Cryogenic refrigerator having a regenerator with primary and secondary flow paths
US4846861A · kind A · utility
16Cited by
10References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 6, 1988 |
| Grant date | Jul 11, 1989 |
| Priority date | — |
| Expiry date | May 6, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2309/003
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A cryogenic refrigerator is disclosed having a displacer with a regenerator therein. The regenerator opens at one end to a warm volume and at the other end to a cold volume. The opening at the cold volume includes an end hole and a plurality of radial holes. The radial holes serve as secondary passageways should the end hole become blocked with contaminants. The life of the cryogenic refrigerator is thereby greatly enchanced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.