Trans-critical vapor compression device
US5655378A · kind A · utility
12Cited by
5References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 8, 1995 |
| Grant date | Aug 12, 1997 |
| Priority date | — |
| Expiry date | Jun 8, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2600/17
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A vapor compression system includes a compressor, a heat rejecting heat exchanger, an expansion device and an evaporator connected in series to form a closed circuit operating at supercritical pressure in a high pressure side of the circuit. A large part of the internal volume of the circuit is incorporated at or close to a refrigerant outlet from the heat exchanger. The actual refrigerant charge corresponds to an optimum overall density ensuring self-adaptation of the supercritical high-side pressure to maintain maximum energy efficiency at varying heat rejection temperatures of the heat exchanger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.