Two-stroke-cycle uniflow spark-ignition engine
US4922865A · kind A · utility
2Cited by
10References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 16, 1989 |
| Grant date | May 8, 1990 |
| Priority date | — |
| Expiry date | Feb 16, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B2075/025
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A two-stroke-cycle uniflow spark-ignition engine generates power by pressurizing fluid introduced into a crank chamber within the crank chamber with a piston as it moves toward its bottom dead center, feeding the pressurized fluid to an annular scavenging chamber provided on the entire periphery of a cylinder where it accumulates, and discharging the fluid in the annular scavenging chamber into a cylinder chamber provided above the piston from a plurality of scavenging ports which are opened at the end of the descending stroke of the piston as a scavenging fluid in the form of a swirling uniflow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.