Timing phaser with offset spool valve
US7699031B2 · kind B2 · utility
5Cited by
12References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 2006 |
| Grant date | Apr 20, 2010 |
| Priority date | — |
| Expiry date | Sep 24, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2001/34426
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A variable cam timing phaser for an internal combustion engine with at least one camshaft includes a housing (144), a rotor (138), and a phaser control valve (168). The phase control valve is offset from a center axis of rotation through the camshaft of the phaser and may also be parallel to the center axis of rotation. The phaser control valve directs fluid flow to shift the relative angular position of the rotor relative to the housing. The phaser may be cam torque actuated, oil pressure actuated, or torsion assist.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.