Abstract: A cone clutch having a male cone driven by a shaft transferring torque from a power source to a female cone, the male cone moveable along spiral splines on the shaft from a first position disengaged from said female cone to a second position engaged with the female cone, a spring located on said shaft between said male and female cones forcing the male cone towards the first position, the male cone forced to move towards the second position by the action of the spiral splines during rotation of the shaft.

Abstract: Engine systems have two or more internal combustion power units. The units are connected to deliver power by way of freewheeling mechanisms so that one of the power units may be stopped or idled while one or more other power units continues to supply power. A control system is configured to shut an air shut off valve and/or disable an ignition and/or fuel injection system to shut down an auxiliary one of the power units.

Abstract: The invention is directed to a novel self-supercharging internal combustion engine with two pairs of three pistons and cylinders. A self-supercharging internal combustion engine comprising: (a) a first piston and cylinder with intake and exhaust valves, the piston being connected to a crankshaft; (b) a second piston and cylinder with intake and exhaust valves, the piston being connected to the crankshaft; (c) a third piston and cylinder of a size which is at least double the size of the first and second pistons, the third piston having a valve which enables air and fuel to be drawn into the cylinder, the third cylinder being connected to the intake valves of the first and second pistons and cylinders, the third piston being connected to the same crankshaft as the first and second pistons, and a corresponding second set of three pistons and cylinders, the three pistons being connected to a second crankshaft, each crankshaft being interconnected by meshing gears.

Abstract: Engine systems have two or more internal combustion power units. The units are connected to deliver power by way of freewheeling mechanisms so that one of the power units may be stopped or idled while one or more other power units continues to supply power. A control system is configured to shut an air shut off valve and/or disable an ignition and/or fuel injection system to shut down an auxiliary one of the power units.

Abstract: The invention is directed to a novel self-supercharging internal combustion engine with two pairs of three pistons and cylinders. A self-supercharging internal combustion engine comprising: (a) a first piston and cylinder with intake and exhaust valves, the piston being connected to a crankshaft; (b) a second piston and cylinder with intake and exhaust valves, the piston being connected to the crankshaft; (c) a third piston and cylinder of a size which is at least double the size of the first and second pistons, the third piston having a valve which enables air and fuel to be drawn into the cylinder, the third cylinder being connected to the intake valves of the first and second pistons and cylinders, the third piston being connected to the same crankshaft as the first and second pistons, and a corresponding second set of three pistons and cylinders, the three pistons being connected to a second crankshaft, each crankshaft being interconnected by meshing gears.

Abstract: The invention is directed to a novel self-supercharging internal combustion engine with two pairs of three pistons and cylinders. A self-supercharging internal combustion engine comprising: (a) a first piston and cylinder with intake and exhaust valves, the piston being connected to a crankshaft; (b) a second piston and cylinder with intake and exhaust valves, the piston being connected to the crankshaft; (c) a third piston and cylinder of a size which is at least double the size of the first and second pistons, the third piston having a valve which enables air and fuel to be drawn into the cylinder, the third cylinder being connected to the intake valves of the first and second pistons and cylinders, the third piston being connected to the same crankshaft as the first and second pistons, and a corresponding second set of three pistons and cylinders, the three pistons being connected to a second crankshaft, each crankshaft being interconnected by meshing gears.

Abstract: A four stroke internal combustion engine having two or more crankshafts, the crankshafts being separated by one or more freewheeling mechanisms so that when the engine is idling or not delivering full power, the freewheeling mechanism(s) enables one or more of the crankshafts with accompanying pistons to idle, thereby conserving fuel.

Abstract: This invention relates to a novel engine oil system which automatically or manually replenishes oil in the crankcase from an onboard oil reservoir system. An oil level indicator and oil refill device comprising: (a) a source of electrical power; (b) an engine crankcase; (c) an oil level float in the crankcase; (d) a first electrical contact point associated with the oil level float; (e) a second electrical contact point located at a predetermined level in the crankcase; (f) an oil reservoir; and (g) an electrical solenoid valve connected to the source of electrical power and the oil reservoir and normally in a closed position, the solenoid valve being activated when the first electrical contact point contacts the second electrical contact point and opening the solenoid valve and permitting oil to drain from the oil reservoir to the crankcase, said solenoid valve closing when the first electrical contact point rises with oil level and ceases to contact the second electrical contact point.

Abstract: An air-cooled self-supercharging four stroke internal combustion engine having four pistons which move in unison. There are two downward piston strokes in each four stroke cycle. The downward strokes of the pistons are used to compress the air in the crank case and supercharge the engine by forcing more air and fuel into the two combustion chambers. Each combustion chamber serves two piston cylinders. The compressed air and fuel mixture is forced into only one combustion chamber during each downward stroke of the pistons. The two combustion chambers are charged with air and fuel on alternating downward piston strokes. The engine is air-cooled by the flow of the combustion intake air which passes through the crank case. At the same time, heat transferred from the engine pre-heats the intake air to improve combustion efficiency.