To meet diesel emission regulations, high injection pressure is demanded for the supply pump of electronically controlled common-rail type injection system. DENSO has produced common-rail type injection system in 1999. Cam and roller to generate high pressure in the supply pump at the system are composed of steel and silicon nitride ceramics, and are rolling contact under light oil lubrication. Therefore, rolling contact fatigue failure had been concerned. In order to assure the components, we estimated the influence on the materials and the lubrication on the rolling fatigue strength of silicon nitride ceramics, the contact fatigue life was tested under oil lubrication.


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    Title :

    A Study on Rolling Contact Fatigue of Silicon Nitride Ceramics Roller of Supply Pump for Diesel Injection System


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE 2004 World Congress & Exhibition ; 2004



    Publication date :

    2004-03-08




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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