Free piston engine
US8794198B2 · kind B2 · utility
1Cited by
8References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 17, 2010 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | Dec 17, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B75/002
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A free-piston engine has an engine cylinder and a single piston member. The single piston member has a double-ended piston that moves within the cylinder, and the piston member partitions the cylinder into two separate chambers, each of which are supplied with a compressible working fluid from one or more intake means. The piston moves over and past the intake means during each stroke such that the fluid is replenished within one chamber while the piston compresses the fluid held in the other chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.