Cylinder head gasket with retaining ring and spring seal
US5505466A · kind A · utility
11Cited by
27References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1993 |
| Grant date | Apr 9, 1996 |
| Priority date | — |
| Expiry date | Apr 30, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02F11/002
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A multiple sealing system for an engine gasket utilizes a retaining ring and a spring energized seal disposed within an annular U-shaped flange adjacent a gasket body. The spring energized seal acts as a primary seal against combustion gases under all engine operating conditions. The retaining ring acts as a positive mechanical stop for the spring energized combustion seal, protects the spring energized combustion seal from thermally induced crushing, and acts as a secondary seal against combustion gases. The U-shaped flange positions and supports the seals relative to the gasket body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.