Free piston stirling machine having a controllably switchable work transmitting linkage between displacer and piston
US5502968A · kind A · utility
24Cited by
14References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 6, 1994 |
| Grant date | Apr 2, 1996 |
| Priority date | — |
| Expiry date | Dec 6, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2309/001
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Free piston Stirling coolers and engines are improved by a variable power transmitting linkage connecting the displacer to the piston and coupling more power from the displacer to the piston while piston displacement exceeds a selected limit than coupled while piston displacement is less than the selected limit. Adjustment of the position of the limit is used to control stroke amplitude, power output or thermal pumping rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.