Patent ID: 6540403
Filing Date: 2003-04-01
Classification: F01M,F16C,F16J

Abstract:
A trapezoid piston pin bushing fabricated of bushing material comprising a bushing back and slide bearing material applied to the bushing back and having two opposing apex lines receiving a main load in an inserted position and having an axially shorter section forming the first apex line and an axially longer section forming the second apex line, and an area of material reduction limited to at least one transition region between the apex lines in which the width of the transition region increases in the direction of the first apex line to the second apex line, and in that the bushing material in the transition region is at least so reduced that in the inserted position a portion of the radial pressure of the piston pin bushing in the area of the apex lines is shifted from a middle of the bushing toward areas of opposite bushing ends, said transition region extending in the direction of circumference over a 100Â° sector.