Flame Holder Having Protective Flame Enclosing Or Flame Stabilizing Structure Patents (Class 431/350)
  • Patent number: 7410288
    Abstract: A fluid mixing device (1) includes a chamber (3) and a bluff body (4) defining one end of the chamber (3). A first fluid inlet (5) is located toward an opposite end of the chamber (3) from the bluff body (4) and arranged to direct fluid toward the bluff body (4). A region substantially surrounding the bluff body (4) has a flow divider (8) defining second fluid inlet(s) (11) to the chamber (3) and mixed fluid outlets (12) from the chamber (3). A fluid flow from the first fluid inlet (5) and/or from the second fluid inlet (11) establishes a recirculating vortex system (14) within the chamber and results in a mixture of fluids from the first fluid inlet (5) and the second fluid inlet(s) (11) being directed through the mixed fluid outlets (12).
    Type: Grant
    Filed: December 24, 1999
    Date of Patent: August 12, 2008
    Assignee: Luminis Pty. Ltd.
    Inventors: Richard Malcolm Kelso, Peter Vernon Lanspeary, Graham J. Nathan, Steven J. Hill, Jordan James Parham, Graham Kelly, Philip Robert Edward Cutler, Moohd Ghazali Budrulhisham
  • Patent number: 7407381
    Abstract: A combustion apparatus is disclosed that improves oxidation efficiency without increasing either combustion apparatus size or residence time, where the apparatus includes a combustion zone having a static mixing zone along a length of the combustion zone.
    Type: Grant
    Filed: October 21, 2004
    Date of Patent: August 5, 2008
    Assignee: PAC, LP
    Inventor: Franek Olstowski
  • Publication number: 20080176177
    Abstract: In a flame arrester arrangement which is formed from two metal strips (8, 9) which are wound together to form a disk having an approximately circular outer circumference and of which a first metal strip (8) is a smooth strip and the second metal strip (9) is a fluted strip having defined fluting, the two strips (8, 9), by bearing against one another, forming defined gaps (11) for passage of a fluid and being held in position relative to one another by fixing pins inserted into radial bores (6), the radial bores (6) can be incorporated without deforming the gaps (11) even in the region of the bores (6) by virtue of the fact that the bores (6) are incorporated by spark erosion without deforming the fluting formed in the second metal strip, such that the gaps (11) are also present in the region of the bores (6) in the manner defined by the fluting.
    Type: Application
    Filed: May 24, 2007
    Publication date: July 24, 2008
    Inventor: Christoph Leinemann
  • Publication number: 20080131828
    Abstract: In an all primary combustion burner, a partition plate that demarcates a mixing chamber between the partition plate and a bottom wall section of a burner main body and a distributing plate that sections a space between the partition plate and the combustion plate into a first distributing chamber and a second distributing chamber are provided in the burner main body to cause a fuel gas and a primary air to flow into the mixing chamber. A pressure loss is minimized to make it possible to satisfactorily mix the fuel gas and the primary air. An outlet is formed on a downstream side of the partition plate. A guide plate section that extends to the downstream side while inclining in a normal direction, which approaches the bottom wall section of the burner main body, from an edge on the upstream side of the outlet, is provided in the partition plate.
    Type: Application
    Filed: November 28, 2007
    Publication date: June 5, 2008
    Applicant: RINNAI CORPORATION
    Inventors: Takashi Ojiro, Yoshihiko Takasu
  • Publication number: 20080085824
    Abstract: The invention discloses a device for folding and bonding plastic-laminated pre-cut blanks, in particular PE-laminated cardboard packages for beverages, comprising a peeling station for selectively peeling off a plastic lamination of a pre-cut blank; a creasing station for production of a folding line in a blank; a heating station for selectively heating up a plastic lamination on a blank that is to be bonded; a folding station for folding a blank about a folding line; a pressing station for pressing and bonding a folded blank; and conveying means for conveying blanks through the stations. The heating station comprises a burner having an oblong burner chamber which is provided on its top with a series of flame openings arranged one behind the other in the axial direction, for permitting flames to exit the chamber, and a liquid cooling system.
    Type: Application
    Filed: September 28, 2007
    Publication date: April 10, 2008
    Applicants: FORTUNA SPEZIALMASCHINEN GMBH, INTERNATIONAL PAPER BOX MACHINE COMPANY
    Inventors: Dieter Sprandel, Hans Lassnig, Markus Hoffmann, Werner Wattinger
  • Publication number: 20080083537
    Abstract: A downhole burner for a steam generator includes an injector and a cooling liner. Steam enters the burner through holes in the cooling liner. Combustion occurring within the cooling liner heats the steam and increases its quality and may superheat it. The heated, high-quality steam and combustion products exit the burner and enter an oil-bearing formation to upgrade and improve the mobility of heavy crude oils held in the formation. The injector includes a face plate, a cover plate, an oxidizer distribution manifold plate, and a fuel distribution manifold plate. The cooling liner has an effusion cooling section and effusion cooling and jet mixing section. The effusion cooling section includes effusion holes for injecting steam along the cooling liner surface to protect the liner. The effusion cooling and jet mixing section has both effusion holes and mixing holes for injecting steam further toward central portions of the burner.
    Type: Application
    Filed: October 8, 2007
    Publication date: April 10, 2008
    Inventors: Michael Klassen, Ponnuthurai Gokulakrishan, Casey Fuller, Andrew Hamer, John E. Langdon, Charles H. Ware
  • Patent number: 7354265
    Abstract: High-pressure air is discharged in the form of jets moving at a high velocity from nozzles mounted on a ring around the interior of the flare stack, placed at a predetermined distance from the flare tip and the portion of the surrounding stack wall downstream of the jets is perforated with air passages to admit atmospheric air. The high-velocity air movement induces a larger volume of air from the atmosphere to enter the stack where it rises to the flame zone, thereby lifting the flame and enhancing turbulent mixing of air and gas in the flame zone. Adequate stoichiometric amounts of oxygen to assure complete combustion are determined by measuring any variations of the mass flow rate of the fuel gas and/or undesired chemical and effecting a corresponding adjustment of an air flow control valve to admit a predetermined amount of pressurized air and/or atmospheric air to the flaring tip.
    Type: Grant
    Filed: December 2, 2004
    Date of Patent: April 8, 2008
    Assignee: Saudi Arabian Oil Company
    Inventors: Mazen M. Mashhour, Rashid Khan
  • Patent number: 7322820
    Abstract: A multiple fingered burner includes controls for continuity of gas flow and ignition throughout all of the ports peripherally positioned around the contoured wall of the burner body. A plurality of burner parts are nested together with an indexer limiting insertion to at least one predetermined alignment in order to avoid improper fit or alignment between adjacent burner parts. In addition, the peripherally positioned ports are covered by a laterally extending lip of a cap, and at least one of the parts includes recesses adjacent the laterally extending lip to provide ignitable gas flow passages along the peripheral wall of the burner that maintain continuity of ignition at adjacent burner ports.
    Type: Grant
    Filed: November 8, 2001
    Date of Patent: January 29, 2008
    Assignee: BSH Home Appliances Corporation
    Inventors: Jeffrey A. Welton, Ralph E. Jennings, Hans Daerendinger
  • Patent number: 7303388
    Abstract: Combustion system comprising a furnace having a thermal load and a combustion atmosphere disposed therein; one or more fuel lances adapted to inject fuel into the combustion atmosphere; and one or more igniters associated with the one or more fuel lances and adapted to ignite the fuel injected by the one or more fuel lances into the combustion atmosphere.
    Type: Grant
    Filed: July 1, 2004
    Date of Patent: December 4, 2007
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Mahendra Ladharam Joshi, Aleksandar Georgi Slavejkov, Xianming Jimmy Li
  • Publication number: 20070231761
    Abstract: A furnace is heated by a burner that can be selectively operated by either air-fuel or oxy-fuel combustion. The burner comprises a conduit for fuel, a conduit for air, a conduit for oxidant, and control means for regulating flow through the air and oxidant conduits. An air-fuel fired furnace can be modified by addition of the oxidant and fuel conduits and the control means for regulating flow through air and oxidant conduits.
    Type: Application
    Filed: April 3, 2006
    Publication date: October 4, 2007
    Inventors: Lee Rosen, Michael F. Riley, Curtis L. Bermel, Hisashi Kobayashi
  • Patent number: 7249946
    Abstract: The invention relates to a thermal generator comprising a furnace tube (2) wherein a fuel is burnt, recombustion means (14, 15) for reducing the nitrogen oxides content present in said fumes and means (3) for recovering the heat of the fumes resulting from said combustion. The invention is characterized in that recombustion means (14, 15) are arranged in containment means (11).
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: July 31, 2007
    Assignee: Institut Francais du Petrole
    Inventors: Gérard Martin, Willy Nastoll, John Roesler
  • Patent number: 7241138
    Abstract: In a burner (1) having an interior space (22) surrounded by at least one shell (8, 9) in which burner (1) fuel is injected through fuel nozzles (6) arranged at the burner shells (8, 9) into a combustion air stream (23) flowing within the interior space (22), the fuel/air mix which is formed flows to a flame front (3) in a combustion chamber (2) within a delay time (?), where it is ignited, the formation of combustion-driven thermoacoustic oscillations is avoided by virtue of the fact that means (24), which allow fuel to be injected into the combustion air stream (23) via at least two fuel injection holes (25) distributed over the length of the means (24) are arranged so as to project from the burner base (27) into the interior space (22) substantially in the direction of the combustion chamber (2), so that the delay time (?) between injection of the fuel and its combustion at the flame front (3) corresponds to a distribution (12) which avoids combustion-driven oscillations in premix operation.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: July 10, 2007
    Assignee: ALSTOM Technology Ltd.
    Inventors: Peter Flohr, Christian Oliver Paschereit
  • Patent number: 7214055
    Abstract: A convertible burner for gas-fueled cigarette pocket lighters for use with flint and wheel ignition, the burner including a burner body having a central gas fuel passageway and an air inlet channel in fluid communication with the central passageway and may have a plurality of integrally formed passageways around the periphery of the burner body. An air control structure in the form of a collar is movable to a first position with respect to the burner body to close the air inlet channel and form a post-mix burner for flint and wheel ignition, and to a second position with respect to the burner body to admit air via the air inlet channel to form a pre-mix burner after ignition. The relative movement can be longitudinal or peripheral, and the peripheral movement can be circumferential. In one embodiment, the collar surrounds and is immediately adjacent to the air inlet channel.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: May 8, 2007
    Assignee: Zippo Manufacturing Company
    Inventors: Ronald J. Meister, Charles J. Duke
  • Patent number: 7204688
    Abstract: Gas burner for a dryer including a gas nozzle for receiving, and injecting gas, a mixing tube for mixing the gas injected from the gas nozzle and primary air, igniter fitted to an outlet of the mixing tube for igniting the gas mixed with the primary air coming out of the outlet of the mixing tube, and a flame holder fitted to the outlet of the mixing tube having flame holes for splitting, and ejecting the gas mixed with the primary air in burning the gas, thereby forming shorter flame lengths, and securing stability of the flame by enhancing an initial igniting capability, and splitting the flame into many parts to increase introduction of secondary air into the flame.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: April 17, 2007
    Assignee: LG Electronics Inc.
    Inventor: In Hee Han
  • Patent number: 7189073
    Abstract: A burner with staged fuel injection includes at least two separate stages (4a, 4b) for fuel injection arranged along the swirl body (1). The burner is distinguished in that, between the first and the second stage (4a, 4b), a separating element (8) is provided, which extends in the direction of the combustion chamber (3) and separates the combustion air flow which enters in the region of the first stage (4a) from the combustion air flow which enters in the region of the second stage (4b). The burner can be operated with low combustion pulsations even in the case of low burner powers.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: March 13, 2007
    Assignee: ALSTOM Technology Ltd.
    Inventors: Douglas Pennell, Adnan Eroglu
  • Patent number: 7182594
    Abstract: A burner for use with fireplace gas logs includes a burner pan having a gas burner extending across it. A flame control plate is located in the burner pan above the burner. The flame control plate has an opening located in it which is partially covered by a damper. The damper can be moved to cover various portions of the opening which allows directing the burner flame to give the desired effect in the fireplace logs. By installing the burner assembly in a particular manner the fireplace logs can be made to look substantially like real burning logs.
    Type: Grant
    Filed: February 8, 2006
    Date of Patent: February 27, 2007
    Inventor: Dannie O. Malafouris
  • Patent number: 7175423
    Abstract: An apparatus and method for using staged air combustion. The apparatus includes a burner body (10) secured to a port block (42), and a fuel passageway (12) extending through the burner body (10), terminating in a fuel nozzle (22), which injects fuel into the burner throat (40). Primary air jets (20) are configured to inject primary air into a primary combustion region (24), which is normally in the burner throat (40). A dish with a dish surface (28) is connected to the burner throat (40); the dish surface (28) extending in a divergent angle with respect to a burner centerline (35). Secondary air jets (34) are connected to the air passageway (14) and extend through the port block (42). The secondary air jets (34) inject secondary air into a secondary combustion region (38), which may be at the dish surface (28) or the hot face (30) of the burner.
    Type: Grant
    Filed: October 26, 2000
    Date of Patent: February 13, 2007
    Assignee: Bloom Engineering Company, Inc.
    Inventors: Stephen P. Pisano, Anthony G. Fennell, John R. Hemmerlin, Glenn W. Baggley, John C. Dormire
  • Patent number: 7172413
    Abstract: A gas combustion apparatus of a laundry dryer is provided, by which an initial ignition power is improved to enhance an ignition property. The gas combustion apparatus includes a gas supply; a mixing pipe, having a mixing passage extending from an inlet end to an outlet end, for mixing the supplied gas with primary air, the primary air and gas entering the mixing passage at the inlet end and a gas-and-air mixture exiting the mixing passage at the outlet end; and a flame holder, disposed at the outlet end of the mixing pipe, for separating the gas-and-air mixture exiting the mixing pipe into a complex plurality of jetted streams.
    Type: Grant
    Filed: December 3, 2003
    Date of Patent: February 6, 2007
    Assignee: LG Electronics Inc.
    Inventors: In Hee Han, Seong Hai Jeong, Soo Won Park
  • Patent number: 7168949
    Abstract: A combustor assembly includes a combustor vessel having a wall, a proximate end defining an opening and a closed distal end opposite said proximate end. A manifold is carried by the proximate end. The manifold defines a combustion products exit. The combustion products exit being axially aligned with a portion of the closed distal end. A plurality of combustible reactant ports is carried by the manifold for directing combustible reactants into the combustion vessel from the region of the proximate end towards the closed distal end.
    Type: Grant
    Filed: May 11, 2005
    Date of Patent: January 30, 2007
    Assignee: Georgia Tech Research Center
    Inventors: Ben T. Zinn, Yedidia Neumeier, Jerry M. Seitzman, Jechiel Jagoda, Ben-Ami Hashmonay
  • Patent number: 7162864
    Abstract: A method of controlling NOx emission from combustors. The method involves the controlled addition of a diluent such as nitrogen or water vapor, to a base fuel to reduce the flame temperature, thereby reducing NOx production. At the same time, a gas capable of enhancing flame stability and improving low temperature combustion characteristics, such as hydrogen, is added to the fuel mixture. The base fuel can be natural gas for use in industrial and power generation gas turbines and other burners. However, the method described herein is equally applicable to other common fuels such as coal gas, biomass-derived fuels and other common hydrocarbon fuels.
    Type: Grant
    Filed: November 4, 2003
    Date of Patent: January 16, 2007
    Assignee: Sandia National Laboratories
    Inventors: Robert W. Schefer, Jay O Keller
  • 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: 7094049
    Abstract: The present invention provides a quartz glass single hole nozzle for feeding fluid capable of performing high-precision control of a flow rate, a burner for heat processing equipped with the quartz glass single hole nozzle, a quartz glass multihole burner head for feeding fluid preferably used in flame processing or the like, and a quartz glass burner for heat processing equipped with the multihole burner. By using the nozzle, even if a distal end portion of the quartz glass burner, namely the nozzle is broken by contact with a workpiece or the like, it is enough to only replace the broken nozzle with a new one without a necessity for replacing the entire expensive quartz glass burner. When applying the nozzle to a metal burner, there can be given usefulness of the quartz glass such as heat resistance and contamination resistance or the like.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: August 22, 2006
    Assignees: Atock Co., Ltd., Shin-Etsu Quartz Products Co., Ltd.
    Inventors: Toru Mizuno, Hirokazu Mizuno, Ichiro Yanase, Hyung-Bae Kim
  • Patent number: 7086855
    Abstract: The invention is an apparatus that is a synergistic combination of a windshield and a pilot light assembly for a gas burner heater. The apparatus provides reliable operation of the gas burner heater in high air flow conditions, where the air flow would normally cause the pilot light to be extinguished. The windshield, which is a partially perforated tubular chamber, provides a protected zone against high velocity air infusion for the entire pilot light assembly. The apparatus works in concert with the pilot light assembly, which also has components that provide protection from wind and can be quickly removed allowing quick cleaning and easy maintenance. The major components of the pilot light assembly are a pilot light orifice with a flame, a vented pilot housing (stack), a flame deflector cap, a pilot light gas line, a thermocouple with connecting electrical leads, a pilot base, a mounting bracket, and a windshield that surrounds the pilot light and the thermocouple.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: August 8, 2006
    Assignee: Gas-Fired Products, Inc.
    Inventors: Martin Brice, Frank W. MacIntosh
  • Patent number: 7017572
    Abstract: A gas burner assembly for connection to a source of gas includes a burner body including at least one receptacle, a burner cap positioned on the burner body, at least two isolation walls coupled to the burner body, and at least one projection extending from the burner cap. The projection is configured to allow substantially uniform gas distribution through a plurality of burner ports at a first gas input rate, and configured to limit the gas distribution to at least one burner port at a second input rate greater than the first input rate input rate.
    Type: Grant
    Filed: May 27, 2003
    Date of Patent: March 28, 2006
    Assignee: General Electric Company
    Inventor: Paul Bryan Cadima
  • 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: 6969251
    Abstract: A burner (1) for heat generation, in particular in a gas turbine, is disclosed as well as a method for the stabilization of the flame of a burner (1). The burner (1) comprises inlet openings (3) for a combustion air stream, at least a swirl generator (2) for the combustion air stream and one or more first fuel supplies (4) with first fuel outlet openings (5) for injection of fuel into the combustion air stream. At least one resonance tube (6) with an open (7) and an essentially closed end (8) is arranged in or at the burner (1), whose closed end (8) is positioned in the region of a flame front (9) which forms during operation of the burner (1) on the side of the burner (1). An outlet opening (10) of a supply (11) for a compressible medium is arranged at the open end (7) of the resonance tube (6).
    Type: Grant
    Filed: October 10, 2003
    Date of Patent: November 29, 2005
    Assignee: ALSTOM Technology Ltd
    Inventors: Marcel Stalder, Majed Toqan
  • Patent number: 6966769
    Abstract: A gaseous oxygen resonance igniter includes a body with a first inlet for gaseous oxygen incorporating a supersonic nozzle. An outlet from the body incorporates an orifice of predetermined size to maintain a desired pressure in the body. An aperture in the body opposite the first inlet provides a port to a ceramic resonance cavity. A ceramic bleed disc is engaged at a second end of the resonance cavity. An end cap incorporates a plenum adapted to receive high temperature oxygen flow from the resonance cavity through the bleed disc. An exhaust port is connected to the plenum for the high temperature oxygen which flows to a mixing chamber which introduces pilot fuel for ignition as a combustion initiation torch.
    Type: Grant
    Filed: April 5, 2004
    Date of Patent: November 22, 2005
    Assignee: The Boeing Company
    Inventors: Joshua E. Elvander, Steven C. Fisher, Shinjiro Miyata
  • Patent number: 6951456
    Abstract: A generally toroidal counterflow heat exchanger is the main element of a combustor that operates at a micro scale. The combustor includes a central combustion region with openings to a reactant gas channel and an exhaust gas channel. The reactant channel and exhaust channels are coiled around each other in a spiral configuration that reduces heat loss. An electric current microgenerator is similar and also includes a thermoelectric active wall composed of n-type and p-type thermoelectric elements as part of a channel wall of the microcombustor. The thermoelectric active wall includes fins configured to increase the temperature differential across the thermoelectric elements relative to the temperature difference between the thermoelectric elements and the reactant and exhaust gases. A method of monolithically fabricating such microdevices by electrodepositing multiple layers of material is also provided.
    Type: Grant
    Filed: July 29, 2003
    Date of Patent: October 4, 2005
    Assignee: University of Southern California
    Inventors: Adam L. Cohen, Paul D. Ronney, Uri Frodis, Lars Sitzki, Eckart H. Meiburg, Steffen Wussow
  • Patent number: 6929470
    Abstract: Embodiments of the present invention are directed to a low NOx duct burner or heater for efficiently heating turbine exhaust gases (TEG) in a less polluting manner. In one embodiment, a heater for heating a gaseous stream flowing in a downstream direction through a duct comprises a heating gas supply pipe extending at least partially across the duct. The heating gas supply pipe includes a plurality of spaced-apart gas pipe outlets to discharge a portion of a heating gas into the duct generally in the downstream direction. A flame shield extends from a location at or near the heating gas supply pipe at least partially across the duct. A plurality of gas supply spuds are disposed upstream of the flame shield. The gas supply spuds include a plurality of gas spud outlets to discharge another portion of the heating gas into the duct.
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: August 16, 2005
    Assignee: Coen Company, Inc.
    Inventors: Vladimir Lifshits, Kenneth Y. Ahn
  • Patent number: 6929469
    Abstract: An apparatus includes a furnace structure defining a reaction zone. A burner structure communicates with the reaction zone through a burner port. The burner port is centered on a burner axis and has a radius. A fuel inlet structure communicates with the reaction zone through a fuel port. The fuel port is centered on a fuel port axis that is spaced radially from the burner axis a distance within a range from about twice the radius to about six times the radius. The fuel port axis is skewed relative to the burner axis to direct the fuel emerging from the fuel port to flow into the reaction zone along a spiral flow path.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: August 16, 2005
    Assignee: North American Manufacturing Company
    Inventors: Bruce E. Cain, Thomas F. Robertston, Thomas B. Neville, Mark C. Hannum, John N. Newby
  • Patent number: 6929467
    Abstract: A combustion chamber assembly for a heating device includes a combustion chamber housing which forms a combustion chamber, and an ignition member which projects with an ignition section into the combustion chamber. An evaporator medium, surrounding the combustion chamber radially outward at least regionally, is provided on an outer circumferential wall, bounding the combustion chamber radially outward, of the combustion chamber housing, into which evaporator medium fuel to be evaporated is introduced through the outer circumferential wall.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: August 16, 2005
    Assignee: J. Eberspacher GmbH & Co. KG
    Inventors: Walter Blaschke, Andreas Collmer
  • Patent number: 6916173
    Abstract: An apparatus for combusting a fuel and air mixture within a combustion chamber, particularly a combustion chamber of a gaseous fuel fired water heater. A pressure relief void is intentionally formed so that a combustion chamber forms communication with a surrounding environment through a peripheral gap between the combustion chamber wall and a vessel wall of a vessel. During ignition, the pressure relief void allows pre-combustion fluid within the combustion chamber to escape through both the pressure relief void and the exhaust flue. The pressure relief void reduces or eliminates undesirable noise associated with start-up and operation of conventional water heater combustion chambers with premixed burner systems. The pressure relief void of this invention is sized large enough to relieve an ignition pressure pulse from the combustion chamber upon ignition and yet is sized small enough to prevent a combustion flame from passing through the pressure relief void during ignition.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: July 12, 2005
    Assignee: Schott AG
    Inventors: Philip Carbone, Karen Benedek, Judith Reich, Dewi Bramono, Herwig Scheidler
  • Patent number: 6887067
    Abstract: A catalytically operating burner with a catalyzer structure (4), useful in particular for a gas turbine system, has a heat-resistant carrier material (10) that forms the walls of several adjoining channels (13). The channels (13) pervade the catalyzer structure (4) in longitudinal direction and permit that a gaseous reaction mixture flows through the catalyzer structure (4). The walls are coated at least in part with a catalyst. In order to improve the catalytic conversion within the catalyzer structure (4), communicating openings (14) are constructed in the walls between an inlet end and an outlet end of the catalyzer structure (4). Adjoining channels (13) are able to communicate with each other through the communicating openings (14).
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: May 3, 2005
    Assignee: Alstom Technology LTD
    Inventors: Timothy Griffin, Peter Jansohn, Verena Schmidt, Dieter Winkler
  • Patent number: 6880549
    Abstract: A combustion system for a portable forced air heater having two frusta-conical sections attached to a circular burner tube, wherein each frusta-conical section has pre-determined vent hole patterns that allow the gas heater to have a variable burn rate.
    Type: Grant
    Filed: January 26, 2004
    Date of Patent: April 19, 2005
    Assignee: Topp Intellectual Properties, Inc.
    Inventor: Daniel P. Topp
  • Patent number: 6881052
    Abstract: A device for heating hydrogen storage canister includes a canister containing chamber for accommodation of at least one hydrogen storage canister, a catalyst bed arranged in the canister containing chamber for catalysis. A blowing device provides an air flow through an air flow leading pipe to a nozzle section which is connected with a heating gas drawing pipe to the catalyst bed. A heating fuel storage tank supplies heating fuel which is conveyed to the nozzle section through a heating fuel supplying pipeline, a coiled pipe and a heating fuel conveying pipe in sequence. When the air flow flows through the nozzle section, the heating fuel is drawn into the nozzle section to mix with the air flow, forming a heating gas. The heating gas is atomized by the nozzle section and flows to the catalyst bed where the heating gas is catalyzed to burn to generate a hot gas to heat the hydrogen storage canister.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: April 19, 2005
    Assignee: Asia Pacific Fuel Cell Technologies, Ltd.
    Inventors: Jefferson Y S Yang, Yingjeng James Li
  • Patent number: 6872073
    Abstract: A burner arrangement for a heating device, particularly a vehicle heating device, comprising a combustion chamber (18) and a flame tube (22) conducting the combustion products away from the combustion chamber (18), having an inlet region (28) near the combustion chamber (18) at which combustion products enter the flame tube (22) and an outlet region (36) at which combustion products leave the flame tube (22). At least one intermediate outlet region (42) between the inlet region (28) and the outlet region (36), in which intermediate outlet region (42) a portion of the combustion products can emerge from the flame tube (22).
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: March 29, 2005
    Assignee: J. Eberspacher GmbH & Co. KG
    Inventors: Andreas Collmer, Patric Schlecht, Jürgen Wagner
  • Patent number: 6866503
    Abstract: A nozzle comprising a nozzle body having an inlet face, an outlet face, and an inlet flow axis passing through the inlet and outlet faces, and two or more slots extending through the nozzle body from the inlet face to the outlet face. Each slot has a slot axis and the slot axis of at least one of the slots is not parallel to the inlet flow axis of the nozzle body. In another embodiment, the nozzle comprises a nozzle body having an inlet face, an outlet face, and an inlet flow axis passing through the inlet and outlet faces, and two or more slots extending through the nozzle body from the inlet face to the outlet face, each slot having a slot axis, wherein none of the slots intersect other slots and all of the slots are in fluid flow communication with a common fluid supply conduit. The nozzles may be used to inject secondary fuel in a burner system having a central burner combusting a primary fuel surrounded by secondary fuel injection nozzles.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: March 15, 2005
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Mahendra Ladharam
  • Patent number: 6860734
    Abstract: An inshot gas burner having an overall length of less than four inches that is capable of delivering between 5,000 and 5,800 Btus per unit length of burner per hour. The burner venturi section with a flame retainer positioned at its outlet that produces a firing rate of at least 9,900 Btus per inch of diffuser length.
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: March 1, 2005
    Assignee: Carrier Corporation
    Inventors: Ninev Karl Zia, Chi Ming Ho, Brian A. Reeves
  • Patent number: 6857870
    Abstract: A combustion system for a portable forced air heater having two frusta-conical sections attached to a circular burner tube, wherein each frusta-conical section has pre-determined vent hole patterns that allow the gas heater to have a variable burn rate.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: February 22, 2005
    Assignee: Topp Construction Services, Inc.
    Inventor: Daniel P. Topp
  • Publication number: 20040229181
    Abstract: A setting tool assembly for driving fastening elements in constructional components includes a combustion energy-operated setting tool (10), a fuel source (11), a metering head (20) for metering a predetermined amount of liquid fuel or gaseous fuel stored in the fuel source (11) into the combustion chamber (12) of the setting tool (10), the metering head (20) having an inlet (23) communicating with the fuel source (11), at least two outlets (42, 52, 62, 72), and at least two metering valves (40, 50, 60, 70) which connect the inlet (23) with respective outlets and which have different volumes of metering chambers (41, 51, 61, 71), and a device for selectively connecting the outlets of the metering head (20) with the combustion chamber (12).
    Type: Application
    Filed: February 13, 2004
    Publication date: November 18, 2004
    Inventors: Lothar Voelker, Iwan Wolf
  • Patent number: 6811395
    Abstract: A combustion chamber assembly, in particular for a vehicle heating device, has combustion chamber housing in which a combustion chamber is bounded by a combustion chamber outer wall, the combustion chamber having a combustion chamber outlet aperture for the exit to a flame tube of exhaust gases produced during combustion, furthermore comprising a deflecting arrangement for deflecting at least a partial stream of the exhaust gases leaving the combustion chamber to flow along at least a partial region of the outer side of the combustion chamber outer wall facing away from the combustion chamber.
    Type: Grant
    Filed: January 9, 2003
    Date of Patent: November 2, 2004
    Assignee: J. Eberspacher GmbH & Co. KG
    Inventor: Patric Schlecht
  • Patent number: 6810678
    Abstract: An internal combustion engine includes an insulated combustion chamber having a fuel mixture inlet and a spark plug nearby the inlet. A series of baffles is configured within the combustion chamber to absorb a shockwave caused by ignition of fuel mixture by the spark plug. A turbine receives reduced-pressure combustion gases from an exhaust-side of the baffles and there is a power takeoff at the turbine.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: November 2, 2004
    Inventor: Chi Lam Luk
  • Patent number: 6786716
    Abstract: A microcombustor comprises a microhotplate and a catalyst for sustained combustion on the microscale. The microhotplate has very low heat capacity and thermal conductivity that mitigate large heat losses arising from large surface-to-volume ratios typical of the microdomain. The heated catalyst enables flame ignition and stabilization, permits combustion with lean fuel/air mixtures, extends a hydrocarbon's limits of flammability, and lowers the combustion temperature. The reduced operating temperatures enable a longer microcombustor lifetime and the reduced fuel consumption enables smaller fuel supplies, both of which are especially important for portable microsystems applications. The microcombustor can be used for on-chip thermal management and for sensor applications, such as heating of a micro gas chromatography column and for use as a micro flame ionization detector.
    Type: Grant
    Filed: February 18, 2003
    Date of Patent: September 7, 2004
    Assignee: Sandia Corporation
    Inventors: Timothy J. Gardner, Ronald P. Manginelli, Patrick R. Lewis, Gregory C. Frye-Mason, Chris Colburn
  • Publication number: 20040166451
    Abstract: A combustion burner comprises an air supply case connected to an air supply mouth formed at the rear end part to a tip portion thereof, supplying air from an air supply equipment; a nozzle body attached so as to cover a tip portion of the air supply case, having a jet nozzle formed in a center part of the nozzle body; a fuel nozzle installed into the nozzle body so as to supply air from the air supply case from the air jet hole, placed between the tip perimeter part of the fuel nozzle and the jet hole, having a fuel supply passage which is formed in the shape of a conical trapezoid and supplies air from a tip portion thereof; a plurality of air guide holes air guide holes provided between an outer circumferential portion of the fuel nozzle and the nozzle body so as to supply spiral air from the air jet hole; a fuel supply support member installed into the fuel supply passage and supplies fuel from at least two fuel supply holes at an opposite spiral air current from the tip end of the fuel nozzle; and at leas
    Type: Application
    Filed: February 26, 2003
    Publication date: August 26, 2004
    Inventor: Masahiro Watanabe
  • Patent number: 6780005
    Abstract: A funnel-shaped concentrator that is attachable to the outlet of a standard cast iron burner is disclosed. The concentrator directs the flame produced by the burner toward the outlet of the concentrator causing the flame emanating therefrom to be directed toward the container being labeled. One or more layers of refractory insulating material are placed along the sides of the concentrator, the body of the burner and the top and bottom surfaces of the concentrator so as to minimize the amount of infrared radiation emanating therefrom. In this manner, the containers being labeled or on which a label has been affixed are exposed only to the flame being directed outwardly from the outlet of the concentrator and the amount of infrared radiation to which the containers is exposed is greatly reduced.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: August 24, 2004
    Assignee: Smurfit-Stone Container Corporation
    Inventor: Leonard J. Kessler
  • Publication number: 20040161720
    Abstract: A gas combustion apparatus of a laundry dryer is provided, by which an initial ignition power is improved to enhance an ignition property. The gas combustion apparatus includes a gas supply; a mixing pipe, having a mixing passage extending from an inlet end to an outlet end, for mixing the supplied gas with primary air, the primary air and gas entering the mixing passage at the inlet end and a gas-and-air mixture exiting the mixing passage at the outlet end; and a flame holder, disposed at the outlet end of the mixing pipe, for separating the gas-and-air mixture exiting the mixing pipe into a complex plurality of jetted streams.
    Type: Application
    Filed: December 3, 2003
    Publication date: August 19, 2004
    Inventors: In Hee Han, Seong Hai Jeong, Soo Won Park
  • Patent number: 6769903
    Abstract: The present invention relates to a method of operating a burner, which comprises at least one first fuel supply conduit (5) with a first group of fuel outlet openings (6), essentially arranged in the direction of a burner longitudinal axis (3), for a first premix fuel quantity and one or a plurality of second fuel supply conduits (7) with a second group of fuel outlet openings (8), essentially arranged in the direction of the burner longitudinal axis (3), for a second premix fuel quantity, it being possible to admit fuel to the second fuel supply conduits (7) independently of the first fuel supply conduit (5). In the method, both fuel supply conduits (5, 7) are operated with the same fuel. By means of the present method of operating a burner, optimum mixing conditions can be set even in the case of different loads, gas qualities or gas preheat temperatures.
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: August 3, 2004
    Assignee: Alstom Technology LTD
    Inventors: Adnan Eroglu, Jaan Hellat, Peter Stuber
  • Patent number: 6769907
    Abstract: A fire display apparatus comprises a structural base plate supported in a horizontal attitude within a clay, or other fire resistant bowl. The base plate supports an annular burner tube on a outer, upwardly facing surface, the burner tube providing outwardly directed plural burner apertures adapted for directing flames in an outward direction. The base plate also supports a burner fence positioned in spaced-apart relationship with the burner apertures and adapted for directing the flames upwardly away from the outer face of the base plate. Burner gas is conducted to the space between the bowl interior and the underside of the base plate. Here, gas valves and a flame sensor provide automated flame monitoring and control. A system control unit is heat insulated using standoffs, an insulating mat and a heat cage.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: August 3, 2004
    Inventor: Kevin Eugene Doud
  • Patent number: 6755644
    Abstract: A method and apparatus for combusting a fuel and air mixture within a combustion chamber, particularly a combustion chamber of a gaseous fuel fired water heater. A pressure relief void is intentionally formed so that a combustion chamber forms communication with a surrounding environment through means other than the exhaust flue and/or a fuel and/or air inlet. During ignition, the pressure relief void allows pre-combustion fluid within the combustion chamber to escape through both the pressure relief void and the exhaust flue. The pressure relief void reduces or eliminates undesirable noise associated with start-up and operation of conventional water heater combustion chambers with premixed burner systems. The pressure relief void of this invention is preferably sized large enough to relieve an ignition pressure pulse from the combustion chamber upon ignition and yet is sized small enough to prevent a combustion flame from passing through the pressure relief void during ignition and/or operational combustion.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: June 29, 2004
    Assignee: Schott Glas
    Inventors: Philip Carbone, Karen Benedek, Judith Reich, Dewi Bramono, Herwig Scheidler
  • Patent number: RE39425
    Abstract: A burner assembly is provided for combining oxygen and fuel to produce a flame. The burner assembly includes a burner block formed to include a flame chamber having inlet and outlet openings, a bypass structure for conducting oxygen outside of the flame chamber to the outlet opening of the flame chamber and structure for discharging fuel into the flame chamber formed in the burner block.
    Type: Grant
    Filed: October 17, 1997
    Date of Patent: December 12, 2006
    Assignee: Maxon Corporation
    Inventor: Curtis L. Taylor