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    The Reduction of Soot Emissions by the Use of a Piston with Micro-Chambers on a Medium Duty Diesel Engine

    The Reduction of Soot Emissions by the Use of a Piston with Micro-Chambers on a Medium Duty Diesel Engine


    The performance and emissions of a medium duty, turbocharged and aftercooled diesel engine fitted with both standard pistons and experimental pistons have been compared. The experimental pistons incorporated micro-chambers equi-spaced around the periphery of the bowl, connected to the bowl by drilled passages.The tests were run using an “A-B-A” design at three engine speeds over the load range. The paper will report that the experimental pistons have a potential for significant soot reduction without an increase in NOx emissions and with similar fuel consumption.Based on an analysis of the jet flow into and out of the micro-chambers, a possible mechanism for the soot reduction is proposed. The mechanism has been investigated further using VECTIS computational fluid dynamics (CFD) analysis.

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    Titel :

    The Reduction of Soot Emissions by the Use of a Piston with Micro-Chambers on a Medium Duty Diesel Engine

    Weitere Titelangaben:

    Sae Technical Papers

    Beteiligte:
    Rogers, B. J. (Autor:in) / Such, C. H. (Autor:in) / Li, G. (Autor:in)
    Kongress:

    Spring Fuels & Lubricants Meeting & Exhibition ; 2002

    Erschienen in:

    Sae Technical Paper Series

    Erscheinungsdatum :

    2002-05-06

    ISSN :

    2688-3627 , 0148-7191

    DOI :

    https://doi.org/10.4271/2002-01-1682

    Medientyp :

    Aufsatz (Konferenz)

    Format :

    Print

    Sprache :

    Englisch

    Schlagwörter :

    Nitrogen oxides , Pistons , Computational fluid dynamics , Fuel consumption

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