An investigation describing engine friction reduction benefits attainable via the introduction of Solid Film Lubricants to piston skirts is presented. Ford II-25 thermoset and II-25 waterborne molybdenum disulfide based solid film lubricants were shown through single cylinder motored engine experiments, to produce piston system friction reductions of 12 to 17% at 1500 rpm. Further tests undertaken in fired engine dynamometer studies, on a 1.91 1-4 CVH engine, demonstrated total engine friction reductions of 6% at W.O.T. conditions. The reduced engine friction resulted in lowering BSFC at 850 rpm by 3 to 4%. Tests conducted by Powertrain Operations confirmed durability. II-25 thermoset was selected for production implementation on all new Ford engines starting from model year 1995.


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    Title :

    Engine Studies of Solid Film Lubricant Coated Pistons


    Additional title:

    Sae Technical Papers


    Contributors:
    Lizotte, B. (author) / Yeager, D. (author) / Kabat, D. M. (author) / Rao, V. D. N. (author)

    Conference:

    SAE International Congress and Exposition ; 1997



    Publication date :

    1997-02-24




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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