Loop-scavenged two-stroke internal combustion engines
US6196171A · kind A · utility
1Cited by
6References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 10, 1999 |
| Grant date | Mar 6, 2001 |
| Priority date | — |
| Expiry date | Feb 10, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B2075/025
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A loop-scavenged two-stroke internal combustion engines with an intake valve (7) engaging a seat (10) for fresh air intake, and an exhaust valve (8) engaging a seat (13) for combustion gas exhaust, is disclosed. The valves are arranged in such a way that the fresh air intake scavenges a substantial part of the burnt gases. In at least one of the valves, the valve surface (21) located downstream from the valve face (9) and the surface (23) of the downstream extension of the seat (10) are configured in such a way that they form a substantially isentropic diffuser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.