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    Impeller
    3.
    发明公开
    Impeller 有权
    Flügelrad

    公开(公告)号：EP1918589A2

    公开(公告)日：2008-05-07

    申请号：EP07114165.9

    申请日：2007-08-10

    申请人： Sigma Co. Ltd. ,  Yamada Manufacturing Co., Ltd.

    发明人： Ikeda, Kazuo ,  Okuda, Yasutaka, c/o Sigma Co., Ltd. ,  Adachi, Ryouhei, c/o Yamada Manufacturing Co., Ltd. ,  Maruyama, Satoshi, c/o Yamada Manufacturing Co., Ltd. ,  Hoshino, Satoshi, c/o Yamada Manufacturing Co., Ltd.

    IPC分类号： F04D29/02 ,  F04D29/20 ,  F04D29/22

    CPC分类号： F04D29/20 ,  B29C45/14065 ,  B29C45/1459 ,  B29C45/842 ,  B29L2031/08 ,  F04D29/026 ,  F04D29/2227 ,  F05D2300/10 ,  F05D2300/44 ,  Y10T29/49316 ,  Y10T29/49325 ,  Y10T29/49329

    摘要： The present invention provides an impeller in which a metallic bush can be inserted correctly into a synthetic resin impeller main body manufactured by resin molding using a die, and a determination as to whether or not the impeller has been manufactured correctly can be made easily. The impeller comprises: a metallic bush comprising a circumferential boss portion having a substantially truncated cone-shaped throttle portion positioned on a front surface axial end side, a periaxial support boss portion positioned in an axial center, and a circumferential protruding portion positioned on a back surface axial end side; and an impeller main body made of synthetic resin and formed with a V-shaped bulging portion that bulges axially in the center of a front surface side of a disk-shaped vane portion fulcrum, in which a plurality of vanes are formed integrally on the periphery of the V-shaped bulging portion. An outer diameter of the circumferential protruding portion of the bush is formed to be smaller than an outer diameter of an axial end location of the throttle portion, the circumferential protruding portion is positioned on a back surface side of the V-shaped bulging portion, and the bush is inserted into the V-shaped bulging portion.

    摘要翻译： 本发明提供一种叶轮，其中可以将金属衬套正确地插入到通过使用模具的树脂成型制造的合成树脂叶轮主体中，并且可以容易地确定叶轮是否被正确地制造。 叶轮包括：金属衬套，其包括周向凸台部分，其具有位于前表面轴向端侧的基本上截头圆锥形的节流部分，位于轴向中心的轴向支撑凸台部分和位于背面的周向突出部分 表面轴向端面; 以及由合成树脂制成的叶轮主体，其形成有在圆盘形叶片部分支点的前表面侧的中心轴向凸出的V形凸出部分，其中多个叶片一体地形成在周边上 的V形凸出部分。 衬套的周向突出部的外径形成为小于节流部的轴向端部的外径，周向突出部位于V形凸出部的背面侧， 衬套插入到V形凸出部分中。