Abstract: An IC engine fuel supply system (10) having a vaporization chamber (30) which has a foam mantle (48) for suspending fuel in a flow of air from a venturi inlet (72) for vaporizing the fuel. The vaporized fuel is mixed with the air in a mixing chamber (32) and then conveyed to an intake manifold of an IC engine. The system (10) improves the efficiency of the combustion of the fuel and reduces the amount of pollution produced.

Abstract: A method and a device of controlling the amount of fuel delivered to a combustion engine (1), e.g. of two-stroke or four-stroke type, wherein the fuel is supplied through an intake passage (2) intended to deliver air (3) and fuel (4) to the cylinder (5), said intake passage being opened and closed by a piston (6) or by a special valve (7). The fuel supply to the intake passage (2) is effected upstream from the piston (6) or the valve (7) and in response to the opening and closing of the intake passage (2) varying flow speeds and pressures are produced in the passage and the fuel supply system (8) is of a kind the supply amount of which is substantially affected by this variation, such as a carburetor (9) or a low-pressure injection system (10).

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: An improved rotor-type carburetor for use with an internal combustion engine is provided which, in one embodiment, is adjustable to selectively vary its constant fuel-air ratio by axially moving an internal body portion thereof relative to the turbine rotor assembly of the carburetor. Alternatively, the constant fuel-air ratio of the carburetor may be altered simply by replacing such internal body portion with a differently configured one. Undesirable fuel delivery from the turbine rotor to the engine during turbine spin-down is significantly diminished through the use of an internal fuel reservoir structure, formed within the carburetor body, which functions to capture and retain unneeded fuel discharged from the rotor during turbine spin-down periods. During turbine spin-up periods (e.g., when the engine is being started) the reservoir-retained fuel is released into the engine's incoming air stream to hasten fuel delivery to the engiune during initial portions of turbine spin-up periods.

Abstract: An engine carburetor and related methods, the disclosed carburetor comprising (a) an atomizing section comprising several fuel/air mixing sites where a high degree of vaporization and homogenization is achieved, (b) a crankcase fume recycling section, (c) a main air intake section, (d) a fuel metering section and (e) an excess fuel removal and fuel recycling section.

Abstract: An overflow device for a vehicular carburetor. The carburetor includes a float chamber in which a maximum level is to be maintained. A drainage tube drains fuel at higher levels to a reservoir at an elevation lower than the carburetor. A vent tube vents the reservoir at an elevation higher than the carburetor. The reservoir can be heated by engine heat to evaporate excess fuel.

Abstract: Disclosed herein is a carburetor comprising a first stage including a vertically extending primary air induction passage including a venturi section and a portion downstream of and below the venturi section, a primary fuel passage communicating with the venturi section of the primary air induction passage and with a fuel source, and a primary throttle valve mounted in the downstream portion of the primary air induction passage for movement between a partially open position and a fully open position, and a second stage including a vertically extending secondary air induction passage including a venturi section and a portion downstream of and below the venturi section, a secondary fuel passage communicating with the venturi section of the secondary air induction passage and with a fuel source, and a secondary throttle valve mounted in the downstream portion of the secondary air induction passage for movement between an open position and a closed position, and a fuel or air passage communicating between the prim

Abstract: Apparatus and method for recovering fuel from the induction system of an internal combustion engine having a carburetor, comprising one or a plurality of collectors along the fuel path between the carburetor throttle valve and the inlet valves of the engine, the collectors being in the form of annular recesses in the walls of the ducts, which recesses act to trap fuel which flows back as a liquid condensed onto the inlet manifold pipes as a reaction to the closure of the associated inlet valve of the engine. Each collector is connected by a drainage systems of conduits via expansion tanks and a pump, to the petrol tank of the engine and/or to the inlet to the carburetor whereby fuel which condenses prior to being drawn into the engine can be recycled for vaporization thereby avoiding its entry into the engine as a liquid.

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: 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.