EP0089031B1 - Mündungsventil für einen Ultraschall-Flüssigkeitszerstäuber - Google Patents

Mündungsventil für einen Ultraschall-Flüssigkeitszerstäuber Download PDF

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Publication number
EP0089031B1
EP0089031B1 EP83102427A EP83102427A EP0089031B1 EP 0089031 B1 EP0089031 B1 EP 0089031B1 EP 83102427 A EP83102427 A EP 83102427A EP 83102427 A EP83102427 A EP 83102427A EP 0089031 B1 EP0089031 B1 EP 0089031B1
Authority
EP
European Patent Office
Prior art keywords
atomiser
liquid
plate
stem
orifice valve
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.)
Expired
Application number
EP83102427A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0089031A1 (de
Inventor
Gerhard Eith
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP0089031A1 publication Critical patent/EP0089031A1/de
Application granted granted Critical
Publication of EP0089031B1 publication Critical patent/EP0089031B1/de
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
    • B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
    • B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
    • B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
    • B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
    • B05B17/0623—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers coupled with a vibrating horn
    • B05B17/063—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers coupled with a vibrating horn having an internal channel for supplying the liquid or other fluent material
    • 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
    • B05B1/3073—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 deflector acting as a valve in co-operation with 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
    • B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
    • B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
    • B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
    • B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
    • B05B17/0623—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers coupled with a vibrating horn

Definitions

  • the present invention relates to a muzzle valve for an ultrasonic liquid atomizer, as specified in the preamble of claim 1.
  • an ultrasonic coupling vibrator which has an impact body for the liquid emerging from the ultrasonic coupling vibrator.
  • This impact body is a bracket attached to the transducer, a portion of which is located in front of the mouth of the coupling transducer. This portion is fixed and is used to form a small gap in front of the mouth of the coupling transducer and to maintain it with a constant gap width.
  • DE-A-3 036 721 which was only published after the priority date of the present invention, describes a liquid atomizer which has an ultrasonic vibrator with an atomizer plate, with an axial bore for the liquid supply to the surface of the atomizer plate and with has an impact body for deflecting and distributing the supplied liquid on the atomizer plate, the impact body having a stem which is located in the axial bore of the vibrator and the atomizer plate, and which is at least in that area of the axial bore which is close to the outlet opening of the Bore is located, has a centering in this bore, and wherein the stem of the impact body continues in a holding wire which is attached to the atomizer plate opposite the vibrator.
  • the stem preferably has a shape with more than 2 edges and it is in particular star-shaped, which means that the stem is centered in the bore.
  • the head of the impact body is preferably mushroom-shaped with a convex outer surface and its (lower) surface facing the surface of the atomizer plate has an outer edge which has a larger (radial) dimension than the corresponding dimension (radius) of the bore in the atomizer plate.
  • a spray device is known from US Pat. No. 3,958,760, but it does not have any vibrating system. It has an automatically closing closure for the liquid outlet opening of the arrangement.
  • This closure is a lid attached to a stem, the stem extending through the liquid supply bore and having a thickening at its opposite end.
  • This closure works with the help of gravity and is therefore dependent on the position. In the absence of fluid supply and vertical installation, the head of this closure rests on the edge of the opening and closes it as long as this vertical position is maintained.
  • the thickening mentioned at the other end of this closure serves to ensure that this closure is not lost when the position changes.
  • the present invention is based on the knowledge gained on the basis of practical tests with a known atomizer that the impact body, which is extremely advantageous per se for atomization, preferably allows undesired crusting and / or sticking to occur and / or prevents partial incrustation or partial incrustation Gluing the outlet opening when starting up again, ie renewed hydration, is eliminated by itself. It is believed that this is related to the otherwise very advantageous fluid deflection under the impact body and the presence of the stem and centering in the bore.
  • the orifice valve realized with the baffle plate head is designed in such a way that it has a sealing disk or a sealing cone on the back of the head which closes the valve seat on or in the opening of the central bore of the ultrasonic oscillator.
  • the retaining wire provided for the baffle plate is held axially displaceably at its opposite end, so that the baffle plate with its lower surface or edge facing the atomizer surface can be pulled against this surface of the atomizer plate.
  • this end of the retaining wire on which the train for closing the muzzle valve is exerted is held in an end piece, which is connected to the pipe socket 7 of the liquid atomizer, preferably via a hose piece, which has sufficient elasticity for axial relative movement between the atomizer and the end piece, this relative movement corresponding to the opening stroke required for the muzzle valve.
  • the figure shows a partially broken sectional view. 1 with the ultrasonic liquid atomizer is designated with its conically shaped oscillator 3 and its worktop 4 and the transducer 2 made of piezoceramic material and fixed thereon.
  • 5 indicates the axial bore in the oscillator 3, in which the stem 12 of the baffle plate designed as a mushroom head 11 is located.
  • the handle 12 is displaceable in the axial direction in the bore 5 and has, for example, a triangular cross section for the purpose of centering. 1 is such that the edge denoted by 12 'abuts the inner wall of the bore 5.
  • Sufficient free cross-sectional area remains along the stem 12 for the flow of the liquid to be atomized, designated 15, which is to be brought onto the surface 4 ′ of the atomizer plate 4. 6 at the outlet opening of the bore 5 of the vibrator 3 is indicated.
  • a sealing washer 61 is provided on the underside of the mushroom-shaped head 11.
  • the distance between the underside of the sealing disk 61 and the surface 4 'of the plate 4, designated 13' can be reduced to zero, i.e. close the muzzle valve.
  • the head 11 is brought into the position shown in the figure with a corresponding distance 13 ', which directs the liquid 15 onto the surface 4' of the atomizer plate which is not covered by the head 11 4 arrives.
  • the vibrator 3 and thus the liquid atomizer 1 is connected to a holder 70, which is installed in a manner not shown in a respective device in which the liquid atomizer 1 is located.
  • the tube 17 is slidably guided in the holder 70, as shown, and can be moved in the direction of the arrows 13, for which purpose, for example, corresponding force acts on the flange 18, which is fixedly connected to the tube 17.
  • This movement 13 is the same as that already discussed above in connection with the description of the atomizer 1.
  • an elastic hose made of, for example, a plastic material is designated, which permits the length change corresponding to the movement 13 or the stroke 13 '.
  • a holding wire 12 ′′ extends away from the lower end of the centered stem 12 of the head 11. It is located both at the end of the stem 12 and at a location on the tube 17 During the train 13 corresponding relative movement between the pipe 17 and the pipe socket 7, the stem 12 and thus the head 11 is pulled down against the surface 4 'of the atomizer plate 4, in such a way that the above-mentioned sealing of the outlet valve takes place .
  • the kinematics in connection with train has been described above. Since or insofar as the holding wire 12 'has a corresponding stiffness, the kinematics can also be operated with a force opposite the arrow 13. The muzzle valve is then closed in the idle state and is opened accordingly by this force.
  • the number 20 indicates springs that are tension or compression springs depending on the selected kinematics.
  • the ring 21, which is firmly connected to the tube 17, indicates a stop which defines the maximum opening width 13 '.

Landscapes

  • Special Spraying Apparatus (AREA)
EP83102427A 1982-03-12 1983-03-11 Mündungsventil für einen Ultraschall-Flüssigkeitszerstäuber Expired EP0089031B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823209139 DE3209139A1 (de) 1982-03-12 1982-03-12 Muendungsventil fuer einen ultraschall-fluessigkeitszerstaeuber
DE3209139 1982-03-12

Publications (2)

Publication Number Publication Date
EP0089031A1 EP0089031A1 (de) 1983-09-21
EP0089031B1 true EP0089031B1 (de) 1986-01-29

Family

ID=6158128

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83102427A Expired EP0089031B1 (de) 1982-03-12 1983-03-11 Mündungsventil für einen Ultraschall-Flüssigkeitszerstäuber

Country Status (4)

Country Link
US (1) US4537354A (enrdf_load_stackoverflow)
EP (1) EP0089031B1 (enrdf_load_stackoverflow)
JP (1) JPS58166955A (enrdf_load_stackoverflow)
DE (2) DE3209139A1 (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5025766A (en) * 1987-08-24 1991-06-25 Hitachi, Ltd. Fuel injection valve and fuel supply system equipped therewith for internal combustion engines
EP0876223B1 (de) * 1996-01-23 2000-04-26 Koenig & Bauer Aktiengesellschaft Verfahren und einrichtung zum sauberhalten von düsenmundstücken an düsen eines sprühfeuchtwerkes einer rotationsdruckmaschine
US6752327B2 (en) * 2002-10-16 2004-06-22 S. C. Johnson & Son, Inc. Atomizer with tilted orifice plate and replacement reservoir for same
ATE408460T1 (de) * 2003-08-01 2008-10-15 Lechler Gmbh Düse zum besprühen einer fläche
EP1510261A1 (en) * 2003-08-28 2005-03-02 Microflow Engineering SA Liquid droplet spray device having a hydrodynamic valve
CA2765882C (en) * 2008-06-17 2017-04-11 Davicon Corporation Liquid dispensing apparatus using a passive liquid metering method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2112984A1 (de) * 1971-03-17 1972-09-21 Daimler Benz Ag Ultraschall-Koppelschwinger
US3958760A (en) * 1974-10-23 1976-05-25 Peretz Rosenberg Spray nozzle

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2695069A (en) * 1951-02-07 1954-11-23 Nat Foam System Inc Fire extinguishing foam tube
US2855244A (en) * 1955-06-03 1958-10-07 Bendix Aviat Corp Sonic liquid-spraying and atomizing apparatus
US2966311A (en) * 1958-07-24 1960-12-27 Harold G Davis Adjustable shower attachment
DE2029207A1 (de) * 1970-06-13 1971-12-16 Daimler Benz Ag Ultraschall Koppelschwinger
DE2308584C3 (de) * 1970-06-30 1980-02-28 Siemens Ag, 1000 Berlin Und 8000 Muenchen Piezoelektrisches Schwingsystem fur Flüssigkeitszerstäubung
GB1382828A (en) * 1971-04-02 1975-02-05 Plessey Co Ltd Liquidspraying devices having a nozzle subjected to high-frequency vibrations
DE3010985A1 (de) * 1980-03-21 1981-10-01 Siemens AG, 1000 Berlin und 8000 München Kraftstoff-einspritzduese mit zusaetzlicher kraftstoff-zerstaeubung
DE3036721C2 (de) * 1980-09-29 1983-09-01 Siemens AG, 1000 Berlin und 8000 München Ultraschall-Flüssigkeitszerstäuber

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2112984A1 (de) * 1971-03-17 1972-09-21 Daimler Benz Ag Ultraschall-Koppelschwinger
US3958760A (en) * 1974-10-23 1976-05-25 Peretz Rosenberg Spray nozzle

Also Published As

Publication number Publication date
EP0089031A1 (de) 1983-09-21
JPH0369580B2 (enrdf_load_stackoverflow) 1991-11-01
DE3209139A1 (de) 1983-09-15
JPS58166955A (ja) 1983-10-03
DE3361952D1 (en) 1986-03-13
US4537354A (en) 1985-08-27

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