| 摘要 |
PROBLEM TO BE SOLVED: To more efficiently discharge gas phase refrigerant produced by cooling liquefied gas fuel when cooling the liquefied gas fuel by vaporizing liquid phase refrigerant. SOLUTION: A big pipe 44 of a heat exchanger 32 has opening holes 52, 54 formed in the refrigerant discharge side. The opening holes 52, 54 are integrally covered with a joint member 56 to which a refrigerant discharge pipe 36 is connected. The opening hole 52 is formed in the lower side in the vertical direction of a vehicle, and the opening hole 54 is formed in the upper side in the vertical direction of the vehicle, beyond the opening hole 52. Thus, the liquid phase refrigerant is mainly discharged from the opening hole 52, the opening hole 54 is used specially for discharging the gas phase refrigerant, and the gas phase refrigerant is efficiently and reliably discharged from the big pipe, surely preventing the degradation of cooling efficiency resulting from the gas phase refrigerant. COPYRIGHT: (C)2008,JPO&INPIT
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