A dual fuel natural gas diesel engine suffers from remarkably lower thermal efficiency and higher THC, CO emissions at lower load because of its lower burned mass fraction caused by the lean pre-mixture. To overcome this inevitable disadvantage at lower load, two methods of reducing the number of operating cylinders were examined. One method was to use the two cylinders operation while the second one was to use the quasi-two cylinders operation. As a result, it was found that the unburned hydrocarbons and CO emissions could be favorably reduced with the improvement of thermal efficiency by reducing the number of cylinders to half for a dual fuel natural gas diesel engine. Moreover, it was also found that the quasi-two cylinders operation could improve the torque fluctuation more compared to the two cylinders operation.


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    Titel :

    Improvement of Combustion in a Dual Fuel Natural Gas Engine with Half the Number of Cylinders


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Kusaka, Jin (Autor:in) / Mizushima, Norifumi (Autor:in) / Ito, Shingo (Autor:in) / Daisho, Yasuhiro (Autor:in)

    Kongress:

    2003 JSAE/SAE International Spring Fuels and Lubricants Meeting ; 2003



    Erscheinungsdatum :

    19.05.2003




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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