EP1560663B1 - Systeme de pulverisation a ondes stationnaires ultrasonores - Google Patents

Systeme de pulverisation a ondes stationnaires ultrasonores Download PDF

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Publication number
EP1560663B1
EP1560663B1 EP03811742A EP03811742A EP1560663B1 EP 1560663 B1 EP1560663 B1 EP 1560663B1 EP 03811742 A EP03811742 A EP 03811742A EP 03811742 A EP03811742 A EP 03811742A EP 1560663 B1 EP1560663 B1 EP 1560663B1
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EP
European Patent Office
Prior art keywords
paint
ultrasonic
standing
sound
pipe
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 - Fee Related
Application number
EP03811742A
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German (de)
English (en)
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EP1560663A1 (fr
Inventor
Uwe GÖRGES
Gert Stauch
Björn MATTHIAS
Gunter BÖRNER
Hidetoshi Yamabe
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ABB Patent GmbH
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ABB Patent GmbH
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Publication date
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Publication of EP1560663A1 publication Critical patent/EP1560663A1/fr
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Publication of EP1560663B1 publication Critical patent/EP1560663B1/fr
Anticipated expiration legal-status Critical
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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • 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 invention relates to an ultrasonic standing wave atomizer for generating a paint spray for painting a workpiece with a sonotrode, with a sonotrode the oppositely arranged component, wherein in case of operation in the space between the sonotrode and component a standing ultrasonic field is formed, and with a paint supply device , by means of the paint in the vicinity of a maximum of the sound velocity of the ultrasonic field can be fed.
  • the generally known high-speed rotary atomizers are currently preferably used.
  • the paint is passed through the interior of a metal bell and thus reaches its front side facing the workpiece.
  • the metal bell is usually driven by a compressed air turbine and rotates at up to 80,000 revolutions per minute.
  • centrifugal forces the paint then passes to the bell edge of the front page to tear down there in fine droplets.
  • the droplet size of the paint spray required for a sufficient quality of a lacquer layer is in the range of 10 ⁇ m to 60 ⁇ m.
  • paint can also be produced by means of an ultrasonic standing wave sputtering, for example according to the document U.S. 4,981,425 in principle can be atomized. Following these general considerations, however, average droplet sizes were measured in the atomization between 100 .mu.m and 200 .mu.m, even larger droplets occurring in individual cases. However, such large drops affect the quality of the paint layer so negative that an application in painting technology is unattractive.
  • an ultrasonic standing wave atomizer assembly for generating a paint spray for painting a workpiece may be configured to achieve smaller droplet sizes.
  • certain embodiments of the sonotrode and of the component, blocking elements or laminar rings have become known which improve the quality of the paint spray mist produced and thus comparatively small droplet sizes can be achieved.
  • the disadvantage here is that only comparatively small flow rates of paint can be atomized by the known arrangement.
  • the ultrasonic standing wave atomizer arrangement according to the invention of the type mentioned has a paint supply device which has at least two pipe sections for the application of paint in the region of the stationary ultrasonic field.
  • at least two of the pipe sections are arranged in the region of a selected maximum of the sound velocity of the stationary ultrasonic field.
  • this maximum is particularly stable, with a comparatively high speed of sound.
  • This particularly good sputtering properties of the selected maximum is inventively to increase the amount of paint to be atomized or the Lack twist straines used by the paint supply device and provided that at least two pipe pieces are arranged for the application of paint in the range of the selected maximum.
  • the amount of paint to be atomized can advantageously be increased.
  • An advantageous embodiment of the ultrasonic standing wave atomizer arrangement according to the invention is achieved when the component is a further sonotrode. In this way, the sputtering ability of the standing ultrasonic field can be increased. In addition, such a more stable ultrasonic field can be formed.
  • a further advantageous embodiment of the subject invention provides that the distance of the pipe sections in the region of the selected maximum to each other is so large that separate paint fins are formed for each piece of pipe.
  • a Lacklamelle forms from the paint exit point on the pipe sections from vibrational physical reasons in any case. If the distance between the pipe sections chosen so large that the paint fins can form separate from each other without mutual interference, at least one area is avoided in which meet droplets of different paint fins and can recombine in such a way to larger droplets. The quality of the paint spray mist is improved with the proposed arrangement.
  • the paint outlet openings of the at least two pipe sections in the range of the selected maximum of the sound velocity of a standing ultrasonic wave are arranged on a straight line, and when the straight line is perpendicular to an imaginary center line through the surface centers of the opposing sound surfaces is particularly advantageous the sonotrode and the component goes.
  • the distance between the paint exit points on the pipe sections and the sonotrode or the component will be approximately equal in each case. A particularly advantageous position seen in the X direction in the range of the maximum speed of sound is reached.
  • the aforementioned advantage can also be achieved if three pipe sections are arranged in the region of a selected maximum of the sound velocity of a standing ultrasonic wave, and if these pipe sections or their paint outlet openings are arranged in a triangle. Particularly favorable is a Arrangement in an equilateral triangle. A further improvement is when the surface defined by the triangle is perpendicular to an imaginary center line passing through the centroids of the opposing sound surfaces of the sonotrode and the device. Also in this case, in turn, it is achieved that the paint outlet openings in the X direction are located in the region of the maximum of the sound velocity.
  • the sputtering rate can be improved by selecting the particular maximum to be closer to the sonotrode than to the device. Then there is the possibility that the so-called Kapilarwellenstäubungs free, that is the one effect that keeps the paint droplets away from it by the vibrations of the sonotrode and thus supports the sputtering process.
  • FIG. 1 shows a first ultrasonic standing wave atomizer arrangement 10 according to the invention in an isometric view.
  • the coordinates are indicated by the directional arrows for the X, Y and Z directions in a Cartesian coordinate system.
  • the representation should have only sketchy character, so that the actual size ratios of this figure can not be removed.
  • a first sonotrode 12 is arranged opposite a first reflection body 14.
  • the sonotrode 12 is sketchily represented by a cylindrical base body 16 and a sound body 18, which protrudes from the first reflection body 14 facing end face of the cylindrical base body 16.
  • the sound body 18 and the base body 16 have an approximately cylindrical shape.
  • the opposite end surfaces of the sound body 18 and the first reflection body 14 are to be referred to as the first sound surface 20 for the end face on the sound body 18 and as a second sound surface 22 for the end face on the first reflection body 14.
  • the first 20 and the second sound surface 22 are configured konkarv, that is, that their shape corresponds approximately to a portion of the surface of an imaginary hollow sphere.
  • a first dotted line 24 and a second dotted line 26 were drawn on the first sound surface 20.
  • the point of intersection between the first 24 and the second line 26 lies exactly in the middle of the first sound surface 20.
  • the first 24 and the second line 26 corresponding lines are also shown on the second sound surface 22, but without being provided with reference numerals closer.
  • a central axis 28 is shown, which runs exactly in the X coordinate direction.
  • a first 30, a second 31 and a third pipe section 32 are shown, the free ends of which are arranged exactly in the middle between the sound surfaces 20, 22. That is, the tube pieces 30, 31, 32 are arranged side by side, with the free ends all lying in a plane defined by the central axis 28 and the second line 26. In addition, all free ends are connected to an imaginary straight line.
  • the longitudinal axes of the pipe sections 30, 31, 32 are arranged parallel to the Y direction and connected with their ends opposite the ends with a Lackzu slaughter 29 not shown in detail in this figure, the paint to be atomized by the first ultrasonic standing wave atomizer 10 in provides the required amount. But it is also within the Erfindungsgepracticens, when each of the pipe sections 30, 31, 32 is connected to a separate Lackzulite vibration 29. In any case, this should also be meant with the paint supply device 29 described here.
  • a first distance 34 between the first sound surface 20 and the pipe sections 30, 31, 32 and a second distance 36 between the pipe sections 30, 31, 32 and the second sound surface 22 is the same size.
  • a first 34 or a second distance 36 of 17 mm results for an ultrasonic frequency of 24 kH and five sound-speed bellies.
  • FIG. 2 shows a second ultrasonic standing wave atomizer assembly 40 which is substantially the same as the first ultrasonic standing wave atomizer assembly 10, which is why the reference numerals for similar components have been chosen the same.
  • a significant difference between the first 10 and the second ultrasonic standing wave atomizer assembly 40 is that the arrangement of the pipe sections 30, 31, 32 no longer centrally between the acoustic bodies 18 and the first reflection body, in contrast to the arrangement shown in Fig. 1 takes place, but closer to the sound body 18.
  • the arrangement of the pipe sections 30, 31, 32 is selected so that its paint outlet openings in turn come to rest in a selected maximum of sound velocity of the stationary ultrasonic wave, in the second maximum shown, viewed from the sound body 18 ,
  • a third distance 38 between the sound body 18 and the pipe sections 30, 31, 32 is smaller than a fourth distance 39, determined as the distance between the pipe sections 30, 31, 32 and the first reflection body 14.
  • the representation of the pipe sections 30, 31, 32 and the atomizing bubbles shown with the atomized paint particles show that the distance between the pipe sections 30, 31, 32 to each other is selected so that at the free ends of the pipe sections 30, 31, 32nd each form independently working sputtering areas, so that for each pipe section 30, 31, 32 separate paint fins are formed.
  • This has the advantage that the areas in which the discharged paint is atomized to particles, do not interfere with each other.
  • the sputtering process is improved and a comparatively high sputtering rate is achieved.
  • Fig. 3 shows a further advantageous embodiment of the subject invention with a third ultrasonic standing wave atomizer assembly 50, which is constructed substantially similar to the first ultrasonic standing wave atomizer assembly 10. To facilitate the comparability between the used components, therefore, the same reference numerals were again used for comparable components.
  • a fourth 42, a fifth 43 and a sixth pipe section 44 are located exactly midway between the sound body 18 and the first reflection body 14.
  • the corresponding paint outlet openings of the pipe sections 42, 43, 44 are accordingly again arranged in the range of the mean maximum speed of sound, but the paint outlet openings are no longer in the plane spanned by the X, Z direction, but the middle fifth pipe section 43 is located in positive Y direction, above the plane spanned by the X, Z direction, while the fourth 42 and the sixth pipe section 44 are below the plane spanned by the X, Z direction.
  • FIG. 4 shows a fourth ultrasonic standing wave atomizer arrangement 60 with a second reflection body 46, which is arranged opposite a second sonotrode 48.
  • Three first paint tubes 52 are in turn arranged centrally between the second reflection body 46 and the second sonotrode 48. As already shown in FIG. 1, the paint outlet openings of the first paint tubes 52 are aligned along an imaginary line in the Z direction.
  • a special feature of the arrangement shown is that a second sound body 54 on the second sonotrode 48 and the second reflection body 46 have approximately a cuboid shape, wherein the opposing sound surfaces of the second sound body 54 and the second reflection body 46, namely the third sound surface 56th on the second sounding body 54 and the fourth sounding surface 48 on the second reflecting body 46, have a shape corresponding to a skirt portion of a cylindrical body.
  • the imaginary central axis of the cylindrical body is parallel to that line 62 which passes through the paint outlet openings of the first paint tube 52.
  • the projections 64 of the central axis of the imaginary cylinder on the third 56 and on the fourth sound surface 58 are shown as dotted lines.
  • a fifth ultrasonic standing wave atomizer assembly 70 is shown in FIG.
  • the arrangement shown is similar to that of FIG. 4, so that the second paint tubes 52 are in turn arranged centrally between a fifth sound surface 66 and a sixth sound surface 68.
  • the fifth 66 and the sixth sound surface 68 are composed of planar partial surfaces, whose shape, however, is modeled on that of a jacket portion of a cylindrical body. In this way, a widening of the range of the maximum sound velocity in the stationary ultrasonic field is also achieved.
  • FIG. 6 shows a sixth ultrasonic standing wave atomizer arrangement, which starts from the arrangement of the first sonotrode 12 with the first reflection body 14, as shown in FIG.
  • the reference numerals have been adopted accordingly from FIG.
  • three second paint tubes 72 corresponding to the pipe sections 30, 31, 32, as shown in FIG. 1 are arranged, ie have an equal distance from the sonotrode 12 and the first reflection body 14, which here by the drawing of the second distance 36 is shown.
  • three third paint tubes 74 are shown, which are shown in the position corresponding to the position of the pipe sections 30, 31, 32 in FIG. This means that their distance between the third paint tube 74 and the sound body 18 corresponds to the third distance 38 according to FIG. 2. This is shown in this figure accordingly.
  • a total of six paint tubes 72, 74 are disposed between the first sonotrode 12 and the first reflection body 14, in each case in two groups of three paint tubes 72, 74, so that in each case three Lackrschreibchen 74 are arranged starting from the sound body 18 in the second maximum of the sound velocity and three paint tubes 72 in the third maximum and thus above the maximum of sound-fast. With such an arrangement, the rate of paint sputtering can be further increased.
  • cleaning air can be used in the well-known manner that adhesion of atomized paint on the sonotrode or on the reflection body is substantially avoided.
  • shaping air can be used so that the atomized paint particles preferably fly in the desired direction of the painting.
  • the process of directional painting can also be supported by electrostatically charging the paint particles. This charging can be achieved in a generally known manner internally, that is with supplied at high voltage potential supplied paint, or by the so-called external charging, which usually charge the sputtered paint by high-voltage needles, which are located in the vicinity of the sputtering.
  • the workpiece to be painted is then usually placed at ground potential, so that the electrically charged paint particles preferably fly to the workpiece.
  • a combination of internal and external charging is readily possible.
  • the reflection body is another sonotrode, with the particular advantage that the standing ultrasonic field can be particularly strong.
  • the controllability of the ultrasonic field is improved with such a measure.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Special Spraying Apparatus (AREA)

Claims (12)

  1. Agencement de pulvérisation à ondes stationnaires ultrasonores (10, 40, 50, 60, 70, 80) pour produire une brume de vaporisation de peinture afin de peindre une pièce, comprenant une sonotrode (12, 48), un élément structurel (14) disposé en vis-à-vis de la sonotrode (12, 48), un champ ultrasonore stationnaire étant créé en fonctionnement dans l'intervalle entre la sonotrode (12, 48) et l'élément structurel (14), et comprenant un dispositif d'amenée de peinture (29) permettant d'amener de la peinture à proximité d'un maximum de vitesse acoustique du champ ultrasonore, caractérisé en ce que le dispositif d'amenée de peinture (29) comporte, dans la zone du champ ultrasonore stationnaire, au moins deux segments tubulaires (30, 31, 32 ; 42, 43, 44) pour fournir de la peinture, et en ce qu'au moins deux des segments tubulaires (30, 31, 32 ; 42, 43, 44) sont disposés dans la zone d'un maximum sélectionné de vitesse acoustique du champ ultrasonore stationnaire.
  2. Agencement de pulvérisation à ondes stationnaires ultrasonores (10, 40, 50, 60, 70, 80) selon la revendication 1, caractérisé en ce que l'élément structurel (14) est une autre sonotrode.
  3. Agencement de pulvérisation à ondes stationnaires ultrasonores (10, 40, 50, 60, 70, 80) selon la revendication 1 ou 2, caractérisé en ce que l'écartement mutuel des segments tubulaires (30, 31, 32 ; 42, 43, 44) dans la zone du maximum sélectionné est suffisant pour créer, pour chaque segment tubulaire (30, 31, 32 ; 42, 43, 44), des lames de peinture séparées les unes des autres.
  4. Agencement de pulvérisation à ondes stationnaires ultrasonores (10, 40, 50, 60, 70, 80) selon une des revendications précitées, caractérisé en ce que, dans la zone du maximum sélectionné de vitesse acoustique d'une onde ultrasonore stationnaire, les ouvertures de sortie de peinture des segments tubulaires au nombre d'au moins deux (30, 31, 32 ; 42, 43, 44) sont disposées sur une ligne droite imaginaire, et en ce que la ligne droite est perpendiculaire à un axe central imaginaire qui passe par le centre des surfaces acoustiques opposées (20, 22, 56, 58) de la sonotrode (12, 48) et de l'élément structurel (14, 46).
  5. Agencement de pulvérisation à ondes stationnaires ultrasonores (10, 40, 50, 60, 70, 80) selon la revendication 4, caractérisé en ce que la forme des surfaces acoustiques (66, 68) correspond approximativement à une portion d'enveloppe cylindrique reproduisant des faces polyédriques ou la portion d'enveloppe est cylindrique, et en ce que l'axe longitudinal du cylindre correspondant est parallèle à la ligne droite (24, 26, 62).
  6. Agencement de pulvérisation à ondes stationnaires ultrasonores (10, 40, 50, 60, 70, 80) selon une des revendications précédentes 1 à 3, caractérisé en ce que trois segments tubulaires (30, 31, 32 ; 42, 43, 44) sont disposés dans la zone d'un maximum sélectionné de vitesse acoustique d'une onde ultrasonore stationnaire, et en ce que ces segments tubulaires (30, 31, 32 ; 42, 43, 44), respectivement leurs ouvertures de sortie de peinture, sont disposés en triangle, en particulier en triangle équilatéral.
  7. Agencement de pulvérisation à ondes stationnaires ultrasonores (10, 40, 50, 60, 70, 80) selon la revendication 6, caractérisé en ce que la surface définie par le triangle est perpendiculaire à un axe central imaginaire qui passe par le centre des surfaces acoustiques opposées (20, 22, 56, 58, 66, 68) de la sonotrode (12, 48) et de l'élément structurel (14, 46).
  8. Agencement de pulvérisation à ondes stationnaires ultrasonores (10, 40, 50, 60, 70, 80) selon une des revendications précédentes, caractérisé en ce que la distance entre les segments tubulaires au nombre d'au moins deux (30, 31, 32 ; 42, 43, 44) disposés dans la zone d'un maximum sélectionné de vitesse acoustique d'une onde ultrasonore stationnaire et la sonotrode (12, 48) est au plus égale à la distance entre ces segments tubulaires (30, 31, 32 ; 42, 43, 44) et l'élément structurel (14, 46).
  9. Agencement de pulvérisation à ondes stationnaires ultrasonores (10, 40, 50, 60, 70, 80) selon une des revendications précédentes, caractérisé en ce que les segments tubulaires au nombre d'au moins deux (30, 31, 32 ; 42, 43, 44) sont pourvus d'une surface hydrophobe, en particulier d'un revêtement en tétrafluoroéthylène.
  10. Agencement de pulvérisation à ondes stationnaires ultrasonores (10, 40, 50, 60, 70, 80) selon une des revendications précédentes, caractérisé en ce qu'il est prévu un courant d'air de nettoyage pour éviter, respectivement réduire l'arrosage de la sonotrode (12, 48) et/ou de l'élément structurel (14, 46).
  11. Agencement de pulvérisation à ondes stationnaires ultrasonores (10, 40, 50, 60, 70, 80) selon une des revendications précédentes, caractérisé en ce qu'il est prévu un courant d'air de guidage permettant d'influer sur la direction de déplacement de la brume de vaporisation de peinture.
  12. Agencement de pulvérisation à ondes stationnaires ultrasonores (10, 40, 50, 60, 70, 80) selon une des revendications précédentes, caractérisé en ce qu'il est prévu au moins un dispositif de charge pour la charge intérieure et/ou extérieure, permettant de charger électrostatiquement la peinture, respectivement les particules de peinture pulvérisées.
EP03811742A 2002-11-12 2003-10-29 Systeme de pulverisation a ondes stationnaires ultrasonores Expired - Fee Related EP1560663B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10252437A DE10252437A1 (de) 2002-11-12 2002-11-12 Ultraschall-Stehwellen-Zerstäuberanordnung
DE10252437 2002-11-12
PCT/EP2003/011967 WO2004048001A1 (fr) 2002-11-12 2003-10-29 Systeme de pulverisation a ondes stationnaires ultrasonores

Publications (2)

Publication Number Publication Date
EP1560663A1 EP1560663A1 (fr) 2005-08-10
EP1560663B1 true EP1560663B1 (fr) 2007-09-05

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EP03811742A Expired - Fee Related EP1560663B1 (fr) 2002-11-12 2003-10-29 Systeme de pulverisation a ondes stationnaires ultrasonores

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Country Link
US (1) US20060005766A1 (fr)
EP (1) EP1560663B1 (fr)
JP (1) JP2006505407A (fr)
DE (2) DE10252437A1 (fr)
WO (1) WO2004048001A1 (fr)

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DE10327429A1 (de) * 2003-06-18 2005-01-05 Abb Patent Gmbh Ultraschall-Stehwellen-Zerstäuberanordnung
US8413911B2 (en) 2009-11-17 2013-04-09 Black & Decker Inc. Paint sprayer
WO2011062992A1 (fr) * 2009-11-17 2011-05-26 Black & Decker Inc. Mécanisme à libération rapide pour pistolet à peinture
US8550376B2 (en) 2009-11-17 2013-10-08 Black & Decker Inc. Paint sprayer
US8740111B2 (en) 2009-11-17 2014-06-03 Black & Decker Inc. Paint sprayer
US9180472B2 (en) * 2009-11-17 2015-11-10 Black & Decker Inc. Paint sprayer
US8651402B2 (en) * 2009-11-17 2014-02-18 Black & Decker Inc. Adjustable nozzle tip for paint sprayer
DE102012107076A1 (de) 2011-08-24 2013-02-28 Technische Hochschule Wildau Verfahren und Vorrichtung zum thermischen Spritzen von Beschichtungswerkstoffen
GB2542384A (en) * 2015-09-17 2017-03-22 The James Hutton Inst Atomiser assembly
US10864541B2 (en) 2018-01-30 2020-12-15 Ford Motor Company Ultrasonic atomizer with quick-connect mechanism
CN109622980A (zh) * 2019-01-28 2019-04-16 哈尔滨工业大学 一种熔融金属超声驻波非接触式雾化制粉装置及方法

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Also Published As

Publication number Publication date
US20060005766A1 (en) 2006-01-12
EP1560663A1 (fr) 2005-08-10
WO2004048001A1 (fr) 2004-06-10
DE10252437A1 (de) 2004-05-27
DE50308133D1 (de) 2007-10-18
JP2006505407A (ja) 2006-02-16

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