| 摘要 |
A piston extends along a central axis with an upper crown and a boss depending from the crown. The boss has opposite sides extending along opposite sides of the central axis to a free end and an annular pocket extending laterally into at least one of the sides. The boss further includes an opening extending through the free end into the pocket. The opening has a width extending from the side in which the pocket extends toward the other side of the boss. An assembly including the piston further includes a connecting rod terminating at a small end configured for receipt in the pocket with a shank extending from the small end. The small end can be provided with an external bearing material on a convex outer surface, and the small end is unobstructed from lateral movement along the opening over a full stroke of the piston. |
