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WO2019102168A1 - Nozzle for a spraying device - Google Patents

Nozzle for a spraying device Download PDF

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Publication number
WO2019102168A1
WO2019102168A1 PCT/FR2018/053004 FR2018053004W WO2019102168A1 WO 2019102168 A1 WO2019102168 A1 WO 2019102168A1 FR 2018053004 W FR2018053004 W FR 2018053004W WO 2019102168 A1 WO2019102168 A1 WO 2019102168A1
Authority
WO
WIPO (PCT)
Prior art keywords
nozzle
opening
horn
air
tooth
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.)
Ceased
Application number
PCT/FR2018/053004
Other languages
French (fr)
Inventor
Josep GODIA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Exel Industries SA
Original Assignee
Exel Industries SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Exel Industries SA filed Critical Exel Industries SA
Priority to EP18826415.4A priority Critical patent/EP3694651B1/en
Priority to ES18826415T priority patent/ES2900319T3/en
Publication of WO2019102168A1 publication Critical patent/WO2019102168A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
    • B05B1/262—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3026—Gate valves; Sliding valves; Cocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/3086—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a grooved body, which is movable in the outlet orifice
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/32—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/025—Nozzles having elongated outlets, e.g. slots, for the material to be sprayed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages

Definitions

  • the present invention relates to a nozzle for a spraying device.
  • a spraying device is conventionally used, carried by an agricultural machine, such as a tractor or a trailer, in order to traverse a plant plantation, advantageously in line, such as trees or vines, and to spray on said plants a product. plant.
  • an air circuit brings a propelling air to a nozzle.
  • the propellant air enters through an inlet of the nozzle, the cross member through and out through an opening at the outlet, in the form of a jet of air directed towards the plants to be treated.
  • the nozzle provides a function of shaping the air jet and its distribution to the plants to be treated.
  • the phytosanitary product is dispersed at the exit opening of the nozzle in order to be worn or blown by the jet of air into the foliage of the plants to be treated.
  • the present invention overcomes this disadvantage by providing a nozzle for a spraying device comprising, at its distal end, a flag whose opening comprises at least one tooth.
  • the entire contour of the opening is serrated.
  • a tooth has a height and / or a width of between 1 and 50% of the length of the opening.
  • the interior of the nozzle such as the interior of the roof, comprises pins and / or blades.
  • the nozzle further comprises a rotary plug disposed in the horn, where the inside of the plug comprises pins and / or blades.
  • a pin or a blade has a height of between 1 and 50% of the length of the opening.
  • the presence of tooth at the outlet opening of the nozzle or pins and / or blades inside the nozzle tends to disturb the flow of the air jet.
  • the jet of air thus rendered turbulent increases its chances of deflecting the screen sheet and thus increases the penetration of the treatment in the foliage.
  • the invention further relates to a spraying device comprising such a nozzle.
  • FIG. 1-5 illustrates in perspective view a possible embodiment of a nozzle according to the invention
  • FIGS. 1 and 2 show an entire nozzle
  • FIGS. 3 and 4 show a nozzle cut along a longitudinal plane
  • a nozzle 2 forms a pipe capable of transporting propellant air, typically from a turbine.
  • nozzle means an assembly configured to ensure a mixture of a phytosanitary product with the propellant air to form an aerosol, that is to say to spray and diffuse the aerosol.
  • this nozzle is removable in one piece of the wall which carries it for easy maintenance.
  • the air enters through an air inlet 31 formed in a sleeve 3.
  • the air typically arrives from the top. It is deflected by an elbow in the sleeve 3, to continue its course substantially horizontally.
  • the sleeve 3 is extended, in continuity, by a horn 5 in charge of the diffusion of the propelling air.
  • the horn 5 forms the distal end of the nozzle 2 and ends at its opening 51.
  • the opening is understood to mean the terminal edge of the horn 5.
  • this opening 51 of the horn 5 comprises at least one tooth 54, 55, 56.
  • the objective of this at least one tooth 54, 55, 56 is to disrupt the jet of air coming out of the nozzle in order to make it turbulent, so as to agitate the leaves, to increase the penetration of the phytosanitary product and to avoid a risk of masking by a screen sheet.
  • teeth 53, 54, 55 along the contour of the opening 51 is all the more advantageously disturbing for the jet of air that the teeth cover a large length of the contour of the opening 51.
  • the entire contour of the opening 51 is serrated.
  • the horn 5 is configurable by means of two flaps 52, 53 movable relative to the horn body 57, in order to vary the size of the opening 51 and the opening angle of the spray jet.
  • This feature is advantageous in that a flag 5 more open can spray at a shorter distance, for plants closer. On the contrary a flag 5 more closed allows to spray at a greater distance, for plants more distant.
  • Each flap 52, 53 is preferably independently adjustable.
  • the axis of articulation of a flap is preferably horizontal.
  • the setting can be continuous or in discrete positions.
  • Position locking means is advantageously used to allow the adjustment to resist shaking.
  • the contour of the opening 51 is shared between the three pieces 57, 52, 53. Also, at least one tooth 54 is disposed on the portion of the opening 51 made by the body 57, at least one tooth 55 is disposed on the part of the opening 31 made by the flap 52 and at least one tooth 56 is disposed on the part of the opening 51 carried out by component 53.
  • teeth 53, 54, 55 have any profile, for example triangular.
  • the height and / or the modulus of a tooth 53, 54, 55 is between 1 and 50% of the length of the opening 21 of the roof 5.
  • a significant turbulence creating effect is obtained by teeth 53, 54, 55 disposed on the opening 51.
  • This effect can be further increased by placing inside, for example on at least one inner wall of the nozzle 2, pins 82 and / or blades 81.
  • the term internal wall is preferably a wall in contact with the air flow when it passes through the nozzle 2.
  • These pins 82 and / or blades 81, of substantially transverse extension in the direction of the air flow are intended to disturb the flow of air as it passes through the nozzle 2 and particularly when it runs along the inner walls.
  • a lined wall of pins and / or blades can be any internal wall. It may be the inner wall of the sleeve 3. However the disruptive effect obtained is all the more important as one approaches the exit. Also the inner wall of the roof 5 is preferred.
  • the pins 82 are substantially punctual and have a height of between 1 and 50% of the length of the opening 51 of the horn 5.
  • the blades 81 have any shape, for example linear or wave, of any length.
  • the blades 81 have a height of between 1 and 50% of the length of the opening 51 of the roof 5.
  • the nozzle 2 also comprises a closure means 8, in the form of a plug 8.
  • This plug 8 is arranged, advantageously in the horn 5 and its rotation allows to vary the useful section of the horn 5 / of the nozzle 2.
  • FIG. 3 shows an open plug 8 and FIG. a bushel 8 closed.
  • the inner walls in contact with the air are not those of the flag 5, but those of the plug 8.
  • the internal walls of the plug 8 include pins 82 and / or blades 81.
  • the bushel 8 as shown has two openings for the passage of air and therefore four internal walls.
  • the two central walls are here covered with blades 81, while the two side walls are covered with pins 82.
  • Such an arrangement is of course illustrative.
  • the invention also relates to a spraying device comprising such a nozzle 2.
  • This nozzle is more commonly known as a diffuser.
  • This nozzle forms an assembly or block which is configured to be selectively mountable and dismountable in one piece of the wall that carries it, preferably without tools.
  • this diffuser comprises a channel intended to carry air from its inlet to its outlet.
  • This channel is provided with at least one protuberance shaped to act on the flow of air. By acting it is understood that the protuberances can guide the flow of air. It is similar to slats as can be seen on the right side of Figure 4.
  • protuberances can disturb the air flow at the outlet of the diffuser.
  • These protuberances then have the form of pin and / or ribs arranged in the channel.
  • protuberances are completed and / or replaced by elements reported in the channel.
  • the diffuser does not include moving flaps on the output.

Landscapes

  • Nozzles (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Catching Or Destruction (AREA)

Abstract

The invention relates to a nozzle (2) for a spraying device comprising, on its distal end, a pavilion (5) having an opening (51) comprising at least one tooth (54, 55, 56). Advantageously, the presence of a tooth at the outlet of the nozzle or spurs and/or blades inside the nozzle tends to disturb the flow of the air jet. In the event of there being a film forming a screen facing the air jet, the air jet that has thus been rendered turbulent is more likely to deflect said screen film and to thereby increase the penetration of the treatment into the foliage.

Description

Buse pour dispositif de pulvérisation  Nozzle for spray device

La présente invention concerne une buse pour un dispositif de pulvérisation. Un dispositif de pulvérisation est classiquement utilisé, porté par une machine agricole, tel un tracteur ou une remorque, afin de parcourir une plantation de végétaux, avantageusement en ligne, tel des arbres ou de la vigne, et permettre de pulvériser sur lesdits végétaux un produit phytosanitaire. The present invention relates to a nozzle for a spraying device. A spraying device is conventionally used, carried by an agricultural machine, such as a tractor or a trailer, in order to traverse a plant plantation, advantageously in line, such as trees or vines, and to spray on said plants a product. plant.

Afin de réaliser la pulvérisation, un circuit d'air apporte un air propulseur jusqu'à une buse. L'air propulseur entre par une entrée de la buse, la traverse de part en part et ressort par une ouverture en sortie, sous forme d'un jet d'air dirigé vers les végétaux à traiter. La buse assure une fonction de mise en forme du jet d'air et sa distribution vers les végétaux à traiter. Le produit phytosanitaire est dispersé à l'ouverture de sortie de la buse afin d'être porté ou soufflé par le jet d'air dans le feuillage des végétaux à traiter.  In order to carry out the spraying, an air circuit brings a propelling air to a nozzle. The propellant air enters through an inlet of the nozzle, the cross member through and out through an opening at the outlet, in the form of a jet of air directed towards the plants to be treated. The nozzle provides a function of shaping the air jet and its distribution to the plants to be treated. The phytosanitary product is dispersed at the exit opening of the nozzle in order to be worn or blown by the jet of air into the foliage of the plants to be treated.

Il peut arriver que le jet d'air rencontre une feuille d'un des végétaux, sensiblement transverse au jet d'air, et formant écran. Un tel écran est pénalisant en ce qu'il empêche une pénétration profonde dans l'épaisseur du feuillage du produit phytosanitaire.  It may happen that the jet of air meets a leaf of one of the plants, substantially transverse to the air jet, and forming a screen. Such a screen is penalizing in that it prevents a deep penetration in the thickness of the foliage of the phytosanitary product.

Aussi il est recherché un moyen d'éviter ou d'atténuer les effets de ce problème.  Also, a way is sought to avoid or mitigate the effects of this problem.

La présente invention remédie à cet inconvénient en proposant une buse pour dispositif de pulvérisation comprenant, à son extrémité distale, un pavillon dont l'ouverture comprend au moins une dent.  The present invention overcomes this disadvantage by providing a nozzle for a spraying device comprising, at its distal end, a flag whose opening comprises at least one tooth.

Selon une autre caractéristique, tout le contour de l'ouverture est dentelé.  According to another characteristic, the entire contour of the opening is serrated.

Selon une autre caractéristique, une dent présente une hauteur et/ou une largeur comprise entre 1 et 50% de la longueur de l'ouverture.  According to another characteristic, a tooth has a height and / or a width of between 1 and 50% of the length of the opening.

Selon une autre caractéristique l'intérieur de la buse, tel l'intérieur du pavillon, comprend des picots et/ou des lames . Selon une autre caractéristique, la buse comprend encore un boisseau rotatif disposé dans le pavillon, où l'intérieur du boisseau comprend des picots et/ou des lames. According to another characteristic, the interior of the nozzle, such as the interior of the roof, comprises pins and / or blades. According to another characteristic, the nozzle further comprises a rotary plug disposed in the horn, where the inside of the plug comprises pins and / or blades.

Selon une autre caractéristique, un picot ou une lame présente une hauteur comprise entre 1 et 50% de la longueur de 1 ' ouverture .  According to another characteristic, a pin or a blade has a height of between 1 and 50% of the length of the opening.

Avantageusement, la présence de dent à l'ouverture de sortie de la buse ou de picots et/ou lames à l'intérieur de la buse tend à perturber l'écoulement du jet d'air. En cas de feuille formant écran au jet d'air, le jet d'air ainsi rendu turbulent, augmente ses chances de dévier la feuille écran et ainsi augmente la pénétration du traitement dans le feuillage.  Advantageously, the presence of tooth at the outlet opening of the nozzle or pins and / or blades inside the nozzle tends to disturb the flow of the air jet. In the case of an air-jet screen sheet, the jet of air thus rendered turbulent increases its chances of deflecting the screen sheet and thus increases the penetration of the treatment in the foliage.

L' invention concerne encore un dispositif de pulvérisation, comprenant une telle buse.  The invention further relates to a spraying device comprising such a nozzle.

D'autres caractéristiques, détails et avantages de l'invention ressortiront plus clairement de la description détaillée donnée ci-après à titre indicatif en relation avec des dessins sur lesquels : Other characteristics, details and advantages of the invention will emerge more clearly from the detailed description given below as an indication in relation to drawings in which:

- la figure 1-5 illustrent en vue perspective un mode de réalisation possible d'une buse selon l'invention,  FIG. 1-5 illustrates in perspective view a possible embodiment of a nozzle according to the invention,

- les figures 1 et 2 présente une buse entière,  FIGS. 1 and 2 show an entire nozzle,

- les figures 3 et 4 présente une buse coupée selon un plan longitudinal,  FIGS. 3 and 4 show a nozzle cut along a longitudinal plane;

- la figure 5 présente une vue éclatée.  - Figure 5 shows an exploded view.

Une buse 2 forme une conduite apte à transporter l'air propulseur, typiquement issu d'une turbine. A nozzle 2 forms a pipe capable of transporting propellant air, typically from a turbine.

On entend par le vocable « buse » un ensemble configuré pour assurer un mélange d'un produit phytosanitaire avec l'air propulseur pour former un aérosol, c'est-à-dire pour pulvériser et diffuser l'aérosol. De préférence, cette buse est amovible d'un seul tenant de la paroi qui la porte pour en faciliter la maintenance.  The term "nozzle" means an assembly configured to ensure a mixture of a phytosanitary product with the propellant air to form an aerosol, that is to say to spray and diffuse the aerosol. Preferably, this nozzle is removable in one piece of the wall which carries it for easy maintenance.

Tel que plus particulièrement visible à la figure 1, l'air entre par une entrée d'air 31 pratiquée dans un manchon 3. L'air arrive typiquement du haut. Il est dévié par un coude dans le manchon 3, afin de poursuivre son parcours sensiblement horizontalement. Le manchon 3 est prolongé, en continuité, par un pavillon 5 en charge de la diffusion de l'air propulseur. Tel que plus particulièrement visible à la figure 2 le pavillon 5 forme l'extrémité distale de la buse 2 et se termine au niveau de son ouverture 51. On entend ici par ouverture le bord terminal du pavillon 5. As more particularly visible in Figure 1, the air enters through an air inlet 31 formed in a sleeve 3. The air typically arrives from the top. It is deflected by an elbow in the sleeve 3, to continue its course substantially horizontally. The sleeve 3 is extended, in continuity, by a horn 5 in charge of the diffusion of the propelling air. As can be seen more particularly in FIG. 2, the horn 5 forms the distal end of the nozzle 2 and ends at its opening 51. Here, the opening is understood to mean the terminal edge of the horn 5.

Selon une caractéristique importante, cette ouverture 51 du pavillon 5 comprend au moins une dent 54, 55, 56. L'objectif de cette au moins une dent 54, 55, 56 est de perturber le jet d'air sortant de la buse afin de le rendre turbulent, de manière à agiter les feuilles, pour augmenter la pénétration du produit phytosanitaire et éviter un risque de masquage par une feuille écran.  According to an important characteristic, this opening 51 of the horn 5 comprises at least one tooth 54, 55, 56. The objective of this at least one tooth 54, 55, 56 is to disrupt the jet of air coming out of the nozzle in order to make it turbulent, so as to agitate the leaves, to increase the penetration of the phytosanitary product and to avoid a risk of masking by a screen sheet.

La présence de dents 53, 54, 55 le long du contour de l'ouverture 51 est d'autant plus avantageusement perturbante pour le jet d'air que les dents recouvrent une longueur importante du contour de l'ouverture 51. Aussi selon un mode de réalisation préférentiel tout le contour de l'ouverture 51 est dentelé.  The presence of teeth 53, 54, 55 along the contour of the opening 51 is all the more advantageously disturbing for the jet of air that the teeth cover a large length of the contour of the opening 51. preferential embodiment the entire contour of the opening 51 is serrated.

Selon le mode de réalisation illustré, le pavillon 5 est configurable au moyen de deux volets 52, 53 mobiles relativement au corps 57 de pavillon, afin de varier la taille de l'ouverture 51 et l'angle d'ouverture du jet pulvérisé.  According to the illustrated embodiment, the horn 5 is configurable by means of two flaps 52, 53 movable relative to the horn body 57, in order to vary the size of the opening 51 and the opening angle of the spray jet.

Cette caractéristique est avantageuse en ce qu'un pavillon 5 plus ouvert permet de pulvériser à plus courte distance, pour des végétaux plus proches. Au contraire un pavillon 5 plus fermé permet de pulvériser à plus grande distance, pour des végétaux plus éloignés.  This feature is advantageous in that a flag 5 more open can spray at a shorter distance, for plants closer. On the contrary a flag 5 more closed allows to spray at a greater distance, for plants more distant.

Chaque volet 52, 53 est préférentiellement réglable indépendamment. L'axe d'articulation d'un volet est préférentiellement horizontal. Comme précédemment le réglage peut être continu ou selon des positions discrètes. Un moyen de blocage en position est avantageusement utilisé pour permettre au réglage de résister aux secousses.  Each flap 52, 53 is preferably independently adjustable. The axis of articulation of a flap is preferably horizontal. As before, the setting can be continuous or in discrete positions. Position locking means is advantageously used to allow the adjustment to resist shaking.

Aussi le contour de l'ouverture 51 est partagé entre les trois pièces 57, 52, 53. Aussi, au moins une dent 54 est disposée sur la partie de l'ouverture 51 réalisée par le corps 57, au moins une dent 55 est disposée sur la partie de l'ouverture 31 réalisée par le volet 52 et au moins une dent 56 est disposée sur la partie de l'ouverture 51 réalisée par le volet 53. Also the contour of the opening 51 is shared between the three pieces 57, 52, 53. Also, at least one tooth 54 is disposed on the portion of the opening 51 made by the body 57, at least one tooth 55 is disposed on the part of the opening 31 made by the flap 52 and at least one tooth 56 is disposed on the part of the opening 51 carried out by component 53.

Ces dents 53, 54, 55 présentent un profil quelconque, par exemple triangulaire. La hauteur et/ou le module d'une dent 53, 54, 55 est compris entre 1 et 50% de la longueur de l'ouverture 21 du pavillon 5.  These teeth 53, 54, 55 have any profile, for example triangular. The height and / or the modulus of a tooth 53, 54, 55 is between 1 and 50% of the length of the opening 21 of the roof 5.

Un effet créateur de turbulences important est obtenu par des dents 53, 54, 55 disposées sur l'ouverture 51. Cet effet peut encore être augmenté en disposant à l'intérieur, par exemple sur au moins une paroi interne de la buse 2, des picots 82 et/ou des lames 81. On entend ici par paroi interne de préférence une paroi en contact avec le flux d'air lors de sa traversée de la buse 2. Ces picots 82 et/ou lames 81, d'extension sensiblement transverse à la direction du flux d'air ont pour objectif de perturber l'écoulement de l'air lorsqu' il traverse la buse 2 et particulièrement lorsqu' il longe les parois internes. Une paroi tapissée de picots et/ou de lames peut être toute paroi interne. Il peut s'agir de la paroi interne du manchon 3. Cependant l'effet perturbateur obtenu est d'autant plus important que l'on se rapproche de la sortie. Aussi la paroi interne du pavillon 5 est préférée.  A significant turbulence creating effect is obtained by teeth 53, 54, 55 disposed on the opening 51. This effect can be further increased by placing inside, for example on at least one inner wall of the nozzle 2, pins 82 and / or blades 81. Here, the term internal wall is preferably a wall in contact with the air flow when it passes through the nozzle 2. These pins 82 and / or blades 81, of substantially transverse extension in the direction of the air flow are intended to disturb the flow of air as it passes through the nozzle 2 and particularly when it runs along the inner walls. A lined wall of pins and / or blades can be any internal wall. It may be the inner wall of the sleeve 3. However the disruptive effect obtained is all the more important as one approaches the exit. Also the inner wall of the roof 5 is preferred.

Les picots 82 sont sensiblement ponctuels et présentent une hauteur comprise entre 1 et 50% de la longueur de l'ouverture 51 du pavillon 5. Les lames 81 présentent des formes quelconques, par exemple linéaires ou en vagues, de longueurs quelconques. Les lames 81 présentent une hauteur comprise entre 1 et 50% de la longueur de l'ouverture 51 du pavillon 5.  The pins 82 are substantially punctual and have a height of between 1 and 50% of the length of the opening 51 of the horn 5. The blades 81 have any shape, for example linear or wave, of any length. The blades 81 have a height of between 1 and 50% of the length of the opening 51 of the roof 5.

Selon une autre caractéristique, plus particulièrement visible aux figures 3-5, la buse 2 comprend encore un moyen d'obturation 8, sous la forme d'un boisseau 8. Ce boisseau 8 est disposé, avantageusement dans le pavillon 5 et sa rotation permet de varier la section utile du pavillon 5/de la buse 2. La figure 3 montre un boisseau 8 ouvert et la figure 4 montre un boisseau 8 fermé. According to another characteristic, more particularly visible in FIGS. 3-5, the nozzle 2 also comprises a closure means 8, in the form of a plug 8. This plug 8 is arranged, advantageously in the horn 5 and its rotation allows to vary the useful section of the horn 5 / of the nozzle 2. FIG. 3 shows an open plug 8 and FIG. a bushel 8 closed.

Dans ce cas les parois internes en contact avec l'air ne sont plus celles du pavillon 5, mais celles du boisseau 8. Aussi, les parois internes du boisseau 8 comprennent des picots 82 et/ou des lames 81. A noter que le boisseau 8 tel que représenté comporte deux ouvertures de passage de l'air et donc quatre parois internes. Les deux parois centrales sont ici recouvertes de lames 81, tandis que les deux parois latérales sont recouvertes de picots 82. Un tel arrangement est bien sûr illustratif.  In this case the inner walls in contact with the air are not those of the flag 5, but those of the plug 8. Also, the internal walls of the plug 8 include pins 82 and / or blades 81. Note that the bushel 8 as shown has two openings for the passage of air and therefore four internal walls. The two central walls are here covered with blades 81, while the two side walls are covered with pins 82. Such an arrangement is of course illustrative.

L' invention concerne encore un dispositif de pulvérisation comprenant une telle buse 2.  The invention also relates to a spraying device comprising such a nozzle 2.

Cette buse est plus communément appelée diffuseur. Cette buse forme un ensemble ou bloc qui est configuré pour être sélectivement montable et démontable d'un seul tenant de la paroi qui la porte, préférentiellement sans outillage.  This nozzle is more commonly known as a diffuser. This nozzle forms an assembly or block which is configured to be selectively mountable and dismountable in one piece of the wall that carries it, preferably without tools.

Selon un mode de réalisation alternatif ce diffuseur comprend un canal destiné à porter l'air de son entrée à sa sortie. Ce canal est muni d'au moins une protubérance conformé pour agir sur le flux d'air. Par agir on comprend que les protubérances peuvent guider le flux d'air. Elle s'apparente alors à des lamelles comme on peut le voir sur la partie droite de la figure 4.  According to an alternative embodiment, this diffuser comprises a channel intended to carry air from its inlet to its outlet. This channel is provided with at least one protuberance shaped to act on the flow of air. By acting it is understood that the protuberances can guide the flow of air. It is similar to slats as can be seen on the right side of Figure 4.

Alternativement les protubérances peuvent perturber le flux d'air en sortie du diffuseur. Ces protubérances présentent alors la forme de picot et/ou de nervures disposées dans le canal .  Alternatively the protuberances can disturb the air flow at the outlet of the diffuser. These protuberances then have the form of pin and / or ribs arranged in the channel.

Alternativement les protubérances sont complétées et/ou remplacées par des éléments rapportés dans le canal.  Alternatively the protuberances are completed and / or replaced by elements reported in the channel.

Selon une alternative le diffuseur ne comprend pas de volets mobiles en sortie.  According to one alternative, the diffuser does not include moving flaps on the output.

Il est bien évidemment possible de combiner les différents modes de réalisation décrit dans cette demande.  It is of course possible to combine the different embodiments described in this application.

Claims

REVENDICATIONS 1. Buse (2) pour dispositif de pulvérisation comprenant, à son extrémité distale, un pavillon (5) , caractérisée en ce que le bord terminal du pavillon (5), formant l'ouverture (51) du pavillon (5), comprend au moins une dent (54, 55, 56) . Spray nozzle (2) comprising, at its distal end, a horn (5), characterized in that the terminal edge of the horn (5), forming the opening (51) of the horn (5), comprises at least one tooth (54, 55, 56). 2. Buse (2) selon la revendication 1, où une dent (54, 55, 56) présente une hauteur et/ou une largeur comprise entre 1 et 50% de la longueur de l'ouverture (51) . 2. Nozzle (2) according to claim 1, wherein a tooth (54, 55, 56) has a height and / or a width between 1 and 50% of the length of the opening (51). 3. Buse (2) selon l'une quelconque des revendications 1 ou 2, où tout le contour de l'ouverture (51) est dentelé. 3. Nozzle (2) according to any one of claims 1 or 2, wherein the entire contour of the opening (51) is serrated. 4. Buse (2) selon l'une quelconque des revendications 1 à 3, où l'intérieur de la buse (2), préférentiellement l'intérieur du pavillon (5), comprend des picots (82) et/ou des lames (81) . 4. Nozzle (2) according to any one of claims 1 to 3, wherein the interior of the nozzle (2), preferably the interior of the roof (5), comprises pins (82) and / or blades ( 81). 5. Buse (2) selon l'une quelconque des revendications 1 à 4, comprenant encore un boisseau (8) rotatif disposé dans le pavillon (5), où l'intérieur du boisseau (8) comprend des picots (82) et/ou des lames (81) . 5. Nozzle (2) according to any one of claims 1 to 4, further comprising a rotary plug (8) disposed in the horn (5), wherein the inside of the plug (8) comprises pins (82) and / or blades (81). 6. Buse (2) selon l'une quelconque des revendications 4 ou 5, où un picot (82) ou une lame (81) présente une hauteur comprise entre 1 et 50% de la longueur de l'ouverture (51) . 6. Nozzle (2) according to any one of claims 4 or 5, wherein a pin (82) or a blade (81) has a height between 1 and 50% of the length of the opening (51). 7. Buse (2) pour dispositif de pulvérisation comprenant, à son extrémité distale, un pavillon (5) , caractérisée en ce que l'ouverture (51) du pavillon (5) comprend au moins une dent (54, 55, 56) et où l'intérieur de la buse (2), préférentiellement l'intérieur du pavillon (5), comprend des picots (82) et/ou des lames (81) . Spray device nozzle (2) comprising, at its distal end, a horn (5), characterized in that the opening (51) of the horn (5) comprises at least one tooth (54, 55, 56) and wherein the interior of the nozzle (2), preferably the interior of the horn (5), comprises pins (82) and / or blades (81). 8. Dispositif de pulvérisation, caractérisé en ce qu'il comprend une buse (2) selon l'une quelconque des revendications Spray device, characterized in that it comprises a nozzle (2) according to any one of the claims
PCT/FR2018/053004 2017-11-27 2018-11-27 Nozzle for a spraying device Ceased WO2019102168A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18826415.4A EP3694651B1 (en) 2017-11-27 2018-11-27 Nozzle for a spraying device
ES18826415T ES2900319T3 (en) 2017-11-27 2018-11-27 Nozzle for spray device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1761230 2017-11-27
FR1761230A FR3074070B1 (en) 2017-11-27 2017-11-27 NOZZLE FOR SPRAYING DEVICE

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WO2019102168A1 true WO2019102168A1 (en) 2019-05-31

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PCT/FR2018/053004 Ceased WO2019102168A1 (en) 2017-11-27 2018-11-27 Nozzle for a spraying device

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EP (1) EP3694651B1 (en)
ES (1) ES2900319T3 (en)
FR (1) FR3074070B1 (en)
WO (1) WO2019102168A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1837575A (en) * 1929-11-18 1931-12-22 Elmer G Munz Spray head
US3708119A (en) * 1970-09-16 1973-01-02 Vicard Pierre G Spraying nozzles
FR2912601A1 (en) * 2007-02-21 2008-08-22 Exel Ind Sa Liquid product i.e. phytosanitary product, diffuser for use on e.g. grapevine, has deflector arranged around nozzles to define atmospheric air intake, and nose and nozzle protected with periphery of nozzles
WO2016025930A1 (en) * 2014-08-15 2016-02-18 Bowles Fluidics Corporation Compact split-lip shear washer nozzle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1837575A (en) * 1929-11-18 1931-12-22 Elmer G Munz Spray head
US3708119A (en) * 1970-09-16 1973-01-02 Vicard Pierre G Spraying nozzles
FR2912601A1 (en) * 2007-02-21 2008-08-22 Exel Ind Sa Liquid product i.e. phytosanitary product, diffuser for use on e.g. grapevine, has deflector arranged around nozzles to define atmospheric air intake, and nose and nozzle protected with periphery of nozzles
WO2016025930A1 (en) * 2014-08-15 2016-02-18 Bowles Fluidics Corporation Compact split-lip shear washer nozzle

Also Published As

Publication number Publication date
EP3694651B1 (en) 2021-11-17
FR3074070A1 (en) 2019-05-31
FR3074070B1 (en) 2020-11-27
ES2900319T3 (en) 2022-03-16
EP3694651A1 (en) 2020-08-19

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