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    Refrigeration cycle
    2.
    发明公开
    Refrigeration cycle 失效
    制冷循环

    公开(公告)号：EP0779482A2

    公开(公告)日：1997-06-18

    申请号：EP96119355.4

    申请日：1996-12-03

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： Yamaguchi, Narito ,  Watanabe, Yukio, 1108 Coop Nomura Kyotominami ,  Fujitaka, Akira ,  Wakabayashi, Hisao ,  Haneda, Kanji ,  Numoto, Hironao ,  Kobayashi, Yoshinori ,  Watanabe, Shinji ,  Yakumaru, Yuichi

    IPC分类号： F25B41/06

    CPC分类号： F25B41/067 ,  F25B2341/0661 ,  F25B2500/01

    摘要： To present a refrigeration cycle of high reliability by controlling, in a refrigeration cycle, deposit of foreign matter at inlet or outlet of a capillary tube in a simple and inexpensive structure, regardless of changeover of cooling operation and heating operation. In a refrigeration cycle using an alternative refrigerant, a junction 3b of a capillary tube 3a composing an expansion device 3 and a piping 5 has a slope 6 gradually decreased in inside diameter from the piping 5 side to the capillary tube 3a side. An end portion of the capillary tube 3a projects into the junction 3b at the piping 5 side. The projecting end of the capillary tube 3a is opened obliquely to the axial line of the capillary tube. A hole is formed in the peripheral wall of the projecting end of the capillary tube 3a. In such constitution, foreign matter in the refrigerant is forced to deposit in other portions than the capillary tube 3a, and the foreign matter is removed from the refrigerant. At the same time, the depositing foreign matter is prevented from having effects on the flow of the refrigerant.

    摘要翻译： 通过在冷冻循环中控制毛细管的入口或出口处的异物沉积，以简单且便宜的结构控制高可靠性的制冷循环，而不管制冷操作和加热操作的转换。 在使用替代制冷剂的制冷循环中，构成膨胀装置3的毛细管3a的接合部3b和配管5具有从配管5侧向毛细管3a侧的内径逐渐减小的倾斜部6。 毛细管3a的端部伸入配管5侧的接合部3b。 毛细管3a的突出端相对于毛细管的轴线倾斜地开口。 在毛细管3a的突出端的周壁上形成孔。 在这种结构中，制冷剂中的异物被迫沉积在除毛细管3a之外的其他部分，并且异物从制冷剂中去除。 同时，防止沉积的异物影响制冷剂的流动。