Patent ID: 7302807

Claim:
A refrigerating cycle device comprising: a refrigerating cycle subsystem including: a compressor that compresses a refrigerant which contains carbon dioxide, a refrigerant-water heat exchanger that performs a refrigerant-water heat exchange between water and the refrigerant compressed by the compressor, a first decompressor configured to decompress the compressed refrigerant passed through said refrigerant-water heat exchanger, a first heat exchanger that performs a first heat exchange between the refrigerant passed through said first decompressor and first air, an internal heat exchanger that performs an internal heat exchange between the refrigerant passed through said first heat exchanger and the refrigerant subjected to a second heat exchange, said compressor receiving the refrigerant passed from an outlet of said internal heat exchange, a second decompressor that decompresses the refrigerant passed from a further outlet of the internal heat exchanger, and a second heat exchanger that performs the second heat exchange between the refrigerant decompressed by the second decompressor and second air, said second air different from said first air. said refrigerating cycle subsystem providing a refrigerating cycle for said refrigerant by sequentially connecting said compressor, said refrigerant-water heat exchanger, said first decompressor, said first heat exchanger, said internal heat exchanger, said second decompressor, said second heat exchanger, and said internal heat exchanger, and a water cycle subsystem including: a power engine that heats the water, the refrigerant-water heat exchanger, the refrigerant-water heat exchanger receiving the water heated by the power engine, a heater core that receives the water passed through the refrigerant-water heat exchanger, said heater core arranged downstream of and in proximity to the second heat exchanger to receive the second air modified by flow through said second heat exchanger, and a radiator, separate from said heater core, that receives the water passed through said heater core and passes the water to said power engine, said water cycle subsystem providing a water cycle for the water by sequentially connecting said power engine, said refrigerant-water heat exchanger, said heater core and said radiator, wherein an air conditioning capacity is adjusted by adjusting a degree of an opening of the second decompressor at a time of heating and dehumidifying.