Spark-ignited internal combustion engine and method of controlling the same
US8347834B2 · kind B2 · utility
1Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2008 |
| Grant date | Jan 8, 2013 |
| Priority date | — |
| Expiry date | Feb 3, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A spark-ignited internal combustion engine includes a variable compression ratio mechanism that changes a mechanical compression ratio and an actual compression ratio start timing-changing mechanism that changes a start timing at which actual compression starts. An actual compression ratio is changed according to the specific heat ratio of an intake gas that is supplied into a cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.