Split stirling cycle cryogenic cooler with spring-assisted expander
US5596875A · kind A · utility
34Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 1995 |
| Grant date | Jan 28, 1997 |
| Priority date | — |
| Expiry date | Aug 10, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B9/14
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A split Stirling cycle type of cryogenic cooler (10) includes a compressor portion (12) and an expander portion (14). The expander portion (14) is of the "cold finger" type, and is configured to operate in near-resonance with the characteristic cyclic operating rate of the compressor portion (12). As a result, an improved performance of the cooler results both during cool down from ambient temperatures and after cool down. Additionally, a quiet operation of the cooler is provided both during and after cool down to cryogenic temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.