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EP1531304A2 - Brûleur à trois couronnes pour tables de cuisson - Google Patents

Brûleur à trois couronnes pour tables de cuisson Download PDF

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Publication number
EP1531304A2
EP1531304A2 EP04380216A EP04380216A EP1531304A2 EP 1531304 A2 EP1531304 A2 EP 1531304A2 EP 04380216 A EP04380216 A EP 04380216A EP 04380216 A EP04380216 A EP 04380216A EP 1531304 A2 EP1531304 A2 EP 1531304A2
Authority
EP
European Patent Office
Prior art keywords
central
radial
mixture
chamber
flow
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.)
Granted
Application number
EP04380216A
Other languages
German (de)
English (en)
Other versions
EP1531304B1 (fr
EP1531304A3 (fr
Inventor
Inaki Ayastuy Aretxaga
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.)
Coprecitec SL
Original Assignee
Coprecitec SL
Fagor Electrodomesticos SCL
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 Coprecitec SL, Fagor Electrodomesticos SCL filed Critical Coprecitec SL
Publication of EP1531304A2 publication Critical patent/EP1531304A2/fr
Publication of EP1531304A3 publication Critical patent/EP1531304A3/fr
Application granted granted Critical
Publication of EP1531304B1 publication Critical patent/EP1531304B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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 relates to a gas burner construction for a cooking hob, provided with three flame crowns and the outlets arranged radially in the burner body.
  • Gas burners for cooking hobs provided with two flame crowns arranged peripherally in the body of the burner, on either side of an annular chamber for the distribution of the gas-air mixture, and with a third central flame crown disposed around a circular central chamber, are already known.
  • the gas-primary air fuel mixture is produced in a bowl-shaped base provided with the gas injector, which is fixed below the cooking hob tray.
  • the burner body is mounted above the hob for the intake of the primary air from the separating space between the hob tray and the burner body.
  • the problem to be resolved in a burner of this three flame-crown type, incorporating a central gas-air mixture distribution chamber, is supplying to the central flame crown from a common delivery flow diffused upstream from the central tubular duct and that the portion of branched flow towards the central chamber arrives with a homogeneous gas-air mixture, in order to achieve an efficient combustion at the central crown as well.
  • the known solutions to the problem posed of supplying the central crown include either branching a portion of the common mixture flow directly from the central tubular duct output, or branching thereof from the radial diffusion ducts.
  • EP-1025392-A discloses a gas burner of this type, wherein the delivery of gas-air mixture corresponding to the central chamber, is supplied by way of access openings in the bottom of the central chamber, situated directly above the vertical central duct.
  • This solution requires the construction of a concave wall on this chamber bottom separated from the tubular duct, with the drawback that a therefore combustion is deficient because the mixture does not have a long enough diffusion running to become homogeneous.
  • WO-03/036168-A the supply of the gas-air mixture to the central distribution chamber is resolved by means of a branching opening on each of said horizontal radial diffusion ducts as they pass below the outline of the central chamber.
  • the gas-air mixture flow supplying the central chamber has however run along a horizontal diffusion path, which is not long enough to turn the gas-air flow at the flame holes into an homogeneous mixture.
  • the object of the invention is a gas burner for a cooking hob of the type with a circular burner body with three flame crowns of radial outlets, of which two are peripheral crowns around a peripheral annular distribution chamber and the third a central crown around a central chamber, the gas-air mixture being led to both distribution chambers from a vertical mixture intake duct and diffused upstream by way of various horizontal "venturi" ducts, which are extended in a radial direction below the distribution chambers, wherein said radial diffusion ducts are provided with branch channels for supplying the central chamber with a homogenized portion of the mixture flow.
  • the gas burner according to the present invention is provided with means to divide the mixture flow upstream from said horizontal radial ducts into two portions of flow discharging into the respective peripheral or central annular chamber, the flow portion ducted to the central chamber being composed of a homogenized mixture of gas and air.
  • the invention provides a channel for branching a portion of the mixture flow for the particular supply of the central chamber, said channel being of a long diffusis completed.
  • the branch channel is constructed on each of the common mixture flow radial ducts and has a ducting section sized proportionally to the power of the central crown.
  • gas burner 1 comprises the following burner parts:
  • the mixer bowl-base 10 takes in the primary air A1 from an opening above the cooking tray 14.
  • the circular venturi body 9 is connected by its periphery to the burner body, whereby the walls of the latter close above the radial diffusion ducts 9b.
  • the surface of the burner body 2 has various secondary air intake openings between both peripheral crowns 3,4.
  • the whole flow of mixture M is led by way of the radial ducts 9b to the outer edge of the periphery of the burner, wherein it is divided into a larger flow portion Fp supplying the peripheral chamber 6 and a smaller flow portion Fc ducted to the central chamber 7.
  • the means for the branching 13 of the flow M is constructed using an intermediate plate 13, which is made of a single circular contoured piece provided with a convex central portion 13b with no openings and a number of radial arms 13a.
  • the intermediate plate 13 covers the outlet of the vertical tubular duct 9a preventing direct flowing of the mixture M to the central chamber 7.
  • the arms 13a of the intermediate plate 13 are interposed on the radial ducts 9b, dividing them in the direction of height "H", except at its peripheral end, wherein it forms an opening 16 below the peripheral chamber 6. These peripheral openings 16 supply the larger flow portion Fp, around 90% of the overall flow M.
  • the arms of the intermediate plate 13 form said branch channels 13a above the radial ducts 9b, and up against the surface of the burner body ducting the smaller flow portion Fc, around 10%, in a return direction towards the centre of the burner.
  • the smaller branched flow Fc reaches the central chamber via an opening 17 in its bottom. In this way, the smaller flow Fc travels a long diffusion path "L" (FIG. 2) before supplying the central chamber 7, so as to achieve the complete homogenization of the gas-air mixture M, said circulation run "L" being longer than the radius R of the area of the central chamber 7.
  • the present invention also covers a different construction (not shown in the drawings) of the above described central chamber 7 supply channel 13a, wherein the intermediate plate between the burner body 2 and the venturi body 9 is replaced by a flow Fc branch channel formed along the duct 9b of length "L", but of smaller width than "W”, by means of two parallel or divergent vertical walls projecting from the bottom of the radial duct 9b, which divide it into two ducts adjacent to one another in a horizontal direction and equal in height to that of the radial duct 9b.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
EP04380216A 2003-11-11 2004-11-03 Brûleur à trois couronnes pour plaques de cuisson Expired - Lifetime EP1531304B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200302586U ES1056041Y (es) 2003-11-11 2003-11-11 Quemador de gas de triple corona para placas de coccion.
ES200302586U 2003-11-11

Publications (3)

Publication Number Publication Date
EP1531304A2 true EP1531304A2 (fr) 2005-05-18
EP1531304A3 EP1531304A3 (fr) 2009-07-29
EP1531304B1 EP1531304B1 (fr) 2011-08-03

Family

ID=31897197

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04380216A Expired - Lifetime EP1531304B1 (fr) 2003-11-11 2004-11-03 Brûleur à trois couronnes pour plaques de cuisson

Country Status (3)

Country Link
EP (1) EP1531304B1 (fr)
AT (1) ATE519074T1 (fr)
ES (2) ES1056041Y (fr)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007007298A3 (fr) * 2005-07-14 2007-03-29 Enkay Bek Metal Enjeksiyon San Bruleur a gaz
WO2008104845A3 (fr) * 2007-02-26 2009-04-09 Indesit Co Spa Système de brûleurs à gaz pour appareils de cuisson d'aliments
US7901205B2 (en) * 2005-07-29 2011-03-08 Burner Systems International (Bsi) Gas burner with multiple concentric flame rings
US7967004B2 (en) * 2006-03-23 2011-06-28 Steel Time S.P.A. Modular burner for a cooking plate
CN102466228A (zh) * 2010-10-28 2012-05-23 林内株式会社 燃气燃烧器
EP2211095A3 (fr) * 2009-01-23 2013-02-20 BSH Bosch und Siemens Hausgeräte GmbH Brûleur à gaz
WO2012077050A3 (fr) * 2010-12-07 2013-11-21 Ser Dayanikli Tuketim Mallari Ic Ve Dis Ticaret Sanayi Limited Sirketi Brûleur à gaz
US8662069B2 (en) 2005-09-30 2014-03-04 Indesit Company S.P.A. Cooking top with gas burner comprising a semi-permeable element
US8683991B2 (en) 2007-02-27 2014-04-01 Indesit Company, S.P.A. Cooking top
US9285115B2 (en) 2007-02-27 2016-03-15 Indesit Company S.P.A. Cooking top
CN105987383A (zh) * 2015-02-04 2016-10-05 浙江布鲁尼电器科技有限公司 一种燃气灶用燃烧器结构
AU2012203266B2 (en) * 2012-02-16 2017-08-03 Jinhong Liang Burner for gas ovens
CN110207161A (zh) * 2019-04-28 2019-09-06 绍兴市乐格电器有限公司 一种拼装式燃烧器
CN111189047A (zh) * 2020-01-03 2020-05-22 宁波方太厨具有限公司 一种灶具用燃烧器及应用有该燃烧器的燃气灶具
EP3748230A1 (fr) * 2019-06-03 2020-12-09 Electrolux Appliances Aktiebolag Pièce de base pour un ensemble de brûleur à gaz
CN114321917A (zh) * 2022-01-26 2022-04-12 佛山市顺德区美的洗涤电器制造有限公司 燃烧器以及燃气灶
EP4560193A1 (fr) * 2023-11-24 2025-05-28 LG Electronics Inc. Brûleur

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103256598B (zh) * 2013-06-06 2015-08-05 山西亚乐士环保技术股份有限公司 沼气自动分级燃烧器
US11940148B2 (en) 2021-10-28 2024-03-26 Electrolux Appliances Aktiebolag Multi injection dual ring gas burner for domestic gas cooking units

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SI0797048T1 (en) * 1996-03-19 1999-12-31 Sabaf S.P.A. Gas burner for kitchen appliances
EP1025392B1 (fr) * 1997-08-28 2003-09-10 Aktiebolaget Electrolux Bruleur a gaz pour zone de cuisson

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007007298A3 (fr) * 2005-07-14 2007-03-29 Enkay Bek Metal Enjeksiyon San Bruleur a gaz
US7901205B2 (en) * 2005-07-29 2011-03-08 Burner Systems International (Bsi) Gas burner with multiple concentric flame rings
US8662069B2 (en) 2005-09-30 2014-03-04 Indesit Company S.P.A. Cooking top with gas burner comprising a semi-permeable element
US7967004B2 (en) * 2006-03-23 2011-06-28 Steel Time S.P.A. Modular burner for a cooking plate
US8746229B2 (en) 2007-02-26 2014-06-10 Indesit Company S.P.A. Gas burner system for food cooking appliances
WO2008104845A3 (fr) * 2007-02-26 2009-04-09 Indesit Co Spa Système de brûleurs à gaz pour appareils de cuisson d'aliments
EP2947386A3 (fr) * 2007-02-26 2015-12-02 Indesit Company S.p.A. Système de brûleurs à gaz pour appareils de cuisson d'aliments et brûleur à gaz associé
RU2498157C2 (ru) * 2007-02-26 2013-11-10 Индезит Компани С.П.А. Система горелок бытовой газовой плиты
US9285115B2 (en) 2007-02-27 2016-03-15 Indesit Company S.P.A. Cooking top
US8683991B2 (en) 2007-02-27 2014-04-01 Indesit Company, S.P.A. Cooking top
CN101799161B (zh) * 2009-01-23 2015-03-25 Bsh博施及西门子家用器具有限公司 燃气燃烧器
US8689779B2 (en) 2009-01-23 2014-04-08 Bsh Bosch Und Siemens Hausgeraete Gmbh Gas burner
EP2211095A3 (fr) * 2009-01-23 2013-02-20 BSH Bosch und Siemens Hausgeräte GmbH Brûleur à gaz
CN102466228B (zh) * 2010-10-28 2015-06-10 林内株式会社 燃气燃烧器
CN102466228A (zh) * 2010-10-28 2012-05-23 林内株式会社 燃气燃烧器
WO2012077050A3 (fr) * 2010-12-07 2013-11-21 Ser Dayanikli Tuketim Mallari Ic Ve Dis Ticaret Sanayi Limited Sirketi Brûleur à gaz
AU2012203266A8 (en) * 2012-02-16 2017-09-14 Jinhong Liang Burner for gas ovens
AU2012203266B2 (en) * 2012-02-16 2017-08-03 Jinhong Liang Burner for gas ovens
AU2012203266B8 (en) * 2012-02-16 2017-09-14 Jinhong Liang Burner for gas ovens
EP2629010A3 (fr) * 2012-02-16 2018-01-10 Jinhong Liang Brûleur pour fours à gaz
CN105987383A (zh) * 2015-02-04 2016-10-05 浙江布鲁尼电器科技有限公司 一种燃气灶用燃烧器结构
CN110207161A (zh) * 2019-04-28 2019-09-06 绍兴市乐格电器有限公司 一种拼装式燃烧器
EP3748230A1 (fr) * 2019-06-03 2020-12-09 Electrolux Appliances Aktiebolag Pièce de base pour un ensemble de brûleur à gaz
CN111189047A (zh) * 2020-01-03 2020-05-22 宁波方太厨具有限公司 一种灶具用燃烧器及应用有该燃烧器的燃气灶具
CN111189047B (zh) * 2020-01-03 2022-03-18 宁波方太厨具有限公司 一种灶具用燃烧器及应用有该燃烧器的燃气灶具
CN114321917A (zh) * 2022-01-26 2022-04-12 佛山市顺德区美的洗涤电器制造有限公司 燃烧器以及燃气灶
EP4560193A1 (fr) * 2023-11-24 2025-05-28 LG Electronics Inc. Brûleur

Also Published As

Publication number Publication date
ES2370637T3 (es) 2011-12-21
ES1056041Y (es) 2004-06-01
EP1531304B1 (fr) 2011-08-03
ATE519074T1 (de) 2011-08-15
EP1531304A3 (fr) 2009-07-29
ES1056041U (es) 2004-02-16

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