A slightly modified thermodynamic cycle for a spark ignition engine is proposed as a means of improving cold starting, warm-up driveability and fuel economy. Tests were conducted on a single cylinder research engine using a modified camshaft to implement the cycle. Substantial improvements in BSFC were obtained not only during the warm-up period but also at normal steady-state temperatures. NOx, CO and UBHC were simultaneously reduced as well.


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    Titel :

    A Method of Assisting Cold-Starts, Improving Fuel Economy and Reducing Emissions of Engines at Cold Temperatures


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Gardiner, D. P. (Autor:in) / Bardon, M. F. (Autor:in) / Rao, V. K. (Autor:in)

    Kongress:

    1989 Subzero Engineering Conditions Conference and Exposition ; 1989



    Erscheinungsdatum :

    01.02.1989




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





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