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Refrigerant cycling device

  • US 20040107720A1
  • Filed: 10/09/2003
  • Published: 06/10/2004
  • Est. Priority Date: 12/05/2002
  • Status: Active Grant
First Claim
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1. A refrigerant cycling device, comprising:

  • a compressor, connected to a heat exchanger and a depressurizing means, for performing a cooling operation and a heating operation, wherein the compressor further comprises a first and a second rotary compression elements, and a refrigerant that is compressed and discharged by the first rotary compression element is introduced to the second rotary compression element;

    an intermediate cooling circuit for radiating heat of the refrigerant discharged from the first rotary compression element; and

    a valve device for opening a passage of the intermediate cooling circuit during the cooling operation.

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