THIS paper summarizes a series of experiments to determine the cause of combustion noise in an automotive engine.Results indicate that wild ping is associated with fuel octane number and rumble with surface ignition. Rumble can be reduced by careful selection of base stocks of fuels, although deposit-modifying additives also have a minimizing effect.The author concludes by stating that higher and higher compression ratios will increase the problems of engine noise.THIS paper summarizes a series of experiments to determine the cause of combustion noise in an automotive engine.Results indicate that wild ping is associated with fuel octane number and rumble with surface ignition. Rumble can be reduced by careful selection of base stocks of fuels, although deposit-modifying additives also have a minimizing effect.The author concludes by stating that higher and higher compression ratios will increase the problems of engine noise.


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    Title :

    Knock, Rumble, and Ping


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Pre-1964 SAE Technical Papers ; 1906



    Publication date :

    1959-01-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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