REFRIGERATION CYCLE DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a refrigeration cycle device that stably operates a compressor by reducing a discharge temperature of the compressor while securing reliability of the compressor.SOLUTION: A refrigeration cycle device comprises discharge temperature detection means 51 that detects a discharge refrigerant temperature of a compressor 1 and refrigerator oil temperature detection means 52 that detects a refrigerator oil temperature in a shell of the compressor or a shell outside surface temperature of the compressor 1. Control means controls an opening of an injection flow rate control device 7 on the basis of a first temperature difference that is a difference between the discharge refrigerant temperature detected by the discharge temperature detection means 51 and a discharge temperature threshold value and a second temperature difference that is a difference between the refrigerator oil temperature detected by the refrigerator oil temperature detection means 52 and a refrigerator oil temperature threshold value.