A valve having a valve body to which an actuator can be fastened is specified, the valve body including at least a first and a second housing part made of plastic, a first fluid duct being formed in the first housing part and a second fluid duct being formed in the second housing part, and at least one of the two fluid ducts opening out at a valve seat, and at least one elongated, rectilinear stiffening element being inserted in sections both into the first housing part and into the second housing part, and the at least one stiffening element being at least approximately perpendicular to a plane in which the at least one valve seat extends.

A control valve for controlling the exhausting of a purge gas from a fuel cell assembly, comprising a valve body having a valve member therein moveable between a first position and a second position, an inlet port for receiving a purge gas from the fuel cell assembly and an outlet port for providing an outlet for the purge gas, the valve member configured to, in the first position, prevent purge gas from flowing between the inlet port and the outlet port and, in the second position, allow the flow of purge gas between the inlet port and the outlet port, the valve body including a drain port adapted and arranged in the valve body to allow liquid to drain out of the valve body, the drain port configured to close when the valve member is in the second position.

A servo valve includes a fluid transfer valve assembly comprising a valve body having a supply port and a control port (C1). The valve body has first and second nozzles and a drive member therebetween, arranged to regulate flow of fluid from the supply port to the control port in response to a control signal. The assembly also includes a drive assembly comprising a magnetic coil and a core passing through the coil and configured to move axially with respect to the coil when the coil is powered by a current dependent on the control signal, the drive assembly arranged to move the drive member relative to the first and second nozzles in response to the control signal.

An evaporative emissions control system includes a first vent valve configured to selectively open and close a first vent, a second vent valve configured to selectively open and close a second vent, a fuel level sensor configured to sense a fuel level in the fuel tank, a pressure sensor configured to sense a pressure in the fuel tank, an accelerometer configured to measure an acceleration of the vehicle, and a controller configured to regulate operation of the first and second vent valves to provide pressure relief for the fuel tank. The controller is programmed to determine if a refueling event is occurring based one signals indicating the fuel level is increasing, the pressure in the fuel tank is increasing, and the vehicle is not moving, and open at least one of the first and second vent valves based on determining the refueling event is occurring.

A device for regulating the flow of a fluid id formed with a valve housing having at least two valve ports. A first fluid path that extends between the at least two valve ports is formed in the valve housing. A first valve seat is assigned to the first fluid path. A first closing element is arranged to be coupled to the first valve seat to block or release the first fluid path, and an electromagnetic actuating unit for actuating the closing element. The actuating unit has a, first electromagnet and a second electromagnet that are coupled to the closing element via a coupling mechanism. The first and second electromagnets additively act on the closing element to displace the closing element between at least two positions.

Servo gas valve comprising a gas inlet connection, a servo gas connection, a bleed gas connection, a valve body, and first and second valve seats. When a first section of the valve body is pressed against the first valve seat, the gas inlet connection is closed and the servo gas connection and the bleed gas connection are in communication with each other. When a second section of the valve body is pressed against the second valve seat, the gas inlet connection is opened and is in communication with servo gas connection while the bleed gas connection and the servo gas connection are not in communication with each other. The first section of the valve body is configured to allow for self-alignment of the first section of the valve body relative to the first valve seat when the first section of the valve body is pressed against the first valve seat.

A bistable solenoid valve device for a fluid system is provided. The bistable solenoid valve device comprises a bistable solenoid valve. The bistable solenoid valve comprises a permanent magnet. The bistable solenoid valve further comprises an armature displaceable between a first armature position and a second armature position. The bistable solenoid valve further comprises a first switching coil for energization for a displacement of the armature into the first armature position. The bistable solenoid valve further comprises a second switching coil for energization for a displacement of the armature into the second armature position. The bistable solenoid valve further comprises an evaluation device adapted to measure an induced coil voltage, an induced coil current, or both the induced coil voltage and the induced coil current, at one or more of the non-energized switching coils. The evaluation device is further adapted to assess a switching behavior of the armature.

A bistable valve. The valve includes an interior cavity; a first pressure source; a second pressure source; a first post connected to the interior cavity at a first end of the interior cavity; a second post connected to the interior cavity at a second end of the interior cavity; a magnetic shuttle located within the interior cavity; a first electromagnetic coil disposed about the first post; a second electromagnetic coil disposed about the second post; wherein when the first electromagnetic coil is energized, the first electromagnetic coil supplies a magnetic charge to the first post and actuates the magnetic shuttle to move towards the first end of the interior cavity towards the first post and seal the first pressure source.

One embodiment provides a solenoid valve. The solenoid valve includes a fixed core, a movable core and a coil. A first valve seat member and a second valve seat member are fixed in the fixed core, and a valve body member is disposed therebetween. A spring member is interposed between the valve body member and the second valve seat member such that the valve body member is normally seated on the first valve seat member. The valve body member can move away from the first valve seat member to be seated on the second valve seat member, by being pushed by the movable core. And, a guide member holds the valve body member and the spring member to the second valve seat member so as not to move away from the second valve seat member.

A flat spring (70) of a solenoid valve has: an engaging claw (75) which is engaged with an engaging protrusion provided on a movable iron core, and a supporting portion (71) which is installed and fixed between a valve housing and a bobbin. The supporting portion (71) is provided with an attaching claw (72); the attaching claw (72) is attached to an attaching claw holder provided on the bobbin. The engaging claw (75) is provided on a leading end of a pulling portion (73), and a connected portion (74) connects a base end of the pulling portion (73) with the supporting portion (71).