# US 2013/0199479 A1 · Rotor for a camshaft phaser, and camshaft phaser

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- Number: US 2013/0199479 A1
- Document ID: US20130199479A1
- Status: Published application
- Kind: A1
- Application number: 13/879,910
- Filed: 2011-08-22
- Published: 2013-08-08
- Earliest claimed: 2010-11-05
- Assignees: Schaeffer Technologies AG & Co. KG
- Inventors: Rainer Ottersbach; Juergen Weber
- Web page: https://patentgrep.com/patent/US20130199479A1

## CPC

- F01L 1/344: changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L 1/3442: {using hydraulic chambers with variable volume to transmit the rotating force}
- F01L 2001/34479: {Sealing of phaser devices}
- F01L 2303/00: Manufacturing of components used in valve arrangements
- F01L: CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES

## Abstract

A rotor for a camshaft phaser includes a hub part having an oil supply passage, at least one vane radially disposed on the hub part, as well as oil channels extending through the hub part and fluidically connected to the oil supply passage. The manufacture of the rotor is considerably simplified because the rotor is made up of a main body and at least one cover element arranged on an end face of the main body. The oil channels are axially closed by the cover element.

## Claims

### Claim at position 1

1-15. (canceled)

### Claim 16

A rotor for a camshaft phaser comprising:
a hub part having an oil supply passage and oil channels extending through the hub part and fluidly connected to the oil supply passage; and
at least one vane radially disposed on the hub part,
at least the hub part being defined by a main body and at least one cover element arranged on an end face of the main body, the oil channels being axially closed by the cover element.

### Claim 17 (depends on 16)

The rotor as recited in claim 16 wherein the main body and the cover element are formed from different materials.

### Claim 18 (depends on 16)

The rotor as recited in claim 16 wherein the at least one cover element includes two cover elements provided on the main body on two sides thereof.

### Claim 19 (depends on 18)

The rotor as recited in claim 18 wherein the cover elements are identical in design.

### Claim 20 (depends on 16)

The rotor as recited in claim 16 wherein the cover element is made of plastic.

### Claim 21 (depends on 20)

The rotor as recited in claim 20 wherein the cover element is injection-molded onto the main body.

### Claim 22 (depends on 20)

The rotor as recited in claim 20 wherein the cover element is a separate component attached to the main body.

### Claim 23 (depends on 16)

The rotor as recited in claim 16 wherein the main body is formed from a metal.

### Claim 24 (depends on 16)

The rotor as recited in claim 16 wherein the main body s a sintered body.

### Claim 25 (depends on 16)

The rotor as recited in claim 16 wherein the main body is provided with first recesses for the oil channels.

### Claim 26 (depends on 16)

The rotor as recited in claim 16 wherein the cover element is provided with second recesses for the oil channels.

### Claim 27 (depends on 26)

The rotor as recited in claim 26 wherein the second recesses are rectangular in cross section.

### Claim 28 (depends on 25)

The rotor as recited in claim 25 wherein the cover element is provided with second recesses for the oil channels.

### Claim 29 (depends on 25)

The rotor as recited in claim 25 wherein the first recesses are rectangular in cross section.

### Claim 30 (depends on 16)

The rotor as recited in claim 16 wherein the main body is provided with cavities.

### Claim 31 (depends on 16)

The rotor as recited in claim 16 wherein the main body has ribs extending from its end faces and forming axial supporting surfaces in the assembled state.

### Claim 32 (depends on 16)

The rotor as recited in claim 16 wherein both the hub part and the at least one vane are defined by the main body and the cover element.

### Claim 32 (depends on 16)

A camshaft phaser for adjusting the phase angle of a camshaft with respect to a crankshaft of an engine, the camshaft phaser comprising a rotor as recited in claim 16.