| 摘要 |
PROBLEM TO BE SOLVED: To provide a refrigerant visual test device and a transparent resin body manufacturing method for refrigerant visual test capable of more accurately reproducing the flow of refrigerant in a refrigerant expanding portion of a heat pump type refrigerant circuit to make it visible in comparison with a conventional one. SOLUTION: According to this refrigerant visual test device 20, the refrigerant flowing in the refrigerant expanding portion can be visually confirmed by seeing through the transparent resin body 40. Here, as the transparent resin body 40 is composed of a transparent resin molding, a conventional problem caused by cutting defect does not occur. Further as the transparent resin body 40 has a refrigerant flow channel 44 of a three-layered structure formed by integrating a transparent core portion 41 penetrating through a shaft center portion, a first transparent reinforcement layer 42 and a second transparent reinforcement layer 43, a problem on sink can be solved by successively molding the same from the transparent core portion 41 toward the outer side. COPYRIGHT: (C)2007,JPO&INPIT
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