In recent years a new combustion phenomenon called Low-Speed Pre-Ignition (LSPI) occurred, which is the most important limiting factor to exploit further downsizing potential due to the associated peak pressures and thus the huge damage potential. In the past there were already several triggers for pre-ignitions identified, whereat engine oil seems to have an important influence. Other studies have reported that detached oil droplets from the piston crevice volume lead to auto-ignition prior to spark ignition. However, wall wetting and subsequently oil dilution and changes in the oil properties by impinging fuel on the cylinder wall seem to have a significant influence in terms of accumulation and detachment of oil-fuel droplets in the combustion chamber. For this reason, the influence of test fuels with different volatility were investigated in order to verify their influence on wall wetting, detachment and pre-ignition tendency. During these investigations also different ethanol fuels were investigated to analyse the influence of various alcohol blends on pre-ignitions.


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    Titel :

    Influence of Different Fuel Properties and Gasoline - Ethanol Blends on Low-Speed Pre-Ignition in Turbocharged Direct Injection Spark Ignition Engines


    Weitere Titelangaben:

    Sae Int. J. Engines


    Beteiligte:
    Geringer, Bernhard (Autor:in) / Moss, James (Autor:in) / Williams, John (Autor:in) / Mayer, Mattias (Autor:in) / Hofmann, Peter (Autor:in)

    Kongress:

    SAE 2016 World Congress and Exhibition ; 2016


    Erschienen in:

    Erscheinungsdatum :

    05.04.2016


    Format / Umfang :

    8 pages




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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    Mayer, Mattias / Hofmann, Peter / Geringer, Bernhard et al. | British Library Conference Proceedings | 2016


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    Tomazic, Dean / Kleeberg, Henning / Haenel, Patrick et al. | SAE Technical Papers | 2017


    Influence of Ethanol Blends on Low Speed Pre-Ignition in Turbocharged, Direct-Injection Gasoline Engines

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    Influence of Different Oil Properties on Low-Speed Pre-Ignition in Turbocharged Direct Injection Spark Ignition Engines

    Mayer, Mattias / Hofmann, Peter / Geringer, Bernhard et al. | British Library Conference Proceedings | 2016


    Influence of Different Oil Properties on Low-Speed Pre-Ignition in Turbocharged Direct Injection Spark Ignition Engines

    Geringer, Bernhard / Moss, James / Williams, John et al. | SAE Technical Papers | 2016