Miniature cryogenic cooling system with split-phase dual compressor and phase-shifting device
US4479358A · kind A · utility
4Cited by
7References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 27, 1983 |
| Grant date | Oct 30, 1984 |
| Priority date | — |
| Expiry date | May 27, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2309/003
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A miniature cryogenic cooling system having low microphonics and thermophonics. The apparatus includes a cold finger incorporating primary and secondary working volumes and their associated regenerative beds. Both volumes are adapted to effect cooling. A displacer reciprocates within the cold finger under the influence of push-pull pressure waves from a dual compressor assembly. The cold finger includes an arrangement for providing pneumatic cushioning of the reciprocating displacer to control displacer slamming.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.