Two-stroke engine
US4945867A · kind A · utility
11Cited by
8References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 1989 |
| Grant date | Aug 7, 1990 |
| Priority date | — |
| Expiry date | Aug 9, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A two-stroke engine including a pair of intake valves which are symmetrically arranged with respect to a symmetrical plane including the axis of the cylinder. A masking wall is provided for each intake valve to mask the valve opening between the valve seat and the peripheral portion of the intake valve, which is located on the exhaust valve side, for the entire time for which the intake valve is open. These masking walls are also symmetrically arranged with respect to the symmetrical plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.