EP1172607A1 - Gas burner with increased power - Google Patents

Gas burner with increased power Download PDF

Info

Publication number
EP1172607A1
EP1172607A1 EP01401572A EP01401572A EP1172607A1 EP 1172607 A1 EP1172607 A1 EP 1172607A1 EP 01401572 A EP01401572 A EP 01401572A EP 01401572 A EP01401572 A EP 01401572A EP 1172607 A1 EP1172607 A1 EP 1172607A1
Authority
EP
European Patent Office
Prior art keywords
combustion
burner
flames
head
injectors
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
EP01401572A
Other languages
German (de)
French (fr)
Other versions
EP1172607B1 (en
Inventor
Ludovic Thiebaux
Jean-Claude Molla
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.)
Engie SA
Original Assignee
Gaz de France 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 Gaz de France SA filed Critical Gaz de France SA
Publication of EP1172607A1 publication Critical patent/EP1172607A1/en
Application granted granted Critical
Publication of EP1172607B1 publication Critical patent/EP1172607B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/12—Arrangement or mounting of control or safety devices
    • F24C3/126—Arrangement or mounting of control or safety devices on ranges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/14—Special features of gas burners
    • F23D2900/14062—Special features of gas burners for cooking ranges having multiple flame rings

Definitions

  • the field of the invention is that of gas mixture burners fuel and combustion air, in particular with air induction and partial premixing of gas and air, such as burners for industrial or private ranges.
  • burners of the type comprising a body equipped with at least one flame support means provided with openings for the passage through them of ignited gases in order to form main flames, and a mixture supply system of combustible gas and combustion air connected to the flame support means.
  • These very typical burners like those with circular blue flames (or crown) with atmospheric air induction and partial premix, have various drawbacks notably linked to their surface yield often insufficient (in particular in professional use) and / or pollution (discharge of polluting gases).
  • the evolution of market demand leads to a share in wanting to increase the maximum power of these burners while retaining their size, i.e.
  • WO-A-98 30838 describes an improvement to this type of burner, the burner further comprising means combustion auxiliaries to send a gas flow substantially in direction of said main flames with the ignited gases of which it mixes to create secondary flames that develop between main flames, or as a result thereof, so as to bring about an increase of power by means of flame support with which the means combustion auxiliaries cooperate.
  • the invention aims to obtain a power density at level of main burner flames, much higher than that provided by a burner, as described in WO-A-98 30838, combining two means of different combustion through which escapes the same mixture gaseous.
  • the auxiliary means of combustion include at least one fuel gas injector substantially pure giving rise to secondary jet-shaped flames turbulent.
  • the turbulent jet thus created in the immediate environment of main flames allows improved combustion due to its speed which results in better mixing of the surrounding air.
  • burning the secondary flames and burning the mixture of combustible gas and combustion air interact, which increases the power density provided by a combustible air mixture burner and oxidizing gas for a given level of pollution.
  • the air circulation increases the heat transfer coefficient to the container heat (pan for example).
  • the auxiliary combustion means will not start only works when the power of the main burner is reached, so that "boost" this burner all at once, for example to increase very quickly power under a pan of water to heat, all without increase the size of the burner.
  • the support means of flames are constituted by a combustion head supplied by a power mixture source adjustable in power, the main flames being then modular and then developing around the periphery of this head, at level of the openings for the passage of ignited gases, and that the means combustion auxiliaries are then all or nothing type adjustment (open closed).
  • the head combustion will preferably be circular and the injectors will be then placed on a concentric circle with the combustion head and inclined at a non-zero angle with the vertical, the radius of the circle and the angle of inclination then being chosen so that the injectors point in the direction of the end of the main flames coming out of the combustion head.
  • the injectors may in particular be four in number regularly distributed in a circle and they will point to the exit ports of the head circular of the burner, more precisely towards the end of the flames main coming out of this head so that the pure gas coming out of injectors is propelled towards the end of said main flames.
  • the combustion head may be annular and have suitable gas mixture passage openings so that the main flames develop towards the center of said head, and the injectors will then preferably be located inside this ring and oriented centrifugally, towards the main flames, at the level from their end.
  • This structure further reduces the size of the burner because the injectors are arranged inside the head.
  • the head of combustion can directly integrate the injectors of the auxiliary means combustion.
  • the invention also relates to a cooking appliance (such as a stove) or heating (water heater) equipped with a burner as described, with its auxiliary combustion means.
  • a cooking appliance such as a stove
  • heating water heater
  • the invention relates to a gas mixture burner 10 comprising a body 12, typically made of metal (for example in cast aluminum) on which a means 14 is mounted flame support in the form of a substantially 15 combustion head horizontal, for example in brass, provided with a cap 16.
  • This head combustion 15 is for example here of circular section with center A, as we can see it more precisely on figure 2. It is also pierced several lateral orifices 17 (see FIG. 3) adapted to allow the passage of a premix of ignited gases (natural gas and air) for the formation of main F (or primary) flames which develop in crown shape around the head.
  • the burner 10 also includes a supply system 20 connected in particular to the combustion head. It is described in more detail later using Figure 4.
  • the burner 10 is also provided with auxiliary (or secondary) combustion means 30 presented under the form of one or more injectors 32 projecting from the body.
  • injectors 32 for example four in number arranged concentrically around the combustion head in a circle with center A and radius R, are supplied with substantially pure combustible gas (i.e. does not substantially comprising only combustible gas, or at least no gas oxidizer) at a preferably constant pressure. They are independent of the combustion head 15 and operate all or nothing, while the combustion head combustion is on the contrary adjustable in power so as to give birth of modular flames F.
  • These injectors 32 cooperate closely with the combustion head 15 so that a localized additional power when desired.
  • the injectors 32 are provided to send a flow of pure gas directed towards the gases in combustion forming the flames emerging from the combustion head, and in particular towards point H, at the end of the main flames (see figure 5).
  • the injectors 32 can be tilted by making a non-zero angle ⁇ (positive or negative) with the vertical, for example if we move the injectors a little further from the center of the head by increasing the radius R of the circle they are on. It is best to always choose a circle diameter and an angle ⁇ of inclination such as the gas jet leaving the injectors 32 point towards the combustion gases forming the flames main so that it mixes with these, and preferably towards the end point of said main flames so that secondary flames F 'can be created correctly following or between the main flames, by interignition with them (main flames then become "pilot" flames of secondary flames).
  • ⁇ positive or negative
  • the injectors 32 are directly mounted on the combustion head 15 and no longer on the body 12.
  • the head 15 is preferably annular and the main flames are directed towards the center A of the head, while the injectors are placed in the middle of this ring and directed preferably, as for the solution preceding, in direction, from the end point of the main flames.
  • the injectors 32 may also be inclined at an angle ⁇ with the vertical, and a minimum distance from the peripheral orifices of the head must still be respected for questions of performance.
  • FIG 4 there is shown a descriptive diagram of the system burner supply.
  • This system 20 includes a first line 21 gas supply (natural gas for example) which supplies the mixing device (atmospheric air + natural gas) of the head combustion 15 and which is controlled by a safety valve 22 linked to a thermocouple 23.
  • a second line 24 derives from the first line 22 of so as to supply the injectors 32 with pure gas.
  • the gas inlet to the injectors 32 is controlled by the user using a solenoid valve 26 and an on-off switch 25.
  • the admission of gas to the injectors is only authorized when the head of combustion is at full flow thanks to a pressure switch 27 connected to the line main 21.
  • the on / off button can therefore only be pressed when the pressure switch has detected that the combustion head is at maximum power.
  • this improved burner which can example be mounted on a traditional gas stove (for housing) or professional (industrial kitchen), is very simple.
  • the user wish to quickly increase the heating power of the burner under a dish or saucepan, it first puts the medium flame support in the maximum power by turning an adjustment knob provided for this effect. Then it activates the solenoid valve 26 and the on-off switch 25 (of type "all or nothing” therefore). This has the effect of injecting pure gas into direction of the main flame crown. It then creates a jet turbulent gas which mixes with the burning gas flames main, causing the creation of secondary flames F 'which come add to main flames.
  • the interignition which is created between the main flames and secondary flames helps stabilize the assembly and ensure high efficiency and emission combustion reduced pollutant (CO, Nox).
  • CO, Nox emission combustion reduced pollutant
  • the heat density present under the container is therefore markedly increased compared to the burners of the prior art.
  • the pressure switch detecting a pressure drop below the maximum pressure, it automatically cuts off the gas inlet to the injectors, and the burner works again in normal mode, the effect "occasional increase of power "disappearing.
  • the user can, if he wishes, control the injectors themselves using the start / stop button.
  • This burner is therefore extremely simple to use as well as design. It is adaptable to many types of cooking appliances or heating (not shown), whether stoves, space heaters gas, water heaters or other appliances with premix burners partial or total which may require an increase in power easy to get.
  • the invention is in no way limited to the modes of achievements presented as an example. So the head, and therefore the burner at complete, may have a shape other than circular or annular.
  • the number and position of the injectors can also vary, in particular depending on the shape of the head.
  • Other gases can also be used for the place of natural gas such as petroleum gases or manufactured gases, for example.

Landscapes

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

Abstract

The burner (10), comprising a body (12) with a support (14) having main flame outlets (17) and a feed system for a mixture of fuel gas and oxidant air, incorporates an auxiliary combustion system with one or more injectors (32) for more or less pure gas, producing secondary turbulent jet flames. The support (14) has a head (15) of circular section, and the auxiliary injectors are positioned concentrically round it.

Description

Le domaine de l'invention est celui des brûleurs à mélange de gaz combustible et d'air comburant, en particulier à induction d'air et prémélange partiel de gaz et d'air, tels notamment que les brûleurs pour cuisinières industrielles ou particulières.The field of the invention is that of gas mixture burners fuel and combustion air, in particular with air induction and partial premixing of gas and air, such as burners for industrial or private ranges.

Dans ce domaine, on connaít déjà des brûleurs du type comprenant un corps équipé d'au moins un moyen support de flammes muni d'orifices pour le passage à travers eux de gaz enflammés afin de former des flammes principales, et un système d'alimentation en mélange de gaz combustible et d'air comburant relié au moyen support de flammes. Ces brûleurs, tout à fait typiques comme ceux à flammes bleues circulaires (ou en couronne) à induction d'air atmosphérique et prémélange partiel, présentent divers inconvénients notamment liés à leur rendement surfacique souvent insuffisant (en particulier en utilisation professionnelle) et/ou de pollution (rejet de gaz polluants). L'évolution de la demande du marché conduit d'une part à vouloir augmenter la puissance maximale de ces brûleurs tout en conservant leur encombrement, c'est-à-dire le rapport puissance/dimensions, et d'autre part à augmenter la plage d'utilisation (appelée "souplesse") qui est le rapport entre la puissance maximale et la puissance minimale disponible sur le brûleur. Compte tenu des contraintes normatives en matière d'émission polluantes (CO notamment), des contraintes de sécurité de fonctionnement et de l'état actuel de la technique, il devient difficile d'augmenter la densité de puissance pour une dimension (diamètre par exemple) de brûleur donné.In this area, we already know burners of the type comprising a body equipped with at least one flame support means provided with openings for the passage through them of ignited gases in order to form main flames, and a mixture supply system of combustible gas and combustion air connected to the flame support means. These very typical burners like those with circular blue flames (or crown) with atmospheric air induction and partial premix, have various drawbacks notably linked to their surface yield often insufficient (in particular in professional use) and / or pollution (discharge of polluting gases). The evolution of market demand leads to a share in wanting to increase the maximum power of these burners while retaining their size, i.e. the ratio power / dimensions, and on the other hand to increase the range of use (called "flexibility") which is the ratio between the maximum power and the minimum power available on the burner. Given the constraints standards in terms of polluting emissions (CO in particular), operational safety constraints and the state of the art there becomes difficult to increase the power density for a dimension (diameter for example) of given burner.

Il est décrit dans WO-A-98 30838 un perfectionnement à ce type de brûleur consistant en ce que le brûleur comprend en outre des moyens auxiliaires de combustion pour envoyer un flux gazeux sensiblement en direction desdites flammes principales avec les gaz enflammés desquelles il se mélange pour créer des flammes secondaires qui se développent entre les flammes principales, ou à la suite de celles-ci, de façon à apporter un surcroít de puissance au moyen support de flammes avec lequel les moyens auxiliaires de combustion coopèrent.WO-A-98 30838 describes an improvement to this type of burner, the burner further comprising means combustion auxiliaries to send a gas flow substantially in direction of said main flames with the ignited gases of which it mixes to create secondary flames that develop between main flames, or as a result thereof, so as to bring about an increase of power by means of flame support with which the means combustion auxiliaries cooperate.

Cette association de deux moyens de production de chaleur est simple à mettre en oeuvre et permet un gain de puissance au niveau du mélange des flammes principales et secondaires.This association of two means of heat production is simple to implement and allows a gain of power at the level of mixture of main and secondary flames.

Toutefois, l'invention vise à obtenir une densité de puissance au niveau des flammes principales du brûleur, bien supérieure à celle procurée par un brûleur, tel que décrit dans WO-A-98 30838, associant deux moyens de combustion différents à travers lequel s'échappe un même mélange gazeux.However, the invention aims to obtain a power density at level of main burner flames, much higher than that provided by a burner, as described in WO-A-98 30838, combining two means of different combustion through which escapes the same mixture gaseous.

Elle vise en outre à proposer une solution simple, fiable, pratique et peu onéreuse. Pour ce faire, elle propose que les moyens auxiliaires de combustion comprennent au moins un injecteur de gaz combustible sensiblement pur donnant naissance aux flammes secondaires en forme de jet turbulent.It also aims to offer a simple, reliable, practical solution and inexpensive. To do this, it proposes that the auxiliary means of combustion include at least one fuel gas injector substantially pure giving rise to secondary jet-shaped flames turbulent.

Le jet turbulent ainsi créé dans l'environnement immédiat des flammes principales permet une combustion améliorée en raison de sa vitesse qui engendre un meilleur brassage de l'air environnant. Autrement dit, la combustion des flammes secondaires et la combustion du mélange de gaz combustible et d'air comburant interagissent, ce qui permet d'augmenter la densité de puissance procurée par un brûleur à mélange d'air combustible et de gaz comburant pour un niveau de pollution donné. En outre, le brassage d'air augmente le coefficient de transfert thermique au récipient à chauffer (casserole par exemple).The turbulent jet thus created in the immediate environment of main flames allows improved combustion due to its speed which results in better mixing of the surrounding air. Other said, burning the secondary flames and burning the mixture of combustible gas and combustion air interact, which increases the power density provided by a combustible air mixture burner and oxidizing gas for a given level of pollution. In addition, the air circulation increases the heat transfer coefficient to the container heat (pan for example).

Afin d'optimiser l'allumage des moyens de combustion auxiliaires, il est prévu que le système d'alimentation du brûleur comprenne :

  • des moyens pour déclencher l'ouverture de l'alimentation en gaz combustible des moyens auxiliaires de combustion uniquement lorsque les moyens support de flammes sont à puissance maximum, et
  • des moyens pour déclencher la fermeture de l'alimentation en gaz combustible des moyens auxiliaires de combustion lorsque la puissance du moyen support de flammes passe sensiblement sous ladite puissance maximum.
In order to optimize the ignition of the auxiliary combustion means, it is provided that the burner supply system includes:
  • means for triggering the opening of the supply of combustible gas to the auxiliary combustion means only when the flame support means are at maximum power, and
  • means for triggering the closure of the supply of combustible gas to the auxiliary combustion means when the power of the flame support means passes substantially below said maximum power.

Ainsi, les moyens de combustion auxiliaires ne se mettront en marche que lorsque la puissance du brûleur principal sera atteinte, de façon à "booster" ce brûleur d'un seul coup, par exemple pour augmenter très rapidement la puissance sous une casserole d'eau à chauffer, le tout sans augmenter la taille du brûleur.Thus, the auxiliary combustion means will not start only works when the power of the main burner is reached, so that "boost" this burner all at once, for example to increase very quickly power under a pan of water to heat, all without increase the size of the burner.

Pour des raisons liées à la souplesse d'utilisation et à la facilité de conception et de fabrication du brûleur, il est prévu que les moyens support de flammes soient constitués par une tête de combustion alimentée par une source à mélange de gaz réglable en puissance, les flammes principales étant alors modulables et se développant alors sur le pourtour de cette tête, au niveau des orifices de passage des gaz enflammés, et que les moyens auxiliaires de combustion soient alors à réglage de type tout ou rien (ouvert fermé).For reasons related to the flexibility of use and the ease of design and manufacture of the burner, it is intended that the support means of flames are constituted by a combustion head supplied by a power mixture source adjustable in power, the main flames being then modular and then developing around the periphery of this head, at level of the openings for the passage of ignited gases, and that the means combustion auxiliaries are then all or nothing type adjustment (open closed).

En particulier, pour une meilleure répartition des flammes, la tête de combustion sera de préférence à section circulaire et les injecteurs seront alors placés sur un cercle concentrique avec la tête de combustion et inclinés d'un angle non nul avec la verticale, le rayon du cercle et l'angle d'inclinaison étant alors choisis de telle sorte que les injecteurs pointent en direction de l'extrémité des flammes principales sortant de la tête de combustion. Les injecteurs pourront en particulier être au nombre de quatre régulièrement répartis sur un cercle et ils pointeront vers les orifices de sortie de la tête circulaire du brûleur, plus précisément vers l'extrémité des flammes principales sortant de cette tête de telle sorte que le gaz pur sortant des injecteurs soit propulsé vers l'extrémité desdites flammes principales. In particular, for a better distribution of the flames, the head combustion will preferably be circular and the injectors will be then placed on a concentric circle with the combustion head and inclined at a non-zero angle with the vertical, the radius of the circle and the angle of inclination then being chosen so that the injectors point in the direction of the end of the main flames coming out of the combustion head. The injectors may in particular be four in number regularly distributed in a circle and they will point to the exit ports of the head circular of the burner, more precisely towards the end of the flames main coming out of this head so that the pure gas coming out of injectors is propelled towards the end of said main flames.

Selon une variante de réalisation, la tête de combustion pourra être annulaire et présenter des orifices de passage du mélange de gaz adaptés pour que les flammes principales se développent vers le centre de ladite tête, et les injecteurs seront alors de préférence situés à l'intérieur de cet anneau et orientés de façon centrifuge, en direction des flammes principales, au niveau de leur extrémité. Cette structure réduit encore la taille du brûleur car les injecteurs sont disposés à l'intérieur de la tête.According to an alternative embodiment, the combustion head may be annular and have suitable gas mixture passage openings so that the main flames develop towards the center of said head, and the injectors will then preferably be located inside this ring and oriented centrifugally, towards the main flames, at the level from their end. This structure further reduces the size of the burner because the injectors are arranged inside the head.

En particulier, dans un souci de compacité du dispositif, la tête de combustion pourra intégrer directement les injecteurs des moyens auxiliaires de combustion.In particular, for the sake of compactness of the device, the head of combustion can directly integrate the injectors of the auxiliary means combustion.

L'invention concerne aussi un appareil de cuisson (tel qu'une cuisinière) ou de chauffage (chauffe-eau) équipé d'un brûleur tel que décrit, avec ses moyens auxiliaires de combustion.The invention also relates to a cooking appliance (such as a stove) or heating (water heater) equipped with a burner as described, with its auxiliary combustion means.

L'invention et sa mise en oeuvre apparaítront encore plus clairement à l'aide de la description qui va suivre, faite en référence aux dessins dans lesquels :

  • la figure 1 est une vue en perspective d'un brûleur conforme à l'invention,
  • la figure 2 est une vue du dessus du brûleur de la figure 1,
  • la figure 3 est une vue de côté de la figure 1,
  • la figure 4 est un schéma d'alimentation en mélange de gaz pour le brûleur des figures précédentes, et
  • la figure 5 est une vue en coupe d'une variante de réalisation de la figure 1.
The invention and its implementation will appear even more clearly with the aid of the description which follows, made with reference to the drawings in which:
  • FIG. 1 is a perspective view of a burner according to the invention,
  • FIG. 2 is a top view of the burner of FIG. 1,
  • FIG. 3 is a side view of FIG. 1,
  • FIG. 4 is a diagram of the supply of gas mixture for the burner of the preceding figures, and
  • FIG. 5 is a sectional view of an alternative embodiment of FIG. 1.

Comme on peut le voir sur la figure 1, l'invention concerne un brûleur 10 à mélange de gaz comprenant un corps 12, typiquement en métal (par exemple en fonte d'aluminium) sur lequel est monté un moyen 14 support de flammes sous la forme d'une tête 15 de combustion sensiblement horizontale, par exemple en laiton, munie d'un chapeau 16. Cette tête de combustion 15 est par exemple ici de section circulaire de centre A, comme on peut le voir de façon plus précise sur la figure 2. Elle est également percée de plusieurs orifices latéraux 17 (voir figure 3) adaptés pour permettre le passage d'un prémélange de gaz enflammés (gaz naturel et air) pour la formation de flammes principales F (ou primaires) qui se développent en forme de couronne autour de la tête. Le brûleur 10 comprend également un système d'alimentation 20 relié en particulier à la tête de combustion. Il est décrit plus en détail un peu plus loin à l'aide de la figure 4.As can be seen in FIG. 1, the invention relates to a gas mixture burner 10 comprising a body 12, typically made of metal (for example in cast aluminum) on which a means 14 is mounted flame support in the form of a substantially 15 combustion head horizontal, for example in brass, provided with a cap 16. This head combustion 15 is for example here of circular section with center A, as we can see it more precisely on figure 2. It is also pierced several lateral orifices 17 (see FIG. 3) adapted to allow the passage of a premix of ignited gases (natural gas and air) for the formation of main F (or primary) flames which develop in crown shape around the head. The burner 10 also includes a supply system 20 connected in particular to the combustion head. It is described in more detail later using Figure 4.

Comme on peut le remarquer, le brûleur 10 est aussi muni de moyens 30 auxiliaires (ou secondaires) de combustion se présentant sous la forme d'un ou plusieurs injecteurs 32 faisant saillie du corps. Ces injecteurs 32, par exemple au nombre de quatre disposés concentriquement autour de la tête de combustion selon un cercle de centre A et de rayon R, sont alimentés en gaz combustible sensiblement pur (autrement dit ne comprenant sensiblement que du gaz combustible, ou du moins pas de gaz comburant) à une pression de préférence constante. Ils sont indépendants de la tête de combustion 15 et fonctionnent en tout ou rien, alors que la tête de combustion est au contraire réglable en puissance de façon à donner naissance à des flammes modulables F. Ces injecteurs 32 coopèrent étroitement avec la tête de combustion 15 de façon à pouvoir apporter un surcroít localisé de puissance lorsque cela est désiré. Pour cela, les injecteurs 32 sont prévus pour envoyer un flux de gaz pur dirigé en direction des gaz en combustion formant les flammes sortant de la tête de combustion, et en particulier en direction du point H, à l'extrémité des flammes principales (voir figure 5).As can be seen, the burner 10 is also provided with auxiliary (or secondary) combustion means 30 presented under the form of one or more injectors 32 projecting from the body. These injectors 32, for example four in number arranged concentrically around the combustion head in a circle with center A and radius R, are supplied with substantially pure combustible gas (i.e. does not substantially comprising only combustible gas, or at least no gas oxidizer) at a preferably constant pressure. They are independent of the combustion head 15 and operate all or nothing, while the combustion head combustion is on the contrary adjustable in power so as to give birth of modular flames F. These injectors 32 cooperate closely with the combustion head 15 so that a localized additional power when desired. For this, the injectors 32 are provided to send a flow of pure gas directed towards the gases in combustion forming the flames emerging from the combustion head, and in particular towards point H, at the end of the main flames (see figure 5).

On peut noter que les injecteurs 32 peuvent être inclinés en faisant un angle α non nul (positif ou négatif) avec la verticale, par exemple si on éloigne un peu les injecteurs du centre de la tête en augmentant le rayon R du cercle sur lequel ils se trouvent. Il est préférable de toujours choisir un diamètre de cercle et un angle α d'inclinaison tels que le jet de gaz sortant des injecteurs 32 pointe en direction des gaz en combustion formant les flammes principales pour qu'il se mélange à ceux-ci, et de préférence en direction du point d'extrémité desdites flammes principales de telle sorte que des flammes secondaires F' puissent se créer correctement à la suite ou entre les flammes principales, par interallumage avec celles-ci (les flammes principales deviennent alors des flammes "pilotes" des flammes secondaires).It can be noted that the injectors 32 can be tilted by making a non-zero angle α (positive or negative) with the vertical, for example if we move the injectors a little further from the center of the head by increasing the radius R of the circle they are on. It is best to always choose a circle diameter and an angle α of inclination such as the gas jet leaving the injectors 32 point towards the combustion gases forming the flames main so that it mixes with these, and preferably towards the end point of said main flames so that secondary flames F 'can be created correctly following or between the main flames, by interignition with them (main flames then become "pilot" flames of secondary flames).

Sur la variante de réalisation de la figure 5, les injecteurs 32 sont directement montés sur la tête de combustion 15 et non plus sur le corps 12. Dans ce cas, la tête 15 est de préférence annulaire et les flammes principales sont dirigées vers le centre A de la tête, tandis que les injecteurs sont placés au milieu de cet anneau et dirigé de préférence, comme pour la solution précédente, en direction, du point d'extrémité des flammes principales. Les injecteurs 32 pourront également être inclinés selon un angle α avec la verticale, et une distance minimale par rapport aux orifices périphériques de la tête doit quand même être respectée pour des questions de rendement.In the alternative embodiment of FIG. 5, the injectors 32 are directly mounted on the combustion head 15 and no longer on the body 12. In this case, the head 15 is preferably annular and the main flames are directed towards the center A of the head, while the injectors are placed in the middle of this ring and directed preferably, as for the solution preceding, in direction, from the end point of the main flames. The injectors 32 may also be inclined at an angle α with the vertical, and a minimum distance from the peripheral orifices of the head must still be respected for questions of performance.

Sur la figure 4, on voit représenté un schéma descriptif du système d'alimentation du brûleur. Ce système 20 comprend une première ligne 21 d'alimentation en gaz (gaz naturel par exemple) qui vient alimenter le dispositif de mélange (air atmosphérique + gaz naturel) de la tête de combustion 15 et qui est commandée par un robinet à sécurité 22 lié à un thermocouple 23. Une seconde ligne 24 dérive de la première ligne 22 de façon à alimenter les injecteurs 32 en gaz pur. L'admission de gaz vers les injecteurs 32 est commandée par l'utilisateur à l'aide d'une électrovanne 26 et un interrupteur marche arrêt 25. Pour assurer une sécurité maximum, l'admission de gaz aux injecteurs n'est autorisée que lorsque la tête de combustion est à plein débit grâce à un pressostat 27 connecté sur la ligne principale 21. Le bouton marche arrêt ne peut donc être actionné que lorsque le pressostat a détecté que la tête de combustion était à puissance maximum. In Figure 4, there is shown a descriptive diagram of the system burner supply. This system 20 includes a first line 21 gas supply (natural gas for example) which supplies the mixing device (atmospheric air + natural gas) of the head combustion 15 and which is controlled by a safety valve 22 linked to a thermocouple 23. A second line 24 derives from the first line 22 of so as to supply the injectors 32 with pure gas. The gas inlet to the injectors 32 is controlled by the user using a solenoid valve 26 and an on-off switch 25. To ensure maximum safety, the admission of gas to the injectors is only authorized when the head of combustion is at full flow thanks to a pressure switch 27 connected to the line main 21. The on / off button can therefore only be pressed when the pressure switch has detected that the combustion head is at maximum power.

Le fonctionnement de ce brûleur perfectionné, qui peut par exemple être monté sur une cuisinière à gaz traditionnelle (pour habitat) ou professionnelle (cuisine industrielle), est très simple. Lorsque l'utilisateur souhaite augmenter rapidement la puissance de chauffe du brûleur sous un plat ou une casserole, il met d'abord le moyen support de flamme au maximum de sa puissance en tournant un bouton de réglage prévu à cet effet. Ensuite, il actionne l'électrovanne 26 et l'interrupteur marche arrêt 25 (de type "tout ou rien" donc). Cela a pour effet d'injecter du gaz pur en direction de la couronne de flammes principales. Il se crée alors un jet turbulent de gaz qui se mélange aux gaz en combustion des flammes principales, provoquant la création de flammes secondaires F' qui viennent s'ajouter aux flammes principales. L'interallumage qui se crée entre les flammes principales et les flammes secondaires permet de stabiliser l'ensemble et d'assurer une combustion à haut rendement et à émission réduite de polluant (CO, Nox). A l'endroit des flammes principales, il y a donc un surcroít important de puissance qui permet, sans augmenter les dimensions de la tête de combustion, de chauffer un récipient très rapidement. La densité de chaleur présente sous le récipient est donc nettement augmentée par rapport aux brûleurs de l'art antérieur.The operation of this improved burner, which can example be mounted on a traditional gas stove (for housing) or professional (industrial kitchen), is very simple. When the user wish to quickly increase the heating power of the burner under a dish or saucepan, it first puts the medium flame support in the maximum power by turning an adjustment knob provided for this effect. Then it activates the solenoid valve 26 and the on-off switch 25 (of type "all or nothing" therefore). This has the effect of injecting pure gas into direction of the main flame crown. It then creates a jet turbulent gas which mixes with the burning gas flames main, causing the creation of secondary flames F 'which come add to main flames. The interignition which is created between the main flames and secondary flames helps stabilize the assembly and ensure high efficiency and emission combustion reduced pollutant (CO, Nox). At the place of the main flames, there is therefore a significant increase in power which allows, without increasing the dimensions of the combustion head, to heat a very quickly. The heat density present under the container is therefore markedly increased compared to the burners of the prior art.

Une fois que le récipient et son contenu sont assez chauds, il suffit de réduire légèrement la puissance de la tête de combustion. Le pressostat détectant une baisse de pression en dessous de la pression maximum, il coupe automatiquement l'admission de gaz aux injecteurs, et le brûleur fonctionne de nouveau en mode normal, l'effet "surcroít ponctuel de puissance " disparaissant. Bien entendu, l'utilisateur peut, s'il le souhaite, commander lui-même l'arrêt des injecteurs à l'aide du bouton marche arrêt.Once the container and its contents are warm enough, just slightly reduce the power of the combustion head. The pressure switch detecting a pressure drop below the maximum pressure, it automatically cuts off the gas inlet to the injectors, and the burner works again in normal mode, the effect "occasional increase of power "disappearing. Of course, the user can, if he wishes, control the injectors themselves using the start / stop button.

A titre d'exemple, pour une tête de combustion ayant une puissance maximale de 5,2 kW et une puissance minimum de 1,5 kW, il a été possible d'obtenir, à l'aide des injecteurs présentés ci avant, une puissance maximum de 7,5 kW avec une souplesse passant de 3,4 à 5, un temps de montée en température réduit de 30% et un rendement normatif passant de 55% à plus de 60%. Cela est en particulier dû au fait que l'écoulement du gaz combustible pur sortant des injecteurs est turbulent, ce qui a pour effet d'augmenter le coefficient de transfert thermique en direction du récipient à chauffer.For example, for a combustion head having a maximum power of 5.2 kW and a minimum power of 1.5 kW, it has been possible, using the injectors presented above, a power maximum of 7.5 kW with flexibility increasing from 3.4 to 5, a time of temperature rise reduced by 30% and a standard output rising from 55% to more than 60%. This is particularly due to the fact that the gas flow pure fuel coming out of the injectors is turbulent, which has the effect increase the heat transfer coefficient towards the container to heat.

Ce brûleur est donc extrêmement simple à utiliser de même qu'à concevoir. Il est adaptable à de nombreux type d'appareils de cuisson ou de chauffage (non représentés), que ce soit des cuisinières, des chauffages au gaz, des chauffe-eau ou d'autres appareils équipés de brûleurs à prémélange partiel ou total qui peuvent nécessiter un surcroít de puissance facile à obtenir.This burner is therefore extremely simple to use as well as design. It is adaptable to many types of cooking appliances or heating (not shown), whether stoves, space heaters gas, water heaters or other appliances with premix burners partial or total which may require an increase in power easy to get.

Par ailleurs, le surcoût de fabrication d'un tel brûleur est très faible, il peut se nettoyer ou se démonter aussi facilement qu'un brûleur normal, il fonctionne de façon sûre et fiable, il est peu polluant. Enfin il possède une souplesse d'utilisation accrue.Furthermore, the additional cost of manufacturing such a burner is very weak, it can be cleaned or dismantled as easily as a burner normal, it works in a safe and reliable way, it is little polluting. Finally he has increased flexibility of use.

Bien entendu, l'invention n'est nullement limitée aux modes de réalisations présentés à titre d'exemple. Ainsi, la tête, et donc le brûleur au complet, peuvent avoir une forme autre que circulaire ou annulaire. Le nombre et la position des injecteurs peut aussi varier, en particulier en fonction de la forme de la tête. D'autres gaz peuvent également être utilisés à la place du gaz naturel tels que les gaz de pétroles ou les gaz manufacturés, par exemple.Of course, the invention is in no way limited to the modes of achievements presented as an example. So the head, and therefore the burner at complete, may have a shape other than circular or annular. The number and position of the injectors can also vary, in particular depending on the shape of the head. Other gases can also be used for the place of natural gas such as petroleum gases or manufactured gases, for example.

Claims (7)

Brûleur (10) comprenant : un corps (12) équipé d'au moins un moyen (14) support de flammes muni d'orifices (17) pour le passage à travers eux d'un mélange de gaz enflammés afin de former des flammes principales (F), et un système d'alimentation (20) en mélange de gaz combustible et d'air comburant relié au moyen (14) support de flammes, des moyens auxiliaires (30) de combustion pour envoyer un flux gazeux (G) sensiblement en direction desdites flammes principales avec les gaz enflammés desquelles il se mélange pour créer des flammes secondaires (F') qui se développent entre les flammes principales (F), ou à la suite de celles-ci, de façon à apporter un surcroít de puissance au moyen (14) support de flammes avec lequel les moyens auxiliaires (30) de combustion coopèrent, caractérisé en ce que les moyens auxiliaires (30) de combustion comprennent au moins un injecteur (32) de gaz combustible sensiblement pur donnant naissance aux flammes secondaires (F') en forme de jet turbulent. Burner (10) comprising: a body (12) equipped with at least one flame support means (14) provided with orifices (17) for the passage through them of a mixture of ignited gases in order to form main flames (F), and a supply system (20) for a mixture of combustible gas and combustion air connected to the flame support means (14), auxiliary combustion means (30) for sending a gas flow (G) substantially in the direction of said main flames with the ignited gases from which it mixes to create secondary flames (F ') which develop between the main flames (F), or as a result thereof, so as to provide an additional power by means (14) flame support with which the auxiliary combustion means (30) cooperate, characterized in that the auxiliary combustion means (30) comprise at least one injector (32) of substantially pure combustible gas giving rise to the secondary flames (F ') in the form of a turbulent jet. Brûleur (10) selon la revendication 1, caractérisé en ce que le système d'alimentation (20) comprend : des moyens (25, 26, 27) pour déclencher l'ouverture de l'alimentation en gaz combustible des moyens (30) auxiliaires de combustion uniquement lorsque les moyens (14) support de flammes sont à puissance maximum, et des moyens (25, 26, 27) pour déclencher la fermeture de l'alimentation en gaz combustible des moyens (30) auxiliaires de combustion lorsque la puissance du moyen (14) support de flammes passe sensiblement sous ladite puissance maximum. Burner (10) according to claim 1, characterized in that the supply system (20) comprises: means (25, 26, 27) for triggering the opening of the fuel gas supply to the combustion auxiliary means (30) only when the flame support means (14) are at maximum power, and means (25, 26, 27) for triggering the closure of the supply of combustible gas to the auxiliary combustion means (30) when the power of the flame support means (14) drops substantially below said maximum power. Brûleur (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que : les moyens (14) support de flammes sont constitués par une tête de combustion (15) alimentée par une source à mélange de gaz combustible et d'air comburant réglable en puissance, les flammes principales (F) étant alors modulables et se développant alors sur le pourtour de cette tête, au niveau des orifices (17) de passage du mélange de gaz enflammés, et les moyens auxiliaires (30) de combustion sont à réglage de type tout ou rien. Burner (10) according to any one of the preceding claims, characterized in that : the flame support means (14) consist of a combustion head (15) supplied by a source of mixture of combustible gas and oxidizing air adjustable in power, the main flames (F) then being modular and then developing on the periphery of this head, at the orifices (17) for passage of the mixture of ignited gases, and the auxiliary combustion means (30) are of all or nothing type. Brûleur (10) selon la revendication 3, caractérisé en ce que : la tête de combustion (15) est à section circulaire, les injecteurs (32) sont disposés de façon concentrique avec la tête de combustion selon un cercle ayant un rayon (r) et ils sont inclinés en faisant un certain angle (α) avec la verticale, et le rayon (r) du cercle et l'angle (α) d'inclinaison sont choisis de telle sorte que les injecteurs (32) pointent en direction du point d'extrémité (H) des flammes principales (F). Burner (10) according to claim 3, characterized in that : the combustion head (15) is of circular section, the injectors (32) are arranged concentrically with the combustion head in a circle having a radius (r) and they are inclined at an angle (α) with the vertical, and the radius (r) of the circle and the angle (α) of inclination are chosen so that the injectors (32) point towards the end point (H) of the main flames (F). Brûleur (10) selon la revendication 4, caractérisé en ce que la tête de combustion (15) est de type annulaire et présente des orifices (17) de passage du mélange de gaz adaptés pour que les flammes principales (F) se développent vers le centre (A) de ladite tête (15), et les injecteurs (32) sont situés à l'intérieur de l'anneau et orientés de façon centrifuge, en direction du point d'extrémité (H) des flammes principales (F).Burner (10) according to claim 4, characterized in that the combustion head (15) is of the annular type and has orifices (17) for the passage of the gas mixture suitable for the main flames (F) to develop towards the center (A) of said head (15), and the injectors (32) are located inside the ring and oriented centrifugally, towards the end point (H) of the main flames (F). Brûleur (10) selon l'une quelconque des revendications 3 à 5, caractérisé en ce que la tête de combustion (15) intègre directement les injecteurs (32) des moyens auxiliaires (30) de combustion.Burner (10) according to any one of claims 3 to 5, characterized in that the combustion head (15) directly integrates the injectors (32) of the auxiliary combustion means (30). Appareil de cuisson ou de chauffage équipé d'un brûleur (10) selon l'une quelconque des revendications précédentes.Cooking or heating appliance equipped with a burner (10) according to any one of the preceding claims.
EP20010401572 2000-07-10 2001-06-15 Gas burner with increased power Expired - Lifetime EP1172607B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0008976 2000-07-10
FR0008976A FR2811410B1 (en) 2000-07-10 2000-07-10 INCREASED GAS AND AIR MIXTURE BURNER

Publications (2)

Publication Number Publication Date
EP1172607A1 true EP1172607A1 (en) 2002-01-16
EP1172607B1 EP1172607B1 (en) 2005-12-14

Family

ID=8852302

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20010401572 Expired - Lifetime EP1172607B1 (en) 2000-07-10 2001-06-15 Gas burner with increased power

Country Status (4)

Country Link
EP (1) EP1172607B1 (en)
DE (1) DE60115773T2 (en)
ES (1) ES2249397T3 (en)
FR (1) FR2811410B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007020189A1 (en) * 2005-08-16 2007-02-22 BSH Bosch und Siemens Hausgeräte GmbH Device for increasing power for a limited time

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008019117A1 (en) 2008-04-16 2009-10-22 Man Turbo Ag Method for operating a premix burner and a premix burner for carrying out the method
DE102010023090A1 (en) * 2010-05-31 2011-12-01 E.G.O. Elektro-Gerätebau GmbH Method of controlling a gas burner and gas hob with multiple gas burners

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE524547C (en) * 1929-11-05 1931-05-08 Vosswerke Akt Ges Double economy burner
GB628196A (en) * 1947-06-26 1949-08-24 Brockhouse J & Co Ltd Improvements in or relating to gas burners
EP0485645A1 (en) * 1990-11-12 1992-05-20 Miralfin S.R.L. Burner with high operating flexibility particularly for gas cooking devices
DE4434742A1 (en) * 1994-09-28 1996-04-04 Imp Werke Gmbh & Co Process for controlling gas supply in dual circuit gas burner
WO1998030838A1 (en) * 1997-01-09 1998-07-16 Robertshaw Controls Company Variable input gas top burner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE524547C (en) * 1929-11-05 1931-05-08 Vosswerke Akt Ges Double economy burner
GB628196A (en) * 1947-06-26 1949-08-24 Brockhouse J & Co Ltd Improvements in or relating to gas burners
EP0485645A1 (en) * 1990-11-12 1992-05-20 Miralfin S.R.L. Burner with high operating flexibility particularly for gas cooking devices
DE4434742A1 (en) * 1994-09-28 1996-04-04 Imp Werke Gmbh & Co Process for controlling gas supply in dual circuit gas burner
WO1998030838A1 (en) * 1997-01-09 1998-07-16 Robertshaw Controls Company Variable input gas top burner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007020189A1 (en) * 2005-08-16 2007-02-22 BSH Bosch und Siemens Hausgeräte GmbH Device for increasing power for a limited time
CN101243288B (en) * 2005-08-16 2011-04-13 Bsh博施及西门子家用器具有限公司 Device for increasing power for a limited time
US8001957B2 (en) 2005-08-16 2011-08-23 Bsh Bosch Und Siemens Hausgeraete Gmbh Device for increasing power for a limited time

Also Published As

Publication number Publication date
ES2249397T3 (en) 2006-04-01
DE60115773D1 (en) 2006-01-19
EP1172607B1 (en) 2005-12-14
FR2811410B1 (en) 2002-10-04
FR2811410A1 (en) 2002-01-11
DE60115773T2 (en) 2006-07-06

Similar Documents

Publication Publication Date Title
EP1195556B1 (en) Gas burner and cooking appliance using such burner
FR2595134A1 (en) Gas burner with forced air blowing for a wood-fired stove
FR2831242A1 (en) Atmospheric-type gas burner for cooking appliance, has primary air conveying portion having apertures and communication passage formed with cross-sections that allow primary air to flow from exterior of burner head towards gas injector
EP0313479B1 (en) Heating device with a catalytic burner
BE719847A (en)
FR2499678A1 (en) BURNER, BOILER, ASSEMBLY COMPRISING SAME, AND METHOD FOR BURNING LIQUID FUEL
EP0242249B1 (en) Burner with low polluting-gas emission
WO2004046615A1 (en) High-performance heating apparatus
CA1123285A (en) Combustion process for liquid fuel and burner for its use
EP1172607B1 (en) Gas burner with increased power
FR2561754A1 (en) COMBUSTION CHAMBER FOR HEATING APPARATUS
EP0178198B1 (en) Burner with a priorily mixture and an integrated pilot-flame
EP0775868B1 (en) Gas burner for a furnace for reheating steel industry products
EP0893651B1 (en) Burner for liquid and gaseous fuel with low nitric oxyde emission
EP0354099B1 (en) Gas-fired hot air heater
FR2461893A1 (en) Wood burning stove for hot water - houses water jacket with bottom opening for grid, and has half grid length baffle plate
EP0549416A1 (en) Grid burner and heating installation comprising same
FR2823557A1 (en) Gas cooker hob has burner beneath heat resistant panel with holes for gas flames
FR2654194A1 (en) Heating appliance, particularly intended to be built into an inside chimney
BE392883A (en)
FR2654013A1 (en) Device for chemical reaction using gas phase homogeneous catalysis, especially a catalytic burner
FR2527744A1 (en) POT TYPE OIL BURNER
FR2833071A1 (en) Multi-use gas burner, especially for cooking surface, has head with gas mixture passages angled to create turbulence in central zone
WO1993019328A1 (en) Gas burner having a plurality of combustion heads
FR2471556A1 (en) Oil burner fuel economiser - consists of four interlocking slotted plates with bottom and central openings, assembled to form square section channel

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DE ES FR GB IT

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20020207

AKX Designation fees paid

Free format text: BE DE ES FR GB IT

17Q First examination report despatched

Effective date: 20030625

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE ES FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 60115773

Country of ref document: DE

Date of ref document: 20060119

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20060116

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2249397

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20060915

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

Ref country code: FR

Ref legal event code: CA

Ref country code: FR

Ref legal event code: CJ

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 60115773

Country of ref document: DE

Owner name: GDF SUEZ S.A., FR

Free format text: FORMER OWNER: GAZ DE FRANCE (SERVICE NATIONAL), PARIS, FR

Effective date: 20111028

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20160527

Year of fee payment: 16

Ref country code: ES

Payment date: 20160525

Year of fee payment: 16

Ref country code: DE

Payment date: 20160524

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20160525

Year of fee payment: 16

Ref country code: FR

Payment date: 20160526

Year of fee payment: 16

Ref country code: BE

Payment date: 20160525

Year of fee payment: 16

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 60115773

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20170615

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20180228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180103

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170615

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170615

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170630

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20170630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170630

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20181106

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170616