The transient cone angle of a pressure swirl spray from an injector for gasoline direct injection engines was measured from 2D Mie scattering images. Iso-octane was used as the fluid that was delivered at room temperature for two different static pressures, 5MPa and 8.5MPa. The iso-octane was injected into a chamber at room temperature and ambient pressure. After a rapid initial increase, the cone angle oscillates before stabilizing to a steady-state value very close to the nominal cone angle. The period of the oscillation was found to correlate well with oscillations measured in the fuel line pressure.


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    Title :

    Correlation of Spray Cone Angle and Fuel Line Pressure in a Pressure-Swirl Injector Spray


    Additional title:

    Sae Technical Papers


    Contributors:
    Rico, José (author) / Sick, Volker (author)

    Conference:

    2004 SAE Fuels & Lubricants Meeting & Exhibition ; 2004



    Publication date :

    2004-06-08




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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