MLS gasket with bore edge stopper bead
US6962345B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2003 |
| Grant date | Nov 8, 2005 |
| Priority date | — |
| Expiry date | Mar 11, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J2015/0837
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gasket includes an intermediate layer having resilient sealing beads flanked by stopper beads. The three-layer gasket, particularly designed for heavy duty racing engines, provides a relatively robust cross-section in web-areas between cylinder bore apertures. A thin bottom layer includes wrap-around flanged portions extending about cylinder bore edges of the intermediate layer to partially overlap cylinder bore aperture areas of that layer. The flanged portions include a plurality of waves to increase forces to generate the seal. A thin top layer overlies the intermediate layer, as well as the overlapping portions of the bottom layer. In one described embodiment, the overlapping portions are limited to cylinder bore edges between cylinder bores. As a between-engine-overhaul indication of engine health, the top gasket layer is adapted via plastic deformation to form a permanent indentation in an aluminum cylinder head to signal excessive engine operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.