EP1298390A1 - Gas burner for cooking hob - Google Patents

Gas burner for cooking hob Download PDF

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Publication number
EP1298390A1
EP1298390A1 EP02292241A EP02292241A EP1298390A1 EP 1298390 A1 EP1298390 A1 EP 1298390A1 EP 02292241 A EP02292241 A EP 02292241A EP 02292241 A EP02292241 A EP 02292241A EP 1298390 A1 EP1298390 A1 EP 1298390A1
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EP
European Patent Office
Prior art keywords
side wall
cap
gas burner
approximately
burner head
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Withdrawn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
EP02292241A
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German (de)
French (fr)
Inventor
Pierre Siu Hun Yam
Bernard Dane
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.)
Burner Systems International BSI SA
Original Assignee
Burner Systems International BSI SA
Sourdillon SA
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 Burner Systems International BSI SA, Sourdillon SA filed Critical Burner Systems International BSI SA
Publication of EP1298390A1 publication Critical patent/EP1298390A1/en
Withdrawn legal-status Critical Current

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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
    • 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
    • F23D14/583—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration of elongated shape, e.g. slits

Definitions

  • the present invention relates to improvements brought to gas burners for appliance cooking, comprising a burner head delimited by a substantially frustoconical peripheral side wall at small section at the top with a multiplicity of peripherally distributed slots and forming flame orifices, said burner head being capped by a cover or hat.
  • FIG. 1 of the accompanying drawings there are very schematically represented a classic arrangement of gas burner for cooking appliance.
  • This gas burner essentially, and only for what relates to the invention, a burner head 1 delimited by a peripheral side wall 2.
  • This wall device 2 is slightly tapered with its small section located at the top.
  • the peripheral wall 2 is provided with a multiplicity of slots 3, at the bottom 8 approximately horizontal, distributed peripherally and forming flame orifices 4.
  • the burner head 1 is covered by a removable cover or cap 5 which closes upper slots 3 and defines the orifices of flames.
  • the gas burner can be made, for the rest, anyway appropriate; in particular, for extra flat type burners, the burner can known per se, include a defined radial annular venturi by the underside of the hat 5.
  • the side wall 2 of the burner head is only very slightly inclined with respect to the vertical, this inclination typically not exceeding 1 to 3 °. It results that the flames 4, which come out of their orifices respective 3 approximately perpendicular to this wall 2, tend to deviate significantly from the wall of the burner head and do not come into contact with the bottom 6 of a container 7 dimensionally adapted to the burner that in the vicinity of the peripheral edge of said bottom of the container as shown clearly in Figure 1. Under these conditions, the bottom of the container is less heated in its central area: its heating does not does not take place in a substantially homogeneous manner the whole of its surface, while a notable fraction heat escapes laterally and is lost.
  • the invention aims to propose an arrangement which, for a given diameter of the burner, lead to a significantly increased efficiency of the burner and at a substantially accelerated heating rate, without besides that it results in any complication of the structure or manufacture of the burner.
  • a gas burner as mentioned in preamble is characterized, being arranged in accordance with the invention, in that the side wall has a inclination, with respect to the vertical, from 10 to 20 °, advantageously around 15 °, and in that the bottom of each flame opening opening extending transversely to said side wall, has a inclination from the horizontal of 20 ° to 30 °, preferably around 25 °.
  • the flames come out of the respective holes closer to the vertical so that they reach the bottom of the container in a more central area of it and the heating of this bottom is more homogeneous. Correlatively, a smaller fraction heat escapes laterally. In total, the transmission of heat to the container and its contents takes place under significantly better conditions and the overall burner efficiency is significantly improved.
  • the cap extends radially outwards beyond side wall of the burner head
  • the portion ring of the peripheral underside of the hat protruding radially beyond the side wall of the burner head is tilted and raised, relative to said side wall, of approximately 90 ° to 110 °, of preferably around 100 °: thus, the shape given to the overflowing portion of the hat better clears the space above flame ports and allows flames to better straighten up.
  • the implementation of the provisions of the invention results in less heating time, for example to bring a given volume of liquid to the boil.
  • To fix ideas to carry a volume of 6 liters of water, contained in a container having a diameter of 203 mm, from a temperature of 22 ° C to a temperature of 98 ° C, it takes a time of about 21 minutes with a burner arranged in accordance with the invention, against approximately 25 min with a burner arranged in a traditional way.
  • the provisions according to the invention therefore allow a significant reduction in heating time (of the order of 16% in the example considered), and therefore a saving correlative in gas consumption.
  • the side wall peripheral 2 ' has a more pronounced taper than in the previous burners and its inclination ⁇ , by relative to the vertical, is of the order of 10 ° to 20 °, typically around 15 °.
  • each slot 3 forming flame orifice extending transversely to said wall 2 has an inclination ⁇ relative to the horizontal which is of the order of 20 ° to 30 °, typically about 25 °.
  • peripheral annular portion 9 of the underside of cap 5 projecting radially beyond side wall 2 of the extending burner head almost horizontally, or at least with a minimal inclination from the horizontal, being located substantially in the extension of the top of the flame orifice.
  • this portion peripheral ring 9 of the underside of the cap 5 hinders an increased straightening of the flames 4 and contributes (in conjunction with the minimal taper of the wall lateral 2 and the quasi-horizontality of the bottom 8 of the slots 3) to spread the flames 4 towards the peripheral edge of the bottom 6 of container 7.
  • the invention proposes to arrange the underside of the hat so that in conjunction with the provisions fundamental exposed above with regard to FIG. 2, the flames 4 can be straightened again more sensitive.
  • a first possible arrangement consists, as illustrated in FIG. 3, of raising the peripheral annular portion 9 above the flame orifices by a value h , all other things remaining identical.
  • This heightening can be between approximately 2 mm and 6 mm, typically being of the order of 3 mm.
  • a second possible arrangement consists, as illustrated in Figure 4, to give a more tilt significant to the peripheral annular portion 9 'by compared to the wall 2 '.
  • This inclination ⁇ is understood between about 90 ° and 110 °, and is typically about 100 °.
  • the increased tilt of the portion peripheral ring 9 'from below the cap 5 contributes to clearing the space around the orifices of flame, which facilitates increased effective recovery of flames 4.

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

Abstract

The burner head (1') is bounded by a frustoconical peripheral sidewall (2), and has multiple slots (3) distributed peripherally and forming flame orifices. The head is topped with a cover or cap. The sidewall inclines at an angle of about 10 to 20 degrees. The bottom (8') of each slot forms the orifice that extends transversely to sidewall and angled ranging from 20 to 30 degrees with the horizontal.

Description

La présente invention concerne des perfectionnements apportés aux brûleurs à gaz pour appareil de cuisson, comprenant une tête de brûleur délimitée par une paroi latérale périphérique sensiblement tronconique à petite section située en haut et comportant une multiplicité de fentes réparties périphériquement et formant orifices de flammes, ladite tête de brûleur étant coiffée par un couvercle ou chapeau.The present invention relates to improvements brought to gas burners for appliance cooking, comprising a burner head delimited by a substantially frustoconical peripheral side wall at small section at the top with a multiplicity of peripherally distributed slots and forming flame orifices, said burner head being capped by a cover or hat.

A la figure 1 des dessins ci-annexés, on a représenté très schématiquement un agencement classique de brûleur à gaz pour appareil de cuisson. Ce brûleur à gaz comporte essentiellement, et uniquement pour ce qui concerne l'invention, une tête de brûleur 1 délimitée par une paroi latérale périphérique 2. Cette paroi périphérique 2 est légèrement tronconique avec sa petite section située en haut. La paroi périphérique 2 est pourvue d'une multiplicité de fentes 3, à fond 8 approximativement horizontal, réparties périphériquement et formant orifices de flammes 4. La tête de brûleur 1 est coiffée par un couvercle ou chapeau 5, amovible, qui ferme supérieurement les fentes 3 et définit les orifices de flammes.In Figure 1 of the accompanying drawings, there are very schematically represented a classic arrangement of gas burner for cooking appliance. This gas burner essentially, and only for what relates to the invention, a burner head 1 delimited by a peripheral side wall 2. This wall device 2 is slightly tapered with its small section located at the top. The peripheral wall 2 is provided with a multiplicity of slots 3, at the bottom 8 approximately horizontal, distributed peripherally and forming flame orifices 4. The burner head 1 is covered by a removable cover or cap 5 which closes upper slots 3 and defines the orifices of flames.

Le brûleur à gaz peut être constitué, pour le reste, de toute façon appropriée ; notamment, pour des brûleurs de type extra plat, le brûleur peut, de façon en soi connue, comporter un venturi annulaire radial défini par la face inférieure du chapeau 5.The gas burner can be made, for the rest, anyway appropriate; in particular, for extra flat type burners, the burner can known per se, include a defined radial annular venturi by the underside of the hat 5.

Dans les brûleurs à gaz actuellement connus, la paroi latérale 2 de la tête de brûleur n'est que très faiblement inclinée par rapport à la verticale, cette inclinaison n'excédant pas typiquement 1 à 3°. Il en résulte que les flammes 4, qui sortent de leurs orifices respectifs 3 approximativement perpendiculairement à cette paroi 2, ont tendance à s'écarter sensiblement de la paroi de la tête de brûleur et n'entrent en contact avec le fond 6 d'un récipient 7 dimensionnellement adapté au brûleur qu'au voisinage du bord périphérique dudit fond du récipient comme cela apparaít clairement à la figure 1. Dans ces conditions, le fond du récipient est moins chauffé dans sa zone centrale : son chauffage ne s'effectue pas de façon sensiblement homogène sur l'ensemble de sa surface, tandis qu'une fraction notable de la chaleur s'échappe latéralement et est perdue.In currently known gas burners, the side wall 2 of the burner head is only very slightly inclined with respect to the vertical, this inclination typically not exceeding 1 to 3 °. It results that the flames 4, which come out of their orifices respective 3 approximately perpendicular to this wall 2, tend to deviate significantly from the wall of the burner head and do not come into contact with the bottom 6 of a container 7 dimensionally adapted to the burner that in the vicinity of the peripheral edge of said bottom of the container as shown clearly in Figure 1. Under these conditions, the bottom of the container is less heated in its central area: its heating does not does not take place in a substantially homogeneous manner the whole of its surface, while a notable fraction heat escapes laterally and is lost.

L'invention vise à proposer un agencement perfectionné, qui, pour un diamètre donné du brûleur, conduise à une efficacité notablement accrue du brûleur et à une vitesse de chauffe sensiblement accélérée, sans en outre qu'il en résulte une quelconque complication de la structure ou de la fabrication du brûleur.The invention aims to propose an arrangement which, for a given diameter of the burner, lead to a significantly increased efficiency of the burner and at a substantially accelerated heating rate, without besides that it results in any complication of the structure or manufacture of the burner.

A ces fins, un brûleur à gaz tel que mentionné au préambule se caractérise, étant agencé conformément à l'invention, en ce que la paroi latérale présente une inclinaison, par rapport à la verticale, de 10 à 20°, avantageusement d'environ 15°, et en ce que le fond de chaque fente formant orifice de flamme, s'étendant transversalement à ladite paroi latérale, présente une inclinaison par rapport à l'horizontale de 20° à 30°, avantageusement d'environ 25°.For these purposes, a gas burner as mentioned in preamble is characterized, being arranged in accordance with the invention, in that the side wall has a inclination, with respect to the vertical, from 10 to 20 °, advantageously around 15 °, and in that the bottom of each flame opening opening extending transversely to said side wall, has a inclination from the horizontal of 20 ° to 30 °, preferably around 25 °.

Grâce à cet agencement, les flammes sortent des orifices respectifs de façon plus proche de la verticale de sorte qu'elles atteignent le fond du récipient dans une zone plus centrale de celui-ci et le chauffage de ce fond est plus homogène. Corrélativement, une moindre fraction de la chaleur s'échappe latéralement. Au total, la transmission de la chaleur au récipient et à son contenu s'effectue dans des conditions nettement meilleures et le rendement global du brûleur est sensiblement amélioré.Thanks to this arrangement, the flames come out of the respective holes closer to the vertical so that they reach the bottom of the container in a more central area of it and the heating of this bottom is more homogeneous. Correlatively, a smaller fraction heat escapes laterally. In total, the transmission of heat to the container and its contents takes place under significantly better conditions and the overall burner efficiency is significantly improved.

Dans un agencement, courant, de brûleur à gaz dans lequel le chapeau déborde radialement vers l'extérieur au-delà de la paroi latérale de la tête de brûleur, on prévoit, conformément à l'invention, que la portion annulaire de la face inférieure périphérique du chapeau débordant radialement au-delà de la paroi latérale de la tête de brûleur soit inclinée et surélevée, par rapport à ladite paroi latérale, d'approximativement 90°à 110°, de préférence de l'ordre de 100°: ainsi, la forme donnée à la portion débordante du chapeau dégage mieux l'espace au-dessus des orifices de flamme et permet aux flammes de mieux se redresser.In a common arrangement of a gas burner in which the cap extends radially outwards beyond side wall of the burner head, provides, in accordance with the invention, that the portion ring of the peripheral underside of the hat protruding radially beyond the side wall of the burner head is tilted and raised, relative to said side wall, of approximately 90 ° to 110 °, of preferably around 100 °: thus, the shape given to the overflowing portion of the hat better clears the space above flame ports and allows flames to better straighten up.

Toujours dans le même but, et éventuellement en combinaison avec les dispositions qui viennent d'être exposées, on peut prévoir que la portion annulaire périphérique de la face inférieure du chapeau débordant radialement au-delà de la paroi latérale de la tête de brûleur soit surélevée d'environ 2 mm à 6 mm par rapport à la portée d'appui du chapeau sur le haut de la tête de brûleur ; avantageusement, la surélévation est d'environ 3 mm. Un tel agencement présente l'avantage d'être structurellement simple et de fabrication aisée.Always for the same purpose, and possibly combination with the provisions that have just been exposed, we can predict that the annular portion peripheral of the underside of the overflowing hat radially beyond the side wall of the head burner is raised by about 2 mm to 6 mm from the bearing surface of the hat on the top of the head burner; advantageously, the elevation is about 3 mm. Such an arrangement has the advantage of being structurally simple and easy to manufacture.

La mise en oeuvre des dispositions de l'invention se traduit par un moindre temps de chauffage, par exemple pour porter un volume donné de liquide à l'ébullition. Pour fixer les idées, pour porter un volume de 6 litres d'eau, contenu dans un récipient ayant un diamètre de 203 mm, d'une température de 22°C à une température de 98°C, il faut un temps de l'ordre de 21 mn avec un brûleur agencé conformément à l'invention, contre environ 25 mn avec un brûleur agencé de façon traditionnelle. Les dispositions conformes à l'invention permettent donc une réduction sensible du temps de chauffage (de l'ordre de 16% dans l'exemple considéré), et donc une économie corrélative dans la consommation de gaz.The implementation of the provisions of the invention results in less heating time, for example to bring a given volume of liquid to the boil. To fix ideas, to carry a volume of 6 liters of water, contained in a container having a diameter of 203 mm, from a temperature of 22 ° C to a temperature of 98 ° C, it takes a time of about 21 minutes with a burner arranged in accordance with the invention, against approximately 25 min with a burner arranged in a traditional way. The provisions according to the invention therefore allow a significant reduction in heating time (of the order of 16% in the example considered), and therefore a saving correlative in gas consumption.

L'invention sera mieux comprise à la lecture de la description détaillée qui suit d'un mode de réalisation préféré donné à titre d'exemple nullement limitatif. Dans cette description, on se réfère au dessin annexé sur lequel :

  • la figure 2 illustre de façon schématique une tête de brûleur agencée conformément à l'invention ; et
  • les figures 3 et 4 illustrent schématiquement respectivement deux variantes de réalisation préférées des dispositions de la figure 2.
The invention will be better understood on reading the following detailed description of a preferred embodiment given by way of non-limiting example. In this description, reference is made to the appended drawing in which:
  • Figure 2 schematically illustrates a burner head arranged in accordance with the invention; and
  • FIGS. 3 and 4 diagrammatically illustrate respectively two preferred alternative embodiments of the provisions of FIG. 2.

A la figure 2, la représentation du brûleur à gaz 1' est identique à celle donnée à la figure 1 à l'exception des dispositions propres à l'invention et les mêmes références numériques ont été conservées pour désigner les organes ou parties inchangés.In Figure 2, the representation of the gas burner 1 'is identical to that given in FIG. 1 to except the provisions specific to the invention and the same reference numbers have been kept for designate the organs or parts unchanged.

Conformément à l'invention, la paroi latérale périphérique 2' présente une conicité plus prononcée que dans les brûleurs antérieurs et son inclinaison α, par rapport à la verticale, est de l'ordre de 10° à 20°, typiquement d'environ 15°.According to the invention, the side wall peripheral 2 'has a more pronounced taper than in the previous burners and its inclination α, by relative to the vertical, is of the order of 10 ° to 20 °, typically around 15 °.

De plus, le fond 8' de chaque fente 3 formant orifice de flamme s'étendant transversalement à ladite paroi 2 présente une inclinaison β par rapport à l'horizontale qui est de l'ordre de 20° à 30°, typiquement d'environ 25°.In addition, the bottom 8 'of each slot 3 forming flame orifice extending transversely to said wall 2 has an inclination β relative to the horizontal which is of the order of 20 ° to 30 °, typically about 25 °.

Dans ces conditions, comme visible à la figure 2 (sur laquelle le chapeau 5 reste identique, en forme et en position, à ce qu'il était à la figure 1), les flammes 4 sont plus redressées que dans la configuration de la figure 1 et atteignent le fond 6 du récipient dans une région plus centrale de celui-ci. Le chauffage du fond 6 dans son ensemble est donc plus homogène et une moindre fraction de chaleur s'échappe latéralement.Under these conditions, as visible in Figure 2 (on which the cap 5 remains identical, in shape and in position, as it was in Figure 1), the flames 4 are more straightened than in the configuration of the Figure 1 and reach the bottom 6 of the container in a more central region of it. Bottom heating 6 as a whole is therefore more homogeneous and less fraction of heat escapes laterally.

On peut encore améliorer les résultats intéressants ainsi obtenus en ayant recours à l'une et/ou à l'autre des dispositions complémentaires illustrées aux figures 3 et 4 et qui concernent un agencement spécifique du chapeau 5 débordant radialement vers l'extérieur au-delà de la paroi latérale 2 de la tête du brûleur.We can still improve the results interesting thus obtained by using one and / or to the other additional provisions illustrated in Figures 3 and 4 and which relate to a specific arrangement of cap 5 projecting radially outwards beyond side wall 2 of the burner head.

Dans un agencement classique du chapeau 5 illustré à la figure 1, la portion annulaire périphérique 9 de la face inférieure du chapeau 5 débordant radialement au-delà de la paroi latérale 2 de la tête de brûleur s'étendant quasiment horizontalement, ou à tout le moins avec une inclinaison minime par rapport à l'horizontale, en étant située sensiblement dans le prolongement du haut de l'orifice de flamme. Dans ces conditions, cette portion annulaire périphérique 9 de la face inférieure du chapeau 5 gêne un redressement accru des flammes 4 et contribue (en conjonction avec la conicité minime de la paroi latérale 2 et la quasi-horizontalité du fond 8 des fentes 3) à écarter les flammes 4 vers le bord périphérique du fond 6 du récipient 7.In a classic arrangement of the hat 5 illustrated in FIG. 1, the peripheral annular portion 9 of the underside of cap 5 projecting radially beyond side wall 2 of the extending burner head almost horizontally, or at least with a minimal inclination from the horizontal, being located substantially in the extension of the top of the flame orifice. Under these conditions, this portion peripheral ring 9 of the underside of the cap 5 hinders an increased straightening of the flames 4 and contributes (in conjunction with the minimal taper of the wall lateral 2 and the quasi-horizontality of the bottom 8 of the slots 3) to spread the flames 4 towards the peripheral edge of the bottom 6 of container 7.

L'invention propose d'agencer le dessous du chapeau de manière qu'en conjonction avec les dispositions fondamentales exposées ci-dessus en regard de la figure 2, les flammes 4 puissent être redressées de façon encore plus sensible.The invention proposes to arrange the underside of the hat so that in conjunction with the provisions fundamental exposed above with regard to FIG. 2, the flames 4 can be straightened again more sensitive.

Une première disposition possible consiste, comme illustré à la figure 3, à surélever d'une valeur h la portion annulaire périphérique 9 au-dessus des orifices de flamme, toutes choses restant identiques par ailleurs. Cette surélévation peut être comprise entre environ 2 mm et 6 mm, typiquement être de l'ordre de 3 mm.A first possible arrangement consists, as illustrated in FIG. 3, of raising the peripheral annular portion 9 above the flame orifices by a value h , all other things remaining identical. This heightening can be between approximately 2 mm and 6 mm, typically being of the order of 3 mm.

De façon pratique, ce résultat peut être obtenu, comme illustré à la figure 3, en réalisant la partie centrale de la face inférieure du chapeau 5' (qui est entourée par la susdite portion annulaire périphérique 9) sous forme d'un plateau 10 saillant verticalement vers le bas. C'est par l'intermédiaire de ce plateau 10 que le chapeau 5' repose sur le haut de la tête du brûleur 1' agencée, quant à elle, de façon identique à la figure 2. Cette surélévation dégage un espace plus important autour des orifices de flamme qui facilite un redressement effectif accru des flammes 4.In practical terms, this can be achieved, as illustrated in figure 3, by carrying out the part center of the underside of the 5 'hat (which is surrounded by the above peripheral annular portion 9) in the form of a plate 10 projecting vertically towards the low. It is through this plate 10 that the cap 5 'rests on the top of the burner head 1' arranged, in turn, identically to Figure 2. This elevation gives more space around flame orifices which facilitate straightening increased number of flames 4.

Une seconde disposition possible consiste, comme illustré à la figure 4, à donner une inclinaison plus importante à la portion annulaire périphérique 9' par rapport à la paroi 2'. Cette inclinaison γ est comprise entre environ 90° et 110°, et est typiquement d'environ 100°. Là encore, l'inclinaison accrue de la portion annulaire périphérique 9' du dessous du chapeau 5" contribue à dégager l'espace autour des orifices de flamme, ce qui facilite un redressement effectif accru des flammes 4.A second possible arrangement consists, as illustrated in Figure 4, to give a more tilt significant to the peripheral annular portion 9 'by compared to the wall 2 '. This inclination γ is understood between about 90 ° and 110 °, and is typically about 100 °. Again, the increased tilt of the portion peripheral ring 9 'from below the cap 5 " contributes to clearing the space around the orifices of flame, which facilitates increased effective recovery of flames 4.

Bien entendu, il est possible de combiner les dispositions des figures 3 et 4.Of course, it is possible to combine the provisions of Figures 3 and 4.

Claims (8)

Brûleur à gaz pour appareil de cuisson, comprenant une tête de brûleur délimitée par une paroi latérale périphérique sensiblement tronconique à petite section située en haut et comportant une multiplicité de fentes réparties périphériquement et formant orifices de flammes, ladite tête de brûleur étant coiffée par un couvercle ou chapeau,
caractérisé en ce que la paroi latérale (2') présente une inclinaison (α), par rapport à la verticale, d'environ 10° à 20°et en ce que le fond (8') de chaque fente (3) formant orifice de flamme, s'étendant transversalement à ladite paroi latérale, présente une inclinaison (β) par rapport à l'horizontale d'environ 20° à 30°.Gas burner for cooking appliance, comprising a burner head delimited by a substantially frustoconical peripheral side wall with a small section located at the top and comprising a plurality of slots distributed peripherally and forming flame orifices, said burner head being capped by a cover or hat,
characterized in that the side wall (2 ') has an inclination (α), with respect to the vertical, of approximately 10 ° to 20 ° and in that the bottom (8') of each slot (3) forming an orifice flame, extending transversely to said side wall, has an inclination (β) relative to the horizontal of about 20 ° to 30 °. Brûleur à gaz selon la revendication 1, caractérisé en ce que l'inclinaison (α) de la paroi latérale (2') par rapport à la verticale est d'environ 15°.Gas burner according to claim 1, characterized in that the inclination (α) of the side wall (2 ') relative to the vertical is approximately 15 °. Brûleur à gaz selon la revendication 1 ou 2, caractérisé en ce que l'inclinaison (β) du fond (8') de chaque fente (3) par rapport à l'horizontale est d'environ 25°.Gas burner according to claim 1 or 2, characterized in that the inclination (β) of the bottom (8 ') of each slot (3) relative to the horizontal is approximately 25 °. Brûleur à gaz selon l'une quelconque des revendications 1 à 3, dans lequel le chapeau déborde radialement vers l'extérieur au-delà de la paroi latérale de la tête de brûleur, caractérisé en ce que la portion annulaire périphérique (9') de la face inférieure du chapeau (5") débordant radialement au-delà de la paroi latérale (2) de la tête de brûleur est inclinée (γ) par rapport à ladite paroi latérale (2') d'approximativement 90° à 110°. Gas burner according to any one of Claims 1 to 3, in which the cap projects radially outwards beyond the side wall of the burner head, characterized in that the annular peripheral portion (9 ') of the underside of the cap (5 ") projecting radially beyond the side wall (2) of the burner head is inclined (γ) relative to said side wall (2 ') of approximately 90 ° to 110 °. Brûleur à gaz selon la revendication 4, caractérisé en ce que ladite portion annulaire (9') de la face inférieure périphérique du chapeau (5") est inclinée, par rapport à ladite paroi latérale (2'), d'environ 100°.Gas burner according to claim 4, characterized in that said annular portion (9 ') of the peripheral underside of the cap (5 ") is inclined, with respect to said side wall (2'), by approximately 100 °. Brûleur à gaz selon l'une quelconque des revendications 1 à 5, dans lequel le chapeau déborde radialement vers l'extérieur au-delà de la paroi latérale de la tête de brûleur, caractérisé en ce que la portion annulaire périphérique (9') de la face inférieure du chapeau (5") débordant radialement au-delà de la paroi latérale (2') de la tête de brûleur est surélevée (h) d'environ 2 mm à 6 mm par rapport à la portée d'appui du chapeau (5') sur le haut de la tête de brûleur (1').Gas burner according to any one of Claims 1 to 5, in which the cap projects radially outwards beyond the side wall of the burner head, characterized in that the annular peripheral portion (9 ') of the underside of the cap (5 ") projecting radially beyond the side wall (2 ') of the burner head is raised (h) by approximately 2 mm to 6 mm relative to the bearing surface of the cap (5 ') on the top of the burner head (1'). Brûleur à gaz selon la revendication 6, caractérisé en ce que la surélévation (h) est d'environ 3 mm.Gas burner according to claim 6, characterized in that the elevation (h) is approximately 3 mm. Brûleur à gaz selon la revendication 6 ou 7, caractérisé en ce que la face inférieure du chapeau (5') comporte un plateau (10) en saillie verticale vers le bas par rapport à la susdite portion annulaire qui l'entoure, ledit plateau constituant la portée d'appui du chapeau sur le haut de la tête de brûleur.Gas burner according to claim 6 or 7, characterized in that the underside of the cap (5 ') comprises a plate (10) projecting vertically downward relative to the above annular portion which surrounds it, said plate constituting the bearing surface of the cap on the top of the burner head.
EP02292241A 2001-09-27 2002-09-12 Gas burner for cooking hob Withdrawn EP1298390A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0112429 2001-09-27
FR0112429A FR2830075A1 (en) 2001-09-27 2001-09-27 Gas burner for cooker has multiple slots provided to burner head with bottom of each slot forming flame orifice that extends transversely to sidewall and angled ranging from 20 to 30 degrees with horizontal

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EP1298390A1 true EP1298390A1 (en) 2003-04-02

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AR (1) AR037500A1 (en)
BR (1) BR0203821A (en)
CA (1) CA2404773A1 (en)
FR (1) FR2830075A1 (en)
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AR037500A1 (en) 2004-11-17
US6679699B2 (en) 2004-01-20
CA2404773A1 (en) 2003-03-27
FR2830075A1 (en) 2003-03-28
MXPA02009576A (en) 2004-07-30
US20030059733A1 (en) 2003-03-27
BR0203821A (en) 2003-09-16

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