Wrist pin
AssigneeAe PLC
InventorsOlivier Beaurepaire, Frederick H. Thompson
Life of this patent
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Abstract
Wrist pins for use in pistons are described. The wrist pin comprises an elongate, substantially hollow member having two spaced-apart convex surface portions of substantially cylindrical or oval curvature, the two convex portions being connected by two walls of different curvature. Because the connecting walls are more nearly in compression and bending loads are minimised a lighter wrist pin for a given application may be produced.
Claims11
A wrist pin comprising an elongate, substantially hollow member having two spaced-apart convex portions each having a substantially cylindrical outer form and which co-operate with corresponding surfaces in wrist pin bosses of an associated piston and in the small end of an associated connecting rod wherein said convex portions are connected by walls of greater radius of curvature than the radius of curvature of said convex portions.
A wrist pin comprising an elongate, substantially hollow member having two spaced apart convex portions and which co-operate with corresponding surfaces in the wrist pin bosses of an associated piston and in the small end of an associated connecting rod wherein said convex portions have an oval outer profile and are connected by walls of less curvature than the convex portions.
Dependencies are inferred from the claim text.