Evaluation of overhead camshaft valve actuation, carried out by General Motors, and results obtained; conventional pushrod-operated valve train is compared to direct-acting and rocker-actuated overhead camshaft systems by analytical and experimental means; effect of various methods of valve actuation on valve train weights, forces, and stresses is examined showing that principal advantage of overhead camshafts is increased natural frequency of valve train; resulting improved dynamic characteristics of valve-actuating mechanism make it possible to design camshaft profiles which expand useful operating range of high-speed engines.


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    Title :

    Advantages of overhead camshafts -- What are they


    Additional title:

    SAE -- Paper


    Contributors:


    Publication date :

    1968


    Size :

    21 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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