WO1999033572A1 - 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
- WO1999033572A1 WO1999033572A1 PCT/IB1998/002101 IB9802101W WO9933572A1 WO 1999033572 A1 WO1999033572 A1 WO 1999033572A1 IB 9802101 W IB9802101 W IB 9802101W WO 9933572 A1 WO9933572 A1 WO 9933572A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coaxial
- spray nozzle
- fluid
- swirl chamber
- outlet passage
- Prior art date
Links
- 239000007921 spray Substances 0.000 title claims abstract description 34
- 230000002401 inhibitory effect Effects 0.000 title claims description 5
- 230000003068 static effect Effects 0.000 title description 3
- 239000012530 fluid Substances 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 3
- 238000005507 spraying Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000002730 additional effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000036961 partial effect Effects 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
- B05B1/34—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 for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
Definitions
- the present invention relates to liquid spray nozzles, which can be used in the most diverse applications such as, for example, spray pumps, vaporizers, nozzles for combustion burners, injectors for internal combustion engines.
- the invention applies more particularly to spray nozzles in which the liquid to be sprayed is brought into a central swirl chamber by lateral channels for admitting fluid tangentially injecting the liquid which then exits in an axial direction of exit by a coaxial outlet passage out of the central vortex chamber.
- the swirl chamber is conical, and the liquid is injected tangentially along the conical peripheral wall of the chamber in an oblique direction oriented towards 1 before.
- the outlet has a rounded lip.
- a blind posterior coaxial recess is provided in the rear wall of the swirl chamber, with a diameter smaller than that of the outlet orifice, in order to stabilize the spray cone at the outlet of the nozzle.
- One known solution consists in providing a valve at the inlet of the spray nozzle. This solution is however expensive, a source of blockages, and it disturbs the operation by introducing a threshold effect at startup. Such a valve also requires the provision of upstream fluid pressures which are sufficient for its correct operation, that is to say significantly greater than the pressure necessary for the operation of the nozzle itself.
- the problem proposed by the present invention is to design a static and inexpensive means of inhibiting flow out of the spray nozzle as soon as its supply is interrupted.
- the invention results from the surprising observation that, during the operation of a spray nozzle with central swirl chamber, if a swirl of liquid is produced in the swirl chamber in a plane generally perpendicular to the axis of the outlet orifice and if a sufficiently large posterior coaxial recess is provided, the residual flow out of the nozzle is inhibited as soon as the nozzle is no longer supplied with liquid.
- the invention provides a spray nozzle having:
- a central vortex chamber limited by a peripheral wall of revolution with a longitudinal axis, by a front wall with coaxial outlet passage, and by a rear wall, - at least one lateral channel for admitting fluid into the peripheral wall, open in the central swirl chamber and shaped to tangentially inject the fluid into the swirl chamber,
- the lateral fluid inlet channel or channels are shaped to inject the fluid into the swirl chamber in a direction substantially perpendicular to the longitudinal axis
- the rear coaxial recess is dimensioned and shaped so as to inhibit any residual flow of fluid through the coaxial outlet passage as soon as the supply of fluid is interrupted at the inlet of the spray nozzle.
- the posterior coaxial recess is of revolution around said longitudinal axis. It has been observed that good results in inhibiting residual liquid flow are obtained by providing a posterior coaxial recess having a diameter greater than the diameter of the coaxial outlet passage, more advantageously between 1.2 and 2 times the diameter of the coaxial output passage.
- the posterior coaxial recess may have a length between once and five times the length of the coaxial outlet passage.
- Too short lengths do not produce inhibition of residual flow. Too long lengths apparently have no additional effect.
- FIG. 1 is a partial side view in longitudinal section of a spray nozzle according to a particular embodiment of the invention
- FIG. 2 is a cross section along the plane P-P of Figure 1;
- FIG. 3 is a cross section along the same plane P-P of a spray nozzle according to another embodiment of one invention.
- FIG. 4 is a side view in enlarged longitudinal section showing a swirl chamber according to an embodiment of the invention
- FIG. 5 is an enlarged front view of the swirl chamber zone of FIG. 4.
- a spray nozzle in the embodiment illustrated in FIG. 1, comprises a central swirl chamber 1 limited by a peripheral wall 2 of revolution of longitudinal axis II, by a front wall 3 having a coaxial outlet passage 4, and through a rear wall 5.
- the fluid is brought into the swirl chamber 1, from an outlet 6, by at least one lateral fluid intake channel 7 formed in the peripheral wall 2, open in the central swirl chamber 1, and shaped to tangentially inject the fluid into the swirl chamber 1 in a direction substantially perpendicular to the longitudinal axis II.
- there occurs in the swirl chamber 1 a fluid vortex in a plane substantially perpendicular to the longitudinal axis I-I of the swirl chamber.
- the rear wall 5 of the swirl chamber 1 comprises a rear coaxial recess 8 dimensioned and shaped so as to inhibit any residual flow of fluid through the coaxial outlet passage 4 from the interruption of fluid supply to the inlet 6 of the spray nozzle.
- the posterior coaxial recess 8 is of revolution around the longitudinal axis I-I. Its diameter De is greater than the diameter Ds of the coaxial outlet passage 4, and less than twice the value of said diameter Ds of the coaxial outlet passage 4.
- the fluid penetrates through the tangential lateral channels such as the channel 7, enters in a vortex in the swirl chamber 1 around the longitudinal axis II in a plane substantially perpendicular to said axis, then exits axially by the coaxial outlet passage 4. It may be advantageous to choose a length Le of the posterior coaxial recess 8 which is just sufficient for obtain the desired effect of inhibiting residual flow, without limiting its length, but without excess.
- the inhibition of residual liquid flow can be further improved by providing a posterior frontal annular rib 9 bordering the entry of the coaxial outlet passage 4 in the swirl chamber 1, as best seen in FIG. 4.
- a rib of which 1 'radial thickness and 1 axial thickness are about 100 microns gives good results. Other values can be chosen depending on the flow and liquid pressure conditions.
- the coaxial outlet passage 4 is a cone section whose half-angle at the apex A is between approximately 0 ° and 3 ° and converges towards the outlet, as illustrated in FIG. 4.
- the invention applies to a spray nozzle which may have various structures for swirling the fluid, that is to say having at least one lateral tangential fluid inlet channel 7.
- a spray nozzle which may have various structures for swirling the fluid, that is to say having at least one lateral tangential fluid inlet channel 7.
- the invention also applies to spray nozzles with a multi-stage intake circuit, such as that illustrated for example in FIG. 3, in which the lateral intake channels 7, 7a and 7b in the swirl chamber 1 start from a common intermediate coaxial annular chamber 10 itself connected to the inlet 6 of the nozzle by a plurality of intermediate lateral channels such as channels 11a, 11b and 11e 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.
- a multi-stage intake circuit such as that illustrated for example in FIG. 3, in which the lateral intake channels 7, 7a and 7b in the swirl chamber 1 start from a common intermediate coaxial annular chamber 10 itself connected to the inlet 6 of the nozzle by a plurality of intermediate lateral channels such as channels 11a, 11b and 11e 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 De of the swirl chamber 1 is greater than the length Le of said swirl chamber 1.
Landscapes
- Nozzles (AREA)
- Catching Or Destruction (AREA)
- Reciprocating Pumps (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT98959100T ATE270153T1 (de) | 1997-12-24 | 1998-12-22 | Zerstäubungsdüse mit statischem mittel zur hemmung der strömung |
BR9814352-2A BR9814352A (pt) | 1997-12-24 | 1998-12-22 | Bocal pulverizador |
JP2000526306A JP2001526957A (ja) | 1997-12-24 | 1998-12-22 | 流出を抑制する静電気手段を有するスプレーノズル |
AU15016/99A AU1501699A (en) | 1997-12-24 | 1998-12-22 | Spray nozzle with static means for inhibiting outflow |
EP98959100A EP1042072B1 (fr) | 1997-12-24 | 1998-12-22 | Buse de pulverisation a moyen statique d'inhibition d'ecoulement |
DE69824890T DE69824890D1 (de) | 1997-12-24 | 1998-12-22 | Zerstäubungsdüse mit statischem mittel zur hemmung der strömung |
US09/582,366 US6371389B1 (en) | 1997-12-24 | 1998-12-22 | Spray nozzle with static means for inhibiting outflow |
CA002315908A CA2315908A1 (fr) | 1997-12-24 | 1998-12-22 | Buse de pulverisation a moyen statique d'inhibition d'ecoulement |
Applications Claiming Priority (2)
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 |
FR97/16748 | 1997-12-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999033572A1 true WO1999033572A1 (fr) | 1999-07-08 |
Family
ID=9515339
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB1998/002101 WO1999033572A1 (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) |
Families Citing this family (22)
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 |
AU2007222673A1 (en) * | 2006-03-07 | 2007-09-13 | Boehringer Ingelheim International Gmbh | Swirl |
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 |
FR2946326B1 (fr) * | 2009-06-04 | 2011-08-05 | Rexam Dispensing Sys | Bouton poussoir pour un systeme de distribution d'un liquide sous pression |
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 |
EP3194079B1 (fr) * | 2014-08-15 | 2022-01-26 | dlhBowles Inc. | Buse de coupelle fluidique à plusieurs entrées et à plusieurs jets pulvérisés comprenant une zone d'interaction commune et procédé de production de jets pulvérisés |
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 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2324986A1 (fr) | 1975-09-17 | 1977-04-15 | Danfoss As | Buse pulverisatrice sous pression pour bruleur a huile |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 WO PCT/IB1998/002101 patent/WO1999033572A1/fr active IP Right Grant
- 1998-12-22 DE DE69824890T patent/DE69824890D1/de not_active Expired - Lifetime
- 1998-12-22 CA CA002315908A patent/CA2315908A1/fr not_active Abandoned
- 1998-12-22 AU AU15016/99A patent/AU1501699A/en not_active Abandoned
- 1998-12-22 US US09/582,366 patent/US6371389B1/en not_active Expired - Fee Related
- 1998-12-22 AT AT98959100T patent/ATE270153T1/de not_active IP Right Cessation
- 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 BR BR9814352-2A patent/BR9814352A/pt active Search and Examination
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2324986A1 (fr) | 1975-09-17 | 1977-04-15 | Danfoss As | Buse pulverisatrice sous pression pour bruleur a huile |
Also Published As
Publication number | Publication date |
---|---|
BR9814352A (pt) | 2002-03-05 |
JP2001526957A (ja) | 2001-12-25 |
ATE270153T1 (de) | 2004-07-15 |
EP1042072A1 (fr) | 2000-10-11 |
US6371389B1 (en) | 2002-04-16 |
FR2772644A1 (fr) | 1999-06-25 |
EP1042072B1 (fr) | 2004-06-30 |
AU1501699A (en) | 1999-07-19 |
DE69824890D1 (de) | 2004-08-05 |
CA2315908A1 (fr) | 1999-07-08 |
FR2772644B1 (fr) | 2000-02-04 |
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