Cycle-to-cycle variation of pressure is a common problem in all spark-ignition engines. To examine the suspected influence of mixture-motion on this variation, a study was performed in a constant volume cylindrical bomb in which a jet of propane-air mixture was directed at the initial flame kernel. The rate of pressure rise of the jet-influenced combustion was compared to the rate for combustion in a quiescent mixture. The flame area, obtained using a spark schlieren photographic technique, and the calculated combustion rate were correlated with the pressure rate.The major results were: the rate of pressure rise increased approximately linearly with mixture jet velocity; and the width of the mixture-jet had an effect on the rate of pressure rise. A jet profile width slightly greather than the spark-gap produced the highest rate of pressure rise.


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    Titel :

    Mixture Motion - Its Effect on Pressure Rise in a Combustion Bomb: A New Look at Cyclic Variation


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Cole, David E. (Autor:in) / Mirsky, William (Autor:in)

    Kongress:

    National Fuels and Lubricants and Transportation Meetings ; 1968



    Erscheinungsdatum :

    01.02.1968




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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