Automatic refrigerant charge variation

Details Automatic refrigerant charge variation Automatic refrigerant charge variation

F - Mech Eng,Light,Heat,Weapons

25

B

F25B 30/00 (2006.01) F25B 13/00 (2006.01) F25B 41/04 (2006.01) F25B 45/00 (2006.01)

Patent

CA 2061471

Invention: Automatic Refrigerant Charge Variation Means Inventor: Wayne R. Reedy Abstract of the Disclosure A heat pump system that includes a compressor, an outdoor heat exchanger and an indoor heat exchanger is provided with automatic refrigerant charge adjustment. A refrigerant reservoir has an inlet branch coupled to a liquid refrigerant line between the two heat exchangers and a discharge branch that is coupled to the suction line that feeds low pressure vapor to the compressor. Solenoid valves on the two branches are controlled by a thermostat that is in thermal contact with the discharge line from the compressor. If the discharge temperature is low, refrigerant liquid is transferred to the reservoir. If the discharge temperature is high, the refrigerant is injected into the suction gas. -17-

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