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A carburetion system for an internal combustion engine includes a fuel heater and vaporizer unit which produces a 30% liquid/70% vapor fuel mixture for delivery to the carburetor, and a flow control valve connected to be responsive to the ported vacuum pressure in the carburetor to increase the flow

A carburetion system for an internal combustion engine includes a fuel heater and vaporizer unit which produces a 30% liquid/70% vapor fuel mixture for delivery to the carburetor, and a flow control valve connected to be responsive to the ported vacuum pressure in the carburetor to increase the flow of heated and vaporized fuel to the carburetor when the ported pressure decreases, and decrease the flow of such heated and vaporized fuel when the ported pressure increases. The air drawn into the carburetor as a result of engine operation is further heated to a temperature within the range 160°F. to 180°F., by thermister controlled heating elements. In operation, the flow control valve works in conjunction with the carburetor float chamber to provide varying amounts of heated liquid fuel and heated vaporized fuel for mixing within the carburetor with the heated air, to enhance combustion within the engine and produce a corresponding reduction in exhaust pollutants.

대표청구항 ▼

A device for improving combustion of the air/fuel mixture in an internal combustion engine including a fuel pump, an air intake means, and a carburetor having a fuel float chamber, an air/fuel mixing throat in communication with the air intake means, and passage means from the float chamber to the m

A device for improving combustion of the air/fuel mixture in an internal combustion engine including a fuel pump, an air intake means, and a carburetor having a fuel float chamber, an air/fuel mixing throat in communication with the air intake means, and passage means from the float chamber to the mixing throat, the device for improving combustion of the air/fuel mixture in an internal combustion engine comprising: a fuel heating and vaporizing unit having a fuel inlet connected to the fuel pump, and an outlet for a mixture of liquid and vaporized fuel produced within the fuel heating and vaporizing unit; and a flow control valve for controlling the flow of the mixture of liquid and vaporized fuel from the fuel heating and vaporizing unit outlet to the float chamber, the control valve being connected to a ported vacuum line extending from the carburetor and responsive to ported vacuum pressure to increase the flow of the mixture of liquid and vaporized fuel when the pressure decreases, and decrease the flow of the mixture of liquid and vaporized fuel when the pressure increases.