Axial Perforations Along Combustion Tube Patents (Class 431/352)
  • Patent number: 10378768
    Abstract: An assembly is provided for a turbine engine. This turbine engine assembly includes a combustor wall. The combustor wall includes a shell, a heat shield and an annular body. The annular body extends through the combustor wall and at least partially defines a quench aperture along a centerline through the combustor wall. The shell defines a first cooling aperture radially outwards of the annular body relative to the centerline and is configured to direct air to impinge against a portion of the annular body between the heat shield and the shell.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: August 13, 2019
    Assignee: United Technologies Corporation
    Inventors: Frank J. Cunha, Stanislav Kostka, Jr.
  • Patent number: 10352568
    Abstract: A combustor arrangement for a gas turbine includes a first burner, a first combustion chamber, a mixer for admixing a dilution gas to the gases leaving the first combustion chamber during operation, a second burner, and a second combustion chamber arranged sequentially in a fluid flow connection. These elements of the combustor arrangement are arranged in a row to form a flow path extending between the first combustion chamber and the second burner. The arrangement includes a central lance body in the flow path, extending from the first burner into the second burner, which lance body includes at least one air duct for providing air for the mixer, wherein the air is injected into the combustor through air supply elements.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: July 16, 2019
    Assignee: ANSALDO ENERGIA SWITZERLAND AG
    Inventors: Adnan Eroglu, Andrea Ciani, Douglas Anthony Pennell
  • Patent number: 10330319
    Abstract: The invention refers to a sequential combustor arrangement including a first burner, a first combustion chamber, a mixer for admixing a dilution gas to the hot gases leaving the first combustion chamber during operation, a second burner, and a second combustion chamber arranged sequentially in a fluid flow connection. The mixer includes a plurality of injection pipes pointing inwards from the side walls of the mixer for admixing the dilution gas to cool the hot flue gases leaving the first combustion chamber with a low pressure drop. The disclosure further refers to a method for operating a gas turbine with such a combustor arrangement.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: June 25, 2019
    Assignee: ANSALDO ENERGIA SWITZERLAND AG
    Inventors: Michael Duesing, Luis Tay Wo Chong Hilares, Mirko Ruben Bothien, Jaan Hellat, Bruno Schuermans
  • Patent number: 10168052
    Abstract: A heat shield for a combustor includes a ring shaped body including a central opening defining a radially inner edge of the ring shaped body. The ring shaped body is at least partially made of a ceramic material. The heat shield includes a shaped portion designed to enhance an interference fit.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: January 1, 2019
    Assignee: United Technologies Corporation
    Inventors: Hoyt Y. Chang, Stephen K. Kramer
  • Patent number: 9995481
    Abstract: A method and apparatus for a burner adapted to heat a furnace or other environment of use. In particular, a burner for providing a fuel gas in combination with an oxidant to effect controlled reaction of the fuel gas in a manner to reduce NOx emissions is described. Combustion of the fuel gas is shifted from the burner combustor to a location outside the burner once the temperature within the furnace/radiant tube has reached a sufficient level to complete combustion of the fuel gas.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: June 12, 2018
    Assignee: Eclipse, Inc.
    Inventors: Jianhui Hong, Valeriy Smirnov
  • Patent number: 9976746
    Abstract: A combustor assembly for a gas turbine engine is provided. The combustor assembly generally includes an annular dome and a liner. The liner at least partially defines a combustion chamber and includes the forward end received within a slot defined by the annular dome. Additionally, a heat shield is provided. The heat shield includes an end also received within the slot defined by the annular dome. A mounting assembly attaches the forward end of the liner and the end of the heat shield to the annular dome, such that the forward end of the liner and the end of the heat shield are co-mounted within the slot defined by the annular dome.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: May 22, 2018
    Assignee: General Electric Company
    Inventors: Nicholas John Bloom, Daniel Kirtley, Adam Robert Kahn
  • Patent number: 9851105
    Abstract: A self-cooled orifice structure that may be for a combustor of a gas turbine engine, and may further be a dilution hole structure, includes a hot side panel, a cold side panel spaced from the hot side panel, and a continuous inner wall extending between the hot and cold side panels and defining an orifice having a centerline and communicating axially through the hot and cold side panels. A plurality of end walls of the structure are in a cooling cavity that is defined in-part by the hot and cold side panels and the inner wall. Each end wall extends between and are engaged to the hot and cold side panels and are circumferentially spaced from the next adjacent end wall. A plurality of inlet apertures extend through the cold side panel and are in fluid communication with the cavity, and each one of the plurality of inlet apertures are proximate to a first side of a respective one of the plurality of end walls.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: December 26, 2017
    Assignee: United Technologies Corporation
    Inventors: Tracy A. Propheter-Hinckley, Dominic J. Mongillo, Joel H. Wagner, Mark F. Zelesky, Stanislav Kostka, Timothy S. Snyder
  • Patent number: 9810427
    Abstract: The present invention discloses a novel apparatus and way for directing a supply of compressed air into a fuel nozzle assembly for mixing with a fuel source. The apparatus comprises a fuel nozzle assembly having a plurality of coaxial tubes and radially-extending swirler vanes for directing a supply of fuel to a mixing tube. Compressed air is directed to flow in a primarily axial direction by passing through a hemispherically-shaped dome portion at an air inlet region of the fuel nozzle assembly. The hemispherically-shaped dome includes a plurality of openings for directing air into the fuel nozzle assembly in a direction having a radial and axial component.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: November 7, 2017
    Assignee: ANSALDO ENERGIA SWITZERLAND AG
    Inventors: Luiz Claudio Fernandes, Brian Richardson, Peter Stuttaford, Sumit Soni, David Schlamp, Chiluwata Lungu, Justin Bosnoian, Nicolas Demougeot, Kevin B. Powell, Brandon Hill, Marc Paskin
  • Patent number: 9671112
    Abstract: A system includes a multi-tube fuel nozzle of a turbine combustor. The multi-tube fuel nozzle includes a support structure defining an interior volume configured to receive an air flow; a plurality of mixing tubes disposed within the interior volume, wherein each of the plurality of mixing tubes comprises a respective fuel injector; and an outer annular wall configured to direct an air flow from an annulus between a liner and a flow sleeve of the turbine combustor at least partially radially inward into the interior volume through an air inlet and toward the plurality of mixing tubes, wherein the outer annular wall at least partially defines an air flow passage extending from the annulus to the interior volume.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: June 6, 2017
    Assignee: General Electric Company
    Inventors: Ronald James Chila, Gregory Allen Boardman, James Harold Westmoreland
  • Patent number: 9657938
    Abstract: A fuel combustion system comprises a discharge nozzle with concentric fuel and air orifices. A fuel conduit is coupled to each fuel orifice for supplying liquid fuel thereto. An air conduit is coupled to each air orifice for supplying air thereto. The fuel and the pressurized air only mixing with one another, upon being discharged from the respective fuel and air orifices, to form a fuel mixture. A supplemental air source supplies supplement air to facilitate combustion. An air deflector sleeve at least partially surrounds and accommodates the at least one discharge nozzle and a cylindrical blast tube surrounding the air deflector sleeve and an outlet end of the cylindrical blast tube supports a flame retention head. The flame retention head redirects the supplement air radially inward, through openings in the air deflector sleeve and the flame retention head, to assist with combustion of the fuel mixture.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: May 23, 2017
    Inventors: Eugene R. Frenette, Henry E. Frenette
  • Patent number: 9631813
    Abstract: An insert element for closing an opening inside a wall of a hot gas path component of a gas turbine includes a plate like body with an opening sided surface. The surface provides at least one first area which projects beyond at least one second area of said surface which surrounds the at least one first area frame-like. The at least one first area is encompassed by a circumferential edge corresponding in form and size to the opening such that the circumferential edge and the opening contour limit a gap at least in some areas, while the at least one second area contacts directly or indirectly the wall of the hot gas path component at a rear side facing away from the hot gas path. The plate like body provides at least a first functional layer-system, providing at least one layer made of heat resistant material, defining the first area of the surface (S).
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: April 25, 2017
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Felix Reinert, Guenter Ambrosy, Matthias Hoebel, Jeffrey De Jonge
  • Patent number: 9423132
    Abstract: The gaseous fuel-fired can combustor for a gas turbine include a generally cylindrical housing, and a generally cylindrical liner disposed coaxially within the housing to define with the housing a radial outer flow passage for combustion air, the-liner also defining inner combustion and a dilution zone, the dilution zone being axially distant a closed housing end relative to the combustion zone. A fuel/air mixing apparatus disposed at the closed housing end includes a plurality of swirl vanes defining passages each having constant cross-section flow areas along the vanes, and an increasing aspect ratio from the passage inlet to the outlet. An impingement cooling sleeve coaxially disposed in the combustion air passage between the housing and the liner cools the portion of the liner defining the combustion zone.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: August 23, 2016
    Assignee: OPRA TECHNOLOGIES B.V.
    Inventors: Axel Lars-Uno Eugen Axelsson, Martin Beran, Ekaterina Sinkevich
  • Patent number: 9366436
    Abstract: A combustion chamber of a gas turbine with an outer combustion chamber wall and with tiles attached to the inner side of said wall or to a combustion chamber of the single-wall design, wherein the combustion chamber has in a center area, relative to the flow direction, a slot extending around the circumference of the combustion chamber and dividing the outer combustion chamber wall and the tiles for the supply of mixing air.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: June 14, 2016
    Assignee: Rolls-Royce Deutschland Ltd & Co KG
    Inventors: Carsten Clemen, Thomas Doerr, Sebastian Bake
  • Patent number: 9057523
    Abstract: A combustor component of a gas turbine engine including a heat shield panel. The heat shield panel a defines microcircuit flow path within a thickness of said heat shield panel.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: June 16, 2015
    Assignee: United Technologies Corporation
    Inventors: Frank J. Cunha, Timothy S. Snyder
  • 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: 8899975
    Abstract: A combustor having wake air injection is provided. The combustor includes a fuel nozzle, first and second vessels formed and disposed to define a flow path along which a first fluid flows in first and second opposite directions toward the fuel nozzle, a vane disposed in the flow path and an injector to inject a second fluid into wake formed by an obstruction disposed in the flow path upstream from the vane.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: December 2, 2014
    Assignee: General Electric Company
    Inventors: Abdul Rafey Khan, Bradley Donald Crawley, Rajendra Paniharam, Nishant Govindbhai Parsania
  • Patent number: 8834154
    Abstract: A transition piece of a combustor that sends high temperature combustion gas to a turbine includes a cylindrical body wall and cooling air passages. The passages are formed in the body wall so as to extend in an axial direction thereof, and each of the passages has cooling air inlet ports opened at an outer circumferential surface of the transition piece and cooling air outlet ports opened at an inner circumferential surface of the transition piece. The cooling air outlet ports form a plurality of lines in a direction oblique with respect to the axial direction of the body wall. A first distance between a first line of the cooling air outlet ports and a second line of the cooling air outlet ports adjacent to the first line is larger than a second distance between the cooling air outlet ports adjacent to each other.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: September 16, 2014
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventor: Hiroaki Kishida
  • Patent number: 8794961
    Abstract: A cooling arrangement for a surface of a wall in a gas turbine engine, the wall having a plurality of effusion holes each with an outlet onto the surface for supplying an effusion flow to the surface and an inlet, the inlets of the effusion holes being arranged at the peripheries of groups tessellated on an opposing surface of the wall, each inlet being located on the peripheries of three groups. The arrangement comprises a second wall spaced apart from the opposing surface having impingement orifices each for directing a flow of air in use to a respective impingement location on the opposing surface, each group having a centrally positioned impingement location.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: August 5, 2014
    Assignee: Rolls-Royce, PLC
    Inventors: Paul I. Chandler, Anthony Pidcock
  • Patent number: 8784096
    Abstract: An air-fuel burner includes a heat-transfer tube, an air-fuel mixing chamber, and an air-fuel nozzle. The air-fuel nozzle is coupled to the air-fuel chamber to communicate a combustible air-fuel mixture into a combustion chamber defined between the air-fuel nozzle and the heat-transfer tube. The combustible air-fuel mixture, when ignited, establishes a flame in the combustion chamber to produce heat which is transferred through heat-transfer tube to an adjacent medium external to the heat-transfer tube.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: July 22, 2014
    Assignee: Honeywell International Inc.
    Inventor: Pawel Mosiewicz
  • 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: 8708693
    Abstract: A high speed burner having very low polluting emissions, suitable for the process for heat treatment furnaces of a load in free atmosphere. The burner is capable of creating a compact and lean flame with the peculiarity of keeping the NOx emissions at very low levels at any chamber temperature and at any excess combustion air. The burner requires a single inlet for the comburent air and a single inlet for the combustible gas.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: April 29, 2014
    Assignee: Danieli & C. Officine Meccaniche S.p.A.
    Inventors: Davide Astesiano, Alessandro Donetti
  • 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
  • Publication number: 20130115566
    Abstract: A combustor having wake air injection is provided. The combustor includes a fuel nozzle, first and second vessels formed and disposed to define a flow path along which a first fluid flows in first and second opposite directions toward the fuel nozzle, a vane disposed in the flow path and an injector to inject a second fluid into wake formed by an obstruction disposed in the flow path upstream from the vane.
    Type: Application
    Filed: November 4, 2011
    Publication date: May 9, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Abdul Rafey Khan, Bradley Donald Crawley, Rajendra Paniharam, Nishant Govindbhai Parsania
  • 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: 8353165
    Abstract: A combustor assembly that includes a casing that includes a plenum, a combustor liner positioned within the plenum and defining a combustion chamber there within, and a transition piece that includes a forward portion that is coupled to the combustion liner and an aft portion that extends from the forward portion. The aft portion includes a transition piece frame. The transition piece frame includes an upstream surface, a downstream surface, and a radially inner surface extending between the upstream and downstream surfaces. The radially inner surface includes a leading edge that extends between the radially inner surface and the upstream surface. A plurality of first cooling passages extend from the upstream surface to the downstream surface. Each of the first cooling passages is oriented obliquely with respect to the leading edge from the upstream surface towards the downstream surface.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: January 15, 2013
    Assignee: General Electric Company
    Inventors: Kevin Weston McMahan, Ronald James Chila
  • Publication number: 20120308948
    Abstract: A combustor nozzle includes a downstream surface having an axial centerline. A plurality of passages extend through the downstream surface and provide fluid communication through the downstream surface. A plurality of slits are included in the downstream surface, and each slit connects to at least two passages. A method for modifying a combustor nozzle includes machining a plurality of slits in a downstream side of a body. The method further includes connecting each slit to at least two passages that pass through the body.
    Type: Application
    Filed: June 6, 2011
    Publication date: December 6, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Patrick Benedict Melton, Scott Robert Simmons, Russell DeForest, Donald Mark Bailey
  • Patent number: 8307657
    Abstract: A system, in one embodiment, includes a turbine engine. The turbine engine includes a combustor that includes a hollow annular wall having a combustor liner. The turbine engine also includes first flow path in a first direction through the hollow annular wall. The turbine engine further includes a second flow path in a second direction that is opposite the first direction through the hollow annular wall. The second flow path may include one or more film holes configured to supply a cooling film to a downstream end portion of the combustor liner.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: November 13, 2012
    Assignee: General Electric Company
    Inventor: Ronald James Chila
  • 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
  • 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
  • Publication number: 20110091829
    Abstract: The present invention explains a multi-fuel combustion system. It consist of a combustor basket adapted to combust at least two type of fuels. The combustor basket has got a circumferential wall comprising a plurality of openings. The combustion system further has a first conduit adapted to provide a first type of fuel directly to the combustor basket, a second conduit adapted to provide a second type of fuel directly to the combustor basket and a third conduit adapted to inject at least one of the first type of fuel and the second type of fuel through the openings into the combustor basket.
    Type: Application
    Filed: October 20, 2009
    Publication date: April 21, 2011
    Inventors: Vinayak Barve, Timothy A. Fox, Jianfan Wu, Ulrich Wörz, Jaap van Kampen
  • 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: 7887322
    Abstract: Disclosed is a mixing hole arrangement for improving homogeneity of an air and fuel mixture in a combustor, the mixing hole arrangement comprising a plurality of mixing holes defined by a liner, wherein at least one of the plurality of mixing holes is a mixing hole that is at least one of sized and positioned to impede penetration of a fluid flow into a primary mixing zone located in a head end of the combustor.
    Type: Grant
    Filed: September 12, 2006
    Date of Patent: February 15, 2011
    Assignee: General Electric Company
    Inventors: Predrag Popovic, Derrick Walter Simons, Krishna Kumar Venkataraman
  • 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
  • Publication number: 20100119984
    Abstract: Abatement systems are described. An abatement system includes a combustion chamber and a fuel burner ring coupled with the combustion chamber. Another abatement system includes a combustion chamber and a fuel flow control mechanism coupled with the combustion chamber.
    Type: Application
    Filed: November 6, 2009
    Publication date: May 13, 2010
    Inventor: Allen G. Fox
  • Publication number: 20100015562
    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: Application
    Filed: July 16, 2008
    Publication date: January 21, 2010
    Inventor: Robert S. Babington
  • Patent number: 7632091
    Abstract: A premix burner for producing an ignitable fuel/air mixture has a swirl generator with at least two burner shells (B) which complement one another to form a throughflow body, which in each case have a first burner shell section (1) with a partial cone shape and together enclose an axially conically widening swirl space and which mutually define, in the axial cone longitudinal direction, tangential air inlet slots (LS), through which the combustion feed air (L) passes into the swirl space, in which an axially spreading swirl flow forms, and includes fuel feeds which are arranged at least in sections along the tangentially running air inlet slots (LS).
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: December 15, 2009
    Assignee: ALSTOM Technology Ltd.
    Inventors: Christian Steinbach, Martin Andrea Von Planta, Thomas Ruck, Weiqun Geng
  • Patent number: 7628610
    Abstract: A method and device for improved efficiency in thermal oxidation is presented which uses a cyclonic flame to combust a stream of hydrocarbons drawn to the flame source by a pressure differential. The improved burner and method are particularly suited for combusting volatile organic compounds that are a derivative result of another waste management process mechanically attached to a thermal oxidizer. The improved burner is formed by configuring a burner basket into a conical shape with openings that allow a combustible gas to travel along the interior of the basket frame. The gas travels spirally within the basket frame as it is assisted by forced air and when ignited, creates a cyclonic flame effectively combusting material such as volatile organic compounds that are manipulated into contacting the flame.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: December 8, 2009
    Assignee: Simeken, Inc.
    Inventors: Michael W. Gehring, Juan Antonio Caballero, James Sipprelle, William Sweet
  • Publication number: 20090214994
    Abstract: A device for igniting combustible means, especially solid combustibles such as wood, charcoal, and similar. The device includes a pressurized receptacle that is filled with a combustible medium, a spring-loaded actuating valve which selectively opens and closes a discharge port of the receptacle, preferably by applying pressure with a fingertip, and a top part that is joined to the discharge port and has a tubular extension having an adequate length.
    Type: Application
    Filed: April 3, 2006
    Publication date: August 27, 2009
    Inventor: Jonathan Gdynia
  • Publication number: 20090208889
    Abstract: The invention relates to a burner comprising several substantially concentric channels, one (1) of which is arranged outside of all fuel supply conduits and is delimited by two pipes (2,3), whose axes (4) are placed in a parallel position and which are movable with respect to each other. According to said invention, diverting members (6) used for imparting a tangential component (7) to a fluid flowing in the channel (1) are carried by the first pipe (2) and are fixed thereto, the second pipe (3) comprises a drive portion (9) for driving the fluid outside the diverting members (6) and the angle of tangential deviation of the fluid at the downstream end (8) of the channel (1) depends on the axial position of the second pipe (3) with respect to the first pipe (2).
    Type: Application
    Filed: June 26, 2006
    Publication date: August 20, 2009
    Inventor: Jean-Claude Pillard
  • Patent number: 7566217
    Abstract: A variable orifice combustor unit 10 comprises an annular combustion chamber 12 extending about a central axis 14 and ending in a discharge nozzle 16. Charging of the chamber 12 takes place from combustion fuel and air supply chambers 18 and 20 via a fuel charging orifice array 22 and an air charging orifice array 24. The orifices 28.1, 28.2 of the orifice arrays 22, 24 are positioned and slanted at the same forward angle in the direction of the nozzle 16 to the effect of their central axes 38, 40 cutting along the longitudinal centre of the combustion chamber 12. The cross sectional sizes of the orifices 28 are adjustable by means of an orificed displaceably mounted cyndrically shaped covering body 44 for the fuel charging side and an orificed cylindrical body 58 for the air charging side both being displaceable in the direction of the axis 12.
    Type: Grant
    Filed: April 19, 2005
    Date of Patent: July 28, 2009
    Inventor: Johann Carl Mörsner
  • Publication number: 20090117502
    Abstract: A combustor comprises in flow series a burner, a transition piece and a combustion chamber being of larger diameter than the transition piece, the combustion chamber being connected to the transition piece via a dome portion. In the dome portion are located air injection openings. A method of operating the combustor comprises the stop of introducing air from the dome portion by means of air jets.
    Type: Application
    Filed: February 7, 2007
    Publication date: May 7, 2009
    Inventor: Nigel Wilbraham
  • Publication number: 20090111063
    Abstract: A lean premixed, radial inflow, multi-annular staged nozzle for creating three independent combustion zones within a can-annular, dual-fuel gas turbine combustor is provided. The nozzle includes a pilot zone fueled by a gas pilot nozzle and center cartridge; a flame holder zone fueled by an inner main gas fuel; a main flame zone fueled by an outer main gas fuel; a main radial swirler for mixing a portion of incoming air to the nozzle with the inner main gas fuel supply and the outer main gas fuel supply; an endcover; and means for controlling the ratio of an inner main gas fuel supplied and an outer main gas fuel supplied.
    Type: Application
    Filed: October 29, 2007
    Publication date: April 30, 2009
    Inventors: Gregory A. Boardman, Thomas E. Johnson, Johnie F. McConnaughhay, Anuradha Sanyal
  • 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
  • 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
  • Patent number: 7479008
    Abstract: A burner apparatus for an indoor or outdoor fireplace, fire pit, stove or oven is shown. The burner apparatus operates to produce natural gas fueled or liquid petroleum fueled amber flames among artificial logs, coals or a combination of artificial logs and coals, simulating a natural fire. One embodiment of the burner apparatus comprises a burner tube loop for the distribution of fuel, a fuel/air mixing valve for mixing the fuel and air before ignition of the resulting fuel/air mixture, metal cups for the dissipation of the fuel/air mixture and flames, an ignition system for igniting the fuel/air mixture, a control system for monitoring and controlling the ignition of the fuel and for regulating the flow of fuel, and artificial logs, coals or a combination of logs and coals placed around the burner tube loop to provide for an aesthetically pleasing and natural looking display.
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: January 20, 2009
    Inventor: Paul David Thomas
  • Publication number: 20080160468
    Abstract: A burner assembly for a gas powered cooking appliance is provided. The burner assembly may include a burner body including a central region and a plurality of radiating extensions extending radially outward from the central region. The burner assembly may include a burner cap with a central region and a plurality of radiating extensions extending radially outward from the central region. The burner cap is positioned on top of the burner body when the burner is assembled. The burner cap may include at least one overhang positioned on the outer perimeter of the central region and between an adjacent pair of radiating extensions. The at least one overhang forms a gap between the exterior wall of the burner body and the interior wall of the overhang. This gap, or flame stabilization chamber, provides for collection of gases and flame that aid in maintaining the flame during low temperature operation.
    Type: Application
    Filed: June 26, 2007
    Publication date: July 3, 2008
    Applicant: ELECTROLUX HOME PRODUCTS
    Inventors: William Michael Pryor, Hector Jose Donastorg, John Thurl Pottenger, Michael Dennis Padgett
  • Patent number: 6984124
    Abstract: A direct-air, gas-fired air makeup heating unit is disclosed which provides reduced nitrogen dioxide emissions with a higher temperature rise. The unit includes a combustion chamber with a protective chamber downstream of the combustion chamber. At high firing intensity, the flame exits the combustion chamber and enters the protective chamber. The resulting flame is therefore protected from excess air moving around the combustion chamber, thereby lowering nitrogen dioxide emissions even at such high firing intensities.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: January 10, 2006
    Assignee: Midco International, Inc.
    Inventors: Pawel Mosiewicz, Ceji Li
  • Patent number: 6939130
    Abstract: A combustion apparatus comprising a pre-combustor stage and a primary combustion stage, the pre-combustor stage having two co-axial cylinders, one for oxidant and one for fuel gas, in which the fuel gas is preheated and the primary combustion stage having rectangular co-axial passages through which fuel and oxidant are admitted into a refractory burner block. Both passages converge in the vertical plane and diverge in the horizontal plane. The passage through the refractory burner block also has a rectangular profile and diverges in the horizontal plane. The outlets to the primary combustion stage are recessed in the refractory burner block at a distance which may be varied.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: September 6, 2005
    Assignee: Gas Technology Institute
    Inventors: Hamid A. Abbasi, William J. Hobson, Jr., David M. Rue, Valeriy Smirnov