Abstract: An apparatus for supercharging a four cycle internal combustion engine has at least one inlet reed or check valve and at least one outlet reed or check valve associated with each cylinder of the internal combustion engine. The crankcase of the engine is maintained air tight and if the engine is multi-cylindered, the crankcase must be provided with some form of air tight separation between each cylinder inside the crankcase. When the engine is rotating, each up-stroke of each piston causes an air charge to enter the respective crankcase section for that cylinder through its associated inlet reed or check valve. Each down-stroke of the piston causes compression of the charge in the associated section of the crankshaft and delivery of this pressurized charge through the associated outlet reed or check valve.

Abstract: Rotary inlet and exhaust valves disposed within the cylinder head located at one end of at least one cylinder of a vehicle engine, the cylinder having inlet and exhaust ports, and the valves having a mechanism to feed an inlet charge to and exhaust from the respective cylinder ports along the axis of rotation of the valves. Mechanisms for reducing eddy losses, insulating the exhaust valve, and lubricating the valves by either a wet or dry lubricator, or both, is also included, as well as single and multi-cylinder variations of the valves for various vehicle engines.

Abstract: Rotary inlet and exhaust valves disposed within the cylinder head located at one end of at least one cylinder of a vehicle engine, the cylinder having inlet and exhaust ports, and the valves having a mechanism to feed an inlet charge to and exhaust from the respective cylinder ports along the axis of rotation of the valves. Mechanisms for reducing eddy losses, insulating the exhaust valve, and lubricating the valves by either a wet or dry lubricator, or both, are also included, as well as single and multi-cylinder variations of the valves for various vehicle engines.