EP1106930A1 - Gas cooking plate - Google Patents

Gas cooking plate Download PDF

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Publication number
EP1106930A1
EP1106930A1 EP00403376A EP00403376A EP1106930A1 EP 1106930 A1 EP1106930 A1 EP 1106930A1 EP 00403376 A EP00403376 A EP 00403376A EP 00403376 A EP00403376 A EP 00403376A EP 1106930 A1 EP1106930 A1 EP 1106930A1
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EP
European Patent Office
Prior art keywords
fins
manifold
space
section
gas hob
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Granted
Application number
EP00403376A
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German (de)
French (fr)
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EP1106930B1 (en
Inventor
Pascal Bailly
Frédéric Branger
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.)
Brandt Industries SAS
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Brandt Cooking SAC
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Publication of EP1106930A1 publication Critical patent/EP1106930A1/en
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    • 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
    • F24C3/08—Arrangement or mounting of burners
    • F24C3/085—Arrangement or mounting of burners on ranges

Definitions

  • the invention relates to the field of gas cooktops, and including domestic gas cooktops.
  • tables cooking gas contain one or more collectors bringing a first gaseous fluid, for example a mixture of gas and primary air, at one or several corresponding burners.
  • gas hobs use also, for feeding the flame of the burner (s), a second gaseous fluid, for example secondary air.
  • the invention provides a solution to reduce or eliminate this disturbance of the burner flame.
  • the flow of the second fluid gas is carried out through an annular space. Using distributed fins around the collector (s), the rotational component of the flow of the second gaseous fluid is reduced or eliminated. So the flame of little or no disturbance to the burner.
  • a gas hob comprising: a lower plate and an upper plate separated by a interplate space; at least one collector in which a first gaseous fluid and at least one section of which is located in space interplate; characterized in that the hob also includes: a annular space located between the upper plate and the manifold section, a second gaseous fluid capable of flowing from the interplate space to the outside of the hob, flowing through the annular space; several substantially flat fins distributed around the section of collector and directed substantially parallel to the axis of the section of manifold so that the second gaseous fluid can flow at the annular space with a rotational component substantially zero.
  • FIG. 1 schematically shows an example of a table gas cooking according to the invention.
  • the hob is shown in section.
  • the arrows in dotted lines represent the flow of a first fluid gaseous which is for example a mixture of gas and primary air.
  • the arrows in solid lines represent the flow of a second gaseous fluid which is for example secondary air.
  • the hob is delimited by an upper plate 1 and a lower plate 2. Between the plates lower 2 and upper 1 is an interplate space 3.
  • Let zc be central zone of the hob, i.e. the central zone as well plates 1 and 2 as interplate space 3 and let zp be the area peripheral of the hob, i.e.
  • the hob has at least one collector 4.
  • the hob is preferably rectangular or square and advantageously has four collectors located at the peripheral zone zp of the hob, for example one at each corner of the hob.
  • the collector 4 comprises a section 41 of collector located in the interplate space 3.
  • Between the plate upper 1 and the manifold 4 is an annular space 5.
  • a ventilation device 6 generates the flow of the second gaseous fluid towards the interplate space 3.
  • This ventilation device 6 is advantageously constituted by a fan 6 located under the central area zc of the bottom plate 2.
  • the fins 7 will be described in more detail in the figure. 3.
  • connection 8 between the bottom plate 2 and the manifold 4 is preferably waterproof.
  • Interplate space 3 is preferably delimited, radially, towards the outside of the hob, by a seal 9 which tightly connects the upper 1 and lower 2 plates.
  • H is the height of the interplate space 3.
  • the first gaseous fluid for example a mixture of gas and air primary, flows into the collector 4. This flow is represented by arrows in dotted lines.
  • a burner not shown here at the level of which is located the flame fed at the same time by the first and second gaseous fluids.
  • the second gaseous fluid by example of secondary air, flows through the interplate space 3. This flow is represented by the arrows in solid lines.
  • the second gaseous fluid passes through the fan 6, arrives in the central zone zc of the interplate space 3, and flows along the section or sections 41 of collector by the annular space or spaces 5 outside the interplate space 3. After passing through the annular space 5, the second gaseous fluid is directed to the burner not shown here to supply with the first fluid gaseous the flame of this burner.
  • Figure 2 shows a detail of Figure 1, in which the fins 7 have been removed.
  • the section 41 of the manifold 4 is located in the interplate space 3 located between the upper plate 1 and the plate lower 2.
  • An annular space 5 for outward flow of the table cooking is located between the upper part of the section 41 of the collector 4 and the upper plate 1.
  • the annular space 5 as the section of the collector 4 are advantageously circular; other forms, however less advantageous, are also possible.
  • a fitting 8 tightly joins the lower part of the section 41 of manifold 4 to the bottom plate 2.
  • the manifold 4 has an exterior surface 42 on the exterior from which the second gaseous fluid progresses.
  • the flow of the second gaseous fluid is represented by arrows in solid lines. This flow has, in the absence of the fins 7, a rotational component important. Indeed, the second gaseous fluid rotates so important around section 41 of collector 4 in its progression towards the annular space 5.
  • Figure 3 shows the same detail as in Figure 2, the fins 7 having been added.
  • the arrows represent the flow of the second gaseous fluid outside the manifold 4, along the outer surface 42 of the manifold 4.
  • the axis A of the section 41 of the manifold 4 is shown in lines mixed.
  • the collector 4 does not necessarily have any particular symmetry, in which case the axis A is the mean direction of the manifold 4.
  • This axis A is preferably perpendicular to the mean plane of the upper plates 1 and lower 2, that is to say that the axis A is vertical in FIG. 3 by example.
  • the presence of the fins 7 makes it possible to reduce or eliminate the rotational component which appeared on figure 2.
  • fins 7 makes it possible to obtain a flow substantially parallel to the axis A of the section 41 of manifold 4, that is to say having a component substantially zero rotational.
  • the optimum is reached when the rotational component is zero, that is to say when the flow of the second gaseous fluid is parallel to the axis A of the section 41 of manifold 4.
  • the fins 7 are directed substantially parallel to the axis A of the section 41 of the manifold 4, the optimum being when the fins 7 are parallel to the axis A of the section 41 collector 4.
  • the fins 7 distributed around the section 41 of manifold 4 are substantially planar, planar fins constituting an optimum.
  • the character substantially plane of the fins 7 and their direction substantially parallel to axis A of section 41 of manifold 4, contribute to channeling the flow of second gaseous fluid substantially parallel to the axis A of the section 41 of manifold 4, thereby reducing or eliminating the rotational component of the flow of the second gaseous fluid.
  • the fins 7 are preferably substantially perpendicular to the outer surface 42 of the manifold 4, the optimum being reached when the fins are perpendicular to the outer surface 42 of the collector 4.
  • the fins 7 are preferably rectangular, but they can also be beveled.
  • the height h of the fins is substantially equal to the height H of the interplate space 3.
  • the fins 7 are preferably closer to the upper plate 1 than to the lower plate 2.
  • the length I of the fins 7 is for example greater than the width r of the annular space 5.
  • the fins 7 extend radially from the space ring 5 as in Figure 3.
  • the fins 7 are preferably at least at least five distributed around the collector 4. Furthermore, for the same purpose, the fins 7 are advantageously regularly distributed around the manifold 4, that is to say that the distribution of the fins 7 around the manifold 4 is advantageously as periodically as possible.
  • the fins 7 preferably constitute a part independent in the form of a ring which can be mounted on the manifold 4. For this, the fins 7 are interconnected so united.
  • the fins 7 are for example connected to each other from below, at using parts 70 as in FIG. 3.
  • the independent ring made up by the fins 7 and the connecting parts 70 is for example a part molded in one piece.
  • the fins 7 form an integral part of the manifold 4 so that the fins 7 and the manifold 4 form only one single piece.
  • the fins 7 do not form preferably with the section 41 of the collector 4 only one piece monobloc.
  • the assembly constituted by the section 41 of the collector 4 and the fins 7 then advantageously constitutes an independent part of the part of the manifold 4 located under the bottom plate 2.
  • the fins 7 are interconnected integrally.
  • the fins 7 are advantageously connected to each other from above, using a ring circular covering from the outside surface of section 41 of the manifold 4 part of the annular space 5, preferably less than the half of the surface of the annular space 5.
  • the height h of the fins is greater than the height H of the interplate space, and exceeds even slightly the upper plate 1 which is advantageously a ceramic hob.
  • the length I of the fins 7 is preferably less than the width r of the annular space 5, thus allowing mounting easy of the assembly constituted by the section 41 of manifold 4 and by the fins 7, assembly which can then be carried out from above, that is to say by the circular opening 5 that the plate has in this embodiment upper 1.
  • said assembly constituted both by said ring and by said collector section consists of a single molded part easily achievable industrially.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Baking, Grill, Roasting (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The cooker hob, consisting of upper (1) and lower (2) plates with a gap (3) between them, and a collector (4) for the circulation of a first gas, a section (41) of which projects into the gap, has an annular space (5) between the top plate and collector section permitting the outward circulation of a second gas. The collector section has a series of flat fins (7) positioned radially round it with their sides parallel to the collector's axis which allow the second gas flow, created by a fan, to circulate with virtually no radial component.

Description

L'invention concerne le domaine des tables de cuisson gaz, et notamment les tables de cuisson domestique gaz. Généralement les tables de cuisson gaz contiennent un ou plusieurs collecteurs amenant un premier fluide gazeux, par exemple un mélange de gaz et d'air primaire, à un ou plusieurs brûleurs correspondants.The invention relates to the field of gas cooktops, and including domestic gas cooktops. Usually tables cooking gas contain one or more collectors bringing a first gaseous fluid, for example a mixture of gas and primary air, at one or several corresponding burners.

Selon un art antérieur, les tables de cuisson gaz utilisent également, pour l'alimentation de la flamme du ou des brûleurs, un deuxième fluide gazeux, par exemple de l'air secondaire.According to a prior art, gas hobs use also, for feeding the flame of the burner (s), a second gaseous fluid, for example secondary air.

Il peut alors être intéressant pour réduire la distance entre la plaque supérieure et le fond des casserroles utilisées, d'amener au niveau du brûleur le deuxième fluide gazeux par en-dessous du brûleur.It may then be useful to reduce the distance between the top plate and the bottom of the casserroles used, to bring it to the level from the burner the second gaseous fluid from below the burner.

Un inconvénient de ces tables de cuisson, dans le cas où le deuxième fluide gazeux arrive par en-dessous du brûleur, est que ce deuxième fluide gazeux arrivant au niveau de la flamme du brûleur perturbe cette flamme, par exemple en détruisant sa symétrie, ce qui peut entraíner une augmentation sensible de l'émission de gaz polluants tels que le monoxyde de carbone par exemple.A disadvantage of these cooktops, in case the second gaseous fluid arrives from below the burner, is that this second gaseous fluid arriving at the level of the burner flame disturbs this flame, for example by destroying its symmetry, which can cause a significant increase in the emission of polluting gases such as carbon monoxide for example.

L'invention propose une solution pour réduire ou supprimer cette perturbation de la flamme du brûleur. L'écoulement du deuxième fluide gazeux s'effectue par un espace annulaire. A l'aide d'ailettes réparties autour du ou des collecteurs, la composante rotationnelle de l'écoulement du deuxième fluide gazeux est réduite ou supprimée. Ainsi, la flamme du brûleur est peu ou pas perturbée.The invention provides a solution to reduce or eliminate this disturbance of the burner flame. The flow of the second fluid gas is carried out through an annular space. Using distributed fins around the collector (s), the rotational component of the flow of the second gaseous fluid is reduced or eliminated. So the flame of little or no disturbance to the burner.

Selon l'invention, il est prévu une table de cuisson gaz comportant : une plaque inférieure et une plaque supérieure séparées par un espace interplaque ; au moins un collecteur dans lequel peut circuler un premier fluide gazeux et dont au moins un tronçon est situé dans l'espace interplaque ; caractérisé en ce que la table de cuisson comporte aussi : un espace annulaire situé entre la plaque supérieure et le tronçon de collecteur, un deuxième fluide gazeux pouvant circuler de l'espace interplaque vers l'extérieur de la table de cuisson en s'écoulant par l'espace annulaire ; plusieurs ailettes sensiblement planes réparties autour du tronçon de collecteur et dirigées sensiblement parallèlement à l'axe du tronçon de collecteur de manière à ce que le deuxième fluide gazeux puisse s'écouler au niveau de l'espace annulaire avec une composante rotationnelle sensiblement nulle.According to the invention, a gas hob is provided. comprising: a lower plate and an upper plate separated by a interplate space; at least one collector in which a first gaseous fluid and at least one section of which is located in space interplate; characterized in that the hob also includes: a annular space located between the upper plate and the manifold section, a second gaseous fluid capable of flowing from the interplate space to the outside of the hob, flowing through the annular space; several substantially flat fins distributed around the section of collector and directed substantially parallel to the axis of the section of manifold so that the second gaseous fluid can flow at the annular space with a rotational component substantially zero.

L'invention sera mieux comprise et d'autres particularités et avantages apparaítront à l'aide de la description ci-après et des dessins joints, donnés à titre d'exemples, où :

  • la figure 1 représente schématiquement un mode de réalisation d'une table de cuisson gaz selon l'invention ;
  • la figure 2 représente schématiquement un détail de la figure 1 sur lequel les ailettes ont été enlevées ;
  • la figure 3 représente schématiquement un détail de la figure 1 avec une réalisation particulière et préférentielle des ailettes.
The invention will be better understood and other features and advantages will become apparent with the aid of the description below and of the attached drawings, given by way of examples, in which:
  • Figure 1 schematically shows an embodiment of a gas hob according to the invention;
  • Figure 2 schematically shows a detail of Figure 1 on which the fins have been removed;
  • Figure 3 schematically shows a detail of Figure 1 with a particular and preferred embodiment of the fins.

La figure 1 représente schématiquement un exemple de table de cuisson gaz selon l'invention. La table de cuisson est représentée en coupe. Les flèches en traits pointillés représentent l'écoulement d'un premier fluide gazeux qui est par exemple un mélange de gaz et d'air primaire. Les flèches en traits pleins représentent l'écoulement d'un deuxième fluide gazeux qui est par exemple de l'air secondaire. La table de cuisson est délimitée par une plaque supérieure 1 et une plaque inférieure 2. Entre les plaques inférieure 2 et supérieure 1 se trouve un espace interplaque 3. Soit zc la zone centrale de la table de cuisson, c'est-à-dire la zone centrale aussi bien des plaques 1 et 2 que de l'espace interplaque 3 et soit zp la zone périphérique de la table de cuisson, c'est-à-dire la zone périphérique aussi bien des plaques 1 et 2 que de l'espace interplaque 3, la zone périphérique zp entourant la zone centrale zc. La table de cuisson comporte au moins un collecteur 4. La table de cuisson est préférentiellement rectangulaire ou carrée et possède avantageusement quatre collecteurs situés au niveau de la zone périphérique zp de la table de cuisson, par exemple un au niveau de chaque angle de la table de cuisson. Le collecteur 4 comprend un tronçon 41 de collecteur situé dans l'espace interplaque 3. Entre la plaque supérieure 1 et le collecteur 4 se trouve un espace annulaire 5. De préférence un dispositif 6 de ventilation génère l'écoulement du deuxième fluide gazeux vers l'espace interplaque 3. Ce dispositif 6 de ventilation est avantageusement constitué par un ventilateur 6 situé sous la zone centrale zc de la plaque inférieure 2. Autour du collecteur 4, sont réparties des ailettes 7. Les ailettes 7 seront décrites plus en détail au niveau de la figure 3. Le raccord 8 entre la plaque inférieure 2 et le collecteur 4 est préférentiellement étanche. L'espace interplaque 3 est préférentiellement délimité, radialement, vers l'extérieur de la table de cuisson, par un joint 9 qui relie de manière étanche les plaques supérieure 1 et inférieure 2. H est la hauteur de l'espace interplaque 3.Figure 1 schematically shows an example of a table gas cooking according to the invention. The hob is shown in section. The arrows in dotted lines represent the flow of a first fluid gaseous which is for example a mixture of gas and primary air. The arrows in solid lines represent the flow of a second gaseous fluid which is for example secondary air. The hob is delimited by an upper plate 1 and a lower plate 2. Between the plates lower 2 and upper 1 is an interplate space 3. Let zc be central zone of the hob, i.e. the central zone as well plates 1 and 2 as interplate space 3 and let zp be the area peripheral of the hob, i.e. the peripheral zone also many plates 1 and 2 as well as interplate space 3, the peripheral zone zp surrounding the central area zc. The hob has at least one collector 4. The hob is preferably rectangular or square and advantageously has four collectors located at the peripheral zone zp of the hob, for example one at each corner of the hob. The collector 4 comprises a section 41 of collector located in the interplate space 3. Between the plate upper 1 and the manifold 4 is an annular space 5. Of preferably a ventilation device 6 generates the flow of the second gaseous fluid towards the interplate space 3. This ventilation device 6 is advantageously constituted by a fan 6 located under the central area zc of the bottom plate 2. Around the manifold 4, are distributed fins 7. The fins 7 will be described in more detail in the figure. 3. The connection 8 between the bottom plate 2 and the manifold 4 is preferably waterproof. Interplate space 3 is preferably delimited, radially, towards the outside of the hob, by a seal 9 which tightly connects the upper 1 and lower 2 plates. H is the height of the interplate space 3.

Le premier fluide gazeux, par exemple un mélange de gaz et d'air primaire, s'écoule dans le collecteur 4. Cet écoulement est représenté par les flèches en traits pointillés. A la sortie du collecteur 4, est situé un brûleur non représenté ici au niveau duquel est située la flamme alimentée à la fois par le premier et le deuxième fluides gazeux. Le deuxième fluide gazeux, par exemple de l'air secondaire, s'écoule au travers de l'espace interplaque 3. Cet écoulement est représenté par les flèches en traits pleins. Le deuxième fluide gazeux passe par le ventilateur 6, arrive dans la zone centrale zc de l'espace interplaque 3, et s'écoule le long du ou des tronçons 41 de collecteur par le ou les espaces annulaires 5 hors de l'espace interplaque 3. Après être passé par l'espace annulaire 5, le deuxième fluide gazeux est dirigé vers le brûleur non représenté ici pour alimenter avec le premier fluide gazeux la flamme de ce brûleur.The first gaseous fluid, for example a mixture of gas and air primary, flows into the collector 4. This flow is represented by arrows in dotted lines. At the outlet of the collector 4, is located a burner not shown here at the level of which is located the flame fed at the same time by the first and second gaseous fluids. The second gaseous fluid, by example of secondary air, flows through the interplate space 3. This flow is represented by the arrows in solid lines. The second gaseous fluid passes through the fan 6, arrives in the central zone zc of the interplate space 3, and flows along the section or sections 41 of collector by the annular space or spaces 5 outside the interplate space 3. After passing through the annular space 5, the second gaseous fluid is directed to the burner not shown here to supply with the first fluid gaseous the flame of this burner.

La figure 2 représente un détail de la figure 1, sur lequel les ailettes 7 ont été supprimées. Le tronçon 41 du collecteur 4 est situé dans l'espace interplaque 3 situé entre la plaque supérieure 1 et la plaque inférieure 2. Un espace annulaire 5 d'écoulement vers l'extérieur de la table de cuisson est situé entre la partie haute du tronçon 41 de collecteur 4 et la plaque supérieure 1. L'espace annulaire 5 comme la section du collecteur 4 sont avantageusement circulaires; cependant d'autres formes, quoique moins avantageuses, sont également possibles. De préférence, un raccord 8 joint de manière étanche la partie basse du tronçon 41 de collecteur 4 à la plaque inférieure 2. Le collecteur 4 a une surface extérieure 42 à l'extérieur de laquelle progresse le deuxième fluide gazeux. L'écoulement du deuxième fluide gazeux est représenté par des flèches en traits pleins. Cet écoulement présente, en l'absence des ailettes 7, une composante rotationnelle importante. En effet, le deuxième fluide gazeux tourne de manière importante autour du tronçon 41 de collecteur 4 dans sa progression vers l'espace annulaire 5.Figure 2 shows a detail of Figure 1, in which the fins 7 have been removed. The section 41 of the manifold 4 is located in the interplate space 3 located between the upper plate 1 and the plate lower 2. An annular space 5 for outward flow of the table cooking is located between the upper part of the section 41 of the collector 4 and the upper plate 1. The annular space 5 as the section of the collector 4 are advantageously circular; other forms, however less advantageous, are also possible. Preferably, a fitting 8 tightly joins the lower part of the section 41 of manifold 4 to the bottom plate 2. The manifold 4 has an exterior surface 42 on the exterior from which the second gaseous fluid progresses. The flow of the second gaseous fluid is represented by arrows in solid lines. This flow has, in the absence of the fins 7, a rotational component important. Indeed, the second gaseous fluid rotates so important around section 41 of collector 4 in its progression towards the annular space 5.

La figure 3 montre le même détail qu'à la figure 2, les ailettes 7 ayant été rajoutées. Les flèches représentent l'écoulement du deuxième fluide gazeux à l'extérieur du collecteur 4, le long de la surface extérieure 42 du collecteur 4. L'axe A du tronçon 41 de collecteur 4 est représenté en traits mixtes. Le collecteur 4 ne présente pas forcément de symétrie particulière, auquel cas l'axe A est la direction moyenne du collecteur 4. Cet axe A est préférentiellement perpendiculaire au plan moyen des plaques supérieure 1 et inférieure 2, c'est-à-dire que l'axe A est vertical sur la figure 3 par exemple. La présence des ailettes 7 permet de réduire ou de supprimer la composante rotationnelle qui apparaissait sur la figure 2. La présence des ailettes 7 permet d'obtenir un écoulement sensiblement parallèle à l'axe A du tronçon 41 de collecteur 4, c'est-à-dire présentant une composante rotationnelle sensiblement nulle. L'optimum étant atteint lorsque la composante rotationnelle est nulle, c'est-à-dire lorsque l'écoulement du deuxième fluide gazeux est parallèle à l'axe A du tronçon 41 de collecteur 4. Pour réduire ou supprimer cette composante rotationnelle, les ailettes 7 sont dirigés sensiblement parallèlement à l'axe A du tronçon 41 de collecteur 4, l'optimum étant lorsque les ailettes 7 sont parallèles à l'axe A du tronçon 41 de collecteur 4. Pour contribuer également à réduire ou supprimer la composante rotationnelle de l'écoulement du deuxième fluide gazeux, les ailettes 7 réparties autour du tronçon 41 de collecteur 4 sont sensiblement planes, des ailettes planes constituant un optimum. Le caractère sensiblement plan des ailettes 7 et leur direction sensiblement parallèle à l'axe A du tronçon 41 de collecteur 4, contribuent à canaliser l'écoulement du deuxième fluide gazeux sensiblement parallèlement à l'axe A du tronçon 41 de collecteur 4, réduisant ou supprimant ainsi la composante rotationnelle de l'écoulement du deuxième fluide gazeux. Afin de réduire de manière encore plus sensible la composante rotationnelle de l'écoulement du deuxième fluide gazeux, les ailettes 7 sont préférentiellement sensiblement perpendiculaires à la surface extérieure 42 du collecteur 4, l'optimum étant atteint lorsque les ailettes sont perpendiculaires à la surface extérieure 42 du collecteur 4. Figure 3 shows the same detail as in Figure 2, the fins 7 having been added. The arrows represent the flow of the second gaseous fluid outside the manifold 4, along the outer surface 42 of the manifold 4. The axis A of the section 41 of the manifold 4 is shown in lines mixed. The collector 4 does not necessarily have any particular symmetry, in which case the axis A is the mean direction of the manifold 4. This axis A is preferably perpendicular to the mean plane of the upper plates 1 and lower 2, that is to say that the axis A is vertical in FIG. 3 by example. The presence of the fins 7 makes it possible to reduce or eliminate the rotational component which appeared on figure 2. The presence of fins 7 makes it possible to obtain a flow substantially parallel to the axis A of the section 41 of manifold 4, that is to say having a component substantially zero rotational. The optimum is reached when the rotational component is zero, that is to say when the flow of the second gaseous fluid is parallel to the axis A of the section 41 of manifold 4. To reduce or eliminate this rotational component, the fins 7 are directed substantially parallel to the axis A of the section 41 of the manifold 4, the optimum being when the fins 7 are parallel to the axis A of the section 41 collector 4. To also help reduce or eliminate the rotational component of the flow of the second gaseous fluid, the fins 7 distributed around the section 41 of manifold 4 are substantially planar, planar fins constituting an optimum. The character substantially plane of the fins 7 and their direction substantially parallel to axis A of section 41 of manifold 4, contribute to channeling the flow of second gaseous fluid substantially parallel to the axis A of the section 41 of manifold 4, thereby reducing or eliminating the rotational component of the flow of the second gaseous fluid. In order to further reduce more sensitive the rotational component of the flow of the second gaseous fluid, the fins 7 are preferably substantially perpendicular to the outer surface 42 of the manifold 4, the optimum being reached when the fins are perpendicular to the outer surface 42 of the collector 4.

Soit h la hauteur des ailettes 7 et soit l la longueur des ailettes 7. Les ailettes 7 sont préférentiellement rectangulaires, mais elles peuvent aussi être biseautées. Par exemple, la hauteur h des ailettes est sensiblement égale à la hauteur H de l'espace interplaque 3. Dans le cas moins efficace où la hauteur h des ailettes est substantiellement inférieure à la hauteur H de l'espace interplaque 3, les ailettes 7 sont préférentiellement plus proches de la plaque supérieure 1 que de la plaque inférieure 2. La longueur I des ailettes 7 est par exemple supérieure à la largeur r de l'espace annulaire 5. Ainsi, les ailettes 7 débordent radialement de l'espace annulaire 5 comme sur la figure 3.Either h the height of the fins 7 and l the length of the fins 7. The fins 7 are preferably rectangular, but they can also be beveled. For example, the height h of the fins is substantially equal to the height H of the interplate space 3. In the case less efficient where the height h of the fins is substantially less than the height H of the interplate space 3, the fins 7 are preferably closer to the upper plate 1 than to the lower plate 2. The length I of the fins 7 is for example greater than the width r of the annular space 5. Thus, the fins 7 extend radially from the space ring 5 as in Figure 3.

Afin d'obtenir un écoulement du deuxième fluide gazeux avec une composante rotationnelle suffisamment faible pour le type de table de cuisson considéré, les ailettes 7 sont de préférence au nombre d'au moins cinq réparties autour du collecteur 4. Par ailleurs, dans le même but, les ailettes 7 sont avantageusement régulièrement réparties autour du collecteur 4, c'est-à-dire que la répartition des ailettes 7 autour du collecteur 4 est avantageusement la plus périodique possible.In order to obtain a flow of the second gaseous fluid with a sufficiently low rotational component for the type of table cooking considered, the fins 7 are preferably at least at least five distributed around the collector 4. Furthermore, for the same purpose, the fins 7 are advantageously regularly distributed around the manifold 4, that is to say that the distribution of the fins 7 around the manifold 4 is advantageously as periodically as possible.

Les ailettes 7 constituent préférentiellement une pièce indépendante ayant la forme d'une bague qui peut être montée sur le collecteur 4. Pour cela, les ailettes 7 sont reliées entre elles de manière solidaire. Les ailettes 7 sont par exemple reliées entre elles par le bas, à l'aide de pièces 70 comme sur la figure 3. La bague indépendante constituée par les ailettes 7 et les pièces de liaison 70 est par exemple une pièce moulée monobloc.The fins 7 preferably constitute a part independent in the form of a ring which can be mounted on the manifold 4. For this, the fins 7 are interconnected so united. The fins 7 are for example connected to each other from below, at using parts 70 as in FIG. 3. The independent ring made up by the fins 7 and the connecting parts 70 is for example a part molded in one piece.

Dans une autre variante de réalisation préférentielle, les ailettes 7 font partie intégrante du collecteur 4 de manière à ce que les ailettes 7 et le collecteur 4 ne forment qu'une seule pièce monobloc.In another preferred embodiment, the fins 7 form an integral part of the manifold 4 so that the fins 7 and the manifold 4 form only one single piece.

Dans un mode supplémentaire et préférentiel de réalisation de l'invention de la table de cuisson selon l'invention, les ailettes 7 ne forment préférentiellement avec le tronçon 41 du collecteur 4 qu'une seule pièce monobloc. L'ensemble constitué par le tronçon 41 du collecteur 4 et les ailettes 7 constitue alors avantageusement une pièce indépendante de la partie du collecteur 4 se trouvant située sous la plaque inférieure 2. Pour cela, les ailettes 7 sont reliées entre elles de manière solidaire. Les ailettes 7 sont avantageusement reliées entre elles par le haut, à l'aide d'un anneau circulaire couvrant à partir de la surface extérieure du tronçon 41 du collecteur 4 une partie de l'espace annulaire 5, de préférence moins de la moitié de la surface de l'espace annulaire 5. De préférence, la hauteur h des ailettes est supérieure à la hauteur H de l'espace interplaque, et dépasse même légèrement la plaque supérieure 1 qui est avantageusement une plaque vitrocéramique. La longueur I des ailettes 7 est de préférence inférieure à la largeur r de l'espace annulaire 5, permettant ainsi un montage aisé de l'ensemble constitué par le tronçon 41 de collecteur 4 et par les ailettes 7, montage pouvant alors être effectué par le haut, c'est-à-dire par l'ouverture circulaire 5 que présente dans ce mode de réalisation la plaque supérieure 1. Ainsi ledit ensemble constitué à la fois par ladite bague et par ledit tronçon de collecteur est constitué d'une pièce unique moulée facilement réalisable industriellement.In an additional and preferred embodiment of the invention of the hob according to the invention, the fins 7 do not form preferably with the section 41 of the collector 4 only one piece monobloc. The assembly constituted by the section 41 of the collector 4 and the fins 7 then advantageously constitutes an independent part of the part of the manifold 4 located under the bottom plate 2. To that, the fins 7 are interconnected integrally. The fins 7 are advantageously connected to each other from above, using a ring circular covering from the outside surface of section 41 of the manifold 4 part of the annular space 5, preferably less than the half of the surface of the annular space 5. Preferably, the height h of the fins is greater than the height H of the interplate space, and exceeds even slightly the upper plate 1 which is advantageously a ceramic hob. The length I of the fins 7 is preferably less than the width r of the annular space 5, thus allowing mounting easy of the assembly constituted by the section 41 of manifold 4 and by the fins 7, assembly which can then be carried out from above, that is to say by the circular opening 5 that the plate has in this embodiment upper 1. Thus said assembly constituted both by said ring and by said collector section consists of a single molded part easily achievable industrially.

Claims (12)

Table de cuisson gaz comportant : une plaque inférieure (2) et une plaque supérieure (1) séparées par un espace interplaque (3) ; au moins un collecteur (4) dans lequel peut circuler un premier fluide gazeux et dont au moins un tronçon (41) est situé dans l'espace interplaque (3) ;    caractérisé en ce que la table de cuisson comporte aussi : un espace annulaire (5) situé entre la plaque supérieure (1) et le tronçon (41) de collecteur (4), un deuxième fluide gazeux pouvant circuler de l'espace interplaque (3) vers l'extérieur de la table de cuisson en s'écoulant par l'espace annulaire (5); plusieurs ailettes (7) sensiblement planes réparties autour du tronçon (41) de collecteur (4) et dirigées sensiblement parallèlement à l'axe (A) du tronçon (41) de collecteur (4) de manière à ce que le deuxième fluide gazeux puisse s'écouler au niveau de l'espace annulaire (5) avec une composante rotationnelle sensiblement nulle. Gas hob comprising: a lower plate (2) and an upper plate (1) separated by an interplate space (3); at least one manifold (4) in which a first gaseous fluid can flow and at least one section (41) of which is located in the interplate space (3); characterized in that the hob also includes: an annular space (5) located between the upper plate (1) and the section (41) of manifold (4), a second gaseous fluid being able to circulate from the interplate space (3) towards the outside of the hob in flowing through the annular space (5); several substantially planar fins (7) distributed around the section (41) of manifold (4) and directed substantially parallel to the axis (A) of the section (41) of manifold (4) so that the second gaseous fluid can flow at the level of the annular space (5) with a substantially zero rotational component. Table de cuisson gaz selon la revendication 1, caractérisé en ce que la table de cuisson comporte aussi un dispositif (6) de ventilation générant l'écoulement du deuxième fluide gazeux vers l'espace interplaque (3).Gas hob according to claim 1, characterized in that the hob also has a ventilation device (6) generating the flow of the second gaseous fluid towards the interplate space (3). Table de cuisson gaz selon la revendication 2, caractérisé en ce que le dispositif (6) de ventilation est un ventilateur (6) situé sous la zone centrale (zc) de la plaque inférieure (2) et en ce que la table de cuisson comporte plusieurs collecteurs (4) répartis dans la zone périphérique (zp) de l'espace interplaque (3).Gas hob according to claim 2, characterized in what the ventilation device (6) is a fan (6) located under the area central (zc) of the lower plate (2) and in that the hob comprises several collectors (4) distributed in the peripheral zone (zp) of the interplate space (3). Table de cuisson gaz selon l'une quelconque des revendications précédentes, caractérisé en ce que les ailettes (7) sont sensiblement perpendiculaires à la surface extérieure (42) du collecteur (4). Gas hob according to any one of previous claims, characterized in that the fins (7) are substantially perpendicular to the outer surface (42) of the manifold (4). Table de cuisson gaz selon l'une quelconque des revendications précédentes, caractérisé en ce que les ailettes (7) présentent une hauteur (h) supérieure à la hauteur (H) de l'espace interplaque (3).Gas hob according to any one of previous claims, characterized in that the fins (7) have a height (h) greater than the height (H) of the interplate space (3). Table de cuisson gaz selon l'une quelconque des revendications précédentes, caractérisé en ce que les ailettes (7) sont régulièrement espacées autour du collecteur (4).Gas hob according to any one of previous claims, characterized in that the fins (7) are regularly spaced around the manifold (4). Table de cuisson gaz selon l'une quelconque des revendications précédentes, caractérisé en ce que au moins cinq ailettes (7) sont réparties autour du collecteur (4).Gas hob according to any one of previous claims, characterized in that at least five fins (7) are distributed around the collector (4). Table de cuisson gaz selon l'une quelconque des revendications précédentes, caractérisé en ce que les ailettes (7) ont une longueur (I) qui est de préférence inférieure à la largeur (r) de l'espace annulaire (5).Gas hob according to any one of previous claims, characterized in that the fins (7) have a length (I) which is preferably less than the width (r) of the space annular (5). Table de cuisson gaz selon l'une quelconque des revendications précédentes, caractérisé en ce que les ailettes (7) sont reliées entre elles de manière à former une bague indépendante pouvant être montée autour du collecteur (4).Gas hob according to any one of previous claims, characterized in that the fins (7) are interconnected so as to form an independent ring that can be mounted around the manifold (4). Table de cuisson gaz selon la revendication 9, caractérisé en ce que les ailettes (7) sont reliées entre elles par le haut par l'intermédiaire d'un anneau couvrant seulement une partie de l'espace annulaire (5) .Gas hob according to claim 9, characterized in that the fins (7) are connected to each other from above through a ring covering only part of the annular space (5). Table de cuisson gaz selon l'une quelconque des revendications 1 à 8, caractérisé en ce que les ailettes (7) font partie intégrante du collecteur (4) de manière à former une seule pièce monobloc.Gas hob according to any one of Claims 1 to 8, characterized in that the fins (7) are part integral with the manifold (4) so as to form a single piece. Table de cuisson gaz selon l'une quelconque des revendications précédentes, caractérisé en ce que le raccord (8) entre la plaque inférieure (2) et chacun des collecteurs (4) est étanche et en ce que la zone périphérique (zp) de l'espace interplaque (3) est délimitée vers l'extérieur de la table de cuisson par un joint étanche (9) reliant les deux plaques (1, 2).Gas hob according to any one of previous claims, characterized in that the connection (8) between the lower plate (2) and each of the collectors (4) is waterproof and in that the peripheral zone (zp) of the interplate space (3) is delimited towards the outside of the hob by a tight seal (9) connecting the two plates (1, 2).
EP20000403376 1999-12-10 2000-12-01 Gas cooking plate Expired - Lifetime EP1106930B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9915622A FR2802289B1 (en) 1999-12-10 1999-12-10 GAS HOB
FR9915622 1999-12-10

Publications (2)

Publication Number Publication Date
EP1106930A1 true EP1106930A1 (en) 2001-06-13
EP1106930B1 EP1106930B1 (en) 2003-09-10

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EP20000403376 Expired - Lifetime EP1106930B1 (en) 1999-12-10 2000-12-01 Gas cooking plate

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EP (1) EP1106930B1 (en)
DE (1) DE60005116D1 (en)
FR (1) FR2802289B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2668806T3 (en) * 2011-11-10 2018-05-22 Electrolux Home Products Corporation N.V. Burner rack, gas cooktop, gas cooker top and gas cooker

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2232482A (en) * 1938-04-30 1941-02-18 G & J Teller Cooking range
FR1024416A (en) * 1950-09-08 1953-04-01 Fonderies De La Seine Et De La Internal combustion burner for heating apparatus or other applications, and apparatus for its implementation
EP0581655A1 (en) * 1992-07-28 1994-02-02 Compagnie Europeenne Pour L'equipement Menager "Cepem" Gas cooker with atmospheric burners

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2232482A (en) * 1938-04-30 1941-02-18 G & J Teller Cooking range
FR1024416A (en) * 1950-09-08 1953-04-01 Fonderies De La Seine Et De La Internal combustion burner for heating apparatus or other applications, and apparatus for its implementation
EP0581655A1 (en) * 1992-07-28 1994-02-02 Compagnie Europeenne Pour L'equipement Menager "Cepem" Gas cooker with atmospheric burners

Also Published As

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FR2802289A1 (en) 2001-06-15
EP1106930B1 (en) 2003-09-10
DE60005116D1 (en) 2003-10-16
FR2802289B1 (en) 2002-02-22

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