IP Library Granted Patent US 7,717,072
Granted Patent B2
US 7,717,072 · App. 12/136,832 · Granted May 18, 2010

Adjustment device for adjusting the relative rotational angle position of a camshaft in relation to a crankshaft of an internal combustion engine

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Quick Facts
Patent No.
US 7,717,072
App. No.
12/136,832
Granted
May 18, 2010
Kind
B2
Abstract

An adjustment device ( 1 ) for adjusting the relative rotational angle position of a camshaft ( 2 ) in relation to a crankshaft of an internal combustion engine is provided, with the device having an adjustment mechanism ( 3 ), which is embodied as a triple-shaft transmission and provided with an input part ( 4 ) fixed to the crankshaft, an output part fixed to the camshaft, and an adjusting shaft ( 7 ) connected to an adjusting motor shaft ( 5 ) of an adjusting motor ( 6 ). The motor ( 6 ) is provided as an electric motor and is arranged parallel to the camshaft ( 2 ). The motor generates an adjustment torque that is transmitted to the adjustment shaft ( 7 ) via a secondary drive ( 18 ) that has a belt drive, a chain drive, a cardan drive, or an additional spur gear stage.

Claims (5)

1. An adjustment device for adjusting the relative rotational angle position of a camshaft in relation to a crankshaft of an internal combustion engine, the device comprising:

an adjustment mechanism, which is provided as a triple-shaft transmission and which has an input part fixed to the crankshaft, an output part fixed to the camshaft, and an adjustment shaft connected to an adjustment motor shaft of an adjustment motor,

the adjustment motor comprises an electric motor and is arranged offset and parallel to the camshaft and

an adjustment torque generated by the motor is transmitted via a secondary drive to the adjustment shaft.

2. The device according to claim 1 , wherein the secondary drive comprises a belt drive, a chain drive, a cardan drive, or an additional spur gear stage.

Assignments (5)
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 →
CHANGE OF NAME Recorded Mar 9, 2012
From: SCHAEFFLER KG
To: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
Reel/Frame 027830/0135 →
CHANGE OF NAME Recorded Mar 9, 2012
From: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 027830/0143 →