Feed Whirling Means At Wall Patents (Class 431/185)
  • Patent number: 10047959
    Abstract: A fuel injector for a fuel spray nozzle of a gas turbine engine combustor includes an angular lip axially projecting into an upstream section of an annular passage to guide a fuel layer vortex to flow along a radially outer passage wall of the annular passage and to guide an air layer vortex to fill into and pass through an annular space between the fuel layer vortex and a radially-inner passage wall of the annular passage. The air layer vortex is free of mixing with the fuel layer vortex before the fuel layer vortex is discharged from the annular passage for fuel atomization.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: August 14, 2018
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Bhawan B. Patel, Oleg Marenko
  • 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
  • Publication number: 20150140499
    Abstract: The invention provides a burner configured for use with a dryer for drying aggregates, the burner comprising: a burner chamber (3) is which is mounted a fuel-atomising burner nozzle (3.32) and means for conveying fuel to the burner nozzle; means providing a flow of air through the burner chamber and into the combustion chamber; a combustion chamber (4) in which the fuel is burnt; the combustion chamber (4) having an opening at an upstream end thereof communicating with the burner chamber (3) and an opening at a downstream end thereof for passing combustion gases and heated air into a drying chamber of the dryer; the burner nozzle (3.32) being arranged to direct a flow of atomised fuel into the combustion chamber; a first airflow modifier device (3.11) mounted in or across the opening at the upstream end of the combustion chamber such that there is a gap constituting an air escape channel around a periphery of the first airflow modifier device, the first airflow modifier device (4.
    Type: Application
    Filed: April 23, 2013
    Publication date: May 21, 2015
    Inventor: Ian Brian LEWIS
  • 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: 8882491
    Abstract: The invention is a connection duct between the blower and a mixing device of a burner. The connection duct expands wedge-shaped along a first direction and diverts air from the blower to a second direction. The connection duct further comprises diverting means for diverting the air in a circular flow around the second direction corresponding to a longitudinal axis of the mixing device. The diverting means comprise a tube section with at least one inflow opening arranged in the peripheral wall of the diverting means. A truncated cone comprising a tapering section is arranged in the tube section so that the tapering section faces in the direction of the mixing device. A passage cross-section of the inflow opening can be adjusted by a tube arranged in the peripheral wall which can be rotated around the tube's longitudinal axis and bears against the internal surface of the tube section.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: November 11, 2014
    Assignee: Dome Holding GmbH
    Inventor: Thomas Rütten
  • Patent number: 8561602
    Abstract: Gas fire devices are provided that produce a swirling flame by passive means using the kinetic energy of gas exiting through burner ports located in a burner and the kinetic energy of air drawn through louvers or flaps radially positioned on the base of a plenum. Situated above the burner and plenum is a chimney, which surrounds the flame and may be a translucent or transparent material to help observers better see the flame.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: October 22, 2013
    Assignee: Agio International Company, Ltd.
    Inventors: Derik Andors, Stephen F. Richardson, Douglas DeFouw
  • Patent number: 8517719
    Abstract: A simple, economical and reliable swirl register [1000] is described for use with a wall burner of a commercial boiler. It employs a number of spaced swirl blocks [1150] that connect side plates [1110, 1120]. A number of moveable vanes [1130] are provided in the air ducts [1155] created between the swirl blocks [1150]. The vanes [1130] are attached to vane rods [1160] that operate the vanes [1130]. The swirl blocks [1150] are lightweight and rigid structures for holding the side plate [1110] a fixed distance from side plate [1120]. The block construction reduces binding of the vanes [1130] as the swirl register [1000] receives differential heating. The vane rods [1160] extend through a windbox front plate [1250] outside of the windbox area. A linkage assembly [1200] rotates the vane rods [1160]. A motor and gearbox [1230] cause all vanes [1130] to rotate the same amount.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: August 27, 2013
    Assignee: ALSTOM Technology Ltd
    Inventor: Oliver G. Briggs, Jr.
  • Publication number: 20130216963
    Abstract: A fuel injection duct for a combustion apparatus is provided. The fuel injection duct includes an inlet opening, an outlet opening, and an inner surface, wherein the inner surface exhibits a surface structure imparting a swirl to fuel moving from the inlet opening to the outlet opening, the fuel interacting with the surface structure of the inner surface. The manufacture of the fuel injection duct is easy and cost-effective and imparts a swirl to fuel flowing through the fuel injection duct.
    Type: Application
    Filed: June 15, 2011
    Publication date: August 22, 2013
    Inventor: Victoria Sanderson
  • Patent number: 8402768
    Abstract: The disclosure relates to a burner for a 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, the at least one body being configured as a streamlined body which has a streamlined cross-sectional profile and which extends with a longitudinal direction perpendicularly or at an inclination to a main flow direction prevailing in the burner. The at least one nozzle has its outlet orifice at or in a trailing edge of the streamlined body, and with reference to a central plane of the streamlined body, the trailing edge is provided with at least two lobes extending in opposite transverse directions.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: March 26, 2013
    Assignee: Alstom Technology Ltd.
    Inventors: Khawar Syed, Madhavan Poyyapakkam, Anton Winkler, Andre Theuer
  • Patent number: 8393892
    Abstract: A burner for production of inorganic spheroidized particles according to the present invention includes a raw material powder supply path that supplies raw material powder by using oxygen or an oxygen-enriched air as a carrier gas; a powder diffusion plate having a plurality of fine holes, which is provided at a downstream end of the raw material powder supply path; a raw material diffusion chamber that is formed in a diffusion pipe provided at a downstream end of the powder diffusion plate; a fuel supply path disposed around the outer circumference of the raw material powder supply path; an oxygen supply path disposed around the outer circumference of the fuel supply path; and a combustion chamber disposed at a downstream side of the raw material diffusion chamber, which has an inside diameter increasing along the downstream direction and communicates with the fuel supply path and the oxygen supply path.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: March 12, 2013
    Assignee: Taiyo Nippon Sanso Corporation
    Inventors: Yoshiyuki Hagihara, Kazuro Suzuki, Shinichi Miyake, Yasuyuki Yamamoto
  • Publication number: 20120298053
    Abstract: A valve assembly including a block forming a bore. An air inlet opening is in communication with the bore, and provides a volume of air into the bore. The bore provides communication between the air inlet opening and at least one air outlet passage. A fuel inlet opening is in communication with the bore, and provides a volume of fuel into the bore. The bore provides communication between the fuel inlet opening and at least one fuel outlet passage. A pintle is slidably positionable within the bore to control the volume of air directed out of the bore through the air outlet passage and the volume of fuel directed out of the bore through the fuel outlet passage.
    Type: Application
    Filed: April 24, 2012
    Publication date: November 29, 2012
    Applicant: Fuel Management, Inc.
    Inventors: Torey W. DEGRAZIA, JR., Margaret Rajski
  • Patent number: 8272859
    Abstract: A burner for production of inorganic spheroidized particles according to the present invention includes a first raw material supply path (1A) through which a raw material powder is supplied together with a carrier gas; a fuel supply path (4A) disposed around the outer circumference of the first raw material supply path (1A), through which a fuel gas is supplied; a primary oxygen supply path (5A) disposed around the outer circumference of the fuel supply path (4A), through which an oxygen-containing gas is supplied; a second raw material supply path (6A) disposed around the outer circumference of the primary oxygen supply path (5A), through which a raw material powder is supplied together with a carrier gas; and a secondary oxygen supply path (7A) disposed around the outer circumference of the second raw material supply path (6A), through which an oxygen-containing gas is supplied.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: September 25, 2012
    Assignee: Taiyo Nippon Sanso Corporation
    Inventors: Yoshiyuki Hagihara, Yasuyuki Yamamoto
  • Patent number: 8252212
    Abstract: A method for producing inorganic spheroidized particles according to the present invention includes a step of producing the inorganic spheroidized particles by means of a diffusion type burner (12), wherein the burner (12) comprises a first raw material supply path (1A), a fuel supply path (4A), a raw material diffusion chamber (9), a primary oxygen supply path (5A), a second raw material supply path (6A), a secondary oxygen supply path (7A), and a combustion chamber (8).
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: August 28, 2012
    Assignee: Taiyo Nippon Sanso Corporation
    Inventors: Yoshiyuki Hagihara, Yasuyuki Yamamoto
  • Publication number: 20120137938
    Abstract: A pulverized coal boiler of the present invention is structured so as to form, among upper and lower after-air nozzles, an opening serving as an outlet of the lower after-air nozzle positioned on the upstream side is formed in a rectangular shape, a cylindrical section for defining a minimum flow path area of combustion air flowing through a flow path of the after-air nozzle is installed inside of the lower after-air nozzles along the flow path of the lower after-air nozzle, and a swirl blade for giving a swirl force to the combustion air flowing through the flow path of the after-air nozzles is installed inside of the cylindrical section, and the flow path of the lower after-air nozzles is formed so that a flow path area of the flow path of the after-air nozzles through which the combustion air flows from a position where the cylindrical section is installed toward the opening of each of the lower after-air nozzles is expanded.
    Type: Application
    Filed: August 3, 2010
    Publication date: June 7, 2012
    Inventors: Akihito Orii, Hirofumi Okazaki, Yusuke Ochi
  • Patent number: 8177547
    Abstract: The invention relates to a method for starting a burner for combusting synthesis gases, wherein said burner comprises first and second fuel passages, the first fuel passage encompasses the second fuel passage in a substantially concentric manner and the gas transferred to the burner is mixed with combusting air and is combusted. According to said invention, in order to start the burner, the second fuel passage is first loaded with a synthesis gas to a predefined burner power at a first starting phase and the first fuel passage is loaded with the synthesis gas at a second starting phase.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: May 15, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventors: Berthold Köstlin, Frank Hannemann, Andreas Heilos, Gerhard Zimmermann
  • Patent number: 8113824
    Abstract: A large diameter mid-zone air separation cone is provided for decreasing NOx during burner operation by expanding the internal recirculation zone (IRZ) at the burner exit. The mid-zone air separation cone has a short cylindrical leading edge that fits in the outer air zone of a burner. The mid-zone air separation cone splits the outer air zone secondary air flow into two equal or unequal streams depending on the position of the air separation cone with respect to the outer air zone, and deflects a portion of the secondary air flow radially outward. Since the radial position of the air separation cone is farther from the burner centerline, the IRZ size is expanded and NOx emissions are minimized.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: February 14, 2012
    Inventors: Hamid Sarv, Albert D. LaRue, William J. Kahle, Alan N. Sayre, Daniel R. Rowley
  • Patent number: 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: 20110239916
    Abstract: Device for generating and transmitting heat capable of operating with fuel in any physical state that includes at least one cylindrical combustion chamber (9) divided into a lower section (11) and an upper section (12) of variable height, a pressurized air chamber (26) arranged below the lower section (11) of the combustion chamber, and a plurality of air injectors (14). The device is characterized in that the air injectors (14) are supported on a flat ring (43) and set in a second flat ring (52) and in that it also includes a set of replaceable parts (A) arranged in the free centre of both flat rings (43 and 52) and whose specific configuration depends on the physical state of the fuel being used. Furthermore said set of replaceable parts (A) includes at least one central air injector (16) located in the geometric centre of the unit.
    Type: Application
    Filed: April 7, 2011
    Publication date: October 6, 2011
    Inventor: René Mauricio NUÑEZ SUAREZ
  • Publication number: 20110229834
    Abstract: Fuel combustion and waste conversion can be achieved by passing an axial vortex stream in a combustion chamber in a first linear direction, and passing a peripheral vortex stream as a counterflow to the axial vortex stream in a direction generally opposing the first linear direction. The peripheral and axial vortex streams can be merged so that a first fuel and oxidant in the streams at least partially combust to form a product stream, the product stream moving in the first linear direction to an outlet at the second end of the combustion chamber. Vortices can be generated by tangentially introducing fluid streams into the one or more chambers. A primary chamber, a main chamber, and an afterburner chamber can be connected in series. Second fuel and pre-chambers can be used to stabilize and enhance combustion. Reagents can be introduced to refine gaseous streams including pollutants.
    Type: Application
    Filed: November 26, 2009
    Publication date: September 22, 2011
    Inventors: Norman Salansky, Nikolai Novikov
  • Patent number: 7922480
    Abstract: The invention provides a combustion apparatus which can inhibit an NOx generation even in the case of promoting a mixing between a high-temperature combustion gas and an air so as to intend to reduce an unburned combustible. In a combustion apparatus provided with a burner burning a fuel within a furnace in a theoretical air ratio or less, and an air port supplying a combustion air for a shortfall in the burner, a supply apparatus for supplying a nitrogen oxide generation inhibiting gas is provided in a mixing region between the both or near the mixing region. Further, the invention provides a wind box which can inhibit an NOx generation even in the case of promoting a mixing between a high-temperature combustion gas and an air so as to intend to reduce an unburned combustible.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: April 12, 2011
    Assignee: Babcock-Hitachi Kabushiki Kaisha
    Inventors: Kenji Kiyama, Shigeki Morita, Osamu Okada, Koji Kuramashi, Takanori Yano, Kenichi Ochi, Akira Baba, Miki Shimogori, Takeru Fukuchi, Hiroshi Yamaguchi, Hironobu Kobayashi, Masayuki Taniguchi, Hirofumi Okazaki, Kenji Yamamoto
  • Publication number: 20110076630
    Abstract: A combustion rotation system that utilizes the placement, direction, and/or unbalanced fuel injection flow rates to the burners in a fuel-injection power boiler, such as pulverized coal, oil or gas fired boiler, to achieve Inboard/Outboard (I/O) rotation of the combustion mass or other types of mixing of the combustion mass. The over fired air (“OFA”) ports may also be placed, directed, and/or operated to contribute to the rotation of the combustion mass. The fuel-injection combustion rotation system may also be controlled while the boiler is operation, and controlled automatically, through a master control system. The fuel-injection combustion rotation system induces multiple vortex rotation of the combustion mass, which is more efficient and effective than attempting to rotate the entire combustion mass in a single vortex.
    Type: Application
    Filed: September 29, 2009
    Publication date: March 31, 2011
    Inventor: M. Ishaq Jameel
  • Patent number: 7914282
    Abstract: Apparatus for reducing pollution from a flare stack includes a platform disposed on or near the top of the flare stack and a plurality of baffles and filters disposed on the platform. A first plurality of upwardly extending stainless steel baffles is disposed around the flare stack while a second plurality of baffles is disposed about the outer periphery of the platform. A first and a second plurality of filters are disposed between the first and second plurality of baffles. The first plurality of filters associated with a fan, blower or pump for drawing flare gas into and out of the filter.
    Type: Grant
    Filed: January 4, 2007
    Date of Patent: March 29, 2011
    Inventors: Khaled Jafar Al-Hasan, Ahmad Mohammad Al-Ali
  • Publication number: 20110048293
    Abstract: In a boiler furnace having nozzles for introducing combustion media such as air and coal, nozzle tip walls that have the greatest exposure to radiant heat and hot gases are provided with arrays of air holes that allow air to flow to the exposed sides of the walls from the opposite sides in order to reduce the temperature difference between the two sides and thereby reduce thermal distortion and damage resulting from oxidation.
    Type: Application
    Filed: August 26, 2009
    Publication date: March 3, 2011
    Applicant: R-V INDUSTRIES, INC.
    Inventor: John Grusha
  • Publication number: 20100285413
    Abstract: A combustor apparatus and method for the combustion of viscous fuels are provided. The combustor apparatus can include a precombustion chamber particularly adapted to heat and at least partially combust a heavy primary fuel, and a main combustion chamber adapted to combust the primary fuel uniformly through the main combustion chamber (in flameless mode). The precombustion chamber can include at least one air injection inlet port positioned to induce a first stage vortex in the main body portion of the housing of the precombustion chamber. Further, the precombustion chamber can be interfaced with a main combustion chamber to induce a second stage vortex within the main combustion chamber. The main combustion chamber can have an extended axial length in order to accommodate heavier fuels that require additional time to sufficiently combust (oxidize) within the combustion chamber.
    Type: Application
    Filed: May 5, 2010
    Publication date: November 11, 2010
    Applicant: GENERAL VORTEX ENERGY, INC.
    Inventor: Anatoli Borissov
  • Publication number: 20100279239
    Abstract: A boiler structure capable of efficiently alleviating or preventing corrosion and slagging on furnace walls in a furnace is provided. A circulating firing boiler structure is configured so that fuel and combustion air supplied into a furnace (11) from burners (12) disposed at a plurality of positions on furnace walls (11a) forming a rectangular cross section are combusted so as to form a swirling flow. Air-supplying parts (20) are disposed near flame-affected portions of furnace wall surfaces, where flames formed by the respective burners (12) approach or contact, to form regions having a higher air concentration than the peripheries thereof.
    Type: Application
    Filed: June 19, 2008
    Publication date: November 4, 2010
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Ryuhei Takashima, Takuichiro Daimaru, Shigehide Komada
  • Patent number: 7815875
    Abstract: The invention relates to a device for the reactive conversion of gaseous streams at high temperatures in excess of 1000° C. Said device comprises a reaction chamber (8) with an inlet opening for the gaseous streams to be converted, in particular a burner head (2) and an outlet opening for the converted gaseous streams. In order to guarantee the highest possible conversion performance, the reaction chamber (8) has a narrow construction, extending longitudinally from the inlet opening to the outlet opening to form a controlled gaseous flow, thus preventing a circulatory flow in the reaction chamber (8). To achieve reaction conditions that are as adiabatic as possible, the reaction chamber (8) is thermally insulated with a layer (7) that has a porous foam and/or fiber structure. In the simplest embodiment, the reaction chamber (8) is cylindrical, thus achieving a tubular flow reactor construction for the entire device.
    Type: Grant
    Filed: April 22, 2004
    Date of Patent: October 19, 2010
    Assignee: Linde Aktiengesellschaft
    Inventors: Sebastian Muschelknautz, Harald Ranke, Hanno Tautz
  • Publication number: 20100175381
    Abstract: A swirler including a plate normal to a central axis of the swirler, a plurality of vane cross-sections arranged on the plate and radially positioned about the central axis and a plurality of twisted vanes is provided. The twisted part of each vane is twisted around the central axis wherein the cross section of the twisting vane is normal to the central axis. In one aspect, each vane has an essentially triangular cross section.
    Type: Application
    Filed: April 17, 2008
    Publication date: July 15, 2010
    Inventor: Nigel Wilbraham
  • Publication number: 20100167054
    Abstract: A burner for production of inorganic spheroidized particles according to the present invention includes a raw material powder supply path that supplies raw material powder by using oxygen or an oxygen-enriched air as a carrier gas; a powder diffusion plate having a plurality of fine holes, which is provided at a downstream end of the raw material powder supply path; a raw material diffusion chamber that is formed in a diffusion pipe provided at a downstream end of the powder diffusion plate; a fuel supply path disposed around the outer circumference of the raw material powder supply path; an oxygen supply path disposed around the outer circumference of the fuel supply path; and a combustion chamber disposed at a downstream side of the raw material diffusion chamber, which has an inside diameter increasing along the downstream direction and communicates with the fuel supply path and the oxygen supply path.
    Type: Application
    Filed: May 30, 2007
    Publication date: July 1, 2010
    Inventors: Yoshiyuki Hagihara, Kazuro Suzuki, Shinichi Miyake, Yasuyuki Yamamoto
  • Publication number: 20090305179
    Abstract: The invention relates to furnace devices for powerful power-generating units and can be used for the heat and electric-power industry. The inventive steam-generator furnace comprises a vertical annular combustion chamber, which is formed by external and internal tubular screens, embodied in the form of concentrically arranged equilateral prisms. Burners and secondary air nozzles are placed in the bottom part of the furnace on the external screen faces tangentially to a conventional circle. Said burners and nozzles are movably arranged on the same plane and unidirectionally oriented in such a way that it makes it possible to adjust the conventional circle diameter. Additional secondary air nozzles are mounted in the top part of the furnace on the faces of the external and internal screens oppositely with respect to the burners.
    Type: Application
    Filed: December 20, 2005
    Publication date: December 10, 2009
    Applicant: ZAKRYTOE AKTSIONERNOE OBSCHESTVO "OTES-SIBIR'
    Inventor: Felix Anatolievich Serant
  • Patent number: 7625201
    Abstract: The present application relates in general to an apparatus and to methods for testing the performance of an automotive catalytic converter under conditions simulating those which occur in motor vehicles over extended driving conditions. The application provides a novel swirl plate and a novel fuel injector which enable the burner to run stoichiometric for extended periods of time.
    Type: Grant
    Filed: September 6, 2006
    Date of Patent: December 1, 2009
    Assignee: Southwest Research Institute
    Inventors: Melvin N. Ingalls, Jr., Gordon J. Bartley, Cynthia C. Webb
  • Publication number: 20090274985
    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: Application
    Filed: April 7, 2009
    Publication date: November 5, 2009
    Inventors: James K. McKnight, Edward Bacorn, Ken W. White
  • Patent number: 7585170
    Abstract: An animal and vegetable oils combustor, wherein primary air is introduced into a burner tile in the form of straight-ahead air flow moving straight ahead along the axial direction of the burner tile and secondary air is introduced in the form of swirl air flow moving along the inner surface of the side wall of the burner tile, whereby perfect combustion is liable to occur since a centrifugal force acts on liquid-drop fuel by swirl air flow to diffuse the fuel in the radial direction and the liquid-drop fuel does not take such a route as to be adhered to the inner wall even if char is included in the liquid drop fuel since the fuel is jetted after the grain size thereof is adjusted to small one beforehand.
    Type: Grant
    Filed: March 17, 2003
    Date of Patent: September 8, 2009
    Assignees: Yamaichi Metal Co., Ltd., Yamaichi New Technology Co., Ltd.
    Inventors: Shigeru Oga, Hiromitsu Iwasaki, Toshikazu Oga, Makoto Oga
  • Patent number: 7566218
    Abstract: A burner assembly has a burner head and a deflector plate extending radially therefrom and across a firetube housing for supporting the burner assembly therein. The deflector plate has a plurality of angled vanes for re-directing secondary combustion air flowing through the housing. Secondary air is deflected away from a nozzle tip at the burner head to minimize lifting of the flame by the deflector plate or by a low pressure ring formed around the nozzle tip above the deflector plate for creating an area of low pressure. Preferably, a combination of the deflector plate and low pressure ring provides a stable flame positioned at the nozzle tip under low-fire and high-fire conditions enabling use of a pilotless ignition and flame sensing system which is consistent under low and high fire conditions. More preferably, the deflector plate supports the igniter and optionally a heat return tube for heat tracing of the freeze-prone burner assembly components.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: July 28, 2009
    Assignee: ACL Manufacturing Inc.
    Inventor: Chris Aldrich
  • Patent number: 7553153
    Abstract: A solid-fuel burner comprising a fuel nozzle for injecting a mixed fluid with a mixture of solid fuel and air as a carrier gas thereof, a plurality of air nozzles provided on the outside of the fuel nozzle for surrounding the fuel nozzle; an end portion of an inner circumferential wall of the air nozzle located at least at the outermost circumference is outwardly expanded, and an inductive member provided at outlet of the air nozzle located at least on the outermost circumference so as to direct flow of air in the direction of outer circumference.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: June 30, 2009
    Assignee: Babcock - Hitachi K.K.
    Inventors: Hirofumi Okazaki, Kenji Yamamoto, Masayuki Taniguchi, Kouji Kuramashi, Kenji Kiyama, Takanori Yano
  • Publication number: 20090123883
    Abstract: The invention relates to heat engineering and can be used for designing and reconstructing furnaces for industrial boilers. More advantageously the inventive furnace can be used for burning coarsely dispersed broken combustibles, coal and schist. The invective swirling-type furnace operating method consists in returning the controllable amount of a coal-ash mixture from an ash catcher located behind a combustion to the internal surface thereof. Said swirling-type furnace comprises a combustion chamber provided with a sloping bottom which is formed by slops of lower parts of the walls thereof, a bottom-blowing device arranged under the sloping bottom mouth and an inclined burner which is used for supplying a fuel-air mixture and is fixed to the combustion chamber wall. The furnace is provided with the ash catcher located behind the combustion chamber and a recirculation ash channel, whose one end communicates with the ash catcher and the other with the combustion chamber internal space.
    Type: Application
    Filed: December 28, 2006
    Publication date: May 14, 2009
    Inventors: Felix Zalmanovich Finker, Igor Borisovich KUBYSHKIN
  • Patent number: 7367798
    Abstract: An air swirler capable of liquid fuel atomization for a fuel fired burner in a furnace or boiler having a hollow guide pipe supporting several swirl blades at an end adjacent to the furnace. Openings connected by tunnels to the inside of the guide pipe are provided in the trailing edges of each swirl blade. A fuel pipe is concentric with the guide pipe forming an annular space therebetween. Gaseous substances such as oxygen or natural gas are provided through the annular space and liquid fuel is provided through the fuel pipe. The fuel and gaseous substances travel through the tunnels to the openings for liquid fuel atomization and pre-mixing at the burner throat to reduce NOx formation.
    Type: Grant
    Filed: June 8, 2005
    Date of Patent: May 6, 2008
    Inventor: Hamid Sarv
  • Patent number: 7267809
    Abstract: The invention relates to a burner with a burner head (1) and a gas feed pipe (2) that is located in the burner head (1) and that is surrounded by an ring channel (3) for feed of another gas. In the gas feed pipe (2) and in the ring channel (3), there are means (10, 11) for producing a swirl of the gas flowing through the gas feed pipe (2) and that flowing through the ring channel (3).
    Type: Grant
    Filed: October 18, 2001
    Date of Patent: September 11, 2007
    Assignee: The Linde Group
    Inventors: Harald Ranke, Michael Heisel, Sebastian Muschelknautz, Hanno Tautz
  • Patent number: 7229483
    Abstract: A method for gasifying carbonaceous materials to fuel gases comprises the formation of an ultra-superheated steam (USS) composition substantially containing water vapor, carbon dioxide and highly reactive free radicals thereof, at a temperature of about 2400° F. (1316° C.) to about 5000° F. (2760° C.). The USS composition comprising a high temperature clear, colorless flame is contacted with a carbonaceous material for rapid gasification/reforming thereof. The need for significant superstoichiometric steam addition for temperature control. Methods for controlling a gasification/reforming system to enhance efficiency are described. A USS burner for a fluidized bed gasification/reforming reactor, and methods of construction, are described.
    Type: Grant
    Filed: April 1, 2002
    Date of Patent: June 12, 2007
    Inventor: Frederick Michael Lewis
  • Patent number: 7140874
    Abstract: The present application relates in general to an apparatus and to methods for testing the performance of an automotive catalytic converter under conditions simulating those which occur in motor vehicles over extended driving conditions. The application provides a novel swirl plate and a novel fuel injector which enable the burner to run stoichiometric for extended periods of time.
    Type: Grant
    Filed: August 6, 2002
    Date of Patent: November 28, 2006
    Assignee: Southwest Research Institute
    Inventors: Melvin N. Ingalls, Jr., Gordon J. Bartley, Cynthia C. Webb
  • Patent number: 7112060
    Abstract: The present invention provides a burner for use in a combustion-type waste gas treatment system for combusting waste gases emitted from semiconductor manufacturing system, particularly, a deposition gas containing SiH4 and a halogen-base gas, simultaneously at a high efficiency of destruction, making it difficult for a powder of SiO2 to be attached and deposited, performing a low-NOx combustion, and maintaining a desired level of safety. The combustion-type waste gas treatment system has a flame stabilizing zone (15), which is open toward a combustion chamber (11), surrounded by a peripheral wall (12), and closed by a plate (14) remotely from the combustion chamber. A waste gas, an auxiliary combustible agent, and air are introduced into and mixed with each other in the flame stabilizing zone (15), and the mixed gases are ejected toward the combustion chamber (11) perpendicularly to the plate (14).
    Type: Grant
    Filed: April 12, 2004
    Date of Patent: September 26, 2006
    Assignee: Ebara Corporation
    Inventors: Yoshiro Takemura, Tetsuo Komai, Kotaro Kawamura, Takeshi Tsuji, Kazutaka Okuda, Rikiya Nakamura, Keiichi Ishikawa, Tomonori Ohashi, Yasutaka Muroga, Tadakazu Nishikawa, Yuji Shirao, Hiroyuki Yamada
  • Patent number: 6969250
    Abstract: A waste gas treatment system having a burner part and a combustion chamber provided at a downstream side of the burner part. Combustion flames are formed from the burner part toward the combustion chamber, and a waste gas is introduced into the combustion flames, thereby oxidatively decomposing the waste gas. The combustion chamber is formed from an inner wall made of a fiber-reinforced ceramic material. Therefore, the wear of the inner wall due to heat and corrosion is minimized, and thermal stress cracking is also reduced. Consequently, the lifetime of the system increases, and the cost of equipment and the availability factor can be improved. In addition, because the inner wall exhibits no catalytic effect, the formation of thermal NOx is suppressed, and it is possible to achieve environmental preservation and to simplify the treatment equipment.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: November 29, 2005
    Assignee: Ebara Corporation
    Inventors: Kotaro Kawamura, Rikiya Nakamura, Yuji Shirao, Yoshiro Takemura, Kazutaka Okuda, Takeshi Tsuji
  • Patent number: 6916172
    Abstract: A burner apparatus comprising housing defining a chamber and having an air inlet, a peripherally extending baffle disposed in the housing, a first peripherally extending flow passage being formed between the housing and the baffle, the first flow passage being in open communication with the air inlet, a peripherally extending combustion liner disposed inwardly of the baffle, a second peripherally extending flow passage being formed between the liner and the baffle, the second flow passage being in open communication with the first passage, a reversing diverter disposed in the chamber and positioned to direct air flowing from the first flow passage into the second flow passage, a burner assembly mounting plate disposed in the liner and having a first side and a second side, the mounting plate and the liner at least partially defining a burner barrel on the first side of the mounting plate, at least one burner assembly mounted on the burner mounting plate and a plenum on the second side of the mounting plate th
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: July 12, 2005
    Assignee: L & S Cryogenics, Inc.
    Inventor: Michael C. Steiner
  • Patent number: 6796794
    Abstract: A combustor for waste gas treatment having a flame stabilizing zone surrounded by a peripheral wall and closed with a bottom wall. The flame stabilizing zone is provided to face a combustion chamber. Burner ports for auxiliary combustible gas are provided in the peripheral wall to inject an auxiliary combustible gas into the flame stabilizing zone so as to produce swirling flows. Burner ports for waste gas are provided in the bottom wall to inject a gas into the flame stabilizing zone.
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: September 28, 2004
    Assignee: Ebara Corporation
    Inventors: Yoshiro Takemura, Kohtaro Kawamura, Yuji Shirao, Rikiya Nakamura
  • Patent number: 6790032
    Abstract: A straight path carbon powder combustion machine uses carbon powders as fuel of the combustion machine. The carbon powders enter into the interior of an igniter from carbon powders inlets. Then the carbon powders further enter into a forced firing internal combustion chamber. The gas in the gas tube of the igniter is fired by an electric shock rod. Part of air input from the whirlwind combustion air inlet to mix in the forced firing internal combustion chamber. When the gas in the igniter is fired by the electric shock rod, the fire jets out from the gas combustion air inlet tube so as to fire the carbon powders. The carbon powders are intercepted by the tinder intercepter to adhere thereon. The carbon powders contact and are fired by the tinder on the tinder intercepter to form a large flame which is sprayed out from the plurality of flame outlets.
    Type: Grant
    Filed: January 6, 2003
    Date of Patent: September 14, 2004
    Inventors: Kuo-Yu Wu, Chen-Yi Lin
  • Patent number: 6764302
    Abstract: An atomizing nozzle for a burner, especially for a heater that can be used on a vehicle includes a first flow guide element (34), which provides a flow guide surface (40) and has an atomizing lip (48) in an axial end area in relation to a central axis (A) of the nozzle, a second flow guide element (36) defining a first flow space area (30) leading to the atomizing lip (48) together with the first flow guide element (34). A fuel feed device (54) in the second flow guide element (36) is provided for applying fuel through the first flow space area (30) onto the flow guide surface (40) of the first flow guide element (34). Provisions are made for the fuel feed device (54) to have at least one fuel feed channel section (58) in the second flow guide element (36), which said fuel feed channel section (58) is open toward a surface area (44; 44′) of the second flow guide element (36) and has a surface normal radial component different from zero.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: July 20, 2004
    Assignee: J. Eberspacher GmbH & Co. KG
    Inventors: Günter Eberspach, Walter Blaschke
  • Patent number: 6736635
    Abstract: The present invention provides a burner for use in a combustion-type waste gas treatment system for combusting waste gases emitted from semiconductor manufacturing system, particularly, a deposition gas containing SiH4 and a halogen-base gas, simultaneously at a high efficiency of destruction, making it difficult for a powder of SiO2 to be attached and deposited, performing a low-NOx combustion, and maintaining a desired level of safety. The combustion-type waste gas treatment system has a flame stabilizing zone (15), which is open toward a combustion chamber (11), surrounded by a peripheral wall (12), and closed by a plate (14) remotely from the combustion chamber. A waste gas, an auxiliary combustible agent, and air are introduced into and mixed with each other in the flame stabilizing zone (15), and the mixed gases are ejected toward the combustion chamber (11) perpendicularly to the plate (14).
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: May 18, 2004
    Assignee: Ebara Corporation
    Inventors: Yoshiro Takemura, Tetsuo Komai, Kotaro Kawamura, Takeshi Tsuji, Kazutaka Okuda, Rikiya Nakamura, Keiichi Ishikawa, Tomonori Ohashi, Yasutaka Muroga, Tadakazu Nishikawa, Yuji Shirao, Hiroyuki Yamada
  • Patent number: 6579085
    Abstract: This invention relates to a burner and a method of combustion for producing a flame jet sheet or sheets for various applications in industrial furnaces. The burner has at least one linear or curvilinear flame nozzle having a ratio of width to height of greater than unity in order to produce high velocity and high temperature flame jet sheet or sheets with a well defined geometry. The burner is capable of being scaled to various sizes for various industrial furnace applications due to its geometry.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: June 17, 2003
    Assignee: The BOC Group, Inc.
    Inventors: Donald Prentice Satchell, Jr., Christian Juan Feldermann
  • Patent number: 6572366
    Abstract: What is described is a burner system with a premix burner (1), in which is provided at least one vortex generator (2), through which passes an air-containing gaseous main flow (ZL) which flows axially through the premix burner (1) and into which gaseous and/or liquid fuel is injected, downstream of the vortex generator (2), as a secondary flow for generating a fuel/air mixture, and with a combustion chamber (5) which adjoins the premix burner (1) downstream of the latter and has a combustion chamber cross section (C2) which is larger than the flow cross section (C1), delimited by the premix burner (1), directly upstream of the combustion chamber (5).
    Type: Grant
    Filed: May 15, 2002
    Date of Patent: June 3, 2003
    Assignee: Alstom (Switzerland) Ltd
    Inventors: Adnan Eroglu, Klaus Knapp, Bettina Paikert
  • Patent number: 6551095
    Abstract: In a combustion process, especially one used for melting glass, the delivery of fuel is ensured by an apparatus having at least one burner (5) which is equipped with at least one injector (1) that includes a liquid fuel delivery tube (2) which has at least one internal wall (25) and an injected fluid delivery tube (3) arranged concentrically with respect to the liquid fuel delivery tube. Immediately before injecting the liquid fuel from its delivery tube, one puts it in the shape of a hollow jet basically assuming the shape of the internal wall. This has application for the reduction of NOx in a glass-making oven.
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: April 22, 2003
    Assignee: Saint-Gobain Glass France
    Inventors: Guy Tackels, Patrick Rouchy, Joseph Vernaz
  • Patent number: 6524098
    Abstract: A burner assemblage includes an elongated, round burner assembly having a central axis and including internal baffle structure. The baffle structure is arranged to cause concentric primary and secondary air flows to move in a direction generally parallel to said axis. The secondary air flow is generally annular in shape and the same is disposed in generally surrounding relationship relative to said primary air flow. The assemblage also includes a swirler structure for swirling the air primary and secondary air flowing through the central portions of the burner. The swirler structure includes a first swirler component located in a position for swirling the primary air flow. The first swirler component has an outer circumferential edge that extends around the axis of the burner in radially spaced relationship thereto. The swirler also includes a second generally annular swirler component located in a position for swirling the secondary air flow independently of the swirling of the primary air flow.
    Type: Grant
    Filed: May 16, 2000
    Date of Patent: February 25, 2003
    Assignee: John Zink Company LLC
    Inventors: Lev Tsirulnikov, Michael Gamburg, Michael Brecker, Glen Altpfart, John Guarco, Richard Waibel