Cylinder head construction
US4201175A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 1978 |
| Grant date | May 6, 1980 |
| Priority date | — |
| Expiry date | Sep 6, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Cylinder head construction defining a hemispheric combustion chamber and including a guide wall facing an intake port to impart swirl to an incoming air-fuel mixture and permit use of a lean air-fuel mixture. The position of the guide wall relative to the cylinder center and relative disposition of the guide wall and a spark plug are made such that although the guide wall is effective in imparting swirl, a flame front may be efficiently propagated to all parts of the combustion chamber subsequent to ignition of the air-fuel mixture therein, whereby provision of the guide wall does not result in increased emission of hydrocarbon compounds in exhaust gas or formation of carbon deposits in the combustion chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.