In some examples, a static part includes a static body and a first cylindrical extension extending from the static body, the first cylindrical extension including an open end with a cylindrical inner surface having a first diameter. A moveable part is moveable toward the static part by the magnetic flux of a solenoid. The moveable part may include a moveable body and a second cylindrical extension extending from the moveable body, the second cylindrical extension including a cylindrical outer surface having a second diameter, smaller than the first diameter, to enable the cylindrical outer surface to move within the open end. The second diameter is sized for the cylindrical outer surface to pass adjacent to the cylindrical inner surface to enable passage of a portion of the magnetic flux radially to reduce an energy of impact between the moveable part and the static part.

A solenoid including a first magnetic core and a second magnetic core defining an air gap between. A displaceable ferromagnetic member is within the air gap. The ferromagnetic member magnetically connects the first magnetic core and the second magnetic core to create a magnetic flux path between them. This flux results in an increased pull between the first magnetic core and the second magnetic core. A solenoid coil surrounds at least one of the first magnetic core and the second magnetic core.

Disclosed is a solenoid valve for a brake system. The solenoid valve comprises an armature disposed inside a sleeve to open and close an orifice formed in a seat by moving up and down along an axial direction together with a plunger; an elastic member for providing an elastic force to the armature; a magnet core accommodating the seat therein and providing a driving force to the armature in a direction opposite to the elastic force of the elastic member; a seal stopper coupled to a lower side of the magnet core so as to communicate with the orifice and having a slot on an outer circumferential surface thereof to allow the flow of a fluid through the slot; an outlet filter forming an outer flow passage with the seal stopper; an inlet filter coupled to a lower side of the seal stopper; a lip seal fitted between the seal stopper and the inlet filter and having an inclined protruding portion to allow only one-way flow of the fluid; an orifice flow passage opened and closed by the up and down movement of the armature; and a one-way flow passage formed to include a mesh portion of the outlet filter, a gap formed between a modulator block and the lip seal due to a deformation of the lip seal, and a mesh portion of the inlet filter, wherein the inlet filter includes a protruding portion inclined outwardly so as to have a chamber therein, and the lip seal is provided so that the inside thereof can be inserted into the chamber.

An actuator assembly is disclosed. The actuator assembly includes a driven component, a coil housing including a first coil and a second coil, and an armature housing including a first armature and a second armature. The first armature is axially fixed to the armature housing, and the second armature is slidably received within the armature housing and axially fixed to the driven component. In a first energized state, the first coil is energized, and the driven component is driven a first predetermined distance towards the coil housing. In a second energized state, the first coil and the second coil are energized, and the driven component is driven a second predetermined distance towards the coil housing.

One embodiment provides a multi-directional actuating module capable of moving in various directions and capable of delivering various tactile senses such as knocking or rubbing as well as vibration by controlling at least one of the intensity, direction or frequency of a magnetic field generation unit. Further, the multidirectional actuating module according to one embodiment may comprise: a moving body capable of moving in at least two or more axial directions by means of an external magnetic field; a support for supporting the moving body so as to be movable; and at least two or more magnetic field generation units which are in the form of a coil to generate the magnetic field.

A linear actuator for an active motor mount of a motor vehicle includes a stator which has an electrically energizable coil for generating an electromagnetic field, as well as a magnetic armature which is mounted axially movable with regard to a longitudinal axis of the coil and has at least one permanent magnet ring which opposes the stator and has several permanent magnet ring segments. Between a surface of the permanent magnet ring segments which faces the stator and a surface of the stator which faces the permanent magnet ring segments there exists an angular gap with a gap angle () of preferably 4.

An electromagnetic actuator device with a plurality of actuator units (10, 12) having in each case an armature tappet which is movable relative to a stationary coil along an axial tappet direction when said coil is energised, said actuator units being received in respectively assigned actuator housings (11, 13) such that in an installed and/or assembled state of the electromagnetic actuator device one respective end portion (16) of the armature tappets may come into engagement in a controlled manner with an actuator partner which is able to be assigned thereto, wherein the plurality of actuator units is mechanically connected to a bracket-like and/or bridge-like connecting unit (14) made of polymer material such that the actuator housings are movable relative to one another by the action and in accordance with a predetermined bending property and/or elasticity of the connecting unit, in particular in a plane perpendicular to a tappet direction of the armature tappets which are further preferably guided in an axially parallel manner to one another.

The present disclosure relates to a low friction bearing liner for a solenoid that may include a core layer, a first outer layer overlying a first surface of the core layer, a second outer layer overlying the first outer layer, a first inner layer overlying a second surface of the core layer that is opposite of the first surface of the core layer, and a second inner layer overlying the first inner layer. The first outer layer and the first inner layer may include a fluoropolymer material and may have a melt flow rate of at least about 2 g/10 min at 372 C. The second outer layer and the second inner layer may include a fluoropolymer material distinct from the fluoropolymer material of the first outer layer and may have a surface coefficient of friction of not greater than about 0.2.

An electromagnetic actuator device has at least one stationary spool unit (4), which can be energized, and at least one armature unit (7), movable along a displacement axis (V) and with respect to the spool unit (4) in reaction to the spool unit (4) being energized. The armature unit (7) can be displaced between a parked position and an actuating position in an output drive direction along the displacement axis (V) in order to interact with an actuating element, which can be a camshaft disposed on the output side of the armature unit (7), and can be rotated about the displacement axis (V). A spring member (14) supported against an abutment component (16) is preferably disposed in a torque-proof manner and allocated to the armature unit (7) in such a manner that the spring member (14) applies a spring force to the armature unit (7) during a displacing movement in the output drive direction while simultaneously at least partially relaxing and applying a spring force to the armature unit (7) when in the actuating position. It is intended that the spring member is supported against the abutment component (16) by a rotation decoupling member (15) for decoupling a rotational movement of the armature unit (7) from the spring member (14) about the displacement axis (V) at the armature unit (7) and/or for decoupling a rotational movement of the spring member (14) about the displacement axis (V) from the abutment component (16).

An apparatus for electromagnetic actuation includes a cylindrical housing. The apparatus further includes at least two stationary cores fixed to the cylindrical housing. Each stationary core includes at least one first annular portion having a first annular thickness between a first inner diameter and a first outer diameter. The apparatus further includes a ring coil fixed to and in operable communication with each of the at least two stationary cores. The apparatus further includes a ferromagnetic armature concentrically aligned with the at least two stationary cores and configured to move relative to the at least two stationary cores. The ferromagnetic armature has at least one second annular portion having a second annular thickness between a second inner diameter and a second outer diameter. The second annular thickness is about the same as the first annular thickness.