Single-cylinder spark ignition engine experiments conducted at constant speed, fixed airflow, and using isooctane as the fuel, demonstrated the effects of fuel-air mixture preparation on lean operation. Mixture preparation was changed by varying the time of fuel injection in the induction manifold, near the intake valve port. For comparison, a prevaporized fuel-air mixture was also investigated. Emphasis was placed on determining the effects of mixture preparation on combustion characteristics. Based on the results from this study, the often favored prevaporized mixture of fuel and air may not be the best diet for lean engine operation.Single-cylinder spark ignition engine experiments conducted at constant speed, fixed airflow, and using isooctane as the fuel, demonstrated the effects of fuel-air mixture preparation on lean operation. Mixture preparation was changed by varying the time of fuel injection in the induction manifold, near the intake valve port. For comparison, a prevaporized fuel-air mixture was also investigated. Emphasis was placed on determining the effects of mixture preparation on combustion characteristics. Based on the results from this study, the often favored prevaporized mixture of fuel and air may not be the best diet for lean engine operation.


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    Titel :

    “Wetting” the Appetite of Spark Ignition Engines for Lean Combustion


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    1978 Automotive Engineering Congress and Exposition ; 1978



    Erscheinungsdatum :

    1978-02-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Wetting the Appetite of Spark Ignition Engines for Lean Combustion

    Peters,B.D. / Quader,A.A. / General Motors Res.Lab.,US | Kraftfahrwesen | 1978


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    QUADER,A.A. / General Motors | Kraftfahrwesen | 1974


    Controlling Cyclic Combustion Variations in Lean-Fueled Spark-Ignition Engines

    Daw, C. S. / Yuan, F. / Connolly, F. T. et al. | SAE Technical Papers | 2001