Camshaft adjusting system

Patent metadata

Field	Value
Publication number	US-9534514-B2
Application number	US-201314430818-A
Country	US
Kind code	B2
Filing date	Sep 9, 2013
Priority date	Dec 18, 2012
Publication date	Jan 3, 2017
Grant date	Jan 3, 2017

Abstract

A camshaft adjusting system ( 1 ) having a camshaft adjuster ( 2 ) and a camshaft ( 3 ), wherein the camshaft adjuster ( 2 ) has a drive element ( 4 ) and an output element ( 5 ) which is disposed so as to be pivotably movable with respect to the drive element ( 4 ), wherein the output element ( 5 ) is non-rotatably connected to the camshaft ( 3 ), wherein a cover element ( 6 ) is fastened non-rotatably to the output element ( 5 ) and the hub ( 9 ) of the cover element ( 6 ) is disposed between the output element ( 5 ) and the camshaft ( 3 ), wherein the radial direction of extension of the cover element ( 6 ) is greater than the diameter of the contact surface ( 10 ) of the hub ( 9 ) of the cover element ( 6 ) to the camshaft ( 3 ).

First claim

What is claimed is:

1. A camshaft adjusting system comprising:
a camshaft adjuster;
a camshaft,
the camshaft adjuster including a driving element and an output element situated so as to be pivotably movable with respect to the driving element, the output element being rotatably fixedly connected to the camshaft; and
a cover element rotatably fixedly connected to the output element, the cover element having a hub situated between the output element and the camshaft, a radial direction of extension of the cover element being larger than a diameter of a contact surface of the hub to the camshaft.

2. The camshaft adjusting system as recited in claim 1 wherein the cover element is designed as a trigger wheel or as a spring cover.

3. The camshaft adjusting system as recited in claim 1 wherein the cover element covers a spring of the camshaft adjuster and is a trigger wheel.

4. The camshaft adjusting system as recited in claim 1 wherein the hub is provided with friction-increasing means.

5. The camshaft adjusting system as recited in claim 1 wherein the cover element is completely provided with a friction-increasing layer.

6. The camshaft adjusting system as recited in claim 1 further comprising a friction-increasing means, the friction-increasing means being a coating or a topographic structure of a surface of the cover element.

7. The camshaft adjusting system as recited in claim 1 wherein a contact surface of the cover element to the camshaft has a higher roughness than the rest of the cover element.

8. The camshaft adjusting system as recited in claim 1 wherein the hub ( 9 ) of the cover element is followed by a centering section centering the cover element with respect to the camshaft or to the output element.

9. A camshaft adjuster of a camshaft adjusting system, the camshaft adjuster comprising:
a driving element and an output element situated so as to be pivotably movable with respect to the driving element, the output element being rotatably fixedly connected to the camshaft; and
a cover element rotatably fixedly connected to the output element, the cover element having a hub situated between the output element and the camshaft, a radial direction of extension of the cover element being larger than a diameter of a contact surface of the hub to the camshaft.

10. A cover element of a camshaft adjusting system having a driving element and an output element situated so as to be pivotably movable with respect to the driving element, the output element being rotatably fixedly connected to the camshaft, the cover element being rotatably fixedly connected to the output element and comprising:
a hub situated between the output element and the camshaft, a radial direction of extension of the cover element being larger than a diameter of a contact surface of the hub to the camshaft.

Assignees

• Schaeffler Technologies Ag

Inventors

• Bayrakdar Ali
• Dietz Joachim
• Scheidig Gerhard

Classifications

• F01L2013/111

  Camshafts position or phase · CPC title

• F01L2001/34483

  Phaser return springs · CPC title

• F01L1/3442 Primary

  using hydraulic chambers with variable volume to transmit the rotating force · CPC title