EP1920847B1 - Rotordüse für ein Hochdruckreinigungsgerät - Google Patents

Rotordüse für ein Hochdruckreinigungsgerät Download PDF

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Publication number
EP1920847B1
EP1920847B1 EP06023324.4A EP06023324A EP1920847B1 EP 1920847 B1 EP1920847 B1 EP 1920847B1 EP 06023324 A EP06023324 A EP 06023324A EP 1920847 B1 EP1920847 B1 EP 1920847B1
Authority
EP
European Patent Office
Prior art keywords
nozzle
house
nozzle member
cleaning device
fluid
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.)
Active
Application number
EP06023324.4A
Other languages
English (en)
French (fr)
Other versions
EP1920847A1 (de
Inventor
Martin With Agerholm Jensen
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.)
Nilfisk AS
Original Assignee
Nilfisk AS
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 Nilfisk AS filed Critical Nilfisk AS
Priority to EP06023324.4A priority Critical patent/EP1920847B1/de
Priority to PCT/IB2007/003313 priority patent/WO2008056218A2/en
Priority to CN2007800444941A priority patent/CN101594941B/zh
Publication of EP1920847A1 publication Critical patent/EP1920847A1/de
Application granted granted Critical
Publication of EP1920847B1 publication Critical patent/EP1920847B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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 present invention relates generally to nozzles for high-pressure cleaning devices and particularly to such nozzles provided with means making the jet of pressure fluid leaving the nozzle rotate relative to the main body of the nozzle of the cleaning device.
  • EP 0 879 644 B1 describes a rotating nozzle section of a cleaning device comprising a cylindrical nozzle house chamber in which there is provided a nozzle member, the exit end of which is in engagement with a seat in such a manner that the nozzle member can undergo pivotal and rotational movement within the cylindrical nozzle house chamber under the influence of high-pressure fluid circulating in the chamber.
  • the nozzle member comprises a frusto-conical portion, the outer surface of which rests against the inner wall of a corresponding portion of the cylindrical nozzle house chamber, when the nozzle member is rotating.
  • the fluid inlet to the nozzle house chamber is through at least one tangential conduit, the direction of which has an axial component, the tangential direction providing a rotational movement of the fluid in the nozzle house chamber.
  • the rotational velocity of the nozzle member about its longitudinal axis is controlled by the frictional force between the surface of the frusto-conical portion of the nozzle member and the corresponding cylindrical portion of the inner wall of the nozzle house chamber, and this document indicates specific materials suitable for these parts and specific coefficients of friction for obtaining a desired rotational velocity.
  • a rotating nozzle for a high-pressure cleaning device as defined in claim 1.
  • a possible casting of the nozzle house may advantageously use a core, which is easily pulled out of the cast member in contrast to pulling out such a core when the chamber is cylindrical. If the nozzle house is manufactured by cutting by stock removal, this conical geometry provides the advantage that the cut-off material is easier removed backwards out of the nozzle house during machining, this being an advantage whether using plastic or metallic materials for the nozzle house.
  • the geometry of the nozzle member is less critical whether manufactured by casting or cutting by stock removal.
  • a further advantage is provided by having the reaction force between the nozzle member and the nozzle house directed with a component in a direction reducing the force provide by the pressure in the nozzle house towards the seat in which the nozzle member is positioned during operation.
  • FIG. 1 shows a longitudinal cross-sectional view of the rotating nozzle for a high-pressure cleaning device according to a preferred embodiment of the invention generally indicated by reference numeral 1.
  • the rotating nozzle 1 comprises a nozzle house 2 forming a body of revolution about a longitudinal axis 9.
  • the nozzle house 2 is provided with at least one fluid inlet 5, through which cleaning fluid under pressure is lead into the nozzle house chamber 13.
  • the fluid inlet 5 is directed in a plane perpendicular to the longitudinal axis 9 of the nozzle house 2, and in a slightly tangential direction in relation to the nozzle house chamber 13, whereby the fluid in the nozzle house chamber 13 is forced to a rotational movement in the nozzle house chamber 13.
  • Other possible orientations of the fluid inlet are possible, as long as the resulting rotational movement of the fluid in the nozzle chamber 13 is provided.
  • a hollow nozzle member 3 is pivotable and rotationally guided by engagement between a first end portion 8 of the nozzle member 3 and a corresponding seat 4.
  • This seat 4 is provided at a fluid exit opening 14 of the nozzle house 2 longitudinally opposite the fluid inlet 5.
  • the nozzle member 3 comprises a substantially tubular rotational symmetrical body having a longitudinal axis 10.
  • the nozzle member 3 is provided with an Internal nozzle chamber at one longitudinal end terminated by a fluid outlet 12 provided in a rounded (spherical) portion for engagement with a similarly shaped inner portion of the seat 4.
  • This arrangement allows the nozzle member 3 to undergo pivotable and rotational movement relative to the seat 4 and hence to the nozzle house 2.
  • the fluid passing through the nozzle member 3 leaves the nozzle house chamber 13 through the fluid exit opening 14.
  • the longitudinal end of the nozzle member 3 opposite the first end portion 8 is provided with rectifier 11 for providing a more laminar flow of the fluid inside the nozzle house chamber 13.
  • the rectifier 11 can be considered a plug having a number of circular cylindrical openings therethrough, through which the fluid enters the nozzle house chamber 13.
  • the nozzle member 3 is provided with a rolling surface 7, which in the embodiments shown in figure 1 is a cylindrical surface.
  • the nozzle house 2 is provided with a corresponding frusto-conical wall section 6, and the rolling surface 7 and the frusto-conical wall section 6 are provided in such a way that the nozzle member 3 can perform a rolling movement with the rolling surface 7 in contact with the frusto-conical wall section 6 along its generatrix.
  • the rolling surface 7 may also be frusto-conical, narrowing towards first end portion 8 of the nozzle member 3, and the corresponding frusto-conical wall section 6 should thus be provided with an increased conicity in order to provide a contact between the rolling surface 7 and the frusto-conical wall section 6 along its generatrix.
  • cleaning fluid rotates within the nozzle house chamber 13 due to the tangential component of the fluid inlet opening 5 into said nozzle house chamber 13.
  • This fluid rotation causes the end of the nozzle member longitudinally opposite the first end portion 8 to rotate within the nozzle house chamber 13 along the frusto-conical wall section 6, providing line contact between said frusto-conical wall section 6 and the rolling surface 7 of the nozzle member 3.
  • the nozzle member is forced to undergo rotation in the opposite rotational direction about its longitudinal axis 10, due to friction at the contact between the frusto-conical wall section 6 and the rolling surface 7.
  • reaction force between the nozzle member 3 and the nozzle house i.e. the forces between the frusto-conical wall section 6 and the rolling surface 7, will have a component directed away from the first end portion 8 of the nozzle member 3 and thus decrease the force with which the nozzle member 3 is pressed against the seat 4 by the pressure in the nozzle house chamber 13.
  • a vast number of different materials may be chosen for the nozzle house 2 and the nozzle member 3, e.g. plastic materials, composite materials, ceramics, metals, such as brass. aluminum, stainless steel, etc., rubber and other suitable materials, possibly in combination, for parts of the nozzle house 2 and the nozzle member 3.
  • Suitable materials for the seat 4 in the nozzle house 2 and the end portion 8 of the nozzle member 3 could be ceramic materials or metallic materials in order to avoid problems with these elements due to wear.
  • Other parts of the rotating nozzle system 1 are chosen primarily in order to provide a simple processing and production of the individual parts.

Landscapes

  • Nozzles (AREA)
  • Cleaning In General (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Claims (5)

  1. Rotordüse (1) für ein Hochdruckreinigungsgerät umfassend ein Düsengehäuse (2), das mit einer Flüssigkeitsauslassöffnung versehen ist, umfassend einen Sitz (4), der mit einem ersten Endteil (8) eines Düsenelements (3) derart zusammenwirkt, dass das Düsenelement (3) einer Schwenk- und Drehbewegung relativ zu einer Längsachse (9) durch das Düsengehäuse unterzogen werden kann, wenigstens einem Flüssigkeitseinlass (5) zu dem Düsengehäuse (2), der eine Drehbewegung der Flüssigkeit in dem Düsengehäuse (2) bereitstellt,
    dadurch gekennzeichnet, dass das Düsengehäuse (2) einen kegelstumpfförmigen Wandbereich (6) umfasst, und das Düsenelement (3) eine Rollfläche (7) umfasst, wobei die Rollfläche (7) des Düsenelements (3) auf dem kegelstumpfförmigen Wandbereich (6) abrollt und mit Linienkontakt auf letzterem längs der Erzeugenden aufliegt.
  2. Rotordüse (1) für ein Hochdruckreinigungsgerät nach Anspruch 1, dadurch gekennzeichnet, dass die Rollfläche (7) des Düsenelements (3) eine zylindrische Oberfläche ist.
  3. Rotordüse (1) für ein Hochdruckreinigungsgerät nach Anspruch 1 oder Anspruch 2, dadurch gekennzeichnet, dass der dynamische Reibungskoeffizient zwischen der Rollfläche (7) des Düsenelements (3) und dem kegelstumpfförmigen Wandbereich (6) des Düsengehäuses (2) 0,22 oder weniger ist.
  4. Rotordüse (1) für ein Hochdruckreinigungsgerät nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Flüssigkeitseinlass (5) in einer Richtung in einer Ebene senkrecht zu der Längsachse (9) durch das Düsengehäuse (2) geleitet wird.
  5. Rotordüse (1) für ein Hochdruckreinigungsgerät nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das Düsenelement (3) einen Gleichrichter (11) umfasst, durch welchen die Reinigungsflüssigkeit in eine Kammer (13) des Düsenelements (3) eintritt, wobei der Gleichrichter (11) eine laminarere Strömung der Flüssigkeit in der Kammer (13) bereitstellt.
EP06023324.4A 2006-11-09 2006-11-09 Rotordüse für ein Hochdruckreinigungsgerät Active EP1920847B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP06023324.4A EP1920847B1 (de) 2006-11-09 2006-11-09 Rotordüse für ein Hochdruckreinigungsgerät
PCT/IB2007/003313 WO2008056218A2 (en) 2006-11-09 2007-11-01 Rotating nozzle for a high-pressure cleaning device
CN2007800444941A CN101594941B (zh) 2006-11-09 2007-11-01 用于高压清洗装置的旋转喷嘴

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06023324.4A EP1920847B1 (de) 2006-11-09 2006-11-09 Rotordüse für ein Hochdruckreinigungsgerät

Publications (2)

Publication Number Publication Date
EP1920847A1 EP1920847A1 (de) 2008-05-14
EP1920847B1 true EP1920847B1 (de) 2017-04-05

Family

ID=37622257

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06023324.4A Active EP1920847B1 (de) 2006-11-09 2006-11-09 Rotordüse für ein Hochdruckreinigungsgerät

Country Status (3)

Country Link
EP (1) EP1920847B1 (de)
CN (1) CN101594941B (de)
WO (1) WO2008056218A2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022128085A1 (de) * 2020-12-16 2022-06-23 Alfred Kärcher SE & Co. KG Rotordüse für ein hochdruckreinigungsgerät

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009023647A1 (de) 2009-05-25 2010-12-02 Alfred Kärcher Gmbh & Co. Kg Rotordüse für ein Hochdruckreinigungsgerät
EP2449893B1 (de) 2010-11-04 2016-08-17 GEA Food Solutions Bakel B.V. Masseverteilungsvorrichtung und Formvorrichtung
EP2468104B1 (de) 2010-12-23 2018-09-12 GEA Food Solutions Bakel B.V. Reinigungsverfahren für eine Formtrommel
PL2478771T3 (pl) 2011-01-25 2015-10-30 Gea Food Solutions Bakel Bv Linia produkcyjna do żywności
EP3446567A1 (de) 2011-02-10 2019-02-27 GEA Food Solutions Bakel B.V. Lebensmittelherstellungstrommel und verfahren zu ihrer herstellung
JP5946914B2 (ja) 2011-07-25 2016-07-06 ジーイーエー フード ソリューションズ バーケル ビー．ブイ． 食品塊供給部材を備えた食品成型装置
PL2804484T3 (pl) 2012-01-20 2019-09-30 Gea Food Solutions Bakel B.V. System i sposób zasilania masą
EP3398439A1 (de) 2013-02-01 2018-11-07 GEA Food Solutions Bakel B.V. Lebensmittelformungstrommel
US9861108B2 (en) 2013-05-03 2018-01-09 Gea Food Solutions Bakel B.V. Sealing member for a food forming drum
BR112017017166A2 (pt) * 2015-02-23 2018-04-03 Stoneage Inc bocal rotativo com ângulo de pulverização ajustável internamente
ES2965058T3 (es) * 2018-11-05 2024-04-10 P A S P A Conjunto de boquilla de chorro giratorio para dispositivos de limpieza a presión
CN110143187A (zh) * 2019-06-05 2019-08-20 苏州小老虎精密模具设备有限公司 全自动洗车机

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Publication number Priority date Publication date Assignee Title
IT1294433B1 (it) 1997-05-22 1999-03-24 Interpump Group S P A Lancia erogatrice a ugello rotante
DE19803035A1 (de) * 1998-01-27 1999-07-29 Anton Jaeger Rotordüse
CN1265891C (zh) * 2001-02-27 2006-07-26 东陶机器株式会社 流体喷出装置
US6766967B2 (en) * 2002-05-07 2004-07-27 Gp Companies, Inc. Magnet-driven rotary nozzle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022128085A1 (de) * 2020-12-16 2022-06-23 Alfred Kärcher SE & Co. KG Rotordüse für ein hochdruckreinigungsgerät

Also Published As

Publication number Publication date
EP1920847A1 (de) 2008-05-14
WO2008056218A2 (en) 2008-05-15
CN101594941B (zh) 2012-11-21
CN101594941A (zh) 2009-12-02
WO2008056218A3 (en) 2008-07-10

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