One of the main causes of the inadequate transient response of a 4-valve engine was established as being partition wall-wetting. The possibility of resolving this problem by improving fuel atomization was investigated. An air-mix type injector, although producing finer droplets with more uniform distribution, was not found effective in improving transient response.The development of a two-hole injector is described. This new injector produces twin sprays which are directed into the siamese intake ports without wetting the partition wall. As a consequence, the lean A/F ratio excursion is reduced, torque stumble is eliminated and the conversion efficiency of a three-way catalyst is increased.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Two-hole Injector Improves Transient Performance and Exhaust, Emissions of 4-valve Engines


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    SAE International Congress and Exposition ; 1987



    Erscheinungsdatum :

    01.02.1987




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Two hole Injector Improves Transient Performance and Exhaust Emissions of 4-valve Engines

    Iwata,M. / Furuhashi,M. / Ujihashi,M. et al. | Kraftfahrwesen | 1987


    Toyota Air-Mix Type Two-Hole Injector for 4-Valve Engines

    Yoshizaki, Hiroshi / Takeda, Keiso / Sugimoto, Tomojiro | SAE Technical Papers | 1991


    Toyota air-mix type two-hole injector for 4-valve engines

    Sugimoto,T. / Takeda,K. / Yoshizaki,H. et al. | Kraftfahrwesen | 1991


    Performance and Exhaust Emissions of a Diesel Engine Equipped with Dual Injector System

    Horibe, Naoto / Yagi, Masato / Kuwabara, Hiroki et al. | British Library Online Contents | 2017


    Lean burn engines for low exhaust emissions

    Benjamin,S.F. / Haynes,C.D. / Tidmarsh,D.H. et al. | Kraftfahrwesen | 1986