Mixer And Flame Holder Patents (Class 431/354)
  • Patent number: 10281144
    Abstract: A burner assembly including a gas inlet fixture for use with a burner tube, the gas inlet fixture including a plurality of tabs to engage a neck of a gas control valve to improve ignition and center the gas flow down the center of the burner tube.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: May 7, 2019
    Assignee: Weber-Stephen Products LLC
    Inventors: Roy N. Voss, Mohammed Shoeb
  • Patent number: 10024539
    Abstract: A method of providing fuel to a combustion chamber of a combustion can in a radial direction of the combustion can, and a micromixer cap having axially arranged fuel stages that receive fuel from a radial direction, the fuel stages supplies fuel to different radial zones of micromixer tubes arranged in a concentric configuration to provide a mixture of fuel and air for combustion.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: July 17, 2018
    Assignee: General Electric Company
    Inventor: Scott Robert Simmons
  • Patent number: 9925502
    Abstract: A flow device for an exhaust system includes a body that defines an interior cavity. An exhaust inlet passage is disposed in the interior cavity. An exhaust outlet passage is disposed in the interior cavity so that at least a portion of the exhaust inlet passage circumferentially surrounds at least a portion of the exhaust outlet passage. A doser is adapted to inject reductants into the interior cavity of the body such that the reductants are injected in the same general direction as the direction of flow of the exhaust gases.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: March 27, 2018
    Assignee: Donaldson Company, Inc.
    Inventors: Korneel De Rudder, Bart Schellens, Antonio Gil, Nic Degelin
  • Patent number: 9726370
    Abstract: A tubular burner includes: a mixing tube having an inlet port into which a fuel gas and primary air flow; and a flame hole member having a plurality of flame holes and being fitted into a front end portion of the mixing tube. The flame holes of the flame hole member are made up of a central main flame hole and a plurality of subsidiary flame holes positioned around, and each being smaller than, the central main flame hole. In an annular region of the flame hole member defined between an outer periphery of the flame hole member and the central main flame hole, a plurality of non-flame-hole regions which are free from formation of the subsidiary flame holes are provided at a circumferential distance from one another. The plurality of the subsidiary flame holes are formed in each of flame hole regions defined between the non-flame-hole regions.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: August 8, 2017
    Assignee: RINNAI CORPORATION
    Inventor: Tadayuki Hiraga
  • Patent number: 9671111
    Abstract: A selector valve and shutter mechanism for use with a gas burner unit is disclosed. The valve includes a pilot gas manifold which is in communication with two pilot flames and associated ODS for two different kinds of gas fuel. The shutter mechanism opens or closes an opening to a burner mixing chamber to thereby adjust the flow of air into the mixing chamber depending on the fuel selected, and preferably is in the form of a sleeve that in one approach is rotatably mounted on a part of the burner mixing chamber, with a part of the sleeve covering the mixing chamber opening in one orientation and opening it to airflow in another orientation. A first gear is mounted on the sleeve which is engageable with a second gear mounted on part of the valve which is rotatable to one position or another depending on the gas fuel selected, the sleeve thereby adjusting the airflow to the mixing chamber in response to the valve position. In another approach, the cover moves linearly along the burner tube between orientations.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: June 6, 2017
    Assignee: GHP Group, Inc.
    Inventor: Verlon (Dan) Downing
  • Patent number: 9593854
    Abstract: A gas stove having an upper work plate with at least one integrated gas burner, said gas burner including a bowl-shaped base body, a burner crown, and an upper cap, with several flame ports provided to let out a gas-air mixture towards a recipient to be heated, and an annular mixing zone, whose cross section incrementally expands towards the flame ports, defined between the burner crown and the upper cap with the burner crown including a Venturi pipe which feeds the gas-air mixture into the mixing zone and is designed to suck primary air from above the upper work plate the flame ports are formed in the upper cap as through-holes, and the bottom side of the upper cap, which defines the upper side of the mixing zone, is at least partially inclined upwardly towards the flame ports to define the incrementally expanding cross section of the mixing zone.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: March 14, 2017
    Assignee: ELECTROLUX HOME PRODUCTS CORPORATION N.V.
    Inventors: Fabio Rasi, Cedric Catalogne, Nico Biagioli
  • Patent number: 9533275
    Abstract: A furnace for performing an endothermic process comprises tubes containing a catalyst for converting a gaseous feed, said tubes positioned inside the furnace, inner burners mounted to a furnace roof between the tubes, and outer burners mounted to the furnace roof between the tubes and a furnace wall. The outer burners are positioned close to the furnace wall, and configured to operate with 45-60% of the power of the inner burners and with an inlet velocity between 90 to 110% of the inlet velocity of the inner burners.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: January 3, 2017
    Assignee: L'Air Liquide Société Anonyme Pour L'Étude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Julien Cances, Frederic Camy-Peyret, Bernard Labegorre
  • Patent number: 9528708
    Abstract: Provided is a burner. The burner includes a burner body receiving a gas and air, a burner head seated on the burner body, the burner head including an inner burner head and an outer burner head, and a burner cap seated on the burner body to cover the burner head. An outer flame hole through which a mixture gas is discharged and a flame spread space for spreading flame into the inner burner head are defined on the outer burner head, and an inner flame hole through which the mixture gas is discharged and an ignition hole defined under the inner flame hole are defined on the inner burner head.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: December 27, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Jaebeom Lim, Janghee Park, Yongki Jeong
  • Patent number: 9410698
    Abstract: A tubular burner includes a mixing tube and a flame hole member having a plurality of flame holes. The flame hole member is made of a sheet metal plate and has: a circular disk part having the plurality of flame holes formed therein; and a fitting tubular member which is elongated backward from a periphery of the circular disk part and is adapted to be fitted into an inner circumference at the front end region of the mixing tube. A clearance-generating section is formed at a front of the fitting tubular member so as to generate an annular clearance between the clearance-generating section and the inner circumference at the front end region of the mixing tube. A plurality of flame retention holes are formed in the clearance-generating section at a circumferential distance from one another.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: August 9, 2016
    Assignee: RINNAI CORPORATION
    Inventor: Keisuke Mori
  • Patent number: 9222669
    Abstract: The present invention relates to a gas combustor, comprising: a gas intake valve, the bottom of a valve tube axially formed in a valve member is installed with a filter member, a first spring is installed above the filter member and inside the valve tube, the top of a valve pin is protruded out of a tube opening formed at and communicated with the top of the valve tube, a plug outwardly protruded at the bottom of the valve pin is abutted against the first spring, the plug is enabled to seal the tube opening through the first spring being stretched, and when the top of the valve pin is axially subject to a force, the valve pin and the plug are downwardly moved, the first spring is compressed thereby enabling the tube opening to be opened.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: December 29, 2015
    Inventor: Chin-Lin Tsai
  • Patent number: 9217572
    Abstract: A burner cap and a burner are provided. The burner cap may include a cap body, an opening formed in the cap body, at a location separated from an edge of the cap body, proximate the center of the cap body, a distribution protrusion formed on a bottom part of the cap body, and a connection guide formed on the distribution protrusion.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: December 22, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Janghee Park, Sangcheol Lee, Jaebeom Lim
  • Patent number: 9170022
    Abstract: A premix burner is provided for a gas turbine, in the form of a double-cone burner, which has two partial cone shells which are arranged nested one inside the other, forming air inlet ducts between them, through which combustion air from the outside flows into a conical inner space of the premix burner. Linear rows of holes of injection openings, which extend transversely to the flow direction of the combustion air, are arranged on the outer walls of the air inlet ducts and through which a gaseous fuel is injected into the combustion air which flows past transversely to them. A method for reworking such premix burners is also provided.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: October 27, 2015
    Assignee: ALSTOM TECHNOLOGY LTD
    Inventors: Frank Grimm, Fulvio Magni, Weiqun Geng, Douglas Anthony Pennell
  • Patent number: 9134033
    Abstract: A gas burner has an air-gas mixture distribution section with an open loop geometry and a plurality of sides. The air-gas mixture distribution section has a top heating surface and a plurality of ports are disposed on the top heating surface. An inlet is disposed on one of the plurality of sides of the air-gas mixture distribution section and a distribution diffuser is mounted inside the air-gas mixture distribution section.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: September 15, 2015
    Assignee: GARLAND COMMERCIAL INDUSTRIES L.L.C.
    Inventors: Roberto Nevarez, Douglas S. Jones
  • Patent number: 9115892
    Abstract: Gas burner, preferably for domestic use, of the type comprising at least one fuel gas injector and at least one corresponding Venturi effect mixer, wherein the above-mentioned injector faces the intake section of said Venturi effect mixer, and one or more passages for the transit of primary air from above the supporting surface, to which the burner is fixed, to the intake section of the Venturi effect mixer. The burner is also provided with means for preventing flame propagation, of the fluid flow splitting type, which comprises at least one substantially tubular body, with relative lateral walls extending at least between the injector and the intake section of the Venturi effect mixer, advantageously consisting of at least one helically wound filiform element.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: August 25, 2015
    Assignee: SABAF S.P.A.
    Inventor: Angelo Bettinzoli
  • Patent number: 9103547
    Abstract: A method and an apparatus are provided for the combustion of gaseous fuel containing hydrogen or consisting of hydrogen, with a burner which provides a swirl generator, into which liquid fuel is fed centrally along a burner axis, at the same time forming a conically shaped liquid fuel column which is surrounded by a rotating combustion air stream which flows tangentially into the swirl generator and into which, additionally, a gaseous and/or liquid fuel is injected so as to form a fuel/air swirl flow which is transferred downstream of the swirl generator, along a transitional portion, into a mixing zone following the transitional portion downstream and which is ignited and burnt in a combustion chamber following downstream, at the same time forming a backflow zone.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: August 11, 2015
    Assignee: ALSTOM TECHNOLOGY LTD
    Inventors: Adnan Eroglu, Richard Carroni, Stefano Bernero
  • Patent number: 9091436
    Abstract: In a rich-lean burner, a gap formed between a lean-flame port and a rich-flame port is in fluid communication with a supply passage through which a lean gas is to be supplied to the lean-flame port. One or more projections are provided on at least one of partition plates disposed between the gap and the lean-flame port and between the gap and the rich-flame port. A recessed portion is formed at a region adjacent to the lean-flame ports at an interface between the distal end of at least one of the projections protruding from one of the partition plates and the other of the partition plates, the distal end of the at least one of the projections being partially not in contact with the other of the partition plates to provide a clearance through which the lean gas is allowed to be supplied to the gap.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: July 28, 2015
    Assignee: Paloma Co., Ltd.
    Inventor: Tsutomu Homma
  • Patent number: 9086221
    Abstract: A gas burner for household may include a zone for mixing combustible gas with air to form an air-gas mixture, an inner chamber with an inner table, and including sides with crenellated walls. A vertex may be formed on each end of the sides, which may be formed by intersecting curved surfaces. A port zone may be on an upper face of the crenellated walls. The port zone includes main ports, which may be centric relative to the vertexes. The symmetry axes of the main ports may be aligned towards the vertex closest to a corresponding port. The ports may be equidistant relative to one another. A lid may close the inner chamber and pass the mixture through the ports. The curved surfaces may have different geometries. The lid may include a cavity, where another burner may be placed.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: July 21, 2015
    Assignee: MABE, S.A. DE C.V.
    Inventors: Jose Arturo Lona Santoyo, Ernesto Arias Del Campo, Roberto Cabrera Botello
  • Patent number: 9052107
    Abstract: A lean-rich burner is provided, in which an air-rich flame and a fuel-rich flame are formed by a simple structure, thereby reducing the emission of noxious gas and enabling stable combustion. The lean-rich burner includes: a main flame part (110) for burning a fuel-rich mixture in which primary air, which is some of air supplied by a blower, and fuel are mixed; auxiliary flame parts (120) installed on left and right sides of the main flame part (110) to burn an air-rich mixture; a main mixture channel (130) for supplying the fuel-rich mixture to the main flame part (110); a mixture distribution hole (140) formed along the main mixture channel (130) to supply some of the mixture flowing along the main mixture channel (130) to the auxiliary flame parts (120); and a Venturi part (150) having a Venturi structure in which secondary air inflow holes (151) are formed to mix secondary air, which is some of the air supplied by the blower, with the mixture introduced through the mixture distribution hole (140).
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: June 9, 2015
    Assignee: Kyungdong Navien Co., Ltd.
    Inventors: Sang-Kook Kim, Jae-Myung Joo
  • Publication number: 20150147703
    Abstract: In various implementations, a burner assembly may include a body coupled to burner heads. The body may include one or more converging and/or diverging parts. For example, the body may include a diverging part proximate one or more of the burner heads of the burner assembly. The body may allow a predetermined fuel/air ratio to be provided to the burner head, in some implementations.
    Type: Application
    Filed: November 22, 2013
    Publication date: May 28, 2015
    Applicant: Lennox Industries Inc.
    Inventors: Shiblee Noman, Ian Burmania
  • Patent number: 9039407
    Abstract: The burner preferably exclusively burns substantially explosible solid fuels and preferably has instant ON-OFF thermostat control, wastes no energy preheating the enclosure or external air supply, achieves stable combustion the moment the powder-air mix is ignited in our burner, is used in the upward vertical mode except for oil burner retrofits, burns a solid fuel in a single-phase regime as if it were a vaporized liquid or gas, is designed to complete combustion within the burner housing itself rather than in a large, high temperature furnace enclosure which it feeds, has an ultra-short residence time requirement, is a recycle consuming burner with self-contained management of initially unburned particles, is much smaller, simpler and lower cost, has a wider dynamic range/turndown ratio, is more efficient in combustion completeness and thermal efficiency, and operates with air-fuel mix approximately at the flame speed.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: May 26, 2015
    Inventors: James K. McKnight, Edward Bacorn, Ken W. White
  • 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: 20150133709
    Abstract: A burner assembly for and method of producing ethylene having a mechanism to inject either primary fuel, staged fuel, or both by premix methods before combustion in a furnace. The burner assembly has at least one premix injection assembly for either exclusively primary fuel or exclusively staged fuel injection paired with a nozzle mix injection or injection means for primary and staged fuel both by premix methods. The primary fuel premix assembly associates with a burner tile that consists of multiple inlets and outlets connected by venturi channels to direct and combine combustion air and staged fuel coming from staged fuel orifice spuds. Primary fuel and combustion air are mixed in a premix assembly and directed inside the furnace, and above the burner tile to complete the reaction with the staged fuel and combustion air mixture in a combustion zone inside of the furnace.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 14, 2015
    Applicant: UOP LLC
    Inventor: Richard Ray Martin
  • Publication number: 20150132703
    Abstract: In various implementations, a burner may include two venturi inlets coupled to one or more burner heads. The venturi inlets may be opposingly disposed. During use, fuel may be provided to the burner via the two venturi inlets and at least partially combusted proximate the burner heads.
    Type: Application
    Filed: November 14, 2013
    Publication date: May 14, 2015
    Applicant: Lennox Industries Inc.
    Inventors: Shiblee Noman, Ian Burmania
  • Patent number: 9028246
    Abstract: The present invention relates to a residual gas burner (13) for a fuel cell system (1) having to educt gas feeds (11, 12) for feeding an educt gas each to a combustion chamber (14) of the residual gas burner (13). An improved operation of the residual gas burner (13) is obtained when the educt gas feeds (11, 12) each comprise outlet openings (22, 27), wherein the outlet openings (22, 27) face the combustion chamber (14) and the outlet openings (22, 27) of one of the educt gas feeds (11, 12) face a first bottom surface (29) of the other educt gas feed (11, 12). In addition, the invention relates to a fuel cell system (1) having such a residual gas burner (13).
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: May 12, 2015
    Assignee: Eberspaecher Climate Control Systems GmbH & Co. KG
    Inventor: Samuel Brandt
  • Patent number: 9022780
    Abstract: An apparatus includes a gas burner assembly which includes a gas burner and a gas supply conduit. The gas burner includes a gas supply opening and a substantially cylindrical socket formed on the exterior of the gas burner around the gas supply opening. The gas supply conduit includes an opening at an end and a substantially tubular adjoining section proximate to the opening. The adjoining section is configured to mate with the socket and includes a substantially radial protrusion. The socket includes a substantially radial depression for receiving the protrusion. As the gas supply conduit is connected with the gas burner to establish fluid communication at the gas supply opening, the protrusion is engaged in the depression thereby aligning the adjoining section in a predetermined manner about the socket and restricting rotational movement of the adjoining section about the socket.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: May 5, 2015
    Assignee: Electrolux Home Products, Inc.
    Inventor: Michael Padgett
  • Patent number: 9022779
    Abstract: The finding concerns a multi-gas burner head with sucked or blown air, from which the mixture of fuel gas and comburent air comes out and the combustion occurs. Such a head is made from a metallic sheet in which there is at least one row of aligned slits (2), substantially rectangular-shaped; such a sheet is folded so as to have a series of flat flaps (3) in succession, each of the slits being arranged so as to be closed like a “sandwich” between two flat portions of the sheet, once the flaps of the structure are mutually compressed. The gas mixture is intended to pass from the bottom (5) of the flaps and then through the slits and finally to come out at two side by side crests (6) of the structure where the combustion occurs.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: May 5, 2015
    Inventor: Aldo Polidoro
  • Patent number: 9017067
    Abstract: A premix burner arrangement for safely oxygen-enriching a premix air-fuel combustion system is disclosed. In the disclosed burner arrangement, a first conduit is arranged and disposed to provide a first gas stream. The first gas stream is a self-reactive or self-flammable premixture comprising air and a combustible gas. At least one second conduit is arranged and disposed to provide a second gas stream circumferentially around the first gas stream. The second gas stream includes oxygen. The premix burner arrangement is configured to combust or react the first stream at a temperature at least 1000° F. greater than the temperature of the second stream. A method and combustion system including the premix burner arrangement are also disclosed.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: April 28, 2015
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Jin Cao, Aleksandar Georgi Slavejkov, Shailesh Pradeep Gangoli, Jeffrey D. Cole
  • Patent number: 9004913
    Abstract: A gas burner, which is particularly suitable for flame treatment of substrates having large surfaces, e.g. for coating such surfaces in a combustion chemical vapor deposition (CCVD) process, includes a burner body with a gas supply connection and a nozzle plate, wherein the burner body and the nozzle plate constitute together a gas plenum and the nozzle plate constitutes a perforated wall section of the plenum. The nozzle plate includes a large number of nozzles extending from a plenum side to a flame side of the nozzle plate and it is made of a plurality of sheets which are arranged in a stack and extend substantially perpendicular or substantially parallel to the nozzle extension. The sheets include through openings, wherein the through openings of all sheets are at least partly aligned with each other, or they have a comb-like form.
    Type: Grant
    Filed: January 20, 2009
    Date of Patent: April 14, 2015
    Assignee: Tetral Laval Holdings & Finance S.A.
    Inventors: Gil Rochat, Pierre Fayet, Thomas Richter, Bernhard Zobel
  • Patent number: 8998605
    Abstract: A burner insert for use with a burner is provided. The burner insert includes a cylindrical body member having an inlet end and an outlet end. The cylindrical body includes a central passage and a plurality of openings disposed about the central passage. One or more fins are axially disposed within the central passage. A plurality of rib members are coupled to the body, each of the plurality of rib members axially disposed within one of the plurality of openings.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: April 7, 2015
    Assignee: Carrier Corporation
    Inventors: Fabio P. Bertolotti, Ninev Karl Zia
  • Publication number: 20150086934
    Abstract: A fuel-fired furnace incorporates specially designed fuel/air mixing and combustion structures. The fuel/air mixing structure is of a mixing sound-attenuating design and comprises a venturi having a perforated sidewall portion and being surrounded by a noise-damping housing chamber communicating with the interior of the venturi via its sidewall perforations. During use of the mixing structure, air is flowed through the venturi in a swirling pattern while fuel is transversely injected internally against the swirling air. The combustion structure comprises a burner box housing into which the fuel/air mixture is flowed, combusted, and then discharged as hot combustion gas into and through the heat exchanger tubes. The fuel/air mixture entering the burner box housing initially passes through a non-uniformly perforated diffuser plate functioning to substantially alter in a predetermined manner the relative combustion gas flow rates through the heat exchanger tubes.
    Type: Application
    Filed: November 19, 2013
    Publication date: March 26, 2015
    Applicant: Rheem Manufacturing Company
    Inventors: Amin Akbarimonfared, Timothy J. Shellenberger, Robert Steven Neihouse, Scott Alan Willbanks, Darryl Farley, Nathan Taylor Whalen, Shawn Allan Reed
  • Patent number: 8979525
    Abstract: The invention relates to a streamlined body for influencing the flow dynamics of a fluid, wherein the streamlined body at least partly corresponds to a rotationally symmetrical airfoil. A streamlined body of this kind can be used in a number of ways, for example as an impact member, as a flow regulator or as a heat exchanger. It also evens out and accelerates flows. It is used to particular advantage in a mixing and reaction chamber for burning fuels.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: March 17, 2015
    Assignee: Brambel Trading Internacional LDS
    Inventors: Franz Josef Staffler, Vincenzo Branzi
  • Publication number: 20150068437
    Abstract: A burner has a fuel/oxidant nozzles and a pair of dynamical lances spaced on either side thereof that inject a jet of fuel and primary oxidant along a fuel injection axis, and jets of secondary oxidant, respectively. Jets of actuating fluid impinge against the jets of secondary oxidant to fluidically angle the jets of secondary oxidant away from the fuel injection axis. The action of the angling away together with staging of the oxidant between primary and secondary oxidant injections allows achievement of distributed combustion conditions.
    Type: Application
    Filed: November 6, 2014
    Publication date: March 12, 2015
    Inventors: Taekyu KANG, Vivek GAUTAM, Rajeev S. PRABHAKAR, Benoit GRAND, Bertrand LEROUX, Magnus MORTBERG, Nicolas DOCQUIER
  • Publication number: 20150072294
    Abstract: A gaseous fuel-oxygen burner is described herein. One device includes a flame zone in which combustion of gaseous fuel and oxygen occurs to form a flame, a coaxial gaseous fuel jet configured to provide the flame zone with gaseous fuel, and a coaxial oxygen jet configured to provide the flame zone with oxygen, wherein the coaxial gaseous fuel jet and the coaxial oxygen jet are separate such that the gaseous fuel from the coaxial gaseous fuel jet and the oxygen from the coaxial oxygen jet do not mix before entering the flame zone.
    Type: Application
    Filed: September 6, 2013
    Publication date: March 12, 2015
    Applicant: Honeywell International Inc.
    Inventors: Curtis Taylor, Christopher S. Eldridge, Brad Patterson, Jayson Perdue, William R. Berkenbush
  • Publication number: 20150072296
    Abstract: A natural draft combustion mixer in which the primary air intake is positioned downstream from the point of fuel introduction and also consists of a heat return port for orifice freeze protection that is located adjacent to the orifice, as well as a removable orifice holder for ease of access to the orifice during maintenance and set-up of a combustion system.
    Type: Application
    Filed: September 9, 2013
    Publication date: March 12, 2015
    Inventors: Robbie Warren Lundstrom, Derek Lloyd Herder
  • Patent number: 8974226
    Abstract: The present invention relates to a method for operating combustion process in a furnace whereby a primary fuel and a secondary fuel are burnt, to an apparatus for injecting liquid oxygen into the furnace and also to the corresponding furnace. The method comprises at least the following steps: the primary fuel and a primary oxidizer are injected into the furnace to create a primary combustion zone, liquid oxygen is injected in as secondary oxidizer such that the secondary fuel combusts with the secondary oxidizer thereby creating a distinct secondary combustion zone. The invention makes it possible for a secondary fuel having a significantly lower calorific value than the primary fuel to be burnt completely in the furnace, such that a product to be produced in the furnace has an improved quality.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: March 10, 2015
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventor: Frank Rheker
  • Publication number: 20150064637
    Abstract: A dual venturi having a tubular part having primary and secondary passageways, wherein a primary gas inlet is provided on the side wall of the primary passageway; a body part, for opening/closing the flow of secondary air by rotating in horizontal plane and vertical plane directions, the horizontal plane direction being the cross-sectional direction of the tubular part and the vertical plane direction being perpendicular to the horizontal plane; a damper part having a damper part-side secondary gas outlet; a driving part, for rotationally driving the damper part in the horizontal and vertical planes; and a secondary gas inlet, which openly connects selectively to the damper part-side secondary gas outlet on the basis of the rotational position of the damper part, and for forming the rotational shaft of the damper part along with the rotational shaft of the driving part.
    Type: Application
    Filed: January 22, 2013
    Publication date: March 5, 2015
    Inventor: Jeong Gi Yu
  • Publication number: 20150064636
    Abstract: Provided is a dual venturi having: a tubular part; a body part, for opening/closing the flow of secondary air by rotating in the horizontal plane and vertical plane directions, the horizontal plane direction being the cross-sectional direction of the tubular part and the vertical plane direction being perpendicular to the horizontal plane; a central passageway, becoming the passageway for primary air; a damper part, and a damper part-side secondary gas outlet; a driving part, for rotationally driving the damper part in the horizontal and vertical planes; a gas inlet-side primary gas outlet connected openly to the damper part-side primary gas outlet; and a gas inlet for introducing gas into the tubular part via the damper part, which openly connects selectively to the damper part-side secondary gas outlet on the basis of the rotational position of the damper part, and for forming the rotational shaft of the damper part along with the rotational shaft of the driving part.
    Type: Application
    Filed: January 21, 2013
    Publication date: March 5, 2015
    Inventor: Jeong Gi Yu
  • Publication number: 20150056563
    Abstract: The present invention relates to a dual venturi for a combustor and, more specifically, to a dual venturi for a combustor which can control, in two stages, the amount of gas and air supplied to a burner provided in a water heater, wherein a motor and a damper are combined in such a manner that the damper is rotated by the driving of the motor, and thus the damper simultaneously opens or closes the inlet for secondary air and gas, thereby efficiently controlling the quantity of heat.
    Type: Application
    Filed: January 18, 2013
    Publication date: February 26, 2015
    Applicant: KYUNGDONG NAVIEN CO., LTD.
    Inventor: Kyeong Joo Kim
  • Publication number: 20150056564
    Abstract: The present invention relates to a dual venturi for a combustion apparatus, and more particularly, to a dual venturi for a combustion apparatus that is capable of effectively controlling calorific power since the amount of gas for a burner provided in a water heater and the amount of supplied air are controlled in two phases, and a motor and a damper are coupled to each other so that the damper opens or blocks inlets for secondary air and the gas at the same time that the damper is rotated by the driving of the motor.
    Type: Application
    Filed: January 18, 2013
    Publication date: February 26, 2015
    Applicant: KYUNGDONG NAVIEN CO., LTD.
    Inventor: Jeong Gi Yu
  • Publication number: 20150050608
    Abstract: Provided is a gas-air mixing device for a combustor which effectively controls the amount of gas and air supplied to a burner provided in a combustor, such as a boiler or a water heater, thus improving the turn-down ratio which leads to increased convenience for using hot water and heat and enhanced durability of the burner. The gas-air mixing device for a combustor comprises: a housing, connected on one side to a turbo fan; a discharge part disposed on one side of the housing and in contact with the turbo fan; first and second air supply parts, provided on the other side of the discharge part and separated by a first partition; first and second gas supply parts, separated by a second partition; and an opening/closing means for controlling the flow of gas and air by opening or blocking the second air supply part and the second gas supply part.
    Type: Application
    Filed: January 16, 2013
    Publication date: February 19, 2015
    Applicant: KYUNGDONG NAVIEN CO., LTD.
    Inventors: Myoung Gee Min, Dae Hyun Kim
  • Publication number: 20150050605
    Abstract: A low NOx burner has a housing that includes a burner head defining a gas manifold and a primary flame zone downstream of the burner head. The burner has a gas inlet for receiving gas. Flow-through air vents are disposed around a center of the burner head and extending through the burner head thereby enabling cold core air to flow from an annular core space upstream of the burner head to the primary flame zone downstream of the burner head. The burner also includes a plurality of premix air vents in fluid communication with the manifold for premixing air and gas within the manifold and for emitting premixed air and gas into the primary flame zone. A plurality of staging pipes extend from the manifold into the primary flame zone for conveying gas into the primary flame zone. The burner includes an ignition device extending into the primary flame zone.
    Type: Application
    Filed: August 13, 2013
    Publication date: February 19, 2015
    Applicant: Haul-All Equipment Ltd.
    Inventors: Sergiu Desi-Seulean, Jerry Ejdrygiewicz, David Neufeldt
  • Patent number: 8956155
    Abstract: A burner assembly for a fireplace, comprising a fuel-metering plate, a fuel-delivery plenum and a dividing plate. The fuel metering plate has tines that form a combed structure in an uppermost portion of the fuel-metering plate, the combed structure extending along a long dimension of the fuel-metering plate. The fuel-delivery plenum has a fuel chamber and the fuel-delivery plenum being coupled to the fuel-metering plate such that the fuel chamber extends along the long dimension of the fuel metering plate. The dividing plate is located between the fuel-metering plate and the fuel-delivery plenum. The dividing plate has a slotted opening that extends along the long dimension of the fuel metering plate, the slotted opening being in fluid communication with individual channels between the tines and with the fuel chamber.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: February 17, 2015
    Assignee: Innovative Hearth Products LLC
    Inventors: Joseph A. Benedetti, Kenneth D. Johns, Michael S. Pennington, Chad R. Zimmerman
  • Patent number: 8951040
    Abstract: A gas burner (10) comprising a bowl-shaped base body (12), a burner crown (14) arranged on the base body (12) and an upper cap (16) arranged on the burner crown (14), wherein a plurality of flame ports (34) is provided to let out a gas-air mixture towards to a recipient (36) to be heated, wherein the flame ports (34) are formed in such a manner that the gas-air mixture leaves the flame ports (34) in an essentially vertical direction.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: February 10, 2015
    Assignee: Electrolux Home Products Corporation N.V.
    Inventor: Fabio Rasi
  • Patent number: 8939759
    Abstract: A tubular burner has: a mixing tube inclusive of an inlet port, a venturi section, and a tapered tube section; and a flame hole member having a plurality of flame holes and being adapted to be fitted into a front end region of the mixing tube. A flame hole member has a front plate and a rear plate, both of sheet metal make. The front plate has a first flame hole in the central portion of the front plate, and a plurality of second flame holes located around a periphery of the first flame hole. The rear plate has a first ventilation hole in the center thereof so as to lie opposite to the first flame hole, and a plurality of second ventilation holes of smaller diameter than the first ventilation hole.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: January 27, 2015
    Assignee: Rinnai Corporation
    Inventor: Keisuke Mori
  • 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
  • Publication number: 20150010359
    Abstract: A thermal conductive heating and desorption system is disclosed, which provides superior results to other systems for the removal of pollutants from soil, groundwater and other affected medias using a novel enhanced gas fired recuperative heater and oxidation system. Pollutants in the affected, heated media are partially destroyed by hydrolysis, pyrolysis and/or oxidation processes. Remaining pollutants are extracted from the affected media, and pollutant off gas is then introduced into the heater system where it is both thermally and catalytically oxidized. Heat from combusted fuel and pollutant off gas in the heater system is used to preheat incoming combustion air through a recuperative heat exchanger, enabling significant reductions in fuel usage by the heater system. Combusted fuel and off gas discharged from the heater system may be further treated to achieve specified discharge standards.
    Type: Application
    Filed: February 22, 2013
    Publication date: January 8, 2015
    Inventor: Grant Geckeler
  • Publication number: 20150000343
    Abstract: A submerged burner for a glass- or rock-melting furnace, including a plurality of in-line injectors, each injector including a cylinder-shaped mixing chamber, with an ejection orifice, a fuel-supply duct and an oxidant-supply duct opening into the mixing chamber at the cylinder jacket in a direction causing a tangential flow of the fuel and of the oxidant relative to the cylinder jacket, and a duct system making it possible for a coolant to flow inside the burner, and, preferably on either side of the alignment of injectors, placed parallel to and all along the latter, solid metal sides rising from the injectors, and protective partitions situated on the top of the solid metal sides.
    Type: Application
    Filed: February 5, 2013
    Publication date: January 1, 2015
    Applicant: Saint-Gobain Isover
    Inventors: Yannick Lefrere, Julien Marie, David Galley, Sebastien Chesnel, Frederic Lopepe, Oleg Boulanov
  • Publication number: 20150000344
    Abstract: Apparatus includes a first and second conduits configured to form an annulus between them. An adjustable structure includes a body having an upper surface, a lower surface, and a circumferential surface abutting a portion of the internal surface of the second conduit. The structure is adjustable axially in relation to and removably attached to the first conduit via a hub. The hub defines a central passage for fuel or oxidant. The body has one or more non-central through passages configured such that flow of an oxidant or fuel therethrough causes the fuel or oxidant to intersect flow of fuel or oxidant exiting from the central passage in a region above the upper surface of the body.
    Type: Application
    Filed: September 15, 2014
    Publication date: January 1, 2015
    Inventor: Mark William Charbonneau
  • Patent number: 8919337
    Abstract: A system having a pre-mix burner manifold in a housing that may permit air to be drawn through slots in the housing to flow over an external surface of the manifold. The flow of air may maintain a temperature of the manifold lower than a temperature that the manifold might have without the flow. The manifold may be attached to a burner and heat exchanger.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: December 30, 2014
    Assignee: Honeywell International Inc.
    Inventors: Michael W. Schultz, Douglas Perry, James E. Erickson
  • Patent number: 8915731
    Abstract: A burner has a fuel/oxidant nozzles and a pair of dynamical lances spaced on either side thereof that inject a jet of fuel and primary oxidant along a fuel injection axis, and jets of secondary oxidant, respectively. Jets of actuating fluid impinge against the jets of secondary oxidant to fluidically angle the jets of secondary oxidant away from the fuel injection axis. The action of the angling away together with staging of the oxidant between primary and secondary oxidant injections allows achievement of distributed combustion conditions.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: December 23, 2014
    Assignees: L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude, American Air Liquide, Inc., Air Liquide Advanced Technologies, U.S. LLC
    Inventors: Taekyu Kang, Vivek Gautam, Rajeev S. Prabhakar, Benoit Grand, Bertrand Leroux, Magnus Mortberg, Nicolas Docquier