2 and that their centers are in line with the cylinder centerline and also that the centerline of the eccentric bearing 7 is also on the cylinder centerline if the offset 8 of the eccentric bearing 7 is moved upward away from the axis 5 of the crankshaft 4 by 0 001 inches the resulting path of the center of the eccentric bearing 7 will no longer be circular at tdc the path will be 0 001 inches above the circular path of the crankpin 6 and 0 001 inches further away from the axis 5 of the crankshaft 4 at bdc the path will be 0 001 inches within the circular crankpin path and 0 001 inches closer to the axis 5 of the crankshaft 4 the vertical distance of the newly generated path along the cylinder centerline will still be equal to the stroke of the crankshaft 4 and the piston will still travel 1 125 inches as in the case of the prototype engine as the offset 8 of the eccentric bearing 7 is moved further upward the resulting path of the center of the eccentric bearing 7 will continue to increase in radius along the lower half of the pattern as the radius of curvature of the pattern increases in that area piston travel will continue to be unchanged at 1 125 inches the goal is to continue to move the offset distance 8 upward until an eccentric bearing offset distance is found that produces a bottom portion of the pattern that matches and closely approximates an arc traced by a radius equal to the on centers length 19 of the connecting rod 9 as.