Methods and systems for determining phase state or subcooling state
US11933528B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Nov 30, 2021 |
| Grant date | Mar 19, 2024 |
| Priority date | — |
| Expiry date | Jan 4, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2700/191
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and systems provided for determining a phase state and/or for determining a degree of subcooling in a fluid. An exemplary method for operating a refrigeration cycle includes flowing a refrigerant through a metering device and calculating a pressure differential of the refrigerant across the metering device. Further, the method includes determining whether the refrigerant is a saturated liquid based on the pressure differential. The method includes, when the refrigerant is not a saturated liquid, cooling the refrigerant upstream of the metering device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.