In order to investigate the effects of high injection pressure on engine performance and exhaust emissions, some experimental high injection pressure in-line pumps were made and tested.Increasing fuel spray momentum by high injection pressure could reduce smoke emission, but excessive increase in injection pressure was found not so effective in further reducing smoke emission.Accordingly, a high injection pressure should be accomplished within the low engine speed range a feature that has been very difficult to achieve for a conventional in-line pump.An electronic controlled injection-rate-control pump with a variable prestroke mechanism can provide higher injection pressure in low engine speed range and advances injection timing in high engine speed range. This pump can improve fuel economy in low engine speed range and emissions (smoke and particulate) over transient FTP for HDE's. This pump with prestroke control sleeve directly driven by a solenoid is capable of achieving timing advance without delay even at engine cold starting and hence is effective in improving cold start-ability.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Improvements of Exhaust Gas Emissions and Cold Startability of Heavy Duty Diesel Engines by New Injection-Rate-Control Pump


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Ishida, A. (Autor:in) / Kurihara, S. (Autor:in) / Kanamoto, T. (Autor:in)

    Kongress:

    1986 SAE International Off-Highway and Powerplant Congress and Exposition ; 1986



    Erscheinungsdatum :

    01.09.1986




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    Effect of Fuel Injection Conditions during Cold-Starting of Diesel Engine on Startability and Exhaust Emissions

    Katayama, Satoru / Hayashida, Kazuhiro / Suematsu, Yukinori et al. | British Library Online Contents | 2016



    Diesel Particle Exhaust Emissions from Light Duty Vehiclesand Heavy Duty Engines

    Mamakos, Athanasios / Ntziachristos, Leonidas / Rexeis, Martin et al. | SAE Technical Papers | 2006