This paper describes the concept, analysis and preliminary rig proving of a 2-mode mechanical variable-valve-actuation system, “Latchcam”, designed initially for prototype bucket-tappet overhead-cam applications. The rig-test data allows the prototype Latchcam performance to be compared to a state-of-art 2-mode system in a current cylinder-head application. Some general design implications and issues are reviewed.


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    Title :

    Latchcam: A Camshaft Integrated 2-Mode Variable Valve Actuation System


    Additional title:

    Sae Technical Papers


    Contributors:
    Lacy, C. (author) / Lacy, D. (author) / Roberts, G. (author) / Gilbert, I. (author) / Pirault, J-P. (author) / Eaton, J. (author) / McClelland, M. J. (author) / Meldolesi, R. (author)

    Conference:

    SAE 2005 World Congress & Exhibition ; 2005



    Publication date :

    2005-04-11




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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