A control valve includes a housing, a valve body arranged in a valve chamber of the housing, and a support portion slidably supporting an outer surface of the valve body in the valve chamber. The valve body is slidable on the support portion between an open position at which an outlet port is open and a closed position at which a seat surface of the valve body closes the outlet port. The valve body includes a skin layer forming the outer surface of the valve body, and a core layer under the skin layer. The outer surface of the valve body, other than the seat surface and a slidable area, includes a core exposed portion where the core layer is exposed without being covered with the skin layer.

A poppet switch valve device includes a valve body, a first valve rod including a first valve member, a second valve rod including a second valve member, and a solenoid. When a jig engages with an engagement portion of the first valve rod and rotates the first valve rod so that an internally-threaded hole formed in the first valve rod engages with and moves forward and backward relative to an external thread formed on an outer circumferential surface of the second valve rod, the first valve rod is moved relative to the second valve rod in the axial direction. The poppet switch valve device further includes a restriction portion configured to restrict movement of the first valve rod relative to the second valve rod in the axial direction after the first valve rod is moved relative to the second valve rod in the axial direction using the jig.

A solenoid valve includes an inlet port, an outlet port, a seal member arranged in a channel of a fluid between the inlet port and the outlet port and having an opening, a valve body configured to open and close the opening of the seal member, a first spring configured to bias the valve body against the seal member, electromagnetic driving device, including an umbrella-shaped movable core configured to move the valve body and an electromagnetic coil configured to attract the umbrella-shaped movable core, for operating so as to open the opening of the seal member by attracting the umbrella-shaped movable core, and a second spring configured to exert a spring force in a direction opposite to the first spring, wherein the second spring is provided with rotation preventing device.

A capacity control valve includes: a valve body (10) including first communication passages (11), second communication passages (12), third communication passages (13), and a main valve seat (15a); a valve element (21) including an intermediate communication passage (29), a main valve portion (21b), and an auxiliary valve portion 21c; a solenoid (30) that drives a rod (36) provided with an auxiliary valve seat (23c); a first biasing member (43) that biases in a valve closing direction of the main valve portion (21b); and a second biasing member (44) that biases in a valve closing direction of the auxiliary valve portion (21c), wherein the rod (36) moves relative to the valve element (21) to open and close the auxiliary valve portion (21c). The capacity control valve allows a liquid refrigerant to be efficiently discharged and allows a driving force of a compressor to be decreased.

A multi-way valve includes a control pressure channel, first and second control fluid channels, a valve body in the first and second control fluid channels, and an electrically controlled device having a drive member and an armature. The armature moves back and forth by the drive member between inactive and active positions. Movement of the armature from the inactive to the active position displaces the valve body arrangement to an active position, closing the first and opening the second control fluid channel is open. The electrically controlled device includes a drive body connected to the armature and a first spring member between the armature and the drive body. The valve body arrangement is biased towards the inactive position by a second spring member. The armature in the inactive position is biased towards the active position by a third spring member. Also disclosed is an actuator including the valve.

Disclosed is a solenoid valve which is installed in a bore of a modulator block having a first hydraulic port and a second hydraulic port to control a flow of a braking fluid. The solenoid valve can reduce the number of components by integrating the components and implement a check valve function.

A solenoid valve includes a housing, a valve element provided in the housing to open and close a valve port, and a resin-molded guide member that includes a support portion supporting the valve element to be slidable in an axial direction, and an attachment portion attached to and in contact with an inner side of the housing. The guide member further includes an intermediate joint portion connecting the attachment portion and the support portion. The attachment portion is larger in shape in an orthogonal direction orthogonal to the axial direction than the intermediate joint portion. The support portion extends in the axial direction from the intermediate joint portion. The guide member has an injection-molding gate mark on an outer face of the attachment portion.

An electromagnetic valve has a solenoid, which includes a coil, a plunger, a fixed core, and a plunger spring. The fixed core is E-shaped and has a base, a first outer leg, a second outer leg, and a central leg. The first outer leg, the second outer leg, and the central leg extend from the base. The first outer leg has a first outer attraction surface configured to attract the plunger. The second outer leg has a second outer attraction surface configured to attract the plunger. The central leg has a central attraction surface configured to attract the plunger. The central attraction surface is larger in area than each of the first and second outer attraction surfaces.

A solenoid valve includes a solenoid including a guide, a mover that moves in an axial direction radially inside the guide, a yoke made of a magnetic material and disposed on one axial side of the mover, a magnet on one axial side of the yoke, an elastic body that applies an elastic force to the mover in the direction away from the magnet, a cover made of a magnetic material, a pin which moves as the mover moves, and a valve that is opened and closed as the mover and the pin move. The cover includes a cylinder surrounding the radial outside of the solenoid, a first wall on the other axial side of the solenoid, and a second wall that covers one axial side of the magnet.

A servo valve comprises a valve housing, a cavity formed in the valve housing and defining a longitudinal axis (X), and a member disposed in the cavity and axially-moveable therein, wherein the member comprises a portion with first and second cylindrical sections having a first diameter (R1, R2), a central section located between the first and second cylindrical sections and having a second diameter (R3), and first and second frusto-conical sections connecting the first and second sections to the central section and forming respective first and second frusto-conical surfaces. A plurality of ports, each form a fluid passage through the valve housing and have first and second nozzles with first and second nozzle openings.