An axially stratified, fuel-air mixture can be produced in an engine cylinder using inlet-port fuel injection and air swirl. Past work has shown that stratification decreased as fuel volatility decreased. This paper shows that the reason for this relationship is the entry of fuel droplets into the cylinder prior to the start of fuel injection. This phenomenon, presumably caused by wall wetting in the inlet port, increased the mixing of the fuel and air which reduced the stratification. Also, it was shown that (a) droplets were not uniformly distributed throughout the cylinder, (b) droplets were completely vaporized prior to ignition, and (c) the largest droplets entered the cylinder under low inlet flow conditions.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Fuel Droplets inside the Cylinder of a Spark Ignition Engine with Axial Stratification


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE International Congress and Exposition ; 1982



    Publication date :

    1982-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Fuel Droplets inside the Cylinder of a Spark Ignition Engine with Axial Stratification

    Peters,B.D. / General Motors Res.Lab.,US | Automotive engineering | 1982


    Fuel Droplets Inside a Firing Spark-Ignition Engine

    Taylor, A.M.K.P. / Vannobel, F. / Whitelaw, J.H. et al. | SAE Technical Papers | 1994



    Development of a fuel stratification spark ignition engine

    Li,Y. / Zhao,H. / Leach,B. et al. | Automotive engineering | 2005


    In-cylinder measurements of fuel stratification in a twin-spark three-valve spark ignition engine

    Li,Y. / Zhao,H. / Leach,B. et al. | Automotive engineering | 2004