A solenoid valve includes a valve portion and a solenoid portion. The valve portion has a sleeve and a valve body. The solenoid portion includes a tubular coil portion, a magnetic yoke having a side surface portion and a bottom portion, a columnar plunger, a shaft, a stator core having a core shaft hole for sliding the plunger in the axial direction, and a base portion having a base shaft hole. In a radial thickness of the sleeve, a thickness of a part corresponding to an end outer peripheral surface is smaller than a thickness of a sliding portion of an inner peripheral surface of the sleeve, which is a portion on which the valve body slides.

An actuator for a hydraulic stroke or pressure control valve for a motor vehicle, the actuator including a magnetisable actuator housing that envelops a magnet coil; a pole group arranged in a receiving opening of the actuator housing, wherein the pole group includes a pole core and a pole tube, wherein an axially movable armature is arranged in an inner cavity of the pole group, wherein the armature is configured to axially move a piston of the hydraulic valve by a pin that is supported axially movable in the pole group, wherein the actuator is configured to perform an anti-stick function and a contact damping function, wherein the pin directly contacts a first armature face of the armature that is oriented towards the pin, and wherein the pin is configured axially movable relative to the armature.

A solenoid valve includes a valve portion and a solenoid portion. The valve portion has a sleeve and a valve body. The solenoid portion includes a tubular coil portion, a magnetic yoke having a side surface portion and a bottom portion, a columnar plunger, a shaft, a stator core having a core shaft hole for sliding the plunger in the axial direction, and a base portion having a base shaft hole. In a radial thickness of the sleeve, a thickness of a part corresponding to an end outer peripheral surface is smaller than a thickness of a sliding portion of an inner peripheral surface of the sleeve, which is a portion on which the valve body slides.

Electropneumatic solenoid valve includes an electromagnetic actuator with an energizable coil and a solenoid armature movable relative to the coil, an air chamber with three air channels, and a valve member. The three air channels include first and second air channels and a control air channel. The valve member, in a first closed position, closes the first air channel and releases the second air channel and which, in a second closed position, closes the second air channel and releases the first air channel. The valve further includes a driver movable in a first and second actuating directions and that connects the valve member to the solenoid armature, a driver-pretensioning spring arranged between the driver and the solenoid armature, to provide a pretensioning force to the driver, and a restoring spring between the driver and the electromagnetic actuator to provide a restoring force to the driver against the driving direction.

An electromagnetic actuator includes an armature (18) movable axially relative to a stationary core (14) as a reaction to energizing of a stationary coil (12) in an actuator housing (10). The armature (18) is gripped by an axially extended slide (20) guided in a core passage (50) of the core such that a movement of the armature in the direction of the core entrains the slide. An end section (26) of the slide, axially opposite the armature, cooperates with an adjusting partner, the slide having a long rod section (34) and a disk-type end section (30) with a widened diameter on the rod section, on the end in the direction of the armature (18), the axial extension (W) of the end section. determining a minimum distance between the armature and the core in an abutment state of the armature on an end surface and/or front surface of the core, facing the armature.

An actuator for a hydraulic stroke or pressure control valve for a motor vehicle, the actuator including a magnetisable actuator housing that envelops a magnet coil; a pole group arranged in a receiving opening of the actuator housing, wherein the pole group includes a pole core and a pole tube, wherein an axially movable armature is arranged in an inner cavity of the pole group, wherein the armature is configured to axially move a piston of the hydraulic valve by a pin that is supported axially movable in the pole group, wherein the actuator is configured to perform an anti-stick function and a contact damping function, wherein the pin directly contacts a first armature face of the armature that is oriented towards the pin, and wherein the pin is configured axially movable relative to the armature.

A solenoid has a coil, a yoke including a side surface portion along an axial direction and a bottom portion, a columnar plunger configured to slide in an axial direction, a stator core, and a second magnetic flux transfer portion. The stator core includes a magnetic attraction core configured to attract magnetically the plunger by a magnetic force generated by a coil, and a sliding core having a cylindrical core portion, a first magnetic flux transfer portion, and a magnetic flux passage suppressing portion configured to suppress passage of magnetic flux between the sliding core and the magnetic attraction core. The second magnetic flux transfer portion transfers the magnetic flux between the magnetic attraction core and the side surface portion. A first breathing groove extending in the axial direction in communication with the outside is formed on an inner peripheral surface of the yoke.

Electromagnetic solenoid has movable core having end surface that is formed between inner circumferential surface and outer circumferential surface of movable core; and fixed core having end surface that is formed between inner circumferential surface and outer circumferential surface of fixed core and faces the end surface of movable core. Ring-shaped protruding portion is formed at least either one of the end surface of the movable core or the end surface of the fixed core. Protruding portion is provided at a position that is shifted to a radially inner circumferential side of the end surface. A length between apex and inner circumferential edge of protruding portion is shorter than a length between the apex and an outer circumferential edge of protruding portion.

An electromagnetic valve, having a valve closing element which is arranged in a valve housing and which is capable of opening or closing a valve passage in a valve seat, having a magnet armature provided for actuating the valve closing element, and having a substantially cylindrical restoring spring which is braced between the magnet armature and a magnet core. In a parallel arrangement with respect to the restoring spring, a spring ring is arranged between the magnet armature and the magnet core, which spring ring has a smaller number of spring windings in relation to the number of spring windings of the restoring spring.

An electromagnetic valve, having a valve closing element which is arranged in a valve housing and which is capable of opening or closing a valve passage in a valve seat, having a magnet armature provided for actuating the valve closing element, and having a substantially cylindrical restoring spring which is braced between the magnet armature and a magnet core. In a parallel arrangement with respect to the restoring spring, a spring ring is arranged between the magnet armature and the magnet core, which spring ring has a smaller number of spring windings in relation to the number of spring windings of the restoring spring.