Abstract: A piston, in particular for a gear-change selector, including a piston body with a piston skirt and with a piston end face which can be pressurised with a working fluid. The piston includes a first sealing portion and a second sealing portion. The piston body and the first sealing portion have mutually complementary geometries so that they form a first vent channel. The first vent channel is arranged in a hydraulic series circuit with the second sealing portion. The second sealing portion prevents venting up to a first pressure and allows this above the first pressure. The invention furthermore concerns a gear-change selector and a gearshift for a vehicle.

Abstract: A gear pump having a drive shaft and at least two gear wheel pairs which each include a drive gear wheel and a driven gear wheel. The two gear wheels of a gear wheel pair are in meshing engagement with one another, and the drive gear wheels are arranged on the drive shaft and in torque-transmissive engagement with the drive shaft. The gear pump has a freely rotatably mounted shaft on which the driven gear wheels of the gear wheel pair are arranged in torque-transmissive engagement, wherein the driven gear wheels are mounted on the freely rotatably mounted shaft by means of a clearance fit.

Abstract: A fluid pump with a housing, a fluid duct which is provided in the housing, a temperature sensor which is assigned to the fluid duct in order to detect the temperature of a medium situated therein, and a metal thermally conductive element.

Abstract: A transmission for a drivetrain of a motor vehicle, including a transmission casing which is or can be at least partially filled with oil and wherein a parking lock is arranged, wherein the parking lock includes a parking lock gear, which is connected rotationally conjointly to a transmission shaft and which has a locking toothing, and a locking pawl, which is mounted pivotably on the transmission casing and which has a locking tooth which, when the locking pawl is pivoted into a locking position, can be placed in positive locking engagement with the locking toothing of the parking lock gear, wherein the locking pawl is actuatable by an electromechanical parking-lock actuator which is arranged within the transmission casing. The invention furthermore relates to a motor vehicle which has a transmission of the type.

Abstract: An electric clutch actuator having an electric motor, a gear mechanism and a spindle which is coupled to the electric motor via the gear mechanism, wherein the spindle, the gear mechanism and the electric motor are received in a housing configured in one piece.

Abstract: A clutch actuator for actuating a clutch in the drive train of a motor vehicle, having a housing, a drive, a pushrod, which can be adjusted in an axial direction by the drive, a tappet, which is coupled to the pushrod, and a guide component which is accommodated movably in the housing and receives that end of the tappet which faces the pushrod. At least one stroke sensor, which is associated with the guide component, and a rotation angle sensor, which is associated with the drive, are provided. Embodiments relate to an assembly having a clutch actuator of this kind and a controller, the controller is set up and designed to determine the start of the release stroke of a clutch actuated by the clutch actuator from a comparison of the signal of the stroke sensor and the signal of the rotation angle sensor.

Abstract: A drive assembly having an electric motor, having a stator housing, a stator accommodated therein and having at least one winding, a stator insulation which has a lower part and an upper part, wherein the lower part rests against at least one bearing surface in the stator housing, terminal contacts for the winding, wherein the terminal contacts are held in a contact carrier, which is provided on the lower part of the stator insulation, and a printed circuit board, which rests on at least one supporting surface in the stator housing, wherein the terminal contacts are in contact with associated conductor tracks of the printed circuit board.

Abstract: A liquid pump having a housing, an electric motor formed by a stator assembly arranged in the housing and a rotor, a liquid duct, a printed circuit board and a temperature sensor assembly which is received in the housing and has a temperature sensor associated with the liquid duct, the stator assembly and/or the temperature sensor assembly having at least one press-in contact which engages into a press-in opening in the printed circuit board, an alignment mechanism is provided, by way of which the press-in contact may be directly aligned relative to the printed circuit board.

Abstract: A parking lock arrangement for an electromotively driven motor vehicle, including a parking lock wheel which is rotationally conjoint with respect to a shaft in the drive train and which has multiple cutouts, a lock element which is movable between a locking position and a release position along a movement path and which, in the locking position, engages in a form-fitting manner into a cutout of the parking lock wheel and, in the release position, is out of engagement with the cutouts of the parking lock wheel, a parking lock actuator which is operatively connected to the lock element and wherein the lock element is adjustable between the locking position and the release position along its movement path. The movement path of the lock element can be rectilinear.

Abstract: An electric clutch actuator having an electric motor, a spindle and a gear mechanism which is arranged between the electric motor and the spindle, wherein the gear mechanism is mounted on a base plate which is received in the housing.

Abstract: A liquid pump having an electric motor, a pump assembly, which is driven by the electric motor, and a housing wherein the electric motor and the pump assembly are arranged, wherein the housing is in the form of a one-piece, injection-moulded pot having a base and side walls, wherein the pump assembly bears against the base, and the electric motor is arranged on the open side of the housing remote from the base.

Abstract: A pump unit for clutch actuation, having a high-pressure port for clutch actuation, a low-pressure port for a lubricant flow, a single drive motor and a dual pump, which is driven by the drive motor and has a high-pressure outlet, which is connected to the high-pressure port with a high-pressure line, and a low-pressure outlet, which is connected to the low-pressure port with a low-pressure line, wherein a prefilling line which leads from the low-pressure line to the high-pressure line is provided.

Abstract: A pump unit provides a hydraulic pressure for actuating an actuator in the drive train of a motor vehicle, in particular a clutch actuator or gearbox actuator. The pump unit includes a pump, a storage container for hydraulic fluid, and at least one solenoid valve. The solenoid valve is arranged within the storage container such that it is surrounded by hydraulic fluid.

Abstract: A drive assembly having an electric motor, having a stator housing, a stator accommodated therein and having at least one winding, a stator insulation which has a lower part and an upper part, wherein the lower part rests against at least one bearing surface in the stator housing, terminal contacts for the winding, wherein the terminal contacts are held in a contact carrier, which is provided on the lower part of the stator insulation, and a printed circuit board, which rests on at least one supporting surface in the stator housing, wherein the terminal contacts are in contact with associated conductor tracks of the printed circuit board.

Abstract: A hydraulic gearbox actuator with a hydraulic pump which has a pump body wherein a rotor is arranged, wherein a drive motor is provided with which the rotor can be driven in opposite directions, wherein two working chambers which are separated from each other are formed in the pump body, the working chambers each having two openings, of which at least three openings are connected to a respective pressure supply circuit, the one side of which is connected to a reservoir and the other side of which is connected to one of three pressure outlets of the gearbox actuator.

Abstract: A parking lock module has a housing, in which, for the actuation of a parking lock, a positioning member is movable between a locking position and an unlocking position. The positioning member is selectively fixable in a position relative to the housing with an arresting device, which has a detent element interacting with the positioning member. The detent element is movable with an actuator between arresting and release positions. A sensor arrangement with a position detector, which is positionally fixed relative to the housing, and a position encoder, which, for the detection of the respective position, is operatively connected to the positioning member or to the detent element. The electromagnetic actuator is activatable with a circuit board attached to the housing and bears the position detector of the sensor arrangement.

Abstract: A liquid pump, in particular for providing a supply to a transmission of an electric or hybrid drive module of a motor vehicle, having a pump housing wherein a pump chamber and a pump rotor are arranged, wherein the pump chamber is connected to an outlet channel to which a temperature sensor is assigned, wherein the temperature sensor has a lead frame and an SMD sensor element.

Abstract: A pump unit which has at least one high-pressure port and at least one low-pressure port, having a motor and a hydraulic pump which has at least one high-pressure outlet and at least one low-pressure outlet, wherein the high-pressure outlet is connected to the high-pressure port via at least one pressure-regulating valve.

Abstract: A rotary vane pump having a stator and having a rotor in which at least one rotary vane is received. A radially outer side of the rotary vane serves for delimiting a low-pressure chamber. A radially inner side of the rotary vane serves for delimiting a high-pressure chamber.

Abstract: An electric clutch actuator having a housing, an electric motor, a gear mechanism and a spindle which is coupled to the electric motor via the gear mechanism, wherein the spindle has an output end which acts on a relief piston which is displaceably mounted on a guide piston which is mounted so as to be displaceable in the housing, wherein the relief piston is urged elastically away from the guide piston towards the spindle.