Axially compact camshaft phaser
US8397687B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 26, 2010 |
| Grant date | Mar 19, 2013 |
| Priority date | — |
| Expiry date | Sep 29, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L1/3442
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A camshaft phaser is provided for varying the phase relationship between a crankshaft and a camshaft in an internal combustion engine. The camshaft phaser includes a stator having a plurality of lobes. A rotor is disposed within the stator and includes a plurality of vanes interspersed with the stator lobes to define alternating advance and retard chambers. A bushing adaptor of the camshaft phaser is disposable axially within a pocket of the camshaft and is disposed axially within the rotor. The bushing adaptor defines at least in part a supply passage for communicating pressurized oil from the internal combustion engine to a control valve, an advance passage for selectively communicating pressurized oil from the control valve to the advance chambers, and a retard passage for selectively communicating pressurized oil from the control valve to the retard chambers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.