EP0931594B1 - Rotor nozzle - Google Patents

Rotor nozzle Download PDF

Info

Publication number
EP0931594B1
EP0931594B1 EP19990101478 EP99101478A EP0931594B1 EP 0931594 B1 EP0931594 B1 EP 0931594B1 EP 19990101478 EP19990101478 EP 19990101478 EP 99101478 A EP99101478 A EP 99101478A EP 0931594 B1 EP0931594 B1 EP 0931594B1
Authority
EP
European Patent Office
Prior art keywords
nozzle
outer sleeve
rotor
sleeve
accordance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19990101478
Other languages
German (de)
French (fr)
Other versions
EP0931594A2 (en
EP0931594A3 (en
Inventor
Anton Jäger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0931594A2 publication Critical patent/EP0931594A2/en
Publication of EP0931594A3 publication Critical patent/EP0931594A3/en
Application granted granted Critical
Publication of EP0931594B1 publication Critical patent/EP0931594B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/04Spraying 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
    • B05B3/0409Spraying 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
    • B05B3/0463Rotor 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 a high-pressure cleaning device, with a nozzle housing having at its one end axially a particular central inlet opening and at the other end an outlet opening for the cleaning liquid, and with a nozzle housing in relation to the longitudinal axis inclined, rotationally driven and at the housing inner wall is rolling rotor or rotor, in which a nozzle through which the cleaning liquid flows is provided, whose end pointing to the outlet opening is movably supported in a cup bearing.
  • Rotor nozzles of this type are known for example from DE 39 02 478 C1, DE 44 19 404 A1, or DE 9 108 507 U, which also shows the features of the independent claims 1 and 12.
  • Object of the present invention is to ensure the best possible speed behavior of rolling on the housing inner wall rotor on the one hand and supported in the cup bearing nozzle on the other hand while minimizing the wear occurring in the cup bearing wear.
  • the rotor comprises an outer sleeve and a concentric to the nozzle-holding inner sleeve, wherein the outer sleeve is blocked against self-rotation about its axis.
  • the inner sleeve carrying the nozzle is sealed off from the amount of water rotating in the nozzle housing and comes into contact only with the water entering the inner sleeve and leading from the inner sleeve to the nozzle, which also facilitates the rectification of the water fed to the nozzle and the effectiveness of a rectifier increases, which is arranged on the input side, for example, in the inner sleeve.
  • the rotation of the outer sleeve is preferably realized by a fork-shaped design of the napflager facultyen end of the outer sleeve in conjunction with housing fixed between the fork elements engaging webs or the fact that an outer sleeve is used with substantially linsenförmiger cross-sectional shape whose outer contour of the inner contour of the nozzle housing is adapted that due to the positive engagement of the outer sleeve on the housing inner wall a self-rotation of the outer sleeve is prevented about its axis.
  • the rotor nozzle according to Fig. 1 comprises a conical nozzle housing 1 with an inlet side cylindrical approach, in which a sealing member is arranged sealed, having an inlet opening through which the pressurized cleaning liquid or water is introduced tangentially into the housing interior.
  • This rotating fluid in the housing interior takes the rotor 4 with or sets this rotor 4 in rotation and flows through the rotor 4 via a nozzle 6 to the outlet port 3rd
  • the rotor 4 consists of an inner sleeve 15 and an outer sleeve 16, wherein the inner sleeve 15 is rotatable relative to the outer sleeve 16 and carries the nozzle 6, which is supported in a cup bearing 5.
  • the outer sleeve 16 is not the entire surface of the inner sleeve 15, but only in mutually spaced, relatively small-scale storage areas 20th
  • the inner sleeve 15 may be made of metal, such as brass, it is preferable for the outer sleeve 16 to be an elastically compressible material, e.g. a plastic material or rubber material used.
  • a flow rectifier is expediently arranged on the inlet side in the flow channel 13.
  • the cup bearing 5 is formed in a bearing receiving part 7 made of plastic material, which is sealingly inserted into the nozzle housing 1 and the housing interior 12 towards a guide lug 11 which is externally formed kugelkalottenförmig and the complementary shaped end of the outer sleeve 16 is encompassed. Between this guide lug 11 and the outer sleeve is further provided a rotating the outer sleeve 14 about the axis 17 preventing blocking.
  • the rotor 4 of the rotating fluid inside the housing 12 in a circumferential movement under Plant to be displaced on the housing inner wall, so that a conical spray pattern is formed.
  • the self-rotation of the nozzle 6 or the nozzle holding this nozzle during operation of the rotor nozzle is completely decoupled from the rotational movement of the cleaning liquid or the water in the housing interior 12, since the outer sleeve 16 acts as a shield and the cleaning liquid or the water only axially flows through the inner sleeve in the direction of the nozzle 6 and thus no tangential drive component acts on the inner sleeve 15.
  • FIG. 2 shows a concrete realization of the already mentioned in connection with FIG. 1 rotational blocking of the outer sleeve 16.
  • 16 fork elements 18 are formed on the napflager facultyen end of the outer sleeve, engage between the webs 19, fixed to the housing 1 and preferably are connected to the guide lug 11.
  • These rotational blocking elements do not affect the rotation of the rotor, but prevent rotation of the outer sleeve 16 about its axis.
  • this embodiment differs from the embodiment of FIG. 1 essentially in that the outer sleeve 16 comes to rest only on a portion of its length on the inner wall of the housing 1, via an inserted sleeve member 21 made of an elastically compressible material.
  • This sleeve member 21 is about the outer contour of the actual outer sleeve 16 before something.
  • This consisting of elastic material sleeve member 21 may be fixedly connected to the outer sleeve 16 or mounted loosely in a corresponding recess, so that not only a relative rotation between the inner sleeve 15 and the outer sleeve 16, but also possibly a relative rotation between outer sleeve 16 and sleeve member 21st is possible.
  • the outer sleeve 16 is not blocked against self-rotation in the region of the cup bearing, but this blockage is via the choice of a lenticular cross-sectional shape 22 for the outer sleeve 16, as shown in the sectional view corresponding to the line AB.
  • a multipart outer sleeve is provided while maintaining the decoupling principle between inner sleeve and outer sleeve of the rotor.
  • the cooperating with the napflager facultyen guide projection 11 part of the outer sleeve is formed as a separate bearing part 24 that is under bias of a spring 23.
  • the defined positive engagement in Kugelkalotten Scheme between guide projection 11 and bearing part 4 is also maintained unchanged when wear occurs in the region of the cup bearing. This leads to the fact that there are practically two sliding bearings which can be displaced relative to one another, namely the mating bearing between nozzle and cup bearing and the mating bearing between bearing part 24 and guide lug 11.
  • an outer sleeve part 25 is provided on the inner sleeve 15, the receiving ring portions for mutually spaced support rings 26 has.
  • the outer sleeve part 25 is rotatably mounted on the inner sleeve 15, and the support rings 16, which may consist of compressible material, are either fixed or rotatably arranged in the associated ring receptacles.
  • the explicitly shown in the embodiments of FIGS. 1 and 3 gap 27 is in more or less pronounced form even in the usual variants between inner sleeve and outer sleeve available to ensure the relative rotatability.
  • the rotatability of the outer sleeve about its axis is preferably prevented using a cable fixation analogous to FIG. 2, but it is at the same time the relative rotatability between the outer sleeve and inner sleeve not realized, but with respect to these two sleeves provided a relative Unverdusckle, which is achieved for example by pressing or other clamping fixation between the inner and outer sleeve.

Description

Die Erfindung betrifft eine Rotordüse, insbesondere für ein Hochdruckreinigungsgerät, mit einem Düsengehäuse, das an seinem axial einen Ende eine insbesondere 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 Läufer oder Rotor, in dem eine von der Reinigungsflüssigkeit durchströmte Düse vorgesehen ist, deren zur Auslaßöffnung weisendes Ende in einem Napflager beweglich abgestützt ist.The invention relates to a rotor nozzle, in particular for a high-pressure cleaning device, with a nozzle housing having at its one end axially a particular central inlet opening and at the other end an outlet opening for the cleaning liquid, and with a nozzle housing in relation to the longitudinal axis inclined, rotationally driven and at the housing inner wall is rolling rotor or rotor, in which a nozzle through which the cleaning liquid flows is provided, whose end pointing to the outlet opening is movably supported in a cup bearing.

Rotordüsen dieser Art sind beispielsweise bekannt aus der DE 39 02 478 C1, der DE 44 19 404 A1, oder der DE 9 108 507 U, die auch die Merkmale der unabhängigen Ansprüche 1 und 12 zeigt.Rotor nozzles of this type are known for example from DE 39 02 478 C1, DE 44 19 404 A1, or DE 9 108 507 U, which also shows the features of the independent claims 1 and 12.

Aufgabe der vorliegenden Erfindung ist es, unter gleichzeitiger Minimierung des im Napflager auftretenden Verschleißes ein möglichst optimales Drehzahlverhalten des sich an der Gehäuseinnenwand abwälzenden Läufers einerseits und der im Napflager abgestützten Düse andererseits zu gewährleisten.Object of the present invention is to ensure the best possible speed behavior of rolling on the housing inner wall rotor on the one hand and supported in the cup bearing nozzle on the other hand while minimizing the wear occurring in the cup bearing wear.

Dazu ist gemäß der Erfindung im wesentlichen vorgesehen, daß der Rotor eine Außenhülse und eine dazu konzentrische, die Düse halternde Innenhülse umfaßt, wobei die Außenhülse gegen Eigenrotation um ihre Achse blockiert ist.For this purpose, it is provided according to the invention essentially that the rotor comprises an outer sleeve and a concentric to the nozzle-holding inner sleeve, wherein the outer sleeve is blocked against self-rotation about its axis.

Demgemäß ist die die Düse tragende Innenhülse von der im Düsengehäuse rotierenden Wassermenge abgeschottet und kommt nur mit dem axial in die Innenhülse eintretenden und von der Innenhülse zur Düse geleiteten Wasser in Berührung, was auch die Gleichrichtung des zur Düse geführten Wassers erleichtert und die Wirksamkeit eines Gleichrichters erhöht, der beispielsweise in der Innenhülse eingangsseitig angeordnet ist. Wesentlich ist, daß durch die erfindungsgemäße Ausgestaltung die Bewegung der Innenhülse von der Bewegung der Außenhülse entkoppelt ist und damit eine sich einstellende Eigendrehung der Innenhülse unabhängig von der Bewegung der mit der Gehäuseinnenwand in Berührung kommenden Außenhülse ist, die bezüglich einer Eigenrotation um ihre Achse blockiert ist.Accordingly, the inner sleeve carrying the nozzle is sealed off from the amount of water rotating in the nozzle housing and comes into contact only with the water entering the inner sleeve and leading from the inner sleeve to the nozzle, which also facilitates the rectification of the water fed to the nozzle and the effectiveness of a rectifier increases, which is arranged on the input side, for example, in the inner sleeve. It is essential that the movement of the inner sleeve is decoupled from the movement of the outer sleeve and thus an adjusting self-rotation of the inner sleeve is independent of the movement of coming into contact with the housing inner wall outer sleeve, which is blocked with respect to a self-rotation about its axis by the inventive design, the movement of the inner sleeve ,

Die Verdrehsicherung der Außenhülse wird bevorzugt durch eine gabelförmige Gestaltung des napflagerseitigen Endes der Außenhülse in Verbindung mit gehäusefesten, zwischen die Gabelelemente eingreifenden Stegen oder dadurch realisiert, daß eine Außenhülse mit im wesentlichen linsenförmiger Querschnittsform verwendet wird, deren Außenkontur der Innenkontur des Düsengehäuses angepaßt ist, so daß aufgrund der formschlüssigen Anlage der Außenhülse an der Gehäuseinnenwand eine Eigenrotation der Außenhülse um ihre Achse verhindert wird.The rotation of the outer sleeve is preferably realized by a fork-shaped design of the napflagerseitigen end of the outer sleeve in conjunction with housing fixed between the fork elements engaging webs or the fact that an outer sleeve is used with substantially linsenförmiger cross-sectional shape whose outer contour of the inner contour of the nozzle housing is adapted that due to the positive engagement of the outer sleeve on the housing inner wall a self-rotation of the outer sleeve is prevented about its axis.

Besonders vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.Particularly advantageous embodiments of the invention are specified in the subclaims.

Die Erfindung sowie durch die Erfindung erzielte Vorteile werden nachfolgend anhand von Ausführungsbeispielen unter Bezugnahme auf die Zeichnung erläutert; in der Zeichnung zeigt:

Fig. 1
eine schematische Axialschnittdarstellung durch eine erste Ausführungsform einer erfindungsgemäßen Rotordüse,
Fig. 2
eine schematische Axialschnittdarstellung durch eine zweite Ausführungsform einer erfindungsgemäßen Rotordüse,
Fig. 3
eine schematische Axialschnittdarstellung einer dritten Ausführungsform einer Rotordüse nach der Erfindung mit separater Schnittdarstellung entsprechend der Linie A-B, und
Fig. 4
eine schematische Axialschnittdarstellung einer vierten Ausführungsform einer erfindungsgemäßen Rotordüse.
The invention and advantages achieved by the invention are explained below with reference to embodiments with reference to the drawing; in the drawing shows:
Fig. 1
FIG. 2 a schematic axial section through a first embodiment of a rotor nozzle according to the invention, FIG.
Fig. 2
a schematic axial section through a second embodiment of a rotor nozzle according to the invention,
Fig. 3
a schematic axial sectional view of a third embodiment of a rotor nozzle according to the invention with a separate sectional view corresponding to the line AB, and
Fig. 4
a schematic axial section of a fourth embodiment of a rotor nozzle according to the invention.

Die Rotordüse nach Fig. 1 umfaßt ein kegelförmiges Düsengehäuse 1 mit einem einlaßseitig gelegenen zylindrischen Ansatz, in dem ein Abschlußteil abgedichtet angeordnet ist, das eine Einlaßöffnung aufweist, über die die unter Druck stehende Reinigungsflüssigkeit bzw. Wasser tangential in den Gehäuseinnenraum eingeleitet wird. Diese im Gehäuseinnenraum rotierende Flüssigkeit nimmt den Rotor 4 mit bzw. setzt diesen Rotor 4 in Drehung und strömt durch den Rotor 4 über eine Düse 6 zur Auslaßöffnung 3.The rotor nozzle according to Fig. 1 comprises a conical nozzle housing 1 with an inlet side cylindrical approach, in which a sealing member is arranged sealed, having an inlet opening through which the pressurized cleaning liquid or water is introduced tangentially into the housing interior. This rotating fluid in the housing interior takes the rotor 4 with or sets this rotor 4 in rotation and flows through the rotor 4 via a nozzle 6 to the outlet port 3rd

Der Rotor 4 besteht aus einer Innenhülse 15 und einer Außenhülse 16, wobei die Innenhülse 15 relativ zur Außenhülse 16 drehbar ist und die Düse 6 trägt, welche in einem Napflager 5 abgestützt ist.The rotor 4 consists of an inner sleeve 15 and an outer sleeve 16, wherein the inner sleeve 15 is rotatable relative to the outer sleeve 16 and carries the nozzle 6, which is supported in a cup bearing 5.

Zur Erleichterung der relativen Verdrehbarkeit von Innenhülse 15 und Außenhülse 16 liegt die Außenhülse 16 nicht vollflächig an der Innenhülse 15 an, sondern lediglich in gegenseitig beabstandeten, relativ kleinflächigen Lagerbereichen 20.To facilitate the relative rotatability of inner sleeve 15 and outer sleeve 16, the outer sleeve 16 is not the entire surface of the inner sleeve 15, but only in mutually spaced, relatively small-scale storage areas 20th

Während die Innenhülse 15 aus Metall, beispielsweise Messing, bestehen kann, wird für die Außenhülse 16 vorzugsweise ein elastisch komprimierbares Material, z.B. ein Kunststoffmaterial oder Gummimaterial verwendet.While the inner sleeve 15 may be made of metal, such as brass, it is preferable for the outer sleeve 16 to be an elastically compressible material, e.g. a plastic material or rubber material used.

In der Innenhülse 15 ist zweckmäßigerweise einlaßseitig im Strömungskanal 13 ein Strömungsgleichrichter angeordnet.In the inner sleeve 15, a flow rectifier is expediently arranged on the inlet side in the flow channel 13.

Das Napflager 5 ist in einem Lageraufnahmeteil 7 aus Kunststoffmaterial ausgebildet, das abdichtend in das Düsengehäuse 1 eingesetzt ist und zum Gehäuseinnenraum 12 hin einen Führungsansatz 11 aufweist, der außenseitig kugelkalottenförmig gestaltet ist und vom komplementär geformte Ende der Außenhülse 16 umgriffen ist. Zwischen diesem Führungsansatz 11 und der Außenhülse ist ferner eine ein Drehen der Außenhülse 14 um deren Achse 17 verhindernde Blockiereinrichtung vorgesehen.The cup bearing 5 is formed in a bearing receiving part 7 made of plastic material, which is sealingly inserted into the nozzle housing 1 and the housing interior 12 towards a guide lug 11 which is externally formed kugelkalottenförmig and the complementary shaped end of the outer sleeve 16 is encompassed. Between this guide lug 11 and the outer sleeve is further provided a rotating the outer sleeve 14 about the axis 17 preventing blocking.

Aufgrund der geschilderten Ausgestaltung kann der Rotor 4 von der im Gehäuseinneren 12 rotierenden Flüssigkeit in eine Umlaufbewegung unter Anlage an der Gehäuseinnenwand versetzt werden, so daß ein kegelförmiges Spritzbild entsteht. Die sich im Betrieb der Rotordüse einstellende Eigendrehung der Düse 6 bzw. der diese Düse halternden Innenhülse 15 ist von der Rotationsbewegung der Reinigungsflüssigkeit bzw. des Wassers im Gehäuseinnenraum 12 völlig entkoppelt, da die Außenhülse 16 als Abschirmung wirkt und die Reinigungsflüssigkeit bzw. das Wasser lediglich axial durch die Innenhülse in Richtung der Düse 6 strömt und somit keine tangentiale Antriebskomponente auf die Innenhülse 15 wirkt.Due to the described embodiment, the rotor 4 of the rotating fluid inside the housing 12 in a circumferential movement under Plant to be displaced on the housing inner wall, so that a conical spray pattern is formed. The self-rotation of the nozzle 6 or the nozzle holding this nozzle during operation of the rotor nozzle is completely decoupled from the rotational movement of the cleaning liquid or the water in the housing interior 12, since the outer sleeve 16 acts as a shield and the cleaning liquid or the water only axially flows through the inner sleeve in the direction of the nozzle 6 and thus no tangential drive component acts on the inner sleeve 15.

Zu erwähnen ist auch, daß durch den Eingriff des napflagerseitigen Endes der Außenhülse 16 in den Bereich zwischen dem Führungsansatz 11 und der diesem gegenüberliegenden Gehäuse-Führungswand 9 eine Verbesserung des Anlaufverhaltens dergestalt erreicht wird, daß die Düse unmittelbar nach Betriebsbeginn zentriert im Napflager anliegt und damit durch Fehlausrichtung bedingte Verschleißeffekte weitestgehend ausgeschaltet werden.It should also be mentioned that an improvement of the startup behavior is achieved by the engagement of the napflagerseitigen end of the outer sleeve 16 in the region between the guide lug 11 and this opposite housing guide wall 9 that the nozzle rests centered in the cup bearing immediately after start of operation and thus caused by misalignment wear effects are largely eliminated.

Wichtig ist ferner, daß auch dann, wenn die Düse 6 bzw. der Rotor 4 unter einem größeren Winkel zur Achse steht, keine Gefahr besteht, daß die Düse 6 das Napflager verläßt. Die Düse 6 wird vielmehr durch die vorgesehene Konstruktion im Lager gehalten.It is also important that even if the nozzle 6 and the rotor 4 is at a larger angle to the axis, there is no danger that the nozzle 6 leaves the cup bearing. The nozzle 6 is held in the camp rather by the design provided.

Durch die Wahl eines geeignet kompressiblen und/oder bezüglich der Gehäuseinnenwand eine vorgebbare Reibungswirkung aufweisenden Materials für die Außenhülse 16 kann ein definiertes Drehzahlverhalten des Rotors 4 vorgegeben werden, und zwar unter Gewährleistung der stets gegebenen bewegungsmäßigen Entkopplung der Innenhülse 15.By selecting a suitably compressible and / or with respect to the housing inner wall a predetermined friction material having material for the outer sleeve 16, a defined speed behavior of the rotor 4 can be specified, while ensuring the always given movement decoupling of the inner sleeve 15th

Die Ausführungsvariante nach Fig. 2 zeigt eine konkrete Realisierung der bereits im Zusammenhang mit Fig. 1 erwähnten Drehblockierung der Außenhülse 16. Dazu sind am napflagerseitigen Ende der Außenhülse 16 Gabelelemente 18 ausgebildet, zwischen die Stege 19 eingreifen, die fest mit dem Gehäuse 1 und vorzugsweise mit dem Führungsansatz 11 verbunden sind. Diese Drehblockierungselemente beeinträchtigen den Umlauf des Rotors nicht, verhindern jedoch ein Drehen der Außenhülse 16 um deren Achse.2 shows a concrete realization of the already mentioned in connection with FIG. 1 rotational blocking of the outer sleeve 16. For this purpose, 16 fork elements 18 are formed on the napflagerseitigen end of the outer sleeve, engage between the webs 19, fixed to the housing 1 and preferably are connected to the guide lug 11. These rotational blocking elements do not affect the rotation of the rotor, but prevent rotation of the outer sleeve 16 about its axis.

Ansonsten unterscheidet sich diese Ausführungsvariante von der Ausführungsform nach Fig. 1 im wesentlichen dadurch, daß die Außenhülse 16 nur auf einem Teilbereich ihrer Länge an der Innenwandung des Gehäuses 1 zur Anlage kommt, und zwar über ein eingesetztes Hülsenteil 21 aus einem elastisch kompressiblen Material. Dieses Hülsenteil 21 steht über die Außenkontur der eigentlichen Außenhülse 16 etwas vor. Dieses aus elastischem Material bestehende Hülsenteil 21 kann fest mit der Außenhülse 16 verbunden oder lose in einer entsprechenden Ausnehmung gelagert sein, so daß nicht nur eine Relativverdrehung zwischen der Innenhülse 15 und der Außenhülse 16, sondern auch gegebenenfalls noch eine Relativverdrehung zwischen Außenhülse 16 und Hülsenteil 21 möglich ist.Otherwise, this embodiment differs from the embodiment of FIG. 1 essentially in that the outer sleeve 16 comes to rest only on a portion of its length on the inner wall of the housing 1, via an inserted sleeve member 21 made of an elastically compressible material. This sleeve member 21 is about the outer contour of the actual outer sleeve 16 before something. This consisting of elastic material sleeve member 21 may be fixedly connected to the outer sleeve 16 or mounted loosely in a corresponding recess, so that not only a relative rotation between the inner sleeve 15 and the outer sleeve 16, but also possibly a relative rotation between outer sleeve 16 and sleeve member 21st is possible.

Bei der Ausführungsform nach Fig. 3 ist die Außenhülse 16 gegen Eigenrotation nicht im Bereich des Napflagers blockiert, sondern diese Blockierung erfolgt über die Wahl einer linsenförmigen Querschnittsform 22 für die Außenhülse 16, wie dies die Schnittdarstellung entsprechend der Linie A-B zeigt.In the embodiment of Fig. 3, the outer sleeve 16 is not blocked against self-rotation in the region of the cup bearing, but this blockage is via the choice of a lenticular cross-sectional shape 22 for the outer sleeve 16, as shown in the sectional view corresponding to the line AB.

Aufgrund dieser Querschnittsgestaltung der Außenhülse 16 wird nicht nur ein Drehen dieser Hülse um ihre Achse verhindert, sondern es wird dadurch auch eine vergrößerte und entsprechend der jeweiligen Querschnittsform vorgebbare Anlagefläche der Außenhülse 16 relativ zur Innenwand des Gehäuses 1 geschaffen, wodurch ein weiterer Parameter zur Festlegung des gewünschten Drehzahlverhaltens zur Verfügung steht.Due to this cross-sectional configuration of the outer sleeve 16 not only a rotation of this sleeve is prevented about its axis, but it is thereby also provided an enlarged and predetermined according to the respective cross-sectional shape contact surface of the outer sleeve 16 relative to the inner wall of the housing 1, whereby a further parameter for determining the desired speed behavior is available.

Bei der Ausführungsform nach Fig. 4 ist unter Beibehaltung des Entkopplungsprinzips zwischen Innenhülse und Außenhülse des Rotors eine mehrteilige Außenhülse vorgesehen. Der mit dem napflagerseitigen Führungsansatz 11 zusammenwirkende Teil der Außenhülse ist dabei als separates Lagerteil 24 ausgebildet, daß unter Vorspannung einer Feder 23 steht. Auf diese Weise wird der definierte Formschluß im Kugelkalottenbereich zwischen Führungsansatz 11 und Lagerteil 4 auch dann unverändert beibehalten, wenn im Bereich des Napflagers Verschleiß auftritt. Dies führt dazu, daß praktisch zwei relativ zueinander verschiebbare Paßlager vorliegen, nämlich das Paßlager zwischen Düse und Napflager und das Paßlager zwischen Lagerteil 24 und Führungsansatz 11.In the embodiment according to FIG. 4, a multipart outer sleeve is provided while maintaining the decoupling principle between inner sleeve and outer sleeve of the rotor. The cooperating with the napflagerseitigen guide projection 11 part of the outer sleeve is formed as a separate bearing part 24 that is under bias of a spring 23. In this way, the defined positive engagement in Kugelkalottenbereich between guide projection 11 and bearing part 4 is also maintained unchanged when wear occurs in the region of the cup bearing. This leads to the fact that there are practically two sliding bearings which can be displaced relative to one another, namely the mating bearing between nozzle and cup bearing and the mating bearing between bearing part 24 and guide lug 11.

Im unteren Bereich des Rotors 4 ist ein Außenhülsenteil 25 auf der Innenhülse 15 vorgesehen, das Aufnahmeringbereiche für gegenseitig beabstandete Stützringe 26 aufweist. Das Außenhülsenteil 25 ist auf der Innenhülse 15 drehbar gelagert, und die Stützringe 16, die aus komprimierbaren Material bestehen können, sind in den zugehörigen Ringaufnahmen entweder fest oder ebenfalls drehbar angeordnet. Der in den Ausführungsformen nach den Fig. 1 und 3 ausdrücklich zeichnerisch gezeigte Spalt 27 ist in mehr oder weniger stark ausgeprägter Form auch bei den üblichen Ausführungsvarianten zwischen Innenhülse und Außenhülse vorhanden, um die relative Verdrehbarkeit sicherzustellen.In the lower region of the rotor 4, an outer sleeve part 25 is provided on the inner sleeve 15, the receiving ring portions for mutually spaced support rings 26 has. The outer sleeve part 25 is rotatably mounted on the inner sleeve 15, and the support rings 16, which may consist of compressible material, are either fixed or rotatably arranged in the associated ring receptacles. The explicitly shown in the embodiments of FIGS. 1 and 3 gap 27 is in more or less pronounced form even in the usual variants between inner sleeve and outer sleeve available to ensure the relative rotatability.

Nach einer weiteren Ausführungsvariante der Erfindung, die insbesondere für den preiswerten Hobbybereich bestimmt ist, wird die Verdrehbarkeit der Außenhülse um ihre Achse vorzugsweise unter Verwendung einer Kabelfixierung analog Fig. 2 verhindert, aber es wird gleichzeitig die relative Verdrehbarkeit zwischen Außenhülse und Innenhülse nicht realisiert, sondern bezüglich dieser beiden Hülsen eine relative Unverdrehbarkeit vorgesehen, die beispielsweise durch Einpressen oder eine sonstige Klemmfixierung zwischen Innen- und Außenhülse erreicht wird.According to a further embodiment of the invention, which is intended in particular for the low-cost hobby area, the rotatability of the outer sleeve about its axis is preferably prevented using a cable fixation analogous to FIG. 2, but it is at the same time the relative rotatability between the outer sleeve and inner sleeve not realized, but with respect to these two sleeves provided a relative Unverdrehbarkeit, which is achieved for example by pressing or other clamping fixation between the inner and outer sleeve.

Claims (12)

  1. Rotor nozzle, in particular for a high pressure cleaning apparatus, comprising a nozzle housing (1) which has an inlet opening (2) at its one axial end, in particular a central inlet opening, an outlet opening (3) for the cleaning fluid at the other end and also, in the nozzle housing (1), a runner or rotor (4) which is inclined relative to the longitudinal axis of the nozzle housing (1), which is rotationally driven and which rolls off on the inner wall of the housing, with a nozzle (6) through which cleaning fluid flows being provided in the rotor and with the end of the nozzle facing the outlet opening (3) being movably supported in a cup bearing (5), wherein the rotor (4) comprises an outer sleeve (16) and an inner sleeve (15) concentric thereto which holds the nozzle (6) and is at least rotationally movable relative to the outer sleeve (16), with the inner sleeve (15) being decoupled from the rotational movement of the cleaning fluid in the nozzle housing (1) by the outer sleeve (16),
    characterised in that the outer sleeve (16) is blocked against self-rotation about its axis (17).
  2. Rotor nozzle in accordance with claim 1, characterised in that the outer sleeve (16) engages at the cup bearing side over a spherically shaped guide projection (11) and is matched to it in a complementary manner, in particular at the inner side; and in that a means providing security against rotation is provided between this guide projection (11) and the outer sleeve (16).
  3. Rotor nozzle in accordance with claim 2, characterised in that the means providing security against rotation is formed by a fork-like design of the end of the outer sleeve (16) in conjunction with webs (19) of the guide projection (11) engaging between the fork elements (18).
  4. Rotor nozzle in accordance with claim 1, characterised in that the outer sleeve (16) consists of a resilient material.
  5. Rotor nozzle in accordance with claim 1, characterised in that the outer sleeve (16) is supported on the inner sleeve (15) via ring-like bearing regions (20).
  6. Rotor nozzle in accordance with claim 1, characterised in that the outer sleeve (16) is of metallic design and is provided at the outside with a sleeve part (21) of resilient material, in particular rubber, which is firmly connected to it and which preferably projects beyond the contour of the outer sleeve (16).
  7. Rotor nozzle in accordance with claim 6, characterised in that the resilient sleeve part (21) is provided in the lower region of the outer sleeve (16) and only extends over a part region of the length of the outer sleeve (16).
  8. Rotor nozzle in accordance with claim 1, characterised in that, instead of the means providing security against rotation at the cup bearing side, a means providing security against rotation realised by the cross-sectional shape of the outer sleeve (16) is provided.
  9. Rotor nozzle in accordance with claim 8, characterised in that the outer sleeve (16) has a lenticular cross-sectional shape (22) and the outer contour of the lens is matched to the inner contour of the nozzle housing (1).
  10. Rotor nozzle in accordance with claim 1, characterised in that the outer sleeve (16) is at least of two-part design and has at the cup bearing side a bearing part (24) which stands under the prestress of a spring (23) and which is axially displaceable on the inner sleeve (15).
  11. Rotor nozzle in accordance with claim 10, characterised in that an outer sleeve part (25) at the inflow side has at least two mutually spaced apart support rings (26) consisting of elastically compressible material.
  12. Rotor nozzle, in particular for high pressure cleaning apparatus comprising a nozzle housing (1) which has an inlet opening (2) at its one axial end, in particular a central inlet opening, an outlet opening (3) for the cleaning fluid at the other end and also, in the nozzle housing (1), a runner or rotor (4) which is inclined relative to the longitudinal axis of the nozzle housing, which is rotationally driven and which rolls off on the inner wall of the housing, with a nozzle (6) through which cleaning fluid flows being provided in the rotor and with the end of the nozzle facing the outlet opening (3) being movably supported in a cup bearing (5), wherein the rotor (4) comprises an outer sleeve (16) and an inner sleeve (15) concentric thereto which holds the nozzle (6) and is rotationally fixedly connected to the outer sleeve (16),
    characterised in that the outer sleeve (16) is blocked against self rotation about its axis (17), in particular by means of a fork arrangement at the cup bearing side.
EP19990101478 1998-01-27 1999-01-27 Rotor nozzle Expired - Lifetime EP0931594B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803035 1998-01-27
DE1998103035 DE19803035A1 (en) 1998-01-27 1998-01-27 Rotor nozzle

Publications (3)

Publication Number Publication Date
EP0931594A2 EP0931594A2 (en) 1999-07-28
EP0931594A3 EP0931594A3 (en) 2004-03-24
EP0931594B1 true EP0931594B1 (en) 2006-05-03

Family

ID=7855784

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990101478 Expired - Lifetime EP0931594B1 (en) 1998-01-27 1999-01-27 Rotor nozzle

Country Status (2)

Country Link
EP (1) EP0931594B1 (en)
DE (1) DE19803035A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009020409A1 (en) * 2009-05-08 2010-11-18 Jäger, Anton Rotary nozzle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1920847B1 (en) * 2006-11-09 2017-04-05 Nilfisk A/S Rotating nozzle for a high-pressure cleaning device
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

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3902478C1 (en) 1989-01-27 1990-07-19 Josef 7918 Illertissen De Kraenzle
DE4014954C1 (en) * 1990-05-10 1991-05-23 Suttner Gmbh & Co Kg, 4800 Bielefeld, De Housing for high pressure cleaning water jet - has internal angled nozzle which provides rotary action under pressure of water flow
DE9108507U1 (en) * 1991-07-10 1991-11-07 Anton Jaeger Montagebau, 7913 Senden, De
DE4419404C2 (en) 1994-06-03 2001-06-28 Anton Jaeger Rotor nozzle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009020409A1 (en) * 2009-05-08 2010-11-18 Jäger, Anton Rotary nozzle
US8540170B2 (en) 2009-05-08 2013-09-24 Anton Jaeger Rotor nozzle

Also Published As

Publication number Publication date
DE19803035A1 (en) 1999-07-29
EP0931594A2 (en) 1999-07-28
EP0931594A3 (en) 2004-03-24

Similar Documents

Publication Publication Date Title
EP3173675B1 (en) Hose connection
EP3513009B1 (en) Sanitary outlet fitting and faucet
DE3404816C2 (en) Sealing device
DE4239542A1 (en) Rotor nozzle for a high pressure cleaning device
DE2631296A1 (en) END SURFACE SEAL
EP1569755B1 (en) Nozzle assembly for a high-pressure cleaning device
EP1559943B1 (en) Connector for for fluid pipes
DE4411438A1 (en) Swiveling spray nozzle arrangement
DE10008722B4 (en) connecting element
EP2092970B1 (en) Filter device for filtering a liquid
DE10213912B4 (en) Fluid spray gun
EP2251091B1 (en) Rotor nozzle
EP0931594B1 (en) Rotor nozzle
DE2731313C2 (en) Sealing device for roller bearings
EP0941422B1 (en) Disk brake
DD271066A5 (en) SEALING DEVICE FOR ROLLER BEARINGS
EP0444523A2 (en) Valve gun for a high-pressure cleaning device as well as a hose coupling, in particular for such a valve gun
EP2882538B1 (en) Rotor nozzle for a high-pressure cleaning device
DE4414243B4 (en) ball valve
EP1245877B1 (en) Mechanical seal arrangement
EP0117504A2 (en) Outlet for sanitary items such as wash basins, zincs, baths or the like
DE102007059329A1 (en) Plug-in connector for piping, has spring unit arranged between radial shoulder and outer part, and retaining unit pushed out from recess at spigot or in opening of outer part in locking position, so that spigot is detached from outer part
EP0734815B1 (en) Pulling tool for removing bearings
EP0891816B1 (en) Rotor nozzle
WO2000003171A1 (en) Locked socket joint

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17P Request for examination filed

Effective date: 20040909

AKX Designation fees paid

Designated state(s): FR GB IT

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): FR GB IT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20060503

Ref country code: GB

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060503

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20060503

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20070206

EN Fr: translation not filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070309

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060503

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20090128

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100127