A system using catalytically ignited recirculated exhaust gas (EGR) has been shown to be capable of starting a heavy-duty diesel engine at temperatures as low as 31.6°C (-25°F) within one minute cranking following US Army Cold Start procedure 2-2-650. A Cummins 6-cylinder C8.3 automotive diesel engine was provided with an EGR pipe fitted with a catalytic ignitor/burner. During starting, the catalyst was kept above the activation temperature by a low power electric power supply. With this system, the unburned fuel in the EGR gas was rapidly ignited by and partially oxidized within the catalytic ignitor/burner, and then mixed with the fresh air before being inducted into the cylinders. The elevated inlet charge temperatures increased the compression temperature, thus promoting autoignition and therefore engine starting. Comparisons were made between starting attempts with and without using catalytically ignited EGR. Pilot fuel additions to the catalytic ignitor/burner on starting were also investigated and found to allow starting well below -31.6°C (-25°F).


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Diesel Engine Cold Starting with Catalytically Ignited Recirculated Exhaust Gas


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Jack Sweet, E. (Autor:in) / Zurlo, J. R. (Autor:in) / Sun, Ruonan (Autor:in) / Pfefferle, William C. (Autor:in)

    Kongress:

    1994 Subzero Engineering Conditions Conference and Exposition ; 1994



    Erscheinungsdatum :

    01.02.1994




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Diesel engine cold starting with catalytically ignited recirculated exhaust gas

    Sun,R. / Sweet,E.J. / Zurlo,J.R. et al. | Kraftfahrwesen | 1994




    Catalytically Activated Diesel Exhaust Filters - Engine Test Methods and Results

    Koberstein,E. / Pletka,H.D. / Voelker,H. et al. | Kraftfahrwesen | 1983


    Catalytically Activated Diesel Exhaust Filters – Engine Test Methods and Results

    Koberstein, E. / Völker, H. / Pletka, H.-D. | SAE Technical Papers | 1983