Dual spark-plug ignition internal combustion engine with improved combustion chamber wall
US4133331A · kind A · utility
8Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1977 |
| Grant date | Jan 9, 1979 |
| Priority date | — |
| Expiry date | Mar 10, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Two spark plugs are disposed in each combustion chamber of an internal combustion engine to ignite the air-fuel mixture mixed with a considerably large proportion of the exhaust gases. The wall surface of the combustion chamber is formed so that only one spark plug can not be excessively cooled down by the stream of the cool air-fuel mixture inducted through the intake port of the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.