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WO1993008427A1 - Gas-heated vitroceramic hotplate - Google Patents

Gas-heated vitroceramic hotplate Download PDF

Info

Publication number
WO1993008427A1
WO1993008427A1 PCT/FR1992/000975 FR9200975W WO9308427A1 WO 1993008427 A1 WO1993008427 A1 WO 1993008427A1 FR 9200975 W FR9200975 W FR 9200975W WO 9308427 A1 WO9308427 A1 WO 9308427A1
Authority
WO
WIPO (PCT)
Prior art keywords
main
burner
gas
auxiliary
perforated plate
Prior art date
Application number
PCT/FR1992/000975
Other languages
French (fr)
Inventor
Alain Grimaud
Original Assignee
Clv Production
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 Clv Production filed Critical Clv Production
Priority to JP5507491A priority Critical patent/JPH06506293A/en
Publication of WO1993008427A1 publication Critical patent/WO1993008427A1/en

Links

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
    • F24C3/12—Arrangement or mounting of control or safety devices
    • F24C3/126—Arrangement or mounting of control or safety devices on ranges
    • 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
    • F24C3/04—Stoves or ranges for gaseous fuels with heat produced wholly or partly by a radiant body, e.g. by a perforated plate
    • F24C3/06—Stoves or ranges for gaseous fuels with heat produced wholly or partly by a radiant body, e.g. by a perforated plate without any visible flame
    • F24C3/067—Ranges

Definitions

  • the information relates to a hob
  • each burner includes one or more perforated plates, generally made of ceramic, in which micro-holes are formed through which flows a
  • the air-gas fuel mixture is ignited at the outlet of the perforated plates, to form very small flames which ensure the heating of the ceramic hob on which the cookware can be placed.
  • each of the burners is ensured by one or more electrodes associated with this burner when the electrodes are energized by the corresponding electronic circuit. Otherwise,
  • this electronic circuit makes it possible to apply a current in the ionized part of the flame normally formed at the outlet of the corresponding burner and to measure the intensity of this current in order to detect a possible extinction of the burner.
  • the electronic circuit associated with this burner automatically controls the closing of a solenoid valve placed in the gas supply circuit of this burner and which also regulates the burner when the latter is on. .
  • the gas-ceramic hobs made in this way have certain drawbacks, mainly due to the need to associate an electron circuit with each of the burners. This leads in particular to give the hob a large size and a high cost.
  • the use of relatively complex electronic systems increases the risk of device breakdowns and makes adjustments relatively delicate.
  • the relatively complex structure of existing appliances is mainly due to the fact that it has not been possible until now to install a pilot light near each of the burners of the vitro- gas-heated ceramics, since the space between the three-ceramic radiant plate which receives the kitchen utensils and the burners is a space in which the oxygen necessary for combustion is practically absent.
  • the subject of the invention is precisely a gas-heated vitro-ceramic hob, the original design of which enables it to simplify the electronic cir ⁇ cuit, which leads to a substantial reduction in its size and cost while increasing notably its reliability and by facilitating the adjustments.
  • the cooking table according to the invention uses an auxiliary burner, forming a burner, the structure of which is comparable to that of the main burners of the cooking table. More specifically, it is proposed in accordance with the invention a vitro-ceramic hob, heated with gas, comprising:
  • At least one main burner placed below the ceramic hob and comprising at least a first perforated plate, made of refractory material, a first mixing chamber placed below said plate, and first means for injecting a air-gas fuel mixture in this chamber; - A main gas supply circuit of the means * i nj ect i on;
  • the ignition means comprise an auxiliary burner, forming a veil, opening at least partially above the main burner and comprising a second perforated plate, made of refractory material, a second adjacent mixing chamber to the second wafer, and second means for injecting the air-gas fuel mixture into this.
  • the ignition means further comprising an auxiliary gas supply circuit of the second injection means.
  • the main circuit and the auxiliary circuit are connected to a gas inlet pipe through the same tap which includes closing means actuated automatically when a flame absence signal is emitted. by a flame detector placed in front of the auxiliary burner.
  • a regulating device with adjustable temperature controls a solenoid valve placed in the main circuit.
  • This regulating device comprises for example a thermostat mounted on a movable member not fixed to the ceramic hob, so that the thermostat is in contact with the latter.
  • the perforated plate of the auxiliary burner opens immediately above the perforated plate of the main burner, in a plane facing the first injection means.
  • the hob comprises two main burners opening out in the same horizontal plane and supplied with gas by the same main circuit comprising a bifurcat on, and a single auxiliary burner having two ends which- open immediately above the perforated plate of the main burners.
  • the single figure schematically illustrates a ceramic hob, heated with gas.
  • a ceramic hob heated with gas.
  • the two main burners 10a and 10b as well as the auxiliary burner 12 are placed below a horizontal ceramic-glass plate 14, on which the kitchen utensils to be heated can be placed.
  • the vitro-ceramic plate 14 is fixed by its peripheral edge on a frame 16 which is only very partially shown in the figure.
  • This chassis 16 provides support for the ceramic-glass plate 14 and is used to house the main burners 10a and 10b as well as the auxiliary burner 12.
  • the intermediate space between the vi-ro-ceramic plate - only 14 and The burners do not communicates with the outside only through an orifice (not shown) formed at the rear of the ceramic hob, for the discharge of burnt gases.
  • the two main burners 10a and 10b are identical and have a top view in the form of two rectangles whose long sides are parallel and separated by a relatively narrow interval.
  • the burner 10a comprises one or more horizontal perforated plates 18a, made of a refractory material such as a ceramic, in which the micro holes 20a are formed.
  • This perforated plate 18a which in this case has a rectangular shape, is placed above a mixing chamber 22a, delimited by ai lelles by a body 24a which closes the chamber 22a and supports the perforated plate 18a.
  • the body 24a of each of the burners is itself supported by the chassis 16.
  • the mixing chamber 22a is supplied with an air-gas combustible mixture by an intake tube 26a which internally has a venturi tube, which allows the introduction of the fresh air entrained by the inlet of gas into the venturi. , and mixes.
  • This intake tube 26a opens into the chamber 22a in a substantially horizontal direction, parallel to the long side of the rectangle formed by the perforated plate 18a. More specifically, the intake tube 26a opens into the chamber 22a below a distribution grid 28a which has perforations 30a by which the aii-gas mixture introduced by the tube 26a in the chamber 22a is distributed sensi ⁇ uniformly uniform over the entire surface of the perforated plate 18a.
  • a gas injector At the entrance to each of the intake tubes 26a and 26b of the main burners 10a and 10b is placed a gas injector. These injectors are illustrated diagrammatically at 32a and 32b in the figure. The injectors 32a and 32b are placed at the ends of two branches 34a and 34b of a common main circuit 34. This main circuit 34 communicates with a gas supply pipe 36 through a tap 38 allowing interruption the gas supply to the main circuit 34.
  • Each of the two branches 34a and 34b of the cooked circuit 34 comprises a solenoid valve 40a, 40b making it possible to supply the main burners 10a and 10b, respectively.
  • each of the solenoid valves 40a and 40b is electrically connected to an adjustable temperature regulation device comprising a thermostat 42a, 42b, as well as an adjustment button 43a, 43b of this thermostat, placed on the face front of the cooktop.
  • the electrical connection between each of the electromagnets 40a and 40b and the ther ⁇ mostat 42a, 42b which corresponds to it is provided by an electrical conductor 44a, 44b.
  • each of the thermostats 42a and 42b is normally in contact with the underside of the ceramic-glass plate 14, in a location situated above the burner 10a, 10b corresponding.
  • the two thermostats are mounted on movable members (not shown) not attached to the ceramic-glass plate 14, which facilitates replacement.
  • the ignition of each of the main burners 10a and 10b is provided by the common auxiliary burner 12 which plays the role of a pilot burner.
  • this auxiliary burner 12 has a structure similar to that of the main burners 10a and 10b, while being of reduced dimensions compared to the latter.
  • the auxiliary burner 12 comprises a perforated plate 46, made of a refractory material such as a ceramic, and in which are formed micro-holes similar to micro-holes 20a, 20b of plates 18a, 18b.
  • the plate 46 has an elongated rectangular shape and it is arranged vertically, so as to open at its ends above each of the main burners 10b and, in its central part, opposite the space separating the main burners. More precisely, the microholes formed in the perforated plate 46 open out into a plane which is oriented substantially perpen ⁇ dicularly in the direction according to which the fuel air-gas mixture enters the chambers 22 of the main burners by the intake tubes 26a. and 26b, close to the sides of the burners 10a and 10b opposite the intake tubes 26a and 26b, so that the fuel mixture can be ignited as quickly as possible by the flames normally present at the outlet of the auxiliary burner 12.
  • the auxiliary burner 12 also comprises, behind the perforated plate 46, a mixing chamber (not shown) delimited by an auxiliary burner body 48 supported by the frame 16 of the apparatus.
  • An inlet tube 50 of the air-gas fuel mixture in the mixing chamber delimited by the auxiliary burner body 48 opens into this chamber, for example in front of the perforated plate 46 as illustrated in the figure.
  • This intake tube 50 has internally, like the intake tubes 26a and 26b, the shape of a venturi tube. It allows air to be introduced into the mixing chamber when gas is in ected at the inlet of the tube 50 by an inverter 52 placed at the end of an auxiliary gas supply circuit 54 .
  • this auxiliary circuit 54 is connected to the gas inlet pipe 36 through the same tap 38 as the main circuit 34.
  • the auxiliary burner 12 opens in its central part in front of a thermocouple 56 which is connected to the tap 38 by an electrical conductor 58.
  • the thermocouple 56 sends an electrical signal which keeps the safety valve (not shown) of tap 38 open.
  • the user opens the valve 38, which has the immediate effect of injecting a fuel air-gas mixture into the auxiliary burner 12 and igniting this mixture at the outlet. of the perforated plate 46 using any known means (not shown).
  • the thermocouple 56 sends to the net 38 an electrical signal now open the supply of gas to the main circuit 34.
  • the regulating valves 40a and 40b are then normally closed since the temperature adjustment buttons 43a, 43b which are on the front face of the device have normally been returned to their closed position at the end of their previous use.
  • the device is therefore in its standby position, in which an immediate immediate ignition of one and / or the other of the burners 10a and 10b can be carried out.
  • This ignition is achieved by acting on the temperature adjustment buttons 43a, 43b associated with the thermostats 42a and 42b, so as to open the electro valves 40a and 40b until the displayed temperature is obtained.
  • the foregoing description clearly shows the particularly simple, space-saving and inexpensive nature of the hob conforming to the invention. This simplicity also has the consequence of increasing reliability compared to existing cooktops comprising complex electronic circuits.
  • the safety function is ensured here directly by the tap 38, connected for this purpose to the flame detection thermocouple 56.
  • the electromagnetic valves 40a and 40b therefore only have a regulating function for the main burners associated with them.
  • the main burners 10a and 10b, as well as the auxiliary burner 12 are atmospheric burners with a high rate of primary aeration which have a high flame temperature favoring a fast ignition.
  • the particular arrangement of the auxiliary burner 12 and of the intake tubes 26a and 26b suppresses the ignition delay, a homogeneous distribution of the flames of each of the main burners being however ensured by the distribution grids 28.
  • the invention is not limited to the embodiment which has just been described by way of example, but covers all its variants.
  • the hob according to the invention could have only one main burner associated with an auxiliary burner for forming a pilot light.

Landscapes

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

Abstract

A vitroceramic hotplate, gas-heated by at least one main burner (10a, 10b), comprises an auxiliary burner (12) as a pilot light similar in structure to the main burners. Gas is supplied to the main and auxiliary burners via the same tap (38) which closes automatically when the auxiliary burner goes out. The outlet from the auxiliary burner (12) is in a plane which faces the inlet pipes (26a, 26b) of the air/gas combustible mixture in the main burners (10a, 10b).

Description

TABLE DE CUISSON VITRO-CERAM IQUE, CHAUFFEE AU GAZ, VITRO-CERAM IQUE HOB, GAS HEATED,
L'in ention concerne une table de cuissonThe information relates to a hob
«* vi t ro-cérami ue, dans laquelle le chauffage de la plaque 5 vitro-céramique sur laquelle sont posés les ustensi les de cuisine est réalisé par des brûleurs à gaz."* Vi t ro-cerami ue, in which the heating of the 5 ceramic hob on which the kitchen utensils are placed is carried out by gas burners.
Des tables de cuisson vi t ro-cérami que compor¬ tant un ou plusieurs brûleurs à gaz placés en dessous d'une plaque vitro-céramique ont déjà été proposés dansVi t ro-ceramic hobs that include one or more gas burners placed below a ceramic hob have already been proposed in
10 le domaine de la cuisine professionnelle.10 the field of professional cooking.
Dans ces tables de cuisson, chaque brûleur comporte une ou plusieurs plaquettes perforées, généra¬ lement réalisées en céramique, dans lesquelles sont formés des microtrous au travers desquels s'écoule unIn these cooktops, each burner includes one or more perforated plates, generally made of ceramic, in which micro-holes are formed through which flows a
15 mélange combustible air-gaz provenant d'une chambre de mélange placée i médiatement en dessous des plaquettes perforées. Le gaz est introduit dans cette chambre par un injecteur placé à l'entrée d'un tube de venturi grâce auquel l'air nécessaire à la combustion est entraîné15 fuel air-gas mixture coming from a mixing chamber placed i below the perforated plates. The gas is introduced into this chamber by an injector placed at the inlet of a venturi tube through which the air necessary for combustion is entrained
20 par le gaz à l'intérieur de la chambre. Le mélange combustible air-gaz est enflammé à la sortie des pla¬ quettes perforées, pour former de très petites flammes qui assurent le chauffage de la plaque vitro-céramique sur laquelle peuvent être posés les ustensi les de cui -20 by the gas inside the chamber. The air-gas fuel mixture is ignited at the outlet of the perforated plates, to form very small flames which ensure the heating of the ceramic hob on which the cookware can be placed.
25 sine.25 sine.
Dans les tables de cuisson vitro-céramique chauffées au gaz existant actuellement, un circuit élec¬ tronique relativement complexe est associé à chacun des brûleurs, afin notamment d'assurer l'allumage de ceIn currently heated gas-ceramic hobs, a relatively complex electronic circuit is associated with each of the burners, in particular to ensure the ignition of this
30 brûleur et de détecter son éventuelle extinction. Plus précisément, l'allumage de chacun des brûleurs est assu¬ ré par une ou plusieurs électrodes associées à ce brû¬ leur lorsque Les électrodes sont mises sous tension par le circuit électronique correspondant. Par ailleurs,30 burner and to detect its possible extinction. More precisely, the ignition of each of the burners is ensured by one or more electrodes associated with this burner when the electrodes are energized by the corresponding electronic circuit. Otherwise,
35 ce circuit électronique permet d'appliquer un courant dans la partie ionisée de la flamme normalement formée à la sortie du brûleur correspondant et de mesurer l'in¬ tensité de ce courant afin de détecter une éventuelle extinction du brûleur. Dans ce dernier cas, le circuit électronique associé à ce brûleur commande automatique¬ ment la fermeture d'une électrovanne placée dans le circuit d'alimentation en gaz de ce brûleur et qui assure par a lleurs la régulation du brûleur, lorsque ce dernier est allumé. Les tables de cuisson vitro-céramique chauf¬ fées au gaz réalisées de cette manière présentent cei— tains inconvénients, principalement en raison de La nécess té d'assoc er un circuit électron que à chacun des brûleurs. Cela conduit notamment à donner à la table de cuisson un encombrement important et un coût élevé. De plus, le recours à des systèmes électroniques relati¬ vement complexes accroît le risque de pannes de l'appa¬ reil et rend les réglages relativement délicats. IL est à noter que la structure relativement complexe des appareils existants a principalement pour origine le fait qu'il n'a pas été possible jusqu'à pré¬ sent d'implanter une veilleuse à proximité de chacun des brûleurs des tables de cuisson vitro-céramique chauffées au gaz, étant donné que l'espace situé entre la plaque radiante v tro-céramique qui reçoit les usten¬ siles de cuisine et les brûleurs est un espace dans lequel l'oxygène nécessaire à la combustion est prati¬ quement absent. L'invention a précisément pour objet une table de cuisson vitro-céramique chauffée au gaz, dont la conception originale lui permet de simplifier le cir¬ cuit électronique, ce qui conduit à en réduire sensible¬ ment l'encombrement et le coût tout en augmentant de façon notable sa fiabilité et en facilitant les régla¬ ges. Pour parvenir à ce résultat, la table de cuis¬ son selon l'invention uti lise un brûleur auxi liaire, formant vei lleuse, dont la structure est comparable à celle des brûleurs principaux de la table de cuisson. De façon plus précise, i l est proposé confor¬ mément à l'invention une table de cuisson vitro-cérami¬ que, chauffée au gaz, comprenant :35 this electronic circuit makes it possible to apply a current in the ionized part of the flame normally formed at the outlet of the corresponding burner and to measure the intensity of this current in order to detect a possible extinction of the burner. In the latter case, the electronic circuit associated with this burner automatically controls the closing of a solenoid valve placed in the gas supply circuit of this burner and which also regulates the burner when the latter is on. . The gas-ceramic hobs made in this way have certain drawbacks, mainly due to the need to associate an electron circuit with each of the burners. This leads in particular to give the hob a large size and a high cost. In addition, the use of relatively complex electronic systems increases the risk of device breakdowns and makes adjustments relatively delicate. It should be noted that the relatively complex structure of existing appliances is mainly due to the fact that it has not been possible until now to install a pilot light near each of the burners of the vitro- gas-heated ceramics, since the space between the three-ceramic radiant plate which receives the kitchen utensils and the burners is a space in which the oxygen necessary for combustion is practically absent. The subject of the invention is precisely a gas-heated vitro-ceramic hob, the original design of which enables it to simplify the electronic cir¬ cuit, which leads to a substantial reduction in its size and cost while increasing notably its reliability and by facilitating the adjustments. To achieve this result, the cooking table according to the invention uses an auxiliary burner, forming a burner, the structure of which is comparable to that of the main burners of the cooking table. More specifically, it is proposed in accordance with the invention a vitro-ceramic hob, heated with gas, comprising:
- une plaque vitro-céramique horizontale ;- a horizontal ceramic hob;
- au moins un brûleur principal placé en dessous de la plaque vitro-céramique et comportant au moins une première plaquette perforée, en matériau réfractaire, une première chambre de mélange placée en dessous de ladite plaquette, et des premiers moyens d'injection d'un mélange combustible air-gaz dans cette chambre ; - un circuit principal d'alimentation en gaz des moyens d * i nj ect i on ;- At least one main burner placed below the ceramic hob and comprising at least a first perforated plate, made of refractory material, a first mixing chamber placed below said plate, and first means for injecting a air-gas fuel mixture in this chamber; - A main gas supply circuit of the means * i nj ect i on;
- des moyens d'allumage du mélange air-gaz à la sortie du brûleur principal ; caractérisée par le fait que les moyens d'allumage comprennent un brûleur auxi liaire, formant vei lleuse, débouchant au moins en partie au-dessus du brûleur prin¬ cipal et comportant une deuxième plaquette perforée, en matériau réfractaire, une deuxième chambre de mélange adjacente à la deuxième plaquette, et des deuxièmes moyens d'injection du mélange combustible air-gaz dans cette . deuxi ème chambre, les moyens d'allumage comprenant de plus un circuit auxi liaire d'alimentation en gaz des deuxièmes moyens d'injection.- means for igniting the air-gas mixture at the outlet of the main burner; characterized in that the ignition means comprise an auxiliary burner, forming a veil, opening at least partially above the main burner and comprising a second perforated plate, made of refractory material, a second adjacent mixing chamber to the second wafer, and second means for injecting the air-gas fuel mixture into this. second chamber, the ignition means further comprising an auxiliary gas supply circuit of the second injection means.
Avantageusement, le circuit principal et le circuit auxi liaire sont reliés à une canalisation d'ar¬ rivée de gaz au travers d'un même robinet qui comporte des moyens de fermeture actionnés automatiquement lors¬ qu'un signal d'absence de flamme est émis par un détec¬ teur de flamme placé devant le brûleur auxi liaire. De préférence, un dispositif de régulation de température réglable pilote une électrovanne placée dans le circuit principal. Ce dispositif de régulation comporte par exemple un thermostat monté sur un organe mobile non fixé à la plaque vitro-céramique, de telle sorte que le thermostat soit au contact de cette der¬ nière.Advantageously, the main circuit and the auxiliary circuit are connected to a gas inlet pipe through the same tap which includes closing means actuated automatically when a flame absence signal is emitted. by a flame detector placed in front of the auxiliary burner. Preferably, a regulating device with adjustable temperature controls a solenoid valve placed in the main circuit. This regulating device comprises for example a thermostat mounted on a movable member not fixed to the ceramic hob, so that the thermostat is in contact with the latter.
Pour faciliter l'allumage du brûleur princi¬ pal, la plaquette perforée du brûleur auxiliaire débou¬ che immédiatement au-dessus de la plaquette perforée du brûleur principal, dans un plan faisant face aux premiers moyens d'injection.To facilitate the ignition of the main burner, the perforated plate of the auxiliary burner opens immediately above the perforated plate of the main burner, in a plane facing the first injection means.
Afin que la distribution du mélange air-gaz sur toute la surface de la plaquette perforée soit sensiblement uniforme, une grille de répartition de ce mélange est placée dans la première chambre de mélange, sensiblement parallèlement à la plaquette perforée. En outre, l'évacuation des gaz de combustion s'effectue par l'arrière de La table de cuisson, par un orifice approprié. Selon un mode de réalisation préféré de l'in¬ vention, La table de cuisson comprend deux brûleurs principaux débouchant dans un même plan horizontal et alimentés en gaz par un même circuit principal compor¬ tant une bifurcat on, et un seul brûleur auxiliaire ayant deux extrémités qui- débouchent immédiatement au-dessus de la plaquette perforée des brûleurs princi¬ paux.So that the distribution of the air-gas mixture over the entire surface of the perforated plate is substantially uniform, a distribution grid of this mixture is placed in the first mixing chamber, substantially parallel to the perforated plate. In addition, the combustion gases are evacuated from the rear of the hob, through an appropriate orifice. According to a preferred embodiment of the invention, the hob comprises two main burners opening out in the same horizontal plane and supplied with gas by the same main circuit comprising a bifurcat on, and a single auxiliary burner having two ends which- open immediately above the perforated plate of the main burners.
On décrira à présent, à titre d'exemple non limitatif, un mode de réalisation préféré de l'invention en se référant au dessin annexé, dans Lequel La figure unique est une vue en perspective éclatée représentant une table de cuisson vi ro-céramique chauffée au gaz, réalisée conformément à l'invention.A preferred embodiment of the invention will now be described, by way of nonlimiting example, with reference to the accompanying drawing, in which The single figure is an exploded perspective view showing a heated ceramic hob gas, produced in accordance with the invention.
La figure unique illustre de façon schématique une table de cuisson vitro-céramique, chauffée au gaz. comportant deux brûleurs principaux 10a et 10b dont l'allumage est assuré par un même brûleur auxi liai re 12 formant vei lleuse. Les deux brûleurs principaux 10a et 10b ainsi que Le brûleur auxi liaire 12 sont placés en dessous d'une plaque vitro-céramique 14 horizontale, sur laquelle peuvent être déposés les ustensi les de cuisine à chauffer .The single figure schematically illustrates a ceramic hob, heated with gas. comprising two main burners 10a and 10b, the ignition of which is ensured by the same auxiliary burner 12 forming a burner. The two main burners 10a and 10b as well as the auxiliary burner 12 are placed below a horizontal ceramic-glass plate 14, on which the kitchen utensils to be heated can be placed.
De façon plus précise, La plaque vitro-cérami¬ que 14 est fixée par son bord périphérique sur un châs- sis 16 qui n'est représenté que très partiellement sur la figure. Ce châssis 16 assure le supportage de la plaque vitro-céramique 14 et sert à loger les brûleurs principaux 10a et 10b ainsi que le brûleur auxi liaire 12. L'espace intermédiaire entre la plaque vi t ro-cérami - que 14 et Les brûleurs ne communique avec l'extérieur que par un orifice (non représenté) formé à L'arrière de la plaque vitro-céramique, pour l'avacuation des gaz brûlés .More precisely, the vitro-ceramic plate 14 is fixed by its peripheral edge on a frame 16 which is only very partially shown in the figure. This chassis 16 provides support for the ceramic-glass plate 14 and is used to house the main burners 10a and 10b as well as the auxiliary burner 12. The intermediate space between the vi-ro-ceramic plate - only 14 and The burners do not communicates with the outside only through an orifice (not shown) formed at the rear of the ceramic hob, for the discharge of burnt gases.
Les deux brûleurs principaux 10a et 10b sont identiques et présentent en vue de dessus la forme de deux rectangles dont Les grands côtés sont parallèles et séparés par un intervalle relativement étroit.The two main burners 10a and 10b are identical and have a top view in the form of two rectangles whose long sides are parallel and separated by a relatively narrow interval.
La description qui va à présent être faite du brûleur 10a s'applique également au brûleur 10b, Les références affectées de l'indice j-_ étant simplement remplacées par les mêmes références, affectées de l'in¬ dice b_.The description which will now be made of the burner 10a also applies to the burner 10b, the references assigned to the index j-_ being simply replaced by the same references, assigned to the index b_.
Le brûleur 10a comporte une ou plusieurs pla¬ quettes perforées horizontales 18a, réalisées en un matériau réfractaire tel qu'une céramique, dans lesquel¬ les sont formés des microtrous 20a. Cette plaquette perforée 18a, qui présente dans ce cas une forme rectan¬ gulaire, est placée au-dessus d'une chambre de mélange 22a, délimitée par ai lleurs par un corps 24a qui ferme la chambre 22a et supporte la plaquette perforée 18a. Le corps 24a de chacun des brûleurs est lui-même suppor¬ té par le châssis 16.The burner 10a comprises one or more horizontal perforated plates 18a, made of a refractory material such as a ceramic, in which the micro holes 20a are formed. This perforated plate 18a, which in this case has a rectangular shape, is placed above a mixing chamber 22a, delimited by ai lleurs by a body 24a which closes the chamber 22a and supports the perforated plate 18a. The body 24a of each of the burners is itself supported by the chassis 16.
La chambre de mélange 22a est alimentée en mélange combustible air-gaz par un tube d'admission 26a qui présente intérieurement un tube de venturi, qui permet l'introduction de l'air frais entraîné par l'ar¬ rivée de gaz dans le venturi, et effectue le mélange. Ce tube d'admission 26a débouche dans la chambre 22a selon une direction sensiblement horizontale, parallèle- ment au grand côté du rectangle formé par la plaquette perforée 18a. Plus précisément, le tube d'admission 26a débouche dans la chambre 22a en dessous d'une grille de répartition 28a qui comporte des perforations 30a grâce auxquelles le mélange aii—gaz introduit par le tube 26a dans la chambre 22a est réparti de façon sensi¬ blement uniforme sur toute la surface de la plaquette perforée 18a.The mixing chamber 22a is supplied with an air-gas combustible mixture by an intake tube 26a which internally has a venturi tube, which allows the introduction of the fresh air entrained by the inlet of gas into the venturi. , and mixes. This intake tube 26a opens into the chamber 22a in a substantially horizontal direction, parallel to the long side of the rectangle formed by the perforated plate 18a. More specifically, the intake tube 26a opens into the chamber 22a below a distribution grid 28a which has perforations 30a by which the aii-gas mixture introduced by the tube 26a in the chamber 22a is distributed sensi¬ uniformly uniform over the entire surface of the perforated plate 18a.
A l'entrée de chacun des tubes d'admission 26a et 26b des brûleurs principaux 10a et 10b est placé un injecteur de gaz. Ces injecteurs sont illustrés sché- matiquement en 32a et 32b sur la figure. Les injecteurs 32a et 32b sont placés aux extrémités de deux branches 34a et 34b d'un circuit principal commun 34. Ce circuit principal 34 communique avec une tuyauterie 36 d'arrivée de gaz au travers d'un robinet 38 permettant d'interrom¬ pre l'alimentation en gaz du circuit principal 34.At the entrance to each of the intake tubes 26a and 26b of the main burners 10a and 10b is placed a gas injector. These injectors are illustrated diagrammatically at 32a and 32b in the figure. The injectors 32a and 32b are placed at the ends of two branches 34a and 34b of a common main circuit 34. This main circuit 34 communicates with a gas supply pipe 36 through a tap 38 allowing interruption the gas supply to the main circuit 34.
Chacune des deux branches 34a et 34b du cir¬ cuit 34 comporte une électrovanne 40a, 40b permettant d'assurer l'alimentation des brûleurs principaux 10a et 10b, respectivement. A cet effet, chacune des élec¬ trovannes 40a et 40b est reliée électriquement à un dispositif de régulation de température réglable compor¬ tant un thermostat 42a, 42b, ainsi qu'un bouton de réglage 43a, 43b de ce thermostat, placé sur la face avant de la table de cuisson. La liaison électrique entre chacune des é Lect rovannes 40a et 40b et le ther¬ mostat 42a, 42b qui lui correspond est assurée par un conducteur électrique 44a, 44b.Each of the two branches 34a and 34b of the cooked circuit 34 comprises a solenoid valve 40a, 40b making it possible to supply the main burners 10a and 10b, respectively. To this end, each of the solenoid valves 40a and 40b is electrically connected to an adjustable temperature regulation device comprising a thermostat 42a, 42b, as well as an adjustment button 43a, 43b of this thermostat, placed on the face front of the cooktop. The electrical connection between each of the electromagnets 40a and 40b and the ther¬ mostat 42a, 42b which corresponds to it is provided by an electrical conductor 44a, 44b.
Avantageusement, chacun des thermostats 42a et 42b se trouve normalement en contact avec la face inférieure de la plaque vitro-céramique 14, en un empla¬ cement situé au-dessus du brûleur 10a, 10b correspon¬ dant. De plus, les deux thermostats sont montés sur des organes mobi les (non représentés) non fixés à la plaque vitro-céramique 14, ce qui en faci lite le remplacement. Comme on l'a mentionné précédemment, L'alluma¬ ge de chacun des brûleurs principaux 10a et 10b est assuré par le brûleur auxi liaire commun 12 qui joue le rôle d'une vei lleuse. Pour remédier au problème posé par L'absence d'air dans L'espace situé entre la plaque vitro-céramique 14 et Les brûleurs principaux 10a et 10b, ce brûleur auxi liaire 12 présente une structure analogue à celle des brûleurs principaux 10a et 10b, tout en étant de dimensions réduites par rapport à ces derniers.Advantageously, each of the thermostats 42a and 42b is normally in contact with the underside of the ceramic-glass plate 14, in a location situated above the burner 10a, 10b corresponding. In addition, the two thermostats are mounted on movable members (not shown) not attached to the ceramic-glass plate 14, which facilitates replacement. As previously mentioned, the ignition of each of the main burners 10a and 10b is provided by the common auxiliary burner 12 which plays the role of a pilot burner. To remedy the problem posed by the absence of air in the space situated between the ceramic-ceramic plate 14 and the main burners 10a and 10b, this auxiliary burner 12 has a structure similar to that of the main burners 10a and 10b, while being of reduced dimensions compared to the latter.
De façon plus précise, le brûleur auxi liaire 12 comporte une plaquette perforée 46, réalisée en un matériau réfractaire tel qu'une céramique, et dans la¬ quelle sont formés des microtrous analogues aux micro- trous 20a, 20b des plaquettes 18a, 18b. La plaquette 46 présente une forme rectangulaire allongée et elle est disposée verticalement, de façon à déboucher à ses extrémités au-dessus de chacun des brûleurs principaux 10b et, dans sa partie centrale, en face de l'espace séparant les brûleurs principaux. Plus précisément, les microtrous formés dans La plaquette perforée 46 débou¬ chent dans un plan qui est orienté sensiblement perpen¬ diculairement à La direction selon Laquelle le mélange combustible air-gaz pénètre dans les chambres 22 des brûleurs principaux par les tubes d'admission 26a et 26b, à proximité des côtés des brûleurs 10a et 10b opposés aux tubes d'admission 26a et 26b, de telle sorte que le mélange combustible puisse être enflammé aussi rapidement que possible par les flammes normalement présentes à la sortie du brûleur auxiliaire 12.More precisely, the auxiliary burner 12 comprises a perforated plate 46, made of a refractory material such as a ceramic, and in which are formed micro-holes similar to micro-holes 20a, 20b of plates 18a, 18b. The plate 46 has an elongated rectangular shape and it is arranged vertically, so as to open at its ends above each of the main burners 10b and, in its central part, opposite the space separating the main burners. More precisely, the microholes formed in the perforated plate 46 open out into a plane which is oriented substantially perpen¬ dicularly in the direction according to which the fuel air-gas mixture enters the chambers 22 of the main burners by the intake tubes 26a. and 26b, close to the sides of the burners 10a and 10b opposite the intake tubes 26a and 26b, so that the fuel mixture can be ignited as quickly as possible by the flames normally present at the outlet of the auxiliary burner 12.
Par ailleurs, le brûleur auxiliaire 12 compor¬ te également, en arrière de la plaquette perforée 46, une chambre de mélange (non représentée) délimitée par un corps de brûleur auxiliaire 48 supporté par Le châs- sis 16 de L'appareil. Un tube d'admission 50 du mélange combustible air-gaz dans La chambre de mélange délimitée par le corps de brûleur auxiliaire 48 débouche dans cette chambre, par exemple en face de la plaquette per¬ forée 46 comme l'illustre la figure. Ce tube d'admission 50 présente intérieurement, comme les tubes d'admission 26a et 26b, la forme d'un tube de venturi. Il permet d'introduire de L'air dans la chambre de mélange lorsque du gaz est in ecté à l'entrée du tube 50 par un in ec¬ teur 52 placé à l'extrémité d'un circuit auxiliaire 54 d'alimentation en gaz.Furthermore, the auxiliary burner 12 also comprises, behind the perforated plate 46, a mixing chamber (not shown) delimited by an auxiliary burner body 48 supported by the frame 16 of the apparatus. An inlet tube 50 of the air-gas fuel mixture in the mixing chamber delimited by the auxiliary burner body 48 opens into this chamber, for example in front of the perforated plate 46 as illustrated in the figure. This intake tube 50 has internally, like the intake tubes 26a and 26b, the shape of a venturi tube. It allows air to be introduced into the mixing chamber when gas is in ected at the inlet of the tube 50 by an inverter 52 placed at the end of an auxiliary gas supply circuit 54 .
Comme l'illustre la figure, ce circuit auxi¬ liaire 54 est relié à La tuyauterie 36 d'arrivée de gaz au travers du même robinet 38 que Le circuit principal 34. Pour compléter la description de la table de cuisson selon l'invention, on voit sur la figure que le brûleur auxiliaire 12 débouche dans sa partie cen¬ trale devant un thermocouple 56 qui est relié au robinet 38 par un conducteur électrique 58. Lorsqu'une flamme est présente à la sortie du brûleur auxiliaire 12, le thermocouple 56 envoie un signal électrique qui main¬ tient ouvert le clapet de sécurité (non représenté) du robinet 38.As illustrated in the figure, this auxiliary circuit 54 is connected to the gas inlet pipe 36 through the same tap 38 as the main circuit 34. To complete the description of the hob according to the invention, we see in the figure that the auxiliary burner 12 opens in its central part in front of a thermocouple 56 which is connected to the tap 38 by an electrical conductor 58. When a flame is present at the outlet of the auxiliary burner 12, the thermocouple 56 sends an electrical signal which keeps the safety valve (not shown) of tap 38 open.
La table de cuisson vitro-céram que conforme à l'invention qui vient d'être décrite fonctionne de la façon suivante.The vitro-ceramic hob that conforms to the invention which has just been described operates from the following way.
Lorsqu' i l désire allumer le brûleur auxi liaire 12, l'uti lisateur ouvre le robinet 38, ce qui a pour effet immédiat d'injecter un mélange combustible air-gaz dans le brûleur auxi liaire 12 et d'allumer ce mélange à la sortie de la plaquette perforée 46 à l'aide de tout moyen connu (non représenté) . L'allumage du brûleur auxi liaire effectué, le thermocouple 56 envoie au robi¬ net 38 un signal électrique maintenant ouverte l'alimen- tation du gaz dans le circuit principal 34. Cependant, les é Lect rovannes de régulation 40a et 40b sont alors normalement fermées puisque les boutons de réglage de la température 43a, 43b qui se trouvent sur la face avant de l'apparei l ont normalement été ramenés dans leur position de fermeture à la fin de sa précédente uti lisation. L'apparei l se trouve donc alors dans sa position de vei lle, dans laquelle un allumage pratique¬ ment immédiat de l'un et/ou l'autre des brûleurs 10a et 10b peut être effectué. Cet allumage est réalisé en agissant sur les boutons de réglage de la température 43a, 43b associés aux thermostats 42a et 42b, de façon à ouvrir Les élec¬ trovannes 40a et 40b jusqu'à l'obtention de la tempéra¬ ture affichée. La description qui précède fait apparaître clairement le caractère particulièrement simple, peu encombrant et peu coûteux de la table de cuisson confor¬ me à L'invention. Cette simplicité a aussi pour consé¬ quence d'accroître la fiabi lité par rapport aux tables de cuisson existantes comportant des circuits électroni¬ ques complexes. En particulier, la fonction de sécurité est assurée ici directement par le robinet 38, relié à cet effet au thermocouple 56 de détection de flamme. Les é lect rovannes 40a et 40b n'ont donc plus qu'une fonction de régulation des brûleurs principaux qui leurs sont associés. Dans la table de cuisson vitro-céramique dé¬ crite, les brûleurs principaux 10a et 10b, ainsi que le brûleur auxiliaire 12, sont des brûleurs atmosphéri¬ ques à fort taux d'aération primaire qui disposent d'une température de flamme élevée favorisant un allumage rapide. De plus, la disposition particulière du brûleur auxiliaire 12 et des tubes d'admission 26a et 26b sup¬ prime le retard à l'allumage, une répartition homogène des flammes de chacun des brûleurs principaux étant cependant assurée par les grilles de répartition 28.When he wishes to light the auxiliary burner 12, the user opens the valve 38, which has the immediate effect of injecting a fuel air-gas mixture into the auxiliary burner 12 and igniting this mixture at the outlet. of the perforated plate 46 using any known means (not shown). The ignition of the auxiliary burner carried out, the thermocouple 56 sends to the net 38 an electrical signal now open the supply of gas to the main circuit 34. However, the regulating valves 40a and 40b are then normally closed since the temperature adjustment buttons 43a, 43b which are on the front face of the device have normally been returned to their closed position at the end of their previous use. The device is therefore in its standby position, in which an immediate immediate ignition of one and / or the other of the burners 10a and 10b can be carried out. This ignition is achieved by acting on the temperature adjustment buttons 43a, 43b associated with the thermostats 42a and 42b, so as to open the electro valves 40a and 40b until the displayed temperature is obtained. The foregoing description clearly shows the particularly simple, space-saving and inexpensive nature of the hob conforming to the invention. This simplicity also has the consequence of increasing reliability compared to existing cooktops comprising complex electronic circuits. In particular, the safety function is ensured here directly by the tap 38, connected for this purpose to the flame detection thermocouple 56. The electromagnetic valves 40a and 40b therefore only have a regulating function for the main burners associated with them. In the described ceramic hob, the main burners 10a and 10b, as well as the auxiliary burner 12, are atmospheric burners with a high rate of primary aeration which have a high flame temperature favoring a fast ignition. In addition, the particular arrangement of the auxiliary burner 12 and of the intake tubes 26a and 26b suppresses the ignition delay, a homogeneous distribution of the flames of each of the main burners being however ensured by the distribution grids 28.
Il est à noter que la table de cuisson selon l'invention peut aussi comprendre avantageusement :It should be noted that the hob according to the invention can also advantageously include:
- une régulation, par thermostat numérique de La tempé¬ rature au-dessus de chaque brûleur 10a, 10b, re pla- çant les boutons de réglage de la température 43a, 43b ;a regulation, by digital thermostat, of the temperature above each burner 10a, 10b, re placing the temperature adjustment buttons 43a, 43b;
- une temporisation, permettant de programmer le temps de cuisson de chaque brûleur, et donc d'arrêter le temps de cuisson prévu, en passant automatiquement le chauffage en position de puissance réduite, et en attente d'enlèvement des préparations culinaires, avec avertissement sonore ou lumineux r "- a time delay, allowing to program the cooking time of each burner, and therefore to stop the planned cooking time, automatically switching the heating to the reduced power position, and awaiting the removal of culinary preparations, with audible warning or bright r "
- un arrêt automatique du brûleur à L'enlèvement du récipient, par visualisation ou dispositif inductif de la présence des récipients.- an automatic shutdown of the burner when the container is removed, by visualization or inductive device of the presence of the containers.
Bien entendu, l'invention n'est pas Limitée au mode de réalisation qui vient d'être décrit à titre d'exemple, mais en couvre toutes les variantes. En par¬ ticulier, on comprendra aisément que La table de cuisson conforme à l'invention pourrait ne présenter qu'un seul brûleur principal associé à un brûleur auxiliaire for¬ mant veilleuse. Of course, the invention is not limited to the embodiment which has just been described by way of example, but covers all its variants. In particular, it will be readily understood that the hob according to the invention could have only one main burner associated with an auxiliary burner for forming a pilot light.

Claims

REVENDICATIONS
1. Table de cuisson vitro-céramique, chauffée au gaz, comprenant :1. Gas-heated ceramic hob, comprising:
- une plaque vitro-céramique horizontale ; - au moins un brûleur principal (10a, 10b) placé en des¬ sous de la plaque vitro-céramique et comportant au moins une première plaquette perforée (18a, 18b), en matériau réfractaire, une première chambre de mélange (22a,22b) placée en dessous de ladite plaquette, et des premiers moyens d'injection (26a,26b) d'un mélange combustible air-gaz dans cette chambre ;- a horizontal ceramic hob; - At least one main burner (10a, 10b) placed below the ceramic hob and comprising at least a first perforated plate (18a, 18b), made of refractory material, a first mixing chamber (22a, 22b) placed below said plate, and first injection means (26a, 26b) of an air-gas fuel mixture in this chamber;
- un circuit principal d'alimentation en gaz (34) des moyens d'injection ;- a main gas supply circuit (34) of the injection means;
- des moyens d'allumage (12) du mélange air-gaz à La sortie du brûleur principal ; caractérisée par Le fait que Les moyens d'allumage comprennent un brûleur auxi liaire (12), formant vei l¬ leuse, débouchant au moins en partie au-dessus du brû¬ leur principal (10a,10b) et comportant une deuxième plaquette perforée (46), en matériau réfractaire, une deuxième chambre de mélange adjacente à la deuxième pla¬ quette, des deuxièmes moyens d'injection (50) du mélange combustible air-gaz dans cette deuxième chambre, les moyens d'allumage comprenant de plus un circuit auxi- Liaire (54) d'alimentation en gaz des deuxièmes moyens d'injection.- ignition means (12) of the air-gas mixture at the outlet of the main burner; characterized by the fact that the ignition means comprise an auxiliary burner (12), forming a veil, opening at least partially above the main burner (10a, 10b) and comprising a second perforated plate ( 46), made of refractory material, a second mixing chamber adjacent to the second plate, second injection means (50) of the air-gas fuel mixture in this second chamber, the ignition means further comprising a circuit auxiliary (54) for supplying gas to the second injection means.
2. Table de cuisson selon la revendication 1, caractérisée par le fait que le circuit principal (34) et le circuit auxi liaire (54) sont reliés à une tuyaute- rie (36) d'arrivée de gaz au travers d'un même robinet (38) comportant des moyens de fermeture actionnés auto¬ matiquement lorsqu'un signal d'absence de flamme est émis par un détecteur de flamme (56) placé devant le brûleur auxi liaire (12). 2. Cooktop according to claim 1, characterized in that the main circuit (34) and the auxiliary circuit (54) are connected to a gas supply pipe (36) through the same tap (38) comprising closing means actuated automatically when a flame absence signal is emitted by a flame detector (56) placed in front of the auxiliary burner (12).
3. Table de cuisson selon l'une quelconque des revendications précédentes, caractérisée par le fait qu'un dispositif de régulation de température réglable (42a,42b) pilote une électrovanne (40a,40b) placée dans Le circuit principal (34), par l'intermédiaire d'un bouton de réglage de la température (43a,43b).3. Cooktop according to any one of the preceding claims, characterized in that an adjustable temperature regulation device (42a, 42b) controls a solenoid valve (40a, 40b) placed in the main circuit (34), by means of an adjustment button the temperature (43a, 43b).
4. Table de„cuisson selon la revendication 3, caractérisée par Le fait que le dispositif de régulation comporte un thermostat (42a,42b) monté sur un organe mobile non fixé à la plaque radiante (14), de telle sorte que le thermostat soit au contact de cette der¬ nière.4. Cooking table according to claim 3, characterized in that the regulation device comprises a thermostat (42a, 42b) mounted on a movable member not fixed to the radiant plate (14), so that the thermostat is in contact with the latter.
5. Table de cuisson selon l'une quelconque des revendications 1 et 2, caractérisée par Le fait qu'un thermostat numérique assure une régulation de la température au-dessus de chaque brûleur principal C10a,10b).5. Cooktop according to any one of claims 1 and 2, characterized in that a digital thermostat regulates the temperature above each main burner C10a, 10b).
6. Table de cuisson selon l'une quelconque des revendications précédentes, caractérisée par le fait que la plaquette perforée (46) du brûleur auxiliaire est orientée sensiblement verticalement et débouche immédiatement au-dessus de la plaquette perforée (18a,18b) du brûleur principal, dans un plan faisant face aux premiers moyens d'injection (26a, 6b).6. Cooktop according to any one of the preceding claims, characterized in that the perforated plate (46) of the auxiliary burner is oriented substantially vertically and opens immediately above the perforated plate (18a, 18b) of the main burner , in a plane facing the first injection means (26a, 6b).
7. Table de cuisson selon la revendication 6, caractérisée par le fait qu'elle comprend deux brûleurs principaux (10a,10b) débouchant dans un même plan hori¬ zontal et alimentés en gaz par un même circuit principal (34) comportant une bifurcation, et un seul brûleur auxiliaire (12) ayant deux extrémités qui débouchent immédiatement au-dessus de la plaquette perforée (18a, 18b) des brûleurs principaux.7. Cooktop according to claim 6, characterized in that it comprises two main burners (10a, 10b) opening into the same hori¬ zontal plane and supplied with gas by the same main circuit (34) comprising a bifurcation, and a single auxiliary burner (12) having two ends which open immediately above the perforated plate (18a, 18b) of the main burners.
8. Table de cuisson selon L'une quelconque des revendications précédentes, caractérisée par le fait qu'une grille de répartition (28a) du mélange air-gaz est placée dans la première chambre de mélange (22a), sensiblement parallèlement à la première plaquette per¬ forée (18a,18b).8. Cooktop according to any one of the preceding claims, characterized in that a distribution grid (28a) of the air-gas mixture is placed in the first mixing chamber (22a), substantially parallel to the first perforated plate (18a, 18b).
9. Table de cuisson selon l'une quelconque des revendications précédentes, caractérisée par le fait qu'elle comprend des moyens de temporisation permettant de programmer le temps de cuisson sur chaque brûleur principal (10a,10b) .9. Cooktop according to any one of the preceding claims, characterized in that it comprises timing means making it possible to program the cooking time on each main burner (10a, 10b).
10. Table de cuisson selon l'une quelconque des revendications précédentes, caractérisée par Le fait qu'elle comprend des moyens d'arrêt automatique de cha¬ que brûleur principal (10a,10b), commandés par des moyens de détection de l'enlèvement d'un récipient. 10. Cooktop according to any one of the preceding claims, characterized in that it comprises means for automatically stopping each of the main burner (10a, 10b), controlled by means of detecting removal. of a container.
PCT/FR1992/000975 1991-10-16 1992-10-15 Gas-heated vitroceramic hotplate WO1993008427A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5507491A JPH06506293A (en) 1991-10-16 1992-10-15 Gas heated glass-ceramic cooking means

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9112762A FR2682742B1 (en) 1991-10-16 1991-10-16 VITRO-CERAMIC HOB, GAS HEATED.
FR91/12762 1991-10-16

Publications (1)

Publication Number Publication Date
WO1993008427A1 true WO1993008427A1 (en) 1993-04-29

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EP (1) EP0562109A1 (en)
JP (1) JPH06506293A (en)
CA (1) CA2098111A1 (en)
FR (1) FR2682742B1 (en)
WO (1) WO1993008427A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19623529A1 (en) * 1996-06-13 1997-12-18 Diehl Gmbh & Co Burner for gas cooker
DE10041472C1 (en) * 2000-08-24 2002-04-18 Schott Glas Gas radiant burner
CN215175270U (en) * 2019-10-18 2021-12-14 Bs服务股份责任有限公司 Gas stove rack with touch control panel

Citations (2)

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Publication number Priority date Publication date Assignee Title
DE2721921B2 (en) * 1977-05-14 1981-01-15 Frank'sche Eisenwerke Ag, 6340 Dillenburg Gas cooking device with a gas-tight cover plate
EP0124022A2 (en) * 1983-04-30 1984-11-07 Schott Glaswerke Cooker hob with gas heated hot plates and a continuous cooking area of glass-ceramic or similar material

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Publication number Priority date Publication date Assignee Title
JPS6078224A (en) * 1983-10-03 1985-05-02 Matsushita Electric Ind Co Ltd Gas controller of gas burner

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2721921B2 (en) * 1977-05-14 1981-01-15 Frank'sche Eisenwerke Ag, 6340 Dillenburg Gas cooking device with a gas-tight cover plate
EP0124022A2 (en) * 1983-04-30 1984-11-07 Schott Glaswerke Cooker hob with gas heated hot plates and a continuous cooking area of glass-ceramic or similar material

Non-Patent Citations (1)

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Title
PATENT ABSTRACTS OF JAPAN vol. 9, no. 220 (E-341)(1943) 6 Septembre 1985 *

Also Published As

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CA2098111A1 (en) 1993-04-16
FR2682742B1 (en) 1993-12-24
FR2682742A1 (en) 1993-04-23
JPH06506293A (en) 1994-07-14
EP0562109A1 (en) 1993-09-29

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