Small bore diesel engines often adopt a two-valve cylinder head and a non-central injector layout to expand the port flow passage area. This non-central injector layout causes asymmetrical gas flow and fuel distribution, resulting in worse heat losses and a less homogenous fuel-air mixture than an equivalent four-valve cylinder head layout with a central injector. This paper describes the improvement of piston bowl geometry to achieve a more homogeneous gas flow and fuel-air mixture. This concept reduced fuel consumption by 2.5% compared to the original piston bowl geometry, while also reducing NOx emissions by 10%.


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    Titel :

    Small Bore Diesel Engine Combustion Concept


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Nishida, Kentaro (Autor:in) / Hasegawa, Ryo (Autor:in) / Ishiyama, Shinobu (Autor:in) / Ogawa, Takashi (Autor:in) / Hashizume, Takeshi (Autor:in)

    Kongress:

    SAE 2015 World Congress & Exhibition ; 2015



    Erscheinungsdatum :

    2015-04-14




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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