the retention groove (21). The retention groove (21) has an opening (21k) at an end portion on the housing (70) side. The mounting plate (82) is engaged with the main body portion (11) so that the movement of the mounting plate (82) toward the opening (21k) is restricted.
In a flow path switching valve, when a valve rod is shifted toward a first back pressure chamber, a first valve chamber is separated from the first back pressure chamber by a first valve element, and a second valve chamber is separated from an intermediate chamber by a second valve element. When the valve rod is shifted toward a second back pressure chamber, the first valve chamber is separated from the intermediate chamber by the first valve element, and the second valve chamber is separated from the second back pressure chamber by the second valve element. The valve rod has a pressure equalizing path through which the first back pressure chamber and the second back pressure chamber are connected.
F16K 1/44 - Cutting-off parts - Details of seats or valve members of double-seat valves
F16K 11/048 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only lift valves with valve seats positioned between movable valve members
F16K 31/04 - Operating means; Releasing devices magnetic using a motor
An improved expansion valve is provided, which has a simple configuration and with which noise can be reduced. An expansion valve includes a valve main body having a valve chamber and a valve seat, a valve body configured to prevent passage of a fluid by being seated on the valve seat and allow passage of the fluid by separating from the valve seat, a coil spring configured to urge the valve body toward the valve seat, and an actuation rod configured to press the valve body toward a direction separating from the valve seat against an urging force applied from the coil spring, wherein the valve chamber includes a cylindrical inner wall being connected to the valve seat, the valve body includes a contact portion configured to be seated on the valve seat and a body portion having a tubular shape facing the inner wall, and the body portion includes connecting surfaces that are slidably in contact with the inner wall and plane surfaces that have a gap provided between the inner wall.
Provided is a pilot-type electrical drive valve with which it is possible to effectively suppress noise generated when the valve is open. The pilot-type electric drive valve (1) has: a valve body (10) provided with a valve chamber (CA) that communicates with an inflow opening (12d) and an outflow opening (13a); a pilot valve body (35) that can move relative to the valve body (10); a main valve body (15) that can move relative to the valve body (10) and is seated on or separated from a valve seat (14) inside the valve chamber (CA); and an auxiliary valve body (16) in which the pilot valve body (35) is positioned so as to contact or separate from the auxiliary valve body (16), the auxiliary valve body (16) being able to move relative to the main valve body (15). A back-pressure chamber (CD) that contains a fluid is formed between the pilot valve body (35) and the auxiliary valve body (16), and a pressure-equalization chamber (CB) that contains the fluid is formed between the main valve body (15) and the auxiliary valve body (16).
F16K 31/06 - Operating means; Releasing devices magnetic using a magnet
F16K 31/40 - Operating means; Releasing devices actuated by fluid in which fluid from the conduit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
A valve device capable of reducing pressure loss is provided. The valve device is provided with a valve main body having a valve chamber in which a valve body is arranged, inflow outlets, and communication holes communicating the valve chamber and the inflow outlets, and a rectification member arranged in the communication hole. The communication hole has a bent portion where the center line of the communication hole is bent, and the rectification member is arranged in the bent portion and has a corner portion formed by an inner circumferential surface bent or curved at an angle larger than the angle of the bent portion.
F16K 1/32 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces - Details
F16K 27/02 - Construction of housings; Use of materials therefor of lift valves
F16K 11/044 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
F15D 1/04 - Arrangements of guide vanes in pipe elbows or duct bends; Construction of pipe conduit elements or elbows with respect to flow, specially for reducing losses of flow
[Problem] To provide a stator unit and an electric valve in which the occurrence of a weld line can be suppressed. [Solution] A stator unit (50) of an electric valve (1) has a stator (60), a housing (70), and a case (80). The housing (70) integrally has a peripheral wall portion (71), an upper wall portion (72) continuously connected to the peripheral wall portion (71), a dome portion (73) projecting upward from the upper wall portion (72), and a square cylindrical connecting portion (75) extending in a lateral direction. The connecting portion (75) has an end portion (76) and a top plate portion (77). The end portion (76) projects from the peripheral wall portion (71) in the lateral direction and is connected with the case (80). The top plate portion (77) has a flat plate shape and projects upward from the upper wall portion (72). There is a projected rim portion (78) in the central portion of the upper surface (77a) of the top plate portion (77) in the width direction, said projected rim portion (78) extending from the dome portion (73) to the end portion (76).
A variable-capacity compressor control valve is configured for easily regulating the opening degree of an in-valve release passage, and thus can effectively reduce internal circulation of refrigerant within the compressor and effectively improve the operation efficiency of the compressor. An in-valve large-opening release passage with a relatively large opening degree, which is used during the compressor actuation time, and an in-valve small-opening release passage with a relatively small opening degree, which is used during both the compressor actuation time and the normal control time (i.e., Pd→Pc control time), are formed using different passages.
F16K 11/24 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with two or more closure members not moving as a unit operated by separate actuating members with an electromagnetically-operated valve, e.g. for washing machines
F04B 49/22 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups by means of valves
[Problem] To provide an electric valve demonstrating high durability and low power consumption. [Solution] An electric valve (1) includes: a main valve body (10) having a valve chamber (14) and a valve port (13a); a valve body (30) for opening/closing the valve port (13a); and a support member (20) supporting the valve body (30) so that the valve body (30) can move backward and forward relative to the valve port (13a). The electric valve (1) includes: a drive shaft (25) having a male screw portion (26); a rolling bearing (23) rotatably supporting the drive shaft (25); a planetary gear mechanism (50) connected to the drive shaft (25); and a female screw body (32) fixed to the valve body (30). The female screw body (32) is threaded with the male screw portion (26). The support member (20) supports the female screw body (32) so as to regulate rotation about an axis line (L) and allow movement in the axis line (L) direction.
A first flow channel of a flow channel switching valve includes a first portion that is connected to a valve body and that is linear, a second portion that is connected such that the second portion is perpendicular to the first portion and that is linear, and a lid member that is joined such that the lid member covers an opening of a tip end of the first portion. The first flow channel also includes a pair of projecting portions that is disposed such that the projecting portions interpose the first portion therebetween in a radial direction and face each other, and a connecting portion that couples the pair of projecting portions with each other. The pair of projecting portions includes a planar surface portion that faces the valve body direction.
[Problem] To provide a drain pump which can effectively reduce noise. [Solution] This drain pump (1) has a motor case (40) which accommodates a motor (30). The motor case (40) has: a bottom wall part (51); a cylindrical inner wall part (52), the lower end of which is connected to the bottom wall part (51); outer wall parts (54), (55) which are circular arcs in a plan view, and the lower ends of which are connected to the bottom wall part (51); and a motor support part (56) connected to an upper end of the inner wall part (52). The outer wall parts (54), (55) are disposed to be spaced apart from the inner wall part (52), the motor support part (56), and the motor (30).
[Problem] To provide a drainage pump with which it is possible to reduce the amount of drain water remaining in a drain pan. [Solution] A drainage pump (1) includes a housing (10), a rotating blade (20) accommodated in the housing (10), and a motor (30) having a drive shaft (32) connected to the rotating blade (20). The housing (10) has a cylindrical intake pipe (12) which extends in the vertical direction. Furthermore, a downward facing intake port (12a), and an annular concave surface (12b) surrounding the intake port (12a) are provided in a lower end (12c) of the intake pipe (12).
This drain water pump includes: a motor; and a pump unit provided with a housing, a rotating blade, and a cover. The housing is open at an upper section thereof and is provided with a suction port on a lower end section thereof and a discharge port on a side section thereof. The rotating blade is coupled to the motor. The cover has a through hole in a center section thereof and is attached to an upper end section of the housing. The housing and the cover define a pump chamber. The discharge port has a discharge port inlet that opens through an inner peripheral surface of the pump chamber so as to straddle a joint region where an inner peripheral surface formed by the housing and an inner peripheral surface formed by the cover are joined. A corner section of the discharge port inlet is chamfered, the corner section being positioned at a boundary between the inner peripheral surface of the housing and an inner surface of the discharge port.
A drainage pump having a motor, and a pump main body provided with: a housing, an upper part of which is open and a lower end portion of which is provided with a suction opening, and a side portion of which is provided with a discharge opening for connecting to a drain pipe; rotary vanes coupled to the motor; and a cover in the center of which there is a through-hole, and which is attached to an upper end portion of the housing. A pump chamber is defined by the housing and the cover. A protruding part that prevents return water from the drain pipe from flowing into the discharge opening is provided in the discharge opening, at an end portion of the discharge opening.
A pulsation damper is small in size and can achieve an appropriate supporting force for a diaphragm damper. A pulsation damper accommodated in a case includes a diaphragm damper having a gas sealed therein, and a first support member and a second support member that are disposed between the case and the diaphragm damper and that hold the diaphragm damper.
F02M 55/04 - Means for damping vibrations in injection-pump inlets
F02M 59/44 - Pumps specially adapted for fuel-injection and not provided for in groups - Details, component parts, or accessories not provided for in, or of interest apart from, the apparatus of groups
[Problem] To provide an electric valve which can reliably detect the magnetism of a magnet rotor with a magnetic sensor mounted on a substrate. [Solution] This electric valve (1) has magnetic transmission members (36a), (36b) disposed between a can (30) and magnetic sensors (35a), (35b) mounted on a substrate (85). On the outer peripheral surface (41a) of a magnet rotor (41) disposed on the inner side of the can (30), a plurality of N poles and a plurality of S poles extending in the rotational axis direction of the magnet rotor (41) are provided so as to be arranged side-by-side in the circumferential direction. Can-side ends (36a1), (36b1) of the magnetic transmission members (36a), (36b) are disposed so as to radially face the magnet rotor (41) through the can (30).
F16K 31/04 - Operating means; Releasing devices magnetic using a motor
H02K 11/215 - Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
[Problem] To provide an electric-operated valve which is capable of reliably detecting magnetic flux generated from a magnet rotor by means of a configuration that uses a relatively small number of components. [Solution] This electric-operated valve (1) has a magnet rotor (41) disposed inside a can (30). On an outer circumferential surface (41a) of the magnet rotor (41), a plurality of N-poles and S-poles are provided side by side in the circumferential direction. Magnetic sensors (35a), (35b) are disposed on the outer circumferential surface (30a) of the can (30) so as to face the magnet rotor (41) in the radial direction across the can (30). Further, when viewed from the direction of rotational axis, the magnetic sensor (35a) is disposed on a straight line (F1) that passes the rotational axis of the magnet rotor (41) and the center of one downward-facing pole tooth (63a) among multiple pole teeth of an upper stator (61).
F16K 31/04 - Operating means; Releasing devices magnetic using a motor
F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
Provided are: a power element that ensure conveyance efficiency of a refrigerant and that can suppress local deformation and the like of a diaphragm; and an expansion valve using the power element. A power element (8) has: a diaphragm (83); an upper lid member (82) that overlaps one surface near the outer circumference of the diaphragm (83) and that forms a pressure operation chamber (PO) between the upper lid member and the diaphragm (83); a reception member (86) that overlaps the other surface near the outer circumference of the diaphragm (83) and that forms a refrigerant inflow chamber (LS) between the reception member and the diaphragm (83); a stopper member (84) that is housed in the refrigerant inflow chamber (LS) and that abuts against the diaphragm (83). The sheet thickness in a center part (83b) of the diaphragm (83) is greater than the sheet thickness near a supporting point of the diaphragm (83).
F16K 31/68 - Operating means; Releasing devices responsive to temperature variation actuated by fluid pressure or volumetric variation in a confined chamber
F25B 41/335 - Expansion valves with the valve member being actuated by the fluid pressure, e.g. by the pressure of the refrigerant via diaphragms
Provided are: a power element that can suppress local deformation of a diaphragm while ensuring the conveyance efficiency of a refrigerant; and an expansion valve using the power element. The power element (8) is characterized by having: a diaphragm (83); an upper lid member (82) that overlaps one surface in the vicinity of the outer circumference of the diaphragm (83) and forms a pressure operating chamber (PO) between the upper lid member (82) and the diaphragm (83); a reception member (86) overlaps on the other surface in the vicinity of the outer circumference of the diaphragm (83) and forms a refrigerant inflow chamber (LS) between the reception member (86) and the diaphragm (83); and a stopper member (84) that is accommodated in the refrigerant inflow chamber (LS) and abuts the diaphragm (83), wherein the diaphragm (83) is displaced from a neutral position within a range of positions displaced from the neutral position to the upper lid member (82) side.
F16K 31/68 - Operating means; Releasing devices responsive to temperature variation actuated by fluid pressure or volumetric variation in a confined chamber
F25B 41/335 - Expansion valves with the valve member being actuated by the fluid pressure, e.g. by the pressure of the refrigerant via diaphragms
