Having Common Flame Chamber Or Shield Means Patents (Class 431/285)
  • Patent number: 10690351
    Abstract: 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: Grant
    Filed: May 19, 2016
    Date of Patent: June 23, 2020
    Assignee: BSH Home Appliances Corporation
    Inventors: David Adams, Ben Braden, Russell Dorsten, Jonathan Grey, Donald Hendricks, Chris Hill, David Nowak, Timothy Russell, Graham Sadtler, Phil Springer
  • Patent number: 10006636
    Abstract: 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: Grant
    Filed: November 18, 2013
    Date of Patent: June 26, 2018
    Assignee: General Electric Company
    Inventors: Leonid Yulievich Ginessin, Borys Borysovich Shershnyov
  • Patent number: 9625149
    Abstract: 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: Grant
    Filed: February 14, 2012
    Date of Patent: April 18, 2017
    Assignee: HNI Technologies Inc.
    Inventors: David C. Lyons, Travis P. Betcher, Louis L. Mead
  • Patent number: 9557061
    Abstract: 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: Grant
    Filed: November 5, 2013
    Date of Patent: January 31, 2017
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Fernando Biagioli, Madhavan Narasimhan Poyyapakkam, Riccardo Cenni, Khawar Syed
  • Patent number: 9303869
    Abstract: 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: Grant
    Filed: June 15, 2012
    Date of Patent: April 5, 2016
    Assignee: Honeywell International Inc.
    Inventors: Donald J. Kasprzyk, Gregory Young, James Glenn Buezis, Willem VanderWerf, Timothy J. Smith
  • Patent number: 9115888
    Abstract: 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: Grant
    Filed: May 30, 2012
    Date of Patent: August 25, 2015
    Assignee: NORITZ CORPORATION
    Inventors: Norihide Wada, Takashi Akiyama, Takeshi Wakada, Itsuo Nagai, Ryosuke Umakoshi
  • Patent number: 9033702
    Abstract: 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: Grant
    Filed: July 21, 2010
    Date of Patent: May 19, 2015
    Assignee: Kyungdong Navien Co., Ltd.
    Inventors: Moung-Gee Min, Jae-Myung Joo
  • Publication number: 20150101591
    Abstract: 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: Application
    Filed: September 3, 2014
    Publication date: April 16, 2015
    Inventor: Bektas C. Gulkanat
  • Patent number: 8967997
    Abstract: 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: Grant
    Filed: February 13, 2012
    Date of Patent: March 3, 2015
    Assignee: Factory Mutual Insurance Company
    Inventors: Hong-Zeng Yu, Stephen P. D'Aniello
  • Publication number: 20140370449
    Abstract: 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: Application
    Filed: June 12, 2014
    Publication date: December 18, 2014
    Inventor: Jose Joaquin ANTXIA URIBETXEBERRIA
  • Publication number: 20140363775
    Abstract: 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: Application
    Filed: June 5, 2013
    Publication date: December 11, 2014
    Inventors: David C. SAUNDERS, James P. SUTTON, Rebecca Lynn TOBIASZ, Gerard CHASE
  • Patent number: 8899971
    Abstract: 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: Grant
    Filed: August 20, 2010
    Date of Patent: December 2, 2014
    Assignee: Coprecitec, S.L.
    Inventors: Ruben Mateos Martin, José Joaquin Antxia Uribetxebarria
  • Patent number: 8899972
    Abstract: 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: Grant
    Filed: December 13, 2010
    Date of Patent: December 2, 2014
    Assignee: Electrolux Home Products, Inc.
    Inventor: Warren Fowler
  • Patent number: 8887710
    Abstract: 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: Grant
    Filed: October 27, 2005
    Date of Patent: November 18, 2014
    Assignee: Aktiebolaget Electrolux
    Inventors: Carlo Rossi, Marco Rossi
  • Patent number: 8863735
    Abstract: 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: Grant
    Filed: March 7, 2012
    Date of Patent: October 21, 2014
    Assignee: General Electric Company
    Inventor: Paul Bryan Cadima
  • Patent number: 8794960
    Abstract: 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: Grant
    Filed: April 30, 2008
    Date of Patent: August 5, 2014
    Assignee: John Zink Company, LLC
    Inventors: Vladimir Lifshits, Stephen B. Londerville
  • Patent number: 8757139
    Abstract: 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: Grant
    Filed: June 9, 2010
    Date of Patent: June 24, 2014
    Inventor: David Deng
  • Patent number: 8747108
    Abstract: The present invention relates to the field of burners, particularly in burners intended for household use, such as stoves.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: June 10, 2014
    Assignee: Mabe, S.A. de C.V.
    Inventors: Jose Arturo Lona Santoyo, Ernesto Arias Del Campo, Roberto Cabrera Botello
  • Publication number: 20130330676
    Abstract: 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: Application
    Filed: June 12, 2013
    Publication date: December 12, 2013
    Applicant: Board of Regents of the Nevada System of Higher Education, on behalf of University of Nevada, Reno
    Inventor: Chanwoo Park
  • Publication number: 20130288188
    Abstract: 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: Application
    Filed: April 1, 2013
    Publication date: October 31, 2013
    Inventor: Mark Johnson
  • Publication number: 20130280664
    Abstract: 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: Application
    Filed: March 18, 2013
    Publication date: October 24, 2013
    Applicant: PROFIRE ENERGY, INC
    Inventor: MELVIN HAL PARKS
  • Publication number: 20130233296
    Abstract: 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: Application
    Filed: March 7, 2012
    Publication date: September 12, 2013
    Inventor: Paul Bryan CADIMA
  • Patent number: 8517718
    Abstract: 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: Grant
    Filed: June 9, 2010
    Date of Patent: August 27, 2013
    Inventor: David Deng
  • Patent number: 8465276
    Abstract: 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: Grant
    Filed: September 23, 2005
    Date of Patent: June 18, 2013
    Assignee: Siemens Aktiengesellschaft
    Inventor: Bernd Prade
  • Patent number: 8408197
    Abstract: 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: Grant
    Filed: October 13, 2008
    Date of Patent: April 2, 2013
    Assignee: Corning Incorporated
    Inventor: Curtis Richard Cowles
  • Patent number: 8408896
    Abstract: 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: Grant
    Filed: July 25, 2007
    Date of Patent: April 2, 2013
    Assignee: Lummus Technology Inc.
    Inventors: Peter R Ponzi, Francesco Bertola, Robert J Gartside
  • Patent number: 8328885
    Abstract: 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: Grant
    Filed: October 29, 2009
    Date of Patent: December 11, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-chul Lee, Nobuya Kanamaru, Takami Higashi, Kang-hee Lee, Doo-hwan Lee, Shigeru Hayashi, Noriaki Watanabe
  • Patent number: 8297969
    Abstract: 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: Grant
    Filed: November 25, 2004
    Date of Patent: October 30, 2012
    Assignee: Techint Compagnia Tecnica Internazionale S.p.A.
    Inventors: Marco Daneri, Pierpaolo Pastorino, Vittorio Laviosa, Massimiliano Fantuzzi, Umberto Zanusso, Enrico Malfa
  • Publication number: 20120196236
    Abstract: 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: Application
    Filed: January 16, 2012
    Publication date: August 2, 2012
    Inventor: David Deng
  • Patent number: 8215117
    Abstract: 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: Grant
    Filed: October 15, 2007
    Date of Patent: July 10, 2012
    Assignee: United Technologies Corporation
    Inventors: Meredith B. Colket, Alexander Chen
  • Patent number: 8172568
    Abstract: 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: Grant
    Filed: February 4, 2010
    Date of Patent: May 8, 2012
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Hiroyuki Kashihara, Yasushi Yoshino, Kiyoshi Matsumoto, Takeshi Kimura, Junichi Kitajima, Atsushi Horikawa
  • Patent number: 8137098
    Abstract: 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: Grant
    Filed: May 12, 2009
    Date of Patent: March 20, 2012
    Assignee: Coprecitec, S.L.
    Inventors: José Joaquín Antxia Uribetxebarria, Ruben Mateos Martin
  • Patent number: 8113825
    Abstract: 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: Grant
    Filed: February 5, 2008
    Date of Patent: February 14, 2012
    Inventor: Neal Ormond
  • Patent number: 8113824
    Abstract: 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: Grant
    Filed: June 1, 2006
    Date of Patent: February 14, 2012
    Inventors: Hamid Sarv, Albert D. LaRue, William J. Kahle, Alan N. Sayre, Daniel R. Rowley
  • Patent number: 8065997
    Abstract: 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: Grant
    Filed: December 10, 2007
    Date of Patent: November 29, 2011
    Assignee: LG Electronics Inc.
    Inventors: Dae Rae Lee, Jung Wan Ryu, Dae Bong Yang, Sang Min Lyu, Yong Ki Jeong, Young Soo Kim
  • Patent number: 8021143
    Abstract: 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: Grant
    Filed: November 19, 2010
    Date of Patent: September 20, 2011
    Assignee: Beckett Gas, Inc.
    Inventor: Terrance C. Slaby
  • Patent number: 7972133
    Abstract: 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: Grant
    Filed: September 26, 2008
    Date of Patent: July 5, 2011
    Assignee: ALSTOM Technology Ltd.
    Inventors: Stefano Bernero, Peter Flohr, Gijsbertus Oomens, Martin Zajadatz
  • Publication number: 20110143295
    Abstract: 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: Application
    Filed: December 13, 2010
    Publication date: June 16, 2011
    Applicant: ELECTROLUX HOME PRODUCTS, INC.
    Inventor: Warren Fowler
  • Publication number: 20110107948
    Abstract: 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: Application
    Filed: May 13, 2009
    Publication date: May 12, 2011
    Inventors: Chikatoshi Kurata, Kazuhito Yoshikawa, Kazuyoshi Kaizuka, Koji Taniguchi, Takaharu Asakawa, Noriaki Ishikawa
  • Patent number: 7901205
    Abstract: 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: Grant
    Filed: July 27, 2006
    Date of Patent: March 8, 2011
    Assignee: Burner Systems International (BSI)
    Inventor: Christophe Trochou
  • Publication number: 20100330519
    Abstract: 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: Application
    Filed: June 9, 2010
    Publication date: December 30, 2010
    Inventor: David Deng
  • Patent number: 7850448
    Abstract: 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: Grant
    Filed: March 3, 2004
    Date of Patent: December 14, 2010
    Assignee: Beckett Gas, Inc.
    Inventor: Terrance C. Slaby
  • Patent number: 7841332
    Abstract: 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: Grant
    Filed: February 14, 2008
    Date of Patent: November 30, 2010
    Assignee: Electrolux Home Products, Inc.
    Inventors: John Pottenger, William A. Pryor, Piero Armanni, Paulo Serenellini
  • Patent number: 7833011
    Abstract: 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: Grant
    Filed: October 11, 2005
    Date of Patent: November 16, 2010
    Assignee: Sandvik Intellectual Property AB
    Inventors: Bo Jönsson, Kari Korhonen, Pauli Mäenpää, Thomas Lewin
  • Patent number: 7780437
    Abstract: 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: Grant
    Filed: September 29, 2005
    Date of Patent: August 24, 2010
    Inventors: Stefano Bernero, Christian Joerg Matz, Martin Zajadatz, Christian Oliver Paschereit
  • Patent number: 7775792
    Abstract: 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: Grant
    Filed: November 6, 2006
    Date of Patent: August 17, 2010
    Assignee: Riello S.p.A.
    Inventors: Francesco De Boni, Roberto Marchetti, Flavio Pastorato, Lorenzo De Fanti
  • Patent number: 7753677
    Abstract: 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: Grant
    Filed: August 20, 2003
    Date of Patent: July 13, 2010
    Assignee: Siemens Aktiengesellschaft
    Inventors: Peter Berenbrink, Malte Blomeyer, Werner Krebs, Bernd Prade, Holger Streb
  • Publication number: 20100136496
    Abstract: 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: Application
    Filed: February 4, 2010
    Publication date: June 3, 2010
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Hiroyuki KASHIHARA, Yasushi YOSHINO, Kiyoshi MATSUMOTO, Takeshi KIMURA, Junichi KITAJIMA, Atsushi HORIKAWA
  • Patent number: 7717700
    Abstract: 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: Grant
    Filed: February 28, 2005
    Date of Patent: May 18, 2010
    Assignee: Alstom Technology Ltd.
    Inventors: Richard Carroni, Timothy Griffin
  • Publication number: 20100035197
    Abstract: A cap for a gas burner is disclosed. The cap includes a center portion including a top surface having a periphery; at least one extension extending outward from the center portion, the at least one extension defining a drain channel extending outward and downward from the top surface; and a ledge extending along the periphery. A spill resistant gas burner assembly incorporating such a cap is also disclosed.
    Type: Application
    Filed: August 11, 2008
    Publication date: February 11, 2010
    Inventor: Paul Bryan CADIMA