Engine equipped with adjustable valve timing mechanism
US7823550B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 24, 2008 |
| Grant date | Nov 2, 2010 |
| Priority date | — |
| Expiry date | Feb 4, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An engine equipped with an adjustable valve timing mechanism includes: an inlet valve opening term varying mechanism, which is included in the adjustable valve timing mechanism, varying an opening term of an inlet valve; and an inlet valve opening term controller controlling the inlet valve opening term varying mechanism according to a running state of the engine, the inlet valve opening term varying mechanism setting the opening term of the inlet valve to an first inlet term while the engine runs at relatively high load and relatively high speed, the inlet valve opening term varying mechanism also setting the opening term of the inlet valve to a second inlet term, termination timing of the inlet valve opening of which is retarded compared to the termination timing of the inlet valve opening in the first inlet term, while the engine runs at relatively low load and relatively low speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.