Patent ID: 11933528
Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Field: Measurement (Instruments)
Classification: CPC F  G | IPC F  G

Claim 9:
10. A refrigeration system comprising:
a refrigeration cycle including:
a compressor configured to compress a refrigerant;
a condenser configured to condense the refrigerant received from the compressor;
an expansion valve configured to expand the refrigerant received from the condenser,

wherein the expansion valve has an expansion valve inlet and an expansion valve outlet; and
an evaporator configured to evaporate the refrigerant received from the expansion valve;
a heat exchanger configured to selectively cool the refrigerant at the expansion valve inlet;
a pressure sensor device configured to calculate a pressure differential of the refrigerant between the expansion valve inlet and expansion valve outlet; and
a system control module configured to determine that the refrigerant is not a saturated liquid based on the pressure differential, and configured to cool the refrigerant upstream of the expansion valve in response to determining that the refrigerant is not a saturated liquid.