A clutch arrangement includes a housing filled with fluid, a first friction surface formation rotatable with the housing around an axis of rotation, a second friction surface formation rotatable with a driven element around the axis of rotation, a pressing element rotatable with the housing around t
A clutch arrangement includes a housing filled with fluid, a first friction surface formation rotatable with the housing around an axis of rotation, a second friction surface formation rotatable with a driven element around the axis of rotation, a pressing element rotatable with the housing around the axis of rotation and which divides an interior space of the housing into a first spatial area and a second spatial area. Depending on fluid pressure in the first and fluid pressure in the second spatial areas, the pressing element is movable with respect to the housing for producing and canceling a frictional engagement between the and the second friction surface formations. A fluid supply system for the first spatial area and/or the second spatial area includes at least a first fluid flow path. The fluid can be supplied to the associated spatial area via at least one fluid flow path and fluid can be removed from the associated spatial area via at least one fluid flow path.
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1. A clutch arrangement, comprising: a housing having an interior space and configured to be filled with fluid;a first friction surface formation configured to be rotatable with the housing around an axis of rotation;a second friction surface formation configured to be rotatable with a driven elemen
1. A clutch arrangement, comprising: a housing having an interior space and configured to be filled with fluid;a first friction surface formation configured to be rotatable with the housing around an axis of rotation;a second friction surface formation configured to be rotatable with a driven element around the axis of rotation;a pressing element configured to be rotatable with the housing around the axis of rotation that divides the interior space of the housing into a first spatial area and a second spatial area, the pressing element is movable with respect to the housing for producing and canceling a frictional engagement between the first friction surface formation and the second friction surface formation based at least in part on the fluid pressure in the first spatial area and the fluid pressure in the second spatial area;a fluid supply system for at least one of the first spatial area and the second spatial area comprising at least one of a first fluid flow path for the first spatial area and a second fluid flow path for the second spatial area, wherein the fluid is supplied to the respective spatial area via the respective fluid flow path and the fluid is removed from the associated spatial area via at the respective fluid flow path; andat least one delivery element configured to generate an internal fluid circulation, wherein the second friction surface formation comprises a friction element connected to the pressing element, and a delivery surface is provided at least one of at least partially at the friction element and at an intermediate element connecting the friction element to the pressing element, andwherein the delivery element forms at least one of: an integral component part of the pressing element,a friction element of the second friction surface formation connected to the pressing element, andan intermediate element connecting the friction element to the pressing element, andwherein the delivery element is provided at a delivery member that is fixedly connected thereto. 2. The clutch arrangement according to claim 1, wherein the fluid supply system is a two-line type having a respective fluid flow path each for the first spatial area and the second spatial area. 3. The clutch arrangement according to claim 1, further comprising at least one through-opening in the pressing element for the exchange of fluid between the first spatial area and the second spatial area. 4. The clutch arrangement according to claim 1, wherein the fluid supply system is a three-line type with a fluid flow path for the second spatial area and two fluid flow paths for the first spatial area. 5. The clutch arrangement according to claim 1, wherein the fluid supply system is a single-line type with one fluid flow path for the second spatial area. 6. The clutch arrangement according to claim 1, wherein the fluid supply system is an expanded two-line type further comprising: a fluid flow path for the second spatial area; and a fluid supply path and a fluid discharge path for the first spatial area. 7. The clutch arrangement according to claim 1, wherein at least the second friction surface formation is arranged in the first spatial area. 8. The clutch arrangement according to claim 1, further comprising an axially elastic coupling arrangement configured to couple the pressing element with the housing for rotation around the axis of rotation. 9. The clutch arrangement according to claim 8, wherein the coupling arrangement comprises a plurality of leaf springs. 10. The clutch arrangement according to claim 9, further comprising a preloading arrangement associated with the pressing element configured to preload the pressing element in a direction in which frictional engagement of the first friction surface with the second friction surface is produced. 11. The clutch arrangement according to claim 10, wherein the preloading arrangement comprises a disk spring unit that axially preloads the pressing element with respect to the housing. 12. The clutch arrangement according to claim 8, wherein the preloading arrangement comprises an axially elastic coupling arrangement. 13. The clutch arrangement according to claim 1, further comprising a preloading arrangement associated with the pressing element configured to preload the pressing element in a direction in which the frictional engagement of the first friction surface formation with the second friction surface formation is canceled. 14. The clutch arrangement according to claim 1, further comprising a torsional vibration damper arrangement configured to couple the second friction surface formation the driven element for rotation around the axis of rotation. 15. The clutch arrangement according to claim 14, wherein the torsional vibration damper arrangement is arranged in the first spatial area. 16. The clutch arrangement according to claim 15, wherein the torsional vibration damper arrangement radially overlaps at least one of the first friction surface formation and the second friction surface formation at least partially. 17. The clutch arrangement according to claim 1, wherein a plurality of delivery elements are provided successively in circumferential direction. 18. The clutch arrangement according to claim 1, wherein the at least one delivery element comprises a radially and an axially extended delivery surface which is rotatable with the housing around the axis of rotation. 19. The clutch arrangement according to claim 18, wherein the delivery surface is provided at least partially at the pressing element. 20. The clutch arrangement according to claim 1, wherein the delivery surface is provided at least partially at the pressing element. 21. The clutch arrangement according to claim 1, wherein the delivery surface is provided on at least two of the elements comprising: the pressing element, the friction element and, a connection element. 22. The clutch arrangement according to claim 1, wherein the at least one delivery element at least one of forms an integral component part of the housing and is provided at a delivery member secured to the housing. 23. The clutch arrangement according to claim 1, wherein a fluid flow generated by the internal fluid circulation is at least twice as great as a fluid flow in and out of the first spatial area generated by the fluid supply system for the first spatial area at a rotational speed of the housing in the range of 2000 rpm and at a rotational speed of the driven element in the range of 0 rpm. 24. The clutch arrangement according to claim 1, wherein the second friction surface formation comprises a friction element connected to the pressing element, and the second spatial area is limited by at least one of: the pressing element and the friction element and a connection element connecting the pressing element to the friction element. 25. The clutch arrangement according to claim 1, wherein at least one friction surface formation of the first friction surface formation and second friction surface formation, comprises at least one axially elastic friction element. 26. The clutch arrangement according to claim 25, wherein the least one axially elastic friction element, comprises at least one of an undulating and plate-like shape. 27. The clutch arrangement according to claim 1, wherein at least one friction surface formation of the first friction surface formation and second friction surface formation comprises at least one friction element with at least one friction lining providing a friction surface, and at least one opening for the passage of fluid is provided in at least one friction lining. 28. The clutch arrangement according to claim 1, wherein the pressing element comprises at least one opening for supplying fluid to the area of the friction surface formations. 29. The clutch arrangement according to claim 1, wherein at least one friction surface formation of the first friction surface formation and second friction surface formation comprises a plurality of friction elements. 30. The clutch arrangement according to claim 1, wherein a volume of the first spatial area is greater than a volume of the second spatial area, and the fluid can be supplied to the second spatial area via the second fluid flow path to produce frictional engagement of the friction surface formations. 31. A drive system for a vehicle comprising a drive unit, an automatic transmission and a clutch arrangement in the torque transmission path between the drive unit and the automatic transmission the clutch arrangement comprising: a housing having an interior space and configured to be filled with fluid;a first friction surface formation configured to be rotatable with the housing around an axis of rotation;a second friction surface formation configured to be rotatable with a driven element around the axis of rotation;a pressing element configured to be rotatable with the housing around the axis of rotation that divides the interior space of the housing into a first spatial area and a second spatial area, the pressing element is movable with respect to the housing for producing and canceling a frictional engagement between the first friction surface formation and the second friction surface formation based at least in part on the fluid pressure in the first spatial area and the fluid pressure in the second spatial area;a fluid supply system for at least one of the first spatial area and the second spatial area comprising at least one of a first fluid flow path for the first spatial area and a second fluid flow path for the second spatial area, wherein the fluid is supplied to the respective spatial area via the respective fluid flow path and the fluid is removed from the associated spatial area via at the respective fluid flow path; andat least one delivery element configured to generate an internal fluid circulation, wherein the second friction surface formation comprises a friction element connected to the pressing element, and a delivery surface is provided at least one of at least partially at the friction element and at an intermediate element connecting the friction element to the pressing element, andwherein the delivery element forms at least one of: an integral component part of the pressing element,a friction element of the second friction surface formation connected to the pressing element, andan intermediate element connecting the friction element to the pressing element, andwherein the delivery element is provided at a delivery member that is fixedly connected thereto. 32. The drive system for a vehicle according to claim 31, wherein a clutch torque which is generated by a preloading action of a preloading arrangement is greater than a maximum driving torque of the drive unit. 33. The drive system according to claim 31, wherein a clutch torque which is generated by a preloading action of a preloading arrangement is less than a maximum driving torque of the drive unit. 34. The drive system according to claim 33, wherein a differential fluid pressure is adjusted between the first spatial area and the second spatial area in a driving state of the drive system that the clutch torque of the clutch arrangement such that there is a predetermined safety margin above the actual driving torque. 35. The drive system according to claim 34, wherein the predetermined safety margin is in the range of 5% to 30%, of the actual driving torque of the drive unit. 36. The drive system according to claim 35, further comprising a spring element that exerts a force on the pressing element sufficient to transmit at least a portion of a maximum engine torque. 37. The clutch arrangement according to claim 36, wherein the preloading arrangement comprises an axially elastic coupling arrangement.
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