| 摘要 |
PROBLEM TO BE SOLVED: To prevent the generation of eccentric flow of refrigerant in any of a dew proofing pipeline mainly arranged in a part lower than a Stirling refrigerating machine and a dew proofing pipeline mainly arranged in a part higher than the Stirling refrigerating machine, in regard to a refrigerator for cooling inside thereof with the Stirling refrigerating machine. SOLUTION: The refrigerator 1 is provided with a chillroom 20, a freezing chamber 30 and a machine chamber 40 housing the Stirling refrigerating machine 50 inside a heat insulating casing 10. Secondary refrigerant of a high-temperature side secondary refrigerant circulation circuit 60 combined with a heat radiation part 51 of the Stirling refrigerating machine 50 is fed to the dew proofing pipeline 110 by the pressure of a pump 111. The dew proofing pipeline 110 is divided into a first pipeline part 110c mainly arranged in the part lower than the Stirling refrigerating machine 50 and a second pipeline part 110d mainly arranged in the part higher than the Stirling refrigerating machine 50, and the first pipeline part 110c is provided with an opening/closing valve 113 to be controled for opening/closing with the predetermined interval by a control unit 15. COPYRIGHT: (C)2006,JPO&NCIPI
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