Heat source unit and refrigeration system
US8297073B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2008 |
| Grant date | Oct 30, 2012 |
| Priority date | — |
| Expiry date | Nov 23, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2500/02
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An outdoor unit (20) including a compressor (21) and an outdoor heat exchanger (22) and an indoor unit (30) including an indoor heat exchanger (31) are provided. The outdoor unit (20) and the indoor unit (30) constitute a main circuit (43) of a refrigerant circuit (40). A sub-circuit (70) whose one end is connected to a liquid line (4a) of the main circuit (43) and another end is connected to a low-pressure gas line (4b) of the main circuit (43), and which stores refrigerant in the main circuit (43) is also provided. The sub-circuit (70) is located on a sub-passageway (71), and includes: a refrigerant regulator (72) for storing refrigerant in the main circuit (43); and a switch mechanism (73) for establishing and blocking communication between the refrigerant regulator (72) and each of the liquid line (4a) and the low-pressure gas line (4b). When the amount of refrigerant in the main circuit (43) is excessive, redundant refrigerant in the main circuit (43) is stored in the refrigerant regulator (72).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.