An electromagnetic actuating device includes a sleeve, an armature situated radially inside the sleeve, and an electromagnetic coil situated radially outside the sleeve, the armature having a first armature end face on one end and a second armature end face on the opposite end. The sleeve has a channel on or in the sleeve wall, which extends in the longitudinal direction of the sleeve and forms a fluid connection between the armature end faces.

An electromagnetic actuating device (8) is for a variable valve drive, in particular electromagnetic switching valve lever systems. The electromagnetic actuating device comprises a base plate (3), a housing which is secured to the base plate (3) and a coil. The housing is designed as a bracket housing (12) and can form part of the magnetic circuit.

A reset lockout mechanism for a circuit breaker includes a linkage, a rocker, an armature, a solenoid, and a plunger. The linkage is positioned to move between an open position and a closed position. The rocker is selectively engageable with the linkage. The armature is selectively engageable with the rocker. The plunger is supported by the solenoid and operatively coupled to the armature. The plunger is movable between a first position and a second position.

A solenoid valve includes: a movable iron core; a molded solenoid body disposed outside the movable iron core in a radial direction; a solenoid case that accommodates the movable iron core and the molded solenoid body; and a stationary iron core disposed radially inside the molded solenoid body, and generates a magnetic force between the movable iron core and the stationary iron core when a coil is energized, the stationary iron core including a thin portion circumferentially formed and thinned in a circumferential direction, and a flange portion formed at a first axial end of the stationary iron core to extend outward in the radial direction.

A solenoid valve having current dependent bi-directional force includes a stator with a channel. An armature is in the stator channel. The armature is movable in a first and second direction. A projection extends from the stator into the channel. When a low current is applied, a flux is generated such that it jumps from the projection to the armature and back to the stator. Thus, the armature is pulled in the first direction. As the current is increased, the projection becomes magnetically saturated and the additional flux as a result of increased current jumps from the stator, at a thinned portion, to the armature then back to the stator. This moves the armature in the second direction, opposite to the first direction.

An actuator arrangement for an electromagnetically actuatable valve comprises a housing having a first wall, and a second wall situated opposite the first wall, a solenoid armature, with first and second axial armature end surfaces facing toward the first and second housing walls respectively, movable along an axis between a first position, where the first end surface makes contact with the first wall, and a second position, where the first end surface is away from the first wall. A damping element of an elastomer material extends from the second end surface toward the second wall and contacts the second wall in the first and second positions of the solenoid armature, A stop element of an elastomer material extends from the second end surface toward the second wall and, in the first position, is away from the second wall and, in the second position, contacts the second wall.

Systems and methods for a solenoid supervisory detection system which can detect the presence or absence of a solenoid plunger within a solenoid coil. These systems can be used to verify correct reassembly of a solenoid valve after it has been disassembled for testing.

The present invention aims to provide a valve driving device that suppresses an increase in size and improves thrust. The present invention includes a bobbin including a body portion, a solenoid coil wound around the body portion of the bobbin, an armature arranged on a radially inner side of the bobbin and fixed to a rod, an anchor that covers one side in an axial direction of the armature at a position on the radially inner side of the bobbin, a yoke partially arranged between the bobbin and the anchor, and a cylindrical member arranged between the bobbin and the armature. The bobbin includes a recessed portion on the radially inner side, and a part of the cylindrical member is inserted into the recessed portion. A part of the cylindrical member and the recessed portion are arranged so as to be laminated in the radial direction.

Embodiments of the present disclosure include a solenoid assembly that includes a ferromagnetic core tube having a longitudinal axis, a radial exterior surface and a radial interior surface, the ferromagnetic core tube comprising a channel disposed on the radial exterior surface of the ferromagnetic core tube, the channel circumscribing the ferromagnetic core tube along a given portion of the longitudinal axis, the channel comprising a plurality of radial exterior surfaces. The solenoid assembly also includes an excitation coil disposed radially outward of the ferromagnetic core tube.

A stator provided at a position facing an opening of a housing member. The stator includes a conical protrusion portion and a side surface made from a magnetic body. The side surface extends from an outer periphery of the reduced diameter portion in a direction away from the opening of the housing member. Also included is a yoke with a fixation hole having an inner peripheral surface to which a part of the side surface portion of the stator is fixed. A non-contact portion, where the yoke and the side surface portion are out of contact with each other, is formed on the housing member side of the fixation hole. Also included is a non-magnetic connection member joined by being heated between the housing member and the yoke, and a movable element provided axially movably in the housing member and made from a magnetic body.