EP0123131A1 - Domestic gas oven - Google Patents

Domestic gas oven Download PDF

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Publication number
EP0123131A1
EP0123131A1 EP84103043A EP84103043A EP0123131A1 EP 0123131 A1 EP0123131 A1 EP 0123131A1 EP 84103043 A EP84103043 A EP 84103043A EP 84103043 A EP84103043 A EP 84103043A EP 0123131 A1 EP0123131 A1 EP 0123131A1
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EP
European Patent Office
Prior art keywords
orifice
chimney
oven according
thermal
cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP84103043A
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German (de)
French (fr)
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EP0123131B1 (en
Inventor
Alain Gernez
Marcel Capy
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Compagnie Europeenne pour lEquipement Menager SA
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Compagnie Europeenne pour lEquipement Menager SA
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Publication of EP0123131A1 publication Critical patent/EP0123131A1/en
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Publication of EP0123131B1 publication Critical patent/EP0123131B1/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
    • F24C3/12—Arrangement or mounting of control or safety devices
    • F24C3/126—Arrangement or mounting of control or safety devices on ranges
    • F24C3/128—Arrangement or mounting of control or safety devices on ranges in baking ovens
    • 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
    • F24C15/00—Details
    • F24C15/001—Details arrangements for discharging combustion gases

Definitions

  • the invention relates to domestic gas ovens and in particular those comprising a cooking chamber, one wall of which has an orifice for the exhaust of fumes, said orifice opening into a discharge chimney connected to a fresh air inlet.
  • the present invention overcomes these drawbacks.
  • a domestic gas oven comprising a cooking chamber, one wall of which has an orifice for the exhaust of fumes, said orifice opening into a discharge chimney connected to a fresh air inlet, characterized in that 'It comprises on the one hand a first means for reducing the section of said orifice and simultaneously ensuring a circulation of fresh air in the chimney and on the other hand a second means automatically ensuring the implementation of said first means when the temperature reaches a predetermined value in the enclosure.
  • said first means comprises a pivoting flap disposed in said chimney and capable of taking two positions, a first position in which it prevents the flow of fresh air in the chimney and leaves completely open the orifice, a second position in which it partially closes the orifice and allows the circulation of fresh air in the chimney.
  • the second means ensuring the implementation of the first means may include a thermal cylinder associated with a temperature sensor, so as to ensure the operation of said cylinder, when the temperature in the enclosure reaches said predetermined value.
  • the flap is connected to a collar capable of sliding along a rod, a thermal cylinder being threaded on the rod, said cylinder, constituted by a wire made of a memory material thermal, wound in a helix, being retracted when the shutter is in the first position and expanded when the shutter is in the second position, said rod being secured to the sensor so as to convey calories which heat the thermal cylinder.
  • the reference 1 designates the oven cooking chamber. It is provided with a gas burner 2.
  • the rear wall 3 of the oven, opposite the door, has an orifice 4 intended for the exhaust of the fumes.
  • the wall 3 delimits with another wall 5 of the oven a chimney 6, rectangular, external to the cooking chamber 1, and which has a lower opening in communication with the fresh outside air to constitute a draft hood.
  • Reference 7 designates a movable flap located in the chimney 6 likely to pivot around a horizontal axis 8.
  • the reference 9 designates a temperature sensor placed on the wall 3 inside the cooking chamber 1.
  • the sensor 9 is thus placed on the smoke path near the orifice 4 for leaving the chamber 1
  • the reference 10 designates a rod, serving as a heat pipe and supporting a helical thermal cylinder 11, made of a thermal memory material and acting as a thermal cylinder.
  • the rod 10 is connected to the sensor 9 by one end and bears on the wall 5 by its other end.
  • the shutter 7 is connected to a collar 12 capable of sliding along the rod 10, so as to be able to pivot around the axis 8 when the collar 12 moves on the rod 10.
  • the thermal memory material constituting the jack 11 is advantageously chosen from the group formed by alloys whose austenitic structure changes to martensitic structure for a determined temperature, the most common being, for example, brass type alloys with copper content can vary from 55 to 80% and the addition of aluminum from 2 to 8%, the rest consisting essentially of zinc.
  • the rod 10 also carries an opposing spring 13 made of ordinary metal.
  • the spring 13 and the thermal cylinder 11 are located on either side of the collar 12 connected to the flap 7.
  • the axis 8 around which the flap 7 pivots is located below the rod 10, itself being below the orifice 4.
  • the dimensions of the smoke outlet orifice 4 are large enough to allow their expansion to be rapid enough not to disturb the operation of the burner and the draft s 'establishes.
  • the position of the flap 7 ensures a shape at the base of the chimney 6, favorable to the flow of smoke.
  • the temperature sensor 9 transmits the heat provided by the combustion products to the heat pipe 10 and raises the temperature of the memory thermal cylinder 11 until it reaches the temperature at which it expands by bringing the shutter 7 to the second position. balanced.
  • the flap 7 partially closes the outlet orifice 4 for the smoke from the enclosure in the chimney flue 6, so as to give it the optimum value for the operation of the burner while reducing losses as strictly as necessary. It also closes a possible annex orifice (not shown) located between the rod 10 serving as a heat pipe and the axis 8. Simultaneously the draft stop is open which reduces the losses.
  • the fresh air mixing with the fumes reduces their temperature on leaving the atmosphere. This fresh air passes around the thermal cylinder and the heat pipe. It allows the excess heat provided by the heat pipe to be evacuated as a result of the rise in temperature of the fumes in the enclosure. This prevents the thermal cylinder from being brought to a temperature at which it risks losing its properties.
  • the thermal cylinder regains its characteristics from the cold state and again puts the shutter 7 in the ignition position. This increases the smoke outlet section and has the effect of reducing the temperature inside the enclosure without compromising the operation of the burner.
  • This application can be extended to all types of heating chambers and to various types of fuel.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Combustion (AREA)

Abstract

1. Domestic gas oven comprising an oven compartment (1) one wall (3) of which has an orifice (4) for venting of combustion gases opening into a chimney (6) which is connected to a fresh-air intake, characterised in that, on the one hand, it comprises a first device (7) which, when in a first operative state, fully opens the orifice to the chimney and, when in a second operative state, partially closes the orifice (4) and at the same time opens the fresh-air intake into the chimney (6) and, on the other hand, in conjunction with a temperature sensor it comprises a second device (9, 10, 11) which automatically effects the change of the operative condition of the first device (7) when the temperature in the oven compartment (1) has reached a predetermined value.

Description

L'invention concerne les fours domestiques à gaz et notamment ceux comportant une enceinte de cuisson dont une paroi présente un orifice pour l'échappement des fumées, ledit orifice débouchant dans une cheminée d'évacuation reliée à une arrivée d'air frais.The invention relates to domestic gas ovens and in particular those comprising a cooking chamber, one wall of which has an orifice for the exhaust of fumes, said orifice opening into a discharge chimney connected to a fresh air inlet.

Lorsqu'un brûleur fonctionne dans une enceinte fermée dans la période précédant l'établissement du tirage thermique de la cheminée, un recyclage des fumées dans l'air de combustion s'effectue. Lorsque le brûleur est alimenté en gaz naturel par suite du phénomène d'évanouissement, les flammes décollent du brûleur et le phénomène peut aller jusqu'à l'extinction. En effet, le gaz carbonique contenu dans les produits de combustion constitue un inhibiteur ralentissant la vitesse de combustion qui devient inférieure à la vitesse de sortie du mélange gazeux.When a burner operates in a closed enclosure in the period preceding the establishment of the thermal draft of the chimney, the smoke is recycled into the combustion air. When the burner is supplied with natural gas as a result of the fading phenomenon, the flames take off from the burner and the phenomenon can go as far as extinguishing. Indeed, the carbon dioxide contained in the combustion products constitutes an inhibitor slowing down the combustion speed which becomes lower than the exit speed of the gas mixture.

Lorsque le brûleur est équipé d'un dispositif de sécurité à l'extinction, celui-ci n'est plus influencé par la flamme et il y a interruption de l'arrivée du gaz au brûleur. En l'absence de ce dispositif, le brûleur s'éteint et le gaz qui s'échappe remplit l'enceinte qui peut alors exploser si une flamme se trouve à proximité.When the burner is fitted with an extinguishing safety device, this is no longer influenced by the flame and the gas supply to the burner is interrupted. In the absence of this device, the burner goes out and the escaping gas fills the enclosure which can then explode if a flame is nearby.

Pour éviter ces inconvénients on est conduit à dimensionner très largement la section de l'orifice de sortie situé généralement en partie haute de l'enceinte, ou à prévoir un orifice annexe situé en partie basse afin de permettre une évacuation rapide des produits de combustion. Toutefois ces deux disposition sont contraires à la bonne utilisation de l'énergie.To avoid these drawbacks, it is necessary to size the cross-section of the outlet orifice generally located in the upper part of the enclosure, or to provide an annex orifice situated in the lower part in order to allow rapid evacuation of the combustion products. However, these two provisions are contrary to the proper use of energy.

La présente invention permet de remédier à ces inconvénients.The present invention overcomes these drawbacks.

Elle a pour objet un four domestique à gaz comportant une enceinte de cuisson dont une paroi présente un orifice pour l'échappement des fumées, ledit orifice débouchant dans une cheminée d'évacuation reliée à une arrivée d'air frais, caractérisé par le fait qu'il comprend d'une part un premier moyen permettant de diminuer la section dudit orifice et d'assurer simultanément une circulation d'air frais dans la cheminée et d'autre part un second moyen assurant automatiquement la mise en oeuvre dudit premier moyen lorsque la température atteint une valeur prédéterminée dans l'enceinte.It relates to a domestic gas oven comprising a cooking chamber, one wall of which has an orifice for the exhaust of fumes, said orifice opening into a discharge chimney connected to a fresh air inlet, characterized in that 'It comprises on the one hand a first means for reducing the section of said orifice and simultaneously ensuring a circulation of fresh air in the chimney and on the other hand a second means automatically ensuring the implementation of said first means when the temperature reaches a predetermined value in the enclosure.

Selon un mode de réalisation conforme à l'invention, ledit premier moyen comporte un volet pivotant disposé dans ladite cheminée et susceptible de prendre deux positions, une première position dans laquelle il empêche l'écoulement de l'air frais dans la cheminée et laisse complètement ouvert l'orifice, une seconde position dans laquelle il obture partiellement l'orifice et autorise la circulation de l'air frais dans la cheminée.According to an embodiment according to the invention, said first means comprises a pivoting flap disposed in said chimney and capable of taking two positions, a first position in which it prevents the flow of fresh air in the chimney and leaves completely open the orifice, a second position in which it partially closes the orifice and allows the circulation of fresh air in the chimney.

Le deuxième moyen assurant la mise en oeuvre du premier moyen peut comporter un vérin thermique associé à un capteur de température, de manière à assurer le fonctionnement dudit vérin, lorsque la température dans l'enceinte atteint ladite valeur prédéterminée.The second means ensuring the implementation of the first means may include a thermal cylinder associated with a temperature sensor, so as to ensure the operation of said cylinder, when the temperature in the enclosure reaches said predetermined value.

Selon un mode d'exécution conforme à l'invention, le volet est relié à un collier susceptible de glisser le long d'une tige, un vérin thermique étant enfilé sur la tige, ledit vérin, constitué par un fil en un matériau à mémoire thermique, enroulé en hélice, étant rétracté lorsque le volet est dans la première position et expansé lorsque le volet est dans la seconde position, ladite tige étant solidarisée au capteur de manière à véhiculer des calories qui échauffent le vérin thermique.According to an embodiment according to the invention, the flap is connected to a collar capable of sliding along a rod, a thermal cylinder being threaded on the rod, said cylinder, constituted by a wire made of a memory material thermal, wound in a helix, being retracted when the shutter is in the first position and expanded when the shutter is in the second position, said rod being secured to the sensor so as to convey calories which heat the thermal cylinder.

D'autres caractéristiques d'une mise en oeuvre préférée de l'invention ressortiront de la description qui va suivre et du dessin annexé dans lequel :

  • - la figure 1 est une vue en coupe verticale schématique d'un four conforme à l'invention,
  • - la figure 2 représente à une échelle agrandie le détail II de la figure 1.
Other characteristics of a preferred implementation of the invention will emerge from the description which follows and from the appended drawing in which:
  • FIG. 1 is a schematic vertical section view of an oven according to the invention,
  • - Figure 2 shows on an enlarged scale the detail II of Figure 1.

Sur ces figures, la référence 1 désigne l'enceinte de cuisson du four. Elle est munie d'un brûleur à gaz 2. La paroi arrière 3 du four, opposée à la porte, comporte un orifice 4 destiné à l'échappement des fumées.In these figures, the reference 1 designates the oven cooking chamber. It is provided with a gas burner 2. The rear wall 3 of the oven, opposite the door, has an orifice 4 intended for the exhaust of the fumes.

La paroi 3 délimite avec une autre paroi 5 du four une cheminée 6, rectangulaire, extérieure à l'enceinte de cuisson 1, et qui comporte une ouverture inférieure en communication avec l'air frais extérieur pour constituer un coupe-tirage.The wall 3 delimits with another wall 5 of the oven a chimney 6, rectangular, external to the cooking chamber 1, and which has a lower opening in communication with the fresh outside air to constitute a draft hood.

La référence 7 désigne un volet mobile situé dans la cheminée 6 susceptible de pivoter autour d'un axe 8 horizontal.Reference 7 designates a movable flap located in the chimney 6 likely to pivot around a horizontal axis 8.

La référence 9 désigne un capteur de température disposé sur la paroi 3 à l'intérieur de l'enceinte de cuisson 1. Le capteur 9 est ainsi placé sur le trajet des fumées à proximité de l'orifice 4 de sortie de l'enceinte 1. La référence 10 désigne une tige, servant de caloduc et supportant un vérin thermique hélicoidal 11, constitué par un matériau à mémoire thermique et agissant en tant que vérin thermique. La tige 10 est reliée au capteur 9 par une extrémité et porte sur la paroi 5 par son autre extrémité.The reference 9 designates a temperature sensor placed on the wall 3 inside the cooking chamber 1. The sensor 9 is thus placed on the smoke path near the orifice 4 for leaving the chamber 1 The reference 10 designates a rod, serving as a heat pipe and supporting a helical thermal cylinder 11, made of a thermal memory material and acting as a thermal cylinder. The rod 10 is connected to the sensor 9 by one end and bears on the wall 5 by its other end.

Le volet 7 est relié à un collier 12 susceptible de glisser le long de la tige 10, de manière à pouvoir pivoter autour de l'axe 8 lorsque le collier 12 se déplace sur la tige 10.The shutter 7 is connected to a collar 12 capable of sliding along the rod 10, so as to be able to pivot around the axis 8 when the collar 12 moves on the rod 10.

Le matériau à mémoire thermique constituant le vérin 11 est avantageusement choisi dans le groupe formé par des alliages dont la structure austénitique passe à la structure martensitique pour une température déterminée, les plus courants étant, par exemple, des alliages type laiton dont la teneur en cuivre peut varier de 55 à 80% et l'addition d'aluminium de 2 à 8%, le reste étant constitué essentiellement de zinc.The thermal memory material constituting the jack 11 is advantageously chosen from the group formed by alloys whose austenitic structure changes to martensitic structure for a determined temperature, the most common being, for example, brass type alloys with copper content can vary from 55 to 80% and the addition of aluminum from 2 to 8%, the rest consisting essentially of zinc.

Dans le mode de réalisation représenté, la tige 10 porte également un ressort antagoniste 13 en métal ordinaire. Le ressort 13 et le vérin thermique 11 sont situés de part et d'autre du collier 12 relié au volet 7.In the embodiment shown, the rod 10 also carries an opposing spring 13 made of ordinary metal. The spring 13 and the thermal cylinder 11 are located on either side of the collar 12 connected to the flap 7.

L'axe 8 autour duquel pivote le volet 7 est situé en dessous de la tige 10, elle même étant en dessous de l'orifice 4.The axis 8 around which the flap 7 pivots is located below the rod 10, itself being below the orifice 4.

Le volet 7 a la même largeur que la cheminée 6. Sa hauteur est telle qu'il peut obturer partiellement l'orifice de sortie 4 des gaz brulés de l'enceinte 1 dans la cheminée 6. Il a deux positions d'équilibre :

  • Lorsque l'ensemble est froid son arête supérieure repose contre la paroi arrière 5 de la cheminée 6 ; il dégage alors complètement l'orifice d'échappement 4 des produits de combustion et obture la cheminée 6 vers le bas interdisant l'arrivée d'air par le coupe-tirage.
The shutter 7 has the same width as the chimney 6. Its height is such that it can partially block the outlet orifice 4 of the burnt gases from the enclosure 1 in the chimney 6. It has two positions of equilibrium:
  • When the assembly is cold, its upper edge rests against the rear wall 5 of the chimney 6; it then completely clears the exhaust orifice 4 of the combustion products and closes the chimney 6 downwards preventing the arrival of air through the draft hood.

Dans cette position, le vérin 11 constituant le vérin thermique a ses spires jointives en butée contre la paroi 5. Le ressort antagoniste 13 est alors à sa tension minimale.In this position, the cylinder 11 constituting the thermal cylinder has its contiguous turns abutting against the wall 5. The opposing spring 13 is then at its minimum tension.

Lorsqu'on allume le brûleur de four ou le brûleur de grilloir, les dimensions de l'orifice de sortie 4 des fumées sont suffisamment importantes pour permettre une expansion de celles-ci suffisamment rapide pour ne pas perturber le fonctionnement du brûleur et le tirage s'établit. La position du volet 7 assure une forme à la base de la cheminée 6, favorable à l'écoulement des fumées. Le capteur de température 9 transmet au caloduc 10 la chaleur apportée par les produits de combustion et élève la température du vérin thermique à mémoire 11 jusqu'à atteindre la température à laquelle il s'expanse en amenant le volet 7 dans la seconde position d'équilibre.When the oven burner or the broiler burner is lit, the dimensions of the smoke outlet orifice 4 are large enough to allow their expansion to be rapid enough not to disturb the operation of the burner and the draft s 'establishes. The position of the flap 7 ensures a shape at the base of the chimney 6, favorable to the flow of smoke. The temperature sensor 9 transmits the heat provided by the combustion products to the heat pipe 10 and raises the temperature of the memory thermal cylinder 11 until it reaches the temperature at which it expands by bringing the shutter 7 to the second position. balanced.

Dans cette position, le volet 7 obture partiellement l'orifice de sortie 4 des fumées de l'enceinte dans le conduit de cheminée 6, de façon à lui donner la valeur optimale pour le fonctionnement du brûleur tout en réduisant au strict nécessaire les déperditions. Il ferme en outre un orifice annexe éventuel (non représenté) situé entre la tige 10 servant de caloduc et l'axe 8. Simultanément le coupe-tirage se trouve ouvert ce qui diminue les déperditions. En outre l'air frais se mélangeant aux fumées réduit leur température à la sortie dans l'atmosphère. Cet air frais passe autour du vérin thermique et du caloduc. Il permet d'évacuer l'excédent de chaleur apporté par le caloduc par suite de l'élévation de température des fumées dans l'enceinte. Ceci évite au vérin thermique d'être porté à une température à laquelle il risque de perdre ses propriétés.In this position, the flap 7 partially closes the outlet orifice 4 for the smoke from the enclosure in the chimney flue 6, so as to give it the optimum value for the operation of the burner while reducing losses as strictly as necessary. It also closes a possible annex orifice (not shown) located between the rod 10 serving as a heat pipe and the axis 8. Simultaneously the draft stop is open which reduces the losses. In addition, the fresh air mixing with the fumes reduces their temperature on leaving the atmosphere. This fresh air passes around the thermal cylinder and the heat pipe. It allows the excess heat provided by the heat pipe to be evacuated as a result of the rise in temperature of the fumes in the enclosure. This prevents the thermal cylinder from being brought to a temperature at which it risks losing its properties.

Lorsque l'on règle le thermostat pour obtenir une basse température dans l'enceinte, on est en général limité dans les températures obtenues par la nécessité de maintenir un débit calorifique assurant un fonctionnement satisfaisant du brûleur et le maintien armé des éventuels dispositifs de sécurité de flamme.When adjusting the thermostat to obtain a low temperature in the enclosure, one is generally limited in the temperatures obtained by the need to maintain a calorific flow ensuring satisfactory operation of the burner and keeping armed any safety devices flame.

La température du four baissant, le vérin thermique retrouve ses caractéristiques de l'état froid et met à nouveau le volet 7 dans la position allumage. Ceci augmente la section de sortie des fumées et à pour effet de réduire la température à l'intérieur de l'enceinte sans compromettre le fonctionnement du brûleur.As the temperature of the oven drops, the thermal cylinder regains its characteristics from the cold state and again puts the shutter 7 in the ignition position. This increases the smoke outlet section and has the effect of reducing the temperature inside the enclosure without compromising the operation of the burner.

. Cette application peut être étendue à tous types d'enceinte chauffante et à divers types de combustibles.. This application can be extended to all types of heating chambers and to various types of fuel.

Claims (8)

1/ Four domestique à gaz comportant une enceinte de cuisson (1) dont une paroi (3) présente un orifice (4) pour l'échappement des fumées, ledit orifice (4) débouchant dans une cheminée (6) d'évacuation reliée à une arrivée d'air frais, caractérisé par le fait qu'il comprend d'une part un premier moyen (7) permettant de diminuer la section dudit orifice (4) et d'assurer simultanément une circulation d'air frais dans la cheminée (6) et d'autre part un second moyen (9, 10, 11) assurant automatiquement la mise en oeuvre dudit premier moyen (7) lorsque la température atteint une valeur prédéterminée dans l'enceinte (1).1 / domestic gas oven comprising a cooking enclosure (1) of which a wall (3) has an orifice (4) for the exhaust of fumes, said orifice (4) opening into a chimney (6) for evacuation connected to a fresh air inlet, characterized in that it comprises on the one hand a first means (7) making it possible to reduce the cross section of said orifice (4) and to simultaneously ensure a circulation of fresh air in the chimney ( 6) and secondly a second means (9, 10, 11) automatically ensuring the implementation of said first means (7) when the temperature reaches a predetermined value in the enclosure (1). 2/ Four selon la revendication 1, caractérisé par le fait que ledit premier moyen comporte un volet (7) pivotant, disposé dans ladite cheminée (6) et susceptible de prendre deux positions, une première position dans laquelle il empêche l'écoulement de l'air frais dans la cheminée (6) et laisse complètement ouvert l'orifice (4) et une seconde position dans laquelle il obture partiellement l'orifice (4) et autorise la circulation de l'air frais dans la cheminée (6).2 / Oven according to claim 1, characterized in that said first means comprises a pivoting flap (7), disposed in said chimney (6) and capable of taking two positions, a first position in which it prevents the flow of l fresh air in the chimney (6) and leaves the orifice (4) completely open and a second position in which it partially closes the orifice (4) and allows the circulation of fresh air in the chimney (6). 3/ Four selon la revendication 2, caractérisé par le fait que ledit volet (7) pivote autour d'un axe (8) horizontal porté par la paroi (3) présentant l'orifice (4) d'échappement des fumées.3 / Oven according to claim 2, characterized in that said flap (7) pivots about a horizontal axis (8) carried by the wall (3) having the orifice (4) exhaust fumes. 4/ Four selon l'une des revendications 1 à 3, caractérisé par le fait que le deuxième moyen assurant la mise en oeuvre du premier moyen comporte un vérin thermique (11) associé à un capteur de température (9) de manière à assurer le fonctionnement dudit vérin (11) lorsque la température dans l'enceinte (1) atteint une valeur prédéterminée.4 / Oven according to one of claims 1 to 3, characterized in that the second means ensuring the implementation of the first means comprises a thermal cylinder (11) associated with a temperature sensor (9) so as to ensure the operation of said cylinder (11) when the temperature in the enclosure (1) reaches a predetermined value. 5/ Four selon la revendication 4, caractérisé par le fait que le volet (7) est lié à un collier (12) susceptible de glisser le long d'une tige (10) un vérin thermique (11) étant enfilé sur la tige (10), ledit vérin (11), constitué par un fil en un matériau à mémoire thermique enroulé en hélice, étant rétracté lorsque le volet est dans la première position et expansé lorsque le volet est dans la deuxième position, ladite tige (10) étant solidarisée au capteur (9) de manière à véhiculer des calories qui échauffent le vérin thermique (11).5 / Oven according to claim 4, characterized in that the flap (7) is linked to a collar (12) capable of sliding along a rod (10) a thermal cylinder (11) being threaded on the rod ( 10), said jack (11), consisting of a wire made of a thermal memory material wound in a helix, being retracted when the shutter is in the first position and expanded when the shutter is in the second position, said rod (10) being secured to the sensor (9) so as to convey calories which heat the thermal cylinder (11). 6/ Four selon la revendication 5, caractérisé par le fait que le matériau à mémoire thermique constituant ledit vérin thermique (11) est choisi dans le groupe formé par des alliages dont la structure austénitique passe à la strucuture martensitique pour une température déterminée.6 / Oven according to claim 5, characterized in that the thermal memory material constituting said thermal cylinder (11) is chosen from the group formed by alloys whose austenitic structure passes to the martensitic structure for a determined temperature. 7/ Four selon la revendication 6, caractérisé en ce que le vérin thermique est constitué par des alliages type laiton, dont la teneur en cuivre est comprise entre 55 et 80%, celle en aluminium comprise entre 2 et 8%, le reste étant constitué essentiellement par du zinc. 8/ Four selon l'une des revendications 4 à 7, caractérisé par le fait que ledit capteur de température (9) est disposé sur ladite paroi (3), à l'intérieur de l'enceinte de cuisson (1).7 / Oven according to claim 6, characterized in that the thermal cylinder is constituted by brass type alloys, the copper content of which is between 55 and 80%, that of aluminum between 2 and 8%, the rest being constituted mainly by zinc. 8 / Oven according to one of claims 4 to 7, characterized in that said temperature sensor (9) is disposed on said wall (3), inside the cooking chamber (1). 9/ Four selon l'une des revendications 5 à 8, caractérisé par le fait que ladite tige (10) porte également un ressort antagoniste (13) en métal ordinaire, lesdits ressorts antagonistes (13) et en matériau à mémoire thermique (11) étant disposés de part et d'autre du collier (12) lié au volet (7).9 / Oven according to one of claims 5 to 8, characterized in that said rod (10) also carries an opposing spring (13) made of ordinary metal, said opposing springs (13) and made of thermal memory material (11) being arranged on either side of the collar (12) linked to the flap (7).
EP19840103043 1983-03-23 1984-03-20 Domestic gas oven Expired EP0123131B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8304748 1983-03-23
FR8304748A FR2543269B1 (en) 1983-03-23 1983-03-23 DOMESTIC GAS OVEN

Publications (2)

Publication Number Publication Date
EP0123131A1 true EP0123131A1 (en) 1984-10-31
EP0123131B1 EP0123131B1 (en) 1986-11-12

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ID=9287138

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840103043 Expired EP0123131B1 (en) 1983-03-23 1984-03-20 Domestic gas oven

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EP (1) EP0123131B1 (en)
DE (1) DE3461335D1 (en)
FR (1) FR2543269B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012149377A2 (en) * 2011-04-27 2012-11-01 Electrolux Home Products, Inc. Flow control device for an oven
CN108355281B (en) * 2018-03-12 2021-12-10 台州半城暖通科技有限公司 Fire control shower nozzle valve with heat-sensitive spring

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2839044A (en) * 1950-10-14 1958-06-17 Chambers Corp Oven
FR2470929A1 (en) * 1979-12-04 1981-06-12 Etienne Serge Cooking oven with oil burner - has chimney with flap at top controlling hot gas discharge which can be closed for higher cooking temp.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2839044A (en) * 1950-10-14 1958-06-17 Chambers Corp Oven
FR2470929A1 (en) * 1979-12-04 1981-06-12 Etienne Serge Cooking oven with oil burner - has chimney with flap at top controlling hot gas discharge which can be closed for higher cooking temp.

Also Published As

Publication number Publication date
DE3461335D1 (en) 1987-01-02
FR2543269A1 (en) 1984-09-28
EP0123131B1 (en) 1986-11-12
FR2543269B1 (en) 1985-06-21

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