A valve assembly has a housing and a poppet-carrying portion. The housing includes an inlet port, an outlet port, an opening, and a assembly portion including helical grooves. The poppet-carrying portion is configured to be inserted through the opening and engage with the assembly portion. The poppet-carrying portion comprises a poppet head, a closure including protruding arms, convolutions, and a stopping portion. The convolutions extend between the poppet head and the closure and provide compliance such that the poppet head is movable relative to the closure. The stopping portion extends from the closure toward the poppet head and is spaced apart from the poppet head by a maximum compression distance. At a first fluid pressure, the protruding arms engage with the helical grooves, and the poppet head is positioned in a pre-load position that prevents the fluid from discharging through the outlet port.

A trigger-type liquid dispenser includes valve member, which is provided in flow path to control liquid to flow in direction in flow path. Valve member includes intake-side check valve, which permits flow of liquid from container side to pump side and prevents flow of liquid from pump side to container side, and discharge-side check valve, which permits flow of liquid from pump side to nozzle side and prevents flow of liquid from nozzle side to pump side. Discharge-side check valve is formed in umbrella shape that is elastically deformable freely in radial direction and has outer circumferential end configured to contact inner circumferential surface of flow path, with contact force of outer circumferential end with respect to inner circumferential surface of flow path being distributed non-uniformly in circumferential direction.

A valve assembly (300) comprising a valve body (302) and a plunger (304). The plunger (304) is movable through an opening (314) in the valve body from (i) a transit seal position in which an axial bias spring (316) is relatively uncompressed, to (ii) an operating configuration in which the plunger (304) is movable between an operational open position and an operational closed position by or against the axial bias spring (316). In addition, the valve assembly (300) is configured to provide a mechanical restriction to the plunger (304) moving from the transit seal position to the operating configuration.

A trigger-type liquid dispenser includes valve member, which is provided in flow path to control liquid to flow in direction in flow path. Valve member includes intake-side check valve, which permits flow of liquid from container side to pump side and prevents flow of liquid from pump side to container side, and discharge-side check valve, which permits flow of liquid from pump side to nozzle side and prevents flow of liquid from nozzle side to pump side. Discharge-side check valve is formed in umbrella shape that is elastically deformable freely in radial direction and has outer circumferential end configured to contact inner circumferential surface of flow path, with contact force of outer circumferential end with respect to inner circumferential surface of flow path being distributed non-uniformly in circumferential direction.

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 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 valve spring is provided. The valve spring may include a first turn. The first turn of the valve spring may be disposed at a first angular orientation. The valve spring may further include a second turn. The second turn may be disposed at a second angular orientation. The second angular orientation may be different from the first angular orientation.

A solenoid valve has a valve drive which includes an electromagnet, an actuator coupled to a diaphragm mounted for movement between an open position and a closed position by the valve drive, a fluid housing having a valve seat, wherein a fluid channel extends in the fluid housing from a first fluid connection to the valve seat and, proceeding from the valve seat, to a second fluid connection, and the diaphragm which cooperates with the valve seat. A support ring surrounds the actuator and rests against the diaphragm. An entrainment geometry is provided between the support ring and the actuator.

A throttle device includes a coil spring that has a first spring part, a second spring part, and an intermediate hook connecting the first spring part to the second spring part for biasing a throttle valve. The first spring part is engaged with a rotation member coupled to a throttle shaft. The second spring part is engaged with a throttle body. The intermediate hook is configured to engage with a first stopper formed on the rotation member and a second stopper formed on the throttle body. The intermediate hook includes a first part on the first spring part side and a second part on the second spring part side. When the intermediate hook is engaged with the first stopper or the second stopper, the first part abuts on the first stopper or the second stopper.

An electric machine includes a rotor shaft having a first axial bore. A passive valve for temperature-dependent flow control of the coolant is arranged in the first axial bore. The passive valve has a valve body, a valve piston axially movable within the valve body, and a valve cap fixed to the valve piston. A first valve spring biases the valve piston and the valve cap toward a closed position of the passive valve and is arranged between the valve body and the valve piston. A second valve spring formed from a shape memory alloy is arranged between the valve body and the valve cap and expands when a limit temperature is exceeded and forces the valve cap and the valve piston into an open position of the passive valve.