A drive assembly for a fuel pump for an internal combustion engine comprising a shoe (26, Fig.5) and roller 24 rolling over the surface of a cam. The shoe defines a cavity in which the roller sits with a clearance C1 between the roller and shoe, wherein an extended clearance forms a space is defined adjacent to the roller to one or both sides of the roller, where the space C2 (at the side) has a greater dimension that the clearance (at the top). The space may be on one or both sides of the roller. The space can cover an angular range A relative from the central axis defined by a relationship to the cam pressure angle (2ɸmax


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    Title :

    Drive assembly for a fuel pump


    Publication date :

    2020-05-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English



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