Starting an engine with valves that may be deactivated
US7194993B2 · kind B2 · utility
17Cited by
156References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2004 |
| Grant date | Mar 27, 2007 |
| Priority date | — |
| Expiry date | Oct 29, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system and method to control engine valve timing to during the start of an internal combustion engine. Valves that may be deactivated are controlled in a manner to reduce hydrocarbon emissions during the start of an internal combustion engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.