Abstract: A spring for a check valve which can be used in particular in controllable vibration dampers, said spring comprising a flat main body with a first surface, a second surface and a centre point, and two or more spring arms, which cooperate resiliently with the main body and in the unloaded state protrude from the first surface or the second surface, the spring arms forming a free end and having a longitudinal axis that runs through the free end and tangentially to a circle about the centre point of the main body. The invention further relates to a check valve having a spring of this kind. In addition, the invention relates to a controllable vibration damper which comprises such a check valve, and to a motor vehicle having a controllable vibration damper of this kind.

Abstract: The present invention relates to a pressure control valve (30) for open-loop or closed-loop control of a pressure of a compressed fluid in a pilot pressure chamber (12), comprising a valve housing (50) with at least one inlet (41) which can be fluidically connected to the pilot pressure chamber (12), and at least one outlet (43); a wall section (51) which is permanently arranged in the pressure control valve (30) and which wall section has a passage channel (60) through which the compressed fluid can flow, and forms a first valve seat (58); a tappet (52) which is mounted in the valve housing (50) so as to be movable along a longitudinal axis (L) by means of an actuation device (49) that can be energized; a first sealing element (54) which forms a second valve seat (66), is mounted in the valve housing (50) so as to be movable along the longitudinal axis (L) and is biased by means of a first spring (56) against the actuation direction (B) of the actuation device (53) into a closure position in which the first

Abstract: A pressure control valve for controlling or regulating a pressure of a compressed fluid in a pilot pressure chamber includes a valve housing with at least one inlet which is fluidically connectable to the pilot pressure chamber, at least one outlet, a tappet mounted in the valve housing to be moved along a longitudinal axis by means of an actuation device that can be energized, and a first seal element which is mounted in the valve housing to move along the longitudinal axis and which is preloaded into a closed position by means of a first spring. The first seal element rests against a first valve seat in the closed position. The first seal element has a passage through which the compressed fluid can flow. A second seal element is secured to the tappet and can be moved by the energization of the actuation device.

Abstract: The present invention relates to an apparatus (1) for pressure control in a fuel feed of an internal combustion engine with a common rail injection, comprising a housing (10) with an opening (15), and an electromagnetic high pressure valve (30), wherein the electromagnetic high pressure valve (30) is at least partially inserted into the opening (15) of the housing (10) at the end, wherein the electromagnetic high pressure valve (30) is connected in a pressure-tight manner in the opening (15) to the housing (10) by a connection (20) and the connection (20) has a first portion (21) and at least one second portion (22), and wherein the first portion (21) and the at least one second portion (22) have different mechanical and/or geometric properties.

Abstract: A coupling arrangement is provided and includes a first component, a second component, a press-on element, and an actuating unit, such that the second component can be displaced from a first position to a second position. The actuating unit includes an actuator and a lever rotatably mounted in the second component about an axis of rotation perpendicular to a longitudinal axis and having a contact surface to contact a fixed mating surface. The contact surface and/or the mating surface has a convex curvature, and the actuator and the lever cooperate such that the movement of the actuator along the longitudinal axis is converted into movement of the lever on the mating surface, and such that the second component is displaced along the longitudinal axis in the second position.

Abstract: A method for producing one or more concave cut-outs on a main body, which is in particular substantially cylindrical, more particularly one or more grooves on a magnetic armature, a push rod, or a magnetic keeper plate, includes the following steps: providing a main body, which is in particular substantially cylindrical and has a first axis of rotation, rotating the cylindrical main body around the first axis of rotation in a first rotational direction by means of a lathe, and rotating a striking tool, which is provided with a number of fly cutters, around a second axis of rotation, which extends in parallel and offset in relation to the first axis of rotation in a second rotational direction, which is opposite to the first rotational direction, in such a way that the fly cutter engages in a material-removing manner in the main body to produce the cut-out.

Abstract: A controllable shock absorber, in particular for motor vehicles, comprising a valve device comprising a bridge circuit with four non-return valves which are connected crosswise in the forward direction, the connection of a first bridge branch with two non-return valves that are arranged opposite each other form a pressure chamber and the connection of the second bridge branch with two non-return valves arranged opposite each other form a low pressure chamber, a hydraulic main slide arranged between the low pressure chamber and the pressure chamber, a pilot chamber which is connected to the pressurised fluid line which is part of the upper working space (traction area) by means of a fifth non-return valve, and a pilot valve which connects the low pressure chamber to the pilot chamber, the pilot chamber being connected to the high-pressure chamber by means of a diaphragm.

Abstract: The application relates to an electromagnetic control device, in particular for adjusting camshafts or a camshaft section of an internal combustion engine, comprising: an energizable coil unit, via which, in an energized state, an armature mounted for movement along a longitudinal axis of the control device can be moved relative to a pole core between a retracted position and an extended position; at least one tappet, which is mounted for movement along the longitudinal axis and, in an extended position, interacts with the camshaft via a free end in order to adjust the camshaft and is connected at an inner end to the armature, wherein the tappet has a first diameter in the region of the free end and has a second diameter in the region of the inner end, and the first diameter is greater than the second diameter.

Abstract: An electromagnetic switch valve for opening or closing an oil or coolant circuit in a motor vehicle, having an electromagnet, which has a coil and a movable armature, wherein the armature is coupled to a valve element, via which a valve seat in the coolant circuit can be sealed, wherein the switch valve is designed to be pressure balanced, and the valve element, pointing in the direction of the valve seat, is designed to be at least approximately hollow-walled.

Abstract: A spring for a check valve which can be used in particular in controllable vibration dampers, said spring comprising a flat main body with a first surface, a second surface and a centre point, and two or more spring arms, which cooperate resiliently with the main body and in the unloaded state protrude from the first surface or the second surface, the spring arms forming a free end and having a longitudinal axis that runs through the free end and tangentially to a circle about the centre point of the main body. The invention further relates to a check valve having a spring of this kind. In addition, the invention relates to a controllable vibration damper which comprises such a check valve, and to a motor vehicle having a controllable vibration damper of this kind.

Abstract: An electromagnetic control device, in particular for adjusting camshafts or a camshaft section of an internal combustion engine, comprising an energisable coil unit, by means of which an armature mounted for movement along a longitudinal axis can be moved relative to a pole core between a retracted position and an extended position; a tappet, which is mounted for movement along the longitudinal axis with a free end portion with which, in the extended position, the tappet interacts with a camshaft in order to adjust the camshaft, and with an inner end portion (30), with which the tappet is attached to the armature, wherein the tappet is attached in a form-fitting manner to the armature by means of a deformable connection element and a method for the form-fitting attachment of a tappet to an armature of an electromagnetic control device of this kind.

Abstract: An adjusting device having at least one tappet assembly. The at least one tappet assembly comprises a tappet, at least one guide cylinder, and a pole core. The tappet is arranged in the guide cylinder in a movable manner along a longitudinal axis, and a non-magnetic connection socket is arranged between the guide cylinder and the pole core. The guide cylinder and the pole core are arranged at a distance to each other in the longitudinal axis by the connection socket.

Abstract: The invention relates to a damping valve, in particular for shock absorbers of vehicles, with an adjustable damping force, in which differently sized outlet openings arranged between an inflow and an outflow can more or less be closed in order to obtain a desired damping effect. To this end, the differently sized outlet openings are more or less sealed off radially by means of a valve slide. In another embodiment, sudden pressure increases in the damping valve are automatically reduced by means of a differential area function. Due to said invention, said damping valve can be produced easily, has low leakage loss, a low tolerance chain and requires little effort for setting the desired damping.

Abstract: The application relates to an electromagnetic control device, in particular for adjusting camshafts or a camshaft section of an internal combustion engine, comprising: an energizable coil unit, via which, in an energized state, an armature mounted for movement along a longitudinal axis of the control device can be moved relative to a pole core between a retracted position and an extended position; at least one tappet, which is mounted for movement along the longitudinal axis and, in an extended position, interacts with the camshaft via a free end in order to adjust the camshaft and is connected at an inner end to the armature, wherein the tappet has a first diameter in the region of the free end and has a second diameter in the region of the inner end, and the first diameter is greater than the second diameter.

Abstract: The application relates to an electromagnetic control device, in particular for adjusting camshafts or a camshaft section of an internal combustion engine, comprising: an energizable coil unit via which, in the energized state, an armature mounted for movement along a longitudinal axis of the control device can be moved relative to a pole core between a retracted position and an extended position; a tappet which interacts with the armature and is mounted for movement along the longitudinal axis, having a free end, via which the tappet interacts with the camshaft in the extended position in order to adjust the camshaft; and an adapter, via which the control device can be fastened to a component, in particular to cylinder head cover, wherein the armature and the tappet are connected to each other for conjoint rotation, and the control device has a first bearing section inside the adapter for rotatable mounting of the tappet and a second bearing section outside of the adapter for rotatable mounting of the tappet

Abstract: An adjusting device having at least one tappet assembly. The at least one tappet assembly comprises a tappet, at least one guide cylinder, and a pole core. The tappet is arranged in the guide cylinder in a movable manner along a longitudinal axis, and a non-magnetic connection socket is arranged between the guide cylinder and the pole core. The guide cylinder and the pole core are arranged at a distance to each other in the longitudinal axis by means of the connection socket.

Abstract: The application provides a damping adjusting system having a guide tube which is arranged in an outer housing and which comprises a lateral outer wall. The interior of the guide tube being delimited at the end face by a base part. The guide tube can also have a magnet coil; an electromagnetically movable armature which is guided in the guide tube along a movement axis; an exterior which surrounds the outer housing; and a ventilation bore which connects the interior to the exterior and which is guided through the base part and the outer housing. The ventilation bore has two interconnected sections. A first section is guided through the base part and the first section has a first opening arranged on the base part on the interior side and a second opening arranged on the lateral outer wall, and a second section is guided through the outer housing.

Abstract: The application relates to a valve for a line system, comprising a valve body which forms a valve seat, a line system with a supply line for supplying a fluid to the valve seat and with a discharge line for discharging the fluid from the valve seat, which fluid is under a supply pressure in the supply line and under a working pressure in the discharge line, a closing element which interacts with the valve seat for opening and closing the line system, which closing element releases a throttle cross section between the valve seat and the closing element, a restoring element which applies a restoring force on the closing element, which restoring force presses the closing element against the valve seat in order to close the line system, and a pressure chamber in which the fluid is under a closing pressure to close the line system.

Abstract: An actuating apparatus having a first actuating unit and a second actuating unit arranged adjacent to the first actuating unit. The actuating units each have elongated tubular coil bodies, actuator coils which are wound around the coil bodies, electromagnetically actuatable actuators which are guided in the coil bodies and are movable relative to the actuator coils, and the coil bodies are D-shaped and face one another with the flattened sides thereof.

Abstract: An electromagnetic actuator of a valve device, in particular in a common rail system of a motor vehicle, comprising an armature for actuating a valve element located in a duct, said armature being arranged in a housing and being movable axially along a longitudinal axis of the actuator when an excitation coil is energized, further comprising a pole core, characterized in that the electromagnetic actuator is designed as an electromagnetic adhesive system that comprises a plate-type armature which entirely covers planar end faces of the pole core that extend orthogonally to the longitudinal axis.