Transcritical vapor compression system and method of operating including refrigerant storage tank and non-variable expansion device
US7096679B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 23, 2003 |
| Grant date | Aug 29, 2006 |
| Priority date | — |
| Expiry date | Dec 25, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2700/19
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A transcritical vapor compression system includes a fluid circuit circulating a refrigerant in a closed loop. The fluid circuit has operably disposed therein, in serial order, a compressor, a first heat exchanger, at least one non-variable expansion device and a second heat exchanger. The compressor compresses the refrigerant from a low pressure to a supercritical pressure. The first heat exchanger is positioned in a high pressure side of the fluid circuit. The second heat exchanger is positioned in a low pressure side of the fluid circuit. The at least one non-variable expansion device reduces the pressure of the refrigerant from a supercritical pressure to a relatively lower pressure. A refrigerant storage vessel is in fluid communication with the fluid circuit and contains a variable mass of refrigerant whereby the capacity of the system may be controlled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.