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U.S. Department of Energy
Office of Scientific and Technical Information

Self operating excess refrigeant storage system for a heat pump

Patent ·
OSTI ID:6552463
Excess refrigerant is collected within a refrigerant pot surrounding a portion of the return conduit connecting the outdoor coil operating as an evaporator during a heat pump heating cycle to the compressor creating a reduced pressure-temperature relationship within the pot cavity causing the migration of liquid refrigerant through a small diameter tube connecting the pot to the liquid line leading from the indoor coil to the outdoor coil at a point upstream of the outdoor coil expansion valve.
Assignee:
Dunham-Bush, Inc.
Patent Number(s):
US 4045977
OSTI ID:
6552463
Country of Publication:
United States
Language:
English