Engine exhaust port liner
US4069667A · kind A · utility
3Cited by
0References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 1976 |
| Grant date | Jan 24, 1978 |
| Priority date | — |
| Expiry date | Apr 16, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02F2001/4278
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An exhaust port liner for an internal combustion engine has an entrance opening at one side into which exhaust gases are directed by means of a cylindrical sleeve fixed relative to the exhaust valve seat. A portion of the poppet type exhaust valve extends through the sleeve and into the entrance opening. The liner is inserted into the exhaust port from the discharge end of the exhaust port. The liner is secured to the valve stem guide and is also supported near its discharge opening. The sleeve may be fixed to an insulating ring abutting the valve seat, or the sleeve may be threaded directly to the valve seat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.