Reducing engine swept volume (so-called ‘downsizing’) offers the potential to meet future tighter CAFÉ standards and reduced CO2 vehicle emissions in Europe. In downsizing the gasoline engine, a key challenge is controlling octane requirement without sacrificing fuel economy.The authors have investigated five alternative approaches on a turbocharged DI gasoline engine: Each approach has been investigated using engine performance and vehicle simulation codes. Experimental investigations have been carried out using a 1.125L I3 multi-cylinder engine. The most promising concept, LBDI, has been further developed using the multi-cylinder engine installed in a Ford Focus C-class vehicle.


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    Title :

    Turbocharging Concepts for Downsized DI Gasoline Engines


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE 2004 World Congress & Exhibition ; 2004



    Publication date :

    2004-03-08




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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