Apex seal for rotary engines
US4100664A · kind A · utility
9Cited by
10References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 22, 1975 |
| Grant date | Jul 18, 1978 |
| Priority date | — |
| Expiry date | Sep 22, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49277
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An improved seal for a rotary engine to reduce leakage at the rotor apex under normal operating temperatures. Opposite edges of the seal have differing coefficients of thermal expansion so that as the seal heats up, thermal expansion forces cancel the effect of non-uniform temperature across the seal to insure flush contact with the housing wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.