Single and multistage refrigeration system and method using hydrocarbons
US5363664A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1992 |
| Grant date | Nov 15, 1994 |
| Priority date | — |
| Expiry date | Dec 22, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B9/002
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A hydraulic refrigeration system (10) employs as a preferred embodiment a hydrocarbon fluid as a refrigerant in combination with a non-miscible carrier fluid. A plurality of stages (110, 210, 310) of hydraulic refrigeration system (10) may be used by conveying the segregated refrigerant vapor from each stage to the entrainer (240, 340) of the next succeeding stage (210, 310). The liquid refrigerant of the last stage (310) is conveyed to an evaporator (416), which may be remotely located. The outflow of the evaporator (416) is conveyed to the entrainer (140) of the first stage (110). Second and succeeding stages include a non-miscible carrier fluid return line (268) connected to the respective separators (214, 314) for returning the non-miscible carrier fluid to the separator (114) of the first stage (110).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.