EP2390006A1 - Rotor nozzle - Google Patents

Rotor nozzle Download PDF

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Publication number
EP2390006A1
EP2390006A1 EP11004422A EP11004422A EP2390006A1 EP 2390006 A1 EP2390006 A1 EP 2390006A1 EP 11004422 A EP11004422 A EP 11004422A EP 11004422 A EP11004422 A EP 11004422A EP 2390006 A1 EP2390006 A1 EP 2390006A1
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EP
European Patent Office
Prior art keywords
rotor
fluid
connection
outer cap
connecting portion
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Granted
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EP11004422A
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German (de)
French (fr)
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EP2390006B1 (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

Definitions

  • the invention relates to a rotor nozzle, in particular for high-pressure cleaning devices, with a nozzle housing having at its one end an inlet opening and at the other end an outlet opening for a fluid, in particular water, and arranged with a in a rotor chamber of the nozzle housing, with his to Outlet opening facing the front end supported on a bearing and at least partially flowed through by the fluid rotor, which is displaceable by rotating fluid into the rotor space in rotation about a longitudinal axis and inclined at least in the rotating state to the longitudinal axis.
  • Such rotor nozzles are basically known and serve to expel the respective fluid, in particular under high pressure as a conical fluid jet.
  • Rotor nozzles are also used for cleaning containers or such cavities, in particular contaminated or clogged pipe or duct systems, in which the rotor nozzle can be reciprocated substantially only parallel to the longitudinal axis of its nozzle housing. It is often provided that a portion of the supplied fluid is ejected in such a way that the rotor nozzle is thereby driven by the recoil principle, ie it is thereby in a sense realized a "self-propelled" rotor nozzle. Against this background, it is desirable to minimize the weight of the rotor nozzle as possible.
  • the outer skin of the Rotary nozzle to make interchangeable, since the wear of the outer skin plays such a central role in such applications, ie the outer skin has a significantly lower life than the actual nozzle.
  • the pipes or channels to be cleaned may have different sensitivities to mechanical influences, so that it is also desirable to design a rotor nozzle to be used for cleaning pipes or channels so that the outer skin can be changed in the simplest possible way.
  • a rotor nozzle which is suitable for cleaning containers or for cleaning pipe or duct systems is, for example, in DE 198 43 185 A1 described.
  • the object of the invention is to provide a rotor nozzle of the type mentioned, which has a replaceable outer skin with the lowest possible weight and high intrinsic stability compared to the pressure of the supplied fluid.
  • the rotor nozzle is provided with a connection and support member which is formed on the one hand for connection of the rotor nozzle to a fluid supply line and on the other hand as a support for an outer cap of the rotor nozzle, wherein the connection and support member comprises a connecting portion on which the outer cap to the terminal and carrier member, in particular by screwing, can be coupled, and wherein the rotor space is limited in relation to the longitudinal axis radial direction at least partially by the connecting portion.
  • connection and support member hereinafter also referred to simply as the "connection carrier” not only serves to connect the rotor nozzle to the fluid supply, but also, as it were, “extends forward” to at least partially form the rotor space.
  • connection carrier which forms at least a part of the nozzle housing, which takes place in known rotor nozzles by other components.
  • the connecting portion of the connection carrier which delimits the rotor space can simultaneously serve for coupling the outer cap, which is therefore advantageous, since a comparatively large axial length is available for this coupling, for example by screwing, between the connection carrier and the outer cap.
  • the material of the connecting portion and thus of the connection carrier can be selected independently of the material required for the particular application for the outer cap.
  • the rotor nozzle according to the invention can thus be provided, so to speak, with an inner stability core, which absorbs the mechanical load due to the pressurized fluid and thus keeps away from the outer cap.
  • the nozzle housing unlike in known rotor nozzles, is not formed exclusively by that component which delimits the rotor space.
  • the connection carrier By dividing into a connecting portion of the connection carrier on the one hand and an outer cap on the other hand, the latter can be made of a material of relatively low weight, which advantageously the net weight of the rotor nozzle is reduced overall. Also - as explained above - Required interchangeability of the outer skin of the rotor nozzle is ensured by the couplable with the connecting portion of the connection carrier outer cap.
  • the connecting portion may extend over more than a quarter or over more than half the axial length of the rotor space.
  • the coupling between outer cap and connecting portion is preferably carried out by screwing.
  • the outside of the connecting portion may be provided with a thread for screwing to the outer cap, which is provided for this purpose with a corresponding internal thread.
  • the connecting portion of the connection carrier forming at least part of the boundary of the rotor space advantageously provides a large thread length in comparison to known rotor nozzles.
  • At least one driving bore communicating with the rotor space for the fluid is formed on the connection and carrier member.
  • At least one outwardly opening outlet opening for the fluid which serves for ejecting a cleaning and / or drive jet, is formed on the connection and support member.
  • the connecting portion may be free of outlet openings except for an opening forming the outlet opening or leading to the outlet opening.
  • the invention makes it possible to design all the facilities required for the guidance, guidance and / or distribution of the fluid on the connection and support member. In the design of the outer cap therefore takes no account of this. In particular, it is not necessary to provide the outer cap with outlet openings for the fluid.
  • connection and support member and the outer cap together define an annular space in which the fluid flows and from which the fluid on the one hand via at least one drive bore in the rotor chamber and the other via at least one outlet opening reaches the outside.
  • the amount of fluid required for rotary or rotary drive of the rotor is independent of the amount of fluid used for the other "tasks" of the fluid supplied, in particular for driving the rotor nozzle according to the recoil principle.
  • the rotor nozzle is designed such that at least approximately not more than a quarter of the supplied amount of fluid passes into the rotor space in order to set the rotor in rotation and to be ejected via the rotor.
  • connection and support member and outer cap together limited fluid space - exclusively or supportively by a screw thread between outer cap and connecting portion of the connecting and support member ,
  • connection and support member is integrally formed.
  • the outer cap is made of plastic.
  • a shock-resistant or impact-absorbing plastic can be used. Not only by the generally low weight of the rotor nozzle, but also by this gentle design of the outer cap damage to the inner walls of the pipes or channels can be avoided when used as a pipe or sewer cleaning nozzle.
  • rotor nozzle comprises a rotor 21 which is arranged in a rotor chamber 17, wherein the rotor chamber 17 is located within a nozzle housing, which will be discussed in more detail below.
  • the concrete, known per se structure of the rotor 21 may be basically arbitrary, so that will not be discussed in detail.
  • passing fluid, especially water provides for a rotational drive of the rotor 21, enters the rotor 21 and leaves it at its front end via an outlet opening 15 of the rotor nozzle.
  • nozzle housing a component of a rotor nozzle of the type in question, on the one hand limits the rotor space 17 and on the other hand forms the outside of the rotor nozzle, then the nozzle housing in the rotor nozzle according to the invention insofar divided into two, as the rotor chamber 17 substantially through a connection portion 29 of a connection and support member 25 described in more detail below is limited, whereas the outside or outer skin of the rotor nozzle is formed by a separate component, namely an outer cap 27 made in particular of plastic, which is screwed onto the connecting portion 29.
  • part of the axial length of the rotor chamber 17, which is formed by the connecting portion 29, also vary, ie be shorter or longer than in Fig. 1 shown.
  • a bearing 19 In a front opening of the outer cap 27 is seated a bearing 19, in which the rotor 21 is supported with its front, formed by a nozzle end and in which an outlet opening 15 of the rotor nozzle forming opening is formed.
  • connection and support member 25 which is also referred to below simply as a connection carrier, comprises in addition to the connection section 29 a connection section 45 which in this embodiment is comparatively short and provided with an internal thread with which a fluid supply line (not shown here) can be screwed the rotor nozzle according to the invention is connectable, for example, with a high-pressure cleaner, not shown.
  • the connection portion 45 defines an inlet space 41 for the supplied fluid.
  • connection carrier 25 Between the connecting portion 29 and the connecting portion 45 of the integrally formed, preferably made of metal connection carrier 25 is a Fluidleit- or -vermaschinerabites which includes, inter alia, a radially or with a radial component extending inlet channel 43, the inlet space 41 with an annular space 35 connects.
  • the annular space 35 is delimited jointly by the connection carrier 25 and by the outer cap 27.
  • the sealing of the annular space 35 takes place at two axially spaced-apart sealing areas 37, 39. While the rear sealing area 37 comprises an O-ring, the screw thread for screwing the outer cap 27 onto the connecting portion 29 in the manner of a labyrinth seal is at least one component of the front sealing area 39 The front sealing area 39 also includes a sealing contact between an inwardly facing shoulder 47 on the outer cap 27 and the front, annular end face of the connecting portion 29th
  • the seal in the front sealing region 39 can be made exclusively by the mentioned screw thread, exclusively by the mentioned interaction of shoulder 47 of the outer cap 27 and end face of the connecting portion 29 or by a combination of both.
  • at least one O-ring may be provided at a suitable location.
  • connection carrier 25 Starting from the annular space 35 extending in the connection carrier 25 obliquely rearwardly at least three circumferentially about a longitudinal axis 23 of the rotor nozzle evenly distributed outlet openings or channels 33, of which the sectional view of Fig. 1 an outlet opening 33 shows.
  • the outlet openings 33 serve to drive the rotor nozzle according to the recoil principle.
  • annular space 35 is in fluid communication with the rotor chamber 17, via a drive bore or a drive channel 31, which opens with a radial and / or tangential component in the annular space 17, so that via the drive bore 31 inflowing fluid in Rotor space 17 generates a circular or turbulent flow, which sets the rotor 21 in a rotational movement about the longitudinal axis 23, whereby due to the given during operation inclined orientation of the rotor 21 with respect to the nozzle longitudinal axis 23 from the outlet port 15 of the rotor nozzle, a conical fluid jet is ejected , Closer does not need to be discussed on this principle known operating principle of a rotary nozzle.
  • the number of opening into the rotor chamber 17maschinebohrungen 31 is basically arbitrary.
  • the outer cap 27 can be made of a basically arbitrary material.
  • the stability of the rotor nozzle, in particular with regard to the fluid pressure, is ensured by the connecting portion 29 of the connection carrier 25.
  • connection carrier 25 in which not only the inlet space 41 but also the inlet channel 43, the driving bore 31 and the outlet openings 33 are formed.
  • connection carrier 25 ensures an advantageous separation of the rotary drive for the rotor 21 caused by the drive bore 31 from the recoil drive of the rotor nozzle by means of the outlet openings 33.
  • the outer cap 27 Since the nozzle housing of the rotor nozzle according to the invention is also formed by the outer cap 27, which must withstand only a small proportion of the pressure prevailing in the rotor chamber 17 fluid pressure, the outer cap 27 can be made of a material which has a low weight, whereby the dead weight of the rotor nozzle minimized becomes.
  • the connecting portion 29 provides a comparatively large axial length for the screw thread for coupling the outer cap 27 to the terminal support 25.
  • Fig. 2 corresponds substantially to the embodiment of Fig. 1 , so that reference is made to the corresponding statements.
  • the drilled hole and the outlet openings are in Fig. 2 not shown.
  • the terminal portion 45 is different from the embodiment of FIG Fig. 1 not designed as a relatively short screw socket, but as a plug-in portion, which makes it possible réellestecken a particular designed as a hose fluid supply line to the comparatively long connection portion 45.
  • connection portion 45 is provided, which is designed as a plug-in section for a fluid supply line formed in particular by a hose.
  • the rotor nozzle differs from the Fig. 3 essentially by the size.
  • the rotor nozzle of the Fig. 3 is bigger than the one of Fig. 2 , in turn, larger than the rotor nozzle according to Fig. 1 is.

Abstract

The rotor nozzle comprises a nozzle housing which has an inlet opening at its axial one end for a fluid, particularly water. The nozzle housing has an outlet device at its other end, where the nozzle housing comprises a rotor (21) that is arranged in a rotor chamber (17) of the nozzle housing. The rotor is supported at a bearing (19), and the rotor is shifted to the rotation around a longitudinal axis (23). The rotor chamber is partially limited by a connecting section (29). An outer cap (27) is made of plastic material.

Description

Die Erfindung betrifft eine Rotordüse, insbesondere für Hochdruckreinigungsgeräte, mit einem Düsengehäuse, das an seinem axial einen Ende eine Einlassöffnung und am anderen Ende eine Auslassöffnung für ein Fluid, insbesondere Wasser, aufweist, sowie mit einem in einem Rotorraum des Düsengehäuses angeordneten, mit seinem zur Auslassöffnung weisenden vorderen Ende an einem Lager abgestützten und von dem Fluid zumindest teilweise durchströmbaren Rotor, der durch in den Rotorraum einströmendes Fluid in Rotation um eine Längsachse versetzbar und zumindest im rotierenden Zustand zur Längsachse geneigt ist.The invention relates to a rotor nozzle, in particular for high-pressure cleaning devices, with a nozzle housing having at its one end an inlet opening and at the other end an outlet opening for a fluid, in particular water, and arranged with a in a rotor chamber of the nozzle housing, with his to Outlet opening facing the front end supported on a bearing and at least partially flowed through by the fluid rotor, which is displaceable by rotating fluid into the rotor space in rotation about a longitudinal axis and inclined at least in the rotating state to the longitudinal axis.

Derartige Rotordüsen sind grundsätzlich bekannt und dienen dazu, das jeweilige Fluid insbesondere unter hohem Druck als kegelförmigen Fluidstrahl auszustoßen.Such rotor nozzles are basically known and serve to expel the respective fluid, in particular under high pressure as a conical fluid jet.

Rotordüsen werden auch zur Reinigung von Behältern oder von solchen Hohlräumen, insbesondere von verschmutzten oder verstopften Rohr-oder Kanalsystemen eingesetzt, in denen die Rotordüse im Wesentlichen nur parallel zur Längsachse ihres Düsengehäuses hin- und herbewegt werden kann. Dabei ist häufig vorgesehen, dass ein Teil des zugeführten Fluids derart ausgestoßen wird, dass die Rotordüse hierdurch nach dem Rückstoßprinzip angetrieben wird, d.h. es wird hierdurch gewissermaßen eine "selbstfahrende" Rotordüse realisiert. Vor diesem Hintergrund ist es wünschenswert, das Eigengewicht der Rotordüse möglichst zu minimieren. Des Weiteren ist es insbesondere im Hinblick auf einen möglichen Einsatz in Rohr- oder Kanalsystemen wünschenswert, die Außenhaut der Rotordüse auswechselbar zu gestalten, da der Verschleiß der Außenhaut in derartigen Einsatzgebieten eine zentrale Rolle spielt, d.h. die Außenhaut eine wesentlich geringere Lebensdauer aufweist als die eigentliche Düse. Außerdem können die zu reinigenden Rohre bzw. Kanäle unterschiedliche Empfindlichkeiten gegenüber mechanischen Einflüssen besitzen, so dass es ebenfalls wünschenswert ist, eine zur Reinigung von Rohren bzw. Kanälen einzusetzende Rotordüse so zu gestalten, dass die Außenhaut auf möglichst einfache Weise gewechselt werden kann.Rotor nozzles are also used for cleaning containers or such cavities, in particular contaminated or clogged pipe or duct systems, in which the rotor nozzle can be reciprocated substantially only parallel to the longitudinal axis of its nozzle housing. It is often provided that a portion of the supplied fluid is ejected in such a way that the rotor nozzle is thereby driven by the recoil principle, ie it is thereby in a sense realized a "self-propelled" rotor nozzle. Against this background, it is desirable to minimize the weight of the rotor nozzle as possible. Furthermore, it is desirable in particular with regard to a possible use in pipe or duct systems, the outer skin of the Rotary nozzle to make interchangeable, since the wear of the outer skin plays such a central role in such applications, ie the outer skin has a significantly lower life than the actual nozzle. In addition, the pipes or channels to be cleaned may have different sensitivities to mechanical influences, so that it is also desirable to design a rotor nozzle to be used for cleaning pipes or channels so that the outer skin can be changed in the simplest possible way.

Eine Rotordüse, die zur Reinigung von Behältern oder zur Reinigung von Rohr- bzw. Kanalsystemen geeignet ist, wird beispielsweise in DE 198 43 185 A1 beschrieben.A rotor nozzle, which is suitable for cleaning containers or for cleaning pipe or duct systems is, for example, in DE 198 43 185 A1 described.

Aufgabe der Erfindung ist es, eine Rotordüse der eingangs genannten Art zu schaffen, die bei möglichst geringem Eigengewicht und hoher Eigenstabilität gegenüber dem Druck des zugeführten Fluids eine auswechselbare Außenhaut aufweist.The object of the invention is to provide a rotor nozzle of the type mentioned, which has a replaceable outer skin with the lowest possible weight and high intrinsic stability compared to the pressure of the supplied fluid.

Die Lösung dieser Aufgabe erfolgt durch die Merkmale des Anspruchs 1.The solution of this object is achieved by the features of claim 1.

Erfindungsgemäß ist die Rotordüse mit einem Anschluss- und Trägerorgan versehen, das einerseits zum Anschluss der Rotordüse an eine Fluidzufuhrleitung und andererseits als Träger für eine Außenkappe der Rotordüse ausgebildet ist, wobei das Anschluss- und Trägerorgan einen Verbindungsabschnitt umfasst, an dem die Außenkappe mit dem Anschluss-und Trägerorgan, insbesondere durch Verschrauben, koppelbar ist, und wobei der Rotorraum in bezüglich der Längsachse radialer Richtung zumindest teilweise durch den Verbindungsabschnitt begrenzt ist. Erfindungsgemäß dient das - im Folgenden auch einfach als "Anschlussträger" bezeichnete - Anschluss- und Trägerorgan nicht nur dazu, die Rotordüse an die Fluidzufuhr anzuschließen, sondern ist darüber hinaus gewissermaßen "nach vorne verlängert", um zumindest teilweise den Rotorraum zu bilden. Insofern ist es erfindungsgemäß der Anschlussträger, der zumindest einen Teil des Düsengehäuses bildet, was bei bekannten Rotordüsen durch andere Komponenten erfolgt.According to the invention the rotor nozzle is provided with a connection and support member which is formed on the one hand for connection of the rotor nozzle to a fluid supply line and on the other hand as a support for an outer cap of the rotor nozzle, wherein the connection and support member comprises a connecting portion on which the outer cap to the terminal and carrier member, in particular by screwing, can be coupled, and wherein the rotor space is limited in relation to the longitudinal axis radial direction at least partially by the connecting portion. In accordance with the invention, the connection and support member, hereinafter also referred to simply as the "connection carrier", not only serves to connect the rotor nozzle to the fluid supply, but also, as it were, "extends forward" to at least partially form the rotor space. In this respect, it is according to the invention the connection carrier, which forms at least a part of the nozzle housing, which takes place in known rotor nozzles by other components.

Das erfindungsgemäße Konzept bietet eine Reihe von Vorteilen. Zum einen kann der den Rotorraum begrenzende Verbindungsabschnitt des Anschlussträgers gleichzeitig zum Ankoppeln der Außenkappe dienen, was deshalb vorteilhaft ist, da für diese beispielsweise durch Verschrauben erfolgende Koppelung zwischen Anschlussträger und Außenkappe eine vergleichsweise große axiale Länge zur Verfügung steht. Des Weiteren kann das Material des Verbindungsabschnitts und damit des Anschlussträgers unabhängig von dem für den jeweiligen Anwendungszweck erforderlichen Material für die Außenkappe gewählt werden. Insbesondere ist es möglich, den Anschlussträger einschließlich des Verbindungsabschnitts aus Metall zu fertigen und für die Außenkappe ein Kunststoffmaterial vorzusehen. Die erfindungsgemäße Rotordüse kann folglich gewissermaßen mit einem inneren Stabilitätskern versehen werden, der die mechanische Belastung aufgrund des unter Druck zugeführten Fluids aufnimmt und somit von der Außenkappe fernhält. Des Weiteren ist vorteilhaft, dass erfindungsgemäß das Düsengehäuse anders als bei bekannten Rotordüsen nicht ausschließlich von derjenigen Komponente gebildet wird, die den Rotorraum begrenzt. Durch die Aufteilung in einen Verbindungsabschnitt des Anschlussträgers einerseits und ein Außenkappe andererseits kann letztere aus einem Material von relativ geringem Gewicht hergestellt werden, womit in vorteilhafter Weise das Eigengewicht der Rotordüse insgesamt reduziert wird. Auch die - wie eingangs erläutert - gewünschte Auswechselbarkeit der Außenhaut der Rotordüse ist durch die mit dem Verbindungsabschnitt des Anschlussträgers koppelbare Außenkappe gewährleistet.The inventive concept offers a number of advantages. On the one hand, the connecting portion of the connection carrier which delimits the rotor space can simultaneously serve for coupling the outer cap, which is therefore advantageous, since a comparatively large axial length is available for this coupling, for example by screwing, between the connection carrier and the outer cap. Furthermore, the material of the connecting portion and thus of the connection carrier can be selected independently of the material required for the particular application for the outer cap. In particular, it is possible to manufacture the connection carrier, including the connection section, of metal and to provide a plastic material for the outer cover. The rotor nozzle according to the invention can thus be provided, so to speak, with an inner stability core, which absorbs the mechanical load due to the pressurized fluid and thus keeps away from the outer cap. Furthermore, it is advantageous that according to the invention the nozzle housing, unlike in known rotor nozzles, is not formed exclusively by that component which delimits the rotor space. By dividing into a connecting portion of the connection carrier on the one hand and an outer cap on the other hand, the latter can be made of a material of relatively low weight, which advantageously the net weight of the rotor nozzle is reduced overall. Also - as explained above - Required interchangeability of the outer skin of the rotor nozzle is ensured by the couplable with the connecting portion of the connection carrier outer cap.

Bevorzugte Weiterbildungen der Erfindung sind auch in den abhängigen Ansprüchen, der Beschreibung sowie der Zeichnung angegeben.Preferred embodiments of the invention are also specified in the dependent claims, the description and the drawings.

Insbesondere kann sich der Verbindungsabschnitt über mehr als ein Viertel oder über mehr als die Hälfte der axialen Länge des Rotorraums erstrecken.In particular, the connecting portion may extend over more than a quarter or over more than half the axial length of the rotor space.

Wie eingangs bereits erwähnt, erfolgt das Koppeln zwischen Außenkappe und Verbindungsabschnitt bevorzugt durch Verschrauben. Hierzu kann die Außenseite des Verbindungsabschnitts mit einem Gewinde zum Verschrauben mit der Außenkappe versehen sein, die zu diesem Zweck mit einem entsprechenden Innengewinde versehen ist. Hierbei stellt in vorteilhafter Weise der zumindest einen Teil der Begrenzung des Rotorraumes bildende Verbindungsabschnitt des Anschlussträgers eine im Vergleich zu bekannten Rotordüsen große Gewindelänge zur Verfügung.As already mentioned, the coupling between outer cap and connecting portion is preferably carried out by screwing. For this purpose, the outside of the connecting portion may be provided with a thread for screwing to the outer cap, which is provided for this purpose with a corresponding internal thread. In this case, the connecting portion of the connection carrier forming at least part of the boundary of the rotor space advantageously provides a large thread length in comparison to known rotor nozzles.

Des Weiteren kann erfindungsgemäß vorgesehen sein, dass wenigstens eine mit dem Rotorraum kommunizierende Treibbohrung für das Fluid am Anschluss- und Trägerorgan ausgebildet ist.Furthermore, it can be provided according to the invention that at least one driving bore communicating with the rotor space for the fluid is formed on the connection and carrier member.

Des Weiteren ist in einem Ausführungsbeispiel vorgesehen, dass wenigstens eine nach außen mündende Austrittsöffnung für das Fluid, die zum Ausstoßen eines Reinigungs- und/oder Antriebsstrahls dient, am Anschluss- und Trägerorgan ausgebildet ist.Furthermore, it is provided in one embodiment that at least one outwardly opening outlet opening for the fluid, which serves for ejecting a cleaning and / or drive jet, is formed on the connection and support member.

Der Verbindungsabschnitt kann mit Ausnahme einer die Auslassöffnung bildenden oder zur Auslassöffnung führenden Öffnung frei von Austrittsöffnungen sein.The connecting portion may be free of outlet openings except for an opening forming the outlet opening or leading to the outlet opening.

Die Erfindung ermöglicht es, alle für die Führung, Leitung und/oder Verteilung des Fluids erforderlichen Einrichtungen am Anschluss- und Trägerorgan auszubilden. Bei der Gestaltung der Außenkappe braucht folglich hierauf keine Rücksicht genommen zu werden. Insbesondere ist es nicht erforderlich, die Außenkappe mit Austrittsöffnungen für das Fluid zu versehen.The invention makes it possible to design all the facilities required for the guidance, guidance and / or distribution of the fluid on the connection and support member. In the design of the outer cap therefore takes no account of this. In particular, it is not necessary to provide the outer cap with outlet openings for the fluid.

In einem weiteren Ausführungsbeispiel der Erfindung ist vorgesehen, dass das Anschluss- und Trägerorgan und die Außenkappe gemeinsam einen Ringraum begrenzen, in den das Fluid einströmt und von dem aus das Fluid zum einen über wenigstens eine Treibbohrung in den Rotorraum und zum anderen über zumindest eine Austrittsöffnung nach außen gelangt.In a further embodiment of the invention it is provided that the connection and support member and the outer cap together define an annular space in which the fluid flows and from which the fluid on the one hand via at least one drive bore in the rotor chamber and the other via at least one outlet opening reaches the outside.

Hierdurch ist es nicht erforderlich, zusätzlich zu der Auslassöffnung für den aus dem Rotor austretenden Fluidstrahl zusätzliche Austrittsöffnungen oder Austrittskanäle vorzusehen, die vom Rotorraum ausgehen. Folglich wird hierdurch eine Trennung zwischen dem System für den Drehantrieb des Rotors und das Ausstoßen des Fluids über den Rotor einerseits und einem zusätzlich vorgesehenen, insbesondere zum Antreiben der Rotordüse dienenden Fluidaustrittssystem geschaffen. Insbesondere ist es möglich, ein zusätzliches Fluidaustrittssystem zu Reinigungs- oder Antriebszwecken ohne Druckverlust in Bezug auf dasjenige System zu realisieren, das für den Drehantrieb des Rotors und für das Ausstoßen des Fluids über den Rotor sorgt.As a result, it is not necessary to provide, in addition to the outlet opening for the fluid jet issuing from the rotor, additional outlet openings or outlet channels which emanate from the rotor space. Consequently, a separation between the system for the rotary drive of the rotor and the ejection of the fluid via the rotor on the one hand and an additionally provided, in particular for driving the rotor nozzle serving fluid outlet system is thereby provided. In particular, it is possible to realize an additional fluid outlet system for cleaning or driving purposes without pressure loss with respect to that system which provides for the rotary drive of the rotor and for the ejection of the fluid via the rotor.

Des Weiteren wird hierdurch erreicht, dass die für den Dreh- oder Rotationsantrieb des Rotors erforderliche Fluidmenge unabhängig ist von der Fluidmenge, die für die anderen "Aufgaben" des zugeführten Fluids verwendet wird, insbesondere für das Antreiben der Rotordüse nach dem Rückstoßprinzip. In diesem Zusammenhang ist zu erwähnen, dass vorzugsweise die Rotordüse derart ausgelegt ist, dass zumindest näherungsweise nicht mehr als ein Viertel der zugeführten Fluidmenge in den Rotorraum gelangt, um den Rotor in Drehung zu versetzen und über den Rotor ausgestoßen zu werden.Furthermore, this ensures that the amount of fluid required for rotary or rotary drive of the rotor is independent of the amount of fluid used for the other "tasks" of the fluid supplied, in particular for driving the rotor nozzle according to the recoil principle. In this context, it should be mentioned that preferably the rotor nozzle is designed such that at least approximately not more than a quarter of the supplied amount of fluid passes into the rotor space in order to set the rotor in rotation and to be ejected via the rotor.

In vorteilhafter Weise kann zumindest eine Abdichtung des vorstehend erwähnten Ringraumes - oder allgemein eines einem wie auch immer gearteten Zweck dienenden, von Anschluss- und Trägerorgan und Außenkappe gemeinsam begrenzten Fluidraumes - ausschließlich oder unterstützend durch ein Schraubgewinde zwischen Außenkappe und Verbindungsabschnitt des Anschluss- und Trägerorgans erfolgen.Advantageously, at least one sealing of the above-mentioned annular space - or generally serving a whatsoever purpose, of connection and support member and outer cap together limited fluid space - exclusively or supportively by a screw thread between outer cap and connecting portion of the connecting and support member ,

Bevorzugt ist das Anschluss- und Trägerorgan einstückig ausgebildet.Preferably, the connection and support member is integrally formed.

Wie eingangs bereits erwähnt, kann vorgesehen sein, dass die Außenkappe aus Kunststoff hergestellt ist. Hierfür kann insbesondere ein schlagfester bzw. schlagabsorbierender Kunststoff eingesetzt werden. Nicht nur durch das grundsätzlich geringe Eigengewicht der Rotordüse, sondern auch durch diese schonende Ausgestaltung der Außenkappe kann hierdurch bei einem Einsatz als Rohr- bzw. Kanalreinigungsdüse eine Beschädigung der Innenwände der Rohre bzw. Kanäle vermieden werden.As already mentioned, it can be provided that the outer cap is made of plastic. For this purpose, in particular a shock-resistant or impact-absorbing plastic can be used. Not only by the generally low weight of the rotor nozzle, but also by this gentle design of the outer cap damage to the inner walls of the pipes or channels can be avoided when used as a pipe or sewer cleaning nozzle.

Die Erfindung wird im Folgenden beispielhaft unter Bezugnahme auf die Zeichnung beschrieben. Es zeigen:

Fig. 1-3
jeweils verschiedene Ansichten eines möglichen Ausführungsbeispiels einer erfindungsgemäßen Rotordüse.
The invention will now be described by way of example with reference to the drawings. Show it:
Fig. 1-3
each different views of a possible embodiment of a rotor nozzle according to the invention.

Die in Fig. 1 dargestellte erfindungsgemäße Rotordüse umfasst einen Rotor 21, der in einem Rotorraum 17 angeordnet ist, wobei der Rotorraum 17 sich innerhalb eines Düsengehäuses befindet, auf das nachstehend näher eingegangen wird. Der konkrete, an sich bekannte Aufbau des Rotors 21 kann grundsätzlich beliebig sein, so dass hierauf nicht näher eingegangen wird. In den Rotorraum 17 gelangendes Fluid, insbesondere Wasser, sorgt für eine Drehmitnahme des Rotors 21, tritt in den Rotor 21 ein und verlässt diesen an seinem vorderen Ende über eine Auslassöffnung 15 der Rotordüse.In the Fig. 1 illustrated rotor nozzle according to the invention comprises a rotor 21 which is arranged in a rotor chamber 17, wherein the rotor chamber 17 is located within a nozzle housing, which will be discussed in more detail below. The concrete, known per se structure of the rotor 21 may be basically arbitrary, so that will not be discussed in detail. In the rotor chamber 17 passing fluid, especially water, provides for a rotational drive of the rotor 21, enters the rotor 21 and leaves it at its front end via an outlet opening 15 of the rotor nozzle.

Wenn man als "Düsengehäuse" eine Komponente einer Rotordüse der hier in Rede stehenden Art bezeichnet, die einerseits den Rotorraum 17 begrenzt und andererseits die Außenseite der Rotordüse bildet, dann ist bei der erfindungsgemäßen Rotordüse das Düsengehäuse insofern zweigeteilt, als der Rotorraum 17 im Wesentlichen durch einen Verbindungsabschnitt 29 eines nachstehend näher beschriebenen Anschluss- und Trägerorgans 25 begrenzt wird, wohingegen die Außenseite oder Außenhaut der Rotordüse von einem separaten Bauteil gebildet wird, nämlich von einer insbesondere aus Kunststoff hergestellten Außenkappe 27, die auf den Verbindungsabschnitt 29 geschraubt ist.If one designates as a "nozzle housing" a component of a rotor nozzle of the type in question, on the one hand limits the rotor space 17 and on the other hand forms the outside of the rotor nozzle, then the nozzle housing in the rotor nozzle according to the invention insofar divided into two, as the rotor chamber 17 substantially through a connection portion 29 of a connection and support member 25 described in more detail below is limited, whereas the outside or outer skin of the rotor nozzle is formed by a separate component, namely an outer cap 27 made in particular of plastic, which is screwed onto the connecting portion 29.

Erfindungsgemäß kann derjenige Teil der axialen Länge des Rotorraumes 17, der von dem Verbindungsabschnitt 29 gebildet wird, auch variieren, d.h. kürzer oder länger sein als in Fig. 1 dargestellt.According to the invention that part of the axial length of the rotor chamber 17, which is formed by the connecting portion 29, also vary, ie be shorter or longer than in Fig. 1 shown.

In einer vorderen Öffnung der Außenkappe 27 sitzt ein Lager 19, in welchem sich der Rotor 21 mit seinem vorderen, von einer Düse gebildeten Ende abstützt und in welchem eine die Auslassöffnung 15 der Rotordüse bildende Öffnung ausgebildet ist.In a front opening of the outer cap 27 is seated a bearing 19, in which the rotor 21 is supported with its front, formed by a nozzle end and in which an outlet opening 15 of the rotor nozzle forming opening is formed.

Das im Folgenden auch einfach als Anschlussträger bezeichnete Anschluss- und Trägerorgan 25 umfasst zusätzlich zu dem Verbindungsabschnitt 29 einen Anschlussabschnitt 45, der in diesem Ausführungsbeispiel vergleichsweise kurz ausgebildet und mit einem Innengewinde versehen ist, mit dem eine hier nicht dargestellte Fluidzuführleitung verschraubt werden kann, über welche die erfindungsgemäße Rotordüse beispielsweise mit einem nicht dargestellten Hochdruckreinigungsgerät verbindbar ist. Der Anschlussabschnitt 45 definiert einen Einlassraum 41 für das zugeführte Fluid.The connection and support member 25, which is also referred to below simply as a connection carrier, comprises in addition to the connection section 29 a connection section 45 which in this embodiment is comparatively short and provided with an internal thread with which a fluid supply line (not shown here) can be screwed the rotor nozzle according to the invention is connectable, for example, with a high-pressure cleaner, not shown. The connection portion 45 defines an inlet space 41 for the supplied fluid.

Zwischen dem Verbindungsabschnitt 29 und dem Anschlussabschnitt 45 des einstückig ausgebildeten, bevorzugt aus Metall hergestellten Anschlussträgers 25 befindet sich ein Fluidleit- oder -verteilerabschnitt, der unter anderem einen sich radial oder mit einer radialen Komponente erstreckenden Einlasskanal 43 umfasst, der den Einlassraum 41 mit einem Ringraum 35 verbindet. Der Ringraum 35 ist gemeinsam vom Anschlussträger 25 und von der Außenkappe 27 begrenzt.Between the connecting portion 29 and the connecting portion 45 of the integrally formed, preferably made of metal connection carrier 25 is a Fluidleit- or -verteilerabschnitt which includes, inter alia, a radially or with a radial component extending inlet channel 43, the inlet space 41 with an annular space 35 connects. The annular space 35 is delimited jointly by the connection carrier 25 and by the outer cap 27.

Die Abdichtung des Ringraumes 35 erfolgt an zwei axial voneinander beabstandeten Dichtbereichen 37, 39. Während der hintere Dichtbereich 37 einen O-Ring umfasst, ist das Schraubgewinde zum Aufschrauben der Außenkappe 27 auf den Verbindungsabschnitt 29 nach Art einer Labyrinthdichtung zumindest ein Bestandteil des vorderen Dichtbereiches 39. Der vordere Dichtbereich 39 umfasst außerdem eine abdichtende Berührung zwischen einer nach innen weisenden Schulter 47 an der Außenkappe 27 und der vorderen, kreisringförmigen Stirnfläche des Verbindungsabschnitts 29.The sealing of the annular space 35 takes place at two axially spaced-apart sealing areas 37, 39. While the rear sealing area 37 comprises an O-ring, the screw thread for screwing the outer cap 27 onto the connecting portion 29 in the manner of a labyrinth seal is at least one component of the front sealing area 39 The front sealing area 39 also includes a sealing contact between an inwardly facing shoulder 47 on the outer cap 27 and the front, annular end face of the connecting portion 29th

Die Abdichtung im vorderen Dichtbereich 39 kann ausschließlich durch das erwähnte Schraubgewinde, ausschließlich durch das erwähnte Zusammenwirken von Schulter 47 der Außenkappe 27 und Stirnfläche des Verbindungsabschnitts 29 oder durch eine Kombination von beidem erfolgen. Zusätzlich kann an geeigneter Stelle wenigstens ein O-Ring vorgesehen sein.The seal in the front sealing region 39 can be made exclusively by the mentioned screw thread, exclusively by the mentioned interaction of shoulder 47 of the outer cap 27 and end face of the connecting portion 29 or by a combination of both. In addition, at least one O-ring may be provided at a suitable location.

Vom Ringraum 35 ausgehend erstrecken sich im Anschlussträger 25 schräg nach hinten wenigstens drei in Umfangsrichtung um eine Längsachse 23 der Rotordüse gleichmäßig verteilt angeordnete Austrittsöffnungen oder -kanäle 33, von denen die Schnittdarstellung der Fig. 1 eine Austrittsöffnung 33 zeigt. Die Austrittsöffnungen 33 dienen dazu, die Rotordüse nach dem Rückstoßprinzip anzutreiben.Starting from the annular space 35 extending in the connection carrier 25 obliquely rearwardly at least three circumferentially about a longitudinal axis 23 of the rotor nozzle evenly distributed outlet openings or channels 33, of which the sectional view of Fig. 1 an outlet opening 33 shows. The outlet openings 33 serve to drive the rotor nozzle according to the recoil principle.

Des Weiteren steht der Ringraum 35 in Fluidverbindung mit dem Rotorraum 17, und zwar über eine Treibbohrung oder einen Treibkanal 31, die bzw. der mit einer radialen und/oder tangentialen Komponente in den Ringraum 17 mündet, so dass über die Treibbohrung 31 einströmendes Fluid im Rotorraum 17 eine Ring- oder Wirbelströmung erzeugt, die den Rotor 21 in eine Umlaufbewegung um die Längsachse 23 versetzt, wodurch aufgrund der im Betrieb gegebenen geneigten Orientierung des Rotors 21 bezüglich der Düsen-Längsachse 23 aus der Auslassöffnung 15 der Rotordüse ein kegelförmiger Fluidstrahl ausgestoßen wird. Näher braucht auf dieses grundsätzlich bekannte Funktionsprinzip einer Rotordüse nicht eingegangen zu werden.Furthermore, the annular space 35 is in fluid communication with the rotor chamber 17, via a drive bore or a drive channel 31, which opens with a radial and / or tangential component in the annular space 17, so that via the drive bore 31 inflowing fluid in Rotor space 17 generates a circular or turbulent flow, which sets the rotor 21 in a rotational movement about the longitudinal axis 23, whereby due to the given during operation inclined orientation of the rotor 21 with respect to the nozzle longitudinal axis 23 from the outlet port 15 of the rotor nozzle, a conical fluid jet is ejected , Closer does not need to be discussed on this principle known operating principle of a rotary nozzle.

Die Anzahl der in den Rotorraum 17 mündenden Treibbohrungen 31 ist grundsätzlich beliebig.The number of opening into the rotor chamber 17 Treibbohrungen 31 is basically arbitrary.

In vorteilhafter Weise kann bei der erfindungsgemäßen Rotordüse die Außenkappe 27 aus einem grundsätzlich beliebigen Material hergestellt werden. Die Stabilität der Rotordüse insbesondere im Hinblick auf den Fluiddruck wird durch den Verbindungsabschnitt 29 des Anschlussträgers 25 sichergestellt.Advantageously, in the rotor nozzle according to the invention, the outer cap 27 can be made of a basically arbitrary material. The stability of the rotor nozzle, in particular with regard to the fluid pressure, is ensured by the connecting portion 29 of the connection carrier 25.

Des Weiteren ist erfindungsgemäß von Vorteil, dass alle für die Verteilung des Fluids erforderlichen Funktionen vom Anschlussträger 25 bereitgestellt werden, in welchem nicht nur der Einlassraum 41, sondern außerdem der Einlasskanal 43, die Treibbohrung 31 und die Austrittsöffnungen 33 ausgebildet sind.Furthermore, it is advantageous according to the invention that all functions required for the distribution of the fluid are provided by the connection carrier 25, in which not only the inlet space 41 but also the inlet channel 43, the driving bore 31 and the outlet openings 33 are formed.

Der Umstand, dass die insbesondere für den Rückstoßantrieb der Rotordüse sorgenden Austrittsöffnungen 33 im Anschlussträger 25 ausgebildet sind, sorgt für eine vorteilhafte Trennung des mittels der Treibbohrung 31 bewirkten Drehantriebs für den Rotor 21 von dem Rückstoßantrieb der Rotordüse mittels der Austrittsöffnungen 33.The fact that the outlet openings 33, which provide in particular for the recoil drive of the rotor nozzle, are formed in the connection carrier 25 ensures an advantageous separation of the rotary drive for the rotor 21 caused by the drive bore 31 from the recoil drive of the rotor nozzle by means of the outlet openings 33.

Da das Düsengehäuse der erfindungsgemäßen Rotordüse auch von der Außenkappe 27 gebildet wird, die allenfalls einem geringen Anteil des im Rotorraum 17 herrschenden Fluiddrucks widerstehen muss, kann die Außenkappe 27 aus einem Material hergestellt werden, das ein geringes Gewicht aufweist, womit das Eigengewicht der Rotordüse minimiert wird.Since the nozzle housing of the rotor nozzle according to the invention is also formed by the outer cap 27, which must withstand only a small proportion of the pressure prevailing in the rotor chamber 17 fluid pressure, the outer cap 27 can be made of a material which has a low weight, whereby the dead weight of the rotor nozzle minimized becomes.

Schließlich stellt der Verbindungsabschnitt 29 eine vergleichsweise große axiale Länge für das Schraubgewinde zum Koppeln der Außenkappe 27 an den Anschlussträger 25 zur Verfügung.Finally, the connecting portion 29 provides a comparatively large axial length for the screw thread for coupling the outer cap 27 to the terminal support 25.

Das Ausführungsbeispiel der Fig. 2 entspricht im Wesentlichen dem Ausführungsbeispiel der Fig. 1, so dass auf die entsprechenden Ausführungen verwiesen wird. Die Treibbohrung und die Austrittsöffnungen sind in Fig. 2 nicht dargestellt.The embodiment of Fig. 2 corresponds substantially to the embodiment of Fig. 1 , so that reference is made to the corresponding statements. The drilled hole and the outlet openings are in Fig. 2 not shown.

Der Anschlussabschnitt 45 ist anders als im Ausführungsbeispiel der Fig. 1 nicht als relativ kurzer Schraubstutzen ausgebildet, sondern als ein Steckabschnitt, der es ermöglicht, eine insbesondere als Schlauch ausgebildete Fluidzufuhrleitung auf den vergleichsweise langen Anschlussabschnitt 45 aufzustecken.The terminal portion 45 is different from the embodiment of FIG Fig. 1 not designed as a relatively short screw socket, but as a plug-in portion, which makes it possible aufzustecken a particular designed as a hose fluid supply line to the comparatively long connection portion 45.

Auch beim Ausführungsbeispiel der Fig. 3 ist ein relativ langer Anschlussabschnitt 45 vorgesehen, der als Steckabschnitt für eine insbesondere von einem Schlauch gebildete Fluidzufuhrleitung ausgebildet ist.Also in the embodiment of Fig. 3 a relatively long connection portion 45 is provided, which is designed as a plug-in section for a fluid supply line formed in particular by a hose.

Vom Ausführungsbeispiel der Fig. 2 unterscheidet sich die Rotordüse der Fig. 3 im Wesentlichen durch die Baugröße. Die Rotordüse der Fig. 3 ist größer als jene der Fig. 2, die wiederum größer als die Rotordüse gemäß Fig. 1 ist.From the embodiment of Fig. 2 the rotor nozzle differs from the Fig. 3 essentially by the size. The rotor nozzle of the Fig. 3 is bigger than the one of Fig. 2 , in turn, larger than the rotor nozzle according to Fig. 1 is.

Was die insbesondere im Einleitungsteil sowie in Verbindung mit dem Ausführungsbeispiel der Fig. 1 erwähnten Besonderheiten und Vorteile der erfindungsgemäßen Rotordüse anbetrifft, so gelten diese Ausführungen gleichermaßen für die Rotordüsen gemäß Fig. 2 und Fig. 3.What the particular in the introductory part as well as in connection with the embodiment of Fig. 1 mentioned special features and advantages of the rotor nozzle according to the invention, so these statements apply equally to the rotor nozzles according to Fig. 2 and Fig. 3 ,

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1515
Auslassöffnungoutlet
1717
Rotorraumrotor chamber
1919
Lagercamp
2121
Rotorrotor
2323
Längsachselongitudinal axis
2525
Anschluss- und TrägerorganConnection and support member
2727
Außenkappeouter cap
2929
Verbindungsabschnittconnecting portion
3131
Treibbohrungblowing hole
3333
Austrittsöffnungoutlet opening
3535
Ringraumannulus
3737
Dichtbereichsealing area
3939
Dichtbereichsealing area
4141
Einlassrauminlet space
4343
Einlasskanalinlet channel
4545
Anschlussabschnittconnecting section
4747
Schultershoulder

Claims (10)

Rotordüse, insbesondere für Hochdruckreinigungsgeräte,
mit einem Düsengehäuse, das an seinem axial einen Ende eine Einlassöffnung und am anderen Ende eine Auslassöffnung (15) für ein Fluid, insbesondere Wasser, aufweist,
mit einem in einem Rotorraum (17) des Düsengehäuses angeordneten, mit seinem zur Auslassöffnung (15) weisenden vorderen Ende an einem Lager (19) abgestützten und von dem Fluid zumindest teilweise durchströmbaren Rotor (21), der durch in den Rotorraum (17) einströmendes Fluid in Rotation um eine Längsachse (23) versetzbar und zumindest im rotierenden Zustand zur Längsachse (23) geneigt ist, und
mit einem Anschluss- und Trägerorgan (25), das einerseits zum Anschluss der Rotordüse an eine Fluidzufuhrleitung und andererseits als Träger für eine Außenkappe (27) der Rotordüse ausgebildet ist, wobei das Anschluss- und Trägerorgan (25) einen Verbindungsabschnitt (29) umfasst, an dem die Außenkappe (27) mit dem Anschluss- und Trägerorgan (25), insbesondere durch Verschrauben, koppelbar ist, und
wobei der Rotorraum (17) in bezüglich der Längsachse (23) radialer Richtung zumindest teilweise durch den Verbindungsabschnitt (29) begrenzt ist.Rotor nozzle, in particular for high-pressure cleaning devices,
with a nozzle housing having an inlet opening at its one axial end and an outlet opening (15) at the other end for a fluid, in particular water,
with a rotor (21) arranged in a rotor chamber (17) of the nozzle housing, with its front end facing the outlet opening (15), supported on a bearing (19) and at least partially permeable by the fluid, which flows through the rotor chamber (17) Fluid in rotation about a longitudinal axis (23) displaceable and inclined at least in the rotating state to the longitudinal axis (23), and
with a connection and support member (25), which is designed, on the one hand, for connecting the rotor nozzle to a fluid supply line and, on the other hand, as a support for an outer cap (27) of the rotor nozzle, the connection and support member (25) comprising a connection section (29), on which the outer cap (27) with the connection and support member (25), in particular by screwing, can be coupled, and
wherein the rotor space (17) is at least partially delimited by the connecting portion (29) in the radial direction with respect to the longitudinal axis (23). Rotordüse nach Anspruch 1,
dadurch gekennzeichnet,
dass sich der Verbindungsabschnitt (29) über mehr als ein Viertel der axialen Länge des Rotorraumes (17) erstreckt, wobei insbesondere sich der Verbindungsabschnitt (29) über mehr als die Hälfte der axialen Länge des Rotorraumes (17) erstreckt.A rotor nozzle according to claim 1,
characterized,
in that the connecting portion (29) extends over more than a quarter of the axial length of the rotor space (17), wherein in particular the connecting portion (29) extends over more than half the axial length of the rotor space (17). Rotordüse nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass der Verbindungsabschnitt (29) nach vorne offen ist, wobei bevorzugt eine vordere Öffnung des Verbindungsabschnitts die Auslassöffnung (15) bildet oder zur Auslassöffnung (15) führt.A rotor nozzle according to claim 1 or 2,
characterized,
in that the connecting section (29) is open towards the front, wherein preferably a front opening of the connecting section forms the outlet opening (15) or leads to the outlet opening (15). Rotordüse nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass der Verbindungsabschnitt (29) zumindest im Bereich des Rotorraumes (17) im Wesentlichen zylindrisch ausgebildet ist, und/oder dass die Innenseite des Verbindungsabschnitts (29) als Abstütz-, Abroll- und/oder Abwälzfläche für den Rotor (21) ausgebildet ist, insbesondere für einen hinteren Endbereich des Rotors (21).Rotor nozzle according to one of the preceding claims,
characterized,
in that the connecting portion (29) is substantially cylindrical at least in the region of the rotor space (17), and / or that the inside of the connecting portion (29) is designed as a supporting, rolling and / or rolling surface for the rotor (21), in particular for a rear end region of the rotor (21). Rotordüse nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass die Außenseite des Verbindungsabschnitts (29) mit einem Gewinde zum Verschrauben mit der Außenkappe (27) versehen ist.Rotor nozzle according to one of the preceding claims,
characterized,
in that the outside of the connecting portion (29) is provided with a thread for screwing to the outer cap (27). Rotordüse nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass wenigstens eine mit dem Rotorraum (17) kommunizierende Treibbohrung (31) für das Fluid am Anschluss- und Trägerorgan (25) ausgebildet ist, und/oder dass wenigstens eine nach außen mündende Austrittsöffnung (33) für das Fluid, die zum Ausstoßen eines Reinigungs- und/oder Antriebsstrahls dient, am Anschluss-und Trägerorgan (25) ausgebildet ist, und/oder dass der Verbindungsabschnitt (29) mit Ausnahme einer die Auslassöffnung (15) bildenden oder zur Auslassöffnung (15) führenden Öffnung frei von Austrittsöffnungen ist.Rotor nozzle according to one of the preceding claims,
characterized,
in that at least one drive bore (31) for the fluid communicating with the rotor space (17) is formed on the connection and support member (25), and / or that at least one outlet opening (33) for the fluid discharging outwards discharges a cleaning - and / or drive jet, is formed on the connection and support member (25), and / or that the connecting portion (29) with the exception of the outlet opening (15) forming or to the outlet opening (15) leading opening is free from outlet openings. Rotordüse nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass das Anschluss- und Trägerorgan (25) und die Außenkappe (27) gemeinsam einen Ringraum (35) begrenzen, in den das Fluid einströmt und von dem aus das Fluid über wenigstens eine Treibbohrung (31) in den Rotorraum (17) und über zumindest eine Austrittsöffnung (33) nach außen gelangt.Rotor nozzle according to one of the preceding claims,
characterized,
that the connection and support member (25) and the outer cap (27) together define an annular space (35) into which the fluid flows and from which the fluid via at least one drive bore (31) in the rotor space (17) and at least an outlet opening (33) comes to the outside. Rotordüse nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass wenigstens ein von Anschluss- und Trägerorgan (25) und Außenkappe (27) gemeinsam begrenzter Fluidraum (35) an zumindest zwei in axialer Richtung voneinander beabstandeten Dichtbereichen (37, 39) abgedichtet ist, wobei bevorzugt eine Dichtbereich (39) zumindest teilweise von einem Schraubgewinde zwischen Außenkappe (27) und Verbindungsabschnitt (29) des Anschluss- und Trägerorgans (25) gebildet ist.Rotor nozzle according to one of the preceding claims,
characterized,
in that at least one fluid space (35) delimited jointly by connection and support member (25) and outer cap (27) is sealed at at least two sealing regions (37, 39) which are spaced apart from one another in the axial direction, wherein preferably a sealing region (39) is at least partially separated from one Screw thread between the outer cap (27) and connecting portion (29) of the connecting and supporting member (25) is formed. Rotordüse nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass mit Ausnahme der Auslassöffnung (15) alle in den Rotorraum (17) und nach außen mündenden Austrittsöffnungen (33) am Anschluss- und Trägerorgan (25) ausgebildet sind, und/oder dass die Außenkappe (27) mit Ausnahme der Auslassöffnung (15) frei von zusätzlichen Austrittsöffnungen ist.Rotor nozzle according to one of the preceding claims,
characterized,
in that, with the exception of the outlet opening (15), all the outlet openings (33) opening into the rotor space (17) and outwardly are formed on the connection and support member (25), and / or that the outer cap (27), with the exception of the outlet opening (15) is free of additional outlet openings. Rotordüse nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass das Anschluss- und Trägerorgan (25) einstückig ausgebildet ist, und/oder dass die Außenkappe (27) aus Kunststoff hergestellt ist.Rotor nozzle according to one of the preceding claims,
characterized,
that the connection and support member (25) is integrally formed, and / or that the outer cap (27) is made of plastic.
EP20110004422 2010-05-28 2011-05-30 Rotor nozzle Not-in-force EP2390006B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201010021748 DE102010021748A1 (en) 2010-05-28 2010-05-28 Rotary nozzle

Publications (2)

Publication Number Publication Date
EP2390006A1 true EP2390006A1 (en) 2011-11-30
EP2390006B1 EP2390006B1 (en) 2013-01-23

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EP20110004422 Not-in-force EP2390006B1 (en) 2010-05-28 2011-05-30 Rotor nozzle

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EP (1) EP2390006B1 (en)
DE (1) DE102010021748A1 (en)
DK (1) DK2390006T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016138929A1 (en) * 2015-03-02 2016-09-09 Alfred Kärcher Gmbh & Co. Kg Rotary nozzle for a high-pressure cleaning device

Citations (5)

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Publication number Priority date Publication date Assignee Title
US4989786A (en) * 1989-01-27 1991-02-05 Kraenzle Josef Rotatable nozzle in particular for high pressure cleaning apparatuses
JPH05123613A (en) * 1991-10-31 1993-05-21 Maruyama Mfg Co Ltd Nozzle device
EP0563595A1 (en) * 1992-03-28 1993-10-06 Anton Jäger Rotor nozzle for a high-pressure cleaning device
EP0891816A2 (en) * 1997-07-15 1999-01-20 Anton Jäger Rotor nozzle
DE19843185A1 (en) 1998-09-21 2000-03-23 Anton Jaeger Rotor nozzle esp. for high pressure cleaning appliances has additional fluid outlets to improved movement through blocked pipes

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Publication number Priority date Publication date Assignee Title
DE3623368C2 (en) * 1986-07-11 1993-12-02 Kaercher Gmbh & Co Alfred Rotor nozzle for a high pressure cleaning device
DE19632323A1 (en) * 1996-08-10 1998-02-12 Kaercher Gmbh & Co Alfred Rotor nozzle for a high pressure cleaning device
DE29708394U1 (en) * 1997-03-20 1998-07-16 Suttner Gmbh & Co Kg Rotor nozzle for a high pressure cleaning device
DE19742420A1 (en) * 1997-09-25 1999-04-01 Anton Jaeger Rotor jet head for cleaning device
DE102006025931A1 (en) * 2006-06-02 2007-12-06 Jäger, Anton Rotor nozzle for high pressure cleaning device, has switching element locking control channel opposite to flow opening in sealing manner and releasing another control channel, and insert body locking rear end of housing in sealing manner
DE202007006088U1 (en) * 2007-04-26 2007-06-28 Hans Einhell Ag Swirl effect jet for high pressure spray cleaner has a rotating element supported by a water film inside a conical jet housing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4989786A (en) * 1989-01-27 1991-02-05 Kraenzle Josef Rotatable nozzle in particular for high pressure cleaning apparatuses
JPH05123613A (en) * 1991-10-31 1993-05-21 Maruyama Mfg Co Ltd Nozzle device
EP0563595A1 (en) * 1992-03-28 1993-10-06 Anton Jäger Rotor nozzle for a high-pressure cleaning device
EP0891816A2 (en) * 1997-07-15 1999-01-20 Anton Jäger Rotor nozzle
DE19843185A1 (en) 1998-09-21 2000-03-23 Anton Jaeger Rotor nozzle esp. for high pressure cleaning appliances has additional fluid outlets to improved movement through blocked pipes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016138929A1 (en) * 2015-03-02 2016-09-09 Alfred Kärcher Gmbh & Co. Kg Rotary nozzle for a high-pressure cleaning device
RU2657039C1 (en) * 2015-03-02 2018-06-08 Альфред Кэрхер Гмбх Унд Ко. Кг Rotary nozzle for the high pressure washing unit
AU2015385182B2 (en) * 2015-03-02 2019-02-28 Alfred Kärcher Gmbh & Co. Kg Rotary nozzle for a high-pressure cleaning device

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Publication number Publication date
DK2390006T3 (en) 2013-05-06
EP2390006B1 (en) 2013-01-23
DE102010021748A1 (en) 2011-12-01

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