Refrigeration apparatus

A refrigeration apparatus which uses a refrigerant that operates in a supercritical range, the refrigeration apparatus comprising:

• a compression mechanism having a plurality of compression elements, the compression mechanism being configured and arranged so that refrigerant discharged from a first-stage compression element of the plurality of compression elements is sequentially compressed in a second-stage compression element;
• a heat source-side heat exchanger in which air is used as a heat source;
• an expansion mechanism configured and arranged to depressurize the refrigerant;
• a usage-side heat exchanger;
• and
• an intercooler in which air is used as a heat source, the intercooler being configured and arranged to cool refrigerant flowing through an intermediate refrigerant tube that draws refrigerant discharged from the first-stage compression element into the second-stage compression element;
• the intercooler being integrated with the heat source-side heat exchanger to form an integrated heat exchanger, with the intercooler being disposed in an upper part of the integrated heat exchanger.