Conventional two-stroke spark-ignition (SI) engines have difficulty meeting the ignition requirements of lean fuel-air mixtures and high compression ratios, due to their breaker-operated, magneto-coil ignition systems. In the present work, a breakerless, high-energy electronic ignition system was developed and tested with and without a platinum-tipped-electrode spark plug. The high-energy ignition system showed an improved lean-burn capability at high compression ratios relative to the conventional ignition system. At a high compression ratio of 9:1 with lean fuel-air mixtures, the maximum percentage improvement in the brake thermal efficiency was about 16.5% at 2.7 kW and 3000 rpm. Cylinder peak pressures were higher, ignition delay was lower, and combustion duration was shorter at both normal and high compression ratios. Combustion stability as measured by the coefficient of variation in peak cylinder pressure was also considerably improved with the high-energy ignition system.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Ignition Enhancement in a Two-Stroke Spark-Ignition Engine


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Small Engine Technology Conference & Exposition ; 1995



    Publication date :

    1995-09-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Ignition enhancement in a two-stroke spark-ignition engine

    Manivannan,P.V. / Poola,R.B. / Ramesh,A. et al. | Automotive engineering | 1995


    Turbocharged spark ignition two stroke engine

    Hardman,K. / Univ.of Illinois,Chicago,US | Automotive engineering | 1994


    Turbocharged Spark Ignition Two Stroke Engine

    Hardman, K. / Society of Automotive Engineers | British Library Conference Proceedings | 1994


    Turbocharged Spark Ignition Two Stroke Engine

    Hardman, Ken | SAE Technical Papers | 1994


    Performance Assessment of Extended Stroke Spark Ignition Engine

    Anandhan, Muthu / Cheng, Wai K. | SAE Technical Papers | 2018