EP1042072B1 - Buse de pulverisation a moyen statique d'inhibition d'ecoulement - Google Patents
Buse de pulverisation a moyen statique d'inhibition d'ecoulement Download PDFInfo
- Publication number
- EP1042072B1 EP1042072B1 EP98959100A EP98959100A EP1042072B1 EP 1042072 B1 EP1042072 B1 EP 1042072B1 EP 98959100 A EP98959100 A EP 98959100A EP 98959100 A EP98959100 A EP 98959100A EP 1042072 B1 EP1042072 B1 EP 1042072B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coaxial
- spray nozzle
- posterior
- swirl chamber
- outlet passage
- 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
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
- 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
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
-
- 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
Definitions
- the present invention relates to spray nozzles of liquid, capable of being used in the most more diverse such as for example spray pumps, vaporizers, nozzles for combustion burners, internal combustion engine injectors.
- the invention applies more particularly to the nozzles of spray into which the liquid to be sprayed is fed in a central channel swirling through channels side of fluid intake tangentially injecting the liquid which then leaves in an axial direction of exit by an exit coaxial passage out of the central chamber of swirling.
- FIG. 1 An example of a known spray nozzle is described in the document FR 2 324 986.
- the swirl is conical, and liquid is injected tangentially along the conical peripheral wall of chamber in an oblique direction oriented towards the front.
- the outlet has a rounded lip.
- a recess blind posterior coaxial is provided in the posterior wall of the swirl chamber, with a diameter smaller than that of the outlet, in order to stabilize the cone of spraying at the outlet of the nozzle.
- a problem encountered when using these nozzles known is that, at the end of a spraying step, when interrupts the nozzle supply, a residual flow of fluid occurs at the outlet of the nozzle, in the form of one or several large drops, not sprayed.
- a known solution is to provide a valve to the inlet of the spray nozzle.
- This solution is however expensive, source of shutters, and it disrupts the functioning by introducing a threshold effect at startup.
- Such a valve furthermore requires the provision of upstream fluid pressures which are sufficient for its correct functioning, i.e. clearly higher than the pressure required for the operation of the nozzle itself.
- the problem proposed by the present invention is to design a static and inexpensive means of inhibition flow out of the spray nozzle as soon as the his diet.
- the invention results from the surprising observation according to which, during operation of a spray nozzle central swirl chamber, if one realizes in the swirl chamber a vortex of liquid in a plane generally perpendicular to the axis of the outlet and if a posterior coaxial recess of sufficient diameter is provided large, the residual flow from the nozzle is inhibited as soon as interruption of the liquid nozzle supply.
- the invention provides a spray nozzle having the features of claim 1.
- the posterior coaxial recess is of revolution around of said longitudinal axis.
- the posterior coaxial recess can have a length between once and five times the length of the coaxial output passage.
- Too short lengths do not produce inhibition of residual flow. Too long lengths do not apparently no additional effect.
- a spray nozzle in the embodiment illustrated in FIG. 1, comprises a chamber swirl center 1 limited by a peripheral wall 2 of revolution of longitudinal axis I-I, by an anterior wall 3 having a coaxial outlet passage 4, and through a rear wall 5.
- the fluid is brought into the swirl chamber 1, at from an entrance 6, by at least one lateral intake channel of fluid 7 formed in the peripheral wall 2, open in the central swirl chamber 1, and shaped to inject tangentially the fluid in the swirl chamber 1 in a direction substantially perpendicular to the axis longitudinal I-I. So it occurs in the room of vortex 1 a vortex of fluid in a plane substantially perpendicular to the longitudinal axis I-I of the chamber of whirling.
- the rear wall 5 of the swirl chamber 1 includes a dimensioned and shaped posterior coaxial recess 8 so as to inhibit any residual flow of fluid from the coaxial passage of output 4 as soon as the power supply is interrupted fluid at the inlet 6 of the spray nozzle.
- the rear coaxial recess 8 is of revolution around the longitudinal axis I-I. Its diameter De is greater than diameter Ds of the coaxial outlet passage 4, and less than two times the value of said diameter Ds of coaxial outlet passage 4.
- the fluid enters through tangential side channels such as the channel 7, enters into a vortex in the vortex chamber 1 around the longitudinal axis I-I in a plane substantially perpendicular to said axis, then exits axially through the passage coaxial output 4.
- Le posterior coaxial recess 8 which is just sufficient for achieve the desired residual flow inhibition effect, without limit the length, but without excess.
- results satisfactory have been achieved with spray nozzles in which Le is from 600 microns to 900 microns, Ls is around 250 microns, Ds is 160 microns to 240 microns. These values do not are not limiting, because good results can be obtained beyond the limits indicated.
- the coaxial outlet passage 4 is a cone section whose half-angle at the apex A is between 0 ° and approximately 3 ° and converges towards the exit, as illustrated on the figure 4.
- the invention applies to a spray nozzle which can have various structures for swirling the fluid, i.e. having at least one lateral fluid intake channel 7 tangential.
- a spray nozzle which can have various structures for swirling the fluid, i.e. having at least one lateral fluid intake channel 7 tangential.
- we can provide a plurality of lateral intake channels 7, 7a and 7b regularly distributed around the periphery of the swirl 1.
- the invention also applies to nozzles of multi-stage intake circuit spraying, such as that illustrated for example in FIG. 3, in which the lateral intake channels 7, 7a and 7b in the swirl 1 start from a coaxial annular chamber common intermediate 10 itself connected to the inlet 6 of the nozzle by a plurality of intermediate lateral channels such as the channels 11a, 11b and 11c tangentially injecting the fluid into the common intermediate coaxial annular chamber 10 so as to rotate the fluid in the opposite direction of its rotation in the swirl chamber 1.
- the diameter Dc of the swirl chamber 1 is greater than the length Lc of said swirl 1.
Landscapes
- Nozzles (AREA)
- Reciprocating Pumps (AREA)
- Catching Or Destruction (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Description
- la figure 1 est une vue de côté partielle en coupe longitudinale d'une buse de pulvérisation selon un mode de réalisation particulier de l'invention ;
- la figure 2 est une coupe transversale selon le plan P-P de la figure 1 ;
- la figure 3 est une coupe transversale selon le même plan P-P d'une buse de pulvérisation selon un autre mode de réalisation de l'invention ;
- la figure 4 est une vue de côté en coupe longitudinale agrandie montrant une chambre de tourbillonnement selon un mode de réalisation de l'invention ; et
- la figure 5 est une vue de face agrandie de la zone de chambre de tourbillonnement de la figure 4.
Claims (9)
- Buse de pulvérisation ayant :une chambre centrale de tourbillonnement (1) limitée par une paroi périphérique (2) de révolution à axe longitudinal (I-I), par une paroi antérieure (3) à passage coaxial de sortie (4), et par une paroi postérieure (5),au moins un canal latéral d'admission de fluide (7) dans la paroi périphérique (2), ouvert dans la chambre centrale de tourbillonnement (1) et conformé pour injecter tangentiellement le fluide dans la chambre de tourbillonnement (1) selon une direction sensiblement perpendiculaire à l'axe longitudinal (I-I),un évidement coaxial postérieur (8) de révolution prévu dans la paroi postérieure (5) de la chambre de tourbillonnement (1),l'évidement coaxial postérieur (8) est cylindrique de révolution autour de l'axe longitudinal (I-I),l'évidement coaxial postérieur (8) a un diamètre (De) supérieur au diamètre (Ds) du passage coaxial de sortie (4).
- Buse de pulvérisation selon la revendication 1, caractérisée en ce que l'évidement coaxial postérieur (8) a un diamètre (De) inférieur à deux fois la valeur dudit diamètre (Ds) de passage coaxial de sortie (4).
- Buse de pulvérisation selon la revendication 2, caractérisée en ce que l'évidement coaxial postérieur (8) a un diamètre (De) compris entre 1,2 fois et 2 fois la valeur du diamètre (Ds) du passage coaxial de sortie (4).
- Buse de pulvérisation selon l'une quelconque des revendications 1 à 3, caractérisée en ce que l'évidement coaxial postérieur (8) a une longueur (Le) choisie voisine de sa valeur minimale juste suffisante pour obtenir l'effet recherché d'inhibition de l'écoulement résiduel de liquide.
- Buse de pulvérisation selon la revendication 4, caractérisée en ce que l'évidement coaxial postérieur (8) a une longueur (Le) comprise entre une fois et cinq fois la longueur (Ls) du passage coaxial de sortie (4).
- Buse de pulvérisation selon l'une quelconque des revendications 1 à 5, caractérisée en ce qu'une nervure annulaire frontale postérieure (9) borde l'entrée du passage coaxial de sortie (4) dans la chambre de tourbillonnement (1).
- Buse de pulvérisation selon l'une quelconque des revendications 1 à 6, caractérisée en ce que le passage coaxial de sortie (4) est un tronçon de cône dont le demi-angle au sommet (A) est compris entre 0° et 3° environ et converge vers la sortie.
- Buse de pulvérisation selon l'une quelconque des revendications 1 à 7, caractérisée en ce qu'elle comprend une pluralité de canaux latéraux d'admission (7, 7a, 7b) régulièrement répartis en périphérie de la chambre de tourbillonnement (1).
- Buse de pulvérisation selon la revendication 8, caractérisée en ce que les canaux latéraux d'admission (7, 7a, 7b) partent d'une chambre annulaire coaxiale intermédiaire commune (10) elle-même reliée à l'entrée (6) de la buse par une pluralité de canaux latéraux intermédiaires (11a, 11b, 11c) injectant tangentiellement le fluide dans la chambre annulaire coaxiale intermédiaire commune (10) de façon à faire tourner le fluide dans le sens opposé de sa rotation dans la chambre de tourbillonnement (1).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9716748A FR2772644B1 (fr) | 1997-12-24 | 1997-12-24 | Buse de pulverisation a moyen statique d'inhibition d'ecoulement |
FR9716748 | 1997-12-24 | ||
PCT/IB1998/002101 WO1999033572A1 (fr) | 1997-12-24 | 1998-12-22 | Buse de pulverisation a moyen statique d'inhibition d'ecoulement |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1042072A1 EP1042072A1 (fr) | 2000-10-11 |
EP1042072B1 true EP1042072B1 (fr) | 2004-06-30 |
Family
ID=9515339
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98959100A Expired - Lifetime EP1042072B1 (fr) | 1997-12-24 | 1998-12-22 | Buse de pulverisation a moyen statique d'inhibition d'ecoulement |
Country Status (10)
Country | Link |
---|---|
US (1) | US6371389B1 (fr) |
EP (1) | EP1042072B1 (fr) |
JP (1) | JP2001526957A (fr) |
AT (1) | ATE270153T1 (fr) |
AU (1) | AU1501699A (fr) |
BR (1) | BR9814352A (fr) |
CA (1) | CA2315908A1 (fr) |
DE (1) | DE69824890D1 (fr) |
FR (1) | FR2772644B1 (fr) |
WO (1) | WO1999033572A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101905203A (zh) * | 2009-06-04 | 2010-12-08 | 雷格扎姆分配***公司 | 用于受压液体的喷散***的按钮 |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2821573B1 (fr) * | 2001-03-05 | 2003-06-13 | Verbena Corp N V | Buse de pulverisation a canaux profiles |
US6659369B1 (en) * | 2002-06-12 | 2003-12-09 | Continental Afa Dispensing Company | High viscosity liquid sprayer nozzle assembly |
US6971557B2 (en) * | 2003-06-19 | 2005-12-06 | S. C. Johnson & Son, Inc. | Actuator for a pressurized material dispenser |
FR2858568B1 (fr) * | 2003-08-08 | 2006-09-15 | Valois Sas | Tete de pulverisation de produit liquide |
DE10361349B4 (de) * | 2003-12-17 | 2005-12-08 | Lechler Gmbh | Kegeldüse |
JP2006055745A (ja) * | 2004-08-20 | 2006-03-02 | Cosmo Tec Kk | エアレスガン用ノズルヘッド・エアレスガン |
US7320440B2 (en) * | 2005-02-07 | 2008-01-22 | Pratt & Whitney Canada Corp. | Low cost pressure atomizer |
US8500044B2 (en) * | 2007-05-04 | 2013-08-06 | S.C. Johnson & Son, Inc. | Multiple nozzle differential fluid delivery head |
MX2008011252A (es) * | 2006-03-07 | 2008-09-10 | Boehringer Ingelheim Int | Tobera de remolino. |
JP2008057652A (ja) * | 2006-08-31 | 2008-03-13 | Hara Mitsufumi | オリフィス部材 |
FR2909908B1 (fr) * | 2006-12-15 | 2009-02-27 | Rexam Dispensing Systems Sas | Buse de pulverisation, organe de distribution comprenant une telle buse, distributeur comprenant un tel organe et utilisation d'une telle buse. |
US8820664B2 (en) | 2007-05-16 | 2014-09-02 | S.C. Johnson & Son, Inc. | Multiple nozzle differential fluid delivery head |
US9242256B2 (en) * | 2007-07-17 | 2016-01-26 | S.C. Johnson & Son, Inc. | Aerosol dispenser assembly having VOC-free propellant and dispensing mechanism therefor |
FR2949762B1 (fr) * | 2009-09-10 | 2011-12-09 | Rexam Dispensing Sys | Bouton poussoir pour un systeme de distribution d'un produit sous pression. |
JP2011235197A (ja) * | 2010-04-30 | 2011-11-24 | Yoshino Kogyosho Co Ltd | ノズルチップ |
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 |
DE202013002283U1 (de) * | 2013-03-11 | 2014-06-12 | Neoperl Gmbh | Zerstäuberdüse für einen sanitären Wasserauslauf sowie sanitäre Auslautarmatur mit einem Wasserauslauf |
JP6549216B2 (ja) * | 2014-08-15 | 2019-07-24 | ディエルエイチ・ボウルズ・インコーポレイテッドdlhBOWLES Inc. | 共用相互作用領域を備えた多入口多噴霧流体カップノズルおよび噴霧生成方法 |
CN204994473U (zh) * | 2015-08-03 | 2016-01-27 | 上海爱农机电设备有限公司 | 便携式超细雾化机 |
FR3050125B1 (fr) * | 2016-04-14 | 2021-12-17 | Albea Le Treport | Buse de pulverisation, notamment pour un systeme de distribution d'un produit sous pression muni d'un bouton poussoir, et systeme de distribution comprenant une telle buse |
KR102446313B1 (ko) * | 2020-07-17 | 2022-09-21 | 권태웅 | 분무기용 노즐 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2541410C3 (de) * | 1975-09-17 | 1978-05-24 | Danfoss A/S, Nordborg (Daenemark) | Druckzerstäubungsdüse für ölbrenner |
US4020979A (en) * | 1975-10-15 | 1977-05-03 | Summit Packaging Systems, Inc. | Squeeze-bottle-type spray dispenser |
US5547132A (en) * | 1994-10-20 | 1996-08-20 | Calmar Inc. | Sprayer having variable spray pattern |
US5738282A (en) * | 1996-03-20 | 1998-04-14 | Calmar Inc. | Pump sprayer nozzle for producing a solid spray pattern |
-
1997
- 1997-12-24 FR FR9716748A patent/FR2772644B1/fr not_active Expired - Fee Related
-
1998
- 1998-12-22 CA CA002315908A patent/CA2315908A1/fr not_active Abandoned
- 1998-12-22 BR BR9814352-2A patent/BR9814352A/pt active Search and Examination
- 1998-12-22 AT AT98959100T patent/ATE270153T1/de not_active IP Right Cessation
- 1998-12-22 AU AU15016/99A patent/AU1501699A/en not_active Abandoned
- 1998-12-22 WO PCT/IB1998/002101 patent/WO1999033572A1/fr active IP Right Grant
- 1998-12-22 US US09/582,366 patent/US6371389B1/en not_active Expired - Fee Related
- 1998-12-22 EP EP98959100A patent/EP1042072B1/fr not_active Expired - Lifetime
- 1998-12-22 JP JP2000526306A patent/JP2001526957A/ja active Pending
- 1998-12-22 DE DE69824890T patent/DE69824890D1/de not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101905203A (zh) * | 2009-06-04 | 2010-12-08 | 雷格扎姆分配***公司 | 用于受压液体的喷散***的按钮 |
EP2258484A1 (fr) * | 2009-06-04 | 2010-12-08 | Rexam Dispensing Systems | Bouton poussoir pour un système de distribution d'un liquide sous pression |
FR2946326A1 (fr) * | 2009-06-04 | 2010-12-10 | Rexam Dispensing Sys | Bouton poussoir pour un systeme de distribution d'un liquide sous pression |
US8640977B2 (en) | 2009-06-04 | 2014-02-04 | Rexam Dispensing Systems S.A.S. | Push-button for a system for dispensing a liquid under pressure |
CN101905203B (zh) * | 2009-06-04 | 2014-09-24 | 阿拉贝阿勒特雷波尔简易股份公司 | 用于受压液体的喷散***的按钮 |
Also Published As
Publication number | Publication date |
---|---|
DE69824890D1 (de) | 2004-08-05 |
BR9814352A (pt) | 2002-03-05 |
CA2315908A1 (fr) | 1999-07-08 |
ATE270153T1 (de) | 2004-07-15 |
US6371389B1 (en) | 2002-04-16 |
FR2772644B1 (fr) | 2000-02-04 |
EP1042072A1 (fr) | 2000-10-11 |
JP2001526957A (ja) | 2001-12-25 |
AU1501699A (en) | 1999-07-19 |
WO1999033572A1 (fr) | 1999-07-08 |
FR2772644A1 (fr) | 1999-06-25 |
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