Variable compression ratio internal combustion engine
US7627417B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2006 |
| Grant date | Dec 1, 2009 |
| Priority date | — |
| Expiry date | Mar 20, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention provides a technology that enables to control response delay of the supercharger in a variable compression ratio internal combustion engine under acceleration. When the variable compression ratio internal combustion engine is under acceleration, the compression ratio of the internal combustion engine is set to a compression ratio lower than a basic compression ratio that is so determined in accordance with the running condition of the internal combustion engine to realize a predetermined heat efficiency while suppressing knocking, thereby raising the exhaust gas pressure and shortening the response time of the supercharger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.