| 摘要 |
PROBLEM TO BE SOLVED: To provide a cold storage type refrigerator capable of reducing a heat intrusion amount caused by a leakage refrigerant which flows from a gap between a cylinder and a displacer by cooling the refrigerant by heat exchange.SOLUTION: The cold storage type refrigerator 31 reciprocates a displacer container 2 in the cylinder 1 to generate cold by a heat cycle which periodically fluctuates a space volume formed on a bottom surface of an end of the cylinder 1 and an outer surface of the displacer container 2 and the inner-volume pressure. In this case, the inside of the displacer container 2 is filled with a cold storage material 3, and at least one stage of a high specific heat material 6 which heat-exchanges the refrigerant which passes through the gap 1a between the cylinder 1 and the displacer container 2 and the cold storage material 3 is provided on the outer surface of the displacer container 2. |
