US20040096794A1 - Radiant tube gas burner - Google Patents
Radiant tube gas burner Download PDFInfo
- Publication number
- US20040096794A1 US20040096794A1 US10/472,883 US47288303A US2004096794A1 US 20040096794 A1 US20040096794 A1 US 20040096794A1 US 47288303 A US47288303 A US 47288303A US 2004096794 A1 US2004096794 A1 US 2004096794A1
- Authority
- US
- United States
- Prior art keywords
- pipe
- inner pipe
- burner
- separate
- gas burner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 230000001681 protective effect Effects 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 description 11
- 239000002912 waste gas Substances 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000001273 butane Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/36—Details, e.g. burner cooling means, noise reduction means
- F23D11/40—Mixing tubes or chambers; Burner heads
- F23D11/404—Flame tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C3/00—Combustion apparatus characterised by the shape of the combustion chamber
- F23C3/002—Combustion apparatus characterised by the shape of the combustion chamber the chamber having an elongated tubular form, e.g. for a radiant tube
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/12—Radiant burners
- F23D14/126—Radiant burners cooperating with refractory wall surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/66—Preheating the combustion air or gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2212/00—Burner material specifications
- F23D2212/10—Burner material specifications ceramic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
- F23D2900/00018—Means for protecting parts of the burner, e.g. ceramic lining outside of the flame tube
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L2900/00—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
- F23L2900/15043—Preheating combustion air by heat recovery means located in the chimney, e.g. for home heating devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Definitions
- the present invention relates to a gas burner.
- the invention is primarily intended for industrial furnaces.
- Swedish Patent Specification No. 9800473-2 describes a method and a burner for cleaning waste gases emitted from a gas burner or from some other combustion source, such as oilfired burners.
- the fuel normally used is natural gas, although other gases may be used, such as propane, butane and liquefied petroleum gas or bottled gas.
- An example of an efficient gas burner is a burner of the type in which the burner head is placed at one end of an inner pipe and in which the inner pipe is surrounded by an outer protective pipe which is closed at its bottom.
- the combustion gases from the combustion chamber pass down inside the inner pipe to the bottom of the outer pipe, where they turn to flow back between the outer pipe and the inner pipe and into a waste gas channel which leads to the surroundings.
- the protective pipe delivers heat to a furnace space by convection, corresponding to 30%, and by radiation, corresponding to 70%.
- a similar type of burner also comprises an inner pipe and an outer protective pipe that surrounds the inner pipe, although the bottom of the protective pipe is not closed in this case.
- the protective pipe is curved, for instance in a U-shaped configuration, and the free end of the protective pipe is connected to a waste gas channel.
- the inner pipe equipped with the burner head is straight and is thus located within the straight section of the protective pipe.
- the outer pipe It is desirable to keep the outer pipe at a temperature of up to 1150-1200° C., so as to thereby enhance the power concentration of the burner.
- This can be achieved by producing the outer pipe from a high temperature material, such as silicon carbide (SiC) or APM.
- SiC silicon carbide
- APM is an acronym of Advanced Powder Metallurgy, and the material concerned contains about 73% Fe, 22% Cr and 5% Al. The powder material is extruded into a tubular form.
- the present invention thus relates to a furnace-heating gas burner of the kind in which the burner head 1 is situated at one end of an inner pipe which is surrounded by an outer protective pipe and wherein a first part of the inner pipe that surrounds the burner head is provided, and wherein a separate inner pipe is provided in the extension of the first pipe which separate inner pipe lies axially in line with the first pipe and commences at the open end thereof, and wherein the burner is characterised in that the outlet of the first pipe has an inner diameter which is smaller than the remainder of the pipe at the end of said first pipe that faces towards the separate pipe.
- FIG. 1 illustrates a burner constructed in accordance with the invention.
- FIG. 1 illustrates a known type of gas burner for heating furnaces.
- the gas burner is of the kind in which the burner head 1 is situated at one end of an inner pipe 2 , which is surrounded by an outer protective pipe 3 .
- the bottom 4 of the protective pipe 3 is closed.
- the waste gases from the burner head will pass down inside the inner pipe 2 to the bottom 4 of the outer pipe 3 and then turn to flow back between the outer pipe and the inner pipe, as shown by the arrows, and thereafter flow into an exhaust channel 5 that leads to the surroundings.
- FIG. 1 shows a first part 2 of the inner pipe that surrounds the burner head, and also shows a separate inner pipe 8 situated in the extension of the inner pipe 2 .
- This separate inner pipe 8 is axially in line with the first pipe and commences at the open end of the first pipe 2 .
- the first pipe 2 and the separate inner pipe 8 are thus axially in line with each other.
- the separate inner pipe 8 commences at the open end of the first pipe 2 .
- the invention is not restricted to any particular gas burner or to any other type of burner, but may equally as well have been described with reference to the above-mentioned type of burner, which also has an inner pipe that is surrounded by an outer protective pipe, but where the bottom of the protective pipe is not closed but where the protective pipe is curved and the free end of said pipe is connected to a waste gas channel.
- Gaseous fuel is fed into an inlet 6 and air of combustion is fed into an inlet 7 .
- the outlet of the first pipe has a smaller inner diameter than the remainder of the tube at that end which faces towards the separate pipe.
- the first pipe 2 narrows at its lower end.
- the tapering part 9 causes the speed of the gas to increase towards the mouth 10 .
- the longer flame means that the area of the inner surface of the separate pipe that is heated directly by the flame, i.e. the surface area contacted by the flame, will be much greater than in the case of conventional burners.
- the smaller inner diameter of the mouth 10 is 10% to 50% of the inner diameter of the remainder of the pipe.
- the mouth 10 of the first pipe 2 is located essentially at the proximal opening 12 of the separate pipe 8 .
- the tapering may have a conical shape or some other shape.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion Of Fluid Fuel (AREA)
- Gas Burners (AREA)
Abstract
A furnace-heating gas burner of the kind in which the burner head is situated at one end of a first inner pipe that is surrounded by an outer protective pipe. A first part of the inner pipe surrounds the burner head. A separate inner pipe is provided in the extension of the first inner pipe and is axially aligned with the first inner pipe. The separate inner pipe commences at the open end of the first inner pipe. At the end of the first inner pipe that faces the separate inner pipe, the outlet of the first inner pipe has an inner diameter that is smaller than the diameter of the pipe in general.
Description
- The present invention relates to a gas burner.
- The invention is primarily intended for industrial furnaces.
- Swedish Patent Specification No. 9800473-2 describes a method and a burner for cleaning waste gases emitted from a gas burner or from some other combustion source, such as oilfired burners.
- It is usual to heat industrial furnaces with the aid of gas burners. The fuel normally used is natural gas, although other gases may be used, such as propane, butane and liquefied petroleum gas or bottled gas.
- An example of an efficient gas burner is a burner of the type in which the burner head is placed at one end of an inner pipe and in which the inner pipe is surrounded by an outer protective pipe which is closed at its bottom. The combustion gases from the combustion chamber pass down inside the inner pipe to the bottom of the outer pipe, where they turn to flow back between the outer pipe and the inner pipe and into a waste gas channel which leads to the surroundings. The protective pipe delivers heat to a furnace space by convection, corresponding to 30%, and by radiation, corresponding to 70%.
- A similar type of burner also comprises an inner pipe and an outer protective pipe that surrounds the inner pipe, although the bottom of the protective pipe is not closed in this case. The protective pipe is curved, for instance in a U-shaped configuration, and the free end of the protective pipe is connected to a waste gas channel. The inner pipe equipped with the burner head is straight and is thus located within the straight section of the protective pipe.
- It is desirable to keep the outer pipe at a temperature of up to 1150-1200° C., so as to thereby enhance the power concentration of the burner. This can be achieved by producing the outer pipe from a high temperature material, such as silicon carbide (SiC) or APM. APM is an acronym of Advanced Powder Metallurgy, and the material concerned contains about 73% Fe, 22% Cr and 5% Al. The powder material is extruded into a tubular form.
- One problem is that when the flame leaves the burner head and comes into contact with the inner pipe, there is formed a region in which the temperature of the inner pipe tends to become too high on relation to the temperature at which the inner pipe is intended to operate.
- The present invention solves this problem.
- The present invention thus relates to a furnace-heating gas burner of the kind in which the
burner head 1 is situated at one end of an inner pipe which is surrounded by an outer protective pipe and wherein a first part of the inner pipe that surrounds the burner head is provided, and wherein a separate inner pipe is provided in the extension of the first pipe which separate inner pipe lies axially in line with the first pipe and commences at the open end thereof, and wherein the burner is characterised in that the outlet of the first pipe has an inner diameter which is smaller than the remainder of the pipe at the end of said first pipe that faces towards the separate pipe. - The invention will now be described in more detail partly with reference to an exemplifying embodiment thereof illustrated in the accompanying drawing, in which
- FIG. 1 illustrates a burner constructed in accordance with the invention.
- FIG. 1 illustrates a known type of gas burner for heating furnaces. The gas burner is of the kind in which the
burner head 1 is situated at one end of aninner pipe 2, which is surrounded by an outer protective pipe 3. Thebottom 4 of the protective pipe 3 is closed. Thus, the waste gases from the burner head will pass down inside theinner pipe 2 to thebottom 4 of the outer pipe 3 and then turn to flow back between the outer pipe and the inner pipe, as shown by the arrows, and thereafter flow into anexhaust channel 5 that leads to the surroundings. - FIG. 1 shows a
first part 2 of the inner pipe that surrounds the burner head, and also shows a separateinner pipe 8 situated in the extension of theinner pipe 2. This separateinner pipe 8 is axially in line with the first pipe and commences at the open end of thefirst pipe 2. Thefirst pipe 2 and the separateinner pipe 8 are thus axially in line with each other. The separateinner pipe 8 commences at the open end of thefirst pipe 2. - The invention is not restricted to any particular gas burner or to any other type of burner, but may equally as well have been described with reference to the above-mentioned type of burner, which also has an inner pipe that is surrounded by an outer protective pipe, but where the bottom of the protective pipe is not closed but where the protective pipe is curved and the free end of said pipe is connected to a waste gas channel.
- Gaseous fuel is fed into an inlet6 and air of combustion is fed into an
inlet 7. - According to the invention, the outlet of the first pipe has a smaller inner diameter than the remainder of the tube at that end which faces towards the separate pipe.
- In the FIG. 1 embodiment, the
first pipe 2 narrows at its lower end. The taperingpart 9 causes the speed of the gas to increase towards themouth 10. In turn, this means that theflame 11 issuing from the mouth will be longer than it would otherwise be when using a typical fully cylindrical first pipe. In turn, the longer flame means that the area of the inner surface of the separate pipe that is heated directly by the flame, i.e. the surface area contacted by the flame, will be much greater than in the case of conventional burners. - It has surprisingly been found that this enlargement of the flame eliminates the aforementioned problem, despite the fact that the flame develops as much heat as in the case of a conventional burner and despite the fact that the
inner pipe 8 is heated from both sides. - According to a preferred embodiment of the invention, the smaller inner diameter of the
mouth 10 is 10% to 50% of the inner diameter of the remainder of the pipe. - According to another preferred embodiment, the
mouth 10 of thefirst pipe 2 is located essentially at theproximal opening 12 of theseparate pipe 8. - Although certain embodiments have been described above, it will be understood that the tapering may have a conical shape or some other shape.
- It will therefore be understood that the present invention shall not be considered to be restricted to the aforedescribed exemplifying embodiments but that variations can be made within the scope of the accompanying claims.
Claims (3)
1. A furnace-heating gas burner of the kind in which the burner head (1) is situated at one end of an inner pipe (2) which is surrounded by an outer protective pipe (3), and wherein a first part of the inner tube (2) that surrounds the burner head is provided, and wherein a separate inner pipe (8) is provided in the extension of the first pipe (2), which separate inner pipe (8) lies axially in line with the first pipe and commences at the open end of said first pipe (2), characterised in that at the end of the first pipe (2) which faces towards the separate pipe (8) the outlet of said first pipe has an inner diameter which is smaller than the diameter of the pipe in general.
2. A burner according to claim 1 , characterised in that said smaller inner diameter is 10% to 50% of the inner diameter of the first pipe (2) in general..
3. A burner according to claim 1 or 2, characterised in that the mouth (10) of the first pipe (2) is situated essentially at the nearby opening (12) of the separate pipe (8).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0100948A SE0100948L (en) | 2001-03-19 | 2001-03-19 | Burner for gas |
SE01009489 | 2001-03-19 | ||
PCT/SE2002/000463 WO2002075209A1 (en) | 2001-03-19 | 2002-03-13 | Radiant tube gas burner |
Publications (1)
Publication Number | Publication Date |
---|---|
US20040096794A1 true US20040096794A1 (en) | 2004-05-20 |
Family
ID=20283422
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/472,883 Abandoned US20040096794A1 (en) | 2001-03-19 | 2002-03-13 | Radiant tube gas burner |
Country Status (7)
Country | Link |
---|---|
US (1) | US20040096794A1 (en) |
EP (1) | EP1370800A1 (en) |
JP (1) | JP2004526118A (en) |
CN (1) | CN1498325A (en) |
SE (1) | SE0100948L (en) |
TW (1) | TW593927B (en) |
WO (1) | WO2002075209A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070111150A1 (en) * | 2005-11-14 | 2007-05-17 | Ngk Insulators, Ltd. | PM generating apparatus |
US20080085485A1 (en) * | 2004-10-22 | 2008-04-10 | Sandvik Intellectual Property Ab | Method Of Combustion With The Aid Of Burners In Industrial Furnaces,And A Burner To This End |
ITGE20090043A1 (en) * | 2009-06-26 | 2010-12-27 | Ergo Design S R L | BURNER |
EP2713105A1 (en) * | 2012-09-27 | 2014-04-02 | Systema Polska Sp. zo. o | Gas combustion head for premixed burners and burner provided with the aforesaid combustion head |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BRPI0906723A2 (en) * | 2008-02-01 | 2019-10-01 | Ihi Corp | combustion heater |
JP6019165B2 (en) * | 2015-04-27 | 2016-11-02 | 東京瓦斯株式会社 | Heat exchanger with combustor for fluid heating |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2857961A (en) * | 1954-07-13 | 1958-10-28 | Brown Fintube Co | Oil burners |
US4306858A (en) * | 1979-05-23 | 1981-12-22 | Loi Industrieofenanlagen Gmbh | Recuperative heating unit for industrial furnace |
US4375949A (en) * | 1978-10-03 | 1983-03-08 | Exxon Research And Engineering Co. | Method of at least partially burning a hydrocarbon and/or carbonaceous fuel |
US4493309A (en) * | 1982-09-29 | 1985-01-15 | British Gas Corporation | Fuel fired heating element |
US4850334A (en) * | 1987-06-11 | 1989-07-25 | Gas De France | Inner ceramic tube in particular for a glove finger-shaped radiant tube for recirculation |
US5762489A (en) * | 1995-02-17 | 1998-06-09 | Ws Warmeprozesstechnik Gmbh | Radiant heat exchange tube with furnace wall for industrial furnaces |
US6425754B1 (en) * | 1997-10-20 | 2002-07-30 | Kanthal Ab | Method of purifying waste gases, and a gas burner |
US6776610B2 (en) * | 2001-03-19 | 2004-08-17 | Sandvik Ab | Burner arranged with a mixing chamber for fuel and combustion air |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11201416A (en) * | 1998-01-06 | 1999-07-30 | Chugai Ro Co Ltd | Exhaust gas circulation type low nox radiant tube burner |
-
2001
- 2001-03-19 SE SE0100948A patent/SE0100948L/en not_active Application Discontinuation
-
2002
- 2002-03-13 EP EP02704026A patent/EP1370800A1/en not_active Withdrawn
- 2002-03-13 WO PCT/SE2002/000463 patent/WO2002075209A1/en not_active Application Discontinuation
- 2002-03-13 JP JP2002573580A patent/JP2004526118A/en not_active Abandoned
- 2002-03-13 US US10/472,883 patent/US20040096794A1/en not_active Abandoned
- 2002-03-13 CN CNA028068041A patent/CN1498325A/en active Pending
- 2002-03-14 TW TW091104812A patent/TW593927B/en not_active IP Right Cessation
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2857961A (en) * | 1954-07-13 | 1958-10-28 | Brown Fintube Co | Oil burners |
US4375949A (en) * | 1978-10-03 | 1983-03-08 | Exxon Research And Engineering Co. | Method of at least partially burning a hydrocarbon and/or carbonaceous fuel |
US4306858A (en) * | 1979-05-23 | 1981-12-22 | Loi Industrieofenanlagen Gmbh | Recuperative heating unit for industrial furnace |
US4493309A (en) * | 1982-09-29 | 1985-01-15 | British Gas Corporation | Fuel fired heating element |
US4850334A (en) * | 1987-06-11 | 1989-07-25 | Gas De France | Inner ceramic tube in particular for a glove finger-shaped radiant tube for recirculation |
US5762489A (en) * | 1995-02-17 | 1998-06-09 | Ws Warmeprozesstechnik Gmbh | Radiant heat exchange tube with furnace wall for industrial furnaces |
US6425754B1 (en) * | 1997-10-20 | 2002-07-30 | Kanthal Ab | Method of purifying waste gases, and a gas burner |
US6776610B2 (en) * | 2001-03-19 | 2004-08-17 | Sandvik Ab | Burner arranged with a mixing chamber for fuel and combustion air |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080085485A1 (en) * | 2004-10-22 | 2008-04-10 | Sandvik Intellectual Property Ab | Method Of Combustion With The Aid Of Burners In Industrial Furnaces,And A Burner To This End |
US7993130B2 (en) * | 2004-10-22 | 2011-08-09 | Sandvik Intellectual Property Ab | Method of combustion with the aid of burners in industrial furnaces, and a burner to this end |
US20070111150A1 (en) * | 2005-11-14 | 2007-05-17 | Ngk Insulators, Ltd. | PM generating apparatus |
US7802421B2 (en) * | 2005-11-14 | 2010-09-28 | Ngk Insulators, Ltd. | PM generating apparatus |
ITGE20090043A1 (en) * | 2009-06-26 | 2010-12-27 | Ergo Design S R L | BURNER |
WO2010150228A3 (en) * | 2009-06-26 | 2011-03-17 | Ergo Design S.R.L. | Burner |
EP2713105A1 (en) * | 2012-09-27 | 2014-04-02 | Systema Polska Sp. zo. o | Gas combustion head for premixed burners and burner provided with the aforesaid combustion head |
Also Published As
Publication number | Publication date |
---|---|
SE0100948D0 (en) | 2001-03-19 |
WO2002075209A1 (en) | 2002-09-26 |
TW593927B (en) | 2004-06-21 |
JP2004526118A (en) | 2004-08-26 |
EP1370800A1 (en) | 2003-12-17 |
SE0100948L (en) | 2002-09-20 |
CN1498325A (en) | 2004-05-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SANDVIK AB, SWEDEN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LOVGREN, HANS;LEWIN, THOMAS;REEL/FRAME:014680/0286 Effective date: 20030812 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |