The main components of vehicle diesel engine emissions are nitrogen oxides and particulates. The emissions concept adopted for pressure-wave supercharging with controlled EGR and particulate trap, focuses on both components. In conjunction with electronic EGR-control the spontaneous response of the supercharger achieves minimum deviations from optimum air excess values, even during transients. In the US city cycle an NOx reduction to 35 % of the reference emission, without sacrificing fuel economy was established. Featuring a particulate trap arranged between engine and supercharger this system increases the regeneration probability and as a result of the improved supercharsinp, efficiency achieves satisfactory transient behavior, Catalytic coating of the rotor constitutes an additional means of reducing emissions.


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    Title :

    Emissions Concept for Vehicle Diesel Engine Supercharged with COMPREX®


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE International Congress and Exposition ; 1988



    Publication date :

    1988-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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