273results about "Spring arrangements" patented technology

A valve member for a spring-loaded valve assembly includes a top portion having a spring retaining recess, the spring retaining recess extending into the top portion to form a void space, the void space to receive at least one coil of a spring, the spring retaining recess having a recess diameter that is smaller than a top portion diameter, wherein the recess diameter is larger than a rest diameter of a spring base including the coil, the spring retaining recess blocking expansion of the at least one coil when the spring is compressed. The valve member also includes a bottom portion coupled to the top portion. The valve member further includes a sealing element positioned axially below a shoulder of the top portion and legs coupled to the bottom portion.

A pneumatic valve comprises an actuator with a movable closing element being disposed in a housing; the closing element with a tappet penetrating an actuator opening between an air chamber formed in the housing and an actuator chamber, and a plate, with a sealing element, for closing the supply opening, thereon, on that end of said tappet protruding into the air chamber, and an elastic element pressing the plate toward the actuator opening in an activated state; the actuator element configured to move, in a non-energized state, the activating element to press the tappet against a supply opening, and in an energized state to move the activating element so as not to exert force on the tappet so that the plate is pressed in the direction of the actuator opening by the elastic element. A sealing collar disposed about the tappet seals the air chamber from the actuator chamber.

An electronically controlled regulator may include a pressure regulating valve, which may include a discharge pressure regulating unit that adjusts a pressure of a fluid by changing a distance between a valve body and a valve seat while reciprocating a valve shaft by a valve shaft moving structure using a feed screw, a slidable piston that receives a fluid pressure in a discharge pressure chamber, and a spring that constantly biases the valve shaft in a valve closing direction. At the time of valve closing, the fluid pressure received by the piston may be converted into a pressure load in a direction of pressing the valve body, and at a time of pressure adjustment, a positional deviation of the valve shaft due to a backlash provided at a meshing portion of the feed screw may be avoided by a biasing force of the spring.

The invention discloses a valve assembly, a liquid storage device, a refrigerator door and a refrigerator. The valve assembly comprises a valve body, a valve element and an elastic piece. The valve body is provided with a valve cavity, an inlet end and an outlet end, and the inlet end and the outlet end communicate with the valve cavity. The valve element comprises a flow guide part and a sealing part. The flow guide part is slidably arranged in the valve cavity, and a flow guide channel is formed between the flow guide part and the valve body. The sealing part is fixedly arranged on the flow guide part and abuts against or is separated from the inlet end of the valve body so as to close or open the flow guide channel. Wherein an installation part is arranged on the inner wall of the valve body, the flow guide part is provided with an installation matching part corresponding to the installation part, the installation part can slide relative to the installation matching part so that an installation cavity isolated from the flow guide channel can be formed between the flow guide part and the valve body, and the elastic piece is arranged in the installation cavity and connected between the valve element and the valve body. According to the valve assembly, the elastic piece can be prevented from being eroded by fluid in the flow channel of the valve assembly, so that the service life of the elastic piece is prolonged, and cost is saved.

A valve includes a valve housing defining a fluid flow passage, a valve seat extending into the fluid flow passage, a valve poppet mechanically coupled to a valve stem, the poppet engages and disengages with the valve seat, a spring extending around a portion of a periphery of the valve stem, the spring extends and contracts to close and open the fluid flow passage, the valve stem having a spring abutting surface, a pocket positioned within the fluid flow passage and having a body extending from a closed end to an open end; the spring extends through the open end when in an extended state, and when the spring is in a contracted position, the open end of the pocket abuts with the spring abutting surface of the valve stem to seal the spring within the pocket.

A pressure equalization apparatus comprises a main element, a sealing device, and a connection device for connecting the main element and the sealing device. The sealing device sealingly bears against the main element when the pressure equalization apparatus is in a closed state and is fixed relative to the main element via the connection device. A fixing connection between the main element and the sealing device which is formed thereby can be released in order to unblock a fluid connection between the interior of the pressure equalization apparatus and surroundings of the pressure equalization apparatus. The connection device comprises a spring element, the spring force of which acts in particular in a direction extending crosswise to an opening direction of the pressure equalization apparatus.

A 3-way solenoid valve, a vehicle brake system including the 3-way solenoid valve, and a controlling method for the same are disclosed. The present disclosure in at least one embodiment provides a brake system for a vehicle, including one or more wheel cylinders configured to apply braking pressure to each of wheels of a vehicle by using hydraulic pressure, one or more of the 3-way solenoid valve configured to increase or decrease the hydraulic pressure supplied to the one or more wheel cylinders, and a braking device configured to supply the hydraulic pressure to the one or more wheel cylinders by using a stepping force applied to a brake pedal or driving of a hydraulic pump.

The present invention relates to the technical field of valves, and in particular to a hard-sealed high-pressure resistant valve structure, comprising a valve body, an upper cover, an upper shell and a valve core; further comprising a screw, a torque-limiting joint, a driving shaft, a coupling, a handwheel, an opening and closing assembly and a threaded block assembly; a balancing hole which passes through from top to bottom is arranged on the valve core, an opening and closing assembly is installed inside the valve core, the lower end of the screw is rotatably connected to the valve core, the torque-limiting joint is concentrically connected to the lower end of the screw, the torque-limiting joint drives the opening and closing assembly to close or open the balancing hole, the threaded block assembly is installed in the middle of the upper cover, the middle part of the screw is rotatably screwed to the threaded block assembly, the upper end of the screw is concentrically connected to the lower end of the driving shaft through a coupling, the upper end of the driving shaft passes through a sealing assembly on the upper part of the upper shell and extends above the upper shell, and a handwheel is installed on the upper end of the driving shaft; the pressure above and below the valve core is balanced through the balancing hole, so that the opening of the valve core is more labor-saving, the impact force on the downstream pipeline is reduced, the high pressure resistance and the sealing performance are good.

A pipe coupler includes a tubular member internally defining a tubular passage communicable with a front opening and a rear pipe connector thereof; a valve head movably set in the tubular passage for openably sealing the front opening; a retaining ring fitted in the tubular passage adjacent to the rear pipe connector and including a hollow cylindrical section; and a return spring set in the tubular passage between the valve head and the retaining ring. The cylindrical section of the retaining ring has two circumferentially opposite free ends defining an elastically compressible gap between them, and an outer contact surface corresponding to an inner side of the tubular member. The tubular member is internally provided near the rear pipe connector with an annular groove, and the contact surface is provided with a round flange engaged with the annular groove to hold the retaining ring in place in the tubular member.

To reliably and easily secure a large flow rate control of fluid, and necessary durability.SOLUTION: When constituting a proportional solenoid valve comprising a stationary plunger 5 and an elastic restraining part 2 interposed between the stationary plunger and a movable plunger 6 and restraining the movable plunger 6 from moving a direction Fd orthogonal to a center axis direction Fc, an inner edge Si... is offset from an outer edge So... one (Fo) of the center axis directions Fc by predetermined width Ls, and an entirely ring-like plate spring member S... formed to elastically deform the inner edge Si... in the center axis direction Fc is provided to the outer edge So... At least two plate spring members S... are overlaid, so as to constitute the elastic restraining part 2.SELECTED DRAWING: Figure 1

The present invention relates to a pressure control valve (1) for controlling or regulating a pressure of a fluid in a pilot pressure chamber, comprising a valve housing (10) with at least one inlet, which is fluidically connectable to the pilot pressure chamber, and with at least one outlet (O), wherein a main valve chamber (25) and a pilot valve chamber (65) are arranged between the at least one inlet (I) and the at least one outlet (O), an electromagnetic actuating device (70) by which a pilot valve (60) arranged in the pilot valve chamber (65) can be opened and / or closed, wherein a main valve (20) with a main valve seat (50) and a main valve slide (30) with a slide (32) movable along a longitudinal axis (L) is arranged in the main valve chamber (25), wherein the main valve slide (30) is prestressed into a closed position by a main valve spring (26),in which the main valve spool (30) cooperates sealingly with the main valve seat (50), wherein the main valve spool (30) comprises the spool (32) and at least one sealing element (41, 42) which is spring-supported on the spool (32), and wherein the at least one sealing element (41, 42) can cooperate sealingly with the main valve seat (50). Furthermore, the present invention relates to a vibration damper with a pressure control valve (1).

An orthoplanar spring for a hydraulic tensioner which has a flat, closed position, in which a flat center portion of the orthoplanar spring seals the inlet hole between the oil supply and the high pressure chamber of the tensioner and an open deformed position in which the flat center portion of the orthoplanar spring moves a distance to unseal the inlet hole such that fluid flows from the inlet supply through the openings in the orthoplanar spring and around the flat center portion to the high pressure chamber.

Various embodiments of the present disclosure relate to a normally open piezoelectric micro-electro-mechanical system (MEMS) device. A first end of the cantilever is overlying and bonded to the substrate, and also has a second end opposite the first end and overlying the actuator cavity. The piezoelectric actuator is located on the cantilever. A valve vane is engaged to the second end of the cantilever and further overlies a valve cavity laterally adjacent to the actuator cavity. The cantilever is bent downwards from the first end to the second end, so that the valve blade is inclined, and the valve cavity is opened. Actuation of the piezoelectric actuator bends the cantilever upwardly to close the valve cavity. The embodiment of the invention also discloses a semiconductor structure and a forming method thereof.

A pressure relief valve includes a valve body having an inner wall defining a cylindrical bore. The inner wall includes a threaded region having a plurality of threads. The valve includes a pressure control calibration spring including a calibration portion and a force application portion. The calibration portion is threaded into the threads of the threaded region. The valve body includes an aperture in fluid communication with the cylindrical bore. An inner perimeter of the aperture defines a valve seat. A valve member is receivable on the valve seat. The force application portion urges the valve member into engagement with the valve seat and has a pitch that is greater than a pitch of the calibration portion. Rotation of the calibration portion in the threads of the threaded region of the valve body adjusts the spring force applied to the valve member by the force application portion.

A spring return cartridge for a rotary actuated valve includes a torsion spring having a spring load intermediate portion extending between a first end and a second end, and a spring carrier covered by the torsion spring. The spring carrier includes a first portion rotatably fixed to the first end of the torsion spring and a second portion rotatably coupled to the second end of the torsion spring. The second portion of the torsion spring is rotatable relative to the spring carrier and relative to the first end of the torsion spring between a first rotational limit position and a second rotational limit position. The intermediate portion of the torsion spring biases the second end of the torsion spring to the first rotational limit position and maintains a spring loaded state at the first rotational limit position.

A pressure equalization apparatus, including a housing with a gas passage opening which is assigned a valve with a valve body which is loaded with spring force by a spring. The valve body is held by the spring in a holding position, in which the valve body makes sealing contact with a valve seat. The valve body is configured to be snapped in a manner which is dependent on a differential pressure and by the spring force of the spring into an open position, in which the valve body is open and lifted up from the valve seat.

Various embodiments of the present disclosure are directed to a normally-open piezoelectric microelectromechanical systems (MEMS) device. A cantilever has a first end overlying and bonded to a substrate and further has a second end, opposite the first end, overlying an actuator cavity. A piezoelectric actuator is on the cantilever. A valve vane is bonded to the second end of the cantilever and further overlies a valve cavity laterally adjacent to the actuator cavity. The cantilever curves downward from the first end to the second end, such that the valve vane is inclined and the valve cavity is open. Actuation of the piezoelectric actuator curves the cantilever upward to close the valve cavity.

The electromagnetic valve comprises a valve body, a coil assembly and a magnetic conductor, at least part of the magnetic conductor is located between the coil assembly and the valve body; the electromagnetic valve comprises a connecting piece connecting the magnetic conductor and the valve body; the coil assembly comprises a first recess, the first recess forms a first opening on the lower wall of the coil assembly, the first recess forms a second opening on the side wall of the coil assembly, and the first opening is directed to the upper wall of the magnetic conductor; the electromagnetic valve has a containing part, the wall forming the containing part comprises the inner wall of the first recess and the upper wall of the magnetic conductor, and the coil assembly and the magnetic conductor have at least two relative installation positions, in at least one of the relative installation positions, the limiting end of the connecting piece is located in the containing part, which is beneficial to reduce the volume of the electromagnetic valve and realize miniaturization of the electromagnetic valve.

To improve durability and production economics, the present disclosure provides a fuel gas blocking device doubling as a flow passage, the device including a supply body part having a flow passage formed therein to supply a fuel gas and provided with a supply port having a sealing step formed therein on one side thereof, a solenoid body of which a front end is hermetically fastened to the supply port and a rear end extends rearward such that a coil part is provided on an outer side thereof, and in which a hollow is formed in a longitudinal direction, and a flow passage cover in which a first flow passage is formed in the longitudinal direction is provided at a rear end of the hollow, a flow passage plunger inserted into a front end of the hollow, selectively moving rearward when power is supplied to the coil part, and having a second flow passage formed therein in the longitudinal direction, a spring that is provided between the flow passage cover and the flow passage plunger and provides an elastic restoring force in a direction in which the flow passage plunger moves forward, and a gap poppet part that is provided at a front end of the flow passage plunger and selectively seals the sealing step when moving forward.

The invention provides a flow regulating mechanism in an electronic expansion valve, and belongs to the technical field of machinery. The flow adjusting mechanism in the electronic expansion valve comprises a rotor, an upper sleeve, a valve seat and a valve needle, a cavity is formed in the valve body, the valve seat is cylindrical and fixedly connected to the lower portion of the valve body, an inlet communicated with an inner cavity of the valve seat is formed in the side portion of the valve seat, an outlet communicated with the inner cavity of the valve seat is formed in the lower end of the valve seat, and the upper sleeve is fixedly connected into the rotor. The lower end of the lead screw is connected with the upper end of the valve needle, the upper end of the lead screw is located in the upper sleeve and is in threaded connection with the upper sleeve, the lower end of the valve needle is located in the valve seat, the valve needle blocks the outlet in the initial state, the outlet can be opened after the valve needle moves upwards, and a connecting assembly capable of preventing the valve needle from rotating is further arranged in the valve body. The flow regulating mechanism in the electronic expansion valve can enable the valve needle to move up and down smoothly.

A plug assembly that is configured to secure a plug tip to a valve stem, These configurations may include a clamp that secures to an end of the valve stem. The clamp encloses at least part of the plug tip. In one implementation, the design may include a spring assembly that generates a pre-load on the top of the plug tip, as well. The clamp is useful because it accommodates plug tips made from ceramics and like, brittle materials. Its features can prevent certain mechanical failure, for example, cracks or breaks that can occur during manufacture or assembly. As an added benefit, the device can maintain alignment of the plug tip with the valve stem. This feature can ensure proper engagement with a seat in a flow control, like a control valve.

The present disclosure provides an electric valve, including: a valve seat, the valve seat having an end surface and a slot; a valve body, a portion of the valve body penetrating in the valve seat, and another portion of the valve body protruding from the end surface; a coil portion sleeved over the valve body, the coil portion and the slot being respectively located on two sides of the end surface; and a connection portion, the connection portion including a connection member and a support member and a clamping member arranged on the connection member. The connection member is fixedly connected to the coil portion, the support member abuts against the end surface, and the clamping member is clamped with the slot.

The invention relates to a pressure relief valve with a valve seat (2) and a valve disc (4) which can be moved into a first position in which it is in contact with the valve seat (2) and the pressure relief valve is closed, and into a second position in which the pressure relief valve is open, characterized in that the pressure relief valve has at least one locking element (14), at least one spring element (16) and at least one recess (18), wherein the at least one locking element (14) is held in the at least one recess (18) by the at least one spring element (16) when the valve disc (4) is in the first position and is moved out of the at least one recess (18) against a force applied by the spring element (16) when the valve disc (4) is moved from the first position to the second position.

A valve system (1) of an aircraft, including a valve member (2) in a conduit (4) of an aircraft. The valve member (2) is coupled to an actuation shaft (6). An electric motor (8) is arranged to apply a torque to the actuation shaft (6). A torsional spring (10) is coupled to the actuation shaft (6) and is configured to apply a torque to bias the valve member (2) open.

The invention relates to a pressure control valve (1) for controlling or regulating the pressure of a fluid in a pilot pressure chamber, having a valve housing (10) with at least one inlet, which can be fluidically connected to the pilot pressure chamber, and at least one outlet (O), wherein between the at least one inlet (I) and the at least one outlet (O) is a main valve chamber (25) and a pilot valve chamber (65), and having an electromagnetic actuation device (70), by means of which a pilot valve (60) located in the pilot valve chamber (65) can be opened and / or closed, wherein the main valve chamber (25) is equipped with a main valve (20) comprising a main valve seat (50) and a main valve slide (30) which can be moved in a longitudinal axis (L) and which comprises a slide (32), and the main valve slide (30) is pretensioned, by means of a main valve spring (26), into a closed position, in which the main valve slide (30) sealingly interacts with the main valve seat (50). The main valve slide (30) comprises the slide (32) and at least one seal element (41, 42) which is supported on the slide (32) in a spring-loaded manner, and the at least one seal element (41, 42) can sealingly interact with the main valve seat (50). The invention additionally relates to a vibration damper having a pressure control valve (1).

The valve box device comprises a shell and an electromagnetic valve, the shell comprises a shell main body, a connecting part and a flow guide part, the shell main body and the flow guide part are located on the two sides of the connecting part respectively, the shell main body is provided with a containing cavity, the connecting part is provided with a communicating cavity, the flow guide part is provided with a flow guide cavity, and the communicating cavity is communicated with the flow guide cavity. The flow guide part is further provided with a communication channel, one end of the communication channel is communicated with the flow guide cavity, a valve port is formed in the other end of the communication channel and can be communicated with the communication cavity, the electromagnetic valve comprises a valve body and a valve element, the valve body is arranged in the containing cavity, and the valve element is arranged in the valve body. A part of the valve element can stretch into the communicating cavity, and the valve element is used for opening or blocking the valve port. The number of parts in the valve box device is relatively small, and the structural form and the assembling process of the valve box device can be simplified.

An orthoplanar spring for a hydraulic tensioner which has a flat, closed position, in which a flat center portion of the orthoplanar spring seals the inlet hole between the oil supply and the high pressure chamber of the tensioner and an open deformed position in which the flat center portion of the orthoplanar spring moves a distance to unseal the inlet hole such that fluid flows from the inlet supply through the openings in the orthoplanar spring and around the flat center portion to the high pressure chamber.

The present invention provides an eccentric noise-reduction two-way check valve, comprising: a housing (1); an eccentric valve body (3) which is mounted in the housing (1) and comprises a push element fixing seat (31); and a push element (4) mounted on the push element fixing seat (31) and constructed to push the eccentric valve body (3) in a direction in which the two-way check valve is closed, wherein the push element fixing seat (31) is arranged to be eccentric relative to the housing (1). The present invention can quickly eliminate abnormal noise with lower costs, without adding additional parts.

Various embodiments are disclosed for a two-way valve. A two-way valve includes a valve body and a valve assembly couplable to the valve body. The valve assembly includes a first valve component and a second valve component. The first valve component is actionable to allow or prevent a first fluid flow through the apparatus in a first direction and the second valve component is actionable to allow or prevent a second fluid flow through the apparatus in a second direction opposite the first direction.

The present invention relates to a ventilation structure for a refrigerant recovery unit. To address the lack of protection for the springs of the intake and / or exhaust valves of a conventional refrigerant recovery unit when impacted by liquid refrigerant, the present invention provides the following solution. The ventilation structure for a refrigerant recovery unit includes a valve seat (1) with an air hole, a valve body (2, 2A) axially movable relative to the air hole, a compression spring (7, 7A) attached to the valve body, and a protection unit (6, 6A) mounted on the valve seat. The protection unit has an annular wall (621) surrounding the compression spring, with a predetermined distance between the compression spring and the valve seat. The region of the protection unit located between the compression spring and the valve seat forms a radial ventilation passage. The beneficial effect of the ventilation structure for a refrigerant recovery unit of the present invention is that it reduces or avoids the impact of liquid refrigerant on the compression spring due to radial airflow.