EP0734776B1 - Rotor nozzle, in particular for a high-pressure cleaning device - Google Patents

Rotor nozzle, in particular for a high-pressure cleaning device Download PDF

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Publication number
EP0734776B1
EP0734776B1 EP96104182A EP96104182A EP0734776B1 EP 0734776 B1 EP0734776 B1 EP 0734776B1 EP 96104182 A EP96104182 A EP 96104182A EP 96104182 A EP96104182 A EP 96104182A EP 0734776 B1 EP0734776 B1 EP 0734776B1
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EP
European Patent Office
Prior art keywords
rotor
nozzle
accordance
bearing sleeve
support
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EP96104182A
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German (de)
French (fr)
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EP0734776A1 (en
Inventor
Anton Jäger
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Individual
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/04—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
    • B05B3/0409—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet with moving, e.g. rotating, outlet elements
    • B05B3/0463—Rotor nozzles, i.e. nozzles consisting of an element having an upstream part rotated by the liquid flow, and a downstream part connected to the apparatus by a universal joint
    • 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
    • B05B1/3013—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 controlling element being a lift valve

Definitions

  • the invention relates to a rotor nozzle, in particular for a high pressure cleaning device, with a nozzle housing that at its axial one end a central inlet opening and at the other end an outlet for the Has cleaning liquid, as well as with a Nozzle housing inclined with respect to its longitudinal axis arranged, driven by rotation and on the Rolling rotor housing inner wall, which with a of the cleaning liquid flowed through, in a stilt arranged nozzle is provided, the outlet opening pointing end pivotally supported in a cup bearing is.
  • Such a rotor nozzle is, for example, in DE 44 33,646. Basically, it is for many Applications of such rotor nozzles favorable in the Rule-specific high rotation speed of the rotor to reduce what already different measures were proposed. This in turn experiences the However, the rotor nozzle is usually a limitation in that an influence on the spray pattern is not is more or hardly possible.
  • the advantage achieved by the invention is essential in that on the one hand about the storage of the Influencing the rotor on the bearing sleeve Sequence of movements of the flowing through Cleaning fluid for rotary rotor possible is, and that on the other hand on the inside of the rotor attached driving surfaces the movement of the Stilt is influenced, the movement of which is immediate for the achievable spray pattern is responsible.
  • Spray pattern can be influenced within wide limits.
  • convex surface of the ball joint either on the outside the bearing sleeve or on the rotor and accordingly the concave Surface inside either on the rotor or on the Bearing sleeve is arranged. It is further advantageous if the adjacent to the convex surface area of the bearing sleeve facing away from the outlet opening tapered.
  • the driving surface surrounds the stilt in a ring, the result is a conventional, essentially circular Spray pattern.
  • the rotor has a radial Sliding groove for the end of the nozzle facing away from the nozzle mouth Stilt has, whereby the groove walls the driving surfaces form for the stilts.
  • the sliding groove runs here related to the support of the stilt in its cup bearing expediently in the form of a circular arc under a radius that corresponds to the total length of the stilt, so that the Face of the stilts over which the cleaning liquid flows in the direction of the nozzle, always the same distance from the Bottom of the sliding groove.
  • the sliding groove can extend to the outer surface of the rotor, so that the end of the sliding groove also the inflow opening for the Cleaning liquid forms.
  • the sliding groove is one of these narrower flow groove arranged.
  • This flow groove is advantageously about arranged in the middle of the slide groove and at the ends closed. Do close to the top of the Groove walls of the sliding groove are in the sleeve-shaped area of the rotor towards conical surfaces.
  • the spray pattern can be influenced in that the bearing sleeve has two parallel delimiting surfaces, the stilt between them, which are aligned with respect to the longitudinal axis of the nozzle housing at an angle of 90 ° with respect to the sliding groove, the bearing sleeve being connected to a rotor in a rotationally locking manner.
  • These boundary surfaces only allow the stilt to perform an oscillating movement, which results in a linear spray pattern of the rotor nozzle.
  • the alignment of the sliding groove in the rotor at an angle of 90 ° with respect to these boundary surfaces ensures that the rotor can run along a conical surface despite the restriction of the stilt to a pendulum movement.
  • the rotor points in a manner known per se to its End facing away from the outlet opening into an annular groove inserted friction ring over which the rotor on the Inner wall of the nozzle housing expires. This is one of the Measures to reduce the speed is achieved.
  • the rotor nozzle shown in the drawing is used especially for use in connection with a High pressure cleaning device.
  • Rotor nozzle from a nozzle housing 1, which is axially at its one end a central inlet opening 2 and at its other end an outlet 3 for the Has cleaning liquid.
  • Within the Nozzle housing 1 is opposite its longitudinal axis provided inclined rotor 4, through which the Cleaning fluid flowing through the nozzle housing is driven by rotation and is located on the inner wall of the housing passes on.
  • the rotor 4 is provided with a stilt 5, within which a nozzle 6 is arranged, which also is flowed through by the cleaning liquid and this releases through the outlet opening 3 to the outside.
  • the nozzle 6 itself is to do so with your facing the outlet opening 3 End pivotally supported in a cup bearing 7.
  • the rotor 4 is facing towards the outlet opening 3 Side sleeve-shaped and there at the end in the kind of a ball joint mounted on a bearing sleeve 8.
  • the cup bearing 7 is in turn concentric in the Bearing sleeve 8 arranged.
  • the bearing sleeve 8 carries the convex surface of the outside Ball joint, while the rotor 4 inside has a corresponding concave surface. Likewise can however, the rotor 4 also has the convex surface on the outside have the concave surface of the bearing sleeve 8 or is directly adjacent to the nozzle housing 1. To the sequence of movements of the rotor 4 along a conical surface, the one adjacent to the convex surface tapers Region of the bearing sleeve 8 facing away from the outlet opening 3 also conical.
  • the rotor 4 has in its sleeve-shaped Area two radial inflow openings 9 through which enter the cleaning fluid and to the face the stilt 5 can flow.
  • the driving surfaces of the rotor 4 for the stilt 5 can be designed according to the desired spray pattern.
  • the rotor 4 has a radial extending sliding groove 10 for that of the nozzle mouth opposite end of the stilt 5, here the groove walls form the driving surfaces for the stilt 5.
  • the stilt 5 is still a linear movement run inside the rotor 4. This leads to the result to an elliptical or lenticular spray pattern Rotor nozzle, since the stilt 5 when the rotor 4 the full movement stroke only in one direction will participate, while in the perpendicular to this Direction over the sliding groove 10 to a certain extent dodges, so do not reach the maximum deflection becomes.
  • the sliding groove 10 runs in a circular arc under one Radius, which corresponds to the total length of the stilt 5, so that the distance between the end face of the stilt 5 and the groove bottom constant regardless of the position of the stilt 5 is.
  • the sliding groove 10 extends to the outer Shell surface of the rotor 4, so that the end of the sliding groove 10th at the same time the inflow opening 9 into the rotor 4 forms.
  • To prevent the inflow of cleaning fluid into the End face of the stilt 5 is to be further improved in the bottom of the sliding groove 10 one of them narrower than this Flow groove 11 arranged.
  • This flow groove 11 runs approximately in the middle of the sliding groove 10 and is at the end in each case closed.
  • At the top of the groove walls of the Sliding groove 10 close in the sleeve-shaped area of the rotor 4 towards conical surfaces 12, like this can be seen in Fig. 2.
  • the illustrated embodiment on the bearing sleeve 8 additionally two parallel, the stilt 5 between to provide receiving boundary surfaces 13 which with respect to the longitudinal axis 14 of the nozzle housing 1 below an angle of 90 ° with respect to the sliding groove 10 are aligned.
  • the bearing sleeve 8 is with the Rotor 4 rotatably connected, for which purpose the bearing sleeve 8 in Region of their convex surface has a locking projection 15 has, which engages in a recess of the rotor 4.
  • the two boundary surfaces 13 allow the stilt 5 only a pendulum movement, so that there is a result linear spray pattern.
  • By aligning the Sliding groove 10 opposite the boundary surfaces 13 below an angle of 90 ° ensures that the rotor 4 can nevertheless run along a conical surface.
  • Around Maintaining this angle of 90 ° is the rotational one Connection between the rotor 4 and the bearing sleeve 8 required.
  • the rotor 4 has its outlet opening 3 opposite end of a friction ring 16, which in a Ring groove is inserted.
  • the friction ring 16 runs over the Rotor 4 on the inner wall of the nozzle housing 1, whereby on the one hand, wear-free operation, on the other hand, one Reduction of the rotational speed of the rotor 4 is achieved.
  • the inlet opening 2 of the rotor nozzle has one Insert 17 on the cleaning liquid enters tangentially into the interior of the nozzle housing 1.
  • the rotor 4 is driven after Vortex chamber principle.
  • the invention is the same Way with other drive principles, such as under Use of paddle wheels, applicable.
  • the Insert 17 is designed so that its twist the cross-sectional area 18 over which the Cleaning liquid from the insert 17 in the Nozzle housing 1 occurs, and thus the Flow rate of the cleaning liquid can be changed can.

Description

Die Erfindung betrifft eine Rotordüse, insbesondere für ein Hochdruckreinigungsgerät, mit einem Düsengehäuse, das an seinem axial einen Ende eine zentrale Einlaßöffnung und am anderen Ende eine Auslaßöffnung für die Reinigungsflüssigkeit aufweist, sowie mit einem im Düsengehäuse gegenüber dessen Längsachse geneigt angeordneten, drehangetriebenen und an der Gehäuseinnenwand sich abwälzenden Rotor, der mit einer von der Reinigungsflüssigkeit durchströmten, in einer Stelze angeordneten Düse versehen ist, deren zur Auslaßöffnung weisendes Ende in einem Napflager schwenkbar abgestützt ist. The invention relates to a rotor nozzle, in particular for a high pressure cleaning device, with a nozzle housing that at its axial one end a central inlet opening and at the other end an outlet for the Has cleaning liquid, as well as with a Nozzle housing inclined with respect to its longitudinal axis arranged, driven by rotation and on the Rolling rotor housing inner wall, which with a of the cleaning liquid flowed through, in a stilt arranged nozzle is provided, the outlet opening pointing end pivotally supported in a cup bearing is.

Eine derartige Rotordüse ist beispielsweise in der DE 44 33 646 beschrieben. Grundsätzlich ist es für viele Anwendungsfälle solcher Rotordüsen günstig, die in der Regel bauartbedingt hohe Umlaufgeschwindigkeit des Rotors zu verringern, wofür schon unterschiedliche Maßnahmen vorgeschlagen wurden. Hierdurch wiederum erfährt die Rotordüse jedoch in der Regel eine Einschränkung dahingehend, daß eine Beeinflussung des Spritzbildes nicht mehr oder kaum noch möglich ist.Such a rotor nozzle is, for example, in DE 44 33,646. Basically, it is for many Applications of such rotor nozzles favorable in the Rule-specific high rotation speed of the rotor to reduce what already different measures were proposed. This in turn experiences the However, the rotor nozzle is usually a limitation in that an influence on the spray pattern is not is more or hardly possible.

Hiervon ausgehend liegt der Erfindung die Aufgabe zugrunde, eine Rotordüse der eingangs genannten Art so weiterzubilden, daS auch bei Betrieb unter verringerter Drehzahl unterschiedliche Spritzbilder wählbar sind.Proceeding from this, the object of the invention based on a rotor nozzle of the type mentioned above to further develop that even when operating under reduced Speed different spray patterns can be selected.

Diese Aufgabe wird nach der Erfindung dadurch gelöst, daß der Rotor an seiner zur Auslaßöffnung weisenden Seite hülsenförmig ausgebildet ist und dort endseitig in der Art eines Kugelgelenks auf einer Lagerhülse gelagert ist, wobei das Napflager konzentrisch in der Lagerhülse angeordnet ist und der Rotor innenseitig Mitnahmeflächen für die Stelze aufweist.This object is achieved according to the invention in that the rotor on its side facing the outlet opening is sleeve-shaped and there at the end in the manner a ball joint is mounted on a bearing sleeve, the cup bearing concentric in the bearing sleeve is arranged and the rotor inside driving surfaces for the stilt.

Der durch die Erfindung erreichte Vorteil besteht im wesentlichen darin, daS einerseits über die Lagerung des Rotors an der Lagerhülse eine Beeinflussung des Bewegungsablaufes des durch die durchströmende Reinigungsflüssigkeit drehangetriebenen Rotors möglich ist, und daß andererseits über die am Rotor innenseitig angebrachten Mitnahmeflächen der Bewegungsablauf der Stelze beeinflußt wird, deren Bewegung unmittelbar für das erreichbare Spritzbild verantwortlich ist. Durch die individuelle Gestaltung der Mitnahmeflächen kann daher das Spritzbild in weiten Grenzen beeinflußt werden.The advantage achieved by the invention is essential in that on the one hand about the storage of the Influencing the rotor on the bearing sleeve Sequence of movements of the flowing through Cleaning fluid for rotary rotor possible is, and that on the other hand on the inside of the rotor attached driving surfaces the movement of the Stilt is influenced, the movement of which is immediate for the achievable spray pattern is responsible. Through the individual design of the takeaway areas can do that Spray pattern can be influenced within wide limits.

In bevorzugter Ausführungsform der Erfindung ist die konvexe Fläche des Kugelgelenks außenseitig entweder an der Lagerhülse oder am Rotor und entsprechend die konkave Fläche innenseitig entweder am Rotor oder an der Lagerhülse angeordnet ist. Dabei ist es weiter vorteilhaft, wenn der an die konvexe Fläche angrenzende, der Auslaßöffnung abgewandte Bereich der Lagerhülse sich konisch verjüngt.In a preferred embodiment of the invention convex surface of the ball joint either on the outside the bearing sleeve or on the rotor and accordingly the concave Surface inside either on the rotor or on the Bearing sleeve is arranged. It is further advantageous if the adjacent to the convex surface area of the bearing sleeve facing away from the outlet opening tapered.

Weiter ist im Rahmen der Erfindung vorgesehen, daS der Rotor in seinem hülsenförmig ausgebildeten Bereich eine oder mehrere, radial verlaufende Einströmöffnungen für die Reinigungsflüssigkeit aufweist.It is further provided within the scope of the invention that the Rotor in its sleeve-shaped area or more, radially extending inflow openings for the Has cleaning liquid.

Wenn die Mitnahmefläche die Stelze ringförmig umschließt, ergibt sich ein konventionelles, im wesentlichen kreisrundes Spritzbild.If the driving surface surrounds the stilt in a ring, the result is a conventional, essentially circular Spray pattern.

Es besteht jedoch im Rahmen der Erfindung die vorteilhafte Möglichkeit, daS der Rotor eine radial verlaufende Gleitnut für das der Düsenmündung abgewandte Ende der Stelze aufweist, wodurch die Nutwände die Mitnahmeflächen für die Stelze bilden. Die Gleitnut verläuft dabei bezogen auf die Abstützung der Stelze in ihrem Napflager zweckmäßigerweise kreisbogenförmig unter einem Radius, der der Gesamtlänge der Stelze entspricht, so daß die Stirnfläche der Stelze, über die die Reinigungsflüssigkeit in Richtung zur Düse einströmt, stets gleichen Abstand zum Boden der Gleitnut aufweist. Die Gleitnut kann sich dabei bis zur äußeren Mantelfläche des Rotors erstrecken, so daß das Ende der Gleitnut zugleich die Einströmöffnung für die Reinigungsflüssigkeit bildet. However, there is the advantageous within the scope of the invention Possibility that the rotor has a radial Sliding groove for the end of the nozzle facing away from the nozzle mouth Stilt has, whereby the groove walls the driving surfaces form for the stilts. The sliding groove runs here related to the support of the stilt in its cup bearing expediently in the form of a circular arc under a radius that corresponds to the total length of the stilt, so that the Face of the stilts over which the cleaning liquid flows in the direction of the nozzle, always the same distance from the Bottom of the sliding groove. The sliding groove can extend to the outer surface of the rotor, so that the end of the sliding groove also the inflow opening for the Cleaning liquid forms.

Um die Zuströmung der Reinigungsflüssigkeit ins Innere der Stelze weiter zu fördern, ist vorteilhafterweise im Boden der Gleitnut eine dieser gegenüber schmalere Strömungsnut angeordnet. Diese Strömungsnut ist zweckmäßigerweise etwa mittig zur Gleitnut angeordnet und endseitig jeweils geschlossen. Dabei schließen an den oberen Rand der Nutwände der Gleitnut sich in den hülsenförmigen Bereich des Rotors hin erweiternde Konusflächen an.To prevent the inflow of cleaning fluid into the interior of the Advancing stilt is advantageously in the ground the sliding groove is one of these narrower flow groove arranged. This flow groove is advantageously about arranged in the middle of the slide groove and at the ends closed. Do close to the top of the Groove walls of the sliding groove are in the sleeve-shaped area of the rotor towards conical surfaces.

Schließlich kann nach einer weiteren Ausgestaltung das Spritzbild dadurch beeinflußt werden, daß die Lagerhülse zwei parallele, die Stelze zwischen sich aufnehmende Begrenzungsflächen aufweist,
die bezüglich der Längsachse des Düsengehäuses unter einem Winkel von 90° gegenüber der Gleitnut ausgerichtet sind, wobei die Lagerhülse mit einem Rotor drehschlüssig verbunden ist. Diese Begrenzungsflächen lassen die Stelze lediglich eine Pendelbewegung ausführen, wodurch sich ein lineares Spritzbild der Rotordüse ergibt. Durch die Ausrichtung der Gleitnut im Rotor unter einem Winkel von 90° gegenüber diesen Begrenzungsflächen ist sicher gestellt, daS der Rotor trotz der Beschränkung der Stelze auf eine Pendelbewegung längs einer konischen Fläche ablaufen kann.Finally, according to a further embodiment, the spray pattern can be influenced in that the bearing sleeve has two parallel delimiting surfaces, the stilt between them,
which are aligned with respect to the longitudinal axis of the nozzle housing at an angle of 90 ° with respect to the sliding groove, the bearing sleeve being connected to a rotor in a rotationally locking manner. These boundary surfaces only allow the stilt to perform an oscillating movement, which results in a linear spray pattern of the rotor nozzle. The alignment of the sliding groove in the rotor at an angle of 90 ° with respect to these boundary surfaces ensures that the rotor can run along a conical surface despite the restriction of the stilt to a pendulum movement.

Um die Drehschlüssigkeit zwischen der Lagerhülse und dem Rotor zu erreichen, kann vorteilhafterweise die Lagerhülse im Bereich ihrer konvexen Fläche einen in eine Aussparung des Rotors greifenden Rastvorsprung aufweisen.To the rotational connection between the bearing sleeve and the Reaching the rotor can advantageously the bearing sleeve in the area of their convex surface into a recess of the rotor engaging locking projection.

Der Rotor weist in an sich bekannter Weise an seinem der Auslaßöffnung abgewandten Ende einen in eine Ringnut eingelegten Reibring auf, über den der Rotor an der Innenwand des Düsengehäuses abläuft. Dies ist eine der Maßnahmen, durch die eine Reduzierung der Drehzahl erreicht wird.The rotor points in a manner known per se to its End facing away from the outlet opening into an annular groove inserted friction ring over which the rotor on the Inner wall of the nozzle housing expires. This is one of the Measures to reduce the speed is achieved.

Schließlich kann nach einer weiteren Ausgestaltung der Erfindung die Lagerhülse einstückig mit dem Düsengehäuse ausgebildet sein.Finally, according to a further embodiment Invention the bearing sleeve in one piece with the nozzle housing be trained.

Im folgenden wird die Erfindung an einem in der Zeichnung dargestellten Ausführungsbeispiel erläutert; es zeigen:

Fig. 1
einen Längsschnitt durch die Rotordüse,
Fig. 2
einen weiteren Längsschnitt durch die Rotordüse, senkrecht zu dem Schnitt gemäß Fig. 1.
The invention is explained below using an exemplary embodiment shown in the drawing; show it:
Fig. 1
a longitudinal section through the rotor nozzle,
Fig. 2
a further longitudinal section through the rotor nozzle, perpendicular to the section of FIG. 1st

Die in der Zeichnung wiedergegebene Rotordüse dient insbesondere zur Verwendung in Verbindung mit einem Hochdruckreinigungsgerät. Im einzelnen besteht die Rotordüse aus einem Düsengehäuse 1, das an seinem axial einen Ende eine zentrale Einlaßöffnung 2 und an seinem anderen Ende eine Auslaßöffnung 3 für die Reinigungsflüssigkeit aufweist. Innerhalb des Düsengehäuses 1 ist ein gegenüber dessen Längsachse geneigt angeordneter Rotor 4 vorgesehen, der durch die das Düsengehäuse durchströmende Reinigungsflüssigkeit drehangetrieben ist und sich dabei an der Gehäuseinnenwand abwälzt. Der Rotor 4 ist mit einer Stelze 5 versehen, innerhalb der eine Düse 6 angeordnet ist, die ebenfalls von der Reinigungsflüssigkeit durchströmt wird und diese durch die Auslaßöffnung 3 nach außen abgibt. Die Düse 6 selbst ist dazu mit ihrem zur Auslaßöffnung 3 weisenden Ende in einem Napflager 7 schwenkbar abgestützt. The rotor nozzle shown in the drawing is used especially for use in connection with a High pressure cleaning device. In detail there is Rotor nozzle from a nozzle housing 1, which is axially at its one end a central inlet opening 2 and at its other end an outlet 3 for the Has cleaning liquid. Within the Nozzle housing 1 is opposite its longitudinal axis provided inclined rotor 4, through which the Cleaning fluid flowing through the nozzle housing is driven by rotation and is located on the inner wall of the housing passes on. The rotor 4 is provided with a stilt 5, within which a nozzle 6 is arranged, which also is flowed through by the cleaning liquid and this releases through the outlet opening 3 to the outside. The nozzle 6 itself is to do so with your facing the outlet opening 3 End pivotally supported in a cup bearing 7.

Der Rotor 4 ist an seiner zur Auslaßöffnung 3 weisenden Seite hülsenförmig ausgebildet und dort endseitig in der Art eines Kugelgelenks auf einer Lagerhülse 8 gelagert. Das Napflager 7 ist seinerseits konzentrisch in der Lagerhülse 8 angeordnet. Um die Stelze 5 entsprechend dem gewünschten Spritzbild bewegen zu können, weist der Rotor 4 innenseitig Mitnahmeflächen für die Stelze 5 auf.The rotor 4 is facing towards the outlet opening 3 Side sleeve-shaped and there at the end in the Kind of a ball joint mounted on a bearing sleeve 8. The cup bearing 7 is in turn concentric in the Bearing sleeve 8 arranged. To the stilt 5 according to the to be able to move the desired spray pattern Rotor 4 on the inside driving surfaces for the stilt 5.

Die Lagerhülse 8 trägt außenseitig die konvexe Fläche des Kugelgelenks, während der Rotor 4 innenseitig die korrespondierende, konkave Fläche aufweist. Ebenso kann jedoch auch der Rotor 4 außenseitig die konvexe Fläche aufweisen, die der konkaven Fläche der Lagerhülse 8 oder direkt des Düsengehäuses 1 anliegt. Um den Bewegungsablauf des Rotors 4 längs einer konischen Fläche zu ermöglichen, verjüngt sich der an die konvexe Fläche angrenzende, der Auslaßöffnung 3 abgewandte Bereich der Lagerhülse 8 ebenfalls konisch.The bearing sleeve 8 carries the convex surface of the outside Ball joint, while the rotor 4 inside has a corresponding concave surface. Likewise can however, the rotor 4 also has the convex surface on the outside have the concave surface of the bearing sleeve 8 or is directly adjacent to the nozzle housing 1. To the sequence of movements of the rotor 4 along a conical surface, the one adjacent to the convex surface tapers Region of the bearing sleeve 8 facing away from the outlet opening 3 also conical.

Der Rotor 4 weist in seinem hülsenförmig ausgebildeten Bereich zwei radiale Einströmöffnungen 9 auf, durch die die Reinigungsflüssigkeit eintreten und zur Stirnfläche der Stelze 5 strömen kann.The rotor 4 has in its sleeve-shaped Area two radial inflow openings 9 through which enter the cleaning fluid and to the face the stilt 5 can flow.

Die Mitnahmeflächen des Rotors 4 für die Stelze 5 können entsprechend dem gewünschten Spritzbild ausgebildet sein. Im Ausführungsbeispiel weist der Rotor 4 eine radial verlaufende Gleitnut 10 für das der Düsenmündung abgewandte Ende der Stelze 5 auf, wobei hier die Nutwände die Mitnahmeflächen für die Stelze 5 bilden. Zusätzlich zu dem durch den Rotor 4 verursachten Bewegungsablauf kann hier also die Stelze 5 noch eine lineare Bewegung innerhalb des Rotors 4 ausführen. Dies führt im Ergebnis zu einem elliptischen bzw. linsenförmigen Spritzbild der Rotordüse, da die Stelze 5 beim Ablauf des Rotors 4 lediglich in der einen Richtung den vollen Bewegungshub mitmachen wird, während sie in der hierzu senkrechten Richtung über die Gleitnut 10 in gewissem Umfange ausweicht, also nicht die maximale Auslenkung erreichen wird.The driving surfaces of the rotor 4 for the stilt 5 can be designed according to the desired spray pattern. In the exemplary embodiment, the rotor 4 has a radial extending sliding groove 10 for that of the nozzle mouth opposite end of the stilt 5, here the groove walls form the driving surfaces for the stilt 5. In addition to the movement sequence caused by the rotor 4 can here the stilt 5 is still a linear movement run inside the rotor 4. This leads to the result to an elliptical or lenticular spray pattern Rotor nozzle, since the stilt 5 when the rotor 4 the full movement stroke only in one direction will participate, while in the perpendicular to this Direction over the sliding groove 10 to a certain extent dodges, so do not reach the maximum deflection becomes.

Die Gleitnut 10 verläuft kreisbogenförmig unter einem Radius, der der Gesamtlänge der Stelze 5 entspricht, so daß der Abstand zwischen der Stirnfläche der Stelze 5 und dem Nutboden unabhängig von der Lage der Stelze 5 konstant ist. Die Gleitnut 10 erstreckt sich bis zur äußeren Mantelfläche des Rotors 4, so daß das Ende der Gleitnut 10 zugleich auch die Einströmöffnung 9 in den Rotor 4 hinein bildet. Um die Zuströmung der Reinigungsflüssigkeit in die Stirnfläche der Stelze 5 hinein weiter zu verbessern, ist im Boden der Gleitnut 10 eine dieser gegenüber schmalere Strömungsnut 11 angeordnet. Diese Strömungsnut 11 verläuft etwa mittig zur Gleitnut 10 und ist endseitig jeweils geschlossen. An den oberen Rand der Nutwände der Gleitnut 10 schließen sich in den hülsenförmigen Bereich des Rotors 4 hin erweiternde Konusflächen 12 an, wie dies in Fig. 2 zu sehen ist.The sliding groove 10 runs in a circular arc under one Radius, which corresponds to the total length of the stilt 5, so that the distance between the end face of the stilt 5 and the groove bottom constant regardless of the position of the stilt 5 is. The sliding groove 10 extends to the outer Shell surface of the rotor 4, so that the end of the sliding groove 10th at the same time the inflow opening 9 into the rotor 4 forms. To prevent the inflow of cleaning fluid into the End face of the stilt 5 is to be further improved in the bottom of the sliding groove 10 one of them narrower than this Flow groove 11 arranged. This flow groove 11 runs approximately in the middle of the sliding groove 10 and is at the end in each case closed. At the top of the groove walls of the Sliding groove 10 close in the sleeve-shaped area of the rotor 4 towards conical surfaces 12, like this can be seen in Fig. 2.

Wenn anstelle eines elliptischen bzw. linsenförmigen Spritzbildes, das durch die Verwendung der Gleitnut 10 erreicht wird, ein lineares Spritzbild gewünscht wird, dann sind entsprechend dem dargestellten Ausführungsbeispiel an der Lagerhülse 8 zusätzlich zwei parallele, die Stelze 5 zwischen sich aufnehmende Begrenzungsflächen 13 vorzusehen, die bezüglich der Längsachse 14 des Düsengehäuses 1 unter einem Winkel von 90° gegenüber der Gleitnut 10 ausgerichtet sind. Die Lagerhülse 8 ist dabei mit dem Rotor 4 drehschlüssig verbunden, wozu die Lagerhülse 8 im Bereich ihrer konvexen Fläche einen Rastvorsprung 15 aufweist, der in eine Aussparung des Rotors 4 greift.If instead of an elliptical or lenticular spray pattern, that achieved through the use of the sliding groove 10 If a linear spray pattern is required, then the illustrated embodiment on the bearing sleeve 8 additionally two parallel, the stilt 5 between to provide receiving boundary surfaces 13 which with respect to the longitudinal axis 14 of the nozzle housing 1 below an angle of 90 ° with respect to the sliding groove 10 are aligned. The bearing sleeve 8 is with the Rotor 4 rotatably connected, for which purpose the bearing sleeve 8 in Region of their convex surface has a locking projection 15 has, which engages in a recess of the rotor 4.

Die beiden Begrenzungsflächen 13 erlauben der Stelze 5 lediglich eine Pendelbewegung, so daß sich im Ergebnis ein lineares Spritzbild einstellt. Durch die Ausrichtung der Gleitnut 10 gegenüber den Begrenzungsflächen 13 unter einem Winkel von 90° ist sicher gestellt, daß der Rotor 4 gleichwohl längs einer Konusfläche ablaufen kann. Um diesen Winkel von 90° einzuhalten, ist die drehschlüssige Verbindung zwischen dem Rotor 4 und der Lagerhülse 8 erforderlich.The two boundary surfaces 13 allow the stilt 5 only a pendulum movement, so that there is a result linear spray pattern. By aligning the Sliding groove 10 opposite the boundary surfaces 13 below an angle of 90 ° ensures that the rotor 4 can nevertheless run along a conical surface. Around Maintaining this angle of 90 ° is the rotational one Connection between the rotor 4 and the bearing sleeve 8 required.

Im übrigen weist der Rotor 4 an seinem der Auslaßöffnung 3 abgewandten Ende einen Reibring 16 auf, der in eine Ringnut eingelegt ist. Über diesen Reibring 16 läuft der Rotor 4 an der Innenwand des Düsengehäuses 1 ab, wodurch einerseits ein verschleißfreier Betrieb, andererseits eine Verringerung der Umlaufgeschwindigkeit des Rotors 4 erreicht wird.Otherwise, the rotor 4 has its outlet opening 3 opposite end of a friction ring 16, which in a Ring groove is inserted. The friction ring 16 runs over the Rotor 4 on the inner wall of the nozzle housing 1, whereby on the one hand, wear-free operation, on the other hand, one Reduction of the rotational speed of the rotor 4 is achieved.

Die Einlaßöffnung 2 der Rotordüse weist einen Einsatzstutzen 17 auf, über den die Reinigungsflüssigkeit tangential ins Innere des Düsengehäuses 1 eintritt. Hierdurch erfolgt ein Antrieb des Rotors 4 nach dem Wirbelkammerprinzip. Die Erfindung ist jedoch in gleicher Weise auch mit anderen Antriebsprinzipien, etwa unter Verwendung von Schaufelrädern, anwendbar. Der Einsatzstutzen 17 ist dabei so ausgebildet, daß durch seine Verdrehung die Querschnittsfläche 18, über die die Reinigungflüssigkeit aus dem Einsatzstutzen 17 in das Düsengehäuse 1 eintritt, variiert und somit die Durchflußmenge der Reinigungsflüssigkeit verändert werden kann. The inlet opening 2 of the rotor nozzle has one Insert 17 on the cleaning liquid enters tangentially into the interior of the nozzle housing 1. As a result, the rotor 4 is driven after Vortex chamber principle. However, the invention is the same Way with other drive principles, such as under Use of paddle wheels, applicable. Of the Insert 17 is designed so that its twist the cross-sectional area 18 over which the Cleaning liquid from the insert 17 in the Nozzle housing 1 occurs, and thus the Flow rate of the cleaning liquid can be changed can.

Es besteht auch die in der Zeichnung nicht dargestellte Möglichkeit, daß die Lagerhülse 8 einstückig it dem Düsengehäuse 1 ausgebildet ist.There is also the one not shown in the drawing Possibility that the bearing sleeve 8 in one piece with it Nozzle housing 1 is formed.

Claims (10)

  1. Rotor nozzle, in particular for a high pressure cleaning apparatus, comprising a nozzle housing (1) which has an inlet opening (2) in the region of its one end and an outlet opening (3) for the cleaning liquid at the other end, and also comprising a rotor (4) arranged within the nozzle housing (1) and inclined relative to its longitudinal axis (14), with the rotor being rotationally driven and rolling off on the inner wall of the housing, wherein the rotor is provided with a nozzle (6) through which the cleaning liquid flows and which is arranged in a support (5), with the end of the nozzle facing towards the outlet opening (3) being pivotally supported in a cup bearing (7), characterised in that the rotor is of sleeve-like form at its end pointing towards the outlet opening (3) and is journalled there at its end on a bearing sleeve (8) in the manner of a ball joint, with the cup bearing (7) being arranged concentrically within the bearing sleeve (8) and with the rotor (4) having driver surfaces for the support (5) at its inner side.
  2. Rotor nozzle in accordance with claim 1, characterised in that the convex surface of the ball joint is arranged at the outside either at the bearing sleeve (8) or at the rotor (4) and correspondingly the concave surface is arranged at the inner side either at the rotor (4) or at the bearing sleeve (8).
  3. Rotor nozzle in accordance with claim 2, characterised in that the region of the bearing sleeve (8) which adjoins the convex surface and faces away from the outlet opening (3) tapers conically.
  4. Rotor nozzle in accordance with one of the claims 1 to 3, characterised in that the rotor (4) has one or more radially extending inflow openings (9) for the cleaning fluid in its sleeve-like region.
  5. Rotor nozzle in accordance with one of the claims 1 to 4, characterised in that the rotor (4) has a radially extending slide groove (10) for the end of the support (5) remote from the nozzle opening, with the groove walls forming the driver surfaces for the support (5).
  6. Rotor nozzle in accordance with claim 5, characterised in that the sliding groove (10) extends in circular arc-like manner relative to the cup bearing (7) for the support at a radius which corresponds to the total length of the support (5), and in that the slide groove (10) extends up to the outer jacket surface of the rotor (4).
  7. Rotor nozzle in accordance with the claims 5 or 6, characterised in that a flow groove (11) is arranged in the base of the slide groove (10) and is narrower in comparison to the latter.
  8. Rotor nozzle in accordance with claim 7, characterised in that the flow groove (11) is arranged approximately centrally relative to the slide groove (10) and is in each case closed at its ends.
  9. Rotor nozzle in accordance with the claims 5 to 8, characterised in that the bearing sleeve (8) has two parallel boundary surfaces (13) which accommodate the support (5) between them, with the two boundary surfaces (13) being aligned relative to the longitudinal axis (14) of the nozzle housing (1) at an angle of 90° relative to the slide groove (10), with the bearing sleeve (8) being rotationally fixedly connected to the rotor (4).
  10. Rotor nozzle in accordance with claim 9, characterised in that the bearing sleeve (8) has in the region of its convex surface a latch projection (15) which engages into a cut-out of the rotor.
EP96104182A 1995-03-30 1996-03-15 Rotor nozzle, in particular for a high-pressure cleaning device Expired - Lifetime EP0734776B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19511820 1995-03-30
DE19511820A DE19511820A1 (en) 1995-03-30 1995-03-30 Rotor nozzle, in particular for a high-pressure cleaning device

Publications (2)

Publication Number Publication Date
EP0734776A1 EP0734776A1 (en) 1996-10-02
EP0734776B1 true EP0734776B1 (en) 1998-12-09

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EP96104182A Expired - Lifetime EP0734776B1 (en) 1995-03-30 1996-03-15 Rotor nozzle, in particular for a high-pressure cleaning device

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US (1) US5722592A (en)
EP (1) EP0734776B1 (en)
DE (2) DE19511820A1 (en)
DK (1) DK0734776T3 (en)

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DE19703043A1 (en) * 1997-01-28 1998-07-30 Anton Jaeger Reinigungstechnik Rotor nozzle head
DE19711001B4 (en) * 1997-03-17 2006-10-19 Jäger, Anton Rotor nozzle, in particular for a high-pressure cleaning device
DE19830801C2 (en) 1998-07-09 2001-05-10 Anton Jaeger Device for ejecting liquid
US6186414B1 (en) 1998-09-09 2001-02-13 Moen Incorporated Fluid delivery from a spray head having a moving nozzle
US6092739A (en) * 1998-07-14 2000-07-25 Moen Incorporated Spray head with moving nozzle
DE19832568C2 (en) * 1998-07-20 2003-04-30 Anton Jaeger Rotary nozzle
US6199771B1 (en) 1998-11-16 2001-03-13 Moen Incorporated Single chamber spray head with moving nozzle
US6254014B1 (en) 1999-07-13 2001-07-03 Moen Incorporated Fluid delivery apparatus
DE10011503A1 (en) * 2000-03-09 2001-09-13 Hansgrohe Ag Spray head for therapeutic treatment has gearing for movement of jet outlet element in head so that direction of emerging water jet can be continuously altered in repeating pattern in relation to housing
US20050028846A1 (en) * 2001-05-04 2005-02-10 Fratello Daniel A. Fluid emitting nozzles for use with vehicle wash apparatus
US6719218B2 (en) 2001-06-25 2004-04-13 Moen Incorporated Multiple discharge shower head with revolving nozzle
ITMI20040094A1 (en) * 2004-01-23 2004-04-23 Interpump Cleaning S P A Div F LANCE WITH MULTIPLE HANDLING NOZZLE FOR HIGH PRESSURE WASHING EQUIPMENT
US7118051B1 (en) * 2005-08-11 2006-10-10 Anton Jager Rotor nozzle
DE102006019078B4 (en) * 2006-04-25 2021-11-11 Anton Jäger Rotor nozzle
FR2903920B1 (en) 2006-07-20 2009-03-13 Stephane Guerineau ROTATING SPOUT WITH ADJUSTABLE FLOW
US20090113642A1 (en) * 2007-11-06 2009-05-07 Arrow Line S.R.L. Device for washing liquid turbulation for rotary jet heads, especially water-cleaning machines
US10040078B2 (en) * 2015-11-25 2018-08-07 Karl J. Fritze Compact linear oscillating water jet
DE102017110765B4 (en) * 2017-05-17 2022-03-03 Anton Jäger Rotor nozzle and method of increasing the life of a bearing in a rotor nozzle

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DE3623368C2 (en) * 1986-07-11 1993-12-02 Kaercher Gmbh & Co Alfred Rotor nozzle for a high pressure cleaning device
DE3902478C1 (en) * 1989-01-27 1990-07-19 Josef 7918 Illertissen De Kraenzle
DE8909876U1 (en) * 1989-01-27 1989-10-19 Kraenzle, Josef, 7918 Illertissen, De
US5163615A (en) * 1991-07-01 1992-11-17 Kurita Water Industries, Ltd. Generator for cyclically moving jets
DE9108507U1 (en) * 1991-07-10 1991-11-07 Anton Jaeger Montagebau, 7913 Senden, De
DE4129026C1 (en) * 1991-08-31 1993-03-04 Alfred Kaercher Gmbh & Co, 7057 Winnenden, De
DE4239542A1 (en) * 1992-03-28 1993-09-30 Anton Jaeger Rotor nozzle for a high pressure cleaning device
DE4224664C2 (en) * 1992-07-25 2001-05-17 Anton Jaeger Rotor nozzle
DE4433646C2 (en) * 1993-09-29 1996-10-10 Anton Jaeger Rotor nozzle, in particular for a high-pressure cleaning device

Also Published As

Publication number Publication date
US5722592A (en) 1998-03-03
EP0734776A1 (en) 1996-10-02
DE59600929D1 (en) 1999-01-21
DK0734776T3 (en) 1999-08-16
DE19511820A1 (en) 1996-10-02

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