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Flame shaping, or distributing components in combustion zone

Subclass of:

431 - Combustion

431002000 - PROCESS OF COMBUSTION OR BURNER OPERATION

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
431009000 Whirling, recycling material, or reversing flow in an enclosed flame zone 35
431010000 Oxidizer added to region of incomplete combustion 13
Entries
DocumentTitleDate
20130045450SYSTEM AND METHOD FOR REDUCING COMBUSTION DYNAMICS IN A COMBUSTOR - A system for reducing combustion dynamics in a combustor includes an end cap that extends radially across the combustor and includes an upstream surface axially separated from a downstream surface. A combustion chamber is downstream of the end cap, and tubes extend from the upstream surface through the downstream surface. Each tube provides fluid communication through the end cap to the combustion chamber. The system further includes means for reducing combustion dynamics in the combustor. A method for reducing combustion dynamics in a combustor includes flowing a working fluid through tubes that extend axially through an end cap that extends radially across the combustor and obstructing at least a portion of the working fluid flowing through a first set of the tubes.02-21-2013
20100159406Combustion Furnace Humidification Devices, Systems & Methods - An injection device for humidifying a reactor space and injecting and dispersing reagents into the humidified reactor space, including an exterior injection duct for high-velocity gas injection and at least one interior injector for reagent and humidifying agent injection as droplets with a droplet environment. The high-velocity gas ensuring the humidification of the liquid droplet environment and mixing and dispersion of the liquid reagent droplets into the reactor. A multiple injection device system and a method for operating the system are also described.06-24-2010
20120208133MULTI-STAGE DECORATIVE BURNER - The invention provides systems and methods for multi-stage burners. The burner may accept a variable input fuel stream, which may be divided into a plurality of output fuel streams. The fuel stream may be divided by a pressure-actuated flow separator that may distribute an increasing amount of fuel to a secondary flow stream as the input flow rate of the input fuel stream increases. One or more of the output streams may be conditioned to provide a desired flame characteristic. The multi-stage burners may be decorative burners, and may be used for theatrical displays or other fire displays.08-16-2012
20130157204METHOD AND APPARATUS FOR A DUAL MODE BURNER YIELDING LOW NOx EMISSION - A method and apparatus for a burner adapted to heat a furnace or other environment of use. In particular, a burner for providing a fuel gas in combination with an oxidant to effect controlled reaction of the fuel gas in a manner to reduce NOx emissions is described. Combustion of the fuel gas is shifted from the burner combustor to a location outside the burner once the temperature within the furnace/radiant tube has reached a sufficient level to complete combustion of the fuel gas.06-20-2013
20100104990WIDE FLAME BURNER - A burner comprises a refractory nozzle body enclosing a cavity and having a plurality of conduits each extending from said cavity to openings in the exterior of said nozzle body, wherein the axes of all said conduits lie in a common plane and the axes of any two of said conduits are either parallel to each other or form an angle diverging from said nozzle body, the nozzle body also having a passageway extending from said cavity to an opening in said nozzle body located on the opposite side of said cavity from said conduits; and a reactant distributor, made of metal, comprising a plurality of feeders each comprising a first tube and a second tube surrounding and coaxial with the first tube and defining an annular space between said tubes, there being one feeder in each of said conduits, wherein the distance from the ends of the first and second tubes of each feeder to the opening of the conduit in which the feeder is located is at least 1.5 times the diameter of said opening, and an inlet for oxidant and an inlet for fuel, wherein each first tube is connected in fluid communication with one of said inlets and each of said annular spaces is connected in fluid communication with said inlet for oxidant, wherein said distributor is releasably sealably engaged in said passageway with said inlets accessible outside said nozzle body, and wherein said distributor is removable out of said nozzle body through said passageway.04-29-2010
20090123882METHOD FOR OPERATING A BURNER - A method and an apparatus are provided for the combustion of gaseous fuel containing hydrogen or consisting of hydrogen, with a burner which provides a swirl generator, into which liquid fuel is fed centrally along a burner axis, at the same time forming a conically shaped liquid fuel column which is surrounded by a rotating combustion air stream which flows tangentially into the swirl generator and into which, additionally, a gaseous and/or liquid fuel is injected so as to form a fuel/air swirl flow which is transferred downstream of the swirl generator, along a transitional portion, into a mixing zone following the transitional portion downstream and which is ignited and burnt in a combustion chamber following downstream, at the same time forming a backflow zone.05-14-2009
20090017402Passive mixing device for staged combustion of gaseous boiler fuels - A steam generating boiler having a matrix means for reducing combustion volume. Matrix means is placed in the combustion furnace of a steam generating boiler, preferably downstream of fuel and oxidant stream. Matrix means produces a shorter combustion envelope than that of a conventional boiler, allowing for reduced volume steam generating boilers.01-15-2009
20090311640Heating Method - Hot products of combustion are provided beside an outer surface of a load to be heated, and are given a non-uniform temperature profile in a control direction extending across the outer surface of the load. The non-uniform temperature profile of the hot products of combustion is varied within a range that is predetermined relative to the distance that the outer surface of the load extends in the control direction, whereby the load can be given a predetermined temperature profile in the control direction.12-17-2009
20130071796Oxy-Fuel Burner Arrangement - An oxy-fuel burner arrangement having a first conduit having a nozzle aperture with an aspect ratio, D1/D2, of greater than or equal to about 2.0. The first conduit is arranged and disposed to provide a first fluid stream, where the first fluid stream is a combustible fuel. The burner arrangement further includes at least one second conduit arranged and disposed to provide a second gas stream circumferentially around the first fluid stream, where the second gas stream includes oxygen. A precombustor is arranged and disposed to receive the first fluid stream and second gas stream where an oxy-fuel flame is produced. The geometry of the nozzle aperture and the cross-sectional geometry of the first conduit are dissimilar.03-21-2013
20090297994Burner apparatus and methods for making inorganic fibers - Inorganic fiber production burner apparatus and methods of use are disclosed. One burner includes a refractory block adapted to be in fluid connection with sources of primary oxidant and fuel, the refractory block having a fuel and primary oxidant entrance end and a flame exit end, the flame exit end having a substantially rectangular flame exit having a width greater than its height, the refractory block defining a combustion chamber and a second chamber fluidly connecting the combustion chamber and the flame exit end; and an oxygen manifold fluidly connected to the combustion chamber and adapted to route oxygen to the combustion chamber through a plurality of passages through the refractory block. This abstract allows a searcher or other reader to quickly ascertain the subject matter of the disclosure. It will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).12-03-2009
20100330510METHOD FOR LOW NOx COMBUSTION OF SYNGAS / HUGH HYDROGEN FUELS - A method is provided for achieving low NOx in the operation of a non-premixed combustion system by reacting a fuel-rich mixture to produce partial reaction products plus heat, transferring a portion of the heat to a bypass air stream, and passing the cooled partial reaction products into non-premixed contact and combustion with a stoichiometric portion of the heated bypass air stream. A supply of fuel and a supply of air is provided; and a fuel-rich mixture is formed and reacted to produce partial reaction products plus a heat of reaction. A portion of the heat of reaction is transferred to a bypass air stream and the cooled partial reaction products are passed into non-premixed contact and combustion with a stoichiometric portion of the heated bypass air stream.12-30-2010
20080268386Method for embodying a low flame-spread coil incense - A method for embodying a low flame-spread coil incense comprises a plurality of coils, radiuses of which are extended outward coil by coil, connected with each other, and between the coils being provided with a specific radial distance. After lighting the coil incense, its bottom is contactingly placed on a refractory material so as to lower flaming temperature for controlling flame spreading time, thereby greatly reducing the quantity of manufacturing material in the condition of having a specific flaming time. Furthermore, by using some characteristics, such as the specific gravity of tar is greater than that of smoke and the condensing effect of the refractory material, the tar may attachably deposit on the refractory material for effectively lowering the smoke quantity.10-30-2008
20090148799METHOD FOR BURNER AND BURNER DEVICE - Burner device (06-11-2009
20100279236Device for intensifying a flame - A device for intensifying a flame, comprising an object intended to be placed in front of the burner head, at a distance from said burner head, so that it is placed at least partly inside a flame extending from the burner head, and furthermore, said object being arranged to glow, heated by said flame. An apparatus for applying the device, for heating a liquid or air, comprising a burner and a combustion chamber, wherein the apparatus comprises an object in the combustion chamber. In the method, the device is installed in front of the burner head, or in an apparatus for heating a liquid or air, comprising an opening for the burner head, and a combustion chamber.11-04-2010
20100099052Tubular flame burner and combustion control method - A tubular combustion chamber including a tubular combustion chamber whose front-end is open; and, fuel-gas spraying nozzles and oxygen-containing-gas spraying nozzles, for spraying a fuel and an oxygen-containing-gas separately and individually, or for spraying a premixed gas; wherein respective orifices of the respective nozzles face toward an inner surface of the combustion chamber, so as to spray the fuel-gas and the oxygen-containing-gas in a neighborhood of a tangential direction of an inner circumferential wall of the. combustion chamber; wherein the tubular flame burner is a multi-stage tubular burner that is unified in a body, by using a plurality of the tubular flame burners, and by connecting the front-end of the tubular flame burner with a smaller inner diameter of the combustion chamber into the rear-end of the tubular flame burner with a greater inner diameter of the combustion chamber.04-22-2010
20090202953Glycerin burning system - A glycerin burning system having a specialized atomizing burner capable of combusting a continuous feed of crude or pure glycerin. The burner includes a two-fluid mixing nozzle. The nozzle has an internal distributor which mixes two fluid feed streams as the fluids are expelled through an orifice. The distributor has channels which cause the air to swirl before mixing with the glycerin. An impingement pin is provided outside the orifice to diffuse the mixture and reduce combustion air speed. To improve performance, the burner's air feed line is subjected to combustion chamber to preheat the air passing through the feed line before the air is mixed with the glycerin.08-13-2009
20090280443BURNER WITH LANCE - The present invention relates to a burner for a combustion chamber of a gas turbine plant. The burner includes a lance for introducing gaseous fuel into the burner. A shaft of the lance has at least one nozzle for introducing gaseous fuel into the burner. A main injection direction of the respective nozzle is oriented onto a portion of a burner wall. An introduction device for a diverting fluid is provided, which is designed for introducing a diverting fluid counteracting an impingement of the fuel flow on the burner wall.11-12-2009
20110200955Liquid Fuel Combustion Process and Apparatus - An apparatus for combustion of a liquid fuel, such as an atomizer or burner, and an associated method using the apparatus for combusting an atomized liquid fuel. The apparatus for combustion has in outer conduit, an inner conduit and a spray tip. The spray tip has a mixing chamber for receiving a liquid fuel and an atomizing gas, and an orifice for discharging the liquid fuel and atomizing gas mixture as an atomized liquid fuel. The inner conduit has external fins where at least some of the external fins contact the inner surface of the spray tip.08-18-2011
20080286705Stress Reduction Feature to Improve Fuel Nozzle Sheath Durability - A fuel nozzle sheath has a lateral opening for admitting air about a nozzle stem. The stress distribution along the perimeter of the window is smoothed out by increasing the corner radius of the window corner presenting higher stress concentration.11-20-2008
20080268387COMBUSTION EQUIPMENT AND BURNER COMBUSTION METHOD - Combustion equipment of a coaxial jet combustion scheme is provided that includes: a burner plate in which fuel and air are mixed with each other while the fuel and air pass through an air hole; a burner plate extension which is a portion of the burner plate and extends toward a combustion chamber side spaced apart from the air hole; and a protrusion disposed on the combustion chamber side of the burner plate extension so as to protrude in a direction where flow of the fuel moves. In the combustion equipment, a gap between opposite portions of the protrusion is greater than a diameter of the air hole and a flame source forming area is defined between the burner plate, the burner plate extension and the protrusion. The combustion equipment of a coaxial jet combustion scheme can achieve a further reduction in NOx emissions.10-30-2008
20110207061Microbial production of nitrous oxide coupled with chemical reaction of gaseous nitrous oxide - A bioreactor designed to produce N08-25-2011
20090220899Method for Burning of Gaseous and Burner - A method for burning gas in a burner, including leading the gas through an inner fuel tube (09-03-2009
20100183990Multi-Mode Combustion Device and Method for Using the Device - An apparatus for continuation of combustion with a combustion apparatus when the supply of the normal operating oxidant or normal operating fuel is disrupted, or temporally reduced. Air or oxygen enriched air or oxygen and a gaseous fuel or a liquid fuel or both a gaseous and liquid fuel are introduced into the combustion apparatus in place of the normal oxidant-fuel mixture to effect combustion and maintain the heating level in the furnace.07-22-2010
20100233639BURNER FOR REDUCING WALL WEAR IN A MELTER - A combustion gas flow for an atmosphere of a melter includes a first gas flow at a first velocity introduced into the atmosphere, and a second gas flow at a second velocity less than the first velocity introduced into the atmosphere for entraining corrosive or condensable vapors in the atmosphere and shrouding and inhibiting the first gas flow from entraining condensable or corrosive vapors at a higher rate than the second gas flow.09-16-2010
20100216079FUEL COMBUSTION - A system includes a first source containing a liquid fuel, a second source containing a gaseous fuel, and a combustion burner connected to the first and second sources and selectively in fluid communication with the liquid fuel and the gaseous fuel to receive the fuels. The burner is capable of switching between combustion of the liquid fuel and combustion of the gaseous fuel without modification to the burner or the system.08-26-2010
20110008736COMBUSTION SYSTEM,COMBUSTION METHOD, FUEL FLUID, PROCESS FOR PRODUCING THE FUEL FLUID, AND APPARATUS FOR PRODUCING THE FUEL FLUID - A combustion system, a combustion method and a fuel fluid, which can improve combustion efficiency of fuel while suppressing consumption of the fuel when the fuel is combusted, are provided as well as a method for producing the fuel fluid and an apparatus for producing the fuel fluid are provided. A combustion system 01-13-2011
20110033805LOW-ENERGY FLAME THROWER ARRANGEMENT AND A RELATED METHOD - A method for creating flames, wherein combustible powder material is injected into a gas stream (02-10-2011
20110086318METHOD AND APPARATUS FOR MAINTAINING STABLE FLAME CONDITIONS IN A GAS BURNER - A gas burner apparatus comprising a burner base disposed over a gas burner, a burner head disposed over the burner base, and one or more burner covers disposed over the burner head. A method comprising a burner base over a gas burner, providing a burner headwith one or more burner ports over the burner base, providing one or more burner covers over the burner head, and sliding one or more burner covers over at least one of the one or more burner ports.04-14-2011
20090311639Method for Heating a Charge - The invention relates to a method for heating a charge using a flame generated by a lance and/or a burner, characterized in that, in a first phase, the flame is directed towards the charge and in that, in a second phase, the flame is directed more or less parallel to the charge.12-17-2009
20100055627Burner And Method For Combusting Fuels - A burner includes separate fuel and oxidant conduits. The fuel conduit has inlet, transitional, and outlet sections, and the oxidant conduit has inlet and outlet sections. The cross sectional flow area of the fuel transitional section varies from an initial cross sectional flow area at the fuel intake to a different cross sectional flow area at the fuel outtake, and the cross sectional flow area of the fuel outlet section is substantially uniform. At least some of the oxidant inlet section is spaced around substantially all of at least a portion of at least one of the fuel inlet, transitional, and outlet sections. The cross sectional flow area of the oxidant outlet section is less than or equal to the cross sectional flow area of the oxidant inlet section and is substantially uniform, and at least some of it is spaced around substantially all of at least a portion of the fuel outlet section.03-04-2010
20090214989METHOD AND APPARATUS FOR STAGED COMBUSTION OF AIR AND FUEL - A method for operating a fuel-fired furnace including at least one burner is provided. The method includes channeling a first fluid flow to the at least one burner at a first predetermined velocity, and channeling a second fluid flow to the at least one burner at a second predetermined velocity during a first mode of operation of the at least one burner. The second predetermined velocity is different than the first predetermined velocity.08-27-2009
20110151386Particulate Fuel Combustion Process and Furnace - The present invention provides a process for operating a combustion furnace, wherein the combustion furnace comprises a combustion chamber defining a combustion zone within the combustion chamber and having at least one chamber wall facing the combustion zone, and at least one particulate fuel burner mounted in a chamber wall and adapted to generate a flame in the combustion zone by injecting oxidant in gaseous form and fuel in particulate form into the combustion zone for combustion therein. In the process, at least one particulate fuel burner is operated so as to alternate between a first phase in which the burner generates a wide flame proximate the chamber wall into which the burner is mounted and a second phase in which the burner generates a narrower flame directed away from the chamber wall into which the burner is mounted.06-23-2011
20120148962COMBUSTION CHAMBER AND METHOD FOR SUPPLYING FUEL TO A COMBUSTION CHAMBER - The combustion chamber has a body with nozzles to inject a fuel to be burnt therein. The nozzles define a plurality of groups to be fed in parallel. The nozzles of each group define at least two stages that are differently operated according to the different operating conditions. The combustion chamber also has a manifold for collecting a fuel to be distributed among the groups, a plurality of supply elements distributing the fuel originating from the manifold to each group, for each group, splitters for diverting the fuel coming from the supply elements between the stages.06-14-2012
20100310997DOMESTIC GAS APPLIANCE WITH FLAME CONTROL - A domestic gas appliance is disclosed. In one implementation the appliance includes a burner and a gas control valve situated to deliver and vary a flow of a gas to the burner. The gas control valve has an actuator that induces an opening and/or closing of the flow control valve dependent on a control signal delivered to the actuator. A control device is electrically coupled to the actuator and is used to control the opening and closing of the gas control valve. The control device is coupled to an audio input and is configured to receive an analog sound signal and to generate the control signal based on the analog sound signal. A method of modulating a flame in a burner of a domestic gas appliance is also disclosed. In one implementation the method includes producing an analog sound signal and subsequently creating a reference signal based on the analog sound signal. A control signal is produced using the reference signal with the relationship between the reference signal and the control signal being linear, logarithmic or potential. The control signal is delivered to an actuator of a gas control valve that is situated to control the flow of gas to the burner, the control signal acting upon the actuator to cause the actuator to open and/or close to modulate the flame in the burner.12-09-2010
20110053101DEVICE AND METHOD FOR MAINTAINING AND OPERATING A FLAME - Disclosed is a device and a method for maintaining and operating a flame. The device has a burner, a burner attachment having an outlet geometry, wherein on a side of the burner attachment facing away from the burner, an anode is provided on one side of the outlet geometry of the burner attachment. A dielectric is provided on the other side of the outlet geometry, wherein a cathode is located in the dielectric. The device and method: do not require continuous flame monitoring; positively influence the deposition behavior of layer-forming components of the fuel gas flame; and reduce the thermal impact of the burner and the operating costs thereof.03-03-2011
20100310998PREMIX FURNACE AND METHODS OF MIXING AIR AND FUEL AND IMPROVING COMBUSTION STABILITY - Premix furnace for heating an occupied space while producing lower NOx emissions and methods of mixing air and fuel delivered to a premix burner and of improving combustion stability. A mixing device may be located within an inlet tube, may have a flat surface that is perpendicular to the direction of fuel flow, or may have two surfaces held at substantially opposite angles to induce swirl. A mixing device may be attached to the fuel injector, may be made from a piece of sheet metal, and may have bends and a hole for attachment to the fuel injector. A fluidic diode in the inlet tube may improve combustion stability and may include a hollow frustum or a frustoconical portion, a cylinder concentric with the inlet tube, or a combination thereof. Some embodiments include refractory insulation lining the combustion chamber or may adjust for elevation or fuel characteristics.12-09-2010
20100323309Burner and Method for Reducing Self-Induced Flame Oscillations - A method for reducing self-induced flame oscillations is provided. In a first fluid mass flow flowing through a jet nozzle from a fluid inlet opening to a fluid outlet opening, a second fluid mass flow is injected on an axial position of the jet nozzle positioned downstream from the fluid inlet opening. One fluid mass flow includes air, and the other fluid mass flow includes a fuel. A second method for reducing self-induced flame oscillations is also provided. In a first fluid mass flow flowing through a jet nozzle from a fluid inlet opening to a fluid outlet opening, a second fluid mass flow is injected on a radial position of the jet nozzle in relation to the circumference of the jet nozzle. One mass flow includes air and the other fluid mass flow includes a fuel. Burners which ensure the execution of the method are also provided.12-23-2010
20100035194BURNER ARRANGEMENT - The invention relates to a burner arrangement (02-11-2010
20090111063LEAN PREMIXED, RADIAL INFLOW, MULTI-ANNULAR STAGED NOZZLE, CAN-ANNULAR, DUAL-FUEL COMBUSTOR - A lean premixed, radial inflow, multi-annular staged nozzle for creating three independent combustion zones within a can-annular, dual-fuel gas turbine combustor is provided. The nozzle includes a pilot zone fueled by a gas pilot nozzle and center cartridge; a flame holder zone fueled by an inner main gas fuel; a main flame zone fueled by an outer main gas fuel; a main radial swirler for mixing a portion of incoming air to the nozzle with the inner main gas fuel supply and the outer main gas fuel supply; an endcover; and means for controlling the ratio of an inner main gas fuel supplied and an outer main gas fuel supplied.04-30-2009
20110117506Coanda Gas Burner Apparatus and Methods - A gas burner apparatus for discharging a mixture of fuel gas, air and flue gas into a furnace space of a furnace wherein the mixture is burned and flue gas having a low content of nitrous oxides and carbon monoxide is formed is provided. The burner tile includes at least one gas circulation port extending though the wall of the tile. The interior surface of the wall of the tile includes a Coanda surface. Fuel gas and/or flue gas conducted through the gas circulation port follows the path of the Coanda surface which allows more flue gas to be introduced into the stream. The exterior surface of the wall of the tile also includes a Coanda surface for facilitating the creation of a staged combustion zone. Also provided are improved burner tiles, improved gas tips and methods of burning a mixture of air, fuel gas and flue gas in a furnace space.05-19-2011
20120040296Combustion of Oil Floating on Water - A method for combusting oil from an oil-containing layer floating on water as from an oil spill or well leak. In the method, an oxygen-containing gas is passed through a conduit, the oxygen-containing gas from the conduit is introduced proximate the oil-containing layer floating on water, and oil from the oil-containing layer is combusted with the oxygen-containing gas in the presence of a flame. The oxygen-containing gas is introduced with an oxygen molar flow rate sufficient to decrease the opacity of a smoke plume from the combusting oil.02-16-2012
20090214990FLAME BURNER AND METHOD FOR FLAME BURNING A METALLIC SURFACE - The invention relates to a flame burner having a nozzle (08-27-2009
20090214988COMBUSTION SYSTEMS AND PROCESSES FOR BURNING FOSSIL FUEL WITH REDUCED NITROGEN OXIDE EMISSIONS - Combustion systems having reduced nitrogen oxide emissions and methods of using the same are disclosed herein. In one embodiment, a combustion system is provided. The combustion system includes a combustion zone, which includes a burner for converting a fuel, under fuel rich conditions, to a flue gas. An intermediate staged air inlet is downstream from the combustion zone, for supplying intermediate staged air to the flue gas and producing fuel lean conditions. A reburn zone is downstream from the intermediate staged air inlet for receiving the flue gas. A process for using the combustion system and a method of reducing NO08-27-2009
20120009532DISTRIBUTED COMBUSTION PROCESS AND BURNER - During a heating phase, injection of a jet of fuel and oxidant (fuel annularly enshrouding oxidant or oxidant annularly enshrouding fuel) from a fuel-oxidant nozzle is combusted in a combustion space. During a transition from the heating phase to a distributed combustion phase, an amount of a secondary portion of either the fuel or oxidant is injected as a jet into the combustion space while the primary portion of that same reactant from the fuel-oxidant nozzle is decreased. At some point during the transition phase, a jet of actuating fluid is injected at an angle towards the jet of reactants from the fuel-oxidant nozzle and/or towards the jet of the secondary portion of reactant. The jet of primary portions of reactants and/or secondary portion of reactant is caused to be bent/deviated towards the other of the two jets. The staging of the secondary portion of reactant is increased until a desired degrees of staging and commencement of a distributed combustion phase are achieved.01-12-2012
20120009531DISTRIBUTED COMBUSTION PROCESS AND BURNER - During a heating phase, injection of a jet of fuel and oxidant (fuel annularly enshrouding oxidant or oxidant annularly enshrouding fuel) from a fuel-oxidant nozzle is combusted in a combustion space. During a transition from the heating phase to a distributed combustion phase, an amount of a secondary portion of either the fuel or oxidant is injected as a jet into the combustion space while the primary portion of that same reactant from the fuel-oxidant nozzle is decreased. At some point during the transition phase, a jet of actuating fluid is injected at an angle towards the jet of reactants from the fuel-oxidant nozzle and/or towards the jet of the secondary portion of reactant. The jet of primary portions of reactants and/or secondary portion of reactant is caused to be bent/deviated towards the other of the two jets. The staging of the secondary portion of reactant is increased until a desired degrees of staging and commencement of a distributed combustion phase are achieved.01-12-2012
20120208134DEVICES INCORPORATING NON-LETHAL PAYLOADS AND METHODS OF PRODUCING A FLASH - Non-lethal payloads may be customized for particular uses and desired visual and audible incapacitation based upon the selection of igniter/activators and illuminants used with the non-lethal payloads. Non-lethal payloads employing high flame temperature igniter/activators and illuminants of powder metals, powdered metals combined with oxidizers, and powdered metals combined with heat-activated chromophores may produce improved “flashes” and “bangs” for non-lethal payloads used with diversionary or other devices. Such devices and methods of producing illuminance and noise are also disclosed.08-16-2012
20110104622Gas-Fired Furnace With Cavity Burners - A gas-fired air conditioning furnace has a cavity burner configured to combust an air-fuel mixture at least partially within an interior space of the cavity burner. A method of operating a gas-fired furnace by flowing an air-fuel mixture into a cavity burner through a perforated wall of the cavity burner, combusting at least a portion of the air-fuel mixture within an interior space of the cavity burner, and flowing at least partially combusted air-fuel mixture into a heat exchanger. A gas-fired air conditioning device has a cavity burner that has a cylindrically shaped body and a cap on a first end of the body, each of the body and the cap being perforated. The device has a cylindrically shaped heat exchanger inlet tube and the cavity burner is at least partially concentrically received within the heat exchanger inlet tube.05-05-2011
20120231400BURNERS - The invention provides a nozzle-mixed burner for use in an endothermic process such as hydrogen reforming or ammonia reforming or ethylene cracking or EDC cracking. The burner comprises a fuel duct extending axially through a wall of the furnace. The fuel duct delivers gaseous fuel to an array of nozzles extending laterally to spray the fuel outwardly into an annular chamber defined by a cap. Combustion air is delivered to the chamber by way of a primary air duct. A convergent-divergent section of the duct and an outwardly divergent section of the chamber together form a radially extending venturi. Combustion of the fuel, supplemented by the venturi effect, draws the air through the duct by natural inspiration.09-13-2012
20090130615Method for Calcination of a Material with Low NOchi Emissions - The invention relates to a method for calcination of a material in which said material is heated by contact with a heat source essentially generated by means of a flame produced with at least one flow of fuel and primary air and a flow of secondary air, the flame comprising a first combustion zone with a temperature below 1500° C. and a second combustion zone with a temperature above 1500° C., where at least one flow of at least one inert gas is injected into the flame at the beginning of the second combustion zone and/or at least one flow of oxygen or a gas enriched in oxygen is injected into the second combustion zone.05-21-2009
20100209858COMBUSTION SYSTEM FOR ATOMIZING FUEL MIXTURE IN BURNER BOX - A burner system, for burning a liquid fuel/compressed air fuel mixture, comprising a discharge nozzle having a mixing chamber for mixing a liquid fuel with compressed air and discharging the fuel mixture via a discharge orifice. The burner system is coupled to a liquid fuel storage source for storing and supplying the liquid fuel, at a sight positive pressure, to the mixing chamber and the burner system also coupled to a source of compressed air which is supplied to the mixing chamber. An igniter is provided for igniting the fuel mixture, discharged from the discharge orifice in a substantially atomized form, for rapid and through combustion of the fuel mixture. Supplemental air is also supplied, via a variable speed supplemental airfan, to assist with complete combustion of the fuel mixture.08-19-2010
20120171629Flameless Combustion Burner - A burner has a fuel/oxidant nozzles and a pair of dynamical lances spaced on either side thereof that inject a jet of fuel and primary oxidant along a fuel injection axis, and jets of secondary oxidant, respectively. Jets of actuating fluid impinge against the jets of secondary oxidant to fluidically angle the jets of secondary oxidant away from the fuel injection axis. The action of the angling away together with staging of the oxidant between primary and secondary oxidant injections allows achievement of distributed combustion conditions.07-05-2012
20120082946METHOD FOR CARRYING OUT COMBUSTION IN AN INDUSTRIAL FURNACE - A method for combustion in an industrial furnace having fuel and a first oxidizer to heat a material includes arranging at least one lance in a sidewall of the furnace; supplying a second oxidizer with an oxygen content of at least 85 percent by weight in the form of a jet traveling at at least sonic velocity to the interior of the furnace through the at least one lance; running the jet of the second oxidizer in the horizontal plane above the material between and essentially in parallel with two consecutive rows of the roof burners; balancing an amount of the second oxidizer supplied per time unit so that the oxygen content supplied via the second oxidizer constitutes at least 50 percent by weight of the total supplied oxygen per time unit in the furnace.04-05-2012
20100233640Glycerin burning system - A glycerin burning system having a specialized atomizing burner capable of combusting a continuous feed of crude or pure glycerin. The burner preferably includes an impingement nozzle. The nozzle has an internal distributor which mixes two fluid feed streams (glycerin and air) and expels the fluid through an orifice. The distributor has channels which cause the air to swirl before mixing with the glycerin. An impingement pin is provided outside the orifice. The rapidly ejected glycerin/air mixture strikes a target surface on the impingement pin which transforms the mixture into a fine mist having a reduced velocity. The nozzle is located on the central axis of a turbulator which surrounds the atomized spray with rapidly revolving air. An outlet choke is provided on the combustion chamber to limit the speed of the flow so that steady combustion is maintained.09-16-2010
20100203460PROCESS OF EXTINCTION, EXPANTION AND CONTROLLING OF FIRE FLAMES THRU ACOUSTIC - Process of extinguishing, expansion, and controlling of the fire flames by acoustic action, where utilizes the pressure alteration causing rarefactions and compressions in the particles generated by the acoustic waves in a combustible, oxidizing, or mixed environment. The factors that influence the control of the flames intensity are: AMPLITUDE, the FREQUENCY and the STANDING WAVE MODE. The standing wave produces two effects: the node and the womb, so the position of the node we get the flame extinguished and the position of the womb to increase the flame. When the rarefactions frequency and amplitude are greater than the burning rate then the flame is diminished until it is off. When the resonance occurs (ω=ω08-12-2010
20100167219BURNER BLOCK FOR PRODUCING FLAT FLAME - A burner and process for a melter is provided which includes a combustion stream transitioning from an elliptical cross section to a circular cross section to provide a flat flame from the circular cross section for combustion in the melter.07-01-2010
20130143169Staged Oxy-Fuel Burners And Methods For Using The Same - A burner including a central oxidant nozzle defining a central axis of the burner, and a plurality of flame holders each having an axis spaced apart from the axis of the burner, each flame holder including a high shape factor nozzle including a nozzle opening having a shape factor from about 10 to about 75, the shape factor being defined as the square of the nozzle perimeter divided by twice the nozzle cross-sectional area, and an annular nozzle surrounding the high shape factor nozzle, wherein the high shape factor nozzle is configured to be supplied with one of a fuel gas and an oxidizer gas, and the annular nozzle is configured to be supplied with the other of a fuel gas and an oxidizer gas.06-06-2013
20130143168Rapid Energy Release Burners And Methods For Using The Same - A burner having a high shape factor nozzle including a nozzle opening having a shape factor from about 10 to about 75, the shape factor being defined as the square of the nozzle perimeter divided by twice the nozzle cross-sectional area, and an annular nozzle surrounding the high shape factor nozzle, wherein the high shape factor nozzle is configured to be supplied with one of a fuel gas and an oxidizer gas, and the annular nozzle is configured to be supplied with the other of a fuel gas and an oxidizer gas. A method of rapid energy release combustion, including supplying a fuel gas and an oxidizer gas to a burner having a high shape factor nozzle and an annular nozzle surrounding the high shape factor nozzle.06-06-2013
20130095436BURNER COMBUSTION METHOD - A burner combustion method is employed in which at least two burners (04-18-2013
20130115561COMBUSTOR AND METHOD FOR SUPPLYING FUEL TO A COMBUSTOR - A combustor includes an end cover, an end cap downstream from the end cover, and tubes that extend through the end cap. An outer support tube extends downstream from the end cover and connects to an upstream surface of the end cap. An inner support tube extends downstream from the end cover and connects to a downstream surface of the end cap. A first plenum surrounds the inner support tube between the end cover and the upstream surface and extends radially between the upstream and downstream surfaces. A second plenum surrounds the first plenum between the end cover and the upstream surface and extends radially between the upstream and downstream surfaces.05-09-2013
20130101943COMBUSTOR AND METHOD FOR CONDITIONING FLOW THROUGH A COMBUSTOR - A combustor includes an end cap that extends radially across a portion of the combustor and includes an upstream surface axially separated from a downstream surface. A combustion chamber is downstream of the end cap. Premixer tubes extend from a premixer tube inlet proximate to the upstream surface through the downstream surface to provide fluid communication through the end cap and include means for conditioning flow through the plurality of premixer tubes. A method for conditioning flow through a combustor includes flowing a working fluid through a first and second set of premixer tubes that extend axially through an end cap, wherein the second set of premixer tubes includes means for conditioning flow through the second set of premixer tubes, and flowing a fuel through the first or second set of premixer tubes.04-25-2013

Patent applications in class Flame shaping, or distributing components in combustion zone

Patent applications in all subclasses Flame shaping, or distributing components in combustion zone