EP1886731B1 - Agencement de buse de pulvérisation - Google Patents

Agencement de buse de pulvérisation Download PDF

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Publication number
EP1886731B1
EP1886731B1 EP07014589A EP07014589A EP1886731B1 EP 1886731 B1 EP1886731 B1 EP 1886731B1 EP 07014589 A EP07014589 A EP 07014589A EP 07014589 A EP07014589 A EP 07014589A EP 1886731 B1 EP1886731 B1 EP 1886731B1
Authority
EP
European Patent Office
Prior art keywords
channel portion
ejection orifice
spray nozzle
channel
cross
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.)
Active
Application number
EP07014589A
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German (de)
English (en)
Other versions
EP1886731A3 (fr
EP1886731A2 (fr
Inventor
Michael Horn
Oskar Pittl
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.)
Lindal Dispenser GmbH
Original Assignee
Lindal Dispenser GmbH
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 Lindal Dispenser GmbH filed Critical Lindal Dispenser GmbH
Priority to PL07014589T priority Critical patent/PL1886731T3/pl
Publication of EP1886731A2 publication Critical patent/EP1886731A2/fr
Publication of EP1886731A3 publication Critical patent/EP1886731A3/fr
Application granted granted Critical
Publication of EP1886731B1 publication Critical patent/EP1886731B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • 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
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B05B1/04—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in flat form, e.g. fan-like, sheet-like
    • B05B1/042—Outlets having two planes of symmetry perpendicular to each other, one of them defining the plane of the jet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S239/00—Fluid sprinkling, spraying, and diffusing
    • Y10S239/19—Nozzle materials

Definitions

  • the invention relates to a spray can arrangement according to the preamble of claim 1.
  • Such spray can arrangements serve to atomize a medium, for example a perfume, a varnish or another liquid.
  • the medium to be sprayed is introduced by means of a propellant or a pump mechanism into a nozzle channel of the spray can arrangement. Due to the special geometry of the nozzle channel, the medium is first compressed, passes through a small passage opening and escapes on the other side of the nozzle channel in the form of small droplets.
  • the geometry of the nozzle channel is crucial for the spray properties of the spray can arrangement.
  • very different characteristics with respect to the droplets and their distribution in the spray jet may be desired, for example a flat spray fan in which the droplets are concentrated in the fan center or distributed in any other predetermined manner over the extent of the spray fan.
  • document DE2734950 shows a spray can arrangement according to the preamble of claim 1.
  • a spray can arrangement is from the U.S. Patent 4,346,849 Also known and consists of a spray nozzle and a holder. Both. Components are made of metal and are soldered together.
  • a very hard material is used, preferably sintered tungsten carbide.
  • the Sprühdüsc is made from a small cylindrical portion of this material by a wedge-shaped groove in the pressure-side circular surface of the cylinder and a trapezoidal in the opposite circular surface of the cylinder Groove, which runs perpendicular to the wedge-shaped groove, is ground. Through the two interlocking grooves formed in the middle of a passage opening. The spray nozzle is then inserted into a holder, which also consists of metal, and soldered to it.
  • a cylindrical channel is formed, which leads to the wedge-shaped groove of the spray nozzle.
  • the known spray nozzle which is also referred to as a cross-slotted nozzle, favorable spray properties are achieved, however, the known spray nozzle assembly is very expensive to manufacture.
  • the first channel section is tapered by two mutually facing side surfaces to form an oblong oblique cross sectional area.
  • the narrow cross-sectional area can have an arbitrary shape, in particular a curvature or a juxtaposition of differently oriented sections. Due to the tapering cross section of the first channel section, an inflowing medium is first compressed. After flowing through the passage opening, the medium passes into the adjacent second passage section, which has two opposite, with increasing distance from the passage opening remote from each other side surfaces.
  • the cross section of the second channel section therefore widens in the flow direction, which favors a well-defined spraying.
  • the edges of the two side surfaces of the second channel section which face the passage opening extend transversely to the longitudinal direction of the oblong narrow cross-sectional area.
  • the two cross sections formed by the respective two side surfaces of the first and second channel sections thus intersect, for example, at a right angle.
  • the invention is based on the recognition that the use of a particularly hard material for the spray nozzle according to the prior art for the purpose of reducing wear is not required for many applications.
  • the equipment of provided for a single filling spray cans or atomizers with a spray head and a spray nozzle assembly made entirely of plastic according to the invention meets the requirements.
  • An application example is the spraying of undiluted olive oil by the airless method with a spray head comprising a spray nozzle arrangement according to the invention, for example for spraying salads.
  • the second channel section is delimited between its two side surfaces by two boundary surfaces arranged approximately perpendicular to the plane of the passage opening, which have a lateral distance from the passage opening.
  • boundary surfaces are arranged approximately on the jacket of an imaginary cylinder whose longitudinal axis is perpendicular to the plane of the passage opening. It has been shown that this results in a particularly favorable spray behavior.
  • the nozzle channel comprises a third channel section adjoining the second channel section and having two side surfaces each extending in the plane of one of the two side surfaces of the second channel section and approximately two of the two side surfaces of the third channel section is delimited perpendicular to the plane of the passage opening arranged boundary surfaces, which are arranged at a lateral distance from the boundary surfaces of the second channel portion and further than these away from the passage opening.
  • the third channel portion another portion of the nozzle channel is provided, the expansion in the flow direction in the one direction corresponds to the expansion of the second channel portion, while in the direction perpendicular thereto between the second and third channel portion a step is formed.
  • the geometric design of the second and third channel section, in particular the forming step allows a further targeted influence on the spray behavior.
  • the nozzle channel preferably comprises a fourth channel section which is arranged in the direction of flow in front of the first channel section and which has a cylindrical cross section.
  • this fourth channel portion the medium to be sprayed can be introduced into the spray nozzle assembly. It is noteworthy that this channel portion is formed integrally with the one-piece molded plastic part. Thereby, the spray nozzle assembly can be designed so that when installed in a spray head, a smaller number of components is needed.
  • the narrow cross-sectional area has two further sections, which adjoin the two sections of the narrow cross-sectional area arranged laterally of the passage opening, and which are inclined with respect to the plane of the passage opening in the direction of the first channel section.
  • the precise shaping of the channel section which conducts the medium to the passage opening is of particular importance for the flow conditions of the medium and also for the resulting spray behavior. It has been shown that a particularly advantageous spray behavior is achieved by the mentioned embodiment of the narrow-sectioned area.
  • two webs protrude from the narrow cross-sectional area adjacent to the passage opening and project into the first channel section.
  • these webs extend in the direction of the side surfaces of the second channel section.
  • the spray nozzle assembly of polyoxymethylene (POM), polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polyamide (PA) and / or polypropylene (PP) is made.
  • POM polyoxymethylene
  • PBT polybutylene terephthalate
  • PET polyethylene terephthalate
  • PA polyamide
  • PP polypropylene
  • the Fig. 1 shows a spray nozzle arrangement according to the invention in a perspective view from above.
  • the spray nozzle arrangement with the nozzle channel running in the middle terminates in a flat, approximately rectangular outer surface 10 with two rounded sides and strongly rounded corners. Adjacent to the outer surface 10 extends an approximately parallelepiped block 12 and a cylindrical section 14.
  • a medium to be sprayed is passed through a first, non-visible channel section and through the passage opening 16.
  • Adjacent to the passage opening 16 is a second channel portion which is bounded by two side surfaces 18 which are opposite and with increasing distance from the passage opening from each other, and two approximately perpendicular to the plane of the passage opening 16 arranged boundary surfaces 20.
  • the two boundary surfaces 20 are arranged on the mantle of an imaginary cylinder whose longitudinal axis extends perpendicularly through the plane of the passage opening 16.
  • Adjacent to the second channel portion is a third channel portion bounded by two side surfaces 22 that merge seamlessly into each side surface 18 of the second channel portion and two boundary surfaces 24 that are approximately parallel to the boundary surfaces 20 of the second channel portion, however laterally spaced therefrom and offset outwards. Due to the described arrangement of the side and boundary surfaces of the nozzle channel widens in the region of the second and third channel portion starting from the passage opening 16 in the flow direction resistant.
  • the third channel section opens into the flat outer surface 10, so that the nozzle channel ends in total on this outer surface.
  • the two boundary surfaces 20 of the second channel section form a step between the second and third channel sections.
  • the side surfaces 22 of the third channel portion are substantially wider than its boundary surfaces 24, so that the third channel portion has an approximately rectangular, elongated cross-section.
  • the side surfaces 22 of the third channel section extend perpendicular to the longer edge of the flat outer surface 10.
  • FIG. 2 shows the spray nozzle assembly of Fig. 1 wherein the sectional plane extends along the longitudinal axis of the nozzle channel, ie centrally through the passage opening 16, and in the direction of the longer edge of the flat outer surface 10.
  • first channel section 26 In the flow direction below the passage opening 16 there is a first channel section 26.
  • This has two mutually facing side surfaces, one of which is visible by the reference numeral 28. Due to the two mutually facing side surfaces, the first channel section tapers up to a narrow cross-sectional area 36, of which in the Fig. 2 only the center line running along the longitudinal axis of the oblong narrow cross-sectional area is visible.
  • the narrow cross-sectional area extends on both sides of the passage opening 16 parallel to the outer surface 10. As far as the wall of the first channel portion 26 is not formed by the side surfaces 28, this is cylindrical.
  • a fourth channel section 38 is also provided with a cylindrical cross section.
  • This fourth channel section serves to introduce the medium to be sprayed and merges seamlessly into the first channel section.
  • FIG. 3 In the presentation of the Fig. 3 is the spray nozzle assembly of the FIGS. 1 and 2 shown in a further view, wherein the cutting plane also along the longitudinal axis of the spray nozzle assembly, but perpendicular to the in Fig. 2 used cutting plane runs.
  • the edges of the side surfaces 28 and of the side surfaces 18 facing the passage opening 16 are perpendicular to one another, so that the cross-sectional areas of the first and second passage sections which are approximately rectangular in the region of the passage opening form a cross.
  • This cruciform arrangement can also be seen in the Fig. 4 in which the spray nozzle arrangement is shown in a view from below, ie in the direction of the flowing medium. Particularly well recognizable in this view are the two sections of the narrow cross-sectional area 36 arranged on both sides of the passage opening 16.
  • the circle designated 40 indicates the inner circumference of the cylindrical fourth channel section 38.
  • Fig. 5 a further embodiment of the invention is shown, wherein the view and sectional plane approximately that of the Fig. 2 equivalent.
  • the second embodiment compensates for that Fig. 1
  • the narrow cross-sectional area 36 which is delimited by the two mutually converging side surfaces 28 of the first channel section, does not extend completely in one plane.
  • the Engquerterrorisms salt 36 on each side of the passage opening 16 has a first portion 42 which extends approximately in the plane of the passage opening 16 and parallel to the outer surface 10, and a second portion 44 which is adjacent to the first portion 42 and with respect to the plane of Passage opening 16 is inclined towards the first channel section 26.
  • each side of the passage opening 16 there is on each side of the passage opening 16 a web 46 projecting from a first section 42 of the narrow-cross-sectional surface 36, which protrudes into the first passage section.
  • Each web 46 extends in the direction of one of the two side surfaces 18 of the second channel section.
  • the second embodiment is in the Fig. 7 again shown schematically in a perspective view, with hidden lines are shown in dashed lines. In this view, one can see particularly clearly the two sections 42 and 44 of the narrow cross-sectional area 36 as well as the cross-section of the passage opening 16.

Landscapes

  • Nozzles (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Catching Or Destruction (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)

Claims (9)

  1. Agencement de buse de pulvérisation destiné à pulvériser un milieu, comportant un canal de buse qui présente
    - un premier segment de canal (26) qui se rétrécit, par deux surfaces latérales (28) dirigées l'une vers l'autre, jusqu'à une superficie de section étroite de forme allongée (36),
    - une ouverture de passage (16) disposée dans la superficie de section étroite (36) et dont la superficie de section est plus petite que la superficie de section étroite (36), et
    - un deuxième segment de canal adjacent à l'ouverture de passage (16) dans le sens de l'écoulement du milieu et qui présente deux surfaces latérales (18) en regard l'une de l'autre qui s'éloignent l'une de l'autre avec l'accroissement de la distance à l'ouverture de passage (16), les bords desdites surfaces latérales dirigés vers l'ouverture de passage (16) s'étendant transversalement à la direction longitudinale de la superficie de section étroite (36),
    - le canal de buse avec les deux segments de canal et l'ouverture de passage (16) étant réalisé en une pièce de matière plastique moulée d'un seul tenant,
    caractérisé en ce que
    - le deuxième segment de canal est limité entre ses deux surfaces latérales (18) par deux surfaces de limitation (20) disposées à peu près perpendiculairement au plan de l'ouverture de passage et qui se trouvent à une certaine distance latérale de l'ouverture de passage (16).
  2. Agencement de buse de pulvérisation selon la revendication 1, caractérisé en ce que les surfaces de limitation (20) sont disposées à peu près sur l'enveloppe d'un cylindre imaginaire dont l'axe longitudinal s'étend perpendiculairement au plan de l'ouverture de passage (16).
  3. Agencement de buse de pulvérisation selon la revendication 1 ou 2, caractérisé en ce que le canal de buse comprend un troisième segment de canal adjacent au deuxième segment de canal, lequel troisième segment présente deux surfaces latérales (22) qui s'étendent chacune dans le plan d'une des deux surfaces latérales (18) du deuxième segment de canal, et est limité par deux surfaces de limitation (24) disposées entre les deux surfaces latérales (22) du troisième segment de canal à peu près perpendiculairement au plan de l'ouverture de passage, lesquelles surfaces de limitation sont disposées à une distance latérale des surfaces de limitation (20) du deuxième segment de canal et plus éloignées de l'ouverture de passage (16) que ces dernières.
  4. Agencement de buse de pulvérisation selon l'une des revendications 1 à 3, caractérisé en ce que le canal de buse comprend un quatrième segment de canal (38) de section cylindrique, disposé en amont du premier segment de canal (26) dans le sens de l'écoulement et adjacent à ce segment.
  5. Agencement de buse de pulvérisation selon l'une des revendications 1 à 4, caractérisé en ce que la superficie de section étroite (36) présente, des deux côtés de l'ouverture de passage (16), un segment (42) disposé sensiblement dans le plan de l'ouverture de passage.
  6. Agencement de buse de pulvérisateur selon la revendication 5, caractérisé en ce que la superficie de section étroite présente deux autres segments (44) qui sont adjacents aux deux segments (42) de la superficie de section étroite (36) disposés latéralement à l'ouverture de passage, lesquels autres segments sont inclinés par rapport au plan de l'ouverture de passage (16) en direction du premier segment de canal (26).
  7. Agencement de buse de pulvérisation selon l'une des revendications 1 à 6, caractérisé en ce que deux nervures (46), saillant dans le premier segment de canal (28), partent de la superficie de section étroite (36) au niveau de la région adjacente à l'ouverture de passage (16).
  8. Agencement de buse de pulvérisation selon la revendication 7, caractérisé en ce que les nervures (46) s'étendent en direction de chaque surface latérale (18) du deuxième segment de canal.
  9. Agencement de buse de pulvérisation selon l'une des revendications 1 à 8, caractérisé en ce que l'agencement de buse de pulvérisation est fabriqué en polyoxyméthylène (POM), en polybutylène théréphtalate (PBT), en polyéthylène téréphtalate (PET), en polyamide (PA) et/ou en polypropylène (PP).
EP07014589A 2006-08-05 2007-07-25 Agencement de buse de pulvérisation Active EP1886731B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07014589T PL1886731T3 (pl) 2006-08-05 2007-07-25 Układ dyszy rozpylającej

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006036762A DE102006036762A1 (de) 2006-08-05 2006-08-05 Sprühdüsenanordnung

Publications (3)

Publication Number Publication Date
EP1886731A2 EP1886731A2 (fr) 2008-02-13
EP1886731A3 EP1886731A3 (fr) 2009-06-03
EP1886731B1 true EP1886731B1 (fr) 2012-01-11

Family

ID=38663008

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07014589A Active EP1886731B1 (fr) 2006-08-05 2007-07-25 Agencement de buse de pulvérisation

Country Status (8)

Country Link
US (1) US7648087B2 (fr)
EP (1) EP1886731B1 (fr)
AT (1) ATE540758T1 (fr)
CA (1) CA2595876C (fr)
DE (1) DE102006036762A1 (fr)
ES (1) ES2380583T3 (fr)
PL (1) PL1886731T3 (fr)
PT (1) PT1886731E (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015013414A1 (de) 2015-07-22 2017-01-26 Aptar Dortmund Gmbh Düsenanordnung und Abgabekopf

Families Citing this family (11)

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Publication number Priority date Publication date Assignee Title
AU2011294879B2 (en) * 2010-08-27 2014-08-28 Reckitt Benckiser Llc Improved foaming compositions and aerosol dispensers
GB201015499D0 (en) * 2010-09-16 2010-10-27 Reckitt Benckiser Inc Improved foaming compositions and aerosol dispensers
USD728067S1 (en) * 2012-10-31 2015-04-28 Talley Group Limited Spray device
USD745635S1 (en) * 2013-03-14 2015-12-15 J. Wagner Ag Spray gun nozzle
RU2623276C1 (ru) * 2015-03-06 2017-06-23 Виталий Иванович Титоров Устройство для распыления среды под давлением
US11141742B2 (en) 2016-11-16 2021-10-12 Dlhbowles, Inc. Cold weather low flow miniature spray nozzle assembly and method
JP1593089S (fr) * 2017-02-07 2017-12-18
USD832395S1 (en) * 2017-02-07 2018-10-30 Panasonic Intellectual Property Management Co., Ltd. Spraying nozzle
JP1613621S (fr) * 2017-09-06 2018-09-18
JP1613622S (fr) * 2017-09-06 2018-09-18
US20200054907A1 (en) 2018-08-14 2020-02-20 Kidde Technologies, Inc. Fire extinguishing agent nozzle structure

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US3647147A (en) * 1970-12-23 1972-03-07 Norton Co Spray nozzle orifice member
US4346849A (en) * 1976-07-19 1982-08-31 Nordson Corporation Airless spray nozzle and method of making it
DE2734950A1 (de) * 1977-08-03 1979-02-15 Agrotop Graef & Habich Gmbh Kunststoffduese
GB2047571A (en) * 1979-03-02 1980-12-03 Hall & Pickles Ltd A water spray nozzle
US5178325A (en) * 1991-06-25 1993-01-12 Union Carbide Chemicals & Plastics Technology Corporation Apparatus and methods for application of coatings with compressible fluids as diluent by spraying from an orifice
US5288027A (en) * 1992-07-17 1994-02-22 Nordson Corporation Dispensing method and apparatus including a ribbon nozzle for coating printed circuit boards
US5655255A (en) * 1995-07-06 1997-08-12 Bissell Inc. Water extractor and nozzle therefor
US5642860A (en) * 1995-07-07 1997-07-01 The Procter & Gamble Company Pump sprayer for viscous or solids laden liquids
US5676311A (en) * 1995-08-08 1997-10-14 Chesebrough-Pond's Usa Co., Division Of Conopco, Inc. Actuator for spray valve
US6261367B1 (en) * 1999-05-10 2001-07-17 Nordson Corporation Method and apparatus for dispensing liquid material
JP3647735B2 (ja) * 2000-09-26 2005-05-18 株式会社ミツバ ウォッシャ液噴射装置におけるノズル構造

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015013414A1 (de) 2015-07-22 2017-01-26 Aptar Dortmund Gmbh Düsenanordnung und Abgabekopf
WO2017012717A1 (fr) 2015-07-22 2017-01-26 Aptar Dortmund Gmbh Système de buse et tête de distribution

Also Published As

Publication number Publication date
PT1886731E (pt) 2012-04-11
ES2380583T3 (es) 2012-05-16
US7648087B2 (en) 2010-01-19
US20080029621A1 (en) 2008-02-07
PL1886731T3 (pl) 2012-07-31
EP1886731A3 (fr) 2009-06-03
CA2595876C (fr) 2013-03-12
ATE540758T1 (de) 2012-01-15
EP1886731A2 (fr) 2008-02-13
CA2595876A1 (fr) 2008-02-05
DE102006036762A1 (de) 2008-02-14

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