Abstract: An engine having a rotary member and a linear member includes a first axis about which the rotary member rotates and a second axis coupling the rotary member to an offset rotary element. The linear member is coupled to the offset rotary element by a first coupling fixed in position relative to the linear member and a second coupling that moves within a space in the linear member. The linear member moves back and forth in lateral fashion from a first position to a second position. The lateral movement of the linear member causes continuous rotational movement of the rotary member in one direction.

Abstract: An engine includes a piston located in a cylinder, an inlet through which at least a portion of fuel for an ignition and combustion is passed into the cylinder, an outlet through which exhaust from the combustion is removed from the cylinder, and an air injector that injects air into the cylinder after the ignition and before exhaust escapes through the outlet. The air injector injects sufficient air to burn out all active matter of the fuel, whereby emissions from the engine are free of active matter of the fuel.