Flame Enclosure Comprises, Or Conducts Heat To Heated Section Patents (Class 431/243)
  • Patent number: 10451279
    Abstract: A combustion chamber of a gas turbine with a combustion chamber wall to which effusion tiles are fastened which adjoin one another while forming a rim gap, with a seal being arranged in the area of said rim gap, characterized in that the effusion tiles at their rim facing the combustion chamber wall are provided with a bevel in order to form a sealing space, that a seal having a V-shaped cross-section is placed inside the sealing space and that the combustion chamber wall is provided with at least one recess to supply cooling air through the combustion chamber wall to that side of the seal facing the combustion chamber wall.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: October 22, 2019
    Assignee: Rolls-Royce Deutschland Ltd & Co KG
    Inventor: Max Staufer
  • Publication number: 20130344447
    Abstract: An oil premix burner comprising: a combustion element; a burner surface on the outer lateral surface; a distribution chamber below the burner surface; a central oil injection device; a combustion air channel connected to a blower situated upstream as well as an air heat exchanger for the preheating of the combustion air in the area of the burner surface. In each case, the annular space formed between the inner tube and the outer tube of all the double tube elements opens out into an annular-shaped collecting chamber, and the preheated combustion air, starting from the collecting chamber, flows inwards via a swirl-generating device into the area around the oil injection device into the distribution chamber.
    Type: Application
    Filed: June 19, 2013
    Publication date: December 26, 2013
    Applicant: ROBERT BOSCH GMBH
    Inventors: Antonio MEDEIROS, Raphael LANG, Rainer RAUSCH, Thomas GESCHWEND, Sadik CECEN, Hans-Joachim RIPPLINGER, Thorsten SCHROEDER, Juergen HETCHE
  • Publication number: 20130260326
    Abstract: An oil premix burner, having a burning element, a burner surface on the outer lateral surface, a distribution chamber below the burner surface, a central oil injection device, a combustion air duct connected to a fan situated upstream, and an air heat exchanger for preheating the combustion air in the area of the burner surface. The combustion quality and the robustness are optimized in an oil premix burner, in particular with respect to the modulation capability. It is provided that the air heat exchanger is composed of at least one double tube element including an inner tube, having inline throughflow, and an outer tube concentric to the inner tube. The air heat exchanger is situated above the burner surface and is composed of multiple parallel throughflow double tube elements symmetrically distributed over the circumference and which extend axis-parallel to the burning element at least over a portion of its length.
    Type: Application
    Filed: September 23, 2011
    Publication date: October 3, 2013
    Inventors: Paulo Jorge Ferreira Goncalves, Angelique Mosser, Rainer Rausch, Thomas Wissner
  • Patent number: 8444411
    Abstract: An incinerator (20) for disposing of boil-off gas on an LNG carrier comprises a combustion section (40) wherein the boil-off gas admitted at (42) is burned in the presence of combustion air admitted at (44), producing a flame (46) and combustion products (C). Dilution air (A) is delivered into the combustion section (40) and mixed with the combustion products (C) to produce a diluted mixture (M). The combustion section (40) has an inner wall (48) and an outer wall (50) together defining a first passage (52) through which the dilution air (A) is passed before being mixed with the combustion products (C), whereby the dilution air A cools the combustion section (40). The dilution air A in the first passage (52) also provides a thermally insulting layer limiting radial heat transmission from the combustion section (40). A proportion (AP) of the dilution air is mixed directly with the combustion products (C).
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: May 21, 2013
    Inventors: Simon Mark O'Connor, Richard James Price, Nigel Peter Webley, Mark Boss
  • Patent number: 8226405
    Abstract: The present invention relates to a full time regenerative type single radiant tube burner. The full time regenerative type single radiant tube burner includes a radiant tube type burner; a regenerating unit that regenerates exhaust gas heat generated from the burner and is used for preheating the intake combustion air; and an intake and exhaust switching device that passes the intake air and the exhaust gas to the regenerating unit and heat-exchanges them and simultaneously progresses the intake and exhaust processes of the burner to perform the full time combustion.
    Type: Grant
    Filed: January 26, 2010
    Date of Patent: July 24, 2012
    Assignee: Korea Institute of Energy Research
    Inventors: Sang Keun Dong, Je Bok Yang, Eun Kyeong Lee
  • Patent number: 8196388
    Abstract: The present invention relates to a heating device for exhaust gas in an internal-combustion engine, which is driven by using LPG, LNG, a volatile oil, a light oil, biodiesel or oxygenated hydrocarbon being DME, the device consisting of a catalyst reactor reformer, an exhaust gas suction section and the second fuel supply device. The exhaust gas suction section is mounted for using oxygen included in the exhaust gas. When the heating device is driven, air and fuels are supplied to the catalyst reactor and the second fuel supply device via a single tube when the heating device is heated. The present invention provides with a heating device for exhaust gas capable of securing the durability of a heating device for exhaust gas and minimizing the amount of air supplied from the outside to the combustion reforming device by excluding carbon depositions in a tube due to a prolysis of LPG, LNG, a volatile oil, a light oil, biodiesel or oxygenated hydrocarbon being DME, and a method for driving the device.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: June 12, 2012
    Assignee: Korea Institute of Energy Research
    Inventors: Jong-Soo Park, Young-Jae Lee, Wang-Lai Yoon, Ho-Tae Lee, Dong-Joo Seo, Sung-Ho Cho, Shin-Kun Lee, Seung-Hoon Choi, Kyung-Seun Yoo
  • Patent number: 8020377
    Abstract: The invention relates to an apparatus for producing hot gas with a first combustion chamber (2) to burn fuel (17). The first combustion chamber features an open (5) and a closed end (36), and the first combustion chamber has a fuel inlet (13) arranged at its closed end. A second combustion chamber (35) encloses the first combustion chamber, with the second combustion chamber featuring a discharge outlet (37) for the hot gas, and the second combustion chamber featuring a closed end at which an inlet for combustion air (39) is arranged.
    Type: Grant
    Filed: May 13, 2008
    Date of Patent: September 20, 2011
    Assignee: TWK Engineering Entwicklungstechnik GBR
    Inventors: Thomas Winter, Waldemar Karsten
  • Patent number: 7934926
    Abstract: An ejector, such as a venturi, facilitates the delivery of gaseous fuel to the combustion chamber of a burner. A blower forces air through the ejector, and the air flow produces a suction that draws fuel from a fuel inlet to produce a fuel-air mixture. The amount of fuel drawn from the fuel inlet is a function of the air flow such that a substantially constant fuel-air ratio is obtained over a range of air flow rates and temperatures without the need for a separate high-pressure fuel pump. The fuel-air mixture may be provided to a combustion chamber for combustion. Air from the blower may be pre-heated prior to entering the ejector, for example, using a heat exchanger that recovers some of the heat from the combusted fuel-air mixture. Air flow through the ejector may be conditioned, for example, by a swirler, to produce a tangential air flow that can increase fuel flow by increasing air velocity across the fuel inlet and/or produce a swirl-stabilized flame in the combustion chamber.
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: May 3, 2011
    Assignee: DEKA Products Limited Partnership
    Inventors: Kurt L. Kornbluth, Michael G. Norris
  • Patent number: 7748977
    Abstract: An igniter includes an igniter body provided with a liquefied gas reservoir, and a rod-like extension, which extends from the igniter body and has a flame port ejecting gas flame therethrough on its leading end. The base portion of the rod-like extension is supported for rotation with respect to the igniter body so that the angle made between the igniter body and the rod-like extension can be changed to change the direction of the flame port in a free state and locked when the igniting action is to be done.
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: July 6, 2010
    Inventors: Tetsuya Mochizuki, Makoto Sato, Takayuki Suzuki
  • Patent number: 7661420
    Abstract: A portable heat transfer apparatus comprises a mixture forming/supply device for producing a mixture of fuel gas and air, a heating unit including a heat collection casing, and a burner installed in the casing and formed with a combustion chamber having a flat surface. The burner includes a large number of holes formed on an upstream side thereof to extend up to the flat surface to allow the mixture injected into the chamber therethrough to combust in the chamber, and a porous solid radiant-heat conversion component to partly convert heat energy of exhaust gas from the combustion in the chamber into radiant heat energy. The conversion component defines at least a surface region of the chamber located opposite to a flame front produced close to the flat surface. The apparatus includes a heat-driven pump joined to the casing and receiving heat generated by the combustion, through the heat collection casing.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: February 16, 2010
    Inventor: Kenji Okayasu
  • Patent number: 7631640
    Abstract: A highly efficient radiant burner assembly (100) for use in a patio heater or the like in areas where people prefer or require low NOX emissions. The efficiencies are created through the use of a spherical burner element (116) that is either formed of a high temperature steel wire mesh or stamping containing apertures of a predetermined size to allow combustion to remain within the burner element and to not cause the temperature of the burner element to exceed the temperature at which NOX are developed. Coating the burner with a catalyst also aids the low emission combustion process. Additional efficiencies are provided by atomizing the fuel before it is mixed with air and by the use of a laminar flow heat exchanger (940) that utilizes a fluid media flowing in a helical coil condenser unit.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: December 15, 2009
    Assignee: Advanced Propulsion Technologies, Inc.
    Inventors: Peter Hofbauer, Yue Xin Huang
  • Publication number: 20090202956
    Abstract: A combustion chamber of a combustion system has a combustion space, a support structure, a support element, and a heat shield. The heat shield has at least two segments, and each segment includes a liner element facing the combustion space and has an edge region, a gap communicating with the combustion space being formed between edge regions of adjacent segments, and a retaining device. The retaining device fixes the respective liner element on the support structure via the support element and forms a flange region that fits over the edge region of the respective liner element. The retaining device forms a first cooling passage with the support element and has at least one through-opening in the flange region. A cooling gas flows through the through.opening from the first cooling passage to the edge region.
    Type: Application
    Filed: February 9, 2009
    Publication date: August 13, 2009
    Applicant: ALSTOM Technology Ltd
    Inventors: Stefan Tschirren, Daniel Burri, Andreas Abdon, Christian Steinbach
  • Publication number: 20090176178
    Abstract: A combustion apparatus such as a Diesel engine (16) in a motor vehicle (1) has an air inlet system (20,22) through which air can be drawn air from the atmosphere to the engine, a fuel supply system (28, 30, 32) for supplying fuel to the engine, and an exhaust system (34, 36, 38, 40, 42) for exhausting combustion gas from the engine to the atmosphere. A heat exchanger (48) is provided between the exhaust system and the fuel supply system so that heat is transferred from the exhaust gas to the fuel so as to warm the fuel and thus improve the combustion efficiency of the engine. When applied to a conventional layout of motor vehicle the heat exchanger can conveniently be disposed beneath the vehicle away from the engine compartment so as not to cause overcrowding thereof.
    Type: Application
    Filed: April 4, 2007
    Publication date: July 9, 2009
    Inventor: David Davies
  • Publication number: 20090075220
    Abstract: A combustion apparatus for operation with a fuel which is liquid at room temperature, in particular with a vegetable oil, wherein the combustion apparatus includes an evaporator device for evaporating the liquid fuel and a nozzle for ejection and for flame ignition of the evaporated fuel. The evaporator device is disposed in fluid communication with a fuel tray for preheating the evaporator device for a start of operation.
    Type: Application
    Filed: July 13, 2006
    Publication date: March 19, 2009
    Applicant: BSH BOSCH UND SIEMENS HAUSGERAETE GMBH
    Inventor: Elmar Stumpf
  • Patent number: 7316563
    Abstract: A combustor includes a combustor head with an integrated counter-flow heat exchanger. The combustor head defines a combustion chamber and has a surface accessible for external delivery of thermal energy. The counter-flow heat exchanger has a fuel channel extending between a fuel inlet and a fuel outlet coupled to the combustion chamber, an exhaust channel extending between an exhaust inlet coupled to the combustion chamber and an exhaust outlet, and a shared wall between the fuel channel and the exhaust channel for transfer of thermal energy therebetween.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: January 8, 2008
    Inventor: Daniel S. Marshall
  • Patent number: 6923642
    Abstract: The present invention is an improved a combustor incorporating a pre-mix/pre-evaporation chamber arranged and configured to produce both a cool portion and a hot portion that cooperate to vaporize a liquid fuel to produce a lean to low-rich combustion mixture that is ejected from chamber into the combustor where is then ignited to produce a stable non-sooting flame maintained substantially within a combustion zone that yields a clean hot exhaust stream for heating downstream process components or processes such as one or more components of an autothermal reformer (ATR).
    Type: Grant
    Filed: October 8, 2003
    Date of Patent: August 2, 2005
    Assignee: General Motors Corporation
    Inventors: Mohammed E. H. Sennoun, Daniel Miller
  • Patent number: 6840762
    Abstract: A small microcombustion heater which can realize reliable combustion. The heater has a premixed gas passage which reaches a combustion chamber, and a passage for a combustion gas drawn from the combustion chamber. The passages are arranged in a spiral form in a manner such that a heating wall is provided between the passages. The width of the premixed gas passage is a quenching distance or less, where the quenching distance is determined depending on the premixed gas. The heater has two outer faces for holding the spiral passages from both sides of the upper and lower edges of the heating wall, and at least one of the outer faces is a heating surface for emitting radiant heat. Typically, the spiral passages are placed between a heat-resisting heating plate and a heat insulating plate, and an outer face of the heat-resisting heating plate functions as the heating surface.
    Type: Grant
    Filed: April 21, 2003
    Date of Patent: January 11, 2005
    Assignees: Ishikawajima-Harima Heavy Industries Co., Ltd.
    Inventors: Kaoru Maruta, Toshiro Fujimori
  • Publication number: 20040265758
    Abstract: A method and device for changing the rate of density between fluid hydrocarbon fuels and combustion air prior to ignition and combustion in residential, commercial and industrial combustion mechanisms, by extracting heat from the mechanism's combustion zone or flue area to reduce the density of the fuel prior to delivery to the mechanism burner at a constant, pre-set operating temperature of between 100 degrees Fahrenheit and the fuel's flash point temperature, while at the same time providing means to control combustion air temperature to a level such as to increase air density and significantly changing the mass ratio of fuel mass versus combustion air mass, hence oxygen mass, without increasing combustion air volume or fuel volume, thereby improving combustion efficiency, heat transfer efficiency and reduction in harmful stack emissions.
    Type: Application
    Filed: July 8, 2003
    Publication date: December 30, 2004
    Inventor: William H. Velke
  • Patent number: 6814568
    Abstract: A superatmospheric combustion apparatus and a method of operating such an apparatus include providing a superatmospheric combustion device having a lean gas chamber, a combustor, a heat recovery section, and an exhaust, feeding lean gas to the lean gas chamber, providing a heat sink/pressure equalization chamber and a preheated air chamber within the combustion device, feeding pressurized ambient air to the heat sink/pressure equalization chamber, feeding preheated air to the preheated air chamber, exchanging heat from the lean gas chamber, the preheated air chamber, and the combustor to the pressurized ambient air in the heat sink/pressure equalization chamber, feeding the lean gas from the lean gas chamber to the combustor, feeding the preheated air from the preheated air chamber to the combustor, and combusting the lean gas and the preheated air in the combustor at superatmospheric pressure.
    Type: Grant
    Filed: July 17, 2001
    Date of Patent: November 9, 2004
    Assignee: Foster Wheeler USA Corporation
    Inventors: Lawrence J. McEvoy, John G. Jacobsen
  • Publication number: 20040058290
    Abstract: A burner for liquid fuel comprises a mixture chamber for producing a liquid fuel air mixture. The mixture chamber has a heating element, an air inlet for receiving air, the air inlet being configured so as to facilitate air flow over at least a part of the heating element, and a liquid fuel inlet. An atomizer is mounted in a path of flow of the liquid fuel air mixture formed by the mixture chamber. A combustion chamber for combusting the liquid fuel air mixture is provided. The combustion chamber has a flame holder, an ignition source located proximal the flame holder, and a combustion zone located downstream of the flame holder.
    Type: Application
    Filed: June 28, 2002
    Publication date: March 25, 2004
    Inventors: Joshua Mauzey, Leonhard Weschta
  • Publication number: 20040048211
    Abstract: The present invention relates to a catalytic combustion device comprising a main combustion zone (20, 200) including at least one catalytic section (5, 103) and at least one air/fuel mixing zone (11, 117), said mixing zone comprising at least one pressurized air inlet (1, 101) and injection means (12, 105) for injecting a liquid fuel.
    Type: Application
    Filed: June 6, 2003
    Publication date: March 11, 2004
    Inventors: Gerard Martin, Tidjani Niass, Jean-Francois Le Coz, Etienne Lebas
  • Patent number: 6676406
    Abstract: There is provided a catalytic combustion apparatus that allows power consumption of a carburetor heater to be significantly reduced, and allows a fuel consumption amount to be reduced. A catalytic combustion apparatus including: a fuel tank 1 for feeding fuel and others, an air feeding fan 5 for feeding air and others, a carburetor 8 for evaporating the above described fuel, a gas mixture space 15 that holds the above described evaporated fuel and the above described air, a catalytic combustion unit 17 adjacent to the above described gas mixture space, and a catalyst heating element 10 provided in the gas mixture space 15, characterized in that the catalyst heating element 10 has a first heating compartment 11 and a second heating element compartment 12 provided from upstream to downstream of a flow of the above described gas mixture, and that the compartments carry catalysts on all or part thereof and are provided with a first gas mixture vent 13 and a second gas mixture vent 14.
    Type: Grant
    Filed: July 26, 2002
    Date of Patent: January 13, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Motohiro Suzuki, Tatsuo Fujita, Tetsuo Terashima
  • Patent number: 6675586
    Abstract: In a heat shield arrangement, in which heat shield elements are arranged next to one another on a carrying structure and are anchored to the carrying structure, there is provision for a cooling-air duct, into which cooling air is fed and which the adjacent heat shield elements communicate with one another, to be formed by at least two adjacent heat shield elements between the carrying structure and the surface of the heat shield elements which faces away from the hot gas. What is achieved thereby is that the individual heat shield elements are interconnected to form continuous cooling-air ducts, with the cooling air introduced into the cooling-air ducts being collected and being led, for example, to a burner. Advantageously, the gaps between the heat shield elements are sealed off by sealing elements.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: January 13, 2004
    Assignee: Siemens Aktiengesellschaft
    Inventor: Hans Maghon
  • Patent number: 6669463
    Abstract: The present invention provides a combustor for a fuel processor which integrates a burner and a catalyst. The burner is utilized to quickly heat the catalyst to a light-off temperature to prepare it for normal operation. The heated catalyst is then used to react anode exhaust with air or cathode exhaust under normal operation.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: December 30, 2003
    Assignee: General Motors Corporation
    Inventors: Matthew J. Beutel, William H. Pettit, Steven G. Goebel
  • Publication number: 20030180674
    Abstract: A method and apparatus for vaporizing liquid fuel. The apparatus includes at least one capillary flow passage, the at least one capillary flow passage having an inlet end and an outlet end; a fluid control valve for placing the inlet end of the at least one capillary flow passage in fluid communication with the liquid fuel source and introducing the liquid fuel in a substantially liquid state; a heat source arranged along the at least one capillary flow passage, the heat source operable to heat the liquid fuel in the at least one capillary flow passage to a level sufficient to change at least a portion thereof from the liquid state to a vapor state and deliver a stream of substantially vaporized fuel from the outlet end of the at least one capillary flow passage; and means for cleaning deposits formed during operation of the apparatus. The flow passage can be a capillary tube heated by a resistance heater or a section of a tube heated by passing electrical energy therethrough.
    Type: Application
    Filed: May 10, 2002
    Publication date: September 25, 2003
    Inventor: Roberto O. Pellizzari
  • Publication number: 20030134239
    Abstract: The present invention provides a combustor for a fuel processor which integrates a burner and a catalyst. The burner is utilized to quickly heat the catalyst to a light-off temperature to prepare it for normal operation. The heated catalyst is then used to react anode exhaust with air or cathode exhaust under normal operation.
    Type: Application
    Filed: January 11, 2002
    Publication date: July 17, 2003
    Inventors: Matthew J. Beutel, William H. Pettit, Steven G. Goebel
  • Patent number: 6540505
    Abstract: A burner for liquid fuel has an electric heating device for start up heating a fuel vaporization chamber to a selected temperature, a flame retention baffle being fitted on the vaporization chamber with a temperature sensor sensing temperature of the vaporization. When the vaporization chamber is heated to a desired temperature of about 350 degrees celsius by deflected hot exhaust gas products from the burner operation and such temperature is sensed, the sensor outputs a signal so that the electric heating device can be shut down, vaporization chamber heating then being maintained by the deflected hot exhaust gas flow.
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: April 1, 2003
    Assignee: Toby AG
    Inventors: Josef Wuest, Heinz Steiner
  • Publication number: 20030027090
    Abstract: An evaporative burner includes an evaporative medium for feeding fuel vapor into a combustion chamber, a first heating device, having at least one ignition heating element projecting with at least its heating region into the combustion chamber for igniting fuel vapor present in the combustion chamber, and a second heating device, with at least one evaporating heating element associated with the evaporative medium for affecting its evaporation characteristic.
    Type: Application
    Filed: June 21, 2002
    Publication date: February 6, 2003
    Inventors: Walter Blaschke, Gunter Eberspach, Bruno Lindl
  • Publication number: 20030022118
    Abstract: There is provided a catalytic combustion apparatus that allows power consumption of a carburetor heater to be significantly reduced, and allows a fuel consumption amount to be reduced. A catalytic combustion apparatus including: a fuel tank 1 for feeding fuel and others, an air feeding fan 5 for feeding air and others, a carburetor 8 for evaporating the above described fuel, a gas mixture space 15 that holds the above described evaporated fuel and the above described air, a catalytic combustion unit 17 adjacent to the above described gas mixture space, and a catalyst heating element 10 provided in the gas mixture space 15, characterized in that the catalyst heating element 10 has a first heating compartment 11 and a second heating element compartment 12 provided from upstream to downstream of a flow of the above described gas mixture, and that the compartments carry catalysts on all or part thereof and are provided with a first gas mixture vent 13 and a second gas mixture vent 14.
    Type: Application
    Filed: July 26, 2002
    Publication date: January 30, 2003
    Inventors: Motohiro Suzuki, Tatsuo Fujita, Tetsuo Terashima
  • Publication number: 20030013059
    Abstract: A reactor is provided which produces a hollow cone flame jet. The reactor is formed from a plurality of concentric casings, the inner casing defining a combustion chamber having a converging-diverging nozzle. A primary air chamber is axially positioned within the combustion chamber and has a second end having a substantially divergent conical shape.
    Type: Application
    Filed: July 10, 2001
    Publication date: January 16, 2003
    Inventors: Cornel Dutescu, Eduard Dutescu, Gilbert Versteeg
  • Patent number: 6450162
    Abstract: An indirect radiant heating device burns gaseous or liquid fossil fuels for the heat treatment of running products, such as bars, tubes, and strips kept in a protective atmosphere. The device includes a radiant cassette of parallelepipedal shape, with a continuous radiating surface whose cross section, in a plane perpendicular to the axis of the cassette, is delimited by a continuous line which falls inside a rectangle whose height/width ratio is greater than 1.5.
    Type: Grant
    Filed: December 6, 2000
    Date of Patent: September 17, 2002
    Assignee: Stein Heurtey
    Inventors: Robert Wang, Jean-Claude Montgermont
  • Patent number: 6386862
    Abstract: A mixed gas supply portion 1 for mixing fuel with air, a mixed gas ejection portion 2 for ejecting the mixed gas mixed by the mixed gas supply portion 1, a breathable first catalyst body 5 provided downstream of the mixed gas supply portion 2, a breathable second catalyst body 7 provided downstream of the first catalyst body 5, a separation board a 6 for increasing gas flow resistance provided between the first catalyst body 5 and the second catalyst body 7, a heat exchange portion 13 having a heated fluid passage 14 positioned on the peripheral part, a radiant heat reception portion 3 provided upstream of the first catalyst body 5 and integrated with the heat exchange portion 13, and a separation board b 8 and a separation board c 10 provided downstream of the second catalyst body 7 for increasing flow resistance of the mixed gas and/or the combustion gas thereof are provided, and the separation board a 6, the separation board b 8, the separation board c 10 and the heat exchange portion 13 are integrated.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: May 14, 2002
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tatsuo Fujita, Yoshitaka Kawasaki, Akira Maenishi
  • Patent number: 6106278
    Abstract: The object of the invention is to provide a novel combustion chamber which has an improved air supply and also ensures an optimum incident flow to the burners when the mass flows of cooling and combustion air are different. According to the invention, this is achieved in that the at least one cooling duct (10) is extended right into the plenum (13) and is formed inside the plenum (13) as a diffuser (14) having an orifice (12) leading into the plenum (13). The at least one opening (15, 15') in the burner dome (4) is arranged in the region of the diffuser (14) or directly downstream of its orifice (12). A bypass duct (16, 16') having an orifice (17, 17') leading into the plenum (13) follows downstream of each opening (15, 15'). The orifice (17, 17') of each bypass duct (16, 16') is oriented at least approximately in parallel with the orifice (12) of the diffuser (14) and is also designed so as to be offset step-like to the outside.
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: August 22, 2000
    Assignee: ABB Research Ltd.
    Inventors: Leif Andersson, Peter Jansohn, Jonathan Lloyd
  • Patent number: 6050809
    Abstract: An immersion tube burner having stable ignition and flame over a wide range of firing rates. The burner includes a restriction orifice located between the fan and the burner nozzle for minimizing pulsations of air pressure fluctuations between the fan and nozzle. The orifice is sized so that the air velocity is greater through the orifice than at the nozzle so that any such pulsations are directed downstream of the nozzle rather than upstream, where they can affect the flame. The burner includes a burner nozzle having a cone shaped mixing plate. The angled shape of the plate re-circulates hot gases towards the base of the flame to thereby ensure more consistent ignition and combustion. The mixing plate further has holes arranged in primary and secondary zones. The holes of the primary zone are located within approximately five times the diameter of the fuel outlet ports so that the fuel exiting such ports has sufficient velocity to optimize mixing.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: April 18, 2000
    Assignee: Eclipse Combustion, Inc.
    Inventor: Matvey Fayerman
  • Patent number: 5984669
    Abstract: The invention relates to a tinted flame lighter having a tank (1000) suitable for containing a mixture (L) under pressure of a tinting agent and of a flammable volatile liquid. The lighter includes a porous filter (1020) suitable for expanding the mixture delivered to the outside of the tank for burning while it is at least partially in the liquid state, and means for feeding the porous filter with the mixture in the liquid state.
    Type: Grant
    Filed: November 5, 1996
    Date of Patent: November 16, 1999
    Assignee: Etienne Lacroix Tous Artifices S.A.
    Inventors: Jean-Pierre Rosada, Christine Lapene, Christian Authie
  • Patent number: 5957678
    Abstract: A combustion type detoxifying apparatus which carries out detoxifying treatment of a raw gas containing toxic components injected through a burner (3) into a combustion chamber (1) by allowing the toxic components to burn or undergo pyrolysis. The burner (3) has a raw gas nozzle (32a) for injecting the raw gas, a lift gas nozzle (32b) for injecting an inert gas, a raw gas combustion assisting gas nozzle (32c) for injecting a gas for assisting combustion of combustible components in the raw gas, a fuel gas combustion assisting gas nozzle (32d) for injecting a gas for assisting combustion of the fuel gas and a fuel gas nozzle (32e) for injecting the fuel gas.
    Type: Grant
    Filed: April 13, 1998
    Date of Patent: September 28, 1999
    Assignee: Nippon Sanso Corporation
    Inventors: Fumitaka Endoh, Maya Yamada, Shuichi Koseki, Toshio Suwa, Shinichi Miyake, Akihiko Nitta
  • Patent number: 5857323
    Abstract: A rocket engine burner for throttling over a large thrust range from full thrust to very low thrust. The rocket engine burner comprises a propellant injector assembly, a combustion chamber, and an ignitor. The propellant injector assembly comprises one or more hollow injectors and a secondary propellant manifold in communication with the hollow injectors to provide them with a secondary propellant. The propellant injector assembly also includes a primary propellant manifold and a porous injector that extends across the inlet of the combustion chamber and is in communication with the primary propellant manifold to receive the primary propellant. The primary propellant flows through the porous injector and is injected into the combustion chamber. The porous injector has one or more openings through it which receive the hollow injectors. The secondary propellant flows through the hollow injectors and is injected into the combustion chamber.
    Type: Grant
    Filed: August 22, 1995
    Date of Patent: January 12, 1999
    Assignee: Aerotherm Corporation, a Subsidiary of Dyncorp
    Inventors: John H. Beveridge, Alvin L. Murray
  • Patent number: 5832732
    Abstract: In an annular combustion chamber (1), which essentially comprises a plenum (7) for receiving a compressor air flow, burners (100) placed inside the plenum (7), a combustion space (122) arranged downstream of the plenum (7), and a cooling-air-carrying duct (2, 3) encasing the combustion space (122) and leading into the plenum (7), injector systems (8, 9) are arranged in the region where the coolingair-carrying duct (2, 3) leads into the plenum (7). These injector systems (8, 9) in each case consist of a flow duct as a continuation of the cooling-air-carrying duct (2, 3) and of a number of openings (5a) which are arranged in the peripheral direction of this flow duct and through which acceleration air (5) flows into the cooling-air flow. The effect of a bodiless diffuser is thereby achieved, and the pressure losses which occur given a widening in cross section are minimized.
    Type: Grant
    Filed: June 12, 1996
    Date of Patent: November 10, 1998
    Assignee: ABB Research Ltd.
    Inventors: Hans Peter Knopfel, Peter Senior
  • Patent number: 5743726
    Abstract: Fuel is fed by a feeding pump to a pressurized container. A predetermined amount of fuel is kept constant in the container by a floater which carries a needle for opening and closing a return as required. In the pressurized container the fuel is kept by a compressor under compressed air pressure which may be regulated by a pressure control valve, so that when the valve is opened fuel and air both under the same pressure are pressed into a nozzle unit in which air is highly pressed in the fuel so that when it leaves the nozzle channel it expands in an explosive manner and bursts the fuel into fine droplets. Secondary combustion air from an air generator is blown into the flame perpendicularly to the axis of the flame and fed to the fuel-air mixture.
    Type: Grant
    Filed: August 21, 1995
    Date of Patent: April 28, 1998
    Inventor: Winfried Werding
  • Patent number: 5709542
    Abstract: The invention relates to a process and a device for burning oxidizable components in a vehicle gas to be purified, comprising a gas inlet (36), a burner (19) with an attached flame pipe (22) opening into a main combustion chamber (24) comprising a bottom and side walls, an annular chamber leading from the side of the main combustion chamber bottom (21), a heat exchanger (32) around which flows the purified gas and through which flows the gas to be purified, and a gas outlet (38). To obtain good combustion with a compact construction, especially to make the best possible use of the geometric dwell time in the main combustion chamber, it is proposed that the main combustion chamber be constructed in such a way and/or has such guide components (40,42,44) that the gas flowing from the bottom towards the annular chamber is distributed completely or largely uniformly over the cross-section of the main combustion chamber.
    Type: Grant
    Filed: October 30, 1995
    Date of Patent: January 20, 1998
    Assignee: Grace GmbH
    Inventors: Gert Rentzel, Joachim Saggel
  • Patent number: 5520537
    Abstract: A burner assembly combines air and fuel to produce a burn firing into a downstream tube. The assembly includes a funnel formed to include an inlet, an outlet, and an air and fuel mixing region therebetween. The funnel also includes a cylindrical intake end at the inlet and a conical side wall mating with the cylindrical intake end and converging from the cylindrical intake end toward the outlet to fire a burn initiated in the mixing region into a tube coupled to the outlet of the funnel. The assembly also includes a system for supplying a gaseous fuel to the mixing region in the funnel and a system for introducing combustion air into the mixing region through the inlet of the funnel. The combustion air mixes with the gaseous fuel in the mixing region to produce a combustible mixture.
    Type: Grant
    Filed: August 29, 1994
    Date of Patent: May 28, 1996
    Assignee: Maxon Corporation
    Inventor: Curtis L. Taylor
  • Patent number: 5498153
    Abstract: A gas flare is described which includes a vent stack for combustion air having a first end and a second end. A gaseous fuel cyclone chamber surrounds the vent stack. The cyclone chamber has an interior wall conterminous with the vent stack and an exterior wall spaced from the vent stack. The cyclone chamber has a narrowing defining an access opening adjacent the first end of the vent stack. A gaseous fuel injection ring surrounds the first end of the vent stack with fuel nozzles extending into the access opening of the cyclone chamber. Gaseous fuel is fed into the cyclone chamber for thorough mixing prior to combustion. An igniter is positioned above the first end of the vent stack. Gaseous fuel flowing under pressure from the cyclone chamber creates a venturi effect drawing air up the vent stack to form a mixture of air and gaseous fuel which is ignited by the igniter. A combustion air passage communicates with the second end of the vent stack.
    Type: Grant
    Filed: July 25, 1994
    Date of Patent: March 12, 1996
    Inventor: Wendyle Jones
  • Patent number: 5472341
    Abstract: A burner capable of burning low pressure combustible gas with minimum pollutant emissions. The gas is preheated to hydrocarbon cracking temperatures in a heat exchanger located directly within an elongated water jacketed combustion chamber of the burner. The heated, expanding and rapidly flowing gas from the heat exchanger passes through a nozzle to further accelerate the gas for passage into an air intake system together with aspirated air. The nozzle and intake system are adjustable to meter in proper amounts of gas and air for a stoichiometric mixture. The gas/air mixture is laterally directed into the combustion chamber to induce turbulence and continued mixing for optimum ignition and burning. The resulting heated gases are useful in various end applications, such as in steam generating boilers. The burner is also adapted to inject steam into the preheated gas or into the intake system or into both to increase mass flow of air and to promote low pollutant emissions.
    Type: Grant
    Filed: June 1, 1994
    Date of Patent: December 5, 1995
    Inventor: Thomas Meeks
  • Patent number: 5468143
    Abstract: An infrared heater, especially for construction purposes or for animal brooders in which the air duct passes through the reflector on the side of a glow body turned away from the surface to be irradiated so that the air duct is heated by the glow body. Within the heated region of the air duct, a filter is provided which is heated to red heat, thereby pyralizing or burning off deposits and maintaining the filter free from obstruction for long periods.
    Type: Grant
    Filed: May 20, 1994
    Date of Patent: November 21, 1995
    Assignee: Colsman & Co. GmbH
    Inventors: Horst Weber, Alfred Normann
  • Patent number: 5399085
    Abstract: A burner assembly combines air and fuel to produce a burn firing into a downstream tube. The assembly includes a funnel formed to include an inlet, an outlet, and an air and fuel mixing region therebetween. The funnel also includes a cylindrical intake end at the inlet and a conical side wall mating with the cylindrical intake end and converging from the cylindrical intake end toward the outlet to fire a burn initiated in the mixing region into a tube coupled to the outlet of the funnel. The assembly also includes a system for supplying a gaseous fuel to the mixing region in the funnel and a system for introducing combustion air into the mixing region through the inlet of the funnel. The combustion air mixes with the gaseous fuel in the mixing region to produce a combustible mixture.
    Type: Grant
    Filed: June 3, 1994
    Date of Patent: March 21, 1995
    Assignee: Maxon Corporation
    Inventor: Curtis L. Taylor
  • Patent number: 5388986
    Abstract: A gas lighter having a tank made of a synthetic resin, a burner including a nozzle and a wick member wherein the nozzle has a lower side portion containing a porous member and a through hole therein, And a metal heat collecting member extending into the tank and having a projection inserted in the through bole of the porous member.
    Type: Grant
    Filed: March 10, 1993
    Date of Patent: February 14, 1995
    Assignee: Thai Merry Co., Ltd.
    Inventor: Decha Khemarangsan
  • Patent number: 5306138
    Abstract: The incinerator has a closed housing (10) with high temperature insulation (17). A linear gas burner (50) is wholly within the bottom portion of the incineration chamber (22), producing a line of small flames (59). Polluted air, passing downwardly through vertically suspended heat exchanger tubes (47) wholly within the combustion chamber, is preheated and then discharged downwardly against the flames 59 of the linear burner (50), producing products of combustion and air heated to about 1400.degree. F. The products of combustion and air pass upwardly and on opposite outer sides of the tubes (47) and exit the incinerator. The heated air and products of combustion heat the insulation sufficiently that it emits radiant energy inwardly for heating the tubes 47 by radiation, as the products of combustion and air heat the tubes 47 by convective heat transfer.
    Type: Grant
    Filed: March 10, 1992
    Date of Patent: April 26, 1994
    Inventor: Willie H. Best
  • Patent number: 5154597
    Abstract: A gasifier (17) is located at a distance (49) from an air aperture plate (35). At the outlet (42) of the gasifier there is a stationary mixing head (29) having a deflector section (31) and lateral outlets (33). Fuel is supplied coaxially through an opening (55) of the air aperture plate. A flame tube (21) surrounds the gasifier (17) and an electric heater (39) leaving an annular space (40). When the burner is started up, the electric heater (39) is switched on until the gasifier has the necessary operating temperature. Fuel is then supplied. The fuel/air mixture is ignited by an electrode (65). The flame tube (21) extends to the end of the mixing head (29), or only a little therebeyond. A flame is formed at the outlets (33) that touches the flame tube after a short travel, then emerges from it and expands. Because the flame can immediately expand, only little NO.sub.x is formed.
    Type: Grant
    Filed: August 24, 1990
    Date of Patent: October 13, 1992
    Assignee: VTH AG Verfahrenstechnik fur Heizung
    Inventors: Jorg Fullemann, Heinrich Boner
  • Patent number: 5124134
    Abstract: The invention relates to a process and to an apparatus for the conversion of hydrocarbons. According to the invention, at least one first gas containing at least 20% of oxygen by volume and a type of hydrocarbon are first all circulated in separate streams which are parallel to each other, without their being mixed, according to a spatial distribution such that the first gas is surrounded by the hydrocarbon; these substances are introduced into a mixing/reaction chamber at a first given circulation level, and while the substances are then allowed to mix, the oxygen and the hydrocarbon are ignited so as to give rise to the conversion reaction and then, at a second given circulation level situated downstream of the first, a quenching of the resultant mixture is performed in a chamber, the resultant quenched conversion products are recovered. The invention applies particularly to the manufacture of conversion products such as acetylene and ethylene.
    Type: Grant
    Filed: April 9, 1990
    Date of Patent: June 23, 1992
    Assignee: Gaz de France
    Inventor: Guy M. Come
  • Patent number: 5123401
    Abstract: A combustion heating device for use for example with oil processing equipment defines a combustion chamber within which combustion wholly takes place. The combustion chamber consists solely of a sleeve and end plate defining a vertical cylinder and a layer of ceramic fiber insulating material inside the sleeve defining the inner surface of the combustion chamber. A burner is mounted in a bottom plate of the device which can be pivoted to an open position exposing the burner for service. Air channels are defined on the outside of the sleeve so that incoming combustion air passes over the sleeve and acts as a heat recovery for any heat escaping from the insulating material. An outlet duct at an upper end of the combustion chamber at right angles to the combustion chamber extracts the combustion gases so that all heat exchange takes place outside of the combustion chamber. The device improves heating efficiency and reduces corrosion of heat transfer surfaces.
    Type: Grant
    Filed: September 21, 1990
    Date of Patent: June 23, 1992
    Assignee: ICG Propane Inc.
    Inventor: Jack Lange