EP1938902A2 - Buse à plusieurs composants - Google Patents

Buse à plusieurs composants Download PDF

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Publication number
EP1938902A2
EP1938902A2 EP07022463A EP07022463A EP1938902A2 EP 1938902 A2 EP1938902 A2 EP 1938902A2 EP 07022463 A EP07022463 A EP 07022463A EP 07022463 A EP07022463 A EP 07022463A EP 1938902 A2 EP1938902 A2 EP 1938902A2
Authority
EP
European Patent Office
Prior art keywords
nozzle
plates
cover plates
outlet
exit
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
EP07022463A
Other languages
German (de)
English (en)
Other versions
EP1938902B1 (fr
EP1938902A3 (fr
Inventor
Thomas Piller
Ulrich Prof.Dr.-Ing. Gärtner
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.)
Piller Entgrattechnik GmbH
Original Assignee
Piller Entgrattechnik 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 Piller Entgrattechnik GmbH filed Critical Piller Entgrattechnik GmbH
Publication of EP1938902A2 publication Critical patent/EP1938902A2/fr
Publication of EP1938902A3 publication Critical patent/EP1938902A3/fr
Application granted granted Critical
Publication of EP1938902B1 publication Critical patent/EP1938902B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C5/00—Devices or accessories for generating abrasive blasts
    • B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
    • B24C5/04—Nozzles therefor
    • 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
    • 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
    • B05B1/08—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 of pulsating nature, e.g. delivering liquid in successive separate quantities ; Fluidic oscillators

Definitions

  • the invention relates to a nozzle having a plurality of components, which enclose a nozzle passage from a nozzle inlet to a nozzle exit and are fixedly connected to each other.
  • One-piece nozzles with a round nozzle passage are particularly difficult to manufacture if the nozzle opening and the nozzle outlet are to be particularly small. Manufacturing becomes even more difficult if the nozzle passage is to have conically tapered sections and a nozzle exit with undercuts or the like.
  • EP 1 323 479 A1 shows in order to facilitate the production of nozzles with an initial diameter of less than 5 mm and a nozzle exit of less than 2.5 mm.
  • This known nozzle consists of a nozzle body, in which in the region of the nozzle exit a nozzle insert is used with a nozzle bore.
  • the nozzle passage extends in the region of the nozzle outlet, so that the nozzle insert can be introduced into this extension.
  • the nozzle insert facing the nozzle passage of the nozzle main body has an extension which is flush with an extension of the nozzle passage in the nozzle body and forms an undercut in the overall nozzle passage, which is thus easily introduced into the two components of the nozzle can be assembled.
  • the two nozzle plates can be produced as simple components or the like, wherein the narrow passages forming the nozzle passage, in conjunction with the fixing between the two cover plates, bring about a possibility of variation for the nozzle passage, without making production more difficult. It only needs to be ensured that the two cover plates, the two nozzle plates in the area Cover the narrow passage defining the nozzle passage and complete the nozzle passage.
  • the thickness of the nozzle plates can be very small and is approximately between 1 mm and 2 mm, preferably between 1.2 mm and 1.8 mm, e.g. only 1.5 mm.
  • the nozzle passage is designed generally symmetrical to the longitudinal center axis of the same, can be provided for a further simplification that the two nozzle plates are identical and are rotated by 180 ° between the two cover plates are attached.
  • the assembly of the nozzle can be carried out according to one embodiment so that the nozzle plates and the cover plates are provided with aligned mounting holes and bolted together.
  • the cover plates on the sides facing the nozzle plates are provided with receiving grooves for sealing elements outside the narrow sides which determine the nozzle passage.
  • connection of the components can also be made so that the nozzle plates and the cover plates are peripherally welded outside the nozzle inlet and the nozzle exit firmly together.
  • connection of a supply line to the nozzle can be effected in a simple manner in that the nozzle inlet is designed as a threaded receptacle for a connecting line with threaded part, which is introduced into the fixedly interconnected unit of the nozzle plates and cover plates.
  • the nozzle passage is configured such that the nozzle entrance merges into a nozzle chamber extending dome-like into the inner sides of the adjacent cover plates, that adjoins the nozzle chamber, a nozzle channel, which tapers conically towards the nozzle exit and that the nozzle outlet by parts
  • the narrow side of the nozzle plates is limited, which are parallel to each other and have a small width of about 1 mm.
  • the nozzle outlet is designed in such a way that additional undercuts are made in the parts of the nozzle outlet which extend the nozzle outlet in regions, then an oscillating and impulsive jet is achieved, which has an improved effect, especially for cleaning types operating with liquid.
  • various parameters are possible for the undercuts which influence the oscillation frequency, the clock frequency of the pulses and the like.
  • the first possibility is given by the fact that in the parts of the nozzle outlet at a predetermined distance from the opening of the nozzle outlet certain undercuts are mounted, the centers are spaced from the parts and their radii are greater than the distances and in training may be provided in that, following the circular undercuts at a distance from the opening of the nozzle outlet, rectangular undercuts are made in the parts of the narrow sides of the nozzle plates, specifically with a certain width and a certain depth.
  • a nozzle with effective cleaning jet can be achieved if the undercuts are dimensioned as indicated in claim 12.
  • the core of the nozzle according to the invention are the two nozzle plates 10 and 10 ', which have a very small thickness of about 1.5 mm and between two cover plates 20 and 20' are fixed and held at a distance to each other, so that the narrow sides facing each other in limit the longitudinal direction of the nozzle passage, as the plan view of the nozzle of FIG. 1 and the longitudinal and transverse sections BB and AA of FIGS. 2 and 3 show.
  • the nozzle plates 10 and 10 ' can be produced individually, for example by punching or, as shown in FIG. 5, initially produced in the region of the nozzle entrance 40 as a single component. If the nozzle is composed of this nozzle plate according to FIG. 5 with the cover plates 20 and 20 ', the separation into the two nozzle plates 10 and 10' can be completed by subsequent introduction of the nozzle inlet 40 and the nozzle passage can be completed.
  • the nozzle to the longitudinal center axis of the nozzle passage is symmetrical, so that the two nozzle plates 10 and 10 'when they are manufactured individually, are identical and rotated only by 180 ° about the longitudinal center axis between the cover plates 20 and 20 'are attached and held.
  • the maintenance of the nozzle plates 10 and 10 'at the correct distance from one another is achieved in that, like the cover plates 20 and 20', they have mutually aligned fastening receivers 45 and 45 'and can be screwed to form a solid unit. If here too the symmetry to the longitudinal center axis of the nozzle passage is maintained, the cover plates 20 and 20 'can be formed identically.
  • connection of the nozzle plates 10 and 10 'with the two cover plates 20 and 20', according to a further embodiment thereby lead to a fixed unit (Fig. 4), that all components are the other side with the exception of the nozzle inlet 40 and the nozzle exit 30 welded together.
  • the mutually facing narrow sides of the nozzle plates 10 and 10 'with the cover plates 20 and 20' form the nozzle passage, which begins with the nozzle inlet 40, to which a nozzle chamber 16 connects, with the dome-like extensions 12 and 12 'and 13 and 13 'in the facing inner sides of the cover plates 20 and 20' extends, as shown in FIG. 2.
  • the nozzle passage passes to the nozzle chamber 16 in a nozzle channel 17, which then merges via a conically tapered portion 18 in the nozzle outlet 30.
  • the nozzle channel 17 is bounded laterally by the sections 14 and 14 'of the nozzle plates 10 and 10', while the sections 15 and 15 'define the conically tapering section 18 of the nozzle passage.
  • the only slightly spaced sections 31 and 31 'of the nozzle plates 10 and 10' form the nozzle outlet 30, the details of which are shown in Fig. 6.
  • the longitudinal section of FIG. 2 determine the between the cover plates 20 and 20 'fixed nozzle plates 10 and 10', the height of the nozzle passage between the nozzle chamber 16 and the entrance into the nozzle passage 30.
  • the nozzle inlet 40 is formed as a threaded receptacle into which a threaded portion of a connecting cable can be screwed.
  • connection line can be designed as a high-pressure line and supply the liquid with a correspondingly high pressure to the nozzle passage of the nozzle. Since the width of the nozzle exit 30 can easily be kept very small, by the distance b of the sections 31 and 31 'of the nozzle plates 10 and 10' in the region of the nozzle exit 30, a high efficiency of the discharged liquid jet is achieved in cleaning devices of all types ,
  • the new design of the nozzle has the potential to provide the nozzle exit 30 with undercuts 32 and 32 'and 33 and 33', as shown in Fig. 6 in an enlarged partial view.
  • the undercuts 32 and 32 ' are of circular design and are introduced at intervals c and c' from the opening of the nozzle exit 30 into the sections 31 and 31 'of the nozzle exit 30.
  • the centers of the radii r and r 'introduced undercuts 32 and 32' a distance a and a 'to the sections 31 and 31' of the nozzle exit 30, wherein the distances a and a 'are smaller than the radii r and r '.
  • the supplied liquid jet is set in vibration and interrupted again and again, so that the liquid jet discharged via the opening of the nozzle outlet carries out an oscillating back-and-forth movement and is thereby interrupted in a pulsed manner.
  • the cleaning effect is thereby further improved without requiring moving mechanical components.
  • the nozzle with 1.5 mm thick nozzle plates 10 and 10 'and a width B of the nozzle opening of 1 mm when the distances a and a' at 0.5 mm, the radii r and r 'with 0 , 7 mm, the distances d and d 'are chosen to be 1.5 mm, the widths e and e' and the depths f and f 1 mm.
  • the dimensional values are to be used as parameters to optimally adjust the beam angle, oscillation and pulse frequency of the dispensed liquid jet to the desired effect of the dispensed liquid jet, the number and shape of the undercuts in the nozzle exit 40 being used as further parameters for changing the liquid jet can.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
EP07022463.9A 2006-11-20 2007-11-20 Buse à plusieurs composants Not-in-force EP1938902B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006054507A DE102006054507B3 (de) 2006-11-20 2006-11-20 Düse mit mehreren Bauteilen

Publications (3)

Publication Number Publication Date
EP1938902A2 true EP1938902A2 (fr) 2008-07-02
EP1938902A3 EP1938902A3 (fr) 2008-11-05
EP1938902B1 EP1938902B1 (fr) 2017-07-19

Family

ID=38922410

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07022463.9A Not-in-force EP1938902B1 (fr) 2006-11-20 2007-11-20 Buse à plusieurs composants

Country Status (2)

Country Link
EP (1) EP1938902B1 (fr)
DE (1) DE102006054507B3 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4721251A (en) 1984-07-27 1988-01-26 Nippon Soken, Inc. Fluid dispersal device
EP1323479A1 (fr) 2001-12-20 2003-07-02 ALTO Deutschland GmbH Buse composée de deux pièces
JP2003275630A (ja) 2002-03-22 2003-09-30 National Institute Of Advanced Industrial & Technology 成膜装置及び成膜方法
US20050252539A1 (en) 2004-05-17 2005-11-17 Asmo Co., Ltd. Vehicular washer nozzle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2039938A (en) * 1935-12-23 1936-05-05 Frederick W Schultz Sandblast nozzle
US5283990A (en) * 1992-11-20 1994-02-08 Church & Dwight Co., Inc. Blast nozzle with inlet flow straightener
US5749525A (en) * 1996-04-19 1998-05-12 Bowles Fluidics Corporation Fluidic washer systems for vehicles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4721251A (en) 1984-07-27 1988-01-26 Nippon Soken, Inc. Fluid dispersal device
EP1323479A1 (fr) 2001-12-20 2003-07-02 ALTO Deutschland GmbH Buse composée de deux pièces
JP2003275630A (ja) 2002-03-22 2003-09-30 National Institute Of Advanced Industrial & Technology 成膜装置及び成膜方法
US20050252539A1 (en) 2004-05-17 2005-11-17 Asmo Co., Ltd. Vehicular washer nozzle

Also Published As

Publication number Publication date
DE102006054507B3 (de) 2008-02-14
EP1938902B1 (fr) 2017-07-19
EP1938902A3 (fr) 2008-11-05

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