EP3067620B1 - Âtre autonettoyant pour appareil de chauffage - Google Patents

Âtre autonettoyant pour appareil de chauffage Download PDF

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Publication number
EP3067620B1
EP3067620B1 EP16159691.1A EP16159691A EP3067620B1 EP 3067620 B1 EP3067620 B1 EP 3067620B1 EP 16159691 A EP16159691 A EP 16159691A EP 3067620 B1 EP3067620 B1 EP 3067620B1
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EP
European Patent Office
Prior art keywords
brazier
pairs
cleaning
protuberance
rotation
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EP16159691.1A
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German (de)
English (en)
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EP3067620A1 (fr
Inventor
Gledis HYSENAJ
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Aico SpA
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Aico SpA
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B30/00—Combustion apparatus with driven means for agitating the burning fuel; Combustion apparatus with driven means for advancing the burning fuel through the combustion chamber
    • F23B30/02—Combustion apparatus with driven means for agitating the burning fuel; Combustion apparatus with driven means for advancing the burning fuel through the combustion chamber with movable, e.g. vibratable, fuel-supporting surfaces; with fuel-supporting surfaces that have movable parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H13/00—Grates not covered by any of groups F23H1/00-F23H11/00
    • F23H13/02—Basket grates, e.g. with shaking arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H13/00—Grates not covered by any of groups F23H1/00-F23H11/00
    • F23H13/06—Dumping grates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H15/00—Cleaning arrangements for grates; Moving fuel along grates

Definitions

  • the present invention concerns a brazier or crucible for a pellet heating apparatus, preferably for a pellet stove, allowing to clean a significant portion of the brazier affected by the presence of combustion residues by means of rotation of the relative bottom and simultaneously obtaining at least a certain side air inflow in the brazier, consistent with a partially pyrolytic combustion.
  • the brazier according to the present invention is also suitable to channel said flow and orient it properly for this purpose.
  • braziers having bottom portions, which may be subject to rotation to the end of the discard of the combustion residues.
  • These braziers present other areas affected by the presence of combustion residues (for example, areas belonging to the combustion surface), but which are not cleaned by means of this rotation, because they remain stationary.
  • the object of the present invention is to devise a self-cleaning brazier for a pellet heating apparatus allowing for quick and convenient cleaning of a greater part of the areas of the brazier affected by the presence of such residues compared to currently known systems.
  • the known self-cleaning braziers do not allow to obtain a partially pyrolytic combustion in the sense referred to above, because of the arrangement of the movable parts with respect to the brazier portions that remain stationary during cleaning of the same. In fact, this arrangement creates ventilation gaps or passages through the brazier bottom, which, when in use, allow a great oxygen inflow at the heart of the combustion area.
  • Another object of the present invention is to devise a self-cleaning brazier for a pellet heating apparatus allowing for quick and convenient cleaning of a greater part of the areas of the brazier affected by the presence of such residues compared to currently known systems and allowing to obtain a more pyrolytic combustion compared to known systems.
  • clinker is easily formed resulting from the aggregation of mineral salts contained in the pellets.
  • the clinker may pose issues related to the passage sections, allowing air inflow in the containment volume of the fuel, which in this case is precisely the pellet.
  • Another object of the present invention is to devise a self-cleaning brazier for a pellet heating apparatus allowing for quick and convenient cleaning of a greater part of the areas of the brazier affected by the presence of such residues compared to currently known systems and allowing to obtain a more pyrolytic combustion compared to known systems, and also allowing to remove any clinker formed on air passage sections.
  • Another object of the present invention is to devise a self-cleaning brazier, which is compact and not bulky.
  • the invention relates, as per claim 1, to a self-cleaning brazier for a pellet heating apparatus, preferably for pellet stoves, comprising a containment body and a bottom rotating with respect to said containment body about an axis of rotation, in a configuration of cleaning of said brazier, to discard the combustion residues, wherein, in a configuration of combustion of said brazier, said bottom defines at least a lower surface of a containment volume, suitable to receive an at least partially solid fuel, and said containment body defines at least partially a side surface of the same containment volume, wherein said brazier comprises at least a first pair and a second pair each of which comprising a protuberance belonging to said bottom, and a recess belonging to said containment body and at least partially counter-shaped to said protuberance, wherein, in said configuration of combustion of the brazier, the protuberance of each of said pairs extends along said side surface and the respective recess of each of said pairs is positioned at said side surface, so that said protuberance may be
  • a brazier according to the present invention comprises the following technical aspects.
  • the brazier comprises a first plurality of pairs arranged along a first side of said bottom and comprises said first pair, and a second plurality of pairs arranged along a second side of said bottom, opposite to said first side and comprises said second pair.
  • the first plurality of pairs and the second plurality of pairs each comprise a number of pairs greater than or equal to three and/or less than or equal to fifteen, more preferably less than or equal to twelve, for example four.
  • Each of said pairs belonging to said pluralities of pairs comprises a respective protuberance belonging to said bottom and a respective recess belonging to said containment body and at least partially counter-shaped to said protuberance, wherein in the configuration of combustion of the brazier, the protuberance of each of said pairs belonging to said first plurality and second plurality of pairs extends along said side surface and the respective recess of each of said pairs is positioned at said side surface, so that said protuberance may be received in said respective recess, and wherein, in the configuration of combustion of the brazier, said first plurality of pairs defines a first plurality of respective passage sections and said second plurality of pairs defines a second plurality of respective passage sections, wherein the first plurality of passage sections and the second plurality of passage sections are positioned in correspondence with said side surface and respectively by mutually opposing sides of said axis of rotation.
  • the protuberance of each of said pairs extend from said lower surface of the containment volume, and preferably from a lateral edge of the bottom, said protuberance being oriented towards an upper opening of the containment volume and transversely to said lower surface.
  • the respective recess of each of said pairs is formed at a lower edge of said containment body and, in this configuration of combustion of the brazier, it develops entirely between said lower surface and upper opening, preferably with exclusion of said lower surface.
  • the entire bottom surface is movable thanks to the degree of freedom of rotation of the bottom relative to the containment body, and simultaneously the same protuberances which define the air passage can effectively jut out from the bottom itself so as to have a cleaning effect on the same passage sections during this rotation.
  • the rotation of the bottom makes sure that the protuberances, moving in their respective recesses, can clean the air passage sections, which may be especially subject to clinker issues.
  • At least one air passage opening is defined, which extends at least partially along at least one portion of the perimeter of said lower surface, wherein said at least one opening is positioned along at least one of said first and second side of said bottom and is interposed between at least two passage sections belonging to at least one of said first plurality of passage section and said second plurality of passage sections.
  • This opening serves to facilitate the relative movement of the bottom and of the containment body and simplifies the construction of the containment body itself, besides ensuring a certain air inflow always from a perimeter-side area of the fuel containment volume.
  • At least two of said pairs defining two respective passage sections, placed by mutually opposite parts of said axis of rotation, are configured so that the protuberance of one of said at least two pairs is suitable to cross the recess of the other of said at least two pairs, following the rotation, of at least 180 degrees, of said bottom around said axis of rotation and with respect to said containment body.
  • the rotation of the bottom is particularly useful in order to overcome the clinker issues, because the protuberances are also adapted to clean up the combustion residues attached to the recesses defining the respectively opposite passage sections.
  • the bottom is secured to said containment body by fastening means configured to allow the rotation of said bottom relative to said containment body so that said axis of rotation is parallel to said lower surface of the containment volume and preferably passing through said base.
  • the overall dimensions of the brazier are optimized in that the bottom substantially rotates about itself, and the distance between the bottom surface of the containment volume and the axis of rotation can be remarkably reduced.
  • a distance between said axis of rotation and said lower surface is less than or equal to 5 cm, more preferably less than or equal to 2 cm.
  • the fastening means comprise a pin integral with said bottom and a recess formed in the containment body, or vice versa, said pin being suitable for engaging in said recess.
  • the fastening means comprise a first removable means of connection suitable to fix a plate for closing said recess.
  • the rotation of the bottom relative to the containment body can reach at least 180 degrees, and preferably at least 360 degrees.
  • the containment body and/or the containment volume and/or the bottom and/or the entire brazier are symmetrical with respect to a first plane of symmetry passing through said axis of rotation.
  • the first plane of symmetry is perpendicular to a plane interpolating the lower surface of the containment volume.
  • said first pair/first plurality of pairs and second pair/second plurality of pairs are symmetrical with respect to the first plane of symmetry.
  • said first and second plurality of pairs are symmetrical with respect to a second plane of symmetry perpendicular to the axis of rotation.
  • the bottom is devoid of through openings at least in the central area, and more preferably is completely devoid of through openings. In this way, pyrolytic combustion is favoured.
  • an air passage is defined, comprising said air passage sections and said above-mentioned air passage opening(s), said passage continuously developing along the whole perimeter edge of the bottom, with the exception of, at least, the portions at the axis of rotation.
  • pyrolytic combustion is favoured thanks to the perimeter arrangement of such passage.
  • the bottom and/or the containment body are each a single piece, more preferably in cast iron.
  • the invention in a second aspect, relates to a pellet heating apparatus, for example a thermo-stove or an insert or a boiler, preferably a pellet stove, containing the self-cleaning brazier having at least one of these features or any combination of these features.
  • a pellet heating apparatus for example a thermo-stove or an insert or a boiler, preferably a pellet stove, containing the self-cleaning brazier having at least one of these features or any combination of these features.
  • Figure 1 shows a self-cleaning brazier 1, preferably for pellet stoves, comprising a containment body 2 and a bottom 3.
  • the bottom 3 is adapted to rotate with respect to said containment body 2 around an axis of rotation R, for discard of combustion residues.
  • the brazier 1 assumes a cleaning configuration, which is not shown in the figures.
  • the bottom 3 defines at least a lower surface F of a containment volume V.
  • the containment volume V is adapted to receive at least partially solid fuel.
  • the containment body 2 defines at least partially a side surface L of the same containment volume V.
  • the direction C shown in Figures 1 , 3 , 4 and 5 , perpendicular to the axis of rotation R, refers to a possible condition of use of the same brazier 1, when the same is in such configuration of combustion. In such a condition of use, it is expected that the bottom 3 is suitable for supporting the solid fuel, such as the pellet, and the direction C is prepared according to the vertical, preferably parallel to gravity.
  • This direction C is also practically perpendicular to a plane interpolating the lower surface F of the containment volume V, and substantially to the lower surface F of the containment volume V.
  • the lower surface F of the containment volume V is defined by the upper surface of the bottom 3, said upper surface being opposite to a lower surface S of the bottom 3 itself.
  • the upper surface of the bottom 3 is not shown in the accompanying figures, in so far as practically coincident, in this embodiment, with the lower surface F of the containment volume V.
  • This lower surface S of the bottom 3 is visible only in figure 4 and, in profile, in figure 3 .
  • the lower surface F of the containment volume V extends transversally to the direction C, in the configuration of combustion of the brazier 1 and in the condition of use of the figures.
  • the side surface L of the containment volume V always in this possible condition of use, is directed toward that direction C and virtually extends around this direction C.
  • the bottom 3 is devoid of through openings at least in its central area, and more preferably is completely devoid of through openings.
  • the bottom 3 substantially extends along said lower surface F of the containment volume V, and, at least in correspondence with said lower surface F, is devoid of openings or holes or air passage means, in order to make sure that the combustion is partially pyrolytic.
  • the brazier 1 comprises at least one first pair and one second pair.
  • Such at least one first pair comprises a protuberance 4a belonging to said bottom 3 and a recess 5a belonging to the containment body 2.
  • Such at least one second pair comprises a protuberance 4b belonging to said bottom 3 and a recess 5b belonging to the containment body 2.
  • a protuberance 4b of a second pair is visible in figures 2 and 3 , while in figure 3 no protuberance 4a is visible, as it is covered by a respective protuberance 4b
  • a recess 5a is at least partly counter-shaped and associated with the respective protuberance 4a, and a recess 5b is at least partly counter-shaped and associated with the respective protuberance 4b.
  • the protuberance 4a or 4b of each of said pairs extends along said side surface L.
  • the respective recess 5a or 5b of each of said pairs is positioned at said side surface L, so that said protuberance 4a or 4b may be received in said respective recess 5a or 5b.
  • protuberances 4a on one side of the bottom 3 corresponding to a first side 3a
  • protuberances 4b on an opposite side of the bottom 3 corresponding to a second side 3b opposite the first side 3a
  • more recesses 5b on an opposite side of the bottom 3 corresponding to a second side 3b opposite the first side 3a.
  • any of the first pairs each comprising one protuberance 4a and one recess 5a defines a first air passage section 6a.
  • any of the second pairs each comprising one protuberance 4b and one recess 5b defines a second air passage section 6b.
  • Any first passage section 6a and any second passage section 6b are placed at the side surface L of the containment volume V and respectively by mutually opposite parts of the bottom 3 and/or of the axis of rotation R.
  • any of the first pairs each comprising a protuberance 4a and a recess 5a is located on one side of a centre plane of the bottom 3, said plane containing the axis of rotation R.
  • Any of the second pairs, each comprising a protuberance 4b and a recess 5b is located on the opposite side of said centre plane.
  • such centre plane coincides with a first plane of symmetry of the whole brazier 1.
  • Such first plane of symmetry may also be of the single containment body 2 and/or of the single bottom 3 and/or of the containment volume V. This first plane of symmetry is not shown in the attached figures, but can be considered parallel to the plane of figure 3 and passing through the axis of rotation R.
  • such pairs and the respective passage sections are symmetric, in the configuration of combustion of the brazier 1, also with respect to a second plane of symmetry, not shown, but which can be considered perpendicular to the plane of figure 3 and perpendicular to the axis of rotation R.
  • Any first pair comprising a protuberance 4a and a recess 5a and any second pair comprising a protuberance 4b and a recess 5b are then located respectively by mutually opposing parts of the axis of rotation R.
  • the same comprises a first plurality of pairs, which is disposed along a first side 3a of said bottom 3, which includes more first pairs in turn comprising each a protuberance 4a and a recess 5a.
  • the same comprises a second plurality of pairs which is disposed along a first side 3b of said bottom 3, opposed to said first side 3a and including more second pairs in turn comprising each a protuberance 4b and a recess 5b.
  • the protuberance 4a or 4b of each of said pairs belongs to the bottom 3, and the respective recess 5a or 5b belongs to said containment body 2.
  • Such recess 5a or 5b is at least partly counter-shaped to said protuberance 4a or 4b.
  • the protuberance 4a or 4b of each of said pairs extends along the side surface L.
  • the respective recess 5a or 5b of each of said pairs is positioned at said side surface L, so that said protuberance 4a or 4b may be received in said respective recess 5a or 5b.
  • the first plurality of pairs situated along the side 3a of the bottom 3, defines a first plurality of respective sections of passage 6a.
  • the first plurality of pairs and the second plurality of pairs are practically located from mutually opposite parts of the bottom 3 and/or the axis of rotation R, and may also each comprise a different number of pairs compared to that in the embodiment shown.
  • the first plurality of passage sections 6a and the second plurality of passage sections 6b are positioned in correspondence with said side surface L and respectively by mutually opposing parts of said bottom 3 and/or of said axis of rotation.
  • Figure 1 only shows passage sections 6a of the first plurality of passage sections, while in figure 3 , through the passage sections 6b of the second plurality, also the corresponding passage sections 6a of the first plurality are visible. These passage sections 6a of the first plurality of passage sections are in fact practically respectively opposed to and/or facing the respective passage sections 6b of the second plurality.
  • each of the protuberances 4a and 4b of said pairs preferably extends from said lower surface F and starting preferably from a side edge of the bottom 3, and is oriented toward an upper opening B of the containment volume V.
  • Each of these protuberances 4a and 4b advantageously extend transversely to the lower surface F of the containment volume V.
  • the respective recess 5a or 5b of each of said pairs is formed at a lower edge 8 of said containment body 2 and is situated entirely between the lower surface F of the containment volume V and said upper opening B.
  • each recess 5a or 5b does not extend over any part of the lower surface F of the containment volume V.
  • At least one further air passage opening 7 is defined, which extends at least partially along at least one portion of the perimeter of said lower surface F.
  • Said at least one opening 7 is advantageously located along at least one of said opposite sides 3a and 3b of said bottom 3, and then cooperates with the sections of the air passage 6a or 6b for air to pass through, preferably in such a way as to still maintain a partially pyrolytic combustion.
  • Figure 1 shows more openings 7 interposed between at least two passage sections 6a and located along the first side 3a.
  • openings 7 from the side 3b are interposed between the passage sections 6b.
  • openings which are not indicated also along the sides of the bottom 3, transverse to sides 3a and 3b, which are also defined between the containment body 2 and the bottom 3, and preferably between a lower edge 8 of the containment body 2 and the bottom 3.
  • the openings 7 are interstices between an edge 8 of the containment body 2 and an edge of the bottom 3, and allow air inflow also by a perimeter portion of the lower surface F of the containment volume 2.
  • air inflow through the part of the bottom 3 defining the lower surface F of the containment volume V is completely inhibited, as such part of the bottom 3 has no holes or openings or other air passage means.
  • At least two of said pairs defining two respective passage sections 6a and 6b, placed by mutually opposite parts of said axis of rotation R, are configured so that the protuberance 4a of one of said at least two pairs is suitable to cross the recess 5b of the other of said at least two pairs, following the rotation, of at least 180 degrees, of said bottom 3 around said axis of rotation R and with respect to said containment body 2.
  • a first pair comprising a protuberance 4a and a recess 5a placed on the side of the first side 3a of the bottom 3 and defining the passage section 6a
  • the same first pair is configured so that, following the rotation of the bottom 3 relative to the containment body 2 preferably of at least 180 degrees, the same protuberance 4a passes through the recess 5b which defines the opposite passage section 6b, thus placed on the side of the second side 3b of said bottom 3, which it is opposite to the first side 3a.
  • the containment body 2 and/or the containment volume V and/or the entire brazier 1 are symmetrical with respect to said first plane of symmetry on which said axis of rotation R lies.
  • the first plane of symmetry is perpendicular to a plane interpolating the lower surface F of the containment volume V.
  • said first plurality of pairs and said second plurality of pairs are symmetrical with respect to the first plane of symmetry.
  • the bottom 3 is devoid of through openings at least in the central area, and more preferably is completely devoid of through openings. In this way, pyrolytic combustion is favoured.
  • an air passage is then defined, comprising the above-mentioned air passage sections 6a and 6b and the above-mentioned opening(s) 7 .
  • Such passage extends virtually continuously along substantially the entire peripheral edge of the bottom 3, preferably with the exception of at least the portions at the axis of rotation.
  • this step is defined between a lower edge 8 of the containment body 2 and a peripheral edge of the bottom 3.
  • the bottom 3 is rigidly coupled to said containment body 2 by fastening means 9 configured to allow the rotation of said bottom 3 with respect to said containment body 2.
  • the fastening means 9 of this embodiment are such that said axis of rotation R is parallel to said lower surface F of the containment volume, and is preferably passing through said bottom 3.
  • the fastening means 9 comprise a pin 9a integral to said bottom 3 and a recess 9b formed in the containment body 2, or vice versa.
  • the pin 9a is suitable for engaging in said recess 9b.
  • the fastening means 9 preferably comprise a first removable means of connection 9c suitable to fix a plate 9d for closing said recess 9b.
  • the rotation of the bottom 3 with respect to the containment body 2 can reach at least 180 degrees, and preferably at least 360 degrees, to increase the time during which the residues can be separated from the bottom 3 itself, and to enhance the effect of the fall of the same residues.
  • a rotation of 360 degrees ensures that every passage section 6a or 6b is cleaned by the protrusion 4a or 4b corresponding to it or from that corresponding to the opposite section 6b or 6a, during a number of distinct steps that may reach the number of three for a complete rotation of the bottom 3.
  • the brazier 1 is also advantageously associated with movement means 10 of the bottom 3, which comprise a shaft 10a arranged along the axis of rotation R.
  • Such shaft 10a engages in a hole of the bottom 3 by means of a removable connection means 10b that fits into a transverse hole 10c of the same shaft 10a.
  • the invention attains the intended purposes. In particular, it allows obtaining a partially pyrolytic combustion thanks to the absence of air passages in the part of the bottom 3 to define the lower surface F of the containment volume V, and then in the part that holds the fuel.
  • the present invention enables a quick cleaning, which can also be automated in a simple way, and allows to clean a very significant portion of the surface of the brazier 1 on which combustion residues remain, since the entire portion of the bottom of the brazier 1 can be rotated with respect to the lateral portion.

Claims (12)

  1. Brasier autonettoyant (1) pour un appareil de chauffage, de préférence un appareil de chauffage à pellets, comprenant un corps de contenance (2) et un fond (3) tournant par rapport au dit corps de contenance (2) autour d'un axe de rotation (R), dans une configuration de nettoyage dudit brasier (1), pour éliminer les résidus de combustion, dans lequel, dans une configuration de combustion dudit brasier (1), ledit fond (3) définit au moins une surface inférieure (F) d'un volume de contenance (V) pouvant recevoir au moins un combustible partiellement solide, et ledit corps de contenance (2) définit au moins partiellement une surface latérale (L) du même volume de contenance (V),
    dans lequel ledit fond (3) ne comporte pas d'ouvertures passantes au moins dans sa partie centrale,
    dans lequel ledit brasier (1) comprend au moins une première paire (4a, 5a) et une seconde paire (4b, 5b) comprenant chacune une saillie (4a, 4b) appartenant au dit fond (3), et un renfoncement (5a, 5b) appartenant au dit corps de contenance (2) et présentant au moins une forme partiellement complémentaire à ladite saillie (4a, 4b),
    dans lequel, dans ladite configuration de combustion du brasier (1), la saillie (4a, 4b) de chacune desdites paires se prolonge le long de ladite surface latérale (L) et le renfoncement (5a, 5b) respectif est positionné en correspondance de ladite surface latérale (L) de sorte que ladite saillie (4a, 4b) puisse être reçue dans ledit renfoncement (5a, 5b) respectif,
    dans lequel, dans ladite configuration de combustion du brasier (1), ladite première paire (4a, 5a) définit une première section de passage (6a) d'air et ladite seconde paire (4b, 5b) définit une seconde section de passage (6b) d'air, ladite première section de passage (6a) d'air et ladite seconde section de passage (6b) d'air étant positionnées en correspondance de ladite surface latérale (L) et, respectivement, par des parties mutuellement opposées dudit axe de rotation (R),
    dans lequel le brasier comprend une première pluralité de paires (4a, 5a) disposée le long d'un premier côté (3a) dudit fond (3) et comprend ladite première paire (4a, 5a), et une seconde pluralité de paires (4b, 5b) disposée le long d'un second côté (3b) dudit fond (3), opposé au dit premier côté (3a), et comprend ladite seconde paire (4b, 5b),
    dans lequel chacune desdites paires, appartenant auxdites pluralités de paires, comprend une saillie (4a, 4b) respective appartenant au dit fond (3) et un renfoncement (5a, 5b) respectif appartenant au dit corps de contenance (2) et présentant au moins une forme partiellement complémentaire à ladite saillie (4a, 4b),
    dans lequel, dans la configuration de combustion du brasier (1), la saillie (4a, 4b) de chacune desdites paires appartenant auxdites première et seconde pluralités de paires se prolonge le long de ladite surface latérale (L) et le renfoncement (5a, 5b) respectif est positionné en correspondance de ladite surface latérale (L) de sorte que ladite saillie (4a, 4b) puisse être reçue dans ledit renfoncement (5a, 5b) respectif, et
    caractérisé en ce que, entre un bord inférieur (8) du corps de contenance (2) et ledit fond (3) est définie au moins une ouverture de passage (7) d'air qui se prolonge au moins partiellement le long d'au moins une partie du périmètre de ladite surface inférieure (F) ; ladite au moins une ouverture (7) étant positionnée le long d'au moins un desdits premier côté (3a) et second côté (3b) dudit fond (3) et est interposé entre au moins deux sections de passage (6a, 6b) appartenant à au moins une desdites première pluralité de sections de passage et seconde pluralité de sections de passage.
  2. Brasier (1) selon la revendication 1, dans lequel ledit fond (3) est complètement dépourvu d'ouvertures passantes.
  3. Brasier autonettoyant (1) selon la revendication 1 ou 2, dans lequel la première pluralité de paires et la seconde pluralité de paires comprennent chacune un nombre de paires supérieur ou égal à trois et/ou inférieur ou égal à quinze.
  4. Brasier autonettoyant (1) selon l'une ou plusieurs des revendications précédentes, dans lequel, dans ladite configuration de combustion du brasier autonettoyant (1), la saillie (4a, 4b) de chacune desdites paires se prolonge de ladite surface inférieure (F) du volume de contenance (V) et, de préférence, d'un bord latéral du fond (3), ladite saillie (5a, 5b) étant orientée vers une ouverture supérieure (B) du volume de contenance (V) et transversalement à ladite surface inférieure (F),
    et dans lequel le renfoncement (5a, 5b) respectif de chacune desdites paires est formé en correspondance dudit bord inférieur (8) dudit corps de contenance (2) et, dans cette configuration de combustion du brasier (1), se développe entièrement entre ladite surface inférieure (F) et l'ouverture supérieure (B), de préférence en excluant ladite surface inférieure (F).
  5. Brasier autonettoyant (1) selon l'une ou plusieurs des revendications précédentes, dans lequel entre ledit bord inférieur (8) dudit corps de contenance (2) et un bord périphérique dudit fond (3) est défini un passage d'air comprenant lesdites sections de passage (6a, 6b) d'air et l'/les ouverture(s) de passage (7) d'air susmentionnée(s), ledit passage d'air se développant continuellement substantiellement le long de tout le bord périphérique du fond, en excluant les parties en correspondance de l'axe de rotation.
  6. Brasier autonettoyant (1) selon l'une ou plusieurs des revendications précédentes, dans lequel au moins deux desdites paires définissant deux sections de passage (6a, 6b) respectives, placées par des parties mutuellement opposées dudit axe de rotation (R), sont configurées de sorte que la saillie (4a, 4b) d'une desdites au moins deux paires est adaptée pour traverser le renfoncement (5b, 5a) de l'autre desdites au moins deux paires, suite à la rotation, d'au moins 180 degrés, dudit fond (3) autour dudit axe de rotation (R) et par rapport au dit corps de contenance (2).
  7. Brasier autonettoyant (1) selon l'une ou plusieurs des revendications précédentes, dans lequel ledit fond (3) est contraint audit corps de contenance (2) au moyen de moyens de fixation (9) configurés pour permettre la rotation dudit fond (3), par rapport au dit corps de contenance (2), de sorte que ledit axe de rotation (R) soit parallèle à ladite surface inférieure (F) et passe à travers ledit fond (3), et dans lequel lesdits moyens de fixation (9) comprennent une cheville (9a) solidaire dudit fond (3) et un renfoncement (9b) formé dans le corps de contenance (2) ou vice versa, ladite cheville (9a) étant adaptée pour se mettre en prise dans ledit renfoncement (9b), lesdits moyens de fixation (9) comprenant, de préférence, un premier moyen de raccordement (9c) amovible adapté pour fixer une plaque (9d) servant à fermer ledit renfoncement (9b) .
  8. Brasier autonettoyant (1) selon l'une ou plusieurs des revendications précédentes, dans lequel ladite rotation peut atteindre au moins 180 degrés et, de préférence, au moins 360 degrés, et dans lequel une distance entre ledit axe de rotation et ladite surface inférieure est inférieure ou égale à 5 cm, de préférence, inférieure ou égale à 2 cm.
  9. Brasier autonettoyant (1) selon l'une ou plusieurs des revendications précédentes, dans lequel dans ledit brasier de la configuration de combustion, le corps de contenance (2) et/ou le volume de contenance et/ou le fond (3) et/ou tout le brasier (1) sont symétriques par rapport à un premier plan de symétrie passant par ledit axe de rotation et perpendiculaires à un plan interpolant la surface inférieure du volume de contenance.
  10. Brasier autonettoyant (1) selon l'une ou plusieurs des revendications précédentes, dans lequel le fond (3) et/ou le corps de contenance (2) forme chacun un seul élément.
  11. Brasier autonettoyant (1) selon l'une ou plusieurs des revendications précédentes, dans lequel ladite pluralité de sections de passage (6a, 6b), sur des côtés opposés du fond (3), est configurée pour garantir un afflux d'air correct et permettre l'obtention d'une combustion partiellement pyrolytique.
  12. Appareil de chauffage, de préférence un appareil de chauffage à pellets, comprenant le brasier autonettoyant (1) selon l'une ou plusieurs des revendications précédentes.
EP16159691.1A 2015-03-13 2016-03-10 Âtre autonettoyant pour appareil de chauffage Active EP3067620B1 (fr)

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HUP1700096A2 (en) * 2017-03-06 2018-09-28 Primus Net Kft Improved pellet burner
IT201700079170A1 (it) * 2017-07-13 2019-01-13 Klover S R L Braciere per un dispositivo da riscaldamento
IT201700079181A1 (it) * 2017-07-13 2019-01-13 Klover S R L Braciere e metodo di pulizia per rimuovere residui combusti dal braciere

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US20070215021A1 (en) * 2003-04-09 2007-09-20 Even Temp, Inc. Apparatus and method for combustion
US8210110B2 (en) * 2006-10-18 2012-07-03 Hestia Heating Products, Inc. Apparatus for combustion of biofuels
AT506970B1 (de) * 2008-10-27 2010-01-15 Haas & Sohn Ofentechnik Gmbh Reinigungssystem für einen ofen
DE102013010191B4 (de) * 2013-06-17 2018-08-16 Karl Stefan Riener Brennmulde und Ofen mit Brennmulde

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