EP2572141A2 - Brûleur à gaz aux anneaux de flamme multiples - Google Patents

Brûleur à gaz aux anneaux de flamme multiples

Info

Publication number
EP2572141A2
EP2572141A2 EP11723373A EP11723373A EP2572141A2 EP 2572141 A2 EP2572141 A2 EP 2572141A2 EP 11723373 A EP11723373 A EP 11723373A EP 11723373 A EP11723373 A EP 11723373A EP 2572141 A2 EP2572141 A2 EP 2572141A2
Authority
EP
European Patent Office
Prior art keywords
burner
flame divider
flame
inner portion
upperly
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
EP11723373A
Other languages
German (de)
English (en)
Other versions
EP2572141B1 (fr
Inventor
Carlo Paesani
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 PL11723373T priority Critical patent/PL2572141T3/pl
Publication of EP2572141A2 publication Critical patent/EP2572141A2/fr
Application granted granted Critical
Publication of EP2572141B1 publication Critical patent/EP2572141B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • F23D14/62—Mixing devices; Mixing tubes
    • F23D14/64—Mixing devices; Mixing tubes with injectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/007—Mixing tubes, air supply regulation
    • 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
    • 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
    • F23D2900/14063—Special features of gas burners for cooking ranges having one flame ring fed by multiple venturis

Definitions

  • the present invention relates to a gas burner with multiple flame rings.
  • Single control gas burners with multiple concentric flame rings are known, i.e. burners in which the gas feed is controlled by a single tap.
  • These general ly com prise an injector holder cup, a flame d ivider resting on the injector holder cup and formed from two parts joined together to form an inner central portion and an outer annular portion, an annular cover which closes the annular portion of the flame divider, and a discoidal cover which closes the central portion of the flame divider.
  • One of these known bu rners is descri bed for example in EP-B1 - 0797048.
  • An object of the invention is to provide a gas bu rner of m u ltipl e concentric ring type in which the number of components is reduced.
  • Another object of the invention is to provide a gas burner of multiple concentric ring type which is of limited overall height, such as to be able to be mounted on traditional built-in cooking hobs.
  • Another object of the invention is to provide a gas burner of multiple concentric ring type in wh ich the primary air is d rawn in from above the cooking hob, in order to prevent streaming, i.e. flame disturbance on sudden opening of the oven door or of a furniture item positioned below the cooking hob.
  • Figure 1 is an exploded perspective view of a first embodiment of the burner according to the invention, seen from above,
  • Figure 2 is an exploded perspective view thereof seen from below
  • Figure 3 is a perspective view thereof in its assembled state, mounted on a cooking hob
  • Figure 4 is a perspective view thereof shown in vertical section
  • Figure 5 is a second embodiment thereof shown in the same view as Figure
  • Figure 6 shows a third embodiment thereof with three injectors.
  • the burner of the invention comprises, in the embodiment shown in Figures 1 -4, three basic components consisting of the injector holder 2, the flame divider 4 and the cover 6.
  • the injector holder 2 is of essential ly elongated extension and is shaped to define two cups 8 connected together by two baffles 1 0.
  • the two cups are closed lowerly and laterally and are open at their top, where the lateral wall is provided with an outwardly jutting flange 1 2 for resting against the underside of the sheet metal of a cooking hob 14, to which the burner is fixed by screws.
  • each cup 8 extends upperly beyond the flange 12 to form a rim 1 6 emerg ing from the cooking hob 1 4 and acting as the support element for the flame divider 4.
  • the injector holder 2 also comprises a gas feed conduit 18; it extends horizontally below the base of the two cups 8, it is open at one end for gas entry and communicates with two injectors 20 screwed centrally to the base of the cups.
  • the flame divider 4 rests on the injector holder 2 such that two of its downwardly jutting profiled projections 22 rest on the upper rims 16 of the two cu ps 8. These profi l ed proj ections 22 do not extend along the enti re extension of the corresponding upper rims 1 6, but only along its two lateral portions and along its inner portion , such as to define between the flame divider 4 and the injector holder 2 two apertures for access of the primary air originating from above the cooking hob 14 into the two cups 8.
  • the flame divider 4 is centred about the injector holder 2 by projections 24, which extend downwards from the flame divider 2 and adhere via their outer vertical edge to the inner surface of the lateral wall of the two cups 8.
  • the flame divider 4 comprises an outer portion 26 of overall annular shape and an inner portion 28 of overall circular shape.
  • the outer portion 26 presents an outer rim 30 which extends along a circumference, and an inner rim 32, of which a certain part extends along a circumference concentric with that of the outer rim 30, then it curves inwards to connect to the circular rim 34 of the inner portion 28.
  • two substantially rad ial channels 36 are obtained provid ing flu idic connection between the inner circular portion 28 and the outer annular portion 26 of the flame divider 4.
  • a single continuous rim which comprises along its entire extension, with the exception of the parts relative to the two radial channels 26, a plurality of main ports 38 and secondary ports 40, which on the rim 30 form the outer ring of outwardly directed flames, on the rim 32 form the intermediate ring of inwardly directed flames, and on the rim 34 form the inner ring of outwardly directed flames.
  • the two rims bounding the radial channels 36 also present secondary apertu res 42 , th e pu rpose of wh ich is to tra nsm it the fla mes from th e intermediate ring to the inner ring.
  • two channels 43 are positioned provided with two small ports 44 for inter-ignition between the flames of the outer ring and those of the intermediate ring and inner ring.
  • the flame divider 4 also comprises two vertical conduits 46 which at their lower end face the two injectors 20 and open upperly at projections 48 wh ich lowerly define two venture effect chambers bounded upperly by the cover 6, which rests on the flame divider 4 at four centring pegs 50 provided therein.
  • the flame d ivider 4 When the flame d ivider 4 rests via its profiled projections 22 on the upper rims 16 of the two cups 8, it is maintained spaced from the sheet metal of the cooking hob 14 by a distance such as to determine passages therewith for the secondary air intended for the inner portion 28 of the flame divider.
  • the cover 6 is formed in one piece and comprises an annular outer portion 52, a discoidal inner portion 54 and two profiled rad ial connection portions 56.
  • the gas entering from the conduit 18 leaves from the injectors 20 and enters the two vertical cond u its 46 of the flame d ivider 4, to entra in the primary air drawn in from above the cooking hob 1 4 through the apertures defined by the outer part of the profiled projection 22 of each cup 8 and the overlying flame divider, in accordance with the path indicated by the arrows 58 in Figure 4.
  • the m ixtu re obta ined i n th is man ner then propagates along the annular portion 26 of the flame divider 4 to feed the two rings of outer and intermediate flames thereof, then further propagates along the two rad ial conduits 36 to feed the central ring of flames of the inner portion 28.
  • the burner of the invention is much more advantageous than traditional multi-flame ring burners, and in particular:
  • the flame divider is of one- p iece d ie-cast construction without machining, it is of simple and economical manufacture
  • the gas/primary air mixture of the burner of the invention generated by the two radial venturi chambers is conveyed into the inner central portion 28 of the flame divider 4 not through rad ial ch an nels bou nded by the fla me d ivider and the cover, as i n the preceding embodiment, but by two radial channels 60 bounded by the flame divider 4 and the injector holder 2.
  • the injector holder 2 is provided, in the connection portion between the two cups 8, with two radial channels 60 which connect the two radial venturi mixing chambers to the inner portion 28 of the flame d ivider 4, wh ich is also provided with baffles 62 for upperly closing said channels 60.
  • the cover 6 the purpose of which is no longer to upperly bound the radial channels connecting the two mixing chambers to the inner portion 28 of the flame divider 4, can be formed in two separate parts, of which the outer part is of approximately annular shape and the inner part is of discoidal shape.
  • Th e em bod i m ent shown i n F ig u re 6 d iffers from the preced i ng embodiments by the addition, to the two cups 8 provided on their base with corresponding injectors, of a third central cup 8' provided on its base with a third injector 20', also communicating with the same gas feed conduit 18.
  • the inner portion 28 of the flame divider 4 communicates with the cup 8' via its own vertical conduit 46', through which the gas/primary air mixture is fed.
  • the flame divider 4 rests only partly on the underlying injector holder 2, such as to define access apertures for the primary air originating from above the cooking hob.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)

Abstract

L'invention porte sur un brûleur à gaz aux anneaux de flamme multiples, lequel brûleur comprend une pièce de support d'injecteur (2), un diviseur de flamme (4) ayant une partie externe (26) de forme globale annulaire et une partie interne (28) de forme globale circulaire, et des moyens (6) pour fermer sur le dessus lesdites parties externe et interne, lequel brûleur est caractérisé en ce que : - ladite pièce de support d'injecteur (2) porte, appliqués sur celle-ci, au moins deux injecteurs (20, 20') ayant un axe sensiblement vertical positionné dans un plan sensiblement diamétral du brûleur, - ledit diviseur de flamme (4) comprend au moins deux conduits sensiblement verticaux (46, 46') faisant face aux deux injecteurs (20, 20') du support d'injecteur (2), et s'ouvrant vers le haut dans une chambre à effet venturi horizontale, délimitée vers le haut par lesdits moyens de fermeture (6), - la région en aval de ladite chambre à effet venturi horizontale est reliée vis-à-vis des fluides à la partie interne (28) dudit diviseur de flamme (4), par l'intermédiaire de deux canaux (36, 60).
EP11723373.4A 2010-05-19 2011-05-17 Brûleur à gaz aux anneaux de flamme multiples Active EP2572141B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11723373T PL2572141T3 (pl) 2010-05-19 2011-05-17 Palnik gazowy z pewną liczbą kręgów płomieni

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVE2010A000023A IT1400182B1 (it) 2010-05-19 2010-05-19 Bruciatore a gas a più corone di fiamme.
PCT/EP2011/057994 WO2011144630A2 (fr) 2010-05-19 2011-05-17 Brûleur à gaz aux anneaux de flamme multiples

Publications (2)

Publication Number Publication Date
EP2572141A2 true EP2572141A2 (fr) 2013-03-27
EP2572141B1 EP2572141B1 (fr) 2014-10-15

Family

ID=43064607

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11723373.4A Active EP2572141B1 (fr) 2010-05-19 2011-05-17 Brûleur à gaz aux anneaux de flamme multiples

Country Status (8)

Country Link
EP (1) EP2572141B1 (fr)
CN (1) CN102906501B (fr)
BR (1) BR112012027693B1 (fr)
ES (1) ES2526144T3 (fr)
IT (1) IT1400182B1 (fr)
MX (1) MX345708B (fr)
PL (1) PL2572141T3 (fr)
WO (1) WO2011144630A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016142872A1 (fr) * 2015-03-10 2016-09-15 Defendi Italy S.R.L. Brûleur à gaz perfectionné
WO2018007892A1 (fr) * 2016-07-04 2018-01-11 BSH Hausgeräte GmbH Brûleur à gaz et appareil ménager de cuisson
WO2019123052A1 (fr) * 2017-12-21 2019-06-27 BSH Hausgeräte GmbH Dispositif d'injection pour un brûleur à gaz d'un appareil ménager, brûleur à gaz et appareil ménager

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVE20130027A1 (it) * 2013-05-29 2014-11-30 Defendi Italy Srl Bruciatore a gas perfezionato.
ES2720227T3 (es) 2014-09-30 2019-07-18 Electrolux Appliances AB Conjunto de quemador de gas para una placa de cocina
KR102297756B1 (ko) * 2014-12-17 2021-09-03 엘지전자 주식회사 버너
KR102301481B1 (ko) * 2014-12-17 2021-09-14 엘지전자 주식회사 버너
KR102297799B1 (ko) * 2014-12-17 2021-09-03 엘지전자 주식회사 버너
WO2016145746A1 (fr) * 2015-03-13 2016-09-22 广东美的厨房电器制造有限公司 Brûleur et appareil à gaz
WO2016145744A1 (fr) * 2015-03-13 2016-09-22 广东美的厨房电器制造有限公司 Brûleur
EP3270056A4 (fr) * 2015-03-13 2018-10-17 Guangdong Midea Kitchen Appliances Brûleur
CN108317544B (zh) * 2018-02-08 2019-12-31 佛山市顺德区吉孚电器有限公司 一种中餐式燃气炒菜灶
CN108332238B (zh) * 2018-02-08 2020-09-08 吴联凯 一种中餐式燃气灶
IT201900004867A1 (it) * 2019-04-01 2020-10-01 Sabaf Spa Bruciatore a gas
IT202100001640A1 (it) 2021-01-27 2022-07-27 Sabaf Spa Bruciatore atmosferico a gas per apparecchi di cottura.
US11940148B2 (en) 2021-10-28 2024-03-26 Electrolux Appliances Aktiebolag Multi injection dual ring gas burner for domestic gas cooking units
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

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE184384T1 (de) 1996-03-19 1999-09-15 Sabaf Spa Gasbrenner für küchengeräte
AU2002358969B2 (en) * 2002-11-12 2009-05-21 Sabaf S.P.A. Gas burner with separate feeding of the flame crowns
MY147945A (en) * 2004-02-02 2013-02-15 Electrolux Ab Gas burner
ITTO20040794A1 (it) * 2004-11-12 2005-02-12 Merloni Elettrodomestici Spa Sistema di bruciatori di gas per la cottura di alimenti di tipo perfezionato
CN1920383B (zh) * 2006-09-18 2010-09-29 谭六明 上进风式深内旋燃烧器
KR101182530B1 (ko) * 2007-12-14 2012-09-12 엘지전자 주식회사 탑버너 및 이를 포함하는 조리기기

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011144630A2 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016142872A1 (fr) * 2015-03-10 2016-09-15 Defendi Italy S.R.L. Brûleur à gaz perfectionné
WO2018007892A1 (fr) * 2016-07-04 2018-01-11 BSH Hausgeräte GmbH Brûleur à gaz et appareil ménager de cuisson
WO2019123052A1 (fr) * 2017-12-21 2019-06-27 BSH Hausgeräte GmbH Dispositif d'injection pour un brûleur à gaz d'un appareil ménager, brûleur à gaz et appareil ménager

Also Published As

Publication number Publication date
BR112012027693A2 (pt) 2016-08-16
EP2572141B1 (fr) 2014-10-15
MX2012013002A (es) 2013-03-05
WO2011144630A2 (fr) 2011-11-24
WO2011144630A3 (fr) 2012-08-02
BR112012027693B1 (pt) 2020-10-27
PL2572141T3 (pl) 2015-03-31
IT1400182B1 (it) 2013-05-17
CN102906501A (zh) 2013-01-30
MX345708B (es) 2017-02-13
ES2526144T3 (es) 2015-01-07
ITVE20100023A1 (it) 2011-11-20
CN102906501B (zh) 2016-08-03

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