Abstract: A hydrodynamic clutch arrangement includes a clutch housing in which at least one hydrodynamic circuit formed by at least one pump wheel and one turbine wheel is provided. A bridging clutch can be actuated to produce an engaging movement to establish a working connection between a drive and a takeoff and to produce a disengaging movement to release this working connection. The hydrodynamic circuit and at least one pressure space are each connected by a flow route to pressure medium reservoir for actuating the clutch. At least one flow route serving to the fill the clutch housing is provided with a device for reducing the flow volume, which opens during the operating state to unblock the flow route but closes during the non-operating state to delay, at least, the drop in the internal pressure inside the clutch housing and thus in its filling volume.

Abstract: A hydrodynamic clutch arrangement includes a clutch housing which can rotate about an axis of rotation; a hydrodynamic circuit formed by a pump wheel and a turbine wheel in the clutch housing; and a bridging clutch which can be actuated to establish and release a working connection between a drive and a takeoff. First flow routes connect the hydrodynamic circuit and a pressure space to at least one pressure medium reservoir, wherein said first flow routes serve to fill the clutch housing with pressure medium for actuating the bridging clutch. A second flow route carries pressure medium out of the clutch housing during an operating state, and a flow reducer in the second flow route closes to at least impede flow out of clutch housing in a non-operating state.

Abstract: A hydrodynamic torque converter includes a housing with an interior space and a pump wheel; a turbine wheel installed in the interior space and rotatable about an axis with respect to the housing; and a bridging clutch including a first friction surface formation connected essentially nonrotatably to the converter housing, and a second friction surface formation connected essentially nonrotatably to the turbine wheel. A piston element divides the interior space into a first space containing the turbine wheel and a second space facing away from the first space, wherein a pressure increase in the second space brings the first and second friction formations into frictional engagement to connect the housing to the turbine wheel for rotation in common. Fluid flow openings in the piston element connect the second space to the first space in the radial area of the friction surface formations.

Abstract: A clutch device including a housing connected to a drive for rotation in common around an axis of rotation and fillable with a fluid; first friction elements connected to the housing by a first friction element carrier for rotation in common around the axis of rotation; second friction elements connected to a takeoff by a second friction element carrier for rotation in common around the axis of rotation; a piston element configured to exert a force so that the first and second friction elements frictionally engage each other; an abutment arrangement arranged on the first or second friction element carrier, the abutment arrangement providing a support for the first and second friction elements; and an elastic arrangement disposed in a path of force transmission between the piston element and the abutment arrangement and axially compressible when the piston element exerts the force on the first and second friction elements.

Abstract: A drive arrangement for a hybrid vehicle includes an internal combustion engine with a takeoff shaft; an electrical machine with a rotor and a stator; a first and a second clutch, each with an input part and an output part; and a housing, which surrounds at least the clutches and the electrical machine. The input part of the first clutch is in working connection with the takeoff shaft of the internal combustion engine, and the output part of the second clutch can be connected to the drive wheels of the vehicle. A torque-transmitting device for transmitting a torque is installed between the output part of the first clutch and the input part of the second clutch, where the housing has an intermediate housing wall, on which the rotor of the electrical machine is at least indirectly supported, and where the rotor of the electrical machine is or can be connected nonrotatably to the torque-transmitting device.

Abstract: A hydrodynamic torque converter includes a pump wheel with a plurality of pump wheel vanes arranged in a row in the circumferential direction around an axis of rotation; a turbine wheel, which can rotate relative to the pump wheel around the axis of rotation and which has a plurality of turbine wheel vanes arranged in a row in the circumferential direction around the axis of rotation; and a stator with a plurality of stator vanes arranged in a row in the circumferential direction around the axis of rotation. The pump wheel, the turbine wheel, and the stator define a hydrodynamic circuit with an outside diameter Da, an inside diameter Di, and a maximum axial length La, where (1) Di/Da<0.58 and (2) Da5?5.2?1×1010×M, where M is the maximum torque in Nm to be transmitted via the hydrodynamic torque converter, and Da is the outside diameter of the hydrodynamic circuit in mm.

Abstract: A device for coupling a housing arrangement of a clutch device, particularly a hydrodynamic clutch device, to a rotor arrangement of an electric machine, wherein the rotor arrangement can be connected to a drive shaft so as to be fixed with respect to rotation relative to it, this drive shaft being rotatable around an axis of rotation. The electric machine further has a stator arrangement which can be brought into electromagnetic interaction with the rotor arrangement and the drive shaft can be driven in rotation by the electric machine and/or electrical energy can be generated by rotation of the drive shaft. First teeth provided at the rotor arrangement and second teeth provided at the housing arrangement are in a rotational driving engagement with one another or can be brought into a rotational driving engagement with one another, and an axial securing arrangement holds the rotor arrangement in axial direction with respect to the housing arrangement.

Abstract: A torsional vibration damper for a bridging clutch of a hydrodynamic clutch arrangement has a drive-side damping device, which can be brought into working connection with the housing of the clutch arrangement and is provided with a drive-side transmission element, which acts via a drive-side energy-storage group on an intermediate transmission element, and a takeoff-side damping device, which uses a takeoff-side group of energy-storage devices to establish a working connection between the intermediate transmission element and a takeoff-side transmission element, which is connected to a takeoff-side component of the hydrodynamic clutch arrangement. A predetermined stiffness ratio is obtained between the energy-storage devices of a first group and the energy-storage devices of a second group, and the energy-storage devices of the drive-side group have a stiffness different from that of the assigned energy-storage devices of the takeoff-side group.

Abstract: A torsional vibration damper for a piston-equipped bridging clutch of a hydrodynamic clutch device includes a drive-side transmitting element for at least one damping unit, which is in working connection by way of a transmitting element on the power takeoff-side with a power takeoff component assigned to it, where at least one angle of rotation limiter is assigned to the damping unit. At least one projection is provided on one of the transmitting elements, this projection extending toward the other transmitting element and engaging in an assigned recess in the other transmitting element with predetermined play in the axial direction to form an angle of rotation limiter, where the recess is provided with an appropriate circumferential dimension for the projection to ensure the possibility of a predetermined relative deflection between the two transmitting elements.

Abstract: A torsional vibration damper on the bridging clutch of a hydrodynamic clutch arrangement has a first connecting device, which can be brought into working connection with the clutch housing and with a drive-side transmission element. The drive-side transmission element is connected via first energy-storage devices to an intermediate transmission element. The torsional vibration damper also has a second connecting device for establishing a working connection via second energy-storage devices between the intermediate transmission element and a takeoff-side transmission element, which is connected to a takeoff-side component of the hydrodynamic clutch arrangement. The intermediate transmission element accepts a mass element, located operatively between the two connecting devices.

Abstract: A fluid clutch includes a housing having an interior that can be filled with fluid, an output element that can be rotated relative to the housing, a first friction surface arrangement coupled to the housing, a second friction surface arrangement coupled to the output element, and means for bringing the first and second friction surface arrangements into frictional engagement. A fluid circulation arrangement in the housing causes fluid to circulate around the friction surfaces without requiring a simultaneous exchange of fluid to and from the interior.

Abstract: A device for coupling a housing arrangement (38) of a clutch device, particularly a hydrodynamic clutch device (14), to a rotor arrangement (24) of an electric machine (12), wherein the rotor arrangement (24) of the electric machine (12) is coupled, or is to be coupled, to a drive shaft (30) so as to be fixed with respect to rotation relative to it, this drive shaft (30) being rotatable around an axis of rotation A), wherein the electric machine (12) further has a stator arrangement (16) which can be brought into electromagnetic interaction with the rotor arrangement (24) and the drive shaft (30) can be driven in rotation by the electric machine (12) and/or electrical energy can be generated by rotation of the drive shaft (30), wherein the device comprises toothing configurations (80, 76) at the rotor arrangement (24) and at the housing arrangement (38) which are in a rotational driving engagement with one another or can be brought into a rotational driving engagement with one another, further comprising an a

Abstract: A clutch arrangement, especially for a motor vehicle, comprising a housing arrangement (12) which is filled or which can be filled with fluid, at least one first friction element (22) which can be jointly rotated with the housing arrangement (12) and at least one second friction organ (24) which can be jointly rotated with an output element (18) and which can be brought to rest against the at least one first friction element (22) in order to produce at least one interactive friction effect. At least one friction element (22, 24) is embodied in such a way that fluid can circulate around at least certain areas of the friction elements (22, 24).

Abstract: A torsional vibration damper for a piston-equipped bridging clutch of a hydrodynamic clutch device includes a drive-side transmitting element for at least one damping unit, which is in working connection by way of a transmitting element on the power takeoff-side with a power takeoff component assigned to it, where at least one angle of rotation limiter is assigned to the damping unit. At least one projection is provided on one of the transmitting elements, this projection extending toward the other transmitting element and engaging in an assigned recess in the other transmitting element with predetermined play in the axial direction to form an angle of rotation limiter, where the recess is provided with an appropriate circumferential dimension for the projection to ensure the possibility of a predetermined relative deflection between the two transmitting elements.

Abstract: A hydrodynamic torque converter comprising a housing arrangement (18), which can be filled with working fluid; a pump wheel (30); a turbine wheel (26), which is mounted in the housing arrangement (18) with freedom to rotate with respect to the housing around an axis of rotation (A); and a bridging clutch arrangement (50) for a torque-transmitting connection between the housing arrangement (18) and the turbine wheel (26). The bridging clutch (58) may have at least one first friction element (60, 62), which can rotate together with the housing arrangement (18), and at least one second friction element (64, 66), which can rotate together with the turbine wheel (26), which friction elements can be brought into frictional contact with each other to provide the torque-transmitting connection, where at least one of the friction elements (60, 62, 64, 66) is designed to produce a fluid circulation (Z), which flows around at least certain areas of the friction elements (60, 62, 64, 66).

Abstract: A hydrodynamic clutch device, in particular a torque converter or fluid clutch, includes a housing, a turbine wheel in the housing, and a torque-converter lock-up clutch, which is used to selectively produce a torque-transfer connection between the turbine wheel and the housing. The torque-converter lock-up clutch includes at least one substantially annular friction element, which is connected to the turbine wheel in order to rotate with the latter about a rational axis, the element having a friction surface region and a contact element. The contact element is connected to the housing in order to rotate with the latter about the rotational axis and impinges upon the friction surface region of the friction elements to produce the torque-transfer connection between the turbine wheel and the housing. The contact element is connected to the housing assembly in a rotationally rigid manner in a zone lying radially outside the friction surface region.

Abstract: A hydrodynamic coupling device, especially a hydrodynamic torque converter, includes a housing which is rotatable about an axis of rotation, a turbine wheel mounted for rotation with respect to said housing, and a bridging clutch for transmitting torque between the housing and the turbine. The bridging clutch includes a first friction element which is essentially fixed against rotation with respect to the housing, and at least one second friction element which is essentially fixed against rotation with respect to the turbine, the friction elements having respective friction surfaces which can be brought into contact with each other. A first channel, provided in one of the friction surfaces, has first channel sections with radially closed inner ends and second channel sections with radially closed outer ends.

Abstract: A hydrodynamic coupling device, in particular a torque converter or fluid clutch, comprises a housing assembly, a turbine wheel provided inside the housing assembly, and a torque converter lockup clutch assembly for establishing a torque transmission connection as desired between the turbine wheel and the housing assembly. The torque converter lockup clutch assembly comprises at least one essentially annular friction element, which is connected to the turbine wheel for mutually rotating about a rotational axis, and a pressing element which is connected to the housing assembly for mutually rotating about the rotational axis. The at least one friction element can be subjected to the action of the pressing element in order to establish the torque transmission connection between the turbine wheel and the housing assembly. The ratio of a flow outside diameter in the area of the turbine wheel to a friction outside diameter of the at least one friction element ranges from 1.30 to 1.80, preferably from 1.35 to 1.

Abstract: A torsional vibration damper on the bridging clutch of a hydrodynamic clutch arrangement has a first connecting device, which can be brought into working connection with the clutch housing and with a drive-side transmission element. The drive-side transmission element is connected via first energy-storage devices to an intermediate transmission element. The torsional vibration damper also has a second connecting device for establishing a working connection via second energy-storage devices between the intermediate transmission element and a takeoff-side transmission element, which is connected to a takeoff-side component of the hydrodynamic clutch arrangement. The intermediate transmission element accepts a mass element, located operatively between the two connecting devices.

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.