Rocker arm adjusting nut
AssigneeCrane Cams Incorporated
InventorsMichael J. Golding, William A. Pohle
Life of this patent
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Abstract
An improved rocker arm adjusting nut characterized by an upper collar, a lower flange and an axially elongated body with a substantially cylindrical central section that is provided with knurling, or grooves in the axial direction. The upper collar and knurling deflect oil axially towards the lower flange when used according to its intended purpose with a stamped steel rocker arm, of conventional design. The enlarged mass and surface area of the adjusting nut helps both to dissipate temperature from the pivot ball-rocker arm interface, by conduction, and deflect oil towards the pivot ball-rocker arm interface.
Claims6
An improved rocker arm adjusting nut intended to engage a threaded stud and position a stamped steel rocker arm and a pivot ball with respect to said stud and thereby define part of the valve train of an internal combustion engine, said adjusting nut comprising an axially elongated body with a substantially right circular cylinder central portion, a transversely overhanging upper collar spaced above said central portion, a bottom flange spaced below said central portion, a tightening nut portion spaced above said upper collar and an axial internal thread adapted to engage with an external thread on a stud, wherein said central portion has a circumferential surface that comprises axially extending passages, whereby oil droplets impinging upon said central portion circumferential surface will be urged by gravity to travel axially towards said bottom flange, when said improved rocker arm adjusting nut is used in its intended environment.
Dependencies are inferred from the claim text.