EP3706916A1 - Buse en deux pièces pour diffuseurs d'aérosol - Google Patents
Buse en deux pièces pour diffuseurs d'aérosolInfo
- Publication number
- EP3706916A1 EP3706916A1 EP18789645.1A EP18789645A EP3706916A1 EP 3706916 A1 EP3706916 A1 EP 3706916A1 EP 18789645 A EP18789645 A EP 18789645A EP 3706916 A1 EP3706916 A1 EP 3706916A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- channels
- cavity
- inner part
- outer part
- 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
Links
- 239000004479 aerosol dispenser Substances 0.000 title claims abstract description 12
- 238000004891 communication Methods 0.000 claims abstract description 3
- 230000007423 decrease Effects 0.000 claims description 5
- 230000000717 retained effect Effects 0.000 claims description 5
- 239000007921 spray Substances 0.000 description 16
- 239000000243 solution Substances 0.000 description 7
- 229920006324 polyoxymethylene Polymers 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 210000002445 nipple Anatomy 0.000 description 3
- 229930182556 Polyacetal Natural products 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 239000000443 aerosol Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000021615 conjugation Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005865 ionizing radiation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
- B05B1/06—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in annular, tubular or hollow conical form
-
- 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
- B05B1/3415—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 swirl imparting inserts upstream of the swirl chamber
-
- 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
- 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
- B65D83/75—Aerosol containers not provided for in groups B65D83/16 - B65D83/74
- B65D83/753—Aerosol containers not provided for in groups B65D83/16 - B65D83/74 characterised by details or accessories associated with outlets
Definitions
- the invention relates to a two-piece nozzle for an aerosol dispenser.
- a diffuser serving firstly to actuate the valve and secondly to direct the jet in a predefined direction.
- the diffuser is provided with a conduit leading from the stem of the valve to an outlet port.
- a nozzle In order to obtain a spray with finely divided droplets and not a jet of liquid or drops, it is generally placed at the outlet of the conduit a nozzle.
- This nozzle is traditionally constituted by a bucket-shaped insert provided in its bottom with a small central orifice and fitted on a stud made in the diffuser at the end of the conduit.
- the diffuser duct ends with one or more longitudinal channels distributed over the circumference of the post.
- Another solution is to place in a cavity formed at the end of the diffuser duct a nozzle in two parts, namely an inner part fulfilling the function of the stud of the diffuser and an outer part similar to the insert.
- the longitudinal channels are then placed either on the inner part or on the outer part.
- Such a two-piece nozzle for example from US 9,527,092 B2, is known.
- it is placed in the bottom of the insert or on the end face of the tenon or the inner part of the convergent channels opening tangentially on a circular or annular turbulence chamber surrounding the outlet orifice. This is called a mechanical break-up (MBU).
- MBU mechanical break-up
- the determining factors for the quality of the spray are, among other things, the geometry and distribution of the channels, the diameter of the outlet orifice and the conical shape of the outlet orifice.
- the current injection techniques inserts do not reliably produce outlet ports having diameters less than 0.2 mm.
- the control of the assembly of the insert in the diffuser or the assembly of the two-piece nozzle is complex and the quality of the spray strongly depends on the angular positioning of the insert on the tenon of the diffuser or the inner part relative to the outer part.
- the longitudinal channels coincide with the convergent channels when they are not made on the same part, it is common to design the longitudinal channels with angular sectors much larger than those of the converging channels. Even if the insert or the outer part is not exactly oriented relative with the tenon or the inner part, the convergent channels are inevitably in the continuity of the longitudinal channels.
- the object of the invention is therefore to improve two-piece nozzles of the state of the art.
- a nozzle for an aerosol dispenser in particular for a pressurized aerosol dispenser, comprising
- an outer part provided with a tubular wall open on one side and closed on the other by a front wall forming a cavity, the front wall being provided at its center with an outlet opening, the outer part having a certain symmetry around an axis of symmetry,
- a projection is placed in the center of the front face of the inner part, this projection being dimensioned to penetrate with its free portion opposite to the end face, part called torpedo, in the outlet opening to decrease the cross-section and form an annular outlet.
- the torpedo serving to significantly reduce the cross section of the outlet orifice.
- the diameter of the torpedo can be adapted to the properties of the product to be dispensed.
- the torpedo it is preferable to size the torpedo so that it crosses the outlet opening over its entire height so that the front face of the torpedo, in the mounted state of the nozzle, is flush with the outer face of the front wall of the cavity of the outer room.
- the cross section of the annular outlet orifice may be less than 0.0315 mm 2 .
- the outlet opening, in its part located near the outer face of the front wall, is frustoconical in shape and at the end of the torpedo located opposite the the front face is of cylindrical shape so that the cross section of the annular space between the outlet opening and the torpedo decreases when approaching the outer face of the front wall.
- the cavity of the outer part and the inner part preferably have the shape of a cylinder of revolution or a cone of revolution about the axis of symmetry. It goes without saying that it would also be possible to provide other shapes, in particular a cylinder or a polygonal base cone. Similarly, it is possible that the front face of the inner part and / or that of the front wall of the outer part are curved, for example hemispherical.
- the channels can be divided into lateral channels made in the cylindrical or frustoconical envelope of the inner part and / or the cavity of the outer part, and in convergent channels made in the front wall of the outer part or in the face frontal of the inner room.
- the lateral channels may be substantially parallel to an axial plane defined by the axis of symmetry defining the cylindrical or frustoconical shapes of the inner part and the outer part, or on the contrary they may diverge from a defined axial plane by the axis of symmetry.
- the side channels may be helically shaped. This last form is particularly simple to make on the inner part.
- the lateral channels are substantially parallel to an axial plane defined by the axis of symmetry, their length is the shortest. On the contrary, if they deviate from this direction, they are longer. The modification of the length of the side channels makes it possible to adapt the flow rate of the flow of material.
- the convergent channels may extend from the cylindrical or frustoconical envelope of the inner part or the cavity of the outer part to the turbulence chamber in which they open preferably tangentially. It may be advantageous that the nozzle is immobilized in the cavity, in particular to ensure exact alignment of the side channels and converging channels. In this case, the nozzle may be provided with fixing means for fixing the inner part in the cavity of the outer part so that it is immobilized in the cavity. Another solution is to dimension the inner part so that it is retained by clamping in the cavity of the outer part so as to be immobilized.
- the inner part and / or the outer part may be provided with first orientation means for orienting the inner part with respect to the outer part in order to align the channels between them.
- first orientation means for orienting the inner part with respect to the outer part in order to align the channels between them.
- Another solution is to orient the inner part before transferring it into the cavity of the outer part.
- the inner part can rotate in the outer room.
- the nozzle may be provided with retaining means for retaining the inner part in the cavity of the outer part so that it is rotatable in the cavity about the axis of symmetry.
- the diffuser duct extends the separation of the two channels to its outlet end and that part of the nozzle channels is intended for one tracks and the rest of the channels to the other lane.
- Another solution is to separate sufficiently the channels from each other, or to give them an angular deployment sufficiently small, so that the same conduit can not be in contact simultaneously with the two channels.
- the nozzle of the invention may be sold alone or be mounted in a housing of an aerosol dispenser, the housing may have a bottom face provided with diverging channels.
- Fig. 1 an exploded view of a first nozzle according to the invention
- Fig. 2 a perspective view of the inner part of the 1 st nozzle
- Fig. 3 a bottom view of the inner part of FIG. 2;
- Fig. 4 a side view of the inner part of FIG. 2;
- Fig. 5 a perspective bottom view of the outer part of the 1 st nozzle
- Fig. 6 a bottom view of the outer part of FIG. 5;
- Fig. 7 a perspective view from below of the 1 st nozzle
- Fig. 8 a perspective view from above of the 1 st nozzle
- Fig. 9 a horizontal section of the 1 st nozzle along the line AA of Fig. 1 1
- Fig. 10 a horizontal sectional view of the 1 st nozzle along plane BB of Fig. 1 1
- Fig. 1 1 a vertical section of the 1 st nozzle according to the CC axial plane of Fig. 10;
- Fig. 12 a horizontal sectional view of the 1 st nozzle along plane BB of Fig. 1 1;
- Fig. 13 an exploded view of a second nozzle according to the invention.
- Fig. 14 a perspective view of the inner part of the 2 nd nozzle
- Fig. 15 a perspective view from below of the outer part of the 2 nd nozzle
- Fig. 16 a vertical section of the outer part of the 2nd nozzle
- Fig. 17 a bottom view of the outer part of the 2nd nozzle
- Fig. 18 a horizontal section in perspective of the outer part according to the plane A-A of Figure 23;
- Fig. 19 a perspective view from below of the 2nd nozzle
- Fig. 20 a perspective view from above of the 2 nd nozzle
- Fig. 21 a horizontal section of the 2 nd nozzle along the line AA of Fig. 23;
- Fig. 22 a horizontal section of the 2 nd nozzle along plane BB of Fig. 23;
- Fig. 23 a vertical section of the 2 nd nozzle along plane CC of Fig. 22;
- Fig. 24 a sectional view of the 2 nd nozzle according to the plane DD of Fig. 23;
- FIG. 1 A perspective view of a variant of the inner part for the first nozzle
- FIG. 1 A perspective view of an interior piece for a variant of the second nozzle
- FIG. 1 A perspective view of an outer piece for the variant of the second nozzle
- Fig. 28 a sectional view of the variant of the second nozzle
- Fig. 29 a section through a diffuser provided with the 1 st nozzle.
- the invention relates to a nozzle (1, 2) for an aerosol dispenser (3) to be placed on a valve of a pressure vessel.
- the nozzle may also be used with an aerosol dispenser cooperating with a container that is not under pressure.
- the nozzle consists of an inner part (1 1, 21) and an outer part (12, 22). Two examples of nozzles, each having a variant, are shown in the figures. The constituent elements of variants are indicated by a sign "'".
- the nozzle and its components have a certain symmetry of rotation around a main axis (A) passing through the nozzle parallel to the general direction of diffusion of the product.
- A main axis
- the adjectives "axial” or “radial” refer to this main axis and define an element parallel to the axis or perpendicular to this axis respectively.
- spatial references such as “upper” and “lower”, “above” or “below” refer to the nozzle and its components as shown for example in FIG. 11 or FIG. 23 for example. This is not an absolute position, but only a reference position for the description, the nozzle integrated into a diffuser can be used in any position adapted to the product to be delivered.
- the outer part (12, 22) has the general shape of a bucket formed of a tubular wall (121, 221) open on one side and closed on the other by a front wall (122, 222).
- the cavity defined by the tubular wall and the front wall has a general shape of revolution cylinder or cone of revolution.
- An outlet opening (123, 223) is made in the center of the front wall to contact the cavity with the outer face of the front wall.
- the inner part (1 1, 21) has the general shape of a cylinder of revolution or a cone of revolution substantially complementary to that of the cavity of the outer part. It has a front face (January 1, 21 1) which, in the mounted state of the nozzle, is facing the front wall (122, 222) of the outer part, generally being partially in contact with it.
- Channels are provided in the inner part and / or the outer part to bring the product to be diffused from the valve to the outlet opening (123, 223) of the nozzle.
- These channels are divided into two parts: side channels (1 12, 224) leading from the inlet of the nozzle to the front wall and converging channels (125, 225) leading from the end of the side channels (1 12, 224) to a turbulence chamber (127, 227) from which the outlet opening (123, 223) starts.
- the lateral channels may be made on the cylindrical or frustoconical wall of the inner part (1 1) as in the first nozzle or on the inner face of the tubular wall (221) of the outer part as in the second nozzle.
- the convergent channels (125, 225) are made in the bottom of the cup, on the inner face of the front wall (122, 222) of the outer piece. It would be however possible to make them on the front face (1 1 1, 21 1) of the inner part (1 1, 21).
- Convergent channels serve to form the spray. These channels start from the peripheral edge of the front wall (122, 222) of the cavity of the outer part or the end face (1 1 1, 21 1) of the inner part, and open tangentially, or at least non-radial, in a circular cavity so that when the two parts are assembled, there is formed a turbulence chamber (127, 227, 227 ') promoting the formation of the spray. This is the process known as the "mechanical break-up".
- a cylindrical stud (113, 213 ') may be in the center of the circular space forming the turbulence chamber (127, 227') to promote turbulence of the flow.
- the exit opening through which the spray formed in the turbulence chamber is as small as possible.
- This opening is usually frustoconical.
- the current injection techniques do not reliably produce outlets having diameters of less than 0.2 mm.
- the invention provides for forming an outlet opening of diameter that can be relatively large and for placing on the end face (1 1 1) of the inner part a projection (1 13, 1 14) whose free end opposed to the end face, end called torpedo (1 14), is intended to penetrate, at least in part, into the outlet opening and whose dimensions are slightly smaller than those of the outlet opening (123).
- a fine, annular outlet opening is thus clearly visible in FIG. 8.
- the torpedo therefore has the function of reducing the cross section of the outlet opening.
- the torpedo (1 14) is placed above the cylindrical stud (1 13) located in the center of the turbulence chamber (127).
- the opening is in the form of a channel leaving the turbulence chamber (127) and opening on the outer face of the front wall (122) of the cavity of the outer part.
- the outlet opening (123) can be divided into a cylindrical lower part (123a) and a frustoconical upper part (123b), and the torpedo can be divided into a frustoconical lower part (1 14a) and an upper part (1 14b). ) cylindrical.
- the torpedo (1 14) enters the outlet opening (123). It is dimensioned such that its front portion (1 14c), that is to say the free end of the upper portion (1 14b) cylindrical located opposite the stud (1 13) of the chamber of turbulence, is flush with the outer face of the front wall (122) of the outer part.
- the conjugation of the frustoconical shape of the upper end of the opening (123) and the cylindrical shape of the end of the torpedo contributes to accelerate the flow of the spray by reducing more and more the cross section of the space annular approaching the outer face of the front wall (122).
- the outlet opening (123) begins downstream of the converging channels and the channels convergent ends upstream of the torpedo.
- the torpedo can therefore enter the narrowest part of the exit opening.
- the outlet opening (223, 223 ') is always downstream of the central turbulence chamber (227, 227') and, by placing itself on the axis of symmetry (A) behind the turbulence chamber in the flow direction of the product, but it does not necessarily start closer to the outer face of the front wall (222) than some parts of the converging channels.
- the outlet opening may be surrounded in its lower part by at least a portion of the converging channels without they nevertheless open into this outlet opening. This is clearly visible for example on the section of FIG. 23.
- the diameter of the opening at the narrowest level may be 0.45 mm and that of the torpedo at the narrowest diameter of 0.40 mm, leaving a gap of 0.025 mm between the two rooms.
- a 0.1 mm diameter torpedo can be placed in a 0.2 mm hole (measured at the narrowest point of the exit aperture).
- the side channels (12, 224) may be vertical, as in the embodiments shown in FIGS. 1 and FIG. 13.
- the channels extend parallel to an axial plane defined by the axis of symmetry (A). They define the shortest path between the nozzle entry and the converging channels. It is also possible to make them according to a geometry deviating from the vertical. For example, they may be helically shaped as in FIG. 25, even zigzag.
- the lateral channels (1 12 ') do not extend parallel to an axial plane defined by the axis of symmetry (A), but diverge from this axial plane. This allows to lengthen the channels while maintaining the same height for the nozzle. In general, the shorter the channel, the greater the flow.
- the side channels are placed on the inner part (1 1).
- the cross section of these side channels decreases slightly between the inlet located at the lower face and the outlet located at the front face (January 1).
- the side walls of the side channels (1 12) are not radial, but slightly inclined in the same direction relative to the radial direction. This is clearly visible in FIG. 3 showing the interior room seen from below.
- the lateral channels (224) of the 2 nd nozzle are in turn placed on the internal face of the tubular wall (221) of the outer part. They also have a cross section that decreases due to a slight inclination of the side walls and the bottom wall of the channels.
- One of the lateral walls of the lateral channels is rounded and is in the extension of the side wall of the convergent channels. This rounded shape of the sidewall helps guide the flow in the corresponding convergent channel.
- the second lateral wall of the lateral channels is straight and substantially radial.
- the convergent channels can be placed in the front wall of the cavity of the outer part or on the front face of the inner part.
- the convergent channels of the first game start from the side channels and open radially into a first annular cavity from which the channels of the second set that open radially into a second circular or annular cavity forming the turbulence chamber (227, 227 ') and where the outlet opening (223).
- the inner part (1 1) is well oriented relative to the outer part (12) and that it maintains this orientation throughout the use of the diffuser carrying the nozzle to ensure proper operation of the nozzle and to limit the cross section of the side channels (1 12) at their junction with converging channels.
- first orientation means such as polarizers or orientation marks.
- the inner part (1 1) can be slightly oversized relative to the cavity of the outer part (12) so that it is forced in and held in the correct position by clamping.
- the inner part (21) can be locked in the cavity of the outer part (22) either by orientation means or by tightening assembly or force fitting, although the question the alignment of side channels and converging channels does not arise.
- the question of orientation does not arise. It is then possible to provide that the inner part (21) is held in the cavity of the outer part (22) while being rotatable about the main axis (A).
- retaining means for example a latching system, which prevents the inner part from leaving the cavity without preventing it from rotating. This solution can promote the vibration of the nozzle and create a resonance phenomenon in the flow, further improving the quality of the spray.
- the nozzle is used in a diffuser for a two-way valve.
- the diffuser duct is designed to maintain channel separation between the outlet of the stem of the valve and the nozzle.
- the first channel of the valve is brought into contact with a portion of the side channels and the second channel with the remainder of the side channels.
- the mixture of products is then in the turbulence chamber. It is therefore necessary that the nozzle is correctly oriented in the diffuser. This can be done either by keeping the initial orientation of the nozzle, for example by keeping it in its mold cavity until it is put into place in the diffuser, or by providing orientation means such as polarizers. .
- Another solution is to distribute the entrances of the side channels and / or their angular extent so that, whatever the position of the nozzle, the same side channel can not be in contact simultaneously with the first channel and with the second way.
- the outer part (12, 22) is preferably made of polyacetal such as POM. It can also be made of polyamide or semicrystalline polyester such as PBT.
- the inner part (1 1, 21) is in turn preferably made of polyacetal such as POM. It can also be made of polyamide or semicrystalline polyester such as PBT.
- the PBT will behave better than the POM or some PA.
- the nozzle of the invention is placed in a housing provided directly at the outlet of the conduit.
- Anchoring means (126, 226) ensure secure attachment of the nozzle to the outlet of the diffuser duct. The nozzle thus retained can not be ejected, even when the pressure prevailing inside the conduit is large and the valve is open.
- the bottom of the housing may have diverging channels opening into the side channels of the nozzle.
- the cavity of the outer part (12, 22) and the inner part (1 1, 21) may have the shape of a cylinder or a cone, not a revolution, but polygonal base.
- the front wall (12, 22) of the outer part and the front face (1 1 1, 21 1) of the inner part are substantially radial in the examples presented here. We could give them another shape, for example conical or curved, for example hemispherical.
- the number of side channels and converging channels is usually two or four. Other configurations may however be envisaged.
- - non-vertical side channels i.e. diverging from the axial plane, for example helical channels
- - inner part free to rotate in the outer part.
- the torpedo can also be used in an opening whose dimensions would have been sufficient to produce a quality spray.
- the presence of the torpedo contributes to further reducing the section of the opening, further increasing the quality of the spray.
- Aerosol dispenser provided with a nozzle according to the invention
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Nozzles (AREA)
- Gas-Insulated Switchgears (AREA)
- Plural Heterocyclic Compounds (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20176158.2A EP3736047B1 (fr) | 2017-11-06 | 2018-10-19 | Buse en deux pièces pour diffuseurs d'aérosol |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1760409A FR3073154B1 (fr) | 2017-11-06 | 2017-11-06 | Buse en deux pieces pour diffuseurs d'aerosol |
PCT/EP2018/078705 WO2019086272A1 (fr) | 2017-11-06 | 2018-10-19 | Buse en deux pièces pour diffuseurs d'aérosol |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20176158.2A Division EP3736047B1 (fr) | 2017-11-06 | 2018-10-19 | Buse en deux pièces pour diffuseurs d'aérosol |
EP20176158.2A Division-Into EP3736047B1 (fr) | 2017-11-06 | 2018-10-19 | Buse en deux pièces pour diffuseurs d'aérosol |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3706916A1 true EP3706916A1 (fr) | 2020-09-16 |
EP3706916B1 EP3706916B1 (fr) | 2022-11-30 |
Family
ID=60955251
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20176158.2A Active EP3736047B1 (fr) | 2017-11-06 | 2018-10-19 | Buse en deux pièces pour diffuseurs d'aérosol |
EP18789645.1A Active EP3706916B1 (fr) | 2017-11-06 | 2018-10-19 | Buse en deux pièces pour diffuseurs d'aérosol |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20176158.2A Active EP3736047B1 (fr) | 2017-11-06 | 2018-10-19 | Buse en deux pièces pour diffuseurs d'aérosol |
Country Status (8)
Country | Link |
---|---|
US (1) | US11850611B2 (fr) |
EP (2) | EP3736047B1 (fr) |
AR (2) | AR113423A1 (fr) |
BR (2) | BR112020008985B1 (fr) |
CA (2) | CA3201790A1 (fr) |
FR (1) | FR3073154B1 (fr) |
MX (2) | MX2020004834A (fr) |
WO (1) | WO2019086272A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US12004502B2 (en) | 2019-12-06 | 2024-06-11 | The Procter & Gamble Company | Pest control spray |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2674493A (en) * | 1945-07-19 | 1954-04-06 | Franz J M Raskin | Atomizer |
SU1026836A2 (ru) * | 1982-03-05 | 1983-07-07 | Всесоюзный научно-исследовательский и проектный институт химической промышленности | Механическа форсунка |
DE29802025U1 (de) * | 1998-02-06 | 1998-04-02 | Hsu, Chih-Lung, Taichung | Hochdruckzerstäuber |
FR2792552B1 (fr) * | 1999-04-20 | 2002-04-19 | Valois Sa | Tete de pulverisation de produit fluide comportant un obturateur ameliore |
US6415994B1 (en) | 2000-08-29 | 2002-07-09 | Clayton F Boggs | Rotational nozzle atomizer |
WO2006095153A1 (fr) * | 2005-03-08 | 2006-09-14 | Leafgreen Limited | Generateur aerosol |
AU2011266100B2 (en) * | 2010-06-15 | 2015-04-09 | Daizo Corporation | Nozzle hole mechanism |
EP2570110B1 (fr) * | 2011-09-15 | 2017-05-03 | Noxell Corporation | Produit de laque aérosol pour styliser et/ou mettre en place les cheveux |
AR101397A1 (es) * | 2014-08-06 | 2016-12-14 | Johnson & Son Inc S C | Inserto para pulverizadores |
CN204544496U (zh) * | 2015-02-03 | 2015-08-12 | 厦门松霖科技有限公司 | 可形成中空水幕的出水装置 |
-
2017
- 2017-11-06 FR FR1760409A patent/FR3073154B1/fr active Active
-
2018
- 2018-10-19 EP EP20176158.2A patent/EP3736047B1/fr active Active
- 2018-10-19 MX MX2020004834A patent/MX2020004834A/es unknown
- 2018-10-19 WO PCT/EP2018/078705 patent/WO2019086272A1/fr active Application Filing
- 2018-10-19 BR BR112020008985-0A patent/BR112020008985B1/pt active IP Right Grant
- 2018-10-19 CA CA3201790A patent/CA3201790A1/fr active Pending
- 2018-10-19 US US16/761,586 patent/US11850611B2/en active Active
- 2018-10-19 CA CA3081738A patent/CA3081738C/fr active Active
- 2018-10-19 EP EP18789645.1A patent/EP3706916B1/fr active Active
- 2018-10-19 BR BR122020009059-6A patent/BR122020009059A2/pt unknown
- 2018-11-05 AR ARP180103218A patent/AR113423A1/es active IP Right Grant
-
2020
- 2020-04-30 AR ARP200101222A patent/AR118820A2/es active IP Right Grant
- 2020-07-13 MX MX2020004847A patent/MX2020004847A/es unknown
Also Published As
Publication number | Publication date |
---|---|
CA3201790A1 (fr) | 2019-05-09 |
MX2020004834A (es) | 2020-08-13 |
US20200269261A1 (en) | 2020-08-27 |
AR113423A1 (es) | 2020-04-29 |
BR112020008985B1 (pt) | 2023-01-10 |
BR122020009059A2 (pt) | 2020-12-15 |
MX2020004847A (es) | 2020-08-13 |
EP3736047A1 (fr) | 2020-11-11 |
FR3073154A1 (fr) | 2019-05-10 |
EP3706916B1 (fr) | 2022-11-30 |
BR112020008985A2 (pt) | 2020-12-01 |
CA3081738A1 (fr) | 2019-05-09 |
FR3073154B1 (fr) | 2020-09-18 |
US11850611B2 (en) | 2023-12-26 |
WO2019086272A1 (fr) | 2019-05-09 |
CA3081738C (fr) | 2023-10-03 |
EP3736047B1 (fr) | 2023-06-07 |
AR118820A2 (es) | 2021-11-03 |
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