Mixer And Flame Holder Patents (Class 431/354)
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Publication number: 20130213385Abstract: A deep fryer apparatus including a gas burner for heating cooking oil. The burner includes a venturi inlet for receiving fuel and combustion air that communicates with a main chamber having an expanding cross-section. A balancing plate is disposed in a flow path of the fuel air mixture that is located intermediate the inlet and the outlet. The balancing plate defines a region of reduced cross-section in the flow path. A flame cap located at the outlet defines at least one secondary chamber between itself and the balancing plate that defines a flow path cross-section that is larger than the cross-section of the flow path at the balancing plate. The balancing plate is preferably tapered to compensate for variations in the length of the flow path due to an angled orientation between the burner inlet and the outlet.Type: ApplicationFiled: July 30, 2008Publication date: August 22, 2013Inventors: Michael J. O'Donnell, Richard D. Cook
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Patent number: 8512035Abstract: A mixing device (10) for a gas burner, with a housing (11) having a combustion air inlet (13), a gas inlet (14) and an outlet (15) for the mixture of gas and combustion air, and with a Venturi device (12) which is positioned in the housing, wherein the Venturi device is contoured to form a contraction section (19), a mixing section (20) and a diffuser section (21). A guide device (22) for combustion air, which divides combustion air which enters the mixing device via the combustion air inlet (13) into a primary flow and a secondary flow, may be positioned inside the Venturi device, wherein the combustion air of the primary flow, issuing from the combustion air inlet, can be fed to the mixing section (20) via the contraction section (19), and wherein the combustion air of the secondary flow, issuing from the combustion air inlet, can be mixed downstream of the mixing section (20) in the region of the diffuser section (21) with the mixture of the gas and the combustion air of the primary flow.Type: GrantFiled: March 4, 2011Date of Patent: August 20, 2013Assignee: Honeywell Technologies SarlInventor: Willem Super
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Patent number: 8506290Abstract: A heating apparatus can have a sealed combustion chamber. A burner and an air shutter can be within the sealed combustion chamber. An air shutter control can be outside of the sealed combustion chamber. The air shutter control can provide fine tuning adjustment of the air shutter.Type: GrantFiled: June 9, 2010Date of Patent: August 13, 2013Inventor: David Deng
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Patent number: 8500440Abstract: A burner for a melter is provided which includes a nozzle, a fuel stream moving through the nozzle, and an oxidant stream including an initial elliptical cross section and being external to the nozzle and surrounding the fuel stream for providing a combustion stream having a cross section 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. A method for producing a flat flame is also provided.Type: GrantFiled: March 10, 2009Date of Patent: August 6, 2013Assignee: Linde, Inc.Inventor: Andrew P. Richardson
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Publication number: 20130189632Abstract: The present application provides a fuel nozzle for mixing a flow of fuel and a flow of air. The fuel nozzle may include a downstream face, a number of fuel passages positioned about the downstream face for the flow of fuel, and a nozzle collar position about the downstream face. The nozzle collar may include a number of air vanes for the flow of air and one or more purge holes therethrough.Type: ApplicationFiled: January 23, 2012Publication date: July 25, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Arvind Venugopal Menon, Ilya Aleksandrovich Slobodyanskiy, Abinash Baruah
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Patent number: 8490398Abstract: The disclosure relates to a burner for a single combustion chamber or first combustion chamber of a gas turbine, with an injection device for the introduction of at least one gaseous and/or liquid fuel into the burner, wherein the injection device has at least one body which is arranged in the burner with at least one nozzle for introducing the at least one fuel into the burner, wherein the at least one body is located in a first section of the burner with a first cross-sectional area at a leading edge of the at least one body with reference to a main flow direction prevailing in the burner, wherein downstream of said body a mixing zone is located with a second cross-sectional area, and at and/or downstream of said body the cross-sectional area is reduced, such that the first cross-sectional area is larger than the second cross-sectional area.Type: GrantFiled: May 7, 2012Date of Patent: July 23, 2013Assignee: Alstom Technology Ltd.Inventors: Madhavan Poyyapakkam, Anton Winkler, Khawar Syed, Andrea Ciani
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Publication number: 20130177858Abstract: A combustor includes a plurality of tubes arranged in a tube bundle and supported by at least one plate that extends radially within the combustor, wherein each tube includes an upstream end axially separated from a downstream end and provides fluid communication through the tube bundle. A flow conditioner extends upstream from the upstream end of one or more of the plurality of tubes, and a radial passage extends through the flow conditioner. A method for distributing fuel in a combustor including flowing a working fluid through a flow conditioner that extends from a tube that is configured in a tube bundle comprising a plurality of tubes and that is supported by at least one plate. The flow conditioner includes at least one radial passage to impart radial swirl to the working fluid. Flowing a fuel through an annular insert that is at least partially surrounded by the flow conditioner.Type: ApplicationFiled: January 6, 2012Publication date: July 11, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Gregory Allen Boardman, Geoffrey David Myers, Hasan Karim, Michael John Hughes, Azardokht Hajiloo
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Patent number: 8479720Abstract: A new and useful heating device is provided, that is particularly characterized by the efficient way it provides combustion of a carbon based fuel (e.g. wood). A vertically oriented combustion chamber is configured with a relatively narrow, lower portion, a relatively wider upper portion, and a vertically oriented wall structure defining the combustion chamber.Type: GrantFiled: October 16, 2008Date of Patent: July 9, 2013Inventor: Oscar Enrique Figueroa
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Patent number: 8479721Abstract: In one aspect the invention discloses an improved gas burner with a high turn-down ratio. The improved burner includes first and second gas flow passages, a flame front locator in one of the passages of the burner cap. Fuel gas is injected into an end of one of the passages and is ignited to establish a flame at the flame front locator. Secondary combustion air is provided through the other of the passages which on a high setting enables secondary combustion and on a low setting may mix with the hot gases and cool them resulting in a lower temperature at the cooking vessel.Type: GrantFiled: July 13, 2005Date of Patent: July 9, 2013Assignee: Fisher & Paykel Appliances LimitedInventors: Lindsay George Graham, Simon Denzil Brown
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Publication number: 20130171576Abstract: There is provided a flame hole formation member 7 which is inserted and mounted from above in a third plate member 6 used to form a central rich-side flame hole row 33. As the flame hole formation member 7, a pair of flame hole formation parts 71, 71 each used to form a respective lean-side flame hole row 34 are connected by bridge formation parts 72, 72 at their upper end positions, with a predetermined distance held between the flame hole formation parts 71, 71. The bridge formation part 72, 72 is fitted from above into an engagement groove 332 formed in the upper end edge of the third plate member 6, whereby the pair of the flame hole formation parts 71, 71 are assembled so as to sit astride the upper end edge of the third plate member 6.Type: ApplicationFiled: December 26, 2012Publication date: July 4, 2013Applicant: NORITZ CORPORATIONInventor: Noritz Corporation
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Publication number: 20130168470Abstract: A burner tip, and method of manufacture, has a support layer with an external surface exposed to combustion reactions and an unexposed internal surface defining at least one a passage therethrough to deliver fuel and combustion gasses, and a thermal protective layer disposed on at least part of the unexposed surface of the burner tip support layer. The thermal protective layer 22 has from about 5% to about 40% of an inorganic adhesive, from about 45% to about 92% of a filler, and from about 1% to about 20% of one or more emissivity agents.Type: ApplicationFiled: June 13, 2012Publication date: July 4, 2013Inventors: John W. Olver, Jason Andrew Simmons
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Publication number: 20130164699Abstract: Gas burner for domestic use, of the type comprising at least one Venturi effect mixer in fluid connection with at least one combustion mixture distribution chamber and with at least one flame spreader associated with said distribution chamber, in addition to first means for preventing flame propagation of the fluid flow splitting type. Advantageously, the above-mentioned first preventing means is arranged downstream of the Venturi effect mixer and upstream of the combustion mixture distribution chamber, separating said Venturi effect mixer from the distribution chamber.Type: ApplicationFiled: June 30, 2010Publication date: June 27, 2013Applicant: SABAF S.P.A.Inventor: Angelo Bettinzoli
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Patent number: 8468833Abstract: A burner arrangement includes a tubular mixing tube extending along an axis and configured to mix fuel and air, the mixing tube opening into a combustion chamber in a direction of flow; and a film air ring disposed in the mixing tube and arranged concentrically to the axis, the film air ring configured to prevent a backfiring of the fuel disposed in the mixing tube and to generate or reinforce an air film near the wall, wherein the film air ring has at least one annular gap concentric to the axis and configured to inject air.Type: GrantFiled: September 7, 2010Date of Patent: June 25, 2013Assignee: Alstom Technology LtdInventors: Richard Carroni, Marcel Rieker, Adnan Eroglu, Heinz Schaer
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Publication number: 20130157204Abstract: 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.Type: ApplicationFiled: December 20, 2012Publication date: June 20, 2013Applicant: ECLIPSE, INC.Inventor: Eclipse, Inc.
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Patent number: 8464703Abstract: A top burner and a cooker having the top burner are provided. A flame transfer slit for guiding the flame formed by the combustion of the mixed gas at an outer burner to an inner burner. A shielding member is provided to shield the flame transfer slit. Therefore, the object to be heated is uniformly heated and the flame transfer from the outer burner to the inner burner can be effectively realized.Type: GrantFiled: December 17, 2008Date of Patent: June 18, 2013Assignee: LG Electronics Inc.Inventors: Jung-Wan Ryu, Dae-Bong Yang, Jae-Hyuk Wie, Yong-Ki Jeong, Jae-Bum Lim, Jun-Ho Seok, Young-Soo Kim, Yang-Ho Kim, Dae-Rae Lee
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Publication number: 20130149654Abstract: The invention relates to a mixing device for premixing combustion air and gas, having a gas regulating device and a gas outlet and a nozzle, wherein a gas inlet is provided on the nozzle or on a bridging element disposed on the nozzle, and the gas path from the gas outlet to the gas inlet is sealed off by a gasket extending from the gas outlet to the gas inlet.Type: ApplicationFiled: June 22, 2011Publication date: June 13, 2013Applicant: EBM-PAPST LANDSHUT GMBHInventor: Rudolf Tungl
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Patent number: 8459985Abstract: A method for producing hot gas for operating a turbomachine fired with at least one combustion chamber includes premixing a fuel with a plurality of operating gases by introducing fuel into the plurality of operating gases in a mixing chamber disposed upstream of the combustion chamber using a burner arrangement, wherein the fuel includes at least one of a combustible gas and a H2-rich fuel; and introducing the premixed fuel into the combustion chamber.Type: GrantFiled: September 7, 2010Date of Patent: June 11, 2013Assignee: Alstom Technology LtdInventors: Richard Carroni, Bettina Paikert
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Patent number: 8454353Abstract: The invention relates to a method for evaluating the state of a fuel/air mixture and/or the combustion in a combustion chamber of an internal combustion engine, with sample signals of flame light signals, preferably the flame intensity (FI), with associated mixture states being saved to a database, with flame light signals, preferably the flame light intensity (FI), of the combustion in the combustion chamber being detected and thus being compared with the saved sample signals, and with conclusions being drawn on the state of the mixture in the combustion chamber in the case of coincidence between measured and saved signal patterns. In order to enable a simple and precise monitoring of the mixture state and the combustion it is provided that a pressure measurement is also performed in the cylinder simultaneously with the detection of the flame light signals.Type: GrantFiled: May 22, 2008Date of Patent: June 4, 2013Assignee: AVL List GmbHInventor: Ernst Winklhofer
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Patent number: 8454349Abstract: An improved burner and a method for combusting fuel used in furnaces such as those found in steam cracking. The burner includes a burner tube having a downstream end and an upstream end, a burner tip adjacent a first opening in the furnace, so that combustion of the fuel takes place at the burner tip, a lighting chamber adjacent to the first opening in the furnace, and a removable lighting chamber plug having a shape effective to substantially fill the lighting chamber when positioned within the lighting chamber.Type: GrantFiled: December 8, 2008Date of Patent: June 4, 2013Assignee: ExxonMobile Chemical Patents Inc.Inventors: George Stephens, David B. Spicer
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Patent number: 8454350Abstract: Disclosed is a combustor including a baffle plate having at least one through baffle hole and at least one fuel nozzle extending through the at least one through baffle hole. At least one diluent shroud is affixed to the at least one baffle plate and is configured to guide a diluent flow toward a mixing chamber of the at least one fuel nozzle. Further disclosed is a method for introducing a diluent flow into a mixing chamber of a fuel nozzle including urging the diluent flow from a plenum through a baffle plate gap between a baffle plate and an outer surface of the fuel nozzle. The diluent flow is directed via at least one diluent shroud extending from the baffle plate toward a plurality of air swirler holes extending through a fuel nozzle tip. The diluent flow is flowed through the plurality of air swirler holes into the mixing chamber.Type: GrantFiled: October 29, 2008Date of Patent: June 4, 2013Assignee: General Electric CompanyInventors: Jonathan Dwight Berry, John Joseph Lipinski, Girard Albert Simons, Abhijit Som
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Patent number: 8449288Abstract: A method for reducing NOx formation, including the steps of: providing a furnace with a plurality of secondary air injection ducts, asymmetrically positioned in an opposing manner; injecting fuel with primary air through a first stage prior to injection of a second air; injecting secondary air and aqueous urea solution through the plurality of reagent injection ducts; controlling the asymmetrical injection to produce a high velocity mass flow and a turbulence resulting in dispersion of the urea solution into the combustion space, thereby providing reduced NOx formation in the combustion process.Type: GrantFiled: June 19, 2006Date of Patent: May 28, 2013Assignee: Nalco Mobotec, Inc.Inventor: Brian S. Higgins
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Patent number: 8444411Abstract: An incinerator (20) for disposing of boil-off gas on an LNG carrier comprises a combustion section (40) wherein the boil-off gas admitted at (42) is burned in the presence of combustion air admitted at (44), producing a flame (46) and combustion products (C). Dilution air (A) is delivered into the combustion section (40) and mixed with the combustion products (C) to produce a diluted mixture (M). The combustion section (40) has an inner wall (48) and an outer wall (50) together defining a first passage (52) through which the dilution air (A) is passed before being mixed with the combustion products (C), whereby the dilution air A cools the combustion section (40). The dilution air A in the first passage (52) also provides a thermally insulting layer limiting radial heat transmission from the combustion section (40). A proportion (AP) of the dilution air is mixed directly with the combustion products (C).Type: GrantFiled: November 14, 2005Date of Patent: May 21, 2013Inventors: Simon Mark O'Connor, Richard James Price, Nigel Peter Webley, Mark Boss
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Publication number: 20130122436Abstract: A combustor includes a casing that encloses at least a portion of the combustor. A fuel conduit extends downstream from the casing and includes a tortuous path for fuel flow inside the fuel conduit. A method for supplying fuel to a combustor includes flowing a working fluid through tubes that extend axially through an end cap. The method further includes supplying a fuel through a fuel conduit into the end cap, supplying a diluent through a diluent conduit that extends axially inside the fuel conduit, and swirling the fuel flowing through the fuel conduit around the diluent flowing through the diluent conduit.Type: ApplicationFiled: November 11, 2011Publication date: May 16, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Lucas John Stoia, Patrick Benedict Melton
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Publication number: 20130122440Abstract: A burner apparatus for a furnace system and a method of burner operation. The burner has a series of fuel ejection structures which at least partially surround the burner wall for ejecting fuel into a combustion region projecting from the forward end of the burner wall. The ejection structures preferably eject fuel outside of the burner wall at alternating angles. Further, the burner apparatus preferably includes at least one additional series of fuel ejection structures which is spaced radially outward from the first series of ejection structures.Type: ApplicationFiled: November 9, 2012Publication date: May 16, 2013Applicant: ZEECO, INC.Inventor: Zeeco, Inc.
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Publication number: 20130122442Abstract: A fluid-cooled through-port oxy-fuel burner for converting an air-fuel regenerator port from air-fuel combustion to oxy-fuel combustion and an associated furnace and method. The oxy-fuel burner is suitable for installing through a regenerator port neck. The burner has an elbow-like bend to accommodate the geometry of the regenerator port neck. The burner has a cooling fluid jacket, a fuel conduit, a first oxidant conduit, and optionally an oxidant staging conduit.Type: ApplicationFiled: November 15, 2011Publication date: May 16, 2013Applicant: AIR PRODUCTS AND CHEMICALS, INC.Inventors: Mark Daniel D'AGOSTINI, Michael Edward HABEL, Matthew James WATSON
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Publication number: 20130104783Abstract: Embodiments of the present invention generally relate to burner assembly for use in an aggregate drying facility having requisite ultra-low nitrogen oxide emissions. In one embodiment, a burner assembly comprises a single burner apparatus having a centrifugal blower, a transition section, and a frustoconical stabilizer cone from which a flame may exit the burner assembly; a combustible fuel line having a first end connected to a fuel source, and a second end connected to a nozzle for delivering fuel to a combustion chamber within the single burner apparatus; a compressed air line having a first end connected to a compressed air source, and a second end connected to a nozzle for delivering compressed air to the combustion chamber; and a water line having a first end connected to a water source and a second end connected to a nozzle for delivering water to the combustion chamber.Type: ApplicationFiled: October 31, 2011Publication date: May 2, 2013Inventor: FREDERICK E. WALLENQUEST, JR.
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Publication number: 20130104520Abstract: A combustion device for hydrogen-rich gas is provided. Before entering a chamber, fuel and air are non-premixed for avoiding flushback. A vortex generator and a fuel sprayer are combined to mix fuel and air for enhancing burning effect. Vortex flame is generated with stabilizing aerodynamics of flow provided through vortex breakdown. A flameholder is formed downstream an injector to maintain stable combustion. Cooling air is introduced from a sheath to cool down a high-temperature gas, which leaves the combustion chamber and drives a turbine for turning a power generator. Thus, the present invention effectively mixes fuel and air, avoids flushback and prevents combustor damage.Type: ApplicationFiled: April 23, 2012Publication date: May 2, 2013Applicant: ATOMIC ENERGY COUNCIL-INSTITUTE OF NUCLEAR ENERGY RESEARCHInventors: Yau-Pin Chyou, Shenqyang (Steven) Shy, Chien-Chia Liu, Chih-Yang Wu
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Publication number: 20130101948Abstract: A flame hole member of a tubular burner has a front plate and a rear plate both of sheet metal make. The front plate has a first flame hole in the central portion of the front plate, and a plurality of second flame holes located around a periphery of the first flame hole, each of the second flame holes being of a slit shape in a width below a quenching distance. The rear plate has a first ventilation hole in the central portion of the rear plate, and a plurality of second ventilation holes of smaller diameter than the first ventilation hole, each of the second ventilation holes being located around a periphery of the first ventilation hole. At least one of the rear plate and the front plate is provided with a cylindrical section for introducing into the first flame hole.Type: ApplicationFiled: October 21, 2011Publication date: April 25, 2013Inventor: Tadayuki Hiraga
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Publication number: 20130101943Abstract: 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.Type: ApplicationFiled: October 20, 2011Publication date: April 25, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Jong Ho Uhm, Chunyang Wu, Jonathan Dwight Berry, Jason Thurman Stewart
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Publication number: 20130101947Abstract: A tubular burner has: a mixing tube inclusive of an inlet port, a venturi section, and a tapered tube section; and a flame hole member having a plurality of flame holes and being adapted to be fitted into a front end region of the mixing tube. A flame hole member has a front plate and a rear plate, both of sheet metal make. The front plate has a first flame hole in the central portion of the front plate, and a plurality of second flame holes located around a periphery of the first flame hole. The rear plate has a first ventilation hole in the center thereof so as to lie opposite to the first flame hole, and a plurality of second ventilation holes of smaller diameter than the first ventilation hole.Type: ApplicationFiled: October 21, 2011Publication date: April 25, 2013Inventor: Keisuke Mori
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Publication number: 20130092104Abstract: Fan housing for a fan for supplying a fuel/oxidizer mixture to a burner, comprising: a supply opening (22); a fluid supply space (26) debouching at the supply opening; a first supply means (28) for supplying a fluid-like fuel; a second supply means (52) for supplying an oxidizing fluid; wherein the fluid supply space comprises mixing means (50) for mixing the fluid-like fuel with the oxidizing fluid; and wherein the supply opening lies at an angle relative to the supply direction of the fluid in the fluid supply space.Type: ApplicationFiled: December 15, 2010Publication date: April 18, 2013Applicant: Intergas Heating Assets BVInventor: Peter Jan Cool
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Publication number: 20130095441Abstract: A totally aerated combustion burner having a combustion plate with a multiplicity of flame holes includes a distribution chamber, a mixing chamber, and an air supply chamber. The mixing chamber has a front surface with a plurality of nozzle holes disposed in parallel with, and at a lateral distance from, one another so that a fuel gas to be ejected from the nozzle holes and the primary air from the air supply chamber get mixed in the mixing chamber. A wall plate is disposed upright on a bottom surface of the mixing chamber in a manner to lie opposite to the front surface of the mixing chamber while leaving a ventilation clearance to the front surface. An air inlet is formed in such a portion at the bottom surface of the mixing chamber as to face the ventilation clearance.Type: ApplicationFiled: October 17, 2011Publication date: April 18, 2013Inventor: Kazuyuki Akagi
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Patent number: 8419420Abstract: A burner includes a first fuel feed and a first oxidant feed surrounding the first fuel feed in the shape of a ring. The burner includes a second fuel feed arranged about the first oxidant feed in the shape of a ring, and a second oxidant feed arranged about the second fuel feed in the shape of a ring. In addition, a plurality of oxygen lances are provided, which have a smaller radial distance from the burner centre than the second fuel feed.Type: GrantFiled: July 20, 2011Date of Patent: April 16, 2013Assignee: Linde AktiengesellschaftInventor: Thomas Niehoff
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Publication number: 20130089826Abstract: A tubular burner includes a mixing tube and a flame hole member having a plurality of flame holes. The flame hole member is made of a sheet metal plate and has: a circular disk part having the plurality of flame holes formed therein; and a fitting tubular member which is elongated backward from a periphery of the circular disk part and is adapted to be fitted into an inner circumference at the front end region of the mixing tube. A clearance-generating section is formed at a front of the fitting tubular member so as to generate an annular clearance between the clearance-generating section and the inner circumference at the front end region of the mixing tube. A plurality of flame retention holes are formed in the clearance-generating section at a circumferential distance from one another.Type: ApplicationFiled: October 11, 2011Publication date: April 11, 2013Inventor: Keisuke Mori
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Publication number: 20130087743Abstract: A burner includes a burner front having annular and central openings. The annular opening, for discharging a solid fuel, fluidly connects to a central passage way. The central opening, for discharging an oxygen containing gas, fluidly connects to an annular passage way for passage of oxygen positioned co-axial with the central passage way. The central passage way has a downstream part and a diameter that increases over a first length and subsequently decreases over a second length terminating at the burner front. Inside the downstream part a hollow member is positioned which is closed at one end and has an opening at or near the burner front, and has increasing and decreasing diameters aligned with the increasing and decreasing diameters of the central passage way forming an annular passage. The hollow member fluidly connects with the annular passage way for the oxygen containing gas via one or more connecting conduits.Type: ApplicationFiled: April 2, 2012Publication date: April 11, 2013Applicant: SHELL OIL COMPANYInventor: Johannes Hermanus Maria DISSELHORST
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Publication number: 20130084534Abstract: A combustor includes an end cap having upstream and downstream surfaces and a cap shield surrounding the upstream and downstream surfaces. First and second sets of premixer tubes extend from the upstream surface through the downstream surface. A first fuel conduit supplies fuel to the first set of premixer tubes. A casing circumferentially surrounds the cap shield to define an annular passage, and a second fuel conduit supplies fuel through the annular passage to the second set of premixer tubes. A method for supplying fuel to a combustor includes flowing a working fluid through first and second sets of premixer tubes, flowing a first fuel into the first set of premixer tubes, and flowing a second fuel through an annular passage surrounding the end cap and into the second set of premixer tubes.Type: ApplicationFiled: October 4, 2011Publication date: April 4, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Patrick Benedict Melton, Willy Steve Ziminsky, Gregory Allen Boardman
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Patent number: 8408897Abstract: The present invention provides a gas burner (10) including: a distributor means (50) having at least one distribution chamber to distribute an air gas mixture around said distributor (50), said burner (10) including a plurality of flame ports (70) through which said gas mixture can pass and be ignited; at least one injector (39) associated with said distributor (50), said at least one injector (39) being positioned to inject gas into said at least distribution chamber via a venture formed of a vertically directed passage and transition port (64) and at least one venturi extension extending away from said transition port (64).Type: GrantFiled: February 1, 2005Date of Patent: April 2, 2013Assignee: Aktiebolaget ElectroluxInventors: Carlo Antonio Rossi, Marco Rossi, Steven McIntyre, Keith Joseph Borg, George Brock-Nannestad
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Patent number: 8402768Abstract: The disclosure relates to a burner for a combustion chamber of a gas turbine, with an injection device for the introduction of at least one gaseous and/or liquid fuel into the burner, wherein the injection device has at least one body which is arranged in the burner with at least one nozzle for introducing the at least one fuel into the burner, the at least one body being configured as a streamlined body which has a streamlined cross-sectional profile and which extends with a longitudinal direction perpendicularly or at an inclination to a main flow direction prevailing in the burner. The at least one nozzle has its outlet orifice at or in a trailing edge of the streamlined body, and with reference to a central plane of the streamlined body, the trailing edge is provided with at least two lobes extending in opposite transverse directions.Type: GrantFiled: May 7, 2012Date of Patent: March 26, 2013Assignee: Alstom Technology Ltd.Inventors: Khawar Syed, Madhavan Poyyapakkam, Anton Winkler, Andre Theuer
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Publication number: 20130071794Abstract: A charge electrode configured to impart a time-varying majority charge on a flame and a shape electrode located outside the flame may be driven synchronously by a voltage source through time varying voltage(s). The flame may be flattened or compressed responsive to an electric field produced by the shape electrode acting on the charges imparted on the flame.Type: ApplicationFiled: October 23, 2012Publication date: March 21, 2013Applicant: CLEARSIGN COMBUSTION CORPORATIONInventors: JOSEPH COLANNINO, THOMAS S. HARTWICK, DAVID B. GOODSON, TRACY A. PREVO, CHRISTOPHER A. WIKLOF
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Publication number: 20130071796Abstract: 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.Type: ApplicationFiled: March 9, 2012Publication date: March 21, 2013Applicant: Air Products and Chemicals, Inc.Inventors: Jeffrey D. Cole, Leighta Maureen Johnson, Louis Walter Monroig, Aleksandar Georgi Slavejkov
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Publication number: 20130065188Abstract: A burner shield (100) for use in a horizontal flammability test chamber (102) is a planar member (120) that contains a stop (126) and a bend (128). A first area (120A) is defined as the area of the planar member (120) between the proximate end (124) and the stop (126), limited to the area of planar member 120 inside chamber 102 by stop 126. The first area (120A) of planar member (120) is inserted through an aperture on chamber (102) so that a substantial portion of first area (120A) covers burner (104) within chamber (102) so that the top surface of first area (120A) accumulates any byproduct (130) and/or prevents it from entering burner (104). The bend (128) is angled downward relative to the horizontal axis of the first area (120A) such that a distal end (122) is substantially aligned with the stop (126) and the distal end (122) abuts or rests against the outside portion of test chamber (102) to stabilize and support burner shield (100) during testing.Type: ApplicationFiled: September 14, 2011Publication date: March 14, 2013Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.Inventor: Kevin Lawrence Clark
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Patent number: 8393891Abstract: A combustion nozzle for use in a turbine. The combustion nozzle may include a center body and a cone extending from the center body. The cone may include a number of apertures positioned therein.Type: GrantFiled: September 18, 2006Date of Patent: March 12, 2013Assignee: General Electric CompanyInventors: Gregory Allen Boardman, Thomas Edward Johnson
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Patent number: 8393892Abstract: A burner for production of inorganic spheroidized particles according to the present invention includes a raw material powder supply path that supplies raw material powder by using oxygen or an oxygen-enriched air as a carrier gas; a powder diffusion plate having a plurality of fine holes, which is provided at a downstream end of the raw material powder supply path; a raw material diffusion chamber that is formed in a diffusion pipe provided at a downstream end of the powder diffusion plate; a fuel supply path disposed around the outer circumference of the raw material powder supply path; an oxygen supply path disposed around the outer circumference of the fuel supply path; and a combustion chamber disposed at a downstream side of the raw material diffusion chamber, which has an inside diameter increasing along the downstream direction and communicates with the fuel supply path and the oxygen supply path.Type: GrantFiled: May 30, 2007Date of Patent: March 12, 2013Assignee: Taiyo Nippon Sanso CorporationInventors: Yoshiyuki Hagihara, Kazuro Suzuki, Shinichi Miyake, Yasuyuki Yamamoto
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Publication number: 20130059257Abstract: A gas burner including a burner body having a lower housing, an inlet conduit and a combustion surface element attached to the lower housing. A diffuser/reflector positioned within the body encourages even distribution and mixing of a combustible gas/air mixture. The diffuser/reflector is preferably of a sheet metal construction and includes a plurality of stamped openings with each of these openings having an overhanging guide plate. The combustion surface element includes a plurality of integrally formed rigidizing ribs and is made from a high temperature steel alloy wire cloth. The inlet conduit is secured directly or indirectly to an access door/bulkhead that is used to close off an access opening formed in a water heater wall through which the burner is installed. In one construction, an air scoop shrouds the inlet conduit and at least partially defines a flow path of primary air, substantially isolated from the combustion chamber.Type: ApplicationFiled: September 28, 2012Publication date: March 7, 2013Inventors: Michael J. O'Donnell, Richard Cook
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Publication number: 20130059258Abstract: A board-plank premixing burner port arrangement which increases durability by preventing a large force from being applied to a burner-fixing structure despite accumulated thermal expansion caused by red heat on a burner surface. A burner body unit includes partially cut and stacked plates. The plates form a gas mixture passage and a burner port, are disposed such that cut parts of the neighboring plates intersect one another. The board-plank premixing burner port arrangement has increased combustion efficiency by reducing burner port deformation, and is easily manufactured at a low cost through a simplified installation structure of the burner port.Type: ApplicationFiled: April 22, 2011Publication date: March 7, 2013Applicant: KYUNGDONG NAVIEN CO., LTD.Inventor: Tae-Sik Min
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Publication number: 20130052597Abstract: A premix burner arrangement for safely oxygen-enriching a premix air-fuel combustion system is disclosed. In the disclosed burner arrangement, a first conduit is arranged and disposed to provide a first gas stream. The first gas stream is a self-reactive or self-flammable premixture comprising air and a combustible gas. At least one second conduit is arranged and disposed to provide a second gas stream circumferentially around the first gas stream. The second gas stream includes oxygen. The premix burner arrangement is configured to combust or react the first stream at a temperature at least 1000° F. greater than the temperature of the second stream. A method and combustion system including the premix burner arrangement are also disclosed.Type: ApplicationFiled: February 15, 2012Publication date: February 28, 2013Applicant: Air Products and Chemicals, Inc.Inventors: Jin Cao, Aleksandar Georgi Slavejkov, Shailesh Pradeep Gangoli, Jeffrey D. Cole
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Publication number: 20130047900Abstract: Flame stability of a burner that is operated with a mixture of oxygen and flue gas as the oxidant, is enhanced by including a second burner that combusts fuel with oxidant having a high O2 content.Type: ApplicationFiled: August 22, 2012Publication date: February 28, 2013Inventors: Lawrence Bool, Stefan E.F. Laux, Kelly Fangmei Tian
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Patent number: 8381714Abstract: A gas burner for a cooking appliance having a base portion and a side wall extending from the base portion. A cap is disposed on the side wall. The cap includes a substantially conical interior surface facing the base portion. The substantially conical interior surface is configured to substantially eliminate creation of turbulent flow eddies in a gaseous fuel mixture passing through the gas burner.Type: GrantFiled: November 6, 2009Date of Patent: February 26, 2013Assignee: General Electric CompanyInventors: Timothy Scott Shaffer, Mark Davis Johnson, Derek Lee Watkins
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Patent number: 8376733Abstract: A vented, gas-fired air heater especially designed for temporary heating applications includes an improved burner design providing effective air and gas mixing and efficient burning in the combustion chamber. Highly efficient heat exchanger including corrugated heat exchanger panels provides enhanced heat transfer characteristics.Type: GrantFiled: August 10, 2011Date of Patent: February 19, 2013Assignee: Haul-All Equipment Ltd.Inventors: Sergiu Desi-Seulean, David Wiebe-Neufeldt
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Publication number: 20130040255Abstract: A system includes a gasification fuel injector, which includes a first fuel conduit configured to inject a first fuel flow from a first fuel tip, a second fuel conduit configured to inject a second fuel flow from a second fuel tip, a first gas conduit configured to inject a first gas flow from a first gas tip, a second gas conduit configured to inject a second gas flow from a second gas tip, and a third gas conduit configured to inject a third gas flow from a third gas tip. At least one of the first fuel tip, the second fuel tip, the first gas tip, the second gas tip, or the third gas tip is recessed a distance away from an outlet of the gasification fuel injector. The first and second fuel conduits and the first, second, and third gas conduits are coaxial with one another.Type: ApplicationFiled: August 10, 2011Publication date: February 14, 2013Applicant: General Electric CompanyInventors: Shaoping Shi, Constantin Dinu, Shashishekara Sitharamarao Talya