SYMPATHIZING with the engineer who finds that the high efficiency designed into his engine fails to produce the anticipated increase in average miles per gallon obtained under normal driving conditions, the authors touch upon some of the factors, many of them out of the engine designer's control, which may completely mask the expected improvement.In so doing, they start with an engine of known specific consumption and show the effect of air resistance, chassis friction, gear ratio, and car weight on constant-speed road economy, comparing calculated values with actual test values available.Also discussed are such factors as climatic variations, traffic operation, cross-country driving and the individual driver, which have a definite effect upon economy, but over which the designer has little or no control. The effect of these factors is illustrated by the spread in tank mileage shown by a number of cars of similar model in fleet operation.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Tank Mileage


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Pre-1964 SAE Technical Papers ; 1906



    Publication date :

    1939-01-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    MILEAGE IMPARTING DEVICE AND MILEAGE IMPARTING METHOD

    YOSHIDA HISAFUMI / MIWA MASAFUMI / TANAKA HIROBUMI | European Patent Office | 2022

    Free access

    Car mileage

    Mackay, H.C. | Engineering Index Backfile | 1899


    ELECTRIC MILEAGE ESTIMATION DEVICE, ELECTRIC MILEAGE ESTIMATION METHOD, AND ELECTRIC MILEAGE ESTIMATION PROGRAM

    IIDA TAKUMA / IWASAKI TAKAYUKI / HOSHIDA MASAAKI et al. | European Patent Office | 2022

    Free access

    Interchangeable mileage tickets

    Engineering Index Backfile | 1896


    Empty car mileage

    Engineering Index Backfile | 1896