EP0524102B1 - Waschmaschine mit verbessertem Betrieb - Google Patents

Waschmaschine mit verbessertem Betrieb Download PDF

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Publication number
EP0524102B1
EP0524102B1 EP19920402063 EP92402063A EP0524102B1 EP 0524102 B1 EP0524102 B1 EP 0524102B1 EP 19920402063 EP19920402063 EP 19920402063 EP 92402063 A EP92402063 A EP 92402063A EP 0524102 B1 EP0524102 B1 EP 0524102B1
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EP
European Patent Office
Prior art keywords
tank
roof
cleaning
revolving
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.)
Expired - Lifetime
Application number
EP19920402063
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English (en)
French (fr)
Other versions
EP0524102A1 (de
Inventor
Camille THOMSON-CSF SCPI Barbier
Benoît THOMSON-CSF SCPI Gailledrat
Jean-Michel THOMSON-CSF SCPI Theau
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.)
Esswein SA
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Esswein SA
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Filing date
Publication date
Application filed by Esswein SA filed Critical Esswein SA
Publication of EP0524102A1 publication Critical patent/EP0524102A1/de
Application granted granted Critical
Publication of EP0524102B1 publication Critical patent/EP0524102B1/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 with improved operation.
  • Some known dishwashers include at the ceiling of their tank a “ceiling” spray reel.
  • This "ceiling” watering reel is usually intended either for a main washing of the dishes in their upper basket, or for additional watering of these dishes, the main washing of which is ensured by an upper watering reel arranged below their upper basket for dishes.
  • the liquid jets sent by this "ceiling" reel are mainly directed laterally and downwards on the dishes below. Some of these jets reach the side walls of the tank, but these jets are not oriented towards the ceiling of this tank only randomly or partially. In addition, this watering "ceiling" reel is often bulky.
  • Certain other known dishwashers comprise at the level of the ceiling of their tank a fixed "ceiling" nozzle for supplying liquid to a watering reel supported by their upper basket for dishes.
  • This fixed “ceiling” nozzle may have two or more lateral outlets which emit fixed jets of liquid falling in rain on the dishes below in the upper basket for dishes. These fixed jets of liquid from the “ceiling” nozzle are directed laterally and downwards and carry out additional watering of these dishes, the main washing of which is ensured by the supported watering reel. by the upper dish basket.
  • Also known from document CH-A-442 647 is a dishwasher comprising a turbine permanently spraying the entire surface of the ceiling of the tank of this machine.
  • the present invention aims to avoid these drawbacks, makes it possible to produce a dishwasher having an excellent operation in which the washing and / or rinsing of the dishes is greatly improved, and gives a dish washed and / or rinsed with food particles.
  • a dishwasher provided in its tank with a lower watering reel, an upper watering reel associated with the lower and upper dish baskets, and another watering device directed towards the tank ceiling, is characterized in that this other watering device is a reel for voluntary cleaning of the entire surface of the tank ceiling, this reel providing a main function of sweeping the surface of the ceiling by jets of liquid leaving one or more nozzles made in the reel.
  • a dishwasher 1 represented diagrammatically by broken lines comprises a tank 2, a lower dish basket 3, an upper dish basket 4, lower 5 and upper 6 reels and a sump 8 in the bottom of the tank 2.
  • Sump 8 is in communication, on the one hand to through an intake pipe 9 with a liquid recycling pump 10 which sucks liquid into this sump and discharges it through pipes 12 and 13 into the lower 5 and upper 6 reels, and on the other hand to through an inlet 14, with a drain pump 18 which collects liquid in the lowest part of this sump 8 and discharges it outwards through a drain pipe 19.
  • a liquid recycling pump 10 which sucks liquid into this sump and discharges it through pipes 12 and 13 into the lower 5 and upper 6 reels, and on the other hand to through an inlet 14, with a drain pump 18 which collects liquid in the lowest part of this sump 8 and discharges it outwards through a drain pipe 19.
  • the sump 8 is covered by a medium filter 20 and a coarse filter 22.
  • the medium filter 20 separates the recycling pump 10, from the tank 2 and from the inlet 14 of the drain pump 18, and puts the tank 2 in communication with the inlet 14 of the drain pump 18 through its tubular opening 21 in which the coarse filter 22 is mounted.
  • a microfilter 40 is mounted in the tank 2 and filters the small food particles or microparticles conveyed by a stream of liquid sent by the recycling pump 10 through a bypass line 27, and a nozzle 42 disposed in the inlet 14 from the drain pump 18. This stream of liquid represents only a fraction of the liquid discharged by the recycling pump 10.
  • the microfilter 40 allows filtered liquid to pass into the tank 2 and retains food microparticles.
  • a non-return valve 16 separates the inlet opening of the drain pump 18 and the inlet 14.
  • the non-return valve 16 is open only in the direction of the drain pump 18 and closed in the opposite direction.
  • the medium filter 20, the coarse filter 22 and the microfilter 40 gradually retain the food particles present in the washing or rinsing liquid.
  • liquid streams form pass from the tank 2 through the medium filter 20, the coarse filter 22 and the microfilter 40, into the inlet 14 of this drain pump 18 then entrain food particles retained by the medium filter 20 and the microfilter 40 and discharge them towards the outside through the drain pipe 19.
  • the large food particles retained by the coarse filter 22 are removed manually during cleaning of this filter 22.
  • the average residence time of food particles on the ceiling of their tank is greater than that of food particles on dishes, which requires a relatively large number of rinses in these known dishwashers without the dishes being washed and rinsed in these devices is free of traces of food particles on its surface.
  • a dishwasher for having quickly got rid of food particles, comprises in addition to the upper and lower reels associated with the lower and upper baskets for dishes, a reel for voluntary cleaning of the entire surface of the ceiling of the tank.
  • This reel for cleaning the tank ceiling has a double function, a main function of sweeping the surface of this ceiling by jets of liquid and a subsidiary function of watering the dishes in the upper and lower basket for dishes. rain of liquid coming from these jets of liquid returned by this ceiling.
  • the ceiling of the tank of this dishwasher is free of food particles, that the washing and / or rinsing of the dishes is significantly improved by additional watering of these dishes operated by the voluntary cleaning reel of the ceiling of the tank, that the microparticles are no longer found in a lesser way in the microfilter, in the last rinses, that an optimal purification of each of the washing and rinsing baths is carried out, and that the number of baths in a program of operation can be reduced while obtaining washed and rinsed dishes free of traces of food particles.
  • the dishwasher 1 comprises, in the vicinity of the ceiling 46 of the tank 2, a reel 49 for cleaning the tank ceiling and a mixed part 50 serving both as a nozzle 51 supply of liquid to the upper sprinkler reel 6, axis 53 of rotation to this reel 49 for cleaning the tank ceiling and water distributor for this same reel.
  • the reel 49 for cleaning the tank ceiling consists of a circular, polygonal or elongated box 54 provided on the one hand with a tubular hub 55 cut transversely in two by a circular transverse slot 56 (FIG. 2) or a circular transverse row openings (not shown) serving as a liquid inlet channel and on the other hand one or more orifices or nozzles 57 oriented towards the ceiling 46 of tank 2 and giving at their outlet one or more jets of liquid sweeping during the rotation of this reel 49 the whole extent of the surface of this ceiling 46.
  • the mixed part 50 comprises a tubular body which, serving as an axis 53 of rotation or reel 49 for cleaning the tank ceiling, comprises at one end, an axial nozzle 51 for supplying liquid to the upper sprinkler reel 6 and a radial flange 59.
  • This flange 59 serves both as a support stop for the reel 49 for cleaning the tank ceiling and as a socket for mounting the mixed part 50 on the end of the pipe 13 connected to the pump. liquid recycling 10.
  • the tubular body of the mixed part 50 serving as the axis of rotation 53 of the reel 49 for cleaning the tank ceiling comprises in its wall on the one hand at least one radial opening 62 for supplying liquid to the reel 49 for cleaning the tank ceiling and on the other hand on both sides of this or these radial openings 62 two circular transverse grooves 64, 65 open towards the outside of this tubular body and intended to ensure good guidance and sealing satisfactory.
  • the recycling pump 10 sucks liquid into the sump 8 and discharges it through the pipes 12, 13, 27.
  • the stream of liquid discharged through the pipe 13 is divided into two parts at the level of the mixed part 50, a part passing through the nozzle 51 crossing a space in the air 70 and entering via a pipe 71 in the upper spray reel 6 and a part passing through the radial openings 62, the transverse slot 56 entering the reel 49 for cleaning the tank ceiling and leaving the orifices or nozzles 57 under form of liquid jets 75 which sweep the surface of the ceiling 46 and entrain food particles which deposit there before being returned by this ceiling 46 and falling in rain on the dishes in the upper 4 and lower 3 basket for dishes .
  • the ceiling 46 of the tank 2 is thus voluntarily cleaned continuously and over its entire surface by jets of liquid 75 from the reel 49 which quickly regularly and progressively entrain food particles therein. deposit.
  • the average residence time of the food particles on the ceiling is then equivalent to the average residence time of the food particles on the surface of the dishes in baskets 3 and 4. There is no longer a time difference between the evacuation of food particles attached to the ceiling 46 of the tank 2 and that on the dishes and the other walls of the tank 2, which no longer requires a large number of rinses to remove the last food particles in the appliance to obtain dishes washed and rinsed free of traces of food particles.

Landscapes

  • Washing And Drying Of Tableware (AREA)

Claims (6)

  1. Geschirrspülmaschine, die in ihrem Bottich einen unteren Sprüharm (5), einen oberen Sprüharm (6), die dem unteren (3) bzw. oberen Geschirrkorb (4) zugeordnet sind, und eine weitere Sprühvorrichtung aufweist, die zur Decke des Bottichs hin gerichtet ist, dadurch gekennzeichnet, daß diese weitere Sprühvorrichtung einen Sprüharm (49) zur gezielten Reinigung der ganzen Deckenfläche (46) des Bottichs (2) ist, wobei Die Hauptaufgabe dieses Sprüharms (49) das Überstreichen der Deckenfläche (46) mit Flüssigkeitsstrahlen (75) ist, die aus einer oder mehreren im Sprüharm angeordneten Düsen (57) kommen.
  2. Geschirrspülmaschine nach Anspruch 1, dadurch gekennzeichnet, daß der Sprüharm zusätzlich das Geschirr im unteren (3) und oberen Korb (4) mit einem Flüssigkeitsregen berieselt, der von diesen von dieser Decke (46) reflektierten Flüssigkeitsstrahlen (75) stammt.
  3. Geschirrspülmaschine nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß der Sprüharm (49) zur Reinigung der Bottichdecke aus einem kreisförmigen, polygonalen oder länglichen Behälter (54) besteht, der einerseits eine rohrförmige Nabe (55), die in Querrichtung durch einen transversalen kreisförmigen Schlitz (56) in zwei Teile geteilt wird, der als Flüssigkeits-Eingangskanal dient, und andererseits eine oder mehrere Öffnungen oder Düsen (57) aufweist, die zur Decke (46) des Bottichs (2) ausgerichtet sind und an ihrem Ausgang oder ihren Ausgängen einen oder mehrere Flüssigkeitsstrahlen erzeugen, die während der Drehung dieses Sprüharms (49) die ganze Deckenfläche (46) überstreichen.
  4. Geschirrspülmaschine nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß der Sprüharm (49) zur Reinigung der Bottichdecke aus einem kreisförmigen, polygonalen oder länglichen Behälter (54) besteht, der einerseits eine rohrförmige Nabe (55), die in Querrichtung durch eine transversale kreisförmige Reihe von Öffnungen in zwei Teile geteilt wird, die als Flüssigkeits-Eingangskanal dienen, und andererseits eine oder mehrere Öffnungen oder Düsen (57) aufweist, die zur Decke (46) des Bottichs (2) ausgerichtet sind und an ihrem Ausgang oder ihren Ausgängen einen oder mehrere Flüssigkeitsstrahlen erzeugen, die während der Drehung dieses Sprüharms (49) die ganze Deckenfläche (46) überstreichen.
  5. Geschirrspülmaschine nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß sie ein kombiniertes Bauteil (50) aufweist, das sowohl als Düse (51) zur Versorgung des oberen Sprüharms (6) mit Flüssigkeit als auch als Drehachse (53) für den Sprüharm (49) zur Reinigung des Bottichbodens und als Wasserverteiler für diesen Sprüharm dient.
  6. Geschirrspülmaschine nach Anspruch 5, dadurch gekennzeichnet, daß das Bauteil (50) einen rohrförmigen Körper aufweist, der als Drehachse (53) für den Sprüharm (49) zur Reinigung der Bottichdecke dient und einerseits in seiner Wand mindestens eine radiale Öffnung (62) zur Speisung des Sprüharms (49) mit Flüssigkeit zur Reinigung der Bottichdecke und zu beiden Seiten dieser radialen Öffnung(en) (62) zwei kreisförmige Quernuten (64, 65), die nach außerhalb dieses rohrförmigen Körpers offen sind, sowie andererseits an einem der Enden eine axiale Düse (51) zur Speisung des oberen Berieselungs-Sprüharms (6) mit Flüssigkeit und einen radialen Kragen (59) aufweist, der sowohl als Anschlag für diesen Sprüharm (49) zur Reinigung der Bottichdecke als auch als Auflage für die Montage dieses Bauteils (50) dient.
EP19920402063 1991-07-16 1992-07-16 Waschmaschine mit verbessertem Betrieb Expired - Lifetime EP0524102B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9108952 1991-07-16
FR9108952A FR2679121B1 (fr) 1991-07-16 1991-07-16 Lave-vaisselle a fonctionnement ameliore.

Publications (2)

Publication Number Publication Date
EP0524102A1 EP0524102A1 (de) 1993-01-20
EP0524102B1 true EP0524102B1 (de) 1997-04-23

Family

ID=9415157

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920402063 Expired - Lifetime EP0524102B1 (de) 1991-07-16 1992-07-16 Waschmaschine mit verbessertem Betrieb

Country Status (4)

Country Link
EP (1) EP0524102B1 (de)
DE (1) DE69219232T2 (de)
ES (1) ES2100316T3 (de)
FR (1) FR2679121B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0766945A2 (de) * 1995-10-03 1997-04-09 SMEG S.p.A. Vorrichtung zum Waschen der Spülbehälterdecke einer Geschirrspülmaschine
EP1090694A1 (de) * 1999-10-08 2001-04-11 Winterhalter Gastronom Gmbh Spülmaschine
US9320410B2 (en) 2009-04-02 2016-04-26 Bsh Hausgeraete Gmbh Dishwashing machine
US9700196B2 (en) 2011-05-16 2017-07-11 Whirlpool Corporation Dishwasher with filter assembly

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5546968A (en) * 1993-10-23 1996-08-20 Goldstar Co., Ltd. Supplementary washing device of a dish washer
US6551414B2 (en) * 2001-01-19 2003-04-22 U.S. Chemical Corporation Automatic system and method for removing mineral deposits from a dishwasher
DE10134917B4 (de) * 2001-07-18 2006-03-16 AEG Hausgeräte GmbH Geschirrspülmaschine mit veränderbarer Flüssigkeitsverteilung
KR20040023109A (ko) * 2002-09-10 2004-03-18 엘지전자 주식회사 식기세척기용 상부 물분사장치
US9918609B2 (en) 2009-12-21 2018-03-20 Whirlpool Corporation Rotating drum filter for a dishwashing machine
US20120318296A1 (en) 2011-06-20 2012-12-20 Whirlpool Corporation Ultra micron filter for a dishwasher
US9861251B2 (en) 2011-06-20 2018-01-09 Whirlpool Corporation Filter with artificial boundary for a dishwashing machine
US9693672B2 (en) 2011-09-22 2017-07-04 Whirlpool Corporation Dishwasher with sprayer
US9492055B2 (en) 2011-09-22 2016-11-15 Whirlpool Corporation Dishwasher with spray system
US9414736B2 (en) 2011-09-22 2016-08-16 Whirlpool Corporation Dishwasher with directional spray
US9386903B2 (en) 2011-09-22 2016-07-12 Whirlpool Corporation Dishwasher with spray system
DE102012202246B4 (de) * 2012-02-15 2024-02-08 BSH Hausgeräte GmbH Geschirrspülmaschine mit einer Sprüheinrichtung
US9301667B2 (en) 2012-02-27 2016-04-05 Whirlpool Corporation Soil chopping system for a dishwasher
US9237836B2 (en) 2012-05-30 2016-01-19 Whirlpool Corporation Rotating filter for a dishwasher
US9833120B2 (en) 2012-06-01 2017-12-05 Whirlpool Corporation Heating air for drying dishes in a dishwasher using an in-line wash liquid heater
US9440266B2 (en) * 2012-11-30 2016-09-13 Steris Inc. Washer / disinfector having a water inlet diffuser
US9295368B2 (en) 2013-03-01 2016-03-29 Whirlpool Corporation Dishwasher with hydraulically driven sprayer
US9532701B2 (en) 2013-03-01 2017-01-03 Whirlpool Corporation Dishwasher with sprayer
US9713413B2 (en) 2013-07-01 2017-07-25 Whirlpool Corporation Dishwasher for treating dishes
US9532699B2 (en) 2013-07-15 2017-01-03 Whirlpool Corporation Dishwasher with sprayer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH386634A (de) * 1960-07-12 1965-01-15 Siemens Elektrogeraete Gmbh Geschirrspülmaschine
FR1380105A (fr) * 1963-01-25 1964-11-27 Bosch Gmbh Robert Machine à laver à la vaisselle
DE1503866A1 (de) * 1965-06-21 1969-06-12 Rowenta Metallwarenfab Gmbh Geschirrspuelmaschine
SE304585B (de) * 1967-04-27 1968-09-30 Electrolux Ab
CH506283A (de) * 1970-05-15 1971-04-30 Verzinkerei Zug Ag Laborgeschirrspülmaschine
US3918644A (en) * 1974-11-05 1975-11-11 Whirlpool Co Invertible dual action spray arm for dishwasher
SU1308314A1 (ru) * 1985-10-08 1987-05-07 Всесоюзный Научно-Исследовательский Экспериментально-Конструкторский Институт Электробытовых Машин И Приборов Разбрызгиватель посудомоечной машины
JPH02116344A (ja) * 1988-10-27 1990-05-01 Hoshizaki Electric Co Ltd 食器洗浄機

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0766945A2 (de) * 1995-10-03 1997-04-09 SMEG S.p.A. Vorrichtung zum Waschen der Spülbehälterdecke einer Geschirrspülmaschine
EP1090694A1 (de) * 1999-10-08 2001-04-11 Winterhalter Gastronom Gmbh Spülmaschine
US9320410B2 (en) 2009-04-02 2016-04-26 Bsh Hausgeraete Gmbh Dishwashing machine
US9700196B2 (en) 2011-05-16 2017-07-11 Whirlpool Corporation Dishwasher with filter assembly

Also Published As

Publication number Publication date
ES2100316T3 (es) 1997-06-16
DE69219232T2 (de) 1997-08-07
DE69219232D1 (de) 1997-05-28
FR2679121B1 (fr) 1995-05-19
FR2679121A1 (fr) 1993-01-22
EP0524102A1 (de) 1993-01-20

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