US20060040224A1 - Cover member for a gas combustion heads, and gas burner comprising such a cover member - Google Patents

Cover member for a gas combustion heads, and gas burner comprising such a cover member Download PDF

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Publication number
US20060040224A1
US20060040224A1 US11/013,479 US1347904A US2006040224A1 US 20060040224 A1 US20060040224 A1 US 20060040224A1 US 1347904 A US1347904 A US 1347904A US 2006040224 A1 US2006040224 A1 US 2006040224A1
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United States
Prior art keywords
cover member
tubular base
base structure
gas
combustion head
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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
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US11/013,479
Inventor
Andrea Lovato
Giuseppe Toniato
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Riello SpA
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Riello SpA
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Assigned to RIELLO S.P.A. reassignment RIELLO S.P.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LOVATO, ANDREA, TONIATO, GIUSEPPE
Publication of US20060040224A1 publication Critical patent/US20060040224A1/en
Abandoned legal-status Critical Current

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    • 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
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/74—Preventing flame lift-off
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/22—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes specially adapted for knitting goods of particular configuration
    • D04B1/225—Elongated tubular articles of small diameter, e.g. coverings or reinforcements for cables or hoses
    • 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
    • F23D14/14—Radiant burners using screens or perforated plates
    • F23D14/145—Radiant burners using screens or perforated plates combustion being stabilised at a screen or a perforated plate
    • 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
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/82—Preventing flashback or blowback
    • 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
    • F23D2900/00019—Outlet manufactured from knitted fibres
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear

Definitions

  • the present invention relates to a metal cover member for premix burner gas combustion heads.
  • the present invention also relates to a gas or vapourized liquid fuel burner comprising such a cover member.
  • the perforated metal combustion head from which the inflammable mixture is emitted can be covered with a specially constructed metal cover member.
  • Covering the combustion head with a metal cover member is particularly advantageous by enhancing heat exchange by radiation, while at the same time protecting the metal structure of the combustion head underneath. High modulation ratios and high-thermal-power premix applications can thus be achieved, which would otherwise be impossible on account of the severe thermal stress to which the combustion head is subjected.
  • the metal cover member also prevents the combustion head underneath from overheating to the extent that hazardous backfiring occurs.
  • the porosity of the metal cover member over the combustion head improves distribution of the fuel gas/air mixture, while at the same time reducing flame temperature and, hence, nitric oxide emissions.
  • the woven or sintered cover member is folded to fit completely over the cylindrical surface of the combustion head, the free portions of the cover member are welded together, and the cover member so formed is welded to the combustion head.
  • a cover member for gas combustion heads and a gas burner comprising such a cover member, as claimed in the accompanying independent Claims.
  • FIG. 1 shows a layout of a premix gas burner featuring an innovative cover member
  • FIG. 2 shows an enlarged detail of the perforated combustion head of the FIG. 1 burner fitted with the cover member which is the main object of the present invention
  • FIG. 3 shows a number of stitches of a tubular base structure from which the cover member in FIGS. 1 and 2 is formed;
  • FIG. 4 shows a tubular base structure made using at least one drawn wire and knitted by means of a first knitting operation
  • FIG. 5 shows a cover member formed by means of a second knitting operation using at least one tubular base structure formed by means of the first knitting operation; the tubular base structure is the one shown in FIGS. 3 and 4 ;
  • FIG. 6 shows an enlarged detail of the cover member in FIG. 5 ;
  • FIG. 7 shows a cover member formed by weaving a number of tubular base structures as shown in FIGS. 3 and 4 ;
  • FIG. 8 shows an enlarged detail of the cover member in FIG. 7 .
  • Number 10 in FIG. 1 indicates a premix gas burner featuring an innovative cover member in accordance with the present invention.
  • Burner 10 comprises a main body 11 supplied with fuel gas or vapourized liquid fuel by a pipe 12 .
  • Fuel gas flow along pipe 12 is controlled in the normal way by a pressure regulator 13 connected to main body 11 by a conduit 14 .
  • Pipe 12 terminates with a nozzle 15 at the end projecting inside body 11 .
  • a fan 16 integral with main body 11 , provides for feeding into main body 11 the amount of primary air required to burn the gas, or vapourized liquid fuel, supplied by nozzle 15 .
  • a substantially cylindrical, perforated metal combustion head 17 projects from body 11 .
  • combustion head 17 is fixed at a first end 17 a , as stated, to main body 11 , and is closed at a second end 17 b by a cap 18 .
  • the cylindrical outer surface 17 c of perforated metal combustion head 17 is covered with a cover member 19 b ( FIGS. 7 and 8 ) in accordance with one embodiment of the present invention.
  • combustion head 17 has a number of openings 20 through which the fuel gas/air mixture flows from body 11 and combustion head 17 outwards to where the mixture is ignited to form the flame (not shown).
  • the outer surface 17 c ( FIGS. 1, 2 ) of combustion head 17 is fitted with cover member 19 b.
  • the cover member 19 a ( FIG. 5 ), 19 b ( FIG. 7 ) is formed by interlacing at least one tubular base structure 40 shown by way of example in FIG. 4 .
  • FIG. 3 shows a number of stitches 31 a - 31 g of a tubular base structure 40 ( FIG. 4 ).
  • Stitches 31 a - 31 g are formed by knitting, by means of a first knitting operation, at least one metal wire 32 on a known knitting machine (not shown).
  • wire 32 is knitted using a knitting method commonly used, for example, in the manufacture of hosiery.
  • This method produces a tubular base structure 40 , as shown in FIG. 4 , in which stitches 31 a - 31 g are looped using a method also commonly used in the knitting industry, and particularly in the manufacture of nylon stockings.
  • the tubular base structure in FIG. 4 has a diameter of about 0.5 mm to 4 mm, and may be compressed to facilitate subsequent processing.
  • wire 32 from which stitches 31 a - 31 g are formed has a diameter of 0.05 mm to 1 mm.
  • Wire 32 is normally formed by drawing alloys resistant to high temperature and corrosion, such as NiCr or FeCrAl.
  • the tubular base structure 40 ( FIG. 4 ) described is much lighter than stranded wire (not shown) used in conventional cover members (not shown).
  • a stranded wire in fact, is formed by combining a number of wires or fibres, and gives rise to a solid, heavy structure.
  • the tubular base structure 40 in FIG. 4 is characterized by being lightweight and extremely porous.
  • the porosity of cover member 19 a ( FIG. 5 ), 19 b ( FIG. 7 ) is a fundamental parameter in combustion applications.
  • Porosity in fact, affects nitric oxide emission values, and reduces the load losses of combustion head 17 ; and adequate porosity of cover member 19 a , 19 b also aids in preventing backfiring.
  • the light weight of cover member 19 a , 19 b reduces thermal inertia, which is an important factor in reducing the heating time of the burner at start-up. In fact, the shorter the heating time is, the more stable the flame will be. Also, when the burner is turned off, faster cooling reduces thermal stress of combustion head 17 , thus reducing wear.
  • the light weight of cover member 19 a , 19 b also means less material is required.
  • the number of needles (not shown) used to produce tubular base structure 40 determines to some extent the elasticity and porosity of the finished article.
  • the same knitting method used to produce tubular base structure 40 may also be used to produce cover member 19 a in FIGS. 5, 6 .
  • the cover member 19 a in FIG. 5 which represents a first embodiment of the present invention, is formed by means of a second knitting operation using at least one tubular base structure 40 formed using the first knitting operation described with reference to FIGS. 3 and 4 .
  • Performing a second knitting operation using at least one tubular base structure 40 advantageously produces a tubular cover member 19 a as shown in FIG. 5 , and which can be fitted directly onto the combustion head. In this case, no welding is required to loop cover member 19 a , thus simplifying manufacture and use of cover member 19 a.
  • cover member 19 a In the second knitting operation, it is essential to control the overall elasticity of cover member 19 a and form a type of knit which, once fitted on, permits thermal expansion of combustion head 17 during operation of burner 10 .
  • cover member 19 a adheres to combustion head 17 .
  • cover member 19 a When producing cover member 19 a , it is important to avoid ladders which, in service, are particularly hazardous by giving rise to backfiring. Ladders may be avoided by using special knit configurations known in literature.
  • the type of knit also determines the porosity of the final structure.
  • tubular base structures 40 in FIG. 4 can be assembled by straightforward weaving on a frame (not shown), and the finished article may be flat or tubular, depending on the type of loom used.
  • FIGS. 7 and 8 One example of a cover member 19 b of this type is shown in FIGS. 7 and 8 .
  • the FIG. 8 detail shows the weft 50 and warp 51 configuration typical of a cover member 19 b woven on a loom (not shown).
  • weft 50 is defined by a number of tubular base structures 40 a , 40 b , 40 c , and the warp 51 by tubular base structures 40 d , 40 e , 40 f ; and weft 50 and warp 51 are woven on a frame (not shown).
  • Tubular base structures 40 a - 40 f are all formed as described with reference to FIGS. 3 and 4 .
  • cover member 19 b in the second embodiment poses no danger of laddering.
  • Both the intrinsic characteristics of combustion head 17 and knitting or weaving cover member 19 a or 19 b provide for achieving the porosity and elasticity of cover member 19 a , 19 b required when applied to premix burners 10 .
  • cover member 19 a , 19 b provides for generating the flame front inside and downstream from cover member 19 a , 19 b (in the flow direction of the premixed mixture), thus averting any danger of backfiring.
  • cover member 19 a , 19 b enables it to be fitted on cold, and permits in-service thermal expansion of the supporting combustion head 17 .
  • cover member 19 a , 19 b Another advantage, as stated, of the cover member 19 a , 19 b proposed is that it can be fitted onto perforated combustion head 17 and used with no need for welding to loop it, thus simplifying production and use of the cover member.
  • cover member 19 a , 19 b generally adheres to perforated combustion head 17 . In some applications, however, it may prove useful to weld it to combustion head 17 .
  • the single wire 32 ( FIG. 3 ) used to form tubular base structure 40 may be made of high-temperature-resistant alloy, such as NiCr or FeCrAl.

Abstract

A cover member for gas combustion heads. The cover member has at least one tubular base structure. And the tubular base structure is formed by knitting at least one metal wire.

Description

  • The present invention relates to a metal cover member for premix burner gas combustion heads.
  • The present invention also relates to a gas or vapourized liquid fuel burner comprising such a cover member.
    • BACKGROUND OF THE INVENTION
  • As is known, in premix combustion heads, i.e. in which gas and air are mixed upstream from the combustion region where the flame is generated, the perforated metal combustion head from which the inflammable mixture is emitted can be covered with a specially constructed metal cover member.
  • Covering the combustion head with a metal cover member is particularly advantageous by enhancing heat exchange by radiation, while at the same time protecting the metal structure of the combustion head underneath. High modulation ratios and high-thermal-power premix applications can thus be achieved, which would otherwise be impossible on account of the severe thermal stress to which the combustion head is subjected.
  • The metal cover member also prevents the combustion head underneath from overheating to the extent that hazardous backfiring occurs.
  • Finally, the porosity of the metal cover member over the combustion head improves distribution of the fuel gas/air mixture, while at the same time reducing flame temperature and, hence, nitric oxide emissions.
  • In premix radiant burners, known solutions employ appropriately shaped woven or sintered cover members fitted to the combustion heads.
  • In the case of a burner with a cylindrical perforated combustion head, the woven or sintered cover member is folded to fit completely over the cylindrical surface of the combustion head, the free portions of the cover member are welded together, and the cover member so formed is welded to the combustion head.
    • SUMMARY OF THE INVENTION
  • It is an object of the present invention to provide a cover member for gas burners, and a gas or vapourized liquid fuel burner comprising such a cover member, which is improved with respect to currently marketed types.
  • According to the present invention, there are provided a cover member for gas combustion heads, and a gas burner comprising such a cover member, as claimed in the accompanying independent Claims.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • Two non-limiting embodiments of the present invention will be described by way of example with reference to the accompanying drawings, in which:
  • FIG. 1 shows a layout of a premix gas burner featuring an innovative cover member;
  • FIG. 2 shows an enlarged detail of the perforated combustion head of the FIG. 1 burner fitted with the cover member which is the main object of the present invention;
  • FIG. 3 shows a number of stitches of a tubular base structure from which the cover member in FIGS. 1 and 2 is formed;
  • FIG. 4 shows a tubular base structure made using at least one drawn wire and knitted by means of a first knitting operation;
  • FIG. 5 shows a cover member formed by means of a second knitting operation using at least one tubular base structure formed by means of the first knitting operation; the tubular base structure is the one shown in FIGS. 3 and 4;
  • FIG. 6 shows an enlarged detail of the cover member in FIG. 5;
  • FIG. 7 shows a cover member formed by weaving a number of tubular base structures as shown in FIGS. 3 and 4;
  • FIG. 8 shows an enlarged detail of the cover member in FIG. 7.
    • DETAILED DESCRIPTION OF THE INVENTION
  • Number 10 in FIG. 1 indicates a premix gas burner featuring an innovative cover member in accordance with the present invention.
  • Burner 10 comprises a main body 11 supplied with fuel gas or vapourized liquid fuel by a pipe 12. Fuel gas flow along pipe 12 is controlled in the normal way by a pressure regulator 13 connected to main body 11 by a conduit 14.
  • Pipe 12 terminates with a nozzle 15 at the end projecting inside body 11.
  • A fan 16, integral with main body 11, provides for feeding into main body 11 the amount of primary air required to burn the gas, or vapourized liquid fuel, supplied by nozzle 15.
  • A substantially cylindrical, perforated metal combustion head 17 projects from body 11.
  • As shown in FIG. 1, combustion head 17 is fixed at a first end 17 a, as stated, to main body 11, and is closed at a second end 17 b by a cap 18.
  • As shown in FIGS. 1 and 2, the cylindrical outer surface 17 c of perforated metal combustion head 17 is covered with a cover member 19 b (FIGS. 7 and 8) in accordance with one embodiment of the present invention.
  • As shown particularly in FIG. 2, combustion head 17 has a number of openings 20 through which the fuel gas/air mixture flows from body 11 and combustion head 17 outwards to where the mixture is ignited to form the flame (not shown). As stated, the outer surface 17 c (FIGS. 1, 2) of combustion head 17 is fitted with cover member 19 b.
  • With reference to FIGS. 5 and 7, the cover member 19 a (FIG. 5), 19 b (FIG. 7) is formed by interlacing at least one tubular base structure 40 shown by way of example in FIG. 4.
  • FIG. 3 shows a number of stitches 31 a-31 g of a tubular base structure 40 (FIG. 4). Stitches 31 a-31 g are formed by knitting, by means of a first knitting operation, at least one metal wire 32 on a known knitting machine (not shown).
  • More specifically, as shown in FIG. 3, wire 32 is knitted using a knitting method commonly used, for example, in the manufacture of hosiery.
  • This method produces a tubular base structure 40, as shown in FIG. 4, in which stitches 31 a-31 g are looped using a method also commonly used in the knitting industry, and particularly in the manufacture of nylon stockings.
  • Advantageously, though not necessarily, the tubular base structure in FIG. 4 has a diameter of about 0.5 mm to 4 mm, and may be compressed to facilitate subsequent processing.
  • Advantageously, though not necessarily, wire 32 from which stitches 31 a-31 g are formed has a diameter of 0.05 mm to 1 mm.
  • Wire 32 is normally formed by drawing alloys resistant to high temperature and corrosion, such as NiCr or FeCrAl.
  • The tubular base structure 40 (FIG. 4) described is much lighter than stranded wire (not shown) used in conventional cover members (not shown). A stranded wire, in fact, is formed by combining a number of wires or fibres, and gives rise to a solid, heavy structure.
  • The tubular base structure 40 in FIG. 4, on the other hand, is characterized by being lightweight and extremely porous.
  • The porosity of cover member 19 a (FIG. 5), 19 b (FIG. 7) is a fundamental parameter in combustion applications.
  • Porosity, in fact, affects nitric oxide emission values, and reduces the load losses of combustion head 17; and adequate porosity of cover member 19 a, 19 b also aids in preventing backfiring.
  • The light weight of cover member 19 a, 19 b reduces thermal inertia, which is an important factor in reducing the heating time of the burner at start-up. In fact, the shorter the heating time is, the more stable the flame will be. Also, when the burner is turned off, faster cooling reduces thermal stress of combustion head 17, thus reducing wear. The light weight of cover member 19 a, 19 b also means less material is required.
  • The number of needles (not shown) used to produce tubular base structure 40 (FIG. 4) determines to some extent the elasticity and porosity of the finished article.
  • The same knitting method used to produce tubular base structure 40 may also be used to produce cover member 19 a in FIGS. 5, 6.
  • In actual fact, the cover member 19 a in FIG. 5, which represents a first embodiment of the present invention, is formed by means of a second knitting operation using at least one tubular base structure 40 formed using the first knitting operation described with reference to FIGS. 3 and 4.
  • Performing a second knitting operation using at least one tubular base structure 40 advantageously produces a tubular cover member 19 a as shown in FIG. 5, and which can be fitted directly onto the combustion head. In this case, no welding is required to loop cover member 19 a, thus simplifying manufacture and use of cover member 19 a.
  • In the second knitting operation, it is essential to control the overall elasticity of cover member 19 a and form a type of knit which, once fitted on, permits thermal expansion of combustion head 17 during operation of burner 10.
  • Once fitted on, cover member 19 a adheres to combustion head 17.
  • Though the solution proposed is particularly suitable for cylindrical combustion heads 17, this does not exclude the possibility of using cover member 19 a on combustion heads of other shapes or on flat structures.
  • When producing cover member 19 a, it is important to avoid ladders which, in service, are particularly hazardous by giving rise to backfiring. Ladders may be avoided by using special knit configurations known in literature.
  • The type of knit also determines the porosity of the final structure.
  • In a second embodiment of the present invention shown in FIGS. 7 and 8, as opposed to the second knitting operation described with reference to FIGS. 5 and 6, tubular base structures 40 in FIG. 4 can be assembled by straightforward weaving on a frame (not shown), and the finished article may be flat or tubular, depending on the type of loom used.
  • One example of a cover member 19 b of this type is shown in FIGS. 7 and 8. The FIG. 8 detail shows the weft 50 and warp 51 configuration typical of a cover member 19 b woven on a loom (not shown).
  • More specifically, the weft 50 is defined by a number of tubular base structures 40 a, 40 b, 40 c, and the warp 51 by tubular base structures 40 d, 40 e, 40 f; and weft 50 and warp 51 are woven on a frame (not shown).
  • Tubular base structures 40 a-40 f are all formed as described with reference to FIGS. 3 and 4.
  • The elasticity achieved by weaving as in FIGS. 7 and 8 is also ensured by the elasticity of tubular base structures 40 a-40 f.
  • Unlike cover member 19 a in the first embodiment, however, cover member 19 b in the second embodiment poses no danger of laddering.
  • Various types of weave can be used to obtain the desired porosity.
  • Both the intrinsic characteristics of combustion head 17 and knitting or weaving cover member 19 a or 19 b provide for achieving the porosity and elasticity of cover member 19 a, 19 b required when applied to premix burners 10.
  • More specifically, the porosity of cover member 19 a, 19 b provides for generating the flame front inside and downstream from cover member 19 a, 19 b (in the flow direction of the premixed mixture), thus averting any danger of backfiring.
  • The elasticity of cover member 19 a, 19 b enables it to be fitted on cold, and permits in-service thermal expansion of the supporting combustion head 17.
  • Another advantage, as stated, of the cover member 19 a, 19 b proposed is that it can be fitted onto perforated combustion head 17 and used with no need for welding to loop it, thus simplifying production and use of the cover member.
  • Moreover, once fitted on, cover member 19 a, 19 b generally adheres to perforated combustion head 17. In some applications, however, it may prove useful to weld it to combustion head 17.
  • Advantageously, though not necessarily, the single wire 32 (FIG. 3) used to form tubular base structure 40 may be made of high-temperature-resistant alloy, such as NiCr or FeCrAl.

Claims (8)

1) A cover member (19 a, 19 b) for gas or vapourized liquid fuel combustion heads (17); the cover member (19 a, 19 b) being characterized by comprising at least one tubular base structure (40), and each tubular base structure (40) being formed by means of a first knitting operating using at least one metal wire (32).
2) A cover member (19 a, 19 b) as claimed in claim 1, characterized in that said cover member (19 a) is formed by means of a second knitting operation using at least one tubular base structure (40) formed by means of said first knitting operation.
3) A cover member (19 a, 19 b) as claimed in claim 1, characterized in that said cover member (19 b) is formed by means of a weaving operation using at least one tubular base structure (40) formed by means of said first knitting operation.
4) A cover member (19 a, 19 b) as claimed in claim 1, characterized by being in the form of a seamless stocking.
5) A cover member (19 a, 19 b) as claimed in claim 1, characterized in that said tubular base structure (40) has a diameter of 0.5 mm to 4 mm.
6) A cover member (19 a, 19 b) as claimed in claim 5, characterized in that said tubular base structure (40) is formed using at least one wire (32) of 0.05 mm to 1 mm in diameter.
7) A cover member (19 a, 19 b) as claimed in claim 6, characterized in that said wire (32) is formed by drawing high-temperature-resistant materials, such as NiCr or FeCrAl alloys.
8) A premix gas or vapourized liquid fuel burner (10), characterized by comprising at least one cover member (19 a, 19 b) as claimed in claim 1.
US11/013,479 2003-12-18 2004-12-17 Cover member for a gas combustion heads, and gas burner comprising such a cover member Abandoned US20060040224A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP03425807.9 2003-12-18
EP03425807A EP1544542B1 (en) 2003-12-18 2003-12-18 Cover member for gas combustion heads, and gas burner comprising such a cover member

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US20060040224A1 true US20060040224A1 (en) 2006-02-23

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EP (1) EP1544542B1 (en)
CN (1) CN1648524A (en)
DE (1) DE60323516D1 (en)
ES (1) ES2312746T3 (en)

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US20060251998A1 (en) * 2003-04-18 2006-11-09 Dinand Lamberts Metal burner membrane
US20080236564A1 (en) * 2007-03-28 2008-10-02 Constantin Burtea Wire mesh burner plate for a gas oven burner
US20100139650A1 (en) * 2007-04-12 2010-06-10 Michael Pritchard Burner device
JP2012220135A (en) * 2011-04-12 2012-11-12 Corona Corp Combustion device
CN102899945A (en) * 2012-11-07 2013-01-30 江西瑞金金字电线电缆有限公司 Sealing woven rope
JP2014009838A (en) * 2012-06-28 2014-01-20 Purpose Co Ltd Burner, combustion method and hot water supply device
US8637792B2 (en) 2011-05-18 2014-01-28 Prince Castle, LLC Conveyor oven with adjustable air vents
US9182119B2 (en) 2009-08-18 2015-11-10 Sandvik Intellectual Property Ab Radiant burner
US10281173B2 (en) 2012-06-28 2019-05-07 Purpose Co., Ltd. Burner, combustion apparatus, method for combustion, method for controlling combustion, recording medium, and water heater
US11435091B2 (en) * 2016-09-20 2022-09-06 Goodman Manufacturing Company LP Low NOx tubular mesh burner and methods of use

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WO2007081312A1 (en) * 2006-01-05 2007-07-19 Norgren, Inc. An asymetrical k-ring
EP2045522A1 (en) 2007-10-05 2009-04-08 Riello S.p.A. Hybrid combustion boiler
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ITMI20121643A1 (en) * 2012-10-02 2014-04-03 Worgas Bruciatori Srl BURNER WITH FABRIC DIFFUSER
CN108716672A (en) * 2018-06-08 2018-10-30 江苏智道工程技术有限公司 Metal grid combustion head

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EP1544542A1 (en) 2005-06-22
EP1544542B1 (en) 2008-09-10

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