Stringent emission standards are driving the development of diesel-fuel injection concepts to mitigate in-cylinder formation of particulates. While research has demonstrated significant reduction in particulate formation using micro-orifice technology, implementation requires development of industrial processes to fabricate micro-orifices with diameters as low as 50 μm and with large length-to-diameter ratios. This paper reviews the different processes being pursued to fabricate micro-orifices and the advanced techniques applied to characterize the performance of micro-orifices. The latter include the use of phase-contrast x-ray imaging of electroless nickel-plated micro-orifices and laser imaging of fuel sprays at elevated pressures. The experimental results demonstrate an industrially viable process to create small uniform orifices that improve spray formation for fuel injection.


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    Titel :

    Fabrication and Characterization of Micro-Orifices for Diesel Fuel Injectors


    Weitere Titelangaben:

    Sae Int. J. Fuels Lubr
    Sae International Journal of Fuels and Lubricants


    Beteiligte:
    El-Hannouny, Essam (Autor:in) / Hamady, Fakhri (Autor:in) / Fenske, George (Autor:in) / Wang, Jin (Autor:in) / Woodford, John (Autor:in) / Schaefer, Ronald (Autor:in)

    Kongress:

    2008 SAE International Powertrains, Fuels and Lubricants Congress ; 2008



    Erscheinungsdatum :

    23.06.2008


    Format / Umfang :

    10 pages




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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