Abstract: An actuator is driven by a brushless motor having a rotor with axially extended magnets, permitting axial movement of the rotor while maintaining overlap between the magnets and a stator secured in a fixed position. The rotor is engaged with a fixed structure by a connection such as a ramp or thread that translates rotation into axial movement of the rotor along a rotational axis of the actuator. A valve member coupled to the rotor moves axially between a closed position and a range of positions that regulate fluid flow through a valve. A motor control circuit applies power to the stator coils to rotate the rotor and coupled valve member to a desired axial position and maintain the rotor and valve member at the selected position. The rotor and valve member may be biased toward a rotational position corresponding to a closed position of the valve member.

Abstract: An igniting device for igniting a mixture, in particular for an engine, comprises an energy converting device and a fluid flow injecting device. The energy converting device is configured for converting fluid flow energy of at least one fluid flow into heat, thereby igniting the mixture. The energy converting device comprises an ignition chamber for the at least one fluid flow. The fluid injecting device is configured for injecting a plurality of fluid flows into the ignition chamber. The injection takes place such that a first fluid flow is injected into the ignition chamber with a higher fluid flow velocity than a second fluid flow.

Abstract: Provided is a method of manufacturing a porous glass deposition body for optical fiber comprising depositing silica powder on a starting member being raised and rotated by using burners with different deposition positions. With a glass raw material flow rate supplied to a core deposition burner represented by F1 and a total flow rate of glass raw material supplied to a cladding deposition burner adjacent to the core deposition burner represented by F2, during an initial deposition stage occurring before gas conditions reach a stable state, glass raw material is supplied to points at the same longitudinal position of the deposition body such that a glass raw material flow rate ratio F2/F1 is no less than 0.69 and no greater than 1.03.

Abstract: A fuel injection assembly includes a fuel injector having end walls spaced apart from one another and side walls extending between the end walls. The end walls and the side walls collectively define a first opening for passage of air. At least one fuel injection member is disposed within the first opening and extends axially between the end walls. The fuel injector terminates at a radially inner surface. A boss that is fixedly connected to the combustion liner and extends radially through the cooling flow annulus to a flange portion positioned at the outer sleeve. The boss defines a second opening that provides for fluid communication between the fuel injector and the second combustion zone. The radially inner surface of the fuel injector is sealingly connected to the flange portion of the boss such that the first opening aligns with the second opening.

Abstract: A micro-bubble generator is provided between an input end and an output end of a water outlet device. The micro-bubble generator includes a water inlet member and a water outlet member. A gas inlet gap is remained between the water inlet member and the water outlet member, with the gas inlet gap being communicated to external air, such that the external air is allowed to enter the micro-bubble generator for gas-liquid mixing and generate minute and dense bubbles.

Abstract: Submerged combustion burners having a burner body and a burner tip connected thereto. The burner body has an external conduit and first and second internal conduits substantially concentric therewith, forming first and second annuli for passing a cooling fluid therethrough. A burner tip body is connected to the burner body at ends of the external and second internal conduits. The burner tip includes a generally central flow passage for a combustible mixture, the flow passage defined by an inner wall of the burner tip. The burner tip further has an outer wall and a crown connecting the inner and outer walls. The inner and outer walls, and the crown are comprised of same or different materials having greater corrosion and/or fatigue resistance than at least the external burner conduit.

Abstract: A method for producing a spray jet from a liquid/gas mixture with a two-component nozzle having a nozzle housing, including the steps of blending a supplied liquid and a supplied gas and producing a spray jet consisting of gas and liquid drops, producing a gas jet and mixing of gas jet with the spray jet.

Abstract: A glass particle deposit producing method capable of preventing the variation in the outside diameter of a glass particle deposit and enhancing the yield of a glass raw material is provided. A glass particle deposit is produced by mounting a starting rod 11 and a glass particle generating burner 22 inside a reaction vessel 2, introducing a glass raw material into the burner 22, subjecting the glass raw material to a flame decomposition reaction inside a flame formed by the burner 22 to generate glass particles, and depositing the generated glass particles on the starting rod 11. At this time, the dispersion angle of the glass raw material jetted from the burner 22 with respect to the center axis of the burner 22 is set to the range of 5 to 70 degrees.

Abstract: A production method for a glass particulate deposit which includes a deposition step in which, at least two liquid source material ejecting ports 31a for a glass source material 23 jetting out from a burner 22 are provided per one burner 22, the area of at least one liquid source material port 31a is 2.25×10?4 or less of the area of the flame forming part of the burner 22, the glass source material 23 is, in the form of a liquid thereof, supplied to each liquid material source port 31a, jetting gas ports 31b are arranged in such a manner that the inner periphery of the jetting gas port is positioned outside by 1.0 mm or less from the outer periphery of each liquid source material port 31a, and a gas is jetted out from each gas jetting port 31b.

Abstract: An explosive and narcotics detection system detects the presence of trace particles of those materials that are adhering to surfaces. In order to detect such particles, it is necessary to first dislodge or release them from the surface, next to transport them to the detection instrument, and last to accumulate them on or in a particle collection device associated with the instrument. Narcotics and explosive particles are often bound tenaciously to the surface, and simple techniques, such as blowing air, will either remove only the largest particles or none at all. A nozzle to release particles of narcotics and explosives employs a coaxial configuration that permits particle release at an increased distance from the nozzle compared to existing devices.

Abstract: A fuel injector for injecting fuel into a gasifier includes a mating end including a nozzle portion and a first flange fixedly coupled to the mating end and having a first receiving hole there through and including a first diaphragm disposed therein. The injector also includes a fuel transmission nozzle displaced at least partially within the mating end and passing through the first receiving hole arranged and configured such that a secondary oxygen channel exists between the fuel transmission nozzle and the mating end, the fuel transmission nozzle being fixedly coupled to the first diaphragm and further including a fuel inlet for receiving fuel for introduction into the gasifier.

Abstract: A fire fighting nozzle for extinguishing industrial scale fires including improved automatic pressure regulating features, enhanced educting features including central and peripheral channeling for foam concentrate, and combining with a capacity to throw dry chemical. Improved pressure regulating features include a double acting baffle and preferably a relief valve. Method and apparatus for automatically metering an additive such as foam concentrate into a conduit having a variably flowing fire fighting fluid therethrough, the conduit including a discharge device, proximate or downstream.

Abstract: A self-cleaning spray nozzle, and in particular a self-cleaning spray nozzle for use in an apparatus for the preparation of a particulate material by a controlled agglomeration method, for example a method for controlled growth of particle size. The apparatus is especially suitable for use in the preparation of pharmaceutical compositions containing a therapeutically and/or prophylactically active substance which has a relatively low aqueous solubility and/or which is subject to chemical decomposition.

Abstract: An improved metering apparatus is provided for use with a foam dispenser that disperses beads of foam after mixing streams of two foam components together. The dispenser has a pair of seal passages formed in a body portion of the dispenser and a spool valve rotated mounted in the body portion. The spool valve has a pair of flow passages formed in it that can be rotated into mating alignment with the seal passages formed in the dispenser body. The spool valve flow passages have circular cross-sections while the seal passages have non-circular cross-sections, and preferably triangular cross-sections.

Abstract: A fuel injector for a turbomachine engine, the injector comprising an injector body having pressurized fuel admission means, a first valve mounted downstream from the pressurized fuel admission means and arranged to admit fuel into the injector body, a second valve mounted downstream from the first valve and capable of opening in order to meter at least a fraction of the fuel admitted into the injector body for utilization means for using the fuel, the metered fuel flow rate to the utilization means being a function of flow sections formed through the second valve, the injector further comprising a diaphragm placed between the pressurized fuel admission means and the first valve so as to set the rate at which fuel is admitted into the injector body at a determined value.

Abstract: A multiplex injector system comprising an injector head, a first fuel path located in the injector head, and a first set of injector tips located in the injector head and in fluid communication with the first fuel path. The first set of injector tips includes at least one first injector tip. The multiplex injector further includes a second fuel path located in the injector head and a second set of injector tips located in the injector head and in fluid communication with the second fuel path. The second set of injector tips includes at least one second injector tip. A flow of fuel in each of the first and second fuel paths can be selectively controlled to control the flow of fuel through the first and second sets of injector tips.

Abstract: A fire fighting nozzle for extinguishing industrial scale fires including improved automatic pressure regulating features, enhanced educting features having central (110) and peripheral channeling (94) for foam concentrate, combined with a capacity to throw dry chemicals. The improved pressure regulating features include a spring (50) loaded double acting baffle (13), that is positioned by fire fighting fluid in communication with a hydraulic chamber, the hydraulic chamber is preferably controlled by a relief valve (42).

Abstract: Burners (40) for producing fused silica boules are provided. The burners employ a tube-in-tube (301-306) design with flats (56, 50) on some of the tubes (305, 301) being used to limit the cross-sectional area of certain passages (206, 202) within the burner and/or to atomize a silicon-containing, liquid source material, such as OMCTS. To avoid the possibility of flashback, the burner has separate passages for fuel (205) and oxygen (204, 206), i.e., the burner employs nozzle mixing, rather than premixing, of the fuel and oxygen. The burners are installed in burner holes (26) formed in the crown (20) of a furnace and form a seal with those holes so that ambient air cannot be entrained into the furnace through the holes. An external air cooled jacket (60) can be used to hold the temperature of the burner below a prescribed upper limit, e.g., 400° C.

Abstract: A nozzle for the injection of solid fuel in dust form into a combustion chamber, to be installed in correspondence with the outlet of a burner coaxially to the longitudinal axis of the burner, comprising a stationary annular part divided into coal ducts of a circumferential width that decreases towards outlet section to form coal-dust-rich air streams, a central duct for a coal-dust-poor air stream sideways delimited by the coal ducts and having an outlet end, a central member that is axially mobile within the central duct, for varying the cross section of a central passage delimited by the stationary annular part at the outlet end. Air ducts for the coal-dust-poor air stream are formed between each pair of adjacent coal ducts in the stationary annular part communicating with the central duct and having a circumferential width increasing toward the outlet end.

Abstract: A spray gun having a fluid flow control valve which is preferably located in a spray head. The flow control valve eliminates the need to change the spray head or fluid tip to change the flow rate in a suction feed and/or gravity feed paint spray gun when different materials are sprayed. The valve has a member which is rotatable over no greater than 3600.degree. and preferably over about 90.degree. for adjusting the flow rate. Calibration marks may be provided for setting the valve for flow rates produced by standard fluid discharge orifice sizes.

Abstract: A spray assembly including a venturi type spray nozzle, a valve attached to the spray nozzle, a reservoir adapter that can engage a reservoir containing a liquid coating material to be sprayed, and a flexible hose between tile reservoir adapter and the valve. The outer surface texture of material being coated can be adjusted using the valve which is useful in matching the surface texture of chip resistant coatings and undercoatings on an automobile, and the hose allows the operator to spray material onto a substrate from any orientation of the spray nozzle which facilitates coating locations such as the lower portions of panels or in wheel wells and trunks. A valve passageways is shaped to facilitate fine adjustment of the air/coating material ratio when small amounts of material are being delivered, and the valve includes an air purge to remove material from the valve and nozzle when the valve is shut off.

Abstract: An oxy-fuel system for reducing NO.sub.x formation in corrosive high temperature environments including a self-cooled adjustable oxy-fuel burner that generally produces a luminous flame having a concentric fuel rich phase and an outer surrounding oxidizer rich phase the flame directed through a precombustor mounted on the flame end of the burner the precombustor having a length to diameter (L/d) ratio fixed by the firing rate of the burner.

Abstract: A hand-held spray gun including a handle section, a barrel section mounted forwardly of the handle section, and a nozzle section mounted forwardly of the barrel section. The handle section has a liquid inlet at a rearward end thereof and is adapted to direct pressurized liquid in a straight longitudinal path through a relatively inexpensive plastic tube which functions both as a liquid conduit and as a mechanism for moving a valve follower of the gun between open and closed conditions in response to actuation of a trigger. The handle section further has a pressurized air inlet which communicates with the nozzle section through an air passageway defined between the liquid conduit tube and a barrel section housing for facilitating liquid atomization of the spray discharge.

Abstract: In a spray gun for fluids, such as paint, pressurized air is brought from a hollow handle to a hollow barrel containing an air transition nozzle while the fluid is brought radially into a fluid nozzle in the barrel. The fluid is expelled through a port in the center of the fluid nozzle at the end of the barrel and the pressurized air is expelled out the end of the barrel through openings in an air cap to shape the fluid spray. A cylindrical cartridge, which includes the fluid nozzle and a restricter plug, is movable along the inside of the barrel to change the size and/or shape of the spray and at the same time, control the amount of air to the air cap and the amount of expelled fluid to keep the air-to-fluid ratio substantially unchanged and the air transition nozzle produces a well-defined spray pattern with uniform droplets.

Abstract: A novel preferably poppet-valve-controlled fluid applicator for extruding hot melt and other coating fluids and the like as fibers or filaments and/or droplets upon moving webs and other surfaces wherein the valve seat tip blocks or permits the flow of the fluid into a hollow nozzle insert communicating with, preferably, a needle-like nozzle tube spray extruder, with provision for adjustment to produce controlled fiber and/or droplet spray coatings, and preferably though optionally with air-shaping control of the coatings.

Abstract: A piston-powered fluid dispensing system is disclosed. The fluid dispensing system comprises an apertured base, a hollow elongated cylinder, an apertured piston, a hollow orificed overcap, an elongated fluid passageway, an externally-channeled hollow extension, and three valves. The elongated cylinder, which defines a longitudinal axis, carries the base at one end portion and defines a hollow neck at the opposite end portion. The piston, disposed in the cylinder for providing two cylinder chambers, defines a circumferential portion that is slidably engageable with the cylinder substantially along the length of an inner surface. The overcap, carried by the cylinder and rotatable about the longitiudinal axis, defines an internal fluid-mixing region and a throat that is in fluid communication with the fluid-mixing region. The throat, carrying the externally-channeled extension, is slidably engageable with an inner surface portion of the cylinder neck.

Abstract: A fuel injector for an internal combustion engine includes a body having fuel and air inlet ports and fuel and air outlet ports located within the combustion chamber of the engine cylinder. A pair of valves open and close the air and fuel outlet ports and are sequenced so that fuel is introduced into a flow of air and the flow of air continues briefly after the fuel flow has been discontinued.

Abstract: A burner for producing glass fine particles provided with an intermediate passage between a central passage and an outer passage for surrounding the periphery of the central passage characterized by that the end of the intermediate passage is disposed inner side from the end of the outer passage and the end of the central passage is disposed between the end of the intermediate passage and the end of the outer passage. Thus, the burner can stably fabricate porous glass base material having GI type or triangular refractive index distribution and yet can suppress the production of bubbles.

Abstract: In a spray gun for fluids, such as paint, pressurized air is brought from a hollow handle to a hollow barrel while the fluid is brought radially into a fluid nozzle in the barrel. The fluid is expelled through a port in the center of the fluid nozzle at the end of the barrel and the pressurized air is expelled out the end of the barrel through openings in an air cap to shape the fluid spray. A cylindrical cartridge, which includes the fluid nozzle and a restricter plug, is movable along the inside of the barrel to change the size and/or shape of the spray and at the same time, control the amount of air to the air cap and the amount of expelled fluid to keep the air-to-fluid ratio substantially unchanged.

Abstract: A fluid-dispensing system is disclosed. The dispensing system comprises an apertured base, a hollow cylinder, an apertured piston, an orificed overcap, a fluid passageway, an apertured extension, and three valves. The piston, slidably engageable within the cylinder, divides the cylinder into two chambers. The cylinder defines a hollow neck at one end portion thereof. The overcap defines an apertured throat that is slidably engageable within the cylinder neck. The throat aperture of the overcap provides fluid communication between one cylinder chamber and a fluid-mixing region spaced from the fluid-dispensing system. The fluid passageway, disposed through the piston aperture, provides fluid communication between a pressurized-fluid source and the fluid-mixing region via at least one orifice of the overcap. The base defines an apertured sleeve. The hollow extension, slidably engageable within the sleeve, is in fluid communication with the one overcap orifice via the fluid passageway.

Abstract: A hydrotherapy method for discharging a water stream through a rigid conduit while concurrently translating the conduit discharge orifice along a nonlinear path describing an area. The conduit is comprised of a supply section and a discharge section having an axis misaligned with the supply section axis for discharging a stream in a direction tending to rotate the conduit around the supply section axis. Frictional loading of the conduit, attributable to suction produced by the supply water jet, is mitigated by providing a passageway which permits the suction to draw tub water into a cavity for entrainment by the water jet for discharge through the conduit.

Abstract: A hydrotherapy method and apparatus for discharging a water stream through a rigid conduit while concurrently translating the conduit discharge orifice along a nonlinear path describing an area. The conduit is comprised of a supply section and a discharge section having an axis misaligned with the supply section axis for discharging a stream in a direction tending to rotate the conduit around the supply section axis. Frictional loading of the conduit, attributable to suction produced by the supply water jet, is mitigated by providing a passageway which permits the suction to draw tub water into a cavity for entrainment by the water jet for discharge through the conduit.

Abstract: A washing attachment for a compressed fluid spray gun is disclosed. The washing attachment includes a conduit, having a compressed fluid passageway positioned on the discharge end of the spray gun. An elongated member defining first, second and third passageways is in communication with the conduit with the second passageway in communication with the compressed fluid passageway. The first passageway is in communication with a source of cleaning fluid, a valve regulates the flow of cleaning fluid to the first passageway. The second passageway also communicates with the first passageway establishing a region of reduced pressure for drawing cleaning fluid into the first passageway. The first, second and third passageway terminate in discharge apertures adjacent the elongated member discharge opening. An opening in the elongated member communicates with the third passageway and is connected to a source of water.

Abstract: A computer controlled fluid spray control system for spraying a plurality of different fluids is disclosed. The control system provides for the individual setting, sensing, adjustment and control of spray fluid pressure, atomizing air pressure, fan control air pressure and traversing speed of the spray gun which sprays the fluid to be applied to workpieces arranged on a moving conveyor line. Plant ambient conditions are monitored to allow and effectuate spray control setting adjustments. The preselected spray control settings may be temporarily or permanently changed as required.

Abstract: Mixing apparatus for two liquids such as cold and hot water having separate annular inlets (5, 6), spaced apart, for both of the liquids and provided with an external (7, 8, 9, 10) and internal (13, 14) guides for directing one liquid to the inlet (6) of the other liquid and the discharge of the mixed liquid. Both the external (7, 8, 9, 10) and the internal (13, 14) guides of the one liquid are mainly cylindrical in front of the inlet (6) of the other liquid. At the annular inlet (6) of the other liquid an annular vortex chamber (15) is provided.

Abstract: A burner for pulverized coal such as in a rotary kiln includes three concentric cylindrical ducts. The outer duct carries an air supply which is directed in a generally axial direction into the kiln. The next innermost duct carries the pulverized coal-carrier gas mixture and is also generally directed in an axial direction. The next innermost duct carries air which is directed in a divergent radial direction in the kiln and includes a rotational air component. By controlling the quantities of air in the ducts which flank the coal duct, the resulting flame form can be controlled in the kiln without restoring to variations in the velocity or direction of the coal carrier gas stream. By eliminating such variations in regard to the coal carrier gas stream, the abrasive action of the pulverized coal is kept to a minimum.

Abstract: A snow gun for making artificial snow by atomizing a mixture of air and water is disclosed. The snow gun comprises a hollow body, a compressed air supply conduit terminated by an injection nozzle accommodated inside the hollow body and opening at an end into the hollow body. A pressurized water supply conduit opens into a space between the hollow body and the air supply conduit. A mixing chamber for mixing air and water communicates through an inlet port with the interior of the hollow body, the inlet port facing the discharge nozzle of the injection nozzle. The injection nozzle is displaceable longitudinally relative to the inlet port of the mixing chamber for adjusting the water flow passage to the mixing chamber. A needle valve adjusts the cross-sectional area of discharge orifice of the air injection nozzle. The mixing chamber comprises the bore of a main nozzle extending in the continuation of the injection nozzle.

Abstract: A compression-type spray device employing a single nozzle can be used to spray materials varying widely in density, composition and particle size. The device incorporates an air-and-material mix control using variably exposed slots in the nozzle to regulate the flow of high-pressure air through the nozzle, and a material supply control using variable restrictions in the material supply tube inlet to regulate the flow of material to the nozzle.

Abstract: A valve controlled multiple port nozzle device is provided for co-injection molding to sequentially and simultaneously feed a plurality of plastics material melts into a mold. The nozzle device is especially adapted for initially feeding a skin melt followed by a simultaneous feeding of the skin melt and core or foamed melt and then followed by a final skin melt feed into a mold for producing a molded article with a core surrounded by a complete skin. The nozzle device has a single needle or pin valve controlling flow through the nozzle orifice and sequentially opening the orifice to flow from two inlet ports. The needle or pin has a blind bore selectively communicating with one of the ports as it is retracted from the nozzle orifice and spacers are provided to vary the gap between the needle valve tip and the orifice relative to the opening of the blind bore to its port.

Abstract: There is disclosed herein a spray gun particularly adapted for heavy duty use in applying a variety of fluids to the working surfaces of dies, molds, or other like forming apparatus. The spray gun comprises a main body housing adapted for the connection of compressed air and other fluid supply lines and having a single axially movable double action valve disposed therein which is adapted to selectively control both the flow of compressed air and other desired fluids. The double action valve is actuated by a lever arm connected to the body portion and engaging a portion of the valve member. A delivery tube is connected to the discharge end thereof for transmitting and directing the fluid or fluids to the surface to be sprayed.

Abstract: Apparatus for spraying mould parting agents and other substances having a conduit for circulating the substance, and spray nozzle equipment having a first bore connected to the conduit for a circulation of the substance therethrough. A second bore in the equipment intersects the first bore at an angle and extends to a spraying device. A nozzle pin in the second bore has a third bore for supplying a pressurized medium to the spraying device and is adjustable for a regulation of the supply of circulated substance to the spraying device. Additionally or alternatively, part of a conduit for circulating a sprayable substance is connected to a pump submerged in a supply of that substance and is actuated for actuating the submerged pump.

Abstract: A burner gun to provide a narrow spray pattern under high or low fire conditions, having a nozzle with an elongated tunnel passage therein which nozzle is spacially adjustable with respect to a spray tip; the spray tip has an oil swirl chamber with an axially movable piston to obstruct in varying degree oil intake ports in the swirl chamber, to reduce the flow when low fire operation is required.

Abstract: A compression-type spray device employing a single nozzle can be used to spray materials varying widely in density, composition and particle size. The device incorporates an air-and-material mix control using variably exposed slots in the nozzle to regulate the flow of high-pressure air through the nozzle.[., and a.]..Iadd.. A .Iaddend.material supply control .[.using.]. .Iadd.having .Iaddend.variable restrictions .Iadd.may be provided .Iaddend.in the material supply tube inlet to regulate the flow of material to the nozzle.