Abstract: A method and apparatus for applying a foamed mixture of paints on a structural surface. A continuous stream of high velocity gas moves through a nozzle and is directed toward the structural surface, and two or more paints may be intermittently moved into the gas stream of the nozzle and aerated and mixed with each other and moved with the gas stream to form a foam that is applied to the structural surface. The components of the foamed mixture may include single component or plural component materials such as polyurethane foam, adhesive, and polyurea formulations, and may be moved through a volumetric metering device consisting of material heaters, a heated hose, and an applicator gun. The nitrogen gas stream fluidizes the mixture as it passes through and out of the nozzle and forms the mixture into a foam that is applied to the structural surface.

Abstract: An electronic throttle body with an improved structure includes a throttle body. A plurality of vertically through airflow channels are provided on the throttle body, and a butterfly valve controlling a vent flow and a fuel atomizing ring configured to atomize fuel are arranged in each airflow channel. Centers of one or more butterfly valves are connected in series through rotating shafts to implement linked flipping, the rotating shafts are arranged parallel to each other, a drive gear is fixedly mounted to one end of each rotating shaft extending out of the throttle body coaxially, and the rotating shafts rotate synchronously through a servo driving apparatus. The servo driving apparatus and electrically controlled sprays respond synchronously, thereby improving the combustion efficiency of fuel in an engine. When the engine is idle, butterfly valves are directly driven through the servo driving apparatus to accurately control an air inflow of the engine.

Abstract: A valve having a flow trim assembly that can be quickly and efficiently removed and repaired or replaced. A body section having a central through bore that defines an inlet, an inner chamber or space, and two selectable outlets. Further the selectable outlets can direct flow in either a 90 degree “angle” orientation or at straight “in-line” orientation. An actuator stem extends into the inner chamber. A first (movable) trim member is attached to the rotator, and can be selectively rotated relative to a second (fixed) trim member. The first and second trim members cooperate to adjust flow opening through the valve. A valve bonnet that allows direct coupling of an actuator to the valve.

Abstract: In at least some implementations, a fuel metering valve, includes a bobbin defining a passage and having one or more voids in the surface of the bobbin that defines the passage, aa wire coil around the bobbin and an armature. The armature is received within the passage in the bobbin and movable relative to the bobbin from a first position to a second position when electricity is supplied to the wire coil.

Abstract: According to one or more embodiments, a fluid catalytic reactor may include a riser, a lower reactor portion, a transition portion, and a flow director. The riser may include a cross-sectional area, and the lower reactor portion may include a cross-sectional area. The transition portion may attach the riser to the lower reactor portion. The cross-sectional area of the riser may be less than the cross-sectional area of the lower reactor portion such that the transition portion is tapered inward from the lower reactor portion to the riser. The flow director may be positioned at least within an interior region of the transition portion. The flow director may include a body which affects the velocity profile of fluids moving from the lower reactor portion to the riser.

Abstract: A fuel turbine and a throttle body in a fuel system for an internal combustion engine. The fuel turbine includes a fuel turbine housing. The at least one fuel turbine output port is oriented substantially parallel to the fuel turbine housing axis and coupled to the throttle body. A primary fan capable of circumferential rotation and a secondary fan adapted for opposite circumferential rotation are oriented substantially parallel to the fuel turbine housing axis such that atomized fuel enters the fuel turbine input port to be forced by the primary fan and secondary fan into a higher pressure condition before exiting the fuel turbine housing by the at least one fuel turbine output port.

Abstract: A hydraulic tool having a body, a frame in which a stationary tool for machining a workpiece and a movable tool are disposed, a cylindrical piston, and a rapid-advance piston connected to the body, wherein the rapid-advance piston has a barrel part being in contact with the piston, a connection part disposed at the rear end of the barrel part and connected to the body, a screw part formed in the connection part, and a D-cut face formed on the barrel part. A fixation member disposed in the body so as to be positioned in the vicinity of the D-cut face is also provided. The D-cut face is formed along a direction orthogonal to a line that connects the center point of the barrel part to the center point of the fixation member, and the rapid-advance piston is prevented from rotating by the fixation member.

Abstract: A valve for dispensing water and air in installations for spraying water under pressure, includes: firstly, a body (2) equipped with two independent circuits (C1, C2), each for circulating a fluid, one air, the other water, each of the circuits including (i) a chamber (5, 15) accommodating a shutter member (6, 16) in the form of a spool, (ii) a duct (7, 17) for admitting the fluid, (iii) a discharge duct (8, 18) for discharging the fluid, and (iv) a drain duct (9, 19) for draining the fluid contained in the discharge duct; and, secondly, control elements for controlling the shutter members so as to make each one move between an open position which allows the fluid to pass and in which the drain duct is shut off, and a closed position in which the fluid is prevented from passing and the drain duct is open.

Abstract: A plunger lifting mechanism of a rotary-valve gas carburetor includes a carburetor body, a cam, a plunger, a torsion spring, a fixed plate, a throttle wire bracket, a main measuring needle, a sleeve and a main jet pipe. The plunger is rotatablely mounted in the carburetor body, which passes through the cam, the torsion spring and fixed plate in turn and then extends out of the carburetor body, and a top of the plunger is connected with the throttle wire bracket and then fixedly connected with the sleeve; the fixed plate is fixedly connected with the carburetor body; one end of the torsion spring is elastically suppressed by the fixed plate, and the other end of the torsion spring is elastically suppressed by protrusions on side walls of the plunger. The configuration can ensure sufficient flexibility of its plunger and improve the reliability of the carburetor.

Abstract: A carburetor with a starting fuel supply mechanism which additionally supplies a starting fuel at the start of an engine includes a choke valve in suction passages extending through a main body; and a starting fuel supply path disposed as a bypass of a main fuel passage to connect a float chamber to the suction passages, the starting fuel supply path being provided with an opening/closing valve opened by interlocking with the closing operation of the choke valve, and a valve body of the choke valve which performs the closing operation presses valve opening/closing device while abutting on one end of the valve opening/closing device, to open the opening/closing valve of the starting fuel supply path, so that the starting fuel can be prepared to be supplied.

Abstract: Methods and apparatus are provided for detecting an anomaly in fuel demand data and fuel supply data generated by a fuel metering system for an engine, The method comprises collecting the fuel demand data and the fuel supply data during operation of the fuel metering system, generating expected fuel supply data based on the collected fuel demand data and a nominal response model describing the expected behavior of the fuel metering system, and detecting the anomaly if a difference between the expected fuel supply data and the collected fuel supply data exceeds a predetermined threshold.

Abstract: In an auto choke apparatus, a throttle valve and a choke valve are provided in a carburetor. A bimetal is provided near a muffler to bring the choke valve back in an opening direction after warm-up is completed. A bimetal lever has amounting hole to which one end of a choke rod is secured. A choke lever has amounting hole having a long hole shape to which the other end of the choke rod is secured. By forming the mounting hole of the choke lever in a long hole shape, the choke lever can be moved with the bimetal lever being stopped so that a throttle lever and the choke lever can be caused to work together without being restricted by the bimetal.

Abstract: A carburetor with a starter includes a carburetor body, a main fuel supply device with a swing frame, an idle speed fuel supply device with a main metering pin, a starter, a joint for a fuel input pipe and a main nozzle having a fuel nozzle. The carburetor further includes an operating mechanism having a linkage arm and an air strangler. The air strangler and the linkage arm are pivoted to two sides of the carburetor body, respectively. The linkage arm has an upper position and a lower position formed thereon. The upper position presses against the swing frame so as to move the main metering pin and cause the air strangler to shut down an air passage in the carburetor body.

Abstract: A fuel injection and mixing system is provided that is suitable for use with various types of fuel reformers. Preferably, the system includes a piezoelectric injector for delivering atomized fuel, a gas swirler, such as a steam swirler and/or an air swirler, a mixing chamber and a flow mixing device. The system utilizes ultrasonic vibrations to achieve fuel atomization. The fuel injection and mixing system can be used with a variety of fuel reformers and fuel cells, such as SOFC fuel cells.

Abstract: A carburetor includes a main body defining a bore, a main passage and a venturi defined within the bore, and a fuel nozzle carried by the main body and including a fuel nozzle outlet communicating with the venturi. The carburetor may also include a valve member translatable across an axis of the bore, such that in a closed state, the valve member closes the main passage but maintains the venturi at least partially open. The carburetor may also include a needle valve disposed at an end of the fuel nozzle substantially opposite of the fuel nozzle outlet to variably control flow of fuel into a fuel nozzle inlet, and a needle valve transmission may be coupled between a throttle shaft and the needle valve to convert rotation of the throttle shaft to translation of the needle valve.

Abstract: A carburetor includes an air inlet with a mechanically adjustable air valve, a mechanically adjustable atomizer discharging in the air inlet, and a mechanical metering device connected with the air valve and the atomizer, maintaining a stoichiometric ratio between amounts of air and fuel. Additionally, the carburetor includes a fuel pressure regulating unit to regulate the fuel pressure of fuel injected in the air inlet, based on one or more dynamic engine load parameters under which a vacuum signal in the air inlet is obtained via a vacuum intake conduit discharging into the air inlet. By regulating the fuel pressure also in dependence of the measured vacuum signal, the emission of unburned fuel is reduced under certain dynamic conditions of the combustion engine.

Abstract: A carburetor includes a valve mechanism, and a needle jet extending in an up and down direction. Also included is a jet needle provided to a sliding throttle valve disposed in an air intake tube and inserted into the jet needle. The valve mechanism includes a valve body, which has a plate shape and which is moved by the flow of the fuel. When a motorcycle lands on the ground after the motorcycle jumps while running, the fuel-in-jet, that is, the fuel in the needle jet, tends to accelerate downwardly. The valve mechanism prevents a downward reverse flow of the fuel-in-jet on which such downward acceleration acts. The resulting configuration prevents temporary production of a lean air-fuel mixture, which may possibly be produced when the fuel in the needle jet has accelerated downwardly.

Abstract: A carburetor includes a main body defining a bore, a main passage and a venturi defined within the bore, and a fuel nozzle carried by the main body and including a fuel nozzle outlet communicating with the venturi. The carburetor may also include a valve member translatable across an axis of the bore, such that in a closed state, the valve member closes the main passage but maintains the venturi at least partially open. The carburetor may also include a needle valve disposed at an end of the fuel nozzle substantially opposite of the fuel nozzle outlet to variably control flow of fuel into a fuel nozzle inlet, and a needle valve transmission may be coupled between a throttle shaft and the needle valve to convert rotation of the throttle shaft to translation of the needle valve.

Abstract: To provide a carburetor in which, when a set screw is detached, a jet needle can also be detached along with the set screw. A carburetor of the variable venturi type has a venturi piston to adjust the venturi of an intake passage that is provided in a carburetor body. In the carburetor, the jet needle is attached as a unit with a cap member by screwing the cap member into the venturi piston. The carburetor includes a retaining mechanism, with help of which the cap member is engaged with the jet needle to form a single unit, when the cap member is detached from the venturi piston.

Abstract: A carburetor has an air intake passage, a fuel passage, a fuel nozzle in communication with the fuel passage and having an opening through which fuel flows, a first valve in communication with the air intake passage and being movable between first and second positions, and a second valve in communication with the fuel nozzle and also being movable between first and second positions to vary the effective flow area of the fuel nozzle. The fuel nozzle is preferably carried by a tube fitted sealably in a bore being in communication with the fuel passage. The opening is defined by the tube and is preferably elongated, extending axially with respect to the tube. A needle of the second valve moves axially within the tube to variably obstruct the opening to control fuel flow. Preferably, a method of manufacturing the tube utilizes a circular cutting tool which plunges into the tube cutting a slit as the opening having a sharp peripheral edge for atomizing the fuel.

Abstract: A flow rate control mechanism is provided to a low-speed fuel system that is independent from the main fuel system of a carburetor. The mechanism causes the valve element to move in a linear fashion by means of a cam coupled to the throttle stem. The mechanism increases the effective cross-sectional area of the low-speed fuel channel as the throttle valve opens from the idle position to the maximum degree of opening until the point in time at which the main fuel begins to flow, and thereafter causes the low-speed fuel flow rate to decrease and become zero in the high-output region. The transition from low-speed fuel to main fuel is made smooth, ensuring higher output and a stable fuel flow rate in the high-output region.

Abstract: A forced air induction system (10) constructed in accordance with the principles of a preferred embodiment of the present invention and configured for supplying compressed induction fluid to an internal combustion engine (E) for powering a vehicle (V) is disclosed. The illustrated forced air induction system (10) broadly includes a blower (12) for compressing induction fluid for the engine (E) and an improved carburetor hat (14) in communication with the blower (12) for delivering the compressed induction fluid to the carburetor (C). The illustrated blower (12) is a centrifugal supercharger. The illustrated carburetor hat (14) defines a neck section (26), a throat section (28), and an internal chamber (30) disposed between the neck and throat sections (26,28).

Abstract: In a fuel-air mixture device, downstream of a throttle (4) and a fuel introduction device, a block (51) is provided across the primary air passage (2). The block has a plurality of passageways (54) through it for air flow towards an inlet manifold. These improve mixture of the fuel and air.

Abstract: The present invention facilitates increased output, decreased size, and simplified design and manufacture for a carburetor system in which a metering pin, which moves on a throttle valve, controls the fuel flow rate for a single fuel system. A carburetor of the present invention comprises a butterfly-like throttle valve on an air intake pathway with a nearly uniform diameter along its entire length, and a fuel nozzle positioned on the downstream side thereof. A metering pin retained by an actuating member that reciprocates linearly and remains in constant contact with a cam face of a cam member located on a valve stem. Fuel supplied to the air intake pathway from a constant fuel chamber via the fuel nozzle is controlled according to the opening and closing of a throttle. The metering pin by means of a cam controls the volume of the fuel flow rate at a desired stroke set irrespective of the opening and closing movement of the throttle valve.

Abstract: A carburetor for an internal combustion engine including a body having an air inlet opening and air outlet opening. A throat is disposed in the body between the air inlet and outlet openings. A slide assembly is movably disposed in the body for crosswise movement across the throat. The slide assembly includes a stepped portion upstream of the throat and the lower portion of the air inlet opening is narrowed for concentrating and compressing the air entering the throat. A reservoir containing fuel is attached to the body. The fuel reservoir includes a fuel outlet located in the throat. An adjustable metering rod extends through the slide assembly and throat into the fuel reservoir. A recessed scoop is located in the body above the air inlet opening and is in air flow communication with the fuel reservoir.

Abstract: An improved fuel air mixture apparatus which enhances the degree of mixing of fuel with air. The fuel-air mixture device includes a primary air passage having an inlet, an adjustable throttle and an outlet; a secondary air passage having an inlet and an outlet to the primary air passage between its adjustable throttle and its outlet; a nozzle having an orifice opening into the secondary air passage for introducing a flow of fuel therein; a needle arranged co-axially of the nozzle with its small diameter at least normally extending from the orifice into the secondary air passage, the needle being axially moveable to provide variability of the orifice and control of the fuel flow; a control device for directly linking or controlling the position of the needle to the position of the adjustable throttle in the primary air passage for adjustment of the orifice of the nozzle.