The invention relates to a pressure control valve, composed of at least a valve component; situated between a control chamber and a return chamber, the valve component has an orifice, which a control element can close, partially close, or open, and the control element has at least one, at least truncated cone-like first control element region with a truncated cone angle and the orifice is formed by a through opening, which extends through the orifice element and at its end oriented toward the control element, has at least one cone-like, in particular first, orifice region with a cone angle; and the cone angle is greater than the truncated cone angle.

A pneumatic valve includes a housing, a first port, a second port, and a third port, each in communication with an interior of the housing, a coil assembly coupled to the housing, a plunger axially movable within the housing between a first position and a second position in response to electrical current being driven through the coil assembly, and a permanent magnet configured to retain the plunger in at least one of the first position or the second position.

A seat valve with electromagnetic actuation combines, in one device, the functions of a seat valve, of a pressure-limiting valve and optionally also of one or more check valves. Furthermore, the switching noise of the seat valve function is reduced. In a de-energized state of an electromagnet, a fluid flow from a port P to a port TNC occurs only if a pressure difference between the ports P and TNC exceeds a limit value of p.sub.G, wherein the force of the specified pressure difference overcomes the force of a spring and therefore pushes a first sealing body out of a first sealing seat, and in the energized state of the electromagnet, a fluid flow from port P to port TNC occurs even in the case of a pressure difference less than p.sub.G if the force of the electromagnet together with the force of the pressure difference between the ports P and TNC overcomes the force of the spring, wherein the sum of the specified forces pushes the first sealing body out of the first sealing seat. The seat valve may be used in hydraulic brake systems of vehicles, also in vehicle gear mechanisms or in hydraulic drives.

Provided is a valve device in which a valve body can come into close contact with a valve seat to reliably close the valve even if a shaft moves slightly off-axis or tilted. In a valve device including: a housing 10 defining an upstream passage 12a and downstream passages 13a and 14a through which a fluid passes, and valve seats 11d and 11e interposed between the upstream passage and the downstream passages; a shaft 60 reciprocating along a predetermined axis S; and valve bodies 20 and 30 fixed to the shaft and seated on and separated from the valve seats, the valve seats 11d and 11e are formed into annular tapered surfaces forming a part of conical surfaces centered on the axis, and the valve bodies 20 and 30 are formed to include convex curved surfaces 22a and 32a that come into contact with the annular tapered surfaces when seated.

An oil control valve assembly includes a valve body and a controller coupled to an exterior end of the valve body. The controller includes a solenoid housing attached to the exterior end of the valve body, and defines an interior region. An encapsulated coil assembly is disposed within the interior region of the solenoid housing. A housing seal is disposed within the interior region of the solenoid housing, in sealing engagement with the solenoid housing, the valve body, and the encapsulated coil assembly. The housing seal is operable to seal the interior region of the solenoid housing to prevent fluid communication between the solenoid housing and the valve body. An adapter assembly is coupled to the valve body to reposition a discharge location of a supply port, a control port, and an exhaust port of the valve body along a longitudinal axis of the valve body.

A bypass valve and a valve assembly including a bypass valve are disclosed. The bypass valve includes a manifold having 4 ports and a valve stem including two sealing elements disposed along the valve stem length. The valve stem may be displaced to a first valve position and a second valve position to selectably place combinations of ports in fluid communication with each other.

A valve assembly includes a valve body with an interior cavity and one or more supply ports, a control port, and an exhaust port each fluidly connected to the interior cavity. An armature assembly is movable within the interior cavity from a first position to a second position in response to the coil being energized. In some configurations, a regulator body, which is connected to the valve body, has an exhaust passage fluidly connected to the exhaust port. A regulator valve in the regulator body prevents fluid flow out of the exhaust passage when fluid pressure on the regulator valve is at or below a pilot pressure. The regulator valve permits fluid flow out of the exhaust passage when fluid pressure on the regulator valve is greater than the pilot pressure. The valve body is configured to provide fluid from the supply port/ports to the control port.

An oil control valve assembly includes a valve body and a controller coupled to an exterior end of the valve body. The controller includes a solenoid housing attached to the exterior end of the valve body, and defines an interior region. An encapsulated coil assembly is disposed within the interior region of the solenoid housing. A housing seal is disposed within the interior region of the solenoid housing, in sealing engagement with the solenoid housing, the valve body, and the encapsulated coil assembly. The housing seal is operable to seal the interior region of the solenoid housing to prevent fluid communication between the solenoid housing and the valve body. An adapter assembly is coupled to the valve body to reposition a discharge location of a supply port, a control port, and an exhaust port of the valve body along a longitudinal axis of the valve body.

Provided is a capacity control valve that can be produced with good workability and at a low cost. A capacity control valve includes: a valve housing in which a flow passage is formed; and a valve body disposed inside the valve housing and driven by a solenoid. A valve seat member having a tubular shape and including a valve seat on which the valve body is seatable is press-fitted into the valve housing, and at least the valve seat of the valve seat member is harder than the valve housing.

An electromagnetic actuator with at least one solenoid coil, one armature, which is magnetically movable by means of the solenoid coil in an armature area and has a first and a second tapering, and a magnetic yoke. The yoke has a first dipping stage in which the first tapering of the armature is dipped upon a shifting of the armature in a direction of actuation, and a second dipping stage in which the second tapering of the armature is dipped upon a shifting of the armature in the direction of actuation. A maximum radial external dimension of the armature in the area of the second tapering is smaller than a minimum radial internal dimension of the second dipping stage. In addition, the invention refers to a fluid valve that is actuated by means of the electromagnetic actuator.