Camshaft phaser including rotor connector

Patent metadata

Field	Value
Publication number	US-10876560-B2
Application number	US-201916385401-A
Country	US
Kind code	B2
Filing date	Apr 16, 2019
Priority date	Apr 16, 2019
Publication date	Dec 29, 2020
Grant date	Dec 29, 2020

Abstract

A camshaft phaser includes a stator, a rotor rotatable with respect to the stator, and a connector configured for being nonrotatably fixed to the rotor. The connector is configured for being nonrotatably connected to an outer circumferential surface of a camshaft. A method of constructing a camshaft phaser for an internal combustion engine includes providing a stator and a rotor rotatable with respect to the stator; and providing a connector configured for nonrotatably fixing to the rotor, the connector being configured for being nonrotatably connected to an outer circumferential surface of a camshaft.

First claim

What is claimed is:

1. A camshaft phaser for an internal combustion engine comprising:
a stator;
a rotor rotatable with respect to the stator, the rotor including a recess extending axially from a radially extending surface of the rotor; and
a connector including an annular base and at least one fixing segment protruding radially outward from the annular base; and,
the connector configured for being nonrotatably fixed in the recess, and the connector being configured for being nonrotatably connected to an outer circumferential surface of a camshaft.

2. The camshaft phaser as recited in claim 1 wherein the recess includes at least one slot, the at least one fixing segment being configured for being fixed in the at least one slot.

3. The camshaft phaser as recited in claim 2 wherein the at least one fixing segment is a plurality of fixing segments and the at least one slot is a plurality of slots, each of the fixing segments being configured for being fixed in a respective one of the plurality of slots.

4. The camshaft phaser as recited in claim 1 wherein the connector is configured for being nonrotatably fixed to the rotor via a press-fit interference.

5. The camshaft phaser as recited in claim 4 wherein the connector is configured for being nonrotatably connected to the outer circumferential surface of the camshaft via a press-fit interference.

6. The camshaft phaser as recited in claim 1 wherein an inner diameter of the connector is greater than an inner diameter of the rotor.

7. A camshaft phaser for an internal combustion engine comprising:
a stator;
a first rotor rotatable with respect to the stator; and
a connector configured for being nonrotatably fixed to the first rotor, the connector being configured for being nonrotatably connected to an outer circumferential surface of a first camshaft; and,
a second rotor configured for nonrotatably connecting to a second camshaft, the second rotor being axially offset from the first rotor and being rotatable with respect to the stator.

8. The camshaft phaser as recited in claim 7 further comprising a second connector configured for being nonrotatably fixed to the second rotor, the second connector being configured for being nonrotatably connected to an outer circumferential surface of the second camshaft.

9. A method of constructing a camshaft phaser for an internal combustion engine comprising:
providing a stator and a rotor rotatable with respect to the stator;
providing a connector configured for nonrotatably fixing to the rotor, the connector including an annular base and at least one fixing segment protruding radially outward from the annular base, the connector being configured for being nonrotatably connected to an outer circumferential surface of a camshaft; and,
fixing a recess arranged within the rotor to the connector, the recess extending axially from a radially extending surface of the rotor.

10. The method as recited in claim 9 wherein the recess includes at least one slot, and the nonrotatably fixing of the rotor to the connector including fixing the at least one fixing segment in the at least one slot.

11. The method as recited in claim 9 wherein the nonrotatably fixing of the rotor to the connector includes fixing the rotor to the connector via a press-fit interference.

12. The method as recited in claim 9 further comprising nonrotatably connecting the connector to the outer circumferential surface of the camshaft via a press-fit interference.

Assignees

• Schaeffler Technologies Ag

Inventors

• Camilo Alexandre
• De Oliveira Ghiraldi Renato

Classifications

• F16B7/00

  Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections ({F16B11/008, F16B17/00 take precedence;} umbrella frames A45B25/02; welding or soldering of connections B23K; vehicle connections in general B60D; railway couplings B61G; bicycle frames B62K; couplings for transmitting rotation F16D; couplings for tubes conveying fluids F16L) · CPC title

• F01L2001/34493

  Dual independent phasing system [DIPS] · CPC title

• F01L1/3442 Primary

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

• F16D1/10

  Quick-acting couplings in which the parts are connected by simply bringing them together axially · CPC title

• F16D1/068

  involving gluing, welding or the like · CPC title