Torque transfer device

1. A torque transfer device for torque transfer between a drive unit and a transmission, with at least one multi-disk clutch ( 3 , 4 ), comprising a first multi-disk clutch having at least one disk packet, comprising outer disks, connected non-rotatably with an outer disk carrier, and inner disks, connected non-rotatably with an inner disk carrier, and with at least one operating lever device for operating the first multi-disk clutch, wherein a pressure transfer device ( 36 ) extends between the disk packet ( 11 ) and the operating lever device ( 34 ) through at least one pass-through opening ( 38 ), which is cut out in a carrier device ( 30 ), wherein a seal device ( 50 , 140 ) is operatively connected to a second outer disk carrier of a second multi-disk clutch, wherein said seal device is disposed between the inner disk carrier ( 17 ) and the pass-through opening ( 38 ).

2. The torque transfer device recited in claim 1 , wherein the seal device ( 50 , 140 ) comprises a seal ring ( 51 , 142 ) overlapping an interface between the inner disk carrier ( 17 ) and the disk packet ( 11 ) in radial direction.

3. The torque transfer device recited in claim 2 , wherein the seal ring ( 51 ) at least partially comprises a substantially L-shaped, U-shaped, or C-shaped cross section.

4. The torque transfer device recited in claim 2 , wherein the seal ring ( 51 ), seen in cross section comprises an arm ( 52 ), which is disposed in radial direction between the pressure transfer device ( 36 ) and the second outer disk carrier ( 24 ) of the second multi-disk clutch ( 4 ), which is disposed radially within the first multi-disk clutch ( 3 ).

5. The torque transfer device recited in claim 2 , wherein the seal ring ( 51 ) seen in cross section has an arm ( 52 ), which is disposed offset in axial direction relative to the inner disk carrier ( 17 ) and radially outside of the inner disk carrier ( 17 ).

6. The torque transfer device recited in claim 4 , wherein the end of the arm ( 52 ) is disposed between the inner disk carrier ( 17 ) and an associated disk ( 81 ).

7. The torque transfer device recited in claim 2 , wherein the seal ring ( 51 ), seen in cross section, comprises another arm, which is disposed offset in axial direction relative to the inner disk carrier, and radially within the inner disk carrier ( 17 ).

8. The torque transfer device recited in claim 1 , wherein the seal device ( 50 ) comprises a transportation safety component that is operatively arranged to engage the second outer disk carrier of the second multi-disk clutch for maintaining an axial position of the outer disk carrier.

9. The torque transfer device recited in claim 1 , wherein the seal device ( 50 ) comprises an installation safety mechanism, and the installation safety mechanism is a bayonet lock for causing an engagement of the seal device upon installation of the installation safety mechanism.

10. The torque transfer device recited in claim 1 , wherein the seal device ( 50 ) comprises at least one lug ( 54 ), hook, arm, or combinations thereof, which at least partially extend radially towards the inside respectively, and engage into a depression, a pass-through opening, or a groove ( 55 ), which are respectively provided in the second outer disk carrier ( 24 ), which is disposed radially within the first multi-disk clutch ( 3 ).

11. The torque transfer device recited in claim 10 , wherein the lug ( 54 ), hook, arm, or combinations thereof, is resiliently preloaded.

12. The torque transfer device recited in claim 2 , wherein the seal ring ( 51 ) is resiliently preloaded.

13. The torque transfer device recited in claim 1 , wherein the seal device ( 50 ) is provided, so that the opening motion of the first multi-disk clutch ( 3 ) is supported through the seal device.

14. The torque transfer device recited in claim 1 , wherein the seal device ( 50 ) is provided, so that the seal device ( 50 ) performs its seal function, only when the first multi-disk clutch ( 3 ) is closed.

15. The torque transfer device recited in claim 1 , wherein the seal device ( 50 ) is stamped or formed from sheet metal.

16. The torque transfer device recited in claim 1 , wherein the seal device ( 140 ) is made from plastic.

17. The torque transfer device recited in claim 16 , wherein the seal device ( 140 ) comprises at least one snap hook ( 145 , 147 , 148 ), engaging into an opening ( 146 ) of the carrier device ( 30 ).

18. The torque transfer device recited in claim 1 , wherein the pressure ring ( 36 ) comprises a centering means.

19. The torque transfer device recited in claim 1 , wherein the pressure ring ( 36 ) comprises lugs with side surfaces, in particular on the radial inside, which serve the purpose of centering the pressure ring.

20. The torque transfer device recited in claim 18 , wherein the pressure ring ( 36 ) comprises teeth ( 102 ) with flanks, in particular on the radial outside, which serve the purpose of centering the pressure ring ( 36 ).

21. The torque transfer device recited in claim 18 , wherein the pressure ring ( 36 ) comprises a bent over rim area ( 91 ) radially on the outside.

22. The torque transfer device recited in claim 1 , wherein the first multi-disk clutch is an outer multi-disk clutch and the second multi-disk clutch is an inner multi-disk clutch, wherein the outer disk carrier ( 24 ) of the inner multi disk clutch ( 4 ) is assembled in two components from a teething body ( 161 ), which is connected torque proof through a teething with the outer disks of the inner multi-disk clutch, and a connection component ( 30 ), through which the outer disk carrier ( 24 ) of the inner multi-disk clutch ( 4 ) is connected torque proof with the outer disk carrier ( 14 ) of the outer multi disk clutch ( 3 ).

23. The torque transfer device recited in claim 22 , wherein the teething body ( 161 ) is formed from a sheet metal part through roll forming.

24. The torque transfer device recited in claim 22 , wherein the outer disk carrier ( 14 ) of the outer multi disk clutch ( 3 ) is connected with the connection part ( 30 ) through an insertion connection.

25. The torque transfer device recited in claim 24 , wherein the outer disk carrier ( 14 ) of the outer multi disk clutch ( 3 ) has cutouts ( 188 , 190 ), into which bars ( 185 , 186 ) engage, which are provided at the connection component ( 30 ).

26. The torque transfer device recited in claim 25 , wherein the width of the bars ( 185 , 186 ) is selected, so that stamping the bars out from the radial outside to the radial inside, or vice versa is possible in the section of the tooth crests ( 196 , 197 ) of the teething.

27. The torque transfer device recited in claim 22 , wherein the teething body ( 161 ) is provided conical at its crest circle towards the open ends.

28. The torque transfer device recited in claim 25 , wherein the bars ( 185 , 186 ) extend in radial direction.

29. The torque transfer device recited in claim 28 , wherein the bars ( 185 , 186 ) extend in circumferential direction respectively between two bar windows ( 181 - 183 ), which are provided in the connection component ( 30 ).

30. The torque transfer device recited in claim 22 , wherein the connection component ( 30 ) has finger windows ( 171 - 173 ), allowing fingers to reach through, extending from the pressure ring ( 36 ).

31. The torque transfer device recited in claim 30 , wherein the connection component ( 30 ) has half as many finger windows ( 171 - 173 ), as teeth ( 169 , 170 ).

32. The torque transfer device recited in claim 30 , wherein the connection component ( 30 ) has as many finger windows ( 171 - 173 ), as bar windows ( 181 - 183 ).

33. The torque transfer device recited in claim 30 , wherein the finger windows ( 171 - 173 ) are disposed radially within and overlapping in circumferential direction with the bar windows ( 181 - 183 ).

34. The torque transfer device recited in claim 30 , wherein the finger windows ( 171 - 173 ) and/or the bar windows ( 181 - 183 ) are disposed evenly distributed in circumferential direction.

35. The torque transfer device recited in claim 22 , wherein the connection component ( 30 ) reaches around the outer disk carrier ( 14 ) of the outer multi-disk clutch ( 3 ), and/or supports outwardly located tooth crests ( 196 , 197 ) of the outer disk carrier ( 14 ) of the outer multi disk clutch ( 3 ) in the radial direction.

36. The torque transfer device recited in claim 22 , wherein the connection component ( 30 ) has an inner teething ( 168 ), which is in engagement with an outer teething ( 164 ) of the teething body ( 161 ) of the outer disk carrier ( 24 ) of the inner multi disk clutch ( 4 ).

37. The torque transfer device recited in claim 26 , wherein the teething body ( 161 ) has protruding grooves ( 201 , 202 ), forming an axial stop for the connection component ( 30 ).

38. The torque transfer device recited in claim 37 , wherein the protruding grooves ( 201 , 202 ) are disposed symmetrical with reference to the middle of the bars ( 185 , 186 ) of the connection component ( 30 ).

39. The torque transfer device recited in claim 37 , wherein each second tooth of the teething body ( 161 ) of the outer disk carrier ( 24 ) of the inner multi-disk clutch ( 4 ) has a protruding groove ( 201 , 202 ).

40. The torque transfer device recited in claim 22 , wherein the outer disk carrier ( 14 ) of the outer multi disk clutch ( 3 ) has a teething with the same number of teeth, as the teething body ( 161 ) of the outer disk carrier ( 24 ) of the inner multi-disk clutch ( 4 ).

41. The torque transfer device recited in claim 22 , wherein the outer disk carrier ( 14 ) of the outer multi-disk clutch ( 3 ) comprises a teething body ( 160 ), which is connected with the connection component ( 30 ) through an insertion teething.

42. The torque transfer device recited in claim 41 , wherein tooth windows ( 215 , 216 ) are provided in the connection component ( 30 ).

43. The torque transfer device recited in claim 42 , wherein the tooth windows ( 215 , 216 ) each have at least one radially inward extending outer tooth ( 221 ).

44. The torque transfer device recited in claim 42 , wherein the tooth windows ( 215 , 216 ) each comprise at least one radially outward extending inner tooth ( 222 , 223 ).

45. The torque transfer device recited in claim 43 , wherein the assembly of the inner teeth ( 222 , 223 ) and/or of the outer teeth ( 221 ) is selected, having a sufficient cross section for undergoing a stamping operation in a punch die.

46. The torque transfer device recited in claim 44 , wherein the outer disk carrier ( 14 ) of the outer multi-disk clutch ( 3 ) is supported in radial direction at the outer teeth ( 221 ), in particular at the flanks of the outer teeth ( 221 ) of the connection component ( 30 ).

47. The torque transfer device recited in claim 41 , wherein the teething body ( 160 ) of the outer disk carrier ( 14 ) of the outer multi-disk clutch ( 3 ) has protruding grooves ( 225 - 228 ), forming an axial stop for the connection component ( 30 ).

48. The torque transfer device recited in claim 47 , wherein the protruding grooves ( 225 - 228 ) are disposed symmetrical with reference to the middle of the tooth windows ( 215 , 216 ) of the connection component ( 30 ).

49. The torque transfer device recited in claim 47 , wherein every second tooth of the teething body ( 160 ) of the outer disk carrier ( 14 ) of the outer multi-disk clutch ( 3 ) has an outwardly formed groove ( 225 - 228 ).

50. The torque transfer device recited in claim 41 , wherein the teething body ( 160 ) of the outer disk carrier ( 14 ) of the outer multi-disk clutch ( 3 ) comprises the same number of teeth as the teething body ( 161 ) of the outer disk carrier ( 24 ) of the inner multi-disk clutch ( 4 ).

51. The torque transfer device recited in claim 41 , wherein the connection component ( 30 ) comprises finger windows ( 211 - 213 ), allowing fingers to reach through, extending from the pressure ring.

52. The torque transfer device recited in claim 51 , wherein the connection component ( 30 ) has half as many finger windows ( 211 - 213 ) and/or tooth windows ( 215 , 216 ) as it has teeth.

53. The torque transfer device according to claim 51 , wherein the finger windows ( 211 - 213 ) are disposed radially within the tooth windows ( 215 , 216 ).

54. The torque transfer device recited in claim 51 , wherein the finger windows ( 211 - 213 ) and/or the tooth windows ( 215 , 216 ) are disposed evenly distributed in circumferential direction.

55. The torque transfer device recited in claim 51 , wherein the finger windows ( 211 - 213 ) and/or the tooth windows ( 215 , 216 ) are disposed in the middle between the protruding grooves ( 225 - 228 ).

56. The torque transfer device recited in claim 51 , wherein the finger windows ( 211 - 213 ) and/or the tooth windows ( 215 , 216 ) extend in particular in circumferential direction over three teeth.

57. The torque transfer device recited in claim 41 , wherein the number of teeth of the disk teething is divisible by 2 and by 3.

58. A drive train of a motor vehicle with a torque transfer device for torque transfer between a drive unit and a transmission, with at least one multi-disk clutch ( 3 , 4 ), comprising an outer multi-disk clutch having at least one disk packet, comprising outer disks, connected non-rotatably with an outer disk carrier, and inner disks, connected non-rotatably with an inner disk carrier, and with at least one operating lever device for operating the multi-disk clutch, wherein a pressure transfer device ( 36 ) extends between the disk packet ( 11 ) and the operating lever device ( 34 ) through at least one pass-through opening ( 38 ), which is cut out in a carrier device ( 30 ), wherein a seal device ( 50 , 140 ) is operatively connected to a second outer disk carrier of an inner multi-disk clutch, wherein said seal device is disposed between the inner disk carrier ( 17 ) and the pass-through opening ( 38 ).

59. The drive train for torque transfer between a drive unit, recited in claim 1 , wherein the second outer disk carrier ( 24 ) of the inner multi disk clutch ( 4 ) is assembled in two components from a teething body ( 161 ), which is connected torque proof through a teething with the outer disks of the inner multi-disk clutch, and a connection component ( 30 ), through which the second outer disk carrier ( 24 ) of the inner multi-disk clutch ( 4 ) is connected torque proof with the outer disk carrier ( 14 ) of the outer multi disk clutch ( 3 ).