WO2005039367A1 - Ignition method for a solid fuel apparatus and apparatus for carrying out said method - Google Patents

Ignition method for a solid fuel apparatus and apparatus for carrying out said method Download PDF

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Publication number
WO2005039367A1
WO2005039367A1 PCT/FR2004/002655 FR2004002655W WO2005039367A1 WO 2005039367 A1 WO2005039367 A1 WO 2005039367A1 FR 2004002655 W FR2004002655 W FR 2004002655W WO 2005039367 A1 WO2005039367 A1 WO 2005039367A1
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WO
WIPO (PCT)
Prior art keywords
hot air
fuel
receptacle
ashtray
piping
Prior art date
Application number
PCT/FR2004/002655
Other languages
French (fr)
Inventor
Didier Le Bleis
Original Assignee
Didier Le Bleis
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 Didier Le Bleis filed Critical Didier Le Bleis
Priority to EP04817286A priority Critical patent/EP1699330A1/en
Priority to US10/576,577 priority patent/US20070131216A1/en
Publication of WO2005039367A1 publication Critical patent/WO2005039367A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
    • F23Q7/02—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs for igniting solid fuel
    • F23Q7/04—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs for igniting solid fuel with fans for transfer of heat to fuel
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J37/00—Baking; Roasting; Grilling; Frying
    • A47J37/06—Roasters; Grills; Sandwich grills
    • A47J37/07—Roasting devices for outdoor use; Barbecues
    • A47J37/0754—Roasting devices for outdoor use; Barbecues with blowers providing forced air circulation
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J37/00—Baking; Roasting; Grilling; Frying
    • A47J37/06—Roasters; Grills; Sandwich grills
    • A47J37/07—Roasting devices for outdoor use; Barbecues
    • A47J37/0786—Accessories
    • A47J37/079—Charcoal igniting devices

Definitions

  • the present invention relates to solid fuel appliances, in particular to heating or cooking appliances of the vertical or horizontal barbecue type, and more particularly to the ignition methods and systems for this type of appliance. It is known that the ignition of a solid fuel appliance, in particular a barbecue type heating or cooking appliance, that is to say the start of fuel combustion, is responsible for the majority of accidents caused by these devices.
  • the present invention aims to overcome these drawbacks and to provide other advantages. More specifically, it consists of a method of igniting a solid fuel appliance, in particular a heating or cooking appliance of the barbecue type, characterized in that it comprises a step consisting in blowing hot air over the at least part of said solid fuel placed in a receptacle of said apparatus, in order to start the combustion of said at least part of the fuel.
  • the method according to the invention also consists in blowing hot air after the start of combustion of said at least part of the fuel, on said fuel, in order to accelerate the extension of combustion of said fuel or to fuel combustion, in the receptacle.
  • the method according to the invention also consists in blowing hot air onto said fuel before the start of combustion of said at least part of the fuel, with a view to removing moisture from said fuel.
  • a solid fuel appliance in particular a barbecue type heating or cooking appliance, intended to implement a method according to the invention, comprising a receptacle intended to contain said solid fuel, characterized in that 'It comprises at least means for generating a flow of hot air over at least part of said fuel.
  • said receptacle comprises a hearth grate, an ashtray placed under the hearth grate, said hearth grate and said ashtray being placed at the bottom of said receptacle, and said means for generating a flow of hot air over a at least part of said fuel comprise: - a pipe for conveying the flow of hot air into the receptacle, one end of which opens at the level of said hearth grate in the receptacle or above it, - a flow generator d hot air placed outside the receptacle and connected to the other end of said piping.
  • said piping for conveying the flow of hot air into the receptacle further comprises means for supplying said ashtray with hot air.
  • the means for supplying the ashtray with hot air make it possible to diffuse the hot air below the hearth grate and to distribute it more widely through the hearth grate in the fuel placed in the receptacle on the hearth grate .
  • the hot air diffusion points in the fuel can be distributed over a larger area.
  • the apparatus according to the invention comprises means for closing off said hot air supply to said ashtray, movable between two positions, a first in which the hot air supply to the ashtray is open, and a second in which the hot air supply to the ashtray is closed.
  • This feature allows the operator to choose a distribution of hot air as required.
  • the apparatus according to the invention comprises means for regulating the flow of hot air conveyed by said piping. This feature allows an operator to modify the air flow drawn from the fuel as required.
  • the apparatus according to the invention comprises means for diffusing the flow of hot air in a horizontal plane and radially, in the receptacle.
  • said piping comprises at one end connected to an air flow generator, a plurality of sleeves of different diameters, respectively comprising one or more inlets, making it possible to adapt, by means of quick junction, one or several heating resistance fans.
  • This characteristic makes it possible to adapt, by simple fitting or by any other known quick-connection system, one or more fans with heating resistors, for example commercially available, such as "hair dryer” and “heat gun” among others, which can be removed once the ignition operation is complete, or left connected to activate the embers by oxygenation, in order to increase the temperature of the hearth.
  • said piping is adaptable to said device by simply drilling the bottom of the ashtray on which it is quickly fixed by threading, lugs, crenellated ring at quarter turn or by a quick joining system.
  • This feature allows the piping to adapt to existing solid fuel devices, in order to equip such devices existing to date, with an ignition system according to the invention.
  • the piping emerges in the ashtray until it is flush with the grate of the hearth of said appliance.
  • the piping is fixed to said ashtray by quick joining means, allowing rapid removal of the piping to allow emptying of the ashtray.
  • the piping is pierced with oblique holes on its upper periphery in order to diffuse as widely as possible, by virtue of the division of the flow of hot air caused by a frustoconical washer disposed inside said piping, dividing the hot air on the one hand towards the ashtray and on the other hand towards the receptacle in which is the hearth of said apparatus.
  • FIG. 1 represents a sectional view of a first exemplary embodiment of a barbecue-type cooking appliance according to the invention.
  • FIGS. 1 and 2 represents a partial sectional view of a second exemplary embodiment of a barbecue-type cooking appliance according to the invention.
  • FIG. 3 represents an enlarged detail of FIG. 1.
  • the apparatus represented in FIGS. 1 and 2 comprises: - a receptacle 6 surmounted by a chassis 7 comprising a cooking grate 8 whose level of attachment to the chassis 7 is ava ntagely adjustable relative to the bottom of the receptacle, - a hearth grate 9 placed at the bottom of the receptacle, - an ashtray 10 placed under the hearth grate, - a pipe 1 for conveying the flow of hot air in the receptacle 6, one end of which opens at the hearth grate in the receptacle or above it, - a generator 3, 4, 5 of hot air flow placed outside the receptacle 6 and connected to the other end of the piping 1, capable of supplying heated air preferably at a temperature of the order of 500 ° C.
  • the air drawn is for example supplied by a manual 4 or electric 5 fan, mono or with multiple speeds, equipped with one or more resistors electrical 3 at its output, preferably controlled by a switch, remote control or any other equivalent control device, advantageously making it possible to quickly evacuate any moisture from the fuel before starting, which can advantageously be automatic, and then to stir up if necessary embers, depending on the temperature and speed of cooking required.
  • the piping 1 is advantageously provided with a series of sleeves 12 of different diameters, with one or more inlets, making it possible to adapt, by simple fitting or by any other known quick-connect system, one or more fans with heating resistors available on the market. such as "hair dryer” or “heat gun” among others, which can be removed once the lighting operation is complete, or kept to activate the embers by oxygenation, in order to increase the temperature of the hearth.
  • the piping 1, whether or not fitted with the flow control butterfly valve 2 can be adapted to the majority of existing barbecues by simply drilling the bottom of the ashtray to which it is quickly fixed by threading, lugs, crenellated ring at quarter turn or by any means another known quick-connect system.
  • the piping 1 emerges for example in the ashtray until substantially flush with the grate 9 of the hearth, as shown in FIGS. 1 and 2, in order to avoid the dispersion of the ashes by the breath emanating therefrom, and is easily removed to empty it .
  • the pipe 1 is advantageously pierced with oblique holes 14 on its upper periphery in order to diffuse, thanks to the division of the flow of hot air caused by a frustoconical washer 13 placed transversely in the pipe 1, the air arriving at the largest possible home.
  • oblique holes 14 on its upper periphery in order to diffuse, thanks to the division of the flow of hot air caused by a frustoconical washer 13 placed transversely in the pipe 1, the air arriving at the largest possible home.
  • the piping 1 emerges directly in the receptacle above the hearth grid, the other end of the piping being connected to the generator 3, 4, 5 of hot air flow, thus supplying the ashtray with hot air.
  • the emergence of the piping in the receptacle 6 is advantageously made by means of a movable diffuser 15, also making it possible to close or open the supply of hot air to the ashtray 10, according to the position that the operator makes adopt, for example by simple rotation of the diffuser 15.
  • the diffuser 15 can be in the form of a fitted cap rotating on the end of the pipe 1, pierced with holes suitable for diffusing the hot air, coming to cap the end of the pipe 1, the holes in the diffuser 15 being arranged so as to advantageously make it possible to diffuse the flow of hot air in a horizontal plane and radially, in the receptacle 6 and also advantageously in the ashtray 10 when the holes concerned in the diffuser 15 are in correspondence with the holes 14 drilled in the piping 1, as shown in Figure 3.
  • the removable diffuser 15 emerging in the hearth is closed on its upper part 16 flat or convex, in order to diffuse the entire flow of hot air in a horizontal plane in the receptacle and according to the needs of the operator in the ashtray in the upper part thereof.
  • the piping 1 is advantageously fixed to the ashtray 10 by any known quick connection means, for example a fitting or a quick coupler, allowing rapid removal of the piping to allow emptying of the ashtray.
  • the present invention makes it possible to light a barbecue without a match or lighter in less than a minute with air drawn at 500 ° C., and cooking can begin three minutes after lighting. Ignition with a wet fuel is not a problem, the moisture being evacuated in a few seconds by the hot drawn air. Cooking can be accelerated by supplying the receptacle with hot air during this, or normal by stopping the supply of hot air. As the appliance does not have an ashtray, the hot air can be supplied directly to the receptacle.
  • the hot air may be supplied by a gas burner and be drawn by a manual fan.
  • the hot air ignition system is also applicable to inserts, wood and charcoal stoves, chimneys or any other heating or cooking means using solid fuels based on wood, coal, or petroleum residues.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Baking, Grill, Roasting (AREA)
  • Solid-Fuel Combustion (AREA)

Abstract

The invention relates to an ignition method for a solid fuel apparatus, in particular a heating apparatus or barbecue-type cooking apparatus, said method being characterised in comprising a step of blowing hot air on at least one part of said solid fuel which is arranged in a container (6) of said apparatus, in order to start the combustion of the at least one fuel part. The invention also relates to a solid fuel apparatus, in particular a heating apparatus or barbecue-type cooking apparatus, for carrying out a method according to claim (1). Said apparatus, which comprises a container (6) for containing said solid fuel, is characterised in comprising at least several means (3, 4, 5) for generating a hot air stream on a part at least of said fuel.

Description

PROCEDE D'ALLUMAGE D'UN APPAREIL A COMBUSTIBLE SOLIDE, ET APPAREIL PERMETTANT DE METTRE EN ŒUVRE LE PROCEDE METHOD OF IGNITION OF A SOLID FUEL APPARATUS, AND APPARATUS FOR CARRYING OUT THE METHOD
La présente invention se rapporte aux appareils à combustible solide, en particulier aux appareils de chauffage, ou de cuisson de type barbecue verticaux ou horizontaux, et plus particulièrement aux procédés et systèmes d'allumage pour ce type d'appareil. On sait que l'allumage d'un appareil à combustible solide, nota mment un appareil de chauffage ou de cuisson de type barbecue, c'est à dire le démarrage de la combustion du combustible, est responsable de la majorité des accidents provoqués par ces appareils. La présente invention vise à pallier ces inconvénients et à apporter d'autres avantages. Plus précisément, elle consiste en un procédé d'all u mage d'un appareil à combustible solide, notamment appareil de chauffage, ou de cuisson de type barbecue, caractérisé en ce qu'il comprend une étape consistant à souffler un air chaud sur au moins une partie dudit combustible solide placé dans un réceptacle dudit appareil, afin de démarrer la combustion de ladite a u moins une partie du combustible. Le démarrage de la combustion du combustible avec un flux d'air chaud permet d'éviter toute utilisation d'un dispositif d'allumage à feu, par exe m ple de type allumette ou à apport de flamme extérieure ou intérieure, et notamment permet d'éviter l'adjonction de divers produits inflammables plus o u moins toxiques et dangereux de type combustible liquide. Le combustible solide peut être par exemple du papier, du petit bois, mais également directement du charbon de bois ou tout autre combustible solide du marché. Selon une caractéristique avantageuse, le procédé selon l'invention consiste en outre à souffler un air chaud après le démarrage de la combustion de ladite au moins une partie du combustible, sur ledit combustible, en vue d'accélérer l'extension de la combustion dudit combustible ou d'attiser la combustion, dans le réceptacle. Ainsi, cette caractéristique permet d'accélérer la phase de démarrage d e la combustion et d'extension de celle-ci afin d'obtenir un niveau opération nel de l'appareil le plus rapidement possible, et/ou permet d'attiser la combustion suivant la température et la rapidité de cuisson demandée. Selon une caractéristique avantageuse, le procédé selon l'invention consiste en outre à souffler un air chaud sur ledit combustible avant le démarrage de la combustion de ladite au moins une partie du combustible, e n vue d'évacuer l'humidité dudit combustible. L'invention se rapporte également à un appareil à combustible solide, notamment appareil de chauffage ou de cuisson de type barbecue, destiné à mettre en œuvre un procédé selon l'invention, comprenant un réceptacle destiné à contenir ledit combustible solide, caractérisé en ce qu'il comporte a u moins des moyens pour générer un flux d'air chaud sur une partie au moins dudit combustible. Selon une caractéristique avantageuse, ledit réceptacle comprend u ne grille de foyer, un cendrier placé sous la grille de foyer, ladite grille de foyer et ledit cendrier étant placés en fond dudit réceptacle, et lesdits moyens pour générer un flux d'air chaud sur une partie au moins dudit combustible comprennent : - une tuyauterie pour acheminer le flux d'air chaud dans le réceptacle, dont une extrémité débouche au niveau de ladite grille de foyer dans le réceptacle ou au dessus de celle-ci, - un générateur de flux d'air chaud placé hors du réceptacle et raccordé à l'autre extrémité de ladite tuyauterie. Selon une caractéristique avantageuse, ladite tuyauterie pour acheminer le flux d'air chaud dans le réceptacle, dont une extrémité débouche au niveau de ladite grille de foyer ou au dessus de celle-ci et dont l'autre extrémité est raccordée à un générateur de flux d'air chaud, comprend en outre des moyens d'alimentation dudit cendrier en air chaud. Les moyens d'alimentation du cendrier en air chaud permettent d e diffuser l'air chaud au dessous de la grille de foyer et de répartir plus largement celui-ci à travers la grille de foyer dans le combustible placé dans le réceptacle sur la grille de foyer. Ainsi, les points de diffusion de l'air chaud dans le combustible peuvent être répartis sur une plus grande surface. Selon une caractéristique avantageuse, l'appareil selon l'invention comprend des moyens d'obturation de ladite alimentation en air chaud dudit cendrier, mobiles entre deux positions, une première dans laquelle l'alimentation en air chaud du cendrier est ouverte, et une deuxième dans laquelle l'alimentation en air chaud du cendrier est fermée. Cette caractéristique permet à l'opérateur un choix de distribution de l'air chaud selon les besoins. Selon une caractéristique avantageuse, l'appareil selon l'invention comprend moyens de régulation du débit d'air chaud acheminé par ladite tuyauterie. Cette caractéristique permet à un opérateur de modifier le débit d'air puisé sur le combustible selon les besoins. Selon une caractéristique avantageuse, l'appareil selon l'invention comprend des moyens de diffusion du flux d'air chaud dans un plan horizontal et de manière radiale, dans le réceptacle. Cette caractéristique permet de répartir et d'allonger le trajet de l'air chaud dans le combustible et permet ainsi de tirer un meilleur rendement d u système d'allumage à air chaud. Selon une caractéristique avantageuse, ladite tuyauterie comprend à u ne extrémité raccordée à un générateur de flux d'air, une pluralité de manchons de différents diamètres, comportant respectivement une ou plusieurs entrées, permettant d'adapter par un moyen de jonction rapide, un ou plusieurs ventilateurs à résistance chauffante. Cette caractéristique permet d'adapter par simple emmanchement ou par tout autres systèmes connus de jonction rapide, un ou plusieurs ventilateurs à résistances chauffantes par exemple disponible dans le commerce, tel q ue "sèche-cheveux" et "décapeur thermique" entre autres, pouvant être déposés une fois l'opération d'allumage terminée, ou laissés raccordés pour activer les braises par oxygénation, afin d'augmenter la température du foyer. Selon une caractéristique avantageuse, ladite tuyauterie est adaptable sur ledit appareil par simple perçage du fond du cendrier sur lequel elle est fixée rapidement par filetage, ergots, bague crénelée à quart de tour ou par u n système de jonction rapide. Cette caractéristique permet à la tuyauterie de s'adapter sur les appareils existant à combustible solide, afin d'équiper de tels appareils existant à ce jour, d'un système d'allumage conforme à l'invention. Selon une caractéristique avantageuse, la tuyauterie émerge dans le cendrier jusqu'à affleurer la grille du foyer dudit appareil. Selon une caractéristique avantageuse, la tuyauterie est fixée sur ledit cendrier par des moyens de jonction rapide, permettant une dépose rapide d e la tuyauterie afin de permettre le vidage du cendrier. Selon une caractéristique avantageuse, la tuyauterie est percée de trous obliques sur son pourtour supérieur afin de diffuser le plus largement possible, grâce à la division du flux d'air chaud provoqué par une rondelle tronconique disposée à l'intérieur de ladite tuyauterie, divisant l'air chaud d'une part vers le cendrier et d'autre part vers le réceptacle dans lequel s e trouve le foyer dudit appareil. D'autres caractéristiques apparaîtront à la lecture qui suit de deux exemples de mode de réalisation d'un procédé et d'un appareil selon l'invention, accompagnée des dessins annexés, exemples donnés à titre illustratif non limitatif. La figure 1 représente une vue en coupe d'un premier exemple d e mode de réalisation d'un appareil de cuisson de type barbecue de selon l'invention. La figure 2 représente une vue partielle en coupe d'un deuxième exemple de mode de réalisation d'un appareil de cuisson de type barbecue d e selon l'invention. La figure 3 représente un détail agrandi de la figure 1. L'appareil représenté sur les figures 1 et 2 comprend : - un réceptacle 6 surmonté d'un châssis 7 comportant une grille de cuisson 8 dont le niveau de fixation sur le châssis 7 est ava ntageusement réglable par rapport au fond du réceptacle, - une grille 9 de foyer placée en fond de réceptacle, - un cendrier 10 placé sous la grille de foyer, - une tuyauterie 1 pour acheminer le flux d'air chaud dans le réceptacle 6, dont une extrémité débouche au niveau de la grille de foyer dans le réceptacle ou au dessus de celle-ci, - un générateur 3, 4, 5 de flux d'air chaud placé hors du réceptacle 6 et raccordé à l'autre extrémité de la tuyauterie 1, apte à fournir un air chauffé d e préférence à une température de l'ordre de 500° C aux moyens de résistances électriques par exemple, - des pieds 11 de soutien du réceptacle 6. Le flux d'air chaud, canalisé dans la tuyauterie 1 de forme et de section adaptée au cendrier 10, est avantageusement régulé par la rotation d'un papillon 2 qui, positionné manuellement, en modifie le débit à volonté. L'air puisé est par exemple fourni par un ventilateur manuel 4 ou électrique 5, mono ou à vitesses multiples, équipé d'une ou plusieurs résistances électriques 3 à sa sortie, de préférence commandées par interrupteur, télécommande ou tout autre dispositif équivalent de commande, permettant avantageusement d'évacuer rapidement toute humidité du combustible avant de procéder au démarrage qui peut être avantageusement automatique, et d'attiser ensuite si besoin les braises, suivant la température et la rapidité d e cuisson demandée. La tuyauterie 1 est avantageusement prévue avec une série d e manchons 12 de différents diamètres, à une ou plusieurs entrées, permettant d'adapter par simple emmanchement ou par tout autre système connu d e jonction rapide, un ou plusieurs ventilateurs à résistances chauffantes disponibles dans le commerce tel que "sèche-cheveux" ou "décapeur thermique" entre autres, pouvant être déposés une fois l'opération d'allumage terminée, ou conservés pour activer les braises par oxygénation, afin d'augmenter la température du foyer. La tuyauterie 1, équipée ou non du papillon de réglage de débit 2, est adaptable sur la majorité des barbecues existant par simple perçage du fond du cendrier sur lequel elle est fixée rapidement par filetage, ergots, bague crénelée à quart de tour ou par tout autre système connu de jonction rapide. La tuyauterie 1 émerge par exemple dans le cendrier jusqu'à sensiblement affleurer la grille 9 du foyer, comme représenté sur les figures 1 et 2, afin d'éviter le dispersement des cendres par le souffle en émanant, et se dépose facilement pour le vider. La tuyauterie 1 est avantageusement percée de trous obliques 14 sur son pourtour supérieur afin de diffuser, grâce à la division d u flux d'air chaud provoqué par une rondelle tronconique 13 placée transversalement dans la tuyauterie 1, le plus largement possible l'air arrivant au foyer. Sur l'exemple représenté sur la figure 3, la tuyauterie 1 émerge directement dans le réceptacle au dessus de la grille de foyer, l'autre extrémité de la tuyauterie étant est raccordée au générateur 3, 4, 5 de flux d'air chaud, alimentant ainsi le cendrier en air chaud. L'émergence de la tuyauterie dans le réceptacle 6 se fait avantageusement au moyen d'un diffuseur 15 mobile, permettant en outre d'obturer ou d'ouvrir l'alimentation en air chaud du cendrier 10, selon la position que l'opérateur lui fait adopter, par exemple par simple rotation du diffuseur 15. Le diffuseur 15 peut se présenter sous la forme d'un capuchon emboîté tournant sur l'extrémité de la tuyauterie 1, percé de trous appropriés pour diffuser l'air chaud, venant coiffer l'extrémité de la tuyauterie 1, les trous du diffuseu r 15 étant agencés de manière à permettre avantageusement de diffuser le flux d'air chaud dans un plan horizontal et d e manière radiale, dans le réceptacle 6 et en outre avantageusement dans le cendrier 10 lorsque les trous concernés du diffuseur 15 sont en correspondance avec les trous 14 percés dans la tuyauterie 1, comme représenté sur la figure 3. Le diffuseur amovible 15 émergeant dans le foyer est obturé sur sa partie supérieure 16 plate ou convexe, afin de diffuser la totalité du flux d'air chaud dans un plan horizontal dans le réceptacle et selon les besoins d e l'opérateur dans le cendrier en partie supérieure de celui-ci. La tuyauterie 1 est avantageusement fixée sur le cendrier 10 par tout moyen de jonction rapide connu, par exemple un emmanchement ou u ne attache rapide, permettant une dépose rapide de la tuyauterie afin d e permettre le vidage du cendrier. La présente invention permet d'allumer un barbecue sans allumette ni briquet en moins d'une minute avec une air puisé à 500° C, et la cuisson peut commencer trois minutes après l'allumage. L'allumage avec un combustible humide ne pose pas de problème, l'humidité étant évacuée en quelques secondes par l'air chaud puisé. La cuisson peut être accélérée en alimentant le réceptacle en air chaud pendant celle-ci, ou normale en arrêtant l'alimentation en air chaud. Dans la mesure où l'appareil ne possède pas de cendrier, l'arrivée d'air chaud peut se faire dans le réceptacle directement. L'air chaud peut d e manière alternative à la description qui précède, être fourni par un brûleur à gaz et être puisé par un ventilateur manuel. Le système d'allumage par air chaud est applicable également a ux inserts, poêles à bois et au charbon, cheminée ou tout autre moyen d e chauffage ou de cuisson utilisant des combustibles solides à base de bois, charbon, ou résidus pétrolifères. The present invention relates to solid fuel appliances, in particular to heating or cooking appliances of the vertical or horizontal barbecue type, and more particularly to the ignition methods and systems for this type of appliance. It is known that the ignition of a solid fuel appliance, in particular a barbecue type heating or cooking appliance, that is to say the start of fuel combustion, is responsible for the majority of accidents caused by these devices. The present invention aims to overcome these drawbacks and to provide other advantages. More specifically, it consists of a method of igniting a solid fuel appliance, in particular a heating or cooking appliance of the barbecue type, characterized in that it comprises a step consisting in blowing hot air over the at least part of said solid fuel placed in a receptacle of said apparatus, in order to start the combustion of said at least part of the fuel. Starting the combustion of the fuel with a flow of hot air makes it possible to avoid any use of a fire ignition device, for example of the match type or with an external or internal flame supply, and in particular makes it possible to '' avoid the addition of various more or less toxic and dangerous flammable products of the liquid fuel type. The solid fuel can be for example paper, small wood, but also directly charcoal or any other solid fuel on the market. According to an advantageous characteristic, the method according to the invention also consists in blowing hot air after the start of combustion of said at least part of the fuel, on said fuel, in order to accelerate the extension of combustion of said fuel or to fuel combustion, in the receptacle. Thus, this characteristic makes it possible to accelerate the start-up phase of the combustion and its extension in order to obtain an operational level of the appliance as quickly as possible, and / or allows to fan the following combustion the required temperature and speed of cooking. According to an advantageous characteristic, the method according to the invention also consists in blowing hot air onto said fuel before the start of combustion of said at least part of the fuel, with a view to removing moisture from said fuel. The invention also relates to a solid fuel appliance, in particular a barbecue type heating or cooking appliance, intended to implement a method according to the invention, comprising a receptacle intended to contain said solid fuel, characterized in that 'It comprises at least means for generating a flow of hot air over at least part of said fuel. According to an advantageous characteristic, said receptacle comprises a hearth grate, an ashtray placed under the hearth grate, said hearth grate and said ashtray being placed at the bottom of said receptacle, and said means for generating a flow of hot air over a at least part of said fuel comprise: - a pipe for conveying the flow of hot air into the receptacle, one end of which opens at the level of said hearth grate in the receptacle or above it, - a flow generator d hot air placed outside the receptacle and connected to the other end of said piping. According to an advantageous characteristic, said piping for conveying the flow of hot air into the receptacle, one end of which opens at or above said hearth grate and the other end of which is connected to a flow generator hot air, further comprises means for supplying said ashtray with hot air. The means for supplying the ashtray with hot air make it possible to diffuse the hot air below the hearth grate and to distribute it more widely through the hearth grate in the fuel placed in the receptacle on the hearth grate . Thus, the hot air diffusion points in the fuel can be distributed over a larger area. According to an advantageous characteristic, the apparatus according to the invention comprises means for closing off said hot air supply to said ashtray, movable between two positions, a first in which the hot air supply to the ashtray is open, and a second in which the hot air supply to the ashtray is closed. This feature allows the operator to choose a distribution of hot air as required. According to an advantageous characteristic, the apparatus according to the invention comprises means for regulating the flow of hot air conveyed by said piping. This feature allows an operator to modify the air flow drawn from the fuel as required. According to an advantageous characteristic, the apparatus according to the invention comprises means for diffusing the flow of hot air in a horizontal plane and radially, in the receptacle. This characteristic makes it possible to distribute and lengthen the path of the hot air in the fuel and thus makes it possible to obtain better efficiency from the hot air ignition system. According to an advantageous characteristic, said piping comprises at one end connected to an air flow generator, a plurality of sleeves of different diameters, respectively comprising one or more inlets, making it possible to adapt, by means of quick junction, one or several heating resistance fans. This characteristic makes it possible to adapt, by simple fitting or by any other known quick-connection system, one or more fans with heating resistors, for example commercially available, such as "hair dryer" and "heat gun" among others, which can be removed once the ignition operation is complete, or left connected to activate the embers by oxygenation, in order to increase the temperature of the hearth. According to an advantageous characteristic, said piping is adaptable to said device by simply drilling the bottom of the ashtray on which it is quickly fixed by threading, lugs, crenellated ring at quarter turn or by a quick joining system. This feature allows the piping to adapt to existing solid fuel devices, in order to equip such devices existing to date, with an ignition system according to the invention. According to an advantageous characteristic, the piping emerges in the ashtray until it is flush with the grate of the hearth of said appliance. According to an advantageous characteristic, the piping is fixed to said ashtray by quick joining means, allowing rapid removal of the piping to allow emptying of the ashtray. According to an advantageous characteristic, the piping is pierced with oblique holes on its upper periphery in order to diffuse as widely as possible, by virtue of the division of the flow of hot air caused by a frustoconical washer disposed inside said piping, dividing the hot air on the one hand towards the ashtray and on the other hand towards the receptacle in which is the hearth of said apparatus. Other characteristics will appear on reading the following of two exemplary embodiments of a method and an apparatus according to the invention, accompanied by the appended drawings, examples given by way of nonlimiting illustration. FIG. 1 represents a sectional view of a first exemplary embodiment of a barbecue-type cooking appliance according to the invention. FIG. 2 represents a partial sectional view of a second exemplary embodiment of a barbecue-type cooking appliance according to the invention. FIG. 3 represents an enlarged detail of FIG. 1. The apparatus represented in FIGS. 1 and 2 comprises: - a receptacle 6 surmounted by a chassis 7 comprising a cooking grate 8 whose level of attachment to the chassis 7 is ava ntagely adjustable relative to the bottom of the receptacle, - a hearth grate 9 placed at the bottom of the receptacle, - an ashtray 10 placed under the hearth grate, - a pipe 1 for conveying the flow of hot air in the receptacle 6, one end of which opens at the hearth grate in the receptacle or above it, - a generator 3, 4, 5 of hot air flow placed outside the receptacle 6 and connected to the other end of the piping 1, capable of supplying heated air preferably at a temperature of the order of 500 ° C. by means of electrical resistances for example, - feet 11 supporting the receptacle 6. The flow of hot air, channeled in the piping 1 of suitable shape and section e to the ashtray 10, is advantageously regulated by the rotation of a butterfly 2 which, positioned manually, modifies the flow at will. The air drawn is for example supplied by a manual 4 or electric 5 fan, mono or with multiple speeds, equipped with one or more resistors electrical 3 at its output, preferably controlled by a switch, remote control or any other equivalent control device, advantageously making it possible to quickly evacuate any moisture from the fuel before starting, which can advantageously be automatic, and then to stir up if necessary embers, depending on the temperature and speed of cooking required. The piping 1 is advantageously provided with a series of sleeves 12 of different diameters, with one or more inlets, making it possible to adapt, by simple fitting or by any other known quick-connect system, one or more fans with heating resistors available on the market. such as "hair dryer" or "heat gun" among others, which can be removed once the lighting operation is complete, or kept to activate the embers by oxygenation, in order to increase the temperature of the hearth. The piping 1, whether or not fitted with the flow control butterfly valve 2, can be adapted to the majority of existing barbecues by simply drilling the bottom of the ashtray to which it is quickly fixed by threading, lugs, crenellated ring at quarter turn or by any means another known quick-connect system. The piping 1 emerges for example in the ashtray until substantially flush with the grate 9 of the hearth, as shown in FIGS. 1 and 2, in order to avoid the dispersion of the ashes by the breath emanating therefrom, and is easily removed to empty it . The pipe 1 is advantageously pierced with oblique holes 14 on its upper periphery in order to diffuse, thanks to the division of the flow of hot air caused by a frustoconical washer 13 placed transversely in the pipe 1, the air arriving at the largest possible home. In the example shown in FIG. 3, the piping 1 emerges directly in the receptacle above the hearth grid, the other end of the piping being connected to the generator 3, 4, 5 of hot air flow, thus supplying the ashtray with hot air. The emergence of the piping in the receptacle 6 is advantageously made by means of a movable diffuser 15, also making it possible to close or open the supply of hot air to the ashtray 10, according to the position that the operator makes adopt, for example by simple rotation of the diffuser 15. The diffuser 15 can be in the form of a fitted cap rotating on the end of the pipe 1, pierced with holes suitable for diffusing the hot air, coming to cap the end of the pipe 1, the holes in the diffuser 15 being arranged so as to advantageously make it possible to diffuse the flow of hot air in a horizontal plane and radially, in the receptacle 6 and also advantageously in the ashtray 10 when the holes concerned in the diffuser 15 are in correspondence with the holes 14 drilled in the piping 1, as shown in Figure 3. The removable diffuser 15 emerging in the hearth is closed on its upper part 16 flat or convex, in order to diffuse the entire flow of hot air in a horizontal plane in the receptacle and according to the needs of the operator in the ashtray in the upper part thereof. The piping 1 is advantageously fixed to the ashtray 10 by any known quick connection means, for example a fitting or a quick coupler, allowing rapid removal of the piping to allow emptying of the ashtray. The present invention makes it possible to light a barbecue without a match or lighter in less than a minute with air drawn at 500 ° C., and cooking can begin three minutes after lighting. Ignition with a wet fuel is not a problem, the moisture being evacuated in a few seconds by the hot drawn air. Cooking can be accelerated by supplying the receptacle with hot air during this, or normal by stopping the supply of hot air. As the appliance does not have an ashtray, the hot air can be supplied directly to the receptacle. As an alternative to the above description, the hot air may be supplied by a gas burner and be drawn by a manual fan. The hot air ignition system is also applicable to inserts, wood and charcoal stoves, chimneys or any other heating or cooking means using solid fuels based on wood, coal, or petroleum residues.

Claims

REVENDICATIONS
1) Procédé d'allumage d'un appareil à combustible solide, notamment appareil de chauffage, ou de cuisson de type barbecue, caractérisé en ce qu'ïï comprend une étape consistant à souffler un air chaud sur au moins une partie dudit combustible solide placé dans un réceptacle (6) dudit appareil, afin d e démarrer la combustion de ladite au moins une partie du combustible.1) Method for igniting a solid fuel appliance, in particular a heating or cooking appliance of the barbecue type, characterized in that it comprises a step consisting in blowing hot air over at least part of said solid fuel placed in a receptacle (6) of said apparatus, in order to start the combustion of said at least part of the fuel.
2) Procédé suivant la revendication 1, caractérisé en ce qu'il consiste e n outre à souffler un air chaud après le démarrage de la combustion de ladite a u moins une partie du combustible, sur ledit combustible, en vue d'accélérer l'extension de la combustion dudit combustible ou d'attiser la combustion, dans le réceptacle (6). 3) Procédé suivant la revendication 1 ou 2, caractérisé en ce qu'il consiste en outre à souffler un air chaud sur ledit combustible avant le démarrage de la combustion de ladite au moins une partie du combustible, en vue d'évacuer l'humidité dudit combustible. 4) Appareil à combustible solide, notamment appareil de chauffage ou de cuisson de type barbecue, destiné à mettre en œuvre un procédé suivant la revendication 1, comprenant un réceptacle (6) destiné à contenir ledit combustible solide, caractérisé en ce qu'il comporte au moins des moyens (3, 4, 5) pour générer un flux d'air chaud sur une partie au moins dudit combustible.2) Method according to claim 1, characterized in that it further comprises blowing hot air after the start of combustion of said at least part of the fuel, on said fuel, in order to accelerate the extension of the combustion of said fuel or of fanning the combustion, in the receptacle (6). 3) Method according to claim 1 or 2, characterized in that it further comprises blowing hot air on said fuel before the start of combustion of said at least part of the fuel, in order to remove moisture of said fuel. 4) Solid fuel appliance, in particular barbecue type heating or cooking appliance, intended to implement a method according to claim 1, comprising a receptacle (6) intended to contain said solid fuel, characterized in that it comprises at least means (3, 4, 5) for generating a flow of hot air over at least part of said fuel.
5) Appareil suivant la revendication 4, caractérisé en ce que ledit réceptacle (6) comprend une grille (9) de foyer, un cendrier (10) placé sous la grille de foyer, ladite grille de foyer et ledit cendrier étant placés en fond dudit réceptacle, en ce que lesdits moyens pour générer un flux d'air chaud sur une partie au moins dudit combustible comprennent : - une tuyauterie (1) pour acheminer le flux d'air chaud dans le réceptacle, dont une extrémité débouche au niveau de ladite grille dans le réceptacle ou au dessus de celle-ci, - un générateur (3, 4, 5) de flux d'air chaud placé hors du réceptacle et raccordé à l'autre extrémité de ladite tuyauterie. 6) Appareil suivant la revendication 5, caractérisé en ce que ladite tuyauterie (1) pour acheminer le flux d'air chaud dans le réceptacle, dont u ne extrémité débouche au niveau de ladite grille de foyer ou au dessus de celle-ci et dont l'autre extrémité est raccordée à un générateur de flux d'air chaud, comprend en outre des moyens d'alimentation dudit cendrier en air chaud.5) Apparatus according to claim 4, characterized in that said receptacle (6) comprises a grate (9) hearth, an ashtray (10) placed under the hearth grate, said hearth grate and said ashtray being placed at the bottom of said receptacle, in that said means for generating a flow of hot air over at least part of said fuel comprises: - a pipe (1) for conveying the flow of hot air in the receptacle, one end of which opens out at said level grid in the receptacle or above it, - a generator (3, 4, 5) of hot air flow placed outside the receptacle and connected to the other end of said piping. 6) Apparatus according to claim 5, characterized in that said piping (1) for conveying the flow of hot air into the receptacle, one end of which opens at the level of said hearth grate or above it and of which the other end is connected to a hot air flow generator, further comprises means for supplying said ashtray with hot air.
7) Appareil suivant la revendication 6, caractérisé en ce qu'il comprend des moyens d'obturation de ladite alimentation en air chaud dudit cendrier (10), mobiles entre deux positions, une première dans laquelle l'alimentation en air chaud du cendrier est ouverte, et une deuxième dans laquelle l'alimentation en air chaud du cendrier est fermée.7) Apparatus according to claim 6, characterized in that it comprises means for closing said hot air supply to said ashtray (10), movable between two positions, a first in which the hot air supply to the ashtray is open, and a second in which the hot air supply to the ashtray is closed.
8 ) Appareil suivant l'une quelconque des revendications 4 à 7, caractérisé en ce qu'il comprend des moyens de régulation (2) du débit d'air chaud acheminé par ladite tuyauterie (1).8) Apparatus according to any one of claims 4 to 7, characterized in that it comprises means for regulating (2) the flow of hot air supplied by said piping (1).
9 ) Appareil suivant l'une quelconque des revendications 4 à 8, caractérisé en ce qu'il comprend des moyens de diffusion (15) du flux d'air chaud dans un plan horizontal et de manière radiale, dans le réceptacle (6).9) Apparatus according to any one of claims 4 to 8, characterized in that it comprises means (15) for diffusing the flow of hot air in a horizontal plane and radially, in the receptacle (6).
10) Appareil suivant l'une quelconque des revendications 5 à 9, caractérisé en ce que ladite tuyauterie (1) comprend à une extrémité raccordée à un générateur de flux d'air, une pluralité de manchons (12) de différents diamètres, comportant respectivement une ou plusieurs entrées, permettant d'adapter par un moyen de jonction rapide, un ou plusieurs ventilateurs (4, 5) à résistance chauffante (3).10) Apparatus according to any one of claims 5 to 9, characterized in that said piping (1) comprises at one end connected to an air flow generator, a plurality of sleeves (12) of different diameters, comprising respectively one or more inlets, allowing one or more fans (4, 5) with heating resistance (3) to be adapted by quick connection means.
11 ) Appareil suivant l'une quelconque des revendications 5 à 10, caractérisé en ce que ladite tuyauterie (1), est adaptable sur ledit appareil par simple perçage du fond du cendrier (10) sur lequel elle est fixée rapidement par filetage, ergots, bague crénelée à quart de tour ou par un système d e jonction rapide. 12) Appareil suivant l'une quelconque des revendications 5 à 11 , caractérisé en ce que la tuyauterie (1) émerge dans le cendrier ( 10) jusqu'à affleurer la grille (9) du foyer dudit appareil. 13) Appareil suivant l'une quelconque des revendications 5 à 12, caractérisé en ce que la tuyauterie (1) est fixée sur ledit cendrier (10) par des moyens de jonction rapide, permettant une dépose rapide de la tuyauterie afin de permettre le vidage du cendrier.. 14) Appareil suivant l'une quelconque des revendications 5 à 13, caractérisé en ce que la tuyauterie (1) est percée de trous obliques (14) sur son pourtour supérieur afin de diffuser le plus largement possible, grâce à la division du flux d'air chaud provoqué par une rondelle tronconique (13) disposée à l'intérieur de ladite tuyauterie, divisant l'air chaud d'une part vers le cendrier (10) et d'autre part vers le réceptacle dans lequel se trouve le foyer dudit appareil. 11) Apparatus according to any one of claims 5 to 10, characterized in that said piping (1) is adaptable to said apparatus by simply drilling the bottom of the ashtray (10) on which it is quickly fixed by thread, lugs, crenellated ring at quarter turn or by a quick joining system. 12) Apparatus according to any one of claims 5 to 11, characterized in that the piping (1) emerges in the ashtray (10) until it is flush with the grate (9) of the hearth of said apparatus. 13) Apparatus according to any one of claims 5 to 12, characterized in that the piping (1) is fixed to said ashtray (10) by quick coupling means, allowing rapid removal of the piping to allow emptying 14) Apparatus according to any one of claims 5 to 13, characterized in that the piping (1) is pierced with oblique holes (14) on its upper periphery in order to diffuse as widely as possible, thanks to the division of the hot air flow caused by a frustoconical washer (13) disposed inside said piping, dividing the hot air on the one hand towards the ashtray (10) and on the other hand towards the receptacle in which finds the focus of said device.
PCT/FR2004/002655 2003-10-20 2004-10-18 Ignition method for a solid fuel apparatus and apparatus for carrying out said method WO2005039367A1 (en)

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US10/576,577 US20070131216A1 (en) 2004-10-18 2004-10-18 Ignition method for a solid fuel apparatus and apparatus for carrying out said method

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FR0312374A FR2860965B1 (en) 2003-10-20 2003-10-20 IGNITION AND COMBUSTION BOOSTER FOR HORIZONTAL AND VERTICAL WOOD CHARCOAL BARBECUE

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GB2512673A (en) * 2013-04-04 2014-10-08 Sheikh Mohammed Suleman BBQ Airflow System Technology
WO2022017615A1 (en) * 2020-07-23 2022-01-27 Simoes Axel Barbecue-type cooking appliance comprising a vessel for receiving a fuel and a device for initiating the combustion of the fuel
CN114515114A (en) * 2020-11-20 2022-05-20 斯拜德烤架有限公司 System and method for dual mode air control in kettle grills

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US20150272388A1 (en) * 2012-10-11 2015-10-01 Stenberg A/S Chimney starter and an ignite unit
CN104172942B (en) * 2014-08-13 2016-04-06 廖志文 A kind of smokeless roaster
ES2594334B1 (en) * 2015-06-16 2017-09-26 José Antonio MORENO ARBALAT Improvements on a barbecue
FR3041227B1 (en) * 2015-09-23 2018-05-18 Didier Le Bleis SPONTANEOUS AUTO-INFLAMMATION PROCESS FOR SOLID FUEL APPARATUS AND SYSTEM FOR SAVING SOLID FUEL

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WO2022017615A1 (en) * 2020-07-23 2022-01-27 Simoes Axel Barbecue-type cooking appliance comprising a vessel for receiving a fuel and a device for initiating the combustion of the fuel
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CN114515114B (en) * 2020-11-20 2022-11-01 斯拜德烤架有限公司 System and method for dual mode air control in kettle grills

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