Refrigeration cycle apparatus
US6923016B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Apr 7, 2004 |
| Grant date | Aug 2, 2005 |
| Priority date | — |
| Expiry date | Apr 7, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2700/21151
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
In a refrigerant cycle apparatus, an energy-saving operation is performed by using a refrigerant which is used in a supercritical state. A refrigeration cycle apparatus is constituted by a main compressor, an expander, a sub compressor independently placed in an upstream side of the main compressor, a use side heat exchanger, a heat source side heat exchanger and the like. A refrigerant such as a carbon dioxide or the like which is used in a supercritical state is employed as the refrigerant. The sub compressor is driven by utilizing a recovered energy by the expanding device. Further, a refrigerant tank is provided, and properly controls an amount of the refrigerant circulating in the refrigerant cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.