EP1932595A1 - Sprühdüse, Verteilungsorgan, das eine solche Düse umfasst, Verteiler, der ein solches Organ umfasst, und Einsatz einer solchen Düse - Google Patents

Sprühdüse, Verteilungsorgan, das eine solche Düse umfasst, Verteiler, der ein solches Organ umfasst, und Einsatz einer solchen Düse Download PDF

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Publication number
EP1932595A1
EP1932595A1 EP07123074A EP07123074A EP1932595A1 EP 1932595 A1 EP1932595 A1 EP 1932595A1 EP 07123074 A EP07123074 A EP 07123074A EP 07123074 A EP07123074 A EP 07123074A EP 1932595 A1 EP1932595 A1 EP 1932595A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
outlet channel
spray nozzle
lateral surface
fluid
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
EP07123074A
Other languages
English (en)
French (fr)
Other versions
EP1932595B1 (de
Inventor
Jean-Pierre Songbe
Bernard Clerget
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.)
Albea Le Treport SAS
Original Assignee
Rexam Dispensing Systems SAS
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 Rexam Dispensing Systems SAS filed Critical Rexam Dispensing Systems SAS
Publication of EP1932595A1 publication Critical patent/EP1932595A1/de
Application granted granted Critical
Publication of EP1932595B1 publication Critical patent/EP1932595B1/de
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B05B1/3431—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
    • B05B1/3436—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 plane perpendicular 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
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle

Definitions

  • the invention relates to a spray nozzle, a dispensing member comprising such a nozzle, a dispenser comprising such a member and a use of such a nozzle.
  • a spray nozzle of this type is used to obtain at the output of the outlet channel, an outward distribution of the pressurized fluid in the form of an aerosol composed of individual droplets, and having a conical shape with an angle of determined spraying.
  • Such a spray nozzle is known in particular from the document EP-0 796 661 which provides projections formed on the lateral surface of a vortex chamber.
  • the lateral surface of the outlet channel disrupts uncontrollably the circulation of the fluid in the outlet channel. This results in an overall loss of charge for the fluid product and a decrease in the pressure with which the fluid product is entrained.
  • the fluid comes out of the spray nozzle in the form of an aerosol comprising droplets of various sizes, which can be large, and whose spray angle is reduced, for example up to 10 °, or even in the form of 'a jet.
  • the invention aims to solve the problems mentioned above.
  • the invention proposes a spray nozzle of the aforementioned type in which the relief comprises at least one recess provided on the lateral surface of the outlet channel and adapted to form a static surface layer of fluid product.
  • the recess allows for a coating of the lateral surface of the outlet channel with a layer of immobilized fluid product on which the remainder of the fluid can slide without friction.
  • the fluid product can be broken down into fine droplets and form an aerosol having the desired spray angle.
  • the subject of the invention is a dispensing member comprising a generally cylindrical body and a spray nozzle as defined above, the body comprising a housing having a stop surface, and a suitable feed channel.
  • the spray nozzle being disposed in the housing, the front wall defining the housing outwardly and coming into contact with the abutment surface, the upstream end of the supply conduit being in communication with the feed channel.
  • the reservoir may contain a fluid having a viscosity of less than or equal to 10 Pa.s at 20 ° C.
  • the invention relates to a use of a spray nozzle as defined above for spraying a fluid product which has a viscosity of less than or equal to 10 Pa.s at 20 ° C.
  • the figure 1 represents a distributor 1 for spraying a fluid product, that is to say the distribution of the fluid in the form of an aerosol 2 composed of individual droplets and of generally conical shape with a determined spray angle ⁇ .
  • the dispenser 1 comprises a reservoir 3 containing the fluid product.
  • the reservoir 3 may comprise a bottom and a generally cylindrical wall which extends around an axis 4 perpendicular to the bottom.
  • the reservoir 3 has an opening 5 provided opposite the bottom and delimited, for example, by a tubular neck 6 which extends substantially coaxially with the axis 4 of the reservoir 3.
  • a dispensing device 7 mounted in the opening 5 of the reservoir 3 is adapted to withdraw the fluid inside the reservoir 3 and deliver it under pressure to the outside.
  • the dispensing device 7 may comprise a tubular body 8 which extends along an axis 9 and a nozzle 10 mounted in the open upper end of the body 8.
  • the nozzle 10 is partially movable inside the body 8 in translation along the axis 9.
  • the lower end also open body 8 is in communication with the reservoir 3, for example by means of a tubular fixing wall 11 receiving a plunger tube 12 by fitting.
  • the dispensing device 7 may be manually operable.
  • the dispensing device 7 may be a valve mounted on the reservoir 3, which is then pressurized, and in which the nozzle 10 comprises at least one closable orifice that can be placed in communication with the inside of the body 8.
  • the device distribution 7 may be a pump comprising a compression chamber defined by an intake valve near the lower end of the body 8, an exhaust valve and a piston integral with the base of the nozzle 10 and movable sealingly inside the body 8.
  • the dispensing device 7 is fixed coaxially on the neck 6 of the reservoir 3.
  • the lower free end of the plunger tube 12 resting near the bottom of the reservoir 3 so as to put in communication with the reservoir 3, the nozzle 10 of which the the upper end protrudes from the opening 5 of the reservoir 3.
  • the nozzle 10 can thus deliver the fluid under a pressure, for example greater than 2 bar.
  • the reservoir 3 has a lower opening 5 and that the dispensing device 7 operates in an inverted manner, that is to say with the nozzle 10 which extends towards the bottom.
  • the plunger tube 12 is replaced by a suitable sampling device.
  • a fixing member fixes the dispensing device 7 to the reservoir 3.
  • the fixing member is a metal band 13 which is crimped, on the one hand, on a collar integral with the body 8 of the dispensing device, and, on the other hand, on a flange 14 of the neck 6. It can be provided to interpose a seal 15 between the upper surface of the neck 6 and a radial surface 16 of the hoop 13.
  • the attachment of the dispensing device 7 to the reservoir is not limited to this embodiment.
  • a dispensing member for example in the form of a push button 17, can be mounted on the upper end of the nozzle 10.
  • the push button 17 comprises a generally cylindrical body which extends along an axis 18.
  • the body has an upper actuating wall 19 which extends substantially radially with respect to the axis 18 of the push button 17 and from the edge of which a lateral skirt 20 extends along the axis 18 of the pushbutton 17.
  • the body of the pushbutton 17 may comprise a cylindrical housing 21 along an axis 22 generally perpendicular to the axis 18 of the pushbutton 17, formed in the lateral skirt 20 and having a stop surface .
  • a cylindrical stud 23 may extend coaxially with the axis 22 of the housing 21 so as to form inside the cylindrical housing 21 a substantially annular space 24.
  • the stud 23 presents a downstream end surface 27 forming the abutment surface which extends generally perpendicular to the axis 22 of the housing 21.
  • the push button 17 further comprises a supply channel in communication with the nozzle 10.
  • the supply channel may comprise, for example, an axial sleeve 25 which extends from the actuating wall 19 inside the nozzle. the skirt 20 along the axis 18 of the body, and a radial passage 26 generally perpendicular to the axis 18 of the body and whose upstream and downstream ends respectively open in the axial sleeve 25 and in the annular space 24 of the housing 21.
  • the lower end of the axial sleeve 25 may be sealingly attached, for example by fitting and / or snapping, on the upper end of the nozzle 10.
  • the supply channel makes it possible to supply the housing 21 with fluid under pressure delivered by the nozzle 10.
  • the axis 22 of the housing 21 and the feed channel may be parallel, whether or not merged, with the axis 18 of the dispenser member to enable dispensing axial fluid product.
  • the dispensing member may form a nozzle mounted on a dispensing device 7 or directly on the reservoir 3.
  • a spray nozzle 28 is disposed in the housing 21.
  • the spray nozzle 28 comprises a front wall 29 which has an upstream face 33 and a downstream face 34 and which delimits the housing 21 towards the outside.
  • the spray nozzle 28 also includes an outlet channel which extends through the end wall 28.
  • the outlet channel comprises an upstream section forming a swirl chamber 32 and a downstream section forming an outlet port 30.
  • the vortex chamber 32 is delimited by a front surface 32a formed on the upstream face 33 of the front wall 29 and a lateral surface 32b substantially of revolution about an axis A1 perpendicular to the front wall 29.
  • the lateral surface 32b the vortex chamber 32 may be substantially cylindrical and have a first cross section.
  • the outlet orifice 30 extends between an upstream end formed on the front surface 32a of the swirl chamber 32 and a downstream end formed on the downstream face 34 of the front wall 29 to open outwards.
  • the outlet orifice 30 is delimited by a lateral surface 30b substantially of revolution about an axis A2 perpendicular to the end wall 29.
  • the lateral surface 30b of the outlet orifice 30 may be substantially cylindrical and have a large diameter. second cross section of dimensions smaller than those of the first cross section.
  • lateral surface substantially of revolution is meant a surface generated by the displacement of a rectilinear generatrix, in the case of a cylindrical or frustoconical surface, or curve, parallel to the corresponding axis, along a closed directional curve , in particular a circle or an ellipse.
  • a substantially revolutional side surface also designates a such a surface presenting locally, as described below, singularities.
  • the section of the outlet orifice 30 is circular or elliptical.
  • the lateral surface 30b of the outlet orifice 30 may also be frustoconical with a convergence or a divergence between its upstream end and its downstream end.
  • the axis A2 of the outlet orifice 30 can be offset with respect to the axis A1 of the swirl chamber 32, as shown in FIG. figure 2 , or coincident with the axis A1 of the vortex chamber 32 to form a common axis A of the side surface of the outlet channel, which side surface is formed jointly by the side surfaces 30b, 32b of the outlet port 30 and the vortex chamber 32.
  • the spray nozzle 28 comprises at least one supply duct 36.
  • the supply duct 36 and the swirl chamber 32 are adapted to drive the fluid product. in a rotational movement about the axis A1 of the vortex chamber 32 in a direction of rotation materialized on the Figures 2 and 3 by an arrow F.
  • Each supply duct 36 extends in a plane perpendicular to the axis A1 of the vortex chamber 32 between an upstream end and a downstream end. Each supply duct 36 extends tangentially with respect to the lateral surface 32b of the vortex chamber 32 and the downstream end of each supply duct 36 opens into the lateral surface 32b of the vortex chamber 32.
  • Each supply duct 36 may be delimited by bottom surface 38 and internal lateral edges 39 and outer 40 substantially perpendicular to the bottom surface 38. It can be provided that the lateral edges 39, 40 converge towards each other from the upstream end to the downstream end of the feed duct 36.
  • the outer lateral edge 40 may be substantially rectilinear and connect tangentially to the lateral surface 32b of the swirl chamber 32.
  • the inner lateral edge 39 also substantially rectilinear, may be connected to the lateral surface 32b of the swirl chamber 32 being inclined with respect to a direction parallel to the outer lateral edge 40.
  • the front wall 29 may have, on its upstream face 33, a generally flat front surface and an annular boss 37, for example integral with the front wall 29, projecting from the front surface of the front wall 29.
  • the boss Annular 37 internally defines the vortex chamber 32.
  • the annular boss 37 also delimits externally a peripheral chamber 35.
  • the boss 37 may comprise a single groove formed by an interruption of the boss 37 and delimiting the single supply duct 36.
  • the bottom surface 38 of the supply duct 36 may be substantially coplanar with the front surfaces of the swirl chamber 32 and of the front wall 29.
  • the downstream end of the supply duct 36 then opens into the lateral surface 32b of the vortex chamber 32 and the upstream end of the supply duct 36 opens into the peripheral chamber 35.
  • the boss 37 comprises a plurality of grooves each delimiting a supply duct 36.
  • the vortex chamber 32 is recessed in the end wall 29 so that the end surfaces of the vortex chamber 32 and the end wall 29 are axially offset relative to one another.
  • the spraying nozzle 28 may comprise one or more feed ducts 36, for example three equalized ducts, the downstream ends of which open into the lateral surface 32b of the swirl chamber 32.
  • the supply ducts 36 may be formed by grooves formed in hollow in the end wall 29.
  • the bottom surface 38 of each supply duct 36 may for example be arranged between the front surface of the front wall 29 and the front surface 32a of the chamber swirling 32.
  • the lateral surface 32b of the vortex chamber 32 comprises a relief arranged radially relative to to the axis A1 and adapted to form a static surface layer of fluid product.
  • the relief then forms, on the lateral surface 32b of the vortex chamber 32, a singularity which immobilizes a stable, surface layer of fluid product.
  • the circulation of the fluid product on the lateral surface 32b forms a boundary layer on the lateral surface 32b which is immobilized by the relief to coat the lateral surface 32b with a coating layer of a predetermined thickness on which the remainder of the fluid can slide. without rubbing.
  • the relief comprises a plurality of equidistributed recesses 41 formed on the lateral surface 32b of the swirl chamber 32.
  • each recess 41 may form a ramp deviating from the axis A1 with respect to the direction of rotation F of the product fluid in the swirl chamber 32.
  • the relief comprises only one recess.
  • the relief may comprise one or more striations parallel to the axis A2. It can also be provided that the relief comprises a plurality of asperities forming a roughness on the lateral surface of the outlet channel, the roughness being local, distributed, continuous or discontinuous.
  • the output channel may comprise only one section forming the outlet orifice 30 which extends between an upstream end and a downstream end respectively opening on the upstream face and the downstream face of the end wall 29.
  • Each supply duct 36 then extends tangentially to the lateral surface 30b of the outlet port 30 on which the relief is arranged. The downstream end of each feed duct 36 opens into the outlet orifice 30 in the vicinity of the upstream end of said outlet orifice 30.
  • the spray nozzle 28 may constitute an insert which is fitted into the housing 21 of the push button 17.
  • the spray nozzle 28 may then comprise, on the side of the upstream face 33 of the end wall 29, an associated wall 31 which extends in the vicinity of the periphery of the front wall 29 substantially perpendicular to the front wall 29.
  • the associated wall 31 of the spray nozzle 28, possibly provided with beads, is fitted inside the housing 21 parallel to the axis 22 of the housing 21, until the front wall 29 comes into contact with the abutment surface 27 of the stud 23.
  • the boss 37 comes into contact with the abutment surface 27 and, in the variant of the figure 3 the front surface of the end wall 29 comes into contact with the abutment surface 27.
  • the spray nozzle 28 is integral with the body of the dispensing member 17, the abutment surface 27 being attached, for example by the insertion of a inserted in the housing 21. This avoids the risk of expulsion of the spray nozzle 28 when spraying the fluid.
  • the swirl chamber 32 then formed at the interface between the front wall 29 and the abutment surface 27 is delimited by the front surface 32a, the abutment surface 27 and the lateral surface 32b extending between the front surface 32a and the abutment surface 27.
  • the supply duct 36 is delimited by the bottom surface 38, the abutment surface 27 and the lateral edges 39, 40 which extend between the bottom surface 38 and abutment surface 27.
  • each supply duct 36 is placed in communication, either via the peripheral chamber 35 in the embodiment of the figure 2 either directly in the variant of the figure 3 , with the annular space 24 and the radial passage 26 of the supply channel.
  • the nozzle 10 moved downwards delivers the fluid under pressure to the axial sleeve 25 and the radial passage 26 of the feed channel into the annular space 24 of the housing 21.
  • the upstream end of the supply duct 36 is fed with fluid under pressure, which fluid product is then brought tangentially into the vortex chamber 32, or directly into the outlet orifice 30, via said supply duct 36.
  • fluid product can be rotated in the outlet orifice 30 and out of the distributor 1 in the form of the aerosol 2 composed of individual small droplets and of generally conical shape with the desired spray angle ⁇ , for example less than or equal to 80 °.
  • the use of the spray nozzle 28 according to the embodiments described above makes it possible to obtain the desired aerosol 2 from the beginning to the end of the actuation of the dispenser and throughout the duration of use of the dispenser. 1.
  • the spray nozzle 28 as described above can be used for spraying any type of fluid, for example a viscous fluid product having a viscosity greater than 0.001 Pa.s at 20 ° C. It is expected, moreover, that the nozzle of spraying 28 can be used to spray a fluid that has a viscosity of less than or equal to 10 Pa.s at 20 ° C.
  • the fluid product disposed within the tank 3 may therefore have a viscosity in the range provided above.

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  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)
EP07123074A 2006-12-15 2007-12-12 Sprühdüse, Verteilungsorgan, das eine solche Düse umfasst, Verteiler, der ein solches Organ umfasst, und Einsatz einer solchen Düse Expired - Fee Related EP1932595B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0610944A FR2909908B1 (fr) 2006-12-15 2006-12-15 Buse de pulverisation, organe de distribution comprenant une telle buse, distributeur comprenant un tel organe et utilisation d'une telle buse.

Publications (2)

Publication Number Publication Date
EP1932595A1 true EP1932595A1 (de) 2008-06-18
EP1932595B1 EP1932595B1 (de) 2010-04-14

Family

ID=38198381

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07123074A Expired - Fee Related EP1932595B1 (de) 2006-12-15 2007-12-12 Sprühdüse, Verteilungsorgan, das eine solche Düse umfasst, Verteiler, der ein solches Organ umfasst, und Einsatz einer solchen Düse

Country Status (5)

Country Link
US (1) US8418940B2 (de)
EP (1) EP1932595B1 (de)
DE (1) DE602007005909D1 (de)
ES (1) ES2341042T3 (de)
FR (1) FR2909908B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101022601B1 (ko) * 2010-08-19 2011-03-16 정해룡 디스펜서용 노즐
FR3050125B1 (fr) * 2016-04-14 2021-12-17 Albea Le Treport Buse de pulverisation, notamment pour un systeme de distribution d'un produit sous pression muni d'un bouton poussoir, et systeme de distribution comprenant une telle buse

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0796661A1 (de) 1996-03-20 1997-09-24 Calmar Inc. Düse für Pumpenzerstäuber zur Erzeugung eines Vollstrahles
WO1999001227A1 (en) * 1997-07-04 1999-01-14 University Of Southampton Improved targeting of flying insects with insecticides and apparatus for charging liquids
WO2003061839A1 (fr) * 2002-01-25 2003-07-31 Verbena Corporation N.V. Buse de pulverisation a diametre reduit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4071196A (en) * 1975-08-28 1978-01-31 Vca Corporation Aerosol valve tip and insert assembly
US4358057A (en) * 1980-05-27 1982-11-09 Ethyl Products Company Fluid dispenser method and apparatus
FR2772644B1 (fr) * 1997-12-24 2000-02-04 D Investissement Ind Et Commer Buse de pulverisation a moyen statique d'inhibition d'ecoulement
US6793156B2 (en) * 2002-02-28 2004-09-21 Saint-Gobain Calmar Inc. Orifice cup for manually actuated sprayer
US7198201B2 (en) * 2002-09-09 2007-04-03 Bete Fog Nozzle, Inc. Swirl nozzle and method of making same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0796661A1 (de) 1996-03-20 1997-09-24 Calmar Inc. Düse für Pumpenzerstäuber zur Erzeugung eines Vollstrahles
WO1999001227A1 (en) * 1997-07-04 1999-01-14 University Of Southampton Improved targeting of flying insects with insecticides and apparatus for charging liquids
WO2003061839A1 (fr) * 2002-01-25 2003-07-31 Verbena Corporation N.V. Buse de pulverisation a diametre reduit

Also Published As

Publication number Publication date
US8418940B2 (en) 2013-04-16
EP1932595B1 (de) 2010-04-14
FR2909908B1 (fr) 2009-02-27
US20080164346A1 (en) 2008-07-10
ES2341042T3 (es) 2010-06-14
DE602007005909D1 (de) 2010-05-27
FR2909908A1 (fr) 2008-06-20

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