EP1531304B1 - Gasbrenner mit drei Kronen für Küchenkochfeld - Google Patents

Gasbrenner mit drei Kronen für Küchenkochfeld Download PDF

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Publication number
EP1531304B1
EP1531304B1 EP04380216A EP04380216A EP1531304B1 EP 1531304 B1 EP1531304 B1 EP 1531304B1 EP 04380216 A EP04380216 A EP 04380216A EP 04380216 A EP04380216 A EP 04380216A EP 1531304 B1 EP1531304 B1 EP 1531304B1
Authority
EP
European Patent Office
Prior art keywords
central
radial
chamber
mixture
burner
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP04380216A
Other languages
English (en)
French (fr)
Other versions
EP1531304A3 (de
EP1531304A2 (de
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
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Filing date
Publication date
Application filed by Coprecitec SL filed Critical Coprecitec SL
Publication of EP1531304A2 publication Critical patent/EP1531304A2/de
Publication of EP1531304A3 publication Critical patent/EP1531304A3/de
Application granted granted Critical
Publication of EP1531304B1 publication Critical patent/EP1531304B1/de
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 downstream 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 downstream 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 downstream 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.
  • 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 circulation path of lenght "L" ( FIG. 2 ) before supplying the central chamber 7, so as to achieve the complete homogenization of the gas-air mixture M, said circulation path 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)

Claims (3)

  1. Gasbrenner für einen Kochherd, von einem Typ umfassend einen runden Brennerkörper (2) mit mindestens einer peripherischen Flammenkrone (3,4) und einer mittleren Flammenkrone (5), einer peripheren Ringkammer (6) zum Verteilen der Gas-Luft-Mischung (M) an der mindestens einer peripheren Krone (3,4), und einer kreisförmigen mittigen Kammer (7) zum Verteilen an der mittleren Krone (5), ein Venturikörper (9) mit kreisförmigem Umriss, verbunden mit dem Körper (2) der Flammenkronen (3-5) unter ihrem Umriss, und versehen mit einer mittigen vertikalen Empfängerleitung (9a) für den Fluss der Mischung (M) und einer Reihe horizontalen Venturileitungen (9b), die sich radial erstrecken, um einen gemeinsamen Mischungsfluss (M) zur beiden Verteilerkammern (6,7) zu verbreiten, und Mittel (13,13a,16,17) zur Verzweigung und Leitung eines kleineren Anteils (Fc) des Mischungsflusses zur individuellen Versorgung der mittigen Kammer (7), dadurch gekennzeichnet, dass die Mittel (13, 13a,16, 17) zum Verzweigen und Leiten des Teilflusses (Fc) einen radialen Kanal (13a) umfasst, der unter den Flächen des Körpers (2) der Kronen (3,4,5) gebildet ist und stromabwärts von dieser mittleren Venturileitung (9a) beginnt, wobei seine Länge (L) größer ist als der Radius (R) der Fläche der mittigen Kammer (7), wobei der Zirkulationsweg des Teilflusses (Fc) verlängert wird, um seine vollständige Homogeneisierung in der Rückflussrichtung in die Mitte des Brenners zu erreichen.
  2. Gasbrenner für einen Kochherd gemäß Anspruch 1, wobei dieser radiale Verzweigungskanal (13a) am peripheren Ende (16) der einzelnen radialen Venturileitungen (9b) beginnt sich in radialer Richtung stromabwärts bis zu einer Öffnung (17) unten in der mittigen Kammer (7) hin erstreckt.
  3. Gasbrenner für einen Kochherd gemäß Anspruch 1, wobei dieser radiale Verzweigungskanal (13a) für die konkrete Versorgung der mittigen Kammer (7) aus einer kreisförmig Zwischenplatte (13) gebildet ist, die einen konvexen zentralen Abschnitt (13b) umfasst, welcher die zentrale vertikale Leitung (9a) abdeckt, sowie eine Reihe radiale Verzweigungen zwischen den zentralen radialen Leitungen (9b) des Venturikörpers (9) und mit der gleichen Breite (W) wie diese, so dass der Teilfluss (Fc) über eine Öffnung (17) unten in die mittige Kammer (7) geleitet wird.
EP04380216A 2003-11-11 2004-11-03 Gasbrenner mit drei Kronen für Küchenkochfeld Expired - Lifetime EP1531304B1 (de)

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 EP1531304A2 (de) 2005-05-18
EP1531304A3 EP1531304A3 (de) 2009-07-29
EP1531304B1 true EP1531304B1 (de) 2011-08-03

Family

ID=31897197

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04380216A Expired - Lifetime EP1531304B1 (de) 2003-11-11 2004-11-03 Gasbrenner mit drei Kronen für Küchenkochfeld

Country Status (3)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11940148B2 (en) 2021-10-28 2024-03-26 Electrolux Appliances Aktiebolag Multi injection dual ring gas burner for domestic gas cooking units

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TR200801411T1 (tr) * 2005-07-14 2008-08-21 Ser Day.Tüketi̇mmallari İç Ve Diş Ti̇caret Ltd.Şti̇ Bir yakıcı.
FR2889293B1 (fr) * 2005-07-29 2009-12-18 Burner Systems Int Bsi Bruleur a gaz a multiples couronnes de flammes concentriques
ITTO20050685A1 (it) 2005-09-30 2007-04-01 Indesit Co Spa Piano di cottura con bruciatore a gas comprendente un elemento semipermeabile
ITMI20060535A1 (it) * 2006-03-23 2007-09-24 Enzo Inzaghi Bruciatore modulare per piastra di cottura
ITTO20070133A1 (it) * 2007-02-26 2008-08-27 Indesit Co Spa Sistema di bruciatori di gas per apparecchi di cottura per alimenti
ITRN20070012A1 (it) 2007-02-27 2008-08-28 Indesit Company Spa Piano cottura
ITRN20070013A1 (it) 2007-02-27 2008-08-28 Indesit Company Spa Piano cottura.
US8689779B2 (en) * 2009-01-23 2014-04-08 Bsh Bosch Und Siemens Hausgeraete Gmbh Gas burner
JP5089753B2 (ja) * 2010-10-28 2012-12-05 リンナイ株式会社 ガスバーナ
TR201010169A2 (tr) * 2010-12-07 2012-06-21 Ser Dayanikli Tüketi̇m Mallari İç Ve Diş Ti̇caret Sanayi̇ Li̇mi̇ted Şi̇rketi̇ Bir yakıcı
CN202494111U (zh) * 2012-02-16 2012-10-17 梁锦洪 燃气灶用的燃烧器
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
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
ES2981446T3 (es) * 2019-06-03 2024-10-08 Electrolux Appliances AB Conjunto de quemador de gas
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
CN114321917B (zh) * 2022-01-26 2023-04-07 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
KR20250077790A (ko) * 2023-11-24 2025-06-02 엘지전자 주식회사 버너

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0797048B1 (de) * 1996-03-19 1999-09-08 SABAF S.p.A. Gasbrenner für Küchengeräte
EP1025392B1 (de) * 1997-08-28 2003-09-10 Aktiebolaget Electrolux Gasbrenner für kochstellen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11940148B2 (en) 2021-10-28 2024-03-26 Electrolux Appliances Aktiebolag Multi injection dual ring gas burner for domestic gas cooking units

Also Published As

Publication number Publication date
ES1056041U (es) 2004-02-16
EP1531304A3 (de) 2009-07-29
EP1531304A2 (de) 2005-05-18
ES2370637T3 (es) 2011-12-21
ATE519074T1 (de) 2011-08-15
ES1056041Y (es) 2004-06-01

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