Flow and flame structure visualization and modeling were performed to clarify the characteristics of bulk flow, turbulence and mixing in a four-valve engine to adopt the lean combustion concept named “Barrel-Stratification” to the larger displacement center-spark four-valve engine. It was found that the partitions provided in the intake port and the tumble-control piston with a curved-top configuration were effective to enhance the lean combustion of such an engine. By these methods, the fuel distribution in the intake port and the in-cylinder bulk flow structure are optimized, so that the relatively rich mixture zone is arranged around the spark plug. The tumble-control piston also contributes to optimize the flow field structure after the distortion of tumble and to enable stable lean combustion.


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    Titel :

    Optimization of In-Cylinder Flow and Mixing for a Center-Spark Four-Valve Engine Employing the Concept of Barrel-Stratification


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Ando, H. (Autor:in) / Takemura, J. (Autor:in) / Kuwahara, K. (Autor:in) / Omori, S. (Autor:in) / Kume, T. (Autor:in) / Watanabe, T. (Autor:in)

    Kongress:

    International Congress & Exposition ; 1994



    Erscheinungsdatum :

    01.03.1994




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    Optimization of In-Cylinder Flow and Mixing for a Center-Spark Four-Valve Engine Employing the Concept of Barrel-Stratification

    Kuwahara, K. / Watanabe, T. / Takemura, J. et al. | British Library Conference Proceedings | 1994


    Optimization of In-Cylinder Flow and Mixing for the Center Spark Four Valve Lean Burn Engine Employing the Concept of Barrel-Stratification

    Watanabe, T. / Kuwahara, K. / Kitada, T. et al. | British Library Conference Proceedings | 1993


    Development of Four-valve, Center Spark-plug MVV Engine with Barrel-Stratified Charge Lean-burn Concept

    Kume, T. / Iwamoto, Y. / Hirako, O. et al. | British Library Conference Proceedings | 1993