Two optical techniques together with a CFD simulation have been used to study the interaction of intake airflow with the injected fuel spray in a motored direct injection gasoline engine. The combustion chamber was of a pent-roof construction with the side-mounted injector located low down between the inlet valves injecting at a 54° angle to the cylinder axis. The two-dimensional piston bowl shape allowed optical access for the Mie scatter technique to be used to investigate the liquid fuel behaviour in the central axial plane of the cylinder lying midway between the two inlet valves and passing through the centre line of the injector nozzle. A second set of images was obtained using backlighting, this time looking through the glass cylinder liner directly towards the injector. The in-cylinder simulation was run using the VECTIS software. Measurements and simulations were conducted for a range of early SOI timings between 20° and 80° ATDC. The results demonstrated clearly that the incoming airflow tended to flatten the jet and constrain it towards its centreline.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Airflow and Fuel Spray Interaction in a Gasoline DI Engine


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Li, Gang (Autor:in) / Gold, Martin (Autor:in) / Heikal, Morgan (Autor:in) / Alexander, Paul (Autor:in) / Begg, Steven (Autor:in)

    Kongress:

    2005 SAE Brasil Fuels & Lubricants Meeting ; 2005



    Erscheinungsdatum :

    2005-05-11




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Airflow and fuel spray interaction in a gasoline direct injection engine

    Alexander,P. / Begg,S. / Heikal,M. et al. | Kraftfahrwesen | 2005


    Diffusive Combustion of Fuel Spray in a DI Gasoline Engine

    Luo, Qingguo / Xie, Shangyu / Wang, Shuyi | SAE Technical Papers | 2001


    Acoustical Diagnostics of Spray-Airflow Interaction in a Modern Aero Engine Combustor Chamber

    Antoshkiv, O. / German Society for Aeronautics and Astronautics | British Library Conference Proceedings | 2009



    Fuel spray simulation of slit nozzle injector for direct-injection gasoline engine

    Hayakawa,M. / Takada,S. / Yonesige,K. et al. | Kraftfahrwesen | 2002