186results about "Spring arrangements" patented technology

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.

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 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.

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.

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 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.

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.

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.

A check valve having a valve that is movable by incoming water in the flow direction, from a closed position, where it bears against a first valve seat, against a restoring force into an open position, where it is raised from the first valve seat, and having a pressure relief valve with a closing member that is movable by pressure of the water flowing back against the flow direction, from a closed position, in which it bears against a second valve seat, against a restoring force into an open position where it is raised from the second valve seat. The restoring force acting on the closing member is greater than the restoring force acting on the valve body. The closing member has a closing member core made of a first material, and at least in the partial region thereof that abuts the second valve seat in the closed position, has a film or a layer made of a second relatively softer and / or elastic material.

The invention provides a rigidity-variable exhaust valve which comprises a base, the base comprises a bending part and a side plate assembly, the bending part comprises a first bottom plate, a second bottom plate and a side plate assembly, the first bottom plate and the second bottom plate are fixedly connected, the side plate assembly comprises a first side plate and a second side plate, the first side plate is arranged on one side of the bending part, and the second side plate is arranged on the other side of the bending part; the second side plate is arranged on the other side of the bending piece, and the rotating shaft is rotationally arranged on the side plate assembly; the valve plate is fixedly connected with the rotating shaft, and the valve plate can cover or open the through hole; the spring piece is arranged on the side, away from the first bottom plate, of the valve piece. And the adjusting assembly comprises at least two adjusting rods. According to the exhaust valve with the variable rigidity, the rigidity of the spring piece is adjusted by adjusting the positions of the first adjusting rod and the second adjusting rod in the assembly, the number and the positions of the adjusting rods of the valve body of the exhaust valve with the variable rigidity can be changed according to actual working condition requirements, and the exhaust valve is flexible and adjustable.

Provided is a thermostat device that can minimize the spread of legs of a housing and that can inhibit deterioration in mountability. This thermostat device is provided with: a housing 1 having a valve seat formed thereinside; a thermo-element 17 having one end inserted inside the housing 1; a valve body 15 that is seated on or separated from the valve seat by the extension / contraction motion of the thermo-element 17; a coil spring 16 that biases the valve body 15 toward the valve seat; and a frame 19 that supports one end of the coil spring 16. The housing 1 has a hollow body part 20 which has an opening 20c at one end thereof and which has the valve seat formed thereinside; a pair of legs 21, 21 which stand from the opening edge of the body part 20 and which have the frame 19 hooked on the leading ends thereof; and ribs 22 which are provided at the opening edge and which are contiguous to respective two sides of roots of the legs 21. The outer surface of each of the legs 21 is formed in an arc-shape, and the outer surface of each of the ribs 22 is curved or inclined so as to extend from the outer surface of the corresponding leg 21 toward the inner side of a circle which connects the outer surfaces of the pair of legs 21, 21. (Translation by WIPO)

An aircraft fluid control valve is provided that includes a sleeve, a cap, first and second pistons, and first and second springs. The sleeve includes first and second inner chambers. Fluid inlet and outlet ports are disposed in the first sleeve wall. A high pressure reference port is in fluid communication with the base end and a low pressure reference port is in communication adjacent the cap end. The first piston has a center post, a base flange, and a piston head. The piston head is attached to the center post. The second piston (SP) has a SP center flange and a SP side wall. The SP side wall extends axially between a base end and a cap end. The first spring is disposed between the SP center flange and the cap. The second spring is disposed between the PH base flange and the SP center flange.

A purge valve with an integrated safety function, suitable for an air-drying device. In the purge valve a purge-valve body forms a first exhaust passage for connecting an inlet line to an outlet line. A purge-valve piston is arranged inside the purge-valve body to control a flow of exhaust air through the first exhaust passage upon reception of a purge signal. The purge-valve piston comprises a through opening being configured to form a second exhaust passage for connecting the inlet line to the outlet line. A valve member is arranged in the through opening and is configured to control a flow of exhaust air through the second exhaust passage. The valve member is configured to be actuated by pressurized air when a pressure value in the inlet line exceeds a threshold actuation pressure.

The invention relates to a valve with a valve seat (2) and a valve disc (14) which can be moved into a first position in which it is in contact with the valve seat (2) and the valve is closed, and into a second position in which the valve is open, wherein the valve has at least one spring element (4) and the valve seat (2) can be displaced against a force applied by the at least one spring element (4) by moving the valve disc (14) from the second position to the first position and thereby deforming the spring element (4).

The present invention provides a sealing plate (2) movable in a plane (P) between a sealing position for blocking the flow of a fluid and a flow position for allowing the flow of said fluid; a body (5) including a first half (6) and a second half (7) respectively arranged on either side of said plane (P); a clamping / disengaging system (10) for clamping and disengaging at least one clamping element (11) relative to said sealing plate (2); The present invention relates to an in-line sealing device (1) including: According to the present invention, the clamping / separating system (10) includes a first thrust ring (13), a second thrust ring (14), and at least one assembly (15) elastically deformable by compression, the assembly (15) including a coil spring (16) and a guide shaft (17), the at least one assembly (15) being disposed between the first thrust ring (13) and the second thrust ring (14).

To prevent a gear side end part of a coil spring from being completely detached from a gear side spring locking part in the middle of assembling to a rotating member.SOLUTION: One embodiment is a throttle device including a rotating member coupled to a throttle shaft and rotated by a drive source, and a coil spring interposed between a throttle body and the rotating member and biasing a throttle valve toward a default position. The coil spring has a first spring portion, a second spring portion, and an intermediate hook connecting the first and second spring portions. The intermediate hook can be engaged with a first stopper provided on the rotating member and a second stopper provided on the throttle body, the rotating member has a holding hole at least partially surrounding the first end portion of the first spring portion locked to the first spring locking portion, the first spring locking portion has a locking groove, and the first end portion is fitted to the locking groove.SELECTED DRAWING: Figure 15

The invention relates to the field of oil field downhole operation, in particular to a soft liquid control valve. The check valve mainly solves the problem that an existing valve plate type check valve cannot be opened or is not tightly sealed. The soft liquid control valve comprises a valve body (1), a liquid passing hole (6) is formed in the bottom of the valve body (1), a valve element (2) is arranged in the valve body (1), a longitudinal liquid flow channel is formed in the valve element (2), a sealing seat (4) is arranged in the portion, above the valve element (2), of the valve body (1), and the top of the valve element (2) and the sealing seat (4) are sealed through a conical surface. The valve element of the soft liquid control valve moves in the valve body and is not affected by external factors, the phenomenon that the valve element cannot be opened is avoided, meanwhile, the valve element has the micro-deformation capacity, and the sealing performance is improved.

The air suspension rigidity electromagnetic valve comprises a valve body, a valve element and an electromagnetic driving assembly, the valve element can be axially and movably installed in the valve body, a conical valve seat is arranged at the bottom in the valve body, an exhaust port is formed in the side wall of the valve body, the conical valve seat is communicated with a plurality of air inlets, a first through hole is formed in a yoke, and a second through hole is formed in the yoke. A coil assembly is arranged in the first through hole, a magnetic circuit optimization structure is arranged on the outer surface of the stop iron and comprises a groove and / or a spiral groove, the armature and the auxiliary stop iron are arranged in a first step of the stop iron, a film is arranged between the armature and the inner wall of the first step, the ejector rod penetrates through an inner hole of the auxiliary stop iron, and one end of the ejector rod is connected with the armature. The ejector rod is sleeved with a spring, one end of the valve element is connected with the third step of the auxiliary stop iron in a matched mode, and the end face of the other end of the valve element is wrapped with a sealing gasket in a plastic mode and forms a sealing face. The electromagnetic performance and reliability are remarkably improved, the service life is remarkably prolonged, and meanwhile the process difficulty and cost are reduced.

Float-controlled shut-off device for a rainwater collection tank, comprising a check valve (2) for closing a water inlet (4) with a valve plate (6) which is acted upon at the rear in the direction of the valve seat (7) by the inflowing water and a compression spring (5); characterized in that an axially guided actuating rod (8) is present, which applies force to the valve plate (6) at the front in the direction of the valve open position and an adjustable spring device (9) which exerts an axial force on the actuating rod (8) and a float device (10) which, above a defined water level in the rainwater collection tank, applies force to the valve plate (6) in the direction of the valve seat (7) by means of a lever arrangement (11) acting on the actuating rod (8).

This invention relates to the field of valve assembly technology, and specifically discloses a valve assembly, a pneumatic massage system, and a seat. The assembly includes a valve body, a valve core, and an actuator. The valve body includes a circuit board and has a valve cavity. The valve body has a first medium opening, a second medium opening, and a third medium opening communicating with the valve cavity. The valve core includes a sliding sleeve, a first valve stem, a second valve stem, and a first elastic element. The sliding sleeve is disposed in the valve cavity. The first valve stem is located at one end of the sliding sleeve, and the second valve stem is located at the other end of the sliding sleeve. The first elastic element is connected to the first and second valve stems. The actuator is connected to the circuit board and is used to actuate the sliding sleeve to move between the first, second, and third positions. Through this method, this invention can avoid the simultaneous occurrence of the first valve stem opening the first medium opening and the second valve stem opening the second medium opening, ensuring the air pump's supply pressure to other air bags and thus not affecting the air supply efficiency of other air bags.

A valve device for a vibration damper comprises at least one valve drive which includes at least one coil, at least one ferromagnetic armature which can be actuated by the coil, and at least one housing part, in particular a pole tube, wherein the armature and the housing part have a common longitudinal axis, and the armature is arranged axially displaceably in the housing part, wherein the armature is adapted to interact with a valve slide of the valve device for throughflow control and / or for pressure control of the damper fluid. The valve device comprises at least one preloading element which is fastened in and / or to the housing part, and at least one spring element which is supported on the preloading element and interacts with the armature in such a way that, upon actuation of the armature, the spring element applies a spring force counter to a displacement direction of the armature or in a displacement direction of the armature.

A solenoid valve including a first connection, a second connection, an armature and a coil for moving the armature. The solenoid valve comprises: a first closure part which is coupled to the armature and opens or closes the first connection as a result of a movement of the armature; a second closure part which is coupled to the armature and opens or closes the second connection as a result of the movement of the armature; and a damping spring which is arranged between the first closure part and the second closure part and is configured to dampen the closing process of the first connection and / or the second connection.