Abstract: In an aspirating and dispensing/spraying device, a holder is screwed onto a tube, connected to a liquid supply line, in such a way that it is displaceable along the tube by rotation. The tube is surrounded at a distance by a coaxial sleeve, which is solidly anchored in the holder, having a discharge opening on its front end, which is conically narrowed, whose edge surrounds the front end of the tube, which carries a outlet opening, separated by a narrow annular gap from the tube. The sleeve carries a connecting piece laterally, to which a pressurized gas supply line is connected and which discharges eccentrically into the space between the sleeve and the tube, so that pressurized gas flowing in receives angular momentum. When the gas flows out of the annular gap, it mixes intensively with the liquid coming out of the outlet opening and forms a discharge cone made of a fine, symmetrical aerosol with the liquid.

Abstract: A liquid spray module which can be individually used, or which can be easily mounted in ganged side-by-side relation with a plurality of such modules. Each module includes a spray gun cartridge having liquid passages through the liquid to be sprayed, is directed and one or more air passages through which pressurized air may be directed for assisting in atomization of the liquid and controlling operating movement of a valve needle. Each spray gun cartridge further includes a manifold body having a central bore into which the spray gun cartridge is removably mounted and liquid and air inlet and outlet passages which communicate with the liquid and air spray gun cartridge passages. The spray gun cartridge is removable from the manifold body without disconnection of fluid supply lines to the manifold body and without removal of the manifold body from a ganged mounted array of such spray modules.

Abstract: A reservoir of super absorbent polymers which can be independently pressurized, remotely stored and a supply of water which is admixed with the SAP at a point closely adjacent of an adjustable nozzle. In one embodiment the system involves a home unit with a portable hand carrided reservoir which can be pressurized. Yet another system involves a back pack carried by a homeowner or firefighter for spraying which can be pressurized. Yet another embodiment involves a reservoir which can be independently pressurized with a pump so that any reduction in the water pressure in a tap line can be overcome by the SAP auxiliary pressure delivery. Other embodiments relate to a portable unit containing both the water reservoir and the SAP reservoir to the end that it is self-contained, and the admixing can be a function of wherever the homeowner, firefighter or rescue person should don the equipment.

Abstract: Systems and methods for high volume, low pressure foam generation are provided that have a wide range of applications, particularly in fire fighting and fire prevention fields. The foam may be effectively delivered to targets that have heretofore been difficult, if not impossible, to reach in a timely, cost effective and/or efficacious manner. Nozzles and nozzle-containing systems are provided for combining water, injected foam and air to generate and/or deliver high volume, low pressure foam. The foam generation systems may be part of portable units that may be worn or otherwise supported by a user (e.g., a back pack), manually transported (e.g., a push cart), or transported with power-assistance (e.g., a power-assist cart). The systems may also be vehicle-mounted. Exemplary nozzle systems include a diffuser unit that facilitates aeration of the water and foam mixture that is fed to the nozzle system.

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: A spiral spray coating method, comprising the step of forming a second pressurizing air flow which is discharged from a number of second pressurizing air holes (13) positioned concentrically with and outwardly-shaped from first pressurizing air holes (12), on the outside of the first pressurizing air flow which is discharged from a number of first pressurizing air holes (12) disposed concentrically with an opening of an adhesive agent hole (11) so as to feed the second pressurizing air flow (K2) to the outside of the first pressurizing air flow (K1) in order to form an air curtain of the second pressurizing air flow on the outside of a spiral of a hot-melt adhesive agent fiber; a spiral spray coating apparatus using the spiral spray coating method.

Abstract: A fluid catalytic cracking unit includes a nozzle located in the bottom of a riser reactor. A first conduit provides a passageway for enabling a dispersing gas to flow therethrough and through an outlet passageway in a cap covering the end of the conduit. The outlet passageway discharges the dispersing gas into a liquid hydrocarbon feed material flowing through a second conduit spaced from and enclosing the first conduit to form an annulus therebetween, thereby providing a passageway for enabling the liquid hydrocarbon feed material to flow. A second cap covers the end of the second conduit and is spaced from the first cap thereby forming a mixing zone therebetween for mixing the liquid hydrocarbon feed and the dispersing gas. The second cap includes a continuous circular slot as an outlet passageway of the first cap and is adapted for discharging the mixture of liquid hydrocarbon feed and the dispersing gas. Hot regenerated catalyst enters the riser bottom region through a regenerator standpipe.

Abstract: The present invention provides a burner for use in a combustion-type waste gas treatment system for combusting waste gases emitted from semiconductor manufacturing system, particularly, a deposition gas containing SiH4 and a halogen-base gas, simultaneously at a high efficiency of destruction, making it difficult for a powder of SiO2 to be attached and deposited, performing a low-NOx combustion, and maintaining a desired level of safety. The combustion-type waste gas treatment system has a flame stabilizing zone (15), which is open toward a combustion chamber (11), surrounded by a peripheral wall (12), and closed by a plate (14) remotely from the combustion chamber. A waste gas, an auxiliary combustible agent, and air are introduced into and mixed with each other in the flame stabilizing zone (15), and the mixed gases are ejected toward the combustion chamber (11) perpendicularly to the plate (14).

Abstract: In an atomizer device for the production of a liquid-gas mixture (4), the mixture (4) is introduced, particularly for compression, into a nozzle arrangement (3) in which the kinetic energy of the mixture (4) is in large part converted into compression energy by a pressure rise of the air.

Abstract: A device for mixing fluids, in particular a gas injection valve, nozzle valve, mixing nozzle or jet compressor, is proposed. To that end, a first fluid-carrying device (12) for carrying a first fluid and a second fluid-carrying device (13) for carrying a second fluid are provided; the fluids are mixed with one another in a mixing region (16) that is in communication with the fluid-carrying devices (12, 13). In addition, a means (20) for generating turbulence in the applicable fluid and a heater, with which the fluid can be heated before reaching the mixing region (16), disposed downstream of the means (20) for generating turbulence in terms of the flow direction of the applicable fluid are associated with at least one of the fluid-carrying devices (12, 13). The proposed device is used in particular for mixing hydrogen and saturated steam and to deliver this mixture to a fuel cell.

Abstract: A convergent type of spray gun is made portable by miniaturizing the components with the addition of a double tube, fluid tip and air cap for defining the discharge nozzle for the liquid resin and atomizing air. The dry powdered nozzle is likewise miniaturized and is adapted to fit over the double tube, fluid tip and air cap arrangement by including a sleeve disposed therebetween. The main body is configured in either an L-shape or straight-through configuration. Although the component parts are miniaturized, the spray gun is capable of flowing coating mixture at the same rate as the larger version convergent spray gun.

Abstract: A combustor includes a burner and a combustion chamber including a heat chamber to which fuel is supplied from the burner. The burner includes a nozzle having a fuel discharge outlet from which the fuel is discharged into the combustion chamber; and the nozzle includes a plurality of discharge openings around the fuel discharge outlet from which cooling water is discharged toward inside surfaces of the heat chamber. The plurality of discharge openings may be disposed so that the directions of the cooling water discharged from the discharge openings differ in the radial direction.

Abstract: An in-mold applicator and method for spraying a coating on difficult-to-reach surfaces of a mold is disclosed. The applicator includes a spray head and a base portion at an oblique angle to each other. The outer dimensions of the body portion and the spray head are sufficiently small so that taken in combination with the oblique angle, the applicator and method can enhance the spraying of the coating to difficult-to-reach surfaces within the mold.

Abstract: A showerhead diffuser apparatus for a CVD process has a first channel region having first plural independent radially-concentric channels and individual gas supply ports from a first side of the apparatus to individual ones of the first channels, a second channel region having second plural independent radially-concentric channels and a pattern of diffusion passages from the second channels to a second side of the apparatus, and a transition region between the first channel region and the second channel region having at least one transition gas passage for communicating gas from each first channel in the first region to a corresponding second channel in the second region. The showerhead apparatus has a vacuum seal interface for mounting the showerhead apparatus to a CVD reactor chamber such that the first side and supply ports face away from the reactor chamber and the second side and the patterns of diffusion passages from the second channels open into the reactor chamber.

Abstract: Apparatus for surface treatment, wherein the apparatus has a tool unit movable on a surface. The tool unit comprises a jet tool for directing a jet of solid particles, preferably CO2 particles, towards the surface for removal of a surface layer. The tool unit further comprises an applicator for application of a surface coating on the surface after removal of the surface layer.

Abstract: A method for atomizing a fluid wherein a gas is heated with the heating facilitating the acceleration of the gas to a high velocity. The accelerated gas contacts the fluid transferring shear, pressure and inertial forces and heat to the fluid effecting efficient atomization of the fluid.

Abstract: The invention is directed to a stable capillary microjet and a monodisperse aerosol formed when the microjet dissociates. A variety of devices and methods are disclosed which allow for the formation of a stream of a first fluid (e.g. a liquid) characterized by forming a stable capillary microjet over a portion of the stream wherein the microjet portion of the stream is formed by a second fluid (e.g. a gas). The second fluid is preferably in a different state from the first fluid—liquid-gas or gas-liquid combinations. However, the first and second fluids may be two different fluids in miscible in each other.

Abstract: Several components are used in combination to effect an apparatus for a spray system, which improves the transfer characteristics and efficiency of polymer applied to the surface of a printing plate. In accordance with this invention, the apparatus comprises: a nozzle for spraying a solid stream of polymer, a circumferential conduit surrounding the polymer spray that carries heated, high-pressure air, which heats, atomizes and improves the transfer efficiency of the polymer, a mixer that allows the mixing of the polymer's constituent reagents immediately prior to the polymer entering the spray nozzle, a fast shut-off valve that allows precision control of the spray nozzle's output, a shroud equipped with vacuum to remove and recycle “overspray”, and a cleaning arm, equipped with a vacuum, that may be activated to clean unused polymer from the components of the nozzle, and to prime the spray nozzle with fresh polymer.

Abstract: Among the conventional processes for producing solid dispersion, the solid dispersion obtained by a solvent method is excellent in terms of solubility and bioavailability of a poorly soluble drug. However, due to frequent uses of organic solvents in the solvent method, problems have arisen such as organic solvent residue in products, environmental pollution and operational safety as well as corporate problems such as capital investment and the like required to avoid such events. The present invention provides a process for preparing pharmaceutical solid preparations without use of organic solvents frequently used in conventional solvent methods.

Abstract: A high-temperature burner is provided that is suited for the incineration of shredded plastics, tires, carpet or similar materials. The burner walls are protected from the heat of the ongoing combustion reaction by an annular curtain of water vapor or carbon dioxide that takes the radiant heat energy of the high-temperature combustion reaction. The annular curtain removes the heat energy from the vicinity of the burner walls before the energy can be conveyed to them. Higher temperature combustion can be attained without resorting to jacketed burner construction or the use of refractory materials.

Abstract: A nozzle for forming nanofibers by using a pressurized gas stream comprises a center tube, a first supply tube that is positioned concentrically around and apart from the center tube, a middle gas tube positioned concentrically around and apart from the first supply tube, and a second supply rube positioned concentrically around and apart from the middle gas tube. The center tube and first supply tube form a first annular column. The middle gas tube and the first supply tube form a second annular column. The middle gas tube and second supply tube form a third annular column. The tubes are positioned so that first and second gas jet spaces are created between the lower ends of the center tube and first supply tube, and the middle gas tube and second supply tube, respectively. A method for forming nanofibers from a single nozzle is also disclosed.

Abstract: Swirling-flow burner with a burner tube comprising a central oxidiser supply tube and an outer concentric fuel supply tube, the oxidiser supply tube being provided with a concentric cylindrical guide body having static swirler blades and a central concentric cylindrical bore, the swirler blades extending from outer surface of the guide body to inner surface of oxidiser supply tube being concentrically arranged within space between the guide body and inner wall at lower portion of the oxidiser supply tube.

Abstract: Atomizing air flowing in an atomizing gas passage is merged with a fuel spray to promote atomization of the fuel, and carrier air flowing in a carrier gas passage is merged with the fuel spray at a further downstream position so as to surround the fuel spray. By doing so, the atomized fuel spray is carried to the downstream side so as to prevent the fuel spray from adhering onto the wall surface. The starting-up performance, fuel consumption and exhaust gas cleaning of an internal combustion engine are improved in this way.

Abstract: An injection element for a combustion component running on two propellants, includes a first, central injection channel, which is connectable to a first propellant supply for a first propellant, and a second injection channel, which annularly surrounds the first injection channel. The second injection channel is connectable to a second propellant supply for a second propellant. The injection element includes a third injection channel, which annularly surrounds the second injection channel and which is in fluid communication with the first injection channel.

Abstract: A method and nozzle for producing fine powder by atomizing molten material with gas are provided. Molten material, in the form of a film, flows out of a molten material nozzle that has an essentially rectangular discharge cross-sectional area. Thereafter, the molten material, together with an atomizing gas, flows through an initially converging and then diverging gas nozzle that is in the form of a linear Laval nozzle, has an essentially rectangular cross-sectional area, and through which flow is laminar. Laminar accelerated gas flow stabilizes and simultaneously stretches the film of molten material in the converging portion of the Laval nozzle until the film of molten material, after passing the narrowest cross-sectional area of the Laval nozzle, is uniformly atomized over its entire length.

Abstract: In the field of jet technology a nozzle of a liquid-gas jet apparatus for feed of an active liquid medium has a central channel and a peripheral annular channel and the total surface area of the outlet cross-section of the nozzle channels is determined from the following formula: S=S&mgr;(1+{square root over ((Skc/S&mgr;)3)}), where S—is the total surface area of the outlet cross-section of the nozzle; S&mgr;—is the surface area of the outlet cross-section of the central channel of the nozzle; and Skc—is the surface area of the minimal cross-section of the mixing chamber. A liquid-gas jet apparatus with the above-mentioned features has a higher efficiency and an improved reliability.

Abstract: Disclosed herein is a nebulizer capable of performing spraying over a wide flow-rate range from a low flow rate to a high flow rate stably and with high efficiency. Further, the present invention provides a supersonic nebulizer capable of improving the efficiency of spraying by a supersonic region spray gas, and a supersonic array nebulizer wherein a plurality of spray units are placed in array form.

Abstract: A low firing rate oxy-fuel burner which may be comprised of commercially available standard components and which includes an oxidant conduit and a fuel conduit within the oxidant conduit. The fuel conduit has a fuel nozzle at the forward end thereof with a fuel swirler in the form of a twist drill positioned therein which is maintained in a an aerodynamically centered position by the flowing fuel stream. The oxidant conduit has an oxidant nozzle at the forward end thereof with an oxidant swirler in the form of helical spring position therein and surrounding the fuel nozzle.

Abstract: This invention is directed to a method and apparatus of delaying the reaction between a first reactive gas and a second reactive gas as the first reactive gas flows into the second reactive gas. The method comprises the steps of surrounding the first reactive gas with a non-reactive gas to form an insulated first reactive gas; and flowing the insulated first reactive gas into the second reactive gas. A sweep gas is used to impart momentum to the insulated first reactive gas. The apparatus comprises three coaxial tubular members which are used to introduce the first reaction gas, the non-reactive gas, and the sweep gas. The apparatus may be installed in a semiconductor device fabrication process either just upstream of the house exhaust line or upstream of an ODC or air pollution abatement device.

Abstract: Apparatus and method for delivering single or multi-component material through a disposable delivery tube and atomizing the material into a spray pattern of substantially uniform dispersion. The apparatus includes a tubular manifold having an opening for receiving a disposable delivery tube with the exit end or nozzle of the delivery tube projecting out from the end of the manifold. A plurality of atomizer holes are formed in the end of the manifold surrounding the hole which receives the nozzle end of the delivery tube. A source of air under pressure is connected to direct air through the atomizer holes. An air cap is mounted to the manifold to direct air passing through the atomizer holes about the nozzle of the delivery tube to atomize the delivered material into a uniform spray pattern without the material coming into contact with either the manifold or the air cap.

Abstract: The invention is directed to a stable capillary microjet and a monodisperse aerosol formed when the microjet dissociates. A variety of devices and methods are disclosed which allow for the formation of a stream of a first fluid (e.g. a liquid) characterized by forming a stable capillary microjet over a portion of the stream wherein the microjet portion of the stream is formed by a second fluid (e.g. a gas). The second fluid is preferably in a different state from the first fluid—liquid-gas or gas-liquid combinations. However, the first and second fluids may be two different fluids in miscible in each other.

Abstract: A spray head for a spraying apparatus comprising a body formed as a conduit leading from an inlet end to a discharge end at which it forms a discharge pattern. A high velocity stream of air is injected into the head at its inlet end and flows through the conduit to its discharge end. Adjacent to the discharge end, a rank of injection nozzles injects liquid into the air stream, and adjacent to the nozzles, a rank of electrodes is formed as ports in the wall of the conduit.

Abstract: A sanitary beverage dispensing spout includes a diffuser housing, a central body integrally formed with the diffuser housing and depending therefrom and discharge ports extending through the bottom of the diffuser housing and opening downwardly about the outer peripheral surface of the central body. The diffuser housing includes a plate diffuser. The central body defines an outer periphery with alternating sets of converging segments. The sets of segments converge at different angles of convergence. Discharge nozzles dispense beverage concentrate from a central manifold extending through the central body. The discharge nozzles define capillary tubes for the retention of a charge of syrup therein between drink dispensing. The flow from the discharge nozzles converges with the converging flow of one set of segments. Flow from a second set of segments converges more rapidly.

Abstract: In a fuel lance for spraying liquid and/or gaseous fuels into a combustion chamber, which fuel lance is part of a secondary or tertiary burner, around which a hot-gas jet flows in a main flow direction, and comprises a liquid-fuel passage for supplying liquid fuel and first means for spraying the liquid fuel from the liquid-fuel passage into the combustion chamber, operation characterized by reduced addition of water is made possible owing to the fact that the first means comprise a liquid-fuel nozzle, which sprays the liquid fuel essentially parallel to the main flow direction as a plain jet into the combustion chamber.

Abstract: A catalytic cracker riser reactor is connected to a regenerator standpipe through which hot, regenerated catalyst enters the riser bottom region. A hydrocarbon feed, such as gas oil, and dispersing gases, such as steam, are introduced through a single bottom entry nozzle assembly. The nozzle assembly comprises three concentrically arranged conduits. An inner conduit provides a passageway for a first dispersing gas and terminates in a first cap having at least one outlet passage for discharging the first dispersing gas in a generally radially outward and upward direction. The first conduit and first cap are enclosed by a second conduit and second cap, the annulus formed thereby providing a passageway for a liquid hydrocarbon feed. The second cap also has at least one outlet passage for discharging the mixture of hydrocarbon feed and first dispersing gas into the riser reactor in a radially outward and upward direction.

Abstract: Atomized particles within a desired size range (e.g., 1 micron to about 5 microns) are produced from two immiscible fluids, the first a fuel source containing the formulation to be atomized, and a second fluid source which is contained in a pressure chamber surrounding at least the area where the first liquid is to be provided. The invention provides a method for the formation of small, relatively uniform fuel particles for use in internal combustion engines and a nozzle-type apparatus for providing the particles to a combustion chamber.

Abstract: A process for forming nanofibers comprising the steps of feeding a fiber-forming material into an annular column, the column having an exit orifice, directing the fiber-forming material into an gas jet space, thereby forming an annular film of fiber-forming material, the annular film having an inner circumference, simultaneously forcing gas through a gas column, which is concentrically positioned within the annular column, and into the gas jet space, thereby causing the gas to contact the inner circumference of the annular film, and ejects the fiber-forming material from the exit orifice of the annular column in the form of a plurality of strands of fiber-forming material that solidify and form nanofibers having a diameter up to about 3,000 nanometers.

Abstract: The present invention is a hairdryer. The hairdryer includes a housing body which has an opening at a front end thereof and an air intake at a rear end thereof. A handle is disposed at a bottom portion of the housing body. A heater and a fan are disposed within the housing body. An outer nozzle is disposed at its front end of the housing body and forming an outer air outlet opening. An inner nozzle is disposed inside the outer nozzle and forming an inner air outlet opening. The inner nozzle includes an inclined portion and a parallel portion. The inclined portion extends from a predetermined position inside the outer nozzle toward the inner air outlet opening while inclining toward a central axis of the outer nozzle. The parallel portion extends from a front end of the inclined portion toward the inner air outlet opening approximately in parallel with the central axis of the outer nozzle.

Abstract: An apparatus for producing the glass soot used in the formation of optical fiber includes a burner with an internal atomizer. The atomizer includes an outer tube having a nozzle at an end thereof, and an inner tube located within the outer tube and having a closed end restricting fluid flow therethrough and defining a cylindrical sidewall having radially extending apertures spaced there along. The outer tube receives the glass-forming mixture in liquid form and the inner tube receives an atomizing gas which flows through the apertures in the sidewall of the inner tube and atomizes the glass-forming mixture as the glass-forming mixture travels through the outer tube.

Abstract: A diffusion flame nozzle gas tip is provided to convert a dual fuel nozzle to a gas only nozzle. The nozzle tip diverts compressor discharge air from the passage feeding the diffusion nozzle air swirl vanes to a region vacated by removal of the dual fuel components, so that the diverted compressor discharge air can flow to and through effusion holes in the end cap plate of the nozzle tip. In a preferred embodiment, the nozzle gas tip defines a cavity for receiving the compressor discharge air from a peripheral passage of the nozzle for flow through the effusion openings defined in the end cap plate.

Abstract: An injector for a burner is provided in which assemblies for injecting the main and auxiliary fuels and the oxidizer are arranged radially, one around the other, about a longitudinal axis. The injector has a main-fuel outlet, an oxidizer outlet, and an auxiliary-fuel outlet on the respective assemblies. The injector can be used in incinerator applications, such as in methods for producing clinker.

Abstract: The invention is directed to a stable capillary microjet and a monodisperse aerosol formed when the microjet dissociates. A variety of devices and methods are disclosed which allow for the formation of a stream of a first fluid (e.g. a liquid) characterized by forming a stable capillary microjet over a portion of the stream wherein the microjet portion of the stream is formed by a second fluid (e.g. a gas). The second fluid is preferably in a different state from the first fluid—liquid-gas or gas-liquid combinations. However, the first and second fluids may be two different fluids in miscible in each other.

Abstract: There is a disclosed a liquid delivery system (LDS) used upon deposition of a copper wire through chemical vapor deposition method in the process of manufacturing a semiconductor device. The LDS comprises a copper liquid materials supply [means] apparatus for providing copper liquid materials of a room temperature to a vaporizer [means] via an orifice which is rotating at a constant speed; a carrier gas supply [means] apparatus for jetting a carrier gas kept to the temperature at which copper will be vaporized via jet nozzles and forming the copper liquid materials to be supplied to said vaporizer [means] via said orifice with micro drops; and a jet [means] device for jetting vaporized copper stream to a reactive chamber, wherein said micro drops being vaporized in the vaporizer [means].

Abstract: A nozzle 10 including a member 12 which selectively receives a first material 18 and a second material 22, and which selectively atomizes the second material 22 by use of the first material 18. The nozzle 10 further includes a diffuser member 50 which receives the atomized second material 22 and which diffuses the received and atomized second material 22 while substantially, concomitantly, and tangentially applying the first material 18 to the diffused second material 22, thereby allowing the atomized second material 22 to be desirably deposited upon a target location 7 and/or object 9.

Abstract: Process for the combustion of hydrocarbon fuel in a burner being exposed to corrosive atmosphere, wherein outer surface of the burner being protected by passing a non-corrosive atmosphere along the outer burner surface.

Abstract: The invention is directed to a stable capillary microjet and a monodisperse aerosol formed when the microjet dissociates. A variety of devices and methods are disclosed which allow for the formation of a stream of a first fluid (e.g. a liquid) characterized by forming a stable capillary microjet over a portion of the stream wherein the microjet portion of the stream is formed by a second fluid (e.g. a gas). The second fluid is preferably in a different state from the first fluid—liquid-gas or gas-liquid combinations. However, the first and second fluids may be two different fluids in miscible in each other.

Abstract: The technical field of the invention is making a burner capable of using one or more fuels, optionally simultaneously, together with particular features for the gas feed ducts. Such a burner comprises at least four substantially concentric ducts for feeding fuel and primary combustion air, including a duct for axial air and a duct for rotary air disposed outside any fuel outlet opening, and a central stabilizer placed at the outlet of a central primary air delivery duct opening out through orifices of said stabilizer, which stabilizer projects radially relative to any opening of a tube placed inside said central primary air duct and inside which a fuel pipe opens out. According to the invention, said burner has at least one additional gas feed opening out into said stabilizer and disposed around said opening having any diameter lying between the tube within which the fuel pipe opens out and the outer tube defining the central primary air delivery duct.

Abstract: A combustion system includes a combustion chamber and a fuel injection apparatus, where a radial inflow swirler stage in the injector housing includes a plurality of radial inflow swirlers spaced longitudinally from each other to direct air radially inward in a swirling motion to cause fuel streams to swirl and thoroughly mix with air before passing into the combustion chamber. A plurality of liquid fuel nozzles are supported in the housing in an annular arrangement to dispense liquid fuel in a plurality of sprays in the downstream direction. A plurality of gaseous fuel nozzles are also provided in the housing supported in an annular arrangement intermediate the liquid fuel nozzles. The plurality of gaseous fuel nozzles include a series of nozzles arranged in radial spokes between each of the liquid fuel nozzles, with the size of the openings in the gaseous fuel nozzles increasing in the radially outer direction from the longitudinal axis of the housing.

Abstract: This invention is directed to a method and apparatus of delaying the reaction between a first reactive gas and a second reactive gas as the first reactive gas flows into the second reactive gas. The method comprises the steps of surrounding the first reactive gas with a non-reactive gas to form an insulated first reactive gas; and flowing the insulated first reactive gas into the second reactive gas. A sweep gas is used to impart momentum to the insulated first reactive gas. The apparatus comprises three coaxial tubular members which are used to introduce the first reaction gas, the non-reactive gas, and the sweep gas. The apparatus may be installed in a semiconductor device fabrication process either just upstream of the house exhaust line or upstream of an ODC or air pollution abatement device.

Abstract: The fuel injector nozzle for a gasifier includes a protective refractory sheath that is flush mounted at a downstream end proximate the nozzle outlet portion. The refractory insert is of annular form to surround the nozzle outlet. The annular refractory member can be a one-piece structure or a multi-segment structure of preferably not more than four pieces. Whether the annular refractory member is a one-piece structure or a multi-segment structure, it is recessed in a downstream end surface of the fuel injector nozzle and retained in the recess by locking pins or by thread-like engagement between a projection and a groove that are provided on complementary inter-engaging surfaces of the recess and the refractory member. The retaining structure provided on the annular refractory member and at the recess in which the refractory member is disposed securely maintain the annular refractory protective member in position.