Head for high performance internal combustion engine
US4686948A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1985 |
| Grant date | Aug 18, 1987 |
| Priority date | — |
| Expiry date | Jul 29, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An improvement in a cast head for a high performance internal combustion engine having a flat mounting surface for each of several in-line circular piston areas, a wedge type combustion chamber extending from the head mounting surface and defined by a flat quenching surface and a concave, contoured wedge-shaped cavity forming surface. This wedge-shaped cavity tapers outwardly from the quenching surface between a shallower portion adjacent the quenching surface to a deeper portion in which the valves are located. The cavity forming surface of the deeper area of the combustion chamber being provided with a general contour defined by two parallel intersecting, truncated cones generally concentric to the two valve openings in the wedge-shaped combustion chamber with a gradually contoured surface section between the cones at the deeper area of the combustion chamber and a velocity increasing protuberance in the combustion chamber at the shallower portion of the cavity which protuberance includes a curved edge portion of the flat quenching surface, which edge portion extends inwardly of the wedge shaped cavity toward a position between the two valve seats and a built up mass of cast mate…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.