Two-stroke engine having a ported piston to facilitate airflow therethrough
US8714122B2 · kind B2 · utility
2Cited by
10References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2010 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Dec 27, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B2075/025
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a two-stroke engine (1) according to the present invention, a piston (6) has a communication passage (28) opened to a crank chamber (10). An air intake port (30) is provided on an inner surface (2a) for causing air to flow into the communication passage (28). After a scavenging port (22) is closed by an outer surface (6a) of the piston (6) moving from the bottom dead center to the top dead center, the communication passage (28) is opened in the outer surface (6a) of the piston so as to communicate with the air intake port (30) and the scavenging port (22).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.