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US 4,359,913 AGranted
Piston pin assembly
AssigneeAMSTED Industries Incorporated
InventorDavid J. Mahlke
Life of this patent
Estimating the term…
Abstract
An improved piston pin assembly which includes a hollow tubular piston pin and one or more supports positioned within the hollow space formed by the piston pin so as to inhibit deflection of the piston pin when the assembly is subjected to load conditions.
Claims1
In a piston pin assembly particularly adapted for joining a connecting rod to a pistonhead having high performance characteristics, and improvement therein comprising,
- a body having an elongated cylindrical-shaped outer surface and a hollow inner space defined by a cylindrical-shaped center section of a selective length joined on each side by contiguous cylindrical-shaped intermediate sections having a diameter greater than said center section to provide stops at the juncture of said sections,
- said hollow inner space further being defined by cylindrical-shaped outer sections contiguous with the outer ends of each said intermediate sections, each said outer sections having a diameter greater than said intermediate sections to provide a body having a maximum deflection resistant-weight ratio,
- said outer and center sections being hollow, and solid cylindrical-shaped inserts tightly positioned in said intermediate section in contact with said stops to minimize deflection of said pin body upon loads being transferred between said connecting rod and said pistonhead.
Dependencies are inferred from the claim text.