| 摘要 |
PROBLEM TO BE SOLVED: To shorten the time for loading an oil for lubricating a compressor 16 in a heat pump 10.SOLUTION: A heat pump 10 has: a compressor 16; an oil separator 32 provided in a discharge passage of the compressor 16; an oil return passage 62 for returning an oil from the oil separator 32 to the compressor 16; an on-off valve 64 disposed in the oil return passage 62; loading ports 66 provided in a portion of the oil return passage 62, which is located between the oil separator 32 and the on-off valve 64, and used when the oil is loaded.SELECTED DRAWING: Figure 1 |
