Hydraulic refrigeration system and method
US4251998A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 1979 |
| Grant date | Feb 24, 1981 |
| Priority date | — |
| Expiry date | Feb 16, 1999 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B1/06
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A refrigerant fluid is entrained within a down pipe of a closed loop water flow circuit to compress the refrigerant fluid from a gaseous state to a liquid state. A separation chamber at the lower extremity of the down pipe separates the liquid refrigerant fluid from the water and the water is drawn off. The water flows upwardly through a return pipe and pump, through a pipe for reintroduction to the down pipe at the upper end thereof. The drawn off liquid refrigerant flows upwardly through a return pipe, through a liquid refrigerant pump and through an expansion valve. The refrigerant fluid, converted to a mixture of vapor and liquid, called a "quality mixture of the refrigerant" by the expansion valve, flows through an evaporator to cool a medium, such as air, passing therethrough. The refrigerant fluid, flowing from the evaporator and in a gaseous state, is introduced to the upper end of the down pipe for re-entrainment in the water flowing into the down pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.