AN approach to the problem of selecting the optimum compression ratio and spark timing as related to the antiknock qualities of the fuel to be used, has been developed.First it is determined at points throughout the range of engine speeds how far the spark can be advanced before knock appears or power falls off. Then a distributor curve is drawn which is just safely under the curve of maximum permissible spark advance versus engine speed.This information is recorded for each compression ratio under consideration. Finally power output and specific fuel consumption at the spark timing indicated by the distributor curve are compared for the different compression ratios.It has been found that fuels of high sensitivity permit greater spark advance than fuels of low sensitivity.


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    Titel :

    FUEL ANTIKNOCK QUALITY - A Basis for SELECTION OF COMPRESSION RATIO


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    GAY, ERROL J. (Autor:in) / MUELLER, HENRY T. (Autor:in)

    Kongress:

    Pre-1964 SAE Technical Papers ; 1906



    Erscheinungsdatum :

    01.01.1947




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Fuel antiknock quality -- Basis for selection of compression ratio

    Gay, E.J. / Mueller, H.T. | Engineering Index Backfile | 1947



    Potentialities of fuel antiknock quality

    Hesselberg, H.E. / Lovell, W.G. | Engineering Index Backfile | 1951


    THE POTENTIALITIES of FUEL ANTIKNOCK QUALITY

    Hesselberg, H. E. / Lovell, W. G. | SAE | 1950


    Fuel antiknock performance in high-compression engines

    Domke, C.J. / Esau, N.D. / Gray, D.S. et al. | Engineering Index Backfile | 1956