INTEGRATED VALVE

PROBLEM TO BE SOLVED: To provide an integrated valve which is applied to a heat pump cycle and by which en effect of suppressing heat transfer from a low-temperature refrigerant after passage through a fixed throttle to the liquid phase refrigerant before passage through the fixed throttle is surely obtained on a long-term basis.SOLUTION: The inner wall surface of a body forming a liquid-phase refrigerant passage 141a is covered with a cylindrical resin heat insulation member 51 to suppress heat transfer via a lower body 141 from a low-temperature refrigerant after passage through a throttle to the liquid phase refrigerant before passage through the throttle. A gap between the inner wall surface of the body and the heat insulation member 51 is sealed with a seal member 52 to prevent the low-temperature refrigerant from flowing to the throttle side through the gap.SELECTED DRAWING: Figure 5 【課題】ヒートポンプサイクルに適用される統合弁において、固定絞り通過後の低温の冷媒から固定絞り通過前の液相冷媒への熱移動を抑制する効果が長期的に確実に得られる統合弁を提供する。【解決手段】液相冷媒通路１４１ａを形成するボデーの内壁面を、樹脂製の筒状の断熱部材５１にて覆い、ロワーボデー１４１を介する絞りを通過後の低温の冷媒から絞りを通過前の液相冷媒への熱移動を抑制する。また、ボデーの内壁面と断熱部材５１との隙間をシール部材５２にてシールして、低温の冷媒がその隙間を介して絞り側へ流れるのを防止する。【選択図】図５