The mixture formation characteristics in a temporally split injection diesel spray were studied through a series of measurements based on the laser absorption-scattering technique (LAS), which was developed by the authors and adopted the second harmonic (532nm) and the fourth harmonic (266 nm) of a pulsed Nd:YAG laser as the incident light, and dimethylnaphthalene (DMN) as the test fuel. By applying this technique, imaging was made of DMN sprays injected into a high-temperature (833 K) and high-pressure (4.0 MPa) constant-volume vessel by a single-hole nozzle and a common rail injection system for a direct injection (DI) diesel engine. Quantitative information of the vapour evaporation and fuel distribution was obtained, and furthermore the fuel-air mixture was characterized. The effect of injection temporal splitting on the mixture characteristics was analysed and correlated with the characteristics of NO(x) formation in a DI diesel engine.


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    Title :

    Effect of injection temporal splitting on the characteristics of fuel-air mixture formation in a common rail diesel spray


    Additional title:

    Einfluß der zeitlich aufgeteilten Einspritzung auf die Brennstoff-Luft-Gemischbildung im Dieselnebel eines Einspritzmotors mit Common-Rail-Technik


    Contributors:


    Publication date :

    2004


    Size :

    9 Seiten, 14 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English