In the jet-ignition prechamber stratified-charge spark-ignition engine, the fuel-air mixture at the time of combustion is non-uniform. Instantaneous exhaust mass flow rates and emission concentrations from this engine were measured and used to determine the degree to which this charge stratification persists in the products of combustion immediately downstream of the exhaust valve throughout the exhaust process.In all the cases studied no appreciable variations, during the exhaust process, were detected either in the air-fuel ratio of the exhaust gases as a function of time or in the instantaneous concentrations of CO2, O2 and NOx. The experimentally obtained instantaneous HC and CO concentrations in the exhaust, however, displayed large fluctuations and were used to study the sources of these two pollutants in this engine.In the jet-ignition prechamber stratified-charge spark-ignition engine, the fuel-air mixture at the time of combustion is non-uniform. Instantaneous exhaust mass flow rates and emission concentrations from this engine were measured and used to determine the degree to which this charge stratification persists in the products of combustion immediately downstream of the exhaust valve throughout the exhaust process.In all the cases studied no appreciable variations, during the exhaust process, were detected either in the air-fuel ratio of the exhaust gases as a function of time or in the instantaneous concentrations of CO2, O2 and NOx. The experimentally obtained instantaneous HC and CO concentrations in the exhaust, however, displayed large fluctuations and were used to study the sources of these two pollutants in this engine.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Time Resolved Measurements of the Exhaust from a Jet Ignition Prechamber Stratified Charge Engine


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Ekchian, A. (Autor:in) / Rife, J. M. (Autor:in) / Heywood, John B. (Autor:in)

    Kongress:

    1977 International Automotive Engineering Congress and Exposition ; 1977



    Erscheinungsdatum :

    1977-02-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Time Resolved Measurements of the Exhaust from a Jet Ignition Prechamber Stratified Charge Engine

    Ekchian,A. / Heywood,J.B. / Rife,J.M. et al. | Kraftfahrwesen | 1977


    Performance and NOx emissions modeling of a jet ignition prechamber stratified charge engine

    Hires,S.D. / Ekchian,A. / Hezwood,J.B. et al. | Kraftfahrwesen | 1976


    Performance and NOx Emissions Modeling of a Jet Ignition Prechamber Stratified Charge Engine

    Ekchian, A. / Wall, J. C. / Heywood, John B. et al. | SAE Technical Papers | 1976


    Experimental results from Volkswagen s prechamber stratified charge engine

    Brandstetter,W.R. / Volkswagenwerk | Kraftfahrwesen | 1977