A check valve includes a valve element and a valve body having a body housing, an annular valve seat insert, a bushing, and a biasing member. The body housing includes an outer circumferential wall extending between an inlet port and an outlet port to define a valve cavity therebetween. The valve seat insert is seated in a body seat surface surrounding the inlet port. The bushing is disposed in the valve cavity and defines a central bore, with the bushing including an outboard end surface axially engageable with the valve seat insert. The biasing member is disposed between a bearing portion of the body housing and an inboard end of the bushing to allow for axial movement of the bushing with respect to the body seat surface. The valve element extends through the bushing central bore and is movable between a closed position and an open position.

A fluid valve having a magnetic drive unit for a valve closing body is provided. The drive unit can include a core, a coil partially surrounding the core, and an armature movable by the energization of the coil and the resulting magnetic force, wherein a bearing portion can be provided at the armature, which bearing portion comprises a bearing area, by which the armature is pivotably mounted on a main body of the drive unit.

A solenoid valve including a non-sliding plunger assembly. The solenoid valve disclosed herein generally includes a plunger assembly that is moveably suspended within an internal chamber of a housing of the solenoid valve away from any sliding contact with adjacent surfaces. The plunger assembly may not be in sliding contact with any of the adjacent surfaces, and thus a radial gap may be defined between the plunger assembly and all non-moving, non-flexing features and surfaces of the solenoid valve. The solenoid valve may include a flexural washer that is resiliently flexible and is configured to enable selective axial movement of the plunger assembly in response to energizing the solenoid coil. In various embodiments, the flexural washer is configured to moveably suspend the plunger assembly within the internal chamber away from any sliding contact with adjacent surfaces.

A valve including a valve assembly and a solenoid assembly. The solenoid assembly is coupled to the valve assembly to actuate the valve assembly. The solenoid assembly includes a movable armature engaged with a poppet of the valve assembly. A plate spring having a spring force is positioned between the valve assembly and the solenoid assembly that is configured to bias the valve member of the poppet into engagement with a valve seat. Based on the spring force of the plate spring and the voltage or current that is applied to the solenoid coil, the solenoid assembly is configured to control a distance that the valve member moves relative to the valve seat to proportionally control an amount of flow that is permitted through the valve assembly.

A valve including a valve assembly and a solenoid assembly. The solenoid assembly is coupled to the valve assembly to actuate the valve assembly. The solenoid assembly includes a movable armature engaged with a poppet of the valve assembly. A plate spring having a spring force is positioned between the valve assembly and the solenoid assembly that is configured to bias the valve member of the poppet into engagement with a valve seat. Based on the spring force of the plate spring and the voltage or current that is applied to the solenoid coil, the solenoid assembly is configured to control a distance that the valve member moves relative to the valve seat to proportionally control an amount of flow that is permitted through the valve assembly.

A valve (1) with a valve housing (2) and valve openings (3), and with a closing element (5) and at least one valve drive (6). Thee valve also has two mutually opposite flanges (9, 10) each having a passage opening (11). The flanges can be moved towards and away from one another by the valve drive and are force-coupled to the closing element with respect to the movements of the closing element and in the fully opened position of the closing element are pressed against the wall regions (4) of the valve housing and thus the passage openings of the flanges connect the valve openings together. The two flanges (9, 10) each include a sequence of fingers (12) and recesses (13) arranged in between, and the fingers surround the passage openings and the fingers of the one flange engage in the respective recesses of the other flange.

A piezo valve for influencing a fluid flow, with a strip-shaped piezo bender which is arranged in a fluid channel and which includes a band-shaped carrier layer and a band-shaped actuator layer applied thereto and which is pressed with a first surface by a spring against a front bearing blade and a rear bearing blade and on a second surface facing away from the first surface with a seal which seals a valve seat in a functional position. The valve seat serves as an orifice opening of a fluid channel section is formed, in which the first surface is formed either by the carrier layer or by the actuator layer and the seal in the first functional position optionally on the valve oil seat or releases the valve seat.

A valve device includes an operating unit, a first pushing member, a plate-like member, a second pushing member, and a valve. The plate-like member includes a plurality of the moment arms arranged at intervals in a circumferential direction. A force point of each of the plurality of the moment arms is pushed by a front end of the first pushing member. The second pushing member has an acted surface receiving a force from an action point of each of the plurality of the moment arms. The plurality of the moment arms are integrally connected by an annular frame portion of the plate-like member where the fulcrum is disposed.

A spool valve includes a sleeve with multiple axial ports positioned over the length of the sleeve and an adjustable spool component that couples neighboring ones of the sleeve's ports based on a position of the spool component within the sleeve. The adjustable spool component includes multiple sub-components having positions that are adjustable relative to each other such that the dimensions of the spool component can be tailored to precisely match the corresponding sleeve.

A valve includes: a seat member having a supply passage through which working fluid is supplied; a valve body configured to be seated onto an annular seat portion of the seat member, the valve body being configured to close the supply passage; and a spring serving as a biasing member configured to bias the valve body towards the seat portion, wherein the valve body receives a biasing force from the spring, the biasing force containing a force component in the direction perpendicular to the center axis of the seat portion.