IP Library Granted Patent US 7,296,667
Granted Patent B2
US 7,296,667 · App. 11/075,336 · Granted Nov 20, 2007

Torque converter with a rotary oscillation damper

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Quick Facts
Patent No.
US 7,296,667
App. No.
11/075,336
Granted
Nov 20, 2007
Kind
B2
Abstract

A torque converter with a rotary oscillation damper has two or more rotary damper components that are rotatable in relation to each other. A friction-reducing component is arranged between the rotary damper components.

Claims (12)

1. A torque converter having a housing and a rotary oscillation damper, comprising at least two rotary damper components that are rotatable in relation to each other, and a friction-reducing component interposed between the rotary damper components, wherein the rotary oscillation damper is contained within an interior of the converter housing in contact with oil flowing therein and the at least two rotary components include a first input part of the damper and a turbine hub of the torque converter that rotate synchronously together.

2. The torque converter of claim 1 , wherein the damper comprises a turbine damper.

3. The torque converter of claim 1 , wherein the damper comprises a torsional damper.

4. The torque converter of claim 1 , wherein the friction-reducing element comprises a gliding bearing.

5. The torque converter of claim 4 , wherein the gliding bearing comprises a Teflon surface.

6. The torque converter of claim 1 , wherein the friction-reducing element comprises a roller bearing.

7. The torque converter of claim 6 , wherein the roller bearing comprises an axial needle bearing.

8. The torque converter of claim 6 , wherein the roller bearing comprises a grooved ball bearing.

9. The torque converter of claim 1 , wherein the at least two rotary damper components comprise the first input part of the damper and the turbine hub of the torque converter, the friction-reducing component being disposed between a second input part of the damper and an output part of the damper and between the output part and the damper.

10. The torque converter of claim 1 , wherein the at least two rotary damper components comprise a second input part of the damper that includes a tongue that extends through an opening formed through an output part of the damper and bears against the turbine hub.

11. The torque converter of claim 10 , wherein the turbine hub and the second input part rotate synchronously together and the first input part is maintained spaced from the output part and second input part is maintained spaced from the output part.

12. A torque converter with a rotary oscillation damper, comprising at least two rotary damper components that are rotatable in relation to each other, and a friction-reducing component interposed between the rotary damper components, wherein the at least two rotary damper components comprise a first component having first component parts rotating synchronously together, and a second rotary damper component that is arranged between, but not rotating synchronously with, said first component parts, and further comprising a spacer element arranged to hold a distance between said first component parts, so that at least in an area next to the spacer element said first component parts have substantially no contact with the second rotary damper component, wherein the first component parts comprise an input part of the damper and a turbine hub of the torque converter.

Assignments (6)
CORRECTIVE ASSIGNMENT TO CORRECT THE PROPERTY NUMBERS PREVIOUSLY RECORDED ON REEL 037732 FRAME 0347. ASSIGNOR(S) HEREBY CONFIRMS THE APP. NO. 14/553248 SHOULD BE APP. NO. 14/553258. Recorded Oct 11, 2016
From: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 040404/0530 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 5, 2016
From: LUK VERMÖGENSVERWALTUNGS GESELLSCHAFT MBH
To: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
Reel/Frame 037731/0748 →
CHANGE OF NAME Recorded Feb 5, 2016
From: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 037731/0834 →
MERGER AND CHANGE OF NAME Recorded Feb 5, 2016
From: SCHAEFFLER TECHNOLOGIES AG & CO. KG; SCHAEFFLER VERWALTUNGS 5 GMBH
To: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
Reel/Frame 037732/0228 →
CHANGE OF NAME Recorded Feb 5, 2016
From: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 037732/0347 →
MERGER Recorded Feb 3, 2016
From: LUK LAMELLEN UND KUPPLUNGSBAU BETEILIGUNGS KG
To: LUK VERMÖGENSVERWALTUNGS GESELLSCHAFT MBH
Reel/Frame 037740/0589 →