The fluid dynamic efficiency of two different four-valve high-performance engine heads has been compared both in terms of global mass flow rate and in terms of local velocity distribution around the valve curtain, by means of LDA measurements. The two engine heads have the same bore and valve diameters, but a slightly different valve position and valve stem inclination. Results clearly show that valve-wall distance is a critical factor for head permeability and that even marginal variations in valve position and inclination lead to appreciable differences in flow pattern and total flow rate.


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    Titel :

    LDA Investigation on Valve - Wall and Valve - Valve Flow Interaction in High-Performance 4-Valve I.C.E


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Amelio, Mario (Autor:in) / Bova, Sergio (Autor:in)

    Kongress:

    SAE 2001 World Congress ; 2001



    Erscheinungsdatum :

    05.03.2001




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    LDA Investigation on Valve - Wall and Valve - Valve Flow Interaction in High-Performance 4-Valve I.C.E

    Bova, S. / Amelio, M. / Society of Automotive Engineers | British Library Conference Proceedings | 2001


    Influence of Valve-Wall Distance on the Intake Flow in High Performance I.C.E

    Algieri, Angelo / Bova, Sergio | SAE Technical Papers | 2004


    2004-01-1922 Influence of Valve-Wall Distance on the Intake Flow in High Performance I.C.E

    Algieri, A. / Bova, S. / Society of Automotive Engineers | British Library Conference Proceedings | 2004



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