Abstract: The present invention relates to a multi-disc clutch for the transfer of torque between a first clutch part and a second clutch part, having at least one first and at least one second disc that engage on another and that are movable parallel to a rotational axis of the multi-disc clutch, and having a reset device for the receiprocal ventilation of adjacent discs. The first clutch part is connected in a rotationally secure fashion to the first disc and the second clutch part is connected in a rotationally secure fashion to the second disc. The reset device has at least two reset elements that are disposed eccentrically relative to the rotational axis and distributed in the circumferential direction.

Abstract: An electric drive unit includes an electric motor, which has a stator and a rotor, a gearbox, an electric circuit and a housing. The housing forms a motor compartment in which the electric motor is arranged and a gearbox chamber in which at least a part of the gearbox is arranged. The electric drive unit also includes a lubricating circuit in which a lubricating fluid is conveyed in order to lubricate and cool the gearbox and the rotor of the electric motor, the lubricating fluid circulating between the motor compartment and the gearbox chamber. The drive unit further includes a cooling circuit in which a cooling fluid is conveyed in order to cool the electric circuit and also the stator of the electric motor. The cooling fluid of the cooling circuit is connected to the lubricating fluid of the lubricating circuit in such a manner as to be able to exchange heat.

Abstract: A distribution gearbox for distributing a drive torque of a drive unit of a motor vehicle to a first axle and a second axle of the motor vehicle, and including a housing, an input shaft, a clutch unit which is seated coaxially with respect to the input shaft, and a chain sprocket which can be driven by the clutch unit and by way of which a drive moment of the input shaft can be transmitted to an output shaft, wherein the chain sprocket is mounted on a neck-shaped reduced portion of the housing.

Abstract: An adjusting device for adjusting a camshaft relative to a drive sprocket, which drives the camshaft coaxially. The adjusting device includes an actuating gear which acts between the drive sprocket and the camshaft and is driven via an electric motor to adjust the camshaft. The actuating gear has internally- and externally-toothed gearwheels in engagement with each other, in which the internally toothed gearwheel is rotated about a central axis of the adjusting device. The externally toothed gearwheel is arranged eccentrically with respect to the central axis and is driven to perform a circular motion about the central axis. The externally toothed gearwheel is supported eccentrically on at least two eccentric shafts, each eccentric shaft being driven to perform a rotary motion about a respective eccentric axis. The eccentric axes are arranged eccentrically with respect to the central axis and can be rotated about the central axis.

Abstract: A torque transmission unit having a friction clutch and a hydraulic actuation system. The hydraulic actuation system includes a stepped piston unit having a stepped piston which has a first piston section movable in a first pressure space and a second piston section movable in a second pressure space. The first pressure space and a portion of the second pressure space can be brought into fluid communication by means of an overflow line based on a position of the first piston section. The hydraulic actuation system also includes an actuation piston unit having an actuation piston that cooperates with the friction clutch. A third pressure space is associated with the actuation piston and is in fluid communication with the second pressure space via a pressure line.

Abstract: A method and device for dual-channel transmission of safety-relevant sensor signals. In the method, two sensor signals to be monitored are generated parallel to one another by two sensors and the generated sensor signals are transmitted to a common evaluation unit via two separate, input-side transmission channels. Within the evaluation unit, the permissibility of the transmitted sensor signals is checked using prescribed calculation specifications that correspond to one another and an evaluation unit output signal representing permissibility or impermissibility is generated for each sensor signal. The individual processing steps of the two calculation specifications are decoupled by the evaluation unit for the two sensor signals and performed diversified within the evaluation unit. The generated output signals are output via two separate, output-side transmission channels.

Abstract: A joint site design for welding of a shaft has a tubular shape composed of a hard material with a hub having a flat shape composed of softer material. The shaft is joined by welding at a connection area located at an end face thereof to a connection area of the hub located at a radial shoulder thereof.

Abstract: An expander circuit for a thermal expander, having a first pump arranged between a condenser and an evaporator, is proposed, the inlet of the expander being connected to the evaporator and the outlet to the condenser, and a separate lubricating circuit connecting the expander circuit to at least one bearing.

Abstract: A transfer case arrangement may include a first output shaft, a second output shaft, a clutch, a shutdown device, a lubrication device, and a control. The clutch may distribute a torque between the output shafts. The shutdown device may shut down the second output shaft when the clutch is disengaged. The lubrication device may lubricate the clutch and/or another component of the transfer case arrangement. The lubrication device may include an oil conveying device for conveying lubrication oil. The control may activate the oil conveying device periodically when the second output shaft is shut down.

Abstract: A clutch assembly with a rotatable clutch hub which is connected rotationally fixedly to several inner plates which may be brought into friction connection with outer plates of an associated clutch basket and form a plate pack. The clutch hub has at least one bore which allows a throughflow of a fluid from the interior of the clutch to the plates, and an oil conduction device attached to the clutch hub at the at least one bore.

Abstract: An adjustment device for adjusting the relative angular position of a camshaft with respect to a crankshaft within a specified angle range, the adjustment device having a device for emergency operation of the adjustment device. The device for emergency operation includes a freewheel device which can be activated in an emergency mode of the adjustment device and, in an activated state, is able to allow an adjustment movement of the camshaft with respect to the crankshaft from the current position in a first direction towards an emergency running position and to block an adjustment movement in a second direction opposite thereto.

Abstract: The invention relates to a method for the assembly of a balance shaft unit for use in motor vehicles. The assembly includes a housing having a bearing section, a rotating component and at least one rolling element bearing for the axially fixed journaling of the rotating component in the bearing section of the housing. The rolling element bearing has a first ring section associated with the rotating component and a second ring section associated with the bearing section. First, the rolling element bearing is axially fixedly installed on the rotating component or in the bearing section. Next, the rotating component is cooled and/or the housing part is heated. Finally, the rotating component is introduced into the bearing section and is held until a temperature compensation has taken place between the rotating component and the housing such that a shrink-fit connection is established.

Abstract: A stator for an electric machine having electrical windings surrounded by a casting compound, and fluid channels for cooling the electrical windings formed in the casting compound in close spatial proximity to the electrical windings.

Abstract: A distribution gear mechanism with a torque transmission device having a clutch, a fluid sump configured to receive a lubricating fluid, wherein a lower cog is configured to engage in the fluid sump such that the lubricating fluid is conveyed from the fluid sump in the direction of an upper cog by way of a chain drive, a fluid reservoir configured to collect the lubricating fluid and which is fluidically connected to the fluid sump, an adjustment mechanism configured to open and close an outlet opening of the fluid reservoir to the fluid sump, and an actuating mechanism configured to simultaneously activate the adjustment mechanism and the clutch.

Abstract: A torque transmission arrangement including a primary shaft, a friction clutch, a housing in which the primary shaft is rotatably supported by a roller element bearing including an inner ring and an outer ring. An actuator is disposed in the housing between the friction clutch and the roller element bearing for actuating the friction clutch. The actuator comprises a fixed support element, an adjusting element axially offset from the support element and displaceable for engaging the friction clutch, and an actuating mechanism designed for displacing the adjusting element relative to the support element in an axial adjusting direction away from the roller element bearing. The roller element bearing is designed as a tapered roller bearing, and the support element is operationally connected to the tapered roller bearing.

Abstract: The invention relates to a transmission for a motor vehicle having a rotatable transmission element arranged in a first section of the transmission; a store of liquid arranged in a second section of the transmission separate from the first section; a collection device for liquid thrown off by the transmission element having a return passage through which a first portion of the thrown off liquid can be returned to the first transmission section and an outlet to supply a second portion of the thrown off liquid back to the liquid store; and a passage for the liquid which connects the liquid store to the first transmission section and which has a temperature-controlled restrictor element functioning to inhibit the inflow of liquid from the liquid store into the first transmission section when a fluid temperature in the first transmission section falls below a temperature threshold value.

Abstract: An actuator has a drive element and an output element each rotateable about a rotation axis, and a coupling device which couples the drive element to the output element to form a torsion backlash.

Abstract: A clutch unit (47) comprises a wet friction clutch for controllable transmission of a torque from an input element (41) to an output element (45), housing that contains the friction clutch and oil for cooling the friction clutch, and an actuator (51) for actuating the friction clutch. The actuator is attached to the housing in a thermally conductive way and has a temperature sensor (108) for sensing a temperature of the actuator. In order to computationally determine the oil temperature (TÖl) in the clutch unit (47), a thermal input power to the clutch unit is determined as a function of at least a speed of the input element and/or of the output element. The difference between the thermal input power and the thermal output power is determined, and the oil temperature is determined as a function of the difference that was determined.

Abstract: The present invention relates to a transmission having a housing, having a first drive output shaft, having a second drive output shaft and having a clutch system for distributing a torque between the drive output shafts. At least two transmission components are operatively connected between the drive output shafts and generate lubricating oil pressure. A separate tube extends within the housing from the at least two transmission components to the clutch system in order to supply lubricating oil to the clutch system.

Abstract: A method for selectively coupling a motor to a drive train of a motor vehicle using a clutch having a first clutch part driven by the motor, a second clutch part associated with the drive train and an actuator, the method includes the steps of: accelerating the first clutch part while simultaneously activating the actuator during a first actuation phase without engaging the first and second clutch parts; suspending activation of the actuator until a predefined rotational speed difference is reached between the first and second clutch parts; and engaging the first and second clutch parts during a second actuation phase upon reaching the predefined speed difference.