A natural gas and diesel dual-fuel turbocharged compression ignition (CI) engine is developed to reduce emissions of a heavy-duty diesel engine. The compressed natural gas (CNG) pressure regulator is specially designed to feed back the boost pressure to simplify the fuel metering system. The natural gas bypass improves the engine response to acceleration. The modes of diesel injection are set according to the engine operating conditions. The application of honeycomb mixers changes the flowrate shape of natural gas and reduces hydrocarbon (HC) emission under low-load and low-speed conditions. The cylinder pressures of a CI engine fuelled with diesel and dual fuel are analysed. The introduction of natural gas makes the ignition delay change with engine load. Under the same operating conditions, the emissions of smoke and NO(x) from the dual-fuel engine are both reduced. The HC and CO emissions for the dual-fuel engine remain within the range of regulation.


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    Title :

    Development of compressed natural gas/diesel dual-fuel turbocharged compression ignition engine


    Contributors:
    Liu, Shenghua (author) / Wang, Ziyan (author) / Ren, Jiang (author)


    Publication date :

    2003


    Size :

    7 Seiten, 9 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Development of compressed natural gas/diesel dual-fuel turbocharged compression ignition engine

    Shenghua,L. / Ziyan,W. / Jiang,R. et al. | Automotive engineering | 2003



    Development of compressed natural gas/diesel dual-fuel turbocharged compression ignition engine

    Shenghua, Liu / Ziyan, Wang / Jiang, Ren | SAGE Publications | 2003


    Combustion characteristics of compressed natural gas/diesel dual-fuel turbocharged compressed ignition engine

    Shenghua,L. / Longbao,Z. / Ziyan,W. et al. | Automotive engineering | 2003


    Combustion characteristics of compressed natural gas/diesel dual-fuel turbocharged compressed ignition engine

    Shenghua, Liu / Longbao, Zhou / Ziyan, Wang et al. | SAGE Publications | 2003