Hydraulic control system for engine cam phasing
US8215274B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2008 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | May 11, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2001/34433
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A hydraulic control system to provide an oil or pressurized fluid supply to a variable cam phasing system in an engine is provided. The hydraulic control system includes a valve housing attachable to a front cover assembly of the engine; a first valve installed in the housing; and an inlet passage defined by the front cover assembly hydraulically communicating with the first valve in the housing to carry pressurized fluid from a fluid source to the first valve. A first and a second outlet passage defined by the housing hydraulically communicates with the first valve to allow the pressurized fluid to flow to the cam phasing system, thereby variably moving a camshaft assembly operatively connected to the cam phasing system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.