Experiments were conducted to assess the relative effects of swirl (by using a masked intake valve and by providing swirl grooves on the piston crown) and squish on the performance, emission and combustion characteristics of a lean burn engine operating on liquefied petroleum gas (LPG) at a compression ratio of 10.5 under 20% and 100% throttle opening conditions. The swirl produced by the masked intake valve configuration at 100% throttle opening resulted in improved thermal efficiency and reduced HC emission, cyclic variations, ignition delay & combustion duration as compared to swirl groove piston and enhanced squish piston. The lean misfire limit was extended and there was no increase in the NO level at any given power output. At 20% throttle with high squish, under lean mixture conditions, combustion is even better than the masked valve configuration. The combined swirl and squish configuration resulted in a small extension of the lean misfire limit and no significant change in the performance.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Effect of Intensified Swirl and Squish on the Performance of a Lean Burn Engine Operated on LPG


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Ramesh, A. (Autor:in) / Raju, A. V. Sita Rama (Autor:in) / Nagalingam, B. (Autor:in)

    Kongress:

    CEC/SAE Spring Fuels & Lubricants Meeting & Exposition ; 2000



    Erscheinungsdatum :

    2000-06-19




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Squish-Swirl And Injection-Swirl Interaction In Direct-Injection Diesel Engines

    Miles, P.C. / RempelEwert, B.H. / Reitz, R.D. | British Library Conference Proceedings | 2003


    Effects of Swirl and Squish on S.I. Engine Combustion and Emission

    Nagayama, Isao / Iioka, Yasuo / Araki, Yasushi | SAE Technical Papers | 1977


    The Role of Swirl and Squish in Combustion of the Si Engine

    Inoue,T. / Nakanishi,K. / Noguchi,H. et al. | Kraftfahrwesen | 1980


    The Squish-Jet Combustion Chamber for Ultra-Lean Burn Natural Gas Engines

    Kastanis, Eric / Evans, Robert L. | SAE Technical Papers | 2011


    Effects of swirl and squish on S.I. engine combustion and emission

    Nagayama,I. / Araki,Y. / Iioka,Y. et al. | Kraftfahrwesen | 1977