EP1314481A2 - Buse de pulvérisation de liquides - Google Patents

Buse de pulvérisation de liquides Download PDF

Info

Publication number
EP1314481A2
EP1314481A2 EP02021401A EP02021401A EP1314481A2 EP 1314481 A2 EP1314481 A2 EP 1314481A2 EP 02021401 A EP02021401 A EP 02021401A EP 02021401 A EP02021401 A EP 02021401A EP 1314481 A2 EP1314481 A2 EP 1314481A2
Authority
EP
European Patent Office
Prior art keywords
nozzle
air
liquid
jet
spray pattern
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.)
Withdrawn
Application number
EP02021401A
Other languages
German (de)
English (en)
Other versions
EP1314481A3 (fr
Inventor
Manfred Pilz
Bernd Leiminger
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.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche AG
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 Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Publication of EP1314481A2 publication Critical patent/EP1314481A2/fr
Publication of EP1314481A3 publication Critical patent/EP1314481A3/fr
Withdrawn legal-status Critical Current

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
    • 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
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0807—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
    • B05B7/0815—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter
    • 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
    • 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
    • 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
    • B05B7/06—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane
    • B05B7/062—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet
    • B05B7/066—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet with an inner liquid outlet surrounded by at least one annular gas outlet
    • 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
    • B05B7/24—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 with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/26—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device
    • B05B7/262—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device a liquid and a gas being brought together before entering the discharge device
    • B05B7/267—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device a liquid and a gas being brought together before entering the discharge device the liquid and the gas being both under pressure

Definitions

  • the invention relates to a nozzle unit for atomizing liquids, with a liquid nozzle an air nozzle is combined.
  • a nozzle with an external nozzle in a nozzle set to combine a conical spray pattern with a nozzle with a flat spray pattern.
  • the air jet generated by the air nozzle does not serve to fan out the air jet Liquid jet generated liquid jet, but the air jet envelops the liquid jet and holds it together so that excessive fanning out of the liquid jet is avoided.
  • a liquid nozzle with a flat or disc-shaped spray pattern Combine air nozzle with a conical spray pattern in one nozzle unit.
  • the spray pattern can be adjusted in many ways. Without an air jet, a flat or disc-shaped spray pattern results, which can be achieved by lifting the Air pressure to a conical spray pattern, can be changed. By lifting the Pressure for air and liquid can extend the range of the jet at substantially the same Spray pattern can be changed.
  • the air nozzle in such a way that that a partially conical air jet (more precisely: two cone segments facing each other) is formed.
  • the liquid nozzle is oriented in such a way that the transverse extension (i.e. the extension along the larger axis) of the liquid jet comes to rest in the center of the cone segments.
  • a liquid nozzle with a conical one Combine spray pattern and an air nozzle with a flat spray pattern in one nozzle unit By Variations in fluid pressure and air pressure can cause the spray pattern to be circular Spray pattern without air jet by raising the air pressure towards a disc-shaped spray pattern, which too ends tapered, changed. Again, by simultaneously lifting the Press the range of the jet for air and liquid with the spray pattern remaining essentially the same increase.
  • the air nozzle in the To perform such that in the mouth region of the liquid nozzle two rows from each other opposite individual nozzles are provided for air.
  • Both versions have the advantage that in addition to a disc-shaped or flat spray pattern, which is tapered towards the ends and therefore through for the application of an even layer overlapping paths is particularly suitable, without changing the nozzle unit, a circular one Spray pattern can be generated, which is for difficult path courses, but especially for changes of direction in the Path course is particularly suitable.
  • the spray pattern is adjustable in many ways. So by simultaneous lifting of air and liquid pressure the range of the jet can be increased while, for example the spray pattern is changed by raising the air pressure while maintaining the liquid pressure.
  • the nozzle unit according to the invention for coating a Vehicle body, for example for seam sealing with a spray robot.
  • Seam sealing is used to seal joints and welds of a vehicle body Adhesive sheet applied.
  • This adhesive web should be as flat and homogeneous as possible on the Rest vehicle body.
  • the spraying robot can due to its external dimensions as well as its Movement geometry does not optimally approach all areas of the vehicle body. Take the example Inside of wheel arches of the vehicle body called.
  • the spray unit can now be adjusted so that the width of the adhesive web can then be adjusted varies little if the distances of the nozzle unit from the vehicle body vary.
  • the nozzle unit 1 shown in Fig. 1 consists of a liquid nozzle 2 and an air nozzle 3. Via a provided in the liquid nozzle 2 central channel 4 is pressurized liquid in one Liquid flow supplied, which is set in rotation by a vertebral body 5.
  • the air nozzle 3 surrounds the liquid nozzle 2, the between the liquid nozzle 2 and an outer wall 7 Air nozzle 3, an annular channel 6 is formed. Through openings 8, which are arranged at the ends of the air nozzle 3, An air jet 10 leaves the air nozzle 3.
  • the liquid flow passes through the liquid nozzle 2 Opening 9 and creates a liquid jet 11.
  • Fig. 2 shows the nozzle unit 1 in the front view.
  • the openings 8 of the air nozzle 3 are in two each other opposite rows 12 arranged.
  • Fig. 3 shows schematically the supply of the nozzle unit 1 with air and liquid.
  • the liquid nozzle 2 has flowed to a supply line 13 for liquid, via which a pump 14 from a Storage container 15 conveys the liquid as liquid flow into the liquid nozzle 2.
  • a second Pump 16 draws in ambient air and guides it as an air stream via a second supply line 17 the air nozzle 3 too.
  • the two pumps 14, 16 are controlled separately, so that the pressure in the Have the liquid flow and the pressure in the air flow set separately.
  • FIG. 4 shows different spray patterns in the plane A - A according to FIG. 1 depending on the ratio of the pressure in liquid flow and to pressure in air flow.
  • FIG. 4b shows the spray pattern when the air nozzle 3 is now activated. Now additionally through the openings 8 generates an air jet 10 which changes the spray pattern in such a way that the circular spray pattern follows Fig. 4a is flattened and a disk-shaped spray pattern with tapered ends 18 is formed. The Total width b of the liquid jet 11 increases.
  • FIG. 4c shows the spray pattern when the pressure in the air stream has been increased further.
  • the pressure in Liquid flow has remained unchanged.
  • the width d of the liquid jet 11 is wider increased while a depth h of the liquid jet 11 has decreased.
  • FIG. 4d finally shows the spray pattern if, on the basis of the relationships on which FIG. 4b is based, both the pressure in the liquid flow and the pressure in the air flow have been increased.
  • the spray pattern has become larger overall, d. H. with a shape of the spray pattern that corresponds to the shape according to FIG. 4b is comparable, the width and the depth h of the liquid jet 11 have increased.
  • Fig. 5 shows a front view of an alternative embodiment of the nozzle unit 1.
  • the opening 9 'of Liquid nozzle 2 is designed such that a liquid jet 11 with a flat spray pattern (shown in dashed lines).
  • the openings 8 are opposed in pairs arranged.
  • the angle W between two adjacent openings 8 is 60 ° in the exemplary embodiment.
  • the air jet 10 thus takes the form of two cone segments (shown in broken lines).
  • the openings 8 are drilled radially and aligned with the central axis M (see FIG. 1) of the nozzle unit 1 in such a way that Meet the axes of the openings 8 a few centimeters above the opening 9 '.
  • the opening 9 'of Liquid nozzle 2 is oriented so that the ends 18 of the liquid jet 11 between two adjacent openings 8 come to rest.

Landscapes

  • Nozzles (AREA)
EP02021401A 2001-11-22 2002-09-25 Buse de pulvérisation de liquides Withdrawn EP1314481A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10157372 2001-11-22
DE2001157372 DE10157372A1 (de) 2001-11-22 2001-11-22 Düseneinheit zum Zerstäuben von Flüssigkeiten

Publications (2)

Publication Number Publication Date
EP1314481A2 true EP1314481A2 (fr) 2003-05-28
EP1314481A3 EP1314481A3 (fr) 2005-06-15

Family

ID=7706630

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02021401A Withdrawn EP1314481A3 (fr) 2001-11-22 2002-09-25 Buse de pulvérisation de liquides

Country Status (2)

Country Link
EP (1) EP1314481A3 (fr)
DE (1) DE10157372A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005016548A1 (fr) * 2003-08-13 2005-02-24 Unilever Plc Buse pour dispositif de pulverisation
US7191959B2 (en) 2003-08-13 2007-03-20 Unilever Home & Personal Care Usa Division Of Conopco, Inc. Domestic spray device
CN110065150A (zh) * 2019-05-24 2019-07-30 刘文斌 一种用于陶瓷表面增效的施色装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2511356A (en) * 1946-05-24 1950-06-13 American Brake Shoe Co Spray gun nozzle
US2610092A (en) * 1950-10-26 1952-09-09 Spray Engineering Co Spray discharge nozzle
US4854504A (en) * 1983-11-04 1989-08-08 Graves Spray Supply Co., Inc. Fiberglass spray nozzle
JP2769962B2 (ja) * 1993-04-21 1998-06-25 アロイ工器株式会社 塗装に適する空気添加型噴霧装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005016548A1 (fr) * 2003-08-13 2005-02-24 Unilever Plc Buse pour dispositif de pulverisation
US7191959B2 (en) 2003-08-13 2007-03-20 Unilever Home & Personal Care Usa Division Of Conopco, Inc. Domestic spray device
US7232080B2 (en) 2003-08-13 2007-06-19 Unilever Home & Personal Care Usa Division Of Conopco, Inc. Nozzle for a spray device
CN110065150A (zh) * 2019-05-24 2019-07-30 刘文斌 一种用于陶瓷表面增效的施色装置

Also Published As

Publication number Publication date
DE10157372A1 (de) 2003-06-26
EP1314481A3 (fr) 2005-06-15

Similar Documents

Publication Publication Date Title
DE69420186T3 (de) Vernebler
DE69122988T2 (de) Niederdruck-Spritzpistole
EP1046426B1 (fr) Buse de pulvérisation haute pression
EP2121197B1 (fr) Bague de guidage d'air
DE60116287T2 (de) Düsenanordnung mit mitteln zur steuerung der tropfengrösse
DE2711448A1 (de) Sprenger
DE3501145A1 (de) Stroemungsverstaerkende fluessigkeitszerstaeubungsduese
DE3246664A1 (de) Spritzpistole mit einer duese fuer eine hydrostatische fluidspitze
DE3116660A1 (de) "luftzerstaeuber-spruehduese"
DE102018133067A1 (de) Sprühdüse und Verfahren
DE1063989B (de) Drallduese
DE10059406A1 (de) Spritzvorrichtung
EP1097812A2 (fr) Dispositif et procédé de mouillage d'un composant dans une machine d'impression
CH641062A5 (de) Zerstaeuberkopf an einer farbspritzpistole.
DE2736314C3 (de) Düse zum Versprühen eines unter Druck stehenden Mediums
DE19931890A1 (de) Düsenkörper für eine Kraftstoffeinspritzdüse mit optimierter Spritzlochkanalgeometrie
DE2700028A1 (de) Vollkegel-spritzduese
DE69622733T2 (de) Landwirtschaftliche und andere sprühsysteme
DE69621027T2 (de) Anordnung in einem munstück eines sprührohrens
WO2002074446A1 (fr) Buse melangeuse externe
EP1314481A2 (fr) Buse de pulvérisation de liquides
DE4133973C2 (de) Vorrichtung zum Versprühen eines Flüssigkeitsstrahls mit rotierender Achse auf einer konischen Fläche
DE3137109A1 (de) Verfahren und vorrichtung zum befeuchten von schuettgut
WO2018184636A2 (fr) Jeu de buses pour un pistolet pulvérisateur, système de pistolet pulvérisateur, procédé de réalisation d'un module de buses, procédé de sélection d'un module de buses d'un jeu de buses pour un travail de peinture, système de sélection et produit-programme informatique
DE2829172C2 (de) Kühlvorrichtung für Gegenstände aus Stahl

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

18W Application withdrawn

Effective date: 20050514