EP1938902B1 - Multi-part nozzle - Google Patents
Multi-part nozzle Download PDFInfo
- Publication number
- EP1938902B1 EP1938902B1 EP07022463.9A EP07022463A EP1938902B1 EP 1938902 B1 EP1938902 B1 EP 1938902B1 EP 07022463 A EP07022463 A EP 07022463A EP 1938902 B1 EP1938902 B1 EP 1938902B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- plates
- exit
- cover plates
- undercuts
- 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.)
- Not-in-force
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- 239000007788 liquid Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
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, wherein two nozzle plates are secured between two cover plates and held at a distance from each other, that facing each other, by the strength the nozzle plates certain narrow sides of the nozzle plates with the two cover plates form the nozzle passage from the nozzle inlet to the nozzle outlet.
- 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 into which a nozzle insert with a nozzle bore is inserted in the region of the nozzle outlet.
- 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.
- JP 2003 275630 A shows a nozzle having a plurality of components of the aforementioned type is known, which has a nozzle passage from a nozzle inlet to a nozzle exit, which is formed by two nozzle plates and two cover plates.
- the mutually facing narrow sides of the two nozzle plates determine with the covering side parts of the two cover plates the nozzle passage.
- the nozzle passage has a long, consistent output section, so that the nozzle can deliver only a constant solid state, the effect of which is not always sufficient.
- the components are easy to produce.
- the undercuts in the nozzle exit serve with their dimensions and configurations as parameters for influencing the oscillation frequency for the reciprocation and the clock frequency of the pulse beam. This allows the effect of the beam to be optimized, which is an advantage especially with liquid cleaning methods.
- 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 has to be ensured that the two cover plates cover the two nozzle plates in the area of 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 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' attached and so are kept at a distance to each other, so that the facing narrow sides in Limit the longitudinal direction of the nozzle passage, as the top view of the nozzle after Fig. 1 and the longitudinal and cross sections BB and AA after the FIGS. 2 and 3 demonstrate.
- the nozzle plates 10 and 10 ' can be manufactured individually, for example by punching or, as Fig. 5 shows, are first produced in the area of the nozzle entrance 40 coherently as a component. If the nozzle from this nozzle plate after Fig. 5 assembled with the cover plates 20 and 20 ', then the separation into the two nozzle plates 10 and 10' completed by subsequent introduction of the nozzle inlet 40 and completed the nozzle passage.
- 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 made individually, are identical and twisted only about 180 ° about the longitudinal center axis between the cover plates 20 and 20' 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' can thereby according to a further embodiment to a fixed unit ( Fig. 4 ) lead 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 the Fig. 2 shows.
- 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, whose details are still in Fig. 6 to be shown.
- the longitudinal section after Fig. 2 can be taken, 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 possibility in itself, the nozzle exit 30 with undercuts 32 and 32 'and 33 and 33' to provide, as the Fig. 6 in enlarged partial view shows.
- 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.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Description
Die Erfindung bezieht sich auf eine Düse mit mehreren Bauteilen, die einen Düsendurchgang von einem Düseneingang zu einem Düsenausgang umschließen und fest miteinander verbunden sind, wobei zwei Düsenplatten zwischen zwei Deckplatten befestigt und so auf Abstand zueinander gehalten sind, dass die einander zugekehrten, durch die Stärke der Düsenplatten bestimmten Schmalseiten der Düsenplatten mit den beiden Deckplatten den Düsendurchgang von Düseneingang zum Düsenausgang bilden.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, wherein two nozzle plates are secured between two cover plates and held at a distance from each other, that facing each other, by the strength the nozzle plates certain narrow sides of the nozzle plates with the two cover plates form the nozzle passage from the nozzle inlet to the nozzle outlet.
Einstückige Düsen mit einem runden Düsendurchgang sind in der Herstellung besonders schwierig, wenn die Düsenöffnung und der Düsenausgang besonders klein sein sollen. Noch schwieriger wird die Herstellung, wenn der Düsendurchgang konisch verjüngende Abschnitte und einen Düsenausgang mit Hinterschnitten oder dergleichen haben soll.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.
Um die Herstellung von Düsen mit einem Anfangsdurchmesser von unter 5 mm und einem Düsenausgang von unter 2,5 mm zu erleichtern sind auch schon zweiteilige Düsen vorgeschlagen worden, wie die
Bei dieser bekannten Düse ist der Düseneinsatz dicht und festsitzend im Düsengrundkörper einzubringen, was mit zusätzlichem Aufwand verbunden ist. Zudem sind die beiden Düsenteile immer noch aufwendig in der Herstellung.In this known nozzle of the nozzle insert is tight and tightly introduce in the nozzle body, which is associated with additional effort. In addition, the two nozzle parts are still consuming in the production.
Wie die
Wie die
Es ist mit diesen bekannten Düsen nicht möglich, einen impulsartig unterbrochenen Strahl mit oszillierender Hin- und Herbewegung zu schaffen.It is not possible with these known nozzles to create a pulse-like interrupted beam with oscillating reciprocating motion.
Es ist Aufgabe der Erfindung diese bekannte Düse so weiterzuentwickeln, dass der abgegebene Festkörperstrahl eine oszillierende Hin- und Herbewegung ausführt und dabei impulsartig unterbrochen ist, ohne auf eine leichte Herstellung der Bauteile für die Düse verzichten zu müssen.It is an object of the invention to further develop this known nozzle so that the discharged solid-state beam performs an oscillating reciprocating motion and is interrupted pulse-like, without having to forego easy production of the components for the nozzle.
Die gestellte Aufgabe wird nach der Erfindung dadurch gelöst, dass in die Teile des Düsenausgangs zusätzliche Hinterschnitte eingebracht sind, die den Düsenausgang bereichsweise erweitern, dass in die Teile des Düsenausgangs im vorgegebenen Abstand von der Öffnung des Düsenausgangs kreisförmige Hinterschnitte eingebracht sind, deren Mittelpunkte im Abstand von den Teilen liegen und deren Radien größer als die Abstände sind und dass im Anschluss an die kreisförmigen Hinterschnitte im Abstand von der Öffnung des Düsenausgangs rechteckige Hinterschnitte in die Teile der Schmalseiten der Düsenplatten mit einer Breite und einer Tiefe eingebracht sind.The stated object is achieved according to the invention in that additional undercuts are introduced into the parts of the nozzle outlet, which extend the nozzle exit areawise, that in the parts of the nozzle outlet at a predetermined distance from the opening of the nozzle outlet circular undercuts are introduced whose centers at a distance lie of the parts and their radii are greater than the distances and that, following the circular undercuts at a distance from the opening of the nozzle outlet rectangular undercuts are introduced into the parts of the narrow sides of the nozzle plates with a width and a depth.
Die Hinterschnitte im Düsenausgang dienen mit ihren Abmessungen und Ausgestaltungen als Parameter zur Beeinflussung der Schwingungsfrequenz für die Hin- und Herbewegung und die Taktfrequenz des Impulsstrahls. Damit lässt sich die Wirkung des Strahls optimieren, was gerade bei mit Flüssigkeit arbeitenden Reinigungsarten von Vorteil ist.The undercuts in the nozzle exit serve with their dimensions and configurations as parameters for influencing the oscillation frequency for the reciprocation and the clock frequency of the pulse beam. This allows the effect of the beam to be optimized, which is an advantage especially with liquid cleaning methods.
Eine zweckmäßige und vorteilhafte Auslegung ist im Anspruch 2 zu entnehmen.An expedient and advantageous design can be found in claim 2.
Die beiden Düsenplatten können als einfache Bauteile oder dergleichen hergestellt werden, wobei die den Düsendurchgang bildenden Schmalseiten in Verbindung mit der Festlegung zwischen den beiden Deckplatten eine Variationsmöglichkeit für den Düsendurchgang bringen, ohne die Herstellung zu erschweren. Es muss nur dafür gesorgt werden, dass die beiden Deckplatten die beiden Düsenplatten im Bereich der den Düsendurchgang bestimmenden Schmalseite überdecken und den Düsendurchgang vervollständigen.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 has to be ensured that the two cover plates cover the two nozzle plates in the area of the narrow passage defining the nozzle passage and complete the nozzle passage.
Die Stärke der Düsenplatten kann dabei sehr klein sein und beträgt etwa zwischen 1 mm und 2 mm, vorzugsweise zwischen 1,2 mm und 1,8 mm, z.B. nur 1,5 mm.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.
Da der Düsendurchgang in der Regel symmetrisch zur Längsmittelachse desselben gestaltet ist, kann nach einer weiteren Vereinfachung vorgesehen sein, dass die beiden Düsenplatten identisch ausgebildet sind und um 180° verdreht zwischen den beiden Deckplatten befestigt sind.Since 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.
Der Zusammenbau der Düse kann nach einer Ausgestaltung so erfolgen, dass die Düsenplatten und die Deckplatten mit aufeinander ausgerichteten Befestigungsbohrungen versehen und miteinander verschraubt sind.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.
Bei Hochdruckdüsen kann zusätzlich vorgesehen sein, dass die Deckplatten auf den den Düsenplatten zugekehrten Seiten außerhalb den den Düsendurchgang bestimmenden Schmalseiten mit Aufnahmenuten für Dichtungselemente versehen sind.In the case of high-pressure nozzles, it may additionally be provided that 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.
Die Verbindung der Bauteile kann jedoch auch so vorgenommen sein, dass die Düsenplatten und die Deckplatten umfangsseitig außerhalb des Düseneingangs und des Düsenausgangs fest miteinander verschweißt sind.However, the 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.
Der Anschluss einer Zuleitung an die Düse kann in einfacher Weise dadurch erfolgen, dass der Düseneingang als Gewindeaufnahme für eine Anschlussleitung mit Gewindeteil ausgebildet ist, die in die fest miteinander verbundene Einheit aus den Düsenplatten und Deckplatten eingebracht ist.The 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.
Bei einer Düse ist der Düsendurchgang so ausgestaltet, dass der Düseneingang in eine Düsenkammer übergeht, die sich domartig in die Innenseiten der angrenzenden Deckplatten erstreckt, dass sich an die Düsenkammer ein Düsenkanal anschließt, der sich zum Düsenausgang hin konisch verjüngt und dass der Düsenausgang durch Teile der Schmalseite der Düsenplatten begrenzt ist, die parallel zueinander verlaufen und eine kleine Breite von ca. 1 mm aufweisen.In a nozzle, 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.
Die Erfindung wird anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels näher erläutert. Es zeigen:
- Fig. 1
- in Draufsicht eine aus zwei Düsenplatten und zwei Deckplatten zusammengesetzte Düse,
- Fig. 2
- einen Längsschnitt durch die Düse entlang der Linie B-B der
Fig. 1 , - Fig. 3
- einen Querschnitt der Düse entlang der Linie A-A der
Fig. 1 , - Fig. 4
- die Düse in perspektivischer Draufsicht,
- Fig. 5
- die beiden Düsenplatten als Stanzteil,
- Fig. 6
- in vergrößerter Teildraufsicht den Düsenausgang zwischen den beiden Düsenplatten.
- Fig. 1
- in plan view a nozzle composed of two nozzle plates and two cover plates,
- Fig. 2
- a longitudinal section through the nozzle along the line BB of
Fig. 1 . - Fig. 3
- a cross section of the nozzle along the line AA of
Fig. 1 . - Fig. 4
- the nozzle in perspective plan view,
- Fig. 5
- the two nozzle plates as a stamped part,
- Fig. 6
- in an enlarged partial plan view of the nozzle exit between the two nozzle plates.
Das Kernstück der erfindungsgemäßen Düse sind die zwei Düsenplatten 10 und 10', die sehr kleine Stärke von ca. 1,5 mm aufweisen und zwischen zwei Deckplatten 20 und 20' befestigt und so auf Abstand zueinander gehalten sind, so dass die einander zugekehrten Schmalseiten in der Längsrichtung den Düsendurchgang begrenzen, wie die Draufsicht auf die Düse nach
Wie aus der
Die Verbindung der Düsenplatten 10 und 10' mit den beiden Deckplatten 20 und 20' kann nach einer weiteren Ausgestaltung dadurch zu einer festen Einheit (
Der neue konstruktive Aufbau der Düse birgt die Möglichkeit in sich, den Düsenausgang 30 mit Hinterschnitte 32 und 32' bzw. 33 und 33' zu versehen, wie die
In Richtung des Düseneinganges 40 schließen sich an die kreisförmigen Hinterschnitte 32 und 32' im Abstand d und d' rechteckförmige Hinterschnitte 33 und 33' in den Abschnitten 31 und 31' des Düsenausganges 30 an. Die rechteckförmigen Hinterschnitte 33 und 33' weisen Breiten e und e' sowie Tiefen f und f auf.In the direction of the
Bei dieser Ausgestaltung des Düsenausganges 30 wird der zugeführte Flüssigkeitsstrahl in Schwingungen versetzt und immer wieder unterbrochen, so dass der über die Öffnung des Düsenausganges abgegebene Flüssigkeitsstrahl eine oszillierende Hin- und Herbewegung ausführt und dabei impulsförmig unterbrochen wird. Die Reinigungswirkung wird dadurch weiter verbessert, ohne dass dafür bewegte mechanische Bauteile benötigt werden.In this embodiment of the
Guter Wirkungsgrad wurde bei einem Ausführungsbeispiel der Düse mit 1,5 mm starken Düsenplatten 10 und 10' und einer Breite B der Düsenöffnung von 1 mm dann erreicht, wenn die Abstände a und a' mit 0.5 mm, die Radien r und r' mit 0,7 mm, die Abstände d und d' 1,5 mm, die Breiten e und e' und die Tiefen f und f 1 mm gewählt werden. Die Abmessungswerte sind als Parameter zu verwenden, um den Strahlwinkel, die Schwingungs- und Impulsfrequenz des abgegebenen Flüssigkeitsstrahles an die gewünschte Wirkung des abgegebenen Flüssigkeitsstrahles optimal anzupassen, wobei die Anzahl und die Form der Hinterschnitte im Düsenausgang 40 als weitere Parameter zur Veränderung des Flüssigkeitsstrahls verwendet werden können.Good efficiency was achieved in one embodiment of the nozzle with 1.5 mm
Claims (10)
- A nozzle having a plurality of components that enclose a nozzle passage from a nozzle entrance to a nozzle exit and are fixedly connected to one another, wherein two nozzle plates (10, 10') are fastened between two cover plates (20, 20') and held at a distance to one another such that the narrow sides-which face one another, and are determined by the thickness of the nozzle plates (10, 10') -of the nozzle plates (10, 10') form, together with the two cover plates (20, 20'), the nozzle passage from the nozzle entrance (40) to the nozzle exit (30),
characterized in that
additional undercuts (32, 32'; 33, 33') that regionally widen the nozzle exit (30) are introduced in order to produce an oscillating and pulsed liquid jet in the parts (31, 31') of the nozzle plates (10, 10') that are at only a short distance from one another, wherein these parts (31, 31') form the nozzle exit (30), and in that circular undercuts (32, 32') having midpoints that lie at the distance (a, a') from the parts (31, 31') and having radii (r, r') that are greater than the distances (a, a') are attached in the parts (31, 31') of the nozzle exit (30) at the predetermined distance (c, c') from the opening of the nozzle exit (30). - The nozzle according to claim 1,
characterized in that
the thickness of the nozzle plates (10, 10') is small and amounts to approximately between 1 and 2 mm, e.g., approximately 1.5 mm. - The nozzle according to claim 1 or 2,
characterized in that
the two nozzle plates (10, 10') are identically configured and are fastened between the two cover plates (20, 20') with 180° of rotation. - The nozzle according to any of claims 1 to 3,
characterized in that
the nozzle plates (10, 10') and the cover plates (20, 20') are provided with fastening bores (45, 45') aligned to one another, and are bolted together. - The nozzle according to any of claims 1 to 4,
characterized in that
the cover plates (20, 20') are provided with receiving grooves (25, 25') for sealing elements, on the sides facing the nozzle plates (10, 10'), outside of the narrow sides defining the nozzle passage. - The nozzle according to any of claims 1 to 3,
characterized in that
the nozzle plates (10, 10') and the cover plates (20, 20') are fixedly welded to one another circumferentially outside the nozzle entrance (40) and the nozzle exit (30). - The nozzle according to any of claims 1 to 6,
characterized in that
the nozzle entrance (40) is configured as a threaded receiver for a connecting line with a threaded part that is introduced into the fixedly interconnected unit made of the nozzle plates (10, 10') and cover plates (20, 20'). - The nozzle according to any of claims 1 to 7,
characterized in that
the nozzle entrance (40) transitions into a nozzle chamber that extends in the shape of a dome into the inner sides of the adjoining cover plates (20, 20'), in that a nozzle channel (14, 14') that tapers conically to the nozzle exit (30) joins the nozzle chamber, and in that the nozzle exit (30) is delimited by parts (31, 31') of the narrow side of the nozzle plates (10, 10') that run parallel to one another and have a small width (b) of approximately 1 mm. - The nozzle according to any of claims 1 to 8,
characterized in that,
subsequent to the circular undercuts (32, 32'), rectangular undercuts (33, 33') are introduced into the parts (31, 31') of the narrow sides of the nozzle plates (10, 10'), at the distance (d, d') to the opening of the nozzle exit (30). - The nozzle according to claim 9,
characterized in that
the distances (a, a') are 0.5 mm, the distances (c, c') are 2 mm, the distances (d, d') are 1.5 mm, the radii (r, r') are 0.7 mm, and widths (e, e') of the rectangular undercuts (33, 33') and depths (f, f') of the rectangular undercuts (33, 33') are 1 mm.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006054507A DE102006054507B3 (en) | 2006-11-20 | 2006-11-20 | Multi-component nozzle producing jet of sand, air or water has nozzle entrance passing into nozzle chamber extending to inside of adjacent cover plate |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1938902A2 EP1938902A2 (en) | 2008-07-02 |
EP1938902A3 EP1938902A3 (en) | 2008-11-05 |
EP1938902B1 true EP1938902B1 (en) | 2017-07-19 |
Family
ID=38922410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07022463.9A Not-in-force EP1938902B1 (en) | 2006-11-20 | 2007-11-20 | Multi-part nozzle |
Country Status (2)
Country | Link |
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EP (1) | EP1938902B1 (en) |
DE (1) | DE102006054507B3 (en) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2039938A (en) * | 1935-12-23 | 1936-05-05 | Frederick W Schultz | Sandblast nozzle |
US4721251A (en) * | 1984-07-27 | 1988-01-26 | Nippon Soken, Inc. | Fluid dispersal device |
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 |
DE10163102A1 (en) | 2001-12-20 | 2003-07-10 | Alto Deutschland Gmbh | High pressure nozzle, in particular for a high pressure cleaning device |
JP3613255B2 (en) * | 2002-03-22 | 2005-01-26 | 独立行政法人産業技術総合研究所 | Deposition equipment |
US20050252539A1 (en) * | 2004-05-17 | 2005-11-17 | Asmo Co., Ltd. | Vehicular washer nozzle |
-
2006
- 2006-11-20 DE DE102006054507A patent/DE102006054507B3/en not_active Expired - Fee Related
-
2007
- 2007-11-20 EP EP07022463.9A patent/EP1938902B1/en not_active Not-in-force
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
EP1938902A2 (en) | 2008-07-02 |
DE102006054507B3 (en) | 2008-02-14 |
EP1938902A3 (en) | 2008-11-05 |
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