EP0663240B1 - Dispositif de distribution à pertes de charge réduites comportant une buse de distribution - Google Patents
Dispositif de distribution à pertes de charge réduites comportant une buse de distribution Download PDFInfo
- Publication number
- EP0663240B1 EP0663240B1 EP94402884A EP94402884A EP0663240B1 EP 0663240 B1 EP0663240 B1 EP 0663240B1 EP 94402884 A EP94402884 A EP 94402884A EP 94402884 A EP94402884 A EP 94402884A EP 0663240 B1 EP0663240 B1 EP 0663240B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dispensing
- revolution
- axis
- nozzle
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000012530 fluid Substances 0.000 claims description 24
- 240000008042 Zea mays Species 0.000 description 9
- 230000000295 complement effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229940082150 encore Drugs 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Images
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
-
- 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
- B05B11/0005—Components or details
Definitions
- the present invention relates to a distribution device with reduced pressure drops, comprising a dispensing nozzle and intended to equip a fluid dispenser having a container containing the fluid to be dispensed.
- a dispensing device generally comprises a body provided with a conduit supply, for supplying the nozzle for distributing the fluid contained in the container, and a distribution chamber in which extends a core which defines, with the distribution chamber, at least one distribution passage, the distribution nozzle having a dispensing orifice one end of which allows the outlet to the outside of the fluid to be dispensed and the other end of which is connected to said dispensing passage by at at least one distribution channel disposed transversely to the core.
- the distribution nozzles are traversed by the fluid to distribute following a user action: this action is, for example, a pressure exerted on the walls of the container then provided flexible, or the actuation of a support, or push button, equipped with the nozzle, which controls the opening of a valve with which the dispenser is fitted, the container then being filled with a pressurized gas to propel the fluid to be distributed through the nozzle, or which implements means for pumping the fluid.
- the core which extends into the distribution and defines with it the distribution passage, either with the body of the device, either with the dispensing nozzle.
- the core When the core is integral with the body, it is generally molded at the same time as the body, which is advantageous from the point of view of the number of parts; therefore, the supply duct is not arranged along the axis of the core, which would be suitable for a good even distribution around the nucleus; however, it is possible to limit the pressure losses downstream of the supply duct by tangentially feeding the (or) distribution passage (s): such a solution is, for example, described in the request French patent FR-A-2,688,712.
- the supply channel can extend, at least in its part which opens out in the distribution chamber, along the axis of the core, such devices are known, such as the push button shown in Figure 1, and described below such a device has high pressure drops and is not satisfactory.
- the object of the invention is to propose a dispensing device in which, at the same time, the distribution of the fluid around the core is homogeneous, the supply duct having at at least one part, which opens into the distribution passage, arranged along the axis of the core, and pressure losses are reduced.
- a distribution device intended to equip a distributor with fluid, comprising a body provided with a supply duct, for supplying to the nozzle of distribution of the fluid contained in a container of the dispenser, and of a distribution in which a core extends which defines, with the distribution chamber, at least one dispensing passage, the dispensing nozzle having a dispensing orifice one end of which allows the fluid to be dispensed to the outside and the other of which end is connected to said distribution passage by at least one distribution channel arranged transversely to the core, the core being carried by the dispensing nozzle which is itself carried by the body of the device, the distribution passage being defined between two surfaces, an internal surface corresponding to the core and a surface external, at least the internal surface being of revolution about an axis of revolution according to which extends at least the part of the supply duct which opens into the passage distribution, the external surface also being of revolution around the same axis, the external and internal surfaces being substantially complementary, from a point on the axis of revolution
- the internal surface as well as the external surface, have a profile which comprises all continuous forms, with or without inflection point, between a point on the axis of revolution and another point distant from the first and located at a distance from the axis; for example, said surface of revolution is ovoid in shape; alternatively, its shape is conical; according to another variant, its shape is hemispherical.
- the dispensing nozzle is of revolution around a coincident axis with the axis of revolution, and the dispensing orifice extends along this axis.
- said distribution channel extends in a plane perpendicular to the axis of the nozzle.
- said distribution channel is defined between two faces, one of which is the rear face of the dispensing nozzle and the other of which is the front face of the core.
- the distribution passage is defined by all the space between the two surfaces.
- distribution passages are provided between the two surfaces; the distribution passages are hollowed out on the outer surface of the core; there are as many distribution passages as distribution channels; distribution passages are connected to the distribution channels by grooves extending parallel to the axis of revolution.
- the distribution passage (s) extends (s) around the axis of helical-like revolution.
- the rear faces of the nozzle and the front face of the core are substantially flat; the rear faces of the nozzle and the front face of the core are connected to the surfaces according to arcs of a circle in axial section.
- the rear faces of the nozzle and the front face of the core are also of revolution.
- the body of the device is the body of a push button fitted with a fluid distributor.
- a push button 1 produced by assembling three parts is shown in the figure 1.
- the push button 1 consists of a body 2 comprising a cavity 3 intended to receive the end of a hollow operating rod for actuation of a valve or a distribution pump mounted at the top a container forming a reservoir for the fluid to be dispensed.
- Body 2 has also a chamber 4 of cylindrical shape connected to the cavity 3 by a conduit inlet 5 for the fluid.
- the nozzle 6 Before its assembly in chamber 4, the nozzle 6 is previously equipped with a core 10 which is forced into it; the core 10 is cylindrical in shape and carries, as this is visible in Figure 2, longitudinal projections 12 regularly distributed circumferentially and defining between them, and in cooperation with the surface inner peripheral of the skirt 14, passages 11; channels 9 dug at the inner surface of the wall 13 of the nozzle 6, and regularly distributed circumferentially, extend from the recess 8 to the inner periphery of the skirt 14; when the nozzle 6 is mounted in the chamber 4, the front face 15 of the core 10 being pressed against the rear face 16 of the wall 13 of the nozzle 6, the rear face 17 the core 10 is spaced from the transverse bottom 18 of the chamber 4; passages 11 open on one side into the channels 9 and on the other side into the chamber 4 in which also opens the supply duct 5 which is thus connected to the orifice 7 of distribution, via passages 11 and channels 9; the dispensing orifice 7 and the conduit 5 are arranged along the axis common to the nozzle
- a push button according to the present invention is shown in Figures 3 to 5; such a push button 21 consists of a body 22 comprising a cavity 31 for receive the end of the operating rod whose introduction is facilitated by a frustoconical entry 32; a chamber limited by a surface of revolution 24 of axis 33 is connected to the cavity 31 by a supply duct 23; according to the example shown, the axis 33 is horizontal and the axis of the cavity 31, which corresponds to the axis of the operating rod of the dispenser for which the push button 21 is intended, is vertical: therefore, the supply duct 23 is in two parts, a horizontal part 25 and a part 30 vertical; it will be understood that the invention applies regardless of the relative provision of said axes which can be aligned or make any angle between them, from the instant that the supply conduit 23 has at least one part 25 extending along the axis 33 of the surface of revolution 24; according to the invention, the surface 24 is shaped ovoid and the part 25 of the supply conduit 23 opens into the chamber, defined
- the body 22 of the push button 21 comprises a cylindrical housing 35, with an axis 33, open to the outside and having an annular transverse bottom 38 to which the oval shaped surface of revolution 24; a distribution nozzle 26 in the form of cup is force-fitted and sealed in the housing 35, up to abutment of the annular rear face 37 of its skirt 45 against the annular bottom 38 housing 35; the front wall 39 of the nozzle 26 is crossed by an orifice distribution 27 arranged along the axis 33, and opening on the interior side into a recess 28 of circular section, larger than that of the orifice 27, provided on the face inside of the front wall 39.
- the spray nozzle 26 Before being mounted in the housing 35 of the body 22, the spray nozzle 26 is previously equipped with a core 40 which is force fitted into the skirt 45 in cooperating closely with the cylindrical inner surface 36 thereof; furrows 29 are hollowed out on the inner surface of the wall 39 of the nozzle 26, from the hollow 28 and extend, at right angles, along a portion 41 dug on the surface inner 36 of the skirt 45, so that channels 29 are created transverse to axial distribution portions 41 when the core 40 is mounted in the skirt 45 up to abutting its front face 46 with the inner surface of the wall 39 of the nozzle 26.
- the outer surface 34 of the core 40 is a surface of revolution of ovoid shape, complementary to the inner surface 24, and such that when the nozzle 26 equipped with the core 40 is mounted in its housing 35, a clearance remains between the surfaces 24 and 34, such a clearance constituting a distribution passage 44 of revolution, the portions 41 of the channels 29 opening into this distribution passage 44.
- transverse channels 29 are arranged radially, relative to the recess circular 28, as shown in Figure 4; alternatively, as shown in Figure 5, they are arranged tangentially so as to induce an effect on the fluid current swirling.
- the fluid during its distribution, is distributed homogeneously without pressure loss between surfaces 24 and 34, and all the channels 29 are identically powered.
- grooves 43 are provided on the outer surface of the core 40 and arranged in line with the portions 41 of the channels 29.
- the channels 29 are hollowed out in the core 40, instead of being hollowed out in the nozzle 26, such arrangement facilitating the communication of the grooves 43 and the channels 29, by construction.
- the surfaces of revolution 24 and 34 cooperate in abutment and several distribution passages 51 are dug on the surface outside 34 of core 40; distribution passages 51 are regularly distributed around the axis 33 and there can be up to, for example, six distribution passages 51; according to this variant, as shown, the passages 51 extend along planes passing through the axis 33 from each portion 41 of the channels 29 to a recess 52 formed in the central area of the surface 24 and into which the opening opens 42 of part 25 of the supply conduit 23.
- FIG. 8 is of the kind of that described in connection with FIG. 7, with several distribution passages, but these, instead of extending according to plans passing through the axis 33, are hollowed out in a helix; only one such passage, passage 48, is shown on the figure 8.
- the core 60 has a rounded edge 61 of connection between the outer surface 34 of oval shape and its front face 64 transverse; the rear face of the nozzle 66 also has a concave rounded edge complementary and the channels 29 have a portion 62 rounded accordingly.
- the channels 29 are advantageously hollowed out in the core 40 (FIGS. 7 and 8) or in the core 60 (FIG. 9) to facilitate their communication, by construction, with passages 51 ( Figures 7 and 9) or 48 ( Figure 8).
- FIG. 10 shows another variant of push button according to the invention in which the nozzle 76 has the shape of a cup whose inner face 74 is also shaped ovoid; advantageously, when the nozzle 76 is in place, the surfaces 24 and 74 envelop a complete ovoid formed by the core 70; distribution channels 72 and the recess 73 have a section, in a plane passing through the axis, of oval shape thus that the distribution passages 71.
- Figures 9 and 10 show variants in which the passages of distribution, respectively 51 and 71, are of the type shown in FIG. 7; of course, the cores 60 and 70, respectively of FIGS. 9 and 10, can be used to make distribution devices in which the supply of the orifice distribution can be carried out as described with reference to FIGS. 3, 6 or 8.
- the surfaces of revolution 24 and 34 are of shape general hemispherical; according to the variant of FIG. 12, the surfaces 24 and 34 are conical.
- surfaces 24 and 34 all forms of complementary revolution, provided that said surfaces of revolution have, in section by a plane passing through the axis, a symmetrical section of continuous shape from the part 25 from the supply duct 23 to the axial portions 41 of the distribution channels 29 transverse; such sections are shown schematically in Figures 13 to 15: according to FIG. 13, the curve representative of the section is at an inflection point; according to Figure 14, it has a warhead shape and according to Figure 15 a hat shape.
- the different shapes of surfaces 24 and 34 of revolution and the different distribution port supply types, as described here, can be combined to make a dispensing device according to the present invention.
- the distribution passages 51 are hollowed out on the surface outside of the core 40; alternatively, the distribution passages 51 can be hollowed out in the push button 21; FIG. 16 represents such a variant of a figure 7: in this case, it is advantageous to clear the distribution passages 51 in an annular ring 81 defined between the outer surface of the core 40 and the cylindrical inner surface 36 of the skirt 45 of the spray nozzle 26.
Landscapes
- Nozzles (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9400433 | 1994-01-17 | ||
FR9400433A FR2715083B1 (fr) | 1994-01-17 | 1994-01-17 | Dispositif de distribution à pertes de charge réduites comportant une buse de distribution. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0663240A1 EP0663240A1 (fr) | 1995-07-19 |
EP0663240B1 true EP0663240B1 (fr) | 1998-04-08 |
Family
ID=9459100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94402884A Expired - Lifetime EP0663240B1 (fr) | 1994-01-17 | 1994-12-14 | Dispositif de distribution à pertes de charge réduites comportant une buse de distribution |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0663240B1 (es) |
DE (1) | DE69409486T2 (es) |
ES (1) | ES2115903T3 (es) |
FR (1) | FR2715083B1 (es) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20209594U1 (de) | 2002-06-20 | 2002-08-29 | Deuerlein GmbH, 91126 Schwabach | Zerstäubungsdüse |
FR2961189B1 (fr) | 2010-06-14 | 2013-02-22 | Valois Sas | Tete de distribution de produit fluide. |
WO2016025858A1 (en) * | 2014-08-15 | 2016-02-18 | Bowles Fluidics Corporation | Multi-inlet, multi-spray fluidic cup nozzle with shared interaction region and spray generation method |
US11154876B2 (en) | 2011-04-19 | 2021-10-26 | Dlhbowles, Inc. | Multi-inlet, multi-spray fluidic cup nozzle with shared interaction region and spray generation method |
IT202000023515A1 (it) * | 2020-10-06 | 2022-04-06 | Coster Tecnologie Speciali Spa | Dispositivo di erogazione di una sostanza fluida |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1453161A (en) * | 1919-01-06 | 1923-04-24 | Thomas W Murphy | Spray nozzle |
US1794013A (en) * | 1929-10-16 | 1931-02-24 | Groen Gerard Te | Sprinkler |
GB8908583D0 (en) * | 1989-04-15 | 1989-06-01 | Nutec Chemicals Ltd | Trigger operated spray nozzle |
DE69117193T2 (de) * | 1990-12-04 | 1996-06-27 | Dmw (Technology) Ltd., Suffolk | Düsenvorrichtung zum verhindern des rückflusses |
DE4102632A1 (de) * | 1991-01-30 | 1992-08-06 | Pfeiffer Erich Gmbh & Co Kg | Austragduese fuer medien |
-
1994
- 1994-01-17 FR FR9400433A patent/FR2715083B1/fr not_active Expired - Fee Related
- 1994-12-14 ES ES94402884T patent/ES2115903T3/es not_active Expired - Lifetime
- 1994-12-14 DE DE69409486T patent/DE69409486T2/de not_active Expired - Fee Related
- 1994-12-14 EP EP94402884A patent/EP0663240B1/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2715083A1 (fr) | 1995-07-21 |
EP0663240A1 (fr) | 1995-07-19 |
DE69409486D1 (de) | 1998-05-14 |
ES2115903T3 (es) | 1998-07-01 |
FR2715083B1 (fr) | 1996-03-08 |
DE69409486T2 (de) | 1998-08-06 |
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