Abstract: A hydrodynamic coupling device having a housing which is, or can be, filled with hydraulic fluid, a turbine wheel which is rotatably arranged in the housing and is, or can be, connected to an output shaft for joint rotation, and a sliding bearing arrangement which the turbine wheel is rotatably mounted relative to the housing, and which has a hydraulic fluid channel arrangement for the passage of hydraulic fluid from radially outside to radially inside relative to the region of the output shaft, or vice versa.

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 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 clutch device within whose housing a first fluid chamber and a second fluid chamber are separated by a piston which is movable by a fluid pressure differential between the fluid chambers. The piston serves to actuate a friction clutch whose friction surfaces are arranged in the first fluid chamber. Fluid can be guided through the first fluid chamber independent from the fluid pressure in the second fluid chamber in order to conduct frictional heat away from the friction clutch and its friction surfaces. For this purpose, fluid passages through which fluid allocated to the first fluid chamber can flow are allocated to the friction surfaces.

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 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 torsional vibration damper, especially for transmission of torque in a hydrodynamic torque converter, includes a primary side, a secondary side, and a plurality of damper spring arrangements arranged between the primary side and the secondary side such that the primary side is rotatable relative to the secondary side against an urgency of the damper spring arrangement. Each damper spring arrangement has at least one spring and is supported in each circumferential end area at a supporting area of the secondary side and at a first and a second supporting area of the primary side which are arranged on both axial sides of the associated supporting area of the secondary side. The primary side has a substantially annular carrier part and at least one of the first and second supporting areas of the primary side are constructed as separate parts that are connected for rotation with the primary side.

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 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: 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 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 stator wheel for a hydrodynamic torque converter comprises a stator wheel hub arrangement and a plurality of stator wheel blades arranged successively in the circumferential direction of the stator wheel hub arrangement. Each stator wheel blade has a radial inner flow-around profile area and a radial outer flow-around profile area such that a flow-around profile in the radial outer flow-around profile area differs from a flow-around profile in the radial inner flow-around profile area.

Abstract: A torsional vibration damper for a lockup clutch of a hydrodynamic clutch device has a drive-side damper element which is in an operative connection with a turbine shell and a driven-side damper element which is connected with the drive-side damper element via a damping device having at least one energy accumulator acting in the circumferential direction and is in a working connection with a turbine hub. The drive-side damper element is constructed as a planetary carrier for at least one gear unit element of a planetary gear set, while the driven-side damper element acts as another gear unit element of the planetary gear set.

Abstract: A turbine wheel arrangement for a hydrodynamic torque converter comprises an outer shell connected with a turbine wheel hub for common rotation and a plurality of blades arranged successively along the circumferential direction at the outer shell. A side of the blades remote from the outer shell is connected to an inner shell so that fluid flow channels are formed between adjacent ones of the blades together with the outer shell and the inner shell. At least one of the blades has an outer blade area lying closer to the outer shell that has a blade contour adapted to a first operating state, especially a starting operation, of a torque converter and an inner blade area lying closer to the inner shell that has a blade contour adapted to a second operating state, especially a driving state, of the torque converter.

Abstract: A hydrodynamic torque converter is constructed with a converter circuit which comprises at least an impeller wheel, a turbine wheel and a stator wheel. An inner wall connecting the individual blades is provided at both the impeller wheel and at the turbine wheel. The inner walls form an inner torus. The radially inner ends or the radially outer ends of the inner walls have extensions axially toward the other wheel. The extension of the front one of these walls, considered in the direction of flow, has a lengthening extending toward the other wheel, by which lengthening the extension overlaps the extension at the other wheel by a predetermined axial length with a predetermined radial offset in the direction of flow.

Abstract: A stator for a hydrodynamic torque converter which is produced by injection molding with axially drawn dies. The stator hub has stator blades produced by use of a thermoplastic material to fill the dies in the injection molding process. The stator blades are positioned relative to one another on the stator hub in such a way that the flow outlet of every stator blade is arranged at an offset of only the width of a gap relative to the flow inlet of the subsequent stator blade in the circumferential direction.

Abstract: A hydrodynamic torque converter with a converter circuit having at least an impeller wheel, a turbine wheel with a turbine hub, and a stator wheel, which together enclose an inner torus. A torsional vibration damper arranged within the inner torus is operably connected with a control disk that is connected with a driven shaft so as to be fixed with respect to rotation relative to it. The torque converter is further constructed with a lockup clutch by which can transmit a torque provided by a drive while bypassing the converter circuit. A controlling system for the torsional vibration damper is provided on the drive side of the turbine wheel and the control disk which has a driven-side controller for the torsional vibration damper, is arranged so as to be fixed with respect to rotation relative to the turbine hub but rotatable relative to the turbine wheel.

Abstract: A torsional vibration damper for a lockup clutch of a hydrodynamic torque converter is provided with a drive-side damper element which is in operative connection with energy accumulators of a damping device and is provided with a driven-side damper element serving to support the energy accumulators in the circumferential direction. The individual energy accumulators are connected with one another by sliding elements which are movable in the circumferential direction along a guide path. The guide path is accommodated at one of the damper elements and a securing device for securing against axial movements of the sliding elements is associated with the guide path. This securing device is formed at the side of the guide path which faces the sliding elements and has a positive engagement with at least one of the sliding elements.

Abstract: A torque converter comprises a converter housing having a converter cover and an impeller wheel. The converter housing is connectable to a driving unit. A turbine wheel arranged in the converter housing is rotatably mounted for rotating about an axis of rotation with respect to the converter housing. The turbine wheel has a turbine wheel shell and a turbine wheel hub. The turbine wheel hub is connectable to a converter driven shaft. The turbine wheel shell is selectively connectable to the turbine wheel hub for connection with respect to rotation via a first coupling arrangement.

Abstract: A torque converter having a converter housing which is coupled to a driving unit, a turbine wheel which is arranged in the converter housing and is rotatable with respect to the converter housing about an axis of rotation and has a turbine wheel shell and a turbine wheel hub which is connected with the turbine wheel shell and which can be coupled with or is coupled with a converter driven shaft. A lockup clutch provides selectable rotational coupling of the converter housing with the turbine wheel, and a torsional vibration damper arrangement is provided in the power transmission path between the converter housing and the turbine wheel hub and/or between the turbine wheel shell and the turbine wheel hub. A friction device is connected parallel to the torsional vibration damper arrangement in the power transmission path for generating a frictional force which may be changed in a selected manner.