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EP1920847B1 - Buse rotative pour appareil de nettoyage à haute pression - Google Patents

Buse rotative pour appareil de nettoyage à haute pression 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
German (de)
English (en)
Other versions
EP1920847A1 (fr
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/fr
Priority to CN2007800444941A priority patent/CN101594941B/zh
Priority to PCT/IB2007/003313 priority patent/WO2008056218A2/fr
Publication of EP1920847A1 publication Critical patent/EP1920847A1/fr
Application granted granted Critical
Publication of EP1920847B1 publication Critical patent/EP1920847B1/fr
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
    • B05B3/0417—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 comprising a liquid driven rotor, e.g. a turbine
    • B05B3/0429—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 comprising a liquid driven rotor, e.g. a turbine the rotating outlet elements being directly attached to the rotor or being an integral part thereof
    • B05B3/043—Rotor nozzles

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. Buse rotative (1) pour appareil de nettoyage à haute pression comprenant un boîtier de buse (2) fourni avec une ouverture de sortie de fluide comprenant un siège (4) coopérant avec une première partie d'extrémité (8) d'un élément de buse (3) de manière à ce que l'élément de buse (3) peut être subi à un mouvement pivotant et de rotation par rapport à un axe longitudinal (9) à travers le boîtier de buse, où au moins une entrée de fluide (5) au boîtier de buse (2) fournissant un mouvement de rotation du fluide dans ledit boîtier de buse (2),
    caractérisée en ce que le boîtier de buse (2) comprend une section de paroi tronconique (6) et ledit élément de buse (3) comprend une surface de roulement (7), ladite surface de roulement (7) de l'élément de buse (3) roulant sur ladite section de paroi tronconique (6) et restant en contact de ligne sur cette dernière le long de sa génératrice.
  2. Buse rotative (1) pour appareil de nettoyage à haute pression selon la revendication 1, caractérisée en ce que ladite surface de roulement (7) d'élément de buse (3) est une surface cylindrique.
  3. Buse rotative (1) pour appareil de nettoyage à haute pression selon l'une des revendications 1 ou 2, caractérisée en ce que le coéfficient de friction dynamique entre la surface de roulement (7) d'élément de buse (3) et la section de paroi tronconique (6) du boîtier de buse (2) est de 0,22 ou moins.
  4. Buse rotative (1) pour appareil de nettoyage à haute pression selon l'une quelconque des revendications précédentes, caractérisée en ce que l'entrée de fluide (5) est dirigée dans une direction dans un plan qui est perpendiculaire à l'axe longitudinal (9) à travers le boîtier de buse (2).
  5. Buse rotative (1) pour appareil de nettoyage à haute pression selon l'une quelconque des revendications précédentes, caractérisée en ce que ledit élément de buse (3) comprend un rectificateur (11) à travers lequel le liquide de nettoyage entre dans une chambre (13) d'élément de buse, ledit rectificateur (11) fournissant un écoulement plus laminaire du fluide dans ladite chambre (13).
EP06023324.4A 2006-11-09 2006-11-09 Buse rotative pour appareil de nettoyage à haute pression Active EP1920847B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP06023324.4A EP1920847B1 (fr) 2006-11-09 2006-11-09 Buse rotative pour appareil de nettoyage à haute pression
CN2007800444941A CN101594941B (zh) 2006-11-09 2007-11-01 用于高压清洗装置的旋转喷嘴
PCT/IB2007/003313 WO2008056218A2 (fr) 2006-11-09 2007-11-01 Buse rotative pour dispositif de nettoyage haute pression

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06023324.4A EP1920847B1 (fr) 2006-11-09 2006-11-09 Buse rotative pour appareil de nettoyage à haute pression

Publications (2)

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

Family

ID=37622257

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06023324.4A Active EP1920847B1 (fr) 2006-11-09 2006-11-09 Buse rotative pour appareil de nettoyage à haute pression

Country Status (3)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022128085A1 (fr) * 2020-12-16 2022-06-23 Alfred Kärcher SE & Co. KG Buse rotative pour dispositif de nettoyage haute pression

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
ES2603552T3 (es) 2010-11-04 2017-02-28 Gea Food Solutions Bakel B.V. Dispositivo de distribución de la masa y dispositivo de moldeo
PL2468104T3 (pl) 2010-12-23 2019-02-28 Gea Food Solutions Bakel B.V. Sposób czyszczenia bębna formującego
ES2541841T3 (es) 2011-01-25 2015-07-27 Gea Food Solutions Bakel B.V. Cadena de producción de alimentos
CN103501620B (zh) 2011-02-10 2016-12-07 Gea食品策划巴克尔公司 食品成型滚筒
CA2841854C (fr) 2011-07-25 2017-08-22 Gea Food Solutions Bakel B.V. Appareil de formation d'aliments a element de distribution d'aliments
EP2804484B2 (fr) 2012-01-20 2024-02-14 GEA Food Solutions Bakel B.V. Système et procedé de fourniture en masse
RU2682199C2 (ru) 2013-02-01 2019-03-15 Геа Фуд Сольюшнс Бакел Б.В. Принцип формования пищевого продукта
US9861108B2 (en) 2013-05-03 2018-01-09 Gea Food Solutions Bakel B.V. Sealing member for a food forming drum
SG11201705756TA (en) * 2015-02-23 2017-08-30 Stoneage Inc Internally adjustable spray angle rotary nozzle
DK3646953T3 (en) * 2018-11-05 2021-10-11 P A S P A Rotary jet nozzle assembly for pressure cleaning devices
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

Family Cites Families (4)

* Cited by examiner, † Cited by third party
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
DE60228689D1 (de) * 2001-02-27 2008-10-16 Toto Ltd Fluidspritzvorrichtung
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 (fr) * 2020-12-16 2022-06-23 Alfred Kärcher SE & Co. KG Buse rotative pour dispositif de nettoyage haute pression

Also Published As

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

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