Abstract: This invention is directed to an apparatus and method for forming an air-fuel mixture vapor for introduction and burning in an internal combustion engine. With this invention, it is possible to realize a more complete vaporization of the fuel and a more complete mixing of the air and fuel to form said air-fuel mixture vapor. The result is that in an automotive vehicle using an internal combustion engine, it is possible to realize more mileage from a given volume of fuel than can be realized from an engine not using this invention.

Abstract: A hot fuel gas generator for an internal combustion engine simultaneously vaporizes gasoline and water in a multi-chambered heated pressure vessel having built in regulators for controlling pressure and volume and delivers the resulting superheated steam and gaseous fuel to the internal combustion engine downstream from the usual carburetor. A single device operating at a very high temperature, for example 1600.degree. F., is used for the simultaneous vaporization of the fuel and water to develop desirable working pressure and volume. The high temperature steam and gaseous fuel positions the fuel molecules at the greatest degree of separation from each other providing the greatest opportunity for contact of the oxygen, the reacting species in the gaseous condition as chemical reactions occur only between particles at the atomic or molecular level and it is necessary for the reacting species to be in actual contact at the time of reaction.

Abstract: A manifold heat exchanger for an internal combustion engine is disclosed as including an enclosed liquid receptacle having a heat receiving portion projecting into an exhaust manifold and a heat dissipating portion projecting into an associated intake manifold. The receptacle is partially filled by a quantity of liquid that is vaporized by heat from the exhaust gases flowing over the heat receiving portion of the receptacle. The vaporized liquid transfers heat to the heat dissipating portion of the receptacle so as to heat a combustible charge flowing within the intake manifold. The intake manifold is preferably located above the exhaust manifold so that gravity normally positions the unvaporized liquid within the heat receiving portion of the receptacle. The liquid receptacle also preferably has a mushroom shape with an elongated lower portion defining its heat receiving portion and a partially spherical upper portion that defines the heat dissipating portion.

Abstract: An internal combustion engine having a carburetor-type fuel induction system in which the primary carburetor barrel delivers an air/fuel mixture into a container. The air/fuel mixture is conducted from the container into the intake manifold. A liquid trap is provided between the primary barrel and the container to collect liquid gasoline running down the side wall. This trapped liquid is delivered directly to the intake manifold, resulting in improved cold start performance of the engine. The container is preferably heated by means such as exhaust gas, liquid engine coolant or electrical heaters.

Abstract: A device heats the fuel-air mixture by means of the exhaust in an internal combustion engine having an intake for the fuel-air mixture and an exhaust gas line, with a portion of the intake and a portion of the exhaust line having a common wall for heat transfer.

Abstract: A multi-stage carburetor has a primary throttle bore that is extended into the intake manifold in close proximity to the exhaust gas heated manifold floor, and a secondary bore that surrounds a portion of the primary bore and terminates at the inlet to the intake manifold so as to avoid a restriction to flow of secondary air into the manifold and past the primary passage.

Abstract: A fuel metering system for an internal combustion engine meters out fuel in dependence on the pressure in a fuel supply container. This pressure is controlled by a valve or valves which provide communication with different regions of the induction tube of the engine. The control valves are electro-magnetic valves under the control of a suitably processed and amplified signal from an exhaust gas measuring probe which determines the concentration of oxygen.

Abstract: A carburetor system for a gasoline engine wherein the carburetor functions are accomplished through evaporation in a chamber external to the carburetor with additional benefits afforded through the use of a humidification chamber, the total process utilizing captured exhaust gases from the automobile exhaust manifold.

Abstract: A system for gasifying a mixture of fuel, air and recycling exhaust gases for induction into an internal combustion engine, comprising means interconnected between extant fuel pump and engine carburetor to preheat the mixture by bleeding heat from a heat generator to the flow line between pump and carburetor for preheating said flow line and of utilizing the heating media in the carburetion process and optionally secondarily heating said carbureted mixture in the generator sequentially of introduction of the preheated fuel to the carburetor.

Abstract: A fuel-air vaporizing apparatus including fuel metering means discharging a regulated fuel flow into a heated airflow within a conduit for subsequent and remote discharge into the air induction system of an engine. A nozzle structure, subjected to vacuum pressure, discharges fuel below an induction regulating valve. Fuel and air linkage, jointly operated by the driver's throttle, actuate said fuel metering means and the air induction regulating valve in a synchronized manner to provide an optimum, completely vaporized fuel-air mixture to the engine. An idle assembly controls engine operation during both idling and other closed throttle conditions. Said idle assembly functions to cut off fuel flow during vehicle deceleration with fuel flow resuming upon certain engine conditions being reached. Temperature responsive means are associated with both the idle assembly and the fuel-air linkage to assure optimum fuel-air ratios throughout a range of engine temperatures.