EP1183983A2 - Spraying device for a dishwasher - Google Patents

Spraying device for a dishwasher Download PDF

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Publication number
EP1183983A2
EP1183983A2 EP01112330A EP01112330A EP1183983A2 EP 1183983 A2 EP1183983 A2 EP 1183983A2 EP 01112330 A EP01112330 A EP 01112330A EP 01112330 A EP01112330 A EP 01112330A EP 1183983 A2 EP1183983 A2 EP 1183983A2
Authority
EP
European Patent Office
Prior art keywords
spray arm
spray
water
water inlet
dishwasher
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.)
Granted
Application number
EP01112330A
Other languages
German (de)
French (fr)
Other versions
EP1183983A3 (en
EP1183983B1 (en
Inventor
Karlheinz Kohles
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.)
AEG Hausgeraete GmbH
Original Assignee
AEG Hausgeraete GmbH
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
Priority claimed from DE2000139880 external-priority patent/DE10039880A1/en
Priority claimed from DE20014038U external-priority patent/DE20014038U1/en
Application filed by AEG Hausgeraete GmbH filed Critical AEG Hausgeraete GmbH
Publication of EP1183983A2 publication Critical patent/EP1183983A2/en
Publication of EP1183983A3 publication Critical patent/EP1183983A3/en
Application granted granted Critical
Publication of EP1183983B1 publication Critical patent/EP1183983B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/14Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
    • A47L15/18Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
    • A47L15/22Rotary spraying devices
    • A47L15/23Rotary spraying devices moved by means of the sprays

Definitions

  • Spray devices for dishwashers consist of a spray arm which is rotatable on the water inlet pipe, the so-called connecting tube is attached.
  • the water inlet is at the end of the connecting pipe the water jet is brought into the spray arm.
  • the spray arm is rotated to reach all dishes added. This rotation of the spray arm around the The axis of the water inlet is usually over a or several drive nozzles on the periphery of the spray arm lie and a water jet essentially tangential generate against the direction of rotation of the spray arm.
  • the object of the present invention is a drive to allow for a spray arm, so that on the conventional Drive nozzles completely or at least partially omitted and almost all of the water can be cleaned can be used.
  • This task is accomplished by a spray device for a dishwasher consisting of a spray arm that rotates is attached to a water inlet, the water inlet Has turbine blades, solved.
  • An advantageous embodiment of the invention consists in that mounted in the spray arm guide vanes (LS) This allows the efficiency with regard to the angular momentum increase further.
  • the spray arm can also have drive nozzles, which is advantageously smaller than before can be dimensioned.
  • FIG 1 shows a section through a Spray device of a dishwasher, which from the Connection pipe VR and the spray arm SA exists.
  • the Spray arm SA can be rotated around the in via a slide bearing GL usually angled perpendicularly from the connecting pipe VR Water inlet WE stored.
  • connection pipe VR at the end of the water inlet WE is located in the direction of the arrow in the water Spray arm pumped SA.
  • the rotation of the Spray arms around the axis A of the water inlet nozzle WE become conventional via one or more drive nozzles AD, which on the periphery of the spray arm SA and a water jet generate SA against the direction of rotation of the spray arm, realized.
  • turbine blades TS are in the area of the water inlet in which the water is sprayed into the spray arm SA, turbine blades TS provided, which is also in the plan view of FIG 2 are shown.
  • the turbine blades TS are arched here, but can also have a different shape.
  • the expert turbine technology will provide appropriate suggestions for Design of blade shapes for optimized operation receive. This also applies to the guide vanes LS. Important is only that the blades LS, TS are shaped so that the water flowing into the spray arm has a torque generated the spray arm.

Landscapes

  • Washing And Drying Of Tableware (AREA)

Abstract

The water inlet (WE) to the spray arm (SA) includes turbine blades (TS).

Description

Sprühvorrichtungen für Geschirrspülmaschinen bestehen aus einem Sprüharm, der drehbar an dem Wasserzuflußrohr, dem sogenannten Verbindungsrohr befestigt ist.Spray devices for dishwashers consist of a spray arm which is rotatable on the water inlet pipe, the so-called connecting tube is attached.

Über das Verbindungsrohr an dessen Ende sich der Wassereinlauf befindet wird der Wasserstrahl in den Sprüharm gebracht. Über den Sprüharm verteilt befinden sich Auslassdüsen über die das Wasser bzw. die Reinigungsflüssigkeit auf das im Geschirrkorb befindliche Geschirr gesprüht wird. Um alle Geschirrteile zu erreichen wird der Sprüharm in Drehbewegung versetzt. Diese Drehbewegung des Sprüharms um die Achse des Wassereinlaufs wird in der Regel über eine oder mehrere Antriebsdüsen die an der Peripherie des Sprüharms liegen und einen Wasserstrahl im wesentlichen tangential entgegen der Drehrichtung des Sprüharms erzeugen.The water inlet is at the end of the connecting pipe the water jet is brought into the spray arm. There are outlet nozzles distributed over the spray arm through which the water or the cleaning liquid the dishes in the crockery basket are sprayed. Around The spray arm is rotated to reach all dishes added. This rotation of the spray arm around the The axis of the water inlet is usually over a or several drive nozzles on the periphery of the spray arm lie and a water jet essentially tangential generate against the direction of rotation of the spray arm.

Bei den herkömmlichen Sprühvorrichtungen für Geschirrspüler sind die an der Peripherie vorgesehenen Antriebsdüsen nachteilig, da das aus ihnen austretende Wasser im wesentlichen nur zum Antrieb des Sprüharms benötigt wird und nicht für die Reinigung des Geschirrs zur Verfügung steht.With conventional spray devices for dishwashers the drive nozzles provided on the periphery are disadvantageous, because the water that escapes from them essentially is only required to drive the spray arm and not for cleaning of the dishes is available.

Insbesondere im Impulsbetrieb, d.h. im Betriebszustand, in dem mit relativ hohem Druck nur sehr kurzzeitig Wasser gesprüht wird, besteht bei herkömmlichen Sprühvorrichtungen der Nachteil, dass über die Antriebsdüsen kaum eine Drehbewegung einsetzt, weil der Wasserimpuls bereits nachgelassen hat, bevor der Drehimpuls richtig wirksam geworden ist. Especially in pulse mode, i.e. in the operating state, in sprayed with water at a relatively high pressure only for a very short time with conventional spraying devices the disadvantage that there is hardly any rotary movement via the drive nozzles starts because the water impulse has already subsided before the angular momentum has taken effect.

Aufgabe der vorliegenden Erfindung ist es, einen Antrieb für einen Sprüharm zu ermöglichen, so dass auf die herkömmlichen Antriebsdüsen ganz oder zumindest teilweise verzichtet werden kann und fast das gesamte Wasser zum Reinigen verwendet werden kann.The object of the present invention is a drive to allow for a spray arm, so that on the conventional Drive nozzles completely or at least partially omitted and almost all of the water can be cleaned can be used.

Diese Aufgabe wird durch eine Sprühvorrichtung für eine Geschirrspülmaschine bestehend aus einem Sprüharm, der drehbar an einem Wassereinlass angebracht ist, wobei der Wassereinlass Turbinenschaufeln aufweist, gelöst.This task is accomplished by a spray device for a dishwasher consisting of a spray arm that rotates is attached to a water inlet, the water inlet Has turbine blades, solved.

Eine vorteilhafte Ausgestaltung der Erfindung besteht darin, dass im Sprüharm Leitschaufeln (LS) angebracht sind.Damit läßt sich der Wirkungsgrad hinsichtlich des Drehimpulses weiter erhöhen.An advantageous embodiment of the invention consists in that mounted in the spray arm guide vanes (LS) This allows the efficiency with regard to the angular momentum increase further.

Zusätzlich dazu kann der Sprüharm noch Antriebsdüsen aufweisen, die vorteilhafterweise jedoch kleiner als bisher dimensioniert werden können.In addition, the spray arm can also have drive nozzles, which is advantageously smaller than before can be dimensioned.

Eine Ausbildung der Erfindung wird nachfolgend anhand der Zeichnung beschrieben. Dabei zeigen:

  • Figur 1 eine Schnittdarstellung einer Sprühvorrichtung
  • Figur 2 die Draufsicht gemäß Figur 1
  • An embodiment of the invention is described below with reference to the drawing. Show:
  • Figure 1 is a sectional view of a spray device
  • FIG. 2 shows the top view according to FIG. 1
  • Die Darstellung gemäß FIG 1 zeigt einen Schnitt durch eine Sprühvorrichtung einer Geschirrspülmaschine, die aus dem Verbindungsrohr VR und dem Sprüharm SA besteht. Der Sprüharm SA ist über ein Gleitlager GL drehbar um den in der Regel senkrecht vom Verbindungsrohr VR abgewinkelten Wassereinlass WE gelagert. The representation according to FIG 1 shows a section through a Spray device of a dishwasher, which from the Connection pipe VR and the spray arm SA exists. The Spray arm SA can be rotated around the in via a slide bearing GL usually angled perpendicularly from the connecting pipe VR Water inlet WE stored.

    Über das Verbindungsrohr VR an dessen Ende sich der Wassereinlass WE befindet wird Wasser in Pfeilrichtung in den Sprüharm SA gepumpt. Über den Sprüharm SA verteilt befinden sich Reinigungsdüsen RD mittels derer das Wasser bzw. die Reinigungsflüssigkeit auf das sich im Geschirrkorb befindliche Geschirr gesprüht wird. Die Drehbewegung des Sprüharms um die Achse A der Wassereinlaufdüse WE wird herkömmlich über eine oder mehrere Antriebsdüsen AD, die an der Peripherie des Sprüharms SA liegen und einen Wasserstrahl entgegen der Drehrichtung des Sprüharms SA erzeugen, realisiert.Via the connection pipe VR at the end of the water inlet WE is located in the direction of the arrow in the water Spray arm pumped SA. Spread over the spray arm SA cleaning nozzles RD by means of which the water or Cleaning liquid on the one in the crockery basket Dishes being sprayed. The rotation of the Spray arms around the axis A of the water inlet nozzle WE become conventional via one or more drive nozzles AD, which on the periphery of the spray arm SA and a water jet generate SA against the direction of rotation of the spray arm, realized.

    Erfindungsgemäß sind im Bereich des Wassereinlasses, in dem das Wasser in den Sprüharm SA gesprüht wird, Turbinenschaufeln TS vorgesehen, die ebenso in der Draufsicht gemäß FIG 2 dargestellt sind.According to the invention are in the area of the water inlet in which the water is sprayed into the spray arm SA, turbine blades TS provided, which is also in the plan view of FIG 2 are shown.

    Im folgenden werden mit Turbinenschaufeln TS die feststehenden Schaufeln des Wassereinlasses WE bezeichnet und mit Leitschaufeln LS die sich gegenüber den Turbinenschaufeln TS drehenden, im Sprüharm SA befindlichen Schaufeln.The following are the fixed ones with turbine blades TS Shoveling the water inlet WE labeled and with Guide blades LS which are opposite the turbine blades TS rotating blades in spray arm SA.

    Die Turbinenschaufeln TS sind hier bogenförmig geformt, können aber auch eine andere Form aufweisen. Der Fachmann wird aus der Turbinentechnik entsprechende Anregungen zur Auslegung der Schaufelformen für einen optimierten Betrieb erhalten. Dies gilt auch für die Leitschaufeln LS. Wichtig ist allein, dass die Schaufeln LS, TS so geformt sind, dass das in den Sprüharm einströmende Wasser ein Drehmoment auf den Sprüharm erzeugt.The turbine blades TS are arched here, but can also have a different shape. The expert turbine technology will provide appropriate suggestions for Design of blade shapes for optimized operation receive. This also applies to the guide vanes LS. Important is only that the blades LS, TS are shaped so that the water flowing into the spray arm has a torque generated the spray arm.

    In der Darstellung gemäß FIG 2 ist mit gebogenen Pfeilen angedeutet, wie die Reinigungsflüssigkeit zwischen den Turbinenschaufeln TS hindurch strömt. Da die Turbinenschaufeln TS feststehend sind, wird das Wasser an die im Sprüharm SA befindlichen Leitschaufeln LS gedrückt, so dass ein Drehmoment in der mit dem Pfeil angegebenen Drehrichtung DR erzeugt wird. Die Leitschaufeln LS sind nicht notwendiger Weise vorzusehen, da ein Drehmoment auch über die Seitenwände des Sprüharms erzeugt werden kann. Sie verbessern aber den Drehimpuls entsprechend. Anstelle der gebogenen Leitschaufel LS können selbstverständlich auch gerade Leitschaufeln oder anders geformte Leitschaufeln LS verwendet werden.In the illustration according to FIG 2 is with curved arrows indicated how the cleaning fluid between the turbine blades TS flows through. Because the turbine blades TS are fixed, the water is sent to the spray arm SA guide vanes LS pressed, so that a torque generated in the direction of rotation DR indicated by the arrow becomes. The guide vanes LS are not necessary Way to provide a torque also across the side walls of the spray arm can be generated. You improve but the angular momentum accordingly. Instead of the curved one Guide vanes LS can of course also use straight guide vanes or other shaped guide blades LS used become.

    Selbstverständlich können zusätzlich noch Antriebsdüsen AD vorgesehen werden, die jedoch in der Regel sehr viel kleiner dimensioniert werden können, als dies bei herkömmlichen Sprühvorrichtungen der Fall ist. Je nach Auslegung der Sprühvorrichtung und des Sprüharms, kann evtl. auf die Antriebsdüsen auch ganz verzichtet werden.Of course, additional drive nozzles AD are provided, which are, however, usually much smaller can be dimensioned than conventional ones Sprayers is the case. Depending on the interpretation of the Spray device and the spray arm, can possibly on the drive nozzles can also be dispensed with entirely.

    Claims (3)

    Sprühvorrichtung für eine Geschirrspülmaschine, bestehend aus einem Sprüharm (SA), der drehbar an einem Wassereinlass (WE) angebracht ist, wobei der Wassereinlass (WE) Turbinenschaufeln (TS) aufweist.Spray device for a dishwasher, consisting from a spray arm (SA) that rotates at a water inlet (WE) is attached, the water inlet (WE) turbine blades (TS). Sprühvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass im Sprüharm (SA) Leitschaufeln (LS) angebracht sind.Spray device according to claim 1, characterized in that guide vanes (LS) are attached in the spray arm (SA). Sprühvorrichtung nach einem der vorstehenden Ansprüche, wobei der Sprüharm (SA) Antriebsdüsen (AD) aufweist.Spray device according to one of the preceding claims, wherein the spray arm (SA) has drive nozzles (AD).
    EP20010112330 2000-08-16 2001-05-19 Spraying device for a dishwasher Expired - Lifetime EP1183983B1 (en)

    Applications Claiming Priority (4)

    Application Number Priority Date Filing Date Title
    DE20014038U 2000-08-16
    DE2000139880 DE10039880A1 (en) 2000-08-16 2000-08-16 Spray arm for dishwashing machine has water inlet including turbine blades
    DE20014038U DE20014038U1 (en) 2000-08-16 2000-08-16 Spray device for a dishwasher
    DE10039880 2000-08-16

    Publications (3)

    Publication Number Publication Date
    EP1183983A2 true EP1183983A2 (en) 2002-03-06
    EP1183983A3 EP1183983A3 (en) 2003-04-02
    EP1183983B1 EP1183983B1 (en) 2006-07-12

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    ID=26006705

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP20010112330 Expired - Lifetime EP1183983B1 (en) 2000-08-16 2001-05-19 Spraying device for a dishwasher

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    EP (1) EP1183983B1 (en)
    DE (1) DE50110439D1 (en)
    TR (1) TR200102372A2 (en)

    Cited By (8)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CN110840328A (en) * 2019-11-28 2020-02-28 宋金富 Dust collector capable of cleaning glass
    CN110876582A (en) * 2019-11-28 2020-03-13 宋金富 Folding type dust collector
    EP4098172A1 (en) 2021-06-03 2022-12-07 Belimed Life Science AG Spraying device for a cleaning machine for cleaning medical, pharmaceutical and/or laboratory utensils
    US20230101450A1 (en) * 2021-09-30 2023-03-30 Midea Group Co., Ltd. High speed reusable beverage container washing system with pop-up sprayer
    US12011132B2 (en) 2021-09-30 2024-06-18 Midea Group Co., Ltd. High speed reusable beverage container washing system
    US12022988B2 (en) 2021-09-30 2024-07-02 Midea Group Co., Ltd. High speed reusable beverage container washing system with slip ring for supplying power to a rotatable ultraviolet light
    US12035865B2 (en) 2021-09-30 2024-07-16 Midea Group Co., Ltd. High speed reusable beverage container washing system with concentric housing members
    US12036588B2 (en) 2021-09-30 2024-07-16 Midea Group Co., Ltd. High speed reusable beverage container washing system with beverage container holder having retainer with lateral opening

    Families Citing this family (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CN110859546B (en) * 2019-11-28 2021-07-23 江西旺来科技有限公司 Folding multifunctional dust collector

    Citations (9)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR589092A (en) * 1924-01-18 1925-05-22 Navarre Et Fils P Dishwasher
    DE1453094A1 (en) * 1961-05-31 1969-01-02 Verzinkerei Zug Ag Automatic dishwasher
    US3645453A (en) * 1970-08-20 1972-02-29 Fedders Corp Dishwasher impeller and spray apparatus
    FR2412295A1 (en) * 1977-12-23 1979-07-20 Licentia Gmbh Mounting for dishwasher spray arms - consists of vertical pipe with support for rotary distributor
    US4298015A (en) * 1979-12-12 1981-11-03 Garza Antonio M Dishwasher
    DE3426004A1 (en) * 1983-07-20 1985-01-31 General Electric Co., Schenectady, N.Y. DISHWASHER
    EP0321025A2 (en) * 1987-12-18 1989-06-21 Dall'Oglio, Erminio Hydraulic-motor driven rotary spray-arm device for dish-washing machines
    US5673714A (en) * 1994-06-16 1997-10-07 Electrolux Zanussi Elettrodomestici S.P.A. Dishwasher with reversible rotating spray agitator
    US5924432A (en) * 1995-10-17 1999-07-20 Whirlpool Corporation Dishwasher having a wash liquid recirculation system

    Patent Citations (9)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR589092A (en) * 1924-01-18 1925-05-22 Navarre Et Fils P Dishwasher
    DE1453094A1 (en) * 1961-05-31 1969-01-02 Verzinkerei Zug Ag Automatic dishwasher
    US3645453A (en) * 1970-08-20 1972-02-29 Fedders Corp Dishwasher impeller and spray apparatus
    FR2412295A1 (en) * 1977-12-23 1979-07-20 Licentia Gmbh Mounting for dishwasher spray arms - consists of vertical pipe with support for rotary distributor
    US4298015A (en) * 1979-12-12 1981-11-03 Garza Antonio M Dishwasher
    DE3426004A1 (en) * 1983-07-20 1985-01-31 General Electric Co., Schenectady, N.Y. DISHWASHER
    EP0321025A2 (en) * 1987-12-18 1989-06-21 Dall'Oglio, Erminio Hydraulic-motor driven rotary spray-arm device for dish-washing machines
    US5673714A (en) * 1994-06-16 1997-10-07 Electrolux Zanussi Elettrodomestici S.P.A. Dishwasher with reversible rotating spray agitator
    US5924432A (en) * 1995-10-17 1999-07-20 Whirlpool Corporation Dishwasher having a wash liquid recirculation system

    Cited By (11)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CN110840328A (en) * 2019-11-28 2020-02-28 宋金富 Dust collector capable of cleaning glass
    CN110876582A (en) * 2019-11-28 2020-03-13 宋金富 Folding type dust collector
    CN110876582B (en) * 2019-11-28 2021-09-24 嘉兴考普诺机械科技有限公司 Folding type dust collector
    CN110840328B (en) * 2019-11-28 2021-09-24 嘉兴考普诺机械科技有限公司 Dust collector capable of cleaning glass
    EP4098172A1 (en) 2021-06-03 2022-12-07 Belimed Life Science AG Spraying device for a cleaning machine for cleaning medical, pharmaceutical and/or laboratory utensils
    US20230101450A1 (en) * 2021-09-30 2023-03-30 Midea Group Co., Ltd. High speed reusable beverage container washing system with pop-up sprayer
    US12011132B2 (en) 2021-09-30 2024-06-18 Midea Group Co., Ltd. High speed reusable beverage container washing system
    US12022988B2 (en) 2021-09-30 2024-07-02 Midea Group Co., Ltd. High speed reusable beverage container washing system with slip ring for supplying power to a rotatable ultraviolet light
    US12029369B2 (en) * 2021-09-30 2024-07-09 Midea Group Co., Ltd. High speed reusable beverage container washing system with pop-up sprayer
    US12035865B2 (en) 2021-09-30 2024-07-16 Midea Group Co., Ltd. High speed reusable beverage container washing system with concentric housing members
    US12036588B2 (en) 2021-09-30 2024-07-16 Midea Group Co., Ltd. High speed reusable beverage container washing system with beverage container holder having retainer with lateral opening

    Also Published As

    Publication number Publication date
    EP1183983A3 (en) 2003-04-02
    EP1183983B1 (en) 2006-07-12
    TR200102372A2 (en) 2002-03-21
    DE50110439D1 (en) 2006-08-24

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