Abstract: A combustion control system for an engine having an intake manifold with a throttle, a PCV gas inlet opening into the intake manifold, an exhaust conduit, and a PCV gas conduit. A vortex device has a vortex chamber with a tangential inlet connected to the PCV gas conduit, an axial inlet, and an axial outlet connected directly to the PCV gas inlet opening of the intake manifold. A reactor device has a gas inlet connected directly to the exhaust conduit for drawing gas therefrom and an outlet spaced well apart from the vortex device and connected to the axial inlet of the vortex device by a conduit. The reactor device includes a first ejector for drawing in atmospheric air and mixing it with gas from the exhaust conduit, and a second ejector for drawing in liquid from a source of liquid and sending it into the atmospheric air drawn in by the first ejector means. The vortex device and the reactor are novel in themselves too.

Abstract: This combustion control system adds a fluid and heat energy to the air-fuel mixture of the induction system of an internal combustion engine in response to engine need to improve combustion, to increase power, to improve efficiency, and to reduce emissions. Fluidic control mechanisms provide the control functions without any moving parts. A vortex chamber serves as a main variable impedance control mechanism. The outlet of the vortex chamber is connected to the positive crankcase ventilation (PCV) inlet to intake manifold downstream of the butterfly valve. The vortex chamber has a tangential input for PCV gases and an axial input for supplying air, aqueous fluid, and exhaust gases, all for mixing within the vortex chamber and transmitted to the intake manifold. The exhaust gases are conducted to the vortex via two parallel ejectors, one of which sends water or vapor across a gap to mix with intake air that is sucked into the exhaust gases by the other ejector.

Abstract: A combustion control system adds a fluid and heat energy to the air-fuel mixture of the induction system of an internal combustion engine in response to engine need to improve combustion, to increase power, to improve efficiency, and to reduce emissions.The system incorporates fluidic control mechanisms which provide the control functions without any moving parts.The system incorporates one or more variable impedance flow control mechanisms, each of which produces an impedance to flow through the control mechanism which varies in a controlled relationship to the pressure differential across the control mechanism.In one embodiment, the main variable impedance control mechanism is a vortex chamber. The outlet of the vortex chamber is connected to the positive crankcase ventilation (PCV) inlet to intake manifold downstream of the butterfly valve.The vortex chamber has inputs for supplying air, the liquid, exhaust gases, and PCV gases for mixing within the vortex chamber.