A loop-scavenged, two-stroke, spark-assisted DI diesel engine was developed by modifying an outboard marine gasoline engine to operate on diesel fuel with high fuel efficiency similar to a diesel engine, yet retain the two-stroke engine advantages of low cost, light weight, and high power-to-weight ratio.Engine modification was concentrated in the area of the combustion system, including transfer port design to generate air swirl in the cylinder, and combustion chamber design to generate air squish and turbulence. Bore and stroke (84 × 72 mm) remained the same as those of the base engine. The experimental engine used the production engine's piston, crankshaft, connecting rod, bearings, and cylinder block.The transfer port design was optimized using a flow test bench for best swirl and air flow pattern with a simple flow visualization technique. The best combustion chamber geometry, compression ratio, and fuel injection spray pattern were determined through engine experiments.


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    Titel :

    Combustion System Development of a Two-Stroke, Spark-Assisted DI Diesel Engine


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Ariga, Susumu (Autor:in) / Matsushita, Yukio (Autor:in)

    Kongress:

    SAE International Congress and Exposition ; 1988



    Erscheinungsdatum :

    01.02.1988




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





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