US3008513A - Safety construction for luminous wall furnace - Google Patents

Safety construction for luminous wall furnace Download PDF

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Publication number
US3008513A
US3008513A US831096A US83109659A US3008513A US 3008513 A US3008513 A US 3008513A US 831096 A US831096 A US 831096A US 83109659 A US83109659 A US 83109659A US 3008513 A US3008513 A US 3008513A
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United States
Prior art keywords
furnace
firing
wall
luminous
gas
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Expired - Lifetime
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US831096A
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English (en)
Inventor
Artemas F Holden
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Individual
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Priority to US831096A priority Critical patent/US3008513A/en
Priority to LU39033D priority patent/LU39033A1/xx
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Publication of US3008513A publication Critical patent/US3008513A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0033—Heating elements or systems using burners
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0006—Details, accessories not peculiar to any of the following furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/0003—Linings or walls
    • F27D1/0023—Linings or walls comprising expansion joints or means to restrain expansion due to thermic flows
    • F27D1/0026—Linings or walls comprising expansion joints or means to restrain expansion due to thermic flows the expansion joint being a resilient element, e.g. a metallic plate between two bricks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/0003—Linings or walls
    • F27D1/003—Linings or walls comprising porous bricks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/16—Making or repairing linings ; Increasing the durability of linings; Breaking away linings
    • F27D1/1678—Increasing the durability of linings; Means for protecting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0033—Heating elements or systems using burners
    • F27D2099/0038—Heating elements or systems using burners removable

Definitions

  • This invention relates to improvements in a luminous wall furnace construction of the type disclosed in my prior Patent No. 2,828,813 and more particularly to means for improving the safety and durability of furnace installations of such type.
  • the luminous wall furnaces under consideration employ a light porous firebrick, which may be in the order of 21/2 to 9 inches thick with drilled passages extending from a plenum chamber at the outer surface to within approximately l to lVz inches of the inner firing face, and through which a combu'stible vgas-air mixture permeates to the firing face where it is ignited and burned causing the firing face to become luminous and highly radiant for efficient and rapid heating of work loads within the furnace.
  • the gas-air mixture flowing through the porous rebrick cools the brick in the areas communicating with the plenum chamber substantially below the combustion temperature, while the firing face may obtain temperatures in the order of 1000 to 2400 degrees-Fahrenheit.
  • the high temperature of the firing face rela- .tive -to the remainder of the tire/brick, plenum chamber and retaining framework results in a tendency for the firing face portion of the furnace wall to expand without corresponding expansion of the remaining furnace structure, which, in the absence of provisions disclosed herein, may result in substantial compression and restriction of the porosity of the iirebrick immediately adjacent the firing surface thereby reducing the capacity of the furnace for a given pressure of the fuel supply and leading to progressive cracking and deterioration of the mortar between the bricks as well as the rebricks themselves. After many cycles of heating and cooling, such cracking and deterioration may eventually result in the opening of direct leak paths between the plenum chamber and firing surface with consequent danger of flash back into the plenum chamber causing a furnace explosion.
  • the present invention is directed to substantially obviate these difliculties by providing expansible impervious heat resistant joints or gaskets at suitable intervals along the length of the firewall within the mortar between the bricks, between the bricks and retaining metal structural members, and/ or between adjacent metal structural members.
  • a preferred material found eminently suitable for this purpose is a sandwich consisting of thin aluminum foil, in the order of 3/1000 to 5%[000 of an inch thick, surrounding a compressible asbestos ller or equivalent material such as ⁇ silica alumina fibre in the order of 1/32 -to 1/8 of an inch thick, which may be joined to the aluminum foil with a cement or preferably with sodium silicate.
  • Such la resilient joint may extend through the entire firebrick furnace wall and should extend from the firing surface back substantially in excess of 2 inches. ring the furnace at high temperatures, the aluminum foil immediately adjacent the firing surface, and backward therefrom for a distance of as much as 2 inches, is converted to aluminum oxide while the balance of the ICC aluminum foil remains intact as originally installed. For operating temperatures in the ⁇ order of 2400 degrees, such gasket material is preferably incorporated at 2 foot intervals.
  • a separate Upon air passage is provided around the perimeter o-f the plenum chamber from which air without gas is continuously fed through firewall brick bordering the perimeter of the firing area of the ring face.
  • a layer of gasket material i'sy preferably incorporated between the firing and air cooled brick.
  • FIGURE 1 is a plan view of a typical luminous furnace floor structure
  • FIGURE 2 is an enlarged fragmentary sectional side elevation taken along the line 2-2 of FIGURE l;
  • FIGURE 3 is an enlarged fragmentary sectional end elevation taken along the line 3-3 of FIGURE 1;
  • FIGURE 4 is an enlarged sectional view of a typical sandwich gasket material employed as sealing and expansion joint.
  • the floor structure consists of a series of panels mounted on transverse channel legs 10 welded to vertical side plates 11 and separated by sealing gasket material 12.
  • Solid transverse horizontal plates 13 welded tothe channel leg members 10 form the bottom of plenum chambers 14 while perforated upper plates 15 welded to the side plates 11 support the firebrick 16 of the furnace.
  • Cooling air passages 19 are provided around the perimeter of each of the plenum chambers 14 feeding cooling air through the passages of the porous rebrick to the outer surface 20 around the perimeter of the firing face 18.
  • the inner face 18 of each panel thus consists of a iired area sur-rounded by a nonred area.
  • Gasket material 21 similar to the gasket material 12 and illustrated in FIGURE 4 is employed between the adjacent fired and air cooled brick, to form an effective seal and expansion joint, and at intervals between the fired brick also.
  • Such gasket material preferably comprises a sandwich of aluminum foil 22 bonded to an asbestos core 23 with sodium silicate.
  • the core may be in the order of 1/,2 to l/g of an inch in thickness while the aluminum foil may be in the order of ooo to 5/1000 of ⁇ au inch thick.
  • a luminous Wall yfurnace comprising a furnace framework, a porous iirebrick furnace wall extending within said framework, a limited first portion of said wall spaced from said framework having an interior firing face, a combustible gaseair mixture plenum chamber communicating with the exterior portion of said wall corresponding to said firing face, means for supplying a combustible gas-air mixture thereto, gas impervious barrier means in said -wall extending along the margin of said first portion confining the flow of gas-air mixture from said plenum chamber thro-ugh said porous iirebrick wall to said firing face, a second portion of said porous firebrick furnace wall extending around the perimeter of said firing face between said barrier means and said frame- 3 work, an rair chamber" adjacent'said'plenum chmberfor supplying cooling air through said second portion to its interior face vextendingalong the margin of said firing face.
  • gasket material comprises a sandwich of aluminum foil on either side of an asbestos core and including means for bonding said aluminum foil to said asbestos core.
  • a furnace as set forth in claim 4 wherein said lmeans for bonding comprises sodium silicate.
  • a furnace as set forth in claim 2 including spaced metal structural elements supporting and dividing said rebrick wall into panels, said gasket means being also included as a sealing element between said spaced metal structural elements.
  • a heating panel for a luminous wall furnace of the type wherein a combustible gas-air mixture is fed through porous rebrick to ignite and burn on the inner surface thereof said panel comprising metal frame members defining themargins' thereof,n a plenum rvchamber-*including la perforated metal member extending between said frame members forming the inner wall of said plenum chamber, porous firebrick mounted on Said plenum chamber inner wall between said frame members, gas impervious barrier means deiiningan'd separating a luminous tiring area.V on the inner surface' of said irebrick communicating with said plenum chamber from a nonring second portion of air-cooled porous 'firebrick surrounding the perimeter of said firing face, means for supplying a combusti-ble gas-air mixture to said plenum Y chamber, and an air chamber adjacent saidl plenum charnber for supplying cooling air to said non-firing perimeter.
  • a heating panel according to claim 8 whereinsaid gas impervious barrier means comprises resilient gasket means between said porous firebriok of the firing area and non-firing perimeter.
  • a heating panel according to claim 9 further characterized by gasket means interposed between adjacent rebrick across said tiring area,

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
US831096A 1959-08-03 1959-08-03 Safety construction for luminous wall furnace Expired - Lifetime US3008513A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US831096A US3008513A (en) 1959-08-03 1959-08-03 Safety construction for luminous wall furnace
LU39033D LU39033A1 (enrdf_load_stackoverflow) 1959-08-03 1960-08-02

Applications Claiming Priority (1)

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US831096A US3008513A (en) 1959-08-03 1959-08-03 Safety construction for luminous wall furnace

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US3008513A true US3008513A (en) 1961-11-14

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Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3166305A (en) * 1961-06-23 1965-01-19 Sunbeam Corp Gas fired vacuum furnace
US3228614A (en) * 1962-06-15 1966-01-11 Hupp Corp Gas fired infra-red heaters
US3291187A (en) * 1964-03-02 1966-12-13 Universal Oil Prod Co Catalytic methane burner for producing infra-red heat
US3439996A (en) * 1965-06-09 1969-04-22 Solaronics Inc Tile assembly for radiant gas burners
DE1301416B (de) * 1963-06-11 1969-08-21 Johnson Arthur C W Als Infrarotstrahler ausgebildeter Brenner
DE2714835A1 (de) * 1976-04-07 1977-10-20 Thomas M Smith Gasbefeuerte strahlungsheizvorrichtungen
US4189297A (en) * 1977-10-26 1980-02-19 Slyman Manufacturing Corporation Matrix mounting means for gas burners
WO1980002588A1 (en) * 1979-05-11 1980-11-27 Slyman Mfg Corp Non-warping radiant burner construction
US4272237A (en) * 1976-07-01 1981-06-09 Smith Thomas M Radiant heating
US4272238A (en) * 1979-03-13 1981-06-09 Smith Thomas M Infra-red heating and burners
US4290746A (en) * 1978-10-18 1981-09-22 Smith Thomas M Radiant heating
US4326843A (en) * 1978-05-15 1982-04-27 Smith Thomas M Gas-fired infra-red generators and use thereof
US4373904A (en) * 1979-03-13 1983-02-15 Smith Thomas M Infra-red generator
US4378207A (en) * 1979-11-16 1983-03-29 Smith Thomas M Infra-red treatment
US4435154A (en) 1982-07-19 1984-03-06 Vigneau David L Heat transfer device
US4435155A (en) 1983-04-13 1984-03-06 Vigneau David L Infra-red radiant burner
US4547148A (en) * 1984-10-29 1985-10-15 Refractory Products Co. Gas-fired radiant burner
US4634373A (en) * 1985-09-24 1987-01-06 David Rattner Gas-fired radiant heater
US4815891A (en) * 1984-10-26 1989-03-28 Thermal Power Corporation Method for repairing an opening formed in and below a section of pavement
US20080236564A1 (en) * 2007-03-28 2008-10-02 Constantin Burtea Wire mesh burner plate for a gas oven burner
US20080241776A1 (en) * 2007-03-28 2008-10-02 Constantin Burtea Infrared emitting gas burner
US20080264406A1 (en) * 2007-04-24 2008-10-30 Constantin Burtea Conveyor oven with hybrid heating sources
US20080283041A1 (en) * 2007-05-16 2008-11-20 Constantin Burtea Method of controlling an oven with hybrid heating sources
US8637792B2 (en) 2011-05-18 2014-01-28 Prince Castle, LLC Conveyor oven with adjustable air vents
US9791171B2 (en) 2014-07-28 2017-10-17 Clearsign Combustion Corporation Fluid heater with a variable-output burner including a perforated flame holder and method of operation
US9797595B2 (en) 2013-02-14 2017-10-24 Clearsign Combustion Corporation Fuel combustion system with a perforated reaction holder
US9885496B2 (en) 2014-07-28 2018-02-06 Clearsign Combustion Corporation Fluid heater with perforated flame holder
US10125979B2 (en) 2013-05-10 2018-11-13 Clearsign Combustion Corporation Combustion system and method for electrically assisted start-up
US10190767B2 (en) 2013-03-27 2019-01-29 Clearsign Combustion Corporation Electrically controlled combustion fluid flow
US10359213B2 (en) 2013-02-14 2019-07-23 Clearsign Combustion Corporation Method for low NOx fire tube boiler
US10386062B2 (en) 2013-02-14 2019-08-20 Clearsign Combustion Corporation Method for operating a combustion system including a perforated flame holder
US10539326B2 (en) 2016-09-07 2020-01-21 Clearsign Combustion Corporation Duplex burner with velocity-compensated mesh and thickness
US10571124B2 (en) 2013-02-14 2020-02-25 Clearsign Combustion Corporation Selectable dilution low NOx burner
US10578301B2 (en) 2015-02-17 2020-03-03 Clearsign Technologies Corporation Perforated flame holder with adjustable fuel nozzle
US10808927B2 (en) 2013-10-07 2020-10-20 Clearsign Technologies Corporation Pre-mixed fuel burner with perforated flame holder
US10823401B2 (en) 2013-02-14 2020-11-03 Clearsign Technologies Corporation Burner system including a non-planar perforated flame holder
US11060720B2 (en) 2016-11-04 2021-07-13 Clearsign Technologies Corporation Plasma pilot
US11313553B2 (en) 2016-01-13 2022-04-26 Clearsign Technologies Corporation Plug and play burner
US11460188B2 (en) 2013-02-14 2022-10-04 Clearsign Technologies Corporation Ultra low emissions firetube boiler burner
US11906160B2 (en) 2017-05-08 2024-02-20 Clearsign Technologies Corporation Combustion system including a mixing tube and a flame holder
US11953201B2 (en) 2013-02-14 2024-04-09 Clearsign Technologies Corporation Control system and method for a burner with a distal flame holder

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1074110A (en) * 1912-10-18 1913-09-30 Peter Fyfe Gas-burning apparatus.
FR477958A (fr) * 1914-07-09 1915-11-18 Alfred Adam Procédé et dispositifs pour la combustion, en surface sans flamme, de gaz combustibles
US1225381A (en) * 1915-03-01 1917-05-08 Utley Wedge Gas-burner.
US1304755A (en) * 1919-05-27 Domestic gas heating apparatus
US1532260A (en) * 1921-08-26 1925-04-07 Osthoff Walter Cloth-singeing device
US1883983A (en) * 1930-07-17 1932-10-25 Lanyon Samuel Herbert Expansion joint for furnaces
US1927859A (en) * 1932-01-26 1933-09-26 Vellumoid Company Gasket
US1940350A (en) * 1932-03-12 1933-12-19 Edward H Hautz Aerating apparatus
US2311350A (en) * 1939-12-26 1943-02-16 Richardson Edward Adams Method and apparatus for controlling combustion
US2828813A (en) * 1955-01-25 1958-04-01 Artemas F Holden Gas-fueled heating apparatus

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1304755A (en) * 1919-05-27 Domestic gas heating apparatus
US1074110A (en) * 1912-10-18 1913-09-30 Peter Fyfe Gas-burning apparatus.
FR477958A (fr) * 1914-07-09 1915-11-18 Alfred Adam Procédé et dispositifs pour la combustion, en surface sans flamme, de gaz combustibles
US1225381A (en) * 1915-03-01 1917-05-08 Utley Wedge Gas-burner.
US1532260A (en) * 1921-08-26 1925-04-07 Osthoff Walter Cloth-singeing device
US1883983A (en) * 1930-07-17 1932-10-25 Lanyon Samuel Herbert Expansion joint for furnaces
US1927859A (en) * 1932-01-26 1933-09-26 Vellumoid Company Gasket
US1940350A (en) * 1932-03-12 1933-12-19 Edward H Hautz Aerating apparatus
US2311350A (en) * 1939-12-26 1943-02-16 Richardson Edward Adams Method and apparatus for controlling combustion
US2828813A (en) * 1955-01-25 1958-04-01 Artemas F Holden Gas-fueled heating apparatus

Cited By (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3166305A (en) * 1961-06-23 1965-01-19 Sunbeam Corp Gas fired vacuum furnace
US3228614A (en) * 1962-06-15 1966-01-11 Hupp Corp Gas fired infra-red heaters
DE1301416B (de) * 1963-06-11 1969-08-21 Johnson Arthur C W Als Infrarotstrahler ausgebildeter Brenner
US3291187A (en) * 1964-03-02 1966-12-13 Universal Oil Prod Co Catalytic methane burner for producing infra-red heat
US3439996A (en) * 1965-06-09 1969-04-22 Solaronics Inc Tile assembly for radiant gas burners
DE2714835A1 (de) * 1976-04-07 1977-10-20 Thomas M Smith Gasbefeuerte strahlungsheizvorrichtungen
US4272237A (en) * 1976-07-01 1981-06-09 Smith Thomas M Radiant heating
US4189297A (en) * 1977-10-26 1980-02-19 Slyman Manufacturing Corporation Matrix mounting means for gas burners
US4326843A (en) * 1978-05-15 1982-04-27 Smith Thomas M Gas-fired infra-red generators and use thereof
US4290746A (en) * 1978-10-18 1981-09-22 Smith Thomas M Radiant heating
US4272238A (en) * 1979-03-13 1981-06-09 Smith Thomas M Infra-red heating and burners
US4373904A (en) * 1979-03-13 1983-02-15 Smith Thomas M Infra-red generator
US4255123A (en) * 1979-05-11 1981-03-10 Slyman Manufacturing Corporation Non-warping radiant burner construction
WO1980002588A1 (en) * 1979-05-11 1980-11-27 Slyman Mfg Corp Non-warping radiant burner construction
US4378207A (en) * 1979-11-16 1983-03-29 Smith Thomas M Infra-red treatment
US4435154A (en) 1982-07-19 1984-03-06 Vigneau David L Heat transfer device
US4435155A (en) 1983-04-13 1984-03-06 Vigneau David L Infra-red radiant burner
US4815891A (en) * 1984-10-26 1989-03-28 Thermal Power Corporation Method for repairing an opening formed in and below a section of pavement
US4547148A (en) * 1984-10-29 1985-10-15 Refractory Products Co. Gas-fired radiant burner
US4634373A (en) * 1985-09-24 1987-01-06 David Rattner Gas-fired radiant heater
US7717704B2 (en) * 2007-03-28 2010-05-18 Prince Castle, Inc. Wire mesh burner plate for a gas oven burner
US20080236564A1 (en) * 2007-03-28 2008-10-02 Constantin Burtea Wire mesh burner plate for a gas oven burner
US20080241776A1 (en) * 2007-03-28 2008-10-02 Constantin Burtea Infrared emitting gas burner
US7800023B2 (en) 2007-04-24 2010-09-21 Prince Castle LLC Conveyor oven with hybrid heating sources
US20080264406A1 (en) * 2007-04-24 2008-10-30 Constantin Burtea Conveyor oven with hybrid heating sources
US20080283041A1 (en) * 2007-05-16 2008-11-20 Constantin Burtea Method of controlling an oven with hybrid heating sources
US7851727B2 (en) 2007-05-16 2010-12-14 Prince Castle LLC Method of controlling an oven with hybrid heating sources
US8637792B2 (en) 2011-05-18 2014-01-28 Prince Castle, LLC Conveyor oven with adjustable air vents
US10823401B2 (en) 2013-02-14 2020-11-03 Clearsign Technologies Corporation Burner system including a non-planar perforated flame holder
US11156356B2 (en) 2013-02-14 2021-10-26 Clearsign Technologies Corporation Fuel combustion system with a perforated reaction holder
US11953201B2 (en) 2013-02-14 2024-04-09 Clearsign Technologies Corporation Control system and method for a burner with a distal flame holder
US11460188B2 (en) 2013-02-14 2022-10-04 Clearsign Technologies Corporation Ultra low emissions firetube boiler burner
US9797595B2 (en) 2013-02-14 2017-10-24 Clearsign Combustion Corporation Fuel combustion system with a perforated reaction holder
US10571124B2 (en) 2013-02-14 2020-02-25 Clearsign Combustion Corporation Selectable dilution low NOx burner
US10337729B2 (en) 2013-02-14 2019-07-02 Clearsign Combustion Corporation Fuel combustion system with a perforated reaction holder
US10359213B2 (en) 2013-02-14 2019-07-23 Clearsign Combustion Corporation Method for low NOx fire tube boiler
US10386062B2 (en) 2013-02-14 2019-08-20 Clearsign Combustion Corporation Method for operating a combustion system including a perforated flame holder
US10190767B2 (en) 2013-03-27 2019-01-29 Clearsign Combustion Corporation Electrically controlled combustion fluid flow
US10808925B2 (en) 2013-03-27 2020-10-20 Clearsign Technologies Corporation Method for electrically controlled combustion fluid flow
US10125979B2 (en) 2013-05-10 2018-11-13 Clearsign Combustion Corporation Combustion system and method for electrically assisted start-up
US10808927B2 (en) 2013-10-07 2020-10-20 Clearsign Technologies Corporation Pre-mixed fuel burner with perforated flame holder
US9791171B2 (en) 2014-07-28 2017-10-17 Clearsign Combustion Corporation Fluid heater with a variable-output burner including a perforated flame holder and method of operation
US9885496B2 (en) 2014-07-28 2018-02-06 Clearsign Combustion Corporation Fluid heater with perforated flame holder
US10139131B2 (en) 2014-07-28 2018-11-27 Clearsign Combustion Corporation Fluid heater with perforated flame holder, and method of operation
US10578301B2 (en) 2015-02-17 2020-03-03 Clearsign Technologies Corporation Perforated flame holder with adjustable fuel nozzle
US11248786B2 (en) 2015-02-17 2022-02-15 Clearsign Technologies Corporation Method for a perforated flame holder with adjustable fuel nozzle
US11313553B2 (en) 2016-01-13 2022-04-26 Clearsign Technologies Corporation Plug and play burner
US11953199B2 (en) 2016-01-13 2024-04-09 ClearSign Technologies Coporation Burner and burner system with flange mount
US10539326B2 (en) 2016-09-07 2020-01-21 Clearsign Combustion Corporation Duplex burner with velocity-compensated mesh and thickness
US11060720B2 (en) 2016-11-04 2021-07-13 Clearsign Technologies Corporation Plasma pilot
US11906160B2 (en) 2017-05-08 2024-02-20 Clearsign Technologies Corporation Combustion system including a mixing tube and a flame holder

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Publication number Publication date
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