Refrigeration and air-conditioning apparatus, refrigerant leakage detection device, and refrigerant leakage detection method
US9677799B2 · kind B2 · utility
1Cited by
3References
22Claims
0Family size
Assignee
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Key dates
| Filing date | May 28, 2013 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | Dec 11, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/70
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A refrigeration and air-conditioning apparatus rapidly varies the pressure or the temperature inside a liquid reserve container to identify a liquid level position inside the liquid reserve container on the basis of the surface temperature of the liquid reserve container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.