Patent ID: 9470311
Filing Date: 2016-10-18
CPC Classification: B21K,F02F,F16J,Y10T

Claim Text:
1. A power cell assembly, comprising: a piston crown, including a ringland extending circumferentially about a combustion bowl, and two boss portions extending downward from the combustion bowl to define a cavity therebetween, and defining an axis of rotation extending from one of the boss portions to the other of the boss portions, the boss portions each including inwardly extending shoulders that extend in a direction that is colinear with the axis of rotation, defining arcuate crown running surfaces, wherein the shoulders are integrally formed of a single piece with the combustion bowl; and a connecting rod having a shank and an upper end received in the cavity, the upper end defining arcuate connecting rod running surfaces extending away from the shank and in the direction that is colinear with the axis of rotation, the arcuate running surfaces positioned to mate with the crown running surfaces, thereby allowing the connecting rod to pivot with respect to the piston crown about the axis of rotation, wherein an underside of the combustion bowl of the crown defines an upper crown running surface configured to mate with a corresponding upper running surface of the connecting rod while pivoting about the axis of rotation.