DE3723721A1 - Method for operating a washing machine, especially a dishwasher, and washing machine working according to such a method - Google Patents
Method for operating a washing machine, especially a dishwasher, and washing machine working according to such a methodInfo
- Publication number
- DE3723721A1 DE3723721A1 DE19873723721 DE3723721A DE3723721A1 DE 3723721 A1 DE3723721 A1 DE 3723721A1 DE 19873723721 DE19873723721 DE 19873723721 DE 3723721 A DE3723721 A DE 3723721A DE 3723721 A1 DE3723721 A1 DE 3723721A1
- Authority
- DE
- Germany
- Prior art keywords
- filter wall
- filter
- washing machine
- washing
- tub
- 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
Links
- 238000005406 washing Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000004140 cleaning Methods 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 18
- 238000011010 flushing procedure Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 3
- 239000002245 particle Substances 0.000 description 5
- 239000002585 base Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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
- A47L15/42—Details
- A47L15/4202—Water filter means or strainers
- A47L15/4208—Arrangements to prevent clogging of the filters, e.g. self-cleaning
-
- 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
- A47L15/42—Details
- A47L15/4202—Water filter means or strainers
- A47L15/4206—Tubular filters
Landscapes
- Washing And Drying Of Tableware (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein Verfahren für den Betrieb einer Waschmaschine, insbesondere einer Geschirr spülmaschine in einem Arbeitszyklus mit mehreren Wasch- oder Spülgängen, während welcher die Waschflüssigkeit zur Filterung in einer Richtung durch eine Filterwand hindurch geleitet wird.The invention relates to a method for the Operation of a washing machine, especially dishes dishwasher in one cycle with several washing machines or rinses during which the washing liquid for One-way filtering through a filter wall is directed.
Die Erfindung bezieht sich ferner auf eine Waschmaschine, insbesondere Geschirrspülmaschine mit Einrichtungen zum Filtern der Waschflüssigkeit, zum Durchführen eines Verfah rens der vorstehend genannten Art, mit einer Laugenwanne, einer in dieser ausmündenden Wasserzuleitung und Einrich tungen zum Erzeugen einer unidirektionalen Strömung der Waschflüssigkeit sowie einer diesen Einrichtungen zugeord neten Filterwand.The invention further relates to a washing machine, especially dishwasher with facilities for Filtering the washing liquid to carry out a procedure rens of the type mentioned above, with a tub, one in this emptying water supply and device to generate a unidirectional flow of the Washer fluid and one of these facilities assigned neten filter wall.
Der Arbeitszyklus einer Geschirrspülmaschine, d. h. die Folge von Arbeitstakten, für deren Durchführung eine solche Maschine eingerichtet ist, setzt sich bekanntlich aus verschiedenen Arbeitsgängen, z. B. einem Vorwaschgang, einem Hauptwaschgang und einem Spülgang zusammen, auf welche gegebenenfalls noch eine Trocknung folgen kann.The working cycle of a dishwasher, i. H. the consequence of work cycles for the execution of which As is known, the machine is set up different operations, e.g. B. a pre-wash cycle, a main wash and a rinse together which may follow drying if necessary.
Zur Verringerung des Wasserverbrauchs während der verschie denen Wasch- und Spülgänge wurde bereits vor langer Zeit vorgeschlagen, die Waschflüssigkeit durch Umwälzung besser zu nutzen. Um trotz der Umwälzung der Waschflüssigkeit ein gutes Ergebnis der Wasch- und Spülgänge zu gewährleisten, erwies es sich als notwendig, die Waschflüssigkeit zu fil tern, indem man sie z. B. in einer Richtung durch eine Filterwand hindurchleitet. Zu diesem Zweck verwendet man gewöhnlich verschiedene Maschenweiten aufweisende Siebfilter, welche nahe der Eintrittsöffnung der Ansaugleitung einer Umwälzpumpe im Bodenbereich der Laugenwanne der Spülmaschine angeordnet sind.To reduce water consumption during various which washes and rinses was long ago suggested the washing liquid better by circulation to use. To a despite the circulation of the washing liquid to ensure good results of the washing and rinsing cycles it was found necessary to fil the washing liquid tern by z. B. in one direction by a Filter wall passes through. For this purpose one uses sieve filters usually having different mesh sizes, which near the inlet opening of the intake pipe Circulation pump in the base area of the washing machine tub are arranged.
Bekannte Siebfilter dieser Art erfüllen zwar im wesentlichen ihren Zweck, weisen dabei jedoch die im folgenden erläuterten Nachteile und Mängel auf.Known screen filters of this type essentially meet their purpose, however, point out the following explained disadvantages and shortcomings.
Bei einem sehr feinmaschigen Filtersieb ist es unerläßlich, es relativ häufig, in jedem Falle jedoch am Ende jedes Arbeitszyklus von Hand zu reinigen.With a very fine-mesh filter screen, it is essential it relatively often, but in any case at the end of each Hand cycle to clean.
Verwendet man dagegen, um dem vorstehend genannten Nachteil zu begegnen, ein weniger feinmaschiges Siebfilter, dann verringert sich offensichtlich die Filterwirkung, mit der Folge, daß die umgewälzte und dem Geschirr erneut zuge führte Waschflüssigkeit größere Mengen von Schmutzteilchen enthält.On the other hand, one uses to the disadvantage mentioned above to encounter a less fine mesh sieve filter, then the filter effect with which Consequence that the circulated and the dishes again led washing liquid to larger amounts of dirt particles contains.
Ein Ziel der Erfindung ist die Schaffung eines Verfahrens für den Betrieb einer Wasch- bzw. Spülmaschine sowie einer für die Durchführung eines solchen Verfahrens ausgebildeten Wasch- bzw. Spülmaschine, welches bzw. welche eine auto matische Reinigung eines Filters vorsieht bzw. ermöglicht, um auf diese Weise den vorstehend genannten Nachteilen des Stands der Technik zu begegnen.An object of the invention is to provide a method for the operation of a washing machine or dishwasher and one trained to carry out such a procedure Washing machine or dishwasher, which or which an auto provides or enables the mechanical cleaning of a filter, in order in this way to overcome the disadvantages mentioned above To meet the state of the art.
Bei einem Verfahren der eingangs genannten Art ist dieses Ziel gemäß der Erfindung dadurch erreicht, daß die Filter wand während wenigstens eines Reinigungstakts im Gegenstrom gespült wird.In the case of a method of the type mentioned at the beginning, this is Objective achieved according to the invention in that the filter countercurrent during at least one cleaning cycle is rinsed.
Des weiteren ist das genannte Ziel bei einer Wasch- bzw. Spülmaschine der eingangs genannten Art gemäß der Erfindung erreicht durch das Vorhandensein wenigstens einer weiteren Leitung mit einem an der Zuleitung angeschlossenen Ende und einem anderen Ende, welches der unidirektionalen Strö mung entgegengewandt auf den von dieser durchsetzten Bereich der Filterwand ausgerichtet ist.Furthermore, the stated goal in a washing or Dishwasher of the type mentioned according to the invention achieved by the presence of at least one more Line with one end connected to the supply line and another end, which of the unidirectional currents opposite to the area penetrated by it the filter wall is aligned.
Im folgenden sind die Ausführungsbeispiele der Erfindung an hand der Zeichnung erläutert. Es zeigtThe following are the exemplary embodiments of the invention hand of the drawing explained. It shows
Fig. 1 eine im Schnitt dargestellte Seitenansicht von Teilen einer Geschirrspülmaschine gemäß einer Ausführungs form der Erfindung, Fig. 1 is a side view of parts of a dishwasher according to one embodiment of the invention shown in section,
Fig. 2 eine Ansicht im Schnitt entlang der Linie II-II in Fig. 1, Fig. 2 is a view in section taken along the line II-II in Fig. 1,
Fig. 3 eine Fig. 2 entsprechende Darstellung des entspre chenden Bereichs einer Spülmaschine in einer anderen Ausführungsform der Erfindung, Fig. 3 is a Fig. 2 corresponding representation of the entspre sponding portion of a dishwasher, in another embodiment of the invention,
Fig. 4 eine im Schnitt dargestellte Seitenansicht von Teilen einer Geschirrspülmaschine gemäß noch einer anderen Ausführungsform der Erfindung und Fig. 4 is a sectional side view of parts of a dishwasher according to yet another embodiment of the invention and
Fig. 5 eine Ansicht im Schnitt entlang der Linie V-V in Fig. 4. Fig. 5 is a view in section along the line VV in Fig. 4.
Die Zeichnung zeigt das untere Teil einer Spülkammer 1 mit einem Boden 2, in dessen Mitte eine Laugenwanne 4 von elliptischem Querschnitt ausgebildet ist. In der Laugen wanne 4 mündet die Eintrittsöffnung 6 der Ansaugleitung 7 einer Umwälzpumpe 8 für die Wasch- oder Spülflüssigkeit. In der Spülkammer 1 mündet eine herkömmliche und deshalb nicht dargestellte Wasserzuleitung aus.The drawing shows the lower part of a washing chamber 1 with a bottom 2 , in the middle of which a tub 4 of elliptical cross section is formed. In the alkali tub 4 , the inlet opening 6 of the suction line 7 of a circulation pump 8 for the washing or rinsing liquid. A conventional water supply line, which is therefore not shown, opens into the rinsing chamber 1 .
Ein in der Mitte der Laugenwanne 4 angeordnetes becher förmiges Filter 5 sitzt mit seiner Eintrittsöffnung 9 in einem Bodenleitblech 10, welches die Laugenwanne 4 oben abschließt. Das Bodenleitblech 10 ist mit einem senk recht darauf stehenden Handgriff 11 versehen, mittels dessen es zur Inspektion des Filters 5 ausbaubar ist.A cup-shaped filter 5 arranged in the middle of the tub 4 sits with its inlet opening 9 in a bottom baffle 10 , which closes the tub 4 at the top. The bottom guide plate 10 is provided with a handle 11 standing vertically thereon, by means of which it can be removed for inspection of the filter 5 .
In der Laugenwanne 4 mündet außerdem die Eintrittsöffnung 12 der Ansaugleitung 13 einer Austragspumpe 14 für die Wasch- bzw. Spülflüssigkeit. Das becherförmige Filter 5 hat am unteren Teil einer Auslaßöffnung 15, welche über einen Rohranschluß 16 mit der Eintrittsöffnung 12 der Ansaug leitung 13 verbunden ist.The inlet opening 12 of the suction line 13 of a discharge pump 14 for the washing or rinsing liquid also opens into the tub 4 . The cup-shaped filter 5 has at the lower part of an outlet opening 15 which is connected via a pipe connection 16 to the inlet opening 12 of the suction line 13 .
Das Filter 5 hat eine grobmaschige erste Filterwand 17 von zylindrischer Form, welche mittels Haken 3 am Bodenleit blech 10 aufgehängt ist, und eine diese umgebende zweite Filerwand 18, welche aus einem feinmaschigen Bereich und einem Bereich mittlerer Maschengröße zusammengesetzt ist. Insbesondere ist ein der Eintrittsöffnung 6 der Ansaug leitung 7 der Umwälzpumpe 8 zugewandter Bereich 19 der Filterwand 18 feinmaschig ausgeführt und erstreckt sich über etwa ein Drittel des Umfangs der Filterwand 18, während der Rest der Filterwand 18 eine mittlere Maschenweite auf weist.The filter 5 has a coarse-meshed first filter wall 17 of cylindrical shape, which is suspended by means of hook 3 on the bottom guide plate 10 , and a surrounding second filter wall 18 , which is composed of a fine-meshed area and an area of medium mesh size. In particular, one of the inlet opening 6 of the suction line 7 of the circulation pump 8 facing region 19 of the filter wall 18 is finely meshed and extends over about a third of the circumference of the filter wall 18 , while the rest of the filter wall 18 has a medium mesh size.
Gemäß der Erfindung weist die Spülmaschine vorzugsweise eine weitere Leitung 21 auf, welche mit einem Ende an der in der Spülkammer 1 ausmündenden Wasserzuleitung angeschlossen ist. Das andere Ende 22 der Leitung 21 mündet in der Laugen wanne 4 aus und trägt ein Strahlmundstück 23, welches auf den feinmaschigen Bereich 19 der Filterwand 18 gerich tet ist. Der Austrittswinkel des Strahlmundstücks 23 ist so bemessen, daß ein daraus austretender Wasserstrahl des gesamten Bereichs 19 des Filters 5 bestreicht.According to the invention, the dishwasher preferably has a further line 21 which is connected at one end to the water supply line which opens into the washing chamber 1 . The other end 22 of the line 21 opens into the tub 4 and carries a jet mouthpiece 23 , which is tet on the fine-meshed area 19 of the filter wall 18 . The exit angle of the jet mouthpiece 23 is dimensioned such that a water jet emerging therefrom covers the entire area 19 of the filter 5 .
Die Leitung 21 ist außerdem mit einer in der Zeichnung nicht dargestellten Absperreinrichtung insbesondere in Form eines Magnetventils versehen.The line 21 is also provided with a shut-off device, not shown in the drawing, in particular in the form of a solenoid valve.
Zu Beginn eines Wasch- oder Spülgangs hält das gewöhnlich als Feinfilter bezeichnete feinmaschige Filter kleinste Schmutzteilchen aus der es bei der Umwälzung über die Ansaugleitung 7 und die Umwälzpumpe 8 kontinuierlich in einer Richtung durchströmenden Waschflüssigkeit zurück. Am Ende des betreffenden Waschgangs wird die Waschflüssig keit über die Ansaugleitung 13 und die Austragspumpe 14 ausgetragen, bis der Boden 2 der Spülkammer 1 sowie die Laugenwanne 4 vollständig entleert sind. Anschließend wird das in der Leitung 21 vorhandene Magnetventil betätigt, um das Strahlmundstück 23 mit sauberem Wasser zu speisen, während die Austragspumpe 14 weiter in Betrieb bleibt.At the beginning of a washing or rinsing cycle, the fine-mesh filter, usually referred to as a fine filter, retains the smallest dirt particles from which it flows continuously in one direction when washing liquid flows through the suction line 7 and the circulation pump 8 . At the end of the washing cycle in question, the washing liquid speed is discharged via the suction line 13 and the discharge pump 14 until the bottom 2 of the washing chamber 1 and the tub 4 are completely emptied. The solenoid valve in line 21 is then actuated in order to feed the jet nozzle 23 with clean water, while the discharge pump 14 remains in operation.
Der daraufhin aus dem Mundstück austretende Wasserstrahl beaufschlagt den feinmaschigen Bereich 19 der Filterwand 18 im Gegenstrom zur Strömung der Waschflüssigkeit während des Waschgangs und reinigt ihn dadurch von sämtlichen daran haftenden Schmutzteilchen. Die auf diese Weise gelösten Schmutzteilchen fallen zum Boden des becherförmigen Filters 5 herab und werden durch die Auslaßöffnung 15 und die Ansaugleitung 13 ausgetragen.The water jet then exiting the mouthpiece acts on the fine-meshed area 19 of the filter wall 18 in countercurrent to the flow of the washing liquid during the washing cycle and thereby cleans it of all dirt particles adhering to it. The dirt particles loosened in this way fall to the bottom of the cup-shaped filter 5 and are discharged through the outlet opening 15 and the suction line 13 .
Dieses Reinigung des feinmaschigen Filterbereichs kann selbsttätig herbeigeführt werden und mehrere Male während eines Arbeitszyklus der Spülmaschine erfolgen.This cleaning of the fine-meshed filter area can are brought about automatically and several times during a dishwasher cycle.
In der in Fig. 3 dargestellten Ausführungsform sind den vorstehend beschriebenen entsprechende Teile mit den gleichen Bezugszeichen bezeichnet. In dieser abgewandelten Ausführungsform ist an der Leitung 21 eine Dreiwege-Rohr verzweigung 24 angeschlossen. An der Rohrverzweigung 24 ist jeweils das eine Ende von drei Zweigleitungen 25, 26 und 27 angeschlossen, deren andere Enden 28, 29 und 30 in der Laugenwanne 4 ausmünden.In the embodiment shown in Fig. 3, the corresponding parts described above are designated by the same reference numerals. In this modified embodiment, a three-way pipe branch 24 is connected to line 21 . One end of three branch lines 25, 26 and 27 is connected to the pipe branch 24 , the other ends 28, 29 and 30 of which open out in the tub 4 .
Da die Filterwand 18 des becherförmigen Filters 5 eine zylindrische Außenfläche hat, sind die jeweils mit einem Strahlmundstück 31, 32 bzw. 33 versehenen Enden der Zweig leitungen um ca. 120° zueinander versetzt in der Laugen wanne 4 angeordnet, so daß die aus ihnen austretenden Wasserstrahlen die gesamte Umfangsfläche der Filterwand 18 beaufschlagen.Since the filter wall 18 of the cup-shaped filter 5 has a cylindrical outer surface, the ends of the branch lines, each provided with a jet mouthpiece 31, 32 or 33 , are offset by approximately 120 ° from one another in the base tub 4 , so that those emerging from them Water jets affect the entire circumferential surface of the filter wall 18 .
Diese abgewandelte Ausführungsform hat den offensichtlichen Vorteil, daß sie die Reinigung des gesamten Filters 5, d. h. also auch seines Bereichs mittlerer Maschenweite, im Gegenstrom ermöglicht.This modified embodiment has the obvious advantage that it enables the cleaning of the entire filter 5 , that is to say also its region of medium mesh size, in countercurrent.
Fig. 4 und 5 zeigen eine weitere abgewandelte Ausführungs form der Erfindung, welche besonders für solche Fälle geeignet ist, in denen der Wasserdruck im Leitungsnetz nicht ausreicht, mehrere um das Filter 5 herum angeordnete Strahlmundstücke zu speisen. FIGS. 4 and 5 show a further modified execution form of the invention which is particularly suitable for those cases where the water pressure in the pipeline network is not sufficient, several around the filter 5 to supply arranged around beam mouthpieces.
In dieser Ausführungsform ist das becherförmige Filter 5 in der Laugenwanne 4 drehbar auf einem Zapfen 34 gelagert, welcher in der Mitte der Laugenwanne 4 senkrecht auf dem Boden d 35 derselben angebracht ist.In this embodiment, the cup-shaped filter 5 is rotatably mounted in the tub 4 on a pin 34 which is mounted in the middle of the tub 4 perpendicular to the bottom d 35 thereof.
Das Filter 5 hat am unteren Teil eine Nabe 36, mit welcher es auf dem Zapfen 34 gelagert ist und welche durch Flügel 37 abgestützt ist. Die Abstände zwischen den Flügeln sind so bemessen, daß die Waschflüssigkeit und darin mitgeführte Schmutzteilchen dazwischen hindurch abfließen können.The filter 5 has on the lower part a hub 36 with which it is mounted on the pin 34 and which is supported by vanes 37 . The distances between the wings are dimensioned so that the washing liquid and dirt particles carried therein can flow through between them.
Das Filter 5 ist mittels eines Antriebs 38 in Drehung versetzbar, um seine Filterwand frontal auf das Strahl mundstück ausrichten zu können.The filter 5 can be set in rotation by means of a drive 38 in order to be able to align its filter wall frontally on the jet mouthpiece.
In dieser Ausführungsform ist das Endstück 22 der Leitung 21 mit dem dazugehörigen Strahlmundstück 23 vorzugsweise derart in der Laugenwanne 4 angeordnet, daß der austre tende Wasserstrahl die Umfangsfläche des Filters 5 tangential beaufschlagt. Der vorstehend genannte Antrieb mittels dessen das Filter 5 in Drehung versetzbar ist, ist in dieser Ausführungsform somit durch den tangential auf die Filterwand 18 gerichteten Wasserstrahl gebildet.In this embodiment, the end piece 22 of the line 21 with the associated jet mouthpiece 23 is preferably arranged in the tub 4 such that the water jet exiting tangentially impinges the peripheral surface of the filter 5 . The above-mentioned drive by means of which the filter 5 can be set in rotation is thus formed in this embodiment by the water jet directed tangentially onto the filter wall 18 .
Daraus ergibt sich der Vorteil, daß die gesamte Oberfläche der Filterwand, d. h. sowohl der feinmaschige Bereich als auch der Bereich mittlerer Maschenweite, von dem sauberen Wasserstrahl beaufschlagt wird.This gives the advantage that the entire surface the filter wall, d. H. both the fine-meshed area as also the area of medium mesh size, from the clean Water jet is applied.
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3745169A DE3745169C2 (en) | 1986-11-13 | 1987-07-17 | Operating dishwasher in work cycle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT22327/86A IT1197983B (en) | 1986-11-13 | 1986-11-13 | WASHING CYCLE FOR WASHING MACHINES, IN PARTICULAR DISHWASHER AND WASHING MACHINE OPERATING ACCORDING TO SUCH CYCLE |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3723721A1 true DE3723721A1 (en) | 1988-05-26 |
DE3723721C2 DE3723721C2 (en) | 1998-08-20 |
Family
ID=11194723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3723721A Expired - Fee Related DE3723721C2 (en) | 1986-11-13 | 1987-07-17 | dishwasher |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE3723721C2 (en) |
IT (1) | IT1197983B (en) |
Cited By (42)
Publication number | Priority date | Publication date | Assignee | Title |
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DE4131914A1 (en) * | 1991-09-25 | 1993-04-01 | Licentia Gmbh | Sieve combination for domestic dishwasher - has inside fine sieve cylinder provided with cover and centrally around coarse sieve axially rotatable conical micro-sieve |
DE4200416A1 (en) * | 1992-01-10 | 1993-07-15 | Licentia Gmbh | Divided-flow filter combination for domestic dishwashing machine - optimises self-cleaning by directing separate flows of rinsing water at inclined and vertical sections of fine filter. |
DE4433842C1 (en) * | 1994-09-22 | 1996-03-21 | Bauknecht Hausgeraete | Device for washing dishes in a dishwasher |
EP0748607A2 (en) * | 1995-06-14 | 1996-12-18 | SMEG S.p.A. | Device for controlling the washing of the filter of a dishwasher |
EP0752231A1 (en) * | 1995-07-06 | 1997-01-08 | Merloni Elettrodomestici S.p.A. | Dishwashing machine with improved filtering system, and filtering method thereof |
US5609172A (en) * | 1995-01-07 | 1997-03-11 | Lg Electronics Inc. | Washing water filtering apparatus for dish washing machine |
US5700329A (en) * | 1996-05-22 | 1997-12-23 | White Consolidated Industries, Inc. | Filter standpipe for dishwasher |
US5730805A (en) * | 1996-08-08 | 1998-03-24 | Whirlpool Corporation | Dishwasher filter back-wash system independent from lower wash arm |
EP0774230A3 (en) * | 1995-11-14 | 1998-07-01 | CANDY S.p.A. | A washing cycle for a washing machine |
EP0855165A2 (en) * | 1997-01-22 | 1998-07-29 | SMEG S.p.A. | Improved filtering device for dishwashers |
WO2006092195A1 (en) * | 2005-02-28 | 2006-09-08 | Meiko Maschinenbau Gmbh & Co. Kg | Multi-tank dishwasher comprising a backwash device |
DE10031038B4 (en) * | 2000-06-16 | 2006-09-21 | Pharmagg Systemtechnik Gmbh | A method for separating contaminants from a liquid for washing laundry in a continuous washing machine |
EP1862104A1 (en) * | 2006-05-30 | 2007-12-05 | Electrolux Home Products Corporation N.V. | Method for cleaning the filter of a dishwasher and dishwasher for carrying out the same |
EP2213217A1 (en) * | 2009-01-29 | 2010-08-04 | Electrolux Home Products Corporation N.V. | Dishwasher and method for cleaning a filter provided between a tub and a sump of a dishwasher |
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US9861251B2 (en) | 2011-06-20 | 2018-01-09 | Whirlpool Corporation | Filter with artificial boundary for a dishwashing machine |
US9918609B2 (en) | 2009-12-21 | 2018-03-20 | Whirlpool Corporation | Rotating drum filter for a dishwashing machine |
DE102018217915A1 (en) * | 2018-10-19 | 2020-04-23 | BSH Hausgeräte GmbH | Household dishwasher with a self-cleaning filter system |
US10653291B2 (en) | 2011-06-20 | 2020-05-19 | Whirlpool Corporation | Ultra micron filter for a dishwasher |
US12232677B2 (en) | 2022-09-12 | 2025-02-25 | Haier Us Appliance Solutions, Inc. | Filter cleaning assembly for a dishwasher appliance |
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DE4200416A1 (en) * | 1992-01-10 | 1993-07-15 | Licentia Gmbh | Divided-flow filter combination for domestic dishwashing machine - optimises self-cleaning by directing separate flows of rinsing water at inclined and vertical sections of fine filter. |
DE4433842C1 (en) * | 1994-09-22 | 1996-03-21 | Bauknecht Hausgeraete | Device for washing dishes in a dishwasher |
EP0702928A1 (en) | 1994-09-22 | 1996-03-27 | Whirlpool Europe B.V. | Method of rinsing in a dishwasher and device for carrying out the method |
US5711325A (en) * | 1994-09-22 | 1998-01-27 | Whirlpool Europe B.V. | Method of rinsing in a dishwasher and device for carrying out the method |
US5609172A (en) * | 1995-01-07 | 1997-03-11 | Lg Electronics Inc. | Washing water filtering apparatus for dish washing machine |
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EP0774230A3 (en) * | 1995-11-14 | 1998-07-01 | CANDY S.p.A. | A washing cycle for a washing machine |
US5700329A (en) * | 1996-05-22 | 1997-12-23 | White Consolidated Industries, Inc. | Filter standpipe for dishwasher |
US5730805A (en) * | 1996-08-08 | 1998-03-24 | Whirlpool Corporation | Dishwasher filter back-wash system independent from lower wash arm |
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US7935195B2 (en) | 2005-02-28 | 2011-05-03 | Meiko Maschinenbau Gmbh & Co Kg | Multi-tank dishwasher comprising a backwash device |
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Also Published As
Publication number | Publication date |
---|---|
IT1197983B (en) | 1988-12-21 |
DE3723721C2 (en) | 1998-08-20 |
IT8622327A0 (en) | 1986-11-13 |
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