In light of the growing emphasis on CO2 emissions reduction, Delphi has undertaken an internal development program to show the fuel economy benefits of lean, stratified combustion with its outwardly-opening solenoid injector in a vehicle environment. This paper presents the status of this ongoing development activity which is not yet completed. Progress to date includes a logical progression from single- and multi-cylinder dynamometer engines to the vehicle environment. The solenoid-actuated injector used in this development has an outwardly-opening valve group to generate a hollow-cone spray with a stable, well-defined recirculation zone to support spray-guided stratification in the combustion chamber. The engine management system of the development vehicle was modified from series-production configuration by changing the engine control unit to permit function development and calibration. The resulting full-size, V6-engine vehicle achieves significant fuel savings compared to homogeneous stoichiometric operation, while showing the potential to be the best-value Powertrain solution through the innovative use of solenoid injector technology.


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    Titel :

    Fuel Efficiency Improvements from Lean, Stratified Combustion with a Solenoid Injector


    Weitere Titelangaben:

    Sae Int. J. Engines


    Beteiligte:
    Ramsay, George (Autor:in) / Husted, Harry L. (Autor:in) / Piock, Walter (Autor:in)

    Kongress:

    SAE World Congress & Exhibition ; 2009


    Erschienen in:

    Erscheinungsdatum :

    2009-04-20


    Format / Umfang :

    8 pages




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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    A General Model for Solenoid Fuel Injector Dynamics

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