Patent ID: 6948458

Claim:
An internal combustion engine comprising: a dual cylinder having an upper cylinder chamber and a lower cylinder chamber; an upper piston in the upper cylinder chamber and a lower piston in the lower cylinder chamber; a connecting rod connected to the upper piston and lower piston for common movement of the pistons during intake, compression, power, and exhaust strokes; said connecting rod having a laterally extending arm connected with means for producing rotation of a crankshaft when the connecting rod moves linearly during travel of the pistons in the cylinder chambers in said power strokes thereof; a guide connected to said laterally extending arm of the connecting rod to undergo rotation during the power strokes of the pistons, said cylinder having upper and lower cylinder heads having respective intake and exhaust ports; a rotor located at each of said upper and lower cylinder heads, said rotor being driven in rotation with said guide as the connecting rod moves linearly; each said rotor having an opening which successively communicates with said intake and exhaust ports as the rotor rotates.