REFRIGERATION DEVICE

Provided is a refrigeration apparatus that is capable of implementing a novel control method capable of suppressing occurrence of a situation in which a refrigerating machine oil from an oil separator is unsatisfactorily returned to a compressor and a discharge gas refrigerant is mostly returned to the compressor. An oil return valve (39) is disposed on an oil return pipe (38) connecting an oil separator (23) disposed on a discharge side of a compressor (21) to an injection pipe (30) for supplying a refrigerant to the compressor (21). A controller (70) controls the oil return valve (39) to reduce a flow rate when a temperature of the refrigerant discharged from the compressor (21) or a pressure of the refrigerant flowing through the injection pipe (30) satisfies a predetermined condition.