A cyclic variation in total particle number concentration was observed while making routine exhaust emission measurements. Many dilution and engine operating conditions were examined and, by sequentially shutting down individual cylinders, the problem was traced to cylinder 2. The engine was disassembled and piston 2's oil control ring was found to be fractured. Replacement of the ring eliminated the particle concentration fluctuation. This paper presents the results of experimental measurements made to determine the cause of the irregular emissions.


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    Titel :

    Nanoparticle measurements used to detect an engine oil control ring failure


    Beteiligte:
    Swanson, J (Autor:in) / Ragatz, A (Autor:in) / Watts, W (Autor:in) / Kittelson, D (Autor:in) / Winsor, R (Autor:in)


    Erscheinungsdatum :

    2009-08-01


    Format / Umfang :

    6 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Nanoparticle measurements used to detect an engine oil control ring failure

    Swanson,J. / Ragatz,A. / Watts,W. et al. | Kraftfahrwesen | 2009


    Nanoparticle measurements used to detect an engine oil control ring failure

    Swanson,J. / Ragatz,A. / Watts,W. et al. | Kraftfahrwesen | 2009




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