This paper represents the results of an extensive testing programme conducted at the University of Bath on behalf of the Ford Motor Company on a prototype 1.8 litre direct injection (DI) diesel engine. The testing compared the effects of a standard wastegate controlled fixed geometry turbocharger (FGT) with a variable geometry turbocharger (VGT) at discrete part-load operating points. The object being to evaluate the NOx reduction potential at these points due to the VGT and varying exhaust gas recirculation schedules. A reduction in NOx of up to 45 percent was observed without compromising fuel consumption or smoke levels.


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    Title :

    Comparison of variable geometry turbocharging (VGT) over conventional wastegated machines to achieve lower emissions


    Additional title:

    Abgasturbolader mit variabler Geometrie im Vergleich mit konventionellen Bypass-Aggregaten zur Verminderung der Emissionen


    Contributors:
    Hawley, J.G. (author) / Wallace, F.J. (author) / Pease, A.C. (author) / Cox, A. (author) / Horrocks, R.W. (author) / Bird, G.L. (author)


    Publication date :

    1997


    Size :

    15 Seiten, 8 Bilder, 4 Tabellen, 3 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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