EP3410011A1 - Gasbrenneranordnung, vorzugsweise für ein gaskochfeld - Google Patents

Gasbrenneranordnung, vorzugsweise für ein gaskochfeld Download PDF

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Publication number
EP3410011A1
EP3410011A1 EP17173312.4A EP17173312A EP3410011A1 EP 3410011 A1 EP3410011 A1 EP 3410011A1 EP 17173312 A EP17173312 A EP 17173312A EP 3410011 A1 EP3410011 A1 EP 3410011A1
Authority
EP
European Patent Office
Prior art keywords
gas
burner assembly
gas burner
burner
assembly according
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.)
Withdrawn
Application number
EP17173312.4A
Other languages
English (en)
French (fr)
Inventor
Fabio Rasi
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.)
Electrolux Appliances AB
Original Assignee
Electrolux Appliances AB
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 Electrolux Appliances AB filed Critical Electrolux Appliances AB
Priority to EP17173312.4A priority Critical patent/EP3410011A1/de
Publication of EP3410011A1 publication Critical patent/EP3410011A1/de
Withdrawn legal-status Critical Current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
    • 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
    • F23D14/48—Nozzles
    • F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration

Definitions

  • the present invention relates to a gas burner assembly.
  • the gas burner assembly is provided for a gas cooking hob.
  • the present invention relates to a gas cooking hob, in particular for a domestic appliance.
  • the gas burner includes main flame ports and secondary flame ports.
  • Said main flame port is high and narrow and generates a main flame for transferring the heat.
  • the secondary flame port is arranged close to the main flame port and is smaller than said main flame port.
  • the secondary flame port is provided for stabilising the main flame.
  • the main flame port with the secondary flame port is usually formed on aluminium burner crowns.
  • the main flame port has the shape of a hole, wherein above or beneath a pilot flame is generated for stabilising the main flame. The latter is often used at brass flame spreaders.
  • the main flame for transferring the heat and the secondary flame for stabilising the speed and combustion of main flame.
  • the object is achieved by the gas burner assembly according to claim 1.
  • a gas burner assembly preferably for a gas cooking hob, is provided, wherein:
  • the main idea of the present invention is the shape of the flame ports.
  • the cross-section of the flame port extends perpendicular to the flow direction of the air-gas mixture.
  • the cross-section of the spoon is relative flat.
  • the inventive flame ports result in flame shapes, which optimise the heat transfer. No secondary flames are required in order to stabilise the main flames.
  • the gas is completely used for heating a subject above the gas burner assembly. Further, the inventive flame ports are easy to clean.
  • the width of the flame port is between 2 mm and 6 mm, preferably between 3 mm and 5 mm, in particular 4 mm.
  • the height of the flame port is between 1 mm and 3 mm, preferably between 1.5 mm and 2.5 mm, in particular 2 mm.
  • the ratio between the width and the height of the flame port may be between one and three.
  • each flame port is formed on the top side of the side wall of the burner crown element, while the top wall of each flame port is provided by the burner cap.
  • the lateral walls of the flame port are inclined, wherein the width of said flame port increases from the bottom up.
  • the transition from the lateral wall to the bottom wall of the flame port may be smooth and without any edges.
  • the bottom wall of the flame ports may be convex.
  • the burner crown element includes a base plate, wherein preferably the base plate is formed as a circular or elliptic disk.
  • the side wall of the burner crown element extends upwards from said base plate along a circular or elliptic path.
  • the side wall of the burner crown element may take course along an arbitrary path.
  • an opening for supplying a gas-air mixture is formed in the centre of the base plate.
  • the base plate may be convex, wherein the height in the centre of the inner space of gas burner assembly is lower than the height in an outer portion of said inner space, so that a Venturi effect is achieved.
  • the burner crown element is formed as single-piece part.
  • the burner cap is made of steel, cast iron or brass.
  • the present invention relates to a gas cooking hob, in particular for a domestic appliance, wherein the gas cooking hob comprises at least one gas burner assembly mentioned above.
  • FIG 1 illustrates a schematic exploded perspective view of a gas burner assembly 10 according to a preferred embodiment of the present invention.
  • the gas burner assembly 10 is provided for a gas cooking hob.
  • the gas burner assembly 10 comprises a burner cap 12 and a burner crown element 14.
  • the burner cap is made of steel, cast iron or brass.
  • the burner crown element 14 includes a base plate 16 and a side wall 18.
  • the base plate 16 is substantially formed as a circular disk.
  • the side wall 18 extends upwards from said base plate 16 along a circular path.
  • the burner crown element 14 is formed as a single-piece part.
  • An inner space of the gas burner assembly 10 is limited by the burner cap 12, the base plate 16 and the side wall 18.
  • An opening 22 is formed in the centre of the base plate 16. Said opening 22 is provided for introducing a gas-air mixture into the inner space of the gas burner assembly 10.
  • a plurality of flame ports 20 is formed on the top side of the side wall 18 of the burner crown element 14.
  • Each flame port 20 has a shape similar to a spoon.
  • the lateral walls and the bottom wall of each flame port 20 are formed on the top side of the side wall 18 of the burner crown element 14.
  • the top wall of each flame port 20 is provided by the burner cap 12.
  • the cross-section of the flame port 20 is relative flat.
  • the cross-section of the flame port 20 extends perpendicular to the flow direction of the air-gas mixture leaving the inner space of the gas burner assembly 10.
  • the cross-section of the flame port 20 is similar to the cross-section of a spoon.
  • the width w of the flame port 20 is between 2 mm and 6 mm, preferably between 3 mm and 5 mm. In particular, the width w of the flame port 20 is about 4 mm.
  • the height h of the flame port 20 is between 1 mm and 3 mm, preferably between 1.5 mm and 2.5 mm. In particular, the height h of the flame port 20 is about 2 mm.
  • the flame ports 20 result in flame shapes, which optimise the heat transfer. No secondary flames are required in order to stabilise the main flames. In this way, the gas is completely used for heating a cooking vessel above the gas burner assembly 10. Further, the flame ports 20 are easy to clean.
  • the base plate 16 of the burner crown element 14 is convex, so that the height in the centre of the inner space of gas burner assembly 10 is lower than the height in the outer portion of said inner space. This results in a Venturi effect.
  • FIG 2 illustrates a schematic detailed perspective view of the gas burner assembly 10 according to the preferred embodiment of the present invention.
  • FIG 2 clarifies the shapes of the flame ports 20.
  • the lateral walls of the flame ports 20 are inclined, so that the width of the flame ports 20 increases from the bottom up.
  • the bottom wall of the flame ports 20 is marginally convex.
  • the transition from the lateral wall to the bottom wall is smooth and without any sharp edges.
  • FIG 3 illustrates a schematic detailed perspective view of a burner crown element 14 for the gas burner assembly 10 according to the preferred embodiment of the present invention.
  • FIG 3 clarifies the flat structure of the flame ports 20.
  • the cross-section of the flame port 20 is similar to the cross-section of a spoon.
  • the width w of the flame port 20 is between 2 mm and 6 mm, preferably between 3 mm and 5 mm. In particular, the width w of the flame port 20 is about 4 mm.
  • the height h of the flame port 20 is between 1 mm and 3 mm, preferably between 1.5 mm and 2.5 mm. In particular, the height h of the flame port 20 is about 2 mm.
  • the ratio between the width and the height of the flame port 20 is between one and three.
  • the transition between the lateral wall to the bottom wall of the flame ports is smooth and without any sharp edges.
  • the lateral walls of the flame ports 20 are inclined, so that the width of the flame ports 20 increases from the bottom up.
  • the bottom wall of the flame ports 20 is marginally convex.
  • the flame ports 20 according to the present invention result in flame shapes, which optimise the heat transfer. No secondary flames are required in order to stabilise the main flames.
  • the gas is completely used for heating a cooking vessel above the gas burner assembly 10. In particular, the flame ports 20 are easy to clean.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
EP17173312.4A 2017-05-29 2017-05-29 Gasbrenneranordnung, vorzugsweise für ein gaskochfeld Withdrawn EP3410011A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17173312.4A EP3410011A1 (de) 2017-05-29 2017-05-29 Gasbrenneranordnung, vorzugsweise für ein gaskochfeld

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17173312.4A EP3410011A1 (de) 2017-05-29 2017-05-29 Gasbrenneranordnung, vorzugsweise für ein gaskochfeld

Publications (1)

Publication Number Publication Date
EP3410011A1 true EP3410011A1 (de) 2018-12-05

Family

ID=58779034

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17173312.4A Withdrawn EP3410011A1 (de) 2017-05-29 2017-05-29 Gasbrenneranordnung, vorzugsweise für ein gaskochfeld

Country Status (1)

Country Link
EP (1) EP3410011A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11421890B2 (en) 2020-12-08 2022-08-23 Whirlpool Corporation Burner cap for a burner assembly

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US873182A (en) * 1907-03-12 1907-12-10 Edward S Springer Gas-burner.
US5335646A (en) * 1993-08-30 1994-08-09 Robertshaw Controls Company Water heater, a burner unit therefor and methods of making the same
WO2002006728A1 (en) * 2000-07-19 2002-01-24 Fisher & Paykel Appliances Limited An improved gas burner
EP1277013B1 (de) * 2000-04-28 2004-09-29 Paolo Moresco Gasbrenner für herd
WO2013091054A1 (en) * 2011-12-21 2013-06-27 Whirlpool S.A. Burner for cooking equipments

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US873182A (en) * 1907-03-12 1907-12-10 Edward S Springer Gas-burner.
US5335646A (en) * 1993-08-30 1994-08-09 Robertshaw Controls Company Water heater, a burner unit therefor and methods of making the same
EP1277013B1 (de) * 2000-04-28 2004-09-29 Paolo Moresco Gasbrenner für herd
WO2002006728A1 (en) * 2000-07-19 2002-01-24 Fisher & Paykel Appliances Limited An improved gas burner
WO2013091054A1 (en) * 2011-12-21 2013-06-27 Whirlpool S.A. Burner for cooking equipments

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11421890B2 (en) 2020-12-08 2022-08-23 Whirlpool Corporation Burner cap for a burner assembly

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