| 摘要 |
A piston of an internal combustion engine having a skirt with a hole to receive a piston pin the axis of which is perpendicular to the axis of the skirt the side surface of which is provided with two recesses arranged at the opposite sides of the piston pin hole axis and having cylindrical surfaces axes of which are parallel with the axis of the skirt, the pins receiving inserts having a cylindrical outer surface engageable with the surface of the cylinder of the internal combustion engine, this outer cylindrical surface having a radius of curvature equal to the radius of the cylinder of the engine, and having an inner cylindrical surface of a radius of curvature equal to the radius of curvature of the recess, and two springs each disposed between the insert and skirt to urge the corresponding insert to the cylinder. the insert has in cross section the shape of a curvilinear wedge with the maximum angle not exceeding the angle of friction thereof. |
