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    • 5. 发明授权
    • Turbine type electric fuel pump for automobile
    • 汽轮机型电动燃油泵
    • US07156610B2
    • 2007-01-02
    • US10896499
    • 2004-07-22
    • Jin Wook JangSang Jun ParkSang Chul NohYong Taek Hwang
    • Jin Wook JangSang Jun ParkSang Chul NohYong Taek Hwang
    • F04D5/00
    • F04D29/188
    • Provided is a turbine type electric fuel pump for an automobile having a casing in which a pump portion and a motor portion are installed. The pump portion includes a fuel intake case having a fuel intake hole, a fuel discharge case having a fuel discharge hole, and an impeller installed on a pumping chamber. An inlet side ring type duct is connected to the fuel intake hole. An outlet side ring type duct is connected to the fuel discharge hole. The impeller includes a disc portion in which a shaft assembly portion is formed at the center thereof, a plurality of blades extending from an outer circumferential surface of the disc portion outwardly in a radial direction, and a ring portion connecting the blades along the outer circumferential surface of the disc portion. The outer circumferential surface of the disc portion gradually protrudes outwardly in a radial direction of the impeller from both upper and lower sides thereof to a center thereof. The inner circumferential surface of the ring portion gradually protrudes inwardly in a radial direction of the impeller from both upper and lower sides thereof to a center thereof.
    • 提供一种用于汽车的涡轮式电动燃料泵,其具有其中安装有泵部分和马达部分的壳体。 泵部分包括具有燃料进入孔的燃料进入壳体,具有燃料排出孔的燃料排出壳体和安装在泵送室上的叶轮。 入口侧环型管道连接到燃料进入孔。 出口侧环形管道连接到燃料排放孔。 叶轮包括在其中心处形成有轴组件部分的盘部分,从盘部分的外圆周表面沿径向向外延伸的多个叶片,以及沿着外周部连接叶片的环部分 盘部分的表面。 盘部的外周面从叶轮的上下方向向中心渐渐地从叶轮的径向向外侧突出。 环状部的内周面从叶轮的上下方向向中心渐渐地从叶轮的径向向内侧突出。