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EP0534301A2 - Brûleur à gaz pour la cuisson d'aliments - Google Patents

Brûleur à gaz pour la cuisson d'aliments Download PDF

Info

Publication number
EP0534301A2
EP0534301A2 EP92115822A EP92115822A EP0534301A2 EP 0534301 A2 EP0534301 A2 EP 0534301A2 EP 92115822 A EP92115822 A EP 92115822A EP 92115822 A EP92115822 A EP 92115822A EP 0534301 A2 EP0534301 A2 EP 0534301A2
Authority
EP
European Patent Office
Prior art keywords
burner
flame
gas
food cooking
passages
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
EP92115822A
Other languages
German (de)
English (en)
Other versions
EP0534301A3 (en
EP0534301B1 (fr
Inventor
Luciano Antonini
Antonio Quintini
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.)
Whirlpool EMEA SpA
Original Assignee
Merloni Elettrodomestici SpA
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 Merloni Elettrodomestici SpA filed Critical Merloni Elettrodomestici SpA
Publication of EP0534301A2 publication Critical patent/EP0534301A2/fr
Publication of EP0534301A3 publication Critical patent/EP0534301A3/en
Application granted granted Critical
Publication of EP0534301B1 publication Critical patent/EP0534301B1/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 refers to a gas burner for food cooking, in particular a double flame-crown burner.
  • Burners of the described type are conceived so as to present a flame separator element having the shape of a circular ring (tore), from which two series of flames exit: the first being directed towards the external and the second being directed towards the interior of the ring.
  • burners of the described type allow to obtain a better heat distribution, and are therefore particularly suitable in the case of use of pans of a large diameter.
  • Double flame-crown burners of the known type have however some problems, in their functioning and in their installation and maintenance; it is for these reasons, for example, that burners with double flame-crown, of common use in kitchens (in the sense of cooking apparatuses), are rarely applied in built-in appliances.
  • a further disturbing element is the fact of withdrawing the air from a zone in which turbulence can be present, due to the thermal convection effect and, in the cases where it is foreseen, for effect of forced ventilation which assures any eventual electronic components from reaching dangerous temperatures.
  • the flame of the burner in addition to the primary air requested for the air-gas mixture, the flame of the burner also requires secondary air for the combustion.
  • Such secondary air is drawn from the environment and reaches the external flame-crown without problems; on the contrary it can reach the internal crown only with extreme difficulty, i.e. when the burner is ignited and the container to be heated is placed above
  • a possible solution to such a problem is to provide for several openings or vertical channels between the interior of the cooking apparatus and the central zone of the circular ring that realises the flame separator.
  • the aim of the present invention is that of obviating the abovementioned problems and to indicate a gas burner, in particular with a double flame-crown that is of simple realisation and maintenance, that assures greater installation flexibility and that, by means of a constant and correct drawing of the secondary air for the internal flame-crown, and of the primary air for its mixing with the gas, assures a perfect combustion.
  • a further aim of the present invention is that of indicating a gas burner for food cooking in which the combustion is not affected by occasional currents of air.
  • the present invention has for its subject a gas burner for food cooking, of the type comprising a burner body and a flame separator element defining a chamber having an approximately toroidal shape, in particular a burner destined to produce a first flame-crown towards the external of said flame separator element and a second flame-crown towards the interior of said flame separator element, characterised in that the secondary air necessary for the combustion of said internal flame-crown is taken from above the cooking plane and that means for supplying said secondary air from the external of the burner to said internal flame-crown are provided.
  • reference number 1 indicates the burner subject of the present invention as a whole;
  • reference number 2 indicates a sump, on which is associated, in a removable way, a burner body, indicated with reference number 3; said body 3, is advantageously realised from two distinctive pieces, coupled between themselves by way of reciprocal references, for simplicity not represented in the drawings.
  • Said burner body has in its inferior part a central tubular portion 4 and radial centring fins 5, that realise a support plane for the body 3 on the sump 2; said fins 5 delimit radial passages, one of which is indicated with 6, such that the primary air drawn from the exterior can overcome the upper edge of the sump 2, descend in it and then ascend along the central hole of the tubular portion 4.
  • radial passages one of which is indicated with 6, such that the primary air drawn from the exterior can overcome the upper edge of the sump 2, descend in it and then ascend along the central hole of the tubular portion 4.
  • such passages 6 allow for the drawing of the air from above the cooking plane, indicated with the letter P.
  • a circular ring-shaped flame separator element On the superior part of said burner body 3 a circular ring-shaped flame separator element, indicated with 7, is arranged, which in conjunction with said body 3 defines a chamber having an approximately toroidal shape, indicated with 8.
  • Said flame separator 7 has two series of slots 9a and 9b for the exit of the flames, realised on the external and internal walls of the ring flame separator; through such slots 9a and 9b the external flame-crown and the internal flame-crown are respectively obtained.
  • reference number 10 the duct for supplying the burner with gas is indicated; reference number 11 indicates the injector or nozzle through which the same gas is introduced to the sump 2; the vertical axis of said injector 11 is substantially the same as the tubular portion 4.
  • louvers Over the passages 6, in the body 3 of the burner, louvers, indicated with 12, are realised, for allowing the drawing and the passage of the secondary air necessary for the correct combustion of the internal flame-crown; such louvers 12 place the central zone of the flame separator element 7 in communication with the exterior of the burner 1, i.e. with its peripheral zone.
  • passages 13 With reference number 13 four passages are indicated, obtained in said burner body 3; they extend from the tubular portion 4, and are disposed with a radial symmetry in respect of the axis of the injector, indicated with 14, but they do not necessarily lie on a plane being perpendicular to said axis. Said passages 13, in union with the tubular portion 4, constitute a mixing element apt at inducing a Venturi effect upon the air-gas mixture.
  • baffles 16 delimit circular portions of said chamber 8, in a number being equivalent to those of the passages having a Venturi effect (in the case illustrated in the figures, visible in particular in figure 1, the burner is provided with four passages 13 and four partition baffles 16).
  • the functioning of the burner object of the present invention is as follows.
  • the gas arrives from duct 10 and, through the injector 11, and enters the sump 2.
  • the primary air necessary for obtaining the air-gas mixture is drawn from above the cooking plane, from a zone which is not subject to disturbing elements and, through the passages 6, it enters the sump 2, following the path indicated by the arrow of the reference number "6".
  • the mixture then flows to the exterior of said portions, through the slots 9a and 9b, in order to be ignited and produce the two flame-crowns, that are in this way functionally divided in a number being equal to the number of passages 13 provided and do not therefore significantly suffer from occasional currents of air.
  • the secondary air necessary for the combustion of the external flame-crown is drawn from the environment, in the zone proximate to the slots 9a.
  • this secondary air is drawn through the louvers 12, realised through the burner body 3; following the path indicated by the arrow of the reference number "12" said secondary air, from the peripheral zone of the burner 1, reaches the central zone of the ring constituting the flame separator element 7.
  • the drawing zone for the primary and secondary air, external to the burner and to the cabinet of the cooking apparatus, is thus substantially the same; in order to avoid the mixing of the primary air flow with the secondary air flow, besides appropriately choosing the shapes and the sizes of passages 6 and louvers 12, separation shields are advantageously provided, one of which is visible in figure 2 with reference number 17.
  • the burner object of the present invention has a greatly reduced vertical encumbrance; internal operations (for example the replacement or the regulation of the injector 11) can be carried out in a very easy manner, after having manually removed the flame separator 7 and the burner body 3.
  • the partition baffles 16 are obtained from the burner body 3, but the same could be obtained directly on the flame separator 7.
  • a circular wall could be provided, for defining a toroidal chamber within the traditional flame separator, and baffles of the type illustrated in figures 1 and 2; alternatively, still for a single flame crown burner, baffles that radially branch off from the centre of the flame separator to its circumferential wall could be provided for, in a number being equal to the number of passages 13 provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
EP92115822A 1991-09-26 1992-09-16 Brûleur à gaz pour la cuisson d'aliments Expired - Lifetime EP0534301B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO910723 1991-09-26
ITTO910723A IT1250838B (it) 1991-09-26 1991-09-26 Bruciatore di gas.

Publications (3)

Publication Number Publication Date
EP0534301A2 true EP0534301A2 (fr) 1993-03-31
EP0534301A3 EP0534301A3 (en) 1993-06-16
EP0534301B1 EP0534301B1 (fr) 1997-05-14

Family

ID=11409602

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92115822A Expired - Lifetime EP0534301B1 (fr) 1991-09-26 1992-09-16 Brûleur à gaz pour la cuisson d'aliments

Country Status (4)

Country Link
EP (1) EP0534301B1 (fr)
DE (1) DE69219711T2 (fr)
ES (1) ES2103859T3 (fr)
IT (1) IT1250838B (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0634608A2 (fr) * 1993-07-16 1995-01-18 Officine Meccaniche Defendi S.R.L: Brûleur à gas à double anneau
EP0677705A2 (fr) * 1994-04-08 1995-10-18 MERLONI ELETTRODOMESTICI S.p.A. Brûleur à gaz à position variable et plaque de cuisson incorporant un tel brûleur
EP0797048A1 (fr) * 1996-03-19 1997-09-24 SABAF S.p.A. Brûleur à gaz pour appareil de cuisine
WO1999008046A1 (fr) * 1997-08-11 1999-02-18 Officine Meccaniche Defendi S.R.L. Bruleur a gaz comprenant plusieurs zones de flamme
WO1999011975A1 (fr) * 1997-08-28 1999-03-11 Aktiebolaget Electrolux Bruleur a gaz pour zone de cuisson
EP0903538A1 (fr) 1997-09-23 1999-03-24 SABAF S.p.A. Brûleur à gaz
FR2770620A1 (fr) 1997-11-04 1999-05-07 Sourdillon Sa Bruleur a gaz pour cuisiniere ou plan de cuisson
ES2147076A1 (es) * 1997-03-14 2000-08-16 Sourdillon Sa Quemador de gas para cocinas, perfeccionado.
US6322354B1 (en) 2000-07-17 2001-11-27 Wolf Appliance Company, Llc Stacked dual gas burner
US6325619B2 (en) * 2000-01-28 2001-12-04 Sourdillon Gas burner with multiple gas rings
EP1503146A1 (fr) * 2003-07-31 2005-02-02 Lemdys Réceptacle pour brûleur à gaz à flamme interne, et ensemble de cuisson comprenant un tel réceptacle et un tel brûleur
WO2005073630A1 (fr) 2004-02-02 2005-08-11 Aktiebolaget Electrolux Bruleur a gaz
EP2835580A3 (fr) * 2013-08-06 2015-08-12 Whirlpool Corporation Brûleur à gaz à flamme tourbillonnaire intérieure
US10436451B2 (en) 2016-10-06 2019-10-08 Whirlpool Corporation Cap to change inner flame burner to vertical flame
CN111720823A (zh) * 2020-06-22 2020-09-29 陈毅 一种燃烧器火盖

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH114790A (de) * 1925-04-09 1926-04-16 Vilhelm Brostrom Frederik Lotrechter Gasbrenner mit auswechselbarer Mischkammerdecke.
FR1335280A (fr) * 1962-09-07 1963-08-16 Fargas S P A Brûleur perfectionné pour cuisinières à gaz
GB1079532A (en) * 1965-01-27 1967-08-16 Parkinson Cowan Appliances Ltd Gas burners
JPS6016229A (ja) * 1984-06-05 1985-01-28 Matsushita Electric Ind Co Ltd ガスこんろ
FR2507743B1 (fr) * 1981-06-15 1986-05-30 Sabaf Spa Bruleur pour rechauds et plans de cuisson a gaz en general
GB2233444A (en) * 1989-08-16 1991-01-09 Lee Cheng San Cooking apparatus
FR2650369A1 (fr) * 1989-07-27 1991-02-01 Merloni Elettrodomestici Spa Bruleur a gaz pour la cuisson d'aliments
EP0485645A1 (fr) * 1990-11-12 1992-05-20 Miralfin S.R.L. Brûleur, en particulier pour cuisinières à gaz, présentant une grande flexibilité lors de l'opération

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH114790A (de) * 1925-04-09 1926-04-16 Vilhelm Brostrom Frederik Lotrechter Gasbrenner mit auswechselbarer Mischkammerdecke.
FR1335280A (fr) * 1962-09-07 1963-08-16 Fargas S P A Brûleur perfectionné pour cuisinières à gaz
GB1079532A (en) * 1965-01-27 1967-08-16 Parkinson Cowan Appliances Ltd Gas burners
FR2507743B1 (fr) * 1981-06-15 1986-05-30 Sabaf Spa Bruleur pour rechauds et plans de cuisson a gaz en general
JPS6016229A (ja) * 1984-06-05 1985-01-28 Matsushita Electric Ind Co Ltd ガスこんろ
FR2650369A1 (fr) * 1989-07-27 1991-02-01 Merloni Elettrodomestici Spa Bruleur a gaz pour la cuisson d'aliments
GB2233444A (en) * 1989-08-16 1991-01-09 Lee Cheng San Cooking apparatus
EP0485645A1 (fr) * 1990-11-12 1992-05-20 Miralfin S.R.L. Brûleur, en particulier pour cuisinières à gaz, présentant une grande flexibilité lors de l'opération

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 9, no. 135 (M-386)11 June 1985 & JP-A-60 016 229 ( MATSUSHITA ) 28 January 1985 *

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0634608A2 (fr) * 1993-07-16 1995-01-18 Officine Meccaniche Defendi S.R.L: Brûleur à gas à double anneau
EP0634608A3 (fr) * 1993-07-16 1995-06-21 Defendi Off Mec Srl Brûleur à gas à double anneau.
EP0677705A2 (fr) * 1994-04-08 1995-10-18 MERLONI ELETTRODOMESTICI S.p.A. Brûleur à gaz à position variable et plaque de cuisson incorporant un tel brûleur
EP0677705A3 (fr) * 1994-04-08 1997-05-28 Merloni Elettrodomestici Spa Brûleur à gaz à position variable et plaque de cuisson incorporant un tel brûleur.
EP0797048A1 (fr) * 1996-03-19 1997-09-24 SABAF S.p.A. Brûleur à gaz pour appareil de cuisine
KR100453121B1 (ko) * 1996-03-19 2004-12-23 사바프 에스. 피. 에이. 주방용버너
ES2147076A1 (es) * 1997-03-14 2000-08-16 Sourdillon Sa Quemador de gas para cocinas, perfeccionado.
WO1999008046A1 (fr) * 1997-08-11 1999-02-18 Officine Meccaniche Defendi S.R.L. Bruleur a gaz comprenant plusieurs zones de flamme
WO1999011975A1 (fr) * 1997-08-28 1999-03-11 Aktiebolaget Electrolux Bruleur a gaz pour zone de cuisson
EP0903538A1 (fr) 1997-09-23 1999-03-24 SABAF S.p.A. Brûleur à gaz
KR19990030013A (ko) * 1997-09-23 1999-04-26 쥬제페 살레리 가스 버너
FR2770620A1 (fr) 1997-11-04 1999-05-07 Sourdillon Sa Bruleur a gaz pour cuisiniere ou plan de cuisson
US6325619B2 (en) * 2000-01-28 2001-12-04 Sourdillon Gas burner with multiple gas rings
US6322354B1 (en) 2000-07-17 2001-11-27 Wolf Appliance Company, Llc Stacked dual gas burner
EP1503146A1 (fr) * 2003-07-31 2005-02-02 Lemdys Réceptacle pour brûleur à gaz à flamme interne, et ensemble de cuisson comprenant un tel réceptacle et un tel brûleur
FR2858393A1 (fr) * 2003-07-31 2005-02-04 Lemdys Receptacle pour bruleur a gaz a flamme interne, et ensemble de cuisson comprenant un tel receptacle et un tel bruleur
WO2005073630A1 (fr) 2004-02-02 2005-08-11 Aktiebolaget Electrolux Bruleur a gaz
CN101487592B (zh) * 2004-02-02 2012-07-25 电气联合股份有限公司 煤气燃烧器
US8408897B2 (en) 2004-02-02 2013-04-02 Aktiebolaget Electrolux Gas burner
CN101956977B (zh) * 2004-02-02 2013-07-10 电气联合股份有限公司 煤气燃烧器
CN1930420B (zh) * 2004-02-02 2013-08-28 电气联合股份有限公司 煤气燃烧器
EP2835580A3 (fr) * 2013-08-06 2015-08-12 Whirlpool Corporation Brûleur à gaz à flamme tourbillonnaire intérieure
US10436451B2 (en) 2016-10-06 2019-10-08 Whirlpool Corporation Cap to change inner flame burner to vertical flame
US11421889B2 (en) 2016-10-06 2022-08-23 Whirlpool Corporation Cap to change inner flame burner to vertical flame
CN111720823A (zh) * 2020-06-22 2020-09-29 陈毅 一种燃烧器火盖

Also Published As

Publication number Publication date
DE69219711T2 (de) 1997-11-13
ES2103859T3 (es) 1997-10-01
DE69219711D1 (de) 1997-06-19
EP0534301A3 (en) 1993-06-16
ITTO910723A0 (it) 1991-09-26
EP0534301B1 (fr) 1997-05-14
IT1250838B (it) 1995-04-21
ITTO910723A1 (it) 1993-03-26

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