Abstract: This disclosure relates to a centrifugal vortex system for preparing a liquid, such as fuel and includes a chamber housing defining a vortex chamber. An array of tangential apertures are formed in the chamber housing to permit fluid to be turbulently introduced into the vortex chamber to create a vortical flow of fluid through the vortex chamber. In one embodiment, a plurality of vortex chambers are arranged in series to allow the fluid to pass through several vortex chambers. In other embodiments, the chamber housing may be stepped, textured, or both to increase the turbulence of the flow through the chamber. In yet another embodiment, a pressure differential supply jacket is provided to normalize the amount of flow through the tangential apertures according to the location of the apertures. A centrifuge chamber is also disclosed which has a plurality of output conduits on a bottom surface and a tapered extension member downwardly extending from a top surface to enhance the centrifugal flow of the fluid.

Abstract: A structural improvement on a carburetor for motorcycles, and more particularly relating to a carburetor provided with an oil re-atomizing device intends to ensure an almost complete atomization of injected oil before delivery into a combustion chamber of an engine. Near the middle of a horizontally extended air passage of the carburetor is disposed a smoothly enlarged section having an increasingly expanded diameter so as to permit a re-atomizing device to be mounted to the end of the section. The re-atomizing device is made up of a cone-shaped head portion and a circular supporting bracket that are fixed together by a screw. Oil sucked into the air passage via a needle controlled oil supply passage is brought into direct collision against the round ended cone-shaped head portion of the re-atomizing device.

Abstract: This invention relates to a system and process for fuel or liquid preparation including a plurality of vortex stacks of sequential vortex elements operationally coupled with an integrated pre-manifold centrifuge type-cyclone scrubber. Each vortex stack comprises a base vortex element having a fuel-air mixture enters such base vortex element creating a vortical (spinning) column, which is enhanced and accelerated by transonic-sonic velocity air inflows in the accelerator vortex elements. Entrained fuel aerosol droplets are sheared into a viscous vapor phase, and then into a gas-phase state. The vortical column containing turbulently vaporized fuel and any residual aerosols in the air mixture is then passed through a venturi to the scrubber where the mixture is homogenized and any collected aerosols are returned as liquid and re-processed by the system. This allows only the vaporized, chemically stochiometric (oxygen balanced) and combustion ready gas-phase fuel to exit the system.

Abstract: This invention relates to a system and process for fuel or liquid preparation including a plurality of vortex stacks of sequential vortex elements operationally coupled with an integrated pre-manifold centrifuge type-cyclone scrubber. Each vortex stack comprises a base vortex element having a fuel-air mixture input followed by varying arrangements of air-accelerator vortex elements. An electronic fuel injection managed fuel-air mixture enters each base vortex element creating a vortical (spinning) column, which is enhanced and accelerated by transonic-sonic velocity air inflows in the accelerator vortex elements. Entrained fuel aerosol droplets are sheared into a viscous vapor phase, and then into a gas-phase state. The vortical column containing turbulently vaporized fuel and any residual aerosols in the air mixture is then passed through a venturi to the scrubber where the mixture is homogenized and any collected aerosols are returned as liquid and re-processed by the system.

Abstract: A carburetor and a fuel seeding system having the same including an air suction passageway through which air is fed, and a fuel feeding passageway which is disposed so as to be intersected to the air suction passageway and through which fuel is fed, the air suction passageway and the fuel feeding passageway being intercommunicated to each other. A roughened surface portion is formed on a wall surface of at least one of the air suction passageway and the fuel feeding passageway to generate turbulence in fluid flow and promote carburetion and granulation of the air-fuel mixture due to the turbulence. The tip portion of a jet needle serving as a part of the fuel feeding passageway may be provided with a substantially flat surface portion or a substantially conical surface portion having a vertical angle above 145 degrees.

Abstract: An intake flow booster is provided for insertion between the carburetor and intake manifold of an internal combustion engine which includes a series of downwardly depending tubes having an internal frustro-conical shape. The fuel/air mixture leaving the carburetor passes through a well in the manifold plate and into the manifold tubes whereby the mixture flows more efficiently to the engine providing a higher performance and greater horsepower.

Abstract: A rotor-type carburetor is provided with a specially designed spray ring which centrifugally discharges atomized fuel droplets in two different sizes for mixture with engine-ingested air traversing the interior of the carburetor and driving its rotor section. Larger droplets are forced outwardly through an annular series of discharge openings formed in the ring, while smaller droplets are formed by the passage of fuel over an annular spray edge extending around the bottom of a radially inwardly bent lower end portion of the ring. This simultaneous formation and discharge of two series of differently sized atomized fuel droplets improves the overall performance of the engine and reduces the level of its emission pollutants. The spray ring also functions to automatically vary, in a predetermined manner, the flow rate relationship between the differently sized fuel droplets as a function of engine speed to further enhance engine performance.

Abstract: A variable venturi carburetor according to this invention is so arranged that during low load operation with a small degree of opening of the throttle valve, the suction piston is moved forward corresponding to a reduced amount of suctioned air to make a width of the venturi portion narrow and maintain negative pressure in the venturi portion at a constant level, fuel suctioned from the float chamber is gauged in an amount thereof under the cooperation of the metering needle with the metering jet and then ejected from the main nozzle, the ejected fuel strikes upon the head of the suction piston due to inertia thereof and then flows down along the surface of the head, the fuel collecting at the lower surface is received in the fuel receiver and flows down through the path formed in the wall of the barrel into the intake manifold in an atomized state, bypassing the throttle valve.

Abstract: A liquid such as a hydrocarbon fuel is sprayed electrostatically into a gas tream. Spraying is achieved by supplying the liquid to a porous member having a plurality of termini within an electrostatic field. The electrostatic field strength is enhanced at the termini so that liquid which soaks through the porous member to the termini breaks up under the influence of the locally high electrostatic field into a stream of droplets which are repelled by their charge away from the termini. The droplets become finely dispersed in a passing gas stream.The invention finds particular application as an electrostatic carburettor for dispersing petrol into an air stream for combustion in an internal combustion engine. The invention can also be utilized for re-dispersing fuel droplets deposited on the wall of an air/fuel intake.

Abstract: A carburetor for small engines which can be used in all positions utilizes a cylindrical rotary throttle valve with a venturi opening and provides a porous material as a part of the throttle valve, either as the entire material for the valve, or as a sleeve surrounding the venturi portion. During idling the fuel which might collect in a pocket in the valve is absorbed into the porous material and sucked into the engine, thus avoiding the disadvantages of liquid fuel being dumped into the engine when the position of the carburetor is changed.

Abstract: An all-position carburetor having an air fuel mixing passage with a rotary throttle valve rotatably disposed in the carburetor body across the mixing passage. The throttle valve has an opening therethrough to provide a venturi passage in conjunction with the mixing passage. A by-pass groove is formed in the outer surface of the rotary valve on the bearing surface of the body to allow fuel which might otherwise accumulate in a pocket, in certain positions of the carburetor, to flow into the main air fuel mixture, thus avoiding overrich conditions when the carburetor is turned from one position to another.

Abstract: A carburettor for an internal combustion engine is provided with a porous material of very fine porosity of less than 12.mu. at a part or parts where a difference in pressure is developed within the carburettor from a relatively low pressure to a relatively high pressure in the direction of the air-fuel stream by a displacement of linear flow of the air-fuel stream.

Abstract: An air-fuel mixing device adapted to be disposed between the carburetor throttle valve and the intake valve of an internal combustion engine comprising a housing, which is larger in diameter than the diameter of either the inlet or the outlet thereto, or therefrom, which inlet communicates with the air-fuel outlet passage of a carburetor and which outlet opening communicates with the intake opening of an intake manifold. Because of the size and shape of the mixing chamber, the air-fuel mixture therein is mixed by divergence and convergence of the air-fuel flow and since the chamber is substantially devoid of any baffles or protuberances, a whirlpool effect of the air-fuel flow is present because of the natural forces of gravity.

Abstract: The accumulator chamber communicates with the atmosphere through a passage which is formed therein with a restriction for restricting the cross sectional area of the passage or which is provided therein with a pressure control valve for opening the passage in response to a difference between the atmospheric pressure and the vacuum in the accumulator chamber which difference is above a predetermined value to maintain the vacuum differential between the accumulator and vacuum chambers above a predetermined value when the engine suction vacuum is above a predetermined value.

Abstract: An intake system of an internal combustion engine having a carburetor with a primary venturi and a secondary venturi concentrically disposed within the primary venturi by a bridge member which extends into contact with an inner wall of a throat portion of the primary venturi. A fuel delivery conduit is disposed within the bridge member and spans the secondary venturi with its leading end sealingly received in the side of the secondary venturi opposite the bridge member. The fuel delivery conduit is inclined with respect to the axis of the secondary venturi so that the leading end portion of the conduit extends in an upstream direction. The fuel delivery conduit also has an opening through which fuel is dischargable. A single needle member is fixedly attached to the bottom of the secondary venturi and projects in a downstream direction with respect to the flow of the air passing through the secondary venturi.

Abstract: A new and novel method and means for injecting a cold charge of fuel into an engine to significantly reduce all exhaust pollutants well below the limits required by law.

Abstract: An automatically regulated variable orifice desuperheater valve is disclosed which includes improved constructional features providing for a more compact installation then heretofore, one which is more reliable in operation and which is at the same time more economical to construct. The desuperheater unit has a welded-closed housing, which includes a concentrically mounted valve guide structure. The lower portion of the desuperheater valve housing structure is arranged so that, after the unit is welded closed, with the valve guide structure contained therein, the valve element may be inserted into the housing from the bottom or inlet opening, followed by a shouldered sleeve which functions as the valve seat. The sleeve is seated against a facing shoulder in the inlet opening of the valve housing, and is secured against such shoulder by appropriate means such as welding.

Abstract: A carburetor comprising catching means for catching fuel deposited on the inner wall of a main air passage in the form of liquid and then flowing downstream therefrom and a passage means for delivering the liquid fuel thus caught to a carburetor throat, wherein the recovered liquid fuel is again ejected into the main air passage through an opening formed at one end of said passage means by negative pressure in the carburetor throat.

Abstract: A device for vaporizing the gasoline droplets in air-fuel mixtures from conventional carburetors to improve fuel combustion in internal combustion engines. The device has a relatively thin, box-shaped body enclosing flat upper and lower chambers separated by a thin aluminum partition, the chambers being of equal size and shape. The body has an opening in its top into the upper chamber, offset from the longitudinal center of the chamber, and an aligned opening in its bottom, and is designed for installation between the carburetor and intake manifold of an internal combustion engine. The thin aluminum partition has two transverse slots, one offset in one longitudinal direction and the other offset in the other longitudinal direction from the aligned openings in the body of the device. When the device is in use, air-fuel mixtures from the carburetor pass into the upper chamber from the opening in its top, where they are deflected in the direction of one or both of the transverse slots.

Abstract: A device for atomizing liquid fuel charges includes a support member having at least one frusto-conical bore formed therethrough. A grid is disposed within the bore to break down liquid fuel into minute mist particles. The device further includes a recirculation system for drawing off excess mist present in the bore. The instant device is particularly adapted for use in internal combustion engines.

Abstract: There is disclosed an apparatus for ensuring maximum vaporization of fuel before entry into the intake manifold of an internal combustion engine. The apparatus comprises an extension of the carburetor which separates vaporized fuel from droplets of fuel which remain unvaporized or which are condensed before entering the intake manifold. The unvaporized fuel is collected and subjected to heat generated at the engine exhaust pipe. In particular, heated ambient air heats and vaporizes the unvaporized fuel. The thusly vaporized fuel is then re-introduced into the fuel-air mixture exiting the carburetor, and subsequently enters the intake manifold.

Abstract: A fuel separating device adapted to be connected between a carburetor and the intake manifold or integrally built into the intake manifold of an internal-combustion engine for removing excess fuel from the fuel-air mixture provided by the carburetor. The device comprises a housing having upper and lower chambers that are separated by a plate having a plurality of upright tubular members which communicate the upper chamber to the lower chamber. The device has an inlet port communicating the upper chamber to the outlet of the carburetor and an outlet port which communicates the lower chamber to the inlet of the manifold such that a fuel flow passage is provided for directing the fuel-air mixture from the carburetor to the manifold, while excess fuel droplets carried by the mixture are deposited at the bottom of the upper chamber. Means are provided for drawing off the excess fuel and returning it to the fuel supply tank.

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: The present invention replaces the conventional fuel pump and carburetor and is designed to mechanically change liquid gasoline to a vapor state and allow/direct vapor into engine intake air stream, wherein the vaporized fuel mixes with the air to form an air-fuel mixture. The apparatus is provided with a series of electric controlled solenoids that control nozzles that spray pressurized fuel from a fuel supply pump. This spray is allowed/directed into aforesaid intake air stream of associated engine.

Abstract: An internal combustion engine having an air flow sensitive fuel sink-distribution-source arrangement that intercepts the liquid fuel film on the intake passage wall adjacent the intake port entry to the combustion chamber and accumulates this fuel on reduced air flow and releases the accumulated fuel to the intake port on increased air flow while distributing the accumulated fuel about the intake port.