EP0485645B1 - Brenner, insbesondere für Gaskochervorrichtung, mit einer grossen Betriebsflexibilität - Google Patents

Brenner, insbesondere für Gaskochervorrichtung, mit einer grossen Betriebsflexibilität Download PDF

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Publication number
EP0485645B1
EP0485645B1 EP90121601A EP90121601A EP0485645B1 EP 0485645 B1 EP0485645 B1 EP 0485645B1 EP 90121601 A EP90121601 A EP 90121601A EP 90121601 A EP90121601 A EP 90121601A EP 0485645 B1 EP0485645 B1 EP 0485645B1
Authority
EP
European Patent Office
Prior art keywords
gas
distributor
burner
flame
venturi
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
EP90121601A
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English (en)
French (fr)
Other versions
EP0485645A1 (de
Inventor
Giuseppe De'longhi
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.)
De'longhi Divisione Cucine SpA
Elba SpA
Original Assignee
De Longhi 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 De Longhi SpA filed Critical De Longhi SpA
Priority to EP90121601A priority Critical patent/EP0485645B1/de
Priority to AT90121601T priority patent/ATE149662T1/de
Priority to DE69030090T priority patent/DE69030090T2/de
Publication of EP0485645A1 publication Critical patent/EP0485645A1/de
Application granted granted Critical
Publication of EP0485645B1 publication Critical patent/EP0485645B1/de
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
    • 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 high operating flexibility particularly for gas-powered cooking devices of the type which comprises elements for feeding the gas and elements for burning said gas in a preset manner.
  • current burners which are used in gas-powered cooking devices such as for example classic domestic gas ranges, normally have a manifold each, said manifold being suitable for connecting the gas feed pipes to a gas injector, a mixer which has an internal duct which conveys the gas to a gas distributor and to a flame separation ring from the holes of which the flame escapes in a preset manner as a function of the setting of the cock for controlling the amount of gas which passes from the pipe to the burner.
  • a burner suitable for producing a small-size flame suitable for affecting surfaces of small-size containers a burner suitable for producing a large flame so as to be able to affect large-size containers, and burners which deliver flames the size of which is intermediate between said two flames are provided in a gas range as a function of the requirements of the user and of the purposes for which said range is manufactured.
  • FR-A-989 069 discloses a burner for gas cooking devices as defined in the pre-characterizing part of claim 1.
  • the gas distributors of said burner have not ports and openings for feeding air to the flame separation rings located in the gas distributors.
  • the technical aim at the base of the present invention is to solve the above described disadvantages of the known art.
  • an important object of the present invention is to provide a burner with high operating flexibility particularly for gas-powered cooking devices, which can provide the user with substantially three distinct values of the energy flow of a flame, said values being comprised between a maximum value and a minimum value with respect to a single value of the energy flow of a flame which can be obtained with a conventional burner.
  • Another object of the present invention is to provide a burner which occupies, for an equal maximum and minimum supplied energy flow, a smaller space than that occupied by conventional burners of a gas range.
  • Not least object of the invention is to provide a burner which has an extremely simple and functional structure and furthermore has a modest cost which is suitable for facilitating its diffusion with the public.
  • the burner with high operating flexibility according to the invention comprises, in a per se known manner, gas feeding elements, generally indicated by 2, and elements for burning said gas in a preset manner, generally indicated by 3.
  • the burner furthermore comprises means for the selective or simultaneous forming of at least a first flame 30 and of a second flame 31 which are mutually distinct and coaxial, since a first flame separation ring and a second flame separation ring, respectively indicated by 4 and 5, are provided and are mutually associated coaxially with gas distribution means.
  • said distribution means comprise a first distributor and a second distributor, respectively indicated by 6 and 7, which are associated with one another concentrically by means of screws 8.
  • the first distributor 6 and the second distributor 7 are therefore removably associated with mixing means for distributing the gas individually or simultaneously to each of the two rings 4 and 5.
  • the mixing means for the distribution of the gas are defined by a mixer 9 which is internally provided with a first Venturi-effect duct and with a second Venturi-effect duct, indicated by 10 and 11, which have a truncated-cone configuration the smaller diameter whereof faces respective injectors 12 and 13 which are supported by a manifold 14 which is suitable for connecting said injectors to the gas feed pipes, not illustrated in the drawings.
  • the mixer 9 furthermore advantageously has, on its outer surface, a plurality of longitudinal ridges 15 which are suitable for facilitating the dispersion of heat therefrom due to the high temperature which is transmitted from the flame separation rings 4 and 5 to said mixer by conduction.
  • the first distributor 6 furthermore has means for feeding air to the second ring 5, in order to allow a balanced feeding of oxygen for the optimization of the burning of the gas and therefore of the flame; said means comprise ports, each of which is generally indicated by 16, which are conveniently arranged circumferentially on the planar surface 17 of said distributor.
  • the ports 16 are connected to corresponding openings 18 which are arranged circumferentially on the second distributor 7.
  • the value of the diameter on which the ports 16 are arranged is conveniently substantially equal to the value of the diameter on which the openings 18 are arranged, so that there is a perfect correspondence therebetween.
  • the ports 16, as can be seen in Figure 4, are furthermore surrounded by a raised portion 20 which defines, on the planar surface 17, an accommodation seat 21 in which a corresponding enlarged portion 22 which surrounds the openings 18 of the second distributor 7 is arranged.
  • the raised portions 20 define, in the first distributor 6, channels 23 for guiding the gas from the second duct 11 to the first flame separation ring 4 so that said gas is not affected by the air which passes through the ports 16 and the openings 18 and vice versa.
  • the feeding of the gas from the first duct 10 to the second gas distributor 7 is instead obtained by virtue of the presence, on said second distributor, of a passage channel 24 which removably engages a second passage channel 25 defined on the mixer 9.
  • the openings 18 have, on the side directed toward the second flame separation ring 5, at least two diverging walls, indicated by 26, the function whereof is to uniformly distribute the gas along the entire circumference of the second ring 5 so as to optimize the flame delivered by said second ring.
  • the manifold 14 has two gas inlets 29 at which there are injectors 12 and 13 for feeding respectively the second flame separation ring 5 and the first flame separation ring 4.
  • the feeding of the gas to the inlets of the manifold 14 is furthermore adjusted in a per se known manner by one or two cocks which are not illustrated.
  • said cock allows for example to feed gas to the second flame separation ring if it is rotated clockwise, whereas it allows to feed gas to the first flame separation ring if it is rotated in counter-clockwise position.
  • the cock is arranged in a position which is substantially central with respect to the two preceding ones, it furthermore allows the simultaneous feeding of the two rings, thus obtaining a double flame the energy flow whereof is equal to the sum of the energy flow of the individual flames obtained on the individual rings.
  • the gas mixed with air rises from the injectors 12 and 13 through the first duct 10 and the second duct 11 to pass, as already shown, by means of the first distributor and second distributor, to the first flame separation ring and to the second flame separation ring, thus producing the intended flame or flames.
  • the passage of air is furthermore conveniently allowed by means of the ports 16 and the openings 18 for the optimum burning of the gas which feeds the second flame separation ring 5.
  • the burner according to the invention is particularly advantageous in that it allows to obtain a flame with three energy flow values, each of which is variable by means of a cock from a maximum value to a minimum value, together with the fact of having different flame sizes for the same burner.

Landscapes

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

Claims (5)

  1. Brenner mit großer Betriebsflexibilität insbesondere für Gaskocheinrichtungen, mit einem ersten Flammenseparierring (4), der konzentrisch und entfernbar in einem ersten Gasverteiler (6) angeordnet ist, und einem zweiten Flammenseparierring (5), der konzentrisch und entfernbar in einem zweiten Gasverteiler (7) angeordnet ist, wobei der erste und der zweite Gasverteiler Durchtritte (16) bzw. Öffnungen (18) zum Zuführen von Luft zum ersten und zweiten Flammenseparierring aufweisen, wobei der erste und der zweite Gasverteiler konzentrisch und entfernbar übereinander angeordnet und mit einem Mischer (9) verbunden sind, der einen ersten, mit dem ersten Gasverteiler (6) verbundenen Venturikanal und einem zweiten, mit dem zweiten Gasverteiler (7) verbundenen Venturikanal (10) enthält, wobei der erste und der zweite Venturikanal eine Kegelstumpfkonfigeration aufweisen und oberhalb und koaxial zu zwei Injektoren (12, 13) für das Gas angeordnet sind, die von einem Verteiler (14) mit den Rohrleitungen zum getrennten oder gleichzeitigen Fördern des Gases durch die Venturikanäle zu dem ersten und/oder zweiten Gasverteiler getragen werden.
  2. Brenner nach Anspruch 1, dadurch gekennzeichnet, daß die Durchtritte (16) durch eine hochstehende Partie (20) umgeben sind, wobei die hochstehenden Partien auf der ebenen Oberfläche des ersten Verteilers Kanäle (23) zum Führen nur des von dem zweiten Venturikanal (11) zum ersten Ring kommenden Gases definieren.
  3. Brenner nach Anspruch 1, dadurch gekennzeichnet, daß jede Öffnung (18) mindestens zwei divergierende Wände (26) aufweist, die für die gleichmäßige Verteilung der Luft zum zweiten Ring zum zweiten Ring hin gerichtet sind.
  4. Brenner nach Anspruch 1, dadurch gekennzeichnet, daß der zweite Verteiler einen Gasdurchgangskanal (24) aufweist, der für die Verteilung des Gases zum zweiten Flammenseparierring (5) mit dem zweiten Venturikanal verbunden ist.
  5. Brenner nach Anspruch 1, dadurch gekennzeichnet, daß der Mischer (9) an seiner Außenseite eine Mehrzahl von Längsrippen (15) aufweist.
EP90121601A 1990-11-12 1990-11-12 Brenner, insbesondere für Gaskochervorrichtung, mit einer grossen Betriebsflexibilität Expired - Lifetime EP0485645B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP90121601A EP0485645B1 (de) 1990-11-12 1990-11-12 Brenner, insbesondere für Gaskochervorrichtung, mit einer grossen Betriebsflexibilität
AT90121601T ATE149662T1 (de) 1990-11-12 1990-11-12 Brenner, insbesondere für gaskochervorrichtung, mit einer grossen betriebsflexibilität
DE69030090T DE69030090T2 (de) 1990-11-12 1990-11-12 Brenner, insbesondere für Gaskochervorrichtung, mit einer grossen Betriebsflexibilität

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90121601A EP0485645B1 (de) 1990-11-12 1990-11-12 Brenner, insbesondere für Gaskochervorrichtung, mit einer grossen Betriebsflexibilität

Publications (2)

Publication Number Publication Date
EP0485645A1 EP0485645A1 (de) 1992-05-20
EP0485645B1 true EP0485645B1 (de) 1997-03-05

Family

ID=8204709

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90121601A Expired - Lifetime EP0485645B1 (de) 1990-11-12 1990-11-12 Brenner, insbesondere für Gaskochervorrichtung, mit einer grossen Betriebsflexibilität

Country Status (3)

Country Link
EP (1) EP0485645B1 (de)
AT (1) ATE149662T1 (de)
DE (1) DE69030090T2 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002358969B2 (en) * 2002-11-12 2009-05-21 Sabaf S.P.A. Gas burner with separate feeding of the flame crowns
WO2011104230A2 (en) 2010-02-23 2011-09-01 Coprecitec, S.L. Regulation valve for a gas cooking appliance
US12188657B2 (en) 2020-01-02 2025-01-07 Samsung Electronics Co., Ltd. Gas burner device and cooking apparatus having the same

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1250838B (it) * 1991-09-26 1995-04-21 Merloni Elettrodomestici Spa Bruciatore di gas.
AU685865B2 (en) * 1993-12-09 1998-01-29 Ausmark International Pty Ltd Wok burner with dispersement plate
WO1998030838A1 (en) * 1997-01-09 1998-07-16 Robertshaw Controls Company Variable input gas top burner
IT237496Y1 (it) * 1997-05-15 2000-09-13 Smeg Spa Cucina a gas o piano di cottura con bruciatore a due corone difuoco concentriche comandate separatamente
IT1294585B1 (it) * 1997-08-11 1999-04-12 Defendi Srl Off Mec Bruciatore a gas a piu' settori di fiamma.
DE19905198A1 (de) 1999-02-09 2000-08-10 Agt Gas Technology Gmbh Kochstelle für Gasherde
DE19932143A1 (de) 1999-07-09 2001-01-11 Bsh Bosch Siemens Hausgeraete Gasbrenner für Geräte zum Garen von Nahrungsmitteln
DE10015746A1 (de) 2000-03-29 2001-10-04 Bsh Bosch Siemens Hausgeraete Kochgerät
IT1315325B1 (it) * 2000-04-28 2003-02-10 Paolo Moresco Bruciatore a gas per piano di cottura
FR2811410B1 (fr) * 2000-07-10 2002-10-04 Gaz De France Bruleur a melange de gaz et d'air a puissance accrue
US6322354B1 (en) 2000-07-17 2001-11-27 Wolf Appliance Company, Llc Stacked dual gas burner
AU2001291874A1 (en) * 2000-09-23 2002-04-02 Ega Engineering Gmbh Two circuit burner comprising a burner ring and a central burner
US6508645B1 (en) 2001-08-28 2003-01-21 Power Flame Incorporated Manifold diffuser assembly for a gas burner
ITMC20040024A1 (it) * 2004-02-13 2004-05-13 So Mi Press Societa Metalli In Doppio bruciatore per cucine a gas, del tipo a piu' corone concentriche di fiamme
KR100678283B1 (ko) 2005-01-19 2007-02-02 동양매직 주식회사 가스 버너
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
DE102006053424A1 (de) * 2006-11-13 2008-05-15 BSH Bosch und Siemens Hausgeräte GmbH Düsen-Injektor-Halter
ITTO20070133A1 (it) 2007-02-26 2008-08-27 Indesit Co Spa Sistema di bruciatori di gas per apparecchi di cottura per alimenti
ITRN20070013A1 (it) * 2007-02-27 2008-08-28 Indesit Company Spa Piano cottura.
ITRN20070012A1 (it) 2007-02-27 2008-08-28 Indesit Company Spa Piano cottura
US9022780B2 (en) * 2008-10-27 2015-05-05 Electrolux Home Products, Inc. Oval burner alignment method
CA2934675A1 (en) 2015-07-02 2017-01-02 Mabe, S.A. De C.V. Multi burner ovni
KR102395217B1 (ko) * 2015-10-14 2022-05-10 삼성전자주식회사 가스버너장치 및 이를 포함하는 조리기기
EP3671041B1 (de) * 2018-12-17 2024-05-22 Electrolux Appliances Aktiebolag Brennerkörper und haushaltsgerät mit einem brennerkörper und einer metallblechplatte
KR20230130454A (ko) * 2022-03-03 2023-09-12 삼성전자주식회사 가스 버너 장치 및 이를 갖는 조리 기기

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH166409A (fr) * 1932-12-03 1933-12-31 Le Reve Sa Brûleur à gaz.
FR989069A (fr) * 1949-04-20 1951-09-04 Brûleur à gaz perfectionné
FR1335280A (fr) * 1962-09-07 1963-08-16 Fargas S P A Brûleur perfectionné pour cuisinières à gaz
FR1421600A (fr) * 1964-11-06 1965-12-17 Sourdillon Ets Perfectionnements apportés aux appareils à gaz du genre des fourneaux, cuisinières, machines à laver, et autres
FR2404803A1 (fr) * 1977-09-29 1979-04-27 Sourdillon Sa Perfectionnements apportes aux ensembles bruleurs pour cuisinieres a gaz

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002358969B2 (en) * 2002-11-12 2009-05-21 Sabaf S.P.A. Gas burner with separate feeding of the flame crowns
WO2011104230A2 (en) 2010-02-23 2011-09-01 Coprecitec, S.L. Regulation valve for a gas cooking appliance
US12188657B2 (en) 2020-01-02 2025-01-07 Samsung Electronics Co., Ltd. Gas burner device and cooking apparatus having the same

Also Published As

Publication number Publication date
EP0485645A1 (de) 1992-05-20
DE69030090D1 (de) 1997-04-10
ATE149662T1 (de) 1997-03-15
DE69030090T2 (de) 1997-08-28

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