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    • 4. 发明授权
    • Fuel pump mounting
    • 燃油泵安装
    • US5165867A
    • 1992-11-24
    • US841176
    • 1992-02-25
    • Randall L. Dockery
    • Randall L. Dockery
    • F02M37/10F04B53/00H02K5/24
    • F04B53/00F02M37/103H02K5/24
    • A mounting for an electric fuel pump on a rigid metal return fuel conduit in a fuel tank of an automobile includes a plastic support having a center body with a stepped bore therein for receiving the lower end of the return fuel conduit and a pair of integral flexible arms extending in opposite directions from the center body. The return fuel conduit has an annular shoulder which engages a shoulder on the center body to limit penetration of the return fuel conduit into the bore. The return fuel conduit also has a plurality of lugs thereon permanently deformed into notches in the center body to capture the center body between the lugs and the shoulder on the return fuel conduit. The flexible arms have wrapped positions around the fuel pump and an annular rubber isolator thereon clamping the fuel pump and the isolator to the center body. A buoyant valve element in a valve chamber in the center body is biased by its buoyancy to a seated position preventing backflow of fuel from the fuel tank into the return fuel conduit.
    • 5. 发明授权
    • Fuel sender for motor vehicle fuel system
    • 燃油发动机用于汽车燃油系统
    • US5398659A
    • 1995-03-21
    • US168243
    • 1993-12-17
    • William S. ZimmermanWayne F. HarrisUlf SawertRandall L. DockeryTimothy F. Coha
    • William S. ZimmermanWayne F. HarrisUlf SawertRandall L. DockeryTimothy F. Coha
    • F02M37/10F02M37/04B01D27/10
    • F02M37/106
    • Fuel sender at a remote or terminal end of a suction circuit of a fuel system of a motor vehicle. The fuel sender includes an unsealed reservoir in a fuel tank of the vehicle replenished by return fuel from a return fuel circuit of the fuel system and a junction chamber in the reservoir communicating with the terminal end of the suction circuit and with each of a primary flow channel and a secondary flow channel. The primary flow channel terminates at a primary screen in the fuel tank outside the reservoir. The secondary flow channel terminates at a secondary screen inside the reservoir. The secondary flow channel is restricted relative to the primary flow channel so that vacuum in the suction circuit induces flow in the primary flow channel in preference to flow in the secondary channel. Under low fuel conditions, the primary flow channel is blocked and vacuum in the suction circuit induces flow in the secondary flow channel from the reservoir. The secondary screen is flexible and actuates a differential pressure responsive bypass valve to connect the secondary flow channel directly to the reservoir when both the primary and the secondary screens are blocked.
    • 在汽车燃料系统的吸入回路的远端或终端处的燃料发送器。 燃料发送器包括在来自燃料系统的返回燃料回路的返回燃料补充的车辆的燃料箱中的未密封储存器以及与吸入回路的终端连通的储存器中的接合室,以及与主流 通道和次流通道。 主流道终止于储存器外部的燃料箱中的主屏幕。 二次流动通道终止于储存器内部的次级屏幕。 二次流动通道相对于主流动通道受到限制,使得吸入回路中的真空优先于次流体中的流动而导致主流动通道中的流动。 在低燃料条件下,主流动通道被阻塞,并且吸入回路中的真空引起来自储存器的二次流动通道中的流动。 次级屏幕是柔性的,并且当主屏幕和次屏幕被阻挡时,致动压差响应旁路阀将二次流动通道直接连接到储存器。