Air conditioner
US10527322B2 · kind B2 · utility
0Cited by
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10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2015 |
| Grant date | Jan 7, 2020 |
| Priority date | — |
| Expiry date | Jan 7, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/70
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Provided is a air conditioner including high-and-low-pressure gas pipe expansion valves each of which is provided to a corresponding one of the cooling-heating switching units and adjusts feeding of high-temperature and high-pressure gas refrigerant to the corresponding indoor unit; and a refrigeration cycle controller which adjusts a valve opening degree of the high-and-low-pressure gas pipe expansion valve of the cooling-heating switching unit connected to one of the indoor units which is not in heating operation, in accordance with a determination result on excess or deficiency of refrigerant in a refrigeration cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.