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 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 hydraulic pump includes a pump module and a main housing, wherein the pump module has a pump housing and a cover. A pump element is arranged in the pump housing and is connected to a rotor arranged outside the pump housing, and the cover is latched to the pump housing by means of a first detent connection. The main housing has a stator, within which the rotor is arranged, and the main housing is latched to the cover by means of a second detent connection.

Abstract: A sensor for a fluid duct in a fluid housing has a sensor housing, which has an insert part which complements a receiving part of the fluid housing, and a sealing element, which is arranged on a sealing section of the insert part and is configured to seal off an intermediate space between the sealing section and the receiving part when the insert part is inserted in an insertion direction into the receiving part in a final assembly position. The insert part has a securing section with a latching groove which is configured for a spring-elastic securing element to be able to engage into the latching groove in the final assembly position in order to fasten the sensor to the fluid housing. A sensor assembly having a sensor of this kind is also provided.

Abstract: A fluid line component with a fluid duct, a sealing surface which surrounds the outlet of the fluid duct on an outer side of the fluid line component, and an axial seal which bears against the sealing surface and can be brought to bear against an opposite surface of a mating piece in order to connect the fluid duct leaktightly to a duct in the mating piece. The axial seal has a support and a sealing element which is assembled on the support, wherein the support can be displaced relative to the sealing surface. The invention also relates to an assembly with such a fluid line component, wherein the fluid line component is a hydraulic pump and the mating piece is a receptacle in a housing of a fluid storage tank.

Abstract: A rotary vane pump includes a pump housing, a stator, a rotor, a plurality of vanes which are accommodated in the rotor so as to be displaceable in the radial direction, so that they delimit a plurality of pump chambers between themselves, the stator and the rotor. A radially inner cam surface is provided, against which the vanes rest, wherein secondary chambers are delimited in the radial direction between the cam surface and the rotor and in the circumferential direction between the vanes, with a suction inlet and a pressure outlet being assigned to the secondary chambers.

Abstract: A hydraulic unit includes a reversing pump which has two pump connections which act as a suction connection and pressure connection depending on rotation direction. The hydraulic unit has at least one suction intake for intake of hydraulic fluid. Starting from the suction intake, a suction line portion extends to each of the pump connections, and a non-return valve blocking in the direction towards the suction intake is arranged in each suction line portion. Starting from a first pump connection, a first pressure line extends to a lubricant connection of the hydraulic unit, wherein a non-return valve blocking in the direction towards the pump connection is arranged in the first pressure line. Starting from a second pump connection, a second pressure line leads to an actuator connection (of the hydraulic unit, wherein the second pressure line is free of valves. Furthermore, an assembly comprising a hydraulic unit is indicated.

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 device is for producing a component from a plastics material by injection moulding. The device includes two mould halves that can be pressed together releasably and, in the pressed-together state, form at least one gate region and at least one common cavity for moulding the plastics material. The gate region is fluidically connected to the cavity for the purpose of introducing the plastics material into the cavity. At least one insert part is provided which is arranged at least partially in a partial region of the gate region and is formed to prevent or at least to impede flowing of the plastics material through this partial region.

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: An oil supply system for a machine, such as for a power unit of a motor vehicle, with a module body made of plastic including a collection tank which is divided into a prechamber and a main chamber. A predelivery pump can extract oil from the prechamber and pump it into the main chamber, a main delivery pump can extract oil from the main chamber and pump it to the machine, and a return line can return oil from the machine to the prechamber and/or the main chamber. A power unit for a motor vehicle can include such an oil supply system, wherein a predelivery suction opening is arranged on the floor of the prechamber and a main delivery suction opening is arranged on the floor of the main chamber, and the power unit is configured to be mounted in the motor vehicle with an orientation such that a line running through the two suction openings is arranged approximately parallel to the transverse axis of the vehicle.

Abstract: A liquid pump, in particular for providing a supply to a transmission or to a clutch in the drive train of a motor vehicle, includes a drive motor, a pump module which can be operated in two opposing directions of rotation, and at least one inlet and multiple outlets, each of which has at least one corresponding check valve. The pump has a valve plate corresponding to the pump module in which, for each check valve, a valve seat and a receptacle for a valve element interacting with the valve seat are provided.

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 assembly with a lubricant output, a control output and a pump which can supply a hydraulic fluid flow to the lubricant output and the control output. A switching valve with structurally predefined hysteresis is arranged between a pump output and the control output of the hydraulic assembly. Depending on the pressure in the branch between the pump output and the control output, the valve can be switched between an open position in which the control output is connected to the pump output, and a blocking position in which the control output is blocked off. The switching valve switches from the open position to the blocking position when the pressure provided by the pump exceeds an upper switching threshold, and returns from the blocking position to the open position when the pressure provided by the pump falls below a lower switching threshold. A clutch can be switched by means of such a hydraulic assembly, and a method for actuating the clutch.

Abstract: A method for manufacturing a component with moulded-on seal, in particular a pump component. The component is laid in an injection-moulding tool, then a sealing material is injected from an injection gate into the injection-moulding tool and fills a cavity on one side of the component. Sufficient sealing material is injected for a part of the sealing material to pass from the cavity, via an overflow channel connected to the cavity, into an overflow chamber which is provided inside the contour of the component. A component can includes the moulded-on seal.

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.