Abstract: In a gas-operated premixing burner for the combustion chamber of a gas turbine, the fuel injected within a premixing space (21) by means of a plurality of nozzles (17) is intensively mixed with the combustion air prior to ignition. The nozzles are arranged around a burner axis (10). In order to influence the fuel profile at outlet from the burner in a specific manner, the fuel concentration in the region of the burner axis is kept greater than the average fuel concentration at the burner outlet plane (22). For this purpose, additional burner nozzles (23) are provided in the region of the burner axis (10). The additional burner nozzles (23) can be supplied via a separate fuel conduit (24).

Abstract: A device for inhibiting NOx production is disposed in a gas furnace combustion chamber. The device includes a baffle member for dividing the combustion chamber into first and second regions. A fuel-rich mixture of gas and primary combustion air is ignited by an inshot burner and the flame is drawn into the combustion chamber by an induced draft blower along with secondary combustion air. The combustion chamber is configured such that in the first region (i.e., upstream of the baffle member) turbulent mixing of the secondary combustion air with the flame is inhibited to maintain a relatively gas-rich flame. The baffle member channels the flame and secondary combustion air into a convergent flow path and the passage of the flame and secondary combustion air over the baffle member creates turbulence, which enhances mixing between the flame and secondary combustion air in the second region of the combustion chamber (i.e., downstream of the baffle member).

Abstract: A process and apparatus for cyclonic combustion with ultra-low pollutant emissions and high efficiency wherein a fuel and primary combustion air mixture is tangentially injected into a reducing primary combustion zone of a cyclonic combustor. The primary combustion air is injected into the reducing primary combustion zone in an amount equal to between about 30% and about 90% of a stoichiometric requirement for complete combustion of the fuel. Secondary combustion air is tangentially injected into an oxidizing secondary combustion zone of the cyclonic combustor, in an amount equal to between about 10% and about 90% of the stoichiometric requirement for complete combustion of the fuel. Primary combustion products from the reducing primary combustion zone are mixed with the tangentially injected secondary air for completing combustion within the oxidizing secondary combustion zone.

Abstract: A burner assembly is provided for combining oxygen and fuel to produce a flame. The burner assembly includes a burner block formed to include a flame chamber having inlet and outlet openings, a bypass structure for conducting oxygen outside of the flame chamber to the outlet opening of the flame chamber and structure for discharging fuel into the flame chamber formed in the burner block.

Abstract: In order to improve a burner for generating hot gas comprising a burner pipe, a nozzle arranged in the burner pipe and having an outlet in its front face, a fuel jet exiting through the outlet, a shield arranged near the nozzle for subdividing the burner pipe into a precombustion chamber located upstream and accommodating the nozzle and a combustion chamber located downstream, a central passage arranged in the shield for the fuel jet exiting from the outlet and a plurality of openings surrounding the passage in the shield, combustion air passing through the openings from the precombustion chamber into the combustion chamber such that deposits are no longer formed therein, it is suggested that an air gap is provided between the shield and the nozzle, combustion air passing through the air gap from the precombustion chamber through the passage into the combustion chamber, and that a rim of the passage is provided with a flow disruption edge for the combustion air passing through the air gap.

Abstract: A burner having a primary flame zone and a secondary flame zone. The throat of the quarl in the center of the primary flame zone is provided with a gas nozzle supported by a swirl element. The orifices of the nozzle are radially and obliquely distributed so that the gas introduced via the frustoconical chamber mixed with the primary air to form a swirl current. The frustoconical chamber extends to the inner surface of the burner to form a circular extended section to restrain the width of the flame; the extended section is parallel to the secondary air inlets distributed on the burner body around the periphery of the frustoconical chamber to effectively control the formation of NOx during combustion.

Abstract: A premixing burner on the double-cone principle consists essentially of two hollow conical partial bodies (111, 112) which are interleaved in the flow direction and whose respective center lines (113, 114) are offset relative to one another. The adjacent walls of the two partial bodies form tangential gaps (20) in their longitudinal extent for the combustion air. Gas inlet openings (117) distributed in the longitudinal direction are provided in the walls of the two partial bodies. The air is guided into the tangential gaps (20) via vortex generators (9) of which a plurality are arranged adjacent to one another. The fuel is introduced into the gaps (20) in the immediate region of the vortex generators (9).Using the novel static mixer which the three-dimensional vortex generators represent, longitudinal vortices without recirculation region can be generated in the inlet gap through which flow occurs.

Abstract: A firing installation includes a combustion space fed by premixing burners having combustion air inlet slots along the length of the burner bodies that create a tangentially directed inflow of combustion air. Fresh air guides are positioned along the inlet slots upstream to guide fresh air into the slots, and include an end plate having a plurality of perforations that act as air injection nozzles. Movement of fresh air through the nozzles creates a vacuum that draws combustion air from the combustion space into the inlet slots where it mixes with the fresh air to form a combustion gas mixture.

Abstract: A burner unit has a fuel dispersion arrangement at a burner head leading to a flame region which distributed fuel from longitudinal slots extending along trailing edges of spinner vanes of a spinner vane assembly. The spinner vane assembly is disposed transversely across a flow channel of combustion air past the burner head and has a function of deflecting the axial flow of the combustion air radially outward into a conical flow. The deflective air flow pressure distribution over the spinner vanes contributes to induction and mixing of the fuel with the combustion air as the combustion air enters the flame region of the burner. Combustion gases resulting from a combustible mixture achieved in this manner have resulted in emission products with pollutant levels within currently specified limits.

Abstract: A method for reducing the formation of nitrogen oxides (NO.sub.x) in air-fuel and oxygen-enriched air-fuel burners is disclosed wherein oxygen is introduced directly into the visible flame of the burner, whereby the beneficial effects of oxygen enrichment and the reduced formation of NO.sub.x can be realized simultaneously in the operation of such burners.

Abstract: A burner with an electric ignition device, for use in an internal combustion engine, a combustion chamber of a gas turbine set, or for a furnace installation, includes two hollow part-conical bodies that are positioned to form a conical combustion space and are offset so that longitudinally extending, tangential inlet slots are formed to conduct combustion air into the combustion space. Inflow orifices provided at the tangential inlet slots feed fuel to the inflowing combustion air to be mixed and carded into the combustion space. An electric ignition device is positioned so that spark producing ends are positioned at a central vertex region of the combustion space. The position of the ignition device protects the device from excessive thermal loading, and allows the burner to be operated at a higher, more efficient temperature.

Abstract: A gas-fired burner incorporating an air driven jet pump for mixing air, fuel, and recirculated flue gas with reduced heat loss from the recirculated flue gas is disclosed. The burner is configured for the staged introduction of combustion air to provide a fuel-rich combustion zone and a fuel-lean combustion zone. Internal flue gas channels deliver cooled flue gas to the primary fuel-rich combustion zone. A valve assembly may be provided to control the flow of flue gas. Secondary air channels concentrically arranged within the flue gas channels deliver superheated, staged air to the secondary fuel-lean combustion zone. Heat is transferred from the hot flue gas to the counterflowing cooler secondary air. The burner achieves reduced NO.sub.x emission levels in high temperature applications which use preheated combustion air with no or minimal loss in thermal efficiency from flue gas recirculation.

Abstract: In a gas-fired stove or oven, gas is burned in a porous ceramic surface combustion burner which generates selective emissive radiation in a narrow band. The high temperature surface of the burner includes a narrow band quantum emitting substance such as rare earth metal oxide. Relatively shorter wavelength radiation from this quantum emitting surface illuminates process targets having an absorption spectrum nearly matched to the emission spectrum of the burner surface, for a variety of applications such as cooking. The selected emission may be passed through a glass top stove to heat a pot with an absorptive bottom or may pass on through a glass pot to heat the food directly.

Abstract: A gas burner has a domed head for shielding a plurality of gas outlets which are provided along the periphery of the gas burner. The gas outlets extend outward to perform the burning function. A flange extends outward along a periphery of the domed head and a skirt extends downward from and along a periphery of the flange. The bottom of the skirt is preferably 2 mm high above the gas outlets in order not to interfere with the flow of the gas.

Abstract: A burner assembly (10) for a radiant heater of the infrared type. The burner assembly includes a burner tube (12), a generally cylindrical mixing cup assembly (14), means (16) for mounting the cup assembly within the burner tube, means (18) for introducing air into the upstream end of the burner tube, and means (20) for introducing combustible gas into the burner cup, the gas and air being thoroughly mixed together in the burner cup. The cup assembly includes a generally cylindrical mixer tube (32), and passageway means at the downstream end, the passageway means including a ceramic block (34) and a metallic grid (36) in contact with the downstream face of the ceramic block. The ceramic block has a plurality of relatively small orifices (34.1) which extend through the block. The metallic grid (36) has a plurality of relatively small apertures (36.3) and a large central aperture (36.4).

Abstract: A device for mixing two gaseous components, particularly in the context of a burner in which it is desired to mix the two gaseous components prior to combustion. The device includes a tangential inlet flow duct which opens into an inlet flow gap. A first gaseous component flows in through this inlet flow gap, and a second gaseous component flows through inlet flow nozzles provided in the region of the inlet flow gap. The arrangement achieves particularly intimate mixing, such that an improved burner is provided. Ramps are disposed in the region of the inlet flow duct, with the ramps including an end having a separation edge in the inlet flow gap. The inlet flow nozzles are arranged in the region around the separation edge such that mixing is promoted by longitudinal vortices occurring in the region.

Abstract: A tube assembly, such as a flame tube for a gas turbine plant, includes a tube segment having an inner region for guiding a hot gas in one flow direction. A heat shield faces toward the inner region and includes a plurality of bricks being disposed side by side. At least one metal support frame supports the heat shield. The support frame has a plurality of conduits for supplying a cooling gas and a lip encompassing the tube segment and substantially covering the conduits toward the inner region leaving a slit for conducting the cooling gas from the conduits past the lip to the inner region.

Abstract: This invention relates to a combustion chamber and a method for burning waste material, such as waste oil, hazardous chemicals, and municipal garbage or trash, in a manner which generates very little smoke, particulate matter, unburned hydrocarbons, or potentially hazardous fumes in the exhaust gases. The combustion chamber is enclosed within an outer wall which provides an inlet for air, fuel, and burnable waste material, and an outlet for exhaust gases. Enclosed within the outer wall is an annular wall, which divides the chamber into a central burning region inside the annular wall, and an annular space between the outer wall and the annular wall. The central burning region contains a primary burning zone, while the annulus space carries a portion of the inlet air along the length of the chamber.

Abstract: In a low NOx burner, oil and gas are distributed into the combustion zone from within a central tube, surrounded by an outer tube to define an annular channel between the central tube and the outer tube. A windbox surrounds the inner and outer tubes to introduce air into the annular channel and through openings in the inner tube into the central tube. The central tube and outer tube are sized so that the velocity of air through the outer tube is substantially greater than the velocity of air flow through the inner tube to the combustion zone so that an axial recirculating air flow is generated in the combustion zone. The difference in the velocity of the air streams is maintained small enough so that minimum turbulence is generated in the combustion. The air flow paths are constructed so that no angular rotation in the air flow occurs in the combustion zone.

Abstract: To minimize the NO.sub.x emissions by means of water in the combustion of a fuel, without incurring the risk of higher CO emissions arising instead, the sensitive ignition zones of a burner (A) are penetrated by compact water jets (11) (solid jets) at the point where a freshly fed fuel/air mixture is continuously ignited anew, in such a way that these zones are not disturbed. In this way, instabilities, flame pulsations and/or poor burn-out, which are responsible for a rapid increase in CO emissions during combustion, are prevented. In the interior of the flame, the water jets (11) then burst open and the water is distributed exactly where it counteracts the NO.sub.x emissions.

Abstract: An improved liquid fuel combustion device comprising a combustion chamber, a fuel inlet nozzle communicating with said combustion chamber, means for delivering a stream of turbulent air into said combustion chamber in a manner to cause liquid fuel to flow into an mix with said air stream, and means for igniting the mixture. If desired, additional air may be provided to promote more complete burning of the fuel.

Abstract: A gas burner is described having a cylindrical combustion chamber having at least two spaced apart counter-rotation stationary tangential air injectors and at least three sets of radial injection holes in between for admitting air under pressure in the combustion chamber to cause adjacent counter-rotation air turbulence regions in said combustion chamber. The combustion chamber has a closed end and an open end with a gas injector tube extending in the chamber from the closed end and disposed centrally therein. The injector tube has combustion gas injection ports at least upstream and downstream of the at least two air injectors to create a combustion mixture which is initially fuel-lean to generate a flame having a lower temperature and producing less nitrogen oxide than with conventional gas burners of this type. An air chamber is provided about at least a portion of the combustion chamber and communicates with the tangential air injectors.

Abstract: The process for the continuous combustion of fluid fuel, for example fuel oil or gas, comprises the flow of several air jets through the opening of a screen, these air jets being arranged in such a manner that a multidimensional layering of mixtures of fuel, recirculated flue gas and air in the axial, radial, and circumferential directions is obtained within a fire tube. In this manner, the amount of noxious combustion products is reduced to values which are lower than the most severe emission limits in the world, namely the Swiss pollution standards.

Abstract: A three-chambered combustion burner is provided with a seed fuel under pressure to burn simultaneously injected waste products such as incompletely combusted exhaust fumes or air entrained combustible solid waste. An explosive mixture is provided in a first chamber and ignited. The heated and pressurized gas products are ejected into a second smaller combustion chamber into which air is injected. The hot and incompletely combusted products in the second chamber explosively reignite and are ejected into a yet smaller third combustion chamber. Air is again injected into the third combustion chamber wherein the products again explosively reignite to be ejected through a jet nozzle. The heat energy output of the burner or its propulsive momentum thrust may be utilized as appropriate in other applications. The toxicity of the gaseous or solid waste products burnt in the chambers is reduced and oxidized by the injection of air and hydrolization of water also injected with the waste products.

Abstract: Fuel is burned in accordance with a burning method and apparatus in two stages and in the presence of first and second oxygen-containing gases, respectively. The second oxygen-containing gas has a higher concentration of oxygen than the first oxygen-containing gas. The fuel stream is burned in a first of the two stages at a first equivalence ratio sufficiently greater than 1.0, so that thermal NO.sub.x formation is inhibited, a more heat transfer effective luminous flame is achieved and a combustible mixture comprising unburned and partially oxidized fuel and fuel radicals is produced for combustion in the second of the two stages. The combustible mixture is burned in the second of the two stages at an equivalence ratio of no greater than about 1.0 so that maximum heat is transferred to the first of the two stages to stabilize combustion therein, and the fuel radicals are sufficiently oxidized by the second oxygen-containing gas to inhibit formation of prompt NO.sub.x.

Abstract: Lightweight, long-life combustion liner comprises a two-dimensional array of thin walled metal liner cells welded to a liner support structure and having thermal expansion gaps between side wall cell portions. Cooling air orfices are formed in the cells for producing a cooling air film at upper portions thereof. The resulting liner has no moving parts such as slip joints, which can fail under vibrational stresses, and thus maintenance costs are reduced.

Abstract: In premixing-type combustion of liquid fuel in a burner without a premixing section, a conical column (5) of liquid fuel is formed in the interior (14) of the burner, which column widens in the direction of flow and is surrounded by a rotating stream (15) of combustion air which flows tangentially into the burner. Ignition of the mixture takes place at the burner outlet, a backflow zone (6) forming in the region of the burner outlet. The burner itself consists of at least two hollow part-cone bodies (1, 2) which are superposed on one another and have a cone angle increasing in the direction of flow. The part-cone bodies (1, 2) are mutually offset, so that tangential air inlet slots (19, 20) are formed. A nozzle (3) placed at the burner head ensures injection of the liquid fuel (12) into the interior (14) of the burner.

Abstract: A turbo burner assembly provides for dispersion of liquid fuel into a flame region adjacent a burner head of the assembly by using compressed air to force a fine spray through apertures in an atomizing assembly. The dispersed fuel is supplied at a variable rate that corresponds to the combustion settings of the burner over the entire operating range of the burner. The dispersed fuel becomes entrained into a low quantity flow of high velocity turbo air. The quantity or rate of flow of the high velocity turbo air corresponds to the combustion air required for the correct air to fuel mixture at the lowest fuel flow rate. At increasing fuel flow rates for increased combustion settings a second low velocity stream of turbo air is introduced at a variable volume flow rate to provide together with the first stream of turbo air a correct combustion mixture with the introduced fuel over the entire range of combustion settings of the burner assembly. A gaseous fuel can be substituted for the liquid fuel.

Abstract: A burner with a conical shape opening in the flow direction is composed of two partial-conical bodies, which are positioned one upon the other and whose centerlines in the longitudinal direction extend offset relative to one another. Because of this offset, a tangential inlet slot to an internal space of the burner is formed in each case over the length of the burner. The fuel supply takes place centrally via a nozzle and tangentially in the region of the inlet slots via, in each case, a fuel line, which is provided with fuel openings which there undertake the injection of the fuel. A duct is formed above each inlet slot and this is equipped with an injector. A further fuel is introduced through this injector. The air/fuel mixture with fuel from the injector and/or fuel from the fuel line flows generally as an air/fuel mixture through the tangential inlet slots into the internal space of the burner. If needed, further mixing with the fuel from the nozzle takes place there.

Abstract: A line burner assembly is provided for burning a mixture including at least a gaseous fuel and process air to produce a flame. The assembly includes a mixing region which contains an air/fuel mixture. Gaseous fuel and process air are supplied to the mixing region. Combustion air containing oxygen may also be supplied manually or automatically to the mixing region to compensate for a decline in the oxygen level in the process air below a predetermined minimum level to enhance the combustibility of the air/fuel mixture in the mixing region.

Abstract: In a premixing burner, which consists of two hollow partial conical bodies (1, 2), which are positioned on one another and have a cone inclination increasing in the direction of flow, the fuel feed takes place via central fuel nozzle (3) and/or via a plurality of fuel nozzles (17), which are placed along the inflow of the combustion air (15) into the interior (14) of the burner. The combustion air (15) itself is a mixture of fresh air and exhaust gas. The fresh air is led up via a first flow funnel (23a, 23b ) and exhaust gas recirculation takes place via a second flow funnel (22a, 22b). These two gases mix with one another before flowing tangentially into the interior (14). An optimum, homogenous fuel concentration over the cross-section arises in the region of the return flow zone (6).

Abstract: A combustion heating device for use for example with oil processing equipment defines a combustion chamber within which combustion wholly takes place. The combustion chamber consists solely of a sleeve and end plate defining a vertical cylinder and a layer of ceramic fiber insulating material inside the sleeve defining the inner surface of the combustion chamber. A burner is mounted in a bottom plate of the device which can be pivoted to an open position exposing the burner for service. Air channels are defined on the outside of the sleeve so that incoming combustion air passes over the sleeve and acts as a heat recovery for any heat escaping from the insulating material. An outlet duct at an upper end of the combustion chamber at right angles to the combustion chamber extracts the combustion gases so that all heat exchange takes place outside of the combustion chamber. The device improves heating efficiency and reduces corrosion of heat transfer surfaces.

Abstract: In a combustion installation, a mixture of fresh air (D) and exhaust gas (C) is fed to the burner (A) via a mixing/conveying device (EFG). There is provided in the combustion installation a heat exchanger (M), which undertakes the thermal conditioning of the mixture (H) before the latter is fed into the burner (A).

Abstract: A combustion chamber and burner apparatus designed to accept multiple types f liquid fuel for use in ovens and griddles including an outer chamber and an inner chamber. The outer chamber includes an air input conduit at one end and a fluid delivery conduit at the opposite end. The inner chamber is disposed in spaced relationship within the outer chamber, and the air carried by the input conduit is caused to pass over the inner chamber for heat exchange purposes. The products of combustion produced in the inner chamber are mixed with the air passing over the inner chamber in the vicinity of the fluid delivery conduit at the opposite end of the outer chamber. The inner chamber includes a burner assembly including fuel delivery means, a flame retention head and means for moving a quantity of air past the head to shape the burner flame into a tear-drop shape so as to control the flame intensity and thereby the temperature of the substance delivered to the griddle.

Abstract: In order to provide an expansive central recirculating gas zone (40) in a combustor (10), and in a manner wherein the combustion chamber (20) is of compact volume, a stored energy combustor (10) comprises a vessel (12) having narrow, spaced-apart inlet and outlet ends (14, 16) interconnected by a wall (18) defining a relatively wise combustion chamber (20). The combustion chamber (20) is generally annular and a wall (18) defining the combustion chamber (20) includes an upstream wall region (18a) and a downstream wall region (18c) interconnected by a generally annular side wall region (18b). The inlet end (14) and outlet end (16) are generally tubular extensions of the vessel (12) leading to and from the combustion chamber (20) and oxidant is swirled in the tubular extension (14) leading to the combustion chamber (20) and directed in a swirling annulus into the combustion chamber (20) outwardly of a fuel injector (28).

Abstract: Burner assembly for location within an air supply housing for heater the burner assembly having opposite side walls, upper and lower tiered baffles, each having connected thereon an air balancing baffle, the air balancing baffles and tiered baffles forming a combustion chamber therebetween, a gas manifold arranged approximately at the intake end of the burner assembly, with an associated shroud for directing air around the gas manifold, and for selectively diverting and directing air through the air balancing baffles, and into the combustion chamber. A diverter is arranged for directing incoming air, and deflectors are provided at the upper and lower front of the shrouds to direct the passage of air into the path of the combustion gases. Slots are provided within the brackets holding the front of the shrouds to reduced heat generation, and the arrangement of various slots provided within the tiered baffles provided fo reducing hot spots.

Abstract: Furnace gas is aspirated through furnace gas conduits (44) to the low pressure throats (42) of the Venturi conduits (41) that move high oxygen content gas to the combustion chamber (28) of the aspirating burner (20). Fuel is injected through fuel conduit (46) to the combustion chamber (28) to mix with the gases and form the flame in the combustion chamber which is emitted at high velocity from the burner into the furnace.

Abstract: Serving drying and gas cleaning processes, and thus also the intermediate heating of gas or flue gas, is a line burner where the fuel gas is fed through a fuel gas pipe and a fuel gas feed to fuel gas manifolds that extends lengthwise in a burner housing and in which fuel gas ports are provided. The necessary primary combustion air flow proceeds through an air manifold, after passing a diffuser plate and an orifice plate into a mixing zone adjacent to the fuel gas ports. Parallel with it, combustion air is fed past the fuel gas manifolds through additional combustion air channels, generating secondary flows of combustion air. Upon flowing around the fuel gas manifolds, these secondary flows are fed to the flame, effecting a dual-stage combustion. Extension plates support angle irons hich lie in spaced relation to the fuel gas manifolds to form a pair of combustion air channels for conducting a portion of the combustion air around the fuel gas manifolds to a downstream location.

Abstract: A burner head for a forced-air gas burner having a combustible gas distributor and a combustion air distributor, having radially disposed combustible gas nozzles and axially extending combustion air flow openings, in which the flame root is formed in the vicinity of the nozzles and flow openings, with ribs protruding radially into the flame region downstream of the flame root. A flame tube is provided coaxially with the burner tube, and an annular gap is provided for exhaust gas recirculation between the burner tube and the flame tube.

Abstract: An apparatus and method for ultra-low pollutant emission combustion of fossil fuel wherein an elongated cyclonic primary combustion chamber has a cross-sectional area about 4 to about 30 percent that of an elongated cyclonic secondary combustion chamber and a volume about 1 to about 20 percent the combined primary and secondary combustion chamber volume. A first fuel portion of about 1 percent to about 20 percent of the total fuel and primary combustion air in an amount selected from about 40 to about 90 percent and about 140 percent to about 230 percent of the stoichiometric requirement for complete combustion of the first fuel portion is introduced into the primary combustion chamber. A second fuel portion of about 80 to about 99 percent of the total fuel is introduced into the secondary combustion chamber with secondary combustion air in an amount of about 150 percent to about 260 percent of the stoichiometric requirement for complete combustion of the fuel.

Abstract: In order to avoid carbon buildup and to assist fuel atomization, a fuel injection system (40) includes a fuel injector (42) associated with the upstream portion (44) of a combustor (10). The fuel injector (42) has a fuel flow passage (46) in communication with a source of fuel (14) and terminating in the upstream portion (44) of the combustor (10). The fuel injection system (40) also includes a primary oxidant delivery tube (20) associated with the upstream portion (44) of the combustor (10). The primary oxidant delivery tube (20) defines a primary oxidant flow passage (48) in communication with a source of oxidant (12) and terminating in the upstream portion (44) of the combustor (10). The fuel injection system (40) further includes a secondary oxidant delivery tube (50) associated with the upstream portion (44) of the conbustor (10).

Abstract: A burner for directly flaming steel making materials to accomplish reduction without oxidation, wherein the burner comprises a plurality of combusion air outlets spaced circumferentially of the inner wall of a tubular burner tile, and fuel gas outlets disposed centrally of the burner tile, and wherein the combustion air outlets and fuel gas outlets are formed and disposed with specified jetting angles and distances to produce burning without oxidation.

Abstract: In a burner assembly for location within an air supply housing for a heater and disposed for inducing the movement of air through a blower and into and around a burner assembly during heater operation to create a supply of heated air for a space to be warmed, the burner assembly being of the type having opposite side walls, and upper and lower tiered baffles, each having connected thereon an air balancing baffle, forming cavities therebetween, with the combination of the air balancing baffles and tiered burner baffles forming a combustion chamber therebetween for reception and combustion of gas delivered from a gas manifold arranged approximately at the intake end of the burner assembly, with a shroud arranged above and below the upper and lower tier baffles for directing air into an intake at the back of the gas manifold, and for selectively diverting and directing air through the air balancing baffles, and through the burner baffles, into the combustion chamber.

Abstract: A burner for directly flaming steel making materials to accomplish reduction without oxidation, wherein the burner comprises a plurality of combustion air outlets spaced circumferentially of the inner wall of a tubular burner tile, and fuel gas outlets disposed centrally of the burner tile, and wherein the combustion air outlets and fuel gas outlets are formed and disposed with specified jetting angles and distances to produce buring without oxidation.

Abstract: A combustion apparatus and method are provided which can achieve highly effective and complete combustion of combustible gases therein. In accordance with the invention, a stream of oxidant gas is directed along and in contact with the exterior surface of a hollow member having inlets communicating with the interior thereof. The oxidant gas is then directed through the inlets into the interior of the hollow member. Oxidant gas swirl vanes are provided within the hollow member to impart swirling motion to the oxidant gas. A nozzle extends into the hollow member and also contains swirl vanes which impart a swirling motion to at least one combustible gas which is passed through the nozzle. Swirling combustible gas exiting the nozzle outlet mixes with the swirling stream of oxidant gas to produce a combustible mixture. The combustible gas in such mixture is combusted and combustion products are discharged through an outlet of the hollow member.

Abstract: A nozzle mix, open power burner includes an air housing for receiving pressurized air from a blower. A flame retention plate including a plurality of openings therein is adapted for placement at the outlet of the air housing, so that air supplied to the housing is outletted therefrom through the flame retention plate openings. A gas tube extends through the air housing and includes a gas discharge outlet downstream of the flame retention plate. Gas is discharged from the gas outlet in a direction radially outwardly relative to the longitudinal axis of the gas tube, so that gas is discharged into the flow path of air passing through the flame retention plate. A hot surface igniter is provided downstream of the flame retention plate for igniting the mixed gas and air.

Abstract: A burner for directly flaming steel making materials to accomplish reduction without oxidation, wherein the burner comprises a plurality of combustion air outlets spaced circumferentially of the inner wall of a tubular burner tile, and fuel gas outlets disposed centrally of the burner tile, and wherein the combustion air outlets and fuel gas outlets are formed and disposed with specified jetting angles and distances to produce burning without oxidation.

Abstract: A burner for directly flaming steel making materials to accomplish reduction without oxidation, wherein the burner comprises a plurality of combustion air outlets spaced circumferentially of the inner wall of a tubular burner tile, and fuel gas outlets disposed centrally of the burner tile, and wherein the combustion air outlets and fuel gas outlets are formed and disposed with specified jetting angles and distances to produce burning without oxidation.

Abstract: A burner for directly flaming steel making materials to accomplish reduction without oxidation, wherein the burner comprises a plurality of combustion air outlets spaced circumferentially of the inner wall of a tubular burner tile, and fuel gas outlets disposed centrally of the burner tile, and wherein the combustion air outlets and fuel gas outlets are formed and disposed with specified jetting angles and distances to produce burning without oxidation.

Abstract: A burner for directly flaming steel making materials to accomplish reduction without oxidation, wherein the burner comprises a plurality of combustion air outlets spaced circumferentially of the inner wall of a tubular burner tile, and fuel gas outlets disposed centrally of the burner tile, and wherein the combustion air outlets and fuel gas outlets are formed and disposed with specified jetting angles and distances to produce burning without oxidation.