Cylinder head gasket
US6705618B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 26, 2001 |
| Grant date | Mar 16, 2004 |
| Priority date | — |
| Expiry date | Sep 26, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J2015/0875
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A cylinder head gasket includes a pair of first and second gasket substrates. The gasket substrates are each formed with a first and a second projection which project in opposite directions, with a clearance therebetween. According to a first aspect of the invention, each projection undergoes a plastic deformation toward the clearance defined between them when the gasket substrates are held sandwiched between a cylinder head and a cylinder block, each projection undergoing a magnitude of plastic deformation which is greater or lesser in accordance with the magnitude of a surface pressure therebetween. According to a second aspect of the invention, each projection is formed with a radially central part which projects toward the radially central part of the other projection and which is in close contact with each other continuously in the circumferential direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.