At the end of November 2011, the new M270/M274 4-cylinder engine family for transverse and longitudinal installation and with piezo direct injection and stratifiedcharge operation was launched for the first time. Like the 6-cylinder and 8-cylinder engines already in the marketplace, this technology module represents ongoing efforts to reduce CO2 emissions via the Mercedes-Benz BlueDIRECT combustion method. In addition to developing a range of further fuel-conserving measures and technologies as well as expanding the engine family to include an AMG variant that boasts the highest output in the 4-cylinder segment, engineers leveraged the M270/M274 engine hardware to continue in the Mercedes-Benz tradition of developing environmentally-friendly natural gas engines as well as integrated another CO2-reducing module. During development, the objective defined was to realize the compressed natural gas (CNG) engines in a costeffective manner by focusing on the modular component system of the base engines and coordinating the underlying technologies into monovalent and bivalent drivetrains using the same starting point as far as possible to meet all the various requirements. The CNG engines, now marketed under the new name NGD (natural gas drive), currently produce more power and torque in the passenger car segment while raising the bar when it comes to CO2 emissions with respect to the weight of the vehicle its rated performance.


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    Titel :

    The new Mercedes-Benz CNG engine generation as part of the BlueDIRECT engine family M270/M274


    Beteiligte:
    Wunderlich, Klaus (Autor:in) / Merdes, Norbert (Autor:in) / Waltner, Anton (Autor:in) / Vent, Guido (Autor:in) / Kreitmann, Fritz (Autor:in) / Weller, Ralph (Autor:in)


    Erscheinungsdatum :

    2013


    Format / Umfang :

    17 Seiten, 14 Bilder, 5 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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