The instantaneous structure of sprays from two Direct Injection, Spark Ignition (DISI) injectors were studied within a non-motored research cylinder. In-cylinder conditions simulating injection up to 27° before top dead center (BTDC) were utilized in the characterizations. Comparisons between the two injectors highlight the impact of nozzle design on spray performance. Experiments include axial and horizontal flow visualization and PIV, illustrating the effect of in-cylinder density (with in-cylinder pressure used to control in-cylinder density) on instantaneous fuel spray structure. Fuel spray imaging experiments illustrate the effect of in-cylinder density on the initial clump of fluid and other spray development phases. In-cylinder density increases hollow cone narrowing and decreases spray penetration. PIV results show that the initial clump of fluid travels with extremely high velocities for all injection strategies. These results will aid in the selection of injection strategies during DISI engine design.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    DISI Fuel Spray Effects During Simulated Injection Timing


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Hutchison, Aaron (Autor:in) / Wicker, Ryan (Autor:in)

    Kongress:

    International Spring Fuels & Lubricants Meeting ; 2001



    Erscheinungsdatum :

    07.05.2001




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    DISI fuel spray effects during simulated injection timing

    Hutchison,A. / Wicker,R. / Univ.of Texas at El Paso,US | Kraftfahrwesen | 2001


    Improvement of center injection spray guided DISI performance

    Katashiba,H. / Honda,T. / Kawamoto,M. et al. | Kraftfahrwesen | 2006


    Improvement of Center Injection Spray Guided DISI Performance

    Katashiba, Hideaki / Kawajiri, Kazuhiko / Sumida, Mamoru et al. | SAE Technical Papers | 2006


    Investigation of Fuel Effects on Spray Atomization and Evaporation Studied for a Multi-hole DISI Injector with a Late Injection Timing

    Ammon, M. / Schmitz, I. / Wensing, M. et al. | British Library Conference Proceedings | 2011