CH199855A - Spray nozzle for atomizing liquids, in particular liquid paints. - Google Patents

Spray nozzle for atomizing liquids, in particular liquid paints.

Info

Publication number
CH199855A
CH199855A CH199855DA CH199855A CH 199855 A CH199855 A CH 199855A CH 199855D A CH199855D A CH 199855DA CH 199855 A CH199855 A CH 199855A
Authority
CH
Switzerland
Prior art keywords
spray nozzle
plate
particular liquid
bulge
atomizing liquids
Prior art date
Application number
Other languages
German (de)
Inventor
Robert Bosch Gesellsch Haftung
Original Assignee
Bosch Gmbh Robert
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 Bosch Gmbh Robert filed Critical Bosch Gmbh Robert
Publication of CH199855A publication Critical patent/CH199855A/en

Links

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
    • 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
    • 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
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3006—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the controlling element being actuated by the pressure of the fluid to be sprayed
    • 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
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
    • 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
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
    • B05B1/3066—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice the valve element being at least partially hollow and liquid passing through it when the valve is opened

Landscapes

  • Nozzles (AREA)
  • Coating Apparatus (AREA)

Description

  

  Spritzdüse zum Zerstäuben von Flüssigkeiten, insbesondere     flüssigen        Farben.       Die Erfindung betrifft eine Spritzdüse  zum Zerstäuben von Flüssigkeiten, insbe  sondere flüssigen Farben, in flachem Strahl,  bei der die dem     Strahlquerschnitt    entspre  chende     Auslassöffnung    aus einem schmalen  Schlitz besteht, der in einer planparallelen  auswechselbaren Vorsatzplatte angeordnet ist.  



  Gemäss der Erfindung ist die Mitte der  Platte dünnwandiger als der Rest und in  diesem dünnwandigen Teil eine Ausbauchung  so angeordnet, dass sie innerhalb der paral  lelen Begrenzungsebenen der Vorsatzplatte  liegt und den Einschnitt trägt.  



  Düsen mit schmalen Schlitzen in Wand  ausbauchungen sind zwar zum luftlosen Aus  blasen von     Feuerlöscbmitteln    unter geringem  Druck bekannt. Dabei ist eine     kugelkappen-          förmige    Wandung am Grund von tiefen  Bechern vorgesehen; die auf die Druckleitung  aufgeschraubt sind. Diese Bauart ist jedoch  nicht an Geräten verwendbar, mit denen zum  Beispiel     flüssige    Farbe unter Drücken von    150 und mehr atü ausgespritzt wird, Denn  die dort erforderlichen Schlitze sind so klein,  dass es unmöglich ist, die sich dabei ergeben  den kleinen Becher noch genügend dicht zu  befestigen. Das fast allein verwendbare aus  wechselbare Element ist an solchen Geräten  die planparallele Vorsatzplatte.  



  In der Zeichnung ist ein Ausführungs  beispiel einer gemäss der Erfindung ausge  bildeten Spritzdüse dargestellt.  



       Fig.    1 zeigt einen     Achsschnitt    durch die  Spritzdüse in einer gegenüber der üblichen  stark vergrösserten     Darstellung;          Fig.    2 zeigt im selben Massstab die ent  gegen der Spritzrichtung gesehene Vorsatz  platte.  



  Im Düsenkörper 1 ist eine     Düsenverschluss-          nadel    3 geführt, welche bei geschlossener  Düse mit ihrem     kegeligen    Ende 3c auf einem  entsprechenden Bund 1a des Düsenkörpers  unter Federbelastung aufsitzt. Das Spritzgut  wird durch einen Mittelkanal     3a    der Düsen-      nadel und Abzweigkanäle     $b    in den Hohl  raum des Düsenkörpers eingedrückt und  lüftet beim Überschreiten eines der Feder  vorspannung entsprechenden Druckes die  Nadel 3 mit ihrer Sitzfläche 3c von der  Fläche     la    ab, so dass das Spritzgut austritt.  



  Auf die Stirnfläche des Düsenkörpers 1  ist eine planparallele Vorsatzplatte 4 mit  Hilfe einer     Überwurfmutter    2 festgespannt.  In dieser Vorsatzplatte ist die Mittelpartie  mit dünnerer Wandstärke ausgebildet als der  übrige Teil der Platte. Diese     dünnwandigere     Mittelpartie der Platte ist in Spritzrichtung  kugelig ausgebaucht (4a), was entweder  durch spanabhebende oder     spanlose    Form  gebung erreicht werden kann.  



  Quer durch diese kugelige Ausbauchung  4a ist mittels eines kreisförmigen schmalen  Sägeblattes ein Schnitt gelegt worden, der  in der Ausbauchung     4a    die rechteckige     Durch-          tritt8öffnung    4c freilegt. Bei 4b ist auch der  dickwandige Teil der Vorsatzplatte ange  schnitten, was aber ohne Bedeutung ist.



  Spray nozzle for atomizing liquids, in particular liquid paints. The invention relates to a spray nozzle for atomizing liquids, in particular special liquid colors, in a flat jet, in which the outlet opening corresponding to the jet cross-section consists of a narrow slot which is arranged in a plane-parallel replaceable attachment plate.



  According to the invention, the center of the plate is thinner-walled than the rest and in this thin-walled part a bulge is arranged in such a way that it lies within the parallel delimitation planes of the facing plate and carries the incision.



  Nozzles with narrow slots in wall bulges are known for airless blowing from Feuerlöscbmittel under low pressure. A spherical cap-shaped wall is provided at the bottom of deep cups; which are screwed onto the pressure line. However, this design cannot be used on devices with which, for example, liquid paint is sprayed out at pressures of 150 or more atmospheres, because the slots required there are so small that it is impossible to close the small cup sufficiently tightly attach. The replaceable element that can be used almost alone on such devices is the plane-parallel attachment plate.



  In the drawing, an embodiment example of a spray nozzle formed according to the invention is shown.



       1 shows an axial section through the spray nozzle in a representation that is greatly enlarged compared to the usual; Fig. 2 shows on the same scale the front plate seen ent against the spraying direction.



  In the nozzle body 1 there is a nozzle shut-off needle 3 which, when the nozzle is closed, rests with its conical end 3c on a corresponding collar 1a of the nozzle body under spring loading. The spray material is pressed into the cavity of the nozzle body through a central channel 3a of the nozzle needle and branch channels $ b and, when a pressure corresponding to the spring preload is exceeded, the needle 3 with its seat 3c is released from the surface la so that the spray material emerges .



  A plane-parallel attachment plate 4 is clamped onto the end face of the nozzle body 1 with the aid of a union nut 2. In this facing plate, the middle section is designed with a thinner wall thickness than the rest of the plate. This thinner-walled central part of the plate is bulged in the direction of spraying (4a), which can be achieved by either cutting or non-cutting shaping.



  A cut was made transversely through this spherical bulge 4a by means of a circular, narrow saw blade which exposes the rectangular passage opening 4c in the bulge 4a. At 4b, the thick-walled part of the facing plate is cut, but this is of no importance.

Claims (1)

PATENTANSPRUCH: Spritzdüse zum Zerstäuben von Flüssig. keiten, insbesondere flüssigen Farben, in flachem Strahl, bei der die dem Strahlquer- schnitt entsprechendeAuslassöffnung aus einem schmalen Schlitz besteht, der in einer aus wechselbaren planparallelen Vorsatzplatte an geordnet ist, dadurch gekennzeichnet, dass die Mitte der Platte dünnwandiger als der Rest ist und in diesem dünnwandigen Teil eine Ausbauchung so angeordnet ist, dass sie innerhalb der parallelen Begrenzungsebenen der Vorsatzplatte liegt und den Einschnitt trägt. <B>UNTERANSPRÜCHE:</B> 1. PATENT CLAIM: Spray nozzle for atomizing liquid. in a flat jet, in which the outlet opening corresponding to the jet cross-section consists of a narrow slot which is arranged in an interchangeable plane-parallel faceplate, characterized in that the center of the plate is thinner-walled than the rest and in This thin-walled part a bulge is arranged so that it lies within the parallel delimitation planes of the facing plate and carries the incision. <B> SUBClaims: </B> 1. Spritzdüse gemäss Patentanspruch, dadurch gekennzeichnet, dass die Ausbauchung kugelige Form hat. 2. Spritzdüse nach Patentanspruch und Unter anspruch 1, dadurch gekennzeichnet, dass der Einschnitt mittels einer Kreisblattsäge hergestellt ist. Spray nozzle according to patent claim, characterized in that the bulge has a spherical shape. 2. Spray nozzle according to claim and sub-claim 1, characterized in that the incision is made by means of a circular blade saw.
CH199855D 1936-10-13 1937-10-07 Spray nozzle for atomizing liquids, in particular liquid paints. CH199855A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0175824 1936-10-13

Publications (1)

Publication Number Publication Date
CH199855A true CH199855A (en) 1938-09-15

Family

ID=7007800

Family Applications (1)

Application Number Title Priority Date Filing Date
CH199855D CH199855A (en) 1936-10-13 1937-10-07 Spray nozzle for atomizing liquids, in particular liquid paints.

Country Status (4)

Country Link
CH (1) CH199855A (en)
DE (1) DE682511C (en)
FR (1) FR827772A (en)
GB (1) GB479677A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2621078A (en) * 1949-03-14 1952-12-09 Spraying Systems Co Spray nozzle tip
US3000576A (en) * 1960-03-01 1961-09-19 Spee Flo Company Spray gun
GB2135909B (en) * 1983-03-04 1986-09-03 Norman Horwood Spraying
JP3896653B2 (en) * 1997-10-08 2007-03-22 トヨタ自動車株式会社 Fuel injection valve for internal combustion engine
JP3505996B2 (en) * 1998-03-19 2004-03-15 トヨタ自動車株式会社 Fuel injection valve for internal combustion engine
JP3039510B2 (en) * 1998-03-26 2000-05-08 トヨタ自動車株式会社 Fuel injection valve for internal combustion engine
JP2976973B1 (en) * 1998-09-29 1999-11-10 トヨタ自動車株式会社 Fuel injection valve for internal combustion engine
US10471460B2 (en) * 2017-03-21 2019-11-12 The Boeing Company Dispensing units for controlling substance flow and related methods
US10343182B2 (en) * 2017-03-21 2019-07-09 The Boeing Company Dispensing units for controlling substance flow and related methods
BE1026649B1 (en) * 2018-09-24 2020-04-28 Iluvia Bvba IMPROVED FIRE HEAD AND EXTINGUISHING SYSTEM
CN112692048B (en) * 2020-12-09 2022-05-17 中国地质环境监测院 Contaminated soil treatment and remediation device and method
CN113457896B (en) * 2021-08-01 2022-12-16 江苏意可航空科技股份有限公司 Paint spraying machine for metal surface

Also Published As

Publication number Publication date
DE682511C (en) 1939-10-16
FR827772A (en) 1938-05-03
GB479677A (en) 1938-02-09

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