EP0561696B1 - Buse de distribution - Google Patents

Buse de distribution Download PDF

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Publication number
EP0561696B1
EP0561696B1 EP19930400678 EP93400678A EP0561696B1 EP 0561696 B1 EP0561696 B1 EP 0561696B1 EP 19930400678 EP19930400678 EP 19930400678 EP 93400678 A EP93400678 A EP 93400678A EP 0561696 B1 EP0561696 B1 EP 0561696B1
Authority
EP
European Patent Office
Prior art keywords
peripheral
central
chamber
cup
dispensing nozzle
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.)
Expired - Lifetime
Application number
EP19930400678
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0561696A1 (fr
Inventor
Gilles Baudin
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
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 LOreal SA filed Critical LOreal SA
Publication of EP0561696A1 publication Critical patent/EP0561696A1/fr
Application granted granted Critical
Publication of EP0561696B1 publication Critical patent/EP0561696B1/fr
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
    • 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
    • B05B7/10—Spray pistols; Apparatus for discharge producing a swirling discharge
    • 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
    • B05B7/06—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane
    • B05B7/062—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet
    • B05B7/066—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet with an inner liquid outlet surrounded by at least one annular gas 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
    • B65D83/16—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 characterised by the actuating means
    • B65D83/20—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 characterised by the actuating means operated by manual action, e.g. button-type actuator or actuator caps

Definitions

  • the invention relates to a dispensing nozzle for dispensing a fluid to be dispensed.
  • a dispensing nozzle which comprises a central supply chamber disposed around an axis and an outlet channel disposed along this axis.
  • the pressure can be obtained in different ways, for example manually, by action on a bulb fitted to the container containing the fluid to be dispensed, or on the container itself provided flexible, or on a push button for actuating a pump; the pressure applied to the fluid can also be obtained by the presence in the container of another fluid introduced under pressure, whether it is gaseous or liquefied, propelling the fluid to be dispensed.
  • the quality of the distribution essentially lies in the fineness of the particles sprayed; hitherto, shapes given to the distribution chamber and / or to the outlet channel have made it possible to improve the spraying of the fluid to be distributed and to obtain a suitable distribution; but the number of parameters that can act on the fineness of this spraying is limited, and these parameters had to be kept within close tolerances, which increases the cost price and is not always compatible with mass production.
  • US-A-4 347 982 describes a fuel oil burner nose which does not have a cup or spray chamber. Spray vapors are sent by an external sleeve around the fuel outlet so as to strike the jet of fuel and spray it.
  • EP-A-0 309 010 relates to a nozzle as defined in the preamble of claim 1.
  • the present invention relates to a dispensing nozzle making it possible to obtain a spraying of the fluid to be dispensed as suitable, but under easier and more flexible industrialization conditions.
  • a distribution nozzle for the distribution of a fluid to be dispensed, under pressure, comprising a central supply chamber arranged around an axis and a central outlet channel in communication on the one hand with said central chamber and secondly with the outside, said outlet channel being disposed in the axis of said central chamber, the dispensing nozzle further comprising a peripheral supply chamber and a peripheral outlet channel in communication on the one hand with said peripheral chamber and on the other hand with said exterior peripheral chamber surrounding said central chamber and the peripheral channel surrounding said central channel, the two said chambers and said channel peripheral being arranged circumferentially around said axis of said central chamber, the peripheral chamber being intended to be supplied by a second fluid to be distributed, distinct from the first fluid supplying the central chamber, one of said first and second fluids being a gas, and l other a liquid, in which the central chamber is defined by a central cup fitted on a central end-piece carried by a support, between the internal face of said central cup and the external face of said central end-piece,
  • the central cup is also fitted inside the peripheral end piece, and advantageously, the peripheral cup is also fitted inside an external end piece of the support surrounding the peripheral end piece.
  • the central and / or peripheral supply chamber is cylindrical, or conical converging towards the outside, or hemispherical, or other.
  • the central outlet channel is cylindrical, or conical, advantageously converging towards the outside; preferably, it has a conical portion opening into the distribution chamber and a cylindrical portion opening to the outside.
  • the peripheral outlet channel is cylindrical or conical, advantageously diverging towards the outside.
  • a cup-shaped cap is fitted on the peripheral cup and in the external end piece of the support, and defines, in combination with the conical outer face of the peripheral cup, a plurality of conical passages converging towards the outside, distributed circumferentially around the axis, each passage having an inlet and an outlet, said inlet further away from the axis and more as wide as said outlet communicating with the outside, and said outlet also communicating with the outside in the vicinity of the outlet of the peripheral channel.
  • the present invention can be variously applied, for example to a dispensing pump, a dispensing valve, metering or not, a pear system .
  • the nozzle support is the actuation push button d 'A distribution pump intended to equip a dispenser container, one of the two fluids being the liquid to be dispensed present in the container and the other fluid the gas in the container, in particular when the gas in the container is under pressure.
  • the nozzle support is the dispensing valve of an aerosol can, one of the two fluids being the liquid to be dispensed and the other fluid the gaseous propellant of the liquid to be dispensed.
  • the nozzle support is the end of a compressible bottle, one of the two fluids being the liquid to be dispensed and the other fluid the air contained in the bottle above the level of the liquid.
  • the gaseous fluid can be a compressed gas or a liquefied gas, and preferably compressed air, or nitrogen.
  • the dispensing nozzle in FIG. 1, comprises a central cup 2 fitted on a central end piece 3 carried by a support 10; a central chamber 4 is thus defined by the internal face 5 of the central cup 2 and the external face 6 of the central end piece 3.
  • the bottom of the central cup 2 is crossed by a central outlet channel 7, and the cylindrical part said central cup 2 is fitted with a seal at 32 inside a peripheral end piece 13, of the support, surrounding the central end piece 3; the central cup 2 is held axially in the peripheral end piece 13, for example by clipping at 33.
  • a peripheral cup 11 is fitted onto the peripheral end piece 13, and, at sealing, at 34 inside an external end piece 28 carried by the support, the external end piece 28 surrounding the peripheral end piece 13; the peripheral cup 11 is held axially in the external end piece 28, for example by clipping at 35.
  • a peripheral chamber 36 is thus defined between the internal face 12 of the peripheral cup 11, the external face of the peripheral end piece 13, and the outside face 14 of the central cup 2.
  • the outside face of the bottom of the central cup 2 and the inside face of the bottom of the peripheral cup 11 are conical, so that the bottoms of the two cups being in the same plane perpendicular to the axis, a peripheral outlet channel 25 passing through the bottom of the peripheral cup has, when the cups are mounted in the support, an annular shape and surrounds the central channel 7.
  • the central chamber 4 is supplied with a first fluid by a supply inlet 9 and a clearance 8, for example a longitudinal groove in the inner face of the central cup 2, between the central cup 2 and the central sleeve 3, which game 8 opens into an annular space 9 at of the support, the supply inlet 9 opening into the annular space 9 at .
  • the peripheral chamber 36 is, in the same way, supplied with a second fluid by a supply inlet 15, an annular space 15 at and a longitudinal groove 16 formed on the internal face of the cylindrical wall of the peripheral cup 11.
  • the support 10 of the nozzle 1 is the push button of a valve for dispensing a conventional aerosol can, which, for this reason, will not be detailed here.
  • the supply inlet 9 communicates with the interior 19 of a tubular element 18 for actuating a valve which opens under the action of a force applied to the support 10, and the liquid contained in the container. is then sprayed outside, through the central channel 7, under the action of the propellant fluid contained in the container in the usual manner.
  • this same action on the push button puts the space of the container containing the propellant fluid into communication with the annular space 20, comprised between the tubular element 18 and a sheath 17, both carried by the button pusher 10, the annular space 20 communicating with the inlet 15 for supplying a second fluid, here the propellant; this propellant gas leaves through the peripheral channel 25 and, due to the conical shape of the peripheral chamber, this current of propellant gas collides, at the outlet, with the stream of liquid leaving the central channel 7; this arrangement allows better fractionation of the dispensed liquid, and therefore greater spray finesse.
  • the liquid and gas distribution sequences can be varied: it is, for example, advantageous to distribute gas first, then gas and liquid at the same time, and then again gas alone, which will clean by driving the central channel 7 thanks to the vacuum created by the gas stream.
  • the fractionation of the dispensed liquid can be adapted to its nature, in particular by adapting the central 7 and peripheral 25 channels, and / or the central 4 and peripheral 36 chambers.
  • the outer face of the bottom of the central cup 2 is in two tapered portions 14 a, 14 b, the angle of the part 14 a is more acute than that of the portion 14 b; thanks to this arrangement, the peripheral channel 25 is closer radially to the central channel 7.
  • the central and peripheral chambers have volumes, at the entrance, frustoconical annulars, limited, among others, by the conical portions 21 and 22 respectively of the internal faces of the central 2 and peripheral cups 11.
  • the hemispherical shape of the end of the external face of the central end piece, the part opposite the inner face 5 of the central cup 2 having a corresponding hemispherical shape, which inner face 5 of the central cup 2 being provided with helical fins 23, also visible in FIG. 3a, so as to provide the liquid with a vortex movement.
  • the central channel 7 has, here, a conical shape converging towards the outlet.
  • the bottom of the peripheral cup 11 is flat, as well as the outer face of the central cup 2 located opposite; the inner face of the bottom of the peripheral cup 11 is provided with fins 24, also visible in FIG. 3b; these fins 24 are plane, in planes parallel to the axis but not passing through the axis, and inclined at the same angle and in the same direction relative to the rays which pass through their end furthest from the axis: this arrangement makes it possible to provide the propellant gas, also, with a vortex movement; it will be noted that the vortices of liquid and gas are in opposite directions so as to increase the fractionation.
  • FIG. 3b the inner face of the bottom of the peripheral cup 11 is provided with fins 24, also visible in FIG. 3b; these fins 24 are plane, in planes parallel to the axis but not passing through the axis, and inclined at the same angle and in the same direction relative to the rays which pass through their end furthest from the axis: this arrangement makes it possible to provide the propellant gas, also, with
  • the peripheral channel is formed of two truncated cones, one, 25A, converging, and the other, 25B, diverging, the planar end perpendicular to the axis of the outlet of the central channel being disposed in line with the connection plane of the two trunks of cones 25A, 25B.
  • the variant nozzle comprises the advantageous arrangements of FIG. 3, namely the precompression of the fluids thanks to the frustoconical shapes 21, 22 of the internal faces of the cups, as well as of the swirl movements of the fluids;
  • the fins 26, 27 causing these vortex movements are all carried by the bottom of the central cup: these fins are of the type described according to FIG. 3b; the fins 26 are provided on the internal face of the central cup 2 and also visible in FIG. 4a, seen from the left of FIG. 4, and the fins 27 are provided on the external face of the central cup 2 and also visible on FIG. 4b, view from the right of FIG. 4.
  • the variant of Figure 4 is also advantageous by the relative arrangement and the constitution of the central and peripheral channels.
  • the central channel is conical converging outwardly 7a, and the conical peripheral channel diverge outwardly in 25 b; the two trunks of cones 7 a and 25 b are separated by a space 7 b in which the fluids meet; this provision venturi allows the compression of the liquid 7 to the meeting of the liquid and gas 7 b, depression of the mixture 25 b, and promotes the fineness and homogeneity of the spray.
  • the variant nozzle according to FIG. 5 is similar to that of FIG. 4, to which a cap 37 in the form of a cup has been added; the cap 37 consists of a cylindrical skirt 38 and a spherical cap 39, connected by radial ribs 30.
  • the skirt 38 is fitted with a seal, on the one hand, on the cylindrical outer face of the peripheral cup 11 clipped at 35 and, on the other hand, inside the external end piece 28, clipped at 40, also sealed.
  • the space between the inside face of the cap 39 and the outside face of the peripheral cup 11 defines a plurality of conical channels converging towards the outside, the outside face of the cup (11) being provided in conical shape, according to 29 in Figure 5; these channels distributed conferentially around the axis open on either side to the outside, having an inlet, distant from the axis, more wider than the exit near the axis; an annular outlet 31 is thus defined; this outlet 31 surrounds the outlet of the peripheral channel 25 b and is close to it; thanks to this arrangement, the vacuum prevailing at the outlet of the venturi 7 at , 7 b , 25 b sucks in outside air which passes through these channels and also comes to fractionate and aerate the sprayed fluid.
  • the example shown shows the application of the nozzle according to the invention to a valve for dispensing an aerosol can, but, of course, it can equip any container for dispensing a pressurized fluid: container provided with a pear, container fitted with a pump, flexible compressible container; in the latter case, the nozzle support is the end of a container, or compressible bottle, in which one of the fluids is the liquid to be dispensed, and, the other fluid, the air contained in the bottle at the - above the liquid level.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)
  • Apparatus For Making Beverages (AREA)
EP19930400678 1992-03-20 1993-03-17 Buse de distribution Expired - Lifetime EP0561696B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9203354A FR2688711A1 (fr) 1992-03-20 1992-03-20 Buse de distribution.
FR9203354 1992-03-20

Publications (2)

Publication Number Publication Date
EP0561696A1 EP0561696A1 (fr) 1993-09-22
EP0561696B1 true EP0561696B1 (fr) 1996-10-30

Family

ID=9427881

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930400678 Expired - Lifetime EP0561696B1 (fr) 1992-03-20 1993-03-17 Buse de distribution

Country Status (4)

Country Link
EP (1) EP0561696B1 (me)
DE (1) DE69305671T2 (me)
ES (1) ES2093373T3 (me)
FR (1) FR2688711A1 (me)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2331031A (en) * 1997-11-05 1999-05-12 Itw Ltd An improved spray nozzle
GB2335731B (en) 1998-03-27 2001-12-19 Anthony Michael Glazer A cryostat nozzle and a method of using a cryostat
US9120109B2 (en) * 2012-02-29 2015-09-01 Universidad De Sevilla Nozzle insert device and methods for dispensing head atomizer
FR3094970B1 (fr) * 2019-04-10 2022-12-23 Lindal France Diffuseur pour récipient sous pression

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1251437A (fr) * 1959-12-11 1961-01-20 Perfectionnements aux pulvérisateurs
US4200232A (en) * 1978-10-23 1980-04-29 The United States Of America As Represented By The Secretary Of The Interior Induced air flow self-cleaning spray nozzle
US4347982A (en) * 1979-07-02 1982-09-07 Adelphi Research Center, Inc. Oil burner nozzle
DE3722469A1 (de) * 1987-07-08 1989-01-19 Pfeiffer Erich Gmbh & Co Kg Handbetaetigbare austragvorrichtung fuer medien

Also Published As

Publication number Publication date
ES2093373T3 (es) 1996-12-16
DE69305671T2 (de) 1997-02-27
EP0561696A1 (fr) 1993-09-22
FR2688711B1 (me) 1995-06-02
FR2688711A1 (fr) 1993-09-24
DE69305671D1 (de) 1996-12-05

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