A compact, low-cost fuel pump module has been developed for use in motorcycles with a small-displacement engine. Various considerations are given to make the module as compact as possible. The pump motor, which is one of the major component parts, is down-sized specifically for applications to small-displacement engines. The pressure regulator uses a simple construction consisting only of a ball and a spring without a diaphragm. Especially noteworthy is that with the volume reduced by approximately 40% from the conventional pressure regulator while using the construction that reduces self-excited vibrations caused by fuel pressure pulsations, the pressure regulator contributes significantly to the down-sizing and cost reduction of the module. Furthermore, the down-sized module remarkably reduces the size of fuel pump mount surface, allowing a modification from the flat-surface sealing to the radial sealing. The pump mount method is changed from the conventional bolt-on to the retainer-slide type for easy assembly and a reduction of number of parts. With all the aforementioned modifications, the cost is reduced by approximately 30% and the mount surface area on the fuel tank is reduced by 40%.


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    Title :

    Development of Compact Fuel Pump Module for Motorcycles


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Small Engine Technology Conference & Exposition ; 2008



    Publication date :

    2008-09-09




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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