EP1549196B1 - Geschirrspülmaschine - Google Patents

Geschirrspülmaschine Download PDF

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Publication number
EP1549196B1
EP1549196B1 EP03791537A EP03791537A EP1549196B1 EP 1549196 B1 EP1549196 B1 EP 1549196B1 EP 03791537 A EP03791537 A EP 03791537A EP 03791537 A EP03791537 A EP 03791537A EP 1549196 B1 EP1549196 B1 EP 1549196B1
Authority
EP
European Patent Office
Prior art keywords
flushing
intensive
arm
dishes
liquid
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
EP03791537A
Other languages
English (en)
French (fr)
Other versions
EP1549196A1 (de
Inventor
Bernt Svensson
Kent Karlsson
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.)
Asko Cylinda AB
Original Assignee
Asko Cylinda AB
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 Asko Cylinda AB filed Critical Asko Cylinda AB
Publication of EP1549196A1 publication Critical patent/EP1549196A1/de
Application granted granted Critical
Publication of EP1549196B1 publication Critical patent/EP1549196B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
    • A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
    • A47L15/22—Rotary spraying devices
    • A47L15/23—Rotary spraying devices moved by means of the sprays

Definitions

  • the present invention relates to a dishwasher according to the preamble of appended claim 1.
  • the invention relates to a type of dishwasher intended for household use, with dishes being washed batchwise in a washing area.
  • Water is supplied to a certain level in the washing area, and is then circulated in a circulation system which comprises one or two flushing arms which are rotatably fixed in the machine for an even covering of the dishes to be washed, which are distributed across the area usually placed in baskets in two layers.
  • An upper arm is arranged between the two baskets, while a lower flushing arm is arranged below the lower basket.
  • the flushing arms exhibit nozzles for flushing of a washing liquid consisting mainly of water, and in a known manner the arms are brought into slow rotation for distribution of the washing liquid.
  • the dishes can be soiled to various degrees, i.e.
  • the purpose of the present invention is to obtain a lower energy consumption when washing dishes which are highly soiled and which are to be washed together with dishes which are less soiled, without exposing the lesser soiled dishes to exaggerated dishwashing, at the same time as the walls and the bottom of the dishwashing space are kept free from extra attachments.
  • a directed local and intensive flushing is obtained in a chosen limited zone of the dishwasher where highly soiled dishes are placed, without any arrangements in the bottom or the wall of the dishwashing area.
  • the dishwasher according to the invention is, as can be seen from Fig. 1 , designed with a housing 1 which is closed in the operating state, and has a hatch 2 which can be opened for filling and emptying of the dishes which are placed in the baskets 3, 4 (see the dotted lines in Fig. 4 ) which are arranged in a lower layer and an upper layer.
  • the baskets 3,4 can be moved into and out of a washing area 5 through the opened hatch 2, which is done by means of not shown horizontal guides which are arranged along opposing side walls of the washing area 5.
  • the baskets 3, 4 are open, i.e. provided with large openings so that flushing from the flushing nozzles can take place through the baskets 3, 4 which, for example, are designed by means of networks of plastic ribbons or wire meshes.
  • the dishwasher is in a conventional manner connected to a pressurized water system via a water intake 6, with a water intake valve 7 being adjustable between an open and a closed position for the supply of water in some positions and no supply during the ongoing washing cycle.
  • a water intake valve 7 being adjustable between an open and a closed position for the supply of water in some positions and no supply during the ongoing washing cycle.
  • an outlet conduit 8 Via an outlet conduit 8 , used water or washing liquid is removed, containing both detergent and pollutions.
  • a schematically shown outlet pump 9 which is automatically started after a finished cycle.
  • the water or the washing liquid is circulated in the washing area 5 in a closed system.
  • a fluid basin which is formed by a lower container part of the machine for the collection of washing fluid, see the fluid level 10 shown with dotted lines in Fig. 4 .
  • a circulation well 12 from which the outlet conduit 8 thus leads.
  • a coarse sieve and a fine sieve cover the well opening upwards.
  • the outlet conduit8 is closed either by means of a not shown separate outlet valve, or by means of the outlet pump 9 blocking the outlet conduits in the inactive position
  • the circulation pump 13 with an electric engine 14 which is arranged to be active during the washing cycles, to circulate the washing liquid under pressure and to be controlled by a not shown control unit for the various process steps of the dishwasher.
  • the central canal 15 which extends in the flushing arm tower 16 which supports the rotatable flushing arm 17.
  • said can be of a conventional type, and is rotatably attached about a vertical axis 25
  • the flushing arm 12 exhibits a plurality of oblique nozzles, both upper nozzles 18 and also nozzles 19 directed downwards.
  • the arm 12 is driven around for rotation during the operating cycles when the water is pressurized by the circulation pump 13. Via a U-shaped flushing pipe 20, the water or the washing liquid is led to an upper rotatable flushing arm 21, see Figs.
  • the upper arm 21 is also rotatably fixed and supported by the upper end of the flushing pipe 20 which terminates in an upper flushing arm tower 23 which both leads the water from the flushing pipe 20 to the inside of the flushing arm 21 and also supports the flushing arm's bearing about its axis 25. Water is also led to a cutlery flushing nozzle 24 which is arranged on the upper flushing arm tower 23 and is from above directed towards the cutlery basket for special flushing of cutlery etc.
  • a stiff unattached flushing arm 26 leads, which consists of a stiff unattached flushing conduit 27 which at its inner end 28 is attached to the lower flushing arm tower 16, and at its outer end supports an intense flushing nozzle 30 which is directed upwards towards the second dish basket 3.
  • the nozzle 30 is arranged at a relatively limited distance from the bottom of the basket 3 which within a chosen zone forms the storing surface 34 for the dishes which are represented by a pot or pan 31 which is turned upside down. The direction and influence of the nozzle 30 is thus limited to a smaller zone of the entire closed washing area 5, as can best be seen in its entirety in Fig. 1 .
  • the flushing conduit 27 thus does not exhibit nozzles distributed across the length of the conduit, but is intended to move the flushing point or flushing zone to a location at a distance from the centre of the dishwasher where the cutlery basket is usually placed.
  • the flushing arm 26 with the flushing conduit 27 is furthermore designed in a stiff material, usually a plastic pipe or a metal pipe , in order to freely support the intensive flushing nozzle 30 at a distance from the bottom or the side walls of the washing area 5 by means of which no mechanical attachments in the wall surfaces of the dishwasher are necessary ; rather the attachment is done directly in the flushing arm tower 16 by means of the conduit 21 protruding into an attachment detail 32 which is arranged on the flushing arm tower 16.
  • the flushing arm 26 is directed obliquely inwards backwards into the washing area as seen from above, in order to form a zone in essentially one of four quadrants which the bottom of the washing area 5 can be considered to be divided into.
  • the intensive flushing nozzle 30 can advantageously be designed in plastic, possibly with a nozzle opening which is covered by a metal pipe , with the nozzle being screwed onto the flushing conduit 27 by means of a locking screw 23.
  • the pipe 22 as such is thus enclosed in its casing surface, but is open at both its ends for the intake of flushing water from the central canal 15 in the flushing tower 16 and for the outlet of the water to the nozzle 30.
  • the intensive flushing nozzle 30 is in an advantageous example designed so that it emits a beam which diverges from the nozzle 30, so that a normal sized dish 31 positioned directly in front of the beam is hit over a large part of its bottom surface and possibly also to a certain extent its walls.
  • the angle of spread, and thus to a certain extent the amount of flow also influences the intensity of the beam for which reason a suitable angle is chosen after a normal case. Examples of a possible angle range for the spreading angle is between 45° and 135°, however preferably below 75°.
  • the optimal angle also depends on the distance of the nozzle 20 to the dishes 31, i.e. the storage level of the dish basket 3 in question, i.e. its storing surface 34. Examples of distances are 5-10 cm.
  • it is possible that an evenly distributed beam is replaced by a plume with the shape of a conical casing, but also a highly concentrated rotating beam is possible which thus generates the shape of a conical casing surface.
  • the free flushing arm 26 is positioned below the rotatable lower flushing arm 17, which in practice is not a problem since the arm 17 passes during such a short part of the flushing time. On the contrary, it can have a positive effect for the cleaning in that a stationary spraying pattern momentarily and recurringly is interrupted and deflected, since at the passage of the lower flushing arm 12, the beam 35 from the flushing nozzle 30 is directed to other areas in the dish 31.
  • the dishwasher can be provided with an alternating valve which, for example, is arranged in the lower flushing tower 16 and which is electrically controlled to alternatingly direct the flow of liquid from the circulating pump 13 to the lower and upper flushing arm 17, 21 respectively.
  • This alternation can be done cyclically at relatively short intervals to obtain maximum liquid pressure in the various flushing nozzles with the use of a certain flow of liquid.
  • the extra flushing nozzles 24, 30 can also be part of this alternation.
  • an alternating valve can be arranged to, as a choice, connect for example the intencive flushing nozzle 30 in case of the presence of extra soiled dishes 31, but can be turned off when there are no such dishes 31.
  • the alternation can also be given a relatively high frequency, so that the beams of liquid accomplish a pulsating effect which gives the liquid an extra dynamic force.
  • the non-attached flushing arm 26 be adjustable either by means of the inner attachment 32 making the arm 26 pivotable and/or letting the arm 26 be extendible.
  • the nozzle 30 can also be made rotatable about the longitudinal axis of the arm 26 for adjustment of the direction of the beam 35. It is however essential that the arm 26 has such a stiffness that it can freely support the nozze 30, i.e. freely without any contact with the bottom or side walls, which would lead to the gathering of pollutions.

Landscapes

  • Washing And Drying Of Tableware (AREA)
  • Centrifugal Separators (AREA)
  • Massaging Devices (AREA)

Claims (5)

  1. Geschirrspülmaschine zum chargenweisen Spülen von Geschirr in einem Spülbereich (5) durch bespritzen des Geschirrs mit einer Spülflüssigkeit mit Hilfe von Spritzdüsen (18, 19, 22, 24, 30), die mit einem Flüssigkeitsumwälzsystem verbunden sind, um die Flüssigkeit mit Hilfe einer Umwälzpumpe (13) umzuwälzen und die umgewälzte Flüssigkeit zyklisch einzulassen und auszulassen, wobei eine Anzahl der Düsen (18, 19, 22) in einem oder zahlreichen Spritzarmen (17, 21) angeordnet ist, der/die um eine Achse drehbar ist/sind, dadurch gekennzeichnet, dass der Spülbereich (5) eine Intensivzone mit einer Lagerfläche (34) für besonders verschmutztes Geschirr (31) und eine Intensivspritzdüse (30) aufweist, die, um einen lokalen Strahl (35) hin zur Intensivzone und ihrer entsprechenden Lagerfläche (34) zu richten, in einem Abstand von der Spritzarmachse (25) angeordnet ist, und dadurch, dass die Intensivspritzdüse (30) an einem steifen, frei auskragenden Spritzarm (26) fixiert und angebracht ist, der sowohl mechanisch als auch hinsichtlich der Flüssigkeit an der Umwälzleitung an einem zentralen Kanal (15) an dem drehbaren Spritzarm (17) angebracht ist, und dadurch, dass der steife Spritzarm (26) eine Flüssigkeitsleitung enthält, die die Intensivspritzdüse (30) mit dem zentralen Kanal (15) derart verbindet, dass der lokale Strahl (35) eine bestimmte Position und eine bestimmte Richtung einnimmt.
  2. Geschirrspülmaschine nach Anspruch 1, dadurch gekennzeichnet, dass der Spritzarm (26) der Intensivspritzdüse (30) mit seinem inneren Ende (28) an einem Spritzarmturm (16) angebracht ist, der den drehbaren Spritzarm (17) hält und den zentralen Kanal (15) enthält, der mit der Umwälzpumpe (13) in Verbindung steht.
  3. Spülmaschine nach Anspruch 2, dadurch gekennzeichnet, dass die Intensivspritzdüse (30) unter dem drehbaren Spritzarm (17) angebracht ist.
  4. Spülmaschine nach Anspruch 3, dadurch gekennzeichnet, dass der drehbare Spritzarm (17) dazu eingerichtet ist, den Strahl (35) aus der Intensivspritzdüse (30) periodisch zu unterbrechen und zurückzuleiten.
  5. Spülmaschine nach Anspruch 1, dadurch gekennzeichnet, dass die Lagerfläche (34) für besonders verschmutztes Geschirr (31) aus einem gewählten Platz in einem offenen Geschirrkorb (3) für einen Einlass des Strahls (35) aus der Intensivspritzdüse (30) besteht.
EP03791537A 2002-08-30 2003-08-29 Geschirrspülmaschine Expired - Lifetime EP1549196B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0202590 2002-08-30
SE0202590A SE524021C2 (sv) 2002-08-30 2002-08-30 Diskmaskin med intensivzon
PCT/SE2003/001347 WO2004019747A1 (en) 2002-08-30 2003-08-29 Dish washing machine

Publications (2)

Publication Number Publication Date
EP1549196A1 EP1549196A1 (de) 2005-07-06
EP1549196B1 true EP1549196B1 (de) 2011-11-02

Family

ID=20288867

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03791537A Expired - Lifetime EP1549196B1 (de) 2002-08-30 2003-08-29 Geschirrspülmaschine

Country Status (6)

Country Link
EP (1) EP1549196B1 (de)
AT (1) ATE531308T1 (de)
AU (1) AU2003257746A1 (de)
DK (1) DK1549196T3 (de)
SE (1) SE524021C2 (de)
WO (1) WO2004019747A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140066857A (ko) * 2012-11-12 2014-06-03 삼성전자주식회사 식기 세척기
DE102018222849A1 (de) * 2018-12-21 2020-06-25 BSH Hausgeräte GmbH Haushalts-Geschirrspülmaschine

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1947959B1 (de) 2005-10-19 2017-09-20 Hill's Pet Nutrition, Inc. Verfahren zur herstellung einer lebensmittelzusammensetzung
SE531890C2 (sv) 2007-01-26 2009-09-01 Gs Dev Ab Diskmaskin
US8007598B2 (en) 2008-10-27 2011-08-30 Whirlpool Corporation Dishwasher having multiple spray zones
US8349089B2 (en) 2008-11-07 2013-01-08 Whirlpool Corporation Dishwasher having dedicated sprayer for silverware basket
KR101300919B1 (ko) * 2011-07-21 2013-08-27 엘지전자 주식회사 식기 세척기
ES2963076T3 (es) * 2012-07-16 2024-03-25 Candy Spa Un lavavajillas
US10610079B2 (en) 2013-08-06 2020-04-07 Arcelik Anonim Sirketi Dishwasher having multiple spray arms for improved washing effectiveness
WO2015049237A1 (en) 2013-10-03 2015-04-09 Arcelik Anonim Sirketi A dishwasher with improved washing effectiveness
WO2015096921A1 (en) 2013-12-24 2015-07-02 Arcelik Anonim Sirketi A dishwasher with improved washing effectiveness
US11297997B2 (en) * 2018-04-04 2022-04-12 K.D.W. Company Limited Dish washing machine with heat exchangers
PL3791768T3 (pl) 2019-09-16 2023-12-27 Arçelik Anonim Sirketi Zmywarka o zwiększonej skuteczności zmywania
US20250318707A1 (en) 2022-06-22 2025-10-16 Gorenje D.O.O. A dishwasher with improved spraying means
DE102022207320A1 (de) * 2022-07-18 2024-01-18 BSH Hausgeräte GmbH Geschirrspülmaschine und Spülgutaufnahme mit Erweiterungsmöglichkeit
EP4364633A1 (de) 2022-11-07 2024-05-08 Arçelik Anonim Sirketi Geschirrspülmaschine mit verbesserter waschwirksamkeit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3288155A (en) * 1964-09-28 1966-11-29 Gen Electric Silverware washing system
US3915182A (en) * 1973-11-08 1975-10-28 Tappan Co Spray deflector for dishwashers
DE29607515U1 (de) * 1996-04-25 1997-08-21 AEG Hausgeräte GmbH, 90429 Nürnberg Geschirrspülmaschine mit einem Spülraum zur Anordnung von zu reinigendem Spülgut

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140066857A (ko) * 2012-11-12 2014-06-03 삼성전자주식회사 식기 세척기
DE102018222849A1 (de) * 2018-12-21 2020-06-25 BSH Hausgeräte GmbH Haushalts-Geschirrspülmaschine

Also Published As

Publication number Publication date
WO2004019747A1 (en) 2004-03-11
SE524021C2 (sv) 2004-06-15
ATE531308T1 (de) 2011-11-15
SE0202590D0 (sv) 2002-08-30
AU2003257746A1 (en) 2004-03-19
DK1549196T3 (da) 2012-01-30
EP1549196A1 (de) 2005-07-06
SE0202590L (sv) 2004-03-01

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