| 摘要 |
<p>A compact and lightweight internal combustion engine having a pair of opposed cylinders and pistons reciprocating therein, and power and return rollers carried by each of the pistons to reciprocate therewith during piston travel. A power output shaft has an integral and external driven cam located to be driven in rotation by the power rollers in response to power stroke travel of the pistons. The output shaft has an integral flange with an internal cam track which is engaged by the return rollers in response to return stroke travel of the pistons. The power and return rollers have parallel axes of rotation, the return roller axes being closer to the axis of rotation of the shaft than the power roller axes. </p> |
