Beside the traditional prediction of stresses and verification by mechanical testing the optimization of cylinder liner bore distortion is one of today's most important topics in crankcase structure development. Low bore distortion opens up potentials for optimizing the piston group. As the piston rings achieve better sealing characteristics in a low deformation cylinder liner, oil consumption and blow-by are reduced. For unchanged oil consumption and blow-by demands, engine friction and subsequently, fuel consumption could be reduced by decreasing the pre-tension of the piston rings. From the acoustical point of view an optimization of piston-slap noise is often based on an optimized bore distortion behavior.Apart from basics to the behavior of liner bore distortion the paper presents advanced analytical and empirical methods for detailed prediction, verification and optimization of bore distortion taking into account the effective engine operation conditions. In that matter design features and other important influence parameters for bore distortion will be discussed and evaluated.


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    Titel :

    Analytical and Empirical Methods for Optimization of Cylinder Liner Bore Distortion


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Koch, Franz (Autor:in) / Maassen, Franz (Autor:in) / Dohmen, Jürgen (Autor:in) / Schwaderlapp, Markus (Autor:in) / Ortjohann, Timo (Autor:in)

    Kongress:

    SAE 2001 World Congress ; 2001



    Erscheinungsdatum :

    05.03.2001




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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