Abstract: A hydrodynamic torque converter includes a converter housing and a turbine wheel which is arranged in the converter housing and is rotatable with respect to the converter housing about a rotational axis of the converter The torque converter further includes a lockup clutch for producing a torque transmission connection between the converter housing and the turbine wheel.

Abstract: A drive arrangement for a motor vehicle includes a drive shaft, a coupling device, and a coupling arrangement. The drive shaft is connectable with the coupling device for transmission of force solely via the coupling arrangement. The coupling arrangement has a first toothing arrangement connectable with the drive shaft so that the first toothing arrangement is fixed with respect to rotation relative to the drive shaft and a second toothing arrangement connectable with the coupling device so that the second toothing arrangement is fixed with respect to rotation relative to coupling device. The first toothing arrangement and second toothing arrangement engage when the drive shaft and coupling device are coupled together for transmission of force.

Abstract: The invention relates to measures for controlling or reducing drag torque occurring in a multi-plate clutch device (202) due to temperature-related increased viscosity of an operating fluid which is supplied to the plates in operation. The aim of the invention is to enable a motor vehicle to be started or operated even at low temperatures. According to one aspect of the invention, a motor vehicle comprising a drive train is especially provided. Said drive train comprises a drive unit (238), gearbox (330) having a first gearbox input shaft and a second gearbox input shaft, and a clutch (202) having a first clutch device which is associated with the first gearbox input shaft, and a second clutch device which is associated with the second gearbox input shaft, for transferring torque between the drive unit and the gearbox. Said clutch devices are embodied in the form of plate clutches to which an operating fluid can be supplied, especially a cooling oil in order to operate the same.

Abstract: A turbine impeller rotates around a rotational axis in a housing unit, and a bridging clutch unit has a clutch element connected in an essentially nonrotatable fashion to the turbine impeller. The clutch element has friction area which can be brought into frictional contact with an opposing friction area on the housing unit. A pretensioning device acts on the clutch element to pretension it against the opposing friction area.

Abstract: The invention is directed to a dual clutch device or multiple disk clutch device for arrangement in a drivetrain of a motor vehicle between a drive unit and a transmission, wherein the clutch device (12a) has a plurality of radially staggered disk clutch arrangements (64a, 72a) which are associated, respectively, with a transmission input shaft (22a and 24a) of the transmission and are constructed, respectively, with a disk set (74a and 76a) having outer disks associated with an outer disk carrier (62a and 70a) and inner disks which can be brought into mutual driving engagement with the outer disks and which are associated with an inner disk carrier (82a and 86a), wherein every disk set has disks with linings and without linings which are constructed either as outer disks or as inner disks.

Abstract: A driving coupling for the torque transmission in the transmission line of a motor vehicle includes a shaft-hub coupling provided with longitudinal toothings for the releasable coupling of a crankshaft with a coaxially arranged hydrodynamic torque converter. The longitudinal toothings of the shaft-hub coupling have tooth cross-sections which become larger and smaller respectively in the longitudinal direction of the teeth. An elastomer layer is situated at least between the tooth flanks of the shaft and the hub which transmit the torque.

Abstract: A drive arrangement for a motor vehicle includes a drive shaft, a coupling device, and a coupling arrangement. The drive shaft is connectable with the coupling device for transmission of force solely via the coupling arrangement. The coupling arrangement has a first toothing arrangement connectable with the drive shaft so that the first toothing arrangement is fixed with respect to rotation relative to the drive shaft and a second toothing arrangement connectable with the coupling device so that the second toothing arrangement is fixed with respect to rotation relative to coupling device. The first toothing arrangement and second toothing arrangement engage when the drive shaft and coupling device are coupled together for transmission of force.

Abstract: A hydrodynamic torque converter includes a converter housing and a turbine wheel which is arranged in the converter housing and is rotatable with respect to the converter housing about a rotational axis of the converter. The torque converter further includes a lockup clutch for producing a torque transmission connection between the converter housing and the turbine wheel.

Abstract: A multiple clutch arrangement includes a drive member, first and second output members, a first clutch arrangement for selective activation of a first torque transmission path between the drive member and the first output member, and a second clutch arrangement for selective activation of a second torque transmission path between the drive member and the second output member. A torsional vibration damper arrangement is arranged in at least one of the first and second clutch arrangements in the associated torque transmission path.

Abstract: A drive arrangement for a motor vehicle includes a drive shaft, a coupling device, and a coupling arrangement. The drive shaft is connectable with the coupling device for transmission of force solely via the coupling arrangement. The coupling arrangement has a first toothing arrangement connectable with the drive shaft so that the first toothing arrangement is fixed with respect to rotation relative to the drive shaft and a second toothing arrangement connectable with the coupling device so that the second toothing arrangement is fixed with respect to rotation relative to coupling device. The first toothing arrangement and second toothing arrangement engage when the drive shaft and coupling device are coupled together for transmission of force.

Abstract: A rotary driving insertion connection, particularly for transmitting torque in a drivetrain of a motor vehicle between components or units of the drivetrain which are connected or are to be brought into a connection for transmitting torque, comprises a primary-side coupling area at a first component and a secondary-side coupling area at a second component. One of the coupling areas has a cutout which is defined by an inner circumference or at least an inner circumferential portion, and the other coupling area has at least one projecting portion having an outer circumference or at least an outer circumferential portion which is inserted or can be inserted into the cutout axially with reference to an axis of rotation in order to provide a positive rotary driving engagement between the inner circumference and the outer circumference. A plurality of coupling elements producing the positive rotary driving engagement is provided between the inner circumference and the outer circumference.

Abstract: A drive system includes an electric machine with a rotor arrangement which is connectable to a drive shaft for joint rotation therewith and a stator arrangement. The drive system further includes a coupling device such as a hydrodynamic coupling device with an inlet region that is connectable to the drive shaft for joint rotation therewith. A coupling element that is connectable to the drive shaft supports a rotor interaction region of the rotor arrangement is connectable to the inlet region of the coupling device for joint rotation.

Abstract: The invention is directed to a multiple-clutch device, such as a double-clutch device, for arranging in a drivetrain of a motor vehicle between a drive unit and a transmission, wherein the clutch device has a first clutch arrangement associated with a first transmission input shaft of the transmission and a second clutch arrangement associated with a second transmission input shaft of the transmission for transmitting torque between the drive unit and the transmission. According to one aspect of the invention, it is suggested that plates in a plate stack of a clutch arrangement constructed as a plate clutch arrangement which have at least one friction facing can be brought into frictional engagement with plates having no friction facing, wherein at least one of the plates not having a friction facing is thicker in axial direction than friction facing carrying elements of adjacent plates having at least one friction facing.

Abstract: The invention is directed to a multiple-clutch device, such as a double-clutch device, for arranging in a drivetrain of a motor vehicle between a drive unit and a transmission, wherein the clutch device has a first clutch arrangement associated with a first transmission input shaft of the transmission and a second clutch arrangement associated with a second transmission input shaft of the transmission for transmitting torque between the drive unit and the transmission.

Abstract: The invention is directed to a multiple-clutch device, such as a double-clutch device, for arranging in a drivetrain of a motor vehicle between a drive unit and a transmission, wherein the clutch device has a first clutch arrangement associated with a first transmission input shaft of the transmission and a second clutch arrangement associated with a second transmission input shaft of the transmission for transmitting torque between the drive unit and the transmission. According to one aspect of the invention, it is suggested that a bearing arrangement is associated with at least one of the clutch arrangements, wherein the latter is supported or can be supported so as to be relatively rotatable by means of the bearing arrangement on at least one of the transmission input shafts, at least one of which is constructed as a hollow shaft and a shaft constructed as a hollow shaft encloses the other shaft, preferably at least at the radial outer transmission input shaft which is constructed as a hollow shaft.

Abstract: A multiple-clutch device, possibly a double-clutch device, for arranging in a drivetrain of a motor vehicle between a drive unit and a transmission. the clutch device has a first clutch arrangement associated with a first transmission input shaft of the transmission and a second clutch arrangement associated with a second transmission input shaft of the transmission for transmitting torque between the drive unit and the transmission. The clutch arrangements are constructed as plate clutch arrangements, one of which has a greater effective friction radius than the other.

Abstract: The invention is directed to a multiple-clutch device, such as a double-clutch device, for arranging in a drivetrain of a motor vehicle between a drive unit and a transmission, wherein the clutch device has a first clutch arrangement associated with a first transmission input shaft of the transmission and a second clutch arrangement associated with a second transmission input shaft of the transmission for transmitting torque between the drive unit and the transmission. It is suggested that a bearing arrangement is associated with at least one of the clutch arrangements, wherein the latter is supported or can be supported so as to be relatively rotatable by means of the bearing arrangement on at least one of the transmission input shafts, at least one of which is constructed as a hollow shaft and a shaft constructed as a hollow shaft encloses the other shaft, preferably at least at the radial outer transmission input shaft which is constructed as a hollow shaft.

Abstract: The invention is directed to a multiple-clutch device, such as a double-clutch device, for arranging in a drivetrain of a motor vehicle between a drive unit and a transmission, wherein the clutch device has a first clutch arrangement associated with a first transmission input shaft of the transmission and a second clutch arrangement associated with a second transmission input shaft of the transmission for transmitting torque between the drive unit and the transmission. According to one aspect of the invention, it is suggested that at least one of the clutch arrangements has an actuating piston defining a pressure chamber for actuation, preferably for engagement of the clutch arrangement by means of a pressure medium, preferably a hydraulic medium, wherein the actuating piston divides the pressure chamber from an associated centrifugal force pressure compensation chamber which receives a pressure compensation medium.

Abstract: A hydrodynamic torque converter having a converter housing defining interior space for receiving a converter work fluid, a turbine wheel arranged in interior space of the converter housing and rotatable with respect to the converter housing, a lockup clutch having a coupling element axially displaceably arranged on the turbine wheel for selectively coupling the turbine wheel with the converter housing. The converter housing and the coupling element define a pressure fluid space capable of being filled with a pressure fluid. The interior space is separated from the pressure fluid space for preventing fluid communication between the interior space and the pressure fluid space.

Abstract: A vane wheel, in particular an impeller wheel or turbine wheel, for a hydrodynamic coupling device includes a shell which is rotatable about an axis of rotation and a plurality of vanes arranged at the shell in circumferential succession. Each of the plural vanes has at least one connection projection inserted into a connection recess provided in the shell. Further, the vanes each have a fastening projection arranged so that the vanes are fixedly connected with the shell in the area of this fastening projections.