EP2319978A1 - Washing machine with pump for recirculation - Google Patents

Washing machine with pump for recirculation Download PDF

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Publication number
EP2319978A1
EP2319978A1 EP09401032A EP09401032A EP2319978A1 EP 2319978 A1 EP2319978 A1 EP 2319978A1 EP 09401032 A EP09401032 A EP 09401032A EP 09401032 A EP09401032 A EP 09401032A EP 2319978 A1 EP2319978 A1 EP 2319978A1
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EP
European Patent Office
Prior art keywords
housing part
washing machine
connecting piece
machine according
disc
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
EP09401032A
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German (de)
French (fr)
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EP2319978B1 (en
Inventor
Michael Finke
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.)
Miele und Cie KG
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Miele und Cie KG
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 Miele und Cie KG filed Critical Miele und Cie KG
Priority to ES09401032T priority Critical patent/ES2383244T3/en
Priority to AT09401032T priority patent/ATE551464T1/en
Priority to EP09401032A priority patent/EP2319978B1/en
Publication of EP2319978A1 publication Critical patent/EP2319978A1/en
Application granted granted Critical
Publication of EP2319978B1 publication Critical patent/EP2319978B1/en
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/10—Filtering arrangements

Definitions

  • the invention relates to a washing machine with a tub arranged in a housing in which a drum is rotatably mounted, wherein in the wall of the tub, a drain opening is provided, via which by means of a pump, the washing liquid in the drum is umpumpbar.
  • a washing machine which is equipped with a pump for pumping over the washing liquid.
  • the pump can also be pumped around during the washing operation.
  • the liquor is pumped out of the tub during washing and returned to the drum at a higher point.
  • the invention thus raises the problem of developing a washing machine in such a way, in particular, a higher efficiency of the flooding of the washing liquid is given during the washing activity.
  • rotatable disc is present, which is in operative connection with the pump.
  • the disk has one or more filter areas and passage areas.
  • the disc is inserted between a Gezzausober- and a housing base.
  • three openings or nozzles are provided, wherein the first nozzle is connected to the drain of the tub and the second with a channel in the tub, through which the liquor is conveyed to the door seal, from where it is injected into the laundry.
  • the third nozzle leads through a hose to the drain of the washing machine.
  • At the bottom of the housing are also three connections, where the first leads to the entrance of the pump. The other two are connected to the pump outlet.
  • the first position of the rotatable disc of the first neck of the upper part corresponds via a filter surface with the first neck of the lower part.
  • the second neck of the upper part corresponds to the second neck of the lower part.
  • the liquor is flooded.
  • the first neck of the upper part still corresponds to the first neck of the lower part due to the size of the filter in between.
  • This filter surface is then backwashed from behind and the debris such as lint or debris is forced into the drain. The pump is thus protected from foreign bodies. Because the filter areas in the disc are cleaned with each pumping process.
  • the filter disc rotates by 90 ° with each change in position, the first and third positions and the second and fourth positions are structurally the same.
  • the upper housing part is formed by the described filter through the underside of the tub.
  • the lower housing part is then an extension of the intake of the heating pump, in which then the branch of the output nozzle of the pump is integrated. Due to this design it is achieved that in addition to a good moisture and the treatment of the detergent liquid takes place, which in particular also has a lower energy consumption.
  • the self-cleaning filter device is arranged between the drain opening of the tub and the suction nozzle of the pump, by means of which in addition to the cleaning of the washing liquid in the tub and the flooding of the washing liquid.
  • the filter device as such is arranged directly on the wall of the tub in order to keep in particular the heat loss of the washing liquid low.
  • the filter device itself consists, as already described, of a disk rotatably mounted in a housing.
  • the disk has an outer radius on which extend at least two crescent-shaped arranged filter areas.
  • the disc has a further inner radius, on which the two openings are arranged, on the one hand, the circulating washing liquid is conveyed, and the cleaning of the filter areas is carried out.
  • the crescent-shaped filter areas are arranged mirror-symmetrically on the outer radius, wherein the openings are located on the inner radius opposite between the crescent-shaped areas.
  • the housing consists expediently of an upper housing part and a lower housing part, which receive the rotatably mounted disc between them and enclose sealing.
  • a central axis of the turntable is a on both sides of the Disc extending drive shaft arranged, which is mounted in the upper housing part and lower housing part.
  • first and the third connecting piece are arranged on the outer radius corresponding to the disc, and wherein the second connecting piece is located on the inner radius corresponding to the disc.
  • the first and the second connecting piece from the upper housing part and lower housing part are arranged in alignment with each other on the housing, wherein the pump is arranged between the first connecting piece and the second connecting piece of the lower housing part.
  • the suction side interacts with the first connection piece and the pressure side with the second connection piece.
  • the pump is designed, depending on the orientation of its conveying direction, either to effect flooding or to pump out the liquor from the tub.
  • the third connecting piece from the upper housing part cooperates with a groove formed in the lower housing part, which establishes a connection to the second connecting piece on the lower housing part.
  • This compound is provided in particular for cleaning or for purging of lint adhering to the filter area, which settle on the filter surface as a result of pumping.
  • the channel effects a reversal of the wash fluid scavenging flow through the filter areas as the pump down process occurs.
  • the third connection piece from the upper housing part is therefore intended for pumping out the washing liquid with discharge of the filter cake, in which case the discharge of the lint, the so-called filter cake, takes place via the molded-in channel in the lower part of the housing part.
  • the two mutually aligned connection piece of the upper housing part and the lower housing part are provided for flooding the washing liquid with filtration in the drum. So if the filter surface between the arranged on the outer radius nozzle, so the filtering is performed in which the pump sucks the washing liquid from the tub and cleans them through the filter before returning to the arranged on the inner radius nozzle in the Drum is returned.
  • FIG. 1 shows in the partially sectioned view of a lower portion of a washing machine 1, wherein in a housing a tub 2 is arranged, in which a drum 3 is rotatably mounted.
  • a drain opening 5 is provided in the wall 4 of the tub 2.
  • the indicated washing liquid 7 is pumped off by means of a pump 6, wherein it is guided back into the drum 3 during pumping.
  • a self-cleaning filter device 9 is arranged between the drain opening 5 of the tub 2 and a suction nozzle 8 of the pump 6, by means of which in addition to the cleaning of the washing liquid 7 in the tub 2 and the flooding, as shown, the washing liquid 7 back into the drum 3 can.
  • the filter device 9 is in this case arranged directly on the wall 4 of the tub 2.
  • the filter device 9 consists of a rotatably mounted in a housing 10 disc 11.
  • the disc 11 has an outer radius 12, on which extend at least two crescent-shaped filter regions 13.1, 13.2, wherein the disc 11 has a further inner radius 14, on which two openings 16.1, 16.2 are arranged.
  • the crescent-shaped filter regions 13.1, 13.2 are arranged on the outer radius 12 mirror-symmetrically to each other, the openings 15.1, 15.2 lying on the inner radius 14 opposite between the crescent-shaped filter areas 13.1, 13.2.
  • the housing 10 in this case consists of an upper housing part 16 and a lower housing part 17, which surround the rotatably mounted disc 11 sealing and enclose, as shown in the FIG. 3 is shown.
  • a central axis 18 of the disc 11 is arranged on both sides of the disc 11 extending drive shaft 19 which is mounted in the upper housing part 16 and the lower housing part 17.
  • the disc 11 is rotated depending on the washing process, so that pumped over the filter device 9 either the washing liquid 7 or the washing liquid 7 is pumped out.
  • FIG. 3 and 4 show are on the upper housing part 16 three Connecting pieces 20.1, 20.2 and 20.3 are arranged, wherein the first and the third connection piece 20.1 and 20.3 are arranged on the outer radius 12 corresponding to the disc 11, and the second connection piece 20.2 is arranged on a corresponding inner disk 14 to the inner radius 14.
  • This arrangement is particularly clear in the exploded view, where here indicate the dashed lines, where the position of the connecting pieces 20.1, 20.2, 20.3 are integrally formed on the upper housing part 16.
  • the pump 6 is arranged between the first connecting piece 21.1 and the second connecting piece 21.2 of the housing lower part 17, the suction side of which cooperates with the first connecting piece 21.1 and the pressure side with the second connecting piece 21.2.
  • the pumping action is directed from the outer radius 12 to the inner radius 14.
  • the third connection piece 20.3 from the upper housing part 16 cooperates with an integrally formed in the lower housing part 17 groove 22, in particular in the FIG. 4 in the perspective, explosive representation is closer to recognize.
  • the channel 22 in this case establishes a connection between the second connecting piece 21.2 on the housing lower part 17 in such a way that it produces a fluidic connection to the connecting piece 20.3 within the housing 10, that is to say that the outer radius 12 can be accessed here via the channel 22, on which in particular the crescent-shaped filter areas 13.1 and 13.2 are located.
  • the washing liquid 7 thus can be pumped from the inside to the outside via the third connecting piece 20.3 from the upper housing part 16 with discharge of the filter cake. If the washing liquid 7 is sucked over the connecting piece 20.1 of the upper housing part 16 and over the crescent-shaped filter surface 13.2, a filter cake is formed on the upper side of the crescent-shaped area 13.2. In this position, as in the FIG. 5 is shown, the washing liquid 7 is cleaned and pumped around at the same time, especially since in this situation, the opening 15.1 in the disc 11 with the connecting pieces 20.2 and 21.2 assumes an aligned position.
  • the area 23 between the crescent-shaped filter areas 13.1 and 13.2 on the outer radius 12 prevents the washing liquid 7 from flowing off via the connecting piece 20.2, so that, if the corresponding filter areas are the same Pumping the washing liquid 7 is pressed below the disc 11 via the channel 22, so that then the washing liquid 7 below the crescent-shaped region 13.1, 13.2 emerges and thus discharges the filter cake above the connection piece 20.3.
  • This situation is particular in the FIG. 6 where it is shown that the washing liquid 7 is guided here via the channel 22, so that the filter cake is discharged above the filter area 13.1, 13.2.
  • a filter device 9 is provided which performs a self-cleaning, in which the disc 11 is rotated in accordance with the washing program.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

The washing machine (1) comprises a liquor container (2) arranged in a housing, where a drum (3) is rotatably mounted in the liquor container. A self-cleaning filter device (9) is arranged between a drain opening (5) of the liquor container and an intake port (8) of a pump (6). The filter device is arranged directly to the wall (4) of the liquor container.

Description

Waschmaschine mit Pumpe zum UmflutenWashing machine with pump to flood

Die Erfindung betrifft eine Waschmaschine mit einem in einem Gehäuse angeordneten Laugenbehälter in dem eine Trommel drehbar gelagert ist, wobei in der Wand des Laugenbehälters eine Ablauföffnung vorgesehen ist, über die mittels einer Pumpe die Waschflüssigkeit in der Trommel umpumpbar ist.The invention relates to a washing machine with a tub arranged in a housing in which a drum is rotatably mounted, wherein in the wall of the tub, a drain opening is provided, via which by means of a pump, the washing liquid in the drum is umpumpbar.

Aus dem Stand der Technik, gemäß der US 3,738,126 und der US 7,406,843 , ist eine Waschmaschine bekannt, die mit einer Pumpe zum Umpumpen der Waschflüssigkeit ausgerüstet ist. Mit der Pumpe kann neben dem Abpumpen der Waschflüssigkeit auch ein Umpumpen während des Waschbetriebs erfolgen. Bei dem Umpumpvorgang wird während der Waschtätigkeit die Lauge aus dem Laugenbehälter abgepumpt und wieder an einer höheren Stelle in die Trommel zurückgeführt. Somit wird während des Waschvorganges eine verbesserte Durchfeuchtung der Wäsche mit der Waschflüssigkeit erreicht.From the prior art, according to the US 3,738,126 and the US 7,406,843 , a washing machine is known, which is equipped with a pump for pumping over the washing liquid. In addition to the pumping off of the washing liquid, the pump can also be pumped around during the washing operation. During the pumping process, the liquor is pumped out of the tub during washing and returned to the drum at a higher point. Thus, an improved moisture penetration of the laundry with the washing liquid is achieved during the washing process.

Bei dieser aus dem Stand der Technik bekannten Umflutung der Waschflüssigkeit wird es als nachteilig angesehen, dass insbesondere die bekannte Pumpe eine schlechte Durchfeuchtung und ein schlechtes Waschergebnis aufweist, wobei die Bauteile des Standes der Technik einen hohen Energieverbrauch haben.In this known from the prior art flooding of the washing liquid, it is considered disadvantageous that in particular the known pump has a poor moisture penetration and a poor washing result, wherein the components of the prior art have a high energy consumption.

Der Erfindung stellt sich somit das Problem, eine Waschmaschine derart weiterzubilden, bei der insbesondere eine höhere Effizienz des Umflutens der Waschflüssigkeit während der Waschtätigkeit gegeben ist.The invention thus raises the problem of developing a washing machine in such a way, in particular, a higher efficiency of the flooding of the washing liquid is given during the washing activity.

Erfindungsgemäß wird dieses Problem durch die Merkmale des Patentanspruchs 1 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den nachfolgenden Unteransprüchen.According to the invention, this problem is solved by the features of patent claim 1. Advantageous embodiments and further developments of the invention will become apparent from the following subclaims.

Die mit der Erfindung erreichbaren Vorteile bestehen darin, dass als zentrales Element eine als Filtereinrichtung ausgebildete, drehbare Scheibe vorhanden ist, die mit der Pumpe in Wirkverbindung steht. Die Scheibe weist hierzu einen oder mehrere Filterbereiche und Durchlassbereiche auf. Die Scheibe ist zwischen einem Gehäuseober- und einem Gehäuseunterteil eingesetzt. Am Gehäuseoberteil sind drei Öffnungen bzw. Stutzen vorgesehen, wobei der erste Stutzen mit dem Ablauf des Laugenbehälters verbunden ist und der Zweite mit einem Kanal im Laugenbehälter, durch den die Lauge zum Türdichtring gefördert wird, von wo aus sie in die Wäsche gespritzt wird. Der dritte Stutzen führt über einen Schlauch zum Ablauf der Waschmaschine. Am Gehäuseunterteil sind ebenfalls drei Anschlüsse, wobei der erste zum Eingang der Pumpe führt. Die beiden anderen sind mit dem Pumpenausgang verbunden. In der ersten Stellung der drehbaren Scheibe korrespondiert der erste Stutzen des Oberteils über eine Filterfläche mit dem ersten Stutzen des Unterteils. Der zweite Stutzen des Oberteils korrespondiert mit dem zweiten Stutzen des Unterteils. In dieser Stellung wird die Lauge umflutet. In der zweiten Stellung der Scheibe korrespondiert der erste Stutzen des Oberteils aufgrund der Größe des dazwischen liegenden Filters immer noch mit dem ersten Stutzen des Unterteils. Jetzt korrespondiert aber der dritte Stutzen des Oberteils über eine zweite Filterfläche mit dem dritten Stutzen des Oberteils. In dieser Stellung wird abgepumpt. Diese Filterfläche wird dann von hinten rückgespült und der Schmutz, wie Flusen oder Fremdkörper werden in den Abfluss gedrückt. Die Pumpe wird somit vor Fremdkörpern geschützt. Denn die Filterbereiche in der Scheibe werden mit jedem Abpumpvorgang gereinigt. Die Filterscheibe dreht sich bei jeder Positionsänderung um 90°, wobei die erste und dritte Stellung und die zweite und vierte Stellung konstruktionstechnisch gleich sind. Zweckmäßigerweise wird das Gehäuseoberteil von dem beschriebenen Filter durch die Unterseite des Laugenbehälters gebildet. Das Gehäuseunterteil ist dann eine Erweiterung des Ansaugstutzens der Heizungspumpe, in den dann auch die Verzweigung des Ausgangsstutzens der Pumpe integriert ist. Aufgrund dieser Ausbildung wird erreicht, dass insbesondere neben einer guten Durchfeuchtung auch die Aufbereitung der Waschmittelflüssigkeit erfolgt, was insbesondere auch einen geringeren Energieverbrauch zur Folge hat.The achievable with the invention advantages are that as a central element designed as a filter device, rotatable disc is present, which is in operative connection with the pump. For this purpose, the disk has one or more filter areas and passage areas. The disc is inserted between a Gehäusober- and a housing base. At the upper housing part, three openings or nozzles are provided, wherein the first nozzle is connected to the drain of the tub and the second with a channel in the tub, through which the liquor is conveyed to the door seal, from where it is injected into the laundry. The third nozzle leads through a hose to the drain of the washing machine. At the bottom of the housing are also three connections, where the first leads to the entrance of the pump. The other two are connected to the pump outlet. In the first position of the rotatable disc of the first neck of the upper part corresponds via a filter surface with the first neck of the lower part. The second neck of the upper part corresponds to the second neck of the lower part. In this position, the liquor is flooded. In the second position of the disc, the first neck of the upper part still corresponds to the first neck of the lower part due to the size of the filter in between. But now corresponds to the third neck of the upper part of a second filter surface with the third neck of the upper part. In this position is pumped out. This filter surface is then backwashed from behind and the debris such as lint or debris is forced into the drain. The pump is thus protected from foreign bodies. Because the filter areas in the disc are cleaned with each pumping process. The filter disc rotates by 90 ° with each change in position, the first and third positions and the second and fourth positions are structurally the same. Conveniently, the upper housing part is formed by the described filter through the underside of the tub. The lower housing part is then an extension of the intake of the heating pump, in which then the branch of the output nozzle of the pump is integrated. Due to this design it is achieved that in addition to a good moisture and the treatment of the detergent liquid takes place, which in particular also has a lower energy consumption.

Erfindungsgemäß ist hierbei zwischen der Ablauföffnung des Laugenbehälters und dem Ansaugstutzen der Pumpe die selbstreinigende Filtereinrichtung angeordnet, mittels der neben der Reinigung der Waschflüssigkeit in dem Laugenbehälter auch die Umflutung der Waschflüssigkeit erfolgt. Die Filtereinrichtung als solches ist unmittelbar an der Wand des Laugenbehälters angeordnet, um insbesondere den Wärmeverlust der Waschflüssigkeit gering zu halten. Die Filtereinrichtung selbst besteht, wie bereits beschrieben, aus einer in einem Gehäuse drehbar gelagerten Scheibe. Die Scheibe weist einen äußeren Radius auf, auf den sich wenigstens zwei sichelförmige angeordnete Filterbereiche erstrecken. Zudem weist die Scheibe einen weiteren inneren Radius auf, auf dem die zwei Öffnungen angeordnet sind, über die zum Einen die umflutende Waschflüssigkeit gefördert wird, bzw. die Reinigung der Filterbereiche vorgenommen wird. Dabei sind die sichelförmigen Filterbereiche auf dem äußeren Radius spiegelsymmetrisch angeordnet, wobei die Öffnungen auf dem inneren Radius gegenüberliegend zwischen den sichelförmigen Bereichen liegen.According to the invention, the self-cleaning filter device is arranged between the drain opening of the tub and the suction nozzle of the pump, by means of which in addition to the cleaning of the washing liquid in the tub and the flooding of the washing liquid. The filter device as such is arranged directly on the wall of the tub in order to keep in particular the heat loss of the washing liquid low. The filter device itself consists, as already described, of a disk rotatably mounted in a housing. The disk has an outer radius on which extend at least two crescent-shaped arranged filter areas. In addition, the disc has a further inner radius, on which the two openings are arranged, on the one hand, the circulating washing liquid is conveyed, and the cleaning of the filter areas is carried out. Here, the crescent-shaped filter areas are arranged mirror-symmetrically on the outer radius, wherein the openings are located on the inner radius opposite between the crescent-shaped areas.

Das Gehäuse besteht in zweckmäßiger Weise aus einem Gehäuseoberteil und einem Gehäuseunterteil, welche die drehbar gelagerte Scheibe zwischen sich aufnehmen und dichtend umschließen. In einer Zentralachse der Drehscheibe ist eine sich beidseits der Scheibe erstreckende Antriebswelle angeordnet, welche im Gehäuseoberteil und Gehäuseunterteil gelagert ist.The housing consists expediently of an upper housing part and a lower housing part, which receive the rotatably mounted disc between them and enclose sealing. In a central axis of the turntable is a on both sides of the Disc extending drive shaft arranged, which is mounted in the upper housing part and lower housing part.

Dabei sind an dem Gehäuseoberteil drei Anschlussstutzen angeordnet, wobei der erste und der dritte Anschlussstutzen auf dem zur Scheibe korrespondierenden äußeren Radius angeordnet sind, und wobei der zweite Anschlussstutzen auf dem zur Scheibe korrespondierenden inneren Radius liegt. An dem Gehäuseunterteil sind nur zwei Anschlussstutzen angeordnet, wobei ein erster Anschlussstutzen auf dem zur Scheibe korrespondierenden äußeren Radius angeordnet ist, und wobei der zweite Anschlussstutzen auf dem zur Scheibe korrespondierenden inneren Radius liegt. Jeweils der erste und der zweite Anschlussstutzen vom Gehäuseoberteil und Gehäuseunterteil sind fluchtend zueinander am Gehäuse angeordnet, wobei zwischen dem ersten Anschlussstutzen und dem zweiten Anschlussstutzen des Gehäuseunterteils die Pumpe angeordnet ist. Dabei wirkt die Saugseite mit dem ersten Anschlussstutzen und die Druckseite mit dem zweiten Anschlussstutzen zusammen. Die Pumpe ist dazu ausgebildet, je nach Ausrichtung ihrer Förderrichtung entweder die Umflutung, oder ein Abpumpen der Laugenflüssigkeit aus dem Laugenbehälter zu bewirken.In this case, three connecting pieces are arranged on the upper housing part, wherein the first and the third connecting piece are arranged on the outer radius corresponding to the disc, and wherein the second connecting piece is located on the inner radius corresponding to the disc. At the lower housing part only two connecting pieces are arranged, wherein a first connecting piece is arranged on the outer radius corresponding to the disc, and wherein the second connecting piece is located on the inner radius corresponding to the disc. In each case, the first and the second connecting piece from the upper housing part and lower housing part are arranged in alignment with each other on the housing, wherein the pump is arranged between the first connecting piece and the second connecting piece of the lower housing part. The suction side interacts with the first connection piece and the pressure side with the second connection piece. The pump is designed, depending on the orientation of its conveying direction, either to effect flooding or to pump out the liquor from the tub.

In Weiterbildung der Erfindung wirkt der dritte Anschlussstutzen vom Gehäuseoberteil mit einer im Gehäuseunterteil eingeformten Rinne zusammen, die eine Verbindung zum zweiten Anschlussstutzen am Gehäuseunterteil herstellt. Diese Verbindung ist insbesondere zur Reinigung bzw. zum Freispülen von am Filterbereich haftender Flusen vorgesehen, die sich infolge des Umpumpens an der Filterfläche festsetzen. Somit bewirkt die Rinne eine Umkehrung der Waschflüssigkeitsspülungs-Strömung durch die Filterbereiche, wenn der Abpumpvorgang sich einstellt. Der dritte Anschlussstutzen vom Gehäuseoberteil ist daher zum Abpumpen der Waschflüssigkeit mit Austrag des Filterkuchens bestimmt, wobei dann der Austrag der Flusen, des sogenannten Filterkuchens, über die eingeformte Rinne im Unterteil des Gehäuseteils erfolgt. Die beiden zueinander fluchtenden Anschlussstutzen von Gehäuseoberteil und Gehäuseunterteil sind zur Umflutung der Waschflüssigkeit mit Filtrierung in der Trommel vorgesehen. Befindet sich also die Filterfläche zwischen den auf dem äußeren Radius angeordneten Stutzen, so wird die Filterung vorgenommen, in dem die Pumpe aus dem Laugenbehälter die Waschflüssigkeit ansaugt und sie über den Filter reinigt, bevor sie wieder über die auf dem inneren Radius angeordneten Stutzen in die Trommel zurückgeführt wird.In a further development of the invention, the third connecting piece from the upper housing part cooperates with a groove formed in the lower housing part, which establishes a connection to the second connecting piece on the lower housing part. This compound is provided in particular for cleaning or for purging of lint adhering to the filter area, which settle on the filter surface as a result of pumping. Thus, the channel effects a reversal of the wash fluid scavenging flow through the filter areas as the pump down process occurs. The third connection piece from the upper housing part is therefore intended for pumping out the washing liquid with discharge of the filter cake, in which case the discharge of the lint, the so-called filter cake, takes place via the molded-in channel in the lower part of the housing part. The two mutually aligned connection piece of the upper housing part and the lower housing part are provided for flooding the washing liquid with filtration in the drum. So if the filter surface between the arranged on the outer radius nozzle, so the filtering is performed in which the pump sucks the washing liquid from the tub and cleans them through the filter before returning to the arranged on the inner radius nozzle in the Drum is returned.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen rein schematisch dargestellt und wird nachfolgend näher beschrieben. Es zeigen:

Figur 1
eine teilweise geschnittene Ansicht des Laugenbehälters mit innen liegender Trommel und angesetzter Filtriereinrichtung;
Figur 2
eine Unteransicht unter den Laugenbehälter mit Pumpe und Filtriereinrichtung;
Figur 3
eine perspektivische Darstellung der Filtriereinrichtung in isolierter Ansicht;
Figur 4
eine explosionsartige Darstellung der Filtriereinrichtung;
Figur 5
eine erste geschnittene Ansicht der Filtriereinrichtung, gemäß der Schnittlinie A - A in Figur 3 und
Figur 6
eine weitere geschnittene Ansicht der Filtriereinrichtung gemäß der Schnittlinie B - B in Figur 3.
An embodiment of the invention is shown purely schematically in the drawings and will be described in more detail below. Show it:
FIG. 1
a partially sectioned view of the tub with an internal drum and attached filtration device;
FIG. 2
a bottom view under the tub with pump and filtration device;
FIG. 3
a perspective view of the filter device in an isolated view;
FIG. 4
an exploded view of the filtration device;
FIG. 5
a first sectional view of the filtration device, according to the section line A - A in FIG. 3 and
FIG. 6
a further sectional view of the filtration device according to the section line B - B in FIG. 3 ,

Die Figur 1 zeigt in der teilweise geschnittenen Ansicht einen unteren Teilbereich einer Waschmaschine 1, bei der in einem Gehäuse ein Laugenbehälter 2 angeordnet ist, in dem eine Trommel 3 drehbar gelagert ist. Dabei ist in der Wand 4 des Laugenbehälters 2 eine Ablauföffnung 5 vorgesehen. Über die Ablauföffnung 5 wird mittels einer Pumpe 6 die angedeutete Waschflüssigkeit 7 abgepumpt, wobei sie beim Umpumpen wieder zurück in die Trommel 3 geführt wird. Dabei ist zwischen der Ablauföffnung 5 des Laugenbehälters 2 und einem Ansaugstutzen 8 der Pumpe 6 eine selbstreinigende Filtereinrichtung 9 angeordnet, mittels der neben der Reinigung der Waschflüssigkeit 7 in dem Laugenbehälter 2 auch die Umflutung, wie dargestellt, der Waschflüssigkeit 7 in die Trommel 3 zurück erfolgen kann. Die Filtereinrichtung 9 ist hierbei unmittelbar an der Wand 4 des Laugenbehälters 2 angeordnet. Wie insbesondere aus der Zusammenschau der Figuren 3 und 4 zu erkennen ist, besteht die Filtereinrichtung 9 aus einer in einem Gehäuse 10 drehbar gelagerten Scheibe 11. In der explosionsartigen Darstellung der Figur 4 ist zu erkennen, dass die Scheibe 11 einen äußeren Radius 12 aufweist, auf dem sich wenigstens zwei sichelförmig angeordnete Filterbereiche 13.1, 13.2 erstrecken, wobei die Scheibe 11 einen weiteren inneren Radius 14 aufweist, auf dem zwei Öffnungen 16.1, 16.2 angeordnet sind. Dabei sind die sichelförmigen Filterbereiche 13.1, 13.2 auf dem äußeren Radius 12 spiegelsymmetrisch zueinander angeordnet, wobei die Öffnungen 15.1, 15.2 auf dem inneren Radius 14 gegenüberliegend zwischen den sichelförmigen Filterbereichen 13.1, 13.2 liegen.The FIG. 1 shows in the partially sectioned view of a lower portion of a washing machine 1, wherein in a housing a tub 2 is arranged, in which a drum 3 is rotatably mounted. In this case, a drain opening 5 is provided in the wall 4 of the tub 2. Via the drain opening 5, the indicated washing liquid 7 is pumped off by means of a pump 6, wherein it is guided back into the drum 3 during pumping. In this case, a self-cleaning filter device 9 is arranged between the drain opening 5 of the tub 2 and a suction nozzle 8 of the pump 6, by means of which in addition to the cleaning of the washing liquid 7 in the tub 2 and the flooding, as shown, the washing liquid 7 back into the drum 3 can. The filter device 9 is in this case arranged directly on the wall 4 of the tub 2. As in particular from the synopsis of Figures 3 and 4 can be seen, the filter device 9 consists of a rotatably mounted in a housing 10 disc 11. In the exploded view of FIG. 4 It can be seen that the disc 11 has an outer radius 12, on which extend at least two crescent-shaped filter regions 13.1, 13.2, wherein the disc 11 has a further inner radius 14, on which two openings 16.1, 16.2 are arranged. The crescent-shaped filter regions 13.1, 13.2 are arranged on the outer radius 12 mirror-symmetrically to each other, the openings 15.1, 15.2 lying on the inner radius 14 opposite between the crescent-shaped filter areas 13.1, 13.2.

Das Gehäuse 10 besteht hierbei aus einem Gehäuseoberteil 16 und einem Gehäuseunterteil 17, welche die drehbar gelagerte Scheibe 11 dichtend einfassen und umschließen, wie dies in der Figur 3 dargestellt ist. Wie aus der Figur 4 zu erkennen ist, ist in einer Zentralachse 18 der Scheibe 11 eine sich beidseits der Scheibe 11 erstreckende Antriebswelle 19 angeordnet, welche im Gehäuseoberteil 16 und im Gehäuseunterteil 17 gelagert ist. Über diese Antriebswelle 19 wird die Scheibe 11 je nach Waschvorgang gedreht, so dass über die Filtereinrichtung 9 entweder die Waschflüssigkeit 7 umpumpt oder die Waschflüssigkeit 7 abgepumpt wird. Wie die Figuren 3 und 4 zeigen, sind an dem Gehäuseoberteil 16 drei Anschlussstutzen 20.1, 20.2 und 20.3 angeordnet, wobei der erste und der dritte Anschlussstutzen 20.1 und 20.3 auf dem zur Scheibe 11 korrespondierenden äußeren Radius 12 angeordnet sind, und der zweite Anschlussstutzen 20.2 auf einem zur Scheibe 11 korrespondierenden inneren Radius 14 angeordnet ist. Diese Anordnung wird insbesondere deutlich in der explosionsartigen Darstellung, wo hier die gestrichelten Linien andeuten, wo die Lage der Anschlussstutzen 20.1, 20.2, 20.3 an dem Gehäuseoberteil 16 angeformt sind. Weiter ist aus den Figuren 3 und 4 zu erkennen, dass an dem Gehäuseunterteil 17 zwei Anschlussstutzen 21.1 und 21.2 angeordnet sind, wobei ein erster Anschlussstutzen 21.1 auf dem zur Scheibe 11 korrespondierenden äußeren Radius 12 angeordnet ist, und wobei der zweite Anschlussstutzen 21.2 auf dem zur Scheibe 11 korrespondierenden inneren Radius 14 liegt. Insbesondere aus der Figur 3, wo das Gehäuse 10 im zusammengebauten Zustand gezeigt wird, ist zu erkennen, dass jeweils der Anschlussstutzen 20.1 und 20.2 von Gehäuseoberteil 16 und mit den Anschlussstutzen 21.1 und 21.2 von Gehäuseunterteil 17 fluchtend übereinander am Gehäuse 10 angeordnet sind. Dabei ist zwischen dem ersten Anschlussstutzen 21.1 und dem zweiten Anschlussstutzen 21.2 des Gehäuseunterteils 17 die Pumpe 6 angeordnet, wobei deren Saugseite mit dem ersten Anschlussstutzen 21.1 und deren Druckseite mit dem zweiten Anschlussstutzen 21.2 zusammenwirkt. Somit ist die Pumpwirkung vom äußeren Radius 12 zum inneren Radius 14 gerichtet. Der dritte Anschlussstutzen 20.3 vom Gehäuseoberteil 16 wirkt mit einer im Gehäuseunterteil 17 angeformten Rinne 22 zusammen, die insbesondere in der Figur 4 in der perspektivisch, explosionsartigen Darstellung näher zu erkennen ist. Die Rinne 22 stellt hierbei eine Verbindung zwischen dem zweiten Anschlussstutzen 21.2 am Gehäuseunterteil 17 derart her, dass sie innerhalb des Gehäuses 10 eine strömungstechnische Verbindung zum Anschlussstutzen 20.3 herstellt, also hier über die Rinne 22 auf den äußeren Radius 12 zugegriffen werden kann, auf denen insbesondere die sichelförmigen Filterbereiche 13.1 und 13.2 liegen.The housing 10 in this case consists of an upper housing part 16 and a lower housing part 17, which surround the rotatably mounted disc 11 sealing and enclose, as shown in the FIG. 3 is shown. Like from the FIG. 4 can be seen, in a central axis 18 of the disc 11 is arranged on both sides of the disc 11 extending drive shaft 19 which is mounted in the upper housing part 16 and the lower housing part 17. About this drive shaft 19, the disc 11 is rotated depending on the washing process, so that pumped over the filter device 9 either the washing liquid 7 or the washing liquid 7 is pumped out. As the Figures 3 and 4 show are on the upper housing part 16 three Connecting pieces 20.1, 20.2 and 20.3 are arranged, wherein the first and the third connection piece 20.1 and 20.3 are arranged on the outer radius 12 corresponding to the disc 11, and the second connection piece 20.2 is arranged on a corresponding inner disk 14 to the inner radius 14. This arrangement is particularly clear in the exploded view, where here indicate the dashed lines, where the position of the connecting pieces 20.1, 20.2, 20.3 are integrally formed on the upper housing part 16. Next is from the Figures 3 and 4 it can be seen that two connecting pieces 21.1 and 21.2 are arranged on the lower housing part 17, wherein a first connecting piece 21.1 is arranged on the outer radius 12 corresponding to the disk 11, and wherein the second connecting piece 21.2 lies on the inner radius 14 corresponding to the disk 11. In particular from the FIG. 3 , Where the housing 10 is shown in the assembled state, it can be seen that in each case the connecting piece 20.1 and 20.2 of the upper housing part 16 and with the connecting pieces 21.1 and 21.2 of the lower housing part 17 are arranged one above the other on the housing 10. In this case, the pump 6 is arranged between the first connecting piece 21.1 and the second connecting piece 21.2 of the housing lower part 17, the suction side of which cooperates with the first connecting piece 21.1 and the pressure side with the second connecting piece 21.2. Thus, the pumping action is directed from the outer radius 12 to the inner radius 14. The third connection piece 20.3 from the upper housing part 16 cooperates with an integrally formed in the lower housing part 17 groove 22, in particular in the FIG. 4 in the perspective, explosive representation is closer to recognize. The channel 22 in this case establishes a connection between the second connecting piece 21.2 on the housing lower part 17 in such a way that it produces a fluidic connection to the connecting piece 20.3 within the housing 10, that is to say that the outer radius 12 can be accessed here via the channel 22, on which in particular the crescent-shaped filter areas 13.1 and 13.2 are located.

Es versteht sich nun von selbst, dass aufgrund der Rinne 22, die Pumpe 6 die Waschflüssigkeit 7 somit von innen nach außen über den dritten Anschlussstutzen 20.3 vom Gehäuseoberteil 16 mit Austrag des Filterkuchens gepumpt werden kann. Wird die Waschflüssigkeit 7 über den Anschlussstutzens 20.1 des Gehäuseoberteils 16 sowie über die sichelförmige Filterfläche 13.2 gesaugt, so bildet sich auf der Oberseite des sichelförmigen Bereichs 13.2 ein Filterkuchen. In dieser Stellung, wie dies in der Figur 5 dargestellt ist, wird die Waschflüssigkeit 7 gereinigt und gleichzeitig umgepumpt, da insbesondere in dieser Situation die Öffnung 15.1 in der Scheibe 11 mit den Anschlussstutzen 20.2 und 21.2 eine fluchtende Lage einnimmt. Wird nun die Scheibe 11 gedreht, so verhindert insbesondere der Bereich 23 zwischen den sichelförmigen Filterbereichen 13.1 und 13.2 auf dem äußeren Radius 12 ein Abströmen der Waschflüssigkeit 7 über den Anschlussstutzen 20.2, so dass bei entsprechender Pumpwirkung die Waschflüssigkeit 7 unterhalb der Scheibe 11 über die Rinne 22 gedrückt wird, so dass dann die Waschflüssigkeit 7 unterhalb des sichelförmigen Bereiches 13.1, 13.2 austritt und somit den oberhalb liegenden Filterkuchen über den Anschlussstutzen 20.3 austrägt. Diese Situation ist insbesondere in der Figur 6 dargestellt, wo gezeigt wird, dass die Waschflüssigkeit 7 hier über die Rinne 22 geführt wird, so dass der Filterkuchen oberhalb des Filterbereichs 13.1, 13.2 ausgetragen wird. Aufgrund dieser Ausbildung wird eine Filtereinrichtung 9 bereit gestellt, die eine Selbstreinigung vornimmt, in dem die Scheibe 11 entsprechend abgestimmt auf das Waschprogramm gedreht wird.It goes without saying that due to the channel 22, the pump 6, the washing liquid 7 thus can be pumped from the inside to the outside via the third connecting piece 20.3 from the upper housing part 16 with discharge of the filter cake. If the washing liquid 7 is sucked over the connecting piece 20.1 of the upper housing part 16 and over the crescent-shaped filter surface 13.2, a filter cake is formed on the upper side of the crescent-shaped area 13.2. In this position, as in the FIG. 5 is shown, the washing liquid 7 is cleaned and pumped around at the same time, especially since in this situation, the opening 15.1 in the disc 11 with the connecting pieces 20.2 and 21.2 assumes an aligned position. If now the disk 11 is rotated, in particular the area 23 between the crescent-shaped filter areas 13.1 and 13.2 on the outer radius 12 prevents the washing liquid 7 from flowing off via the connecting piece 20.2, so that, if the corresponding filter areas are the same Pumping the washing liquid 7 is pressed below the disc 11 via the channel 22, so that then the washing liquid 7 below the crescent-shaped region 13.1, 13.2 emerges and thus discharges the filter cake above the connection piece 20.3. This situation is particular in the FIG. 6 where it is shown that the washing liquid 7 is guided here via the channel 22, so that the filter cake is discharged above the filter area 13.1, 13.2. Due to this design, a filter device 9 is provided which performs a self-cleaning, in which the disc 11 is rotated in accordance with the washing program.

Claims (14)

Waschmaschine (1) mit einem in einem Gehäuse angeordneten Laugenbehälter (2), in dem eine Trommel (3) drehbar gelagert ist, wobei in der Wand (4) des Laugenbehälters (2) eine Ablauföffnung (5) vorgesehen ist, über die mittels einer Pumpe (6) eine Waschflüssigkeit (7) umpumpbar bzw. abpumpbar ist,
dadurch gekennzeichnet,
dass zwischen der Ablauföffnung (5) des Laugenbehälters (2) und dem Ansaugstutzen (8) der Pumpe (6) eine selbstreinigende Filtereinrichtung (9) angeordnet ist, mittels der neben der Reinigung der Waschflüssigkeit (7) in dem Laugenbehälter (2) auch die Umflutung der Waschflüssigkeit (7) in der Trommel (3) erfolgt.Washing machine (1) with a tub in a housing (2), in which a drum (3) is rotatably mounted, wherein in the wall (4) of the tub (2) has a drain opening (5) is provided via the means of a Pump (6) a washing liquid (7) can be pumped or pumped,
characterized,
that between the drain opening (5) of the tub (2) and the suction nozzle (8) of the pump (6) a self-cleaning filter device (9) is arranged, by means of the cleaning of the washing liquid (7) in the tub (2) and the Flooding of the washing liquid (7) in the drum (3) takes place. Waschmaschine nach Anspruch 1,
dadurch gekennzeichnet,
dass die Filtereinrichtung (9) unmittelbar an der Wand (4) des Laugenbehälters (2) angeordnet ist.Washing machine according to claim 1,
characterized,
that the filter device (9) is arranged directly on the wall (4) of the tub (2). Waschmaschine nach Anspruch 2,
dadurch gekennzeichnet,
dass die Filtereinrichtung (9) aus einer in einem Gehäuse (10) drehbar gelagerten Scheibe (11) besteht.Washing machine according to claim 2,
characterized,
that the filter device (9) is made in a housing (10) rotatably mounted disc (11). Waschmaschine nach Anspruch 3,
dadurch gekennzeichnet,
dass die Scheibe (11) einen äußeren Radius (12) aufweist auf dem sich wenigstens zwei sichelförmig angeordnete Filterbereiche (13.1, 13.2) erstrecken und wobei die Scheibe (11) einen inneren Radius (14) aufweist, auf dem zwei Öffnungen (15.1, 15.2) angeordnet sind.Washing machine according to claim 3,
characterized,
in that the disc (11) has an outer radius (12) on which extend at least two crescent-shaped filter regions (13.1, 13.2) and wherein the disc (11) has an inner radius (14) on which two openings (15.1, 15.2 ) are arranged. Waschmaschine nach Anspruch 4,
dadurch gekennzeichnet,
dass die sichelförmigen Filterbereiche (13.1, 13.2) auf dem äußeren Radius (12) spiegelsymmetrisch zueinander angeordnet sind, wobei die Öffnungen (15.1, 15.2) auf dem inneren Radius (14) gegenüberliegend zwischen den sichelförmigen Filterbereichen (13.1, 13.2) liegen.Washing machine according to claim 4,
characterized,
that the crescent-shaped filter areas (13.1, 13.2) are arranged on the outer radius (12) mirror symmetrical to each other, wherein the openings (15.1, 15.2) to the inner radius (14) opposite between the crescent-shaped filter regions (13.1, 13.2) lie. Waschmaschine nach den Ansprüchen 3 bis 5,
dadurch gekennzeichnet,
dass das Gehäuse (10) aus einem Gehäuseoberteil (16) und aus einem Gehäuseunterteil (17) besteht, welche die drehbar gelagerte Scheibe (11) dichtend umschließen.Washing machine according to claims 3 to 5,
characterized,
in that the housing (10) comprises an upper housing part (16) and a lower housing part (17) which sealingly surround the rotatably mounted disc (11). Waschmaschine nach den Ansprüchen 3 bis 6,
dadurch gekennzeichnet,
dass in einer Zentralachse (18) der Scheibe (11) eine sich beidseits der Scheibe (11) erstreckende Antriebswelle (19) angeordnet ist, welche im Gehäuseoberteil (16) und Gehäuseunterteil (17) gelagert ist.Washing machine according to claims 3 to 6,
characterized,
that in a central axis (18) of the disc (11) is arranged on both sides of the disc (11) extending drive shaft (19) which is mounted in the upper housing part (16) and lower housing part (17). Waschmaschine nach den Ansprüchen 6 und 7,
dadurch gekennzeichnet,
dass an dem Gehäuseoberteil (16) drei Anschlussstutzen (20.1, 20.2, 20.3) angeordnet sind, wobei der erste und der dritte Anschlussstutzen (20.1, 20.3) auf dem zur Scheibe (11) korrespondierenden äußeren Radius (12) angeordnet sind und der zweite Anschlussstutzen (20.2) auf dem zur Scheibe (11) korrespondierenden inneren Radius (14).Washing machine according to claims 6 and 7,
characterized,
in that three connecting stubs (20.1, 20.2, 20.3) are arranged on the upper housing part (16), the first and the third connecting stubs (20.1, 20.3) being arranged on the outer radius (12) corresponding to the disc (11) and the second connecting stub (20.2) on the inner radius (14) corresponding to the disc (11). Waschmaschine nach den Ansprüchen 6 bis 8,
dadurch gekennzeichnet,
dass an dem Gehäuseunterteil (17) zwei Anschlussstutzen (21.1, 21.2) angeordnet sind, wobei ein erster Anschlussstutzen (21.1) auf dem zur Scheibe (11) korrespondierenden äußeren Radius (12) angeordnet ist, und wobei der zweite Anschlussstutzen (21.2) auf dem zur Scheibe (11) korrespondierenden inneren Radius (14) liegt.Washing machine according to claims 6 to 8,
characterized,
in that two connecting pieces (21.1, 21.2) are arranged on the lower housing part (17), a first connecting piece (21.1) being arranged on the outer radius (12) corresponding to the disk (11), and the second connecting piece (21.2) being arranged on the to the disc (11) corresponding inner radius (14). Waschmaschine nach den Ansprüchen 8 bis 9,
dadurch gekennzeichnet,
dass jeweils der erste Anschlussstutzen (20.1, 21.1) und der zweite Anschlussstutzen (20.2, 21.2) von Gehäuseoberteil (16) und Gehäuseunterteil (17) fluchtend übereinander am Gehäuse (10) angeordnet sind.Washing machine according to claims 8 to 9,
characterized,
that each of the first connecting piece (20.1, 21.1) and the second connecting piece (20.2, 21.2) of the upper housing part (16) and lower housing part (17) are arranged one above the other on the housing (10). Waschmaschine nach den Ansprüchen 8 bis 10,
dadurch gekennzeichnet,
dass zwischen dem ersten Anschlussstutzen (21.1) und dem zweiten Anschlussstutzen (21.2) des Gehäuseunterteils (17) die Pumpe (6) angeordnet ist, wobei deren Saugseite mit dem ersten Anschlussstutzen (21.1) und deren Druckseite mit dem zweiten Anschlussstutzen (21.2) zusammenwirkt.Washing machine according to claims 8 to 10,
characterized,
in that the pump (6) is arranged between the first connecting piece (21.1) and the second connecting piece (21.2) of the lower housing part (17), the suction side of which cooperates with the first connecting piece (21.1) and the pressure side with the second connecting piece (21.2). Waschmaschine nach den Ansprüchen 8 bis 11,
dadurch gekennzeichnet,
dass der dritte Anschlussstutzen (20.3) vom Gehäuseoberteil (16) mit einer im Gehäuseunterteil (17) eingeformten Rinne (22) zusammenwirkt, die eine Verbindung zum zweiten Anschlussstutzen (21.2) am Gehäuseunterteil (17) herstellt.Washing machine according to claims 8 to 11,
characterized,
in that the third connecting piece (20.3) of the upper housing part (16) cooperates with a groove (22) formed in the lower housing part (17), which connects to the second connecting piece (21.2) on the lower housing part (17). Waschmaschine nach den Ansprüchen 8 bis 12,
dadurch gekennzeichnet,
dass der dritte Anschlussstutzen (20.3) vom Gehäuseoberteil (16) zum Abpumpen der Waschflüssigkeit (7) mit Austrag des Filterkuchens vorgesehen ist.Washing machine according to claims 8 to 12,
characterized,
that the third connecting piece (20.3) from the upper housing part (16) for pumping out the washing liquid (7) is provided with discharge of the filter cake. Waschmaschine nach den Ansprüchen 8 bis 13,
dadurch gekennzeichnet,
dass jeweils die beiden zueinander fluchtenden Anschlussstutzen (20.1, 21.1) sowie (20.2, 21.2) von Gehäuseoberteil (16) und Gehäuseunterteil (17) zur Umflutung mit Filtrierung der Waschflüssigkeit (7) in der Trommel (3) vorgesehen sind.Washing machine according to claims 8 to 13,
characterized,
in that the two mutually aligned connecting pieces (20.1, 21.1) and (20.2, 21.2) of the upper housing part (16) and lower housing part (17) are provided for flooding with filtration of the washing liquid (7) in the drum (3).
EP09401032A 2009-11-04 2009-11-04 Washing machine with pump for recirculation Not-in-force EP2319978B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES09401032T ES2383244T3 (en) 2009-11-04 2009-11-04 Washing machine with transfer pump
AT09401032T ATE551464T1 (en) 2009-11-04 2009-11-04 WASHING MACHINE WITH FLOOD PUMP
EP09401032A EP2319978B1 (en) 2009-11-04 2009-11-04 Washing machine with pump for recirculation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09401032A EP2319978B1 (en) 2009-11-04 2009-11-04 Washing machine with pump for recirculation

Publications (2)

Publication Number Publication Date
EP2319978A1 true EP2319978A1 (en) 2011-05-11
EP2319978B1 EP2319978B1 (en) 2012-03-28

Family

ID=42126484

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09401032A Not-in-force EP2319978B1 (en) 2009-11-04 2009-11-04 Washing machine with pump for recirculation

Country Status (3)

Country Link
EP (1) EP2319978B1 (en)
AT (1) ATE551464T1 (en)
ES (1) ES2383244T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014206119B4 (en) * 2013-12-18 2016-09-22 BSH Hausgeräte GmbH Method for operating a pump in a household appliance and water-conducting household appliance

Citations (5)

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Publication number Priority date Publication date Assignee Title
US2555400A (en) 1943-07-14 1951-06-05 J G De Remer Res Corp Washing machine with gyratory washing action
US3681947A (en) 1971-03-23 1972-08-08 Whirlpool Co Combination drain manifold and self-cleaning filter
US3738126A (en) 1971-12-27 1973-06-12 Gen Motors Corp Self-cleaning lint filter for a clothes washer
US6402962B1 (en) 2000-07-26 2002-06-11 Maytag Corporation Self-cleaning filter with bypass
US7406843B2 (en) 2002-05-08 2008-08-05 Whirlpool Corporation Remote sump with film heater and auto purge

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2555400A (en) 1943-07-14 1951-06-05 J G De Remer Res Corp Washing machine with gyratory washing action
US3681947A (en) 1971-03-23 1972-08-08 Whirlpool Co Combination drain manifold and self-cleaning filter
US3738126A (en) 1971-12-27 1973-06-12 Gen Motors Corp Self-cleaning lint filter for a clothes washer
US6402962B1 (en) 2000-07-26 2002-06-11 Maytag Corporation Self-cleaning filter with bypass
US7406843B2 (en) 2002-05-08 2008-08-05 Whirlpool Corporation Remote sump with film heater and auto purge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014206119B4 (en) * 2013-12-18 2016-09-22 BSH Hausgeräte GmbH Method for operating a pump in a household appliance and water-conducting household appliance

Also Published As

Publication number Publication date
ES2383244T3 (en) 2012-06-19
EP2319978B1 (en) 2012-03-28
ATE551464T1 (en) 2012-04-15

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