Improved atomization is important in fuel injection applications since atomization influences fuel-air mixing and vaporization rates. The present paper explores the use of low pressure gas/air injection and methods to achieve a dispersed two-phase flow to enhance the atomization process. Gas-driven twin-fluid atomization has been achieved by combining X-ray lithographic/micro-machining technology to mechanically disperse a driving gas into a liquid to be sprayed. This technique forces the gas through a designed pattern of micron sized holes thereby yielding a field of micro-bubbles immediately upstream of the < I mm. diameter discharge orifice. Precise control of both uniformity of hole diameter and inter-hole spacing is critical to producing a well dispersed bubbly flow. The results show that the method of gas injection influences the liquid breakup process. Results are given for steady-flow atomization with low pressure injection into ambient air.


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    Titel :

    Gas Efficient Liquid Atomization Using Micro-Machined Spray Nozzles


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Snyder, H. E. (Autor:in) / Reitz, Rolf D. (Autor:in)

    Kongress:

    International Congress & Exposition ; 1996



    Erscheinungsdatum :

    01.02.1996




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Gas efficient liquid atomization using micro-machined spray nozzles

    Snyder,H.E. / Reitz,R.D. / Univ.of Wisconsin-Madison,US | Kraftfahrwesen | 1996



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