EP0840070A1 - Air extractor for ventilator - Google Patents

Air extractor for ventilator Download PDF

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Publication number
EP0840070A1
EP0840070A1 EP97402631A EP97402631A EP0840070A1 EP 0840070 A1 EP0840070 A1 EP 0840070A1 EP 97402631 A EP97402631 A EP 97402631A EP 97402631 A EP97402631 A EP 97402631A EP 0840070 A1 EP0840070 A1 EP 0840070A1
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EP
European Patent Office
Prior art keywords
extractor according
diameter
extractor
cup
central part
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Granted
Application number
EP97402631A
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German (de)
French (fr)
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EP0840070B1 (en
Inventor
André Amphoux
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Individual
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Individual
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/02—Roof ventilation

Definitions

  • the invention relates to an air extractor for ventilation.
  • the invention aims to propose an extractor of the type in question presenting a simpler embodiment and less expensive.
  • the invention relates to an extractor of the type defined above in which the upper part present in the form of a cup of general shape circular with an offset central part axially, further away from the median plane of the part inner than the outer annular part.
  • the extractor 1 according to the invention is intended for be fixed on a duct 2.
  • the extractor 1 comprises a flange corresponding to conduit 2 and facilitating the attachment to this conduit.
  • Extractor 1 has a general axis of symmetry 3 which, when the extractor 1 is mounted, is placed vertically or substantially vertically.
  • extractor 1 can occupy any position.
  • axis 3 is an axis of revolution, extractor 1 being of general shape circular around axis 3.
  • the extractor 1 has a lower part 4 and an upper part 5.
  • the two parts 4, 5 are placed opposite but separated from each other by being joined to one another the other by means of spacers such as 6. These spacers 6 extend parallel to axis 3.
  • Parts 4 and 5 define a free space 7, open to the outside, forming a venturi.
  • the free space 7 is in communication with a opening 8 in the lower part 4 at its upper end.
  • This opening 8 is itself in communication with conduit 2.
  • the lower part 4 has a shaped part 9 general frustoconical whose small base, upper, where is finds the opening 8, is turned towards the upper part 5 while the large base 11, lower, is turned opposite the top 5.
  • the diameter of the large base 11 is of the order of 1.6 to 2.5 times the diameter d of the small base 10, or of opening 8.
  • the angle ⁇ between the large base 11 and the wall inclined 9a of the part 9 is for example between 20 ° and 45 °.
  • the lower part 4 comprises, in addition to a first part such as 9, a second piece 12 which, like the first piece 9, is shaped general frustoconical.
  • the second part 12 is associated with the first part 9 so that their large bases 11, 13 are common or substantially common and that their small bases 10, 14 are opposite and separated from each other.
  • the small base 10 can be overcome, towards the upper part 5, of a lip 10a, shown in the Figures 2 and 3, of substantially circular section, axis 3 and of diameter d identical to that of the small base 10.
  • the height h 1 of the lip 10a -counted parallel to the axis 3- is of the order of 0.01 to 0.02 times the diameter d.
  • the height h 2 -counted along the axis 3-between the free peripheral edge of the lip 10a and the upper part 5 is of the order of 0.45 to 0.8 times the diameter d.
  • the upper part 5 is in the form of a flattened cup.
  • This cup 5 is generally circular in shape.
  • the cup 5 comprises a central part 15, transverse, axially offset from the part remaining annular outer 16.
  • This axial offset is such that the central part 15 is further away from the median plane of the lower part 4 than is the outer annular part 16.
  • the plane P can be the plane placed between the two bases 10, 11.
  • the plane P can be defined by the large bases 11, 13.
  • the outside diameter of the cup 5 is equal to or close to the outside diameter of the lower part 4 defined by the major base (s) 11, 13.
  • the diameter of the central part 15 is equal to or close to the diameter of the opening 8. It is, in the modes shown, between 0.8 and 1.25 times the diameter d of the small base 10.
  • the diameter of the central part 15 is, in the achievement considered, between 0.4 and 0.6 times approximately the outside diameter of the cup 5.
  • the diameter of the central part 15 is of the order of half the outside diameter of the cup 5.
  • the axial offset of the central part 15 by relative to the annular outer part 16 - along the axis 3- is about a tenth of the diameter of the part central 15, and preferably of the order of 0.15 to 0.5 times the diameter d of the small base 10.
  • the transverse central part 15 is flat or substantially flat, as is the exterior ring finger 16.
  • the transverse central part 15 is connected to the annular outer part 16 by a wall of connection 17 of generally frustoconical shape, inclined by in relation to axis 3.
  • This connecting wall 17 is on the side of the central part 15 and its large diameter of the side of the annular outer part 16.
  • the angle of inclination of the connection wall 17 on axis 3 is between 15 ° and 45 °.
  • this angle is of the order of 20 °.
  • the upper part forming a cup 5 comprises in the embodiment shown, an outer edge 18 falling towards the midplane P.
  • the axial length of the falling outer edge 18 is of the order of one third or two thirds of the axial offset of the central part 15 relative to the external part ring finger 16.
  • the angle of inclination of the falling outer edge 18 on axis 3 can be of the same order of magnitude as that of the connection wall 17.
  • Extractor 1 is then of type static.
  • Space 19 allows the housing of the blade or blades 20 of a turbine 21 fixed to the cup 5 while being placed at opposite of the lower part 4.
  • the extractor 1 can then be of the static type or, when the turbine 21 is operating, of dynamic type.
  • the extractor 1 includes such a turbine, it is preferable that it be provided with a cover protection 22.
  • This protective cover 22 is fixed to the cup 5, on the side opposite the lower part 4.
  • Such a cover 22 has a generally conical shape or frustoconical with, in the latter case, a wall upper transverse 23.
  • Such a cover 22 can be fixed to the part outer annular 16 in the vicinity of the falling edge 18.
  • An opening 24 may be provided between the cover 22 and the annular outer part 16 so as to allow the air circulation inside the cover 22.
  • the cover 22 is of generally frustoconical shape, for improve air circulation, and therefore the cooling of the turbine 21, an opening is provided 23a formed in the upper wall 23 of the cover 22.
  • the wall 23 is surmounted by a hat 25, of generally conical shape.
  • the base 25a of the cap 25 is fixed to the wall 23 with a space 26 between them for the evacuation of air from opening 23a.
  • the extractor When the extractor is of dynamic type, it can optionally have a lower part 4 with a part single 9 as shown in Figure 3 or with two pieces such as 9 and 12.

Abstract

The air extractor comprises lower (4) and upper (5) sections which face one another and are joined together by spacers (6) to provide a gap between them which acts as a Venturi tube in communication with an aperture in the lower section. The upper section of the extractor is generally circular in shape with a recessed centre and an outer diameter more or less the same as that of the lower section. The diameter of the central recess in the upper section of the extractor is more or less the same as that of the aperture in the lower section, or between 0.8 and 1.25 times the diameter of the aperture, and between 0.4 and 0.6 of the outer diameter of the upper section.

Description

L'invention concerne un extracteur d'air destiné à la ventilation.The invention relates to an air extractor for ventilation.

On connaít déjà différentes formes de réalisation d'extracteur d'air pour la ventilation de locaux.We already know different embodiments air extractor for ventilation of premises.

On peut se référer en particulier aux documents FR-A-2.374.591, FR-A-2.438.795, FR-A-2.474.651, FR-A-2.514.469, FR-A-2.518.710, FR-A-2.647.881, FR-A-2.651.563, FR-A-2.658.271 et FR-A-2.709.534.We can refer in particular to documents FR-A-2,374,591, FR-A-2.438.795, FR-A-2.474.651, FR-A-2.514.469, FR-A-2.518.710, FR-A-2.647.881, FR-A-2.651.563, FR-A-2,658,271 and FR-A-2,709,534.

Ces différents documents révèlent un extracteur du type comportant une partie inférieure et une partie supérieure placées en regard mais écartées l'une de l'autre en étant solidarisées l'une à l'autre au moyen d'entretoises, définissant entre elles un espace libre ouvert formant venturi en communication avec une ouverture ménagée dans la partie inférieure.These various documents reveal an extractor of the type with a lower part and a part superior placed opposite but separated from each other by being joined to each other by means spacers, defining between them a free space open forming venturi in communication with an opening formed in the lower part.

L'invention vise à proposer un extracteur du type en question présentant une forme de réalisation plus simple et moins coûteuse.The invention aims to propose an extractor of the type in question presenting a simpler embodiment and less expensive.

A cet effet, l'invention concerne un extracteur du type défini plus haut dans lequel la partie supérieure se présente sous la forme d'une coupelle de forme générale circulaire comportant une partie centrale décalée axialement, plus écartée du plan médian de la partie intérieure que la partie extérieure annulaire.To this end, the invention relates to an extractor of the type defined above in which the upper part present in the form of a cup of general shape circular with an offset central part axially, further away from the median plane of the part inner than the outer annular part.

Les autres caractéristiques de l'invention résulteront de la description qui suivra en référence aux dessins annexés dans lesquels :

  • la figure 1 est une vue schématique en coupe d'un plan axial vertical d'un extracteur selon l'invention de type statique, selon une première forme de réalisation ;
  • la figure 2 est une vue correspondant à celle de la figure 1 d'une seconde variante de réalisation de l'extracteur statique ;
  • la figure 3 est une vue schématique correspondant à celle de la figure 1 d'une variante de réalisation correspondant à un extracteur pouvant fonctionner de façon statique ou dynamique.
The other characteristics of the invention will result from the description which follows with reference to the appended drawings in which:
  • Figure 1 is a schematic sectional view of a vertical axial plane of an extractor according to the invention of the static type, according to a first embodiment;
  • Figure 2 is a view corresponding to that of Figure 1 of a second alternative embodiment of the static extractor;
  • Figure 3 is a schematic view corresponding to that of Figure 1 of an alternative embodiment corresponding to an extractor that can operate statically or dynamically.

L'extracteur 1, selon l'invention, est destiné à être fixé sur un conduit 2.The extractor 1 according to the invention is intended for be fixed on a duct 2.

Le cas échéant, l'extracteur 1 comporte une collerette correspondant au conduit 2 et facilitant la fixation à ce conduit.Where appropriate, the extractor 1 comprises a flange corresponding to conduit 2 and facilitating the attachment to this conduit.

L'extracteur 1 présente un axe général de symétrie 3 qui, lorsque l'extracteur 1 est monté, est placé verticalement ou sensiblement verticalement.Extractor 1 has a general axis of symmetry 3 which, when the extractor 1 is mounted, is placed vertically or substantially vertically.

C'est par rapport à cette position montée qu'est faite la description, étant entendu qu'avant montage, l'extracteur 1 peut occuper n'importe quelle position.It is in relation to this mounted position that make the description, it being understood that before mounting, extractor 1 can occupy any position.

D'une façon générale, l'axe 3 est un axe de révolution, l'extracteur 1 étant de forme générale circulaire autour de l'axe 3.In general, axis 3 is an axis of revolution, extractor 1 being of general shape circular around axis 3.

L'extracteur 1 comporte une partie inférieure 4 et une partie supérieure 5. The extractor 1 has a lower part 4 and an upper part 5.

Les deux parties 4, 5 sont placées en regard mais écartées l'une de l'autre en étant solidarisées l'une à l'autre au moyen d'entretoises telles que 6. Ces entretoises 6 s'étendent parallèlement à l'axe 3.The two parts 4, 5 are placed opposite but separated from each other by being joined to one another the other by means of spacers such as 6. These spacers 6 extend parallel to axis 3.

Les parties 4 et 5 définissent entre elles un espace libre 7, ouvert vers l'extérieur, formant venturi.Parts 4 and 5 define a free space 7, open to the outside, forming a venturi.

L'espace libre 7 est en communication avec une ouverture 8 ménagée dans la partie inférieure 4 à son extrémité supérieure.The free space 7 is in communication with a opening 8 in the lower part 4 at its upper end.

Cette ouverture 8 est elle-même en communication avec le conduit 2.This opening 8 is itself in communication with conduit 2.

Dans les variantes de réalisation des figures 1 et 3, la partie inférieure 4 comporte une pièce 9 de forme générale tronconique dont la petite base, supérieure, où se trouve l'ouverture 8, est tournée vers la partie supérieure 5 tandis que la grande base 11, inférieure, est tournée vers l'opposé de la partie supérieure 5.In the variant embodiments of FIGS. 1 and 3, the lower part 4 has a shaped part 9 general frustoconical whose small base, upper, where is finds the opening 8, is turned towards the upper part 5 while the large base 11, lower, is turned opposite the top 5.

Le diamètre de la grande base 11 est de l'ordre de 1,6 à 2,5 fois le diamètre d de la petite base 10, ou de l'ouverture 8.The diameter of the large base 11 is of the order of 1.6 to 2.5 times the diameter d of the small base 10, or of opening 8.

L'angle α entre la grande base 11 et la paroi inclinée 9a de la pièce 9 est par exemple compris entre 20° et 45°.The angle α between the large base 11 and the wall inclined 9a of the part 9 is for example between 20 ° and 45 °.

Dans le cas de la figure 2, la partie inférieure 4 comporte, outre une première pièce telle que 9, une seconde pièce 12 qui, comme la première pièce 9, est de forme générale tronconique. In the case of Figure 2, the lower part 4 comprises, in addition to a first part such as 9, a second piece 12 which, like the first piece 9, is shaped general frustoconical.

La seconde pièce 12 est associée à la première pièce 9 de manière que leurs grandes bases 11, 13 soient communes ou sensiblement communes et que leurs petites bases 10, 14 soient opposées et écartées l'une de l'autre.The second part 12 is associated with the first part 9 so that their large bases 11, 13 are common or substantially common and that their small bases 10, 14 are opposite and separated from each other.

La petite base 10 peut être surmontée, vers la partie supérieure 5, d'une lèvre 10a, représentée sur les figures 2 et 3, de section sensiblement circulaire, d'axe 3 et de diamètre d identique à celui de la petite base 10.The small base 10 can be overcome, towards the upper part 5, of a lip 10a, shown in the Figures 2 and 3, of substantially circular section, axis 3 and of diameter d identical to that of the small base 10.

La hauteur h1 de la lèvre 10a -comptée parallèlement à l'axe 3- est de l'ordre de 0,01 à 0,02 fois le diamètre d.The height h 1 of the lip 10a -counted parallel to the axis 3- is of the order of 0.01 to 0.02 times the diameter d.

En outre, la hauteur h2 -comptée suivant l'axe 3-entre la bord périphérique libre de la lèvre 10a et la partie supérieure 5 est de l'ordre de 0,45 à 0,8 fois le diamètre d.In addition, the height h 2 -counted along the axis 3-between the free peripheral edge of the lip 10a and the upper part 5 is of the order of 0.45 to 0.8 times the diameter d.

La partie supérieure 5 se présente sous la forme d'une coupelle aplatie.The upper part 5 is in the form of a flattened cup.

Cette coupelle 5 est de forme générale circulaire.This cup 5 is generally circular in shape.

La coupelle 5 comprend une partie centrale 15, transversale, décalée axialement par rapport à la partie restante extérieure annulaire 16.The cup 5 comprises a central part 15, transverse, axially offset from the part remaining annular outer 16.

Ce décalage axial est tel que la partie centrale 15 est plus écartée du plan médian de la partie inférieure 4 que ne l'est la partie extérieure annulaire 16. This axial offset is such that the central part 15 is further away from the median plane of the lower part 4 than is the outer annular part 16.

On entend ici par plan médian de la partie inférieure 4 un plan P, transversal, passant par la partie médiane de la partie inférieure 4.Here we mean by median plane of the part lower 4 a plane P, transverse, passing through the part lower middle 4.

Par exemple, dans le cas d'une partie inférieure 4 ayant la forme de réalisation selon les figures 1 et 3, le plan P peut être le plan placé entre les deux bases 10, 11.For example, in the case of a lower part 4 having the embodiment according to Figures 1 and 3, the plane P can be the plane placed between the two bases 10, 11.

Dans le cas de la variante de réalisation de la figure 2, le plan P peut être défini par les grandes bases 11, 13.In the case of the alternative embodiment of the figure 2, the plane P can be defined by the large bases 11, 13.

Le diamètre extérieur de la coupelle 5 est égal ou voisin du diamètre d extérieur de la partie inférieure 4 définie par la ou les grandes bases 11, 13.The outside diameter of the cup 5 is equal to or close to the outside diameter of the lower part 4 defined by the major base (s) 11, 13.

Le diamètre de la partie centrale 15 est égal ou voisin du diamètre de l'ouverture 8. Il est, dans les modes de réalisation représentés, compris entre 0,8 et 1,25 fois le diamètre d de la petite base 10.The diameter of the central part 15 is equal to or close to the diameter of the opening 8. It is, in the modes shown, between 0.8 and 1.25 times the diameter d of the small base 10.

Le diamètre de la partie centrale 15 est, dans la réalisation considérée, compris entre 0,4 et 0,6 fois environ le diamètre extérieur de la coupelle 5.The diameter of the central part 15 is, in the achievement considered, between 0.4 and 0.6 times approximately the outside diameter of the cup 5.

En particulier, le diamètre de la partie centrale 15 est de l'ordre de la moitié du diamètre extérieur de la coupelle 5.In particular, the diameter of the central part 15 is of the order of half the outside diameter of the cup 5.

Le décalage axial de la partie centrale 15 par rapport à la partie extérieure annulaire 16 -suivant l'axe 3- est de l'ordre du dixième du diamètre de la partie centrale 15, et de préférence, de l'ordre de 0,15 à 0,5 fois le diamètre d de la petite base 10. The axial offset of the central part 15 by relative to the annular outer part 16 - along the axis 3- is about a tenth of the diameter of the part central 15, and preferably of the order of 0.15 to 0.5 times the diameter d of the small base 10.

La partie centrale transversale 15 est plane ou sensiblement plane, de même que la partie extérieure annulaire 16.The transverse central part 15 is flat or substantially flat, as is the exterior ring finger 16.

La partie centrale transversale 15 est raccordée à la partie extérieure annulaire 16 par une paroi de raccordement 17 de forme générale tronconique, inclinée par rapport à l'axe 3.The transverse central part 15 is connected to the annular outer part 16 by a wall of connection 17 of generally frustoconical shape, inclined by in relation to axis 3.

Le petit diamètre de cette paroi de raccordement 17 se trouve du côté de la partie centrale 15 et son grand diamètre du côté de la partie extérieure annulaire 16.The small diameter of this connecting wall 17 is on the side of the central part 15 and its large diameter of the side of the annular outer part 16.

L'angle d'inclinaison de la paroi de raccordement 17 sur l'axe 3 est compris entre 15° et 45°.The angle of inclination of the connection wall 17 on axis 3 is between 15 ° and 45 °.

Dans la réalisation représentée sur les dessins, cet angle est de l'ordre de 20°.In the embodiment shown in the drawings, this angle is of the order of 20 °.

La partie supérieure formant coupelle 5 comporte dans la réalisation représentée, un bord extérieur 18 tombant vers le plan médian P.The upper part forming a cup 5 comprises in the embodiment shown, an outer edge 18 falling towards the midplane P.

La longueur axiale du bord extérieur tombant 18 est de l'ordre du tiers ou des deux tiers du décalage axial de la partie centrale 15 par rapport à la partie extérieure annulaire 16.The axial length of the falling outer edge 18 is of the order of one third or two thirds of the axial offset of the central part 15 relative to the external part ring finger 16.

L'angle d'inclinaison du bord extérieur tombant 18 sur l'axe 3 peut être du même ordre de grandeur que celui de la paroi de raccordement 17.The angle of inclination of the falling outer edge 18 on axis 3 can be of the same order of magnitude as that of the connection wall 17.

Dans les réalisations objets des figures 1 et 2, l'espace 19 ménagé par la partie centrale 15 et la paroi de raccordement 17 est vide. L'extracteur 1 est alors de type statique.In the embodiments of Figures 1 and 2, the space 19 formed by the central part 15 and the wall of connection 17 is empty. Extractor 1 is then of type static.

L'espace 19 permet le logement de la ou des pales 20 d'une turbine 21 fixée à la coupelle 5 en étant placé à l'opposé de la partie inférieure 4.Space 19 allows the housing of the blade or blades 20 of a turbine 21 fixed to the cup 5 while being placed at opposite of the lower part 4.

L'extracteur 1 peut alors être de type statique ou, lorsque la turbine 21 fonctionne, de type dynamique.The extractor 1 can then be of the static type or, when the turbine 21 is operating, of dynamic type.

Lorsque l'extracteur 1 comporte une telle turbine, il est préférable qu'il soit pourvu d'un capot de protection 22.When the extractor 1 includes such a turbine, it is preferable that it be provided with a cover protection 22.

Ce capot de protection 22 est fixé à la coupelle 5, du côté opposé à la partie inférieure 4.This protective cover 22 is fixed to the cup 5, on the side opposite the lower part 4.

Un tel capot 22 présente une forme générale conique ou tronconique avec, dans ce dernier cas, une paroi transversale supérieure 23.Such a cover 22 has a generally conical shape or frustoconical with, in the latter case, a wall upper transverse 23.

Un tel capot 22 peut être fixé à la partie extérieure annulaire 16 au voisinage du bord tombant 18. Une ouverture 24 peut être prévue entre le capot 22 et la partie extérieure annulaire 16 de manière à permettre la circulation de l'air à l'intérieur du capot 22.Such a cover 22 can be fixed to the part outer annular 16 in the vicinity of the falling edge 18. An opening 24 may be provided between the cover 22 and the annular outer part 16 so as to allow the air circulation inside the cover 22.

En outre, dans le mode de réalisation représenté, où le capot 22 est de forme générale tronconique, pour améliorer la circulation de l'air, et donc le refroidissement de la turbine 21, on prévoit une ouverture 23a ménagée dans la paroi supérieure 23 du capot 22. Furthermore, in the embodiment shown, where the cover 22 is of generally frustoconical shape, for improve air circulation, and therefore the cooling of the turbine 21, an opening is provided 23a formed in the upper wall 23 of the cover 22.

Comme représenté à la figure 3, la paroi 23 est surmontée d'un chapeau 25, de forme générale conique. La base 25a du chapeau 25 est fixée à la paroi 23 avec un espace 26 entre eux pour l'évacuation de l'air provenant de l'ouverture 23a.As shown in Figure 3, the wall 23 is surmounted by a hat 25, of generally conical shape. The base 25a of the cap 25 is fixed to the wall 23 with a space 26 between them for the evacuation of air from opening 23a.

Lorsque l'extracteur est de type dynamique, il peut comporter, au choix, une partie inférieure 4 avec une pièce unique 9 telle que cela est représenté sur la figure 3 ou avec deux pièces telles que 9 et 12.When the extractor is of dynamic type, it can optionally have a lower part 4 with a part single 9 as shown in Figure 3 or with two pieces such as 9 and 12.

Claims (23)

Extracteur du type comportant une partie inférieure (4) et une partie supérieure (5), placées en regard et écartées l'une de l'autre en étant solidarisées l'une à l'autre au moyen d'entretoises (6), définissant entre elles un espace libre (7), ouvert formant venturi, en communication avec une ouverture (8) ménagée dans la partie inférieure (4), caractérisé par le fait que la partie supérieure (5) se présente sous la forme d'une coupelle de forme générale circulaire comportant une partie centrale (15) décalée axialement, plus écartée du plan médian (P) de la partie inférieure (4) que la partie extérieure annulaire (16).Extractor of the type comprising a part lower (4) and an upper part (5), placed in gaze and separated from each other by being united to each other by means of spacers (6), defining between them a free space (7), open forming a venturi, in communication with an opening (8) in the part lower (4), characterized in that the part upper (5) is in the form of a cup of generally circular shape with a central part (15) axially offset, further away from the median plane (P) by the lower part (4) than the annular outer part (16). Extracteur selon la revendication 1, caractérisé par le fait que le diamètre extérieur de la coupelle (5) est égal ou voisin du diamètre extérieur de la partie inférieure (4).Extractor according to claim 1, characterized by the fact that the outside diameter of the cup (5) is equal to or close to the outside diameter of the part lower (4). Extracteur selon l'une quelconque des revendications 1 et 2, caractérisé par le fait que le diamètre de la partie centrale (15) est égal ou voisin du diamètre de l'ouverture (8) ménagée dans la partie inférieure.Extractor according to any one of Claims 1 and 2, characterized in that the diameter of the central part (15) is equal to or close to the diameter of the opening (8) formed in the part lower. Extracteur selon la revendication 3, caractérisé par le fait que le diamètre de la partie centrale (15) est compris entre 0,8 et 1,25 fois le diamètre (d) de l'ouverture (8).Extractor according to claim 3, characterized by the fact that the diameter of the central part (15) is between 0.8 and 1.25 times the diameter (d) of the opening (8). Extracteur selon l'une quelconque des revendications 1 à 4, caractérisé par le fait que le diamètre de la partie centrale (15) est compris entre 0,4 et 0, 6 fois environ le diamètre extérieur de la coupelle (5).Extractor according to any one of Claims 1 to 4, characterized in that the diameter of the central part (15) is between 0.4 and 0.6 times the outside diameter of the cup (5). Extracteur selon l'une quelconque des revendications 1 à 5, caractérisé par le fait que le diamètre de la partie centrale (15) est de l'ordre de la moitié du diamètre extérieur de la coupelle (5).Extractor according to any one of Claims 1 to 5, characterized in that the diameter of the central part (15) is of the order of half the outside diameter of the cup (5). Extracteur selon l'une quelconque des revendications 1 à 6, caractérisé par le fait que le décalage axial de la partie centrale (15) par rapport à la partie extérieure annulaire (16) est de l'ordre du dixième du diamètre de la partie centrale (15).Extractor according to any one of Claims 1 to 6, characterized in that the axial offset of the central part (15) relative to the annular outer part (16) is of the order of a tenth the diameter of the central part (15). Extracteur selon l'une quelconque des revendications 1 à 7, caractérisé par le fait que le décalage axial de la partie centrale (15) par rapport à la partie extérieure annulaire (16) est compris entre 0,15 et 0,5 fois le diamètre (d) de l'ouverture (8).Extractor according to any one of Claims 1 to 7, characterized in that the axial offset of the central part (15) relative to the annular outer part (16) is between 0.15 and 0.5 times the diameter (d) of the opening (8). Extracteur selon l'une quelconque des revendications 1 à 8, caractérisé par le fait que la partie centrale (15) est reliée à la partie annulaire (16) par une paroi de raccordement (17) inclinée de façon tronconique sur l'axe (3) de l'extracteur.Extractor according to any one of Claims 1 to 8, characterized in that the part central (15) is connected to the annular part (16) by a connecting wall (17) inclined frusto-conically on the axis (3) of the extractor. Extracteur selon la revendication 9, caractérisé par le fait que l'angle d'inclinaison de la paroi de raccordement (17) sur l'axe (3) est comprise entre 15 et 45°, notamment de l'ordre de 20°.Extractor according to claim 9, characterized by the fact that the angle of inclination of the connection wall (17) on the axis (3) is between 15 and 45 °, in particular of the order of 20 °. Extracteur selon l'une quelconque des revendications 1 à 10, caractérisé par le fait que la coupelle (5) comporte un bord extérieur (18) tombant vers le plan médian (P).Extractor according to any one of Claims 1 to 10, characterized in that the cup (5) has an outer edge (18) falling towards the median plane (P). Extracteur selon la revendication 11, caractérisé par le fait que la longueur axiale du bord extérieur tombant (18) est de l'ordre des deux tiers du décalage axial de la partie centrale (15) par rapport à la partie annulaire (16).Extractor according to claim 11, characterized by the fact that the axial length of the edge falling exterior (18) is of the order of two thirds of the axial offset of the central part (15) relative to the annular part (16). Extracteur selon l'une quelconque des revendications 1 à 12, caractérisé par le fait que la partie inférieure (4) comporte une pièce (9) de forme générale tronconique dont la petite base (10) est tournée vers la partie supérieure (5) en forme de coupelle et dont la grande base (11) est dirigée à l'opposé.Extractor according to any one of Claims 1 to 12, characterized in that the lower part (4) has a shaped part (9) general frustoconical whose small base (10) is turned towards the upper part (5) in the form of a cup and of which the large base (11) is directed opposite. Extracteur selon la revendication 13, caractérisé par le fait que le diamètre de la grande base (11) est compris entre 1,6 et 2,5 fois le diamètre (d) de la petite base (10).Extractor according to claim 13, characterized by the fact that the diameter of the large base (11) is between 1.6 and 2.5 times the diameter (d) of the small base (10). Extracteur selon la revendication 13 ou 14, caractérisé par le fait qu'une lèvre (10a), de section sensiblement circulaire et de mêmes axe (3) et diamètre (d) que l'ouverture (8), est fixée sur la partie inférieure (4), à l'endroit de sa petite base (10), et dirigée vers la partie supérieure (5).Extractor according to claim 13 or 14, characterized in that a lip (10a), of section substantially circular and with the same axis (3) and diameter (d) that the opening (8) is fixed on the lower part (4), at the place of its small base (10), and directed towards the upper part (5). Extracteur selon l'une des revendications 13 à 15, caractérisé par le fait que la partie inférieure (4) comporte, en outre, une seconde pièce (12) de forme générale tronconique, associée à la première pièce (9), les grandes bases (11, 13) étant communes ou sensiblement communes et les petites bases (10, 14) étant opposées. Extractor according to one of claims 13 to 15, characterized in that the lower part (4) further comprises a second shaped part (12) general frustoconical, associated with the first part (9), the large bases (11, 13) being common or substantially municipalities and the small bases (10, 14) being opposite. Extracteur selon l'une quelconque des revendications 1 à 16, caractérisé par le fait que l'espace (19) ménagé par la partie centrale (15) décalée axialement et la paroi de raccordement (17) est vide, l'extracteur (1) étant de type statique.Extractor according to any one of Claims 1 to 16, characterized in that the space (19) formed by the central part (15) offset axially and the connecting wall (17) is empty, the extractor (1) being of static type. Extracteur selon l'une quelconque des revendications 1 à 16, caractérisé par le fait que l'espace (19) en creux ménagé par la partie centrale (15) décalée axialement et la paroi de raccordement (17) permet le logement de la ou des pales (20) d'une turbine (21), l'extracteur (1) pouvant être de type statique ou dynamique.Extractor according to any one of Claims 1 to 16, characterized in that the space (19) recessed formed by the central part (15) offset axially and the connecting wall (17) allows the housing of the blade (s) (20) of a turbine (21), the extractor (1) can be of static type or dynamic. Extracteur selon la revendication 18, caractérisé par le fait que la turbine (21) est fixée sur la partie supérieure formant coupelle (5) à l'opposé de la partie inférieure (4).Extractor according to claim 18, characterized in that the turbine (21) is fixed on the upper part forming a cup (5) opposite the lower part (4). Extracteur selon l'une quelconque des revendications 18 et 19, caractérisé par le fait qu'il comporte, en outre, un capot (22) de protection de la turbine (21), fixé à la coupelle (5).Extractor according to any one of claims 18 and 19, characterized in that it further comprises a cover (22) for protecting the turbine (21), fixed to the cup (5). Extracteur selon la revendication 20, caractérisé par le fait que le capot (22) présente une forme générale conique.Extractor according to claim 20, characterized in that the cover (22) has a general conical shape. Extracteur selon la revendication 20, caractérisé par le fait que le capot (22) présente une forme générale tronconique avec une paroi transversale supérieure (23). Extractor according to claim 20, characterized in that the cover (22) has a general frustoconical shape with a transverse wall upper (23). Extracteur selon la revendication 22, caractérisé par le fait que la paroi supérieure (23) comporte une ouverture (23a) et est surmontée, avec un espace (26), d'un chapeau (25) conique.Extractor according to claim 22, characterized by the fact that the upper wall (23) has an opening (23a) and is surmounted with a space (26), of a conical hat (25).
EP97402631A 1996-11-05 1997-11-04 Air extractor Expired - Lifetime EP0840070B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9613459 1996-11-05
FR9613459A FR2755505B1 (en) 1996-11-05 1996-11-05 AIR EXTRACTOR FOR VENTILATION

Publications (2)

Publication Number Publication Date
EP0840070A1 true EP0840070A1 (en) 1998-05-06
EP0840070B1 EP0840070B1 (en) 2003-03-05

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ID=9497330

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97402631A Expired - Lifetime EP0840070B1 (en) 1996-11-05 1997-11-04 Air extractor

Country Status (7)

Country Link
EP (1) EP0840070B1 (en)
AT (1) ATE233882T1 (en)
DE (1) DE69719448T2 (en)
ES (1) ES2194169T3 (en)
FR (1) FR2755505B1 (en)
HU (1) HU221570B (en)
PL (1) PL184815B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2869976A1 (en) * 2004-05-06 2005-11-11 Andre Amphoux STATIC-TYPE AIR EXTRACTOR COMPRISING A SUPERIOR PART WHOSE EXTERNAL FACE IS INCLINED
CN104121614A (en) * 2014-07-25 2014-10-29 宁波方太厨具有限公司 Rectification acceleration disk structure for range hood
RU219718U1 (en) * 2022-11-29 2023-08-01 Андрей Николаевич Ирецкий DEFLECTOR FOR SMOKE EXHAUST AND EXHAUST VENTILATION SYSTEMS

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2782781B1 (en) 1998-09-02 2000-09-29 Andre Amphoux SAFETY DEVICE FOR GAS EVACUATION SYSTEMS
FR2842586B1 (en) * 2002-07-17 2005-05-20 Invent Or DEVICE FOR EXTRACTING GAS

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2262777A1 (en) * 1974-02-28 1975-09-26 Junqua Yves Static chimney ventilator - housing with concave sides and gutter above, generating depression by wind deflection
FR2374591A1 (en) 1976-12-14 1978-07-13 Amphoux Andre Vacuum inducer for chimney stack - has baffle plate and venturi induced by cross-draught over cones separated by fins
FR2435672A1 (en) * 1978-09-06 1980-04-04 Grp Interet Eco Maison Natural draught roof ventilator - has cone shaped skirt on end of vertical external duct with flat topped S=shaped cap
FR2438795A2 (en) 1978-10-13 1980-05-09 Amphoux Andre Gas and noise absorber for factory chimney - has perforated steel sections holding glass fibre or rock wool acoustic absorbers
FR2474651A1 (en) 1980-01-25 1981-07-31 Amphoux Andre INSTALLATION OF REJECTION IN THE AMBIENT ATMOSPHERE OF A HIGH SPEED PRESSURE GASEOUS FLUID
FR2514469A1 (en) 1981-10-13 1983-04-15 Amphoux Andre STATIC, DYNAMIC AND MECHANICAL GAS FLUID VACUUM DEVICE
FR2518710A1 (en) 1981-12-18 1983-06-24 Amphoux Andre PERFECTLY STATIC GAS FLUID VACUUM CLEANER
FR2647881A1 (en) 1989-05-30 1990-12-07 Amphoux Andre MIXED VENTILATION DEVICE FOR A HOUSE
FR2651563A1 (en) 1989-09-06 1991-03-08 Amphoux Andre GAS SUCTION DEVICE.
FR2658271A1 (en) 1990-02-09 1991-08-16 Amphoux Andre Device for sucking in and discharging gases or fumes and installation comprising a plurality of such devices
EP0641972A1 (en) * 1993-09-03 1995-03-08 André Amphoux Static dynamic device for gaseous fluid removal

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2262777A1 (en) * 1974-02-28 1975-09-26 Junqua Yves Static chimney ventilator - housing with concave sides and gutter above, generating depression by wind deflection
FR2374591A1 (en) 1976-12-14 1978-07-13 Amphoux Andre Vacuum inducer for chimney stack - has baffle plate and venturi induced by cross-draught over cones separated by fins
FR2435672A1 (en) * 1978-09-06 1980-04-04 Grp Interet Eco Maison Natural draught roof ventilator - has cone shaped skirt on end of vertical external duct with flat topped S=shaped cap
FR2438795A2 (en) 1978-10-13 1980-05-09 Amphoux Andre Gas and noise absorber for factory chimney - has perforated steel sections holding glass fibre or rock wool acoustic absorbers
FR2474651A1 (en) 1980-01-25 1981-07-31 Amphoux Andre INSTALLATION OF REJECTION IN THE AMBIENT ATMOSPHERE OF A HIGH SPEED PRESSURE GASEOUS FLUID
FR2514469A1 (en) 1981-10-13 1983-04-15 Amphoux Andre STATIC, DYNAMIC AND MECHANICAL GAS FLUID VACUUM DEVICE
FR2518710A1 (en) 1981-12-18 1983-06-24 Amphoux Andre PERFECTLY STATIC GAS FLUID VACUUM CLEANER
FR2647881A1 (en) 1989-05-30 1990-12-07 Amphoux Andre MIXED VENTILATION DEVICE FOR A HOUSE
EP0404615A1 (en) * 1989-05-30 1990-12-27 André Amphoux Combined ventilation appliance for a living room
FR2651563A1 (en) 1989-09-06 1991-03-08 Amphoux Andre GAS SUCTION DEVICE.
FR2658271A1 (en) 1990-02-09 1991-08-16 Amphoux Andre Device for sucking in and discharging gases or fumes and installation comprising a plurality of such devices
EP0641972A1 (en) * 1993-09-03 1995-03-08 André Amphoux Static dynamic device for gaseous fluid removal
FR2709534A1 (en) 1993-09-03 1995-03-10 Amphoux Andre Static / dynamic device for evacuating gaseous fluid.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2869976A1 (en) * 2004-05-06 2005-11-11 Andre Amphoux STATIC-TYPE AIR EXTRACTOR COMPRISING A SUPERIOR PART WHOSE EXTERNAL FACE IS INCLINED
WO2005116526A1 (en) * 2004-05-06 2005-12-08 Amphoux Andre Static-type air extractor comprising an upper part whose outer surface is inclined
CN104121614A (en) * 2014-07-25 2014-10-29 宁波方太厨具有限公司 Rectification acceleration disk structure for range hood
CN104121614B (en) * 2014-07-25 2016-12-28 宁波方太厨具有限公司 A kind of rectification acceleration dish structure used for range hood
RU219718U1 (en) * 2022-11-29 2023-08-01 Андрей Николаевич Ирецкий DEFLECTOR FOR SMOKE EXHAUST AND EXHAUST VENTILATION SYSTEMS

Also Published As

Publication number Publication date
EP0840070B1 (en) 2003-03-05
PL184815B1 (en) 2002-12-31
HUP9701790A3 (en) 1999-09-28
HUP9701790A2 (en) 1998-07-28
DE69719448D1 (en) 2003-04-10
HU9701790D0 (en) 1997-12-29
FR2755505A1 (en) 1998-05-07
FR2755505B1 (en) 1999-01-15
PL323000A1 (en) 1998-05-11
ES2194169T3 (en) 2003-11-16
DE69719448T2 (en) 2004-01-15
HU221570B (en) 2002-11-28
ATE233882T1 (en) 2003-03-15

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