This paper presents the results of experimental and numerical investigations on pre-ignition in a series-production turbocharged DISI engine. Previous studies led to the conclusion that pre-ignition can be triggered by auto-ignition of oil droplets generated in the combustion chamber. Analysis of more recent experiments shows that a modification of the engine operation parameters that promotes spray/lubricant interaction also increases pre-ignition frequency, while modifications that enhance the speed of chemical reactions (thereby favoring auto-ignition) have little or no influence. The experimental and numerical findings can be explained if we assume the existence of a substance (originating from lubricant/fuel interaction) that displays extremely short ignition delay times.


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    Titel :

    Premature Flame Initiation in a Turbocharged DISI Engine - Numerical and Experimental Investigations


    Weitere Titelangaben:

    Sae Int. J. Engines


    Beteiligte:
    Kubach, Heiko (Autor:in) / Magar, Max (Autor:in) / Schiessl, Robert (Autor:in) / Palaveev, Stefan (Autor:in) / Maas, Ulrich (Autor:in) / Spicher, Ulrich (Autor:in)

    Kongress:

    SAE 2013 World Congress & Exhibition ; 2013


    Erschienen in:

    Erscheinungsdatum :

    08.04.2013


    Format / Umfang :

    13 pages




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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