Abstract: A method of separating a feed stream in a distillation tower. Vapor is permitted to rise upwardly from a distillation section of the distillation tower. A feed stream is introduced into a controlled freeze zone section of the distillation tower, the controlled freeze zone section being situated above the distillation section. The feed stream is released above a level of a liquid retained by a melt tray assembly in the controlled freeze zone section. Vapor from the distillation section is directed into the liquid retained by the melt tray assembly. A solid is formed from the feed stream in the controlled freeze zone section.

Abstract: A carburetor base of an engine defines an axial through hole and a pulsation hole channel. An anti-blocking component is mounted inside the axial through hole and defines an air inlet channel. The air inlet channel communicates with the pulsation hole channel so as to avoid blocking of condensed fuel oil inside the pulsation hole channel.

Abstract: The claimed invention teaches direct contact steam injection heater capable of handling steam pressure in excess of 300 psi. Specifically, the invention provides: a fixed upper seal assembly situated between the diffuser base and the diffuser which is designed to prevent the flow of steam around the regulating member into the diffuser.

Abstract: The methods and the apparatuses of an aeration equipment are described. A floatable aeration equipment with mobility at least has a floatable apparatus, a plurality of aeration apparatuses, and a controller. The thrust causing the motion of the aeration equipment is generated from the aeration apparatuses while aerating. The moving directions and positions of aeration equipment are controlled by a controller, which switches on/off a power source of one or more selected aeration apparatus.

Abstract: A fuel enrichment cold start/run circuit and method pumps fuel from the fuel pump to an enrichment circuit inlet independently of a carburetor float bowl such that the enrichment circuit is supplied with fuel regardless of the orientation of the float bowl, including angular orientation.

Abstract: An apparatus for mixing a liquid with a large gas stream flowing in a gas duct, especially for introducing reducing agent into flue gas containing nitrogen oxides. At least one metering lance having at least two atomizer nozzles supplies liquid to the gas stream, with the nozzles being inclined relative to the direction of flow of the gas stream and being inclined in opposite directions relative to one another. At least one disk-shaped mixer element is associated with and spaced from the nozzles, and is inclined relative to the direction of flow of the gas stream. Flow eddies form at the mixer element, and at least a portion of the liquid enters the flow eddies. Atomization is effected in such a way by the mixer element that volatilized gaseous portions in the nozzle streams exiting the nozzles enter the flow eddies, while non-volatized droplet portions, due to their inertia and an atomizer angle, do not enter the flow eddies in the vicinity of the mixer element.

Abstract: A carburetor for an internal combustion engine has an intake pipe having a throttle valve plate therein. An annular venturi tube is disposed upstream or downstream of the throttle valve plate inside the intake pipe. The annular venturi tube is located at a predetermined interval with the throttle valve plate. The annular venturi tube has a fine continuous annular slit or four or more annularly arranged fuel discharging pores so as to atomize the fuel thereat. Atomization is always carried out near a position where a fastest air moves so as to improve the atomization and a uniform air-fuel mixture, thereby improving an output, fuel consumption and exhaust gas emission of the internal combustion engine.

Abstract: An internal combustion engine including a cylinder, a crankshaft, a reciprocating piston disposed in the cylinder and operably coupled to said crankshaft, and a carburetor.

Abstract: A fuel metering system for a combustion engine carburetor utilizes a non-convoluted, planar, flexible diaphragm which does not require a molding process to form a traditional convolution. The diaphragm defines in part a pressure controlled fuel metering chamber on one side and a reference chamber at atmospheric pressure on the other side. During operation of the engine, sub-atmospheric pressure within a fuel and air mixing passage draws fuel from the metering chamber to mix with air for combustion within the engine. As pressure within the metering chamber thus decreases, the diaphragm flexes into metering chamber. The displacement of the diaphragm actuates a flow control valve of the metering system which flows pressurized make-up fuel into the metering chamber until the diaphragm returns to its datum position.

Abstract: An internal combustion engine including a cylinder, a crankshaft, a reciprocating piston disposed in the cylinder and operably coupled to said crankshaft, and a carburetor.

Abstract: A carburetor for supplying fuel to an engine includes a body defining a venturi and first and second fuel lines fuel lines which discharge fuel into the venturi from a fuel reservoir. The opening of the first fuel line into the venturi is near the wall to flow fuel into the air flow adjacent the body wall. The opening of the second fuel line into the venturi is away from the wall to flow fuel into the air flow through the interior portion of the venturi.

Abstract: An internal combustion engine including a cylinder, a crankshaft, a reciprocating piston disposed in the cylinder and operably coupled to said crankshaft, and a carburetor.

Abstract: A modular diaphragm carburetor is provided which has a plurality of plates each with generally planar faces adapted to be mated and releasably connected together to facilitate manufacturing and assembling the carburetor and to permit various plates and components of the carburetor to be used in carburetors designed for use with different engine families. By providing a plurality of mated together plates, the machining of the passages through the carburetor is made dramatically easier when compared to the machining of a carburetor having a single body with end caps. Still further, the modular diaphragm design permits different plates and/or components of the carburetor to be used with other components to provide a carburetor having different performance characteristics and suitable for use with a different engine family.

Abstract: A carburetor having a plurality of restricted fluid flow paths upstream of a fuel and air mixing passage to inhibit the passage of large fuel vapor bubbles through the fuel paths and to the fuel and air mixing passage. Desirably, the restricted flow paths constrain large volume vapor bubbles and clusters of bubbles from passing therethrough undistributed in the fuel to prevent an inconsistent or overly lean fuel and air mixture from being delivered to the engine. At least two restrictive flow paths diffuse, separate, and/or break up the large vapor bubbles and clusters into a plurality of smaller vapor bubbles which are more uniformly distributed within the liquid fuel flowing through the carburetor to provide a more consistent flow of fuel to the engine.

Abstract: A carburetor having a plurality of orifices at different locations adjacent to the sidewall of the airflow passage therethrough and connecting passages communicating the orifices with a fuel source, such that different airflow conditions through the airflow passageway will generate different negative pressure conditions in the respective orifices and connecting passages, such that fuel will be drawn to the airflow passageway through the orifice or orifices and connected passage or passages with the greatest negative pressure conditions therein, a primary operational result being fuel delivery capable of rapidly changing corresponding to rapidly changing airflow conditions in the airflow passageway corresponding to changing operating conditions.

Abstract: A carburetor device (10) having a plurality of apertures (12) circumferentially positioned and equally spaced around an orifice (14) portion of the carburetor device (10). The apertures (12) have a cross sectional area dimensioned to allow an air-fuel mixture to flow therethrough when a throttle member requires maximum power and corresponding air-fuel flow rates. The apertures (12) direct the air-fuel flow (30) through a “puddle” (27) of fuel that has accumulated in the bottom portion (28) of an outer well (18) of the carburetor (10) during the normal operation of an internal combustion engine. When maximum power is required from the engine, the increased air-fuel flow through the apertures (12) causes the fuel puddle (27) to vaporize or “mist”, allowing the fuel to become a part of the air-fuel flow stream supplying the engine's cylinders (25) thereby increasing the engine's power and response while decreasing the engine's hydrocarbon emissions.

Abstract: Methods of operating a diaphragm type carburetor to facilitate the atomization of fuel in the diaphragm-type carburetor are disclosed. Particularly, methods of operating a diaphragm-type carburetor having a check valve installed in a fuel passage leading from a constant-fuel chamber to a main nozzle, and an air bleed passage connected at a position on the downstream side of the check valve are disclosed. Moreover, techniques for operating a diaphragm-type carburetor having a main nozzle including nozzle openings facing downstream with respect to the engine intake air flow are also disclosed, wherein the nozzle openings are located in a tubular member cutting across a central axial line of the venturi so that the tubular member bridges the neck of the venturi.

Abstract: The carburetor includes a fuel holding chamber, an air flow passageway, a primary fuel delivery circuit including a primary fuel delivery passage communicating with the fuel holding chamber for receiving a first flow of fuel therefrom and with a primary fuel delivery orifice communicating with the air flow passageway, at least one secondary fuel delivery circuit including an inlet for receiving a second flow of fuel separately of the first flow of fuel and at least one orifice in communication with the inlet and with the air flow passageway, and at least one connecting passage communicating the at least one secondary fuel delivery circuit with the primary fuel delivery circuit for allowing transfer of the flows of fuel between the circuits through the connecting passage.

Abstract: The present invention serves to facilitate atomization of fuel in a diaphragm type carburetor for all-purpose two-cycle engines. A check valve used to prevent back flow is installed in the fuel passage leading from a constant-fuel chamber to a main nozzle, and an air bleed passage is connected at a position on the downstream side of the check valve. The main nozzle is constructed by forming nozzle openings which face downstream with respect to the engine intake air flow. The nozzle openings are located in a tubular member which cuts across a central axial line of the venturi so that the tubular member bridges the neck of the venturi.

Abstract: A main carburetor body has generally cylindrical bores into which are precisely and removably fitted liners. The inner liner surfaces are contoured as a venturi wherein a circular inlet section narrows down to a throat after which the outlet section gradually expands in flow area. Fuel discharges into the venturi through a plurality of ports in the venturi wall, these ports being located around the periphery of the venturi and generally in the vicinity of the venturi throat. Booster venturis, which in conventional carburetors obstruct the flow path, are not used. The carburetor is readily modified by removing the liners and installing a new set of liners which may have different dimensions for the venturi and a different port pattern for fuel inlet to the venturi.

Abstract: The invention relates to a fuel metering and distribution system for an internal combustion engine comprising an open fuel reservoir 18 into which fuel is metered and a set of capillary tubes 20 each extending from the fuel reservoir 18 to a point in an induction manifold adjacent the intake valve of a respective one of the engine cylinders. The fuel may either be metered by a carburettor-like arrangement drawing fuel from a float chamber or by means of a single solenoid valve connected between the reservoir and a source of fuel under pressure. The ends of the fine tubes terminate in the fuel reservoir immediately above the fuel level, whereby as the fuel rises, the additional fuel metered into the reservoir is sucked into the fine tubes and transferred directly to the engine cylinders.

Abstract: A device for carburetting air and fuel includes, a housing having its wall confining a main air passage of converging-diverging shape, an annular chamber around the diverging portion of the passage, a plurality of tubes for sucking the fuel from the annular chamber and spraying it at the throat portion of the passage. The walls of the tubes are respectively provided with a plurality of openings which are communicated with pilot air inlet passages branching off the main air passage. The on and off positions of the openings are controlled by an automatic pressure sensitive system so as to adjust the fuel-to-air ratio of the fuel feed. A throttle valve is provided at the throat portion for controlling the rate of the fuel-air mixture flow.

Abstract: A modular addition to a modular constructed carburetor is disclosed having a manually adjustable control for selecting any of a plurality of fuel jets. A plurality of jets located in the modular addition are individually selectable from a remote location such as the dashboard of a vehicle allowing the driver to select desired fuel jets for the driving conditions encountered thereby maintaining a measure of control over the air/fuel ratio of the mixture flowing from the carburetor.

Abstract: A variable venturi carburetor is disclosed which includes a mixture conduit having therein a throttle plate, a fixed venturi, and a vacuum sustaining plate for variably opening and closing the throat of the fixed venturi. A first fuel nozzle opens into the mixture conduit at a point on the downstream side of the vacuum sustaining plate. An electromagnetic valve is provided for controlling the amount of fuel drawn from the auxiliary fuel nozzle so that it can vary in accordance with the degree of opening of the vacuum sustaining plate but is held at a level when the degree of opening of the vacuum sustaining plate is over a predetermined level. A second fuel nozzle is provided which opens into the mixture conduit at a point on the upstream of the vacuum sustaining plate for allowing discharge of fuel in amounts proportional to vacuums appearing in the mixture conduit upstream of the vacuum sustaining plate.

Abstract: A carburetor for gasoline internal combustion engines includes a generally cylindrical housing having an intake air receiving section. A fuel atomization and distribution device is mounted in the housing immediately below the intake air receiving section. It comprises an upper ring-like insert having twelve equally spaced openings extending through the ring to form auxiliary air bleeds for the carburetor. Mounted beneath the upper insert is a second ring-like insert comprising a generally annular outside wall, a conically-shaped interior wall and a generally annular top wall. The outside wall includes a tapered section that forms the fuel distribution channel for the carburetor. Twelve generally rectangularly shaped fuel supply channels are formed in the top wall of the insert in alignment with the openings formed in the first insert and in communication with the tapered section.Within the carburetor a regulating member is mounted for longitudinal movement.

Abstract: A variable venturi carburetor comprised of an open carburetor body enclosing an interior first venturi member and coaxial peripheral second venturi member. The second venturi member is integral with the carburetor body and defines a peripheral annular fuel dispensing orifice. The first venturi member is movable relative to the second venturi member along an upright axis. The venturi members together define an annular restricted air passage adjacent the fuel dispensing orifice that may be varied in size to increase or decrease the volume and velocity of air passing by the orifice. Fuel is supplied from an annular fuel chamber to the orifice in response to movement of air thereby. Various air bleed provisions are made to insure proper air-fuel mixing throughout the entire operational range of the engine on which the carburetor is attached.

Abstract: A variable venturi downdraft carburetor comprised of an open carburetor body enclosing an interior first venturi member and coaxial peripheral second venturi member. The second venturi member is integral with the carburetor body and defines a peripheral annular fuel dispensing orifice. The first venturi member is movable relative to the second venturi member along an upright axis. The venturi members together define an annular restricted air passage adjacent the fuel dispensing orifice that may be varied in size to increase or decrease the volume and velocity of air passing by the orifice. Fuel is supplied from an annular fuel chamber to the orifice in response to movement of air thereby. Various air bleed provisions are made to insure proper air-fuel mixing throughout the entire operational range of the engine on which the carburetor is attached.

Abstract: An air valve type carburetor is described having an enlarged mixing chamber in an induction duct. Fuel is supplied to the mixing chamber at a plurality of annularly spaced locations about the circumference of the mixing chamber. An air valve having an umbrella-shaped disc is positioned at the entrance to the mixing chamber for regulating the flow of the air into the mixing chamber in response to the vacuum pressure prevailing in the mixing chamber. The air valve is designed to direct the air radially outward over the disc and along the periphery of the mixing chamber and to create a pressure depression behind the valve to cause the air to flow radially inward in a turbulent eddy into the central portion of the mixing chamber to thoroughly mix the fuel with the air. Fuel is metered to the mixing chamber in amounts responsive to the manifold pressure, atmospheric pressure and mixing chamber pressure. Additionally, the fuel is premixed with air prior to discharge into the mixing chamber.