EP0000688B1 - Tête de pulvérisation - Google Patents

Tête de pulvérisation Download PDF

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Publication number
EP0000688B1
EP0000688B1 EP78810011A EP78810011A EP0000688B1 EP 0000688 B1 EP0000688 B1 EP 0000688B1 EP 78810011 A EP78810011 A EP 78810011A EP 78810011 A EP78810011 A EP 78810011A EP 0000688 B1 EP0000688 B1 EP 0000688B1
Authority
EP
European Patent Office
Prior art keywords
atomizing nozzle
nozzle according
annular chamber
tangential
ducts
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
Application number
EP78810011A
Other languages
German (de)
English (en)
Other versions
EP0000688A3 (en
EP0000688A2 (fr
Inventor
Winfried Jean Werding
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.)
Individual
Original Assignee
Individual
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
Priority claimed from CH960777A external-priority patent/CH618355A5/fr
Priority claimed from CA288,724A external-priority patent/CA1077001A/fr
Priority claimed from CH202478A external-priority patent/CH646619A5/de
Application filed by Individual filed Critical Individual
Publication of EP0000688A2 publication Critical patent/EP0000688A2/fr
Publication of EP0000688A3 publication Critical patent/EP0000688A3/xx
Application granted granted Critical
Publication of EP0000688B1 publication Critical patent/EP0000688B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B05B7/0425—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid without any source of compressed gas, e.g. the air being sucked by the pressurised liquid
    • 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
    • B65D83/0055—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents
    • 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

Definitions

  • the invention relates to a spray nozzle for dispensing a liquid under excess pressure in the form of a spray cloud, comprising at least two parts which abut one another transversely to the axis of the outlet opening present in one of the parts, an axially symmetrical flow path system being arranged between the parts and concentrically having an orifice chamber having a plurality of passages which open into it substantially tangentially from an external annular chamber, further passages opening out at substantially right angles from the outside being provided in the passages, through which the pressurized liquid is supplied to the flow path system from the outside.
  • a spray nozzle of the type described in the opening paragraph is known from FR-A-2 325 434, in which the spray head contains ring channels and a central swirl chamber in order to split the product to be atomized as finely as possible.
  • this spray head has several disadvantages, with the particular importance that it allows an uncontrolled flow of the product in the swirl chamber. In addition, it does not provide any means of increasing the flow velocity of the product towards the outlet. This spray head is therefore not suitable for dispensing finely atomized products that are stored under only relatively low pressure and without propellant gas.
  • Another known spray nozzle is known from US Pat. No. 3,620,018 by John Richard Focht and is used for the mechanical “break-up” of a liquid stream to form a spray cloud of droplets.
  • This known nozzle is easier to manufacture than one with similar basic features, described in US Pat. No. 3,083,917 by Robert Abplanalp et al. described.
  • the feed channels of the well-known Focht nozzle are separated from one another by separating bodies such as guide walls or baffles; they start from a common outer annular chamber and end in a common central outlet opening.
  • these known spray nozzles do not sufficiently meet the requirements placed on many products to be sprayed, such as hair varnish, deodorants, air fresheners or insecticides. So they should, especially z. B. for hair varnish, have a particle size between 5 and 10 in order to achieve a fast evaporation time, so that streaking of the hair is avoided when the consumer squeezes her hair after spraying.
  • Air fresheners and insecticides must evaporate quickly or hover in the air so that they do not stain furniture, walls, carpets or parquet floors.
  • the sprayed product must have a sufficiently strong impact force when it comes to hair lacquer so that it not only lies on the hair but can also penetrate between them, which ensures an airy hairstyle.
  • the spray cloud should penetrate the air space as far as possible.
  • Spray nozzles such as those available for aerosol cans or pump atomizers, require a pressure of at least 6 atü to generate spray clouds of the aforementioned quality, if they are used without a liquid gas component, approx. 3 atü in the presence of such a component, because a propellant consisting of liquid gas relaxes in contact with the ambient air and thus plays a key role in the formation of the fine droplet size in the spray cloud.
  • the spray nozzle according to the invention is preferably to be used for liquid gas-free atomization without an air pump and without other propellants (propellantiess dispensers), but with a maximum of 2.4 atmospheres, possibly less pressure depending on the storage time, the nozzle must be designed so that it is able to deliver the required spray quality at a relatively low pressure, but is easy and cheap to produce, while in the presence of liquid gas in the product and correspondingly higher pressures it achieves a previously unknown, significantly increased fineness of the particles in the spray cloud shall be.
  • the atomizer actuating head 30 shown in longitudinal section in FIG. 1 contains in its side wall 30a a recess 31, into which the one shown in a preferred embodiment, in the form of a cup-shaped housing 33 and a nozzle core or plug inserted into the recess 33a provided in the inner wall of the latter 32 existing spray nozzle is used.
  • the nozzle core 32 bears in its front face 32a, which is close to the bottom 33b of the recess 33a and faces the nozzle outlet 41, and in its recesses formed in the lateral circumferential wall 32b, which is close to the side wall 33c of the recess 33a, which in the when the nozzle core 32 and nozzle sleeve are assembled 33 created nozzle form the hollow nozzle interior consisting of annular chambers and channels or passages.
  • the depressions mentioned are particularly illustrated in the illustrations of the nozzle core 32 according to FIGS. 2 and 3.
  • the actuating head 30 carries on its underside a sleeve piece or neck part 34 which is open at the bottom and into which the valve stem of an aerosol spray can can be inserted in a known manner.
  • the inside of the sleeve piece 34 forms the main feed channel 27, from the upper end region of which in the actuating head 30 there are four axial feed channels or passages 35 in the axial direction to the central axis MA of the nozzle, which are formed by longitudinal grooves in the peripheral wall 32b of the nozzle core 32, at right angles in depressions or passages in the End face 32a, which form the turbulence system of the nozzle.
  • this comprises four tangential gears 36, each with its inlet opening 36a at right angles to the front end of one of the axial gears 35, each of which is skewed to the nozzle center axis in a plane intersecting this axis and tangentially from the outside into one common first outermost annular chamber 37 open out, their outlets 36b being distributed symmetrically around the outer peripheral wall 37a of the annular chamber 27 (FIG. 2) and forming the leading edges 36c with the latter peripheral wall.
  • the annular chambers and tangential passages are covered hermetically or at least in a liquid-tight manner by the bottom surface 33b of the recess 33a.
  • a liquid under pressure flowing through the hollow interior of the nozzle can therefore only move through the passages and annular chambers to the outlet opening 41.
  • the most ideal conicity of the tangential passages 36 is achieved by drawing a tangent from the channel side 35A to the periphery of the annular chamber 37 and from the channel side 35B a straight line through the point of contact 37A of this tangent with the annular chamber 37.
  • the width of the annular chamber 37 is then advantageously selected so that it is equal to the width of the opening 36b of the tangential passages 36 into the annular chamber 37.
  • the most ideal location for the edge 38d of the inlet opening 38a of the inner tangential passages 38 of a secondary stage is obtained if a tangent to the periphery of the second annular chamber 39 is drawn from the first point of contact on the edge 36c between the straight line 35B-37A and the annular chamber wall 37a. and the most ideal entry width of the entry openings 38a of the inner tangential passages 38 is achieved by drawing a straight line to point 35A of the channel side edge 35a of the feed channel or axial passage 35 at the point of contact 39A of this tangent with the second annular chamber 39.
  • a width for the annular chamber 39 is then advantageously selected which is identical to the sum of the widths of the openings of the inner tangential passages 38 in the same, whereby the diameter of the peg-like projection 40 is determined.
  • the height of the outer tangential passages 36 is unchanged, whereas the inner passages 38 not only narrow laterally from the entry point 38a between the two axial wall edges 38c and 38d, but also with respect to their height to the opening 38b into the annular chamber 39. This narrowing is not continuous, but is interrupted by a step 23 which, as a mechanical break-up obstacle, already generates turbulence during the acceleration process (FIGS. 2 and 3).
  • the peripheral edge of the front side of the projection 40 (FIG.
  • a liquid under pressure is specifically accelerated, set in rotation and swirled, which leads to an optimal use of the existing ejection force.
  • the volume of the main feed channel 27 is considerably larger compared to the channels or axial passages and tangential passages connected to it. This oversized volume of the main feed channel 27 compared with the channels and aisles is necessary on the one hand in order to bring the existing compressive force under which the liquid stands up to the axial aisles 35 on the one hand, and on the other hand so that the axial and tangential aisles also easy-drying liquid by slow evaporation of a relatively large amount of liquid, which is stored in the main feed channel 27, remain consistent.
  • the spraying power of the spray nozzle according to the invention can be adapted to the respective viscosity of the liquid.
  • a higher viscosity of the liquid naturally requires a larger cross section than a small one.
  • the drop size can be adjusted by changing the distance between the peg-like projection 40 and the annular rib 42 of the nozzle sleeve 33; the smaller the distance, the smaller the drop size.
  • the distance must not be kept too small, which both reduces the ejection speed and increases the ejection angle of the spray cloud, unless these properties are desired for one or the other product.
  • the ejection angle of the spray cloud also depends on the length of the nozzle outlet 41 of the nozzle sleeve 33. The longer the outlet 41, the smaller this angle.
  • the nozzle core 32 is similar to that shown in FIGS. 1 to 3, except that instead of the second annular chamber 39 it has a turbulence chamber 45 which is formed by the projection 40 carrying an axially projecting annular flange 44 around its end face.
  • the recess 40a formed within the latter on the end face of the projection 40 delimits the turbulence chamber 45 inwardly, while the bottom surface 33b of the recess 33a of the nozzle sleeve 33 delimits this chamber externally, the annular bead 42, the outer diameter of which is somewhat smaller than the inner diameter of the Ring flange 44, something protrudes into the turbulence chamber 45.
  • annular gap 46 remains between the annular flange 44 and the collar-like annular rib 42, which, especially when the upper edge of the annular rib 42 projects up to the level of the upper edge of the annular flange 44 or beyond this level into the interior of the orifice chamber 45 causes significant increase in turbulence in the latter chamber (Fig. 5).
  • the nozzle sleeve 33 is provided on its inner edge surrounding the recess 33a with an annular flange or a flange 28 which engages so tightly in a corresponding recess 28a of the actuating head 30 that it is also under a strong pressure liquid can not be released from the actuator head 30.
  • FIG. 6 shows a further embodiment of the nozzle core 32 with six axial feed channels 35, which lead to six tangential passages 36 and which open into a common annular chamber 37, from which six inner tangential passages 38 lead to the common second annular chamber 39, which pass through the peg-like deflection projection 40 is limited.
  • Fig. 7 shows a further embodiment in which the spray nozzle according to the invention can be provided not only with two, but also with three or more successive turbulence stages, ie in addition to the passages and annular chambers 36, 37, 38 and 39, the nozzle core 2 can contain the tangential passages 48 and the annular chamber 49 of a tertiary turbulence stage and be provided with an orifice chamber 45 above the projection 40.
  • the number of successive turbulence stages also depends on the available pressure of the liquid, so that the liquid flow is not excessively slowed down by excessive friction. The greater the pressure under which the liquid is, the more turbulence levels can be provided.
  • the height of the feed channels and aisles does not decrease conically, but gradually in the direction of the mouth chamber 45; each step forms an obstacle leading to eddies and the narrowing of the passages is an acceleration factor for the liquid flow (FIG. 8).
  • Fig. 9 shows yet another embodiment of the nozzle core 32, in which the latter also has inlet channels 29 in addition to the tangential passages 36 and 38, the inlet openings 29a of which are not offset at the periphery of the nozzle core 32, but towards the center thereof, and are fed from the front side 33c of the nozzle sleeve 33 through the axially extending passages 26.
  • the inlet channels 29 are arranged such that they are tangential to the outer side wall of the annular chamber 37 in these, at suction-generating points, between the mouths 36b of two adjacent tangential. Open gears 36.
  • the outer wall of the annular chamber 37 is not absolutely round, but narrows straight (viewed in the direction of flow) in front of the mouths 29b of the inlet channels 29.
  • the already accelerated liquid flowing in from a tangential passage 36 becomes driven into the subsequent narrowing of the annular chamber 37, where it is accelerated again, whereby it causes a suction as it flows past the mouth 29b of an inlet channel 29, and all the more so because this mouth 29b is somewhat behind (ie upstream) the inlet point 38a is a tangential passage 38 through which the liquid flows to the outlet opening 41.
  • the inlet channels 29 are provided to a second medium, such as. As air, suck in and mix with the liquid flowing through the interior of the nozzle.
  • the spray nozzle according to the invention should preferably serve to dispense a product free of gas, in particular also propellant gas
  • a foam-forming product e.g. B. shaving cream
  • this requires the presence of gaseous medium to form foam in addition to the basic liquid of the shaving cream, a gas portion can be introduced. This can be done by the base liquid flowing through the outer tangential passages 36, the annular chamber 37 and the inner tangential passages 38. the openings 29a of the inlet channels 29 can suck in air, which then, mixed with the liquid, forms the shaving foam (FIGS. 9 to 12).
  • FIG. 11 and 12 show a spray nozzle with a nozzle sleeve 33 and with a nozzle core 32 inserted therein, in which the four openings 29a, through which a second medium can be drawn in via the inlet channels 29, via passages 26a and an annular channel 26b (dashed line in Fig. 11) are connected to each other, which extends in the nozzle sleeve 33 and is connected to an inlet valve 22, with which the amount of suction of the second medium can be controlled.
  • a gas medium such an embodiment can also suck in other fluid media, such as liquids or fine powders, which is described in more detail below.
  • FIG. 13 shows a longitudinal section through an actuating head with another advantageous embodiment of the spray nozzle according to the invention.
  • the various channels, passages and annular chambers are formed or eroded in an inner nozzle body 52 on the end face 52a and peripheral wall 52b thereof and are covered with a nozzle sleeve according to FIG. 4.
  • the nozzle body 52 is preferably formed in one piece with the actuating head 50 and protrudes from the bottom 51 of the recess 51a in the side wall 51 to such an extent that above and around it there is enough play for the tight, tight insertion of the nozzle sleeve 53 into the side wall 51 of the Actuating head 50 remains.
  • Such an embodiment is only possible if the diameter of the nozzle body 52 allows the four feed channels (axial passages) 35 to be created by injection molding, ie if the diameter is too large, the feed channels 35 become too long. Since these must have a very small cross-section, depending on the viscosity of the product between 0.3 and 0.6 mm, they must be kept as short as possible.
  • the most advantageous upper limit of the total diameter of the nozzle body 52 in this embodiment is 16 mm. If the diameter has to be larger for some reason, it is advisable to choose the embodiment according to FIG. 1.
  • the main feed channel 54 has a shortened channel part 56 on the inner end wall 52c of the nozzle body 52 and a narrowing of the remaining channel part 57, which extends further into the actuating head 50. Furthermore, the angle ⁇ of the blind end 57a of the narrowed channel part 57 with the central axis of the nozzle is greater than the corresponding angle a of the blind end 56a of the shortened channel part 56.
  • These angled blind ends 56a and 57a serve as bouncing surfaces or baffles for the liquid flowing in the main feed channel 54 which by means of these rebound surfaces with more or less strong pressure in the axial feed channels 35, and 35 2 is driven.
  • the main feed channel 54 were to be cylindrical, there would be a dynamic pressure at the blind end thereof, which would drive the liquid over the upper feed channels 35 at a higher pressure than over the lower feed channels 35 2 .
  • this is avoided by the impact surface 56a protruding in the area of the main feed channel 54, above the lower channels 35 2 , the surface and angle of inclination of which are selected such that a dynamic pressure in the channels 35 2 underneath there is identical to that in the upper channels 35 , arises.
  • the four channels 35 and 35 2 have an uneven pressure output, the spray cloud becomes asymmetrical. Of the four channels 35 1 , 35 2 , only two lying in the sectional plane are shown.
  • the new nozzle eliminates the use of a pump, which not only requires repeated pressing to eject the product, but also pumps ambient air and thus oxygen into the product container, which of course leads to undesired oxidation of the product.

Claims (18)

1. Gicleur pour l'émission d'un liquide sous pression en forme d'un brouillard atomisé, comportant au moins deux parties (32, 33) situées face en face, transversalement à l'axe (MA) de l'orifice d'émission (41) placé dans une des parties. Est prévu en outre un système asymétrique d'écoulement (35, 36, 37, 38, 39) placé entre les deux parties, pourvu au centre d'une chambre de débouchure (45) dans laquelle débouchent plusieurs conduits (36, 38), pour la plupart sous forme de tangente, venant d'une chambre annulaire (37, 39) située à l'extérieur, d'autres conduits (35) qui suivent un cours axial enbouchant dans ces conduits (36) de l'extérieur pour la plupart rectangulairement, par lesquels est amené sous pression le liquide (139) de l'extérieur au système d'écoulement, caractérisé en ce qu'est prévu au centre de la chambre de débouchure (45) face à l'orifice d'émission (41) une pièce de déviation saillante en forme de cheville (40) qui s'étend jusqu'à l'orifice d'émission (41) et/ou qu'est prévu dans au moins un des conduits tangentiels (36) une pièce saillante de déviation (23).
2. Gicleur selon la revendication 1, caractérisé en ce que la partie (33) ayant l'orifice d'émission (41) est formée comme boîte en forme de pot dans laquelle est insérée l'autre partie (32) comme un bouchon.
3. Gicleur selon une des revendications citées, caractérisé en ce qu'est prévu pour l'alimentation des conduits tangentiels (38) amenant à la chambre annulaire (39) mentionnée, une autre chambre annulaire (37) située à l'extérieur et alimentée à son tour par des conduits (36) débouchant de l'extérieur pour la plupart sous forme de tangente.
4. Gicleur selon la revendication 1 ou 3, caractérisé en ce que débouche toujours un conduit (36) menant tangentiellement dans une chambre annulaire (37) au sens de l'écoulement de la chambre annulaire, à un endroit un peu en amont de l'orifice d'entrée (38a) d'un des conduits sortant de la même chambre annulaire.
5. Gicleur selon une des revendications citées, caractérisé en ce que la dimension de la coupe transversale des conduits tangentiels (36, 38) diminue au sens de l'écoulement au moins au niveau de l'embouchure (36b, 38b).
6. Gicleur selon la revendication 5, caractérisé en ce que la dimension de la coupe transversale des conduits tangentiels (36, 38) diminue de façon continue de l'orifice d'entrée jusqu'au niveau d'embouchure (36b, 38b).
7. Gicleur selon la revendication 1 ou 3, caractérisé en ce que la dimension des chambres annulaires diminue toujours d'une chambre annulaire, située à l'extérieur, à une chambre annulaire située à l'intérieur.
8. Gicleur selon une des revendications citées, caractérisé en ce que la dimension de la coupe transversale de la sortie de tout conduit tangentiel (36, 38) est au niveau d'entrée (36b, 38b) dans la chambre annulaire (37, 39) au maximum un tiers de la coupe transversale de cette dernière.
9. Gicleur selon une des revendications citées, caractérisé en ce que les conduits tangentiels (36, 38), les chambres annulaires (37, 39) et la chambre de débouchure (45) sont formés comme des évidements dans la surface extérieure du bouchon (32).
10. Gicleur selon la revendication 9, caractérisé en ce que les pièces saillantes de déviation (23) ont la forme de seuils situés au fond des évidements.
11. Gicleur selon la revendication 10, caractérisé en ce que chaque conduit pourvu d'un seuil a une coupe transversale plus grande devant celui-là que derrière.
12. Gicleur selon une des revendications 1 à 10, caractérisé en ce que les pièces saillantes de déviation (23) se trouvent au niveau de l'orifice et/ou de sortie ou bien de l'entrée d'un conduit tangentiel (38) de, ou bien dans une chambre annulaire (39).
13. Gicleur selon une des revendications citées, caractérisé en ce qu'une nervure annulaire en forme de col entoure l'orifice d'émission (4) et s'étend jusqu'à la chambre de débouchure (45).
14. Gicleur selon une des revendications citées, caractérisé en ce que la distance axiale de la surface extérieure de la pièce saillante en forme de cheville (40) jusqu'à l'entrée de l'orifice d'émission (41) est au maximum de 0,1 mm.
15. Gicleur selon une des revendications 1 -15, caractérisé en ce que la pièce saillante en forme de cheville (40) a un évidement central (40a).
16. Gicleur selon la revendication 15, caractérisé en ce que la distance axiale de la surface extérieure de la pièce saillante en forme de cheville jusqu'à la surface extérieure de la nervure annulaire (42) est au maximum de 0,05 mm.
17. Gicleur selon une des revendications citées, caractérisé en ce que sont prévus des entrées (29) pour un deuxième fluide dont chacune est prolongée tangentiellement jusqu'à la dernière chambre annulaire à l'extérieur (37).
18. Gicleur selon la revendication 17, caractérisé en ce que la chambre annulaire se rétrécit au sens de l'écoulement de celle-là devant chaque endroit d'entrée (29), de façon que l'entrée soit soumise à l'aspiration provoquée par le rétrécissement.
EP78810011A 1977-08-02 1978-08-01 Tête de pulvérisation Expired EP0000688B1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
CH9607/77 1977-08-02
CH960777A CH618355A5 (en) 1977-08-02 1977-08-02 Diffuser container
CA288724 1977-10-14
CA288,724A CA1077001A (fr) 1976-10-21 1977-10-14 Appareil servant a l'evacuation de produits gazeux, liquides ou pateux, et procede de fabrication
CH202478A CH646619A5 (en) 1977-10-14 1978-02-24 Spray nozzle
CH2024/78 1978-02-24

Publications (3)

Publication Number Publication Date
EP0000688A2 EP0000688A2 (fr) 1979-02-07
EP0000688A3 EP0000688A3 (en) 1979-02-21
EP0000688B1 true EP0000688B1 (fr) 1984-01-11

Family

ID=27165321

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78810011A Expired EP0000688B1 (fr) 1977-08-02 1978-08-01 Tête de pulvérisation

Country Status (18)

Country Link
EP (1) EP0000688B1 (fr)
JP (1) JPS5459613A (fr)
AR (1) AR219333A1 (fr)
AT (1) AT392044B (fr)
AU (1) AU521493B2 (fr)
BR (1) BR7804953A (fr)
DD (1) DD140713A5 (fr)
DE (1) DE2826784A1 (fr)
DK (1) DK151045C (fr)
ES (1) ES470662A1 (fr)
FI (1) FI64331C (fr)
FR (1) FR2399282B1 (fr)
IE (1) IE48169B1 (fr)
IL (1) IL55155A0 (fr)
IN (1) IN150150B (fr)
IT (1) IT1094411B (fr)
NO (1) NO151649C (fr)
PT (1) PT68370A (fr)

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DE3710788A1 (de) * 1987-03-31 1988-11-10 Wolfgang Fuhrig Handdruckzerstaeuber

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CA1077001A (fr) * 1976-10-21 1980-05-06 Winfried J. Werding Appareil servant a l'evacuation de produits gazeux, liquides ou pateux, et procede de fabrication
CH652468A5 (de) * 1980-08-06 1985-11-15 Werding Winfried J Schubregler zur verwendung im innern eines unter gasdruck stehenden behaelters.
GB2128107B (en) * 1982-10-01 1985-12-18 Spraying Systems Co Whirl spray nozzle
US4664314A (en) * 1982-10-01 1987-05-12 Spraying Systems Co. Whirl spray nozzle
DE3314020A1 (de) * 1983-04-18 1984-10-18 Hörauf & Kohler KG, 8900 Augsburg Handbetaetigter fluessigkeitszerstaeuber
US4721250A (en) * 1985-06-13 1988-01-26 Canadian Microcool Corporation Method and apparatus for effecting control of atmospheric temperature and humidity
BR8807106A (pt) * 1987-06-26 1989-10-31 Werding Winfried J Dispositivo para armazenagens e fornecimento controlado de produtos que se encontram sob pressao
BE1000767A7 (nl) * 1987-07-16 1989-03-28 Recticel Werkwijze en inrichting voor het vormen van een laag polyurethaan op een oppervlak door spuiten.
GB2244013A (en) * 1990-05-15 1991-11-20 Bespak Plc An actuator for a dispensing container
US5207785A (en) * 1991-08-19 1993-05-04 Calmar Inc. Protector cap and wiper for dispenser discharge orifice
ES2126753T3 (es) * 1993-05-25 1999-04-01 Verbena Corp N V Boquilla pulverizadora para la regulacion del volumen de paso por unidad de tiempo.
JPH0725725A (ja) * 1993-07-09 1995-01-27 Koike Kagaku Kk 発泡型人体用エアゾール製品
DE19600123A1 (de) * 1996-01-04 1997-07-10 Pfeiffer Erich Gmbh & Co Kg Austragkopf für Medien, insbesondere zur medikamentösen Behandlung des Rachens
FR2795346B1 (fr) * 1999-06-24 2001-09-14 Verbena Corp N V Buse de pulverisation a chambre de tourbillonnement munie d'une nervure annulaire frontale posterieure de passage de sortie
IL153538A0 (en) * 2000-07-06 2003-07-06 Lancer Partnership Ltd Method and apparatus for treating fluids
FR2821573B1 (fr) 2001-03-05 2003-06-13 Verbena Corp N V Buse de pulverisation a canaux profiles
DE10129367A1 (de) * 2001-06-20 2003-01-09 Klingenburg Gmbh Luftbefeuchtungsvorrichtung
DE10144951A1 (de) * 2001-09-12 2003-04-17 Hartmut Schiefer Sprühdose
FR2835203B1 (fr) 2002-01-25 2004-04-09 Verbena Corp N V Buse de pulverisation a diametre reduit
JP4057381B2 (ja) * 2002-09-09 2008-03-05 株式会社資生堂 噴霧容器
EP1916033A4 (fr) * 2005-07-06 2009-11-25 Mitani Valve Co Ltd Mécanisme d évacuation de contenu, produit de type aérosol et produit de type pompe dotés de ce mécanisme
DE602007003709D1 (de) 2006-05-17 2010-01-21 Medmix Systems Ag Spendervorrichtung mit sprühvorrichtung
FR2917721B1 (fr) * 2007-06-19 2012-07-27 Rexam Dispensing Sys Bouton poussoir comprenant des canaux axiaux pour l'alimentation equilibree de la chambre tourbillonnaire
US20100242164A1 (en) 2009-03-31 2010-09-30 Woongjin Coway Co., Ltd. Sterilizing water dispensing apparatus, and bidet and toilet seat having the same
GB201006080D0 (en) 2010-04-13 2010-05-26 Univ Salford The Aerosol spray device
JP5424862B2 (ja) * 2009-12-25 2014-02-26 株式会社吉野工業所 ノズルヘッド
FR2961189B1 (fr) * 2010-06-14 2013-02-22 Valois Sas Tete de distribution de produit fluide.
WO2011158881A1 (fr) 2010-06-15 2011-12-22 株式会社ダイゾー Mécanisme de trou de buse
FR2994866B1 (fr) 2012-09-04 2019-08-23 Aptar France Sas Tete de pulverisation de produit fluide et distributeur comprenant une telle tete de pulverisation.
DE202017002628U1 (de) 2017-05-16 2018-08-17 Claude Valerius In seiner Form veränderbares flexibles Behältnis
JP6961998B2 (ja) * 2017-05-17 2021-11-05 株式会社Soken 還元剤噴射弁
CN107670488A (zh) * 2017-09-30 2018-02-09 江苏天立方环保工程有限公司 侧进式高效脱硫喷头
CN115055017B (zh) * 2022-06-23 2023-08-04 重庆大学 斜向旋流式离心雾化喷淋装置

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DE3710788A1 (de) * 1987-03-31 1988-11-10 Wolfgang Fuhrig Handdruckzerstaeuber

Also Published As

Publication number Publication date
IT1094411B (it) 1985-08-02
JPS5459613A (en) 1979-05-14
DK151045B (da) 1987-10-19
DK340378A (da) 1979-02-03
EP0000688A3 (en) 1979-02-21
FR2399282A1 (fr) 1979-03-02
BR7804953A (pt) 1979-03-06
FI782247A (fi) 1979-02-03
NO151649C (no) 1985-05-15
DE2826784A1 (de) 1979-02-15
AR219333A1 (es) 1980-08-15
ATA519478A (de) 1990-07-15
IL55155A0 (en) 1978-09-29
JPS6312664B2 (fr) 1988-03-22
DK151045C (da) 1988-03-14
ES470662A1 (es) 1979-02-16
DD140713A5 (de) 1980-03-26
IN150150B (fr) 1982-07-31
DE2826784C2 (fr) 1988-10-13
IE781548L (en) 1979-04-14
AU521493B2 (en) 1982-04-08
FI64331B (fi) 1983-07-29
IE48169B1 (en) 1984-10-17
AU3810378A (en) 1980-01-24
FI64331C (fi) 1983-11-10
PT68370A (en) 1978-09-01
IT7822318A0 (it) 1978-04-14
AT392044B (de) 1991-01-10
EP0000688A2 (fr) 1979-02-07
NO782630L (no) 1979-02-05
NO151649B (no) 1985-02-04
FR2399282B1 (fr) 1988-06-10

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