Ceramic precombustion chamber for internal combustion engine
US4834042A · kind A · utility
12Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 31, 1988 |
| Grant date | May 30, 1989 |
| Priority date | — |
| Expiry date | May 31, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A ceramic precombustion chamber for an internal combustion engine such as a diesel engine consists of a metal ring and a ceramic body fitted in the metal ring by shrinkage fit. The ceramic body has a through-aperture for an injection nozzle and a combustion gas injection aperture. A shrinking allowance at a lower portion of the ceramic body with the metal ring is smaller than that an upper portion of the ceramic body with the metal ring, thereby decreasing surface pressures at the lower portion of the ceramic body to prevent cracks which would occur in the lower portion caused by surface pressures resulting from the shrinkage fit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.