Refrigeration cycle device
US6293123A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2000 |
| Grant date | Sep 25, 2001 |
| Priority date | — |
| Expiry date | Jul 28, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2400/13
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
During a heating mode, higher-pressure refrigerant having passed through a condenser within an air-conditioning duct is divided into two portions. One portion is depressurized by a first depressurizing device to an intermediate pressure. Heat exchange is performed in a refrigerant-refrigerant heat exchanger between the other portion of the higher-pressure refrigerant having just passed through the condenser and the intermediate-pressure refrigerant having just passed through the first depressurizing device. During the heating mode, the higher-pressure refrigerant cooled in refrigerant-refrigerant heat exchanger 23 is supercooled by a supercooling device within the air-conditioning duct. Then, the supercooled higher-pressure refrigerant is depressurized by a second depressurizing device to a lower pressure, thereby vaporized in an outdoor heat-exchanger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.