| 摘要 |
PROBLEM TO BE SOLVED: To store the food not only with cold but also with heat. SOLUTION: A first valve 30 and a fourth valve 33 are opened, a second valve 31 and a third valve 32 are closed, and a refrigerant is allowed to pass through a first expansion valve 22 and a second expansion valve 23, and is expanded by a third expansion valve 25. The refrigerant from a compressor 20 is branched at a branching point P1 to be divided into the refrigerant A and the refrigerant B, the refrigerant A is passed through the fourth valve 33 to flow into a first heat exchanger 24 to exchange the heat with the air inside of the heating/cooling storage 12 to be heated, and further passed through the second expansion valve 23 to reach the branch point P3. On the other hand, the refrigerant B is passed through the first valve 30 to flow into a third heat exchanger 21 to exchange the heat with the air outside of the storage by the third heat exchanger 21 to radiate the heat, and then passed through the first expansion valve 22 to reach the branch point P3. Then the refrigerant A and the refrigerant B are joined at the branch point P3 and expanded by the third expansion valve 25, and flows into a second heat exchanger 26. COPYRIGHT: (C)2005,JPO&NCIPI
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