This paper reports an effort to measure particulate emissions from a modern light duty CIDI engine equipped with a common-rail fuel injection system, a closed loop EGR system and a state-of-the-art aftertreatment system. Particulate emissions both upstream and downstream of the catalyst were measured using an SMPS system and a TEOM while operating the engine at various steady-state conditions. The measurements upstream of the catalyst show that the particulate emissions are strongly dependent on the engine speed, load and EGR conditions. The measurements downstream of the catalyst show the effectiveness of the catalyst in reducing particulate mass emissions by 20-80%, with reductions in particulate mean diameters averaging about 10%. The trends observed are discussed in terms of previously established particulate formation and destruction mechanisms.


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    Title :

    Particulate Emissions From a Modern Light Duty CIDI Engine


    Additional title:

    Sae Technical Papers


    Contributors:
    Vazquez, F. M. (author) / Cole, R. (author) / Sekar, R. (author) / Gupta, S. (author)

    Conference:

    SAE Powertrain & Fluid Systems Conference & Exhibition ; 2002



    Publication date :

    2002-06-03




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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