Abstract: A fuel system includes an internal combustion engine, a fuel device and a heat exchanger. The internal combustion engine receives an air/fuel mixture and produces heated exhaust air. The fuel device receives fresh air and provides the air/fuel mixture that is received by the internal combustion engine. The heat exchanger receives the heated exhaust air from the internal combustion engine and fresh cool air, transfers heat energy from the heated exhaust air to the fresh cool air, and provides the fresh air to the fuel device. The provided fresh air is the fresh cool air that has received the heat energy.

Abstract: Various methods and systems are provided for reducing pressure in a fuel tank of a fuel system of an engine. In one example, cooling fluid is routed from an air conditioner of a cooling system to a vapor cooler disposed in a vapor space of the fuel tank such that fuel vapor in the fuel tank may be condensed and routed to a fuel pump for delivery to the engine, thereby reducing a fuel tank pressure.

Abstract: An airflow enriching device for an internal combustion engine having an intake manifold. The airflow enriching device having a reaction chamber operable to hold a supply of liquid fuel at a selected level therein, and a vapor flow controller. The reaction chamber having an aerator submerged below said selected level of liquid fuel. The aerator for bubbling a supply of air through the fuel to form an enriched airflow. The vapor flow controller for controlling the flow of the enriched airflow into the intake manifold of the engine.

Abstract: A charge pipe passage includes a second pipe passage part which is connected to a fuel tank by way of a first pipe passage part and extends toward the other side from one side in the vehicle widthwise direction, and a third pipe passage part which is communicably connected with the second pipe passage part on the other side in the vehicle widthwise direction and has a highest part arranged at a highest position of the charge pipe passage at an intermediate position thereof. A first check valve is interposed on the third pipe passage part downstream of the highest part, an atmospheric air introducing pipe passage is connected to the third pipe passage part upstream of the first check valve, and a second check valve is interposed on the atmospheric air introducing pipe passage at a position higher than the highest part.

Abstract: A fuel supply to unit pump-injector systems of diesel engines includes a gasification and saturation of the liquid diesel fuel. A first fuel line delivers the fuel to a low pressure pump driven by an engine shaft which pumps the fuel to a common low pressure fuel manifold. There, the fuel is distributed for injection by the pump-injector units of the engine cylinders. A second fuel line delivers the fuel to a feed pump that feeds through a plurality of nozzles into a gasification vessel. The vessel is pressurized with a gas (e.g., carbon dioxide, air, etc.) a pressure level P2. There, the fuel is saturated with pressurized gas, which is dissolved in the fuel. The solution is then pumped by a second electro motor driven pump that further increases the solution pressure up to a level P3, which is higher than the pressure level P1. At that point, the solution becomes under-saturated and it is fed to the fuel manifold for injection into the engine.

Abstract: This invention is an after market stand alone complete replacement fuel delivery system that works independent of and after disconnecting the standard liquid fuel delivery system for a fuel injected internal combustion engine. This device creates pressurized gasoline vapors at approximately 35 psi to 90 psi mixed and charged with large amounts of processed compressed air to achieve a gasoline vapor in it's purest form to utilize substantially more of the gasoline's energy potential which will greatly reduce engine emissions to much lower levels and improving the general performance of a gasoline fueled internal combustion engine essentially in the same pressurized gas form as found in a propane or natural gas fuel system, and to be refitted to existing gasoline fuel injected engines.

Abstract: A fuel conditioning method is applicable to common rail direct injection or unit injector system. A liquid fuel is conditioned for higher-efficiency combustion in a combustion chamber. The conditioning system includes a fuel vessel for fuel conditioning, at least one fuel dispersing nozzle mounted for discharge into the fuel conditioning vessel, at least one gas inlet port, and at least one conditioned fuel outlet port located in the vessel. A gas source feeds a gas to the fuel conditioning vessel, wherein the gas is dissolved in the liquid fuel for forming a liquid/gas fuel solution. A low-pressure fuel pump and a liquid fuel supply line deliver liquid fuel from a fuel tank to the at least one dispersing nozzle of the fuel vessel at pressure P1 higher than the gas pressure P2. A high-pressure fuel pump feeds the liquid fuel/gas solution into a common rail and further into fuel injectors, providing a pressure P4 higher than a pressure P5 in the combustion chamber at a moment of combustion.

Abstract: A method and system is disclosed for vaporization of a liquid fuel in a manner that produces a highly concentrated air-fuel mixture using a combination of gasoline and air while eliminating residual liquid fuel droplets therefrom. The system generally includes at least two tanks including a manifold adjacent the bottom thereof. An outlet on the first tank is connected to an inlet connected in the manifold of the second tank. The tanks contain liquid fuel. Compressed air is introduced into the manifold in the first tank causing some of the liquid gasoline to vaporize. The vaporized gasoline is then introduced to the manifold in the second tank causing additional vaporization. The saturated vapor is then drawn off the top of the second tank in the form of a combustible gas vapor for use in any application wherein such an air-fuel mixture is normally utilized.

Abstract: With metered admixing of volatized fuel in an intake manifold of an internal combustion engine with a supercharger, the problem exists that depending on the respective operating state, different pressures prevail in the intake manifold. This problem is resolved in known devices, in that return valves are subsequently added and structurally separated from the tank aeration valve in the flow direction. The present invention proposes that the return valves (39, 40) are structurally integrated in a tank aeration valve (5), in order to reduce the assembly expense and the spatial requirements.

Abstract: A pre-combustion chamber fuel vaporization and aeration system for an internal combustion engine that includes a fuel vaporization and air mixing chamber housing having an aerated fuel vapor outlet opening, a fuel inlet system, and an air inlet system. A fuel supply method for supplying fuel and air to an intake manifold of an internal combustion engine having a fuel tank is also provided that includes the steps of a) providing a pre-combustion chamber fuel vaporization and aeration system for internal combustion engines; b) installing the fuel inlet system in connection with the gas tank; and c) installing the aerated fuel vapor outlet opening in connection with the intake manifold of the internal combustion engine.

Abstract: An engine fuel injection apparatus forms an airtight vaporization chamber having cylindrical sidewall and a flat, solid chamber bottom. A vapor fuel discharge line in fluid communication with the inside of the chamber. A fuel inlet orifice penetrates the sidewall through which a fuel line accesses the chamber, supplying fuel. The fuel supply line inside said chamber terminates with a float level controller such that a constant level of fuel is maintained in the chamber. Submersed below a level of the fuel to be maintained by the float level controller is an atomization device formed of a hollow, perforated plate near, but not at the chamber bottom. An air intake in fluid communication with the atomization device provides air intrusion. As fuel enters the bottom of the chamber from the fuel supply line coming from a fuel pump a mixture of fuel and air results and is sent to the fuel intake manifold of the vehicle.

Abstract: A booster container, an inlet nozzle for air entering the container and an outlet nozzle for air leaving the container, a body of liquid within the container body, the body of liquid being disposed remotely from the inlet nozzle and the outlet nozzle, a plurality of deflectors located within and attached to the container body, forming passages through which the air travels and at least one of the deflectors being partially immersed in the body of liquid. Air passes around the deflectors into the body of liquid and is influenced by a vacuum from an intake manifold, wherein the air forms bubbles in the liquid and leaves the body of liquid under vacuum and passes through the passages formed between the deflectors and leaves the booster container through the outlet nozzle connected to the intake manifold of an internal combustion engine.

Abstract: A booster container, an inlet nozzle for air entering the container and an outlet nozzle for air leaving the container, a body of liquid within the container body, the body of liquid being disposed remotely from the inlet nozzle and the outlet nozzle, a plurality of deflectors located within and attached to the container body, forming passages through which the air travels and at least one of the deflectors being partially immersed in the body of liquid. Air passes around the deflectors into the body of liquid and is influenced by a vacuum from an intake manifold, wherein the air forms bubbles in the liquid and leaves the body of liquid under vacuum and passes through the passages formed between the deflectors and leaves the booster container through the outlet nozzle connected to the intake manifold of an internal combustion engine.

Abstract: This system uses the fuel tank not only to store fuel, but as a generator to create a raw overly rich air/fuel mixture through the use of a bubble pan in the bottom of the fuel tank. This raw air/fuel mixture is then measured by sensors linked to a computer and additional air or fuel may be added by computer demand. Thus the computer can completely regulate the air/fuel mixture at all times in an ever changing way to meet climatic, engine, and load conditions. This total control of the air/fuel mixture in flexible and ever changing way should result in optimum combustion, a clean burn, extreme economy, and maximum engine power. This then is a system of computer controlled mixture.

Abstract: The present invention is for the kind of power machines, engines, pumps or compressors which have two or more pistons which work against each other, preferably with a common combustion chamber or corresponding, in a stationary cylinder and where the power is transmitted to or from a rotating motion without an intermediate cam shaft. One such device has two parallel discs, both a stationary disc and a relatively thereto rotating disc in which there are stationary and rotating tracks. Balls move in the tracks. Between the inside of the housing and the outer edges of the discs there is a comparatively narrow slit. Lubricant which is present inside the housing is affected by the rotating disc so that the lubricant is forced out towards the inside of the housing. In order to supply lubricant to the rotating balls and from these to the rotating and stationary tracks holes and channels have been made within or adjacent to the ballholders and the stationary tracks.

Abstract: The present invention is for the kind of power machine, engines, pumps or compressors which have two or more pistons which work against each other preferably with a common combustion space or corresponding in a stationary cylinder, and where the power is transmitted to or from a rotating motion without an intermediate crankshaft. Independent of whether the machine works as engine, pump or compressor there is a need to cool the cylinder. For applications such as engines for lawn-mowers and power saws the engines must be air-cooled as in practice it is not possible to arrange a water-cooling system. Cooling of the cylinder is obtained by that holes or channels are arranged both in the rotating and the stationary disc and cooling air is made to flow through these channels. In order to further improve the cooling the outside of the cylinder may have flanges.

Abstract: A booster container, an inlet nozzle for air entering the container and an outlet nozzle for air leaving the container, a body of liquid within the container body, the body of liquid being disposed remotely from the inlet nozzle and the outlet nozzle, a plurality of deflectors located within and attached to the container body, forming passages through which the air travels and at least one of the deflectors being partially immersed in the body of liquid. Air passes around the deflectors into the body of liquid and is influenced by a vacuum from an intake manifold, wherein the air forms bubbles in the liquid and leaves the body of liquid under vacuum and passes through the passages formed between the deflectors and leaves the booster container through the outlet nozzle connected to the intake manifold of an internal combustion engine.

Abstract: A method and apparatus for reducing the harmful products of combustion comprises an enclosed vessel adapted to contain a quantity of volatile liquid fuel and a means for extracting gaseous vapors from the fuel and for mixing the vapors with the combustion supporting gas for combustion in an internal combustion engine. A thermal reactor is included into which the combustion exhaust gases from the internal combustion engine are discharged. A flow limiting valve is interposed in the path of the exhaust gases from the thermal reactor for discharging a first portion of the exhaust gases to the atmosphere and returning a second portion of the exhaust gases to the thermal reactor vessel. Also provided is a valve for discharging the second portion of the exhaust gases from the internal combustion engine at a temperature below the boiling range of the liquid fuel into the vessel below the surface of the liquid fuel therein and an ultrasonic generator for imparting ultrasonic energy to the exhaust gases.

Abstract: A method and system for estimating air/fuel ratio of an internal combustion engine having a fuel vaporizer device calculates the rate of fuel evaporation based on temperature of the vaporizer device to estimate air/fuel ratio during a cold-start. In one embodiment, a temperature of the fuel vaporizer device is determined directly by an appropriate sensor. In another embodiment, the temperature is determined using a transient heat transfer model based on the air flow rate through the device and the exit temperature of the air/fuel mixture. The temperature is used to determine the amount of energy entering the fuel vaporizer device as well as the amount of energy leaving the fuel vaporizer device so as to determine the amount of fuel vaporized by the fuel vaporizer device. The air/fuel ratio is then estimated based on the amount of fuel vaporized.

Abstract: A fuel system (10,10') including apparatus (12) for gasifying volatile liquid fuels by introducing dried air and a volatile liquid fuel into a round mixing chamber (46) for circular flow and mixing. Liquid fuel that flows downwardly to a lower extremity (48) of the mixing chamber is removed through a liquid outlet (56). A gas mixture of air and fuel at an upper extremity (50) of the mixing chamber is delivered through a gas outlet (60) for combustion by an internal combustion engine.

Abstract: It is known that enriching fuel with oxygen improves combustion and thus reduces fuel consumption, improves performance and reduces pollutant and soot particle emission. In order to prevent the air admixed into the fuel before the air is introduced into the combustion chamber from forming air bubbles in the supply pipe, the fuel-air mixture is selectively degassed depending on the size of the air bubbles. The fuel is fed by a feed pump (4), through a suction pipe (2), from a tank (1) into an apparatus (3), and from there into an internal combustion engine (5). Air is admixed by device (6). The apparatus (3) contains a degassing chamber (7) with a floater (8) that closes the lower admission (10) with a sealing cone (9) and that controls with an actuating pin (11) an inlet valve (12) depending on the level of fuel in the chamber.

Abstract: Apparatus for supplying air-and-gasoline vapor mixture from the ullage space in a gas tank above the gasoline therein through a safety cannister and a shut-off valve to two "gang" valve assemblies that divide the vapor into individual flows that are delivered directly to the intake valves of the individual cylinders of a piston-and-cylinder engine, by-passing the carburetor and the intake manifold. The gas tank is aerated through a vent pipe having on one end an air filter open to outside air and on the other end an aerator submerged in the gasoline, and the fuel-vapor mixture is directed into the intake ports of the intake valves by heat-resistant nozzle tubes.

Abstract: A method for improving economy and performance in the operation of internal combustion engines of motor vehicles includes the steps of (a) providing on the motor vehicle a confined supply of alcohol, (b) pressurizing the confined supply of alcohol with engine exhaust gases, (c) passing a controlled stream of alcohol from the confined supply to an enclosure defining an upper zone and a lower zone to maintain a volume of liquid alcohol in the lower zone, (d) charging a stream of air into the volume of the alcohol to vaporize a portion thereof and form vaporized alcohol in the upper zone, (e) causing pressure contained within the enclosure to discharge a stream of the vaporized alcohol from the upper zone of the enclosure into the air intake manifold of the engine, (f) baffling the stream in its passage from the enclosure to the air intake manifold and (g) causing the stream of the vaporized alcohol to mix with the air passing in the manifold for subsequent mixture with the primary gasoline fuel.

Abstract: A method and apparatus for increasing fuel economy of a diesel fuel engine in which an aerator (40) bubbles air through diesel fuel (F) in a diesel fuel tank (T) to generate diesel fuel fumes in the ullage (U). In a turbocharged diesel engine, the fumes are directed by a valve (60) to fume injectors 86 and injected just before the turbo charger fan (32). In a normally aspirated engine, the fumes are directed by a valve (160) to the intake manifold (124).

Abstract: The proposed invention is directed to a new and unique method and apparatus for obtaining improved fuel economy from an internal combustion engine. This result is incorporated into a commercially installed fuel delivery system for an internal combustion engine that utilizes a volatile liquid fuel supply tank in which an evaporated gaseous state fuel is generated and contained therein. This gaseous state fuel is then drawn from the fuel tank liquid supply source and thereafter delivered into the induction air path of the said engine. An electronically operated fuel/air mixture means is used to provide controlled, variable volumes of evaporated gaseous state fuel for the operation of said engine. In the event that additional vaporized fuel is desirable and/or necessary, a commercially manufactured liquid vaporizing means may be used in addition to the evaporated gaseous state fuel for the operation of said internal combustion engine.

Abstract: The present invention relates to a system for delivering an air-fuel mixture to an internal combustion engine in a virtually complete gaseous form. The system is essentially comprised of a converter which dries intake air and combines the dried air with gas vapor and an air modulator for adding additional atmospheric air to the air-gas vapor mixture. The convertor contains an activated charcoal substance which enhance evaporation of the fuel, prevents "gumming" of the fuel in the convertor, and inhibits condensation of the fuel after evaporation. The air-gas vapor mixture is then fed to an internal combustion engine. In a first embodiment, the system may be installed as an add-on apparatus to an automotive engine which already uses fuel injection as fuel feeding means. In that embodiment, disabling means are installed to disable the fuel injectors. In a second embodiment, the system may be utilized as original equipment for feeding an air-fuel vapor mixture to an internal combustion engine.

Abstract: Liquid gasoline introduced from a suitable source into a treatment tank of the system is transformed into a relatively dry vaporous state substantially free from large droplets or similar particles. Pellets within an outer chamber of the vessel are propelled by air streams into engagement with each other, and with walls of the vessel, and generate frictional heat. Baffle members in an inner chamber of the vessel reduce the size of droplets of gasoline in such chamber. Dry gas is conducted from the treatment vessel to a holding tank, from whence it is supplied to the intake manifold of the engine. Valves of the system are operated in response to actuation of an accelerator associated with the engine. Liquid gasoline from a lower portion of the vessel is supplied to the intake manifold of the engine during initial start-up, and at other times when no dry gasoline vapor is present within the holding tank.

Abstract: An improved carburetor and fuel preconditioner for internal combustion engines comprising a first air conduit; a bubble chamber receiving air from said conduit and for bubbling the air through a fuel; a vapor chamber for receiving the air-fuel mixture; catalytic beads held within said bubble chamber for contacting and cracking fuel coming into contact therewith; a second air conduit for receiving an independent source of atmospheric air; and one or more pill cans located between the vapor chamber and the second air conduit for controlling the richness of the air-fuel mixture which is fed from the second air conduit into the intake manifold of an internal combustion engine for superior efficiency. Another pill can may be located between the vapor chamber and the intake manifold for controlling and feeding the highly volatile mixture from the vapor chamber directly to the intake manifold.

Abstract: A method and on board apparatus to recycle gasoline vapor emissions from the head space of a motor vehicle gasoline tank during refueling and operation of the vehicle. The apparatus comprises a canister to collect and store gasoline vapor from the head space and a vapor fan and sparger combination to retrieve vapor driven from the canister during a heating cycle and to dissolve the vapor in the liquid gasoline in the tank. The canister includes an adsorbent to separate the vapor from air and a vent valve to release air from the canister. Inside the canister is a ceramic heater, a temperature sensor and an adsorbed vapor sensor. A water drain permits condensed moisture to be released from the canister. The sparger comprises a microscopically porous body having a plurality of relatively large blind passages therein, the sparger body being entirely immersed in the liquid gasoline.

Abstract: An apparatus for preparing and supplying a mixture of fuel, air and combustion supporting particles to an internal combustion engine for use therein. A first chamber open to the atmosphere is used to contain a controlled amount of liquid fuel, a portion of which is vaporized by an ultrasonic transducer to produce a mixture of vaporized fuel and air. A second chamber open to the atmosphere, and in fluid communication, is used to contain a supply of combustion supporting particles mixed with liquid fuel. Air enters the second chamber and pours through the mixture of fuel and carburetor supporting particles to produce a vaporized mixture of fuel, air and combustion supporting particles. The output of the first and second chambers are mixed together and supplied on demand to the mixed fuel and air mixture flowing from the carburetor into the engine to enhance the performance of the engine.

Abstract: A device attachable to an internal combustion engine for a motor vehicle having the usual carburetor, air filter and air filter housing, intake manifold, radiator through which an engine coolant is circulated when the engine is running and a source of liquid fuel for the engine. The device includes a fuel vaporizing chamber adapted to fit against the air filter housing and contain a body of the fuel at a predetermined level.

Abstract: A split vapor/liquid fuel supply system feeds liquid hydrocarbon fuel to the carburetor or its equivalant of an spark ignition internal combustion engine for ignition with air within a reciprocating piston defined combustion chamber. A partial fuel vaporizer connected intermediate of the fuel tank and the carburetor includes a housing forming underlying liquid fuel chamber, an overlying vapor expansion chamber, and a heat transfer plate separating the same in a sealed housing assembly. Varying degrees of vacuum pressure are applied within said sealed housing chamber causing ambient air to enter the air liquid chamber below the liquid fuel level within the liquid fuel chamber for percolation therethrough, passage through a perforated air distribution plate, and explosion impingement against the perforated heat transfer plate with increased production of vaporization of the liquid fuel due to the lowering of the fuel boiling point as a result of atmospheric pressure with said chamber.

Abstract: A multi-cylinder fuel atomizer for automobiles which includes an electromechanical transducer disposed between a concentrated cylinder arranged in a suction passage and respective suction pipes independently branched from the concentrated cylinder to corresponding cylinders. A horn ring vibrator is fixed to an end of the electromechanical transducer and is partly exposed to the suction pipes. The fuel injector is arranged upstream of the electrical mechanical transducer and is adapted to inject fuel to the horn ring vibrator, with the fuel being atomized by vibrations of the horn ring vibrator.

Abstract: An apparatus for vaporizing liquid gasoline for use in a carburation system includes a centrifugal pump which pumps liquid gasoline from a tank through a check valve into an inlet of the pump. The rotor of the centrifugal pump is operated at a sufficiently high rate to cause a substantial amount of cavitation of liquid gasoline within the centrifugal pump. The liquid gasoline is preheated by exhaust heat from the engine before it enters the inlet from the centrifugal pump, and vaporizes rapidly in the cavitation region. The vaporized gasoline and some liquid gasoline are fed back into the tank, wherein the liquid portion recombines with gasoline already in the tank and the gasoline vapor accumulates above the liquid gasoline in the tank. Gasoline vapors are conducted from within the tank through a check valve into a carburation apparatus which mixes the gasoline vapors with a controlled amount of air and feeds it into the intake manifold of the engine.

Abstract: An improved fuel injection system for a spark ignition multicylinder internal combustion engine includes a fuel heater tank for vaporizing liquid fuel and accumulating a supply of fuel vapors. The fuel vapors are pressurized by an air pump driven by the internal combustion engine, and a plurality of injection nozzles are located in the intake manifold at positions as close to the intake valves as possible. A control valve mechanism supplies fuel vapors accumulated in the fuel heater tank to each of the nozzles.

Abstract: A generator for converting volatile combustible liquids, such as gasoline, methanol and the like, into an aeriform gas including a closed vessel containing liquid gasoline maintained at a predetermined level, evaporating the liquid gasoline by passing streams of desiccated atmospheric air therethrough, after which the resulting gas is passed through specially processed charcoal material, which stabilizes the resulting gas into an aeriform gas as a fuel source for internal combustion engines.

Abstract: An evaporative carburetor has a normally pressure-tight chamber which houses an evaporator tray to which a fuel supply delivers gasoline. A first air passage in the carburetor chamber communicates from a first, automatically-valved, air inlet to pick up gasoline particles and vapor from the evaporator tray. A second air passage communicates from the evaporator tray to a mixing region and includes a particle arrester. A heater maintains the evaporator tray and the second passage above a selected temperature. A second, externally-controlled, valved inlet feeds air to the mixing region, and a third air passage communicates from the mixing region to a throttled output port. An aqueous control liquid is injected into the air stream in the third passage.

Abstract: Hot water is transmitted from an automobile's cooling system to a fuel vaporizer wherein it is utilized to heat gasoline to a vapor state. Air is drawn into the fuel vaporizer utilizing carburetor vacuum and is added to the vapor and drawn into the carburetor. Vaporized fuel and outside air are mixed in a separate dry vapor section within the vaporizer and the amount of air allowed to enter the fuel vaporizer is controlled utilizing a valve system. In this manner, the fuel-air vapor is more efficiently burned in the engine and improved gas mileage is achieved.

Abstract: A liquid fuel vaporizing carburetor for an internal combustion engine including a housing having a fuel reservoir, a filter assembly including a plurality of filters of progressively smaller pores positioned in said housing; one of said filters being immersed in the fuel reservoir, a baffle for drifting incoming air into the filter in the reservoir and secondary air into openings in the housing to add secondary air to the air-fuel mixture as the air-fuel mixture passes through the filter assemblies.

Abstract: A fuel system and electronic control therefor which is especially designed for use with an internal combustion engine or the like in which said fuel system is operable to provide fuel fumes or vapor to the engine from a source of liquid ignitable vaporizable fuel, such as gasoline, of sufficient quantity whereby to significantly increase the efficiency of the engine and thus substantially increase the per gallon mileage rate for the engine when used in an automotive vehicle or the like, and one using liquid fuel as the original fuel source. The system incorporates an electronic control operable to monitor the combustion of the vaporizable fuel and which control is responsive to a change in engine demand for said fuel to maintain the optimum ratio of vaporized fuel and air in the mixture delivered to the engine for combustion.

Abstract: A water-augmented fuel and air supply system for an internal combustion engine which draws heated air into its intake manifold through two paths, one carrying the bulk of air, referred to as leaning air, drawn directly into the manifold, and the other providing a smaller stream of mixing air through a fuel and water vaporizer heated by engine exhaust. In the vaporizer, the heated mixing air flow acts upon a pool of liquid water and fuel to stimulate vaporization thereof. As engine temperature and engine exhaust temperature rise, the maximum vaporization stimulation effect of the impinging mixing air is no longer needed and is correspondingly reduced. The result is to permit cold starts and to provide a lean mixture of vaporous mixing air conducive to sustained economical engine operation, and increased power availability from the engine without incurring excessive rise in engine operating temperatures.

Abstract: A fuel vapor charge producing device comprising a pure liquid fuel or mixture container which can be of any desired shape and material with a cover and a float secured inside said device to control the inflow of pure liquid fuel or mixture into the container, a fuel or mixture inlet-valve made on said container for the entry of fuel or mixture, an air inlet adapted to allow the entry of air into said container above the liquid or mixture level and another air inlet below the fuel or mixture level such that the incoming air comes in contact with the liquid fuel or mixture to aid and agitate in emulsifying and vaporizing said fuel or mixture evenly within the range of the operating temperature, and a vapor outlet connected to the intake manifold and/or to the air inlet of the carburetor of a conventional internal combustion engine, such that when the engine runs, the device is subjected to a vacuum pressure to force atmospheric air to be sucked into said device through the air inlets and to provide the proper o

Abstract: A device is disclosed which, when used in conjunction with a conventional carburetor metering device of an internal combustion engine, allows formation of a mixture of fuel vapor and air which burns more efficiently and yields less harmful combustion by-products than conventional carburetor systems. Incoming air to the engine is substantially completely saturated with fuel vapors by passing the air through a controlled volume of liquid fuel heated to a predetermined temperature, thereby allowing the air stream to become substantially saturated with fuel vapors. The air-fuel vapor mixture is further leaned downstream by the addition of fresh air, and the leaner, but more uniformly and controllably saturated air-fuel mixture then is introduced into the engine.

Abstract: A carburetor device for an internal combustion engine is disclosed. The device includes a well adjacent to the intake manifold for holding a quantity of liquid fuel. Perforated tubing is in the bottom of the well, and air under pressure is selectively supplied to the tubing to froth the liquid fuel and produce fuel vapor. The amount of the tubing receiving air under pressure is varied in accordance with fuel demand. The fuel vapor is mixed with ambient air and directed into the intake manifold. The system includes a storage tank for providing the air under pressure, and a pump to supply air to the storage tank.

Abstract: A internal combustion engine fuel vaporizing device, including a vaporator tank assembly and air mixture assembly, connect by a tube. The vaporizing device consists of a fuel intake and float mechanism, a number of air intakes, some of which may include the catalytic device attachment and supplemental heater coils and a non-volatile particle reservoir. The air mixture consists of an air intake, two anti-backfire devices, a baffle system and a throttle mechanism.

Abstract: Disclosed is a fuel vaporizer system for forming a mixture of vaporized fuel and air and injecting the mixture into the intake manifold of a spark ignition internal combustion engine. The vaporizer unit includes a canister containing a controlled liquid level of fuel and a foraminous body partially submerged in the liquid fuel to promote rapid vaporization of the fuel. The canister contains a dividing wall above the foraminous body so that air drawn into the canister must pass through the foraminous body and mix with the vaporized fuel. The vaporization unit functionally parallels the conventional carburetor and includes means to control the flow of gas through the vaporizer and control the pressure in the intake manifold.

Abstract: A carburetor of an internal-combustion engine in an automotive vehicle has at least one main duct and an ancillary duct supplying an air/fuel mixture to a manifold, the fluid flow through the ducts being controlled by an accelerator via ganged butterfly valves of which the one in the main duct closes completely whereas the one in the ancillary duct closes only partially in an idling position. Separate nozzles deliver fuel to the main duct at a higher hydrostatic head and to the ancillary duct at a lower hydrostatic head, thereby preventing the aspiration of an excessive amount of fuel by the piston cylinders upon deceleration of the vehicle or during idling. The fuel is admitted to the ducts, between a Venturi throat and the butterfly valves, by nozzles fed from a common float-controlled pressure regulator, or from two such pressure regulators, to which the fuel is delivered by gravity from a buffer reservoir also provided with a float valve and connected to the high-pressure side of a fuel pump.

Abstract: Air is bubbled through a preset level of fuel in a vaporization chamber, thus forming a vaporized fuel-air mixture. The vaporized fuel-air mixture is supplied to the carburetor through a vapor conduit from the crankcase. Each time the engine is started, a drop of additive is inserted. Each time the engine is stopped the fuel is drained from the vaporization chamber.