448results 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.

Devices, systems, and methods for a valve assembly for a medical device. The valve has a cap, a stem which moves within a valve body, and a spring member between the cap and the valve body to move the valve within the body. The valve stem and / or spring member are made of a degradable material, which may be a metal. The degradable material has a higher degradation rate than conventional metal valve components to reduce the environmental impact of disposing of the valve.

A valve including a valve body having at least two inlets and an outlet configured to be in fluid communication with the at least two inlets; an adjusting portion associated with the valve body, the adjusting portion providing a stop structure; a piston in fluid communication with the at least two inlets and the outlet; a thermostatic element configured to assist with moving the piston in response to engaging with the stop structure, the piston being configured to regulate fluid flow from the at least two inlets to the outlet; and a return spring configured to assist with biasing the thermostatic element; and a mixing part provides assistance with mixing fluid from the at least two inlets to the outlet, wherein the mixing part is integrally formed with valve body.

The present disclosure provides a switching valve which includes a valve body provided with a water inlet channel, a first water outlet, and a second water outlet, wherein the valve body is internally provided with a first water outlet chamber and a second water outlet chamber; a driving component having a plug end, wherein the driving component is slidably connected between the first water outlet chamber and the second water outlet chamber; a reset component configured to control the driving component to return to a position where the plug end contacts the end portion of the side wall of the second water outlet chamber, such that the valve body is automatically switched from the second water outlet state to the first water outlet state. After the use of the second water outlet state, the driving rod is controlled to automatically return to the first water outlet state.

A multi-waterway rotary control valve used for controlling water output of a pump comprises a valve body, a switching mechanism and a waterway mechanism. A plurality of valve element seats are arranged at the top of the waterway mechanism at intervals in the circumferential direction, and a plurality of waterway channels are formed in the bottom of the waterway mechanism and communicate with at least one valve element seat; the switching mechanism comprises a rotating piece, a switching disc, a plurality of valve elements and a plurality of magnetic attraction supports. The switching disc is mounted in the mounting cavity, and the valve element is mounted on the switching disc and used for movably opening and closing the waterway channel where the corresponding valve element seat is located; the switching disc is in sliding connection with the magnetic attraction supports on the radial outer sides of the installation holes respectively. The rotating piece is rotatably mounted above the switching disc, a switching ring with an inner convex block and an inner concave part is arranged at the bottom of the rotating piece, and the switching ring rotates to drive the corresponding magnetic attraction support to move inwards or outwards in the radial direction of the switching disc to enable the magnetic core of the valve element to move so as to open and close the water channel; the pure mechanical structure of the switching ring drives the magnetic attraction supports to move, then the magnetic core is magnetically attracted to move, power supply is not needed, and the cost is low.

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.

Pneumatic valve, comprising a housing (1) in which an air chamber (2) is formed with a supply opening (3) for supplying compressed air into the air chamber (2), a connecting opening (4) connected to the air chamber and an actuator opening (5) for connecting the air chamber (2) to an actuator chamber, wherein an actuator (6) with a movable closing element (7) is arranged in the housing (1), wherein the closing element (7) is formed with a plunger (11) projecting through the actuator opening (5), at the end of which projecting into the air chamber a plate (11a) is formed, on which a sealing element for closing the supply opening (3) is arranged, and with an elastic element (10; 10a) which presses the plate (11a) in the direction of the actuator opening (5) in the activated state of the pneumatic valve, the actuator (6) further features: - a circuit board (12) arranged in the actuator chamber, - an actuating element (13) arranged in the actuator chamber, which has an actuating section (14) for acting on the plunger (11) and a bending section (15) connected to the actuating section (14) and the circuit board (12), and - an actuator element (16) arranged in the actuator chamber, which has a first end that is mechanically connected to the actuating section (14) and a second end that is mechanically and electrically connected to the circuit board (12), wherein the actuator element (16) is configured to bring the actuating element (13) into a first state in an unenergized state, in which it presses the plunger (11) against the supply opening (3), and in an energized state to bring the actuating element (13) into a second state in which the actuating section (14) exerts no force on the plunger (11), so that, due to the action of the elastic element (10), the plate (11a) is pressed in the direction of the actuator opening (5), characterized by that a sealing sleeve (30) is arranged between the plate (11a) and the actuator opening (5) around the plunger (11), which seals the air chamber (2) against the actuator chamber in every state.

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.

The invention relates to the field of automobile fuel tank valves, in particular to an exhaust valve suitable for a longitudinal compact fuel tank, which comprises a shell, a group of cavities are arranged in the shell, each cavity comprises a liquid inlet cavity, an air outlet cavity and a runner cavity, the bottom of each liquid inlet cavity is provided with a runner inlet extending out of the bottom of the shell, and the air outlet cavity is provided with an air outlet communicated with the outside of the shell; the runner cavity is communicated with the liquid inlet cavity and the air outlet cavity; a sliding cavity allowing the floating body to slide longitudinally is formed in the liquid inlet cavity, and the floating body is arranged in the sliding cavity; an exhaust port is formed in the upper end, corresponding to the sliding stroke of the floating body, of the liquid inlet cavity and communicates with the liquid inlet cavity and the flow channel cavity; the plug is movably arranged in the air outlet cavity, the plug blocks the opening between the air outlet cavity and the flow channel cavity in a natural state, and a first elastic element is arranged at the lower end of the plug so that the plug can elastically abut against the lower end of the opening. The leakage-proof performance and the longitudinal compactness of the exhaust valve can be improved, and the exhaust valve adapts to a longitudinal compact oil tank.

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.

An externally adjustable pressure modulating valve is disclosed. In one example, the valve has a valve body extending along a valve axis and defining a plunger cavity extending axially into a first end of the valve body. A valve spool is retained in the valve body and is movable along the valve axis. An input plunger is slidable axially in the plunger cavity between a resting position and an actuated position. An external adjustment mechanism is configured to adjust the modulation spring force when the input plunger is fully actuated. In one example, the adjustment mechanism includes a threaded sleeve in the plunger cavity, where rotating the threaded sleeve changes the mechanical stop of the input plunger.

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).

The invention relates to the technical field of valves, in particular to a hard sealing high-pressure-resistant valve structure which comprises a valve body, an upper cover, an upper shell and a valve element. A vertically-through balance hole is formed in the valve element, the opening and closing assembly is installed in the valve element, the lower end of the screw is rotationally connected with the valve element, the torque limiting connector is concentrically connected with the lower end of the screw, and the torque limiting connector drives the opening and closing assembly to close or open the balance hole. The threaded block assembly is installed in the middle of the upper cover, the middle of the screw is rotationally connected with the threaded block assembly in a threaded mode, the upper end of the screw is concentrically connected with the lower end of the driving shaft through the coupler, the upper end of the driving shaft penetrates through the sealing assembly on the upper portion of the upper shell and extends out of the upper portion of the upper shell, and the hand wheel is installed at the upper end of the driving shaft. The pressure above and below the valve element is balanced through the balance hole, so that the valve element is opened in a more labor-saving manner, the impact force on a downstream pipeline is reduced, and the high pressure resistance and the sealing performance are good.

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.

The present disclosure relates to a thermostatic valve (1) comprising: - an outer body (2, 6) defining: - an inlet (3) for a fluid; and - an outlet (4i, 4o) for the fluid; - a thermostatic adjustment group (5, 7, 8), comprising at least a flow diverting body (5) having a first position and a second position; - a first channel (11 ) and a second channel (10), defining respective paths and respective flow rates of the fluid at equal pressure difference between said inlet (3) and said outlet (4i, 4o); wherein the thermostatic adjustment group (5, 7, 8) comprises a first elastic element (7), a size and / or deformation force (F) thereof is variable according to a temperature (T, T1, T2) assumed by said fluid, and wherein, in use, a movement between the first position and the second position is determined by the temperature of the fluid, and wherein when the flow diverting body (5) is in the first position, the thermostatic adjustment group (5, 7, 8) allows the flow of the fluid in the first channel (11), and when the flow diverting body (5) is in the second position, the thermostatic adjustment group (5, 7, 8) allows the flow of the fluid in the second channel (10), which defines a respective fluid flow rate greater than the flow rate defined by the first channel (11), or allows the flow of the fluid both in the second channel (10) and in the first channel (11).

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.