EP0000688A2 - Tête de pulvérisation - Google Patents

Tête de pulvérisation Download PDF

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Publication number
EP0000688A2
EP0000688A2 EP78810011A EP78810011A EP0000688A2 EP 0000688 A2 EP0000688 A2 EP 0000688A2 EP 78810011 A EP78810011 A EP 78810011A EP 78810011 A EP78810011 A EP 78810011A EP 0000688 A2 EP0000688 A2 EP 0000688A2
Authority
EP
European Patent Office
Prior art keywords
nozzle
annular chamber
outlet
wall
feed
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
EP78810011A
Other languages
German (de)
English (en)
Other versions
EP0000688A3 (en
EP0000688B1 (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 for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • B65D83/16—Actuating means
    • B65D83/20—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
    • B65D83/771—Containers or packages with special means for dispensing contents for dispensing fluent contents by means of a flexible bag or a deformable membrane or diaphragm
    • 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 further relates to devices in which the new spray nozzle is used, and to processes for their production.
  • a spray nozzle of the type described in the opening paragraph is known from the U.S. Patent 3,652,018 by John Richard Focht is known and is used for the mechanical "break-up" of a liquid flow to form a spray cloud of droplets.
  • This known nozzle is easier to manufacture than one with similar basic features, designed in U.S. Patent 3,083,917 by Robert Abplanalp et al.
  • the feed channels of the known Focht nozzle are separated from one another by separating bodies such as guide 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.
  • they should have a particle size between 5 and 10 ⁇ , in particular for hair varnish, in order to achieve a rapid evaporation time, so that streaking of the hair is avoided when the consumer squeezes the hairstyle after spraying.
  • Air fresheners and insecticides must evaporate quickly or hover in the air so that they do not become furniture. Stain walls, carpets or parquet floors.
  • the sprayed product must be sufficient despite the finest particle size have 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 (propellantless 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 with relatively low pressure, but is simple 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;
  • An additional turbulence stage is preferably interposed between the feed line and the annular chamber of the first turbulence stage, the feed line comprising at least two feed channels running essentially in the axial direction of the central axis of the nozzle, and the additional turbulence stage comprising at least two feed channels running in the flow direction of the central axis of the nozzle, of which in each case one is connected with its inlet opening to one of the feed channels and opens into the aforementioned annular chamber with its outlet opening.
  • the obstacle can be a deflecting edge protruding into the liquid through the feed channels in the outer wall area or in the inner wall area covering the orifice chamber on the side surrounding the nozzle outlet include the side wall of the nozzle interior.
  • the impact surface can be formed on a shoulder in the side wall of the interior of the nozzle, the shoulder preferably being attached in that region of the side wall of the interior of the nozzle which is on the opposite side of the interior of the nozzle with respect to the nozzle outlet.
  • the flow cross-section of the feed channel before the step is preferably larger than that of the same feed channel after the step.
  • On the p rall Structure can at the mouth of a supply duct may be provided preceding to the annular chamber of the directly following its turbulence level.
  • a peg-like projection protrudes from the bottom wall of the nozzle interior opposite the nozzle outlet, at least as far as the inlet side of the nozzle outlet, at least one passage gap being left between the front end of this projection and the inlet edge of the nozzle outlet from the orifice chamber to the nozzle outlet.
  • the root zone of the projection is preferably cylindrical and coaxial with the center axis of the nozzle, and the distance of its end face, which is designed as an end face, from the side wall of the inside of the nozzle containing the inlet side of the nozzle outlet should preferably be at most 0.1 mm.
  • the projection can be pointed towards the nozzle outlet, the distance of its front end from the inlet edge of the nozzle outlet should preferably be at most 0.05 mm.
  • the end face of the projection which is surrounded by the annular chamber of the first turbulence stage, lies against the inlet of the nozzle outlet, and between the front end of the projection and the side wall adjacent to it, which contains the inlet side of the nozzle outlet
  • At least two secondary passages for liquid are provided on the inside of the nozzle each extend in a plane intersecting the nozzle outlet central axis from the annulus to the nozzle outlet.
  • the cross section of the annular chamber which remains around the peg-like projection and into which the feed channels of the outermost turbulence stage open, is preferably larger than the cross section of the annular chamber into which the feed channels of the subsequent turbulence stage open, and the cross section of the latter annular chamber is then larger than that of an innermost ring chamber into which the secondary passages open.
  • each feed channel and each secondary passage at its junction is preferably at most one third of the cross section of the annular chamber into which it opens.
  • the inlet openings of the feed channels of a subsequent turbulence stage in the inner side wall of the annular chamber located in front of this turbulence stage are advantageously offset somewhat in relation to the outlet openings of the feed channels of the preceding turbulence stage opening into this annular chamber, counter to the direction of flow of the liquid flowing into this annular chamber through the latter feed channels.
  • inlets can be provided for a second medium, each of which leads from the outer wall of the nozzle housing into an annular chamber. From the inlets for a second medium, each can lead from the outer wall of the nozzle housing into an annular chamber, into which the inlet opens between the mouths of two adjacent supply channels opening from the outside into the annular chamber.
  • the inlet between the mouths of two adjacent feed channels opening from the outside into the annular chamber can open tangentially to the direction of flow through the annular chamber.
  • the spray nozzle in the inlets for a second medium, preferably increases in the portions of each annular chamber of un - indirectly the junction downstream from the from the outside opens into the annular chamber upstream of said inlet for a second medium supply channel to Immediately upstream of the confluence of the next following in the flow direction from the outside opening into the annular chamber, the flow cross-section of the annular chamber, so that when the liquid flows through the externally opening supply channels and second medium is sucked in through the annular chamber
  • the front end of the protrusion be formed as end face and form the bottom surface of a cone-shaped space; furthermore, the interior of the nozzle can be formed as a cavity encompassing the annular chamber of the first turbulence stage and the orifice chamber, in the bottom side of the housing facing away from the nozzle outlet, and the front end of the projection can form a truncated cone which tapers towards the nozzle outlet and which, with its jacket wall, connects to a suitably designed inner wall of the cavity, which surrounds the inlet side of the nozzle outlet, lies tightly, in which case grooves are provided in the lateral surface of the truncated cone or in the upper wall of the cavity touching it, or in both, which form the aforementioned feed channels of the first turbulence stage.
  • These grooves can end in the cone wall at a distance from the nozzle outlet and form at their end a deflection threshold which represents a break-up obstacle with the smooth region of the cone wall which extends to the nozzle outlet.
  • These grooves can also represent sections of a helix with a decreasing diameter after the nozzle outlet.
  • the invention also relates to a nozzle carrier head with a spray nozzle inserted into an outer wall thereof in one of the above-described embodiments and with a main line for liquid to which the feed lines are connected and which is characterized in that the axis of the main line runs perpendicular to the nozzle outlet opening, that the main line ends blindly on an inner wall of the nozzle carrier head, that at least one first feed line has its inlet opening for liquid near the blind end of the main line and that at least a second feed line has its inlet opening for liquid at a greater distance from said blind end, and that the main line between the inlet opening of the second feed line and that of the first feed line has a shoulder projecting into the main line with the wall of the nozzle carrier head, whereby the first feed line is longer than the second feed line.
  • the surface of the shoulder running transversely to the axis of the main line can form an acute angle with the wall of the main line, in which the inlet opening of the second feed line lies, from the apex of which it faces inwards away from the inlet opening of the first feed line up to a common edge with the wall of the main line containing the inlet opening of the first feed line.
  • a first area of the main line which leads from the mentioned edge to the inlet opening of the first feed line and ends blindly on the inner wall of the nozzle carrier head, can have a larger cross-section in relation to the longitudinal axis of the main line than the second area of the main line, which refers to the Transverse surface of the shoulder, wherein the ratio of the acute angle of inclination of the shoulder transverse surface against said longitudinal axis to the acute angle of inclination of the inner wall of the nozzle carrier head, which represents the blind end of the main line, against the same longitudinal axis, preferably proportional to the ratio of the cross section of the first area to the cross section of the second Area of the main line.
  • a propellant-free spray can for dispensing liquid product with an inner bag made of deformable, non-expandable material for receiving the product, an outer wrapping element made of expandable rubber-like macromolecular material, an energy storage, arranged around the inner bag and attached to the bag - Tel connected product outlet, a valve device arranged between the bag and the product outlet, the output of product from the bag through the product outlet, and a rigid core housed inside the bag, the cross-sectional area of which is at least 40% larger than that in the same Sectional internal cross-sectional area of the wrapping element in the unstretched state, and wherein the maximum filling volume of the bag in the fully unfolded state without expansion of the bag wall limits the expansion of the wrapping element to a maximum value which is within the range of linear stress
  • the workmanship of the above-mentioned rubber-like macromolecular material lies in the product outlet of the bag having a spray nozzle according to the invention installed in one of the above-described embodiments.
  • a fire brigade syringe with a main water feed line can have an injection nozzle according to the invention as the discharge nozzle.
  • Such a fire engine with main water supply line and dispensing nozzle can also be equipped with a container for fire extinguishing agent with an inlet line for fire extinguishing agent from the container that opens into the main water supply line just before the nozzle.
  • An aerosol spray can with a pressure container, accommodated in this flexible product bag with a dispensing valve inserted in an opening of the latter and an actuating head carried by the latter, and in the latter, a spray nozzle according to the invention connected to the valve of the type described above may have a pressure chamber in the pressure vessel below the bag, which is separated from the inside of the pressure vessel by a transverse wall and filled with a pressure-generating medium, and a pressure compensation valve can be built into the transverse wall, by means of which medium from the pressure chamber into the area surrounding the bag
  • the inside of the pressure vessel can flow in in sufficient quantity to compensate for the pressure drop which arises in the interior of the pressure vessel when product is dispensed from the bag.
  • the pressure compensating valve may comprise a differential piston and a housing with two outlets and seats for the differential piston provided in these, one outlet opening into the interior of the pressure vessel and the other into the pressure chamber.
  • the differential piston is preferably spring-loaded into the closed position in the outlet to the pressure chamber.
  • the embodiment of the spray nozzle shown in Figures 1 and 1A comprises a nozzle body 1, consisting of the upper sleeve part, or the D üsenau touchhfix 2, which center the outer opening has a nozzle outlet 3 in its upper outer end surface 2a, as well as from the lower or inner half 4 of the nozzle body 1, which carries a nozzle core 6 on the end face 5a of its base part 5 facing the nozzle outlet 3.
  • the sleeve part 2 has on its lower end surface 2b facing the inner half 4 a cylindrical cavity 7 which continues upwards into a frustoconical recess 8, at the apex of which the nozzle outlet 3 opens outwards.
  • the nozzle core 6 has a cylindrical base part 9 of smaller diameter than the inside diameter of the cavity 7, and above it a conically bevelled edge surface 10 which, when the two nozzle pieces 2 and 4 are assembled, lies sealingly against the conical end wall of the recess 8.
  • feed channels 11 which extend parallel to the central axis MA of the nozzle 3 and which extend through the nozzle outlet 3 and are symmetrically arranged in the axial direction, to which feed channels 12 are connected, through which pressurized liquid to be sprayed into the between the end face 5a, the foot part 9 and the upper end wall and in each case an annular part 13 of a first turbulence stage of the nozzle which remains inwardly projecting up to an axial edge 19 of the outer circumferential wall of the cavity 7.
  • the cylindrical foot part 9 In the cylindrical foot part 9 are two axially extending grooves 14 to the central nozzle MA MA as sections of secondary supply channels are provided, the latter continuing in the conical edge surface 10, each formed as a narrowing in the flow direction helical sections Nutemoder gears 15, which extend to the turbulence or vortex chamber 16, which from the upper end face 10a of the nozzle core 6 and the inner wall of the cone-shaped recess 8 is limited.
  • the cross-sectional area of the passages 15 gradually decreases towards their outlet openings, ie their openings into the swirl chamber 16.
  • this obstacle comprises a step 18a at which a change in direction of the liquid flow occurs, both the area of the side wall of the subsequent passage 15 that is closest to the end surface 2a and the area of the side wall of the subsequent passage 15 that slants into the liquid flowing through the passage section 14 - or impact surfaces act.
  • the two nozzle halves 2 and 4 can be produced in a simple manner by known injection molding processes and can be thermally welded or glued to one another.
  • frame connections can also be provided on the connection periphery of the two halves.
  • the nozzle lower body l used in the lateral head wall 21 in a conventional manner. Of course, it can also be inserted into the atomizer head face 20a.
  • FIG. 2 the arrangement of two primary feed channels 12, which open tangentially in the flow direction in the annular chamber 13, the inside of its wall forming the wall edge 19 with the outer wall of the annular chamber 13, while two further feed channels 12 ', the are connected to two further feed channels 11 ', are shown in dashed lines.
  • Axial passage sections 14 and the passages 15 then lead from the annular chamber 13 to the swirl chamber located above the end face 10a of the nozzle core 6 and further to the nozzle outlet 3.
  • FIG. 3 Another embodiment of the spray nozzle is shown in FIG. 3.
  • the passage sections 14 and aisles 15 are omitted and replaced by grooves 24 and 25, which are provided in the conical inner wall of the recess 8 and run in planes that run radially to the central axis of the nozzle or, preferably in accordance with a helix with a diameter that decreases toward the nozzle outlet 3, to form supply channels .
  • the upper walls 24a and 25a which are inclined fairly steeply into the flow of the liquid and are located after the nozzle outlet 3, represent obstacles in the flow path which promote the "mechanical break-up" of the liquid.
  • the frustoconical recess 8 thus jointly encloses a turbulence chamber 16 which extends approximately to the region of the upper ends of the grooves 24 and 25, and an orifice chamber 17 via this.
  • the Zerstäuberbetus Trentskopf 30 shown in Figure 4 in longitudinal section contains in its side wall 30a: recess 31, in which the position shown in a furthermonyaform, üsenhülse from a D 33 and a current in the inserted in derinnenendwand the latter provided recess 33a nozzle core 32 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 side peripheral wall 32b, which is closely adjacent to the side wall 33c of the recess 33a, and which in the when the nozzle core 32 and nozzle sleeve are assembled 33 created nozzle form the hollow nozzle interior consisting of chambers and channels.
  • the depressions mentioned are particularly illustrated in the illustrations of the nozzle core 32 according to FIGS. 5 and 6.
  • 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 four feed channels 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, lead to depressions in the end face 32a, which do so Form turbulence system of the nozzle.
  • this comprises four feed channels 36, each with its inlet opening 36a connected to the front end of one of the axial feed channels 35, each of which is skewed to the nozzle center axis in a perpendicular intersection of this axis.
  • the annular chambers and channels are hermetically or at least liquid-tightly covered 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 channels and annular chambers onto the nozzle outlet 41.
  • the most ideal taper of the feed channels 36 is achieved by drawing a tangent to the periphery of the annular chamber 37 from the channel side 35A and a straight line from the channel side 35B through the intersection 37A of this tangent with the annular chamber 37.
  • the width of the annular chamber 37 is then advantageously selected such that it is equal to the width of the opening 36b of the channels 36 in the annular chamber 37.
  • a channel 36 is created in the annular chamber 37 in front of a junction 36 b.
  • the most ideal location for the edge 38d of the inlet opening 38a of the secondary passages 38 is obtained when the first contact point on the edge 36c between the straight line 35B-37 A and the R inghuntwandung 37a, a tangent is drawn to the periphery of the second annular chamber 39, and the most ideal The opening width of the entry openings 38a of the aisles 38 is achieved by this tangent at the point of contact 39A with the Zicait6h "* Ringkanimer 39 a straight line is drawn to the point 35A of the channel side edge 35a of the feed channel 35.
  • a width is then selected for the annular chamber 39 which is identical to the sum of the widths of the mouths of the passages 38 therein, whereby the The diameter of the peg-like projection 40 is determined, the height of the channels 36 being unchanged, whereas the passages 38 are located between the two axial wall edges 38c and 38d from the entry point 38a
  • 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 channel 27 is significantly larger compared to the channels and passages mentioned connected to it. This oversized volume of the main feed channel 27 compared to the channels and passages is necessary on the one hand in order to bring the existing compressive force under which the liquid is effective to the channels 35 on the one hand, and on the other hand in order for the channels and passages to be slightly reduced by the slowed down amount of liquid , which is stored in the main feed channel 27, remain continuous.
  • the spraying performance 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.
  • FIGS. 4 to 6 show a further advantageous embodiment of the spray nozzle according to the invention.
  • the nozzle core 32 is similar to that shown in FIGS. 4 to 6, except that it starts the second annular chamber 39 with a turbulence chamber 45 which is formed by the projection 40 carrying an axially projecting annular flange 44 around its end face 40a.
  • the recess formed on the end face 40a within the latter delimits the turbulence chamber 45 inwardly, while the bottom surface 33b of the recess 33a of the nozzle sleeve 33 delimits this chamber on the outside, the annular bead 12, the outer diameter of which is somewhat smaller than the inner diameter of the annular collar 44 , something protrudes into the turbulence chamber 45.
  • the nozzle sleeve 33 is provided on its inner edge surrounding the recess 33a with a ring flange or a flange 28 which engages so firmly in a corresponding recess 28a of the actuating head 30. that it cannot be released from the actuating head 30 even by a liquid pressure that is under great pressure.
  • FIG. 9 shows a further embodiment of the nozzle core 32 with six feed channels 35, which lead to six feed channels 36 and which open into a gemt'ins.'nuen annular chamber 37, from which six sekunclaira passages 38 lead to the common second annular chamber 39, which is limited by the peg-like projection 10.
  • the spray nozzle according to the invention can be provided not only with two, but also with three or more successive turbulence stages, that is to say in addition to the channels, passages and annular channels 36, 37, 38 and 39
  • the nozzle core 2 can also contain the tertiary gears 48 and the annular chamber 49 and can be provided with a turbulence 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 increase conically, but gradually against the turbulence chamber 45 down; each step forms an obstacle leading to eddying and the narrowing of the passages is an acceleration factor for the liquid flow (FIG. 11)
  • FIG. 12 shows yet another embodiment of the nozzle core 32, in which the latter, in addition to the channels 36 and 38, also has inlet channels 29 whose inlet openings 29a 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 open tangentially to the outer side wall of the annular chamber 37 in this, at suction-generating points, between the mouths 36b of two adjacent feed channels 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 supply channel 36 becomes in the subsequent narrowing of the annular chamber 37, where it is accelerated again, whereby it causes suction as it flows past the mouth 29b of a passage 29, and all the more so because this mouth 29b is slightly behind (ie upstream) the entry point 38a Ganges 38 lies through which the liquid flows to the nozzle outlet 41.
  • the inlet channels 29 are provided to receive a second medium, e.g. Air to be sucked in and mixed with the liquid flowing through the interior of the nozzle.
  • the spray nozzle according to the invention is preferably used to dispense a product which is free of gas, in particular also propellant gas
  • a foam-forming product for example shaving cream
  • oil can also be poured in, but which also require a gas medium in order to emerge from a spray nozzle as a dust or spray cloud, by means of the spray nozzle according to the invention this gas medium (air) can pass through the inlet channels 29 are sucked in.
  • the cross section of the inlet channels 29 depends on the desired amount of air that is required for mixing and must therefore be adapted from case to case.
  • FIGs 14 and 15 an injection nozzle with a nozzle sleeve 33, and with an inserted into this nozzle core 32 is shown in which the four openings 29a, through which a second medium can be sucked in via the inlet channels 2 9, via passages 26a and an annular channel 26b (dashed line in Fig. 14) are connected to each other, which runs in the nozzle sleeve 33 and is connected to an inlet valve 22, with which the amount 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. 16 shows a longitudinal section through a loading actuating head with a different, 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 its end face 52a and peripheral wall 52b and are covered with a nozzle sleeve according to FIG. 7.
  • the nozzle body is preferably formed in one piece with the actuating head 50 and protrudes from the bottom 51b of the recess 51a in the side wall 51 to such an extent that there is enough play above and around it for the tight, tight insertion of the nozzle sleeve 53 into the side wall 51 of the actuating head 50 remains.
  • 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.
  • the angle of the blind end 57a of the narrowed channel part 57 with the nozzle center axis is flatter than the corresponding angle ⁇ of the blind end 56a of the shortened channel part 56.
  • These angled blind ends 56a and 57a serve as bouncing or baffle surfaces for the liquid flowing in the main feed channel 54 which is driven into the feed channels 35 by means of these rebound surfaces with more or less pressure.
  • the main feed channel 54 would be cylindrical there would be a back pressure at the blind end thereof, which would drive the liquid via the upper feed channels 35 at a higher pressure than via the lower feed channels 35.
  • FIGS. 17 to 19 show a new spray agent or sprayer free of trium agents.
  • This device is a propellant gas-free alternative to the known aerosol spray cans.
  • the spray device shown in FIG. 17 carries a spray nozzle according to the invention and is filled with a liquid to be dispensed.
  • the valve unit required in this device comprises an outer hollow core 128 which is mounted on the piston seat 129, the piston 131, the sealing ring 132 made of elastic material and the inner hollow core 130 which is mounted in the outer hollow core 128.
  • the space 133 between the outer hollow core 128 and the inner hollow core 130 serves as a liquid line to the piston 131.
  • the outer hollow core 128 is provided with the opening 134 at its rounded end and has a plurality of ribs 135 inside the opening 134.
  • the piston seat 129 is at that end which carries the outer hollow core 128, providing the bore 137 and also has a plurality of ribs around the opening 137 136.
  • the length of the inner hollow core 130 is held so that its ends lie firmly on the support ribs 135 and 136, respectively.
  • the container 138 which contains the liquid 139, is fastened to the piston seat 129, so that the outer and inner hollow cores 128 and 130 are located in the longitudinal axis of the container 138. This is surrounded by a rubber hose 140, which serves as an energy store.
  • the properties and physical qualities of the container 138 and the rubber hose 140 and the outer hollow core 128 have already been described in my above-mentioned patent (patent application no.
  • valve device which also includes the spray nozzle according to the invention, represents a preferred, particularly advantageous embodiment.
  • the arrangement of an inner hollow core 130 in the outer hollow core 128 is advantageous in that it requires the least installation work and also offers the possibility to change the cross-section of the fluid line 133 without significant cost when a particular pro - domestic product this should require.
  • the passages 141 of the piston 131 are to be substantially larger, in order to allow the liquid 39 to brake unrestrainedly via the main channel 104 of the actuating head 101 in the described channels, annular chambers and passages of the nozzle core 102 with full overpressure, under which they are by means of Rubber hose 140 is set to take effect.
  • the liquid 139 therefore flows through the opening 134 and between the ribs 135 to the intermediate space 133 and from there between the ribs 136 through the opening 137 to the sealing ring 132.
  • the passages 141 of the piston 131 are exposed, so that the pressurized liquid 139 can feed the main channel 104 and the beadhciebenen channels, annular chambers and passages of the Düsenkör pers 102, whereby the liquid eventually 139 emerges as a fine spray cloud via the nozzle outlet 111 from the spray nozzle according to the invention, for as long as the actuating head 101 is pressed downwards, which corresponds to the spray of a propellant aerosol spray can, but here without gas, in its function.
  • valve device shows that yet another object can be achieved with the valve device according to FIG. 17.
  • liquids filled in aerosol spray cans that settle out after a short period of storage and therefore have to be shaken before use in order to mix the sedimented material with the liquid phase of the product again.
  • small steel balls are used in the aerosol spray cans, which ensure the mixing process when shaken.
  • a sediment 142 is indicated at the bottom of the container 138, which has settled out of the liquid 139.
  • the inner hollow core 130 is here replaced by a filled, shorter inner core 143.
  • the G must e- weight of the inner core 143 of the density of the liquid to be fitted so check that it can be printed by either the liquid or of the pressure under which it occurs in the direction of the ribs 135 overall, but wherein a position of the device as shown in FIG. 18, always on the ribs 135 lies on. Furthermore, it must be shorter than the inner length of the outer hollow core 128.
  • the inner core 143 moves coaxially in the outer hollow core 128, sucks sediment particles 142 and liquid 139 via the opening 134 as it rises in the direction of the ribs 136 and ejects both when falling towards the ribs 135. This creates vortices in the sediment 142, which are transferred to the liquid 139, as a result of which an intimate mixture of the two phases is achieved.
  • the remaining parts function as described in Fig. 17.
  • FIG. 19 illustrates the use of a spray nozzle according to the invention in a fire-fighting sprayer.
  • a spray nozzle according to the invention is screwed onto a fire brigade syringe 90, the nozzle core 87 having the passages and annular chambers as shown in FIG. 11 and additionally being provided with the inlet channels 49a of FIG.
  • the syringe body 90 is provided with a screw-on connection piece 91, which weeps the bore 92, which is directed such that it opens into the syringe body 90 just behind the constriction 93, a liquid flowing in the syringe body 90 in the direction of the spray nozzle according to the invention exerts a suction on the bore 92 (Venturi system).
  • the screw connection 91 carries the container 94 and the riser pipe 95 attached to it, the sealing ring 96 sealingly connecting the syringe body 90 and the container 94 to one another.
  • a fire extinguishing agent 97 for example chlorobromomethane, is stored in the container 94. If water under pressure (eg 6 to 10 atm) flows in the syringe body 90, this sucks in the fire extinguishing agent 97 and mixes it with the water. As soon as this mixture comes into contact with the fire, the water cools the burning material through its high heat of vaporization, and since it is expelled as a fine mist from the fire engine thanks to the spray nozzle according to the invention, its large surface area prevents further oxygen access to the burning material, while For example, chlorobromomethane 97 enables the oxygen still present to accumulate on the CO molecules via the water vapor acting as a catalyst (Chemistry Lexicon Römpp).
  • chlorobromomethane 97 enables the oxygen still present to accumulate on the CO molecules via the water vapor acting as a catalyst (Chemistry Lexicon Römpp).
  • the fire extinguishing agent can also be sucked in via the control valve 22 and the ring channel 26 of the spray nozzle according to FIGS. 14 and 15 and mixed with the extinguishing water, which has the advantage that a very large container can be used for the fire extinguishing agent 97 , which only requires a flexible supply line to the inlet port of the control valve 22.
  • F ig. 20 shows a section through a propellant-free spray can according to the invention which is filled with a liquid to be atomized.
  • the valve unit required in the device comprises a core 301 made of plastic, which consists of two parts 301A and 301B.
  • Part 301A is a container that is open at its upper end 308, while its lower end 304 is closed and advantageously has an ovoid shape.
  • the part 301B of the core 301 has a seat 305 with a central channel 306, which opens into a transverse channel 307 at its lower end.
  • the upper end 308 of the part 301A is tapered so that it can be connected to the lower end of the part 301B to form the complete core 301.
  • part 301B has two thickenings 309 and 310 as well as a tubular connecting and sealing element, which advantageously consists of synthetic rubber of the polyacrylonitrile type, for example a compressible synthetic material, which is not attacked by contact with product 312 may be and does not attack.
  • the seal 311 seals a bag 313, which consists of a coated aluminum foil with advantageously four layers, namely polyester-aluminum-polyester-polyethylene or polypropylene, of which layers the latter comes into contact with product 312.
  • the bag 313 is advantageously produced by welding an aluminum foil folded along the line 314 in FIG. 20A, the welding having to be done along the line 315.
  • the bag 313 has a plurality of lamellae 317 around its outlet opening 316. This makes it possible to firmly connect the bag 313 to the core 301 in the manner described below.
  • the bottom of the bag 313 represented by the fold line 314 unsealed be formed by the fold of a continuous laminated film, since the pressurized product 312 expresses predominantly against the bottom of the bag 313, since it is surrounded by a rubber tube 318, the strength at its lower end 319 in F be, but. 20 is open.
  • the core 301 which carries the bag 313 together with the seal 311, lies within the rubber hose 318.
  • the latter is advantageously made of practically pure natural rubber, which has a hardness of the order of 45 ° shore.
  • the central channel 306 is designed such that it can receive a piston 320, which is provided with a transverse channel 321 and a central channel 322, the lower end of which opens into the transverse channel 321.
  • the piston 320 also has a plurality of axial channels 320a which are separated from one another by axial ribs which end in extensions of fingers 323 which protrude into the cylinder formed by the central channel 30b.
  • the sealing washer 324 has a central channel 325, the diameter of which is dimensioned such that the sealing washer 324, when placed around the piston 320, opens closed with great force against the transverse channel 321.
  • the sealing washer 324 lies in the seat 305, which has a shoulder 320b on which the sealing washer 324 rests.
  • the core 301, the bag 313, the hose 318, the seal 311, the piston 320 and the sealing washer 324 are by means of a sleeve and a ring 328, which lies against the lower peripheral zone of the sleeve 326 and into a groove 327 on the inside the sleeve 326 protrudes, held together.
  • the ring 328 has notches 330 in an upper ring part and an inner ring reinforcement 331.
  • the latter is arranged so that when the parts are joined, they come to lie between the thickenings 309 and 310 of the core 301.
  • the inside of the sleeve 326 is conical, so that its central hole 332 widens towards the bottom.
  • the ring 328 is placed over the hose 318 and the fins 317 until it comes to lie against the seat 305 of the core 301, whereupon this unit is so is inserted into the sleeve 326 so that the portion 322a of the piston passes through the hole 332 of the sleeve 326. Since the inside of the sleeve 326 is conical, the notches 330 in the ring 328 close so that the fins 317, the hose 318, the bag 313, the seal 311 and the core 301 are pressed firmly against one another.
  • the ring reinforcement 331 comes to lie between the two thickenings 309 and 310, so that any axial movement between the different parts is impossible.
  • the reinforcement 329 on the ring 328 comes to rest in the groove 327 of the sleeve 326, which. che presses the washer 324 against a ridge 305a of the seat 305 so that the unit becomes airtight. Since the ring 328 presses against the seat 305 from below and the sleeve 326 presses against the seat 305 from above, the latter cannot be displaced.
  • the part 322a of the piston 320 which surrounds the central channel 322, carries an actuating head 334, in which an inventive spray nozzle 354 with feed channels 348 and 349 is inserted.
  • the atomizer unit just described is installed in a can 335, which can be closed with a cover 336. Since neither of these two parts is subjected to any pressure, they can be made from thin, cheap plastic or even from cardboard.
  • a recess 338 is drilled with an opening 339 in the can 335.
  • the floor 337 is provided with parts 340 which indicate a position "0".
  • a rotary part 341 is inserted into the recess 338 and carries a rod 332 and a leaf spring 342 as well as an indicator 344.
  • the rod 342 protrudes through the opening 339 into the interior of the can 335, whereas the leaf spring 343 bears against the bottom of the can 335, so that the rod 342 at any time with slight pressure against the outside of the outer wall of the zone 318a of the hose 318 presses.
  • the rod 342 assumes the position indicated by dashed lines in FIG. 21 and the display 344 lies coaxially with the parts 340.
  • FIG. 21 illustrates the use of the spray nozzle according to the invention in an aerosol spray can of a known type
  • FIG. 22 shows a reducing valve that can be used therein.
  • a pressure container 401 which carries an inventive spray nozzle with nozzle outlet 402a in an actuating head 402
  • the flexible product bag 403 from which product is dispensed in a controlled manner by means of the dispensing valve 440, and on which the gas pressure in the chamber 404 acts, which, thanks to the pressure source 405 and is kept constant by means of the reducing valve 406.
  • the pressure source 405 consists of an inverted can 407, the bottom of which contains the seat of the reducing valve 406 and which is provided with the flange 408.
  • the pressure source 405 is introduced into the pressure vessel 401 in such a way that the flange 408 provided with the seal 409 comes to rest on the flange 410 at the outer end of the vessel 401.
  • the bottom cover 412 made of the same material as the pressure vessel 401 carries the seal 413 and is ge via the flange 410 flanges, clamping the flange 408 and the seals 409 and 413, which leads to a pressure-proof closure of the pressure vessel 401.
  • the bottom cover 412 is provided with the check valve 414. Thanks to this arrangement, it is now possible to put the product container 403 under a constant pressure which is only kept as high as is necessary for the quality of the particle size to be generated with the spray nozzle according to the invention, for example 2 atm.
  • the pressure source 405 is therefore filled with a medium that generates a correspondingly higher pressure, so that its pressure is able to continuously compensate for the pressure reductions in the space 404 caused by the volume changes in the product container 403 via the reducing valve 406, that is to say the pressure in the space 404 increases constantly hold.
  • the reducing valve (Fig. 29) works as follows:
  • the valve housing 430 is provided at one end with the opening 415, which is in communication with the chamber 416, the diameter of which widens inwards through the conical part 417 and finally in to pass over a hollow cylinder 418.
  • the other end of the housing 430 shows the opening 419, which is provided with the internal thread 420, into which the nut 421 is screwed, the sealing ring 424 sealing the chamber part 418.
  • the housing 430 contains the piston 425, which is supported such that its conical end 426 can come into contact with the conical seat 417 and its conical end 427 can come into contact with the conical seat 423.
  • the inside of the piston 425 is provided with the line 428, the axial branch of which opens out in the center of the end face 429. This is based on the spiral spring 431, which presses the piston 425 with its conical end 427 against the conical seat 423.
  • the piston 425 moves axially so that its conical end 426 against the conical seat 417 is pressed.
  • the pressure of the pressure source 405 thus propagates into the pressure container 401 via the line 428.
  • the surface of the end face 429 of the piston 425 is considerably larger than that of the cone tip 432 protruding into the opening 419.
  • the pressure in the space 404 although smaller than that of the pressure source 405, is able, thanks to the large surface 429 and the additional effect of the spring 431 to axially move the piston 425 towards the opening 419 again each time the pressure in the space 404 has reached the value for which the surface 429 and the force of the spring have been designed.
  • the aforementioned device can. are manufactured very cheaply.
  • the can 407 can be made of a sturdy plastic material, since it only has to be gas-tight to a limited extent, because the possibly diffusing pressure can only propagate into the container 401, but could not cause any significant change in the pressure there.
  • the housing 430 can be injection molded directly onto the bottom 407, which means that no assembly is required.
  • the piston 425 can also be made from plastic; the same applies to the nut 421, which in this case only needs to be a cover that can be high-frequency welded to the housing 430, which would also eliminate the thread 420.
  • the spring 431 need not necessarily be present.
  • the surface area of the end face 429 can be calculated in such a way that it serves as the contact surface of the pressure from the space 404.
  • the conical surfaces 417, 423, 426 and 427 must be carefully machined, whereby these surfaces can be polished to a high gloss and advantageously chrome-plated in the injection molding tool.
  • Pressure reducing valves and their use with a pressure source are known. However, the above-described allows particularly cheap agents to be used when using the spray nozzle according to the invention.
  • the spray nozzle according to the invention it is possible, as described above, to ensure a satisfactory particle size and constant discharge rate with a purely mechanical, low expulsion pressure.
  • the reducing valve described above and similar means must be provided in order to keep the pressure constant.
  • the spray nozzle according to the invention can therefore be used in exactly the same way as is the case with known nozzles in the conventional aerosol spray cans. Most consumers of aerosol cans and other atomizing devices fail to put an existing protective cap over the spray nozzle after use.
  • the spray nozzle can, especially for hair lacquers and F arblacken, clogging by the carrier solvent evaporates, leaving a thicker from use to use nascent resist layer inside the channels and passages of the spray nozzle.
  • the spray nozzle according to the invention can be provided with a cap 433, which remains firmly connected to the spray nozzle 402 with the aid of a snap closure 441 and an opening 434 is provided in the side wall of the spray nozzle.
  • the cap 433 covers the spray nozzle 402 with its side wall.
  • a spring 436 which is accommodated in the interior 437, has a substantially smaller force than the spring 438, which holds the valve body 439 of the dispensing valve 440, but is large enough to hold the cap 433 in Resting position on the To hold the actuating head 402 in the maximum raised position, as a result of which the opening 434 comes to lie above the nozzle outlet 402a, so that the nozzle outlet 402a is tightly covered by the side wall of the cap 433. This avoids both dusting of the spray nozzle 402 and evaporation of the solvent of the product remaining in it after a spraying process.
  • the actuating head 402 and the cap 433 are either provided with guide rails for the purpose of orientation of their position relative to one another or are of non-circular outer or inner cross section. These cross sections are preferably e.g. oval or elliptical so that the opening 434 is always perpendicular to the nozzle outlet 402a.
  • the cap 433 If one presses on the cap 433 from above, it initially moves downwards until the spring 43G is compressed; as a result, the opening 434 in the cap side wall is aligned with the nozzle outlet 402a. With further downward pressure, the stronger spring 438 of the dispensing valve 440 is compressed and the valve 440 opens. As soon as the pressure on the cap 433 ceases, the stronger spring 438 first closes the valve 440 and only then does the weaker spring 436 raise the cap 433 into the closed position, in which the nozzle outlet 402a is again sealed by the cap side wall below the opening 434.
  • a thin elastic covering 422 can be attached to the inner wall of the cap as a seal.
  • 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.
  • the container in which the product to be atomized by means of the spray nozzle according to the invention is stored can easily be sealed against air, spores, bacteria and other factors which can destroy the product, and can also prevent the aroma substances contained in the product from accumulating Volatilize storage.
  • the element storing the energy for the expulsion of the product stored in the container is suitable in the embodiment according to FIGS. 17, 18 and 20 to expel the entire product evenly and in linear consumption from the container. It is designed so that the product can be stored for several months without losing a significant part of the expulsion energy.
  • the residual energy of the element is sufficient to drive the product completely out of the container and to generate a spray cloud, the particles of which are so fine that a product mist can be reached even under the most unfavorable conditions, such as a low squeezing pressure.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Nozzles (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Fire-Detection Mechanisms (AREA)
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
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
CA288724 1977-10-14
CH2024/78 1978-02-24
CH202478A CH646619A5 (en) 1977-10-14 1978-02-24 Spray nozzle

Publications (3)

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

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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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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
CN114950767A (zh) * 2022-06-20 2022-08-30 东莞市花界生活科技有限公司 一种防逆流雾化喷嘴及扩香装置
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US1594641A (en) * 1921-06-25 1926-08-03 Starr Fletcher Coleman Method of and apparatus for atomizing
US2823954A (en) * 1956-09-10 1958-02-18 Delavan Mfg Company Unitary spray nozzle and filter assembly
US3100084A (en) * 1961-08-01 1963-08-06 Gulf Research Development Co Constant flow rate fuel injection nozzle
NL135002C (fr) * 1965-12-16
US3433420A (en) * 1966-09-20 1969-03-18 Leeman F Strout Spray nozzle and valve
NL145512C (fr) * 1970-06-12
GB1390937A (en) * 1971-04-23 1975-04-16 Unilever Ltd Pressurised aerosol dispensing device
US4011996A (en) * 1973-10-25 1977-03-15 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Swirl type pressure fuel atomizer
JPS5152509A (ja) * 1974-11-02 1976-05-10 Toyo Aerosol Ind Co Eazooruyofunshabotan
US4036439A (en) * 1975-09-24 1977-07-19 Newman-Green, Inc. Spray head for nebulization of fluids

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2533838A1 (fr) * 1982-10-01 1984-04-06 Spraying Systems Co Buse de pulverisation
GB2128107A (en) * 1982-10-01 1984-04-26 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
WO1988010221A1 (fr) * 1987-06-26 1988-12-29 Werding Winfried J Dispositif pour le stockage et la distribution controlee de produits sous pression
AU606182B2 (en) * 1987-06-26 1991-01-31 Winfried Jean Werding Device for storing and controlled dispensing of pressurized products
GB2244013A (en) * 1990-05-15 1991-11-20 Bespak Plc An actuator for a dispensing container
EP0528665B1 (fr) * 1991-08-19 1995-11-22 Calmar Inc. Capuchon de protection et dispositif d'essuyage pour orifice de décharge de distributeur
WO1994027729A1 (fr) * 1993-05-25 1994-12-08 Winfried Werding Buse de pulverisation servant a la regulation d'un debit par unite de temps
US5722598A (en) * 1993-05-25 1998-03-03 Werding; Winfried Spraying nozzle for regulating the rate of flow per unit of time
FR2821573A1 (fr) 2001-03-05 2002-09-06 Verbena Corp N V Buse de pulverisation a canaux profiles
WO2003061839A1 (fr) 2002-01-25 2003-07-31 Verbena Corporation N.V. Buse de pulverisation a diametre reduit
EP2241687A1 (fr) 2009-03-31 2010-10-20 Woongjin Coway Co., Ltd. Appareil de distribution d'eau de stérilisation, et bidet et wc dotés de celui-ci
US9284112B2 (en) 2010-04-13 2016-03-15 The Salford Valve Company Limited Aerosol spray device
US9856070B2 (en) 2010-04-13 2018-01-02 The Salford Valve Company Limited Aerosol spray device
US11059659B2 (en) 2010-04-13 2021-07-13 The Salford Valve Company Limited Aerosol spray device
CN102985188A (zh) * 2010-06-15 2013-03-20 株式会社大造 喷口机构
CN102985188B (zh) * 2010-06-15 2015-12-16 株式会社大造 喷口机构
US9527092B2 (en) 2010-06-15 2016-12-27 Daizo Corporation Nozzle hole mechanism
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
CN114950767A (zh) * 2022-06-20 2022-08-30 东莞市花界生活科技有限公司 一种防逆流雾化喷嘴及扩香装置
CN115055017A (zh) * 2022-06-23 2022-09-16 重庆大学 斜向旋流式离心雾化喷淋装置
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

Also Published As

Publication number Publication date
DD140713A5 (de) 1980-03-26
ES470662A1 (es) 1979-02-16
AR219333A1 (es) 1980-08-15
AU3810378A (en) 1980-01-24
NO151649B (no) 1985-02-04
AU521493B2 (en) 1982-04-08
FR2399282A1 (fr) 1979-03-02
ATA519478A (de) 1990-07-15
IT1094411B (it) 1985-08-02
IE48169B1 (en) 1984-10-17
DE2826784C2 (fr) 1988-10-13
FR2399282B1 (fr) 1988-06-10
IT7822318A0 (it) 1978-04-14
EP0000688A3 (en) 1979-02-21
DK151045B (da) 1987-10-19
JPS6312664B2 (fr) 1988-03-22
FI64331C (fi) 1983-11-10
NO782630L (no) 1979-02-05
FI782247A7 (fi) 1979-02-03
IN150150B (fr) 1982-07-31
AT392044B (de) 1991-01-10
DE2826784A1 (de) 1979-02-15
PT68370A (en) 1978-09-01
IE781548L (en) 1979-04-14
DK151045C (da) 1988-03-14
DK340378A (da) 1979-02-03
IL55155A0 (en) 1978-09-29
JPS5459613A (en) 1979-05-14
FI64331B (fi) 1983-07-29
NO151649C (no) 1985-05-15
BR7804953A (pt) 1979-03-06
EP0000688B1 (fr) 1984-01-11

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