Refrigeration cycle device

A refrigeration cycle device comprising:

• a compressor that is configured to compress refrigerant and includes:
• a suction inlet which is configured to suction the refrigerant having a low pressure;
• an intermediate-pressure suction inlet which is configured to suction the refrigerant having an intermediate pressure that is higher than the low pressure;
• and
• a discharge outlet which is configured to discharge the refrigerant compressed by the compressor;
• a heat releasing device that is configured to release heat from the refrigerant discharged from the discharge outlet;
• a liquid storage that is configured to store the refrigerant which is surplus in a cycle in the refrigeration cycle device;
• a first depressurizing device that is configured to depressurize the refrigerant;
• an external heat exchanger that is configured to exchange heat between the refrigerant, which is outputted from the first depressurizing device, and outside air;
• a second depressurizing device that is configured to depressurize the refrigerant;
• an evaporating device that is configured to evaporate the refrigerant which is depressurized by the second depressurizing device;
• and
• a third depressurizing device that is configured to depressurize at least a portion of one of:
• the refrigerant, which is on an upstream side of the liquid storage;
• and
• the refrigerant, which is outputted from the liquid storage, wherein the third depressurizing device is configured to output the refrigerant, which is depressurized by the third depressurizing device, toward the intermediate-pressure suction inlet;
• and
• a refrigerant circuit switching device that is configured to switch a refrigerant circuit, wherein:
• the refrigerant circuit switching device is configured to switch among at least:
• a first circuit that is configured to conduct the refrigerant, which is outputted from the heat releasing device, to the liquid storage and conduct the refrigerant, which is outputted from the liquid storage, to the first depressurizing device and conduct the refrigerant, which is depressurized by the first depressurizing device, to the external heat exchanger;
• and
• a second circuit that is configured to conduct the refrigerant, which is outputted from the external heat exchanger, to the liquid storage and conduct the refrigerant, which is outputted from the liquid storage, to the second depressurizing device and conduct the refrigerant, which is depressurized by the second depressurizing device, to the evaporating device;
• in a state where the refrigerant circuit switching device switches to and thereby establishes at least one of the first circuit and the second circuit, the refrigerant circuit switching device is configured to switch to and thereby establish a refrigerant circuit that conducts the refrigerant, which is depressurized by the third depressurizing device, to the intermediate-pressure suction inlet;
• and
• the refrigerant circuit switching device is configured to switch the refrigerant circuit such that a flow direction of the refrigerant in the external heat exchanger at a time of switching to and thereby establishing the first circuit coincides with a flow direction of the refrigerant in the external heat exchanger at a time of switching to and thereby establishing the second circuit.