Camshaft phaser having an external bias spring
US6732690B2 · kind B2 · utility
6Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2003 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | Apr 23, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2800/01
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A torque bias coil spring for a camshaft phaser disposed on the outside of a cover plate for the rotor chamber and connected between the stator and rotor for angularly biasing the rotor. A rotor extension, such as a sleeve for a locking pin mechanism or a target wheel unit, extends from the rotor chamber through an opening in the cover plate for engaging a first spring tang. The second tang of the spring is engaged by a phaser binder bolt. The spring thus is able to follow the rotary motion of the rotor within the rotor chamber and to bias the rotor toward a predetermined rotational extreme.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.