Piston-centering system for a hot gas machine
US4188791A · kind A · utility
7Cited by
1References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 27, 1978 |
| Grant date | Feb 19, 1980 |
| Priority date | — |
| Expiry date | Feb 27, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2309/001
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A free piston hot gas reciprocating machine having, one piston surface which varies the volume of a working space, while its other surface bounds a buffer space of constant pressure, and a control mechanism formed by an auxiliary cylinder and an auxiliary piston which is movable therein. The control mechanism maintains a given central position of the free piston by instantaneously opening a connection between the buffer space and the auxiliary cylinder space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.