This study investigated the relationship between the average molecular structures of combustion chamber deposits (CCD), the quantity of deposit formed and the aromatic content of the fuel. Solid-state 13C nuclear magnetic resonance (NMR) techniques developed for the study of coal were applied to CCDs generated in spark ignition engines on dynamometer test stands. Using these techniques, the molecular structures were identified and related to fuel chemistry, cylinder deposit thickness and cylinder deposit weight. With a better understanding of the structure of the deposits formed during combustion, fuel formulations and CCD control-additive development can be greatly improved.


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    Title :

    Relationship Between Combustion Chamber Deposits, Fuel Composition, and Combustion Chamber Deposit Structure


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    International Fuels & Lubricants Meeting & Exposition ; 1993



    Publication date :

    1993-10-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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