Abstract

A solenoid valve drive control device includes a switching device that provides and interrupts the application of the electric current to the solenoid, a first device that controls the application of the electric current to the solenoid by the switching device to start the application of the electric current to the solenoid at zero cross timing in a power supply period, and a second device that detects a value of an electric current that flows to the solenoid. The application of the electric current to the solenoid is interrupted when the detected value of the electric current reaches a predetermined value, after the zero cross timing. A holding power is generated by discharging energy accumulated in the solenoid through a snubber circuit until another zero cross timing subsequent to the zero cross timing after the application of the electric current to the solenoid is interrupted.

IPC Classes  ?

• F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
• H01F 7/18 - Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
• H01H 47/04 - Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted or with reduced energising current
• F25B 41/04 - Disposition of valves

Abstract

A swaging structure for which swaging process is easy, generation of wrinkles can be prevented, and which has high pressure-resistant performance is provided. In a swaging structure including at least a to-be-swaged member required to have airtightness to a surrounding environment and a swaging member constituted to retain the to-be-swaged member by a swaging processing, the swaging member has an annular side wall surrounding the to-be-swaged member, and a groove is formed in the annular side wall.

IPC Classes  ?

• H01R 43/048 - Crimping apparatus or processes
• H01H 35/34 - Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm
• F16B 17/00 - Fastening means without screw-thread for connecting constructional elements or machine parts by a part of or on one member entering a hole in the other

Abstract

The present invention provides a fluid-related function device capable of suppressing deformation of a connection member and a case part which may adversely be generated by expansion of fluid stored in a space in which spatters at the time of resistance-welding are trapped. A pressure switch includes a space in which spatters generated at the time of projection-welding are trapped. The space is provided between a joint and a cap member. A communication passage brings inside and outside of the space into communication with each other. The communication passages is formed such that it permits fluid to pass through the communication passages and restrains spatters from passing through the communication passages.

IPC Classes  ?

• H01H 35/34 - Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm
• F16K 27/10 - Welded housings
• B23K 11/14 - Projection welding
• B23K 11/00 - Resistance weldingSevering by resistance heating
• B23K 11/20 - Resistance weldingSevering by resistance heating taking account of the properties of the material to be welded of different metals
• B21D 39/04 - Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders of tubes with tubesApplication of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders of tubes with rods
• B23K 103/22 - Ferrous alloys and copper or alloys thereof

Abstract

Each of slide duct devices which are attached to actuators (38A and 38B) constituting each vibration device includes a cableveyor (42A) through which a wire/ductwork material group (WH) is inserted, a guide duct (40A), and a slide rail unit (SLU) slidably supporting the guide duct (40A). A swinging base (12) connected to the actuators (38A and 38B) has a wire/ductwork material alignment mechanism (50) enabling alignment of the wire/ductwork material group (WH) passing through the guide duct (40A) without damaging the same.

IPC Classes  ?

• G09B 9/02 - Simulators for teaching or training purposes for teaching control of vehicles or other craft
• G09B 9/14 - Motion systems for aircraft simulators controlled by fluid actuated piston or cylinder ram
• G09B 9/12 - Motion systems for aircraft simulators
• G09B 9/04 - Simulators for teaching or training purposes for teaching control of vehicles or other craft for teaching control of land vehicles
• G09B 9/05 - Simulators for teaching or training purposes for teaching control of vehicles or other craft for teaching control of land vehicles the view from a vehicle being simulated

Abstract

A pressure sensor includes: a fixed part; a ring-like oscillator that is supported on the fixed part by a plurality of support beams; a plurality of electrodes that are provided on the fixed part and arranged in an oscillating direction of the ring-like oscillator with a gap; electret films that are formed on either one of opposite surfaces of the ring-like oscillator and the electrodes.

IPC Classes  ?

• G01L 9/10 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting 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 by making use of variations in inductance
• G01L 9/12 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting 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 by making use of variations in capacitance
• G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting 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

Abstract

A throttling device which can suppress noise and a refrigeration cycle system are provided. This throttling device (10) is provided with: a valve seat member (2) which comprises a valve port (21); a needle valve (4) which makes it possible to change the opening degree of the valve port (21); and a cylindrical guide member (3) which guides forward and backward movement of the needle valve (4). On the needle valve (4) and the guide member (3), sliding surfaces (34, 46) are formed which face one another across a predetermined gap and which can slide against one another. The gap functions as an intermediate flow path (45) allowing a fluid to pass from the valve port (21) towards the secondary side, and on the sliding surface (46) of the needle valve (4), a concave groove (47) is formed which is a flow path expanded portion that is recessed in the direction away from the sliding surface (34) of the guide member (3) and that expands the width dimension of the intermediate flow path (45).

IPC Classes  ?

• 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 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 17/34 - Excess-flow valves in which the flow-energy of the flowing medium actuates the closing mechanism
• F16K 47/02 - Means in valves for absorbing fluid energy for preventing water-hammer or noise
• F16K 47/04 - Means in valves for absorbing fluid energy for decreasing pressure, the throttle being incorporated in the closure member
• F25B 1/00 - Compression machines, plants or systems with non-reversible cycle
• F25B 41/06 - Flow restrictors, e.g. capillary tubes; Disposition thereof

Abstract

In this throttling device (10) which reduces the pressure of the refrigerant condensed by the condenser in a refrigeration cycle and feeds said refrigerant to an evaporator, locking of a needle valve (4) due to foreign matter is prevented. A cylindrical main body case (1) configures a primary chamber (11) connected to the condenser and a secondary chamber (12) connected to the evaporator, and a valve seat member (2), in which a valve port (21) is formed, and a cylindrical guide member (3), which is integral with said valve seat member (2), are provided in the cylindrical main body case (1). In the guide member (3), a coil spring (6) is provided which biases towards the needle valve (4) and the valve port (21). A guide portion (42a) is provided in an insertion portion (42) of the needle valve (4). The guide portion (42a) and a cylindrical guide surface (31a) of the guide member (3) are brought into line contact with one another to guide the needle valve (4). Multiple sliding parts (S), which engage in said line contact, are provided, and foreign matter is flushed out with the areas between adjacent sliding parts (S) acting as introduction paths (45).

IPC Classes  ?

• 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
• F25B 41/06 - Flow restrictors, e.g. capillary tubes; Disposition thereof

Abstract

In this throttling device (10) which reduces the pressure of the refrigerant condensed by the condenser in a refrigeration cycle and feeds said refrigerant to an evaporator, hunting of a needle valve (4) is prevented and hysteresis in differential pressure/flow characteristics in the high-pressure region are reduced. A cylindrical main body case (1) configures a primary chamber (11) connected to the condenser and a secondary chamber (12) connected to the evaporator, and a valve seat member (2), in which a valve port (21) is formed, and a cylindrical guide member (3), which is integral with said valve seat member (2), are provided in the cylindrical main body case (1). In the guide member (3), a coil spring (7) is provided which biases towards the needle valve (4) and the valve port (21). A blade member (5) is provided on a boss portion (43) of the needle valve (4). A blade (51) of the blade member (5) is brought into contact with a cylindrical guide surface (31a) of the guide member (3) to apply sliding resistance. The blade (52) is displaced by the fluid pressure of the refrigerant flowing from introduction paths (45) to a back pressure chamber (44), decreasing the sliding resistance.

IPC Classes  ?

• 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 47/02 - Means in valves for absorbing fluid energy for preventing water-hammer or noise
• F25B 41/06 - Flow restrictors, e.g. capillary tubes; Disposition thereof

Abstract

A centrifugal pump includes: a rotating blade member including an impeller member and a rotor magnet associated with the impeller member, a main body casing in which the rotating blade member is accommodated, a coil portion that rotates the rotating blade member, wherein the coil portion is located on a periphery of the rotor magnet, and an axial member which is associated with the main body casing, wherein the rotating blade member pivots around the axial member. A clearance, in which the rotor magnet is allowed to move, is provided between the blade member and the rotor magnet.

IPC Classes  ?

• F04D 13/02 - Units comprising pumps and their driving means
• F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven
• F04D 29/048 - Bearings magneticBearings electromagnetic
• A61M 1/10 - Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
• F04D 29/42 - CasingsConnections for working fluid for radial or helico-centrifugal pumps

Abstract

A centrifugal pump includes a rotating blade member including an impeller member and a rotor magnet, a main body casing accommodating the rotating blade member, a coil portion that rotates the rotating blade member is located on a periphery of the rotor magnet, and an axial member associated with the main body casing. The rotating blade member pivots around the axial member. The axial member includes an end portion at axial rotor magnet side, and is fixed at the end portion. The main body casing forms a fluid introducing passage, and is associated with a blade casing accommodating the rotating blade member. An end portion of a bearing portion at an axial fluid introducing passage side is protruded such that the end portion of the bearing portion protrudes from an inner periphery opening portion of the blade casing into the fluid introducing passage.

IPC Classes  ?

• F04D 13/02 - Units comprising pumps and their driving means
• F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven
• F04D 29/048 - Bearings magneticBearings electromagnetic
• F04D 29/42 - CasingsConnections for working fluid for radial or helico-centrifugal pumps
• F04D 29/046 - Bearings
• F04D 29/22 - Rotors specially for centrifugal pumps
• F04D 29/06 - Lubrication
• F04D 29/041 - Axial thrust balancing

Abstract

An actuator includes: an electrostatic actuation mechanism including a stationary electrode and a movable electrode; a first movable part driven by the electrostatic actuation mechanism; a first elastic support part that elastically supports the first movable part; an electret formed in at least one of the stationary electrode and the movable electrode; and a drive control unit that controls application of voltage to the electrostatic actuation mechanism. In the actuator a plurality of stable states are set in which the first movable part is positioned at a stable position at which an electrostatic force generated by the electret matches with an elastic force exerted by the first elastic support part or at a stable position near such stable position. By applying a voltage to the electrostatic actuation mechanism, the first movable part may be displaced from any stable position to another stable position.

IPC Classes  ?

• H02N 1/00 - Electrostatic generators or motors using a solid moving electrostatic charge carrier
• F16K 31/02 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic
• G02B 26/02 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light
• H01H 59/00 - Electrostatic relaysElectro-adhesion relays
• B81B 3/00 - Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes

Abstract

In a method of manufacturing a diaphragm with a contact, contact stocks each forming a movable contact on a stock formed out of a strip-shaped thin metal sheet material, or a rolled material are bonded at predetermined intervals to the stock by resistance welding, for example to form a diaphragm stock with a contact. Next, the stock of a diaphragm with a contact is subjected to continuous blanking with a predetermined diameter from each movable contact as center to produce a diaphragm with a contact.

IPC Classes  ?

• H01H 35/34 - Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm
• H01H 1/06 - Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
• H01H 11/04 - Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
• H01H 1/14 - Contacts characterised by the manner in which co-operating contacts engage by abutting

Abstract

A pressure switch is disclosed. The pressure switch includes a housing and a pressure-receiving chamber that communicates with a duct to which an operating pressure is supplied. The pressure switch also includes a diaphragm assembly with a diaphragm that is displaced in response to a pressure inside the pressure-receiving chamber. The pressure switch also includes a movable contact that comes into contact with a fixed contact accommodated in a center portion of an inside of the housing when the pressure inside the pressure-receiving chamber is above a certain value. One of the movable contact and the fixed contact has radially diverging contact faces that are arranged such that contact between the fixed contact and the moveable contact can be established with at least two of the radially diverging contact faces at the same time.

IPC Classes  ?

• H01H 35/34 - Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm
• H01H 1/06 - Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
• H01H 1/14 - Contacts characterised by the manner in which co-operating contacts engage by abutting

Abstract

This electret element has an electret layer including silicon oxide, and an aluminum oxide protective layer deposited on the electret layer by means of an atomic layer deposition method.

IPC Classes  ?

• H01G 7/02 - Electrets, i.e. having a permanently-polarised dielectric
• H04R 19/01 - Electrostatic transducers characterised by the use of electrets

Abstract

[Problem] To provide a solenoid valve drive control device that can conserve energy and that can suppress noise generated by inrush current by way of eliminating inrush current to stray capacitance of the coil and accumulating energy in a coil. [Solution] A solenoid valve drive control device comprises: a blocking mode in which current to a solenoid 66 is blocked by a switching means 68 when the current flowing to the solenoid 66 detected by a current detecting means 78 reaches a prescribed set current value Ia after current supply to the solenoid 66 is started at time of a zero-cross by the switching means 68 by way of the control of a zero-cross timing generating means 72; and a holding mode that is set so that the current flowing into the solenoid 66 is equal to or greater than a prescribed holding current value Ib by sending a holding current to the solenoid 66 through a snubber circuit 70 during the interval until the time of the next zero crossing after the current supply to the solenoid 66 is blocked by the switching means 68.

IPC Classes  ?

• F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
• H01F 7/18 - Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings

Abstract

Provided is an electromagnetic control valve in which force acting on a valve body (31) is cancelled by the use of a diaphragm (4) and by means of differential pressure, wherein the diaphragm (4) has improved durability and improved resistance to pressure. The diaphragm (4) is constituted by base fabric (4A) and a rubber layer (4B), and a drive shaft connection hole (42a) through which a drive shaft (diaphragm fitting section (324)) is passed is provided inside the inner bead section (42) of the diaphragm (4). The diameter φA' of the drive shaft connection hole (42a) is matched to the diameter of the drive shaft (diaphragm fitting section (324)) which is to be mounted in the drive shaft connection hole (42a). A thin-walled disk section (44) is provided inside the inner bead section (42), and an expandable-diameter hole (44a) is formed at the center of the disk section (44). The expandable-diameter hole (44a) and the disk section (44) are pushed and expanded to form a stretched portion (44A)(Fig. 6(C), (D)), and the stretched portion (44A) is received in a receiving groove (324b) in the drive shaft (diaphragm fitting section (324)). The diameter φA of the drive shaft, the diameter φB of the expandable-diameter hole, and the ratio C of elongation of the base fabric (4A) are set so as to satisfy the relationship of 0.7 ≤ A/(B×C) ≤ 3.0.

IPC Classes  ?

• F16J 3/02 - Diaphragms
• F16J 15/52 - Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall by means of sealing bellows or diaphragms
• F16K 7/12 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with flat, dished, or bowl-shaped diaphragm
• F16K 7/16 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being mechanically actuated, e.g. by screw-spindle or cam
• F16K 7/17 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being actuated by fluid pressure
• F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet

Abstract

Provided is a pressure detection unit in which a waterproof property can be improved. In a pressure sensor, a sealing-resin portion is joined to an outside side surface of an element main body made of stainless steel, aluminum, or nickel such that the sealing-resin portion surrounds a plurality of lead pins. In the pressure sensor, a roughened annular surface portion is provided at a region where the sealing-resin portion is joined on an upper end surface of the element main body so as to be disposed in a manner to partition an external peripheral edge and an internal peripheral edge arranged at the outside side surface of an element main body in the sealing-resin portion.

IPC Classes  ?

• G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting 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
• G01L 19/14 - Housings

Abstract

[Problem] To provide, for the purpose of measuring large flow rates, a flow sensor that has reduced pressure loss compared to a conventional pressure sensor even if a flow rate increases significantly, is not subjected to a high load, has a rotary blade member for flow rate measurement having a bearing not subjected to abrasive wear, makes accurate flowmeter measurement possible, and has a long product lifetime. [Solution] A flow sensor (10) for measuring the flow rate of a fluid, said flow sensor (10) being provided with a flow sensor pipe body (12) through which the fluid flows, a flow sensor body (24) disposed in the flow sensor pipe body (12) in the direction of the flow of the fluid, and a bypass flow path (62) disposed in the flow sensor pipe body (12) in the direction of the flow of the fluid.

IPC Classes  ?

• G01F 1/115 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects using rotating vanes with axial admission with magnetic or electromagnetic coupling to the indicating device

Abstract

A test device includes a base plate configured to move on a slipping floor in X-Y directions by an air bearing, and rotate around a Z axis, a platform connected on the base plate by a movement connecting mechanism, and a magnetizing device disposed on a lower surface of the base plate to face the slipping floor and configured to change a magnetizing force to the slipping floor. The X-Y directions are substantially parallel to the slipping floor, and the Z axis is substantially perpendicular to the slipping floor. The base plate is disposed between the slipping floor and the platform. A magnetizing force of the magnetizing device to the slipping floor when the air bearing operates is stronger than magnetizing force of the magnetizing device to the slipping floor when the air bearing does not operate.

IPC Classes  ?

• G01M 15/00 - Testing of engines
• G09B 9/04 - Simulators for teaching or training purposes for teaching control of vehicles or other craft for teaching control of land vehicles
• G01M 7/02 - Vibration-testing
• G01M 7/06 - Multidirectional test stands
• G09B 9/12 - Motion systems for aircraft simulators
• G01M 17/007 - Wheeled or endless-tracked vehicles
• G09B 9/14 - Motion systems for aircraft simulators controlled by fluid actuated piston or cylinder ram

Abstract

A test device includes a base plate configured to move on a slipping floor in X-Y directions substantially parallel to the slipping floor by an air bearing, and rotate around an axis substantially perpendicular to the slipping floor, and a platform connected to the base plate by a movement connecting mechanism. The base plate is between the slipping floor and the platform. The movement mechanism connected pivotally with the base plate is configured to move on the slipping floor in the X-Y directions, and rotate around the axis. When the base plate is at substantially a center of the slipping floor's upper surface, the tips of the movement mechanism are directed to points on a circle C or points close to C, and a central angle between a line from C's center to one of the tips and a line from C's center to another tip is 120°.

IPC Classes  ?

• G01M 15/00 - Testing of engines
• G09B 9/04 - Simulators for teaching or training purposes for teaching control of vehicles or other craft for teaching control of land vehicles
• G01M 7/02 - Vibration-testing
• G01M 17/007 - Wheeled or endless-tracked vehicles
• G09B 9/12 - Motion systems for aircraft simulators
• F16M 11/12 - Means for attachment of apparatusMeans allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction
• F16M 11/20 - Undercarriages with or without wheels
• G09B 9/02 - Simulators for teaching or training purposes for teaching control of vehicles or other craft
• F16M 11/18 - Heads with mechanism for moving the apparatus relatively to the stand
• G09B 9/05 - Simulators for teaching or training purposes for teaching control of vehicles or other craft for teaching control of land vehicles the view from a vehicle being simulated
• G09B 9/06 - Simulators for teaching or training purposes for teaching control of vehicles or other craft for teaching control of ships, boats, or other waterborne vehicles
• G09B 9/08 - Simulators for teaching or training purposes for teaching control of vehicles or other craft for teaching control of aircraft, e.g. Link trainer
• G09B 9/14 - Motion systems for aircraft simulators controlled by fluid actuated piston or cylinder ram

Abstract

A throttle device (10) for decompressing a coolant cooled by a condenser in a refrigeration cycle, and delivering said coolant to an evaporator, wherein the valve opening position of a needle valve (4) is controlled according to the condensing pressure. The interior of a cylindrical body case (1) which configures a primary chamber (11) connected to the condenser and a secondary chamber (12) connected to the evaporator is provided with a valve seat member (2) in which a valve port (21) is formed, and a cylindrical guide member (3) which is integral with the valve seat member (2). The interior of the guide member (3) is provided with a coil spring (6) for biasing the needle valve (4) to the valve-port (21) side. The guide member (3) guides the needle valve (4) along an axial line (L), and adjusts the aperture of the valve port (21). The gap between the guide member (3) and the body case (1) is configured as a body-side channel (13) for delivering the coolant from the valve port (21) to the secondary chamber (12). The needle valve (4) rear space inside the guide member (3) is configured as an intermediate pressure chamber (44). An intermediate pressure introduction channel (45) introduces coolant from the valve port (21) into the intermediate pressure chamber (44).

IPC Classes  ?

• 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 17/34 - Excess-flow valves in which the flow-energy of the flowing medium actuates the closing mechanism
• F25B 41/06 - Flow restrictors, e.g. capillary tubes; Disposition thereof

Abstract

A throttle device (10) for decompressing a coolant cooled by a condenser in a refrigeration cycle, and delivering said coolant to an evaporator, wherein it is possible to accurately set a minimum gap between a needle valve (4) and a valve port (21). The interior of a cylindrical body case (1) which configures a primary chamber (11) connected to the condenser and a secondary chamber (12) connected to the evaporator is provided with a valve seat member (2) in which the valve port (21) is formed, and a cylindrical guide member (3) which is integral with the valve seat member (2). The interior of the guide member (3) is provided with a coil spring (6) for biasing the needle valve (4) to the valve-port (21) side. A needle section (41) of the needle valve (4) projects from the valve port (21) toward the primary-chamber (11) side. A tip end section (41a) of the needle section (41) contacts a stopper member, and as a result, the position of the tip end section (41a) is set. The position of the stopper member (7) in the axial line (L) direction is adjusted by the amount of screwing relative to the valve seat member (2).

IPC Classes  ?

• F25B 41/06 - Flow restrictors, e.g. capillary tubes; Disposition thereof
• 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

Abstract

In a refrigerant circuit component or valve device, the present invention projection-welds a connector to a cap member and prevents intrusion of spatter into a refrigerant circuit. A-cylinder section in which an inside hole of the connector is open is inserted in an inside hole formed in the center of the cap member. The area between the A-cylinder section and a projection of the connector is used as a spatter generation space. The projection of the connector abuts against the cap member and is projection-welded to form a welded part. The open end of the inside hole of the A-cylinder section is crimped to pressure-join the open end to the open end of the inside hole of the cap member. Spatter is sealed inside the spatter generation space. A portion of the surface layer to which the generated spatter adheres may be removed by machining to provide a spatter-removed structure.

IPC Classes  ?

• B23K 11/14 - Projection welding
• G01L 19/00 - 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 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
• F16L 41/08 - Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of a wall or to the axis of another pipe
• B23K 101/06 - Tubes
• B23K 103/04 - Steel alloys
• B23K 103/22 - Ferrous alloys and copper or alloys thereof

Abstract

When a main body of a sensor chip (1) is in a grounded state, a shield layer (71) constituting a shield electrode formed on a circuit layer (72) is grounded through a resistor (46).

IPC Classes  ?

• G01L 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
• G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting 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 19/14 - Housings

Abstract

A drainage pump which has a pump rotor (12), the pump rotor (12) being configured by including: a plurality of tandem protrusion pieces (20ai) that constitute an agitator body for applying centrifugal force to fluid; protrusion pieces (20bi); an annular outer wall (12PW) that surrounds the periphery of the plurality of protrusion pieces (20ai) adjacent thereto; and a truncated cone-shaped supporting plate (12A) integrally formed with the lower ends of the protrusion pieces (20ai) and lower ends of the outer wall (12PW) and the protrusion pieces (20bi), the supporting plate (12A) having a lower end with a shaft portion (12B) inserted into a suction opening (10a).

IPC Classes  ?

• F04D 1/14 - Pumps raising fluids by centrifugal force within a conical rotary bowl with vertical axis

Abstract

In a pressure-balancing electromagnetic control valve in which the degree of opening of the valve body (31) is proportionally changed by balancing the electromagnetic force of an electromagnetic drive section (5) and the spring force of an adjustment spring (83) and canceling the effects of the difference between the pressure of a first port (11) and the pressure of a second port (21) on the valve body (31), the present invention reduces the length of the valve housing (1) and accurately controls the degree of valve opening by eliminating the effect of the dynamic pressure of fluid in the second port on the plunger of the electromagnetic drive section. The electromagnetic drive section (5), adjustment spring (83) (setup adjustment section (8)), pressure equalization chamber (13) and diaphragm (4) (pressure-sensing section) are provided on the axial line (L) of the valve port (22) on the side of the valve body (31) that is opposite to the valve port (22). A cover (6) through which a connection rod (323) is inserted is provided between the pressure equalization chamber (13) and the plunger (53). The flow of fluid from the pressure equalization chamber (13) to the plunger (53)-side is constricted (controlled) by the gap between the insertion hole (6a) of the cover (6) and the connection rod (323).

IPC Classes  ?

• F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
• F16K 47/04 - Means in valves for absorbing fluid energy for decreasing pressure, the throttle being incorporated in the closure member

Abstract

A fluid control valve which is to be connected to a wet gas flow path and which can control the flow rate of wet gas, being provided with: an introduction passage for introducing wet gas into the fluid control valve; a filter having a mesh for removing foreign matter contained in the wet gas flowing in the introduction passage; a discharge passage which has a valve port disposed in a section upper than the introduction passage and through which the wet gas that has passed through the filter is discharged from the fluid control valve via the valve port; and a valve portion in which the opening and closing of the valve port is conducted by a valving element. In this fluid control valve, the filter is disposed in the lowermost part of the introduction passage.

IPC Classes  ?

• H01M 8/04 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
• F16K 51/00 - Other details not peculiar to particular types of valves or cut-off apparatus
• F16T 1/00 - Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers
• H01M 8/10 - Fuel cells with solid electrolytes

Abstract

　A vibration electrical power generation element (1) is provided with a fixed electrode (11), a movable electrode (12) that is arranged opposite the fixed electrode (11) and is capable of moving relative to the fixed electrode (11), and an ionic liquid (13) provided so as to be interposed between the mutually opposed fixed electrode (11) and movable electrode (12). The motion of the movable electrode (12) due to an external vibration changes the area of an electric double layer (16a) and/or an electric double layer (16b), the electric double layer (16a) being formed so as to sandwich the interface of the fixed electrode (11) and the ionic liquid (13), and the electric double layer (16b) being formed so as to sandwich the interface of the movable electrode (12) and the ionic liquid (13).

IPC Classes  ?

• H02N 1/08 - Influence generators with conductive charge carrier, i.e. capacitor machines
• B81B 5/00 - Devices comprising elements which are movable in relation to each other, e.g. comprising slidable or rotatable elements

Abstract

A device member including a cavity, includes a base member, an interlayer, an upper layer, an opening portion, and a gas-permeable sealing layer. The base member includes a first semiconductor. The interlayer is formed on the base member and is non-conductive. The upper layer is formed on the interlayer and includes a second semiconductor. The opening portion is formed at the upper layer. The gas-permeable sealing layer is formed to seal the opening portion formed at the upper layer. The cavity is formed by removing the interlayer with an etching gas that penetrates through the sealing layer.

IPC Classes  ?

• G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting 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
• H01L 29/84 - Types of semiconductor device controllable by variation of applied mechanical force, e.g. of pressure
• B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate

Abstract

Provided is a caulk structure for which caulking is easy, for which the generation of wrinkles can be prevented, and which excels in pressure resistance. The caulk structure includes at least a member to be caulked for which airtightness with respect to the surrounding environment is required, and a caulked member configured so that the member to be caulked is held by caulking. The caulked member includes an annular side-wall that surrounds the member to be caulked, and the annular side-wall has grooves formed therein.

IPC Classes  ?

• H01H 35/34 - Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm
• F16B 4/00 - Shrinkage connection, e.g. assembled with the parts at different temperatureForce fitsNon-releasable friction-grip fastenings
• F16B 5/00 - Joining sheets or plates to one another or to strips or bars parallel to them

Abstract

　Provided is a fluid-related function device capable of inhibiting deformation of a case component or a connective member which may occur due to expansion of a fluid accumulated in a space for trapping sputter during resistance welding. A pressure switch (1) has a space (β) for trapping sputter produced during projection welding, the space being provided between a joint (10) and a cap member (20). A communicating passage (65) communicates the interior and the exterior of the space (β). The communicating passage (65) is formed so as to allow passage of a fluid while restricting passage of the sputter.

IPC Classes  ?

• H01H 35/34 - Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm
• F16K 27/10 - Welded housings
• B21D 39/00 - Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders
• B23K 11/00 - Resistance weldingSevering by resistance heating
• B23K 11/14 - Projection welding
• B23K 101/12 - Vessels

Abstract

The solenoid coil assembly of a solenoid valve is provided with: a coil section (20) located within a bobbin (21) disposed on the outer periphery of the circular cylindrical section (26) of a valve body section (10); an attractor (24) for closing one end of the circular cylindrical section (26); and a casing (16) for covering and housing the coil section (20) and the resinous bobbin (21). An O-ring (30) seals that gap between the outer periphery of the circular cylindrical section (26) of the valve body section (10) and the inner periphery of the circular cylinder section (22A) of a lower plate (22).

IPC Classes  ?

• F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
• H01F 7/127 - Assembling
• H01F 7/16 - Rectilinearly-movable armatures

Abstract

　This pressure sensor is provided with: a fastening part; a ring-shaped oscillator supported on the fastening part by a plurality of support beams; a plurality of electrodes situated on the fastening part, and arranged at gaps in the oscillation direction of the ring-shaped oscillator; and an electret film formed on either one of the mutually facing surfaces of the ring-shaped oscillator and the electrodes.

IPC Classes  ?

• G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting 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

Abstract

A slide duct device, which is attached to each actuator (38A, 38B) of each vibrating device, is configured to have a cableveyor (42A) in which a wiring/piping material group (WH) is inserted, a guidance duct (40A), and a slide rail unit (SLU) that slidably supports the guidance duct (40A) and is provided with, on an oscillating base (12) that is connected to the actuators (38A, 38B), a wiring/piping material aligning mechanism (50) that aligns, without damaging, the wiring/piping material group (WH) that passes through the guidance duct (40A).

IPC Classes  ?

• B06B 1/12 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of mechanical energy operating with systems involving reciprocating masses
• G09B 9/04 - Simulators for teaching or training purposes for teaching control of vehicles or other craft for teaching control of land vehicles

Abstract

An actuator provided with an electrostatic driving mechanism provided with a fixed electrode and a movable electrode, a first movable part driven by the electrostatic driving mechanism, a first elastic support part for elastically supporting the first movable part, an electret formed on the fixed electrode and/or the movable electrode, and a drive controller for controlling the application of voltage to the electrostatic driving mechanism. The actuator is set with a plurality of stable states, in which the first movable part is positioned at a stable position at which the electrostatic force caused by the electret and the elastic force from the first elastic support part are balanced or at a stable position set near the stable position described above. Applying a voltage to the electrostatic driving mechanism makes it possible to move the first movable part from any stable position to another stable position.

IPC Classes  ?

• H02N 1/00 - Electrostatic generators or motors using a solid moving electrostatic charge carrier

Abstract

Provided is a fluid control valve equipped with an electromagnetic coil configured so as to be positioned easily and such that the position can be changed easily; also provided is a method for securing the valve main body and an electromagnetic coil unit in the fluid control valve. The fluid control valve is equipped at least with: a valve main body, which has a cylindrical outer shape and is connected to two or more connectors through which a fluid flows in and out, and which controls the flow of the fluid by driving an embedded valve member; and an electromagnetic coil, which is mounted on the valve main body in a detachable manner, and drives the valve member. One of the two or more connectors is connected to the cylindrical valve main body so as to be orthogonal to the axis of the valve main body. The electromagnetic coil is wound on a bobbin having a cylindrical body having an insertion hole, which extends in the vertical direction and in which the valve main body is inserted. In addition, one or more notches, which open in the opposite direction from the direction in which the valve body is inserted, are formed in the cylindrical body. When the valve body is inserted into the insertion hole of the cylindrical body of the bobbin, the notches in the cylindrical body engage one of the connectors, thereby positioning the electromagnetic coil.

IPC Classes  ?

• F16K 31/04 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a motor
• F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
• F25B 41/06 - Flow restrictors, e.g. capillary tubes; Disposition thereof

Abstract

　The purpose of the present invention is to shorten the length of a valve housing (1), reduce pressure loss in a second port (21), and prevent oscillation of a valve member (3') in a balanced-pressure solenoid-controlled valve for canceling the effect of a pressure difference between a first port (11) and the second port (21) on a valve body (31), and proportionally varying the opening degree of the valve body (31). An electromagnetic drive part (5), an adjusting spring (83) (a setting adjustment part (8)), a pressure-equalizing chamber (13), and a diaphragm (4) (depressurizing part) are provided along an axis line L of a valve port (22) on the side of the valve body (31) opposite from the valve port (22). Electrical conduction between the valve port (22) and the pressure-equalizing chamber (13) is established by the valve body (31) and the opening hole (31a), longitudinal passage (32a), and transverse passage (32b) (pressure-equalizing passage) of the valve member (3). The valve port (22) and the second port (21) have the same axis. A tapered surface (33d) is formed on the lower end of a valve body (33), and the spherical sliding surface (14b) of a spring-bearing member (14) is brought in contact with the tapered surface (33d) by a compression coil spring (15).

IPC Classes  ?

• F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet

Abstract

Provided is a valve device having a configuration which enables a pipe member to be more easily joined by laser welding to the peripheral wall of a cylindrically shaped valve housing. A solenoid valve (1) is configured in such a manner that the peripheral wall (12) of the plunger tube (10) thereof has a single flat surface portion (13) in which a through-hole (14) is formed, the through-hole (14) connecting the inside and outside of the plunger tube (10) and allowing one end of a first joint (81) to be fitted therein. The first joint (81) is joined by laser welding to the flat surface portion (13) while the one end of the first joint (81) is fitted in the through-hole (14) corresponding to the one end.

IPC Classes  ?

• F16K 27/10 - Welded housings
• B23K 26/21 - Bonding by welding
• F16K 27/00 - Construction of housingsUse of materials therefor
• F16L 41/08 - Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of a wall or to the axis of another pipe

Abstract

Provided is a rotary valve device that can suppress the force for pressing a valve member against a valve seat surface. In a two-way valve (1), the cylindrical section (31) of a valve member (30) has a small-diameter cylindrical portion (31a), a large-diameter cylindrical portion (31b), and a cylindrical portion step surface (31c) formed between the outer peripheral surface (31a1) of the small-diameter cylindrical portion (31a) and the outer peripheral surface (31b1) of the large-diameter cylindrical portion (31b). Also, a valve main body (10) has a valve member support section (15) provided with: a small-diameter hole section (15a) to which the small-diameter cylindrical portion (31a) can rotatably fit; a large-diameter hole section (15b) to which the large-diameter cylindrical portion (31b) can rotatably fit; and a support section step surface (15c) formed between the inner peripheral surface (15a1) of the small-diameter hole section (15a) and the inner peripheral surface (15b1) of the large-diameter hole section (15b). Also, an annular seal ring (38) is provided in the seal space (R) encircled by the outer peripheral surface (31a1) of the small-diameter cylindrical portion, the cylindrical portion step surface (31c), the inner peripheral surface (15b1) of the valve large-diameter hole section, and the support section step surface (15c).

IPC Classes  ?

• F16K 11/074 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement 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 3/06 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing facesPackings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages
• F16K 31/04 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a motor
• F16K 31/53 - Mechanical actuating means with toothed gearing

Abstract

Provided are: a valve device that can effectively secure connection strength at the location of connection by means of welding a copper member and a stainless steel member; and a method for producing the valve device. A motor-operated valve (1) is produced by means of a production method including a welding step such that: a first connector (17) is inserted into a first interconnection hole (11A) that is formed at a valve housing (11) and that interconnects the inside and outside of the valve housing (11), and a second connector (18) is inserted in a second interconnection hole (11B); tube members (55, 56) comprising nickel are sandwiched between the valve housing (11) and the first connector (17) and second connector (18); and laser welding is performed along the peripheral direction of the first interconnection hole (11A) and the second interconnection hole (11B) in a manner so as to form a first welded section (51) and second welded section (52) resulting from stainless steel, copper, and nickel each being melted and then solidified between the valve housing (11) and the first connector (17) and second connector (18).

IPC Classes  ?

• F16K 27/00 - Construction of housingsUse of materials therefor
• B23K 26/21 - Bonding by welding

Abstract

Provided is a pressure detection unit in which waterproof properties can be enhanced. In a pressure sensor (10), an enclosing resin part (68) is joined to an outside surface of a stainless steel, aluminum, or nickel element body (18) so as to surround a plurality of lead pins (34). In the pressure sensor (10), an annular surface-roughening part (7) formed by laser irradiation and disposed so as to partition an external peripheral edge (68a) and an internal peripheral edge (68b) on the outside surface of the element body (18) in the enclosing resin part (68) is provided at the location where the enclosing resin part (68) is joined on a top end surface (18a) of the element body (18).

IPC Classes  ?

• G01L 19/14 - Housings
• G01L 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa

Abstract

[Problem] The object of the invention is to provide the filter device disposed in the moist fluid passage of the fuel cell system in that, water is not adhered and never remains in the filter and when leaving it under the low temperature after the system stops, blockage by freezing the filter can surely be prevented, and the complex control and the heat source such as heaters for the decompression as conventional is unnecessary, and the filter device is cheap and compact. [Resolution Approach] a fluid discharge path 70 in which the fluid that passed the filter 62 is discharged.

IPC Classes  ?

• H01M 8/06 - Combination of fuel cells with means for production of reactants or for treatment of residues
• B01D 53/26 - Drying gases or vapours
• B01D 46/42 - Auxiliary equipment or operation thereof
• H01M 8/0662 - Treatment of gaseous reactants or gaseous residues, e.g. cleaning
• H01M 8/04119 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyteHumidifying or dehumidifying

Abstract

A centrifugal pump includes a main body casing. The main body casing includes an upper main body casing, a lower main body casing fixed to the upper main body casing, and a blade casing. In the blade casing, an interior space S1 formed by the upper main body casing and the lower main body casing is partitioned, and a fluid introducing passage is formed on the upper portion and a rotating accommodating space S2 to accommodate the rotating blade member is formed on lower portion. A joint portion of the upper main body casing, the lower main body casing, and the blade casing is fixed on the state of sealing. A joint portion of the suction side coupling member and the main body casing and a joint portion of the discharge side coupling member and the main body casing 34 are fixed on the state of sealing.

IPC Classes  ?

• F04D 29/62 - MountingAssemblingDisassembling of radial or helico-centrifugal pumps
• F04D 29/42 - CasingsConnections for working fluid for radial or helico-centrifugal pumps
• F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven
• F04D 29/02 - Selection of particular materials
• F04D 29/046 - Bearings

Abstract

In a refrigerant circuit component such as a pressure-sensing device (pressure switch, pressure sensor, etc.) or valve device, the present invention projection-welds a connector (1) to a cap member (2) and prevents intrusion of spatter into the refrigerant circuit. An A-cylinder section (1a) in which an inside hole (1A) of the connector (1) is open is inserted inside an inside hole (2A) formed in the center of the cap member (2). The area between the A-cylinder section (1a) and a projection (11d) of the connector (1) is called a spatter generation space (β). The projection (11d) of the connector (1) is abutted against the cap member (2) and projection-welded to form a weld zone (α). The open end (1A1) of the inside hole (1A) of the A-cylinder section (1a) is crimped to pressure-weld the open end (1A1) to the open edge (2A1) of the inside hole (2A) of the cap member (2). Spatter is sealed inside the spatter generation space (β). It is also possible to remove a portion of the surface layer to form structures from which spatter has been removed by machining areas in which spatter has been generated and is adhering.

IPC Classes  ?

• B23K 11/14 - Projection welding
• B21D 39/00 - Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders
• B23K 11/00 - Resistance weldingSevering by resistance heating
• G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting 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 19/00 - 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

Abstract

(Problem) To provide a test device that has a light platform weight, high rigidity, is able to achieve stable operation with a lightweight base, and is capable of testing and simulations up to a high frequency in a small space and at a low motive force. (Solution) The present invention is provided with: a platform (18) that is coupled onto a base plate (14) by means of a motion coupling mechanism (16) and that is provided with a driven unit (30); and a magnetic attachment device (40) that is disposed in a manner so as to oppose a sliding floor (12) at the bottom surface of the base plate (14) and that can alter the magnetic attachment force with respect to the sliding floor (12). The configuration is such that in an operating state such that the air pressure of an air bearing (34) is high, the state of the magnetic attachment force of the magnetic attachment device (40) being strong with respect to the sliding floor (12) results, and in a non-operating state such that the air pressure of the air bearing (34) is low, the state of the magnetic attachment force of the magnetic attachment device (40) being weak with respect to the sliding floor (12) results.

IPC Classes  ?

• G01M 17/007 - Wheeled or endless-tracked vehicles
• G09B 9/04 - Simulators for teaching or training purposes for teaching control of vehicles or other craft for teaching control of land vehicles

Abstract

(Problem) To provide a simulation device that is capable of simulations up to a high frequency in a small space at a low motive force, manages with a low required space, has a high range of acceleration, has a large torque in the yaw direction, and has a large range of speed and angle in the yaw direction. (Solution) A base plate (14) is coupled to a moving mechanism (50) that enables the top surface of a sliding floor to move freely in a manner able to move in the X-Y direction and able to rotate around the Z axis; and when the moving mechanism (50) is in an initial position state such that, in a plan view, the base plate (14) is at approximately the center position of the top surface of the sliding floor (12), the moving mechanism (50) is provided in a manner so as to be rotatably joined on the base plate (14) in a manner so that the central angles (β) form 120° along a circle (C), and the lines of extension of the tips of the moving mechanism (50) are tangent to the circle (C) or form angles close to the state of being tangent to the circle © when in the initial position state.

IPC Classes  ?

• G09B 9/02 - Simulators for teaching or training purposes for teaching control of vehicles or other craft
• F16M 1/00 - Frames or casings of engines, machines, or apparatusFrames serving as machinery beds
• F16M 13/00 - Other supports for positioning apparatus or articlesMeans for steadying hand-held apparatus or articles
• G01M 17/007 - Wheeled or endless-tracked vehicles

Abstract

A fuel cell system is equipped with a fuel cell that is supplied with an anode gas and a cathode gas and generates electric power. The fuel cell system comprises: an anode off-gas flow path through which anode off-gas discharged from the fuel cell flows; a purge valve provided in the anode off-gas flow path; and a purge control unit that performs a purge stop control for opening and closing the purge valve a predetermined number of times when the fuel cell stops a power generation operation.

IPC Classes  ?

• H01M 8/04 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
• H01M 8/06 - Combination of fuel cells with means for production of reactants or for treatment of residues
• H01M 8/10 - Fuel cells with solid electrolytes

Abstract

[Problem] To provide a contact structure for a switch capable of increasing the contact region, suppressing conduction failure, and improving the operational reliability of the switch by configuring the contact points between the contacts as linear contacts. [Solution] A contact structure for a switch having a pair of contacts opposite each other to open and close the switch by the contacts coming in contact with or separating from each other, wherein the contact surface of one contact is formed into a concave surface provided with projections and recesses while the contact surface of the other contact is formed into a rounded surface, and the projections of the one contact and the rounded surface of the other contact are configured to come in contact with each other.

IPC Classes  ?

• H01H 1/06 - Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
• H01H 35/34 - Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm

Abstract

[Problem] To provide a method for suppressing the generation of tin whiskers due to external stress and a pressure switch obtained by using the method, the method making it possible to reliably and easily suppress the generation of tin whiskers due to external stress occurring on a tin-plated component press-fitted in a plastic housing. [Solution] The problem is resolved by a method for suppressing the generation of tin whiskers due to external stress, the method including a step for press-fitting a plurality of terminals having a tin-plated dowel part in a plastic housing, a step for crimping the press-fitted terminals, and step for thermally treating a connector assembly that has been securely crimped.

IPC Classes  ?

• H01H 35/34 - Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm
• C25D 5/50 - After-treatment of electroplated surfaces by heat-treatment

Abstract

When the main body of a sensor chip (1) is in a grounded state, a shield layer (71) constituting a shield electrode formed on a circuit layer (72) is grounded through a resistor (46).

IPC Classes  ?

• G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting 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

Abstract

[Problem] To provide a device member and a production method therefor, said device member having an expected function as a device and being capable of forming, in a simple step, a cavity having a prescribed shape for an expected purpose, without the risk of a sealing layer penetrating inside the cavity and filling the cavity. [Solution] A device member comprising: a substrate member (12) comprising a semiconductor; an insulating intermediate layer (14) formed on the upper surface of the substrate member (12); an upper surface layer (16) comprising a semiconductor formed on the upper surface of the intermediate layer (14); an opening (18) formed on the upper surface layer (16); and a gas-permeable sealing layer (20) formed so as to seal the opening (18). The cavity (22) is formed by removing the intermediate layer (14) by using etching gas that has been passed through via the sealing layer (20).

IPC Classes  ?

• G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting 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
• B81B 3/00 - Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes
• B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate
• H01L 29/84 - Types of semiconductor device controllable by variation of applied mechanical force, e.g. of pressure

Abstract

An electromagnetic control valve (10) configured so that force acting on a valve body (21) is cancelled by a differential pressure using a diaphragm (3), wherein the pressure resistance and durability of the diaphragm (3) are improved. A needle-like protrusion (231) is formed at the lower end of the piston section (23) of a valve rod (2). An insertion hole (17c1) is formed at the center of a diaphragm guide (17c). The needle-like protrusion (231) is punctured through the center of the diaphragm (3). The needle-like protrusion (231) is inserted through the insertion hole (17c1) of the diaphragm guide (17c). An end of the needle-like protrusion (231) is spot-welded. Puncturing the diaphragm (3) with the needle-like protrusion (231) connects the diaphragm (3) to the valve rod (2) without cutting the base cloth (3A) of the diaphragm (3). Alternatively, a needle-like protrusion (17c2) is formed on the diaphragm guide (17c), an insertion hole (232) is formed in the valve rod (2), and the needle-like protrusion (17c2) is press fitted into the insertion hole (232).

IPC Classes  ?

• F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
• H01M 8/04 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids

Abstract

The invention improves the pressure tightness and durability of the diaphragm (3) in an electromagnetic control valve (10) that is configured to cancel the force acting on the valve body (21) due to differential pressure using a diaphragm (3). A needle-shaped projection (231) is formed on the lower end of the piston section (23) of a valve rod (2), which is the drive shaft. An insertion hole (17c1) is formed in the center of a diaphragm guide (17c). The needle-shaped projection (231) is pierced through the center of the diaphragm (3). The needle-shaped projection (231) is inserted in the insertion hole (17c1) of the diaphragm guide (17c). The end of the needle-shaped projection (231) is spot-welded. The base fabric (3A) of the diaphragm (3) is fixed to the valve rod (2) without being cut by piercing the diaphragm (3) with the needle-shaped projection (231). It is also possible to form a needle-shaped projection (17c2) on the diaphragm guide (17c), form an insertion hole (232) in the valve rod (2), and press fit the needle-shaped projection (17c2) into the insertion hole (232).

IPC Classes  ?

• F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
• H01M 8/04 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids

Abstract

There is provided an expansion valve which, by moving the sub-valve in a valve housing, controls the flow rate of a refrigerant in a first flow direction and releases the refrigerant to flow in a second flow direction, wherein the sub-valve is reduced in weight and a valve port is provided with high accuracy. The sub-valve includes a guide member formed by press work and a valve seat member formed by cutting. The sub-valve is seated on a sub-valve seat of a valve seat ring when the pressure in a main valve chamber is high, and is moved away from the sub-valve seat when the pressure in the main valve chamber is low. The sub-valve is reduced in weight by forming the guide member by press work, and the valve port is formed with improved accuracy by forming the valve seat member by cutting.

IPC Classes  ?

• F25B 41/06 - Flow restrictors, e.g. capillary tubes; Disposition thereof
• F25B 41/04 - Disposition of valves
• F16K 31/04 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a motor

Abstract

[Problem] To provide an inexpensive and compact filter device disposed in a moist fluid flow path of a fuel cell system, wherein water neither adheres to nor remains in a filter, and the filter can be reliably prevented from being clogged due to freezing even when being left under low temperature after the system is stopped, and further, unlike conventional filter devices, complicated control and a heat source such as a defrosting heater are unnecessary. [Solution] A filter device (50) is disposed in a moist fluid flow path of a system in which a fluid has a water content, and is provided with: a fluid introduction path (58) through which the fluid passing through the moist fluid flow path is introduced into a filter chamber (60) from below the filter chamber (60); a filter (62) which is provided with a filter member (66) for transmitting the fluid introduced from the fluid introduction path (58) into the filter chamber (60) therethrough to remove foreign matter in the fluid, and is disposed in the filter chamber (60); a water storage part (72) which is provided below the filter (62); and a fluid discharge path (70) through which the fluid that has passed through the filter (62) is discharged.

IPC Classes  ?

• B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
• B01D 46/42 - Auxiliary equipment or operation thereof
• H01M 8/04 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids

Abstract

The present invention allows a joint, bellows, and an actuation section to be easily combined with the main body of a pressure-activated switch, and the pressure-activated switch to be made small by eliminating the use of a cap or the like at the part where the joint is attached. The bellows (12) is connected with the joint (11) in order to construct a joint unit (1). A slit section (112a) is formed on the base of a hexagonal section (112) of the joint (11), said base part being positioned on a junction section's (111) side. A hexagonal insertion hole (21a) is created on the bottom plate (21) of a reinforcement plate (2), and the hexagonal section (112) is fitted into the insertion hole (21a). An actuation section (4) is combined with the reinforcement plate (2) in order to construct an assembly (10). Fixation claws (22a, 23a) are formed on the reinforcement plate (2). An insertion hole (31a) and a notch section (31b) are formed on the bottom plate (31) of a support case (3). Fixation holes (32a) are created on the back plate (32). The joint (11) is inserted through the insertion hole (31a), and a slit press-fitting section (31c) is press-fitted to the slit section (112a). The fixation claws (22a, 23a) are inserted through the fixation holes (32a) and bent. The corners of the hexagonal section (112) of the joint (11) are swaged toward the support case (3).

IPC Classes  ?

• H01H 35/32 - Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by bellows

Abstract

[Problem] To operate the compressor reliably in the unloaded mode at the minimum capacity without using a magnetic clutch, etc. and to configure the variable capacity compressor to be small. [Solution] A pressure-sensing bellows (16) is disposed inside a bellows-housing chamber (13). A valve body (9) is opened and closed by abutting the valve body (9) against the pressure-sensing bellows (16). The impelling force of a plunger spring (36) is set to be stronger than the impelling force of a valve-opening spring (15). When the electromagnetic coil device (30) is de-energized, the impelling force of the plunger spring (36) causes the pressure-sensing bellows (16) to contact the valve body (9) via the plunger (35). If the suction pressure (Ps) inside the bellows-housing chamber (13) changes, the pressure-sensing bellows (16) is expanded or contracted while the valve body (9) side is kept stationary, allowing the plunger (35) to move freely and keeping the valve body (9) from moving, and unloaded operation is maintained. When the electromagnetic coil device is energized, the valve body side of the pressure-sensing bellows is kept stationary and unloaded operation is maintained.

IPC Classes  ?

• F16K 17/06 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
• F04B 27/14 - Control
• F04B 49/00 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups
• F16K 31/126 - Operating meansReleasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like

Abstract

Disclosed is a pressure-sensitive control valve which reliably minimizes the capacity of a variable capacity compressor in an unload operation without using a magnet clutch, etc., and reduces the size of the variable capacity compressor. A pressure-sensitive bellows (16) is disposed within a bellows storage chamber (13). A ball (11a) is abutted against the pressure-sensitive bellows (16), to open or close a valve body (9) via a stem portion (11). The biasing force of a plunger spring (36) is set to be larger than the biasing force of a valve closing spring (15). When an electromagnetic coil device (30) is not energized, the pressure-sensitive bellows (16) is abutted against a valve main body via a plunger (35) by the biasing force of the plunger spring (36). Depending on the variation of a suction pressure (Ps) within the bellows storage chamber (13), the pressure-sensitive bellows (16) is expanded or contracted with respect to the abutment portion with the valve main body, functioning as a fixed point, so that the plunger (35) is freely moved, but the valve body (9) is not moved, and thus, the unload operation is maintained. Alternatively, when the electromagnetic coil device is energized, the pressure-sensitive bellows (16) is expanded or contracted with respect to the abutment portion with the valve main body, functioning as a fixed point, to maintain the unload operation.

IPC Classes  ?

• F16K 31/10 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet with additional mechanism between armature and closure member
• F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
• F16K 31/126 - Operating meansReleasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like

Abstract

A ball valve and a valve shaft are in a valve chamber. The ball valve opens and closes a valve port. A coil spring arranged in a spring chamber pushes the valve shaft against a diaphragm via a spring bracket of the valve shaft. A cone portion and a flat portion (or a concave portion) inside the cone portion are on the diaphragm. A diaphragm-side end face of the valve shaft is larger in diameter than the flat portion of the diaphragm. When the diaphragm is initially deformed, a boundary portion interposed between the cone portion and the flat portion abuts on the diaphragm-side end face.

IPC Classes  ?

• F16K 31/00 - Operating meansReleasing devices
• F16K 1/00 - 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
• F16K 15/00 - Check valves
• F16K 31/12 - Operating meansReleasing devices actuated by fluid
• F16K 31/36 - Operating meansReleasing devices actuated by fluid in which fluid from the conduit is constantly supplied to the fluid motor
• F01B 31/00 - Component parts, details or accessories not provided for in, or of interest apart from, other groups

Abstract

In a pressure-sensitive device that detects the pressure of fluid introduced into a cap member (2) via a joint (1), the joint (1) and the cap member (2) are securely connected. A washer-like nickel plate (3) is interposed between a flange portion (11) of the copper joint (1) and a stainless-steel cap member (21). Laser-welding is performed over the entire circumference of the outer peripheral edge (31) of the nickel plate (3). The nickel plate (3), a part of the flange portion (11), and a part of a flat portion (21) are melt and welded, and form a melt-solidified layer. The melt-solidified layer is formed over the entire circumference around an axis L between the flange portion (11) of the joint (1) and the flat portion (21) of the cap member (2). The melt-solidified layer is formed so as to enter deeply from the outer peripheral edge (31) of the flange portion (11) toward the axis L of the joint (1) between the flat portion (21) and the flange portion (11). The melt-solidified layer (A1) is composed of copper, nickel, and iron that are melt and solidified, and the joint (1) and the cap member (2) are securely welded.

IPC Classes  ?

• G01L 19/14 - Housings
• B23K 20/00 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
• F16L 13/02 - Welded joints
• G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting 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
• H01H 35/34 - Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm

Abstract

Provided is a low-cost and compact filter device which is disposed in a moist fluid passage of a fuel battery system, wherein water is not attached to or does not remain in a filter, and the filter can be reliably prevented from clogging due to freezing even when the filter is maintained under a low temperature after the system is stopped and, additionally, a complicated control, and a heat source such as an unfreezing heater, etc., which have been necessary, are not necessary. The filter device which is disposed in a moist fluid passage of a fuel battery system is provided with a fluid introduction path which introduces fluid passing through the moist fluid passage, a filter through which the fluid introduced from the fluid introduction path passes, to remove foreign substances from the fluid, a fluid discharge path through which the fluid which has passed through the filter is discharged, and a rotary drive mechanism connected to the filter, which rotates the filter to remove substances attached to the filter, using a centrifugal force.

IPC Classes  ?

• H01M 8/04 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
• H01M 8/10 - Fuel cells with solid electrolytes

Abstract

A pressure sensing device for detecting, by means of a pressure detecting section (2), the pressure of a fluid introduced through a joint (1) into a cap member (21) ensures reliable joining of the joint (1) and the cap member (21), and simplification of the production process so as to reduce intermediate storage of goods in process. A washer-like clad member (3) is disposed between a base portion (11) of the joint (1), which is made of brass, and the cap member (21), which is made of stainless steel. The clad member (3) has a first layer (31) made of stainless steel and facing the cap member (21), and a second layer (32) made of oxygen-free copper and facing the base portion (11). The entire periphery of the joining portion of the first layer (31) and the cap member (21) is welded by laser, resulting in formation of a welding mark (7). The entire periphery of the joining portion of the second layer (32) and the base portion (11) is welded by laser, resulting in formation of a welding mark (8). A release mark (8a) is formed to attenuate the output of the laser light while releasing the laser light towards the base portion (11)-side.

IPC Classes  ?

• G01L 19/04 - Means for compensating for effects of changes of temperature
• G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting 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 19/00 - 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

Abstract

A water discharge pump configured in such a manner that, with a cylindrical suction opening (12) immersed in a drain pan, a small impeller (22) within the suction opening (12) is rotated to suck water into the suction opening (12), wherein the quietness is obtained by preventing air from being sucked. The suction opening (12) is provided with a reduced-diameter section (12a) located in the middle of the inside of the suction opening (12) and formed by reducing the inner diameter of the suction opening (12). The reduced-diameter section (12a) is located at a position which is about 30%-50% of the overall length of the small impeller (22) from the lower end (221) of the small impeller (22). The amount of water is controlled by reducing the gap between the suction opening (12) and the small impeller (22) by the reduced-diameter section (12a), and this causes the water within the drain pan to be at a satisfactory level even in a balanced state and prevents air from being sucked. The adhesion of slime is also prevented by a reverse flow at the reduced-diameter section (12a).

IPC Classes  ?

• F04D 1/14 - Pumps raising fluids by centrifugal force within a conical rotary bowl with vertical axis
• F04D 13/00 - Pumping installations or systems
• F04D 29/40 - CasingsConnections for working fluid
• F04D 29/54 - Fluid-guiding means, e.g. diffusers

Abstract

A pressure sensitive device configured in such a manner that the pressure of fluid is detected by a pressure sensing section (2) by introducing the fluid through a female threaded coupling (1) into a pressure container which comprises a cap member (21), wherein the female threaded coupling (1) and the cap member (21) are reliably connected together without brazing and the production process is simplified to reduce the intermediate inventory of products being processed. A stainless steel intermediate coupling (3) is provided between the brass female threaded coupling (1) and the stainless steel cap member (21). A tilted surface (13) is formed between the threaded hole (11) and a cylindrical hole (12) of the female threaded coupling (1). A cylindrical section (31) of the intermediate coupling (3) is fitted in the cylindrical hole (12) of the female threaded coupling (1), and the periphery of the contact section between a flat section (31A) of the cylindrical section (31) and a flat section (21A) of the cap member (21) is welded by laser. A tilted flange section (32) of the intermediate coupling (3) is pressed against the tilted surface (13) by means of a male threaded coupling (5) (FIG. 3) on the piping side to cause the tilted surface (13) and the tilted flange section (32) of the intermediate coupling (3) to be in close contact with each other.

IPC Classes  ?

• G01L 19/00 - 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 elementsTransmitting 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 19/14 - Housings
• H01H 35/34 - Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm

Abstract

A first expansion valve is provided in an outdoor unit, and a second expansion valve is provided in an indoor unit. A pipe line connects a first joint pipe of the first expansion valve and a second joint pipe of the second expansion valve. When a refrigerant flows in from the second joint pipe and flows out from the first joint pipe, the first and second expansion valves are in a full open state due to pressure of the refrigerant. When the refrigerant flows in from the first joint pipe and flows out from the second joint pipe, the first and second expansion valves are in semi-closed state (flow rate controlling state). In a cooling mode, the second expansion valve expands the refrigerant just before an indoor heat exchanger, and in a heating mode, the first expansion valve expands the refrigerant just before an outdoor heat exchanger. In both heating and cooling mode, a large amount of refrigerant flows through the pipe line to reduce pressure loss.

IPC Classes  ?

• F25B 41/04 - Disposition of valves
• F25B 41/06 - Flow restrictors, e.g. capillary tubes; Disposition thereof

Abstract

A pressure-operated control valve having a configuration in which a valve element is pressed against a valve seat by the spring force of a diaphragm and the valve is opened when the diaphragm starts to deform due to a set pressure of fluid, wherein the liquid is prevented from leaking in the initial stage of deformation of the diaphragm. A ball valve (2) and a valve rod (3) are arranged within a valve chamber (13). A valve port (14) is opened and closed by the ball valve (2). A coiled spring (5) is disposed within a spring chamber (16), and the valve rod (3) is pressed against a diaphragm (7) through a spring receiver (31) of the valve rod (3). The diaphragm (7) comprises a cone section (71) and a flat section (72) (or a recessed section) located inside the cone section. The diameter of a diaphragm-side end surface (3A) of the valve rod (3) is set to be greater than the diameter of the flat section (72) of the diaphragm (7). The configuration causes a boundary portion (74) which is the boundary between the cone section (71) and the flat section (72) to make contact with the diaphragm-side end surface (3A) in the initial stage of deformation of the diaphragm (7).

IPC Classes  ?

• F16K 17/04 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side spring-loaded

Abstract

A flow path selector valve for switching between a cooling state and a heating state by rotation of a main valve (3) together with a auxiliary valve (4), wherein rotational operation of the main valve (3) and the auxiliary valve (4) are simplified to make operation of the main valve (3) reliable and to reduce a switching time. An outdoor heat exchanger-side communication passage (31A) and an indoor heat exchanger-side communication passage (31B) are formed in the main valve (3).  An outdoor heat exchanger-side equalizing hole (34a) for connecting the outdoor heat exchanger-side communication passage (31A) to a valve chamber (11) is formed in the main valve.  An indoor heat exchanger-side equalizing hole (34b) for connecting the indoor heat exchanger-side communication passage (31B) to the valve chamber (11) is formed in the main valve (3).  A closing section (43A) for closing the outdoor heat exchanger-side equalizing hole (34a) and an equalizing hole opening section (45B) for opening the indoor heat exchanger-side communication passage (34b) are also formed in the auxiliary valve (4).  A closing section for closing the indoor heat exchanger-side equalizing hole (34b) and an equalizing hole opening section for opening the outdoor heat exchanger-side communication passage (34a) are also formed in the auxiliary valve.  A support section sliding on a auxiliary valve seat (34) is formed on the auxiliary valve (4).  The main valve (3) is rotated 90° by merely operating the auxiliary valve (4) in either forward or reverse directions, and this switches between the cooling state and the heating state.

IPC Classes  ?

• F16K 11/076 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement 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 31/04 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a motor
• F16K 31/53 - Mechanical actuating means with toothed gearing
• F25B 13/00 - Compression machines, plants or systems, with reversible cycle
• F25B 41/04 - Disposition of valves

Abstract

A first expansion valve may be provided in an outdoor unit, and a second expansion valve may be provided in an indoor unit. A pipe line connects a first joint pipe of the first expansion valve and a second joint pipe of the second expansion valve. When a refrigerant flows in from the second joint pipe and flows out from the first joint pipe, the first and second expansion valves are in a full open state due to pressure of the refrigerant. When the refrigerant flows in from the first joint pipe and flows out from the second joint pipe, the first and second expansion valves are in semi-closed state (flow rate controlling state). In a cooling mode, the second expansion valve expands the refrigerant just before an indoor heat exchanger, and in a heating mode, the first expansion valve expands the refrigerant just before an outdoor heat exchanger. In both heating and cooling modes, a large amount of refrigerant may flow through the pipe line to reduce pressure loss.

IPC Classes  ?

• F25B 41/04 - Disposition of valves
• F25B 41/06 - Flow restrictors, e.g. capillary tubes; Disposition thereof

Abstract

A first expansion valve is provided in an outdoor unit, and a second expansion valve is provided in an indoor unit. A pipe line connects a first joint pipe of the first expansion valve and a second joint pipe of the second expansion valve. When a refrigerant flows in from the second joint pipe and flows out from the first joint pipe, the first and second expansion valves are in a full open state due to pressure of the refrigerant. When the refrigerant flows in from the first joint pipe and flows out from the second joint pipe, the first and second expansion valves are in semi-closed state (flow rate controlling state). In a cooling mode, the second expansion valve expands the refrigerant just before an indoor heat exchanger, and in a heating mode, the first expansion valve expands the refrigerant just before an outdoor heat exchanger. In both heating and cooling mode, a large amount of refrigerant flows through the pipe line to reduce pressure loss.

IPC Classes  ?

• F25B 41/04 - Disposition of valves
• F25B 41/06 - Flow restrictors, e.g. capillary tubes; Disposition thereof

Abstract

[PROBLEMS] To provide a quiet and durable pressure type expansion valve for an air conditioner by reducing vibration of a valve body (2) caused by the flow of a refrigerant. [MEANS FOR SOLVING PROBLEMS] In a valve housing (1), an inlet port (11), a valve chamber (1A), and an outlet port (12) are generated. Between the valve chamber (1A) and the outlet port (12), a valve seat part (3) is disposed. On the valve seat part (3), a valve port (31) and an orifice (32) are formed. Surrounding the valve body (2), a coil spring (4) is disposed to hold the valve body (2). A valve opening area of the valve body (2) and the valve port (31) is controlled depending on the differential pressure between a refrigerant pressure in a pressure control chamber (1B) communicated with the valve chamber (1A) and the atmospheric pressure in the inner space (51A) of bellows (51). The orifice (32) is formed inside the outer diameter of the valve body (2), on the opposite side of the inlet port (11). The suction force of the refrigerant flowing through the orifice (32) is made to act on the valve body (2) in one direction. The orifice (32) is positioned inside the coil spring (4). Cutting off the refrigerant by the coil spring (4) equalizes force acting on the valve body (2).

IPC Classes  ?

• F25B 41/06 - Flow restrictors, e.g. capillary tubes; Disposition thereof
• F16K 17/04 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side spring-loaded

Abstract

Disclosed herein is a filter device disposed in the
moist fluid passage of the fuel cell system in that, water is
not adhered and never remains in the filter and when leaving
it under the low temperature after the system stops, blockage
by freezing the filter can surely be prevented, and the
complex control and the heat source such as heaters for the
decompression as conventional is unnecessary, and the filter
device is cheap and compact.

IPC Classes  ?

• B01D 46/42 - Auxiliary equipment or operation thereof
• H01M 8/04119 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyteHumidifying or dehumidifying