IP Library Granted Patent US 8,490,766
Granted Patent B2
US 8,490,766 · App. 13/571,491 · Granted Jul 23, 2013

Hydrodynamic torque converter

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Quick Facts
Patent No.
US 8,490,766
App. No.
13/571,491
Granted
Jul 23, 2013
Kind
B2
Abstract

The hydrodynamic torque converter having a torque converter lockup clutch and a converter housing connected at the drive side, and a pump wheel non-rotatably connected thereto, as well as a turbine wheel non-rotatably connected at the output side to an output hub, and a torsional vibration damper actively arranged between the clutch output of the torque converter lockup clutch and the output hub, and including a centrifugal pendulum device arranged within the converter housing and having a pendulum flange with slightly swiveling pendulum masses thereupon, where the pendulum flange is arranged axially between the torsional vibration damper and the turbine wheel and is non-rotatably connected to a damper output part of the torsional vibration damper, and the damper output part and/or the pendulum flange are directly connectable via an interlocking connection to the drive hub.

Claims (49)

1. A hydrodynamic torque converter, comprising:

a torque converter lockup clutch including a drive side and a clutch output;

a converter housing connected at the drive side;

a pump wheel non-rotatably connected to the converter housing;

a turbine wheel with an output side; and,

a torsional vibration damper comprising:

a drive hub;

a damper output part; and,

a centrifugal pendulum device arranged within the converter housing and having a pendulum flange with slightly swiveling pendulum masses thereupon, wherein:

the turbine wheel is non-rotatably connected at the output side to the drive hub;

the torsional vibration damper is actively arranged between the clutch output and the drive hub;

the pendulum flange is arranged axially between the torsional vibration damper and the turbine wheel and is directly non-rotatably connected to the damper output part of the torsional vibration damper, and

the damper output part or the pendulum flange is directly non-rotatably connected to the drive hub.

2. The hydrodynamic torque as recited in claim 1 , wherein the damper output part is non-rotatably connected to the drive hub by a keyed connection, which is designed as an interlock.

3. The hydrodynamic torque converter as recited in claim 1 , wherein the damper output part is non-rotatably connected to the drive hub by a keyed connection, which is designed as a press fit or weld.

4. The hydrodynamic torque converter as recited in claim 1 , wherein the turbine wheel is connected to the drive hub by means of a rivet element.

5. The hydrodynamic torque converter as recited in claim 1 , wherein the pendulum flange is riveted to the damper output part.

6. A hydrodynamic torque converter, comprising:

a torque converter lockup clutch including a drive side and a clutch output;

a converter housing connected at the drive side;

a pump wheel non-rotatably connected to the converter housing;

a turbine wheel with an output side; and,

a torsional vibration damper comprising:

a drive hub;

at least one energy storage element;

first and second disc parts engaged with the at least one energy storage element;

an intermediate damper part axially located between the first and second disc parts and engaged with the at least one energy storage element;

a damper output part including the second disc part and

a centrifugal pendulum device arranged within the converter housing and having a pendulum flange with slightly swiveling pendulum masses thereupon, wherein:

the turbine wheel is non-rotatably connected at the output side to the drive hub;

the torsional vibration damper is actively arranged between the clutch output and the drive hub;

the pendulum flange is arranged axially between the torsional vibration damper and the turbine wheel and is directly non-rotatably connected to the second disc part, and

the damper output part or the pendulum flange is directly non-rotatably connected to the drive hub.

7. A hydrodynamic torque converter, comprising:

a torque converter lockup clutch including a drive side and a clutch output;

a converter housing connected at the drive side;

a pump wheel non-rotatably connected to the converter housing;

a turbine wheel with an output side; and,

a torsional vibration damper including:

a drive hub;

at least one energy storage element;

first and second disc parts engaged with the at least one energy storage element;

an intermediate damper part axially located between the first and second disc parts and engaged with the at least one energy storage element;

a damper output part including the intermediate damper part or the second disc part; and

a centrifugal pendulum device arranged within the converter housing and having a pendulum flange with slightly swiveling pendulum masses thereupon, wherein:

the turbine wheel is non-rotatably connected at the output side to the drive hub;

the torsional vibration damper is actively arranged between the clutch output and the drive hub;

the pendulum flange is arranged axially between the torsional vibration damper and the turbine wheel and is directly non-rotatably connected to the damper output part of the torsional vibration damper, and

the pendulum flange is directly non-rotatably connected to the drive hub.

Assignments (4)
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 →
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 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 10, 2012
From: MAIENSCHEIN, STEPHAN; DROLL, PETER
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 028762/0995 →