Cryo-refrigeration system
US4850199A · kind A · utility
12Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 1988 |
| Grant date | Jul 25, 1989 |
| Priority date | — |
| Expiry date | Mar 21, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B7/00
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Multiple refrigeration systems, each with refrigerants having a different boiling point, are connected in series to provide successively lower temperatures. Following compression and heat rejection, the refrigerant mixture is cooled by heat exchange with refrigerant returning to the compressor. Gas and liquid phases are separated and the gas is cooled further by heat exchange with mixture returning to the compressor. System capacity is controlled by throttling the compressor suction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.