In this paper, the dimensioning of ceramic components is demonstrated for a valve plate of Si3N4 which is used in high-pressure pumps for Common-Rail injection systems. FE (Finite Elements) calculations prior to lifetime considerations are done in order to investigate the stress states during cyclic loading. For calculations of failure probabilities and lifetimes the FE-post processor STAU is used. 4-point-bending strengths as well as results from valve plate tests are presented. Static and cyclic subcritical crack growth parameters are investigated in bending techniques as well. Three different material suppliers of commercial Si3N4 are investigated.


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    Titel :

    Reliability of ceramic valve plates for common-rail injection pumps


    Weitere Titelangaben:

    Zuverlässigkeit von keramischen Ventilplatten für mechanisch gesteuerte Kraftstoff-Einspritzpumpen


    Beteiligte:
    Speicher, R. (Autor:in) / Schneider, G.A. (Autor:in) / Dreßler, W. (Autor:in) / Lindemann, G. (Autor:in) / Böder, H. (Autor:in) / Knoblauch, V. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2000


    Format / Umfang :

    10 Seiten, 8 Bilder, 2 Tabellen, 8 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch