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EP0217744A1 - Dispositif de pulvérisation pour une réserve compressible - Google Patents

Dispositif de pulvérisation pour une réserve compressible Download PDF

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Publication number
EP0217744A1
EP0217744A1 EP86810380A EP86810380A EP0217744A1 EP 0217744 A1 EP0217744 A1 EP 0217744A1 EP 86810380 A EP86810380 A EP 86810380A EP 86810380 A EP86810380 A EP 86810380A EP 0217744 A1 EP0217744 A1 EP 0217744A1
Authority
EP
European Patent Office
Prior art keywords
liquid
nozzle
air
mixture
spray device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP86810380A
Other languages
German (de)
English (en)
Other versions
EP0217744B1 (fr
Inventor
George Edgar Callahan
Harald Koch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT86810380T priority Critical patent/ATE47334T1/de
Publication of EP0217744A1 publication Critical patent/EP0217744A1/fr
Application granted granted Critical
Publication of EP0217744B1 publication Critical patent/EP0217744B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • 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
    • B05B11/0027—Means for neutralising the actuation of the sprayer ; Means for preventing access to the sprayer actuation means
    • B05B11/0029—Valves not actuated by pressure
    • 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
    • B05B11/04—Deformable containers producing the flow, e.g. squeeze bottles
    • B05B11/042—Deformable containers producing the flow, e.g. squeeze bottles the spray being effected by a gas or vapour flow in the nozzle, spray head, outlet or dip tube
    • B05B11/043—Deformable containers producing the flow, e.g. squeeze bottles the spray being effected by a gas or vapour flow in the nozzle, spray head, outlet or dip tube designed for spraying a liquid
    • 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
    • B05B7/10—Spray pistols; Apparatus for discharge producing a swirling discharge
    • 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
    • B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
    • B05B7/1209—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means for each liquid or other fluent material being manual and interdependent
    • 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
    • B05B11/0027—Means for neutralising the actuation of the sprayer ; Means for preventing access to the sprayer actuation means
    • B05B11/0032—Manually actuated means located downstream the discharge nozzle for closing or covering it, e.g. shutters

Definitions

  • the invention relates to a spray device according to the preamble of claim 1.
  • Such devices have been known and used for a long time. Today they are often attached to disposable plastic containers and thrown away together with the container after the contents of the container have been used up.
  • the best fine atomizers would be the double-piston aerosol pumps with a spring-loaded valve that only releases the liquid when the excess pressure exceeds about 5 bar. With larger dispensing quantities of more than 0.2 ml per stroke, the aerosol is noticeably coarser, because otherwise the pressure required would make manual operation more difficult.
  • Piston pumps are relatively expensive because they have to be manufactured from several moving parts.
  • the atomizers, in which the pressure is applied by compressing the container, can therefore be significantly simpler in construction.
  • DE-B-059 363 shows an atomizer head for plastic bottles, in which a tube extension serving as a liquid nozzle projects into a mixing chamber. The air enters the mixing chamber through bores and the liquid / air mixture leaves the mixing chamber through a spray nozzle arranged coaxially with the pipe socket.
  • the purpose of the invention is to create a spray device without moving parts, which, with the low and irregular overpressures of the compressible plastic bottle, has the performance characteristics of the pump atomizers mentioned above. With the smaller delivery quantities, it should work drop-free and generate an aerosol that is not inferior in fineness, uniformity and quantity to that of the complicated and expensive double-piston pumps.
  • the spray device should enable dispensing quantities of up to 1 ml per stroke, but - as is also the case with single-piston pumps - with less fine atomization.
  • production in a modular design should be possible in such a way that the essential performance parameters can be determined in each case by the use of components which can be interchanged.
  • the spray device should be easy to manufacture in the form of a reclosable bottle cap. This object is achieved by a spray device which has the features in the characterizing part of claim 1.
  • the application range of the device can be further improved by arranging a swirl chamber in front of the liquid nozzle, which is connected to the riser pipe via a tangential inlet channel.
  • the annular chamber can also be provided with a tangential inlet channel.
  • the inlet channels are advantageously arranged in such a way that the same direction of rotation of the liquid or air flow is achieved. Thereby the radial velocity component of the mixture is increased, which leads to an expansion of the beam angle.
  • the aerosol is distributed more evenly over a larger area.
  • annular chamber and the mixture nozzle are assigned to an air-guiding component and the swirl chamber and the liquid nozzle are assigned to a fluid-guiding component, and if these components can be fixed in a holding part at the same axis one behind the other.
  • These components can be inexpensively manufactured, for example, from plastic material and assembled in the simplest way.
  • the performance characteristics of the spraying device can be adapted to the respective intended use.
  • the distance between the components arranged coaxially in the pot-shaped holding part can be changed by spacing elements, different performance characteristics of the spray device can be achieved with the same components.
  • the components arranged in the holding part are rotationally symmetrical and are rotatably mounted about their axis in such a way that, together with the side wall of the pot-shaped holding part, they form a shut-off device for interrupting the inlet channels.
  • the container can be closed by simply rotating the component group.
  • One of the components is advantageously provided with a turning handle.
  • the holding part is advantageously formed in one piece with a closure device for the container mouth, for practical reasons the spray axis is approximately transverse to the axis of the container.
  • FIG. 1 shows a spraying device which consists of three components, which can be produced, for example, from plastic material using the injection molding process.
  • the Liquid-carrying component 23 with the liquid nozzle 1 and the air-carrying component 29 with the mixture nozzle 4 are essentially designed as rotationally symmetrical components and fixed in the holding part l2, which is approximately cup-shaped.
  • the holding part l2 is provided with the closure device l9, which can be designed, for example, as a screw cap with a screw thread 25. This screw cap can be screwed onto a standard plastic bottle.
  • a sealing sleeve 26 is used, which seals on the inner wall of the container mouth.
  • the riser pipe 2 is plugged onto a connecting piece 27, which opens into the swirl chamber 9 of the liquid-carrying component 23 via an inlet duct 10.
  • the inlet duct 10 leads tangentially into the swirl chamber 9, as can be seen in particular from FIG. 2.
  • the inlet opening 24 of the inlet channel 10 is visible in FIG.
  • the liquid nozzle 1 has an approximately conical inner wall section 5.
  • the liquid is supplied to the liquid nozzle 1 via the riser pipe 2, the nozzle 27, the inlet channel 10 and the swirl chamber 9.
  • the outer wall 6 of the liquid nozzle 1 is also conical, which has an influence on the flow parameter of the air, as will be shown below.
  • the mixing nozzle 4 also has a conical inner wall section 5 '.
  • the liquid-carrying component 23 connects directly to the air-carrying component 29 and, together with the outer wall 6 of the liquid nozzle, forms an annular chamber 3 which surrounds the liquid nozzle 1.
  • An inlet channel 11 leads into the annular chamber 3 and is connected via an air opening 30 to the air space of the container lying above the liquid. As FIG. 3 shows, in the exemplary embodiment shown the inlet channel 11 is guided radially into the annular chamber 3, the inlet opening 28 being still visible in FIG.
  • the liquid-carrying component 23 and the air-carrying component 29 are arranged on a common axis 20, which is also the spray axis.
  • the opening 7 of the liquid nozzle is, however, arranged in the spray direction in front of the opening 8 for the mixture nozzle.
  • the liquid nozzle 1 projects into the mixture nozzle 4 in such a way that a conical annular gap 34 is formed which leads from the annular chamber 3 into the mixture nozzle 4.
  • the liquid-carrying component 23 and the air-carrying component 29 can be fastened, for example, by latching or by welding in the cup-shaped holding part 12.
  • a hinged lid 3l with a film hinge 32 can be pivotally attached to the closure device l9.
  • a plug 22 is arranged on the hinged lid 3l, which in the folded-up position penetrates into the opening 8 of the mixture nozzle and closes it.
  • a cap can also be used instead of the stopper.
  • FIG. 4 shows an alternative embodiment in which the inlet channel l0 is divided into two separate channels l0 'and l0' ', which likewise lead tangentially to diametrically opposite inlet openings 24 and 24' on the swirl chamber 9.
  • FIG. 5 shows an inlet duct 11 for the air, which also leads tangentially into the annular chamber 3 instead of radially.
  • the liquid nozzle 1 and the mixture nozzle 4 are configured and arranged similarly to those in the exemplary embodiment according to FIG.
  • the liquid-carrying component 23 consists of two components, namely the chamber part 14 and the nozzle part 35.
  • the swirl chamber 9 becomes predominant formed by the chamber part l4.
  • the holding part l2 is provided with an opening l8.
  • a rotary handle l7 projects through opening l8 and is firmly connected to chamber part l4. All components in the holding part are rotationally symmetrical and connected to one another to form a package. The whole package is rotatably mounted in the holding part.
  • the components 23 and 29 together with the side wall l6 of the holding part l2 form a shut-off device for the inlet channels l0 and ll.
  • the entire component group on pivot handle l7 is pivoted until side wall l6 completely closes the ducts.
  • the cross section of the inlet channels can also only be reduced, so that a smaller amount of liquid flows out.
  • the holding part l2 is made of an elastic plastic material, the package consisting of the chamber part, liquid nozzle and mixing nozzle can be bumped into the cup-shaped holding part against a holder shoulder 33.
  • FIG. 6 also shows a spacer element l5, which is arranged between the liquid-carrying component 23 and the air-carrying component 29 in order to enlarge the axial distance.
  • spacer elements above all facilitate the standardization of the components, so that, for example, the same components 23, 29 can be used for different atomization characteristics.
  • FIG. 1 and FIG. 6 which are shown approximately on the same scale 10: 1.
  • the liquid flow is determined by the design of the Inlet channel l0, the inlet opening 24, the swirl chamber 9 and the inner wall portion 5 of the liquid nozzle l influenced.
  • the air flow is influenced by the configuration of the inlet channel 11 of the inlet opening 28, the annular chamber 3 and the annular gap 34, and the individual diameter ratios to one another. It is therefore necessary to compare FIGS. 1 and 6 with regard to these parts.
  • FIG. 1 shows a spray device for the drop-free delivery of a relatively small amount of liquid in the form of a fine aerosol.
  • a plastic bottle with a volume of approx. 200 ml and a delivery quantity of 0.1 to 0.15 ml per stroke would be common. This amount would have to be dispensed within about 0.25 seconds if the flow rate was sufficient for fine atomization.
  • an average excess pressure of 0.2 to 0.3 bar would be required during this time. The flow cross-sections of both media are therefore comparatively small.
  • the diameter of the swirl chamber 9 is relatively large in relation to the diameter of the opening 7 on the liquid nozzle 1. This causes a steep pressure gradient between the inlet opening 24 and the opening 7, which accelerates the liquid flow on this route. At the same time, the amount of liquid or the yield per pressure surge is reduced by the relatively high counterpressure at the inlet opening 24.
  • the diameter of the annular chamber 3 is larger than the diameter of the opening 8 at the mixture nozzle 4.
  • the air flow in the annular chamber 3 is slowed down and the air pressure is increased, so that the hollow conical annular gap 34 is flowed about symmetrically.
  • the cone angle of the Outer wall section 6 on the liquid nozzle 1 is equal to or smaller than that of the inner wall section 5 'on the mixing nozzle 4, so that the cross-sectional area of the annular gap 34 is continuously reduced in the exit direction. This accelerates the air flow in the annular gap 34.
  • FIG. 6 shows a spray device for coarse atomization of approximately 1.2 ml of liquid per stroke.
  • bottle volumes of up to 500 ml are common.
  • the flow cross-sections are larger, the flow speeds are lower and the average pressure is only approx. 0.1 bar.
  • the diameter of the swirl chamber 9 in relation to the diameter at the opening 7 is reduced in comparison to FIG. 1, since a high back pressure at the inlet opening 24 would reduce the amount of liquid.
  • the statements made with regard to FIG. 1 also apply to the remaining dimensions in this exemplary embodiment.
  • the spraying device in the plane of the opening 7 at the liquid nozzle the two media meet at their own maximum speed. Because of the upstream vortex chamber 9, the liquid emerges from the opening 7 as a hollow-conical jet, which promotes the mixing of the media. Both media experience individually and then together a speed increase with a corresponding pressure drop until the opening 8 at the mixing nozzle 4 is reached. The further the opening 7 is set back in the exit direction, the greater the overpressure at the opening 7 of the liquid nozzle 1. In this way, the performance characteristics of the spray device can be changed by changing the nozzle position while the flow paths are otherwise unchanged. It has already been pointed out that this is particularly advantageous for spacing elements for manufacturing reasons he follows. Of course, however, it is also possible, for example, to provide the components in the holding part 12 with a suitable thread, so that the distance between the two nozzles can be adjusted continuously by screwing them in to different depths.

Landscapes

  • Nozzles (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
EP86810380A 1985-09-02 1986-08-25 Dispositif de pulvérisation pour une réserve compressible Expired EP0217744B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86810380T ATE47334T1 (de) 1985-09-02 1986-08-25 Spruehvorrichtung zum aufsetzen auf einen zusammenpressbaren behaelter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH376585 1985-09-02
CH3765/85 1985-09-02

Publications (2)

Publication Number Publication Date
EP0217744A1 true EP0217744A1 (fr) 1987-04-08
EP0217744B1 EP0217744B1 (fr) 1989-10-18

Family

ID=4263010

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86810380A Expired EP0217744B1 (fr) 1985-09-02 1986-08-25 Dispositif de pulvérisation pour une réserve compressible

Country Status (4)

Country Link
US (1) US5115981A (fr)
EP (1) EP0217744B1 (fr)
AT (1) ATE47334T1 (fr)
DE (2) DE8621135U1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3710788A1 (de) * 1987-03-31 1988-11-10 Wolfgang Fuhrig Handdruckzerstaeuber
WO1989000086A1 (fr) * 1987-07-08 1989-01-12 Ing. Erich Pfeiffer Gmbh & Co. Kg Distributeur manuel de milieux
AU588093B2 (en) * 1986-03-24 1989-09-07 S.C. Johnson & Son, Inc. Spray cap assembly
US5275338A (en) * 1991-04-23 1994-01-04 Supermatic Kunststoff Ag Device for spraying or atomizing a liquid
CN105788677A (zh) * 2016-05-06 2016-07-20 上海核工程研究设计院 一种用于核电站乏燃料池喷淋冷却的喷嘴

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG45171A1 (en) * 1990-03-21 1998-01-16 Boehringer Ingelheim Int Atomising devices and methods
UA29399C2 (uk) * 1990-12-04 2000-11-15 Берінгер Інгельгайм Інтернаціональ Гмбх Сопло для видачі розпиленого струменя рідини, пристрій для розпилення рідини та пристрій для регулювання потоку рідини
IL100224A (en) * 1990-12-04 1994-10-21 Dmw Tech Ltd Spray nozzle
US5350116A (en) * 1993-03-01 1994-09-27 Bespak Plc Dispensing apparatus
DE4417486A1 (de) * 1994-05-19 1995-11-23 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung für Medien
NZ504021A (en) * 1997-10-17 2003-04-29 Systemic Pulmonary Delivery Lt Method and apparatus for delivering aerosolized medication having air discharged through air tube directly into plume of aerosolized medication
IL133226A (en) * 1999-11-30 2004-08-31 Mamtirim Dan Vortex liquid-atomizer
ITRM20030055A1 (it) * 2003-02-10 2004-08-11 Emsar Spa Testa erogatrice a nebulizzazione per flacone deformabile elasticamente per schiacciamento.
CA2542363C (fr) * 2003-10-17 2013-01-22 Tyco Healthcare Group Lp Dispositif d'agrafage chirurgical
GB0413164D0 (en) * 2004-06-12 2004-07-14 Ten Cate Plasticum Uk Ltd Dispensing apparatus
EP2107304A1 (fr) * 2008-04-01 2009-10-07 Siemens Aktiengesellschaft Buse de pulvérisation tourbillonnant destinée à la pulvérisation de carburant liquide et son procédé de fabrication, porte-glicleur pour un brûleur doté de la buse de pulvérisation rotative
US8517009B2 (en) * 2008-07-13 2013-08-27 Map Pharmaceuticals, Inc. Methods and apparatus for delivering aerosolized medication
US9573147B1 (en) * 2016-04-15 2017-02-21 Kaer Biotherapeutics Corporation Aerosolizing nozzle and method of operating such aerosolizing nozzle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH249364A (de) * 1946-03-28 1947-06-30 Ehrenzweig Max Vorrichtung zum Zerstäuben von Flüssigkeiten.
US2574865A (en) * 1947-06-17 1951-11-13 Edwards Miles Lowell Spray nozzle
US3392886A (en) * 1967-01-16 1968-07-16 Albert Valve for liquid containers
US4356941A (en) * 1980-05-19 1982-11-02 Republic Tool & Manufacturing Corporation Squeeze-type dispenser for powdered materials

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB187015A (en) * 1921-07-12 1922-10-12 Robert Findlay Hislop Improved liquid fuel burner
US3583602A (en) * 1969-04-03 1971-06-08 Lincoln J Gruber Dripless fluid spray apparatus
US4186882A (en) * 1977-12-08 1980-02-05 Harry Szczepanski Atomizing liquid dispenser
FR2411637A1 (fr) * 1977-12-15 1979-07-13 Aerosol Inventions Dev Tete de pulverisation pour recipient a parois souples

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH249364A (de) * 1946-03-28 1947-06-30 Ehrenzweig Max Vorrichtung zum Zerstäuben von Flüssigkeiten.
US2574865A (en) * 1947-06-17 1951-11-13 Edwards Miles Lowell Spray nozzle
US3392886A (en) * 1967-01-16 1968-07-16 Albert Valve for liquid containers
US4356941A (en) * 1980-05-19 1982-11-02 Republic Tool & Manufacturing Corporation Squeeze-type dispenser for powdered materials

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU588093B2 (en) * 1986-03-24 1989-09-07 S.C. Johnson & Son, Inc. Spray cap assembly
DE3710788A1 (de) * 1987-03-31 1988-11-10 Wolfgang Fuhrig Handdruckzerstaeuber
WO1989000086A1 (fr) * 1987-07-08 1989-01-12 Ing. Erich Pfeiffer Gmbh & Co. Kg Distributeur manuel de milieux
EP0306066A1 (fr) * 1987-07-08 1989-03-08 Ing. Erich Pfeiffer GmbH & Co. KG Dispositif manuel de distribution d'un fluide
JPH02504007A (ja) * 1987-07-08 1990-11-22 インジ・エリッヒ・プファイファ・ゲーエムベーハー・ウント・コー・カーゲー 媒体用手動操作排出装置
AU619200B2 (en) * 1987-07-08 1992-01-23 Ing. Erich Pfeiffer Gmbh & Co. Kg Hand-operated applicator for media
US5147087A (en) * 1987-07-08 1992-09-15 Ing. Erich Pfeiffer Gmbh & Co. Kg Hand-operated applicator for media
US5275338A (en) * 1991-04-23 1994-01-04 Supermatic Kunststoff Ag Device for spraying or atomizing a liquid
CN105788677A (zh) * 2016-05-06 2016-07-20 上海核工程研究设计院 一种用于核电站乏燃料池喷淋冷却的喷嘴

Also Published As

Publication number Publication date
ATE47334T1 (de) 1989-11-15
US5115981A (en) 1992-05-26
EP0217744B1 (fr) 1989-10-18
DE3666364D1 (en) 1989-11-23
DE8621135U1 (de) 1987-01-29

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