US20070298361A1 - Burner with Diffuser Resistant to High Operating Temperatures - Google Patents

Burner with Diffuser Resistant to High Operating Temperatures Download PDF

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Publication number
US20070298361A1
US20070298361A1 US11/629,996 US62999605A US2007298361A1 US 20070298361 A1 US20070298361 A1 US 20070298361A1 US 62999605 A US62999605 A US 62999605A US 2007298361 A1 US2007298361 A1 US 2007298361A1
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United States
Prior art keywords
rows
burner according
elements
diffuser
openings
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Abandoned
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US11/629,996
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English (en)
Inventor
Giuseppe Fogliani
Massimo Gilioli
Massimo Dotti
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Beckett Thermal Solutions SRL
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Worgas Bruciatori SRL
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Assigned to WORGAS BRUCIATORI S.R.L. reassignment WORGAS BRUCIATORI S.R.L. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DOTTI, MASSIMO, FOGLIANI, GIUSEPPE, GILIOLI, MASSIMO
Publication of US20070298361A1 publication Critical patent/US20070298361A1/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
    • F23D14/48—Nozzles
    • F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
    • F23D14/583—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration of elongated shape, e.g. slits
    • 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
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/10—Flame diffusing means
    • F23D2203/101—Flame diffusing means characterised by surface shape
    • F23D2203/1012—Flame diffusing means characterised by surface shape tubular

Definitions

  • the present invention relates to a burner with a diffuser resistant to high operating temperatures, in particular to a premix burner.
  • the high thermal stresses can easily causes deformation and mechanical stresses on the diffuser of the burner, which may cause the diffuser to break.
  • This drawback occurs with any form of diffuser of the burner, but has been shown to be particularly serious in burners with flat diffusers.
  • special materials for making the diffuser of the burner for example a metal mesh or a ceramic material.
  • Burners of this type are known from patent applications M02003A000180 and M02004A000031, in the name of the same applicant.
  • burners wherein the diffuser of the burner is divided into a plurality of diffuser elements that are adjacent to one another, that are free to expand in at least one direction.
  • the present invention aims at providing burners of the aforementioned type with divided diffusers that are simpler and cheaper to make.
  • a burner is provided that is suppliable with a mixture of air and fuel, comprising a burner body provided with a diffuser on which openings are made for the passage and subsequent combustion of said mixture, said diffuser being divided into a plurality of diffuser elements that are adjacent to one another, characterised in that said diffuser elements are fixed to a support and distribution element provided with first mechanical coupling means for coupling with said diffuser elements and with openings for distributing said mixture to said diffuser elements.
  • the construction and assembly of the burner is significantly simplified, in as much as a same element acts as a support for the diffuser elements and as a distributor of the mixture to the diffuser elements and it is therefore no longer necessary to provide a distributing element for each diffuser element. Furthermore, fixing the diffuser elements to said support and distribution element is very simple and rapid to achieve, thus reducing considerably burner assembly time.
  • FIG. 1 is a view from above of a burner according to the invention, with a substantially flat diffuser
  • FIG. 2 is a view from above of a support element of the diffuser of the burner in FIG. 1 , that also acts as a distributing element of the mixture with which the burner is supplied;
  • FIG. 3 is a view from above of a diffuser element of a burner according to the invention.
  • FIGS. 4 and 5 are, respectively, a side view and a frontal view of the diffuser element of FIG. 3 ;
  • FIG. 6 is a perspective view of the diffuser element of FIG. 3 ;
  • FIG. 7 is a perspective view of a burner according to the invention, with a prismatic diffuser
  • FIG. 8 is an elevation view of the burner in FIG. 7 ;
  • FIG. 9 is a plan view of the burner in FIG. 7 ;
  • FIG. 10 is a perspective view of a further embodiment of a support and distribution element for a burner diffuser according to the invention.
  • FIG. 11 is a perspective view of a burner diffuser made with the support and distribution element of FIG. 10 ;
  • FIG. 12 is a perspective view of a still further embodiment of a support and distribution element for a burner diffuser according to the invention.
  • FIG. 13 is a view from above of the support and distribution element in FIG. 12 ;
  • FIG. 14 is a perspective view of a burner diffuser made with the support and distribution element in FIG. 12 ;
  • FIG. 15 is a view from above of the burner diffuser in FIG. 14 ;
  • FIG. 16 is a perspective view of another embodiment of a support and distribution element for a burner diffuser according to the invention.
  • FIG. 17 is a perspective view of a burner diffuser made with the support and distribution element of FIG. 16 ;
  • FIG. 18 is a perspective view of a support frame for a burner diffuser according to the invention.
  • FIGS. 19-23 illustrate details of the frame in FIG. 18 .
  • FIG. 24 is a perspective view of a burner diffuser fitted in the frame of FIG. 18 ;
  • FIG. 25 is a partial view from above of FIG. 24 ;
  • FIG. 26 is the section XXVI-XXVI of FIG. 25 ;
  • FIG. 27 is the section XXVII-XXVII of FIG. 25 ;
  • FIG. 28 is an enlarged detail of FIG. 25 ;
  • FIG. 29 is the section XXIX-XXIX of FIG. 25 ;
  • FIG. 30 is a view from above of a further embodiment of burner diffuser according to the invention.
  • FIG. 31 is a perspective view of the diffuser in FIG. 30 ;
  • FIG. 32 is a side view of the diffuser in FIG. 30 ;
  • FIG. 33 is an enlarged detail of FIG. 32 ;
  • FIG. 34 is a view from above of a further embodiment of a support and distribution element for a burner diffuser according to the invention.
  • FIG. 35 is a perspective view of the support and distribution element in FIG. 34 ;
  • FIG. 36 is the section XXXVI-XXXVI in FIG. 34 ;
  • FIG. 37 is the section XXXVII-XXXVII in FIG. 34 ;
  • FIG. 38 is a perspective view of a burner diffuser made with the support and distribution element in FIG. 34 ;
  • FIG. 39 is a view from above of a burner diffuser according to the invention, which illustrates an alternative arrangement of the diffuser elements on a support and distribution element;
  • FIG. 40 is a view like the one in FIG. 39 , that illustrates a further arrangement of the diffuser elements on a support and distribution element;
  • FIG. 41 is a view like those in FIGS. 39 and 40 , which illustrates a still further arrangement of the diffuser elements on a support and distribution element
  • FIG. 42 is a perspective view of a further embodiment of a support and distribution element according to the invention.
  • FIG. 43 is a view according to arrow F of the support and distribution element in FIG. 42 ;
  • FIG. 44 is a perspective view of a further embodiment of a support and distribution element according to the invention.
  • FIG. 45 is a view according to arrow F 1 of the support and distribution element in FIG. 44 ;
  • FIG. 46 is a perspective view of a further embodiment of a support and distribution element according to the invention, schematising the coupling to a wall of a heat exchanger, or of a combustion chamber;
  • FIG. 47 is a perspective view of the support and distribution element in FIG. 35 , schematising the coupling to a wall of a heat exchanger, or of a combustion chamber.
  • FIG. 1 illustrates a first embodiment of a burner according to the invention wherein the diffuser 1 consists of a plurality of diffuser elements 2 , shown in detail in FIGS. 3 to 6 , each of which has a substantially open box shape, with an upper face 3 intended to face the outside of the burner, two front faces 4 , substantially perpendicular to the smaller sides of the upper face 3 and two side faces 5 , 6 , substantially perpendicular to the larger sides of the upper face 3 .
  • On the upper face 3 openings 7 , 8 , 9 are made for the exit of the mixture of air and fuel supplied to the burner.
  • Said openings comprise rows of slits 7 , for example two rows parallel to one another between which a plurality of holes 8 is arranged.
  • further slits 9 can be arranged that extend over the entire width of said upper face 18 .
  • These further slits 9 in addition to acting as further openings for the passage of said mixture, enable said upper face 3 to absorb heat expansion without being subject to excessive mechanical stresses generated by said expansion.
  • appendages 10 protrude that are tilted towards the corresponding appendages 10 of the opposite side face, the function of which will be explained below.
  • the diffuser elements 2 are fitted next to one another on a support and distribution element 11 , that may have the form of a flat quadrangular plate, as shown in FIGS. 1 and 2 , but may also have a polygonal, circular oval shape and have a convex surface.
  • a support and distribution element 11 may have the form of a flat quadrangular plate, as shown in FIGS. 1 and 2 , but may also have a polygonal, circular oval shape and have a convex surface.
  • slits 12 are made that are arranged in rows that are substantially parallel to one another and are intended to be coupled with the appendages 10 of the diffuser elements 2 to fix the elements in position.
  • the plate 11 is furthermore provided with groups of rows of holes 13 , each group being arranged between two rows of slits 12 , in such a way as to be level with a diffuser element 2 when the diffuser elements 2 are fitted to the plate 11 .
  • the groups of rows of holes 13 distribute the mixture of air and fuel delivered to the burner to the openings 7 , 8 , 9 of each diffuser element 2 , guaranteeing a distribution of the flow of mixture to the aforementioned openings.
  • the rows of slits 12 and the rows of holes 13 can be arranged parallel to a pair of opposite sides of the plate 11 or tilted in relation to the sides of the plate 11 .
  • the plate 11 performs both the function of support to the diffuser elements 2 and the function of distributor of the flow of mixture, which makes the burner structure more compact and makes assembly thereof very simple, it no longer being necessary to provide a separate distributor element for each diffuser element.
  • the plate 11 with the diffuser elements 2 that are fixed to it, constituting the diffuser 1 of the burner, can be fixed to a support frame, with a shape corresponding to the shape of the plate 11 , which will be disclosed below.
  • the diffuser elements 2 can be made of metal, ceramic material or of any other material resistant to the operating temperatures of the burner.
  • the upper face 3 of the diffuser elements 2 rather than being provided with the openings 7 , 8 , 9 , can be made of porous material with pore dimensions sufficient to ensure the passage of the mixture of air and fuel without excessive load losses.
  • FIGS. 7, 8 and 9 show a second embodiment of a burner according to the invention, in which the diffuser elements 2 are fixed to a support and distribution element 14 with a prismatic shape, which similarly to the plate 11 disclosed previously, also performs the function of distributor of the mixture of air and fuel delivered to the burner.
  • Each face of the support and distribution element 14 is provided with two parallel rows of slits 12 , intended to be coupled with the appendages of a diffuser element 2 , to fix in position the diffuser element 2 on the respective face of the support element 14 .
  • parallel rows of holes 13 are arranged, to distribute the mixture to the openings made on the upper face of the diffuser element 2 .
  • the burner is completed by an upper base and by a lower base that are not shown, in one of which a hole is made for connecting a pipe supplying the mixture of air and fuel.
  • the support and distribution element 14 may as an alternative have a cylindrical shape, in which the diffuser elements 2 will preferably have a slightly arched shape, in such a way as to define as a whole a diffuser 1 with a substantially cylindrical shape.
  • FIGS. 10 to 17 further versions of the support and distribution element in a burner according to the invention are shown.
  • FIGS. 10 and 11 a support and distribution element 14 a is shown that has an upper face 15 in which a plurality of rows of slits 12 is made for fixing diffuser elements 2 ; between pairs of rows of adjacent slits 12 rows of holes 13 are made for distributing to the respective diffuser element 2 the mixture of air and fuel supplied to the burner. Both the rows of slits 12 and the rows of holes 13 are arranged parallel to a pair of opposite sides of said upper face 15 .
  • the support and distribution element 14 a furthermore has two L-shaped side faces 16 , 17 connected to a pair of opposite sides of the upper face 15 , to constitute two support feet for the support and distribution element, suitable for example for facilitating the coupling with a support frame and/or adjusting the height of the diffuser of the burner inside a combustion chamber, by varying for example the height H of the side faces 16 , 17 .
  • the rows of slits 12 and the rows of holes 13 are arranged perpendicular to the pair of sides to which the side faces 16 and 17 are connected.
  • FIGS. 11 and 14 , 15 another version of a support and distribution element 14 b according to the invention is shown, which differs from the support and distribution element 14 a inasmuch as the rows of slits 12 and the rows of holes 13 are parallel to the pair of sides to which the side faces 16 and 17 are connected.
  • a burner according to the invention can be made with a support and distribution element 14 a , 14 b , with the respective diffuser elements 2 fixed thereto ( FIGS. 11 and 14 , 15 ), all fitted in a support frame.
  • a burner according to the invention can be made with a plurality of support and distribution elements 14 a , 14 b that are placed near one another and fitted in a containing frame, with the respective diffuser elements 2 fixed to each support and distribution element 14 a , 14 b.
  • FIGS. 16 and 17 a still further version of a support and distribution element 14 c is shown that differs from the support and distribution elements 14 a and 14 b by the fact that it has a box structure with an L-shaped side face 16 , 17 , 18 , 19 connected to each of the sides of the upper face 15 ; rows of slits 12 and holes 13 are arranged parallel to a pair of opposite sides of the upper face 15 of the support and distribution element 14 c.
  • the rows of slits 12 and the rows of holes 13 made in the upper face 15 of the support and distribution elements 14 a , 14 b , 14 c can also be arranged tilted in relation to the sides of said upper face 15 .
  • the upper face 15 of the support and distribution elements 14 a , 14 b , 14 c similarly to the plate 11 , may be flat and quadrangular in shape, but also have a polygonal, circular, oval shape and have a convex surface.
  • FIGS. 18 to 23 show an embodiment of a support and containing frame 21 , with which the support and distribution elements 11 , 14 a , 14 b , 14 c can be coupled, with the relative diffuser elements 2 , to assemble a burner according to the invention.
  • the frame 21 is a composable frame 21 , consisting of two pairs of frame elements 22 , 22 a ; 23 , 23 a that are assemblable together.
  • Each element 22 , 22 a of the first pair of frame elements consists of a substantially rectangular flat element 24 a longitudinal edge 25 of which is folded back into a squashed “S” shape, with an upper part 25 a having a height a and a lower part 25 b having a height b ⁇ a.
  • Each element 23 , 23 a of the second pair of frame elements also consists of a flat element 26 , a longitudinal edge 27 of which is folded back into a non-squashed “S” shape, with an upper part 27 a having a height c and a lower part 27 b having a height d.
  • the height c of the upper part 27 a of the longitudinal edge 27 is less than the height a of the upper part 25 a of the longitudinal edge 25 and the height d of the lower part 27 b of the longitudinal edge 27 is greater than the height b of the lower part 25 b of the longitudinal edge 25 .
  • the frame elements 22 , 22 a , 23 , 23 a are coupled together to form a quadrangular frame, as shown in FIG. 18 , by inserting the upper part 27 a of each edge 27 of the frame elements 23 , 23 a inside the upper part 25 a of each edge 25 of a corresponding frame element 22 , 22 a , whereas the lower part 25 b of each edge 25 of the frame elements 22 , 22 a is inserted into the lower part 27 b of a corresponding frame element 23 , 23 a , all as shown in FIG. 19 .
  • the fixing of the frame elements 22 , 22 a , 23 , 23 a can be achieved by crushing the elements after they have been coupled together and can be reinforced by welding.
  • FIGS. 24 to 29 illustrate the assembly of a support and distribution plate according to the invention, for example a plate of the type shown in FIGS. 1 and 2 .
  • Two opposite edges 11 a of the plate 11 are inserted inside the upper parts 25 a of the longitudinal edges 25 , folded into the shape of a squashed “S”, of the elements 23 , 23 a , of the frame 21 , as shown in FIGS. 26 and 27 , whereas the other two opposite edges 11 b of the plate 11 are inserted in upper parts 27 a of the longitudinal edges 27 , folded into the shape of a non-squashed “S”, of the elements 22 , 22 a of the frame 21 , as shown in the FIG. 29 .
  • the plate 11 shown in FIGS. 24 to 29 has a slightly convex shape, but the same assembly can be achieved with a flat plate 11 , or with a plate 14 a , 14 b , 14 c.
  • FIGS. 30 to 33 show another diffuser version 28 , associable with a frame 21 like the one shown in FIG. 18 and/or a support and distribution plate 11 , 14 a , 14 b , 14 c.
  • the diffuser 28 consists of a plurality of diffuser elements 29 arranged parallel to one another and connected together along the longer sides by elastic-hinge connecting means 30 .
  • the elastic-hinge connecting means 30 are used to absorb the heat expansion generated by the temperature variations to which the diffuser 28 is subjected during burner operation, thus enabling a reduction of the mechanical stresses due to said heat expansion and an increase in the working life of the diffuser 28 .
  • the diffuser 28 may be provided with appendages similar to the appendages 10 of the previously disclosed diffuser elements 2 for coupling with a support and distribution plate 11 , 14 a , 14 b , 14 c.
  • FIGS. 34 to 37 show a further embodiment of a support and distribution element 31 according to the invention, which has an upper face 32 in which a plurality of rows of slits 12 is made for fixing diffuser elements 31 ; between pairs of rows of adjacent slits 12 rows of holes 13 are made for distribution to the respective diffuser element 2 of the mixture of air and fuel supplied to the burner. Both the rows of slits 12 and the rows of holes 13 are arranged parallel to a pair of opposite sides of said upper face 15 .
  • the support and distribution element 31 furthermore has two side faces 33 , 34 connected to a pair of opposite sides of the upper face 32 .
  • the side faces 33 , 34 are each provided with a recess 35 , 36 that extends over the entire length of the respective side face 33 , 34 .
  • the recesses 35 , 36 are suitable for facilitating, for example, coupling with a support frame and/or enabling easy coupling of the support and distribution element 31 with a combustion chamber or a heat exchanger.
  • the upper face 32 of the support and distribution element 31 similarly to the plate 11 and to the upper face 15 of the support and distribution elements 14 a , 14 b , 14 c , may be flat and quadrangular in shape but may also have a polygonal, circular, oval shape and have a convex surface.
  • the diffuser elements 2 can be assembled on the support and distribution elements 11 , 14 a , 14 b , 14 c , 31 , not only in configurations shown in FIGS. 1, 11 , 14 , 15 , 17 , 38 , but also according to any other configuration. Certain non-limitative examples of other configurations of the diffuser elements 2 are illustrated in FIGS. 39, 40 and 41 .
  • FIG. 39 illustrates a support and distribution element 11 , on which three groups of diffuser elements 31 are arranged.
  • the diffuser elements 2 of each group are parallel to one another whereas the diffuser elements 2 of the central group are oriented in a direction substantially perpendicular to the diffuser elements 2 of the other two groups.
  • FIG. 40 illustrates a support and distribution element 11 on which two groups of diffuser elements 2 are arranged that are separated by a space S free of diffuser elements.
  • FIG. 41 illustrates a support and distribution element 11 , on which four groups of diffuser elements 2 are arranged tilted in relation to the sides of the support and distribution element and delimiting a central space S 1 free of diffuser elements 2 .
  • the slits 12 and the holes 13 on the support and distribution element must be arranged in such a way as to correspond to the arrangement of the diffuser elements 31 .
  • any other arrangement configuration of the diffuser elements 2 is possible, by distributing in a corresponding manner the slits 12 and the holes 13 , the configuration of the diffuser elements 2 thus being adaptable, for example, to the features of the heat exchanger of a boiler in which a burner according to the invention is installed.
  • FIGS. 42 and 43 illustrate a further version of a support and distribution element 37 , that has an upper face 38 in which a plurality of rows of slits 12 is made for fixing diffuser elements 2 ; between pairs of adjacent rows of slits 12 rows of holes 13 are made for the distribution to the respective diffuser element 2 of the mixture of air and fuel supplied to the burner. Both the rows of slits 12 , and the rows of holes 13 are arranged parallel to a pair of opposite sides of said upper face 15 .
  • the support and distribution element 37 furthermore has two side faces 39 , 40 connected to a pair of opposite sides of the upper face 38 .
  • the side faces 39 , 40 are each provided with a plurality of recesses 41 arranged on each of said side faces 39 , 40 .
  • the recesses 41 are suitable for facilitating, for example, coupling with a support frame and/or enabling easy coupling of the support and distribution element 31 with a combustion chamber or a heat exchanger.
  • FIGS. 44 and 45 illustrate a further embodiment of a support and distribution element 42 according to the invention that differs from the support and distribution element 37 shown in FIGS. 42 and 43 due to the fact that the side faces 39 , 40 are provided with a plurality of protrusions 43 , having the same function as the recesses 41 made on the side faces 39 , 40 of the support and distribution element 37 .
  • FIG. 46 shows a further embodiment of a support and distribution element 44 according to the invention, similar to the support and distribution element 31 shown in FIG. 35 , from which it differs due to the fact that the side faces 33 , 34 are each provided with respective protrusions 45 , 46 that extend along the entire length of the respective side face 33 , 34 and which perform the same function as the recesses 35 , 36 made in the side faces of the support and distribution element 31 .
  • FIG. 46 furthermore schematically illustrates the fixing of the support and distribution element 44 to a heat exchanger or to a combustion chamber. Fixing occurs by coupling one of the protrusions 45 , 46 with a corresponding recess 48 made in a respective wall 47 of the heat exchanger or of the combustion chamber.
  • FIG. 47 illustrates the fixing of a support and distribution element 31 to a heat exchanger or to a combustion chamber.
  • fixing occurs by means of coupling of one of the recesses 35 , 36 with a corresponding protrusion 49 made in a corresponding wall 47 of the heat exchanger or of the combustion chamber.
  • fixing of the support and distribution element 37 , 42 to a heat exchanger or to a combustion chamber occurs by coupling of the recesses 41 or protrusions 43 with corresponding protrusions or recesses made on the walls of the heat exchanger or of the combustion chamber.
US11/629,996 2004-10-22 2005-10-10 Burner with Diffuser Resistant to High Operating Temperatures Abandoned US20070298361A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT000277A ITMO20040277A1 (it) 2004-10-22 2004-10-22 Bruciatore con diffusore resistente ad alte temperature di esercizio.
ITMO2004A000277 2004-10-22
PCT/EP2005/010897 WO2006045426A2 (en) 2004-10-22 2005-10-10 Burner with diffuser resistant to high operating temperatures

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US20070298361A1 true US20070298361A1 (en) 2007-12-27

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US11/629,996 Abandoned US20070298361A1 (en) 2004-10-22 2005-10-10 Burner with Diffuser Resistant to High Operating Temperatures

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US (1) US20070298361A1 (it)
EP (1) EP1802916B1 (it)
AT (1) ATE543047T1 (it)
IT (1) ITMO20040277A1 (it)
RU (1) RU2006145638A (it)
WO (1) WO2006045426A2 (it)

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US20080236564A1 (en) * 2007-03-28 2008-10-02 Constantin Burtea Wire mesh burner plate for a gas oven burner
US20110104622A1 (en) * 2009-10-30 2011-05-05 Trane International Inc. Gas-Fired Furnace With Cavity Burners
US8637792B2 (en) 2011-05-18 2014-01-28 Prince Castle, LLC Conveyor oven with adjustable air vents
US20170314779A1 (en) * 2014-11-13 2017-11-02 A. O. Smith Corporation Gas premix burner and gas water heater
USD802364S1 (en) * 2016-02-11 2017-11-14 Araik Khachatrian Rotating broiling rack
US20180340494A1 (en) * 2017-05-25 2018-11-29 The Government Of The United States Of America, As Represented By The Secretary Of The Navy Multi-mode Thermoacoustic Actuator
US11326808B2 (en) * 2017-07-13 2022-05-10 Bekaert Combustion Technology B.V. Premix gas burner

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ITMI20131465A1 (it) * 2013-09-06 2015-03-07 Worgas Bruciatori Srl Bruciatore e metodo per la fabbricazione di un bruciatore

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US3136354A (en) * 1962-04-04 1964-06-09 Carl E Fitzgerald Radiant gas burners
US3556707A (en) * 1969-06-05 1971-01-19 Luxaire Inc Gas-fired radiant heater
US4976609A (en) * 1988-12-08 1990-12-11 The Frymaster Corporation Flashback resistant infrared gas burner apparatus
US5471956A (en) * 1993-06-29 1995-12-05 Miura Co., Ltd. Heat-insulating structure for combustion equipment
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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080236564A1 (en) * 2007-03-28 2008-10-02 Constantin Burtea Wire mesh burner plate for a gas oven burner
US7717704B2 (en) * 2007-03-28 2010-05-18 Prince Castle, Inc. Wire mesh burner plate for a gas oven burner
US20100190123A1 (en) * 2007-03-28 2010-07-29 Prince Castle, Inc. Burner Plate Assembly for a Gas Oven
US7887321B2 (en) * 2007-03-28 2011-02-15 Prince Castle LLC Burner plate assembly for a gas oven
US20110104622A1 (en) * 2009-10-30 2011-05-05 Trane International Inc. Gas-Fired Furnace With Cavity Burners
US8591222B2 (en) 2009-10-30 2013-11-26 Trane International, Inc. Gas-fired furnace with cavity burners
US8637792B2 (en) 2011-05-18 2014-01-28 Prince Castle, LLC Conveyor oven with adjustable air vents
US20170314779A1 (en) * 2014-11-13 2017-11-02 A. O. Smith Corporation Gas premix burner and gas water heater
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WO2006045426A2 (en) 2006-05-04
ITMO20040277A1 (it) 2005-01-22
EP1802916B1 (en) 2012-01-25
WO2006045426A3 (en) 2006-07-06
RU2006145638A (ru) 2008-06-27
EP1802916A2 (en) 2007-07-04
ATE543047T1 (de) 2012-02-15

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