This paper will focus on fuel flow analysis in nozzles, in particular, in the injection hole, a key component of Fuel Injection Equipment(FIE). Optimum controlled flow in the hole improves flow efficiency and atomization. To meet the emission regulations which will be introduced from the end of '90's to the 21st century, Diesel Engines require FIE to produce higher injection pressure which creates better atomization and higher utilization of air. But higher injection pressure results in increased pump driving torque, larger pump size and higher cost. We have studied the improvement in fuel flow characteristics of the nozzle, using an enlarged flow model and the theoretical analysis method. As a result, we have found that the cavitation, which occurs at the inlet of the hole, is affected by the configuration of the sac hole and injection hole. And, furthermore, the cavitation has a direct effect on the contraction and its recovery flow. The optimum designed nozzle will be an effective measure to create a fine spray under lower injection pressure, which will be cost competitive in the market and help engines meet regulations.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Flow Analysis in Nozzle Hole in Consideration of Cavitation


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Kano, Hiroyuki (Autor:in) / Niizuma, Keiichiro (Autor:in) / Date, Kenji (Autor:in) / Kato, Masaaki (Autor:in) / Oya, Takio (Autor:in)

    Kongress:

    International Congress & Exposition ; 1997



    Erscheinungsdatum :

    1997-02-24




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Flow analysis in nozzle hole in consideration of cavitation

    Kato,M. / Kano,H. / Date,K. et al. | Kraftfahrwesen | 1997


    Analysis of flow with cavitation in diesel nozzle hole

    Kato,M. / Kano,H. / Date,K. et al. | Kraftfahrwesen | 1997


    Analysis Of Flow With Cavitation In Diesel Nozzle Hole

    Kato, M. / Kano, H. / Date, K. et al. | British Library Conference Proceedings | 1997


    Visualization of Cavitation Inside Nozzle Hole and Injected Liquid Jet

    Matsumura, Eriko / Senda, Jiro / Inagaki, R. et al. | SAE Technical Papers | 2015