WRIST PIN AND METHOD OF REDUCING WEAR BETWEEN MEMBERS THEREOF, CONNECTING ROD, PISTON AND METHODS OF CONSTRUCTING SAME

摘要

A wrist pin and method of reducing wear between members thereof, a piston, a connecting rod, and methods of construction thereof are provided. The wrist pin has a first portion extending between opposite ends configured for receipt in piston pin bores and a second portion extending between opposite ends configured for receipt in the pin bores. The second portion is configured for relative movement with the first portion. The piston includes a piston body having axially aligned pin bores, wherein at least one of the pin bores has a feature to prevent relative rotation of a wrist pin member. The connecting rod includes a connecting rod body having small end bore. The small end bore has a contour to allow relative rotation of a first wrist pin member therein and a feature to prevent relative rotation of a second wrist pin member therein.

主权项

1. A connecting rod for operable attachment to a piston, comprising:
a connecting rod body having small end bore configured for receipt of a wrist pin having first and second portions, said small end bore having a contour to allow relative rotation of the first wrist pin portion and a feature to prevent relative rotation of the second wrist pin portion.