Abstract: Provided is a hydrogen reformer using exhaust gas, comprising: a catalytic reaction unit which generates a reforming gas containing hydrogen when exhaust gas generated in an engine and fuel are supplied thereto; and a heat exchange chamber which is mounted on an outer surface of the catalytic reaction unit and exchanges heat between the exhaust gas and the catalytic reaction unit to supply heat that is required for an endothermic reaction of the catalytic reaction unit, wherein heat of the exhaust gas is used for the endothermic reaction of a catalyst, such that a separate heat source for the endothermic reaction is unnecessary.

Abstract: A system and method to improve the efficiency of an internal combustion engine by delivering an air/fuel mixture to the combustion chamber in a pure gaseous state. The system accepts an air/fuel mixture from a carburetor or injector which is placed into a vaporized state before entering the combustion chamber of the engine. An intake track capable of withstanding exhaust gas temperatures of an internal combustion engine is constructed and arranged to cause vaporization of fuel and inhibit the vaporization from condensing.

Abstract: A system for recirculating blow-by gases into an air intake duct of an internal combustion engine, includes a separating device to separate oil, in a flow of blow-by gases of the engine. The separator device has an inlet for receiving blow-by gases, at least one discharge for returning the oil separated to the engine, and an outlet for clean blow-by gases. A recirculation duct connects the outlet to an air intake duct of the engine. The recirculation duct has an end connected to the intake duct by a T-connector member, with a main duct portion arranged along the intake duct and a tubular element protruding inside the main duct portion. The tubular element protruding inside the main duct portion has an annular end surface that has an irregular profile, preferably in the form of a saw-like toothed profile.

Abstract: A thermal energy management system for an internal combustion engine of a motor vehicle includes a coolant circuit including the internal combustion engine and a first heat exchanger. The coolant circuit is configured to convey a coolant therethrough. The thermal energy management system includes a gas circuit including the internal combustion engine, the first heat exchanger, and an exhaust line configured to convey an exhaust gas produced by the engine from the gas circuit. The first heat exchanger exchanging heat energy between the coolant flowing through the coolant circuit and the exhaust gas flowing through the gas circuit.

Abstract: A method for improving the cold start capacity of an internal combustion engine which is cooled with water that is pre-heated for the cold start. The pre-heated hot water is conducted through flow paths in a region of the crankcase ventilating device and/or in a water/air heat exchanger of the crankcase ventilating device. An internal combustion engine with at least one cooling water circuit, at least one cooling water pump which is arranged in the cooling water circuit, and at least one crankcase ventilating device. The crankcase ventilating device is at least temporarily integrated into the cooling water circuit of the internal combustion engine, and the cooling water circuit has a pre-heating assembly for pre-heating the cooling water when the internal combustion engine is cold started.

Abstract: An intercooler assembly for a vehicle includes an intercooler, and a duct connected to a front side of the intercooler and guiding outside air to the intercooler. The duct is in surface-contact with an outer surface of the intercooler, at which the air flowing into the duct flows out to the intercooler.

Abstract: A preformed article for a cylinder head, includes: a first portion where a first through hole is to be formed from an upper wall portion to a central portion which is a portion, of a bottom wall portion, forming a combustion chamber of an internal combustion engine; and a second portion where a second through hole is to be formed to the central portion from an outer wall portion (for example, the upper wall portion) positioned above an intake port which opens to the central portion. The first portion and the second portion are portions where a cooling water passage is not formed.

Abstract: A fuel vaporizer including fuel injectors is described herein. The vaporizer includes a housing having a plurality of baffles defining a plurality of chambers, with each of the plurality of baffles defining an aperture between adjacent chamber, and the apertures define a flow path from the air inlet, through the plurality of chambers, and to the vapor outlet. A conduit extends through the baffles and chambers, and the conduit is adapted to accept a flow exhaust gas and transfer thermal energy from the exhaust gas to an airflow along the flow path A fuel injector is positioned in the housing to inject fuel into the flow path in the first chamber, the thermal energy from the conduit vaporizing the fuel injected into the airflow and producing the flow of vaporized fuel. The fuel vaporizer may include a heat exchanger pre-heating the airflow and electric heating elements supplementing the conduit heating.

Abstract: A manifold structure for re-directing a fluid stream between first and second ends of a manifold cavity for delivering or discharging a fluid to or from a corresponding fluid transmitting device, such as a heat exchanger is disclosed. In particular, a a flow box enclosing a fluid transmitting device is disclosed wherein an incoming or outgoing fluid is re-directed between first and second directions when being delivered to or discharged from the enclosed fluid transmitting device In one embodiment, the manifold structure includes a first curved surface having a concave curvature for redirecting a fluid stream from a first direction to a second direction. In another embodiment, the manifold structure includes a second curved surface having a convex curvature that is disposed in facing, spaced-apart relationship to the first curved surface, the first and second curved surfaces together inducing swirling movement into the incoming or outgoing fluid stream.

Abstract: The invention relates to a device for mixing a stream of supercharging air and a stream of recirculated exhaust gases. The device comprises a manifold allowing the stream of air and the stream of recirculated gases to be mixed, and allowing the mixture to be distributed in the cylinder head. The device also comprises means for conveying the recirculated exhaust gases in the manifold that allow the distributed injection of the recirculated exhaust gases into the stream of supercharging air. The device additionally comprises means for thermally insulating the conveying means in order to limit the cooling of the recirculated exhaust gases by the supercharging air.

Abstract: A charge air cooler cover includes a nozzle configured for connection to an outlet of a compressor for receiving charge air, a tray configured for connection to an inlet of a charge air cooler, and a plenum leading from the nozzle to a plurality of passages defined by a plurality of ribs. The plurality of passages connects the plenum to the tray. The ribs and the tray are arranged to achieve substantially uniform charge air velocity across the inlet of the charge air cooler, in at least one mode of operation.

Abstract: Methods and systems are provided for adjusting a volume control valve attached to a branch of a split exhaust manifold in a boosted engine system. Volume control valve adjustments are used at different engine operating conditions to improve engine performance and boost response. One example method includes closing the volume in response to a tip-in when increased boost is needed for exhaust turbine spool-up.

Abstract: A device for dosing inlet fluid in an engine and for regulating the temperature thereof is disclosed. The device has a dosing body on which a first and a second circulation channel are arranged. First and second movable flow dosage flaps are arranged in the circulation channels. The dosing body also includes an actuator motor and a kinematic capable of actuating the first and/or the second flap. The device additionally includes first and second tubes, at least one of the tubes having a means for modifying the temperature of the fluid. The kinematic is shaped so as to position at rest, if flap actuation is lost, the first flap of the cool channel being then in a fully open position and the second flap of the hot channel being then in a fully closed position.

Abstract: An engine control system of a vehicle includes a first temperature module, a second temperature module, and an exhaust gas recirculation (EGR) control module. The first temperature module determines a temperature of gas within an intake manifold of an engine. The second temperature module determines a temperature of an EGR conduit that is coupled to the intake manifold. The EGR control module reduces opening of an EGR valve when the temperature of the gas and the temperature of the conduit is greater than a predetermined temperature.

Abstract: Various systems and methods are described for reducing motive flow rate through an aspirator. In one example, a method comprises flowing intake air, heated upon passage through an interstitial space of a double wall exhaust system, through an aspirator coupled to an engine vacuum consumption device to reduce motive mass flow rate at the aspirator as exhaust temperature increases. A position of an intake throttle may be adjusted based on the motive flow rate from the aspirator.

Abstract: Methods and systems are provided for improving crankcase ventilation by directing heated air to a crankcase. Air is drawn into the crankcase upon passage through an interstitial space of a double walled exhaust manifold where it is heated. Crankcase vapors are then released to the engine intake, downstream of an intake throttle.

Abstract: Fuel efficiency in a combustion engine is increased by treating the fuel in a reaction chamber prior to delivering the fuel into the combustion chamber of the engine. The method includes the step of entraining a stream of exhaust gas to travel upstream through the reactor chamber in a first flow pattern. The method also includes the step of entraining a stream of fuel to travel downstream through the reactor chamber in a second flow pattern, where at least one of the first and second flow patterns comprises a structured turbulent flow.

Abstract: A micro-combustion power system is disclosed. The invention is comprised of a housing that further comprises two flow path volumes, each having generally opposing flow path directions and each generally having opposing configurations. Each flow path volume comprises a pre-heating volume having at least one pre-heating heat exchange structure. Each flow path volume further comprises a combustion volume having a combustion means or structure such as a catalytic material disposed therein Further, each flow path volume comprise a post-combustion volume having at least one post-combustion heat exchange structure. One or more thermoelectric generator means is in thermal communication with at least one of the combustion volumes whereby thermal energy generated by an air/fuel catalytic reaction in the combustion volume is transferred to the thermoelectric generator to convert same to electrical energy for use by an external circuit.

Abstract: A fuel conservation device for a combustion engine includes a heat-exchanging tube disposed through a heating coil that is contained within a housing containing coolant. The heat-exchanging tube is adapted to be coupled inline with a fuel line used to supply fuel from a gas tank to a fuel management device, such as a carburetor provided by the engine. In addition, the heating coil is configured to be coupled to an exhaust pipe coupled to the engine, so as to be heated by the hot exhaust gases generated as it operates. A radiator fluidly coupled to the housing cools the coolant, so that the fuel passing through the fuel line is maintained at a temperature just below the boiling point of the fuel.

Abstract: A fuel tank for storing an alternate fuel and providing the fuel to an internal combustion engine includes: an inner shell with an internal cavity designed to store fuel; an outer shell configured and positioned relative to the inner shell such that an interstitial volume is created between the inner and outer shells; and a heating unit positioned in the interstitial volume. In some embodiments, the interstitial volume is filled with air; in other embodiments, the interstitial volume is filled with a thermally insulative material.

Abstract: A catalytic apparatus for efficient pre-combustion refinement of fossil fuel in vehicular engines, including an elongated outer metal pipe containing an elongated stainless steel inner tube of smaller diameter. The outer pipe is crimped or welded onto the inner tube to create a fuel chamber with connectors for the inflow and outflow of fossil fuel therethrough. The fuel chamber contains at least three catalytic elements each comprised of a different metal selected from the group Au, Cu, Ir, Ni, Pd, Pt, Zn and platiniridium, which may be electroplated small-pore screens. As engine coolant is diverted through the inner tube, excess heat is transferred to the inflowing fuel. The fuel is forced to flow in close proximity to the inner tube for maximum convection, and through the catalytic elements before flowing out through the fuel line to the fuel injectors for more efficient combustion.

Abstract: A motor-driven implement such as a hand-held tool or device for garden and landscape maintenance, includes an internal combustion engine having at least one cylinder and at least one carburettor, which is disposed in a carburettor chamber, is separated by an intermediate wall from an engine compartment. A housing is provided which at least partially encloses the engine compartment so that an upper part of the cylinder extends in the direction of the housing, and a fan wheel is further provided by which means air from the engine compartment can be introduced through a warm air opening in the intermediate wall into the carburettor chamber. For the motor-driven implement to have an improved carburettor pre-heating which enables easier operation, it is proposed that the warm air opening is disposed in the area of the intermediate wall which is disposed adjacently to the upper part of the cylinder.

Abstract: A snow blower is provided that includes a muffler and a heater box that has a top wall. The heater box has a plurality of side walls that extend from the top wall. The top wall and side walls define an interior of the heater box. One of the side walls defines a muffler aperture for use in venting exhaust gases from the muffler. The muffler is at least partially located in the interior of the heater box so that the side walls of the heater box surround at least a portion of all of the sides of the muffler.

Abstract: The two-stroke engine fuel intake connects a carburator with the intake port of a two-stroke engine, to homogenize substantially all of the fuel droplets in the fuel-air mixture. The intake tube is in thermal contact with the engine and uses the engine heat to heat the fuel-air mixture. Preferably an oil injection tube extends through the fuel intake tube and injects oil into the fuel-air mixture, heat from which vaporizes substantially all of the fuel-air mixture and assists with vaporizing the oil into the fuel-air mixture.

Abstract: The present invention provides a heated catalyzed fuel injector that dispenses fuel substantially exclusively during the power stroke of an internal combustion engine, wherein ignition occurs in a fast burn zone at high fuel density such that a leading surface of the fuel is completely burned within several microseconds. In operation, the fuel injector precisely meters instantly igniting fuel at a predetermined crank angle for optimal power stroke production. Specifically, the fuel is metered into the fuel injector, such that the fuel injector heats, vaporizes, compresses and mildly oxidizes the fuel, and then dispenses the fuel as a relatively low pressure gas column into a combustion chamber of the engine.

Abstract: An air/fuel mixture consisting of air and a cryogenic fuel, particularly cryogenic hydrogen, is provided for an internal-combustion engine having at least one intake port that can be loaded with air and at least one injector that is assigned to the intake port. A nozzle for blowing in the cryogenic fuel is heatable at least in areas.

Abstract: Prior art fuel line check valves remain closed after engine off and cool down. Diurnal heating and the resultant pressure increase in the fuel line causes fuel vapor emissions through small openings in the fuel line (e.g., at the injector tips). The invention provides a check valve for a vehicle fuel line which opens in response to engine cooling and remains open while the engine is off to relieve subsequent increasing pressure in the fuel line due to diurnal heating thereof.

Abstract: The present invention provides an electronically-controlled fuel injector, for an internal combustion engine, comprising a downstream fuel injection valve located near an air intake port of each cylinder or inside a cylinder, an air intake passage which bypasses the throttle valve located upstream of a downstream fuel injection valve, and a fuel vaporizing section including an upstream fuel injection valve, and a heater which vaporizes fuel injected from the upstream fuel injection valve; and further having an air intake port located upstream of the throttle valve, air flow control section for controlling an amount of air, said fuel vaporizing section, vaporized-fuel branch section for supplying vaporized fuel to each cylinder, and a vaporized-fuel distribution passage which extends from the vaporized-fuel branch section to an opening located in each air intake pipe located downstream of the throttle valve.

Abstract: A slit-shaped heater holder 54 outside the heat-exchanger tube 55 can eliminate the use of adhesive in the heater assembly. A flat electrode 53 which is pressed on and in surface contact with the PTC heater 53 can improve the wear resistance of the heater contact, prevent the PTC heater breaking, and even assure the electrical connecting to the broken PTC heater.

Abstract: A manually guided implement having an internal combustion engine and a carburetor for supplying the engine with a fuel/air mixture is provided. A combustion air stream is drawn in through the carburetor by the engine. A warming medium heated up by the engine can be passed along the outer surfaces of the carburetor separate from the combustion air stream.

Abstract: A fuel delivery system is disclosed which includes an injector (40) having an end region (43). The end region (43) is provided from heat conducting material such as metal so that the end region can be heated by exhaust gas to heat the temperature of fuel in the injector end region so that the increase in temperature and pressure within the end region causes the fuel to flash into a vapour state immediately the fuel is ejected from the injector. The exhaust gas is supplied by an exhaust gas supply line (70, 402) and can be returned by an exhaust return line (405).

Abstract: A fuel supply system for use in an internal combustion engine, comprising: an intake passage; a downstream fuel injection valve near the port of each cylinder of the engine and downstream of the intake passage; and a controller, wherein the intake passage includes a fuel injection/evaporation device which has an upstream fuel injection valve; a heater for evaporating injected fuel; and an air passage for supplying the injected fuel with air. The controller is adapted to control the amount of fuel injected from the downstream fuel injection valve and the upstream fuel injection valve, thereby controlling the fuel-air ratio of the injected fuel.

Abstract: A device for mixture preparation in internal combustion engines, in which a fluid flow flows through a flow cross section of a bore, and the fluid flow is meterable by means of an actuatable throttle element, which is pivotable in a receiving bore of a housing. Between a wall of the bore and the outer circumference of the housing, hollow chambers for a heating or cooling medium are embodied in this housing.

Abstract: Atomizing air flowing in an atomizing gas passage is merged with a fuel spray to promote atomization of the fuel, and carrier air flowing in a carrier gas passage is merged with the fuel spray at a further downstream position so as to surround the fuel spray. By doing so, the atomized fuel spray is carried to the downstream side so as to prevent the fuel spray from adhering onto the wall surface. The starting-up performance, fuel consumption and exhaust gas cleaning of an internal combustion engine are improved in this way.

Abstract: A device for mixture preparation in internal combustion engines, in which a fluid flow flows through a flow cross section of a bore, and the fluid flow is meterable by means of an actuatable throttle element, which is pivotable in a receiving bore of a housing. Between a wall of the bore and the outer circumference of the housing, hollow chambers for a heating or cooling medium are embodied in this housing.

Abstract: This invention relates to an internal combustion engine, in particular of the self-igniting type, with a compressor, which is preferably connected to an exhaust gas turbine and is located in an intake flow passage for compression of the intake air, and with a charge air line leading to an intake manifold, the compressor operating independently of the engine, at least in the starting phase. To permit a quick and simple start-up of the engine at a low compression ratio the proposal is put forward that an air recirculation line controlled by a valve depart from the intake manifold, which opens into the intake flow passage upstream of the compressor, charge air line and air recirculation line forming a closed loop.

Abstract: A single cam reciprocating linked piston type engine utilizes a swing-link linking mechanism to make two pistons arranged at an included angle slide alternately up and down, or utilizes a linking-rod to make two pistons arranged on an identical axis reciprocate in the same direction. Each roller mounted in the piston skirt nestles tightly on the curved surface of a cam mounted on a main shaft, so as to transform reciprocating motion of the pistons into rotation of the main shaft. The engine has eliminated an inner cam and the complicated piston mechanism as compared with a conventional double cam internal combustion engine. It features a simple and compact structure, its output torque is able to be raised twice as much, and a speed reducer matched with the engine is simple in structure. It can replace double cam engines and conventional crankshaft and connecting-rod type engines and is applicable for use as a motor in various fields.

Abstract: An air and fuel system for carburetor and fuel injection engines that regulates the temperature of air and fuel that is mixed in the carburetor or fuel injector prior to introduction to the cylinders of the engine. A heater and associated filter located at the air intake side of the carburetor are activated by circulating heated fluid (coolant) contained within the engine cooling system. The coolant passes through the heater and an isolated chamber or conductor and the fuel line passes inside the coolant line within the heater surroundings so that air and fuel can be temperature regulated. Valves in the fuel line allow for proper mixture of air and fuel. A filter is sized to fit inside or outside the heater, and the heater and filter are encompassed by a cover to hold the components together.

Abstract: A fluid vaporization system comprises a first fluid inlet for receiving a first fluid, a second fluid inlet for receiving a second fluid, and a first discharge aperture for discharging the first fluid and the second fluid. A first connecting passage connects the first fluid inlet and the second fluid inlet in fluid communication with the first discharge aperture, mixes the first fluid and the second fluid to define a fluid mixture, and delivers the fluid mixture to the first discharge aperture. A third fluid inlet receives a third fluid and a second discharge aperture discharges the third fluid.

Abstract: An elongated fuel-air bypass is connected between an outlet port of a fuel-air mixing device and an inlet port of an intake manifold of an internal combustion engine. The elongated bypass apparatus includes an elongated bypass conduit formed of a thermally conductive material and which has sufficient length, exterior surface area and thermal conductivity to enable it to cause liquid fuel introduced through the fuel-air mixing device to change from a liquid state to a gaseous state prior entry into the one or more cylinders of the internal combustion engine. Turbulence creating mechanisms, such as venturis or baffles, are provided in the elongated bypass conduit for creating turbulence in the fuel-air mixture flowing therethrough. An after-air supply tube is provided to supply after-air near an upstream end of the fuel-air bypass conduit, and is controlled by an after-air valve to provide for a lean fuel-air mixture.

Abstract: A direct contact gas-to-liquid method and system for heating a liquid with a burning source being wholly submerged and producing-power is disclosed. A liquid is heated by an internal combustion engine means, which is submerged in a container and can utilize the inherent swelling power from the burning gases in the engine means to draw large air into the engine means to support the burning without any other drift device, and to further drive other devices supplying and heating the liquid in the heating method and the heating system.

Abstract: The present invention involves an apparatus for the induction of a fuel and air mixture into the combustion chambers of a multi-cylinder internal combustion engine. A partition divides a manifold into a first and second portion. The first manifold portion provides a similar quantity and composition of fuel and air to each cylinder's intake port cavity at any single moment. The fuel and air mixture contained within the intake port cavities which does not enter the combustion chambers flows into the second manifold portion along with any hot residual exhaust gases escaping from the combustion chamber. A fluid pump continuously recirculates the fluid mixture from the second manifold portion into the first manifold portion and the hot residual gases are thoroughly intermixed thereby increasing engine performance. Hot deflector surfaces are located in the first manifold portion and transfer heat to the fuel and air mixture increasing the percentage of vaporized fuel.

Abstract: An elongated fuel-air bypass is connected between an outlet port of a fuel-air mixing device and an inlet port of an intake manifold of an internal combustion engine. The elongated bypass apparatus includes an elongated bypass conduit formed of a thermally conductive material and which has sufficient length, exterior surface area and thermal conductivity to enable it to cause liquid fuel introduced through the fuel-air mixing device to change from a liquid state to a gaseous state prior entry into the one or more cylinders of the internal combustion engine. Turbulence creating mechanisms, such as venturis or baffles, are provided in the elongated bypass conduit for creating turbulence in the fuel-air mixture flowing therethrough. An after-air supply tube is provided to supply after-air near an upstream end of the fuel-air bypass conduit, and is controlled by an after-air valve to provide for a lean fuel-air mixture.

Abstract: A cold start fuel control system provided for use with an internal combustion engine of the type having at least one combustion chamber, an air/fuel passageway fluidly connected with the combustion chamber and the source of fuel. The fuel control system includes an annular heater having an interior annular wall disposed within the passageway. A cold start fuel injector has its inlet fluidly connected to the fuel source and an outlet open to the passageway such that fuel from the outlet flows into the interior of the heater. Whenever the operating temperature of the engine is below a predetermined level, fuel is selectively provided to the cold start fuel injector which injects fuel into the passageway. The fuel discharge from the cold start fuel injector is swirled so that at least a portion of the fuel from the cold start fuel injector impinges upon the annular heater and is thus vaporized.

Abstract: A water circulation system of a marine engine improves the consistency of engine combustion by stabilizing the temperature of water flowing through the engine water jacket and by heating the intake manifold to a temperature within a desired temperature range. The desired temperature range is defined so as to optimize fuel vaporization without significantly affecting the volumetric efficiency of the engine. The water circulation system includes a control valve which directs water flow through the circulation system according to the water temperature exiting the engine water jacket. The valve recirculates water between the engine water jacket and a recirculation path until the water temperature reaches a predetermined lower temperature limit. The control valve then allows a portion of the water to flow through a heating jacket around the intake manifold to heat the intake manifold.

Abstract: An apparatus including a first chamber in operative communication with a carburetor to receive carburetor fluid flow therefrom, directing such fluid flow through a central conduit into a second chamber in operative fluid communication with an intake manifold of an associated internal combustion engine, such that the central conduit is arranged for the heating and associated gaseous flow from the carburetor to the intake manifold.

Abstract: An apparatus (16) for preheating combustion fluids such as air, fuel or fuel-air mixtures upstream of the combustion chamber in an internal combustion engine (10). The apparatus (16) generally includes a heat exchanger (18) and an assembly (46) for heating the heat exchanger. The improvement involves constructing the heat exchanger (18) from a plurality of closely-packed beads (20) each having a spherical shape and each comprised of homogeneous aluminum filling the entire space within the outer spherical shape to provide a high surface area heat exchanger for heating the combustion fluid as the fluid passes around the beads.

Abstract: A carburetion system for an internal combustion engine includes fuel vaporizing gun which operates as a heat exchanger with heat from the engine exhaust manifold. The system may be manually or automatically operative when hot exhaust gases from the engine heat the gun to sufficient temperatures for vaporizing the fuel. A vapor fuel shut-off valve positioned on the vapor line to the engine intake ports regulates the air to gas mixture to a ratio of between 15 and 16 to 1, for maximum combustion, increased fuel mileage and reduced emissions.

Abstract: The present invention relates to the engine-building industry and can find application in the fuel feed system of internal combustion engines for preconditioning part of the flow of a rich fuel-air mixture fed to the main flow to decompose liquid fuel and convert it into a gas. A technical aim of the present invention consists in an increased fuel economy of the engine, reduced toxicity of exhaust gases, and use of a cheaper low-octane fuel. A method for preparing fuel-air mixture consists in that the flow of an overrich fuel-air mixture is additionally heated, before mixing it with the other flow of fuel-air mixture, by passing it through a promoter heated above the mixture ignition temperature, thus providing repeated contact of the flow with the promoter surface.

Abstract: A system for providing an air-fuel vapor mixture to an engine for improving completeness of combustion and also reducing emissions. The system includes a vaporizer within which a series of baffles are disposed such that air and fuel pass along a tortuous passageway defined within the vaporizer. Exhaust gases provide heat to the vaporizer, and as air and fuel pass along the passageway of the vaporizer, a homogenous air-fuel vapor mixture is produced, with the homogenous mixture exiting the vaporizer being supplied to the engine by way of an adapter plate assembly. When used with a carburetor, the adapter plate is disposed between the carburetor and the engine.