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    • 1. 发明授权
    • Fuel supply system for engine
    • 发动机燃油供应系统
    • US06846212B2
    • 2005-01-25
    • US10143819
    • 2002-05-14
    • Tetsu WadaTomonori IkumaSadafumi ShidaraMakoto SakaiKazuki IshikawaNobuhiro Takahashi
    • Tetsu WadaTomonori IkumaSadafumi ShidaraMakoto SakaiKazuki IshikawaNobuhiro Takahashi
    • F02M37/00F02B61/04F02M37/20
    • F02B61/045F02M37/20F02M55/007
    • In fuel supply system for an engine in which a discharge port in a fuel pump driven by the engine to draw up fuel in a fuel tank is connected to an inlet port which is provided in a fuel reservoir and which is controlled in opening and closing by a float valve so that the fuel in the fuel reservoir is supplied to the engine, a second discharge port is provided in the fuel pump, and a second inlet port without a float valve is provided in the fuel reservoir. The second discharge port and the second inlet port are connected to each other through a control valve opened during starting of the engine. Thus, when the engine is started, fuel vapor generated in a pump chamber in the fuel pump can be discharged to the fuel reservoir having an air vent, to normalize the function of the fuel pump, leading to an enhancement in hot startability of the engine.
    • 在用于发动机的燃料供给系统中,其中由发动机驱动的燃料泵中的排出口在燃料箱中抽取燃料连接到设置在燃料储存器中的入口端口,该入口端口被开启和关闭控制 浮子阀,使得燃料储存器中的燃料被供应到发动机,在燃料泵中设置有第二排出口,并且在燃料储存器中设置没有浮阀的第二入口。 第二排出口和第二入口通过在发动机起动期间打开的控制阀相互连接。 因此,当发动机起动时,在燃料泵中的泵室中产生的燃料蒸汽可以排放到具有排气口的燃料储存器,以使燃料泵的功能正常化,从而提高发动机的热启动性 。