HIGHER compression ratios, the main key to better passenger-car engine efficiency, can be increased by two main factors: chemical and mechanical octane numbers. Although remarkable gains have been made in the former in recent years, the limits in improvements have about been reached. Thus the current emphasis on means of improving mechanical octane numbers.The authors tell here of important experiments and developments in ignition control, valve timing, carburetion, engine-transmission relationship, and combusion-chamber design—the five factors most important in achieving mechanical octane numbers.Presented also are 25-year charts of trends in passenger-car weight, length, horsepower, engine speed/car speed, compression ratio, acceleration time, fuel economy, and efficiency.HIGHER compression ratios, the main key to better passenger-car engine efficiency, can be increased by two main factors: chemical and mechanical octane numbers. Although remarkable gains have been made in the former in recent years, the limits in improvements have about been reached. Thus the current emphasis on means of improving mechanical octane numbers.The authors tell here of important experiments and developments in ignition control, valve timing, carburetion, engine-transmission relationship, and combusion-chamber design—the five factors most important in achieving mechanical octane numbers.Presented also are 25-year charts of trends in passenger-car weight, length, horsepower, engine speed/car speed, compression ratio, acceleration time, fuel economy, and efficiency.


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    Titel :

    Mechanical Octanes for Higher Efficiency


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    McDuffie, A. D. (Autor:in) / Mitchell, B. J. (Autor:in) / Caris, D. F. (Autor:in) / Wyczalek, F. A. (Autor:in)

    Kongress:

    Pre-1964 SAE Technical Papers ; 1906



    Erscheinungsdatum :

    01.01.1956




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Mechanical octanes for higher efficiency

    Caris, D.F. / Mitchell, B.J. / McDuffie, A.D. et al. | Engineering Index Backfile | 1955


    MECHANICAL OCTANES

    TAUB, ALEX | SAE Technical Papers | 1951


    Mechanical octanes

    Chandler, J.M. / Enoch, O. | Engineering Index Backfile | 1956


    ONCE MORE ABOUT MECHANICAL OCTANES

    CHANDLER, J. M. / ENOCH, O. | SAE Technical Papers | 1956


    Knocking octanes

    Van Hartesveldt, C.H. / Field, H.W. | Engineering Index Backfile | 1940