Two vehicle tests to determine effect of leaded and unleaded gasoline on exhaust emissions were carried out; first test involved 122 cars without exhaust control systems and other 36 cars with systems; hydrocarbon exhaust emissions of leaded and unleaded cars increased during initial period of mileage accumulation and leveled out as equilibrium was reached; average hydrocarbon emission levels of leaded cars were higher than those of unleaded with difference or net lead effect amounting to 7% in both tests; no significant differences in carbon monoxide or nitrogen oxide emission levels were observed; photochemical reactivity levels were essentially same; results of study of effect of mileage accumulation conditions. (17544)


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    Titel :

    Effect of combustion chamber deposits and driving conditions on vehicle exhaust emissions


    Weitere Titelangaben:

    SAE Paper


    Beteiligte:
    Pahnke, A.J. (Autor:in) / Conte, J.F. (Autor:in)

    Kongress:

    SAE Meeting ; 1969 Exhaust gases


    Erschienen in:

    Erscheinungsdatum :

    1969


    Format / Umfang :

    24 pages


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Effect of Combustion Chamber Deposits and Driving Conditions on Vehicle Exhaust Emissions

    Pahnke, Alden J. / Conte, James F. | SAE Technical Papers | 1969



    Influence of combustion chamber deposits on vehicle performance and tailpipe emissions

    Barnes,J.R. / Stephenson,T. / Shell Research,GB | Kraftfahrwesen | 1996


    Influence of Combustion Chamber Deposits on Vehicle Performance and Tailpipe Emissions

    Barnes, Julian R. / Stephenson, Trevor | SAE Technical Papers | 1996


    Effects of combustion chamber deposits on tailpipe emissions

    Bitting W.H. / Firmstone,G.P. / Keller,C.T. et al. | Kraftfahrwesen | 1994