EP3775686B1 - Gasbrennergruppe - Google Patents

Gasbrennergruppe Download PDF

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Publication number
EP3775686B1
EP3775686B1 EP19707771.2A EP19707771A EP3775686B1 EP 3775686 B1 EP3775686 B1 EP 3775686B1 EP 19707771 A EP19707771 A EP 19707771A EP 3775686 B1 EP3775686 B1 EP 3775686B1
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EP
European Patent Office
Prior art keywords
gas burner
air inlet
mixing chamber
gas
venturi tube
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.)
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Application number
EP19707771.2A
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English (en)
French (fr)
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EP3775686A1 (de
Inventor
Beria Isik CANTURK
Mustafa ONAL
Mehmet Marasli
Asli Saime Kayihan
Cumhur Ayvazoglu
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.)
Arcelik AS
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Arcelik AS
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Publication date
Application filed by Arcelik AS filed Critical Arcelik AS
Publication of EP3775686A1 publication Critical patent/EP3775686A1/de
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Publication of EP3775686B1 publication Critical patent/EP3775686B1/de
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    • 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
    • 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 group capable of forming a plurality of flame crowns.
  • cooker appliances comprise gas burner groups having at least one gas burner plate on which the containers for cooking, for example cooking pots are placed, and a plurality of gas burner heads enabling heating said containers on the gas burner plate.
  • burner head performance depends on the stability of generated flames, the emission values of the gasses hazardous to human health such as CO, NOx dissipated due to burning of gas, the transmitted amount to a cooking pot, of the energy generated by burning of gas, and the size of the area under a cooking pot heated by the flames.
  • the flames generated around a gas burner head can only heat the edges of a cooking pot placed thereon since the flames encircle a single ring, and it may not be possible to provide all of the above-mentioned features.
  • gas burner heads are required, capable of forming a plurality of flame crowns in order to heat the containers referred to as woks.
  • the flames consist of two or three or four crowns and the flames are enabled to contact both the edges and the center of a pot.
  • the aim of the present invention is to realize a gas burner group with enhanced burning efficiency.
  • the gas burner group realized to achieve the aim of the invention and disclosed in the first claim and the dependent claims, comprises a gas burner body generating flame by burning flammable gases and enabling a cooking container placed thereon to be heated, having an inner mixing chamber in which gas and ambient air is mixed, feeding an inner flame crown, at least one vertical nozzle enabling transmitting gas to the inner mixing chamber; a gas burner head placed on the gas burner body, enabling transmitting flame to the base of a cooking container through the holes disposed around it; a gas burner cap placed on the gas burner head; a first horizontal nozzle and a second horizontal nozzle placed opposite each other on the gas burner body; a first outer mixing chamber and a second outer mixing chamber provided on the gas burner body; a first Venturi tube enabling transmitting the gas received through the first horizontal nozzle to the first outer mixing chamber; and a second Venturi tube enabling transmitting the gas received through the second horizontal nozzle to the second outer mixing chamber.
  • Flammable gas and ambient air are mixed in the mixing chamber, and the containers placed on the gas burner head are heated by the flames released through the holes.
  • the gas burner group comprises a vertical nozzle feeding the inner flame crown and two horizontal nozzles feeding the outer flame crown.
  • the gas burner group of the invention comprises at least one air inlet port provided on the gas burner body next to the first horizontal nozzle, extending to the first Venturi tube, and at least one second air inlet port provided on the gas burner body next to the second horizontal nozzle, extending to the second Venturi tube.
  • first horizontal nozzle When the fuel transmitted through the first horizontal nozzle is transmitted to the first Venturi tube, it advances by mixing with the air received through the first air inlet port. A homogeneous gas-air mixture is thus obtained in the first outer mixing chamber.
  • the fuel transmitted through the second horizontal nozzle is transmitted to the second Venturi tube, it advances by mixing with the air received through the second air inlet port, thereby enabling obtaining a homogeneous gas-air mixture in the second outer mixing chamber.
  • the at least one first air inlet duct extends outwards from the first air inlet port, in parallel to the first horizontal nozzle
  • the at least one second air inlet duct extends outwards from the second air inlet port, in parallel to the second horizontal nozzle.
  • the first air inlet duct and the second air inlet duct extending outwards from the gas burner body facilitate conveying air from the outer environment to the first air inlet port and to the second air inlet port. The amount of air received from the outer environment is thus increased, enabling continuous fresh air transmission to the first outer mixing chamber and to the second outer mixing chamber.
  • the first air inlet duct has a cross-section getting narrower towards the first air inlet port
  • the second air inlet duct has a cross-section getting narrower towards the second air inlet port. Venturi effect is created therein thanks to the difference between the inlet and outlet cross-sections of the first air inlet duct and the air inlet duct. By this, more fresh air intake is enabled into the first air inlet duct and the second air inlet duct. A more homogeneous gas-air mixture is sent to the first outer mixing chamber and the second outer mixing chamber.
  • the first Venturi tube and the second Venturi tube are positioned angulated with respect to each other on the gas burner body
  • the volume in the gas burner body is utilized more efficiently, enabling elongating the lengths of the Venturi tubes.
  • a homogeneous gas-air mixture is thus performed in the first Venturi tube and the second Venturi tube.
  • the first Venturi tube has a cross-section getting wider from the first horizontal nozzle towards the first outer mixing chamber, and the second Venturi tube with a cross-section getting wider from the second horizontal nozzle towards the second outer mixing chamber.
  • the Venturi effect is enhanced thanks to the difference in the inlet and outlet cross-sections of the first Venturi tube and the second Venturi tube, enabling more fresh air intake into the Venturi tubes.
  • a more homogeneous gas-air mixture is sent to the first outer mixing chamber and the second outer mixing chamber.
  • the gas burner body comprises an upper body and a lower body.
  • the gas burner body is assembled by attaching the lower body and the upper body to each other.
  • the mounting of the nozzles to the gas burner body is facilitated by means of the multiple part form of the gas burner body.
  • a wok type gas burner group capable of generating a plurality of flame crowns, improving the burning efficiency by creating a homogeneous gas-air mixture by means of a plurality of nozzles extending in vertical and horizontal directions,.
  • the gas burner group (1) comprises a gas burner body (2) generating flame by burning flammable gases and enabling a cooking container placed thereon to be heated, having
  • the gas burner group (1) of the invention comprises,
  • the gas burner group (1) by means of which an inner flame crown and an outer flame crown encircling the inner flame crown are generated, enables heating a cooking container placed thereon with higher power.
  • the inner flame crown is fed by the gas-air mixture formed in the inner mixing chamber (3) provided in the center of the gas burner body (2), by mixing air with the gas transmitted through the vertical nozzle (4) provided on the base of the inner mixing chamber (3).
  • the outer flame crown is fed by the gas-air mixture formed by mixing in the first outer mixing chamber (11) and the second outer mixing chamber (12), the gas transmitted through the first horizontal nozzle (9) and the second horizontal nozzle (10) placed opposite each other in the gas burner body (2), with the air received through the first air inlet port (15) and the second air inlet port (16).
  • the air required for burning is continuously provided thanks to feeding the gas-air mixture transmitted to the outer flame crown, separately through the first air inlet port (15) and the second air inlet port (16), thereby enabling performing the burning process effectively.
  • emission formation is prevented, likely to occur due to not burning of the gas transmitted through the first horizontal nozzle (9) and the second horizontal nozzle (10).
  • the gas burner group of the invention comprises at least one first air inlet duct (17) extending outwards from the first air inlet port (15), in parallel to the first horizontal nozzle (9), and at least one second air inlet duct (18) extending outwards from the second air inlet port (16), in parallel to the second horizontal nozzle (10). Air received from the outer environment is conveyed along the first air inlet duct (17) and the second air inlet duct (18), and is transmitted to the first outer mixing chamber (11) and the second outer mixing chamber (12).
  • the first air inlet duct (17) has a cross-section getting narrower towards the first air inlet port (15), and the second air inlet duct (18) has a cross-section getting narrower towards the second air inlet port (16).
  • a homogeneous gas-air mixture is obtained by increasing the flow rate of the air received from the outer environment into the first outer mixing chamber (11) and the second outer mixing chamber (12) thanks to the difference between the inlet and outlet cross-sections of the first air inlet duct (17) and the inlet duct (18).
  • the first Venturi tube (13) and the second Venturi tube (14) are positioned angulated with respect to each other on the gas burner body (2).
  • the lengths of both the first Venturi tube (13) and the second Venturi tube (14) is enabled to be elongated by means of angulated positioning with respect to each other in horizontal direction the first Venturi tube (13) and the second Venturi tube (14) extending to the first outer mixing chamber (11) and the second outer mixing chamber (12) feeding the outer flame crown. Gas and air are thus enabled to be mixed more homogeneously in the first Venturi tube (13) and the second Venturi tube (14). Burning efficiency of the gas burner group (1) is enhanced thanks to the obtained homogeneous gas-air mixture.
  • the gas transmitted to the first outer mixing chamber (11) and the second outer mixing chamber (12) through the angulated positioned first Venturi tube (13) and second Venturi tube (14), moves in radial direction by colliding the walls of the first outer mixing chamber (11) and the second outer mixing chamber (12).
  • This enables the gas-air mixture transmitted to the gas burner head (7) to be effectively distributed around the gas burner head (7), providing symmetrical flame formation.
  • the first Venturi tube (13) has a cross-section getting wider from the first horizontal nozzle (9) towards the first outer mixing chamber (11), and the second Venturi tube (14) has a cross-section getting wider from the second horizontal nozzle (10) towards the second outer mixing chamber (12).
  • a more homogeneous gas-air mixture is sent to the first outer mixing chamber (11) and the second outer mixing chamber (12) by means of the difference in inlet and outlet cross-sections of the first Venturi tube (13) and the second Venturi tube (14).
  • the gas burner body (2) comprises an upper body (20) and a lower body (19).
  • the gas burner body (2) is assembled by attaching the lower body (19) and the upper body (20) to each other. Production is facilitated by means of the multiple piece form of the gas burner body (2).
  • homogeneous gas-air mixture is formed by means of a first air inlet port (15) and a second air inlet port (16) positioned next to a first horizontal nozzle (9) and a second horizontal nozzle (10) feeding the outer flame crown, enhancing burning efficiency.

Landscapes

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

Claims (7)

  1. Eine Gasbrennergruppe (1) umfasst einen Gasbrennerkörper (2), der eine Flamme durch Verbrennen brennbarer Gase erzeugt und es ermöglicht, einen darauf platzierten Kochbehälter zu erhitzen, mit
    - einer inneren Mischkammer (3), in dem Gas und Umgebungsluft gemischt werden und eine innere Flammenkrone speisen,
    - mindestens einer vertikalen Düse (4), die eine Übertragung von Gas in die innere Mischkammer (3) ermöglicht,
    einem auf dem Gasbrennerkörper (2) angeordneten Gasbrennerkopf (7), der es ermöglicht, die Flamme durch die um ihn herum angeordneten Löcher auf den Boden eines Kochbehälters zu übertragen, eine auf den Gasbrennerkopf (7) aufgesetzte Gasbrennerkappe (8),
    - einer ersten horizontalen Düse (9) und einer zweiten horizontalen Düse (10), die einander gegenüber auf dem Gasbrennerkörper (2) angeordnet sind,
    - einer ersten äußeren Mischkammer (11) und einer zweiten äußeren Mischkammer (12), die am Gasbrennerkörper (2) vorgesehen sind,
    - einem ersten Venturi-Rohr (13), das die Übertragung des durch die erste horizontale Düse (9) empfangenen Gases zu der ersten äußeren Mischkammer (11) ermöglicht, und ein zweites Venturi-Rohr (14), das die Übertragung des durch die zweite horizontale Düse (10) empfangenen Gases zu der zweiten äußeren Mischkammer (12) ermöglicht, gekennzeichnet durch
    - mindestens eine Lufteinlassöffnung (15), die an dem Gasbrennerkörper (2) neben der ersten horizontalen Düse (9) vorgesehen ist und sich zu dem ersten Venturi-Rohr (13) erstreckt,
    - durch mindestens eine zweite Lufteinlassöffnung (16), die an dem Gasbrennerkörper (2) neben der zweiten horizontalen Düse (10) vorgesehen ist und sich zu dem zweiten Venturi-Rohr (14) erstreckt, und durch
    mindestens eine erste Lufteinlassleitung (17), die sich von der ersten Lufteinlassöffnung (15) parallel zu der ersten horizontalen Düse (9) nach außen erstreckt, und mindestens einen zweiten Lufteinlasskanal (18), der sich von der zweiten Lufteinlassöffnung (16) parallel zu der zweiten horizontalen Düse (10) nach außen erstreckt.
  2. Eine Gasbrennergruppe (1), wie in Anspruch 1 aufgeführt, ist dadurch gekennzeichnet, dass der erste Lufteinlassleitung (17) einen zur ersten Lufteinlassöffnung (15) hin schmaler werdenden Querschnitt und der zweite Lufteinlasskanal (18) einen zur zweiten Lufteinlassöffnung (16) hin schmaler werdenden Querschnitt hat
  3. Eine Gasbrennergruppe (1), wie in einem der vorherigen Ansprüchen aufgeführt, ist dadurch gekennzeichnet, dass das erste Venturi-Rohr (13) und das zweite Venturi-Rohr (14) im Winkel zueinander am Gasbrennerkörper (2) angeordnet sind.
  4. Eine Gasbrennergruppe (1), wie in einem der vorherigen Ansprüchen aufgeführt, ist dadurch gekennzeichnet, dass erste Venturi-Rohr (13) einen von der ersten horizontalen Düse (9) zur ersten äußeren Mischkammer (11) hin breiter werdenden Querschnitt aufweist, und das zweite Venturi-Rohr (14) einen Querschnitt hat, der von der zweiten horizontalen Düse (10) zu der zweiten äußeren Mischkammer (12) breiter wird.
  5. Eine Gasbrennergruppe (1), wie in einem der vorherigen Ansprüchen aufgeführt, ist dadurch gekennzeichnet, dass der Gasbrennerkörper (2) einen Unterkörper (19) und einen Oberkörper (20) aufweist.
  6. Ein Kochgerät umfasst eine Gasbrennergruppe (1) nach einem der vorhergehenden Ansprüche.
  7. Ein Kochherd umfasst eine Gasbrennergruppe (1) nach einem der vorhergehenden Ansprüche.
EP19707771.2A 2018-03-30 2019-02-25 Gasbrennergruppe Active EP3775686B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201804476 2018-03-30
PCT/EP2019/054589 WO2019185256A1 (en) 2018-03-30 2019-02-25 A gas burner group

Publications (2)

Publication Number Publication Date
EP3775686A1 EP3775686A1 (de) 2021-02-17
EP3775686B1 true EP3775686B1 (de) 2023-05-10

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ID=65576358

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19707771.2A Active EP3775686B1 (de) 2018-03-30 2019-02-25 Gasbrennergruppe

Country Status (2)

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EP (1) EP3775686B1 (de)
WO (1) WO2019185256A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202100001640A1 (it) * 2021-01-27 2022-07-27 Sabaf Spa Bruciatore atmosferico a gas per apparecchi di cottura.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6322354B1 (en) * 2000-07-17 2001-11-27 Wolf Appliance Company, Llc Stacked dual gas burner
ITVE20050004A1 (it) * 2005-01-20 2006-07-21 Ohg Defendi S R L Bruciatore a gas per apparecchiature di cottura.
ITTO20070133A1 (it) 2007-02-26 2008-08-27 Indesit Co Spa Sistema di bruciatori di gas per apparecchi di cottura per alimenti
ITVE20070018A1 (it) * 2007-03-23 2008-09-24 Defendi Italy Srl Bruciatore perfezionato a gas per apparecchi di cottura.-
TR201702673A2 (tr) * 2017-02-22 2018-09-21 Arcelik As Bi̇r bek grubu

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Publication number Publication date
EP3775686A1 (de) 2021-02-17
WO2019185256A1 (en) 2019-10-03

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