EP1781989B1 - Brûleur à gaz à multiples couronnes de flammes - Google Patents

Brûleur à gaz à multiples couronnes de flammes Download PDF

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Publication number
EP1781989B1
EP1781989B1 EP05773155.6A EP05773155A EP1781989B1 EP 1781989 B1 EP1781989 B1 EP 1781989B1 EP 05773155 A EP05773155 A EP 05773155A EP 1781989 B1 EP1781989 B1 EP 1781989B1
Authority
EP
European Patent Office
Prior art keywords
burner
flame divider
flame
divider
injector
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
EP05773155.6A
Other languages
German (de)
English (en)
Other versions
EP1781989A1 (fr
Inventor
Carlo Paesani
Girolamo Tommaso Emiliani
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.)
Defendi Italy SRL
Original Assignee
Defendi Italy SRL
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 Defendi Italy SRL filed Critical Defendi Italy SRL
Priority to PL05773155T priority Critical patent/PL1781989T3/pl
Publication of EP1781989A1 publication Critical patent/EP1781989A1/fr
Application granted granted Critical
Publication of EP1781989B1 publication Critical patent/EP1781989B1/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
    • 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
    • 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 burner with multiple flame rings.
  • burners having several concentric flame rings controlled by a single tap i.e. so-called double or triple ring burners
  • these burners must maintain very small height dimensions to enable them to be used both on cookers and on modern built-in hobs of only 30-40 mm in height.
  • triple ring burners are substantially constructed on the radial venturi concept, as is the case with all other smaller burners, i.e. auxiliary, semi-fast and fast.
  • venturi is formed from a vertical first frusto-conical converging portion and a horizontally extending second radial diverging portion.
  • the horizontally extending radial part essential for burner operation, must necessarily have a certain surface which extends towards the burner interior and of necessity creates projections towards the burner interior which finish by limiting the secondary air within the internal part between the two burner portions, hence the internal burner must be of very small dimensions and with few flames.
  • US-2001/0010897 A1 discloses a gas burner with multiple gas rings comprising a burner body mountable underneath a top plate, with a cut-out section, of an appliance and incorporating a first, upwardly directed gas injector and a second gas injector followed by a horizontal tubular Venturi opening into a vertical well, an outer burner head seated on the body through the cut-out section and spaced at a distance above the plate and provided with an angular chamber open above the well and having one or two rows of orifices for flames; and an inner burner head shaped so as to have a radial divergent coaxially supplied by the first injector through a recess located at the centre of the head.
  • An object of the invention is to avoid the aforesaid drawbacks by providing a burner with multiple flame rings, which is of high performance and power while being of very low cost, and not requiring the use of costly special two-way valves such as dual burners, but merely a simple tap.
  • the burner of the invention comprises substantially an injector holder cup 1, known hereinafter simply as a cup, consisting of a lower shell 2 and an upper shell 3 joined together, and a flame divider 4.
  • Said cup presents a perimetral edge 9 on which the hob 12 of the cooking appliance is fixed by screws 11.
  • a gas inlet 10 is present, connected to the burner control tap by a tube.
  • the inlet 10 continues internally with a conduit 15 on which the horizontally disposed injector 14 is housed: the head of the injector 14 projects into a cavity 27 open only upwards.
  • a horizontal venturi conduit 26 formed from a first converging portion 16, a second more or less constant portion 17, and a third diverging portion 18.
  • the final diverging portion 18 of the venturi 26 leads to a conduit which branches into two sections 33 and 34 terminating in two opposing chambers 28 which extend externally towards the perimetral edge of the cup and internally towards the central region close to the venturi 28
  • Said chambers 28 upperly present an aperture 19 towards the outside, and an aperture 35 towards the inside.
  • the flame divider 4 is preferably formed as a single piece, consisting of a central circular inner portion and a more or less annular outer portion.
  • the outer portion presents an outer edge 30 in which a series of apertures 5 are provided for passage of the air/gas mixture, an inner edge 21 in which a series of apertures 22 are provided, and a base 13.
  • the burner outer portion is closed upperly by a closure element 29 or outer cap.
  • the circular inner portion of the flame divider presents on its lower face an edge 7 which defines a cavity 24 open centrally upwards via a hole 37 leading into a chamber 31 defined circumferentially by an outer edge 25, lowerly by a base 40, and upperly by a closure element 38 or central cap. Apertures 41 for exit of the air/gas mixture are provided in the outer edge 25.
  • the edge 25 of the circular inner portion continues downwards and has associated with it a flange 8, the upper face 20 of which defines, with the outer edge 25 and the edge 21 of the outer portion, an annular cavity 39.
  • connection sectors 32 which between them define apertures 36.
  • the flame divider 4 is supported and centered on the cup 1 by appropriate means 44 and defines an outer annular area which, via the apertures 36, supplies the annular cavity 39 with the secondary air required for creating the flames present on the central circular inner portion of the flame divider 4 and the flames present on the inner edge 21 of the outer portion of the flame divider 4.
  • the flame divider 4 On its lower face the flame divider 4 presents projecting fins 49 which, when the flame divider rests in its seat on the cup 1, close the edge 45 to define an outward aperture 46 for passage of primary air 43.
  • the burner of the invention operates in the following manner:
  • the secondary air 42 required for combustion of the air/gas mixture leaving the slits 41 of the inner portion of the flame divider 4 and the slits 22 of its outer portion is available in the annular cavity 39 which is fed with air through the apertures 36 which connect the outer region to said annular cavity 39.
  • the flame divider 4 rests and is centered on the cup 1 to form a seal on said cup: the result is that if liquids spill from a pan, said liquids tend to emerge outside the hob 12, as the face 20 is inclined slightly downwards.
  • the edge 45 and the fins 49 mean that said spilt liquids do not enter the chamber 27 housing the injector 14.

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

Claims (10)

  1. Brûleur à gaz à multiples couronnes à installer sur un poinçon, dans lequel des flammes sont distribuées sur une partie intérieure sensiblement circulaire et sur une partie extérieure d'un diviseur de flamme (4), la partie intérieure circulaire et la partie extérieure étant séparées par une cavité d'air secondaire annulaire (39), présentant la combinaison suivante:
    - il présente une seule entrée de gaz qui est en communication avec au moins un injecteur (14) disposé horizontalement;
    - un conduit venturi (26) d'extension linéaire disposé horizontalement est associé audit au moins un injecteur (14);
    - l'air primaire requis pour le fonctionnement du brûleur entre par l'extérieur depuis le sommet vers le poinçon;
    - l'air secondaire requis pour le fonctionnement du brûleur entre par l'extérieur depuis le sommet vers le poinçon; et
    - le mélange air/gaz est fourni à la fois à la partie extérieure et à la partie intérieure circulaire du diviseur de flamme (4) par l'intermédiaire du même conduit venturi linéaire (26).
  2. Brûleur selon la revendication 1, caractérisé en ce que la partie extérieure du diviseur de flamme (4) est constituée d'un corps annulaire présentant au moins deux séries de fentes de flamme.
  3. Brûleur selon la revendication 1, dans lequel le mélange air/gaz entre dans la partie extérieure du diviseur de flamme (4) à travers au moins deux ouvertures (6).
  4. Brûleur selon la revendication 1, caractérisé en ce que le diviseur de flamme (4), lorsqu'il repose sur la cuvette (1), définit deux secteurs séparés pour un écoulement d'air primaire vers l'injecteur et pour un écoulement d'air secondaire vers la partie intérieure centrale (39) du diviseur de flamme (4).
  5. Brûleur selon la revendication 1, caractérisé en ce que le mélange air/gaz atteint la partie centrale du diviseur de flamme (4) à travers une ouverture (37) qui est située au centre de la chambre (31) de ladite partie centrale.
  6. Brûleur selon la revendication 1, caractérisé en ce que le conduit venturi linéaire est constitué d'une première partie convergente (16), d'une deuxième partie sensiblement rectiligne (17) et d'une troisième partie divergente (18), toutes se trouvant sur le même axe.
  7. Brûleur selon la revendication 1, caractérisé en ce que le diviseur de flamme (4) est constitué d'une seule pièce.
  8. Brûleur selon la revendication 1, caractérisé en ce que le diviseur de flamme (4) est constitué de deux pièces.
  9. Brûleur selon l'une des revendications précédentes, caractérisé en ce que des fentes de flamme sont également prévues sur les capots de fermeture (29, 38).
  10. Brûleur selon la revendication 1, caractérisé en ce que le conduit venturi s'ouvre dans une chambre ouverte au sommet en communication à la fois avec la partie intérieure circulaire et avec la partie extérieure du diviseur de flamme (4).
EP05773155.6A 2004-07-09 2005-06-24 Brûleur à gaz à multiples couronnes de flammes Expired - Lifetime EP1781989B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05773155T PL1781989T3 (pl) 2004-07-09 2005-06-24 Palnik gazowy z wieloma pierścieniami płomienia

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000031A ITVE20040031A1 (it) 2004-07-09 2004-07-09 Bruciatore a piu' settori di fiamme.
PCT/EP2005/006838 WO2006005428A1 (fr) 2004-07-09 2005-06-24 Bruleur a secteurs flammes multiples

Publications (2)

Publication Number Publication Date
EP1781989A1 EP1781989A1 (fr) 2007-05-09
EP1781989B1 true EP1781989B1 (fr) 2015-12-09

Family

ID=35033727

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05773155.6A Expired - Lifetime EP1781989B1 (fr) 2004-07-09 2005-06-24 Brûleur à gaz à multiples couronnes de flammes

Country Status (9)

Country Link
EP (1) EP1781989B1 (fr)
CN (1) CN1985126B (fr)
BR (1) BRPI0513197B1 (fr)
EG (1) EG25057A (fr)
ES (1) ES2564581T3 (fr)
IT (1) ITVE20040031A1 (fr)
MX (1) MXPA06015017A (fr)
PL (1) PL1781989T3 (fr)
WO (1) WO2006005428A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10317088B2 (en) 2015-07-02 2019-06-11 Mabe, S.A. De C.V. Triple ring flame burner

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20040794A1 (it) * 2004-11-12 2005-02-12 Merloni Elettrodomestici Spa Sistema di bruciatori di gas per la cottura di alimenti di tipo perfezionato
ITMI20060535A1 (it) * 2006-03-23 2007-09-24 Enzo Inzaghi Bruciatore modulare per piastra di cottura
ITVE20070018A1 (it) * 2007-03-23 2008-09-24 Defendi Italy Srl Bruciatore perfezionato a gas per apparecchi di cottura.-
ITMC20070130A1 (it) * 2007-06-28 2008-12-29 Somi Press Soc Metalli Iniettati Spa Doppio bruciatore, di tipo perfezionato, per fornelli a gas a piu' corone di fiamme.
EP2258982B1 (fr) * 2007-10-23 2019-01-16 Electrolux Home Products Corporation N.V. Brûleur à gaz amélioré
ITVE20080070A1 (it) * 2008-09-08 2010-03-09 Defendi Italy Srl Bruciatore a gas per apparecchi di cottura.
JP5393369B2 (ja) * 2008-10-23 2014-01-22 リンナイ株式会社 コンロ用バーナ
US8973569B2 (en) * 2009-02-18 2015-03-10 Electrolux Home Products, Inc. Gas burner
PL2236921T3 (pl) * 2009-03-18 2015-04-30 Electrolux Home Products Corp Nv Ulepszony palnik gazowy
US8899972B2 (en) * 2009-12-14 2014-12-02 Electrolux Home Products, Inc. Burner designed for wide range of input rates
MX345335B (es) * 2009-12-18 2017-01-25 Mabe S A De C V * Quemador de tres sectores de flama.
PT2588808T (pt) * 2010-06-30 2022-03-14 Sabaf Spa Queimador a gás com meios para prevenir a propagação de chama
CN103423745B (zh) * 2013-08-08 2015-11-18 浙江火星人厨具有限公司 燃气燃烧器
US9513012B2 (en) * 2013-12-11 2016-12-06 Whirlpool Corporation Additional primary air access for surface gas burners
CN103742909B (zh) * 2014-01-25 2017-02-08 浙江帅丰电器有限公司 一种具有双引射器的上进风燃烧器
CN104713083B (zh) * 2015-03-12 2017-05-03 广东美的厨房电器制造有限公司 燃烧器及燃气用具
CN104713084B (zh) * 2015-03-12 2017-10-27 广东美的厨房电器制造有限公司 燃烧器及燃气用具
WO2017051364A2 (fr) * 2015-09-24 2017-03-30 Defendi Italy S.R.L. Brûleur à gaz avec de multiples anneaux de flammes pour tables de cuisson
ITUB20153850A1 (it) * 2015-04-24 2017-03-24 Defendi Italy Srl Bruciatore a gas con piu corone di fiamme per piani di cottura.
CN107830520A (zh) * 2017-09-27 2018-03-23 徐州工程学院 一种燃点燃烧器
CN112236619B (zh) * 2018-06-25 2023-10-03 伊莱克斯家用电器股份公司 燃气燃烧器组件和包括至少一个燃气燃烧器组件的燃气烹饪器具
EP3980690B1 (fr) * 2019-07-10 2025-01-01 Femas Metal San. Ve Tic. A.S. Ensemble brûleur à flamme radiale dirigée vers l'extérieur
WO2025257738A1 (fr) 2024-06-11 2025-12-18 E.G.O. Elektro-Gerätebau GmbH Brûleur à gaz pour plaque de cuisson

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999008046A1 (fr) * 1997-08-11 1999-02-18 Officine Meccaniche Defendi S.R.L. Bruleur a gaz comprenant plusieurs zones de flamme
US6742514B1 (en) * 2002-06-07 2004-06-01 Eastman Outdoors Burner assembly, outdoor stove including same, and stove kit

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
FR1102916A (fr) * 1951-07-28 1955-10-27 Fonderie Soc Gen De Perfectionnements aux appareils de cuisine à gaz
DE1092622B (de) * 1957-01-09 1960-11-10 Homann Werke Wilhelm Homann Sicherheitseinrichtung an Gasbrennern fuer Kochgeraete od. dgl.
FR2356078A1 (fr) * 1976-06-23 1978-01-20 Morice Roger Bruleur a gaz a flamme pilote pour appareil de cuisson
GB2223302A (en) * 1988-09-28 1990-04-04 Tiao Ho Yen Gas burner
FR2655711B1 (fr) 1989-12-13 1992-02-07 Applic Electrotech Meca Bruleur a melange aero-combustible gazeux.
GB2322696B (en) * 1997-02-28 1999-01-06 Tri Square Ind Co Ltd Gas burner
FR2804496B1 (fr) 2000-01-28 2002-07-19 Sourdillon Sa Bruleur a gaz a multiples couronnes de flammes
IT1320580B1 (it) * 2000-08-02 2003-12-10 Smeg Spa Bruciatore ultrarapido per piano di cottura o per una cucina a gas.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999008046A1 (fr) * 1997-08-11 1999-02-18 Officine Meccaniche Defendi S.R.L. Bruleur a gaz comprenant plusieurs zones de flamme
US6742514B1 (en) * 2002-06-07 2004-06-01 Eastman Outdoors Burner assembly, outdoor stove including same, and stove kit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10317088B2 (en) 2015-07-02 2019-06-11 Mabe, S.A. De C.V. Triple ring flame burner

Also Published As

Publication number Publication date
EG25057A (en) 2011-07-20
BRPI0513197A (pt) 2008-04-29
ITVE20040031A1 (it) 2004-10-09
EP1781989A1 (fr) 2007-05-09
WO2006005428A1 (fr) 2006-01-19
CN1985126A (zh) 2007-06-20
MXPA06015017A (es) 2007-05-09
PL1781989T3 (pl) 2016-06-30
BRPI0513197B1 (pt) 2017-06-13
ES2564581T3 (es) 2016-03-23
CN1985126B (zh) 2011-02-02

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