Device for transmitting torque

Patent metadata

Field	Value
Publication number	US-10281019-B2
Application number	US-201415039509-A
Country	US
Kind code	B2
Filing date	Nov 28, 2014
Priority date	Dec 2, 2013
Publication date	May 7, 2019
Grant date	May 7, 2019

Abstract

A device for transmitting torque between an input side and an output side includes a hydrodynamic converter having a pump wheel that is connected to the input side and a turbine wheel that is coupled with the pump wheel hydrodynamically by a fluid, as well as a spring damper for coupling the turbine wheel with the output side and a centrifugal pendulum that is joined with one of the other elements in a torque-locked connection. In this case, only one spring damper is disposed in the flow of torque between the input side and the output side.

First claim

The invention claimed is:

1. A device for transmission of torque between an input side and an output side, the device comprising:
a hydrodynamic converter having a pump wheel connected to the input side and a turbine wheel coupled hydrodynamically with the pump wheel via a fluid,
a spring damper for coupling the turbine wheel with the output side,
a centrifugal pendulum connected to the spring damper and including a pendulum mass movably attached to a pendulum flange,
the spring damper being a sole spring damper positioned in a flow of torque between the input side and the output side,
a first intermediate flange and a second intermediate flange configured for bracing the spring damper, wherein the first intermediate flange is arranged on a first axial side of the pendulum flange and the second intermediate flange is arranged on a second axial side of the pendulum flange, and
a controllable friction clutch is connected to a radial outer side of the turbine wheel and configured for rigidly coupling the pump wheel with the turbine wheel.

2. The device as recited in claim 1 wherein the centrifugal pendulum is rigidly connected to the output side.

3. The device as recited in claim 1 further including a housing to receive the turbine wheel, the spring damper, the centrifugal pendulum and the fluid.

4. The device as recited in claim 1 wherein the spring damper is positioned radially inside of the pendulum mass of the centrifugal pendulum.

5. The device as recited in claim 1 wherein the pendulum flange of the centrifugal pendulum and the spring damper are aligned with each other axially.

6. The device as recited in claim 1 , wherein the turbine wheel is braced radially on a radial inner side by a hub.

7. The device as recited in claim 1 , wherein the spring damper comprises a cylindrical coil spring.

8. The device as recited in claim 1 , wherein the first intermediate flange and the second intermediate flange are rigidly joined with each other.

9. The device as recited in claim 1 , wherein the pendulum mass comprises a first pendulum element and a second pendulum element positioned on different axial sides of the pendulum flange.

Assignees

• Schaeffler Technologies Ag

Inventors

• Dinger Christian
• Hoffmann Jan

Classifications

• F16H2045/0278

  comprising only two co-acting friction surfaces · CPC title

• F16H2045/0226

  comprising two or more vibration dampers · CPC title

• F16F15/145

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

• F16D13/40

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

• F16H2045/0263

  the damper comprising a pendulum · CPC title