Engine valves must operate in engines with very low failure rates. Long-term durability testing is expensive. This cost could be reduced by running only a final successful proof test, provided adequate data existed to demonstrate that potential life and failure modes have been identified and eliminated by short-term tests and analysis.This approach was applied to a 1983 DDA Model 4-53 engine valve. The results are used to estimate valve life and, further, to estimate the effects of tolerance variations on valve life.The techniques used to determine valve temperatures and strains at nominal and unusual operating conditions in firing engines are presented. The experimental study shows that combustion strains and closing strains are caused by two different loading conditions which affect different portions of the valve head, and also shows how these loads vary with their governing parameters. The theoretical basis for these observations and trends is also presented.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Measurement of Valve Temperatures and Strain in a Firing Engine


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    SAE International Congress and Exposition ; 1986



    Erscheinungsdatum :

    01.02.1986




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Measurements of valve temperatures and strain in a firing engine

    Worthen,R.P. / Rauen,D.G. / Eaton,Engineering and Research Center,US | Kraftfahrwesen | 1986


    Valve parameters measured in firing engine

    Eaton,US | Kraftfahrwesen | 1986



    Research on Measurement and Simulation Technology of Valve Behavior during Engine Firing

    Oike, K. / Dan, K. / Society of Automotive Engineers | British Library Conference Proceedings | 2011


    Vacuum compression firing valve

    LEE HYE IN | Europäisches Patentamt | 2024

    Freier Zugriff