| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem that since gas-liquid two-phase refrigerant cannot be supplied continuously and effectively to a throttle part, flowing sound of refrigerant is increased and a sound insulation material or a damping material is required around the contour of the throttle part, and a problem that choking by a foreign matter must be prevented in the refrigeration cycle. SOLUTION: A throttle part comprising an inlet side foamed metal 15a, an orifice 16, and an outlet side foamed metal 15b interconnected in the direction of refrigerant flow is provided in a valve element and a second flow controller comprising a means for switching the refrigerant between a position passing through the valve element and a bypassing position is built in a refrigeration cycle wherein gas-liquid two-phase refrigerant is passed through the throttle part.
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