Separately Supplied Or Controlled, Physically Related Flame Holders, E.g., Diverse Fuels, Pilot And Main, Etc. Patents (Class 431/278)
  • Patent number: 10386062
    Abstract: A method for operating a combustion system includes outputting fuel and oxidant from a fuel and oxidant source onto a perforated flame holder. The method further includes sustaining a combustion reaction of the fuel and oxidant within the perforated flame holder.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: August 20, 2019
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: Douglas W. Karkow, Joseph Colannino, Christopher A. Wiklof
  • Patent number: 9822975
    Abstract: A gas valve unit for setting a gas volumetric flow to a twin-circuit gas burner of a gas appliance includes a valve body having a gas inlet and two gas outlets, and a control mechanism for adjusting the gas volumetric flow to at least one of the gas outlets in a multiple-stage manner. The control mechanism has a zero position in which the gas volumetric flow to the gas outlets is interrupted, and a switching position which is adjacent to the zero position and in which the gas volumetric flow is set to a maximum value.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: November 21, 2017
    Assignee: BSH Hausgeräte GmbH
    Inventors: Christophe Cadeau, Jörn Naumann
  • Patent number: 9581329
    Abstract: A gas-fueled heater can have a housing with pressure regulators, a control valve, a fluid selection valve and a burner positioned therein. The pressure regulators, control valve, fluid selection valve and burner can be configured to combust a fuel to create heat. The housing can include a number of holes passing therethrough to control access to the various components.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: February 28, 2017
    Inventor: David Deng
  • Patent number: 9033697
    Abstract: A method for starting a burner for combusting synthesis gases is provided. The burner includes first and second fuel passages, the first fuel passage encompasses the second fuel passage in a substantially concentric manner and the gas transferred to the burner is mixed with combusting air and is combusted. In order to start the burner, the second fuel passage is first loaded with a synthesis gas to a predefined burner power at a first starting phase and the first fuel passage is loaded with the synthesis gas at a second starting phase.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: May 19, 2015
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Berthold Köstlin, Frank Hannemann, Andreas Heilos, Gerhard Zimmermann
  • 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: 20150086930
    Abstract: This disclosure may relate generally to systems, devices, and methods for a injecting a compound through a sootblower, burner or other utility furnace hardware, such that the compound can be delivered to targeted areas on the inside of a utility furnace. In one embodiment, the compound is a chemical for improving environmental controls. In another embodiment, the compound is a fuel. In that embodiment, compound can facilitate retrofitting a burner to a dual fired utility furnace. In another embodiment, the compound is a chemical for removing slag from the furnace.
    Type: Application
    Filed: December 5, 2014
    Publication date: March 26, 2015
    Inventor: Christopher L. Abeyta
  • Publication number: 20150072297
    Abstract: The invention relates to a method for heating an industrial furnace, wherein, apart from heating gas, a combustible process gas is also fed to a burner arrangement (9) of the industrial furnace for heating an interior space in the course of a heat treatment cycle. In order to optimize the use of the combustible process gas for the heating of the industrial furnace, the heat treatment cycle is split up into a plurality of process phases, wherein the supply of the process gas to the burner arrangement (9) is regulated depending on the process phase. Furthermore, the invention relates to a heating device (8) for an industrial furnace, as well as an industrial furnace that includes the heating device.
    Type: Application
    Filed: September 4, 2014
    Publication date: March 12, 2015
    Inventors: Rolf Sarres, Marc Angenendt
  • 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
  • Patent number: 8960234
    Abstract: A gas valve unit for adjusting a gas volume flow in a dual circuit gas burner of a gas appliance includes a valve body having a gas inlet and two gas outlets; and a control mechanism constructed to adjust the gas volumetric flow supplied to one of the gas outlets in a number of stages and to adjust the gas volumetric flow supplied to other one of the gas outlets in a number of stages.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: February 24, 2015
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Christophe Cadeau, Jörn Naumann
  • Publication number: 20150050603
    Abstract: A dual-pressure flare system and a method of its use. The dual-pressure flare system includes a dual-pressure flare stack having a central axis that is aligned with the center of a high-pressure outlet; a high-pressure flue having a central axis that is co-linear with the central axis of the dual-pressure flare stack; and a low-pressure flue connected to a low-pressure tip. Some exemplary embodiments of the system further include an air-assist assembly having an air-supply connection connected to an air blower and a mixing chamber, wherein the mixing chamber surrounds the low-pressure tip. In some exemplary embodiments, the air-supply connection is disposed outside the dual-pressure flare stack and the high-pressure flue.
    Type: Application
    Filed: August 14, 2013
    Publication date: February 19, 2015
    Inventors: Danny Edward Griffin, Andrew Avila, JR.
  • Patent number: 8932049
    Abstract: The present invention relates to a top burner and a cooker including the top burner. The present invention includes: an outer burner installed on a top surface of a top plate, and provided with a plurality of flame holes to form flames through combusting gas mixture at a perimeter thereof; an inner burner installed on a top surface of the outer burner, and provided with a plurality of flame holes to form flames through combusting gas mixture at a perimeter thereof disposed inward to the perimeter of the outer burner; a plurality of first mixing tubes supplying gas mixture mixed with air inside the outer burner; a second mixing tube supplying gas mixture mixed with air inside the inner burner; and a passage formed through the outer tube, and in which air supplied to combust gas mixture at the flame holes of the inner burner flows. Thus, according to the present invention, the advantages of heating food more efficiently while reducing incomplete combustion of gas mixture can be realized.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: January 13, 2015
    Assignee: LG Electronics Inc.
    Inventors: Jung-Wan Ryu, Dae-Bong Yang, Yong-Ki Jeong, Young-Soo Kim, Dae-Rae Lee, Yang-Ho Kim, Jae-Bum Lim, Jae-Hyuk Wie
  • Patent number: 8920159
    Abstract: An apparatus is provided for combining oxygen and fuel to produce a mixture to be burned in a burner. The oxygen-fuel mixture is ignited in a fuel-ignition zone in a flame chamber to produce a flame.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: December 30, 2014
    Assignee: Honeywell International Inc.
    Inventor: Curtis Taylor
  • Patent number: 8920160
    Abstract: Low NOx emission industrial burner, adapted to operate both in a flame or stage mode and in a flameless mode, so that also the heating step of the chamber of a furnace may be made by means of the same burner, without providing a pilot burner, thus ensuring very low NOx emissions for the whole operation range of the burner and for the whole range of temperatures in the chamber. The combustion process, made by means of said burner, provides for the possibility to combine the stage mode operation with the flameless mode operation.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: December 30, 2014
    Assignee: Danieli & C. Officine Meccaniche S.p.A.
    Inventors: Enrico Mozzi, Michele Valenza
  • Publication number: 20140345598
    Abstract: The present invention refers to a burner for cooking equipments which comprises a configuration whose purpose is to ensure the integrity of the flames of the main openings by maintaining the pressure originated in the burner. Particularly, the present invention refers to a burner which comprises a base (1) containing a cavity (2), in which a sustaining element (3) that supports a cover (4) is placed; wherein, between said sustaining element (3) and said cover (4), it is formed a channel (5), which, at least partially, encircles the cited cavity (2) to form at least one pilot flame at the end (6) of said channel (5) that is provided in the periphery of the edge of the cavity (2).
    Type: Application
    Filed: December 18, 2012
    Publication date: November 27, 2014
    Inventors: Marcos Raphael Da Silva, Henrique Cesar De Gaspari
  • 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: 8882493
    Abstract: A method and system for fueling of a burner in a direct-fired device using syngas. A gasifier produces syngas from a carbonaceous feedstock such as biomass. The syngas is fed to a syngas burner. A booster burner disposed between the gasifier and the syngas burner increases the temperature of the syngas. The booster burner may be provided with an approximately stoichiometric or sub-stoichiometric amount of oxidant. Operation of the booster burner may be regulated based on the temperature of the syngas. The syngas burner may be used to direct-fire a device requiring a relatively high flame temperature, such as, for example, a lime kiln.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: November 11, 2014
    Assignee: Nexterra Systems Corp.
    Inventors: Hendrick Vandergriendt, Duncan Meade, Yan Li, Nebojsa Plavsic
  • Patent number: 8863404
    Abstract: A dryer performance optimization system comprising a dryer having an inner wall and being adapted to rotate at variable speeds and a variable frequency drive being adapted to vary the rotational speed of the dryer. The preferred system also comprises a baghouse having an inlet end being adapted to receive exhaust gas from the dryer and an outlet end and a controller being adapted to control the temperature of the exhaust gas from the dryer. A method for controlling the temperature of exhaust gas in a baghouse comprising providing a dryer performance optimization system as described herein and varying the temperature of the exhaust gas from the dryer by varying the rotational speed of the dryer.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: October 21, 2014
    Assignee: Astec, Inc.
    Inventor: Malcolm Swanson
  • Patent number: 8845326
    Abstract: An gas burner assembly for a cooking appliance includes a main burner assembly, a simmer burner assembly positioned in a stacked relationship with and located below the main burner assembly, a venturi assembly for delivering a gas flow to the main burner assembly, a gas boost pump configured to control a pressurization of the gas flow, a gas valve assembly for controlling a rate of the gas flow, and an encoder coupled to the gas valve assembly, the encoder configured to track a position of the gas valve assembly and provide a signal to the gas boost pump for pressurization of the gas flow.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: September 30, 2014
    Assignee: General Electric Company
    Inventors: Timothy Scott Shaffer, Eric K. Watson, Brian Michael Schork, Paul Bryan Cadima, Paul E. McCrorey
  • Patent number: 8764436
    Abstract: In certain embodiments, a valve assembly can comprise a housing, a valve body, a first burner nozzle member and a second burner nozzle member. The housing can define an oxygen depletion sensor (ODS) inlet and a burner inlet. The valve body can be positioned within the housing and configured to rotate between a first position for a first fuel type and a second position for a second fuel type different from the first.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: July 1, 2014
    Assignee: Procom Heating, Inc.
    Inventor: David Deng
  • Patent number: 8689782
    Abstract: A gas burner includes a burner body and a simmer plate assembly. The burner body includes a central cavity in which at least one flame is provided. The simmer plate assembly includes a plate portion and a base portion configured to support the plate portion. The assembly is configured to be at least partially and removably inserted into the central cavity. The plate portion is configured to act as a barrier between the at least one flame and a heated object placed above the gas burner.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: April 8, 2014
    Assignee: Electrolux Home Products, Inc.
    Inventor: Michael Padgett
  • Publication number: 20140072919
    Abstract: A heater assembly can be used with a gas appliance. The gas appliance can be a dual fuel appliance for use with one of a first fuel type or a second fuel type different than the first. The heater assembly can include a fuel regulator valve including a main pressure regulator to maintain the fuel pressure, a first fuel source connection for connecting the first fuel type to the heater assembly, a second fuel source connection for connecting the second fuel type to the heater assembly, and an air shutter system. The air shutter system introduces air into the fuel discharged at the main burner nozzle before it is supplied to the main burner. The air shutter system can open the air shutter to two or more different positions to vary the amount of air introduced based on the type of fuel supplied.
    Type: Application
    Filed: March 8, 2013
    Publication date: March 13, 2014
    Applicant: CONTINENTAL APPLIANCES, INC. D.BA PROCOM
    Inventor: David Deng
  • Patent number: 8668489
    Abstract: An ignition system for a multi-burner heat exchanger assembly, a furnace, and a method using same are disclosed. The assembly may include a plurality of adjacent heat exchanger tubes, with a burner associated with each tube. All the burners may be lit with a single igniter and no source of secondary air. To do so, each of the burners may be provided so as to generate a swirling exit flow of combustion gases. One or more carryover tubes may also be connected between adjacent pairs of heat exchanger tubes or adjacent pairs of burners. The swirling flow generated by the burners causes hot combustion gases to move through the carryover tubes to thus carry the flame from one burner to the next. Not only can a single igniter be used, but a single flame sensor as well, while at the same time reducing nitrogen oxide emissions.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: March 11, 2014
    Assignee: Carrier Corporation
    Inventors: Louis Chiappetta, Scott A. Liljenberg, Meredith B. Colket, Shiling Zhang
  • Patent number: 8662884
    Abstract: An apparatus of controlling oxygen supply for a boiler having wind boxes 2a and 2b arranged on left and right of a boiler body 1 is configured to control supply balance of oxygen by adjusting oxygen supply opening degrees of the left and right oxygen distribution dampers 15a and 15b in accordance with a oxygen supply flow rate and left and right actually measured oxygen concentrations when controlling the oxygen supply amounts and to control the exhaust gas flow rates by correcting an exhaust gas flow rate set value corresponding to a boiler load demand in accordance with an oxygen concentration set value corresponding to a boiler load demand, left and right actually measured exhaust gas flow rates and left and right actually measured oxygen concentrations and adjusting left and right exhaust gas introduction opening degrees of the left and right exhaust gas introduction dampers 8a and 8b when controlling the exhaust gas flow rates.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: March 4, 2014
    Assignees: IHI Corporation, Electric Power Development Co., Ltd.
    Inventors: Toshihiko Yamada, Terutoshi Uchida, Masami Sato
  • Patent number: 8636503
    Abstract: An improved pilot burner includes an orifice plate defining a central orifice for metering a supply of gas and a gas tube. The gas tube includes a tube wall and defines a supply opening at a first end. The orifice plate is positioned within the gas tube at the supply opening, and the tube wall is crimped around the orifice plate to secure the orifice plate to the gas tube. The pilot burner also includes a burner tube having a first end for receiving a first end of the gas tube. The burner tube further includes a second end defining a flame opening. In another embodiment, a clip is used to secure the gas tube and the burner tube to a bracket.
    Type: Grant
    Filed: July 16, 2008
    Date of Patent: January 28, 2014
    Assignee: Honeywell International Inc.
    Inventors: Donald J. Kasprzyk, Sybrandus B. V. Munsterhuis
  • Publication number: 20140004471
    Abstract: A method and system for fueling of a burner in a direct-fired device using syngas. A gasifier produces syngas from a carbonaceous feedstock such as biomass. The syngas is fed to a syngas burner. A booster burner disposed between the gasifier and the syngas burner increases the temperature of the syngas. The booster burner may be provided with an approximately stoichiometric or sub-stoichiometric amount of oxidant. Operation of the booster burner may be regulated based on the temperature of the syngas. The syngas burner may be used to direct-fire a device requiring a relatively high flame temperature, such as, for example, a lime kiln.
    Type: Application
    Filed: March 17, 2011
    Publication date: January 2, 2014
    Applicant: NEXTERRA SYSTEMS CORP.
    Inventors: Hendrick Vandergriendt, Duncan Meade, Yan Li, Nebojsa Plavsic
  • Patent number: 8596259
    Abstract: A gas burner for an appliance includes a base and a cover. The base includes a wall peripherally formed about the base. The wall includes a plurality of slits extending through the wall and downwardly from a top of the wall. A cover is configured to be placed on the base and form a chamber in fluid communication with a gas conduit. The cover is configured to bound the slits to define a plurality of ports for releasing combustible gas exteriorly of the gas burner. The ports include an entry section near the inner surface and an exit section near the outer surface. Each of the slits includes a floor that is curved upwards from the entry section to the exit section.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: December 3, 2013
    Assignee: Electrolux Home Products, Inc.
    Inventors: Michael Padgett, John Pottenger, William M. Pryor
  • Publication number: 20130288187
    Abstract: A multiflame burner with burner nozzles which can be loaded with fuel gas, particularly for thermal material processing methods, in which at least one of the burner nozzles is provided with at least one auxiliary nozzle opening for generating an auxiliary flame arranged laterally to a main nozzle arrangement for generating a working flame and in the direction of at least one adjacent burner nozzle.
    Type: Application
    Filed: February 10, 2011
    Publication date: October 31, 2013
    Applicant: LINDE AKTIENGESELLSCHAFT
    Inventors: Anton Imgrundt, Johann Stocker
  • Patent number: 8568136
    Abstract: A heater can be configured to operate with either a first fuel at a first pressure or a second fuel at a second pressure. In some embodiments, a pressure regulator unit is configured to regulate the pressure of either the first fuel or the second fuel and to direct either the first fuel or the second fuel towards a combustion chamber. A nozzle assembly can be configured to inject the fuel into the combustion chamber.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: October 29, 2013
    Assignee: Procom Heating, Inc.
    Inventor: David Deng
  • Patent number: 8545216
    Abstract: In certain embodiments, a valve assembly includes a housing. The housing can define a first fuel intake, a first fuel output, and a second fuel output. The assembly can include a valve member configured to direct fuel from the first fuel intake to either the first fuel output or the second fuel output. The assembly can further include a nozzle having a first portion and a second portion. The first portion of the nozzle can be in communication with the first fuel output, and the second portion of the nozzle can be in communication with the second fuel output. The assembly can include a compartment in communication with the nozzle, and can include one or more air intakes.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: October 1, 2013
    Assignee: Continental Appliances, Inc.
    Inventor: David Deng
  • 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: 8517717
    Abstract: The proper sizing of microchannel dimensions and the management of internal features offer the possibility of inherently safe operation within the flammable limits of a combustible fluid stream while preserving the largest-possible flow dimensions for industrial-scale process capacity. Specifically, the microchannel dimensions need not be restricted to gap distances below the quenching distance to be operated safely. Microchannel performance can be engineered to provide adequate heat transfer for flame propagation. However, it is essential to maintain flame characteristics in such a manner that it cannot transition to a detonation flame front. A detonation takes place when the combustion wave propagates at supersonic speeds at the existing local temperature and pressure conditions in the system. It results in a much larger energy release over a much smaller period of time as compared to a laminar flame or deflagration, the later of which is a combustion wave propagating at subsonic speed.
    Type: Grant
    Filed: August 13, 2004
    Date of Patent: August 27, 2013
    Assignee: Velocys, Inc.
    Inventors: David J. Hesse, Kai Jarosch
  • Patent number: 8479759
    Abstract: A device for controlling a combustible gas supply to a burner is provided, which includes first and second servovalves, having respective valve seats associated with a corresponding shut-off mechanism, which include respective first and second control solenoid valves with an electromagnetic operating device that controls the opening/closing of the corresponding servovalve. The solenoid valves act to indirectly control the corresponding servovalve's respective shut-off mechanism. The pipes of the control are in communication with the main pipe through an auxiliary bleed pipe. A pilot pipe is branched from the auxiliary pipe to supply a pilot burner, and a thermoelectric magnetic unit with a knob is provided on the auxiliary pipe, which allows gas to flow towards the pilot burner when the unit is activated, while simultaneously shutting off the flow of gas towards the servovalve control circuit. The device includes a control mechanism, controlled by the knob, which controls gas flow.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: July 9, 2013
    Assignee: Sit La Precisa S.p.A. Con Socio Unico
    Inventors: Michele Benvenuto, Salvatore Pappalardo, Gianpiero Turrin
  • Patent number: 8480394
    Abstract: The invention relates to a flat-flame vault burner (10) suitable for being installed in a vault (21) which delimits the combustion chamber (20) of a steel heating furnace, the burner (10) comprising a main metallic hollow cylindrical body (12), a single duct (13) for the conveyance of fuel gas concentric to the main body (12), and a central internal nozzle (14) for the injection of a fuel gas. Said burner also comprises at least two nozzles (17) outside said main body (12) for the injection of fuel into the combustion chamber (20).
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: July 9, 2013
    Assignee: Tenova S.p.A.
    Inventors: Marco Daneri, Vittorio Laviosa, Maurizio Senarega, Massimiliano Fantuzzi, Umberto Zanusso, Enrico Malfa
  • Publication number: 20130157203
    Abstract: A gas fired catalytic heater is provided that foregoes the need for an electrical heating element to provide the activation energy for the hydrocarbon catalyst pad. An alcohol self-igniting catalyst pad is used to provide the activation energy to the hydrocarbon catalyst pad thereby removing dependence of the heater on an outside electrical energy source to initiate start-up of the heater. The catalyst pad includes a flexible wash coat; a noble metal dispersed on the wash coat; an anti-sintering element saturating the wash coat; and a catalyst promoter saturating the wash coat.
    Type: Application
    Filed: February 15, 2013
    Publication date: June 20, 2013
    Applicant: CC/ Thermal Technologies Inc.
    Inventor: CC/ Thermal Technologies Inc.
  • Patent number: 8464703
    Abstract: 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: Grant
    Filed: December 17, 2008
    Date of Patent: June 18, 2013
    Assignee: 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
  • Patent number: 8465277
    Abstract: A heat engine can have a fuel selector valve for selecting between a first fuel and a second fuel. Making the selection with the fuel selector valve can also determine a flow path through the heat engine, there being two different paths, each configured for a different fuel. A burner nozzle can form a single unit with the fuel selector valve. In some embodiments the burner nozzle can also form a single unit with an outlet valve.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: June 18, 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
  • Publication number: 20130149653
    Abstract: In a rich-lean combustion burner, each of outer rich-side flame holes disposed on both outer sides is supplied with rich-side mixture in the same amount and mixing state as the others. A lower end part of a central rich-side burner part is projected into an interior of a tubular part to which a rich-side mixture is introduced. First communication holes are opened, respectively, in both side walls of the lower end part. A second and a third communication holes in fluid communication with an outer rich-side burner part are opened in a tubular part. The second and the third communication holes are oriented so as to face each other without any obstruction, other than a space, therebetween. Furthermore, a pocket part which is a space part adapted to collect and accumulate dust particles is formed on the downstream side up to a closed end.
    Type: Application
    Filed: December 7, 2012
    Publication date: June 13, 2013
    Applicant: NORITZ CORPORATION
    Inventor: NORITZ CORPORATION
  • Publication number: 20130149652
    Abstract: In certain embodiments, an apparatus can comprise a dual fuel pilot assembly. The pilot assembly can comprise a first fuel dispenser, a second fuel dispenser, an igniter and at least one of a thermocouple, and a thermopile. The pilot assembly can be configured to direct heat from combustion of one of either a first fuel or a second fuel to the at least one of the thermocouple and the thermopile.
    Type: Application
    Filed: October 26, 2012
    Publication date: June 13, 2013
    Applicant: CONTINENTAL APPLIANCES, INC. D.B.A. PROCOM
    Inventor: Continental Appliances, Inc. D.B.A. Procom
  • Patent number: 8403661
    Abstract: A heater having first and second oxygen depletion sensors and a main burner injector and configurable for the delivery of at least first and second types of fuels.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: March 26, 2013
    Assignee: Coprecitec, S.L.
    Inventor: Ruben Mateos Martin
  • Patent number: 8398393
    Abstract: A gas fired catalytic heater is provided that foregoes the need for an electrical heating element to provide the activation energy for the hydrocarbon catalyst pad. An alcohol self-igniting catalyst pad is used to provide the activation energy to the hydrocarbon catalyst pad thereby removing dependence of the heater on an outside electrical energy source to initiate start-up of the heater. The catalyst pad includes a flexible wash coat; a noble metal dispersed on the wash coat; an anti-sintering element saturating the wash coat; and a catalyst promoter saturating the wash coat.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: March 19, 2013
    Assignee: CCI Thermal Technologies Inc.
    Inventors: Jarek Szynkarczuk, Kowlasar Misir, Harold A. Roozen
  • Patent number: 8387611
    Abstract: Various embodiments of a gas valve and a sear-zone gas burner are described and claimed herein. One embodiment described herein relates to a cooking chamber with a cooking surface, which has at least two portions including a first portion and a second portion. The first and second portions of the cooking surface each have at least one heat source disposed underneath. The at least one heat source for each cooking surface in turn has a highest setting such that a first maximum heat output is provided to the first portion of the cooking surface when set at the highest setting and a second maximum heat output is provided to the second portion of the cooking surface when set at highest setting, wherein the second maximum heat output provided to the second portion is greater than the first maximum heat output provided to the first portion of the cooking surface.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: March 5, 2013
    Assignee: Weber-Stephen Products Co.
    Inventors: Adrian A. Bruno, Erich Schlosser
  • Patent number: 8337197
    Abstract: A gas burner apparatus for discharging a mixture of fuel gas, air and flue gas into a furnace space of a furnace wherein the mixture is burned and flue gas having a low content of nitrous oxides and carbon monoxide is formed is provided. The burner tile includes at least one gas circulation port extending though the wall of the tile. The interior surface of the wall of the tile includes a Coanda surface. Fuel gas and/or flue gas conducted through the gas circulation port follows the path of the Coanda surface which allows more flue gas to be introduced into the stream. The exterior surface of the wall of the tile also includes a Coanda surface for facilitating the creation of a staged combustion zone. Also provided are improved burner tiles, improved gas tips and methods of burning a mixture of air, fuel gas and flue gas in a furnace space.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: December 25, 2012
    Assignee: John Zink Company, LLC
    Inventors: Roger L. Poe, James Wilkins, Michael G. Claxton
  • Publication number: 20120315586
    Abstract: A method and apparatus for combustion in which a pressurized preheated liquid fuel is atomized and a portion thereof flash vaporized, creating a mixture of fuel vapor and liquid droplets. The mixture is mixed with primary combustion oxidant, producing a fuel/primary oxidant mixture which is then injected into a primary combustion chamber in which the fuel/primary oxidant mixture is partially combusted, producing a secondary gaseous fuel containing hydrogen and carbon oxides. The secondary gaseous fuel is mixed with a secondary combustion oxidant and injected into the second combustion chamber wherein complete combustion of the secondary gaseous fuel is carried out. The resulting second stage flue gas containing very low amounts of NOx is then vented from the second combustion chamber.
    Type: Application
    Filed: June 9, 2011
    Publication date: December 13, 2012
    Applicant: GAS TECHNOLOGY INSTITUTE
    Inventors: Vincent GARD, Dennis A. CHOJNACKI, Ioseph K. RABOVITSER
  • 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
  • Publication number: 20120308945
    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 members inserted into the slit part, thereby being interposed between the first plate members.
    Type: Application
    Filed: May 30, 2012
    Publication date: December 6, 2012
    Applicant: NORITZ CORPORATION
    Inventors: Norihide Wada, Takashi Akiyama, Takeshi Wakada, Itsuo Nagai, Ryosuke Umakoshi
  • Publication number: 20120295206
    Abstract: A high efficiency laminar flow burner system for proving a stream of heat energy including a supply input module for providing fuel and laminar streams of air to a combustion manifold. The laminar air delivery system includes a damper, a blower, and an air delivery controller. The air delivery controller receives an efficiency signal to control the flow of a laminar air intake stream by adjusting the damper. The combustion manifold includes an air-fuel mixing system, a stoichiometric unit, and a refractory unit each coupled to one another. The laminar air intake stream traveling from the supply input module passes through a stoichiometric unit body to meet with a first combustion stream from an air-fuel mixing chamber within the stoichiometric unit body to define a second combustion stream. The second combustion stream then travels across the refractory passageway to define a third combustion stream.
    Type: Application
    Filed: August 3, 2012
    Publication date: November 22, 2012
    Inventors: TEODORO A. CANTU, ULRIC TEODORO ALEJANDRO CANTU, ERVIN ELIUD TORRES GOMEZ
  • Publication number: 20120288805
    Abstract: The invention relates to a heating system and a method for operating said system, comprising a first and a second heating device (1, 2) and a common control unit (3), wherein the first and the second heating device (1, 2) is designed such that it can be operated with the same fluid fuel and that it can be controlled by means of the control unit (3). According to the invention, at least one time-dependent process parameter of the control unit (3) is intended and/or used as a calculation basis for determining fuel consumption values of the first and/or second heating device (1, 2).
    Type: Application
    Filed: November 5, 2010
    Publication date: November 15, 2012
    Applicant: VIESSMANN WERKE GMBH & CO. KG
    Inventors: Stefan Eitzenhoefer, Ingo Seliger
  • Publication number: 20120276488
    Abstract: A gas-fired water heater includes a pilot assembly that provides a pilot flame deflector. The pilot flame deflector causes the pilot flame to surround a hot junctions end of a thermopile. The flame deflector does not cover a cold junctions end of the thermopile, such that the cold junctions are ventilated. A temperature differential between the hot and cold junctions is increase by ventilating the cold junctions and surrounding the hot junctions with the pilot flame. The temperature differential is further increased by radiant and convective heat applied to the hot junctions as a result of the flame deflector.
    Type: Application
    Filed: April 6, 2012
    Publication date: November 1, 2012
    Inventors: Tibor M. Virag, Larry Chanasyk
  • Patent number: 8297968
    Abstract: In certain embodiments, an apparatus can comprise a dual fuel pilot assembly. The pilot assembly can comprise a first fuel dispenser, a second fuel dispenser, an igniter and at least one of a thermocouple, and a thermopile. The pilot assembly can be configured to direct heat from combustion of one of either a first fuel or a second fuel to the at least one of the thermocouple and the thermopile.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: October 30, 2012
    Assignee: Continental Appliances, Inc.
    Inventor: David Deng