Review of the theories, observations, and trends presented in Part I of this set of papers leads to the projection of certain aspects of injection sprays, mixture preparation, and combustion which may be designed to enhance diesel engine efficiency and reduce unwanted emissions. The basic concept is that control of the size, distribution and time of introduction of fuel droplets will result in a predictable optimized combustion event. Burning rate is controlled by droplet size and not by injection rate.The results of the ideal combustion and mixture preparation models are compared with experimental data and show good correlation. The preference for high-pressure, short-duration, non-wall-wetting and uniformly distributed fuel sprays coupled with controlled fast diffusion burning is clearly evident. With high injection rates, it may be desirable to trade swirl rate for additional combustion air. Suggestions are made for practical means for achieving the results projected by the optimized model. Experimental results are presented to confirm the idealized model.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Factors That Affect BSFC and Emissions for Diesel Engines: Part II Experimental Confirmation of Concepts Presented in Part I


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Beck, N. John (Autor:in) / Uyehara, Otto A. (Autor:in)

    Kongress:

    SAE International Congress and Exposition ; 1987



    Erscheinungsdatum :

    01.02.1987




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch







    Improving NOx versus BSFC with EUI 200 using EGR and pilot injection for heavy-duty diesel engines

    Tullis,S. / Greeves,G. / Lucas Diesel Systems,GB | Kraftfahrwesen | 1996


    Design Factors That Affect Diesel Emissions

    Wulfhorst, David E. / Broering, Louis C. / Bascom, Roger C. | SAE Technical Papers | 1971