Two-stage refrigeration system
US6516626B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2001 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Jun 27, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2400/23
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A two-stage refrigeration system includes an intermediate slurry tank for receiving and storing a refrigerant vapor and a slurry of solid sublimatable refrigerant particles in a liquid. The intermediate slurry tank has a first outlet for outflow of the slurry from the tank, a second outlet for outflow of the refrigerant vapor, a first inlet for receiving at least the liquid, and a second inlet for receiving the refrigerant. The refrigeration system also includes a compression system having a first low pressure inlet and second intermediate pressure inlet, and having a high pressure outlet. A conduit connects the second outlet of the intermediate slurry tank to the intermediate pressure inlet of the compression system so as to compress the vapor with less energy than would be needed to compress low pressure refrigerant vapor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.