Having Common Flame Chamber Or Shield Means Patents (Class 431/285)
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Patent number: 10823399Abstract: The present invention discloses a burner, a gas water heater and a processing method of fire row, wherein the burner comprising: a plurality of fire rows; an air channel is formed between at least two fire rows; the fire row has a burning substrate; the burning substrate is provided with main burning holes; the burning substrate is further provided with auxiliary burning holes downstream of the main burning holes; at least one the auxiliary burning hole is disposed on at least one side of the main burning hole in a length direction of the burning substrate; flame of the auxiliary burning hole intersect with flame of the main burning hole; and a frame for mounting the fire rows. The burner, the gas water heater and the processing method of the fire rows disclosed in the present invention can help to decrease flame height, facilitate manufacturing and reduce costs.Type: GrantFiled: February 9, 2018Date of Patent: November 3, 2020Assignee: A. O. SMITH CORPORATIONInventors: Yijun Xu, Maohu Cai, Ruihong Wei
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Patent number: 10690351Abstract: A home cooking appliance includes a cooktop surface and a gas pedestal burner on the cooktop surface. The gas pedestal burner includes a burner portion having a sidewall, a lower surface facing the cooktop surface, a plurality of burner ports in the sidewall, and a base portion under the burner portion. The base portion elevates the burner portion in a vertical direction above the cooktop surface and has a lower mounting surface disposed on the cooktop surface. An area of a footprint of the lower mounting surface of the base portion is less than an area of a footprint of the lower surface of the burner portion.Type: GrantFiled: May 19, 2016Date of Patent: June 23, 2020Assignee: BSH Home Appliances CorporationInventors: David Adams, Ben Braden, Russell Dorsten, Jonathan Grey, Donald Hendricks, Chris Hill, David Nowak, Timothy Russell, Graham Sadtler, Phil Springer
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Patent number: 10006636Abstract: A liquid fuel cartridge assembly for a gas turbine combustor comprising an elongated stem provided with a fuel injector tip at an aft end of said stem, said injector tip provided with a pilot fuel passage extending to a pilot fuel orifice; a plurality of air channels surrounding said pilot fuel passage and in communication with plural air holes; an annular main fuel passage surrounding said plurality of air channels and in communication with plural fuel exit holes; and a plurality of substantially radially oriented air supply holes in said stem upstream but proximate to a forward end of said tip in communication with said plurality of air channels.Type: GrantFiled: November 18, 2013Date of Patent: June 26, 2018Assignee: General Electric CompanyInventors: Leonid Yulievich Ginessin, Borys Borysovich Shershnyov
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Patent number: 9625149Abstract: Burner assemblies including panels (e.g., transparent panels) supported in a substantially parallel, closely-spaced relationship and gaskets and spacers sealing the space between the panels to form a perimeter seal and to define a plenum between the first and second panels with an inlet into the plenum and an outlet out of the plenum.Type: GrantFiled: February 14, 2012Date of Patent: April 18, 2017Assignee: HNI Technologies Inc.Inventors: David C. Lyons, Travis P. Betcher, Louis L. Mead
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Patent number: 9557061Abstract: An axial swirler, in particular for premixing of oxidizer and fuel in gas turbines, includes a series of swirl vanes with a streamline cross-section. Each swirl vane has a leading edge, a trailing edge, and a suction side and a pressure side extending each between the leading and trailing edges. The swirl vanes are arranged around a swirler axis, wherein the leading edges extend essentially in radial direction. Flow slots are formed between the suction side of each swirl vane and the pressure side of its nearest neighboring swirl vane. Furthermore, at least one swirl vane has a discharge flow angle between a tangent to its camber line at its trailing edge and the swirler axis that is monotonically increasing with increasing radial distance from the swirler axis. The invention also relates to a burner with such a swirler and a method of operating the burner.Type: GrantFiled: November 5, 2013Date of Patent: January 31, 2017Assignee: GENERAL ELECTRIC TECHNOLOGY GMBHInventors: Fernando Biagioli, Madhavan Narasimhan Poyyapakkam, Riccardo Cenni, Khawar Syed
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Patent number: 9303869Abstract: A pilot burner assembly for easy removal of a thermo-electric or other device is disclosed. In an illustrative embodiment, a pilot burner assembly may include a bracket and a resilient clip, which together, help maintain at least some of the pilot burner components in a desired configuration.Type: GrantFiled: June 15, 2012Date of Patent: April 5, 2016Assignee: Honeywell International Inc.Inventors: Donald J. Kasprzyk, Gregory Young, James Glenn Buezis, Willem VanderWerf, Timothy J. Smith
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Patent number: 9115888Abstract: A rich-lean combustion burner has a supply channel through which a lean-side mixture is supplied to lean-side flame holes; and a supply channel through which a rich-side mixture is supplied to rich-side flame holes. The supply channels are partitioned from each other. A third plate member including a pair of plate parts which are bent to form a V shape at its lower end edge as a fold line is employed to form a central rich-side burner part. A slit part is partitioned and formed between side edges of a pair of first plate members on both longitudinal sides for forming lean-side flame holes on width-wise sides of the central rich-side burner part. With the lower end part in front, the V-shaped third plate member s inserted into the slit part, thereby being interposed between the first plate members.Type: GrantFiled: May 30, 2012Date of Patent: August 25, 2015Assignee: NORITZ CORPORATIONInventors: Norihide Wada, Takashi Akiyama, Takeshi Wakada, Itsuo Nagai, Ryosuke Umakoshi
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Patent number: 9033702Abstract: The present invention relates to a gas burner in which a burner body and a side plate are assembled together without a welding process, to thereby simplify manufacturing procedures and reduce manufacturing costs. To accomplish this, the gas burner of the present invention includes a plurality of burner units (110), each of which has a burner body (111) with a main flame being formed at the top thereof, a side plate (112) which forms auxiliary flame holes (116) in the spaces between both side surfaces of the burner body (111) and the side plate (112), and a plurality of supports (113, 114) protruding from the side plate (112). Both ends of each of the burner units (110) are supported by first and second brackets (200a, 200b), respectively. The supports (113, 114) formed at the side plate (112) of the burner unit are brought into contact with and are supported by supports (123, 124) formed at a side plate (122) of an adjacent burner unit (120).Type: GrantFiled: July 21, 2010Date of Patent: May 19, 2015Assignee: Kyungdong Navien Co., Ltd.Inventors: Moung-Gee Min, Jae-Myung Joo
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Publication number: 20150101591Abstract: A gas fired infrared burner includes a burner body with a primary inlet for gaseous fuel and air, the burner body defining a primary premixing chamber for receiving gaseous fuel and air from the primary inlet. An emitter arrangement is configured and positioned such that gaseous fuel and air flows through the emitter arrangement to be combusted at an external surface of the emitter arrangement. The burner body includes an auxiliary inlet for gaseous fuel and air, and the burner body defines an auxiliary premixing chamber for receiving gaseous fuel and air from the auxiliary inlet. The emitter arrangement includes an auxiliary emitter segment that receives gaseous fuel and air from the auxiliary premixing chamber such that combustible gases emitted from the auxiliary emitter segment can be ignited even when no combustible gases are being emitted from portions of the emitter arrangement that are fed from the primary premixing chamber.Type: ApplicationFiled: September 3, 2014Publication date: April 16, 2015Inventor: Bektas C. Gulkanat
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Patent number: 8967997Abstract: A burner for a fire plume generator includes a liquid fuel nozzle directed along a first axis, a peripheral shield extending around the liquid fuel nozzle, the peripheral shield extending substantially along the first axis and defining an upper end and a lower end, and a pilot flame manifold located at or above the upper end of the peripheral shield, the pilot flame manifold defining a plurality of pilot flame outlets. A fire plume generator, a fire safety protection evaluation system, and a method of evaluating a fire safety protection device are also disclosed.Type: GrantFiled: February 13, 2012Date of Patent: March 3, 2015Assignee: Factory Mutual Insurance CompanyInventors: Hong-Zeng Yu, Stephen P. D'Aniello
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Publication number: 20140370449Abstract: A dual pilot light burner assembly suitable for working with a first type of gas or a second type of gas. According to one implementation the assembly includes a support, a regulating sleeve having a first nozzle, an air and gas mixing and intake chamber, and an injector having a second nozzle. The regulating sleeve is moveable with respect to the injector for placing the first supply nozzle in a first position with respect to the second supply nozzle for the delivery of the first type of gas to the pilot nozzle. The regulating sleeve moveable with respect to the injector for placing the first supply nozzle in a second position with respect to the second supply nozzle for the delivery of the second type of gas to the pilot nozzle. The regulating sleeve including structure accessible by an external tool and capable of receiving an end of the tool for use in moving the regulating sleeve between the first and second positions.Type: ApplicationFiled: June 12, 2014Publication date: December 18, 2014Inventor: Jose Joaquin ANTXIA URIBETXEBERRIA
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Publication number: 20140363775Abstract: A gas pipe ignitor for igniting a non-premixed air and fuel mixture includes a housing having an axially interior space along its length, a supply end segment, a flame end segment axially spaced from the supply end segment, and a flexible segment spaced between the supply end segment and the flame end segment. A fuel supply conduit extends axially within the housing, and the fuel supply conduit is operatively flexible with the flexible segment. An ignition conduit extends axially within the housing, and the ignition conduit is operatively flexible with the flexible segment. A detector conduit extends axially within the housing, and the detector conduit is operatively flexible with the flexible segment. An air supply conduit is operatively connected to the housing at the supply end segment and provides combustion air within the interior space.Type: ApplicationFiled: June 5, 2013Publication date: December 11, 2014Inventors: David C. SAUNDERS, James P. SUTTON, Rebecca Lynn TOBIASZ, Gerard CHASE
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Patent number: 8899972Abstract: A gas burner is provided with multiple fuel rings for a cooking appliance, including an inner flame ring with a plurality of inner flame ports and an outer flame ring with a plurality of outer flame ports. At least one partition wall is disposed between the inner flame ring and the outer flame ring to define an inner fuel plenum and an outer fuel plenum. A fuel port is provided to one of the inner fuel plenum and the outer fuel plenum for providing a combustible fuel-air mixture thereto. The fuel-air mixture is transferred between the inner fuel plenum and the outer fuel plenum via at least one transfer aperture.Type: GrantFiled: December 13, 2010Date of Patent: December 2, 2014Assignee: Electrolux Home Products, Inc.Inventor: Warren Fowler
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Patent number: 8899971Abstract: A dual fuel vent free gas heater. In one implementation the heater includes a gas burner adapted to receive one of a first type of gas or of a second type of gas with a first pilot burner intended to receive the first type of gas and a second pilot burner intended to receive the second type of gas. A first temperature sensor is located adjacent the first pilot burner and a second temperature sensor is located adjacent the second pilot burner. A normally closed thermal switch is coupled to the first temperature sensor and located in the electrical flow path between a voltage source and a gas control valve actuator, the thermal switch configured to open when the temperature detected by the first temperature sensor exceeds a predetermined temperature indicative that the second type of gas is being delivered to the first pilot burner.Type: GrantFiled: August 20, 2010Date of Patent: December 2, 2014Assignee: Coprecitec, S.L.Inventors: Ruben Mateos Martin, José Joaquin Antxia Uribetxebarria
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Patent number: 8887710Abstract: The present invention provides a cooking gas burner assembly including a distributor (30), a gas manifold (50) and a cup (40), the cup (40) being located between the gas manifold (50) and the distributor (30). The gas manifold is spaced from the cup. The invention provides a burner assembly having at least a cap (220) and a distributor (30) on which the cap (220) is mounted, the distributor (30) including an internal and an external crown of flame ports, and at least one cross lighting passage (37) there between. The cap (220) includes an aperture (222) there through, which is adapted to be positioned over the cross lighting passage (37) when the cap (220) and distributor (30) are assembled.Type: GrantFiled: October 27, 2005Date of Patent: November 18, 2014Assignee: Aktiebolaget ElectroluxInventors: Carlo Rossi, Marco Rossi
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Patent number: 8863735Abstract: A burner body for use in a gas burner assembly and/or a gas cooking appliance is disclosed. The burner body comprises a sidewall and a main gas conduit, the main gas conduit having an inlet and an outlet; a plurality of primary burner ports disposed within the sidewall so as to be in communication with the outlet of the main gas conduit; a simmer flame port disposed within the sidewall in a spaced relation with the primary burner ports for providing a reignition source therefore; a stability chamber disposed within the burner body for channeling fuel to the simmer flame port; and a divider disposed in the stability chamber to reduce susceptibility to flashback.Type: GrantFiled: March 7, 2012Date of Patent: October 21, 2014Assignee: General Electric CompanyInventor: Paul Bryan Cadima
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Patent number: 8794960Abstract: A low NOx burner for installation on a furnace wall has an elongated tube connected to a combustion air supply, the furnace side end of which mounts a combustion air spinner that is spaced from the furnace wall. A plurality of air ports extend through the wall into the combustion chamber. Downstream ends of the air ports are spaced from the furnace wall as well as from the spinner, and they are configured to bias the discharged air flow towards the spinner. A plurality of first fuel gas spuds with fuel gas discharge orifices arranged about the spinner and discharges fuel gas into the combustion chamber downstream of the spinner. A second fuel gas spud is disposed in pockets between adjacent pairs of air ports which are closed against the furnace wall so that no combustion air flows through the pockets. The third gas spuds are placed inside the air ports.Type: GrantFiled: April 30, 2008Date of Patent: August 5, 2014Assignee: John Zink Company, LLCInventors: Vladimir Lifshits, Stephen B. Londerville
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Patent number: 8757139Abstract: A dual fuel heating system can be used in a gas appliance. The system can have an air shutter to regulate an amount of air that can mix with the fuel for combustion. The air shutter can be configured to have different positions depending on the type of fuel to be used.Type: GrantFiled: June 9, 2010Date of Patent: June 24, 2014Inventor: David Deng
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Patent number: 8747108Abstract: The present invention relates to the field of burners, particularly in burners intended for household use, such as stoves.Type: GrantFiled: December 16, 2010Date of Patent: June 10, 2014Assignee: Mabe, S.A. de C.V.Inventors: Jose Arturo Lona Santoyo, Ernesto Arias Del Campo, Roberto Cabrera Botello
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Publication number: 20130330676Abstract: A superadiabatic burner has a flame holder formed from a porous medium, a fuel inlet coupled to the flame holder, a fuel outlet coupled to the flame holder, a preheater comprising an inlet and an outlet coupled to the fuel inlet, and a radiating rod coupled to the porous medium. The porous medium comprises a first porous section and a second porous section. Methods of using the burner allow preheated air or other mixtures to be provided to the fuel inlet as part of a fuel air mixture for the burner.Type: ApplicationFiled: June 12, 2013Publication date: December 12, 2013Applicant: Board of Regents of the Nevada System of Higher Education, on behalf of University of Nevada, RenoInventor: Chanwoo Park
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Publication number: 20130288188Abstract: Lighting apparatus suitable for use in a gas lantern lighting fixtures and containing a single piece body member with a horizontally oriented gas inlet, a vertically oriented gas outlet, and a fastener along with a valve; an orifice; and a burner tip connected to one another are disclosed. Lighting apparatus which are easy to assemble and capable of efficiently producing an aesthetically pleasing flame along with associated methods are described.Type: ApplicationFiled: April 1, 2013Publication date: October 31, 2013Inventor: Mark Johnson
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Publication number: 20130280664Abstract: A burner assembly for an oil or gas dehydration system is provided which allows for standard pilot access through the burner assembly. The burner assembly includes an airplate system having a crescent shaped shutter plate.Type: ApplicationFiled: March 18, 2013Publication date: October 24, 2013Applicant: PROFIRE ENERGY, INCInventor: MELVIN HAL PARKS
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Publication number: 20130233296Abstract: A burner body for use in a gas burner assembly and/or a gas cooking appliance is disclosed. The burner body comprises a sidewall and a main gas conduit, the main gas conduit having an inlet and an outlet; a plurality of primary burner ports disposed within the sidewall so as to be in communication with the outlet of the main gas conduit; a simmer flame port disposed within the sidewall in a spaced relation with the primary burner ports for providing a reignition source therefore; a stability chamber disposed within the burner body for channeling fuel to the simmer flame port; and a divider disposed in the stability chamber to reduce susceptibility to flashback.Type: ApplicationFiled: March 7, 2012Publication date: September 12, 2013Inventor: Paul Bryan CADIMA
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Patent number: 8517718Abstract: A dual fuel heating source can have a fuel selector valve for selecting between a first fuel and a second fuel different from the first. The dual fuel heating source may selectively have a regulator unit, and an outlet valve. The regulator unit can be configured to regulate the pressure of two different fuels. The outlet valve can be connected to the fuel selector valve such that selecting a fuel can determine the path fuel will flow through the outlet valve and also out of the heating source.Type: GrantFiled: June 9, 2010Date of Patent: August 27, 2013Inventor: David Deng
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Patent number: 8465276Abstract: Disclosed is a method for operating a burner for fluid fuels. According to said method, the fluid fuel is mixed with an oxidizer before the fluid fuel is burned. The inventive method is characterized in that a liquid fuel that is used as a fluid fuel is mixed with a gaseous or vaporous carrier flow before being mixed with the oxidizer while the carrier flow containing the liquid fuel is mixed with the oxidizer in order to mix the liquid fuel with the oxidizer.Type: GrantFiled: September 23, 2005Date of Patent: June 18, 2013Assignee: Siemens AktiengesellschaftInventor: Bernd Prade
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Patent number: 8408896Abstract: Disclosed herein is a method of controlling the air to fuel ratio in a burner containing a venturi assembly. The venturi includes an air inlet, a primary fuel inlet with a converging section, a throat portion downstream from the converging section, a diverging section downstream from the throat portion, an outlet, and a secondary gas inlet disposed downstream from the converging section and upstream from the outlet. The method comprises introducing fuel into the fuel inlet, receiving air through the air inlet by inspiration, and feeding a gas through the secondary gas inlet, the flow rate and content of the gas fed through the secondary gas inlet being selected to result in a desired air to fuel ratio through the outlet. A method of firing a heater, a burner, a furnace and firing control systems also are disclosed.Type: GrantFiled: July 25, 2007Date of Patent: April 2, 2013Assignee: Lummus Technology Inc.Inventors: Peter R Ponzi, Francesco Bertola, Robert J Gartside
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Patent number: 8408197Abstract: A burner apparatus includes a first tube having a first longitudinal bore and a second tube having a second longitudinal bore. The second tube is disposed within the first longitudinal bore such that an annular space is defined between the second tube and the first tube. The burner apparatus further includes a nozzle formed at a tip of the second tube. A plurality of side holes are formed in the nozzle. The side holes are slanted relative to a longitudinal axis of the nozzle and are in communication with the second longitudinal bore.Type: GrantFiled: October 13, 2008Date of Patent: April 2, 2013Assignee: Corning IncorporatedInventor: Curtis Richard Cowles
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Patent number: 8328885Abstract: A fuel reformer burner in which fuel gas and anode-off-gas (AOG) may be burned and backfire may be prevented during combustion of AOG includes a fuel supply portion, an anode-off-gas (AOG) supply portion; and a combustion air supply portion. The fuel supply portion and the AOG supply portion are arranged inside the combustion air supply portion, which is formed to extend beyond the discharge sides of the fuel supply portion and the AOG supply portion.Type: GrantFiled: October 29, 2009Date of Patent: December 11, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Hyun-chul Lee, Nobuya Kanamaru, Takami Higashi, Kang-hee Lee, Doo-hwan Lee, Shigeru Hayashi, Noriaki Watanabe
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Patent number: 8297969Abstract: Gas burner (1) comprising a main metal body (6), an inner lance (11) for combustible gas, at least two outer lances (10) for combustible gas, a single duct (8) for conveying pre-heated air, a regulation system for the combustible gas, a refractory unit (30), characterized in that said gas burner (1) comprises a series of nozzles (20) for the injection of the preheated air into the combustion chamber, and in that, by operating on the gas regulation system, it is possible to switch, with continuity, from a flame functioning mode of the burner to a flameless functioning mode, the latter characterized by low emissions of polluting agents.Type: GrantFiled: November 25, 2004Date of Patent: October 30, 2012Assignee: Techint Compagnia Tecnica Internazionale S.p.A.Inventors: Marco Daneri, Pierpaolo Pastorino, Vittorio Laviosa, Massimiliano Fantuzzi, Umberto Zanusso, Enrico Malfa
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Publication number: 20120196236Abstract: A heating system can include certain pressure sensitive features. These features can be configured to change from a first position to a second position based on a pressure of a fuel flowing into the feature. These features can include, fuel selector valves, pressure regulators, burner nozzles, and oxygen depletion sensor nozzles, among other features.Type: ApplicationFiled: January 16, 2012Publication date: August 2, 2012Inventor: David Deng
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Patent number: 8215117Abstract: A catalytic reactor for a gas turbine engine comprising an air inlet, a premixing zone, a reacting zone comprising a reactive portion and a nonreactive portion, a post reaction mixing zone, a first fuel injection system for introducing fuel into the reactive portion, and a second fuel injection system for introducing fuel into the nonreactive portion.Type: GrantFiled: October 15, 2007Date of Patent: July 10, 2012Assignee: United Technologies CorporationInventors: Meredith B. Colket, Alexander Chen
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Patent number: 8172568Abstract: A combustor, in which a flame holding region is formed at a location distant from a pilot burner to avoid burnout of the pilot burner and in which flame holding capability is increased to use a lean pre-mix gas for reducing NOx emission, is provided. The combustor includes a combustion liner having a cylindrical side wall that defines a combustion chamber; and a main burner positioned at a top portion of the combustion liner for injecting an annular pre-mix gas into the combustion chamber to form a reverse flow region at a downstream portion thereof, which region is oriented towards the top portion of the combustion chamber along a longitudinal axis. In this combustor, a pilot burner is arranged at the top portion for injecting a mixture of fuel and air only in a direction confronting the reverse flow region.Type: GrantFiled: February 4, 2010Date of Patent: May 8, 2012Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Hiroyuki Kashihara, Yasushi Yoshino, Kiyoshi Matsumoto, Takeshi Kimura, Junichi Kitajima, Atsushi Horikawa
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Patent number: 8137098Abstract: A multiple gas pilot burner assembly for a household heating appliance. The pilot burner includes an injector having a first conduit for receiving a flow of a first combustible fluid, a second conduit for receiving a flow of a second combustible fluid and a third conduit connected to and in fluid communication with the first and second conduits which is configured to receive the flow of the first combustible fluid from the first conduit or the flow of the second combustible fluid from the second conduit. A single nozzle at the outlet of the third conduit is provided for supplying a pilot flame. The assembly also includes a single flame igniter positioned to cause an ignition of the pilot flame at the nozzle and also a single thermocouple positioned to be heated by the pilot flame and to generate an electrical current when heated.Type: GrantFiled: May 12, 2009Date of Patent: March 20, 2012Assignee: Coprecitec, S.L.Inventors: José Joaquín Antxia Uribetxebarria, Ruben Mateos Martin
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Patent number: 8113825Abstract: A computer-controlled matrix of pixels that emit bursts of fire in a controlled manner to create moving images and text on a plane in front of the matrix. The unit houses a number of pixels in a grid array, with each pixel associated with a solenoid gas valve. The valves are supplied by a main gas bus and when actuated release gas to an individual pixel, where it flows out and over a constantly burning pilot light and combusts. The valves are connected through a main circuit box to a computer, and are controlled by software that allows the user to script and play complex graphical animations, musical compositions, scrolling text, as well as real-time graphical response to specific user inputs.Type: GrantFiled: February 5, 2008Date of Patent: February 14, 2012Inventor: Neal Ormond
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Patent number: 8113824Abstract: A large diameter mid-zone air separation cone is provided for decreasing NOx during burner operation by expanding the internal recirculation zone (IRZ) at the burner exit. The mid-zone air separation cone has a short cylindrical leading edge that fits in the outer air zone of a burner. The mid-zone air separation cone splits the outer air zone secondary air flow into two equal or unequal streams depending on the position of the air separation cone with respect to the outer air zone, and deflects a portion of the secondary air flow radially outward. Since the radial position of the air separation cone is farther from the burner centerline, the IRZ size is expanded and NOx emissions are minimized.Type: GrantFiled: June 1, 2006Date of Patent: February 14, 2012Inventors: Hamid Sarv, Albert D. LaRue, William J. Kahle, Alan N. Sayre, Daniel R. Rowley
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Patent number: 8065997Abstract: A heating cooking appliance is provided. The heating cooking appliance includes a case, a plate, a burner system, and a warm zone guide. The plate covers the top of the case. The burner system is provided below the plate and defines a heating region on the plate. The heating region heats food. A warm zone guide defines a warm zone region on the plate through exposing at least a portion of an undersurface of the plate to combustion gas generated from the burner system during exhausting of the combustion gas.Type: GrantFiled: December 10, 2007Date of Patent: November 29, 2011Assignee: LG Electronics Inc.Inventors: Dae Rae Lee, Jung Wan Ryu, Dae Bong Yang, Sang Min Lyu, Yong Ki Jeong, Young Soo Kim
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Patent number: 8021143Abstract: A gas fired furnace capable of operating with a 16:1 turndown ratio or greater. The furnace includes a plurality of burners (10) grouped into at least (14a) first and second (14b) groups, each group connected to a source of combustible gas through a control valve (30a, 30b, 30c). The control valve (30c) controlling at least one group of burners is of a modulating type having an output proportional to a control signal applied to the valve. The burners fire into associated heat exchange tubes (20a), each tube having an inlet (24) and an outlet. The tube outlets are connected to a collector chamber (44) that includes a baffle plate (60) that divides the collector into two sections, one of the sections communicating with the outlets of the tubes associated with the first group of burners, the other section communicating with the outlets of the heat exchanger tubes associated with the other group of burners.Type: GrantFiled: November 19, 2010Date of Patent: September 20, 2011Assignee: Beckett Gas, Inc.Inventor: Terrance C. Slaby
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Patent number: 7972133Abstract: A burner (23) for operating a heat generator includes a swirler (2) for a combustion air flow (9), and also devices (7, 12) for injecting at least one fuel into the combustion air flow (9), wherein a mixing path (3) is arranged downstream of the swirler (2), and wherein at least one nozzle (20) for feeding liquid pilot fuel is arranged in the region radially outside the discharge opening of the mixing path (3) of the burner. With such a burner, an operating mode which is as pollutant-free and overheating-free as possible can be enabled even at low load and under transient conditions if the at least one nozzle (20) is arranged in a burner front plate (32), wherein at least one discharge opening (15), through which the pilot fuel discharges into the combustion chamber (16), is provided in a front face (34) of the burner front plate (32), which is arranged essentially parallel to a combustion chamber rear wall (28).Type: GrantFiled: September 26, 2008Date of Patent: July 5, 2011Assignee: ALSTOM Technology Ltd.Inventors: Stefano Bernero, Peter Flohr, Gijsbertus Oomens, Martin Zajadatz
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Publication number: 20110143295Abstract: A gas burner is provided with multiple fuel rings for a cooking appliance, including an inner flame ring with a plurality of inner flame ports and an outer flame ring with a plurality of outer flame ports. At least one partition wall is disposed between the inner flame ring and the outer flame ring to define an inner fuel plenum and an outer fuel plenum. A fuel port is provided to one of the inner fuel plenum and the outer fuel plenum for providing a combustible fuel-air mixture thereto. The fuel-air mixture is transferred between the inner fuel plenum and the outer fuel plenum via at least one transfer aperture.Type: ApplicationFiled: December 13, 2010Publication date: June 16, 2011Applicant: ELECTROLUX HOME PRODUCTS, INC.Inventor: Warren Fowler
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Publication number: 20110107948Abstract: A biomass-mixed-firing pulverized coal fired boiler includes: a furnace for burning biomass fuel together with pulverized coal in a mixed state; a pulverized coal burner for supplying the pulverized coal into the furnace; a biomass burner for supplying the biomass fuel into the furnace; a biomass mill for milling the biomass fuel to be supplied to the biomass burner; a dry clinker processing unit provided below the furnace and including a clinker conveyor for carrying ashes discharged from the furnace at a furnace bottom; and a combustion-air supply unit for supplying combustion air toward the ashes discharged at the furnace bottom on the clinker conveyor, thereby to burn an unburned component of the biomass fuel contained in the ashes discharged at the furnace bottom on the clinker conveyor.Type: ApplicationFiled: May 13, 2009Publication date: May 12, 2011Inventors: Chikatoshi Kurata, Kazuhito Yoshikawa, Kazuyoshi Kaizuka, Koji Taniguchi, Takaharu Asakawa, Noriaki Ishikawa
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Patent number: 7901205Abstract: The invention concerns a gas burner (1) with multiple concentric flame rings, comprising: a central burner (2) with a central ring of flame orifices (5), and axial central gas injector (6) and convergent-divergent means (7) forming venturi; and an annular outer burner (3) coaxially surrounding the central burner and provided with at least one annular ring of flame orifices (9), gas injecting means (10) and convergent-divergent means (12) forming venturis; the gas injecting means (10) include several radial gas injectors (11) around the central injector (6); the convergent-divergent means (12) include several radial convergent-divergent conduits (13) forming tubular venturis coaxial respectively to the radial injectors (11) and emerging in the annular outer burner.Type: GrantFiled: July 27, 2006Date of Patent: March 8, 2011Assignee: Burner Systems International (BSI)Inventor: Christophe Trochou
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Publication number: 20100330519Abstract: A dual fuel heating source can have a dual entry valve unit with a main body at least partially defining a certain flow paths or channels therethrough. The dual entry valve can have first and second inlets and first and second outlets. The dual fuel heating source may also include a pressure regulator, an exit valve, a control valve and/or a manifold connected to the dual entry valve unit.Type: ApplicationFiled: June 9, 2010Publication date: December 30, 2010Inventor: David Deng
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Patent number: 7850448Abstract: A gas fired furnace capable of operating with a 16:1 turndown ratio or greater. The furnace includes a plurality of burners (10) grouped into at least (14a) first and second (14b) groups, each group connected to a source of combustible gas through a control valve (30a, 30b, 30c). The control valve (30c) controlling at least one group of burners is of a modulating type having an output proportional to a control signal applied to the valve. The burners fire into associated heat exchange tubes (20a), each tube having an inlet (24) and an outlet. The tube outlets are connected to a collector chamber (44) that includes a baffle plate (60) that divides the collector into two sections, one of the sections communicating with the outlets of the tubes associated with the first group of burners, the other section communicating with the outlets of the heat exchanger tubes associated with the other group of burners.Type: GrantFiled: March 3, 2004Date of Patent: December 14, 2010Assignee: Beckett Gas, Inc.Inventor: Terrance C. Slaby
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Patent number: 7841332Abstract: The present invention concerns a burner assembly that includes a burner body having a combustible gas chamber from which a combustible gas is distributed to a plurality of burner ports at which the combustible gas can be combusted and a stability chamber in gas-flow communication with the combustible gas chamber for maintaining the combustion of the combustible gas in the stability chamber whenever the combustion of the combustible gas at the plurality of burner ports is disturbed, whereby the combustion of the combustible gas at the plurality of the burner ports may be resumed upon the cessation of the disturbance. The burner assembly can also include a burner cap for closing off the top of the burner body so as to substantially preclude the escape of the combustible gas from the combustible gas chamber, the stability gas chamber and the burner ports at the top of the burner body.Type: GrantFiled: February 14, 2008Date of Patent: November 30, 2010Assignee: Electrolux Home Products, Inc.Inventors: John Pottenger, William A. Pryor, Piero Armanni, Paulo Serenellini
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Patent number: 7833011Abstract: A method of igniting and monitoring a high speed burner with which a fuel/oxygen-mixture exits at high velocity from a burner head, wherein the length of the flame is governed by the exit velocity of the mixture. The invention is characterized by placing an electrically conductive pipe in and concentrical with the burner channel for the fuel mixture, by causing a first end of the pipe to terminate close to the fuel mixture outlet of the burner head, by electrically isolating the pipe and by causing the detection of light of the group ultraviolet light, visible light and/or infrared light to be detected at the other end of the pipe, and by causing a spark to be generated between the first end of the pipe and the surrounding burner head by application of a voltage, in igniting the burner. A burner is also disclosed.Type: GrantFiled: October 11, 2005Date of Patent: November 16, 2010Assignee: Sandvik Intellectual Property ABInventors: Bo Jönsson, Kari Korhonen, Pauli Mäenpää, Thomas Lewin
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Patent number: 7780437Abstract: A premix burner includes a vortex generator (30) for combustion air stream (15), devices (17, 17a, 17b, 31-38, 41-48) to inject fuel into the combustion air stream (15), and tangential air ducts (19, 20). The combustion air (15) enters the cone cavity (14) of the vortex generator (30) via the air ducts. The injection of the fuel into the combustion air is done asymmetrically by injection devices (17, 17a, 17b, 31-38, 41-48). At least one of the injection devices (5) is arranged on a fuel lance (3) that extends into the vortex chamber.Type: GrantFiled: September 29, 2005Date of Patent: August 24, 2010Inventors: Stefano Bernero, Christian Joerg Matz, Martin Zajadatz, Christian Oliver Paschereit
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Patent number: 7775792Abstract: A combustion head comprising: a pipe, having a central axis of symmetry, suitable for conveying a flow of comburent air in a combustion chamber, and a plurality of gas tubes spaced out along a circumference. Each gas tube has a first portion, having an axis of symmetry parallel to the axis, and a second portion, placed in series with respect to the first portion. The second portion in inclined at an angle with respect to the axis.Type: GrantFiled: November 6, 2006Date of Patent: August 17, 2010Assignee: Riello S.p.A.Inventors: Francesco De Boni, Roberto Marchetti, Flavio Pastorato, Lorenzo De Fanti
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Patent number: 7753677Abstract: Burners in prior art exhibit combustion instabilities in certain ranges. The operating range of burners is restricted by said instabilities. In an inventive burner, the combustible has a concentration distribution, whereby the concentration of the combustible reduces in a radial direction from the interior to the exterior.Type: GrantFiled: August 20, 2003Date of Patent: July 13, 2010Assignee: Siemens AktiengesellschaftInventors: Peter Berenbrink, Malte Blomeyer, Werner Krebs, Bernd Prade, Holger Streb
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Publication number: 20100136496Abstract: A combustor, in which a flame holding region is formed at a location distant from a pilot burner to avoid burnout of the pilot burner and in which flame holding capability is increased to use a lean pre-mix gas for reducing NOx emission, is provided. The combustor includes a combustion liner having a cylindrical side wall that defines a combustion chamber; and a main burner positioned at a top portion of the combustion liner for injecting an annular pre-mix gas into the combustion chamber to form a reverse flow region at a downstream portion thereof, which region is oriented towards the top portion of the combustion chamber along a longitudinal axis. In this combustor, a pilot burner is arranged at the top portion for injecting a mixture of fuel and air only in a direction confronting the reverse flow region.Type: ApplicationFiled: February 4, 2010Publication date: June 3, 2010Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Hiroyuki KASHIHARA, Yasushi YOSHINO, Kiyoshi MATSUMOTO, Takeshi KIMURA, Junichi KITAJIMA, Atsushi HORIKAWA
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Patent number: 7717700Abstract: The present invention relates to a hybrid burner (1) for a combustor (7), in particular of a power plant, comprising a housing (2), in which a full oxidation catalyst (9) and a partial oxidation catalyst (10) are arranged. An inlet side of the housing (2) is connected to at least one oxidizer supply (3) and to at least one fuel supply (4, 5). An outlet side of the housing (2) is connected to a combustion chamber (7).Type: GrantFiled: February 28, 2005Date of Patent: May 18, 2010Assignee: Alstom Technology Ltd.Inventors: Richard Carroni, Timothy Griffin