Internal combustion engine with plural spark plugs for each combustion chamber and exhaust recirculation circuit
US4091615A · kind A · utility
6Cited by
10References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 1976 |
| Grant date | May 30, 1978 |
| Priority date | — |
| Expiry date | May 14, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Each combustion chamber of an internal combustion engine is equipped with at least two simultaneously working spark plugs which are arranged distant from each other and located out of a central region of the combustion chamber, and an exhaust recirculation circuit including a flow control valve is arranged to recirculate exhaust gas to a nearly stoichiometric air-fuel mixture to be fed to the engine at a high recirculation rate on the maximum of 12-40% by volume of the quantity of air drawn into the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.