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    Regenerative fuel pump
    5.
    发明授权
    Regenerative fuel pump 失效
    再生燃油泵

    公开(公告)号：US07559315B1

    公开(公告)日：2009-07-14

    申请号：US12029394

    申请日：2008-02-11

    申请人： Dequan Yu ,  Sheven Sharp ,  Harold L. Castle ,  Stephen T. Kempfer ,  Robert Joseph Pyle

    发明人： Dequan Yu ,  Sheven Sharp ,  Harold L. Castle ,  Stephen T. Kempfer ,  Robert Joseph Pyle

    IPC分类号： F02M37/20 ,  F02M37/22

    CPC分类号： F02M37/048 ,  F02M37/20 ,  F02M37/22

    摘要： A rotodynamic fuel pump in a fuel delivery system for an internal combustion engine including a pump housing, a pump inlet channel extending through the housing allowing fuel to be drawn into the pump, a purge orifice extending through the housing and spaced away from the pump inlet channel, the purge orifice allowing fuel vapor to exit the pump, the purge orifice including a purge inlet, a purge outlet, and a purge channel, where the purge inlet is axially offset from the purge outlet.

    摘要翻译： 用于内燃机的燃料输送系统中的旋转动力燃料泵，包括泵壳体，延伸穿过壳体的泵入口通道，允许燃料被吸入泵中;净化孔，其延伸穿过壳体并与泵入口间隔开 吹扫孔允许燃料蒸汽离开泵，净化孔包括净化入口，净化出口和净化通道，其中净化入口与净化出口轴向偏移。

    Automotive fuel pump housing
    6.
    发明授权
    Automotive fuel pump housing 失效
    汽车燃油泵外壳

    公开(公告)号：US5551835A

    公开(公告)日：1996-09-03

    申请号：US566210

    申请日：1995-12-01

    申请人： Dequan Yu ,  Harold L. Castle

    发明人： Dequan Yu ,  Harold L. Castle

    IPC分类号： F04D5/00 ,  F04D29/66 ,  F04D9/00

    CPC分类号： F04D29/669 ,  F04D5/002 ,  F04D5/007 ,  F05B2250/503

    摘要： An automotive fuel pump housing for a fuel pump encases a rotary pumping element. The housing has two portions, a cover and a bottom. The cover has an inlet port which defines a directional control surface having an inclined frustoconical portion and an inclined planar portion conjoined therewith and laterally extending therefrom such that fuel flowing over the inclined frustoconical portion accelerates primarily radially and combines with fuel flowing primarily axially over the inclined planar portion, whereby the combined flow is smoothly directed to an annular cover channel. The bottom has an annular bottom channel which, when the cover and bottom are assembled, the annular cover channel and annular bottom channel cooperate to form the inlet channel. A transition section is located at the beginning of the inlet channel and extends along a portion of the arc of the inlet channel. The transition section decreases in depth from a maximum depth at the beginning thereof to the depth of the remaining portion of the inlet channel. The annular cover channel has a two-step transition section depth whereas the annular bottom channel has a single-step transition section depth. In addition, the radius of the base circle of the inlet channel outside of the transition section is not less than the radius of the rotary pumping element near the vane grooves.

    摘要翻译： 用于燃料泵的汽车燃料泵壳体包围旋转泵送元件。 外壳有两个部分，一个盖子和一个底部。 盖具有入口端口，该入口限定了具有倾斜的截头圆锥形部分的倾斜平面部分和与其结合并从其侧向延伸的倾斜平面部分的方向控制表面，使得流过倾斜截头圆锥形部分的燃料主要径向地加速，并与主要在轴向上倾斜在倾斜 平面部分，由此组合的流动平滑地引导到环形覆盖通道。 底部具有环形底部通道，当盖和底部组装时，环形盖通道和环形底部通道配合形成入口通道。 过渡部分位于入口通道的开始处并且沿着入口通道的弧的一部分延伸。 过渡部分从其开始处的最大深度到入口通道的剩余部分的深度的深度减小。 环形盖通道具有两级过渡段深度，而环形底部通道具有单步过渡段深度。 此外，过渡部分外侧的入口通道的基圆的半径不小于叶片槽附近的旋转泵送元件的半径。