A fuel system design objective is to have the fuel injection pressure at target pressure by the time of the first injection. In most cases, a vapor and air space forms in the highest and hottest part of the fuel injector supply as the fuel system cools following engine-off. Upon key-on, the fuel pump needs to collapse the fuel vapor and compress any air before fuel pressure can build thus delaying fuel injector re-pressurization. An inventive solution to speed re-pressurization is described. It effectively eliminates the need to collapse the fuel vapor and compress any air in the first few tenths of seconds of fuel injection re-pressurization. The factors that affect fuel injection re-pressurization time are discussed.


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    Titel :

    Rapid Fuel Injector Re-Pressurization


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    SAE World Congress & Exhibition ; 2007



    Erscheinungsdatum :

    16.04.2007




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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