Instead, in this engine the top of the connecting rod attaches to a "crosshead" and a long piston rod then connects the crosshead to the piston. This lowers the sideways forces produced by the connecting rod and is absorbed by the crosshead and not by the piston. Sideways forces are what makes the cylinders in an auto engine become oval-shaped over time.
thats a really interesting setup...in reality the crosshead guide wear limit could be virtually unlimited, and still provide excellent wear reduction in the cylinder walls... i wonder which other companies are going to be streamlining this new technology...