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WO2013068775A1 - Brûleur à gaz - Google Patents

Brûleur à gaz Download PDF

Info

Publication number
WO2013068775A1
WO2013068775A1 PCT/IB2011/002629 IB2011002629W WO2013068775A1 WO 2013068775 A1 WO2013068775 A1 WO 2013068775A1 IB 2011002629 W IB2011002629 W IB 2011002629W WO 2013068775 A1 WO2013068775 A1 WO 2013068775A1
Authority
WO
WIPO (PCT)
Prior art keywords
duct
diffusion chamber
burner according
latten
flame
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.)
Ceased
Application number
PCT/IB2011/002629
Other languages
English (en)
Inventor
Angelo Bettinzoli
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sabaf SpA
Original Assignee
Sabaf SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sabaf SpA filed Critical Sabaf SpA
Priority to EP11801817.5A priority Critical patent/EP2776760B1/fr
Priority to CN201180074652.4A priority patent/CN103906973B/zh
Priority to ES11801817.5T priority patent/ES2568523T3/es
Priority to PCT/IB2011/002629 priority patent/WO2013068775A1/fr
Priority to PL11801817T priority patent/PL2776760T3/pl
Priority to SI201130768A priority patent/SI2776760T1/sl
Priority to AU2013205427A priority patent/AU2013205427B2/en
Publication of WO2013068775A1 publication Critical patent/WO2013068775A1/fr
Priority to IN3157CHN2014 priority patent/IN2014CN03157A/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F23D14/06—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with radial outlets at the burner head
    • F23D14/065—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with radial outlets at the burner head with injector axis inclined to the burner head axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2207/00—Ignition devices associated with burner
    • 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
    • F23D2900/14—Special features of gas burners
    • F23D2900/14062—Special features of gas burners for cooking ranges having multiple flame rings

Definitions

  • the present invention concerns a gas burner of the type comprising at least two flame spreaders.
  • the present invention pertains to a gas burner comprising, in addition to the afore said at least two flame spreaders, also a chamber obtained between said two flame spreaders for the diffusion of an air/ gas mixture for one or both the flame spreaders.
  • a gas burner type the use of an interignition duct is known, to allow the flame passage from one to the other of the two flame spreaders and then to avoid the use of more spark plugs for sparking the flame ignition at the two flame spreaders.
  • SCich a duct is disposed transversally inside said first diffusion chamber, passing through it completely, so that to define a first and a second region inside the diffusion chamber.
  • the Application WO2209/ 053125 in the name of Elettrolux Home products corporation N.V. describes just a burner of the afore described type, comprising an interignition duct integral with the diffusion chamber and able to assure the almost concurrent ignition of both the flame spreaders present in the burner.
  • a further object of the present invention is to realize a burner being also structurally simple and not requiring particular assembling procedures and modifications in existing burners.
  • the gas burner of the type comprising at least two flame spreaders, at least one diffusion chamber obtained between said at least two flame spreaders for the diffusion of an air/ gas mixture for at least one of said at least two flame spreaders, and at least one interignition duct for the flame passage between said at least two flame spreaders, said at least one duct being disposed transversally inside said at least one diffusion chamber so that to define a first and a second region in said at least one diffusion chamber, characterized by comprising at least one element for the direct fluidic connection between said first and said second region of said at least one diffusion chamber, said at least one connecting element being connected on top with said at least one interignition duct.
  • Such a burner arrangement allows to obtain a direct fluidic connection between said two distinct regions of said combustion chamber so that to solve the problem of rendering the diffusion of the air/ gas mixture more uniform inside the diffusion chamber.
  • said at least one connecting element comprises at least a latten connected over said interignition duct so that to define a section for the direct passage of the air/ gas mixture between said first and said second region of said diffusion chamber.
  • a latten made preferably of steel or aluminum, is advantageously obtained by shearing and bending. The use of such a latten allows to solve the above mentioned technical problem in a simple and economic way and without requiring excessive efforts for assembling such a burner component.
  • said at least one duct comprises two walls separated one from another and transversally extended inside said at least one diffusion chamber, said at least two walls having a height lower than the height of the upper perimetric ends of said at least one diffusion chamber and, preferably, being realized integrally with said at least one diffusion chamber.
  • said at least one latten comprises a central portion, able to be connected on top with said two walls of said at least one duct to cover on top said at least one duct, and two first side portions bent with respect to said central portion and able to be both connected per shape to the side surface of the respective wall of said duct.
  • said at least one latten comprises as well at least two second side portions, respectively, bent with respect to said central portion and able to be coupled per shape to at least part of the respective upper perimetric ends of said at least one diffusion chamber.
  • both of said at least two first side portions comprise an end bent to constrain said at least one latten to said at least one diffusion chamber.
  • said at least one latten and said two walls of said duct comprise one or more openings and/or grooves for the fluidic communication between said at least one diffusion chamber and said interignition duct.
  • the burner further comprises means for centering said at least one latten with said at least one duct.
  • Said centering means comprise at least one hole obtained in said latten and at least one pin connected with said at least one duct, or vice versa.
  • said two flame spreaders are circular, said at least one diffusion chamber has a ring shape and said at least one duct is disposed radially with respect to said at least one diffusion chamber.
  • said upper perimetric ends of said at least one chamber comprise at least one of said at least two flame spreaders and said at least one chamber and said at least two flame spreaders are realized as a whole.
  • figure 1 is a perspective view of a gas burner according to the invention but free of said at least one connecting element;
  • figure 2 is a perspective view of the gas burner of figure 1 provided with at least one connecting element;
  • figure 3 is a perspective view of the gas burner of figure 2 provided with an upper lid;
  • figure 4 is a longitudinally section view of the gas burner of figure 3;
  • figure 5 is a detailed view of the gas burner of figure 4;
  • figure 6a is a perspective view of a connecting element according to the invention.
  • figure 6b is a further perspective view of a connecting element of figure 6a.
  • such a gas burner 1 comprises two flame spreaders 2, 3 and a chamber 4 obtained between said two flame spreaders 2, 3 for the diffusion of an air/ gas mixture for said two flame spreaders 2, 3. Further said gas burner 1 comprises an interignition duct 5 for the flame passage between said two flame spreaders 2 and 3. Particularly, in the case herein, the flame is firstly ignited by the spark plug at the inner flame spreader 3 and, subsequently, such a flame is transferred by said interignition duct 5 to the outer flame spreader 2 for the flame ignition at the latter.
  • Such an interignition duct 5 is disposed transversally inside said first diffusion chamber 4 so that to define a first 6 and a second 7 region inside said diffusion chamber 4.
  • said two flame spreaders 2, 3 are circular, said diffusion chamber 4 has a substantially ring shape and said interignition duct 5 is disposed radially with respect to said diffusion chamber 4.
  • the upper perimetric ends 11 , 12 of said diffusion chamber 4 comprise said two flame spreaders 2, 3.
  • said diffusion chamber 4 and said two flame spreaders 2 and 3 are realized as a whole, thereby defining a substantially toroidal body having a U shape.
  • the gas burner 1 further comprises an upper lid 25 able to be connected to said two flame spreaders 2, 3. Based on such an arrangement, the two regions 6 and 7 of said diffusion chamber 4 are substantially separated one from another by said interignition duct 5.
  • said gas burner 1 comprises an element 8 for the direct fluidic connection between said first 6 and said second 7 region of said diffusion chamber 4, wherein said connecting element 8 is connected on top with said interignition duct 5.
  • a connecting element 8 defines, with the lower surface 26 of the lid 25, a passage section 70 for the air/ gas mixture present in the diffusion chamber 4 .
  • the air/ gas mixture is then able to pass between said first and second regions 6 and 7 of said diffusion chamber 4 with no difficulties, thereby entailing a higher efficiency degree of flame combustion.
  • said connecting element 8 comprises a latten obtainable by shearing and bending and it is made, preferable, of steel, although it could be realized in different metals, such as, for example, aluminum.
  • said interignition duct 5 comprises two walls 9, 10 separated one from another and transversally and radially extended inside said diffusion chamber 4. These two walls 9 and 10, obtained integrally with said diffusion chamber 4, have a height lower than the height of the upper perimetric ends 11 , 12 of said diffusion chamber 4. These upper ends 11 , 12 in the embodiment herein described coincide with said flame spreaders 2 and 3. In other embodiments herein not evident, said upper perimetric ends 11 and 12, or at least one of them, could also not coincide with both or at least one of the two flame spreaders, and they could be used to obtain a further diffusion chamber or carry out support tasks for the upper lid and the like, without for this reason exiting from the protection scope of the present invention.
  • a connecting element 8 comprising a latten 8 according to the invention.
  • a latten 8 comprises a central portion 13, able to be connected on top with said two walls 9, 10 of said duct 5 to cover on top said interignition duct 5, and two first side portions 4, 15 bent with respect to said central portion 13 and able to be both connected per shape laterally to the respective wall 9, 10 of said interignition duct 5.
  • said latten 8 comprises as well at least two second side portions 16, 17, respectively, bent with respect to said central portion 13 and able to be coupled per shape to the upper perimetric ends 11 , 12 of said diffusion chamber 4.
  • said upper ends 11 and 12 coincide with said two flame spreaders 2, 3.
  • said two first side portions 14, 15 both comprise an end 18 bent to constrain said latten to said diffusion chamber 4.
  • said latten 8 and said two walls 9, 10 of said interignition duct 5 comprise, respectively, more openings 19 and grooves 20 for the fluidic communication between the diffusion chamber 4 and said interignition duct 5.
  • said gas burner 1 comprises means 21 for centering said latten 8 with said interignition duct 5.
  • Said centering means 21 comprise a hole 22 obtained in said latten 8 and a pin 23 connected with said at least one duct or, according to an embodiment herein not shown, vice versa.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)

Abstract

La présente invention a trait à un brûleur à gaz (1) du type comprenant au moins deux diffuseurs de flamme (2, 3), au moins une chambre de diffusion qui est prévue entre lesdits deux diffuseurs de flamme ou plus en vue de la diffusion d'un mélange air/gaz à destination d'au moins un desdits deux diffuseurs de flamme ou plus, et au moins une conduite d'allumage commun pour le passage de flamme entre lesdits deux diffuseurs de flamme ou plus, ladite ou lesdites conduites étant disposées de façon transversale à l'intérieur de ladite ou desdites chambres de diffusion de sorte à définir une première et une seconde région dans ladite ou lesdites chambres de diffusion. L'invention est caractérisée en ce qu'au moins un élément est destiné à la connexion fluidique directe entre ladite première et ladite seconde région de ladite ou desdites chambres de diffusion, ledit ou lesdits éléments de connexion étant connectés sur la partie supérieure avec ladite ou lesdites conduites d'allumage commun.
PCT/IB2011/002629 2011-11-08 2011-11-08 Brûleur à gaz Ceased WO2013068775A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP11801817.5A EP2776760B1 (fr) 2011-11-08 2011-11-08 Brûleur à gaz
CN201180074652.4A CN103906973B (zh) 2011-11-08 2011-11-08 燃气燃烧器
ES11801817.5T ES2568523T3 (es) 2011-11-08 2011-11-08 Quemador de gas
PCT/IB2011/002629 WO2013068775A1 (fr) 2011-11-08 2011-11-08 Brûleur à gaz
PL11801817T PL2776760T3 (pl) 2011-11-08 2011-11-08 Palnik gazowy
SI201130768A SI2776760T1 (sl) 2011-11-08 2011-11-08 Plinski gorilnik
AU2013205427A AU2013205427B2 (en) 2011-11-08 2013-04-11 Gas burner
IN3157CHN2014 IN2014CN03157A (fr) 2011-11-08 2014-04-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2011/002629 WO2013068775A1 (fr) 2011-11-08 2011-11-08 Brûleur à gaz

Related Child Applications (1)

Application Number Title Priority Date Filing Date
AU2013205427A Division AU2013205427B2 (en) 2011-11-08 2013-04-11 Gas burner

Publications (1)

Publication Number Publication Date
WO2013068775A1 true WO2013068775A1 (fr) 2013-05-16

Family

ID=45406785

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2011/002629 Ceased WO2013068775A1 (fr) 2011-11-08 2011-11-08 Brûleur à gaz

Country Status (8)

Country Link
EP (1) EP2776760B1 (fr)
CN (1) CN103906973B (fr)
AU (1) AU2013205427B2 (fr)
ES (1) ES2568523T3 (fr)
IN (1) IN2014CN03157A (fr)
PL (1) PL2776760T3 (fr)
SI (1) SI2776760T1 (fr)
WO (1) WO2013068775A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014064481A1 (fr) * 2012-10-26 2014-05-01 Sabaf S.P.A. Brûleur à gaz
US20160178212A1 (en) * 2014-12-17 2016-06-23 Lg Electronics Inc. Burner to evenly distribute flame

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009053125A1 (fr) * 2007-10-23 2009-04-30 Electrolux Home Products Corporation N.V. Brûleur à gaz perfectionné
US20100092902A1 (en) * 2007-03-23 2010-04-15 Carlo Paesani Gas burner for cooking appliances
US20110143295A1 (en) * 2009-12-14 2011-06-16 Electrolux Home Products, Inc. Burner designed for wide range of input rates

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MY147803A (en) * 2004-10-28 2013-01-31 Electrolux Ab Improved cooking gas burner assembly
ITMI20050837A1 (it) * 2005-05-11 2006-11-12 Enzo Inzaghi Piano di cottura con distribuzione delle fiamme ottimizzata
DE102006053426A1 (de) * 2006-11-13 2008-05-15 BSH Bosch und Siemens Hausgeräte GmbH Brennerring

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100092902A1 (en) * 2007-03-23 2010-04-15 Carlo Paesani Gas burner for cooking appliances
WO2009053125A1 (fr) * 2007-10-23 2009-04-30 Electrolux Home Products Corporation N.V. Brûleur à gaz perfectionné
US20110143295A1 (en) * 2009-12-14 2011-06-16 Electrolux Home Products, Inc. Burner designed for wide range of input rates

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014064481A1 (fr) * 2012-10-26 2014-05-01 Sabaf S.P.A. Brûleur à gaz
US9222677B2 (en) 2012-10-26 2015-12-29 SABAF S.p. A. Gas burner
US20160178212A1 (en) * 2014-12-17 2016-06-23 Lg Electronics Inc. Burner to evenly distribute flame
US10330311B2 (en) * 2014-12-17 2019-06-25 Lg Electronics Inc. Burner to evenly distribute flame

Also Published As

Publication number Publication date
CN103906973A (zh) 2014-07-02
AU2013205427A1 (en) 2013-05-23
ES2568523T3 (es) 2016-04-29
CN103906973B (zh) 2016-07-27
EP2776760B1 (fr) 2016-01-06
PL2776760T3 (pl) 2016-06-30
AU2013205427B2 (en) 2015-08-27
EP2776760A1 (fr) 2014-09-17
SI2776760T1 (sl) 2016-05-31
IN2014CN03157A (fr) 2015-07-03

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