Torque transfer device

Patent metadata

Field	Value
Publication number	US-10024410-B2
Application number	US-201415039687-A
Country	US
Kind code	B2
Filing date	Nov 28, 2014
Priority date	Dec 2, 2013
Publication date	Jul 17, 2018
Grant date	Jul 17, 2018

Abstract

A torque transfer device mountable rotatably around an axis of rotation to transfer a drive torque between an input side and an output side, having a converter wheel of a hydrodynamic converter and a centrifugal force pendulum, which has a pendulum flange extending in an at least partially radial direction and at least one pendulum mass, where the pendulum mass is positioned on a long side of the pendulum flange and is coupled with the pendulum flange by means of a sliding block guide. A first coupling device is designed to provide a connection for transferring torque between the pendulum flange and the converter wheel, where the first coupling device is connected to the pendulum flange at least partially radially to the outside of the pendulum mass to provide an exchange of torque between the converter wheel and the pendulum flange radially to the outside of the pendulum mass.

First claim

The invention claimed is:

1. A torque transfer device mounted rotatably around an axis of rotation to transfer a drive torque between an input side and an output side, the torque transfer device comprising:
a converter wheel of a hydrodynamic converter;
a centrifugal force pendulum having a pendulum flange extending in an at least partially radial direction, and at least one pendulum mass;
the pendulum mass being situated on a radially outer side of the pendulum flange with respect to the axis of rotation and being coupled with the pendulum flange via a sliding block guide; and
at least one first coupling device providing a connection for transferring torque between the pendulum flange and the converter wheel, the first coupling device being connected to the pendulum flange at least partially radially outside of the pendulum mass with respect to the axis of rotation, and providing an exchange of torque between the converter wheel and the pendulum flange.

2. The torque transfer device as recited in claim 1 further comprising a second coupling device and a damper device, the damper device designed to damp torsional vibrations in the drive torque being transferred, wherein the second coupling device is positioned on the pendulum flange radially inside of the pendulum mass with respect to the axis of rotation, wherein the second coupling device is designed to provide a connection between the damper device and the pendulum flange to exchange torque between the damper device and the pendulum flange.

3. The torque transfer device as recited in claim 2 wherein the second coupling device is situated radially between the pendulum mass and a radially inner end of the pendulum flange.

4. The torque transfer device as recited in claim 2 wherein the pendulum flange is torsionally connected to a damper input side of the damper device via the second coupling device.

5. The torque transfer device as recited in claim 2 wherein the damper device has a retainer and a spring element, wherein the spring element is oriented at least partially in a circumferential direction, and is positioned in the retainer, wherein a damper output side of the damper device has a plate, wherein the retainer has a first and a second bowl-shaped retainer element, wherein the plate is positioned axially between the first and second retainer elements, wherein the second coupling device is formed at least partially the first retainer elements and as part of the pendulum flange.

6. The torque transfer device as recited in claim 5 further comprising a lockup clutch, wherein the lockup clutch forms the second retainer element.

7. The torque transfer device as recited in claim 2 wherein a damper output side of the damper device is torsionally connected to the output side, or that the damper output side of the damper device is connected to the output side and torsionally connected through the second coupling device to the pendulum flange.

8. The torque transfer device as recited in claim 1 wherein the converter wheel is designed as a turbine wheel, wherein the converter includes an impeller positioned axially opposite the turbine wheel, the impeller being coupled with the input side, the turbine wheel being connected non-rotatingly to the centrifugal force pendulum via the first coupling device.

9. The torque transfer device as recited in claim 8 further comprising a lockup clutch, the lockup clutch designed to bridge the converter in order to reduce an inequality of rotational speed between the turbine wheel and the impeller, the lockup clutch positioned radially outside on the turbine wheel with respect to the axis of rotation and designed to connect the pendulum flange torsionally to the turbine wheel through the first coupling device.

10. The torque transfer device as recited in claim 8 further comprising a lockup clutch, the centrifugal force pendulum positioned axially between the lockup clutch and the turbine wheel, wherein the lockup clutch is connected to the pendulum flange via a third coupling device, wherein the first coupling device is connected at least partially radially to the pendulum flange on the outside of the pendulum mass with respect to the axis of rotation, and is designed to provide an exchange of torque between the pendulum flange and the lockup clutch.

11. The torque transfer device as recited in claim 10 wherein the lockup clutch is designed to bridge the converter in order to reduce an inequality of rotational speed between the turbine wheel and the impeller.

12. The torque transfer device as recited in claim 1 wherein the first coupling device is positioned radially outside of the converter wheel with respect to the axis of rotation.

13. The torque transfer device as recited in claim 1 wherein the first coupling device is positioned radially inside on a converter flange with respect to the axis of rotation.

14. The torque transfer device as recited in claim 1 wherein the first coupling device includes a coupling bridge and a connection area, wherein the connection area is positioned on the pendulum flange radially to the outside of the pendulum mass with respect to the axis of rotation, wherein the coupling bridge is torsionally coupled with the connection area in such a way that the coupling bridge is movable axially relative to the pendulum flange.

15. The torque transfer device as recited in claim 1 wherein the first coupling device is aligned with an outermost diameter of the converter wheel.

16. The torque transfer device as recited in claim 1 wherein the first coupling device is positioned radially inside of the converter wheel with respect to the axis of rotation.

Assignees

• Schaeffler Technologies Ag

Inventors

• Dinger Christian
• Hoffmann Jan
• Maienschein Stephan

Classifications

• F16D13/40

  in which the or each axially-movable member is pressed exclusively against an axially-located member · CPC title

• F16H45/02 Primary

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

• F16F15/14

  using masses freely rotating with the system, {i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers (compensation of inertia forces F16F15/22; weights for balancing rotating bodies F16F15/32)} · CPC title

• F16F15/145

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

• F16H2045/0263

  the damper comprising a pendulum · CPC title