In this investigation, worn valve seats and inserts have been examined to obtain a fundamental understanding of the primary wear mechanisms. Seats and inserts from a wide variety of engines were studied using optical and electron microscopy. The recessed region on seats and inserts displayed a common feature which can be described as a series of ridges and valleys formed circumferentially around the seat axis. These ridges and valleys were found to be due to either a relatively severe gouging process or to a milder deformation and wearing process. These processes were related to assembly and product geometry factors which caused misalignment between the seats and inserts.


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    Titel :

    Engine Valve Seat and Insert Wear


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Barber, G. C. (Autor:in) / Larson, J. M. (Autor:in) / van Diesel, R. (Autor:in) / Narasimhan, S. L. (Autor:in)

    Kongress:

    1989 SAE International Fall Fuels and Lubricants Meeting and Exhibition ; 1989



    Erscheinungsdatum :

    1989-09-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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