Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
  • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
  • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
  • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
• • 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
  • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
  • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
• • 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
• • 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
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
  • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
  • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
  • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
  • B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
  • B05B1/3431—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
  • B05B1/3436—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the interface being a plane perpendicular to the outlet axis
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
  • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
  • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
  • B05B11/1001—Piston pumps
  • B05B11/1009—Piston pumps actuated by a lever
  • B05B11/1011—Piston pumps actuated by a lever without substantial movement of the nozzle in the direction of the pressure stroke
• • 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
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
  • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
  • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
  • B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D83/00—Containers or packages with special means for dispensing contents
  • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
  • B65D83/16—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant characterised by the actuating means
  • B65D83/20—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant characterised by the actuating means operated by manual action, e.g. button-type actuator or actuator caps
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
  • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
  • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
  • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
  • B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
  • B05B1/3431—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
  • B05B1/3442—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

Definitions

• Fluid product spraying head and dispenser comprising such a spraying head
• the present invention relates to a fluid spray head comprising a spray orifice defining a distribution axis, a swirl chamber upstream of the spray orifice, the chamber being delimited by internal walls, and swirl channels defining respectively channel outlets which open transversely to the distribution axis in the swirl chamber at the inner walls so as to generate a swirling flow within the swirl chamber, each channel defining a projection axis which extends into the swirl chamber from the channel outlet.
• a spray head may for example be in the form of a pusher operable with one or more finger (s) of a hand.
• the preferred fields of application of the present invention are those of perfumery, cosmetics or pharmacy, without excluding other areas.
• document FR-2 399 282 which describes a conventional spray head comprising a dispensing orifice, a swirl chamber and swirling channels which open tangentially and transversely into the swirl chamber.
• the swirl channels extend in a plane that is perpendicular to the distribution axis defined by the spray orifice.
• the flows of fluid from the swirling channels enter the swirl chamber along the bottom wall of the chamber.
• they also run along the cylindrical side wall of the chamber as they open tangentially into the swirl chamber.
• the flows of fluid product run along both the bottom wall and the side wall of the swirl chamber, thus generating a loss of considerable load. Parasitic and uncontrolled flow phenomena are also generated.
• FR-2 399 282 describes yet another embodiment in which the swirl channels are formed in a frustoconical surface and open tangentially into the bottom wall of the swirl chamber which defines a frustoconical side wall whose open top forms the spray orifice. More specifically, a nozzle, forming the spray orifice and the frustoconical wall, is engaged around a pin forming the bottom wall and a frustoconical surface in which the swirl channels are formed.
• the fluid product streams from the swirling channels enter the swirl chamber along the frustoconical wall of the swirl chamber towards the spray orifice.
• the fact that the flows along the frustoconical internal wall of the chamber generates a considerable pressure drop and uncontrolled parasitic flow phenomena.
• the sputtering chamber is responsible for a significant loss of pressure and the generation of fluid phenomena that affect the good quality of the spray through the spray orifice. .
• the present invention aims to overcome the aforementioned drawbacks of the prior art found in most dispensing heads provided with a chamber and swirling channels.
• the present invention proposes the Y-axis projection of the swirling channels moving away from both the bottom wall and the peripheral side wall which are both adjacent to the channel outlets so as to pass through the chamber. swirling without running along either the bottom wall or the peripheral side wall.
• the fluid product streams from the swirl channel outlets are no longer subject to parasitic laminar flow phenomena along the inner walls of the swirl chamber.
• the vortex flow of the fluid product can thus be produce without being significantly disturbed by the internal walls of the swirl chamber.
• the vortex flow is mainly generated away from the inner walls of the vortex chamber.
• the pressure drop at the swirl chamber is thus considerably reduced, which makes it possible to implement swirl channels having a reduced cross section. Indeed, the pressure loss already created by the swirl channels of reduced section will be only slightly increased at the level of the swirl chamber of the invention.
• the channel outlets open into the swirl chamber at the point where the bottom wall connects to the peripheral side wall.
• the flows of fluid product from the outlets of the swirling channels penetrate into the swirl chamber substantially symmetrically with respect to the side and bottom walls, which considerably reduces parasitic turbulence.
• the bottom wall is substantially flat, channel outlets opening into the swirl chamber at the bottom wall.
• the chamber comprises a front wall in which the spray orifice is formed, the projection axes being directed towards this front wall.
• the peripheral side wall is substantially cylindrical.
• the bottom and front walls can be parallel and flat.
• the bottom wall may be concave or convex, as is the front wall.
• the peripheral side wall may be slightly frustoconical.
• the axes of projection of the swirl channels extending transversely with respect to the bottom wall and the side wall, preferably with an angle of about 45 ° with respect to the wall bottom and with respect to the side wall. This implies that the projection axes from the canals extend into the chamber away from both the bottom wall and the side wall, and advantageously perfectly symmetrical.
• the swirling channels are formed in a frustoconical wall having an axis of revolution coincident with the distribution axis.
• the swirl channels can lead into the swirl chamber with an oblique orientation, both with respect to the bottom wall which is advantageously perpendicular to the distribution axis, and with respect to the side wall which is advantageously cylindrical.
• the outlets of the swirl channels are advantageously formed in the bottom wall directly adjacent to the cylindrical side wall. Thanks to their oblique disposition coming from the frustoconical wall, the flows of fluid product penetrate into the swirl chamber away from both the bottom wall and the side wall, in the direction of the front wall where is formed l spray orifice.
• the spray head comprises a head body and a nozzle, the head body forming a pin defining the bottom wall and the frustoconical wall, the nozzle being engaged around the pin defining between them the swirl chamber and the swirl channels, the nozzle defining the front wall and the side wall, and a frustoconical zone which comes into sealing contact with the frustoconical wall of the spindle to form the swirl channels, the nozzle advantageously having a symmetry of revolution around the axis of distribution.
• the channel outlets open non-tangentially into the swirl chamber. In this way, it is furthermore avoided that fluid streams from the swirl channel outlets flow along the side wall of the swirl chamber.
• the swirl chamber may have a thickness E in the direction of the distribution axis and a diameter D in the direction perpendicular to the distribution axis, the ratio E / D being less than about 0.8 mm, E being advantageously less than about 0.5 mm.
• the swirl channels are rectilinear.
• the pressure drops are minimized, particularly when the channels have a reduced section.
• the invention also defines a fluid dispenser comprising a reservoir, a pump mounted on the reservoir and a spray head as defined above associated with the pump.
• the dispensing head can be attached to an outlet of the pump or integrated into the pump.
• the spray head is in the form of a pusher attached to the free end of the actuating rod of the pump.
• the spirit of the invention lies in the fact of moving the fluid product streams coming from the swirling channels from the internal walls of the swirl chamber in order to reduce the pressure losses and to minimize parasitic laminar flow phenomena. Fluid flows from the swirling channels obviously enter the swirl chamber at one of its internal walls, but the flows are oriented such that they immediately move away from these internal walls.
• FIG. 1 is an exploded perspective view of a dispensing head according to an embodiment of the present invention
• FIG. 2 is a greatly enlarged plan view of a detail of the head body of FIG. 1, and
• Fig. 3 is a horizontal cross-sectional view through the spray head of Fig. 1 in the mounted state.
• the spray head of the present invention can be implemented at the outlet of any fluid dispenser device, such as a pump, a valve, a collapsible reservoir, etc.
• the spray head of the invention will find a preferred application as a manually operable pusher with one or more finger (s).
• This pusher may be integrated with a pump or a valve, or preferably attached to the free end of an actuating rod forming an internal outlet duct.
• the actuating rod is provided with a piston that slides sealingly inside a barrel formed in a pump body which is fixedly mounted on the opening of the pump. 'a reservoir.
• the pump conventionally comprises a pump chamber provided with an inlet valve, and an outlet valve which can be carried by the actuating rod.
• the volume of the pump chamber decreases, thereby putting the fluid contained therein under pressure.
• the outlet valve opens and the fluid under pressure is forced through the actuating rod to reach the pusher incorporating a spray head according to the invention.
• the spray head according to a non-limiting embodiment of the invention comprises a head body 1 which can be made by injection molding of suitable plastic material.
• the head body 1 can be made in one piece. It conventionally comprises a connection sleeve intended to be attached to the free end of the actuating rod of a pump or a valve.
• This connecting sleeve is connected to a housing 10 by a series of ducts and internal channels.
• the housing 10 is preferably cylindrical and opens laterally on the periphery of the head body.
• the housing 10 contains a pin 1 1 which protrudes outwardly of the housing.
• an annular space is formed inside the housing 10 around the pin 1 1.
• a nozzle 2 is attached and fixedly inserted inside the housing 10 around the pin 1 1, as can be seen in FIG.
• a series of internal conduits is defined between the pin 1 1 and the nozzle 2 to route the fluid product from the connection sleeve to a spray orifice 21 formed by the nozzle 2.
• the spray head can still be provided with a trim band which aesthetically envelops the head body 1 leaving the nozzle 2 apparent.
• housing 10 has a substantially cylindrical circular configuration.
• pin 1 1 it is disposed substantially centrally inside the housing 10 and has an oblong cross section with two rounded sectors 1 January 1 and two flats 1 12.
• the front face of the pin 1 1 which is facing outward housing 10 has a complex structure that will now be described. Referring again to FIG. 2, it can be seen that this front face is predominantly defined by a frustoconical wall 14 whose axis of revolution coincides with the axis of the spindle and the distribution axis X, as one will see it below.
• the frustoconical wall 14 is truncated on its outer periphery, but also in its center so as to define a bottom wall 12, which is here substantially planar and perpendicular to the axis of revolution of the frustoconical wall 14.
• the frustoconical wall 14 is formed with two grooves or grooves 13 'which extend from the flats 1 12 in the frustoconical wall 14 to the bottom wall 12 in which they open out as channel outlets 131. It may be noted that the grooves or grooves 13 'reach the level of the bottom wall 12 non-tangentially.
• a common conduit 17 connects the housing 10 to a well forming the connecting sleeve.
• the nozzle 2 preferably has a symmetry of revolution about the distribution axis X passing through the spray orifice 21. Thus, it is not necessary to orient the nozzle 2 during its insertion into the housing 10 of the head body 1.
• the spray orifice 21 is formed at the same level a distribution wall 22 of reduced thickness.
• the spray orifice 21 is in the form of a perfectly or substantially cylindrical bore which passes through the thickness of the distribution wall 22.
• the nozzle forms a diffusion cone 23 which promotes the formation of 'a good quality spray.
• the 22 forms a front wall 24 which may be perfectly or substantially flat, or slightly concave, convex or frustoconical.
• the front wall 24 is interrupted at its center by the spray orifice 21.
• the nozzle 2 also forms a peripheral side wall 25 which may have a cylindrical configuration around the distribution axis X. In a variant, it is also possible to produce the side wall 25 with a frustoconical or even complex configuration. Beyond this side wall 25, the nozzle 2 forms a frustoconical zone or section 26 having a solid angle identical to that of the frustoconical wall 14 of the spindle 11.
• this zone or frustoconical section 26 can come into intimate sealed contact with the frustoconical wall 14, so as to isolate between them swirl channels 13 at the level of the grooves or grooves 13 '.
• These swirling channels 13 open at the channel outlets 131 in a substantially cylindrical volume defined between the bottom wall 12 of the spindle 11, the front wall 24 and the side wall 25 of the nozzle 2.
• This internal volume constitutes a chamber vortex 20 whose input is defined by the channel outputs 131 and the output is defined by the spray orifice 21.
• the channel outlets 1 13 are not directly tangent to the side wall 25, but slightly offset inside the swirl chamber 20.
• This chamber may have a thickness E in the direction of the distribution axis X of the order of 0.5 mm and a diameter D in the direction perpendicular to the distribution axis X of the order of 0.7 mm.
• E / D ratio is preferably less than about 0.8.
• the swirl channels 13, which are advantageously rectilinear, define projection axes Y which open into the swirl chamber 20 at the level of the two channel outlets 131 and extend inside this chamber 20 obliquely without longitudinal or the bottom wall 12 nor the side wall 25.
• the two projection axes Y s extend into the chamber 20 from the bottom wall substantially at the level where it comes into contact with the cylindrical wall 25.
• the two projection axes Y extend in the swirl chamber 20 with an angle of 45 ° relative to the bottom wall 12 and with respect to the side wall 25.
• the bottom wall 12 and the side wall 25 can be made with various configurations, provided that the flows of fluid that penetrate into the swirl chamber 20 along the axes Y does not follow the bottom walls 12 and side walls 25.
• the object of the present invention is to avoid any laminar flow along the internal walls of the swirl chamber 20.
• By forming the swirl channels 13 in a frustoconical wall these are oriented obliquely with respect to the distribution axis X, so that the flows of fluid which penetrate the swirl chamber 20 do not run along any of these internal walls, since the bottom wall 12 is substantially or generally perpendicular to the X axis and the side wall 25 is generally or substantially cylindrical.
• the spindle 1 1 and the nozzle 2 Upstream of the swirl channels 13, the spindle 1 1 and the nozzle 2 form two respective supply channels 15 and a common annular channel 16 which communicates even further upstream with the common conduit 17 visible in FIG. 15 power supply are here formed between the flats 1 12 of the spindle 1 1 and the inner wall 27 of the nozzle 2.
• the nozzle 2 For its fixed and sealed retention inside the housing 10, the nozzle 2 comprises sealed fastening means 28 in the form of profiles protrusions allowing a tight grip inside the housing 10.
• each channel 13 is supplied perfectly independently by respective clean ducts.
• a spray head is obtained with reduced pressure drop and without parasitic laminar effect.

Landscapes

• Chemical & Material Sciences (AREA)
• Dispersion Chemistry (AREA)
• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Nozzles (AREA)
• Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=47351843

Family Applications (1)

Country Status (9)

Families Citing this family (6)

Family Cites Families (19)

• 2012
  • 2012-09-04 FR FR1258233A patent/FR2994866B1/fr not_active Expired - Fee Related
• 2013
  • 2013-09-02 BR BR112015004686-0A patent/BR112015004686B1/pt active IP Right Grant
  • 2013-09-02 CN CN201380053528.9A patent/CN104736250B/zh active Active
  • 2013-09-02 EP EP13774715.0A patent/EP2892655B1/de active Active
  • 2013-09-02 WO PCT/FR2013/052008 patent/WO2014037655A1/fr active Application Filing
  • 2013-09-02 US US14/425,064 patent/US9370786B2/en active Active
  • 2013-09-02 JP JP2015529105A patent/JP6276271B2/ja not_active Expired - Fee Related
  • 2013-09-02 ES ES13774715.0T patent/ES2611763T3/es active Active
• 2015
  • 2015-02-13 IN IN1203DEN2015 patent/IN2015DN01203A/en unknown

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events