IP Library Granted Patent US 7,874,273
Granted Patent B2
US 7,874,273 · App. 12/047,387 · Granted Jan 25, 2011

Camshaft adjuster and method for setting a limiting position for a camshaft adjuster

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Quick Facts
Patent No.
US 7,874,273
App. No.
12/047,387
Granted
Jan 25, 2011
Kind
B2
Abstract

A camshaft adjuster ( 1 ), in which an adjustment of the camshaft adjuster is limited by a limiting element ( 11 ) is provided. The limiting element ( 11 ) is connected by an eccentric to the associated component ( 3 ), in particular, to an inner rotor. By use of an eccentric adjustment of the limiting element, the position of the limiting element in the peripheral direction can be adapted according to the production conditions within the tolerance range. In this way, the mounting of the camshaft adjuster is simplified and the achievable accuracy of the limiting position is improved.

Claims (17)

1. A camshaft adjuster comprising

a) two components that are movable relative to each other for changing an adjustment angle of the camshaft adjuster and

b) a limiting element, by which a limitation acting in an adjustment direction of the camshaft adjuster for the relative motion between the two components can be brought about, and

c) the limiting element has an eccentric.

2. The camshaft adjuster according to claim 1 , wherein the limiting element

is constructed with a stop,

is connected rigidly to one of the two components, and

for setting a limiting position the limiting element comes into contact on one side with a stop on a counter face of the other of the two components.

3. The camshaft adjuster according to claim 2 , wherein there is a caulked or stamped fixed connection between the limiting element and one of the two components.

4. The camshaft adjuster according to claim 1 , wherein the limiting element has a first longitudinal section and a second longitudinal section, wherein the second longitudinal section is constructed essentially rotationally symmetric with respect to a longitudinal axis thereof and the first longitudinal section is arranged on an axial end of the second longitudinal section and has an eccentricity with respect to the longitudinal axis of the second longitudinal section.

5. The camshaft adjuster according to claim 4 , wherein the second longitudinal section is held at least partially in one of the components that are movable relative to each other and the first longitudinal section engages in a connecting element formed on the other of the two components.

6. A method for setting a limiting position between two components that are movable relative to each other for changing an adjustment angle of a camshaft adjuster, comprising:

a) setting a desired limiting position by an adjustment aid,

b) connecting a limiting element, which has an eccentric, to a component, and adjusting the eccentric until the limiting element is located at a predefined distance from a counter face of the other component or comes into contact with the counter face.

7. The method according to claim 6 , wherein subsequent to a rotation of the limiting element, eliminating a degree of freedom for rotation of the limiting element.

8. The method according to claim 6 , wherein the adjustment aid is a stepped pin, which is introduced into a recess for a locking element.

9. The method according to claim 8 , further comprising setting a play between the limiting element and the counter face or between the locking element and the recess by a diameter of the stepped pin.

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 →
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 12, 2012
From: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 027843/0269 →
CHANGE OF NAME Recorded Sep 28, 2010
From: SCHAEFFLER KG
To: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
Reel/Frame 025052/0582 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 13, 2008
From: HERTRICH, STEFFEN; SCHMITT, LOTHAR
To: SCHAEFFLER KG
Reel/Frame 020644/0322 →