COMPRESSOR, REFRIGERATION CYCLE DEVICE, AND HEAT PUMP HOT-WATER SUPPLY DEVICE

摘要

The compressor includes: a first intake passage for guiding a refrigerant to a compressing element without releasing the refrigerant into a sealed container; a first discharge passage for discharging a high pressure refrigerant compressed by the compressing element to an outside of the sealed container; a second intake passage for guiding the high pressure refrigerant having passed through an external heat exchanger into the sealed container; a second discharge passage for discharging the high pressure refrigerant in the sealed container; and an oil return flow path for guiding refrigerator oil from the first discharge passage into the sealed container or the second intake passage. Due to pressure loss of the external heat exchanger, pressure in the sealed container and the second intake passage is lower than pressure in the first discharge passage. Owing to a difference between the pressures, the refrigerator oil moves in the oil return flow path.