EP0936407A2 - Brûleur à gaz pour une plaque de cuisson - Google Patents

Brûleur à gaz pour une plaque de cuisson Download PDF

Info

Publication number
EP0936407A2
EP0936407A2 EP99101665A EP99101665A EP0936407A2 EP 0936407 A2 EP0936407 A2 EP 0936407A2 EP 99101665 A EP99101665 A EP 99101665A EP 99101665 A EP99101665 A EP 99101665A EP 0936407 A2 EP0936407 A2 EP 0936407A2
Authority
EP
European Patent Office
Prior art keywords
ignition
nozzle
air
gas
mixture
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
EP99101665A
Other languages
German (de)
English (en)
Other versions
EP0936407A3 (fr
EP0936407B1 (fr
Inventor
Hubert Dipl.-Ing.(Fh) Giraud
Werner Haberl
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP0936407A2 publication Critical patent/EP0936407A2/fr
Publication of EP0936407A3 publication Critical patent/EP0936407A3/fr
Application granted granted Critical
Publication of EP0936407B1 publication Critical patent/EP0936407B1/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
    • F23D2207/00—Ignition devices associated with burner

Definitions

  • the invention relates to a gas burner with automatic ignition for hot plates according to the preamble of claim 1.
  • Gas burners are for example from DE-A-41 08 296, 42 03 668 and 41 03 048 known.
  • the object of the invention is to achieve the automatic ignition process to improve the gas burner and in particular to ensure safe ignition, so that the need for multiple ignition attempts is avoided.
  • the gas burner shown in the drawings has a gas-air mixture space 2 between a mushroom-shaped lower part 4 and a cover 6.
  • a plurality of burner nozzles is formed on the peripheral wall 8 of the mixture chamber 2. of which only one is shown in the drawing, which serves as an ignition nozzle 10 and connects the mixture chamber 2 with an ignition chamber 12.
  • the ignition chamber 12 opens its radial inside from the peripheral wall 8, above from part of the cover 6 and bounded below by a part of the lower part 4 and is on its radially outer Side open to the outside environment so that the pilot flame can escape to the outside and also acts as one of the burner flames after the ignition process.
  • spark plug 16 When the gas is turned on, it will automatically switch between the ignition pin 14 and the housing of the spark plug 16 generates a spark, which is the gas-air mixture ignites.
  • other types of igniters can also be used are used, for example glow starter with a glow element instead of one Ignition pin 14.
  • the igniter, in this case the ignition pin 14, is downstream the ignition nozzle 10 arranged in its gas-air flow path, so that the gas-air mixture flow 18 flows over the ignition pin 14.
  • Firing pin 14 formed a projection 20 which from the cover 6 towards the firing pin 14 protrudes and forms a baffle plate, which the gas-air mixture flow of The nozzle 10 swirls and deflects towards the ignition pin 14.
  • the nozzle channel of the ignition nozzle 10 has a short cylindrical one at the upstream beginning Section and is then funnel-like to its downstream end expanded so that it acts as a diffuser and "tears open" the gas-air mixture.
  • This diffuser effect the ignition nozzle 10 and the baffle plate 20 have a better ignition of the Mixtures on the firing pin 14 result and avoids that ignited several times in vain must be switched on when the gas burner is switched on.
  • the gas is the mixture chamber 2 from a gas nozzle 22 via a central pipe socket 24 supplied and sucks between the gas nozzle 22 and the pipe socket 24th Air from the outside environment, so-called primary air 26.
  • primary air 26 Serves for combustion not only this primary air 26, but also the ambient air in the area of the burner nozzles, of which only the ignition nozzle 10 is shown.
  • the burner nozzles 10 in the plane of the ignition nozzle 10 can have further gas outlet openings below them 28 are provided, through which from the mixture space 2 gas-air mixture can escape to form auxiliary flames when high heat is required.
  • the drawing shows only one.
  • This air intake duct is in contact with the outside air on the one hand and opens on the other hand a location between the ignition nozzle 10 and the spark plug 16 in the ignition chamber 12.
  • the downstream portion of the air intake duct 30 is below one Direction in the ignition chamber 12 that the intake air 32 at a between the ignition nozzle 10 and the ignition pin 14 located in the gas-air mixture flow the ignition nozzle 10 is sucked.
  • the air intake duct is preferably 30 aligned so that at least part of the additional air 32 directly on the Firing pin 14 is directed.
  • the additional outside air 32 of the air intake duct 30 is reduced in the area of the ignition pin 14 the gas content of the mixture.
  • the additional air of the air intake duct 30 has the better the effect with the gas-air flow of the ignition nozzle 10 is mixed.
  • the mixing is caused by the diffusion effect of the ignition nozzle 10 and significantly improved by the swirling on the baffle plate 20.
  • the air intake duct 30 is inclined on the way at an angle of less than 90 ° of the mixture stream 18 directed to the ignition nozzle 10, the angular tip in the direction of flow of the mixture flow shows.
  • the peripheral wall 8 of the gas space 2 is by an annular projection Cover 6 formed, but other embodiments are possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Lighters Containing Fuel (AREA)
EP99101665A 1998-02-11 1999-02-04 Brûleur à gaz pour une plaque de cuisson Expired - Lifetime EP0936407B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19805560 1998-02-11
DE19805560A DE19805560A1 (de) 1998-02-11 1998-02-11 Gasbrenner für Kochstellen

Publications (3)

Publication Number Publication Date
EP0936407A2 true EP0936407A2 (fr) 1999-08-18
EP0936407A3 EP0936407A3 (fr) 2000-02-09
EP0936407B1 EP0936407B1 (fr) 2003-06-11

Family

ID=7857385

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99101665A Expired - Lifetime EP0936407B1 (fr) 1998-02-11 1999-02-04 Brûleur à gaz pour une plaque de cuisson

Country Status (4)

Country Link
EP (1) EP0936407B1 (fr)
AT (1) ATE242857T1 (fr)
DE (2) DE19805560A1 (fr)
ES (1) ES2200413T3 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2153988A (en) * 1984-02-03 1985-08-29 Thorn Emi Domestic Appliances Gas burner
US5149262A (en) * 1991-07-19 1992-09-22 Robertshaw Controls Company Burner construction, igniter assembly therefor
US5492469A (en) * 1995-05-04 1996-02-20 Eaton Corporation Gaseous fuel burner and dual probe spark electrode therefor
US5690483A (en) * 1996-07-17 1997-11-25 Eaton Coporation Gaseous fuel burner

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2153988A (en) * 1984-02-03 1985-08-29 Thorn Emi Domestic Appliances Gas burner
US5149262A (en) * 1991-07-19 1992-09-22 Robertshaw Controls Company Burner construction, igniter assembly therefor
US5492469A (en) * 1995-05-04 1996-02-20 Eaton Corporation Gaseous fuel burner and dual probe spark electrode therefor
US5690483A (en) * 1996-07-17 1997-11-25 Eaton Coporation Gaseous fuel burner

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Woche 199625, Derwent Publications Ltd., London, GB; Klasse Q73, AN 1996-247718, XP002900735 & JP 08 100910 A (HAMAN KK) 16. April 1996, *

Also Published As

Publication number Publication date
EP0936407A3 (fr) 2000-02-09
DE59905898D1 (de) 2003-07-17
DE19805560A1 (de) 1999-08-12
ES2200413T3 (es) 2004-03-01
EP0936407B1 (fr) 2003-06-11
ATE242857T1 (de) 2003-06-15

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