Combustion chamber of an internal combustion engine
US4300499A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 1979 |
| Grant date | Nov 17, 1981 |
| Priority date | — |
| Expiry date | May 15, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An internal combustion engine comprising a first raised portion formed on the inner wall of the cylinder head, a second raised portion formed on the top face of the piston at a position opposite to the first raised portion with respect to the axis of the piston, and a third raised portion formed on the inner wall of the cylinder head above the second raised portion. A first flat squish area is formed between the flat peripheral top face of the piston and the flat bottom face of the first raised portion. A second spherical shell shaped squish area is formed between the spherical bottom wall of the third raised portion and the spherical rear face of the second raised portion. The second raised portion has a front face which comprises a gently inclined front face portion and a steeply inclined front face portion. The gently inclined front face portion is arranged beneath the exhaust valve, and the steeply inclined front face portion is arranged beneath the intake valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.