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US 8,573,170 B2Granted
Rocker arm assembly with integrated support pin anti-inversion feature
AssigneeSchaeffler Technologies AG & Co. KG
InventorsMark Sullivan, Jesse Myers, Richard Baker, Lutz Kirbach, Michael Turner, James Westbrook, Benjamin McAuley, William Carter
Life of this patent
Estimating the term…
Abstract
A rocker arm assembly which has an anti-inversion part that prevents a support pin from inverting and, thus, ensuring proper orientation of the support pin, on which a rocker arm is rotatably mounted, is maintained. The anti-inversion part can be incorporated on the support pin, the inner sleeve or the outer sleeve and/or a combination of the support pin, the inner sleeve and/or the outer sleeve.
Claims18
A rocker arm assembly for use in an internal combustion engine, comprising:
- a rocker arm having a transverse through-hole;
- a support pin being positioned in the through-hole and about which the rocker arm rocks;
- a bearing positioned at each end of the support pin in the through-hole between the support pin and the rocker arm, the bearing having an outer sleeve, an inner sleeve and roller elements therebetween,
- the outer sleeve abutting an inner circumferential wall of the through-hole, and having an outer bearing wall that extends radially inward and covers the through-hole,
- the inner sleeve abutting an outer circumferential wall of the support pin, and having an inner bearing wall that extends radially inward and covers an axial end wall of the support pin, the outer bearing wall abutting the inner bearing wall to accommodate axial loads,
- the rolling elements positioned between and in contact with the inner sleeve and outer sleeve to accommodate radial loads;
- and
- a means for preventing inversion of the support pin, wherein the means for preventing inversion of the support pin is a combination of the support pin and at least one of the inner sleeve and the outer sleeve.
5 more elements
Dependencies are inferred from the claim text.