Invention Publication
- Patent Title: METHODS AND SYSTEMS FOR DETERMINING PHASE STATE OR SUBCOOLING STATE
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Application No.: US17456999Application Date: 2021-11-30
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Publication No.: US20230168014A1Publication Date: 2023-06-01
- Inventor: Neeraj S Shidore , Min Sun , Ryan D Hopper , Cameron Paul Smith
- Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Applicant Address: US MI Detroit
- Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee Address: US MI Detroit
- Main IPC: F25B49/02
- IPC: F25B49/02 ; G01N9/26

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.
Public/Granted literature
- US11933528B2 Methods and systems for determining phase state or subcooling state Public/Granted day:2024-03-19
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