Experimental studies of fuel utilisation during the early stages of engine warm-up after cold-starts are reported. The investigation has been carried out on a 1.8 l, 4 cylinder spark-ignition engine with port electronic fuel injection. The relationship between fuel supplied and fuel accounted for by the analysis of exhaust gas composition shows that a significant mass of fuel supplied is temporarily stored or permanently lost. An interpretation of data is made which allows time-dependent variations of these to be separately resolved and estimates of fuel quantities made. The data covers a range of cold-start conditions down to -5 degC at which, on a per cylinder basis, fuel stored peaks typically at around 0.5 g and a total of 1 g is returned over 100 seconds of engine running. Fuel lost past the piston typically accounts for 2 g over 200 to 300 seconds of running. Fuel stored is poorly mixed on return to the bulk mixture and passes into the exhaust system primarily as unburned hydrocarbons.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Stored and lost fuel quantities after engine start-up


    Weitere Titelangaben:

    Kraftstoffverlust und -lagerung nach Anlassen des Fahrzeugmotors


    Beteiligte:
    Shayler, P.J. (Autor:in) / Davies, M.T. (Autor:in) / Scarisbrick, A. (Autor:in)


    Erscheinungsdatum :

    1997


    Format / Umfang :

    16 Seiten, 7 Bilder, 11 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Stored and lost fuel quantities after engine start-up

    Shayler,P.J. / Davies,M.T. / Scarisbrick,A. et al. | Kraftfahrwesen | 1997


    Stored and lost fuel quantities after engine start-up

    Shayler, P. J. / Davies, M. T. / Scarisbrick, A. et al. | British Library Conference Proceedings | 1997


    Port-Fuel-Injection Gasoline Engine Cold Start Fuel Calibration

    Tagomori, Mauro K. / Henein, Naeim A. / Luan, Yunfei | SAE Technical Papers | 2006


    ENGINE START METHOD AND ENGINE START APPARATUS

    KOISHI AKIFUMI / TAWARA MASAHIKO / TEZUKA ATSUSHI et al. | Europäisches Patentamt | 2017

    Freier Zugriff