EP1459012B1 - Gas burner with several flame sectors - Google Patents

Gas burner with several flame sectors Download PDF

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Publication number
EP1459012B1
EP1459012B1 EP02801909A EP02801909A EP1459012B1 EP 1459012 B1 EP1459012 B1 EP 1459012B1 EP 02801909 A EP02801909 A EP 02801909A EP 02801909 A EP02801909 A EP 02801909A EP 1459012 B1 EP1459012 B1 EP 1459012B1
Authority
EP
European Patent Office
Prior art keywords
flame
burner
hob
slits
sectors
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
EP02801909A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1459012A1 (en
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
Publication of EP1459012A1 publication Critical patent/EP1459012A1/en
Application granted granted Critical
Publication of EP1459012B1 publication Critical patent/EP1459012B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/08—Arrangement or mounting of burners
    • F24C3/085—Arrangement or mounting of burners on ranges
    • 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

  • This invention relates to a gas burner with several flame sectors.
  • Gas burners for food cooking comprising a burner body fed via a nozzle by a gas flow which entrains a flow of primary air and mixes therewith to form a mixture which when suitably ignited generates a ring of radial flames adjustable in size by a tap positioned upstream of the nozzle.
  • double ring In addition to traditional burners comprising one flame ring, so-called “double ring”, “triple ring” and double burners are also commercially available. These latter comprise two flame rings controllable separately by one or two feed taps.
  • This type of burner has been available for some time, but recently it has been sought to limit its dimensions to enable it to be also used in built-in cooking hobs having a height of about 30 mm, in addition to its use in free-standing cookers.
  • Burners of this type generally draw their primary and secondary air from above the cooking utensil so that normal burner operation is not interrupted by possible air movements which may take place within the interior of the cooking appliance, caused for example by the opening of a door in a furniture unit positioned below the cooking hob or by the presence of the oven situated under said hob.
  • the document WO9911975-A relates to a burner of small dimensions and hence suitable for mounting in built-in hobs, which comprises three flame rings and uses primary and secondary air taken from above the cooking hob.
  • the air-gas mixture is created by a radial venturi of very low height, and is distributed within the two flame rings via four horizontally disposed radial conduits.
  • the flames are distributed over two or at most three flame rings which are hence directed mostly towards the outside rather than the inside of the base of the pan.
  • a drawback of these burners consists of the fact that, as the third ring is provided on a fairly large diameter and as it is directed towards the outside of the cooking utensil, the resultant cooking is not uniform over the entire pan.
  • An object of the invention is to eliminate this drawback by providing a flame burner with four or more flames having excellent flame distribution below the pan to hence obtain high cooking efficiency while at the same time maintaining the now well consolidated dimensioning and operating principle.
  • the burner of the invention comprises a cup piece 2 provided lowerly with a conduit 4 feeding an injector 6. At its upper edge, the cup piece comprises an annular flange 8 for its fixing to the sheet metal 10 of the cooking hob. On the cup 2 there rests a flame divider element, indicated overall by 12 and consisting of two parts, namely the venturi tube 14 and the hollow body 16, these being joined together by connection elements 18.
  • the venturi tube 14 comprises, for its support and centering on the cup piece 2, a flange 20 rigid with a frusto-conical tube piece 22 facing the injector 6 and from which there extent four equiangular radial webs 24 which with the hob 10 and annular flange 8 form radial channels 26 for entry of the primary air.
  • the hollow body 16 presents a circular central portion 28 from which four radial webs 30 extend to form elements by which two annular chambers 32, 34 respectively are joined together.
  • the outer annular chamber 34 comprises along its outer edge a first ring 36 of flame slits and along its inner edge a second ring 38 of flame slits 38. Said ring is closed upperly by an annular cap 40.
  • the inner annular chamber 32 comprises along its outer edge a third ring 40 of flame slits and along its inner edge a fourth ring 42 of flame slits.
  • the fourth flame ring 42 is formed as four sectors 44, with the flame slits of each sector disposed parallel to each other.
  • the annular chamber 32 is closed upperly by an annular cap 46.
  • the flame divider 12 forms channels 56 for the passage of secondary air to the second 38, third 40 and fourth 42 flame ring.
  • the central portion 28 comprises on its surface an annular rim 58 in which flame slits 60 are provided.
  • the central body also presents a hole 62 feeding a venturi nozzle 64 faced by a closure plate 66.
  • This embodiment with five flame rings presents the further advantage that the flame is directed into a very localized central region.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
EP02801909A 2001-10-24 2002-10-23 Gas burner with several flame sectors Expired - Lifetime EP1459012B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT2001VE000043A ITVE20010043A1 (it) 2001-10-24 2001-10-24 Bruciatore a gas a piu' settori di fiamma
ITVE20010043 2001-10-24
PCT/EP2002/011846 WO2003036168A1 (en) 2001-10-24 2002-10-23 Gas burner with several flame sectors

Publications (2)

Publication Number Publication Date
EP1459012A1 EP1459012A1 (en) 2004-09-22
EP1459012B1 true EP1459012B1 (en) 2009-08-05

Family

ID=11461090

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02801909A Expired - Lifetime EP1459012B1 (en) 2001-10-24 2002-10-23 Gas burner with several flame sectors

Country Status (5)

Country Link
EP (1) EP1459012B1 (it)
AT (1) ATE438830T1 (it)
DE (1) DE60233259D1 (it)
IT (1) ITVE20010043A1 (it)
WO (1) WO2003036168A1 (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2701432C2 (ru) * 2015-03-10 2019-09-26 Дефенди Итали С.Р.Л. Усовершенствованная газовая горелка

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20030829A1 (it) * 2003-04-18 2004-10-19 Smeg Spa Fornello a gas e piano di cottura.
ITPS20030016A1 (it) * 2003-04-18 2004-10-19 So M I Press Societa Metalli I Niettati Spa Bruciatore per fornelli a gas, di tipo perfezionato.
ITUD20030137A1 (it) * 2003-06-23 2004-12-24 Sami Srl Bruciatore a tripla corona.
US7594812B2 (en) * 2005-01-17 2009-09-29 SO. M. I Press - Societa′ Metalli Iniettati, SpA Double burner for gas cookers, of the type provided with multiple concentric flame crowns
TR200801411T1 (tr) * 2005-07-14 2008-08-21 Ser Day.Tüketi̇mmallari İç Ve Diş Ti̇caret Ltd.Şti̇ Bir yakıcı.
US7661954B2 (en) * 2005-09-13 2010-02-16 Uwe Harneit Gas burner
CN102889620B (zh) * 2011-07-21 2016-08-10 林内株式会社 燃气炉具
EP2986913B1 (en) * 2013-04-17 2019-02-27 SABAF S.p.A. Gas burner for cooking hobs
ES2567352B1 (es) * 2014-10-21 2017-02-13 BSH Electrodomésticos España S.A. Punto de cocción a gas y placa de cocción
CA2934675A1 (en) 2015-07-02 2017-01-02 Mabe, S.A. De C.V. Multi burner ovni
CN105402780B (zh) * 2015-12-28 2017-08-11 浙江博立灶具科技有限公司 炊用燃气大锅灶
CN105782980B (zh) * 2016-05-10 2018-01-16 广东星立方厨房科技有限公司 一种燃烧器的分火器座及灶具燃烧器
US10393371B2 (en) 2016-12-30 2019-08-27 Whirlpool Corporation Gas burner
CN108036314A (zh) * 2017-12-29 2018-05-15 华帝股份有限公司 一种特殊出气结构燃烧器
CN109595603B (zh) * 2018-12-18 2023-12-29 成都前锋电子有限责任公司 一种燃气灶具分火器

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2405431A1 (fr) * 1977-10-10 1979-05-04 Martinez Antoine Bruleur a gaz
GB2197063B (en) * 1986-10-29 1990-08-22 Chin Shin Chang Gas burner
DE69604153T2 (de) * 1996-03-19 2000-05-25 Sabaf S.P.A., Lumezzane Gasbrenner für Küchengeräte
WO1999011975A1 (en) * 1997-08-28 1999-03-11 Aktiebolaget Electrolux A gas hotplate burner
US5842849A (en) * 1997-09-05 1998-12-01 Huang; Hsu-Sheng Gas burner
US6132205A (en) * 2000-01-06 2000-10-17 Harneit; Uwe Multi-ring sealed gas burner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2701432C2 (ru) * 2015-03-10 2019-09-26 Дефенди Итали С.Р.Л. Усовершенствованная газовая горелка

Also Published As

Publication number Publication date
EP1459012A1 (en) 2004-09-22
ATE438830T1 (de) 2009-08-15
ITVE20010043A1 (it) 2003-04-24
WO2003036168A1 (en) 2003-05-01
DE60233259D1 (de) 2009-09-17

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