Abstract: A hydrodynamic clutch device comprises an impeller wheel with a plurality of impeller wheel blades arranged successively in circumferential direction about an axis of rotation, a turbine wheel which is located axially opposite the impeller wheel and which has a plurality of turbine wheel blades arranged successively in circumferential direction, a stator wheel with a plurality of stator wheel blades which are arranged successively in circumferential direction in an area between the impeller wheel blades and the turbine wheel blades and are supported on a blade carrier. The stator wheel blades, the impeller wheel blades and the turbine wheel blades define a fluid circulation zone extending substantially annularly about the axis of rotation. A torsional vibration damper arrangement has a damper element arrangement which, at least in some areas, is arranged radially inside the fluid circulation zone and overlaps axially with the fluid circulation zone.

Abstract: A hydrodynamic coupling device, in particular, a torque converter or fluid clutch comprises a housing assembly (12), a turbine wheel (32) provided inside the housing assembly (12), a torque converter lockup clutch assembly (56), with which a torque transmission connection can be established as desired between the turbine wheel (32) and the housing assembly (12), whereby the torque converter lockup clutch assembly (56) comprises: at least one essentially annular friction element (66, 68), which is connected to the turbine wheel (32) for mutually rotating about a rotational axis (A), and; a pressing element (58), which is connected to the housing assembly (12) for mutually rotating about the rotational axis (A), and the at least one friction element (66, 68) can be subjected to the action of said pressing element in order to establish the torque transmission connection between the turbine wheel (32) and the housing assembly (12).

Abstract: The invention relates to a clutch arrangement, especially for an automobile, comprising a first housing arrangement (12) that is filled or can be filled with a fluid (12), a first friction surface arrangement (24) and a second friction surface arrangement (32) in said housing arrangement (12), which can be brought together to produce frictional interaction, wherein a fluid flow (24, 32) is produced in the housing arrangement (12) to cool the friction surface arrangements. To this end, a fluid circulation arrangement (72, 74) is provided for producing a fluid circulation that flows around at least certain areas of the first friction surface arrangement (24) and the second friction surface arrangement (32).

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 hydrodynamic clutch arrangement, particularly a torque converter or fluid coupling, includes a housing arrangement, a turbine wheel provided in the housing arrangement, and a lockup clutch arrangement by which a torque transmitting connection can be produced selectively between the turbine wheel and the housing arrangement. The lockup clutch arrangement includes at least two friction members which are rotatable with one of the housing arrangement and turbine wheel, and at least one counter-friction member which is interposed between the two friction members and is rotatable with the other of the housing arrangement and turbine wheel. A first friction facing on at least one of the friction members at its first side faces the at least one counter-friction member. This at least one of the friction members can be brought into frictional interaction, via a second friction facing, with another counter-friction member on its second side located opposite to the first side.

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 torsional vibration damper for a hydrodynamic torque converter is provided with at least one input part and an output part, which is given the ability to move relative to the input part by stored-energy elements, where the output part is designed as a hub disk, which is connected nonrotatably to a hub centered on a transmission input shaft. The hub disk extends radially inward to the area of the outside circumference of the hub, where it is connected directly to the hub.

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 clutch arrangement, particularly a torque converter or fluid coupling, includes a housing arrangement, a turbine wheel provided in the housing arrangement, a lockup clutch arrangement by which a torque transmitting connection can be produced selectively between the turbine wheel and the housing arrangement. The lockup clutch arrangement includes at least two friction members which are rotatable with a one of the housing arrangement and turbine wheel, at least one counter-friction member which is interposed between two friction members and is rotatable with the other of the housing arrangement and turbine wheel and can be brought into contact with friction surface regions of the friction members in friction surface regions of the counter-friction member. The counter-friction member has a substantially ring-shaped counter-friction member body having an outer radius (Ra) in a ratio of 1.1:1 to 1.

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 torsional vibration damper for incorporation into the torque transmission path between two components or subassemblies, especially for a hydrodynamic coupling device, includes at least two disk-like damper members. Each damper member has a radially outward coupling region and a radially inward coupling region, and at least one deformation region extending between the radially outward coupling region and the radially inward coupling region. Each deformation region is elastically deformable at least in some areas to permit a relative circumferential movement between the radially outward coupling region and the radially inward coupling region.

Abstract: An impeller wheel is connected to a housing cover on the drive side so as to be fixed with respect to rotation relative to it. The housing cover has a cover hub. At least one clutch plate of a lockup clutch is coupled to a plate driver and is arranged between the housing cover and a piston which is displaceable axially between an engaged position and a disengaged position. In the engaged position, the clutch plate is coupled with the impeller wheel so as to be fixed with respect to rotation relative to it and in the disengaged position the clutch plate is supported so as to be rotatable relative to the impeller wheel. The piston is supported on the cover hub and is connected to a driver disk so as to be fixed with respect to rotation relative to it, this driver disk being connected to the cover hub so as to be fixed with respect to rotation relative to it. The piston is supported in axial direction at the cover hub in the disengaged position.

Abstract: A hydrodynamic coupling device for producing a torque transmission connection between a drive unit and a transmission is provided including a first coupling device attached to the drive unit for coupling the hydrodynamic coupling device with the drive unit for transmitting a torque between the hydrodynamic coupling device and the drive unit and a second coupling device attached to the transmission for coupling the hydrodynamic coupling device with the transmission for transmitting a driving and/or braking torque between the hydrodynamic coupling device and the transmission. A method of making a hydrodynamic coupling device is also provided.

Abstract: A hydrodynamic clutch device comprises an impeller wheel with a plurality of impeller wheel blades arranged successively in circumferential direction about an axis of rotation, a turbine wheel which is located axially opposite the impeller wheel and which has a plurality of turbine wheel blades arranged successively in circumferential direction, a stator wheel with a plurality of stator wheel blades which are arranged successively in circumferential direction in an area between the impeller wheel blades and the turbine wheel blades and are supported on a blade carrier. The stator wheel blades, the impeller wheel blades and the turbine wheel blades define a fluid circulation zone extending substantially annularly about the axis of rotation. A torsional vibration damper arrangement has a damper element arrangement which, at least in some areas, is arranged radially inside the fluid circulation zone and overlaps axially with the fluid circulation zone.

Abstract: A freewheel unit intended especially for the stator of a hydrodynamic torque converter, allows first and second elements to rotate relative to each other around a rotational axis essentially in only one direction. A locking element carrier extends in the circumferential direction around the rotational axis and comes at least one first locking element which extends away from this carrier toward the first element in a first circumferential direction. At least one first locking element can come to rest against at least one blocking surface provided on the first element to prevent any relative rotation between the first element and the locking element carrier in one direction of relative rotation.

Abstract: A hydrodynamic clutch device, especially a hydrodynamic torque converter or fluid clutch, comprises a housing arrangement with a housing hub area, where a circumferentially extending fluid passage space is provided. This space is in fluid-exchange connection with a working fluid space in the housing arrangement and also in fluid-exchange connection or capable of being brought into such connection with a fluid passage opening provided in a power takeoff element. At least certain areas of the fluid passage space are divided into chambers arranged around the circumference.

Abstract: A freewheel arrangement, in particular for a guide wheel of a hydrodynamic torque converter, permits a relative rotation between two elements in essentially only one relative rotational direction with respect to one another about an axis of rotation. At least one pawl is pivotably supported on a first of the two elements and has a pawl section which can come into contact with a blocking surface of the second of the two elements. At least one pawl is formed by a plurality of pawl plate elements which can be stamped from sheet metal.

Abstract: A hydrodynamic coupling device comprises a casing arrangement and a turbine rotor which can be rotated about an axis of rotation (A) in the casing arrangement. The turbine rotor has a turbine rotor shell which supports a plurality of turbine rotor blades, and a turbine rotor hub which is coupled or can be coupled to a drive element for joint rotation. A lock-up clutch arrangement is provided for the optional production of a torque transmission connection between the turbine rotor and the casing arrangement, and a torsional vibration damper arrangement couples the turbine rotor for torque transmission to a coupling element of the lock-up clutch arrangement. A positive drive arrangement is provided on the torsional vibration damper arrangement, which positive drive arrangement is in drive engagement for torque transmission with a mating positive drive arrangement on the turbine rotor. The mating positive drive arrangement is formed integrally on the turbine rotor shell.

Abstract: A hydrodynamic coupling device is provided including a housing, a lock up clutch, a friction surface mechanism, a fluid duct and three connecting ducts. The lock up clutch has a clutch element arranged in the housing and may be pressed against the housing. The friction surface mechanism is arranged between the clutch element and the housing. The clutch element and the friction surface mechanism separate an interior of the hydrodynamic coupling device into a first fluid space and a second fluid space. The fluid duct means is in the friction surface mechanism and permits the working fluid to flow into and out of the first fluid space while preventing the working fluid from flowing out of the first fluid space into the second fluid space. The connecting ducts are in the fluid duct, with the first connecting duct is capable of permitting flow of the working fluid to the first fluid space, the second connecting duct is capable of permitting flow of the working fluid into and out of the second fluid space.

Abstract: A torsional vibration damper for a hydrodynamic torque converter is provided with at least one input part and an output part, which is given the ability to move relative to the input part by stored-energy elements, where the output part is designed as a hub disk, which is connected nonrotatably to a hub centered on a transmission input shaft. The hub disk extends radially inward to the area of the outside circumference of the hub, where it is connected directly to the hub.