To achieve lean combustion in a gasoline engine, a swirl type combustion chamber is placed in the piston top. The compression swirl thereby created makes a rapid combustion possible, which is essential to a lean burn engine.The experiments are carried out with a single cylinder four stroke engine, mainly at a compression ratio of 13.8:1, and are compared to a Heron-type combustion chamber.Minimum fuel consumption is obtained at an air-fuel ratio of 19, and as an average, an improvement of approximately 5 per cent is found.The peak cylinder pressure is reduced in comparison to the Heron chamber at the same compression ratio.


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    Title :

    Lean Combustion in a High Compression Four Stroke Gasoline Engine


    Additional title:

    Sae Technical Papers


    Contributors:
    Kofoed, E. (author) / Herbsleb, K. S. (author) / Lorenzen, L. (author)

    Conference:

    Passenger Car Meeting & Exposition ; 1981



    Publication date :

    1981-06-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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