In order to improve the drawbacks of current schnürle-type two-stroke gasoline engine, a reverse uniflow-type two-stroke direct injection engine was designed and developed. The scavenging port and piston geometry combined with a direct injection system were designed to realize both stratified charge combustion in light to medium load and higher power output in high load range. In-cylinder gas motion and spray behavior were analyzed and optimized by numerical simulation. The experimental result shows high BMEP in WOT operation achieved by a high delivery ratio, high trapping efficiency and good scavenging. In light to medium load a stable combustion was achieved by good stratified combustion utilizing a spray and wall guided mixture preparation.


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    Title :

    Development and Evaluation of a Reverse Uniflow-Type Two-Stroke Gasoline DI Engine


    Additional title:

    Sae Technical Papers


    Contributors:
    Takimoto, H. (author) / Kikuchi, K. (author) / Morikawa, K. (author) / Naito, T. (author) / Moriyoshi, Y. (author)

    Conference:

    Small Engine Technology Conference & Exposition ; 2001



    Publication date :

    2001-12-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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