Including Means Feeding Air Axially Spaced Points Of The Flame Patents (Class 431/351)
  • Patent number: 9879861
    Abstract: A gas turbine engine variable porosity combustor liner has a laminated alloy structure. The laminated alloy structure has combustion chamber facing holes on one side and cooling plenum facing holes on a radially opposite side. The combustion chamber facing holes are in fluid communication with the cooling plenum facing holes via axially and circumferentially extending flow passages sandwiched between metal alloy sheets of the laminated alloy structure. Porous zones having respective different cooling flow amounts are formed in the laminated allow structure based on at least one of an arrangement of the combustion chamber facing holes, an arrangement of the cooling plenum facing holes, and an arrangement of the flow passages.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: January 30, 2018
    Assignees: Rolls-Royce Corporation, Rolls-Royce North American Technologies, Inc.
    Inventors: Donald E. Pinnick, Kenneth W. Froemming, Bruce E. Varney, James C. Loebig, Todd Taylor
  • Patent number: 9759427
    Abstract: An interface assembly for a combustor includes an interface housing having a channel defined by a forward wall and at least one aft wall segment, the aft wall segment operatively coupled to an aft flange of a flow sleeve. Also included is a piston ring fittingly disposed in the channel.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: September 12, 2017
    Assignee: General Electric Company
    Inventors: Kyle Lee Kidder, Donald Timothy Lemon, Stephen Gerard Pope
  • Patent number: 9719684
    Abstract: A gas turbine engine variable porosity combustor liner has a laminated alloy structure. The laminated alloy structure has combustion chamber facing holes on one side and cooling plenum facing holes on a radially opposite side. The combustion chamber facing holes are in fluid communication with the cooling plenum facing holes via axially and circumferentially extending flow passages sandwiched between metal alloy sheets of the laminated alloy structure. Porous zones having respective different cooling flow amounts are formed in the laminated alloy structure based on at least one of an arrangement of the combustion chamber facing holes, an arrangement of the cooling plenum facing holes, and an arrangement of the flow passages.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: August 1, 2017
    Assignees: Rolls-Royce North America Technologies, Inc., Rolls-Royce Corporation
    Inventors: Donald E. Pinnick, Kenneth W. Froemming, Bruce E. Varney
  • Patent number: 9121609
    Abstract: Disclosed is a combustor including a baffle plate having at least one through baffle hole and at least one fuel nozzle extending through the at least one baffle hole. At least one shroud is secured to the baffle plate and includes at least one piston ring disposed at the shroud. The at least one piston ring is configured to meter a flow of diluent between the at least one shroud and the at least one fuel nozzle. Further disclosed is a method for providing diluent to a combustor including providing a piston ring gap defined by at least one piston ring disposed at a baffle plate and a fuel nozzle extending through a through hole in the baffle plate. The diluent is flowed through the piston ring gap toward at least one airflow hole in the fuel nozzle.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: September 1, 2015
    Assignee: General Electric Company
    Inventors: Jesse Ellis Barton, Jonathan Dwight Berry, Mark Allan Hadley, Glenn David Nelson, Robert Joseph Rohrssen, John Drake Vanselow
  • Patent number: 9039408
    Abstract: Includes a low flow-rate region (R2) that is disposed on an upstream side of a combustion region (R1) within a second pipe (2), and that has a relatively slow flow-rate of combustion gas (G1) within the second pipe, and a flame kernel formation unit (3a) is disposed in the low flow-rate region.
    Type: Grant
    Filed: December 9, 2009
    Date of Patent: May 26, 2015
    Assignee: IHI CORPORATION
    Inventors: Soichiro Kato, Taku Mizutani, Katsuyoshi Takahashi
  • Patent number: 8986002
    Abstract: A combustor apparatus is provided, comprising a mixing arrangement for mixing a carbonaceous fuel with enriched oxygen and a working fluid to form a fuel mixture. A combustion chamber is at least partially defined by a porous perimetric transpiration member, at least partially surrounded by a pressure containment member. The combustion chamber has longitudinally spaced apart inlet and outlet portions. The fuel mixture is received by the inlet portion for combustion within the combustion chamber at a combustion temperature to form a combustion product. The combustion chamber directs the combustion product longitudinally toward the outlet portion.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: March 24, 2015
    Assignees: 8 Rivers Capital, LLC, Palmer Labs, LLC
    Inventors: Miles R. Palmer, Rodney John Allam, Glenn William Brown, Jr., Jeremy Eron Fetvedt
  • Patent number: 8813739
    Abstract: A burner assembly is provided. The burner assembly includes a burner pot, a combustion mat, a pot cover, and a burner frame. The burner pot receives gas and air. A mixed gas of the gas and air supplied into the burner pot is burned in the combustion. The pot cover is disposed between the burner pot and the combustion mat to support the combustion mat. The burner frame guides combustion gas generated due to the combustion of the mixed gas in the combustion mat.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: August 26, 2014
    Assignee: LG Electronics Inc.
    Inventors: Jung-Ju Kwon, In-Sik Min, Sang-Min Lyu, Seong-Sig Cho
  • Patent number: 8727768
    Abstract: A burner includes a generally cylindrical casing (1) and a burner head (2) mounted within the casing, the burner head including one or more vanes (9) rotatably mounted on the head and rotatable about the head to sweep through a region between the burner head (2) and the casing (1). The vanes (9) each include one or more gas outlets for introducing gas into an air flow through the region.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: May 20, 2014
    Assignee: Limpsfield Combustion Engineering Co. Limited
    Inventor: Brendan Kemp
  • Patent number: 8622737
    Abstract: A flame tube for a liquid fuel burner is disclosed. The liquid fuel burner includes a fuel atomizer directing atomized fuel into the flame tube and an igniter disposed within the flame tube to ignite the atomized fuel. The flame tube comprises an outer wall and an inner wall disposed about the outer wall to define an air passage therebetween. At a discharge end of the flame tube, the outer and inner walls are conjoined to form an annular surface, the annular surface being perforated. Preferably, the annular surface is perforated in an evenly distributed pattern.
    Type: Grant
    Filed: July 16, 2008
    Date of Patent: January 7, 2014
    Inventor: Robert S. Babington
  • Patent number: 8591222
    Abstract: A gas-fired air conditioning furnace has a cavity burner configured to combust an air-fuel mixture at least partially within an interior space of the cavity burner. A method of operating a gas-fired furnace by flowing an air-fuel mixture into a cavity burner through a perforated wall of the cavity burner, combusting at least a portion of the air-fuel mixture within an interior space of the cavity burner, and flowing at least partially combusted air-fuel mixture into a heat exchanger. A gas-fired air conditioning device has a cavity burner that has a cylindrically shaped body and a cap on a first end of the body, each of the body and the cap being perforated. The device has a cylindrically shaped heat exchanger inlet tube and the cavity burner is at least partially concentrically received within the heat exchanger inlet tube.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: November 26, 2013
    Assignee: Trane International, Inc.
    Inventor: Lester D. Sherrow
  • Patent number: 8517721
    Abstract: A burner for fabricating an optical fiber preform, which can suppress the adhesion and deposition of glass particles to the front end of the burner without enlarging the burner diameter, is provided. The burner has a first tube, a second tube and a third tube coaxially arranged and define a glass raw material gas port, a sealing gas port, and a burnable gas port by the front end portions thereof, and a plurality of small diameter nozzles arranged between the second tube and the third tube, each of the nozzles arranged on a concentric circle relative to the glass raw material gas port and defines a combustion assisting gas port by the front end portion thereof, the front end portion of the second tube protrudes ahead of that of the first tube, and the front end portion of the third tube protrudes ahead of those of the second tube and each of the nozzles.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: August 27, 2013
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventor: Makoto Yoshida
  • Patent number: 8490398
    Abstract: The disclosure relates to a burner for a single combustion chamber or first combustion chamber of a gas turbine, with an injection device for the introduction of at least one gaseous and/or liquid fuel into the burner, wherein the injection device has at least one body which is arranged in the burner with at least one nozzle for introducing the at least one fuel into the burner, wherein the at least one body is located in a first section of the burner with a first cross-sectional area at a leading edge of the at least one body with reference to a main flow direction prevailing in the burner, wherein downstream of said body a mixing zone is located with a second cross-sectional area, and at and/or downstream of said body the cross-sectional area is reduced, such that the first cross-sectional area is larger than the second cross-sectional area.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: July 23, 2013
    Assignee: Alstom Technology Ltd.
    Inventors: Madhavan Poyyapakkam, Anton Winkler, Khawar Syed, Andrea Ciani
  • Patent number: 8459986
    Abstract: A burner at which fuel cannot be combusted with air as the only source of oxygen for combustion in a stable flame at the burner when the feed rate of the fuel is too low, when the fuel is fed at too high an air-to-fuel mass ratio, when the fuel contains too high an amount of inert matter, or when the specific energy content of the fuel is too low, is modified by supplying oxidant containing more than 21 vol. % oxygen into the base of a flame at the burner, whereupon such fuels can be combusted at the burner.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: June 11, 2013
    Assignee: Praxair Technology, Inc.
    Inventor: Stefan E. F. Laux
  • Patent number: 8444411
    Abstract: An incinerator (20) for disposing of boil-off gas on an LNG carrier comprises a combustion section (40) wherein the boil-off gas admitted at (42) is burned in the presence of combustion air admitted at (44), producing a flame (46) and combustion products (C). Dilution air (A) is delivered into the combustion section (40) and mixed with the combustion products (C) to produce a diluted mixture (M). The combustion section (40) has an inner wall (48) and an outer wall (50) together defining a first passage (52) through which the dilution air (A) is passed before being mixed with the combustion products (C), whereby the dilution air A cools the combustion section (40). The dilution air A in the first passage (52) also provides a thermally insulting layer limiting radial heat transmission from the combustion section (40). A proportion (AP) of the dilution air is mixed directly with the combustion products (C).
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: May 21, 2013
    Inventors: Simon Mark O'Connor, Richard James Price, Nigel Peter Webley, Mark Boss
  • Patent number: 8408897
    Abstract: The present invention provides a gas burner (10) including: a distributor means (50) having at least one distribution chamber to distribute an air gas mixture around said distributor (50), said burner (10) including a plurality of flame ports (70) through which said gas mixture can pass and be ignited; at least one injector (39) associated with said distributor (50), said at least one injector (39) being positioned to inject gas into said at least distribution chamber via a venture formed of a vertically directed passage and transition port (64) and at least one venturi extension extending away from said transition port (64).
    Type: Grant
    Filed: February 1, 2005
    Date of Patent: April 2, 2013
    Assignee: Aktiebolaget Electrolux
    Inventors: Carlo Antonio Rossi, Marco Rossi, Steven McIntyre, Keith Joseph Borg, George Brock-Nannestad
  • Patent number: 8393891
    Abstract: A combustion nozzle for use in a turbine. The combustion nozzle may include a center body and a cone extending from the center body. The cone may include a number of apertures positioned therein.
    Type: Grant
    Filed: September 18, 2006
    Date of Patent: March 12, 2013
    Assignee: General Electric Company
    Inventors: Gregory Allen Boardman, Thomas Edward Johnson
  • Patent number: 8376733
    Abstract: A vented, gas-fired air heater especially designed for temporary heating applications includes an improved burner design providing effective air and gas mixing and efficient burning in the combustion chamber. Highly efficient heat exchanger including corrugated heat exchanger panels provides enhanced heat transfer characteristics.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: February 19, 2013
    Assignee: Haul-All Equipment Ltd.
    Inventors: Sergiu Desi-Seulean, David Wiebe-Neufeldt
  • Publication number: 20120322013
    Abstract: A combustor housing includes an inlet cover plate having a central inlet configured to receive a supply of one of a high BTU content fuel or air and at least one radially-spaced, peripheral fuel inlet configured to receive a supply of a low BTU content fuel and an outlet cover plate having at least one radially-spaced, peripheral fuel outlet. The combustor housing also includes a peripheral sidewall joining the inlet cover and the outlet cover and enclosing a plenum, the at least one peripheral fuel inlet opening through the inlet cover plate into the plenum and the at least one fuel outlet opening from the plenum through the outlet cover plate. The central inlet opens into at least one conduit which extends away from the central inlet and opens into at least one high BTU content fuel conduit or air supply conduit that is axially aligned with the at least one fuel outlet.
    Type: Application
    Filed: June 15, 2012
    Publication date: December 20, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Joel Meador Hall, Sergey Adolfovich Oskin, Scott Robert Simmons
  • Publication number: 20120308947
    Abstract: A combustor having a pressure feed is provided and includes an outer vessel, an intermediate vessel disposed within the outer vessel to form an outer annulus, an inner vessel disposed within the intermediate vessel to form an inner annulus between the intermediate and inner vessels, by which upstream portions of fuel nozzles disposed within the inner vessel are fed, and an internal volume within the inner vessel about downstream portions of the fuel nozzles and a tubular assembly by which the outer annulus and the internal volume are communicative.
    Type: Application
    Filed: June 6, 2011
    Publication date: December 6, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Patrick Benedict Melton, David Leach, Robert Joseph Rohrssen, Roy Marshall Washam
  • Publication number: 20120276490
    Abstract: The burner (1) according to the invention comprises a main body (10) provided with an operating cavity (11) open at least on a first side. The burner also comprises first feed means (20) arranged to introduce a flow of a first reagent (for example combustion air) into said cavity and second feed means (31) are arranged to introduce a flow of a second reagent (for example fuel) into the same operating cavity. The first means are configured so as to introduce the first reagent according to a tangential direction, while the second means are configured to introduce the second reagent according to a direction parallel to the direction in which the cavity extends. According to the invention the operating cavity comprises a first portion between the intake position of the first reagent and the intake position of the second reagent. This first portion defines a stabilization chamber of the flow of the first reagent.
    Type: Application
    Filed: December 30, 2009
    Publication date: November 1, 2012
    Applicant: HYSYTECH S. R. L.
    Inventors: Massimiliano Antonini, Andres Saldivia, Guido Saracco, Corrado Farina, Simone Solaro, Marco Mori, Massimiliano Anastasi
  • Patent number: 8261556
    Abstract: A device for guiding an element in an orifice in a wall of a turbomachine combustion chamber is disclosed. The device includes a coaxial ring and bushing mounted one inside the other. The bushing includes two coaxial annular parts that are fastened to each other by welding and that define a groove for guiding a rim of the ring. Welding zones between the parts of the bushing are situated away from the path of the rim of the ring when moved along a privileged transverse direction of ring movement relative to the bushing when the combustion chamber is in operation.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: September 11, 2012
    Assignee: SNECMA
    Inventors: Patrick Audin, Florian Andre Francois Bessagnet, Pierre Pascal Sablayrolles, Guillaume Sevi
  • Patent number: 8246343
    Abstract: In one embodiment, a method for generating heat energy includes injecting a stream having a concentration of at least 50% oxygen (O2 stream) into a primary gas stream through a mixer, the mixer discharging the O2 stream as two or more spaced jets traversing the primary stream, thereby enriching the primary gas stream. The method further includes mixing fuel with the enriched primary gas stream, thereby forming a fuel stream; and combusting the fuel stream, thereby forming a flue gas stream.
    Type: Grant
    Filed: November 26, 2007
    Date of Patent: August 21, 2012
    Assignee: L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: M. Usman Ghani, Florian Gautier, Rajani K. Varagani, Susie Levesque, Bernard Labegorre, Frederic Camy-Peyret, Sylvain Grillon, Pavol Pranda
  • Patent number: 8215950
    Abstract: A burner tube to provide combustible materials to a combustor is provided and includes an annular shroud and a center body, having a cavity defined therein, disposed within the annular shroud to form an annular passage, the annular passage being communicable with a combustion zone of the combustor at an aft portion thereof and including a fore portion in which fuel is injected into the annular passage. The center body includes a surface having a passage defined therein through which air is to be supplied to the annular passage from the cavity at a position, which is downstream from the fuel injection and upstream from the combustion zone. Also provided is a contouring of the centerbody.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: July 10, 2012
    Assignee: Genral Electric Company
    Inventors: Ramanand Singh, Atul Kumar Vij, Chetan Babu Velkur
  • Patent number: 8186996
    Abstract: Provided is a combustion apparatus capable of preventing a heat loss from a combustion cabinet without deteriorating a combustion performance thereof. According to the present invention, a part of an inner side surface of a combustion cabinet (1), which encloses a combustion chamber where a mixture gas erupted from a combustion plate (22) is combusted, is covered with a cover (7) made of an insulation material; and the cover (7) is provided with a concave portion (7a) at an outer side surface thereof having contact with the inner side surface of the combustion cabinet (1), and an insulation air layer (7b) is defined by the concave portion (7a).
    Type: Grant
    Filed: March 3, 2009
    Date of Patent: May 29, 2012
    Assignee: Rinnai Corporation
    Inventor: Takashi Ojiro
  • Patent number: 8172567
    Abstract: A method for providing uniform heat distribution within a furnace as well as decreasing the amount of NOx in the combustion products, when operating an industrial furnace having at least one conventional burner using air as the oxidant. At least one lance is connected with the furnace, and an oxidant including oxygen gas is flowed into the furnace through the lance to impinge against a flame issuing from the burner at a certain impingement point. The amount of oxygen supplied by the air supply to the burner together with the amount of oxidant issuing from the lance corresponds with the stoichiometric amount for a fuel supplied to the burner. At least 50% of the supplied oxygen for combustion is supplied through the lancing of oxidant, and the oxidant is flowed into the furnace through the lance at a velocity of at least 200 m/s.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: May 8, 2012
    Assignee: AGA AB
    Inventor: Johannes Lodin
  • Patent number: 8147240
    Abstract: A gas burner assembly includes a first sheet, a second sheet, and a conduit. The first sheet has an inner face, an outer face, an upper portion, and a lower portion. The second sheet also has an inner face, an outer face, an upper portion and a lower portion. The first and second sheets are secured relative to one another such that the first and second sheets are separated by a gap that defines a manifold between the inner faces of the first and second sheets with an elongate opening between the upper portions of the first and second sheets, the opening forming an outlet from the manifold. The conduit is in communication with the manifold, the conduit being adapted for connection to a source of gas.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: April 3, 2012
    Assignee: HNI Technologies Inc.
    Inventors: David C. Lyons, Travis P. Betcher, Louis L. Mead
  • Patent number: 8096803
    Abstract: Apparatus for enhancing combustion of an undesired chemical to minimize the formation of smoke during operation of a flare stack for the discharge of a flare feedstream includes a plurality of high-pressure air nozzles spaced apart below and around the periphery of the stack outlet. Each nozzle is directed toward the stack outlet and in the direction of the feedstream's movement. High-pressure air from the nozzles forms a plurality of high-velocity air jets to produce a moving air mass that draws additional atmospheric air into the air mass moving toward the stack outlet to enhance combustion of the flare feedstream. Analytical means determine the stoichiometric oxygen requirements, and an air-flow valve controls the flow rate of the high-pressure air to the nozzles.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: January 17, 2012
    Assignee: Saudi Arabian Oil Company
    Inventors: Mazen Mashhour, M. Rashid Khan
  • Publication number: 20110306001
    Abstract: A burner includes a generally cylindrical casing (1) and a burner head (2) mounted within the casing, the burner head including one or more vanes (9) rotatably mounted on the head and rotatable about the head to sweep through a region between the burner head (2) and the casing (1). The vanes (9) each include one or more gas outlets for introducing gas into an air flow through the region.
    Type: Application
    Filed: December 17, 2008
    Publication date: December 15, 2011
    Applicant: LIMPSFIELD COMBUSTION ENGINEERING CO. LIMITED
    Inventor: Brendan Kemp
  • Patent number: 8065881
    Abstract: A transition duct for routing a gas flow from a combustor to the first stage of a turbine section in a combustion turbine engine is disclosed. The transition duct may have an internal passage extending between an inlet to an outlet. An axis of the transition duct body may be generally linear such that gases expelled from the transition duct body flow in a proper direction into the downstream turbine blades. The linear transition duct may include an outlet with exhaust mouths that are configured such that sides of the transition duct are coplanar with adjacent transition ducts, thereby eliminating destructive turbulence between adjacent, linear transition ducts.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: November 29, 2011
    Assignee: Siemens Energy, Inc.
    Inventors: Richard Charron, Gary Snyder
  • Patent number: 8011360
    Abstract: A vented, gas-fired air heater especially designed for temporary heating applications includes an improved burner design providing effective air and gas mixing and efficient burning in the combustion chamber. Highly efficient heat exchanger including corrugated heat exchanger panels provides enhanced heat transfer characteristics.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: September 6, 2011
    Assignee: Haul-All Equipment Ltd.
    Inventors: Sergiu Desi-Seulean, David Wiebe-Neufeldt
  • Patent number: 7997896
    Abstract: A premix burner with staged liquid fuel supply is described having at least two partial cone shells which on the radial side form the boundary of a swirl chamber which axialwards conically widens, which partial cone shells are arranged in a partially overlapping manner, the center axes of the partial cone shells of which extend with offset effect in relation to each another, and the mutually overlapping partial cone shell sections of which enclose in each case an air inlet slot which extends tangentially to the swirl chamber, with a burner lance which projects axialwards into the swirl chamber, which lance provides means for feed of liquid fuel into the swirl chamber, and also with further means for feed of liquid fuel which are provided in the region of the air inlet slots.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: August 16, 2011
    Assignee: Alstom Technology Ltd
    Inventors: Peter Flohr, Gijsbertus Oomens, Martin Zajadatz
  • Patent number: 7975486
    Abstract: The invention relates to a burner for premix-type combustion having a cavity which has at least one tangential air inlet slot for the supply of a combustion air flow, a device for the injection of fuel into the cavity which is provided in the region of a burner axis, and a device for the injection of premix fuel into the air inlet slots which is provided centrally in the inflow region of the combustion air flow. The device for the injection of premix fuel into the air inlet slots has at least one fuel supply, the fuel outlet openings of which are arranged in such a way that the premix fuel is introduced into the combustion air flow on both sides of the at least one fuel supply related to a cross-sectional plane at right angles to the burner axis.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: July 12, 2011
    Assignee: Alstom Technology Ltd
    Inventors: Adnan Eroglu, Majed Toqan
  • Patent number: 7914279
    Abstract: Apparatus and methods for improved combustion of oxygen and a mixture of a non-gaseous fuel, which includes providing: 1) a source of a mixture of non-gaseous fuel and conveying gas; 2) a source of oxygen; 3) a burner operatively associated with a combustion chamber; 4) a fuel duct in fluid communication with the source of mixed non-gaseous fuel and conveying gas; 5) a tubular oxygen lance fluidly communicating with the source of oxygen; and 6) at least two injection elements in fluid communication with the source of oxygen. The fuel duct includes a portion that extends along an axis towards the burner. The lance is disposed along the axis and has a diameter D. The injection elements are configured to inject oxygen into, and mix therewith, a flow of the mixture upstream of, or at, the burner. At least one of the injection elements receives oxygen from the lance. The injection elements are spaced apart by a distance X, which is greater than the length of diameter D.
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: March 29, 2011
    Assignee: American Air Liquide, Inc.
    Inventors: M. Usman Ghani, Florian Gautier, Fabienne Chatel-Pelage, Frederick W. Giacobbe, Pavol Pranda, Nicolas Perrin
  • Patent number: 7896645
    Abstract: A system when installed in-line with a pollution source provides reduction and/or complete combustion of harmful emissions generated there from. Such emissions including (but not limited to) compounds such as oxides of nitrogen, hydrocarbons, carbon monoxide, odors, organic and inorganic particulates. The pollution source can be of any type, such as smoke from a smokestack, engine exhaust, etc. The re-burner system is of very simple construction, is extremely energy efficient and does not require any moving parts or maintenance, respectively.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: March 1, 2011
    Assignee: Universal Cleanair Technologies
    Inventor: Ronald Everett Loving
  • Patent number: 7896646
    Abstract: A premixing burner is disclosed for operating a combustion chamber with a liquid and/or gaseous fuel, with a swirl generator for a combustion inflow air stream for forming a swirl flow, and with injection of fuel into the swirl flow. The swirl generator is adjacent to the combustion chamber indirectly via a mixing zone or directly, in each case via a burner outlet, a cross-sectional widening at the burner outlet being provided which, is discontinuous in the flow direction of the swirl flow and through which the swirl flow bursts open so as to form a backflow zone. A contour locally narrowing the flow cross section of the swirl generator or of the mixing zone in the flow direction can be provided upstream of the burner outlet.
    Type: Grant
    Filed: January 12, 2005
    Date of Patent: March 1, 2011
    Assignee: Alstom Technology Ltd
    Inventors: Peter Flohr, Christian Oliver Paschereit
  • Patent number: 7878798
    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: June 14, 2006
    Date of Patent: February 1, 2011
    Assignee: John Zink Company, LLC
    Inventors: Roger L. Poe, James Wilkins, Michael G. Claxton
  • Patent number: 7878799
    Abstract: What are described are a multiple burner arrangement and a method for operating such a multiple burner arrangement with a multiplicity of individual burners which are designed as premix burners and which serve for firing a combustion chamber of a thermal engine and each have a swirl space into which combustion supply air and fuel can be introduced so as to form a swirl flow, the swirl flow forming downstream of the premix burner, within the combustion chamber, a backflow zone in which a burner flame is formed.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: February 1, 2011
    Assignee: Alstom Technology Ltd
    Inventors: Peter Flohr, Christian Joerg Motz, Majed Toqan, Martin Zajadatz
  • Patent number: 7874835
    Abstract: A burner assembly for a radiant tube heater having an air duct portion for passage of combustion air to a radiant tube portion includes a mixing cup for mixing combustible gas and air and delivering the mixture to the tube. This cup has an inlet portion and a larger cylindrical outlet portion. Air inlet holes are formed in an upstream end wall of the outlet portion and air ports are formed in a peripheral wall of the inlet portion. An air diverter mounted at an upstream end of the inlet portion has a set of blade which divert a portion of the air through the ports for initial mixing with the gas while a second portion of the air flows through the inlet holes providing additional primary air for mixing. An airflow restricting plate can be mounted on the cup so as to extend circumferentially around the cup.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: January 25, 2011
    Assignee: Schwank Ltd.
    Inventors: Bernd Schwank, Samer Hassan, Fariborz Farshad
  • Publication number: 20100287937
    Abstract: A flame-holding control method in a gas turbine having a combustor can and a fuel nozzle disposed in the combustor can. The method can include performing a first scheduled injection of a diluent stream into the nozzle, checking to see if a time period has exceeded a time threshold and in response to the time period being greater than that the time threshold, performing a second scheduled injection of the diluent stream into the nozzle.
    Type: Application
    Filed: May 12, 2009
    Publication date: November 18, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Robert Thomas Thatcher, Joel Meador Hall, Andrew Mitchell Rodwell
  • Patent number: 7789659
    Abstract: A primary flow of the burner air stream is slowed relatively to a secondary flow of the air stream. Fuel is injected at a lower rate into the primary flow, which generates a more stable flame, and fuel is injected at a higher rate into the secondary flow, which generates a stronger flame. If the stronger flame is blown out, fuel in the secondary flow can be lit by the flame from the primary flow.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: September 7, 2010
    Assignee: 9131-9277 Quebec Inc.
    Inventor: Gilles Godon
  • Patent number: 7780436
    Abstract: A combustion method and apparatus which produce a hybrid flame for heating metals and metal alloys, which hybrid flame has the characteristic of having an oxidant-lean portion proximate the metal or metal alloy and having an oxidant-rich portion disposed above the oxidant lean portion. This hybrid flame is produced by introducing fuel and primary combustion oxidant into the furnace chamber containing the metal or metal alloy in a substoichiometric ratio to produce a fuel-rich flame and by introducing a secondary combustion oxidant into the furnace chamber above the fuel-rich flame in a manner whereby mixing of the secondary combustion oxidant with the fuel-rich flame is delayed for a portion of the length of the flame.
    Type: Grant
    Filed: June 1, 2005
    Date of Patent: August 24, 2010
    Assignee: Gas Technology Institute
    Inventors: Vasilios Soupos, Serguei Zelepouga, David M. Rue, Hamid A. Abbasi
  • Patent number: 7658609
    Abstract: An internal combustion burner, especially for attenuation of mineral fibers, and including a combustion chamber, into which at least one duct for feeding fuel and oxidizer opens, and provided with an expansion orifice. The combustion chamber is provided with at least one flame stabilizing element, the geometry of the walls of which is chosen to create a confinement zone in which at least part of the combustion between oxidizer and fuel takes place.
    Type: Grant
    Filed: February 13, 2003
    Date of Patent: February 9, 2010
    Assignee: Saint-Gobain Isover
    Inventors: Oleg Boulanov, Christopher Ellison, Jean-Luc Bernard
  • Publication number: 20090311641
    Abstract: A burner includes: a body defining an interior cavity; a burning surface located in the body and defining, at least in part, the interior cavity; a defusing surface located on an exterior portion of the body; ports on the body extending through the defusing and burning surfaces and configured to provide fluid communication between the interior cavity and ambient air outside the body; and an opening larger than at least one of the ports, the opening providing fluid communication between the interior cavity and a space outside of the body. A method of burning a gas and reducing acoustic feedback in a combustion device are also described.
    Type: Application
    Filed: June 13, 2008
    Publication date: December 17, 2009
    Inventors: Gunther Berthold, Terry Hilliard, James Jacobs
  • Patent number: 7618595
    Abstract: An assembly is provided for purifying toxic gases from production processes by thermal conversion in a reactor chamber and subsequent treatment of reaction products with a sorption agent in a washing device in order to bind water-soluble reaction products and to elute solid reaction products. The reactor chamber has an external wall and an internal wall, the internal wall tapering at its base in the form of a funnel at a predetermined angle. A unit for thermal treatment of toxic gases is located on the reactor chamber, sealing the top of the chamber. An inner face of the internal wall of the reactor chamber comprises a film of water flowing downwards in a uniform manner. The exterior of the internal wall is surrounded by a cloak of water. A waste gas outlet and a connection for a water circuit are located at the lower end of the tapering internal wall.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: November 17, 2009
    Assignee: Centrotherm Clean Solutions GmbH & Xo. KG
    Inventors: Robert Michael Hartung, Volker Kinzig, Rolf Hartung
  • Patent number: 7591648
    Abstract: A burner assembly includes a fuel nozzle and an air-fuel mixing cone coupled to the fuel nozzle. Fuel is discharged from the fuel nozzle into a mixing chamber formed in the air-fuel mixing cone. Air passes into the mixing chamber through openings formed in the air-fuel mixing chamber and mixes with fuel to form a combustible air-fuel mixture in the air-fuel mixing chamber.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: September 22, 2009
    Assignee: Maxon Corporation
    Inventor: Pawel Mosiewicz
  • Publication number: 20090226854
    Abstract: Provided is a combustion apparatus capable of preventing a heat loss from a combustion cabinet without deteriorating a combustion performance thereof. According to the present invention, a part of an inner side surface of a combustion cabinet (1), which encloses a combustion chamber where a mixture gas erupted from a combustion plate (22) is combusted, is covered with a cover (7) made of an insulation material; and the cover (7) is provided with a concave portion (7a) at an outer side surface thereof having contact with the inner side surface of the combustion cabinet (1), and an insulation air layer (7b) is defined by the concave portion (7a).
    Type: Application
    Filed: March 3, 2009
    Publication date: September 10, 2009
    Applicant: RINNAI CORPORATION
    Inventor: Takashi Ojiro
  • Publication number: 20090214998
    Abstract: A burner for fabricating an optical fiber preform, which can suppress the adhesion and deposition of glass particles to the front end of the burner without enlarging the burner diameter, is provided. The burner has a first tube, a second tube and a third tube coaxially arranged and define a glass raw material gas port, a sealing gas port, and a burnable gas port by the front end portions thereof, and a plurality of small diameter nozzles arranged between the second tube and the third tube, each of the nozzles arranged on a concentric circle relative to the glass raw material gas port and defines a combustion assisting gas port by the front end portion thereof, the front end portion of the second tube protrudes ahead of that of the first tube, and the front end portion of the third tube protrudes ahead of those of the second tube and each of the nozzles.
    Type: Application
    Filed: February 27, 2009
    Publication date: August 27, 2009
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventor: Makoto YOSHIDA
  • Patent number: 7517372
    Abstract: The present invention includes an integrated fuel processor subsystem incorporating a thermal combustor, a catalytic combustor, a quasi-autothermal reactor (QATR) and a air-fuel-steam (AFS) mixer to provide a range of operating modes exhibiting performance between that of a pure steam reformer and a pure autothermal reformer to increase the flexibility of the fuel processor to handle transient system demands such as cold starts, suppress emissions and carbon formation and improve efficiency.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: April 14, 2009
    Assignee: General Motors Corporation
    Inventors: Mohammed E Sennoun, Gerald E Voecks, Gary M Robb, William H Pettit, Steven G Goebel
  • Publication number: 20090075223
    Abstract: A burner assembly includes a fuel nozzle and an air-fuel mixing cone coupled to the fuel nozzle. Fuel is discharged from the fuel nozzle into a mixing chamber formed in the air-fuel mixing cone. Air passes into the mixing chamber through openings formed in the air-fuel mixing chamber and mixes with fuel to form a combustible air-fuel mixture in the air-fuel mixing chamber.
    Type: Application
    Filed: September 13, 2007
    Publication date: March 19, 2009
    Applicant: MAXON CORPORATION
    Inventor: Pawel Mosiewicz
  • Patent number: 7491056
    Abstract: A premix burner for a heat generator has partial cone shells (5) which make up a vortex generator, and which encompass a conically widening vortex chamber (6) and mutually define tangential air inlet slots (7), and also with feeds for gaseous and/or liquid fuel, of which at least one is arranged along the air inlet slots (7) on the partial cone shells (5), and at least one other is arranged along a burner axis (A) which centrally passes through the vortex chamber (6). At least n partial cone shells (5) encompass the vortex chamber (6), and define n air inlet slots (7), with n?3, preferably n?5, the n air inlet slots (7) each have at least a maximum slot width (10) which is equal to or larger than that slot width (10) which a generic type premix burner (1) of the same size and dimensioning with m?2 partial cone shells (5) and m air inlet slots (7) has.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: February 17, 2009
    Assignee: ALSTOM Technology Ltd.
    Inventor: Hans Peter Knoepfel