Torque transmitting device

Patent metadata

Field	Value
Publication number	US-11499602-B2
Application number	US-201816603949-A
Country	US
Kind code	B2
Filing date	May 15, 2018
Priority date	May 31, 2017
Publication date	Nov 15, 2022
Grant date	Nov 15, 2022

Abstract

A torque transmitting device that can be rotatably mounted about an axis of rotation includes a series damper having a first damper unit, a second damper unit and a coupling unit. The first damper unit has a damper output side and the second damper unit has a damper input side. The coupling unit is arranged between the damper output side of the first damper unit and the damper input side of the second damper unit. The coupling unit has a first coupling part and a second coupling part, wherein the first coupling part and the second coupling part are arranged axially offset in relation to one another. The first coupling part connects the damper output side of the first damper unit to the second coupling part. The second coupling part connects the first coupling part to the damper input side of the second damper unit.

First claim

The invention claimed is:

1. A torque transmitting device, which can be rotatably mounted about an axis of rotation, comprising:
a series damper having a first damper unit, a second damper unit and a coupling unit,
wherein the first damper unit has a first damper element coupled to a damper output side and the second damper unit has a second damper element coupled to a damper input side,
wherein the coupling unit is arranged between the damper output side of the first damper unit and the damper input side of the second damper unit,
wherein the coupling unit has a first coupling part and a second coupling part,
wherein the first coupling part and the second coupling part are arranged axially offset in relation to one another,
wherein the first coupling part connects the damper output side of the first damper unit to the second coupling part,
wherein the second coupling part connects the first coupling part to the damper input side of the second damper unit,
wherein the coupling unit has a connecting hub arranged radially interior to the first and second damping elements,
wherein the connecting hub is arranged to be rotatably mounted on an output shaft, the output shaft extending radially interior to the first and second damper units,
wherein the connecting hub has an external tooth system on a circumference,
wherein the first coupling part has an internal tooth system and the second coupling part has a further internal tooth system,
wherein the internal tooth system of the first coupling part and the further internal tooth system of the second coupling part engage in the external tooth system.

2. The torque transmitting device as claimed in claim 1 , further comprising:
a bracing means,
wherein the bracing means is arranged between the first coupling part and a support element,
wherein the bracing means is designed to brace the first coupling part against the support element in at least one of an axial direction or in a circumferential direction.

3. The torque transmitting device as claimed in claim 1 , wherein the second damper unit includes a damper output side connected to the output shaft, the damper output side of the second damper unit being axially spaced from the connecting hub.

4. The torque transmitting device as claimed in claim 3 , wherein:
the output shaft includes a further external tooth system; and
the damper output side of the second damper unit includes a third internal tooth system,
the third internal tooth system engaging the further external tooth system.

5. The torque transmitting device as claimed in claim 1 , further comprising a speed-adaptive absorber having a flange, the flange being arranged axially between the first coupling part and the second coupling part.

6. The torque transmitting device as claimed in claim 5 , wherein the flange includes a third internal tooth system engaged with the external tooth system of the connecting hub.

7. The torque transmitting device as claimed in claim 5 , wherein the speed-adaptive absorber is arranged in axial overlap with at least one of the first damper unit or the second damper unit.

8. The torque transmitting device as claimed in claim 5 , wherein the speed-adaptive absorber is arranged radially between the first damper unit and the second damper unit.

9. The torque transmitting device as claimed in claim 1 , further comprising a turbine wheel connected torsionally to the coupling unit via a further coupling part, the further coupling part arranged axially between the first coupling part and the second coupling part.

10. The torque transmitting device as claimed in claim 9 , wherein the further coupling part includes a third internal tooth system engaged with the external tooth system of the connecting hub.

11. A torque transmitting device, which can be rotatably mounted about an axis of rotation, comprising:
a turbine wheel of a hydrodynamic converter and a series damper having a first damper unit, a second damper unit and a coupling unit, the coupling unit including a connecting hub arranged to be rotatably mounted on an output shaft,
wherein the output shaft extends radially interior to the first and second damper units,
wherein the coupling unit connects the first damper unit torsionally to the second damper unit,
wherein the turbine wheel is connected torsionally to the coupling unit, and
at least one speed-adaptive absorber,
wherein the speed-adaptive absorber has at least one absorber flange,
wherein the absorber flange is connected torsionally to the coupling unit or is formed integrally and in a materially unitary manner with the coupling unit,
wherein the absorber flange has an internal tooth system,
wherein the absorber flange is arranged axially between the first coupling part and the second coupling part,
wherein the internal tooth system engages in an external tooth system on a circumference of the connecting hub and connects the absorber flange torsionally to the connecting hub.

12. The torque transmitting device as claimed in claim 11 ,
wherein the speed-adaptive absorber is arranged radially between the first damper unit and the second damper unit.

13. The torque transmitting device as claimed in claim 11 ,
further comprising a bracing means designed to brace one of the first or second coupling parts against a support element in at least one of an axial direction or in a circumferential direction,
wherein the first damper unit has a first damper element having a first stiffness, and the second damper unit has a second damper element having a second stiffness,
wherein the bracing means has a third stiffness,
wherein the third stiffness is greater than at least one of the first stiffness or the second stiffness.

14. The torque transmitting device as claimed in claim 11 ,
wherein the coupling unit has a further coupling part,
wherein the further coupling part is connected on one side to the turbine wheel and on the other side is connected to the first coupling part and the second coupling part.

15. The torque transmitting device as claimed in claim 14 ,
having a further speed-adaptive absorber having a further absorber flange,
wherein the further coupling part extends substantially in an axial direction,
wherein the further absorber flange extends substantially in a radial direction and is connected radially on the inside or radially on the outside to the further coupling part by a connection that can be plug-fitted in the axial direction.

16. The torque transmitting device as claimed in claim 14 , wherein the further coupling part is connected by a positive connection that can be plug-fitted in an axial direction to at least one of the first coupling part or the second coupling part.

17. The torque transmitting device as claimed in claim 11 , wherein the at least one speed-adaptive absorber is a centrifugal pendulum.

18. The torque transmitting device as claimed in claim 11 , wherein the at least one speed-adaptive absorber is arranged in axial overlap with at least one of the first damper unit or the second damper unit.

19. The torque transmitting device as claimed in claim 14 , wherein the further coupling part is arranged axially between the first coupling part and the second coupling part.

20. The torque transmitting device as claimed in claim 14 , wherein the further coupling part includes a further internal tooth system, the further internal tooth system engaging the external tooth system of the connecting hub.

Assignees

• Schaeffler Technologies Ag

Inventors

• Güllük Toros
• Krause Thorsten
• Maienschein Stephan

Classifications

• F16F15/145 Primary

  Masses mounted with play with respect to driving means thus enabling free movement over a limited range · CPC title

• F16H45/02

  with mechanical clutches for bridging a fluid gearing of the hydrokinetic type (control of torque converter lock-up clutches F16H61/14) · CPC title

• F16H2045/0226

  comprising two or more vibration dampers · CPC title

• F16F2230/32

  Modular design · CPC title

• F16F15/1203 Primary

  characterised by manufacturing, e.g. assembling or testing procedures for the damper units (F16F15/13142 takes precedence) · CPC title