EP0561697A1 - Fluid dispensing nozzle - Google Patents

Fluid dispensing nozzle Download PDF

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Publication number
EP0561697A1
EP0561697A1 EP93400679A EP93400679A EP0561697A1 EP 0561697 A1 EP0561697 A1 EP 0561697A1 EP 93400679 A EP93400679 A EP 93400679A EP 93400679 A EP93400679 A EP 93400679A EP 0561697 A1 EP0561697 A1 EP 0561697A1
Authority
EP
European Patent Office
Prior art keywords
channel
bore
axis
dispensing nozzle
distribution
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.)
Granted
Application number
EP93400679A
Other languages
German (de)
French (fr)
Other versions
EP0561697B1 (en
Inventor
Gilles Baudin
Frank Lacout
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.)
LOreal SA
Original Assignee
LOreal SA
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Filing date
Publication date
Application filed by LOreal SA filed Critical LOreal SA
Publication of EP0561697A1 publication Critical patent/EP0561697A1/en
Application granted granted Critical
Publication of EP0561697B1 publication Critical patent/EP0561697B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
    • B05B1/3426—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels emerging in the swirl chamber perpendicularly to the outlet axis
    • 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
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside 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
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
    • B05B1/3431—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
    • B05B1/3442—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the interface being a cone having the same axis as the outlet
    • 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
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
    • B05B1/3431—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
    • B05B1/3447—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the interface being a cylinder having the same axis as the outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/28—Nozzles, nozzle fittings or accessories specially adapted therefor

Definitions

  • the present invention relates to a dispensing nozzle, for dispensing a fluid contained in a container.
  • the dispensing nozzles are traversed by this fluid following a user action: this action is, for example, a pressure exerted on the walls of the container then provided flexible, or the actuation of a support, equipped with the nozzle, which controls the opening of a valve with which the container is equipped then filled with a gas under pressure to propel the fluid to be distributed through the nozzle, or which implements means for pumping the fluid.
  • this action is, for example, a pressure exerted on the walls of the container then provided flexible, or the actuation of a support, equipped with the nozzle, which controls the opening of a valve with which the container is equipped then filled with a gas under pressure to propel the fluid to be distributed through the nozzle, or which implements means for pumping the fluid.
  • the path traveled by the fluid, from the reservoir, to the dispensing nozzle comprises numerous pressure drops, due to sudden changes in section and / or direction, accompanied by successive compressions and depressions for the fluid to be dispensed.
  • the dispensing nozzle comprises a dispensing channel which extends around the axis of the nozzle and is supplied, from the reservoir, by a supply duct whose axis forms a angle with the axis of the nozzle, this angle most often being straight.
  • the present invention aims to minimize the pressure losses of the path traveled by the fluid, from the reservoir to the outlet orifice of the nozzle.
  • a dispensing nozzle comprising at least one outlet orifice disposed along the axis of said nozzle, a dispensing channel extending around the axis and being supplied with fluid to be dispensed by a conduit d axis supply, the axis of the nozzle and the axis of the conduit forming an angle between them, the supply of the distribution channel by the conduit being effected tangentially with respect to said channel, the distribution channel being formed between, on the one hand, the periphery of a centering core carried by a support equipped with said dispensing nozzle, and, on the other hand, a bore, centered on the axis, and carried by said support, said bore communicating, at one of its ends, with the duct and, at its other end, with the outlet orifice, is characterized in that the bore has a shape complementary to that of the centering core and is located at a distance therefrom.
  • the centering core is mounted without transverse play in the bore, the distribution channel being hollowed out at the interface between the core and the bore and extending helically.
  • the centering core is mounted with transverse play in the bore, the distribution channel being constituted by the space defined by said transverse play.
  • a partition connects the centering core to the internal face of the bore, at least in the part of the channel closest to the supply conduit, so as to prevent the fluid from rotating on it. even and to give it an axial component of movement towards the outlet.
  • the centering core can be cylindrical, over at least part of its length, and / or conical, converging towards the outlet orifice; it can also be in the form of a warhead whose cross section decreases regularly towards the outlet orifice.
  • the supply duct is connected tangentially to the distribution channel by a progressive connection portion of the sections, respectively, of the supply duct and the distribution channel; alternatively, the sections of the duct and the channel are equal.
  • the axes of the dispensing nozzle and the supply duct are orthogonal.
  • the dispensing nozzle comprises two outlet orifices and two dispensing channels supplied by a single supply duct; advantageously, the sum of the sections of the two distribution channels is equal to the section of the supply duct.
  • a dispensing nozzle consists of a centering core 3 of generally cylindrical shape, mounted without transverse play inside a bore 10 carried by a support 1 , for example a push button fitted with said nozzle; the bore 10 is the internal bore of a sleeve 2 secured to the push button 1 in a bore 13 thereof open to the outside; the centering core 3, the sleeve 2 and the bore 13, all three of revolution, have a common axis 20.
  • the sleeve 2 has, at its end close to the outside, a bottom, the inner face 11 of which is conical shape, pierced with an outlet orifice 6 along the axis 20, said orifice 6 consisting of a cylindrical nozzle opening to the outside in a part of divergent conical shape; facing the conical interior face 11 of the bottom of the sleeve 2, the end of the centering core 3 has a frustoconical part, designated by the reference 12 in the figure, connected to a plane face perpendicular to the axis 20 and located at a distance from orifice 6.
  • a distribution channel 4 extending in a helical manner: designated by 4 a the first turn of the helix which constitutes the channel 4, with reference to the direction of flow of the fluid, as will be seen below, and by 4 n the last turn; the coil 4 n ends at the right of the frustoconical part 12 of the end of the core 3; 4 has the first turn originates at the opposite end of the core 3 (relative to the end of said core 3 which faces the orifice 6) extending outside the bore 10 of the sleeve 2 , so that an annular chamber 8, of axis 20, is defined by the core 3, the sleeve 2 and the support 1; the coil 4 has communication with the interior of the chamber 8.
  • the support 1 carries, as is known, a control rod 5, of axis 15, intended for the actuation of conventional distribution means, such as, for example, a distribution valve, or a distribution pump, making it possible to lead the fluid to be dispensed, from the container, to the outlet orifice 6 through a supply duct 7, which passes through the rod 5, and the dispensing channel 4.
  • conventional distribution means such as, for example, a distribution valve, or a distribution pump
  • the axes 20 and 15, respectively of the nozzle and of the conduit 7, are orthogonal.
  • the conduit 7 opens into the annular chamber 8 through a portion 7 a , tangential to said chamber 8; the arrangement is such that the rotation of the fluid, due to its tangential arrival in the chamber 8, corresponds to the direction of winding of the propeller represented by the helical distribution channel 4: thus, this rotation of the fluid is kept until the fluid leaves the dispensing nozzle.
  • the nozzle according to the invention minimizes the pressure drops along the path traveled by the fluid, despite the orthogonal arrangement of the axes 20 and 15: in a simple application of the invention, the axis 20 is at a distance of axis 15, as can be seen in FIG. 5, on which this distance has been exaggerated, on the scale of this figure. While minimizing, as we have just seen, the pressure drops, the nozzle according to the invention also makes it possible to give the fluid a swirling movement which, as is known, promotes good distribution.
  • the variant nozzle according to the invention, of FIG. 2, comprises a centering core 3, of axis 20, which has a cylindrical part and a conical part, both adjusted in the bore 10 having portions of matching shapes, respectively 10 b and 10 a, formed directly in the pushbutton, the conical portion 10a opening to the outside according to orifice 6.
  • the helical channel 4 distribution is, again, hollowed out on the outer surface of the core 3; the turns of the channel 4 which extend along the conical portion 10 a gradually approach the axis 20 towards the orifice 6, this leading to a further reduction in pressure losses.
  • the section of the channel 4 has the first turn begins at the right of the portion 7a of the duct 7 which allows the connection of said duct 7 to the channel 4; according to this variant, the section of the channel 4 gradually decreases from the turn 4 a to the last turn which opens into the conical portion 10 a in line with the channel 6: this gradual decrease in the section of the channel 4 makes it possible to compress the fluid gradually, which improves the distribution.
  • the part 7 a of connection of the channel 7 allows progressively to pass from the section of the conduit 7 to that of the coil 4 a , as seen in FIG. 2a.
  • the section of the duct 7 is equal to that of the first turn 4 a .
  • the distribution channel 4 is hollowed out at the interface between the core 3 and the bore 10, and extends in a helical manner.
  • the centering core is mounted in the bore with a transverse clearance, the distribution channel being constituted by said transverse clearance.
  • the push-button 1 carries a core 3 of revolution in the shape of a warhead whose cross section decreases regularly towards the outlet orifice 6 formed in the bottom of a sleeve 2 a secured to the push button 1 and whose internal bore 10 c has a shape complementary to that of the external face of the ogival core 3 and is located at a distance therefrom: the clearance thus created between the core 3 and the sleeve 2 a constitutes the distribution channel 4; seen in Figure 4, indicated by 4a, the primer a coil in the zone where the portion 7a of the duct 7 joins the channel 4; a partial partition 14, connecting the centering core 3 to the bore 10 c , is arranged so as to prevent the fluid from rotating on itself and to give it an axial component of movement towards the orifice: thus, the particles of the fluid have a generally helical movement towards the outlet, around the axis 20, without it being necessary to materialize a helical outlet channel.
  • the dispensing nozzle is double, that is to say that it has two outlet orifices, with axes 201 and 202; the left half-nozzle of FIG. 6 is shown, in section, in FIG. 7 where one of the two orifices is seen, the orifice 61.
  • Each half-nozzle comprises a cylindrical centering core 31, carried by the push button 1, and mounted, with a transverse play, in a bore designated as a whole by the reference 100; said transverse clearance constitutes the distribution channel 41 (the channel of the other half-nozzle is designated by the reference 42 in FIG. 6).
  • Part of the bore 100 is produced in the push-button and comprises a portion 171 of initiating the turn, in line with the part 71 for connecting the duct 7 to the channel 41, and a deflecting portion 181; the portions 171 and 181 allow, in combination with the partition 141 (the reference 142 designates in FIG. 6 the corresponding partition of the other half-nozzle), to put the fluid in rotation and to give it an axial component of movement towards the outlet.
  • the supply duct 7 is extended in two parts 71, 72, for connection to the distribution channels 41, 42, separated by a partition 19; preferably, the section of the duct 7 is equal to the sum of the maximum sections of the channels 41, 42.
  • the other part of the bore 100 is constituted by the internal surface of a sleeve 21, the bottom of which carries the orifice 61; this internal surface has a conical portion 161, compressing the fluid before it leaves.
  • Figure 8 is similar to that of Figures 6 and 7 but the core 31 is of ogival shape and the bore 100c of the sleeve 21 has a similar shape.

Abstract

Dispensing nozzle comprising at least one outlet orifice (6) arranged along the axis (20) of the said nozzle, a dispensing channel (4, 41, 42) extending around the axis (20) and being supplied with fluid to be dispensed via a supply conduit (7) of axis (15), the axis (20) of the nozzle and the axis (15) of the conduit (7) making an angle between them, the supply of the dispensing channel (4, 41, 42) via the conduit (7) taking place tangentially in relation to the said channel (4, 41, 42) which is provided between, on the one hand, the periphery of a centering core (3, 31) carried by a support (1) equipped with the said dispensing nozzle, and, on the other hand, a bore (10, 10c, 100, 100c) centred on the axis (20) and carried by the said support, the said bore (10, 10c, 100, 100c) communicating, at one of its ends, with the conduit (7) and, at its other end, with the outlet orifice (6), and having a shape matching that of the centering core (3, 31) which is located at some distance from the latter. <IMAGE>

Description

La présente invention a pour objet une buse de distribution, pour la distribution d'un fluide contenu dans un récipient.The present invention relates to a dispensing nozzle, for dispensing a fluid contained in a container.

D'une manière générale, les buses de distribution, munies d'un orifice de sortie pour le fluide à distribuer, sont traversées par ce fluide à la suite d'une action de l'utilisateur : cette action est, par exemple, une pression exercée sur les parois du récipient alors prévu souple, ou l'actionnement d'un support, équipé de la buse, qui commande l'ouverture d'une valve dont est équipé le récipient alors rempli d'un gaz sous pression pour propulser le fluide à distribuer au travers de la buse, ou qui met en oeuvre des moyens de pompage du fluide. Jusqu'ici, dans tous ces cas, le trajet parcouru par le fluide, depuis le réservoir, jusqu'à la buse de distribution, comporte de nombreuses pertes de charges, dues à des changements brutaux de section et/ou de direction, accompagnées de compressions et dépressions successives pour le fluide à distribuer. C'est le cas, notamment, lorsque la buse de distribution comporte un canal de distribution qui s'étend autour de l'axe de la buse et est alimenté, depuis le réservoir, par un conduit d'alimentation dont l'axe fait un angle avec l'axe de la buse, cet angle étant le plus souvent droit.Generally, the dispensing nozzles, provided with an outlet orifice for the fluid to be dispensed, are traversed by this fluid following a user action: this action is, for example, a pressure exerted on the walls of the container then provided flexible, or the actuation of a support, equipped with the nozzle, which controls the opening of a valve with which the container is equipped then filled with a gas under pressure to propel the fluid to be distributed through the nozzle, or which implements means for pumping the fluid. So far, in all these cases, the path traveled by the fluid, from the reservoir, to the dispensing nozzle, comprises numerous pressure drops, due to sudden changes in section and / or direction, accompanied by successive compressions and depressions for the fluid to be dispensed. This is the case, in particular, when the dispensing nozzle comprises a dispensing channel which extends around the axis of the nozzle and is supplied, from the reservoir, by a supply duct whose axis forms a angle with the axis of the nozzle, this angle most often being straight.

La présente invention a pour but de minimiser les pertes de charges du trajet parcouru par le fluide, depuis le réservoir jusqu'à l'orifice de sortie de la buse.The present invention aims to minimize the pressure losses of the path traveled by the fluid, from the reservoir to the outlet orifice of the nozzle.

Ainsi, selon l'invention, une buse de distribution comportant au moins un orifice de sortie disposé selon l'axe de ladite buse, un canal de distribution s'étendant autour de l'axe et étant alimenté en fluide à distribuer par un conduit d'alimentation d'axe, l'axe de la buse et l'axe du conduit faisant un angle entre-eux, l'alimentation du canal de distribution par le conduit s'effectuant tangentiellement par rapport audit canal, le canal de distribution étant ménagé entre, d'une part, la périphérie d'un noyau de centrage porté par un support équipé de ladite buse de distribution, et, d'autre part, un alésage, centré sur l'axe, et porté par ledit support, ledit alésage communiquant, à l'une de ses extrémités, avec le conduit et, à son autre extrémité, avec l'orifice de sortie, est caractérisée par le fait que l'alésage a une forme complémentaire de celle du noyau de centrage et est situé à distance de celui-ci.Thus, according to the invention, a dispensing nozzle comprising at least one outlet orifice disposed along the axis of said nozzle, a dispensing channel extending around the axis and being supplied with fluid to be dispensed by a conduit d axis supply, the axis of the nozzle and the axis of the conduit forming an angle between them, the supply of the distribution channel by the conduit being effected tangentially with respect to said channel, the distribution channel being formed between, on the one hand, the periphery of a centering core carried by a support equipped with said dispensing nozzle, and, on the other hand, a bore, centered on the axis, and carried by said support, said bore communicating, at one of its ends, with the duct and, at its other end, with the outlet orifice, is characterized in that the bore has a shape complementary to that of the centering core and is located at a distance therefrom.

Selon une réalisation, le noyau de centrage est monté sans jeu transversal dans l'alésage, le canal de distribution étant creusé à l'interface entre le noyau et l'alésage et s'étendant de manière hélicoïdale.According to one embodiment, the centering core is mounted without transverse play in the bore, the distribution channel being hollowed out at the interface between the core and the bore and extending helically.

Selon une variante, le noyau de centrage est monté avec jeu transversal dans l'alésage, le canal de distribution étant constitué par l'espace défini par ledit jeu transversal. Dans une forme particulière de réalisation, un cloisonnement relie le noyau de centrage à la face intérieure de l'alésage, au moins dans la partie du canal la plus proche du conduit d'alimentation, de manière à empêcher le fluide de tourner sur lui-même et à lui conférer une composante axiale de mouvement vers l'orifice de sortie.According to a variant, the centering core is mounted with transverse play in the bore, the distribution channel being constituted by the space defined by said transverse play. In a particular embodiment, a partition connects the centering core to the internal face of the bore, at least in the part of the channel closest to the supply conduit, so as to prevent the fluid from rotating on it. even and to give it an axial component of movement towards the outlet.

Le noyau de centrage peut être cylindrique, sur au moins une partie de sa longueur, et/ou conique, convergent vers l'orifice de sortie ; il peut, également, être en forme d'ogive dont la section transversale décroit régulièrement vers l'orifice de sortie.The centering core can be cylindrical, over at least part of its length, and / or conical, converging towards the outlet orifice; it can also be in the form of a warhead whose cross section decreases regularly towards the outlet orifice.

Avantageusement, le conduit d'alimentation se raccorde tangentiellement au canal de distribution par une portion de raccordement progressif des sections, respectivement, du conduit d'alimentation et du canal de distribution ; en variante, les sections du conduit et du canal sont égales.Advantageously, the supply duct is connected tangentially to the distribution channel by a progressive connection portion of the sections, respectively, of the supply duct and the distribution channel; alternatively, the sections of the duct and the channel are equal.

De préférence, les axes de la buse de distribution et du conduit d'alimentation sont orthogonaux.Preferably, the axes of the dispensing nozzle and the supply duct are orthogonal.

Selon une autre variante de réalisation, la buse de distribution comprend deux orifices de sortie et deux canaux de distribution alimentés par un seul conduit d'alimentation ; avantageusement, la somme des sections des deux canaux de distribution est égale à la section du conduit d'alimentation.According to another alternative embodiment, the dispensing nozzle comprises two outlet orifices and two dispensing channels supplied by a single supply duct; advantageously, the sum of the sections of the two distribution channels is equal to the section of the supply duct.

Pour mieux faire comprendre l'objet de l'invention, on va décrire ci-après, à titre purement illustratif et non limitatif, des modes de réalisation représentés sur les dessins annexés.To better understand the object of the invention, there will be described below, purely by way of non-limiting illustration, embodiments shown in the accompanying drawings.

Sur ces dessins :

  • la figure 1 représente, en coupe, une première variante de buse de distribution, selon l'invention ;
  • la figure 2 représente, en coupe, une deuxième variante de buse de distribution, selon l'invention ;
  • la figure 2a est une coupe partielle, du support 1, seul, selon II-II, de la figure 2 ;
  • les figures 3 et 4 représentent, en coupes partielles, une troisième variante de buse de distribution selon l'invention : la figure 3 est une coupe partielle, selon III-III de la figure 4, à plus grande échelle, et, la figure 4, une coupe selon IV-IV de la figure 3 ;
  • la figure 5 est, à petite échelle, la vue de face de la partie supérieure d'un récipient équipé d'un support portant une buse de distribution selon l'invention ;
  • la figure 6 représente en coupe, une quatrième variante de buse de distribution selon l'invention ;
  • la figure 7 est une coupe partielle de la buse de la figure 6, selon VII-VII de cette figure ;
  • la figure 8 représente, en coupe, une cinquième variante de buse selon l'invention.
In these drawings:
  • Figure 1 shows, in section, a first variant of the dispensing nozzle according to the invention;
  • 2 shows, in section, a second variant of the dispensing nozzle, according to the invention;
  • Figure 2a is a partial section of the support 1, only, according to II-II, of Figure 2;
  • Figures 3 and 4 show, in partial sections, a third variant of the dispensing nozzle according to the invention: Figure 3 is a partial section, along III-III of Figure 4, on a larger scale, and, Figure 4 , a section on IV-IV of Figure 3;
  • Figure 5 is, on a small scale, the front view of the upper part of a container equipped with a support carrying a dispensing nozzle according to the invention;
  • 6 shows in section, a fourth variant of the dispensing nozzle according to the invention;
  • Figure 7 is a partial section of the nozzle of Figure 6, along VII-VII of this figure;
  • FIG. 8 shows, in section, a fifth variant of a nozzle according to the invention.

En se reportant à la figure 1, une buse de distribution, selon l'invention, est constituée d'un noyau de centrage 3 de forme générale cylindrique, monté sans jeu transversal à l'intérieur d'un alésage 10 porté par un support 1, par exemple un bouton-poussoir équipé de ladite buse ; l'alésage 10 est l'alésage intérieur d'un manchon 2 solidarisé au bouton-poussoir 1 dans un alésage 13 de celui-ci ouvert à l'extérieur ; le noyau de centrage 3, le manchon 2 et l'alésage 13, tous trois de révolution, ont un axe commun 20. Le manchon 2 comporte, à son extrémité voisine de l'extérieur, un fond, dont la face intérieure 11 est de forme conique, percé d'un orifice de sortie 6 selon l'axe 20, ledit orifice 6 étant constitué d'un ajutage cylindrique débouchant à l'extérieur suivant une partie de forme conique divergente ; en regard de la face intérieure de forme conique 11 du fond du manchon 2, l'extrémité du noyau de centrage 3 a une partie tronconique, désignée par le repère 12 sur la figure, raccordée à une face plane perpendiculaire à l'axe 20 et située à distance de l'orifice 6.Referring to Figure 1, a dispensing nozzle, according to the invention, consists of a centering core 3 of generally cylindrical shape, mounted without transverse play inside a bore 10 carried by a support 1 , for example a push button fitted with said nozzle; the bore 10 is the internal bore of a sleeve 2 secured to the push button 1 in a bore 13 thereof open to the outside; the centering core 3, the sleeve 2 and the bore 13, all three of revolution, have a common axis 20. The sleeve 2 has, at its end close to the outside, a bottom, the inner face 11 of which is conical shape, pierced with an outlet orifice 6 along the axis 20, said orifice 6 consisting of a cylindrical nozzle opening to the outside in a part of divergent conical shape; facing the conical interior face 11 of the bottom of the sleeve 2, the end of the centering core 3 has a frustoconical part, designated by the reference 12 in the figure, connected to a plane face perpendicular to the axis 20 and located at a distance from orifice 6.

A l'interface entre le noyau 3 et l'alésage 10, plus précisément sur la face extérieure cylindrique 9 du noyau 3, est creusé un canal de distribution 4 s'étendant de manière hélicoïdale : on a désigné par 4a la première spire, de l'hélice qui constitue le canal 4, en se référant au sens de l'écoulement du fluide, comme on le verra ci-après, et par 4n la dernière spire ; la spire 4n se termine au droit de la partie tronconique 12 de l'extrémité du noyau 3 ; la première spire 4a prend naissance à l'extrémité opposée du noyau 3 (par rapport à l'extrémité dudit noyau 3 qui fait face à l'orifice 6) qui s'étend à l'extérieur de l'alésage 10 du manchon 2, de sorte qu'une chambre annulaire 8, d'axe 20, est définie par le noyau 3, le manchon 2 et le support 1 ; la spire 4a communique avec l'intérieur de la chambre 8.At the interface between the core 3 and the bore 10, more precisely on the cylindrical outer face 9 of the core 3, is hollowed out a distribution channel 4 extending in a helical manner: designated by 4 a the first turn of the helix which constitutes the channel 4, with reference to the direction of flow of the fluid, as will be seen below, and by 4 n the last turn; the coil 4 n ends at the right of the frustoconical part 12 of the end of the core 3; 4 has the first turn originates at the opposite end of the core 3 (relative to the end of said core 3 which faces the orifice 6) extending outside the bore 10 of the sleeve 2 , so that an annular chamber 8, of axis 20, is defined by the core 3, the sleeve 2 and the support 1; the coil 4 has communication with the interior of the chamber 8.

Le support 1 porte, comme cela est connu, une tige de commande 5, d'axe 15, destinée à l'actionnement de moyens de distribution classiques, comme, par exemple, une valve de distribution, ou une pompe de distribution, permettant de conduire le fluide à distribuer, depuis le récipient, vers l'orifice de sortie 6 à travers un conduit d'alimentation 7, qui traverse la tige 5, et le canal de distribution 4.The support 1 carries, as is known, a control rod 5, of axis 15, intended for the actuation of conventional distribution means, such as, for example, a distribution valve, or a distribution pump, making it possible to lead the fluid to be dispensed, from the container, to the outlet orifice 6 through a supply duct 7, which passes through the rod 5, and the dispensing channel 4.

Comme cela est visible sur la figure 1, les axes 20 et 15, respectivement de la buse et du conduit 7, sont orthogonaux. Le conduit 7 débouche dans la chambre annulaire 8 par une portion 7a, tangentiellement à ladite chambre 8 ; la disposition est telle que la mise en rotation du fluide, due à son arrivée tangentielle dans la chambre 8, correspond au sens d'enroulement de l'hélice représentée par le canal de distribution hélicoïdal 4 : ainsi, cette mise en rotation du fluide est conservée jusqu'à la sortie du fluide de la buse de distribution.As can be seen in FIG. 1, the axes 20 and 15, respectively of the nozzle and of the conduit 7, are orthogonal. The conduit 7 opens into the annular chamber 8 through a portion 7 a , tangential to said chamber 8; the arrangement is such that the rotation of the fluid, due to its tangential arrival in the chamber 8, corresponds to the direction of winding of the propeller represented by the helical distribution channel 4: thus, this rotation of the fluid is kept until the fluid leaves the dispensing nozzle.

La buse, selon l'invention, minimise les pertes de charge tout au long du chemin parcouru par le fluide, malgré la disposition orthogonale des axes 20 et 15 : dans une application simple de l'invention, l'axe 20 est à distance de l'axe 15, comme on peut le voir sur la figure 5, sur laquelle cette distance a été exagérée, à l'échelle de cette figure. Tout en minimisant, comme on vient de le voir, les pertes de charges, la buse selon l'invention permet, en outre, de conférer au fluide un mouvement tourbillonnaire qui, comme on le sait, favorise une bonne distribution.The nozzle according to the invention minimizes the pressure drops along the path traveled by the fluid, despite the orthogonal arrangement of the axes 20 and 15: in a simple application of the invention, the axis 20 is at a distance of axis 15, as can be seen in FIG. 5, on which this distance has been exaggerated, on the scale of this figure. While minimizing, as we have just seen, the pressure drops, the nozzle according to the invention also makes it possible to give the fluid a swirling movement which, as is known, promotes good distribution.

La variante de buse, selon l'invention, de la figure 2, comporte un noyau de centrage 3, d'axe 20, qui présente une partie cylindrique et une partie conique, toutes deux ajustées dans l'alésage 10 qui présente des portions de formes correspondantes, respectivement 10b et 10a, ménagées directement dans le bouton-poussoir, la portion conique 10a débouchant à l'extérieur selon l'orifice 6. Le canal hélicoïdal 4 de distribution est, là aussi, creusé à la surface extérieure du noyau 3 ; les spires du canal 4 qui s'étendent le long de la portion conique 10a se rapprochent progressivement de l'axe 20 vers l'orifice 6, ceci conduisant à une réduction supplémentaire des pertes de charge. La première spire 4a prend naissance au droit de la partie 7a du conduit 7 qui permet le raccordement dudit conduit 7 au canal 4 ; selon cette variante, la section du canal 4 diminue progressivement depuis la spire 4a jusqu'à la dernière spire qui débouche dans la portion conique 10a au droit du canal 6 : cette diminution progressive de la section du canal 4 permet de comprimer le fluide progressivement, ce qui améliore la distribution.The variant nozzle, according to the invention, of FIG. 2, comprises a centering core 3, of axis 20, which has a cylindrical part and a conical part, both adjusted in the bore 10 having portions of matching shapes, respectively 10 b and 10 a, formed directly in the pushbutton, the conical portion 10a opening to the outside according to orifice 6. The helical channel 4 distribution is, again, hollowed out on the outer surface of the core 3; the turns of the channel 4 which extend along the conical portion 10 a gradually approach the axis 20 towards the orifice 6, this leading to a further reduction in pressure losses. 4 has the first turn begins at the right of the portion 7a of the duct 7 which allows the connection of said duct 7 to the channel 4; according to this variant, the section of the channel 4 gradually decreases from the turn 4 a to the last turn which opens into the conical portion 10 a in line with the channel 6: this gradual decrease in the section of the channel 4 makes it possible to compress the fluid gradually, which improves the distribution.

La partie 7a de raccordement du canal 7 permet progressivement de passer de la section du conduit 7 à celle de la spire 4a, comme on le voit sur la figure 2a. Dans une variante non représentée, la section du conduit 7 est égale à celle de la première spire 4a.The part 7 a of connection of the channel 7 allows progressively to pass from the section of the conduit 7 to that of the coil 4 a , as seen in FIG. 2a. In a variant not shown, the section of the duct 7 is equal to that of the first turn 4 a .

Dans les variantes précédentes, le canal de distribution 4 est creusé à l'interface entre le noyau 3 et l'alésage 10, et s'étend de manière hélicoïdale. Dans les variantes qui vont être décrites maintenant, le noyau de centrage est monté dans l'alésage avec un jeu transversal, le canal de distribution étant constitué par ledit jeu transversal.In the previous variants, the distribution channel 4 is hollowed out at the interface between the core 3 and the bore 10, and extends in a helical manner. In the variants which will now be described, the centering core is mounted in the bore with a transverse clearance, the distribution channel being constituted by said transverse clearance.

Ainsi, selon la variante des figures 3 et 4, le bouton-poussoir 1 porte un noyau 3 de révolution en forme d'ogive dont la section transversale décroit régulièrement vers l'orifice de sortie 6 ménagé dans le fond d'un manchon 2a solidarisé au bouton-poussoir 1 et dont l'alésage interne 10c a une forme complémentaire de celle de la face extérieure du noyau 3 ogival et est située à distance de celle-ci : le jeu ainsi créé entre le noyau 3 et le manchon 2a constitue le canal de distribution 4 ; on voit sur la figure 4, repérée par 4a, l'amorce d'une spire dans la zone où la partie 7a du conduit 7 rejoint le canal 4 ; un cloisonnement partiel 14, reliant le noyau de centrage 3 à l'alésage 10c, est agencé de manière à empêcher le fluide de tourner sur lui-même et à lui conférer une composante axiale de mouvement vers l'orifice : ainsi, les particules du fluide ont un mouvement généralement hélicoïdal vers la sortie, autour de l'axe 20, sans qu'il soit nécessaire de matérialiser un canal de sortie hélicoïdal.Thus, according to the variant of FIGS. 3 and 4, the push-button 1 carries a core 3 of revolution in the shape of a warhead whose cross section decreases regularly towards the outlet orifice 6 formed in the bottom of a sleeve 2 a secured to the push button 1 and whose internal bore 10 c has a shape complementary to that of the external face of the ogival core 3 and is located at a distance therefrom: the clearance thus created between the core 3 and the sleeve 2 a constitutes the distribution channel 4; seen in Figure 4, indicated by 4a, the primer a coil in the zone where the portion 7a of the duct 7 joins the channel 4; a partial partition 14, connecting the centering core 3 to the bore 10 c , is arranged so as to prevent the fluid from rotating on itself and to give it an axial component of movement towards the orifice: thus, the particles of the fluid have a generally helical movement towards the outlet, around the axis 20, without it being necessary to materialize a helical outlet channel.

Selon la variante des figures 6 et 7, la buse de distribution est double, c'est-à-dire qu'elle présente deux orifices de sortie, d'axes 201 et 202 ; la demi-buse de gauche de la figure 6 est montrée, en coupe, sur la figure 7 où l'on voit l'un des deux orifices, l'orifice 61. Chaque demi-buse comprend un noyau de centrage cylindrique 31, porté par le bouton-poussoir 1, et monté, avec un jeu transversal, dans un alésage désigné dans son ensemble par le repère 100 ; ledit jeu transversal constitue le canal de distribution 41 (le canal de l'autre demi-buse est désigné par le repère 42 sur la figure 6). Une partie de l'alésage 100 est réalisée dans le bouton-poussoir et comporte une portion 171 d'amorce de spire, au droit de la partie 71 de raccordement du conduit 7 au canal 41, et une portion 181 déflectrice ; les portions 171 et 181 permettent, en combinaison avec la cloison 141 (le repère 142 désigne sur la figure 6 la cloison correspondante de l'autre demi-buse), de mettre le fluide en rotation et de lui conférer une composante axiale de mouvement vers l'orifice de sortie. Le conduit d'alimentation 7 est prolongé selon deux parties 71, 72, de raccordement aux canaux de distribution 41, 42, séparées par une cloison 19 ; de préférence, la section du conduit 7 est égale à la somme des sections maximales des canaux 41, 42.According to the variant of Figures 6 and 7, the dispensing nozzle is double, that is to say that it has two outlet orifices, with axes 201 and 202; the left half-nozzle of FIG. 6 is shown, in section, in FIG. 7 where one of the two orifices is seen, the orifice 61. Each half-nozzle comprises a cylindrical centering core 31, carried by the push button 1, and mounted, with a transverse play, in a bore designated as a whole by the reference 100; said transverse clearance constitutes the distribution channel 41 (the channel of the other half-nozzle is designated by the reference 42 in FIG. 6). Part of the bore 100 is produced in the push-button and comprises a portion 171 of initiating the turn, in line with the part 71 for connecting the duct 7 to the channel 41, and a deflecting portion 181; the portions 171 and 181 allow, in combination with the partition 141 (the reference 142 designates in FIG. 6 the corresponding partition of the other half-nozzle), to put the fluid in rotation and to give it an axial component of movement towards the outlet. The supply duct 7 is extended in two parts 71, 72, for connection to the distribution channels 41, 42, separated by a partition 19; preferably, the section of the duct 7 is equal to the sum of the maximum sections of the channels 41, 42.

L'autre partie de l'alésage 100 est constituée par la surface interne d'un manchon 21, dont le fond porte l'orifice 61 ; cette surface interne présente une partie conique 161, comprimant le fluide avant sa sortie.The other part of the bore 100 is constituted by the internal surface of a sleeve 21, the bottom of which carries the orifice 61; this internal surface has a conical portion 161, compressing the fluid before it leaves.

La variante de la figure 8 est analogue à celle des figures 6 et 7 mais le noyau 31 est de forme ogivale et l'alésage 100c du manchon 21 a une forme analogue.The variant of Figure 8 is similar to that of Figures 6 and 7 but the core 31 is of ogival shape and the bore 100c of the sleeve 21 has a similar shape.

Claims (12)

1 - Buse de distribution comportant au moins un orifice de sortie (6) dispose selon l'axe (20) de ladite buse, un canal de distribution (4, 41, 42) s'étendant autour de l'axe (20) et étant alimenté en fluide à distribuer par un conduit d'alimentation (7) d'axe (15), l'axe (20) de la buse et l'axe (15) du conduit (7) faisant un angle entre-eux, l'alimentation du canal de distribution (4, 41, 42) par le conduit (7) s'effectuant tangentiellement par rapport audit canal (4, 41, 42), le canal de distribution (4, 41, 42) étant ménagé entre, d'une part, la périphérie d'un noyau de centrage (3, 31) porte par un support (1) équipé de ladite buse de distribution, et, d'autre part, un alésage (10, 10c, 100, 100c), centre sur l'axe (20), et porté par ledit support, ledit alésage (10, 10c, 100, 100c) communiquant, à l'une de ses extrémités, avec le conduit (7) et, à son autre extrémité, avec l'orifice de sortie (6), caractérisée par le fait que l'alésage (10, 10c, 100, 100c) a une forme complémentaire de celle du noyau de centrage (3, 31) et est situé à distance de celui-ci. 1 - Distribution nozzle comprising at least one outlet orifice (6) has, along the axis (20) of said nozzle, a distribution channel (4, 41, 42) extending around the axis (20) and being supplied with fluid to be distributed by a supply conduit (7) with an axis (15), the axis (20) of the nozzle and the axis (15) of the conduit (7) making an angle between them, the supply of the distribution channel (4, 41, 42) by the conduit (7) taking place tangentially with respect to said channel (4, 41, 42), the distribution channel (4, 41, 42) being formed between , on the one hand, the periphery of a centering core (3, 31) carried by a support (1) fitted with said distribution nozzle, and, on the other hand, a bore (10, 10 c , 100, 100 c ), center on the axis (20), and carried by said support, said bore (10, 10 c , 100, 100 c ) communicating, at one of its ends, with the conduit (7) and, at its other end, with the outlet orifice (6), characterized in that the bore (10, 10 c , 1 00, 100 c ) has a shape complementary to that of the centering core (3, 31) and is located at a distance therefrom. 2 - Buse de distribution selon la revendication 1, caractérisée par le fait que le noyau de centrage (3) est monté sans jeu transversal dans l'alésage (10), le canal (4) étant creusé à l'interface entre le noyau (3) et l'alésage (10) et s'étendant de manière hélicoïdale. 2 - Dispensing nozzle according to claim 1, characterized in that the centering core (3) is mounted without transverse play in the bore (10), the channel (4) being hollowed out at the interface between the core ( 3) and the bore (10) and extending helically. 3 - Buse de distribution selon la revendication 1, caractérisée par le fait que le noyau de centrage (3, 31) est monté avec jeu transversal dans l'alésage (10c, 100, 100c), le canal (4, 41, 42) étant constitué par l'espace défini par ledit jeu transversal. 3 - Dispensing nozzle according to claim 1, characterized in that the centering core (3, 31) is mounted with transverse play in the bore (10 c , 100, 100 c ), the channel (4, 41, 42) being constituted by the space defined by said transverse play. 4 - Buse de distribution selon la revendication 3, caractérisée par le fait qu'un cloisonnement (14, 141, 142) relie le noyau de centrage (3, 31) à la face intérieure de l'alésage (10c, 100, 100c) au moins dans la partie du canal (4, 41, 42) la plus proche du conduit (7) d'alimentation, de manière à empêcher le fluide de tourner sur lui-même et à lui conférer une composante axiale de mouvement vers l'orifice de sortie. 4 - Dispensing nozzle according to claim 3, characterized in that a partition (14, 141, 142) connects the centering core (3, 31) to the inner face of the bore (10c, 100, 100 c ) at least in the part of the channel (4, 41, 42) closest to the supply duct (7), so as to prevent the fluid from turning on itself and to give it an axial component of movement towards the outlet. 5 - Buse de distribution selon l'une des revendications 1 à 4, caractérisée par le fait que le noyau de centrage (3, 31) est cylindrique, sur au moins une partie de sa longueur. 5 - Dispensing nozzle according to one of claims 1 to 4, characterized in that the centering core (3, 31) is cylindrical, over at least part of its length. 6 - Buse de distribution selon l'une des revendications 1 à 4, caractérisée par le fait que le noyau de centrage (3) est conique, en convergeant vers l'orifice de sortie (6), sur au moins une partie de sa longueur. 6 - Dispensing nozzle according to one of claims 1 to 4, characterized in that the centering core (3) is conical, converging towards the outlet orifice (6), over at least part of its length . 7 - Buse de distribution selon l'une des revendications 1 à 4, caractérisée par le fait que le noyau de centrage (3, 31) est en forme d'ogive dont la section transversale décroit régulièrement vers l'orifice de sortie (6). 7 - Dispensing nozzle according to one of claims 1 to 4, characterized in that the centering core (3, 31) is in the form of an ogive whose cross section decreases regularly towards the outlet orifice (6) . 8 - Buse de distribution selon l'une des revendications 1 à 7, caractérisée par le fait que le conduit d'alimentation (7) se raccorde tangentiellement au canal de distribution (4, 41, 42) par une portion (7a) de raccordement progressif des sections, respectivement, du conduit (7) et du canal (4). 8 - Dispensing nozzle according to one of claims 1 to 7, characterized in that the feed duct (7) is connected tangentially to the distribution channel (4, 41, 42) by a portion (7 a) progressive connection of the sections, respectively, of the conduit (7) and the channel (4). 9 - Buse de distribution selon l'une des revendications 1 à 7, caractérisée par le fait que les sections du conduit (7) et du canal (4, 41, 42) sont égales. 9 - Dispensing nozzle according to one of claims 1 to 7, characterized in that the sections of the conduit (7) and the channel (4, 41, 42) are equal. 10 - Buse de distribution selon l'une des revendications 1 à 9, caractérisée par le fait que les axes (15) et (20), respectivement de la buse de distribution et du conduit d'alimentation (7), sont orthogonaux. 10 - Dispensing nozzle according to one of claims 1 to 9, characterized in that the axes (15) and (20), respectively of the dispensing nozzle and the supply duct (7), are orthogonal. 11 - Buse de distribution selon l'une des revendications 1 à 10, caractérisée par le fait qu'elle comprend deux orifices de sortie (6) et deux canaux de distribution (41, 42) alimentes par un seul conduit d'alimentation (7). 11 - Distribution nozzle according to one of claims 1 to 10, characterized in that it comprises two outlet openings (6) and two distribution channels (41, 42) supplied by a single supply conduit (7 ). 12 - Buse de distribution selon la revendication 11, caractérisée par le fait que la somme des sections des deux canaux de distribution (41, 42) est égale à la section du conduit d'alimentation (7). 12 - Distribution nozzle according to claim 11, characterized in that the sum of the sections of the two distribution channels (41, 42) is equal to the section of the supply duct (7).
EP93400679A 1992-03-20 1993-03-17 Fluid dispensing nozzle Expired - Lifetime EP0561697B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9203353A FR2688712A1 (en) 1992-03-20 1992-03-20 FLUID DISPENSING NOZZLE.
FR9203353 1992-03-20

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Publication Number Publication Date
EP0561697A1 true EP0561697A1 (en) 1993-09-22
EP0561697B1 EP0561697B1 (en) 1998-07-08

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Application Number Title Priority Date Filing Date
EP93400679A Expired - Lifetime EP0561697B1 (en) 1992-03-20 1993-03-17 Fluid dispensing nozzle

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EP (1) EP0561697B1 (en)
DE (1) DE69319473T2 (en)
ES (1) ES2118198T3 (en)
FR (1) FR2688712A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1543882A2 (en) 2003-12-17 2005-06-22 Lechler GmbH Nozzle for a conical jet

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR553280A (en) * 1922-06-24 1923-05-19 Yarnall Waring Co Improvements to water spray devices
FR669134A (en) * 1929-02-04 1929-11-12 Method and device for spraying liquids
GB419541A (en) * 1933-06-07 1934-11-14 Jack William Allen Improvements in or relating to spray jets and nozzles, more particularly for viscousliquids
US2358177A (en) * 1943-06-26 1944-09-12 Buffalo Forge Co Spray nozzle
FR1079441A (en) * 1953-06-19 1954-11-30 Uncouchable sprayer with helical feed boom
US2709623A (en) * 1952-11-24 1955-05-31 William B Glynn Water sprinkler head and system
FR1158992A (en) * 1956-10-05 1958-06-20 Device for spraying liquids
DE3432003A1 (en) * 1984-08-31 1986-03-06 Walter 5000 Köln Hartzheim Device for spraying fluids

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR553280A (en) * 1922-06-24 1923-05-19 Yarnall Waring Co Improvements to water spray devices
FR669134A (en) * 1929-02-04 1929-11-12 Method and device for spraying liquids
GB419541A (en) * 1933-06-07 1934-11-14 Jack William Allen Improvements in or relating to spray jets and nozzles, more particularly for viscousliquids
US2358177A (en) * 1943-06-26 1944-09-12 Buffalo Forge Co Spray nozzle
US2709623A (en) * 1952-11-24 1955-05-31 William B Glynn Water sprinkler head and system
FR1079441A (en) * 1953-06-19 1954-11-30 Uncouchable sprayer with helical feed boom
FR1158992A (en) * 1956-10-05 1958-06-20 Device for spraying liquids
DE3432003A1 (en) * 1984-08-31 1986-03-06 Walter 5000 Köln Hartzheim Device for spraying fluids

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1543882A2 (en) 2003-12-17 2005-06-22 Lechler GmbH Nozzle for a conical jet
EP1543882A3 (en) * 2003-12-17 2006-07-05 Lechler GmbH Nozzle for a conical jet
US7370815B2 (en) 2003-12-17 2008-05-13 Lechler Gmbh Cone nozzle

Also Published As

Publication number Publication date
ES2118198T3 (en) 1998-09-16
FR2688712B1 (en) 1995-06-02
FR2688712A1 (en) 1993-09-24
DE69319473D1 (en) 1998-08-13
EP0561697B1 (en) 1998-07-08
DE69319473T2 (en) 1999-04-15

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