Controlling spark of an engine with adjustable intake valve timing
US7107965B2 · kind B2 · utility
5Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2006 |
| Grant date | Sep 19, 2006 |
| Priority date | — |
| Expiry date | Feb 2, 2026 |
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 spark timing of an engine wherein the injection timing of the engine is varied relative to a crankshaft position depending on engine operating conditions. According to the method, spark timing is varied as fuel injection timing varies for at least a portion of the engine operating range. The method can reduce fuel consumption, reduce transient fuel requirements, improve engine performance, and reduce CO emissions, at least under some conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.