Following general considerations about the advantages of two stroke S.I. engines equipped with direct fuel injection systems, especially for light vehicle applications, two solutions, developed for mass production, are presented.The first one deals with a mechanical high pressure D.I. system characterized by an essential fuel delivery control.The second one is concerned with an electronic low pressure semi - D.I. in view of a reduction of the involved costs.While the mechanical solution achieves a dramatic reduction in HC emission and fuel consumption but with high costs, the electronic one still appears a good compromise between improvements and costs when very fast injectors are industrially available.


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    Title :

    Direct Fuel Injection: Piaggio Approach to Small 2T SI Engines


    Additional title:

    Sae Technical Papers


    Contributors:
    Nuti, Marco (author)

    Conference:

    SAE International Congress and Exposition ; 1988



    Publication date :

    1988-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English







    FAST injection system: Piaggio solution of ULEV 2T SI engines

    Nuti,M. / Pardini,R. / Caponi,D. et al. | Automotive engineering | 1997


    FAST Injection System: PIAGGIO Solution for ULEV 2T SI Engines

    Caponi, David / Nuti, Marco / Pardini, Roberto | SAE Technical Papers | 1997