| 摘要 |
PROBLEM TO BE SOLVED: To provide an ejector type refrigeration cycle device capable of returning lubricant into a compressor in a short time even in a case where a lubricant outflows from the inside of the compressor during long-term stop of the compressor.SOLUTION: A control device 30 executes lubricant return operation that controls operations of a compressor 11, an on-off valve 18 and the like in a case where a condition of having the probability that lubricant outflows from the inside of the compressor 11 during stop of the compressor 11 is established, and forms refrigerant flow from the compressor 11 toward at least a bypass passage 17 out of a water refrigerant heat exchanger 12 and the bypass passage 17.SELECTED DRAWING: Figure 1 |
