EP2246625B1 - Control device for a stove air supply, stove comprising such a device and method of using the same. - Google Patents

Control device for a stove air supply, stove comprising such a device and method of using the same. Download PDF

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Publication number
EP2246625B1
EP2246625B1 EP10161403.0A EP10161403A EP2246625B1 EP 2246625 B1 EP2246625 B1 EP 2246625B1 EP 10161403 A EP10161403 A EP 10161403A EP 2246625 B1 EP2246625 B1 EP 2246625B1
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EP
European Patent Office
Prior art keywords
opening
air
primary
stove
combustion
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.)
Not-in-force
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EP10161403.0A
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German (de)
French (fr)
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EP2246625A1 (en
Inventor
Thierry Rousseau
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Brisach Design
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Brisach Design
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Publication of EP2246625A1 publication Critical patent/EP2246625A1/en
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Publication of EP2246625B1 publication Critical patent/EP2246625B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B5/00—Combustion-air or flue-gas circulation in or around stoves or ranges
    • F24B5/02—Combustion-air or flue-gas circulation in or around stoves or ranges in or around stoves
    • F24B5/021—Combustion-air or flue-gas circulation in or around stoves or ranges in or around stoves combustion-air circulation
    • F24B5/026—Supply of primary and secondary air for combustion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L1/00—Passages or apertures for delivering primary air for combustion 
    • F23L1/02—Passages or apertures for delivering primary air for combustion  by discharging the air below the fire
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L3/00—Arrangements of valves or dampers before the fire
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N3/00—Regulating air supply or draught
    • F23N3/06—Regulating air supply or draught by conjoint operation of two or more valves or dampers
    • F23N3/065—Regulating air supply or draught by conjoint operation of two or more valves or dampers using mechanical means

Definitions

  • the present invention relates to a device for supplying air to a stove, the stove provided with said device and its method of use.
  • the present invention will find its application in all types of stove and more generally heating systems using fuels such as wood, granules, coal etc.
  • Stoves or chimneys are heating systems comprising a combustion chamber closed by a door generally provided with a window to allow visualization of the interior of the combustion chamber without the need to open the door.
  • the primary air circuit also called ignition air circuit or combustion air circuit opens into the combustion chamber under the fuel. It allows a quick ignition by bringing the air directly closer to the site of combustion. However, once the combustion started, too much air in the fuel causes too rapid combustion of it. The energy efficiency is then low. Therefore, after ignition, it is best to reduce the amount of primary air entering the combustion chamber. However, this reduction in the amount of air in the combustion chamber leads to imperfect combustion generating unburned particles that clog the combustion chamber, the flue gas ducts and the glass stove.
  • This secondary air circuit also called smoke air circuit or post-combustion air circuit opens in the upper part of the combustion chamber.
  • the amount of air entering the combustion chamber and resulting from the primary air circuit and that from the secondary air circuit must therefore be modified during combustion.
  • the secondary air / primary air ratio optimal for each moment of combustion depends on several parameters independent of the stove itself: wood moisture, temperature, humidity and configuration of the stove environment etc.
  • the conventional stoves therefore comprise means for controlling the primary air circuit, the air circuit secondary.
  • the user must manipulate each control independently of one another. This manipulation is delicate and it is often difficult for the user to finely adjust the ratio between primary air and secondary air.
  • the user must also adjust by another command the general air flow entering the stove and distributed to the primary and secondary air circuit.
  • This general air flow conditions the power delivered by the stove.
  • the present invention relates to a device for controlling the supply of air to a stove comprising means for varying the flow rate of air entering the stove and means for distributing the combustion air between a heating circuit. primary air and a secondary air circuit of the stove.
  • the variation means comprise at least one air inlet opening and first closure means of said opening.
  • the air inlet opening and the first closure means are movably mounted, preferably in rotation, with respect to each other. According to the relative position of the closure means and the opening of the air inlet, it will be more or less open.
  • the relative position between the air inlet opening and the first shutter means defining a passage section for fresh air.
  • the control of the amount of air entering the stove is very precise while being easy to use.
  • the distribution means comprise a primary air opening connected to the primary air circuit and second means for closing said primary opening, a secondary opening connected to the secondary air circuit and third means for closing said opening. secondary.
  • the relative position between the primary opening and the second closure means defining a passage section for the primary air.
  • the relative position between the secondary opening and the third closure means defining a passage section for the secondary air.
  • the primary and secondary openings and the second and third closure means are movably mounted, preferably in rotation, so that the sum of the passage sections of the primary air and the secondary air is constant.
  • the second and third shutter means are configured to be operated simultaneously, that is to say that the user will only have to act on a control to control both the second and the third shutter means.
  • the means for distributing the combustion air between the primary circuit and the secondary circuit can be actuated simply by a control.
  • the device according to the invention simplifies the use and provides high reliability in the adjustment of the incoming air flow and in the distribution of combustion air between the primary air circuit and the secondary air circuit.
  • the design of the device is particularly simple. It makes it possible to limit the risks of fouling or seizure of the device contributing to a greater safety of use of the stove.
  • the device according to the invention has a limited size and can be easily integrated in types of stoves.
  • the invention also relates to a stove comprising a combustion chamber, a primary air circuit and a secondary air circuit opening into the combustion chamber comprising a device for controlling the air supply of the stove according to any one previous characteristics.
  • the device for controlling the supply of air to a stove comprises means for varying the air flow rate entering the stove and means for distributing the combustion air between a primary air circuit and a combustion chamber. secondary air circuit.
  • Air entering the stove means the air coming from the outside arriving through a fresh air intake duct 15. This incoming air is then called combustion air when it is conveyed towards the room of combustion 21 of the stove 26.
  • This combustion air is conventionally distributed between a primary air circuit 23 and a secondary air circuit 24.
  • the primary air circuit 23 conveys the combustion air into the combustion chamber 21 at the level of the fuel, more precisely below this last.
  • the secondary air circuit 24 conveys the combustion air into the upper part of the combustion chamber 21.
  • the means of variation of the air flow entering the stove 26 comprise an air inlet opening 1 and closure means advantageously movable relative to each other.
  • closure means advantageously movable relative to each other.
  • the section of the air inlet opening 1 will be larger or smaller thus allowing the flow rate of the air to be varied. 26.
  • the closure means and the air inlet opening 1 have a rotational mobility.
  • the device for controlling the supply of air to a stove also comprises means for distributing the combustion air between a primary air circuit and a secondary air circuit.
  • the means for distributing the combustion air between a primary air circuit and a secondary air circuit comprise at least one primary opening 2 connected to a primary air circuit 23 and a secondary opening 3 connected to the air circuit. secondary 24 as well as second and third sealing means.
  • the second closure means are intended to close the primary opening 2 and the third closure means are intended to close the secondary opening 3.
  • the second and third shutter means are configured to be operated simultaneously. That is to say that the user will have to perform only one action to act simultaneously on the second and third shutter means.
  • the second and third closure means and the primary and secondary openings 2 respectively are arranged rotatable relative to each other so that the sum of the flow rates primary opening and secondary opening is constant.
  • the section of the primary opening 2 and the secondary opening 3 is respectively controlled by the second and third sealing means.
  • the second and third closure means being configured to be actuated simultaneously, it is then very simple for the user to control the distribution of combustion air between the primary air circuit 23 and the secondary air circuit 24.
  • the user manipulates only one command to control the primary air inlet and the secondary air inlet.
  • This simultaneous action on the second and third sealing means limits the abrupt variations in the distribution primary air - secondary air. There is no risk of simultaneously closing the two primary 2 and secondary 3 openings and risk extinguishing the fire.
  • the first closure means that are movable relative to the air inlet opening 1.
  • the second and third closure means that are movable relative to the primary openings 2 and secondary 3.
  • the first closure means comprise a first compartment 5 having at least a first opening 11 adapted to be positioned with respect to the air inlet opening 1.
  • the first compartment 5 may be of a shape varied, rectangular or preferably tubular.
  • the first opening 11 advantageously has a surface at least equivalent to that of the air inlet opening 1.
  • the opening air inlet 1 will be open at its maximum ie to 100% of its section.
  • the first compartment 5 and the air inlet opening 1 are movable in rotation with respect to each other, preferably it is the first compartment 5 which is movable and the opening of air inlet 1 is fixed.
  • the section of the air inlet opening 1 is modifiable as a function of the relative position of the first compartment 5, in particular of the first opening 11 relative to the air inlet opening 1. If the first opening 11 is not positioned exactly opposite the air inlet opening 1, then the section of the air inlet opening 1 will be reduced with respect to its maximum opening of 100% as this is represented in figure 6 . Part of the section of the air inlet opening 1 is closed by the first compartment 5.
  • the first closure means comprise a valve adapted to be positioned facing the air inlet opening 1 so as to close more or less.
  • the second and third closure means comprise, according to one embodiment, a second compartment 6.
  • the second compartment 6 is advantageously provided with at least a second opening 12 and a third opening 13 able to be respectively positioned with respect to the primary opening 2 and the secondary opening 3.
  • the second compartment 6 may be of various shapes and preferably of tubular form. The second and third sealing means can thus be actuated simultaneously since they are joined in a second compartment 6.
  • the second and third closure means each comprise a valve adapted to be positioned facing the primary opening 2 and the secondary opening 3 so as to close more or less.
  • the valves are movable and that the primary openings 2 and secondary 3 are fixed.
  • the second and third openings 12, 13 and the primary openings 2 and secondary 3 are advantageously configured so that the sum of the flow rates of the primary opening 2 and the secondary opening 3 is constant.
  • the section of the primary opening 2 is reduced, the section of the secondary opening 3 must be increased so that the sum of the flow rates is always constant.
  • the second and third openings 12, 13 are angularly offset from one another at the second compartment 6 as illustrated in FIG. figure 1 .
  • the third opening 13 is not facing the secondary opening 3. The entire flow of combustion air comes from the primary opening 2.
  • the figure 6 represents an intermediate position where the second opening 12 is partially opposite the secondary opening 2, then the third opening 13 is also partially opposite the secondary opening 3. The sum of the combustion air flow escaping towards the combustion chamber 21 is then shared between the primary opening 2 and the secondary opening 3.
  • the primary openings 2 and secondary 3 are aligned in a longitudinal direction.
  • the primary 2 and secondary 3 openings may also be angularly offset or only the primary 2 and secondary 3 openings are offset angularly while the second and third openings 12, 13 are aligned in a longitudinal direction of the first and second compartments 5, 6.
  • first compartment 5 and the second compartment 6 are arranged in the extension of one another as shown in all the figures. Once the air introduced by the air inlet opening 1, its movement is linear through the first compartment 5 and the second compartment 6.
  • the first compartment 5 and the second compartment 6 are advantageously joined by a sealed connection while remaining free to rotate from one another.
  • O-rings may be provided.
  • This positioning is particularly advantageous because the means for varying the air flow entering the stove 26 and the means of distribution of the combustion air are combined and physically close to each other.
  • the reaction of the stove is immediate because the air circulates in the device in a simple and direct route.
  • the first opening 11 is disposed at the periphery of the first compartment 5 in the same way the second and third openings 12, 13 are disposed at the periphery of the compartment 6. According to another embodiment the first opening 11 is disposed on the base of the compartment 5. The first air opening 11 is then substantially perpendicular to the second and third openings 12, 13.
  • the first sealing means and the second and third sealing means comprise user-actuable rotation shafts 7,8 at their free ends located on the front of the stove 26.
  • the first closure means that is to say the first compartment 5
  • the first rotation shaft 7 fixedly fixed at one of its ends to the first closure means, more specifically to the compartment 5.
  • the second and third shutter means also comprise a second rotating shaft 8 attached to the second and third shutter means, that is to say the second compartment, so that they can be operated simultaneously by the user.
  • the first and second rotation shaft 7, 8 are respectively fixed to the first and second compartments 5, 6 more precisely to the centers of their bases.
  • the first and second rotation shafts 7, 8 are advantageously coaxial.
  • the first rotation shaft 7 extends as an example through the first compartment 5 and the second compartment 6 so that its free end actuated by the user springs outside the stove 26 and is advantageously terminated by a control button 28.
  • the second rotating shaft 8 extends from the second compartment 6 and towards the outside of the stove 26 so that its free end is accessible to the user outside of the stove 26 and is advantageously terminated by a control knob 29.
  • the first rotation shaft 7 thus also extends through the second rotary shaft 8.
  • This arrangement of the coaxial rotation shafts 7, 8 allows an increased sensitivity of the adjustment by the user.
  • this superposition of the control buttons 28, 29 allows a gain of space on the front of the stove 26 and facilitates the integration of the device according to the invention in existing stoves 26.
  • first compartment 5 and the second compartment 6 can be interchanged so that the second rotation shaft 8 extends through the second compartment 6 and then the first compartment 5, then through the first rotation shaft 7 to be accessible to the user outside the stove 26.
  • closure means comprise valves
  • these valves can be mounted on the first and second rotation shafts 7,8.
  • the air inlet opening 1 is formed on a first air circulation chamber 9 and the primary opening 2 and the secondary opening 3 are formed on a second air circulation chamber. 10.
  • the first chamber 9 is fixed and only the first sealing means are movable so as to close more or less the air inlet opening 1.
  • the second chamber 10 is fixed and only the second and third closure means are movable to close more or less the second and third openings 12, 13.
  • the first sealing means are arranged concentrically with the first air circulation chamber 9 and the second and third closure means are arranged concentrically with the second air circulation chamber 10.
  • the first sealing means ie the first compartment 5 is arranged inside the first air circulation chamber 9.
  • the second and third closure means, the second compartment 6, are arranged in the extension of the first compartment 5 in the second air circulation chamber 10.
  • first and second air circulation chambers 9, 10 it is advantageous for the first and second air circulation chambers 9, 10 to be made in one piece as shown in particular in FIG. figure 1 thus making it possible to limit the number of parts of the device and reduce the need for air to escape from the device through uncontrolled passages.
  • the first air circulation chamber 9 and the second air circulation chamber 10 are preferably shaped to cooperate with the sealing means.
  • the air circulation chambers and the sealing means, the first and second compartments 5, 6 are tubular.
  • the part constituting the first and second air circulation chamber 9, 10 is a tube open at its two ends for introducing the first, second, third closure means, ie the first and second compartments 5.6.
  • the first and second compartments 5, 6 are open tubes at one of their ends intended to be opposite one another and closed at their other ends by which the rotation shafts 7, 8 are fixed to said compartments 5 6. The air entering through the air inlet opening 1 can then only emerge through the primary 2 and secondary 3 openings.
  • the closure means may be provided with abutment elements.
  • the first compartment 5 comprises a finger 16 extending radially and abutting against the section of the air inlet opening 1.
  • the air inlet opening 1 includes projections 18a, 18b allowing the abutment 16 to be inserted to allow the first opening 11 to correspond exactly to the air inlet opening 1.
  • the second compartment 6 can include a finger 17 intended to abut against the section of the second opening 3 as shown in the figures or the section of the primary opening 2 (not shown).
  • the secondary opening 3 comprises projections 19a, 19b allowing the stop 17 to be inserted therein to allow the second and third openings 12, 13 to correspond exactly to the primary opening 2 and secondary opening 3.
  • the second compartment 6 comprises two primary openings 2 and two secondary openings 3.
  • Each of the primary openings 2 and secondary 3 allow to feed at least one duct of the primary air circuit 23 or at least one duct of the secondary air circuit 24.
  • variation means and the distribution means are disposed in a housing 14 of substantially common shape of the rectangular or circular type for adapting the device according to the invention to different types of stoves 26 existing as shown in FIG. figure 8 .
  • the device according to the invention is positioned with its casing 14 in the lower position of the stove 26, that is to say preferentially under the combustion chamber 21.
  • the casing 14 is for example configured as shown in FIG. figure 1 , that is to say comprising three distinct parts, the first part 4 of which allows fresh air to enter the fresh air duct 15 and insert it through the air inlet opening 1 if it is open.
  • a second portion 30 allowing the air from the primary opening 2 to be conveyed to the combustion chamber 21 by conduits of the primary circuit 23.
  • a third portion 31 allowing the air coming from the secondary opening 3 to be conveyed towards the upper part of the combustion chamber 21 by ducts of the air circuit 24.
  • the stove 26 represented in figure 8 comprises a secondary air circuit 24 provided with at least one duct extending from the device according to the invention to the top of the combustion chamber 21.
  • a secondary air circuit 24 provided with at least one duct extending from the device according to the invention to the top of the combustion chamber 21.
  • the secondary air circulates in the secondary circuit 24, it is heated in contact with the combustion chamber 21 and thus arrives at the combustion chamber 21 at a higher temperature than that of the primary air which contributes to improving the combustion of the fuel located in the combustion chamber 21
  • This secondary air inlet in the upper part of the combustion chamber 21 also serves to maintain an air curtain along the glass door 22 preventing soot particles from settling therein thus maintaining a certain cleanliness.
  • the user places fuel in the combustion chamber 21, for example logs of wood or granules, etc. It initiates the combustion of the fuel by means of a fire, then closes the glass door 22. It opens the air inlet opening 1 advantageously to its maximum so that the air flow entering the stove 26 is at 100% of its capacity. It also opens the primary opening 2 advantageously to its maximum, so that the secondary opening 3 is closed. That is to say that the entire flow of air entering through the air inlet opening 1 will exit the device through the primary opening 2 and be conveyed to the combustion chamber 21 by the circuit This primary primary air inlet allows the fuel to be dried and generates good combustion.
  • the user modifies the distribution of the combustion air between the air circuit 23 and the air circuit 24.
  • distribution means to reduce the primary opening 2 which leads to increase the secondary opening 3.
  • the user thus sets the proportion of primary air and secondary air preferably around 25% of the air flow out of the primary opening 2 and 75% of the outflow through the secondary opening 3. This phase eliminates suspended hydrocarbons and thus avoid any risk of clogging of the glass door 22.
  • the user then controls the distribution means so that the air flow from the primary opening 2 and the flow rate from the secondary opening 3 are substantially equivalent, ie about 50% each.
  • the user can also manipulate the means of variation of the air flow entering the stove 26 so as to improve the draft of the stove 26 and thus combustion.
  • the user distributes the combustion air between about 50% for the primary air circuit 23 and 50% for the secondary air circuit 24, he can then at this stage completely or almost completely close the opening of the air inlet 1 so as to obtain embers, that is to say a flameless combustion allowing the development of heat radiation of the stove 26.
  • control actions of the variation means and the distribution means by the user can be achieved by direct actions thereof on the control buttons 28, 29 or automatically via one of a remote control means or an autonomous management means.
  • the device according to the invention comprises an actuating motor 20 which allows to actuate in particular the means of variation.
  • the actuating motor 20 is connected by way of example to the first rotation shaft 7 of the variation means.
  • the actuating motor 20 is disposed in the first portion 4 of the casing 14 in which the flow of fresh air is at its maximum. This arrangement is very advantageous since it makes it possible to prevent heating of the motor 20 always subjected to fresh air coming from the fresh air duct 15.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Solid-Fuel Combustion (AREA)

Description

La présente invention concerne un dispositif d'alimentation en air d'un poêle, le poêle muni dudit dispositif et son procédé d'utilisation.
La présente invention trouvera son application dans tout types de poêle et plus généralement d'installations de chauffages utilisant des combustibles tels que du bois, des granulés, du charbon etc.The present invention relates to a device for supplying air to a stove, the stove provided with said device and its method of use.
The present invention will find its application in all types of stove and more generally heating systems using fuels such as wood, granules, coal etc.

Les poêles ou les cheminées sont des installations de chauffage comprenant une chambre de combustion fermée par une porte munie généralement d'une vitre pour permettre de visualiser l'intérieur de la chambre de combustion sans nécessité d'ouvrir la porte.Stoves or chimneys are heating systems comprising a combustion chamber closed by a door generally provided with a window to allow visualization of the interior of the combustion chamber without the need to open the door.

Dans les poêles il est classique de trouver au moins deux arrivées d'air dans la chambre de combustion, une issue d'un circuit d'air dit primaire et l'autre d'un circuit d'air dit secondaire.In stoves it is conventional to find at least two air inlets in the combustion chamber, an outlet of a so-called primary air circuit and the other of a so-called secondary air circuit.

Le circuit d'air primaire aussi appelé circuit d'air d'allumage ou encore circuit d'air de combustion débouche dans la chambre de combustion sous le combustible. Il permet un allumage rapide en amenant directement l'air au plus près du site de la combustion. Cependant, une fois la combustion entamée, une quantité d'air trop importante au niveau du combustible entraîne une trop rapide combustion de celui-ci. Le rendement énergétique est alors faible. C'est pourquoi après l'allumage, il est préférable de réduire la quantité d'air primaire arrivant dans la chambre de combustion. Toutefois, cette réduction de la quantité d'air dans la chambre de combustion entraîne une combustion imparfaite générant des particules non brûlées qui viennent encrasser la chambre de combustion, les conduits d'évacuation des fumées ainsi que la vitre du poêle.The primary air circuit also called ignition air circuit or combustion air circuit opens into the combustion chamber under the fuel. It allows a quick ignition by bringing the air directly closer to the site of combustion. However, once the combustion started, too much air in the fuel causes too rapid combustion of it. The energy efficiency is then low. Therefore, after ignition, it is best to reduce the amount of primary air entering the combustion chamber. However, this reduction in the amount of air in the combustion chamber leads to imperfect combustion generating unburned particles that clog the combustion chamber, the flue gas ducts and the glass stove.

Ainsi, il est souhaitable de remplacer au moins en partie la quantité d'air arrivant par le circuit d'air primaire réduite par de l'air arrivant dans la chambre de combustion par le circuit d'air secondaire. Ce circuit d'air secondaire appelé aussi circuit d'air de désenfumage ou circuit d'air de post-combustion débouche en partie haute de la chambre de combustion.Thus, it is desirable to replace at least in part the amount of air arriving through the reduced primary air circuit by air entering the combustion chamber by the secondary air circuit. This secondary air circuit also called smoke air circuit or post-combustion air circuit opens in the upper part of the combustion chamber.

La quantité d'air parvenant dans la chambre de combustion et issue du circuit d'air primaire ainsi que celle issue du circuit d'air secondaire doivent donc être modifiées au cours de la combustion. Or, il n'est pas possible de prédéterminer lors de la conception d'un poêle le rapport air secondaire / air primaire optimal pour chaque instant de la combustion. Ce rapport dépend en effet de plusieurs paramètres indépendants du poêle lui-même : humidité du bois, température, humidité et configuration de l'environnement du poêle etc. A cet effet, les poêles conventionnels comprennent donc des moyens de commande du circuit d'air primaire, du circuit d'air secondaire. Dans ces poêles, l'utilisateur doit manipuler chaque commande indépendamment l'une de l'autre. Cette manipulation est délicate et il est souvent difficile pour l'utilisateur de régler finement le rapport entre air primaire et air secondaire.The amount of air entering the combustion chamber and resulting from the primary air circuit and that from the secondary air circuit must therefore be modified during combustion. However, it is not possible to predetermine during the design of a stove the secondary air / primary air ratio optimal for each moment of combustion. This ratio depends on several parameters independent of the stove itself: wood moisture, temperature, humidity and configuration of the stove environment etc. For this purpose, the conventional stoves therefore comprise means for controlling the primary air circuit, the air circuit secondary. In these stoves, the user must manipulate each control independently of one another. This manipulation is delicate and it is often difficult for the user to finely adjust the ratio between primary air and secondary air.

De plus, l'utilisateur doit aussi régler par une autre commande le débit d'air général entrant dans le poêle et distribué au circuit d'air primaire et secondaire. Ce débit d'air général conditionne la puissance délivrée par le poêle.In addition, the user must also adjust by another command the general air flow entering the stove and distributed to the primary and secondary air circuit. This general air flow conditions the power delivered by the stove.

L'utilisateur doit actionner chacune des commandes les unes après les autres parfois même à plusieurs reprises pour obtenir un réglage satisfaisant. Cette multiplicité de commande rend l'utilisation de ces poêles complexe pour obtenir un rendement satisfaisant. Il en découle, qu'en pratique, le rendement des poêles conventionnels est loin d'être optimal.The user must operate each of the commands one after the other sometimes even several times to obtain a satisfactory setting. This multiplicity of control makes the use of these stoves complex to obtain a satisfactory performance. As a result, in practice, the performance of conventional stoves is far from optimal.

On connaît des dispositifs pour simplifier ces réglages notamment un dispositif comprenant un système de levier basculant au moyen d'une came actionnée par l'utilisateur pour faire varier la proportion d'air primaire et d'air secondaire dans le poêle par une seule commande. Néanmoins, ce dispositif est très peu sensible, de ce fait l'utilisateur ne peut régler avec précision ces proportions. De plus, le système de levier associé à une came est particulièrement complexe et présente une très faible durée de vie dans un environnement où la suie notamment encrasse très rapidement le dispositif. Les documents DE3833263 , EP1832813 , WO2010/029567 et AT505769 dévoilent différents dispositifs de commande d'alimentation en air pertinents par rapport à la présente invention.
Par conséquent, il existe donc le besoin de proposer un dispositif de commande de l'alimentation en air d'un poêle amélioré permettant un réglage aisé de l'alimentation en air tout en présentant une structure résistante.Devices are known to simplify these adjustments, in particular a device comprising a tilting lever system by means of a cam actuated by the user to vary the proportion of primary air and secondary air in the stove by a single command. Nevertheless, this device is very insensitive, therefore the user can not adjust precisely these proportions. In addition, the lever system associated with a cam is particularly complex and has a very short life in an environment where the soot in particular clogs the device very quickly. The documents DE3833263 , EP1832813 , WO2010 / 029567 and AT505769 disclose different air supply control devices relevant to the present invention.
Therefore, there is therefore the need to provide an improved stove air control device for easy adjustment of the air supply while having a strong structure.

A cet effet, la présente invention concerne un dispositif de commande de l'alimentation en air d'un poêle comprenant des moyens de variation du débit d'air entrant dans le poêle et des moyens de répartition de l'air comburant entre un circuit d'air primaire et un circuit d'air secondaire du poêle.For this purpose, the present invention relates to a device for controlling the supply of air to a stove comprising means for varying the flow rate of air entering the stove and means for distributing the combustion air between a heating circuit. primary air and a secondary air circuit of the stove.

Les moyens de variation comprennent au moins une ouverture d'entrée d'air et des premiers moyens d'obturation de ladite ouverture. L'ouverture d'entrée d'air et les premiers moyens d'obturation sont montés mobiles, de préférence en rotation, l'un par rapport à l'autre Selon la position relative des moyens d'obturation et de l'ouverture d'entrée d'air, celle-ci sera plus ou moins ouverte. La position relative entre l'ouverture d'entrée d'air et les premiers moyens d'obturation définissant une section de passage pour l'air frais.The variation means comprise at least one air inlet opening and first closure means of said opening. The air inlet opening and the first closure means are movably mounted, preferably in rotation, with respect to each other. According to the relative position of the closure means and the opening of the air inlet, it will be more or less open. The relative position between the air inlet opening and the first shutter means defining a passage section for fresh air.

Le contrôle de la quantité d'air entrant dans le poêle est donc très précis tout en étant simple d'utilisation.The control of the amount of air entering the stove is very precise while being easy to use.

Les moyens de répartition comprennent une ouverture d'air primaire reliée au circuit d'air primaire et des deuxièmes moyens d'obturation de ladite ouverture primaire, une ouverture secondaire reliée au circuit d'air secondaire et des troisièmes moyens d'obturation de ladite ouverture secondaire.The distribution means comprise a primary air opening connected to the primary air circuit and second means for closing said primary opening, a secondary opening connected to the secondary air circuit and third means for closing said opening. secondary.

La position relative entre l'ouverture primaire et les deuxièmes moyens d'obturation définissant une section de passage pour l'air primaire. De même, la position relative entre l'ouverture secondaire et les troisièmes moyens d'obturation définissant une section de passage pour l'air secondaire.The relative position between the primary opening and the second closure means defining a passage section for the primary air. Similarly, the relative position between the secondary opening and the third closure means defining a passage section for the secondary air.

Les ouvertures primaire et secondaire et les deuxièmes et troisièmes moyens d'obturation sont montés mobiles, de préférence en rotation, de sorte que la somme des sections de passage de l'air primaire et de l'air secondaire soit constante.The primary and secondary openings and the second and third closure means are movably mounted, preferably in rotation, so that the sum of the passage sections of the primary air and the secondary air is constant.

Il est avantageux de prévoir que la somme des sections de passage de l'air primaire et de l'air secondaire soit constante pour permettre un réglage facilité pour l'utilisateur sans risquer d'éteindre le feu.It is advantageous to provide that the sum of the passage sections of the primary air and the secondary air is constant to allow adjustment facilitated for the user without the risk of extinguishing the fire.

Les deuxièmes et troisièmes moyens d'obturation sont configurés pour être actionnés simultanément c'est-à-dire que l'utilisateur n'aura à agir que sur une commande pour contrôler à la fois les deuxièmes et les troisièmes moyens d'obturation. Les moyens de répartition de l'air comburant entre le circuit primaire et le circuit secondaire sont actionnables simplement par une commande.The second and third shutter means are configured to be operated simultaneously, that is to say that the user will only have to act on a control to control both the second and the third shutter means. The means for distributing the combustion air between the primary circuit and the secondary circuit can be actuated simply by a control.

Le dispositif selon l'invention simplifie l'utilisation et procure une grande fiabilité dans le réglage du débit d'air entrant ainsi que dans la répartition de l'air comburant entre le circuit d'air primaire et le circuit d'air secondaire.The device according to the invention simplifies the use and provides high reliability in the adjustment of the incoming air flow and in the distribution of combustion air between the primary air circuit and the secondary air circuit.

La conception du dispositif est particulièrement simple. Elle permet de limiter les risques d'encrassement ou de grippage du dispositif contribuant à une plus grande sécurité d'utilisation du poêle.The design of the device is particularly simple. It makes it possible to limit the risks of fouling or seizure of the device contributing to a greater safety of use of the stove.

En outre, le dispositif selon l'invention présente un encombrement limité et peut être intégré aisément dans des types de poêles.In addition, the device according to the invention has a limited size and can be easily integrated in types of stoves.

D'autres buts et avantages apparaîtront au cours de la description qui suit d'un mode préféré de réalisation de l'invention qui n'en est cependant pas limitatif.Other objects and advantages will become apparent from the following description of a preferred embodiment of the invention which is not however limiting.

Il convient tout d'abord de rappeler que la présente invention concerne un dispositif de commande de l'alimentation en air d'un poêle comprenant des moyens de variation du débit d'air comburant destiné à entrer dans le poêle et des moyens de répartition entre un circuit d'air primaire et un circuit d'air secondaire de l'air comburant caractérisé en ce que

  • les moyens de variation du débit d'air comburant comportent au moins une ouverture d'entrée d'air et des premiers moyens d'obturation de l'ouverture d'entrée d'air montés mobiles l'un par rapport à l'autre de sorte à faire varier la section de passage de l'air comburant à travers l'ouverture d'entrée d'air et en ce que
  • les moyens de répartition comportent au moins une ouverture primaire et au moins une ouverture secondaire destinées à être reliées respectivement au circuit d'air primaire et au circuit d'air secondaire ainsi que des deuxièmes et troisièmes moyens d'obturation agencés mobiles par rapport aux ouvertures primaire et secondaire de sorte à faire varier la section de passage de l'air comburant à travers respectivement les ouvertures primaire et secondaire, les deuxièmes et troisièmes moyens d'obturation et respectivement les ouvertures primaire et secondaire étant solidaires selon cette mobilité de manière à ce que la somme des sections passage de l'air comburant à travers l'ouverture primaire et l'ouverture secondaire demeure constante quelle que soit la position relative des deuxièmes et troisièmes moyens d'obturation par rapport aux ouvertures primaire et secondaire.
It should first be recalled that the present invention relates to a device for controlling the supply of air to a stove comprising means for varying the flow of combustion air intended to enter the stove and means of distribution between a primary air circuit and a secondary air circuit of the combustion air characterized in that
  • the means for varying the combustion air flow rate comprise at least one air inlet opening and the first inlet opening sealing means mounted movably relative to each other so as to vary the cross-section of the combustion air through the air inlet opening and in that
  • the distribution means comprise at least one primary opening and at least one secondary opening intended to be connected respectively to the primary air circuit and the secondary air circuit as well as second and third closure means arranged movable relative to the openings; primary and secondary so as to vary the passage cross section of the combustion air through respectively the primary and secondary openings, the second and third closure means and respectively the primary and secondary openings being secured according to this mobility so that that the sum of the passage sections of the combustion air through the primary opening and the secondary opening remains constant regardless of the relative position of the second and third closure means relative to the primary and secondary openings.

Suivant des variantes préférées mais non limitatives de l'invention, le dispositif est tel que :

  • les premiers moyens d'obturation sont mobiles soit en rotation, soit en translation par rapport à l'ouverture d'entrée de l'air comburant.
  • les premiers moyens d'obturation forment un ensemble monobloc. L'organe sur lequel intervient l'utilisateur ou éventuellement un moteur pour effectuer un réglage de puissance est donc directement l'organe qui fait varier la section de passage de l'ouverture d'entrée. La cinématique de réglage de la puissance est donc particulièrement simple et robuste. En outre elle est simple à mettre en oeuvre et à installer dans les poêles conventionnels.
  • de même, les deuxièmes et troisièmes moyens d'obturation forment un ensemble monobloc. Les ouvertures primaire et secondaire forment également un ensemble monobloc. L'organe sur lequel intervient l'utilisateur ou éventuellement un moteur pour effectuer un réglage du ratio est donc directement l'organe qui fait varier la section de passage de ouvertures primaire et secondaire. La cinématique de réglage du ratio air primaire / air secondaire est donc particulièrement précise et robuste. En outre elle est simple à mettre en oeuvre et à installer dans les poêles conventionnels.
  • les premiers moyens d'obturation comprennent un premier compartiment muni d'au moins une paroi dans laquelle est pratiquée au moins une première ouverture apte à être positionnée au regard de l'ouverture d'entrée d'air de sorte que lorsque la première ouverture et l'ouverture d'entrée d'air sont positionnés en regard la section de passage de l'air à travers l'ouverture d'entrée d'air est maximale et que lorsque la première ouverture masque du moins partiellement l'ouverture d'entrée d'air cette section est réduite.
  • les deuxièmes et troisièmes moyens d'obturation comprennent un deuxième compartiment muni d'au moins une deuxième et une troisième ouvertures aptes à être respectivement positionnées au regard des ouvertures primaire et secondaire de sorte à masquer au moins partiellement ces ouvertures ou à les laisser complètement libres.
  • les premier et deuxième compartiments sont disposés dans le prolongement l'un de l'autre.
  • les deuxième et troisième ouvertures sont décalées angulairement l'une de l'autre.
  • l'un parmi les premiers moyens d'obturation et l'ouverture d'entrée comprennent un premier arbre destiné à être entraîné par une de ses extrémités par l'utilisateur ou par un moteur afin d'assurer la mobilité nécessaire à la variation de section de passage de l'air comburant à travers l'ouverture d'entrée.
  • l'arbre est un arbre de rotation destiné à être entraîné en rotation pour assurer l'obturation de l'ouverture d'entrée par les premiers moyens d'obturation. Dans le mode de réalisation dans lequel la mobilité entre les premiers moyens d'obturation et l'ouverture d'entrée est une mobilité en translation, le premier arbre coulisse en translation.
  • le premier arbre s'étend longitudinalement au travers des premier et deuxième compartiments.
  • les deuxièmes et troisièmes moyens d'obturation sont mobiles en rotation par rapport aux ouvertures primaire et secondaire. Dans un mode de réalisation alternatif, les deuxièmes et troisièmes moyens d'obturation sont mobiles en translation par rapport aux ouvertures primaire et secondaire.
  • les deuxièmes et troisièmes moyens d'obturation comprennent un deuxième arbre destiné à être entraîné par une de ses extrémités par l'utilisateur ou par un moteur.
  • avantageusement, le deuxième arbre est monté en rotation. L'utilisateur n'a donc qu'à tourner cet axe pour régler le ratio entre l'air primaire et l'air secondaire. Dans le mode de réalisation dans lequel les deuxièmes et troisièmes moyens d'obturation sont mobiles en translation par rapport aux ouvertures primaire et secondaire, le second arbre coulisse en translation. L'axe doit donc être poussé ou tiré pour régler le ratio.
  • les premier et deuxième arbres de rotation sont co-axiaux.
  • le premier arbre est logé à l'intérieur du deuxième arbre.
  • les premiers moyens d'obturation sont mobiles relativement à l'ouverture d'entrée d'air qui est fixe.
  • l'ouverture d'entrée d'air est formée sur une première chambre de circulation de l'air et les ouvertures primaire et secondaire sont formées sur une deuxième chambre de circulation de l'air.
  • le premier compartiment, deuxième compartiment, la première et la deuxième chambres présentent des formes tubulaires.
  • le premier compartiment est logé à l'intérieur de la première chambre dans laquelle est pratiqué l'ouverture d'entrée d'air
  • le deuxième compartiment est logé à l'intérieur de la seconde chambre dans laquelle sont pratiquées les ouvertures primaires et secondaires.
  • les premiers moyens d'obturation sont agencés de manière concentrique dans la première chambre de circulation de l'air
  • la face de la première chambre et celle du premier compartiment qui sont destinées à être disposées mutuellement en regard présentent des sections complémentaires.
  • la face de la deuxième chambre et celle du deuxième compartiment qui sont destinées à venir mutuellement en regard présentent des sections complémentaires. Si la mobilité relative est une rotation on privilégiera des sections sensiblement circulaires. Si la mobilité relative est une translation on privilégiera des sections sensiblement circulaires ou polygonales.
  • les deuxièmes et troisièmes moyens d'obturation sont mobiles relativement aux ouvertures primaire et secondaire qui sont fixes.
  • les ouvertures d'entrée, primaire et secondaire sont portées par des tubes coaxiaux. Avantageusement, les ouvertures d'entrée, primaire et secondaire sont pratiquées dans un même tube. Elles sont distantes les unes des autres selon la direction longitudinale du tube. Les moyens d'obturation sont logés à l'intérieur du tube. Ils sont montés en rotation selon un axe coaxial au tube. Un premier tube intérieur porte les deuxième et troisième moyens d'obturation. Un deuxième tube intérieur porte les premiers moyens d'obturation.
  • les deuxièmes et troisièmes moyens d'obturation sont agencés de manière coaxiale et successive dans la deuxième chambre de circulation de l'air.
According to preferred but non-limiting variants of the invention, the device is such that:
  • the first sealing means are movable either in rotation or in translation relative to the inlet opening of the combustion air.
  • the first sealing means form a one-piece assembly. The member on which the user intervenes or possibly a motor to perform a power adjustment is therefore directly the member that varies the passage section of the inlet opening. The kinematics of power control is therefore particularly simple and robust. In addition it is simple to implement and install in conventional stoves.
  • likewise, the second and third closure means form a one-piece assembly. The primary and secondary openings also form a one-piece assembly. The member on which the user intervenes or possibly a motor to perform a ratio adjustment is therefore directly the member that varies the primary and secondary openings passage section. The kinematic adjustment of the primary air / secondary air ratio is therefore particularly precise and robust. In addition it is simple to implement and install in conventional stoves.
  • the first sealing means comprise a first compartment provided with at least one wall in which is formed at least a first opening adapted to be positioned with respect to the air inlet opening so that when the first opening and the air inlet opening are positioned opposite the air passage section through the air inlet opening is maximum and that when the first opening at least partially mask the air inlet opening this section is reduced.
  • the second and third closure means comprise a second compartment provided with at least one second and one third openings able to be respectively positioned with respect to the primary and secondary openings so as to mask these openings at least partially or to leave them completely free .
  • the first and second compartments are arranged in the extension of one another.
  • the second and third openings are angularly offset from one another.
  • one of the first sealing means and the inlet opening comprise a first shaft intended to be driven by one of its ends by the user or by a motor to provide the mobility necessary for the variation of section of the combustion air passing through the inlet opening.
  • the shaft is a rotation shaft intended to be rotated to ensure the closure of the inlet opening by the first sealing means. In the embodiment in which the mobility between the first shutter means and the inlet opening is a mobility in translation, the first shaft slides in translation.
  • the first shaft extends longitudinally through the first and second compartments.
  • the second and third sealing means are rotatable relative to the primary and secondary openings. In an alternative embodiment, the second and third closure means are movable in translation relative to the primary and secondary openings.
  • the second and third sealing means comprise a second shaft intended to be driven by one of its ends by the user or by a motor.
  • advantageously, the second shaft is rotatably mounted. The user only has to turn this axis to adjust the ratio between the primary air and the secondary air. In the embodiment in which the second and third closure means are movable in translation relative to the primary and secondary openings, the second shaft slides in translation. The axis must be pushed or pulled to adjust the ratio.
  • the first and second rotation shafts are coaxial.
  • the first tree is housed inside the second tree.
  • the first sealing means are movable relative to the air inlet opening which is fixed.
  • the air inlet opening is formed on a first air flow chamber and the primary and secondary openings are formed on a second air flow chamber.
  • the first compartment, the second compartment, the first and second chambers have tubular shapes.
  • the first compartment is housed inside the first chamber in which is practiced the air inlet opening
  • the second compartment is housed inside the second chamber in which are formed the primary and secondary openings.
  • the first sealing means are arranged concentrically in the first air circulation chamber
  • the face of the first chamber and that of the first compartment which are intended to be disposed mutually opposite have complementary sections.
  • the face of the second chamber and that of the second compartment which are intended to come mutually opposite have complementary sections. If the relative mobility is a rotation one will favor substantially circular sections. If the relative mobility is a translation one will favor substantially circular or polygonal sections.
  • the second and third sealing means are movable relative to the primary and secondary openings which are fixed.
  • the inlet, primary and secondary openings are carried by coaxial tubes. Advantageously, the inlet, primary and secondary openings are made in the same tube. They are distant from each other in the longitudinal direction of the tube. The sealing means are housed inside the tube. They are mounted in rotation along an axis coaxial with the tube. A first inner tube carries the second and third sealing means. A second inner tube carries the first sealing means.
  • the second and third sealing means are arranged coaxially and successively in the second air circulation chamber.

L'invention concerne également un poêle comprenant une chambre de combustion, un circuit d'air primaire et un circuit d'air secondaire débouchant dans la chambre de combustion comprenant un dispositif de commande de l'alimentation en air du poêle selon l'une quelconque des caractéristiques précédentes.The invention also relates to a stove comprising a combustion chamber, a primary air circuit and a secondary air circuit opening into the combustion chamber comprising a device for controlling the air supply of the stove according to any one previous characteristics.

Enfin, la présente invention concerne un procédé d'utilisation d'un poêle comprenant les phases suivantes :

  • allumage du combustible lors duquel l'ouverture d'entrée d'air est entièrement ouverte, l'ouverture primaire est majoritairement ouverte relativement à l'ouverture secondaire qui est majoritairement fermée;
  • combustion du combustible lors duquel l'ouverture primaire est majoritairement fermée relativement à l'ouverture secondaire qui est majoritairement ouverte.
Finally, the present invention relates to a method of using a stove comprising the following phases:
  • ignition of the fuel in which the air inlet opening is fully open, the primary opening is mainly open relative to the secondary opening which is mostly closed;
  • fuel combustion in which the primary opening is mostly closed relative to the secondary opening which is mostly open.

Les dessins ci-joints sont donnés à titre d'exemples et ne sont pas limitatifs de l'invention. Ils représentent seulement un mode de réalisation de l'invention et permettront de la comprendre aisément.

  • La figure 1 représente une vue éclatée du dispositif de commande de l'alimentation en air du poêle selon l'invention.
  • La figure 2 en donne une vue en coupe transversale.
  • La figure 3 représente une vue en perspective du dispositif selon la figure 1 comprenant un moteur d'actionnement.
  • La figure 4 donne une vue du dessus du dispositif selon la figure 3.
  • Les figures 5 à 7 représentent le dispositif selon la figure 1 sans le carter dans différentes étapes de son utilisation.
  • La figure 8 illustre l'intégration d'un dispositif selon l'invention dans un poêle.
The accompanying drawings are given by way of example and are not limiting of the invention. They represent only one embodiment of the invention and will make it easy to understand.
  • The figure 1 represents an exploded view of the control device of the air supply of the stove according to the invention.
  • The figure 2 gives a cross sectional view.
  • The figure 3 represents a perspective view of the device according to the figure 1 comprising an actuating motor.
  • The figure 4 gives a top view of the device according to the figure 3 .
  • The Figures 5 to 7 represent the device according to the figure 1 without the crankcase in different stages of its use.
  • The figure 8 illustrates the integration of a device according to the invention in a stove.

Il est essentiel pour faire fonctionner un poêle dans les meilleures conditions et obtenir un rendement énergétique maximal de contrôler au mieux la combustion du combustible. Il faut donc régler au plus juste la quantité d'air entrant dans le poêle influençant directement l'intensité de la combustion et les zones d'arrivée de l'air dans la chambre de combustion 21 influençant directement la qualité de la combustion.It is essential to operate a stove in the best conditions and achieve maximum energy efficiency to best control the combustion of fuel. It is therefore necessary to adjust as accurately as the amount of air entering the stove directly influencing the intensity of combustion and the air intake zones in the combustion chamber 21 directly influencing the quality of combustion.

Ces réglages ne peuvent être fixes car ils dépendent de nombreux paramètres tels que le type de combustible, l'humidité du combustible, de l'environnement, la température souhaitée, la puissance du vent...These settings can not be fixed because they depend on many parameters such as the type of fuel, the fuel humidity, the environment, the desired temperature, the power of the wind ...

Le dispositif de commande d'alimentation en air d'un poêle selon l'invention comprend des moyens de variation du débit d'air entrant dans le poêle et des moyens de répartition de l'air comburant entre un circuit d'air primaire et un circuit d'air secondaire.The device for controlling the supply of air to a stove according to the invention comprises means for varying the air flow rate entering the stove and means for distributing the combustion air between a primary air circuit and a combustion chamber. secondary air circuit.

On entend par air entrant dans le poêle, l'air en provenance de l'extérieur arrivant par un conduit d'arrivée d'air frais 15. Cet air entrant est ensuite dénommé air comburant lorsqu'il est acheminé en direction de la chambre de combustion 21 du poêle 26.Air entering the stove means the air coming from the outside arriving through a fresh air intake duct 15. This incoming air is then called combustion air when it is conveyed towards the room of combustion 21 of the stove 26.

Cet air comburant est classiquement réparti entre un circuit d'air primaire 23 et un circuit d'air secondaire 24. Le circuit d'air primaire 23 achemine l'air comburant dans la chambre de combustion 21 au niveau du combustible plus précisément en dessous de ce dernier. Le circuit d'air secondaire 24 achemine l'air comburant dans la partie haute de la chambre de combustion 21.This combustion air is conventionally distributed between a primary air circuit 23 and a secondary air circuit 24. The primary air circuit 23 conveys the combustion air into the combustion chamber 21 at the level of the fuel, more precisely below this last. The secondary air circuit 24 conveys the combustion air into the upper part of the combustion chamber 21.

Les moyens de variation du débit d'air entrant dans le poêle 26 comprennent une ouverture d'entrée d'air 1 et des moyens d'obturation avantageusement mobiles l'un par rapport à l'autre. En fonction du positionnement des premiers moyens d'obturation relativement à l'ouverture d'entrée d'air 1, la section de l'ouverture d'entrée d'air 1 sera plus ou moins grande permettant ainsi de faire varier le débit de l'air entrant dans le poêle 26. Avantageusement les moyens d'obturation et l'ouverture d'entrée d'air 1 présentent une mobilité en rotation. On peut également prévoir une mobilité en translation.The means of variation of the air flow entering the stove 26 comprise an air inlet opening 1 and closure means advantageously movable relative to each other. Depending on the positioning of the first closure means relative to the air inlet opening 1, the section of the air inlet opening 1 will be larger or smaller thus allowing the flow rate of the air to be varied. 26. Advantageously, the closure means and the air inlet opening 1 have a rotational mobility. One can also provide mobility in translation.

Le dispositif de commande de l'alimentation en air d'un poêle selon l'invention comprend également des moyens de répartition de l'air comburant entre un circuit d'air primaire et un circuit d'air secondaire. Les moyens de répartition de l'air comburant entre un circuit d'air primaire et un circuit d'air secondaire comprennent au moins une ouverture primaire 2 reliée à un circuit d'air primaire 23 et une ouverture secondaire 3 reliée au circuit d'air secondaire 24 ainsi que des deuxièmes et troisièmes moyens d'obturation.The device for controlling the supply of air to a stove according to the invention also comprises means for distributing the combustion air between a primary air circuit and a secondary air circuit. The means for distributing the combustion air between a primary air circuit and a secondary air circuit comprise at least one primary opening 2 connected to a primary air circuit 23 and a secondary opening 3 connected to the air circuit. secondary 24 as well as second and third sealing means.

Les deuxièmes moyens d'obturation sont destinés à obturer l'ouverture primaire 2 et les troisièmes moyens d'obturation sont destinés à obturer l'ouverture secondaire 3.The second closure means are intended to close the primary opening 2 and the third closure means are intended to close the secondary opening 3.

Les deuxièmes et troisièmes moyens d'obturation sont configurés pour être actionnés simultanément. C'est-à-dire que l'utilisateur n'aura à n'effectuer qu'une seule action pour agir simultanément sur les deuxièmes et troisièmes moyens d'obturation.The second and third shutter means are configured to be operated simultaneously. That is to say that the user will have to perform only one action to act simultaneously on the second and third shutter means.

Comme pour les moyens de variation du débit d'air, les deuxièmes et troisièmes moyens d'obturation et respectivement les ouvertures primaire 2 et secondaire 3 sont agencées mobiles en rotation l'un par rapport à l'autre de sorte que la somme des débits de l'ouverture primaire et de l'ouverture secondaire soit constante. Avec le dispositif selon l'invention, la section de l'ouverture primaires 2 et de l'ouverture secondaire 3 est respectivement contrôlée par les deuxièmes et troisièmes moyens d'obturation. Les deuxièmes et troisièmes moyens d'obturation étant configurés pour être actionnés simultanément, il est alors très simple pour l'utilisateur de contrôler la répartition de l'air comburant entre le circuit d'air primaire 23 et circuit d'air secondaire 24.As for the means for varying the air flow rate, the second and third closure means and the primary and secondary openings 2 respectively are arranged rotatable relative to each other so that the sum of the flow rates primary opening and secondary opening is constant. With the device according to the invention, the section of the primary opening 2 and the secondary opening 3 is respectively controlled by the second and third sealing means. The second and third closure means being configured to be actuated simultaneously, it is then very simple for the user to control the distribution of combustion air between the primary air circuit 23 and the secondary air circuit 24.

L'utilisateur ne manipule qu'une seule commande pour contrôler l'entrée d'air primaire et l'entrée d'air secondaire. Cette action simultanée sur les deuxièmes et troisièmes moyens d'obturation limite les variations brusques dans la répartition air primaire - air secondaire. Il n'y a aucun risque de fermer simultanément les deux ouvertures primaire 2 et secondaire 3 et de risquer d'éteindre le feu.The user manipulates only one command to control the primary air inlet and the secondary air inlet. This simultaneous action on the second and third sealing means limits the abrupt variations in the distribution primary air - secondary air. There is no risk of simultaneously closing the two primary 2 and secondary 3 openings and risk extinguishing the fire.

De plus, le demandeur s'est aperçu que lorsque la somme des débits de l'ouverture primaire 2 et de l'ouverture secondaire 3 était constante, il y avait une amélioration du rendement de chauffe avec un faible encrassage de la chambre de combustion.In addition, the applicant realized that when the sum of the flow rates of the primary opening 2 and the secondary opening 3 was constant, there was an improvement in the heating efficiency with a low fouling of the combustion chamber.

A titre préféré, ce sont les premiers moyens d'obturation qui sont mobiles relativement à l'ouverture d'entrée d'air 1. De même, ce sont les deuxièmes et troisièmes moyens d'obturation qui sont mobiles relativement aux ouvertures primaires 2 et secondaire 3.Preferably, it is the first closure means that are movable relative to the air inlet opening 1. Similarly, it is the second and third closure means that are movable relative to the primary openings 2 and secondary 3.

Selon un mode de réalisation, les premiers moyens d'obturation comprennent un premier compartiment 5 comportant au moins une première ouverture 11 apte à être positionnée au regard de l'ouverture d'entrée d'air 1. Le premier compartiment 5 peut être de forme variée, rectangulaire ou avantageusement tubulaire. La première ouverture 11 a avantageusement une surface au moins équivalente à celle de l'ouverture d'entrée d'air 1. Ainsi lorsque la première ouverture 11 sera positionnée au regard de l'ouverture d'entrée d'air 1, l'ouverture d'entrée d'air 1 sera ouverte à son maximum c'est-à-dire à 100% de sa section.According to one embodiment, the first closure means comprise a first compartment 5 having at least a first opening 11 adapted to be positioned with respect to the air inlet opening 1. The first compartment 5 may be of a shape varied, rectangular or preferably tubular. The first opening 11 advantageously has a surface at least equivalent to that of the air inlet opening 1. Thus, when the first opening 11 will be positioned with respect to the air inlet opening 1, the opening air inlet 1 will be open at its maximum ie to 100% of its section.

Selon l'invention, le premier compartiment 5 et l'ouverture d'entrée d'air 1 sont mobiles en rotation l'un par rapport à l'autre, préférentiellement c'est le premier compartiment 5 qui est mobile et l'ouverture d'entrée d'air 1 est fixe. Ainsi, la section de l'ouverture d'entrée d'air 1 est modifiable en fonction de la position relative du premier compartiment 5, notamment de la première ouverture 11 relativement à l'ouverture d'entrée d'air 1. Si la première ouverture 11 n'est pas positionnée exactement en regard de l'ouverture d'entrée d'air 1, alors la section de l'ouverture d'entrée d'air 1 sera réduite par rapport à son ouverture maximale de 100% comme cela est représenté en figure 6. Une partie de la section de l'ouverture d'entrée d'air 1 est obturée par le premier compartiment 5.According to the invention, the first compartment 5 and the air inlet opening 1 are movable in rotation with respect to each other, preferably it is the first compartment 5 which is movable and the opening of air inlet 1 is fixed. Thus, the section of the air inlet opening 1 is modifiable as a function of the relative position of the first compartment 5, in particular of the first opening 11 relative to the air inlet opening 1. If the first opening 11 is not positioned exactly opposite the air inlet opening 1, then the section of the air inlet opening 1 will be reduced with respect to its maximum opening of 100% as this is represented in figure 6 . Part of the section of the air inlet opening 1 is closed by the first compartment 5.

Selon un deuxième mode de réalisation alternatif, les premiers moyens d'obturation comprennent un clapet apte à être positionné au regard de l'ouverture d'entrée d'air 1 de sorte à l'obturer plus ou moins. De la même manière, il est préférable que ce soit le clapet qui soit mobile et que l'ouverture d'entrée d'air 1 soit fixe.According to a second alternative embodiment, the first closure means comprise a valve adapted to be positioned facing the air inlet opening 1 so as to close more or less. In the same way, it is preferable that it is the valve that is movable and that the air inlet opening 1 is fixed.

Les deuxièmes et troisièmes moyens d'obturation comprennent, selon un mode de réalisation, un deuxième compartiment 6. Le deuxième compartiment 6 est avantageusement muni d'au moins une deuxième ouverture 12 et une troisième ouverture 13 aptes à être respectivement positionnées au regard de l'ouverture primaire 2 et de l'ouverture secondaire 3. De la même manière que pour le premier compartiment 5, le deuxième compartiment 6 peut être de diverses formes et préférentiellement de forme tubulaire. Les deuxièmes et troisièmes moyens d'obturation sont ainsi actionnables simultanément puisqu'ils sont réunis dans un deuxième compartiment 6.The second and third closure means comprise, according to one embodiment, a second compartment 6. The second compartment 6 is advantageously provided with at least a second opening 12 and a third opening 13 able to be respectively positioned with respect to the primary opening 2 and the secondary opening 3. In the same way as for the first compartment 5, the second compartment 6 may be of various shapes and preferably of tubular form. The second and third sealing means can thus be actuated simultaneously since they are joined in a second compartment 6.

Selon un autre mode de réalisation, les deuxièmes et troisièmes moyens d'obturation comprennent chacun un clapet apte à être positionné au regard de l'ouverture primaire 2 et de l'ouverture secondaire 3 de sorte à les obturer plus ou moins. De la même manière, il est préférable que ce soit les clapets qui soient mobiles et que les ouvertures primaire 2 et secondaire 3 soient fixes.According to another embodiment, the second and third closure means each comprise a valve adapted to be positioned facing the primary opening 2 and the secondary opening 3 so as to close more or less. In the same way, it is preferable that the valves are movable and that the primary openings 2 and secondary 3 are fixed.

Les deuxième et troisième ouvertures 12, 13 ainsi que les ouvertures primaire 2 et secondaire 3 sont avantageusement configurées pour que la somme des débits de l'ouverture primaire 2 et de l'ouverture secondaire 3 soit constante. Ainsi, lorsque la section de l'ouverture primaire 2 est réduite, la section de l'ouverture secondaire 3 doit être augmentée pour que la somme des débits soit toujours constante. Pour cela, il est à titre d'exemple prévu que les deuxième et troisième ouverture 12, 13 soient décalées angulairement l'une de l'autre au niveau du deuxième compartiment 6 comme illustré en figure 1. Ainsi lorsque la deuxième ouverture 12 est au regard de l'ouverture primaire 2 comme représenté en figure 5 la troisième ouverture 13 n'est pas en regard de l'ouverture secondaire 3. L'ensemble du débit d'air comburant provient de l'ouverture primaire 2.The second and third openings 12, 13 and the primary openings 2 and secondary 3 are advantageously configured so that the sum of the flow rates of the primary opening 2 and the secondary opening 3 is constant. Thus, when the section of the primary opening 2 is reduced, the section of the secondary opening 3 must be increased so that the sum of the flow rates is always constant. For this, it is for example provided that the second and third openings 12, 13 are angularly offset from one another at the second compartment 6 as illustrated in FIG. figure 1 . Thus when the second opening 12 is facing the primary opening 2 as shown in FIG. figure 5 the third opening 13 is not facing the secondary opening 3. The entire flow of combustion air comes from the primary opening 2.

Inversement, comme représenté en figure 7, lorsque la troisième ouverture 13 est en regard de l'ouverture secondaire 3 alors la deuxième ouverture 12 n'est pas au regard de l'ouverture primaire 2 qui est complètement obturée. L'ensemble du débit de l'air comburant s'échappera alors par l'ouverture secondaire 3.Conversely, as represented in figure 7 when the third opening 13 is opposite the secondary opening 3 then the second opening 12 is not facing the primary opening 2 which is completely closed. The entire flow of combustion air will then escape through the secondary opening 3.

La figure 6 représente une position intermédiaire où la deuxième ouverture 12 est partiellement en regard de l'ouverture secondaire 2, alors la troisième ouverture 13 est également partiellement en regard de l'ouverture secondaire 3. La somme du débit d'air comburant s'échappant vers la chambre de combustion 21 est alors partagée entre l'ouverture primaire 2 et l'ouverture secondaire 3.The figure 6 represents an intermediate position where the second opening 12 is partially opposite the secondary opening 2, then the third opening 13 is also partially opposite the secondary opening 3. The sum of the combustion air flow escaping towards the combustion chamber 21 is then shared between the primary opening 2 and the secondary opening 3.

Sur l'ensemble des figures, les ouvertures primaire 2 et secondaire 3 sont alignées selon une direction longitudinale.In all the figures, the primary openings 2 and secondary 3 are aligned in a longitudinal direction.

Selon un mode de réalisation alternatif, les ouvertures primaire 2 et secondaire 3 peuvent être également décalées angulairement ou bien seules les ouvertures primaire 2 et secondaire 3 sont décalées angulairement alors que les deuxième et troisième ouvertures 12, 13 sont alignées selon une direction longitudinales des premiers et deuxièmes compartiments 5, 6.According to an alternative embodiment, the primary 2 and secondary 3 openings may also be angularly offset or only the primary 2 and secondary 3 openings are offset angularly while the second and third openings 12, 13 are aligned in a longitudinal direction of the first and second compartments 5, 6.

Pour améliorer la bonne circulation de l'air dans le dispositif, il est avantageux que le premier compartiment 5 et le deuxième compartiment 6 soient disposés dans le prolongement l'un de l'autre tel que représenté sur l'ensemble des figures. Une fois l'air introduit par l'ouverture d'entrée d'air 1, son déplacement est linéaire au travers du premier compartiment 5 puis du deuxième compartiment 6.To improve the good flow of air in the device, it is advantageous that the first compartment 5 and the second compartment 6 are arranged in the extension of one another as shown in all the figures. Once the air introduced by the air inlet opening 1, its movement is linear through the first compartment 5 and the second compartment 6.

Le premier compartiment 5 et le deuxième compartiment 6 sont joints avantageusement par une connexion étanche tout en restant libre en rotation l'un de l'autre. On peut par exemple prévoir des joints toriques.The first compartment 5 and the second compartment 6 are advantageously joined by a sealed connection while remaining free to rotate from one another. For example, O-rings may be provided.

Ce positionnement est tout particulièrement avantageux car les moyens de variation du débit d'air entrant dans le poêle 26 et les moyens de répartition de l'air comburant sont combinés et physiquement proche les uns des autres. Ainsi, lorsque les moyens de variation du débit d'air entrant ou les moyens de répartition sont manipulés, la réaction du poêle est immédiate car l'air circule dans le dispositif selon un parcours simple et direct.This positioning is particularly advantageous because the means for varying the air flow entering the stove 26 and the means of distribution of the combustion air are combined and physically close to each other. Thus, when the means of variation of the incoming air flow or the distribution means are manipulated, the reaction of the stove is immediate because the air circulates in the device in a simple and direct route.

De plus cette succession des moyens de variation du débit d'air et des moyens de répartition de manière longitudinale facile la fabrication, la manipulation et ensuite l'intégration du dispositif selon l'invention notamment dans des poêles existants.In addition, this succession of means for varying the flow of air and means of distribution longitudinally easy manufacturing, handling and then the integration of the device according to the invention in particular in existing stoves.

Selon un mode préféré de réalisation, la première ouverture 11 est disposée à la périphérie du premier compartiment 5 de la même manière les deuxième et troisième ouvertures 12, 13 sont disposées à la périphérie du compartiment 6. Selon un autre mode de réalisation la première ouverture d'air 11 est disposée sur la base du compartiment 5. La première ouverture d'air 11 est alors sensiblement perpendiculaire au deuxième et troisième ouvertures 12, 13.According to a preferred embodiment, the first opening 11 is disposed at the periphery of the first compartment 5 in the same way the second and third openings 12, 13 are disposed at the periphery of the compartment 6. According to another embodiment the first opening 11 is disposed on the base of the compartment 5. The first air opening 11 is then substantially perpendicular to the second and third openings 12, 13.

De sorte à être facilement manipulables, les premiers moyens d'obturation et les deuxièmes et troisièmes moyens d'obturation comprennent des arbres de rotation 7,8 actionnables par l'utilisateur au niveau de leurs extrémités libres situées sur la façade du poêle 26. Plus précisément, les premiers moyens d'obturation, c'est-à-dire le premier compartiment 5, comprennent un premier arbre de rotation 7 maintenu fixement par une de ses extrémités aux premiers moyens d'obturation, plus spécifiquement au compartiment 5. Les deuxièmes et troisièmes moyens d'obturation comprennent également un deuxième arbre de rotation 8 fixé aux deuxièmes et troisièmes moyens d'obturation, c'est-à-dire au deuxième compartiment, de sorte à ce qu'ils puissent être actionnés simultanément par l'utilisateur. Préférentiellement, les premier et deuxième arbre de rotation 7, 8 sont respectivement fixés au premier et deuxième compartiment 5,6 plus précisément au centres de leurs bases.In order to be easily manipulated, the first sealing means and the second and third sealing means comprise user-actuable rotation shafts 7,8 at their free ends located on the front of the stove 26. More specifically, the first closure means, that is to say the first compartment 5, comprises a first rotation shaft 7 fixedly fixed at one of its ends to the first closure means, more specifically to the compartment 5. The second and third shutter means also comprise a second rotating shaft 8 attached to the second and third shutter means, that is to say the second compartment, so that they can be operated simultaneously by the user. Preferably, the first and second rotation shaft 7, 8 are respectively fixed to the first and second compartments 5, 6 more precisely to the centers of their bases.

Les premier et deuxième arbres de rotation 7, 8 sont avantageusement coaxiaux. Pour cela, le premier arbre de rotation 7 s'étend à titre d'exemple au travers du premier compartiment 5 puis du deuxième compartiment 6 de sorte à ce que son extrémité libre actionnable par l'utilisateur ressorte à l'extérieur du poêle 26 et se termine avantageusement par un bouton de commande 28. Le deuxième arbre de rotation 8 s'étend lui à partir du deuxième compartiment 6 et vers l'extérieur du poêle 26 de sorte à ce que son extrémité libre soit accessible à l'utilisateur en dehors du poêle 26 et se termine avantageusement par un bouton de commande 29. Le premier arbre de rotation 7 s'étend ainsi également au travers du deuxième arbre de rotation 8. Cette disposition des arbres de rotation 7, 8 coaxiaux permet une sensibilité accrue du réglage par l'utilisateur. De plus, cette superposition des boutons de commande 28, 29 permet un gain de la place sur la façade du poêle 26 et facilite l'intégration du dispositif selon l'invention dans des poêles 26 existants.The first and second rotation shafts 7, 8 are advantageously coaxial. For this, the first rotation shaft 7 extends as an example through the first compartment 5 and the second compartment 6 so that its free end actuated by the user springs outside the stove 26 and is advantageously terminated by a control button 28. The second rotating shaft 8 extends from the second compartment 6 and towards the outside of the stove 26 so that its free end is accessible to the user outside of the stove 26 and is advantageously terminated by a control knob 29. The first rotation shaft 7 thus also extends through the second rotary shaft 8. This arrangement of the coaxial rotation shafts 7, 8 allows an increased sensitivity of the adjustment by the user. In addition, this superposition of the control buttons 28, 29 allows a gain of space on the front of the stove 26 and facilitates the integration of the device according to the invention in existing stoves 26.

Selon des possibilités alternatives à celles représentées sur l'ensemble des figures, le premier compartiment 5 et le deuxième compartiment 6 peuvent être intervertis de sorte que le deuxième arbre de rotation 8 s'étende au travers du deuxième compartiment 6 puis du premier compartiment 5, puis au travers du premier arbre de rotation 7 pour être accessible à l'utilisateur en dehors du poêle 26.According to alternative possibilities to those shown in all the figures, the first compartment 5 and the second compartment 6 can be interchanged so that the second rotation shaft 8 extends through the second compartment 6 and then the first compartment 5, then through the first rotation shaft 7 to be accessible to the user outside the stove 26.

Selon les modes de réalisations alternatifs où les moyens d'obturation comprennent des clapets, ces clapets peuvent être montés sur les premier et deuxième arbres de rotation 7,8.According to the alternative embodiments where the closure means comprise valves, these valves can be mounted on the first and second rotation shafts 7,8.

A titre préfère l'ouverture d'entrée d'air 1 est formée sur une première chambre de circulation de l'air 9 et l'ouverture primaire 2 et l'ouverture secondaire 3 sont formées sur une deuxième chambre de circulation de l'air 10.As a preference, the air inlet opening 1 is formed on a first air circulation chamber 9 and the primary opening 2 and the secondary opening 3 are formed on a second air circulation chamber. 10.

Ainsi, la première chambre 9 est fixe et seuls les premiers moyens d'obturation sont mobiles de sorte à venir obturer plus ou moins l'ouverture d'entrée d'air 1.De la même manière, la deuxième chambre 10 est fixe et seuls les deuxièmes et troisièmes moyens d'obturation sont mobiles pour obturer plus ou moins les deuxièmes et troisièmes ouvertures 12, 13.Thus, the first chamber 9 is fixed and only the first sealing means are movable so as to close more or less the air inlet opening 1. In the same way, the second chamber 10 is fixed and only the second and third closure means are movable to close more or less the second and third openings 12, 13.

Préférentiellement, les premiers moyens d'obturation sont agencés de manière concentrique à la première chambre de circulation de l'air 9 et les deuxièmes et troisièmes moyens d'obturation sont agencés de manière concentrique à la deuxième chambre de circulation de l'air 10.Preferably, the first sealing means are arranged concentrically with the first air circulation chamber 9 and the second and third closure means are arranged concentrically with the second air circulation chamber 10.

Selon une disposition préférée, les premiers moyens d'obturation, soit le premier compartiment 5, est disposé à l'intérieur de la première chambre de circulation de l'air 9. Avantageusement, les deuxièmes et troisièmes moyens d'obturations, soit le deuxième compartiment 6, sont disposés dans le prolongement du premier compartiment 5 dans la deuxième chambre de circulation de l'air 10.According to a preferred arrangement, the first sealing means, ie the first compartment 5, is arranged inside the first air circulation chamber 9. Advantageously, the second and third closure means, the second compartment 6, are arranged in the extension of the first compartment 5 in the second air circulation chamber 10.

Selon ce mode de réalisation, il est avantageux que la première et la deuxième chambre de circulation de l'air 9,10 soient constituées d'une seule pièce telle que représentée notamment en figure 1 permettant ainsi de limiter le nombre de pièces du dispositif et réduire la nécessité que l'air de s'échappe du dispositif par des passages non contrôlés.According to this embodiment, it is advantageous for the first and second air circulation chambers 9, 10 to be made in one piece as shown in particular in FIG. figure 1 thus making it possible to limit the number of parts of the device and reduce the need for air to escape from the device through uncontrolled passages.

Il pourrait également être prévu la disposition inverse avec les chambres de circulation de l'air 9, 10 disposées à l'intérieur des moyens d'obturation.It could also be provided the opposite arrangement with the air circulation chambers 9, 10 arranged inside the closure means.

La première chambre de circulation de l'air 9 et la deuxième chambre de circulation de l'air 10 sont avantageusement de forme apte à coopérer avec les moyens d'obturation. A titre d'exemple représenté sur les figures, les chambres de circulations de l'air ainsi que les moyens d'obturations, les premier et deuxième compartiments 5, 6 sont tubulaires.The first air circulation chamber 9 and the second air circulation chamber 10 are preferably shaped to cooperate with the sealing means. As an example shown in the figures, the air circulation chambers and the sealing means, the first and second compartments 5, 6 are tubular.

Pour faciliter le montage du dispositif, la pièce constituant la première et la deuxième chambre de circulation de l'air 9,10 est un tube ouvert à ses deux extrémités permettant d'introduire les premiers, deuxièmes, troisièmes moyens d'obturation, soit les premier et deuxième compartiments 5,6. Les premier et deuxième compartiment 5,6 sont eux des tubes ouverts à une de leurs extrémités destinées à être l'une en regard de l'autre, et clos à leur autre extrémités par lesquelles les arbres de rotation7,8 sont fixés auxdits compartiments 5,6. L'air entrant par l'ouverture d'entrée d'air 1 ne peut alors que ressortir par les ouvertures primaire 2 et secondaire 3.To facilitate assembly of the device, the part constituting the first and second air circulation chamber 9, 10 is a tube open at its two ends for introducing the first, second, third closure means, ie the first and second compartments 5.6. The first and second compartments 5, 6 are open tubes at one of their ends intended to be opposite one another and closed at their other ends by which the rotation shafts 7, 8 are fixed to said compartments 5 6. The air entering through the air inlet opening 1 can then only emerge through the primary 2 and secondary 3 openings.

De sorte à limiter le déplacement en rotation des moyens d'obturation relativement aux ouvertures d'entrée d'air 1 ou ouverture primaire 2 et secondaire 3, les moyens d'obturation peuvent être munis d'éléments de butée.So as to limit the rotational displacement of the closure means relative to the air inlet openings 1 or primary opening 2 and secondary 3, the closure means may be provided with abutment elements.

A titre d'exemple, le premier compartiment 5 comprend un doigt 16 s'étendant radialement et venant en butée contre la section de l'ouverture d'entrée d'air 1. De manière préférée, l'ouverture d'entrée d'air 1 comprend des saillies 18a, 18b permettant à la butée 16 de s'y insérer pour permettre à la première ouverture 11 de correspondre exactement à l'ouverture d'entrée d'air 1. De la même manière, le deuxième compartiment 6 peut comprendre un doigt 17 destiné à venir en butée contre la section de la seconde ouverture 3 comme représenté sur les figures ou bien de la section de l'ouverture primaire 2 (non représentée). De manière préférée, l'ouverture secondaire 3 comprend des saillies 19a, 19b permettant à la butée 17 de s'y insérer pour permettre à la deuxième et troisième ouverture 12, 13 de correspondre exactement à l'ouverture primaire 2 et secondaire 3.For example, the first compartment 5 comprises a finger 16 extending radially and abutting against the section of the air inlet opening 1. Preferably, the air inlet opening 1 includes projections 18a, 18b allowing the abutment 16 to be inserted to allow the first opening 11 to correspond exactly to the air inlet opening 1. In the same way, the second compartment 6 can include a finger 17 intended to abut against the section of the second opening 3 as shown in the figures or the section of the primary opening 2 (not shown). Preferably, the secondary opening 3 comprises projections 19a, 19b allowing the stop 17 to be inserted therein to allow the second and third openings 12, 13 to correspond exactly to the primary opening 2 and secondary opening 3.

Selon le mode de réalisation représenté sur l'ensemble des figures, le deuxième compartiment 6 comprend deux ouvertures primaires 2 et deux ouvertures secondaires 3. Chacune des ouvertures primaires 2 et secondaires 3 permettent d'alimenter au moins un conduit du circuit d'air primaire 23 ou au moins un conduit du circuit d'air secondaire 24.According to the embodiment shown in all the figures, the second compartment 6 comprises two primary openings 2 and two secondary openings 3. Each of the primary openings 2 and secondary 3 allow to feed at least one duct of the primary air circuit 23 or at least one duct of the secondary air circuit 24.

Il est préférable que les moyens de variation et les moyens de répartition soient disposés dans un carter 14 de forme sensiblement commune du type rectangulaire ou circulaire permettant d'adapter le dispositif selon l'invention à différents types de poêles 26 existant tels que représentés en figure 8.It is preferable that the variation means and the distribution means are disposed in a housing 14 of substantially common shape of the rectangular or circular type for adapting the device according to the invention to different types of stoves 26 existing as shown in FIG. figure 8 .

Le dispositif selon l'invention est positionné avec son carter 14 en position basse du poêle 26, c'est-à-dire préférentiellement sous la chambre de combustion 21. Le carter 14 est à titre d'exemple configuré comme représenté en figure 1, c'est-à-dire comprenant trois parties distinctes dont la première partie 4 permet l'arrivée de l'air frais par le conduit d'air frais 15 et son insertion au travers de l'ouverture d'entrée d'air 1 si celle-ci est ouverte. Puis d'une deuxième partie 30 permettant à l'air issu de l'ouverture primaire 2 d'être acheminé vers la chambre de combustion 21 par des conduits du circuit primaire 23. Puis une troisième partie 31 permettant à l'air issu de l'ouverture secondaire 3 d'être acheminé vers la partie haute de la chambre de combustion 21 par des conduits du circuit d'air 24.The device according to the invention is positioned with its casing 14 in the lower position of the stove 26, that is to say preferentially under the combustion chamber 21. The casing 14 is for example configured as shown in FIG. figure 1 , that is to say comprising three distinct parts, the first part 4 of which allows fresh air to enter the fresh air duct 15 and insert it through the air inlet opening 1 if it is open. Then a second portion 30 allowing the air from the primary opening 2 to be conveyed to the combustion chamber 21 by conduits of the primary circuit 23. Then a third portion 31 allowing the air coming from the secondary opening 3 to be conveyed towards the upper part of the combustion chamber 21 by ducts of the air circuit 24.

Le poêle 26 représenté en figure 8 comprend un circuit d'air secondaire 24 muni d'au moins un conduit s'étendant depuis le dispositif selon l'invention jusqu'au dessus de la chambre de combustion 21. Avantageusement lorsque l'air secondaire circule dans le circuit secondaire 24, il est réchauffé au contact de la chambre de combustion 21 et il arrive ainsi au niveau de la chambre de combustion 21 à une température plus élevée que celle de l'air primaire ce qui contribue à améliorer la combustion du combustible situé dans la chambre de combustion 21. Cette arrivée d'air secondaire en partie haute de la chambre de combustion 21 permet également de maintenir un rideau d'air le long de la porte vitrée 22 évitant que les particules de suie ne s'y fixent conservant ainsi une certaine propreté.The stove 26 represented in figure 8 comprises a secondary air circuit 24 provided with at least one duct extending from the device according to the invention to the top of the combustion chamber 21. Advantageously, when the secondary air circulates in the secondary circuit 24, it is heated in contact with the combustion chamber 21 and thus arrives at the combustion chamber 21 at a higher temperature than that of the primary air which contributes to improving the combustion of the fuel located in the combustion chamber 21 This secondary air inlet in the upper part of the combustion chamber 21 also serves to maintain an air curtain along the glass door 22 preventing soot particles from settling therein thus maintaining a certain cleanliness.

Nous décrivons ci-après un procédé d'utilisation d'un poêle 26 muni du dispositif selon l'invention.We describe hereinafter a method of using a stove 26 provided with the device according to the invention.

Tout d'abord, l'utilisateur place dans la chambre de combustion 21 du combustible, par exemple des bûches de bois ou des granulés etc. Il initie la combustion du combustible grâce à du feu, puis referme la porte vitrée 22. Il ouvre l'ouverture d'entrée d'air 1 avantageusement à son maximum de sorte à ce que le débit d'air entrant dans le poêle 26 soit à 100% de sa capacité. Il ouvre également l'ouverture primaire 2 avantageusement à son maximum conduisant à ce que l'ouverture secondaire 3 soit fermée. C'est-à-dire que l'ensemble du débit d'air entrant par l'ouverture d'entrée d'air 1 va sortir du dispositif par l'ouverture primaire 2 et être acheminé vers la chambre de combustion 21 par le circuit d'air primaire 23. Cette arrivée d'air primaire massive permet au combustible d'être séché et génère une bonne combustion.First of all, the user places fuel in the combustion chamber 21, for example logs of wood or granules, etc. It initiates the combustion of the fuel by means of a fire, then closes the glass door 22. It opens the air inlet opening 1 advantageously to its maximum so that the air flow entering the stove 26 is at 100% of its capacity. It also opens the primary opening 2 advantageously to its maximum, so that the secondary opening 3 is closed. That is to say that the entire flow of air entering through the air inlet opening 1 will exit the device through the primary opening 2 and be conveyed to the combustion chamber 21 by the circuit This primary primary air inlet allows the fuel to be dried and generates good combustion.

Lorsque l'ensemble du combustible apparaît comme en combustion et/ou qu'une certaine température est atteinte, l'utilisateur modifie la répartition de l'air comburant entre le circuit d'air 23 et le circuit d'air 24. Il actionne les moyens de répartition pour réduire l'ouverture primaire 2 ce qui conduit à augmenter l'ouverture secondaire 3. L'utilisateur règle ainsi la proportion d'air primaire et d'air secondaire préférentiellement autour de 25% du débit d'air sortant de l'ouverture primaire 2 et 75% du débit sortant par l'ouverture secondaire 3. Cette phase permet d'éliminer les hydrocarbures en suspension et ainsi éviter tout risque d'encrassement de la porte vitrée 22.When all of the fuel appears to be in combustion and / or a certain temperature is reached, the user modifies the distribution of the combustion air between the air circuit 23 and the air circuit 24. distribution means to reduce the primary opening 2 which leads to increase the secondary opening 3. The user thus sets the proportion of primary air and secondary air preferably around 25% of the air flow out of the primary opening 2 and 75% of the outflow through the secondary opening 3. This phase eliminates suspended hydrocarbons and thus avoid any risk of clogging of the glass door 22.

Avantageusement, l'utilisateur commande ensuite les moyens de répartition de sorte à ce que le débit d'air issu de l'ouverture primaire 2 et le débit issu de l'ouverture secondaire 3 soient sensiblement équivalents soit au environs de 50% chacun.Advantageously, the user then controls the distribution means so that the air flow from the primary opening 2 and the flow rate from the secondary opening 3 are substantially equivalent, ie about 50% each.

Durant toutes ces phases d'utilisation, l'utilisateur peut manipuler également les moyens de variation du débit d'air entrant dans le poêle 26 de sorte à améliorer le tirage du poêle 26 et donc la combustion. Préférentiellement, lorsque l'utilisateur répartit l'air comburant entre environ 50% pour le circuit d'air primaire 23 et 50% pour le circuit d'air secondaire 24, il peut alors à cette étape obturer complètement ou quasiment complètement l'ouverture d'entrée d'air 1 de sorte à obtenir des braises, c'est-à-dire une combustion sans flamme permettant le développement de chaleur par rayonnement du poêle 26.During all these phases of use, the user can also manipulate the means of variation of the air flow entering the stove 26 so as to improve the draft of the stove 26 and thus combustion. Preferably, when the user distributes the combustion air between about 50% for the primary air circuit 23 and 50% for the secondary air circuit 24, he can then at this stage completely or almost completely close the opening of the air inlet 1 so as to obtain embers, that is to say a flameless combustion allowing the development of heat radiation of the stove 26.

Ces différentes actions de commandes des moyens de variation et des moyens de répartition par l'utilisateur peuvent être réalisés par des actions directes de celui-ci sur les boutons de commande 28, 29 ou bien automatiquement par l'intermédiaire d'une d'un moyen de commande à distance ou d'un moyen de gestion autonome. Pour cela, le dispositif selon l'invention comprend un moteur d'actionnement 20 qui permet d'actionner notamment les moyens de variation.These different control actions of the variation means and the distribution means by the user can be achieved by direct actions thereof on the control buttons 28, 29 or automatically via one of a remote control means or an autonomous management means. For this, the device according to the invention comprises an actuating motor 20 which allows to actuate in particular the means of variation.

Comme représenté en figures 3 et 4, le moteur d'actionnement 20 est relié à titre d'exemple au premier arbre de rotation 7 des moyens de variation. Le moteur d'actionnement 20 est disposé dans la première partie 4 du carter 14 dans laquelle la circulation d'air frais est à son maximum. Cette disposition est très avantageuse puisqu'elle permet d'éviter l'échauffement du moteur 20 toujours soumis à de l'air frais arrivant du conduit d'air frais 15.As represented in Figures 3 and 4 , the actuating motor 20 is connected by way of example to the first rotation shaft 7 of the variation means. The actuating motor 20 is disposed in the first portion 4 of the casing 14 in which the flow of fresh air is at its maximum. This arrangement is very advantageous since it makes it possible to prevent heating of the motor 20 always subjected to fresh air coming from the fresh air duct 15.

REFERENCESREFERENCES

  1. 1. Ouverture d'entrée d'air1. Air inlet opening
  2. 2. Ouverture primaire2. Primary opening
  3. 3. Ouverture secondaire3. Secondary opening
  4. 4. Première partie4. Part one
  5. 5. Premier compartiment5. First compartment
  6. 6. Deuxième compartiment6. Second compartment
  7. 7. Premier arbre de rotation7. First rotation tree
  8. 8. Deuxième arbre de rotation8. Second rotation shaft
  9. 9. Première chambre9. First room
  10. 10. Deuxième chambre10. Second bedroom
  11. 11. Première ouverture11. First opening
  12. 12. Deuxième ouverture12. Second opening
  13. 13. Troisième ouverture13. Third opening
  14. 14. Carter14. Carter
  15. 15. Conduit d'air frais15. Fresh air duct
  16. 16. Doigt16. Finger
  17. 17. Doigt17. Finger
  18. 18. a - b Saillies18. a - b Stallions
  19. 19. a - b Saillies19. a - b Stallions
  20. 20. Moteur d'actionnement20. Actuating motor
  21. 21. Chambre de combustion21. Combustion chamber
  22. 22. Porte vitrée22. Glass door
  23. 23. Circuit d'air primaire23. Primary air system
  24. 24. Circuit d'air secondaire24. Secondary air system
  25. 25. Circuit d'évacuation des fumées25. Smoke evacuation circuit
  26. 26. Poêle26. Stove
  27. 27. Panneau d'affichage27. Billboard
  28. 28. Bouton de commande28. Command button
  29. 29. Bouton de commande29. Command button
  30. 30. Deuxième partie30. Part two
  31. 31. Troisième partie31. Part three

Claims (15)

  1. Device for controlling the air supply of a stove (26) comprising means for varying the flow rate of combustion air entering the stove (26) and means for dividing the combustion air between a primary air circuit (23) and a secondary air circuit (24) of the stove, wherein:
    - the means for varying the flow rate of combustion air comprise at least one air intake opening (1) and first means for closing the air intake opening (1) mounted rotatably with respect to each other in such a way as to vary the cross-section of the passage of the combustion air through the air intake opening (1) and in that
    - the dividing means comprise at least one primary opening (2) and at least one secondary opening (3) intended to be connected, respectively, to the primary air circuit (23) and to the secondary air circuit (24) as well as second and third closing means arranged movably with respect to the primary opening (2) and secondary opening (3) in such a way as to vary the cross-section of the passage of the combustion air through the primary opening (2) and secondary opening (3), respectively, the second and third closing means and the primary opening (2) and secondary opening (3), respectively, being constrained to move together, characterised in that the sum of the cross-sections of the passage of the combustion air through the primary opening (2) and the secondary opening (3) remains constant regardless of the relative position of the second and third closing means with respect to the primary opening (2) and secondary opening (3).
  2. Device according to the previous claim, wherein the first closing means comprise a first compartment (5) provided with at least one wall in which at least one first opening (11) is made, said opening being suitable for being positioned facing the air intake opening (1) in such a way that when the first opening (11) and the air intake opening (1) are positioned facing each other, the cross-section of the passage of the air through the air intake opening (1) is maximum, and when the first opening (11) at least partially masks the air intake opening (1), this cross-section is reduced.
  3. Device according to claim 1 or 2, wherein the second and third closing means comprise a second compartment (6) provided with at least a second opening (12) and a third opening (13) suitable for being positioned facing the primary opening (2) and secondary opening (3), respectively, in such a way as to at least partially mask these openings or leave them free.
  4. Device according to claim 3, wherein the second opening (12) and third opening (13) are offset angularly with respect to each other.
  5. Device according to claims 3 and 4, wherein the first compartment (5) and second compartment (6) are positioned as extensions of each other.
  6. Device according to any one of the previous claims, wherein one out of the first closing means and the intake opening (1) comprises a first rotary shaft (7) intended to be driven by one of its ends by the user or by a motor in order to provide the mobility necessary for the variation of the cross-section of the passage of the combustion air through the intake opening (1).
  7. Device according to the previous claim, wherein the first rotary shaft (7) extends longitudinally through the first and second compartments (5) (6).
  8. Device according to any one of the previous claims, wherein the second and third closing means comprise a second shaft (8) intended to be driven by one of its ends by the user or by a motor.
  9. Device according to the previous claim, wherein the second shaft is mobile in rotation or in translation.
  10. Device according to any one of the previous two claims taken in combination with claim 6 or 7, wherein the first (7) and second (8) rotary shaft are coaxial.
  11. Device according to the previous claim, wherein the first shaft (7) is housed inside the second shaft (8).
  12. Device according to any one of the previous claims, wherein the air intake opening (1) is formed on a first chamber (9) for circulation of the air and the primary opening (2) and secondary opening (3) are formed on a second chamber (10) for circulation of the air and wherein the second and third closing means are mobile in rotation with respect to the primary opening (2) and secondary opening (3).
  13. Device according to claim 12, wherein the second and third closing means are arranged coaxially and successively in the second chamber (10) for circulation of the air.
  14. Device according to any one of the two claims, wherein the first (9) and second (10) chamber for circulation of the air are connected and positioned as extensions of each other.
  15. Stove (26) comprising a combustion chamber (21), a primary air circuit (23) and a secondary air circuit (24) opening into the combustion chamber (21), characterised by the fact that it comprises a device for controlling the air supply of the stove according to any one of claims 1 to 14.
EP10161403.0A 2009-04-30 2010-04-29 Control device for a stove air supply, stove comprising such a device and method of using the same. Not-in-force EP2246625B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0952937A FR2945105B1 (en) 2009-04-30 2009-04-30 DEVICE FOR CONTROLLING THE AIR SUPPLY OF A STOVE

Publications (2)

Publication Number Publication Date
EP2246625A1 EP2246625A1 (en) 2010-11-03
EP2246625B1 true EP2246625B1 (en) 2017-12-20

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ID=41565885

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10161403.0A Not-in-force EP2246625B1 (en) 2009-04-30 2010-04-29 Control device for a stove air supply, stove comprising such a device and method of using the same.

Country Status (2)

Country Link
EP (1) EP2246625B1 (en)
FR (1) FR2945105B1 (en)

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DK177394B1 (en) * 2011-11-07 2013-03-18 Hwam As Method of combustion of a fuel in a wood-burning stove, a wood-burning stove with a control unit and an air regulator for a wood-burning stove
EP2806214B1 (en) * 2013-05-24 2016-09-07 Fröling Heizkessel- und Behälterbau, Gesellschaft m.b.H Boiler
FR2994728B1 (en) * 2013-09-09 2016-11-18 Christian Schulhof PELLET STOVE
WO2016022369A1 (en) 2014-08-05 2016-02-11 Schaeffler Technologies AG & Co. KG Thermal management valve module with concentric shafts for rotary valve control
CZ307859B6 (en) * 2018-03-12 2019-07-03 Blaze Harmony S.R.O. Solid fuel heater with three-zone combustion air supply
DE102021112506A1 (en) * 2021-05-12 2022-11-17 Ulrich Brunner Ofen- und Heiztechnik Gesellschaft für Guß- und Stahlkonstruktionen mbH Single fireplace with a combustion chamber floor
BE1030034B9 (en) 2022-05-19 2023-07-26 Jide Manual mechanism for admitting air into the combustion chamber of a solid fuel burner

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AT505769A4 (en) * 2008-02-27 2009-04-15 Haas & Sohn Ofentechnik Gmbh Stove for use with heating element, particularly chimney stove, has combustion air that is conveyed over primary air supply, and secondary air supply in combustion chamber
WO2010029567A2 (en) * 2008-07-23 2010-03-18 First Energy Private Limited Biomass stove apparatus and method for its use

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FR1286502A (en) * 1961-04-20 1962-03-02 Pickford Ex Company Ltd Three way stopcock
AT399766B (en) * 1987-09-30 1995-07-25 Riener Karl TRAIN CONTROL DEVICE
GB2389414B (en) * 2002-06-06 2005-09-28 A J Wells & Sons Stove
DE102006011251B4 (en) * 2006-03-10 2008-07-24 Karl Stefan Riener Zuluftsteuervorrichtung
DE102006055536A1 (en) * 2006-11-24 2008-06-19 Audi Ag Rotating flow control valve has at least two independently movable concentric sleeves with apertures inside an outer housing

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Publication number Priority date Publication date Assignee Title
AT505769A4 (en) * 2008-02-27 2009-04-15 Haas & Sohn Ofentechnik Gmbh Stove for use with heating element, particularly chimney stove, has combustion air that is conveyed over primary air supply, and secondary air supply in combustion chamber
WO2010029567A2 (en) * 2008-07-23 2010-03-18 First Energy Private Limited Biomass stove apparatus and method for its use

Also Published As

Publication number Publication date
EP2246625A1 (en) 2010-11-03
FR2945105A1 (en) 2010-11-05
FR2945105B1 (en) 2011-07-29

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