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
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
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.
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.
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.
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
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
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
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
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.
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
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
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.
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
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 31/50 - Mechanical actuating means with screw-spindle
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 31/53 - 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
An expansion valve with an improved vibration isolation mechanism includes a valve body, a valve element, a biasing member that biases the valve body toward a valve seat, an actuation rod that contacts the valve element and presses the valve element in a valve opening direction against a biasing force of the biasing member, and a vibration isolating spring that suppresses vibration of the valve element. The actuation rod is inserted into an actuation rod insertion hole in the valve body. The vibration isolating spring includes a leg spring having a base portion and a plurality of leg portions extending from the base portion. The leg spring is arranged in the valve chamber such that a center axis of the leg spring is non-coincident with a center axis of the actuation rod insertion hole.
It is an object of the present invention to provide an expansion valve with an improved ring spring.
Accordingly, in the present invention, the expansion valve includes a valve body including a valve chamber, a valve element disposed in the valve chamber, a biasing member configured to bias the valve element toward a valve seat, an actuation rod that presses the valve element in a valve opening direction against a biasing force of the biasing member, and a ring spring disposed between an outer circumferential surface of the actuation rod and an inner circumferential surface of the valve body. The ring spring includes a ring portion, at least three elastic protrusion portions that protrude inward from the ring portion and contact the outer circumferential surface of the actuation rod, and at least one outward protrusion portion that protrudes outward from the ring portion and contacting the inner circumferential surface of the valve body.
The present invention provides a flow channel switching valve with a reduced number of components as well as a reduced weight, and a method for assembling the same. A valve shaft adapted to be coupled to a valve element so as to transmit torque of a rotary drive portion to the valve element is inserted through a vertical through-hole, which penetrates through the valve element in the direction of the rotation axis O (i.e., vertical direction), and through a fit-insertion hole provided in a valve body. Then, a drive gear that forms the rotary drive portion is fixed to the upper coupling portion of the valve shaft protruding from the fit-insertion hole so that the valve shaft is rotatably supported with respect to the valve body.
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 31/53 - Mechanical actuating means with toothed gearing
26.
Coil device, and motor-driven valve and solenoid valve including such a coil device
Provided are a coil device that considerably reduces the man-hours and the cost for manufacturing, and a motor-driven valve and a solenoid valve including such a coil device. The terminal end of the magnet wire is fixed to a conducting terminal by swaging and/or fusing at a distal-end binding part for binding the terminal end of the magnet wire.
An object of the present invention is to provide an electrically operated valve capable of more accurately detecting the position of a valve body.
In order to achieve the above object, the electrically operated valve of the present invention comprises a valve body, a driver configured to move the valve body along a first axis, a rotation shaft configured to rotate the driver around the first axis, a permanent magnet member, an angle sensor, and a yoke configured to cover a portion of the permanent magnet or a portion of the angle sensor. The permanent magnet member is disposed on the rotation shaft and configured to rotate with the rotation shaft. The angle sensor is configured to detect a rotation angle of a permanent magnet included in the permanent magnet member. The angle sensor is disposed above the permanent magnet.
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
An object of the present invention is to provide an electrically operated valve capable of more accurately detecting the position of a valve body. In order to achieve the above object, the electrically operated valve of the present invention comprises a valve body, a driver configured to move the valve body along a first axis, a rotation shaft configured to rotate the driver around the first axis, a permanent magnet member, and an angle sensor. The permanent magnet member is disposed on the rotation shaft and configured to rotate with the rotation shaft. The angle sensor is configured to detect a rotation angle of a permanent magnet included in the permanent magnet member. The angle sensor is disposed above the permanent magnet.
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 31/08 - Operating means; Releasing devices magnetic using a magnet using a permanent magnet
G01D 5/244 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains
F16K 31/04 - Operating means; Releasing devices magnetic using a motor
Provided is a variable-capacity compressor control valve with a simple configuration that can increase the attraction force of an electromagnetic actuator and thus can reduce the size of the control valve. A sub valve element that is a magnetic body made of the same magnetic material as or a different magnetic material from that of a plunger, which is adapted to move a main valve element in the direction to open or close the valve orifice, is fitted in and fixed to the plunger.
F04B 27/18 - Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
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
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
Provided is a refrigerant container having a rational structure with a small number of components, the container having both the functions of a receiver and an accumulator. Specifically, the refrigerant container includes a tank 10 capable of temporarily storing a refrigerant; and a gas/liquid inlet port 15, a liquid-phase outlet port 16, and a gas-phase outlet port 17 that are provided in an upper portion of the tank 10. The refrigerant container 1 is adapted to separate a refrigerant introduced through the gas/liquid inlet port 15 into a liquid-phase refrigerant and a gas-phase refrigerant, and has the function of a receiver that guides only the liquid-phase refrigerant after the separation to the side of an expansion valve via the liquid-phase outlet port 16, and the function of an accumulator that guides the gas-phase refrigerant after the separation to the suction side of a compressor via the gas-phase outlet port 17 together with oil contained in the liquid-phase refrigerant.
Provided is a variable-capacity compressor control valve that is compact and is capable of suppressing the influence of the pressure difference between the crank chamber pressure Pc, the suction pressure Ps, and the like. A valve body includes an in-valve release passage for releasing a pressure Pc in a crank chamber to a suction chamber of a compressor via a Ps inlet/outlet port. A sub valve element adapted to open or close the in-valve release passage along with movement of the plunger is provided.
F16K 31/02 - Operating means; Releasing devices magnetic
F04B 27/18 - Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
F04B 49/12 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups by varying the length of stroke of the working members
F16K 31/06 - Operating means; Releasing devices magnetic using a magnet
F16K 11/14 - 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 one actuating member, e.g. a handle
G05D 16/20 - Control of fluid pressure characterised by the use of electric means
F16K 31/365 - Operating means; Releasing devices actuated by fluid in which fluid from the conduit is constantly supplied to the fluid motor the fluid acting on a diaphragm
Provided is an accumulator that can effectively suppress impact noise associated with a bumping phenomenon when a compressor is operating, without an increase in the complexity, cost, or size of the accumulator. An inlet port 15 is disposed in the lower portion of a tank 10, and a gas-liquid separation accelerating plate 22 is disposed above inlet port 15 inside the tank 10 so that the gas-liquid separation accelerating plate 22 is opposite the inlet port 15.
A housing includes a plurality of valve element housing holes rotatably house valve elements therein, and a plurality of fluid passage holes, each of the fluid passage holes having one end connected to a peripheral wall surface of one of the valve element housing holes and the other end open on an outer wall surface of the housing to circulate fluids. Axes of the valve element housing holes are parallel to each other. Axes of the fluid passage holes are parallel to each other and perpendicular to the axes of the valve element housing holes. Each of the fluid passage holes is connected to at least two of the valve element housing holes, and has a perpendicular-to-axis cross section partially or entirely overlapping the at least two valve element housing holes in an axial direction of the fluid passage hole.
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
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 27/04 - Construction of housings; Use of materials therefor of sliding valves
F16K 27/06 - Construction of housings; Use of materials therefor of taps or cocks
F16K 27/00 - Construction of housings; Use of materials therefor
F16K 31/04 - Operating means; Releasing devices magnetic using a motor
F16K 27/02 - Construction of housings; Use of materials therefor of lift valves
36.
Expansion valve including a vibration isolation spring having a plurality of legs
An expansion valve is provided with a valve body including an inlet hole through which a refrigerant flows into a valve chamber, and a valve hole through which the refrigerant flows out of the valve chamber; a valve element configured to adjust an amount of the refrigerant flowing through the valve hole; a power element that is mounted to the valve body and configured to drive the valve element via a valve rod; a first vibration isolation spring provided in the valve chamber and configured to prevent vibration of the valve element; and a second vibration isolation spring that is in contact with the valve rod and configured to prevent vibration of the valve element.
Provided is a refrigerant container having a rational structure with a small number of components, the container having both the functions of a receiver and an accumulator. Specifically, the refrigerant container includes a tank 10 capable of temporarily storing a refrigerant; and a gas/liquid inlet port 15, a liquid-phase outlet port 16, and a gas-phase outlet port 17 that are provided in a lower portion of the tank 10. The refrigerant container 1 is adapted to separate a refrigerant introduced through the gas/liquid inlet port 15 into a liquid-phase refrigerant and a gas-phase refrigerant, and has the function of a receiver that guides only the liquid-phase refrigerant after the separation to the side of an expansion valve via the liquid-phase outlet port 16, and the function of an accumulator that guides the gas-phase refrigerant after the separation to the suction side of a compressor via the gas-phase outlet port 17 together with oil contained in the liquid-phase refrigerant.
F25B 43/00 - Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
F25B 43/04 - Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for withdrawing non-condensible gases
The sealing member includes a first sealing part and a second sealing part and a joining part connecting together the first sealing part and the second sealing part. The first sealing part extends to surround a peripheral edge of the first opening hole on the main body inner peripheral surface side. The second sealing part extends to surround a peripheral edge of the second opening hole on the main body inner peripheral surface side. The joining part is placed at a position where a mutual interval between the first sealing part and the second sealing part is the smallest in the circumferential direction. Each of the first joining end portion and the second joining end portion of the joining part is pressed outward in the valve radial direction by the valve body outer peripheral surface to be resiliently deformed.
B60H 1/00 - Heating, cooling or ventilating devices
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 5/04 - 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 cylindrical surfaces; Packings therefor
F16K 11/076 - 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 pivoted closure members with sealing faces shaped as surfaces of solids of revolution
F16K 25/00 - VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING - Details relating to contact between valve members and seats
Provided is a variable-capacity compressor control valve that can secure the attraction force of an electromagnetic actuator and can improve the actuation property without increasing the body size. A sub valve element or a cylindrical upper end portion thereof, which is a magnetic body made of the same magnetic material as or a different magnetic material from that of a plunger, is fixed to the inner periphery of the upper end portion of the plunger that is opposite an attractor.
F16K 31/06 - Operating means; Releasing devices magnetic using a magnet
F04B 27/18 - Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
F04B 49/12 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups by varying the length of stroke of the working members
An expansion valve includes a valve main body having a valve chamber therein, a valve body arranged within the valve chamber, a valve body support member supporting the valve body, an urging member urging the valve body toward a valve seat, an actuating bar pressing the valve body in an opening direction of the valve against urging force generated by the urging member, and a vibration proof spring suppressing vibration of the valve body or the actuating bar. The actuating bar has an outer peripheral surface of which a part constitutes a contact surface slidably contacting with the vibration proof spring, and the contact surface has a shape by which the amount of deformation of the vibration proof spring becomes greater as the valve body goes towards a closing direction of the valve.
F16F 1/02 - Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
F25B 41/06 - Flow restrictors, e.g. capillary tubes; Disposition thereof
A pulsation damper includes an upper diaphragm, a lower diaphragm configured to form a sealed space having a predetermined pressure with the upper diaphragm, in which an inert gas is filled; and a deformation suppressing member formed of an elastic material, and comprising an inner cylindrical portion, and an extension portion extending from a center portion on an outer peripheral surface of the inner cylindrical portion such that the extension portion extends outward from a center axis of the inner cylindrical portion, wherein the deformation suppressing member is arranged inside the sealed space such that an outer periphery of the extension portion abuts against inner walls of the upper diaphragm and the lower diaphragm.
F16L 55/053 - Pneumatic reservoirs the gas in the reservoir being separated from the fluid in the pipe
F02M 51/00 - Fuel-injection apparatus characterised by being operated electrically
F02M 55/00 - Fuel-injection apparatus characterised by their fuel conduits or their venting means
F02M 59/26 - Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their cylinders
F02M 59/36 - Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages
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
F02M 37/00 - Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
F02M 55/04 - Means for damping vibrations in injection-pump inlets
The invention provides an electrically operated valve which can more accurately detect a position of a valve body. An electrically operated valve is provided with a valve shaft, a valve body, a rotor member which is movable together with the valve shaft in a parallel direction to a first direction, a stator member which applies a turning force to the rotor member, a permanent magnet member which turns together with the rotor member, an angle sensor which detects an angle of rotation of the permanent magnet, and a guide member which guides a relative movement of the rotor member or the valve shaft in relation to the permanent magnet member. A distance between the permanent magnet and the angle sensor is fixed when the permanent magnet member turns.
F16K 31/06 - Operating means; Releasing devices magnetic using a magnet
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
F25B 41/06 - Flow restrictors, e.g. capillary tubes; Disposition thereof
H02K 5/128 - Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
H02K 7/06 - Means for converting reciprocating motion into rotary motion or vice versa
H02K 11/215 - Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
H02K 37/00 - Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
45.
Control valve and method of manufacturing the same
The invention provides a control valve which makes the downsizing and the weight reduction possible and a method of manufacturing the same. The control valve is provided with a valve main body in which a valve chamber is formed in its inner portion, a connection member which is firmly fixed to the valve main body, and a can which is firmly fixed to the valve main body. The valve main body and the can include the same metal material. The connection member is made of a resin. The connection member is provided with a fastening portion for connecting piping parts.
An electric valve includes a seating surface portion attached to a valve seat and a curved surface portion inserted into a valve port that are disposed in a valve body. A constricted surface portion smaller in outer diameter than an upper end portion of the curved surface portion is provided between the seating surface portion and the curved surface portion. As a result, a rising flow rate can be sufficiently reduced and controllability in a low flow range can be effectively improved with management of the rising flow rate simplified.
F16K 1/12 - 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 with streamlined valve member around which the fluid flows when the valve is opened
F16K 31/50 - Mechanical actuating means with screw-spindle
F16K 31/04 - Operating means; Releasing devices magnetic using a motor
F16K 1/54 - Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
F25B 41/06 - Flow restrictors, e.g. capillary tubes; Disposition thereof
G05B 15/02 - Systems controlled by a computer electric
F16K 31/02 - Operating means; Releasing devices magnetic
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
F24F 11/37 - Resuming operation, e.g. after power outages; Emergency starting
[Object] An electric valve control device capable of preventing a start delay of an electric valve control (an opening degree control) by shortening a waiting period of a system control device and an electric valve device including the same are provided.
[Solving Means] An electric valve control device 11 outputs a signal indicating an end or an interruption of an initialization operation to an air conditioner ECU 16 after the initialization operation of the electric valve 9 ends or is interrupted.
F16K 31/04 - Operating means; Releasing devices magnetic using a motor
F16K 11/10 - 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
F25B 1/08 - Compression machines, plants or systems with non-reversible cycle with compressor of jet type, e.g. using liquid under pressure using vapour under pressure
F25B 13/00 - Compression machines, plants or systems, with reversible cycle
F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems
F25B 41/06 - Flow restrictors, e.g. capillary tubes; Disposition thereof
G05F 1/46 - Regulating voltage or current wherein the variable actually regulated by the final control device is dc
G08B 1/08 - Systems for signalling characterised solely by the form of transmission of the signal using electric transmission
[Object] Provided is a control valve capable of ensuring controllability in both flows without increasing the number of parts.
[Solving Means] A plurality of differential pressure valves 50, 60, 70, and 80 are disposed inside a valve body 10 so that a fluid pressure acting on a main valve body 20 disposed inside a main valve chamber 13 becomes the same in a flow of both directions including one direction from a first inlet/outlet 11 to a second inlet/outlet 12 through the main valve chamber 13 and the other direction from the second inlet/outlet 12 to the first inlet/outlet 11 through the main valve chamber 13.
F16K 11/10 - 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
F16K 27/04 - Construction of housings; Use of materials therefor of sliding valves
F25B 41/06 - Flow restrictors, e.g. capillary tubes; Disposition thereof
F16K 31/122 - Operating means; Releasing devices actuated by fluid the fluid acting on a piston
A diaphragm includes a flange and a protrusion provided to protrude to one side of the flange, wherein the protrusion has at least two annular curved portions provided annularly on a ceiling portion having a flat surface-like shape and an outer side in a radial direction of the ceiling portion, in a state where pressure on an outer wall side of the protrusion and pressure on an inner wall side of the protrusion are the same, the at least two annular curved portions are each formed to be curved in a cross-section of the diaphragm obtained by cutting the diaphragm by a virtual plane including a center line of the diaphragm, the centers of curvature of the curved portions being arranged at different positions on a side opposite to a protruding direction of the protrusion, and the diaphragm is formed of a sheet metal.
F02M 37/00 - Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
F02M 59/36 - Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages
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
A pressure detection unit and a pressure sensor using the same capable of suppressing an increase in manufacturing man-hours due to use of an additional member, and ensuring insulation of a semiconductor type pressure detection device. The pressure detection unit includes a base formed in a lid shape and made of ceramic, a receiving member formed in a plate shape, a diaphragm interposed between the base and the receiving member, a semiconductor type pressure detection device installed on a side of a pressure receiving space formed between the base and the diaphragm in the base, and terminal pins electrically connected to the semiconductor type pressure detection device. The terminal pins penetrate the base, where a metal layer is provided in a region around the semiconductor type pressure detection device on a surface of the base on the side of the pressure receiving space.
G01L 19/00 - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE - Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
G01L 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
Provided is an accumulator capable of effectively suppressing a bumping phenomenon and the following impact noise without making the structure of the accumulator complicated or increasing the cost and the size thereof. A protrusion serving as an origination of boiling is disposed at a part soaked with a liquid part including liquid-phase refrigerant and oil accumulated in the tank 10 of the accumulator 1. Especially the protrusion is disposed at least at a part of an outer periphery of the outer pipe 32 in a double-pipe structure, and an inner periphery and an upper face of a bottom of the tank 10.
Provided is an accumulator capable of effectively suppressing a bumping phenomenon and the following impact noise during the starting of a compressor without making the structure of the accumulator complicated or increasing the cost and the size thereof, and so having cost-effectiveness. An accumulator includes: a tank 10 having an inflow port 15 and an outflow port 16; and a double-pipe structured outflow pipe 30 including an inner pipe 31 joined to the outflow port 16 and hanging inside of the tank 10, and an outer pipe 32 disposed outside of the inner pipe 31. A cloth-like member such as felt or a foam material 60 is wound around or externally inserted to the outer pipe 32.
Provided is a motor-driven valve with a simple configuration that can solve hysteresis generated when the rotary direction changes, without greatly changing a conventional motor-driving valve. A friction angle of an external thread and an internal thread of a thread feeding mechanism, a lead angle thereof, and a biasing force of a compression coil spring inserted between a valve shaft and a valve body are set so as to always bias the valve shaft making up the thread feeding mechanism to the valve body in a rotating direction in one direction or in the other direction in both of the upward-moving stroke and the downward-moving stroke.
F16K 1/12 - 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 with streamlined valve member around which the fluid flows when the valve is opened
Provided is a motor-driven valve with a simple configuration that is capable of suppressing flow rate loss of fluid and reducing noise caused by the flow of the fluid in the first flowing direction and the second flowing direction, without greatly changing a conventional motor-driving valve. A porous body is fixed to a valve seat member, the porous body being extended at least to be lateral to a valve port and having a cutout part corresponding to a first opening provided at a lateral part of a valve body.
F16K 47/14 - Means in valves for absorbing fluid energy for decreasing pressure and having a throttling member separate from the closure member the throttling member being a perforated membrane
F16K 47/02 - Means in valves for absorbing fluid energy for preventing water-hammer or noise
F16K 31/04 - Operating means; Releasing devices magnetic using a motor
F25B 41/06 - Flow restrictors, e.g. capillary tubes; Disposition thereof
61.
Caulking fixation type power element and expansion valve using the same
A caulking fixation type power element has a diaphragm, an upper lid member forming a pressure actuation chamber with a working gas, a receiving member provided with a through hole in its center portion and arranged in an opposite side to the upper lid member in relation to the diaphragm, and a stopper member arranged in a lower space formed between the diaphragm and the receiving member, and is integrated according to a circumferential welding by lapping the upper lid member, the diaphragm and the receiving member, the stopper member has a main body portion inserted to the through hole of the receiving member, and a flange portion having a larger diameter than the through hole and formed in one end of the main body portion, and the flange portion is arranged so as to come into contact with the receiving member from the lower space side.
There is provided a very reliable three-way solenoid valve that can reliably switch a refrigerant flow passage while ensuring a refrigerant flow rate even under a large-differential pressure environment without increasing the size of an electromagnetic coil and the like.
A valve body includes a conduction hole that communicates with a back pressure chamber formed on a side of a second valve element opposite to a second valve seat, a third valve seat that is positioned between the conduction hole and a second outlet, a third valve element that is movably disposed so as to approach and be separated from the third valve seat, a coil spring that biases the third valve element toward the third valve seat, and actuating rods that are interposed between a first valve element and the third valve element.
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 31/06 - Operating means; Releasing devices magnetic using a magnet
F16K 11/16 - 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 one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane
63.
Electromagnetic drive coil unit and molding method thereof
A method of molding an electromagnetic drive coil unit is provided which can secure satisfactory strength and waterproof properties. In a method of molding an electromagnetic drive coil unit in which a stator assembly includes bobbins having stator coils wound thereon and yokes in which an inner yoke having magnetic pole teeth and an outer yoke having magnetic pole teeth are combined and in which the stator assembly and a power supply terminal supplying power to the bobbins are molded in a resin, an inner molding process is performed on the inside of the outer yoke in a state where ends of the stator coils of the stator assembly are connected to the power supply terminal and an outer molding process is performed to cover an outer circumference of the stator assembly having an inner molded portion and an outside of the power supply terminal after the inner molding process.
H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
H02K 15/12 - Impregnating, heating or drying of windings, stators, rotors or machines
H01F 7/06 - Electromagnets; Actuators including electromagnets
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
H02K 3/52 - Fastening salient pole windings or connections thereto
An electrically operated valve is provided with a valve main body in which a valve chamber is defined in an inner portion and a first opening and a second opening are formed in a side portion and a bottom portion, a valve seat member which has an valve port open to the valve chamber and a valve seat and is provided in the second opening of the valve main body, a valve body which is arranged in the valve chamber so as to be movable up and down, and an elevation drive portion which moves up and down the valve body in relation to the valve seat, and a porous body constructed by a foam metal is arranged along a portion which is positioned in a side portion of the valve port on the inner wall surface of the valve main body. Accordingly, an abnormal noise can be reduced.
A female screw member includes a female screw part with a female screw, and a projection part projecting in the direction of a center shaft of the female screw and having a working face in the rotating direction centering on the center shaft. The female screw part and projection part are integrally molded with a resin. The projection part has a spiral inclination face spirally inclining by one round from the working face centering on the center shaft of the female screw. The height H of the working face is equal to or smaller than a pitch P of the female screw. Using the projection part as a fully opening fixing stopper, a motor operated valve includes a valve main body having a valve seat, the female screw member attached to the valve main body, a motor having a rotator and stator, and a valve shaft. The valve shaft is screwed to a female screw of the female screw member, and is rotated and driven by the rotor, and has a fully opening movable stopper capable of contacting the fully opening fixing stopper.
F16K 1/52 - Means for additional adjustment of the rate of flow
F16K 1/08 - Special arrangements for improving the flow, e.g. special shape of passages or casings in which the spindle is perpendicular to the general direction of flow
The invention prevents a pressure receiving space of a pressure sensor from being electrically charged. In a pressure sensor, a diaphragm is attached to a base which is fixed within a cover and a pressure receiving space in which an oil is sealed is formed. A semiconductor type pressure detecting device is connected to a plurality of terminal pins by a bonding wire. A neutralization plate attached to a periphery of the semiconductor type pressure detecting device or a part of the periphery thereof is connected to an earth terminal pin by an earth bonding wire, or is connected to the earth terminal pin by a soldering so as to prevent an insulative medium sealed within the pressure receiving space from being electrically charged.
G01L 7/00 - Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
G01L 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
G01L 19/00 - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE - Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
To provide a stepping motor which can precisely and reliably detect stopping of a rotor with respect to a stopper with a simple structure, i.e., positioning of a base point of the rotor, and provide a motorized valve using it.
The stepping motor includes a stator 55 and a rotor 57 rotationally driven by the stator 55, and a detection rotor 47 detecting a rotation position of the rotor 57. The detection rotor 47 is rotatably disposed on a co-axial center L with the rotor 57 and rotationally driven via a rotation drive mechanism between the rotor 57 and the detection rotor 47. The rotation drive mechanism has a drive play having a predetermined length or angle in the rotation direction.
H02P 8/32 - Reducing overshoot or oscillation, e.g. damping
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
H02K 37/00 - Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
A solenoid valve is provided with a valve main body having a valve chamber communicating with an inlet port and a first outlet port, a valve body arranged within the valve chamber, a valve holder retaining the valve body, a coil spring energizing the valve holder, a pipe member having a second outlet port communicating with the valve chamber, a suction element surrounding the pipe member, a coil bobbin winding an electromagnetic coil, and a mold cover surrounding a whole of the coil bobbin, integrated with the valve main body, and defining the valve chamber. The valve holder has a tube body facing to the suction element, and a small tube portion formed smaller in diameter than the tube body, pierced a fluid insertion hole in an intermediate portion, and having a retention portion retaining the valve body in an inner side of a leading end.
The invention provides an electrically operated valve which can control a flow rate precisely at a small flow rate distributing time and can circulate a fluid so as to prevent a pressure loss as much as possible at a large flow rate distributing time without an increase of a working and assembling cost. A movable valve seat body forming a main valve port for forming a small flow rate flow path extending from a first inlet and outlet to a second inlet and outlet is arranged between a valve chamber and a lower chamber. The movable valve seat body is structured such that its lower portion is slidably fitted and inserted to the lower chamber, and such as to serve as a float type check valve body for opening and blocking a large flow rate flow path extending from the second inlet and outlet to the first inlet and outlet.
B60T 8/36 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
F16K 31/04 - Operating means; Releasing devices magnetic using a motor
H02K 5/10 - Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. of water or fingers
A composite valve has a communication path communicating a first valve chamber with a second valve chamber, a second valve port communicating the second valve chamber with an outflow port, and a pilot passage communicating a back pressure chamber with the outflow port. In the case that a lift amount of a second valve body for a small flow rate control is equal to or less than a predetermined amount, the pilot passage is closed by a pilot valve body, and a first valve port is closed by a first valve body, thereby taking a small flow rate control state. In the case that the lift amount of the second valve body goes beyond the predetermined amount, the pilot valve body is moved up in conjunction with the upward movement of a valve shaft so as to open the pilot passage, thereby taking a large flow rate control state.
F16K 31/04 - Operating means; Releasing devices magnetic using a motor
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 31/363 - Operating means; Releasing devices actuated by fluid in which fluid from the conduit is constantly supplied to the fluid motor the fluid acting on a piston
F25B 41/06 - Flow restrictors, e.g. capillary tubes; Disposition thereof
A composite valve has a communication path, a second valve port and a pilot passage. First and second valve bodies are arranged to be moved up and down in the same direction, and are away from each other only at a predetermined distance. In the case that a lift amount of the second valve body for a small flow rate control is equal to or less than a predetermined amount, said pilot passage and a first valve port are respectively closed by a pilot valve body and the first valve body, thereby taking a small flow rate control state. In the case that the lift amount of said second valve body goes beyond said predetermined amount, said pilot valve body is moved up by the upward movement of a valve shaft to open said pilot passage, thereby taking a large flow rate control state.
F16K 31/12 - Operating means; Releasing devices actuated by fluid
F16K 31/04 - Operating means; Releasing devices magnetic using a motor
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
F25B 41/06 - Flow restrictors, e.g. capillary tubes; Disposition thereof
To provide a small motor-operated valve which can control a high flow, there is provided a motor-operated valve of which a body has an orifice, seat and a valve element provided opposite to the seat. The valve element is operated by a driver which is driven to rotate by an output gear to which the rotation of a rotor having been reduced by means of a mechanical paradox planetary gear mechanism is transmitted. To force the valve element in the direction in which the valve is opened, a coil spring is disposed in a bore formed in the upper portion of the body oppositely to a bush.
In the case that a lift amount of a second valve body for controlling a small flow rate is equal to or less than a predetermined amount, a pilot passage is closed by a pilot valve body, and a first valve port is closed by a first valve body for controlling a large flow rate, thereby taking a small flow rate control state in which a flow rate is controlled in correspondence to the lift amount of the second valve body, and in the case that the lift amount of the second valve body goes beyond the predetermined amount, the pilot valve body is moved up in conjunction with an upward movement of a valve shaft so as to open the pilot passage, thereby taking a large flow rate control state in which the first valve body opens the first valve port on the basis of this.
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
F25B 41/06 - Flow restrictors, e.g. capillary tubes; Disposition thereof
A valve apparatus includes a valve main body provided with a first inlet and outlet, a valve chamber to which a valve port is open, and a second inlet and outlet connected to the valve port. A valve shaft having a valve body portion for opening and closing the valve port is provided in the valve chamber. A relief valve is provided within the valve body portion to relieve a pressure of the valve chamber to the second inlet and outlet when a fluid pressure of the refrigerant within the valve chamber becomes a predetermined pressure or more in a fully closed state in which the valve port is closed by the valve body portion, thereby to automatically relieve a fluid within a valve chamber without causing a cost increase and an enlargement of size.
F16K 17/38 - Safety valves; Equalising valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
F25B 41/06 - Flow restrictors, e.g. capillary tubes; Disposition thereof
The invention provides a motor-operated valve including a planetary gear mechanism achieving a greater reduction gear ratio without increasing the number of teeth of the gears, thereby enabling downsizing. In a planetary gear mechanism 1, a sun gear 91 functioning as an input gear receives smaller load than an internally toothed output gear 45, so gears (second planet gears 95) having a smaller module are connected to the planet gears 93, and the sun gear 91 is in engagement with the second planet gears 95. The sun gear 91 is formed of a same module as the second planet gears 95. The rotation of the sun gear 91 is reduced in speed and transmitted to the second planet gears 95, and rotation of the second planet gears 95 rotated at a reduced speed is further reduced by the slight difference in the numbers of teeth of the ring gear 44 and the internally toothed output gear 45 before being output.
A female screw member includes a female screw part with a female screw, and a projection part projecting in the direction of a center shaft of the female screw and having a working face in the rotating direction centering on the center shaft. The female screw part and projection part are integrally molded with a resin. The projection part has a spiral inclination face spirally inclining by one round from the working face centering on the center shaft of the female screw. The height H of the working face is equal to or smaller than a pitch P of the female screw. Using the projection part as a fully opening fixing stopper, a motor operated valve includes a valve main body having a valve seat, the female screw member attached to the valve main body, a motor having a rotator and stator, and a valve shaft. The valve shaft is screwed to a female screw of the female screw member, and is rotated and driven by the rotor, and has a fully opening movable stopper capable of contacting the fully opening fixing stopper.
A multi-way reversing valve includes a valve housing having a valve seat part in which a plurality of fluid in/out ports are formed; a valve member adapted to be rotated; and an actuator adapted to rotationally actuate the valve member. A fluid inlet port and/or a fluid outlet port is/are formed in the valve housing. A passage adapted to selectively place the fluid inlet port or the fluid outlet port in communication with the plurality of fluid in/out ports is formed within the valve member. Flow paths are reversed by rotating the valve member to selectively place the fluid inlet port or the fluid outlet port in communication with one of the plurality of in/out ports via the passage. The rotational axis line of the valve member is laterally eccentric relative to the rotational axis line of an output shaft of the actuator by a predetermined distance.
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
93.
Flow reversing valve and heat pump device using same
A flow reversing valve includes a reversing valve main body adapted to assume a first circulatory state where a first main valve part is in a fully-open state and a second main valve part is in a fully-closed state and a second circulatory state where the first main valve part is in a fully-closed state and the second main valve part is in a fully-open state; and a flow regulating valve adapted to regulate the pressures of the respective back pressure chambers and of the first main valve part and the second main valve part. The flow regulating valve places the reversing valve main body in the first circulatory state by gradually reducing the pressure of the back pressure chamber of the first main valve part, and in the second circulatory state by gradually reducing the pressure of the back pressure chamber of the second main valve part.
F16K 31/12 - Operating means; Releasing devices actuated by fluid
F16K 11/074 - 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 pivoted closure members with flat sealing faces
F16B 13/04 - Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
F16K 31/124 - Operating means; Releasing devices actuated by fluid the fluid acting on a piston servo actuated
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
F16K 31/04 - Operating means; Releasing devices magnetic using a motor
F16K 31/05 - Operating means; Releasing devices magnetic using a motor specially adapted for operating hand-operated valves or for combined motor and hand operation
F16K 15/18 - Check valves with actuating mechanism; Combined check valves and actuated valves
94.
Channel switching valve and heat pump system using the same
A rotary type channel switching valve for use in a heat pump system is provided. The channel switching valve provides a plurality of channel switching means required when switching connection of a plurality of devices to parallel/series connection, e.g., in a system including the plurality of devices including inlet/outlet ports for a fluid. The channel-switching valve can play a role of a plurality of channel switching means which are required when connecting a plurality of heat exchangers in parallel when a refrigerant is passed in a normal direction, and when connecting a plurality of heat exchangers in series when the refrigerant is passed in a reverse direction, for example, in a heat pump including the plurality of heat exchangers, and thereby, can realize simplification of a configuration of the heat pump, reduction in an occupied space, cost and energy consumption, or the like.
B01D 15/00 - Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
F16K 11/074 - 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 pivoted closure members with flat sealing faces
F16K 11/00 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid
F16K 11/02 - 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
F16K 31/04 - Operating means; Releasing devices magnetic using a motor
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 of the high-pressure passage portion 55 of the valve member 50 is made to slide while being pressed against a portion between the first inlet/outlet 13 and the second inlet/outlet 14 in the valve seat portion 65. There is formed between the first inlet/outlet 13 and the second inlet/outlet 14 of the valve seat portion 65 an escape passage portion 69 comprising a groove, notch, through-hole or the like for allowing the high-pressure refrigerant of the high-pressure passage portion 55 to escape to the side of the valve chest 61 during the transitional phase of flow path switching.
F16K 11/06 - 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
A drain pump that maintains pump performance and reduces noise and vibration accompanying water scooping of a rotary impeller includes a large-diameter blade divided into an inner blade and an outer blade. A radius of an impeller scooping up water is the sum of the lengths of the inner and outer blades in a radial direction. The large-diameter blade is divided at a position where the amount of generated air bubbles is large, and the inner and outer blades are alternately disposed. Accordingly, air bubbles are escaped to a downstream side in a rotational direction, so that the intensity of the collision between the blades and air bubbles is decreased reducing noise caused by the burst of air bubbles and vibration caused by a collision load of the flow of a gas-liquid mixture.
c thereof, the mountainous-wave portion having the shape of concentric circles when viewed in a plan view and having N+(0.25 to 0.75) elevated portions that protrude upward or downward when viewed in cross section, where N is a positive integer (1, 2, 3, . . . ).
A motor-operated valve configured to control the flow rate during a normal flow and pass the fluid so as to minimize pressure loss during a reverse flow, and a refrigeration cycle using the same, are provided. It is configured such that during a normal flow, the fluid is made to flow only from between the main valve member and the orifice to perform flow rate control, and during a reverse flow, all or a majority of the fluid is made to flow to a bypass channel without being passed through the orifice to decrease pressure loss as much as possible. A check valve member which closes the bypass channel during a normal flow and opens it during a reverse flow is provided in the valve main body.
f) and the valve opening is altered to control the flow rate of the refrigerant. The valve body (21) consists of a body upper portion (40) and a body lower portion (41) narrower than the body upper portion (40), and bolt fitting grooves (43, 43) opening in the flank of the valve body (21), preferably opening obliquely downward, are formed at the boundary (42) of the body upper portion (40) and the body lower portion (41). With such a layout, the material required at the boundary (42) can be reduced furthermore and the quantity of material required for the valve body (21) can be reduced furthermore, as a result. Since the opening width (minimum spatial dimension) w is smaller than the diameter of bolt, a seating surface is assured sufficiently around the bolt fitting groove (43) and the bolt does not drop off from the bolt fitting groove (43).
patents
