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    Analysis of Hydrocarbon Emissions Mechanisms in a Direct Injection Spark-Ignition Engine

    Analysis of Hydrocarbon Emissions Mechanisms in a Direct Injection Spark-Ignition Engine


    The direct injection spark-ignition engine is the only internal combustion engine with the potential to equal the efficiency of the diesel and to tolerate a wide range of fuel types and fuel qualities without deterioration of performance. However, this engine has low combustion efficiency and excessive hydrocarbon emissions when operating at light load. In this paper, potential sources of hydrocarbon emissions during light load operation are postulated and analyzed.The placement of fuel away from the primary combustion process in conjunction with a lack of secondary burnup are isolated as important hydrocarbon emissions mechanisms. Analyses show that increasing cylinder gas temperatures can improve secondary burnup of fuel which would reduce hydrocarbon emissions. Practical means to achieve this include higher compression ratio and use of ceramic parts in the combustion chamber.

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    Titel :

    Analysis of Hydrocarbon Emissions Mechanisms in a Direct Injection Spark-Ignition Engine

    Weitere Titelangaben:

    Sae Technical Papers

    Beteiligte:
    Giovanetti, Anthony J. (Autor:in) / Fort, Edward F. (Autor:in) / Ekchian, Jack A. (Autor:in) / Heywood, John B. (Autor:in)
    Kongress:

    SAE International Congress and Exposition ; 1983

    Erschienen in:

    Sae Technical Paper Series

    Erscheinungsdatum :

    1983-02-01

    ISSN :

    2688-3627 , 0148-7191

    DOI :

    https://doi.org/10.4271/830587

    Medientyp :

    Aufsatz (Konferenz)

    Format :

    Print

    Sprache :

    Englisch

    Schlagwörter :

    Combustion and combustion processes , Combustion chambers , Engine cylinders , Hydrocarbons , Spark ignition engines

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