EP2283180A1 - Washing machine and method for recycling rinsing fluid in a washing machine - Google Patents

Washing machine and method for recycling rinsing fluid in a washing machine

Info

Publication number
EP2283180A1
EP2283180A1 EP09749708A EP09749708A EP2283180A1 EP 2283180 A1 EP2283180 A1 EP 2283180A1 EP 09749708 A EP09749708 A EP 09749708A EP 09749708 A EP09749708 A EP 09749708A EP 2283180 A1 EP2283180 A1 EP 2283180A1
Authority
EP
European Patent Office
Prior art keywords
line
washing machine
tub
machine according
storage container
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
EP09749708A
Other languages
German (de)
French (fr)
Other versions
EP2283180B1 (en
Inventor
Oscar Abos Alfranca
Maria Del Carmen Menendez Fernandez
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to PL09749708T priority Critical patent/PL2283180T3/en
Publication of EP2283180A1 publication Critical patent/EP2283180A1/en
Application granted granted Critical
Publication of EP2283180B1 publication Critical patent/EP2283180B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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 
    • D06F39/006—Recovery arrangements, e.g. for the recovery of energy or water
    • 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 
    • D06F39/20—Arrangements for water recovery
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/46—Control of the energy or water consumption

Definitions

  • the invention relates to a washing machine according to the preamble of claim 1 and a method for rinsing liquid recovery in a washing machine according to claim 13.
  • the washing program of a washing machine is known to have the program sections "washing” and "rinsing".
  • the program section "rinsing" usually comprises at least two individual rinses In each of the rinses, a quantity of fresh water which depends on the type / amount of the rinse is added, which rinses the detergent residues from the laundry while the washing drum is rotated an emptying of the tub.
  • a generic washing machine is known from EP 0 857 808 B1, in which the rinsing water used in the program section "rinsing" is recovered, for which the washing machine of the generic type has a storage container which is connected to the suds container via a return line The rinsing water is not led out of the washing machine, but is routed via the return line into the storage tank.
  • the rinse water stored in the storage tank is used during the washing cycle in the following washing cycle.
  • the storage tank leading to the return line and leading to the sewer system drain line are connected independently of each other on the tub.
  • the object of the invention is to provide a water-saving washing machine or a method for the recovery of rinsing liquid in such a washing machine, in which the rinsing liquid can be recovered with low component expenditure and manufacturing technology.
  • the storage container can be arranged geodetically below the tub.
  • the rinsing liquid can be introduced only by gravity into the storage tank.
  • the return line can already branch off upstream of a drain pump connected in the drain line.
  • the return line can also branch off downstream of the drain pump, that is, on the pressure side of the drain pump.
  • the drain pump actively pump the rinse water into the storage tank.
  • the storage container is positionable in this case in any altitude in the washing machine.
  • the control device blocking element such as a solenoid valve.
  • the solenoid valve can be opened or closed depending on the operating mode.
  • a control element is provided in the drainage area of the tub or in the drainage line, which closes its drainage area when filling the tub.
  • the control is preferably provided upstream of the branching return line.
  • the storage container may be in a closed return circuit via a circulation line with the tub in combination.
  • a circulation line In the closed loop feedback loop of the tub, the return line, the storage tank and the recirculating again opening into the tub recirculation line are connected.
  • the circulation line can a Be arranged delivery pump, which is connected with its suction side to the storage container.
  • the storage container may be associated with a vent line, which preferably connects the storage container with the tub.
  • the storage container can have an additional discharge line, via which the rinsing water cached in the storage container can be emptied.
  • a controllable blocking element such as a solenoid valve, can be connected for this purpose.
  • the return line branches off directly from the drain line. Downstream of this first branch point, in a further embodiment, a second branch point can be provided, at which the circulation line branches off from the discharge line.
  • the recirculation line may be in fluid communication with the detergent dispenser box or with the tub to form a closed loop return circuit.
  • the drain pump in a double function as a circulation pump can recirculate the already used rinse water back into the caustic container.
  • the circulation line is not connected directly to the storage tank.
  • the rinsing liquid is pumped via the return line into the storage container and stored there by means of the drain pump.
  • a three-way valve arranged in the first branching point is opened. The rinse water can therefore be returned by gravity from the storage tank on the put out of service drain pump into the tub. Subsequently, over the Three-way valve, the drain line released and closed the flow path to the storage tank.
  • the rinse water is passed via the drain line to the second branch point, where it is returned via a correspondingly switched three-way valve in the circulation line and the tub.
  • the drain pump can be used here both as a circulation pump and for discharging flushing liquid for the sewer system.
  • Fig. 1 is a rough schematic view of a washing machine according to the first embodiment.
  • FIG. 2 in a view corresponding to FIG. 1, a washing machine according to the second embodiment.
  • FIG. 1 shows a washing machine according to the first embodiment with a tub 1 is shown.
  • a in the tub 1 rotatably arranged washing drum 3 is indicated only by dashed lines.
  • a drain line 5 is connected, in which a return line 9 branches off in a first branching point 8, which is fluidically connected to a storage tank 7 described later.
  • a drain pump 1 1 Downstream of the first branching point 8, a drain pump 1 1 is connected in the discharge line 5, which conveys spent washing or rinsing water into the drainage system.
  • a solenoid valve 13 In the return line 9, a solenoid valve 13 is connected as a blocking element.
  • the drain pump 11 is directly upstream of another solenoid valve 15. Die Both solenoid valves 13, 15, as well as the other electrically actuated device components are controlled by a control device, not shown here.
  • the solenoid valves 13, 15 alternately release the return line 9 or the drain line 5.
  • a control element 17 Upstream of the first branching point 8, a control element 17 is arranged, which closes its discharge region 6 when filling the tub 1.
  • the storage container 7 is arranged in a closed return circuit. In the return cycle flushing liquid coming from the tub 1 is cached in the storage container 7 after a rinse cycle described later. The rinse water stored in the storage tank 7 is then returned to the tub 1 via the recirculation line 19 and the circulating pump 21 arranged therein. Due to the level changes in the storage tank 7 takes place via a vent line 23 which connects the storage tank 7 with the tub 1, a pressure compensation.
  • a riser 24 is connected in the drain region 6, at the free end of a level sensor 26 is arranged.
  • a level sensor 26 an analog pressure sensor can be used, with which arbitrary levels can be measured.
  • the signal output of the sensor 26 is connected to the control device, not shown, which regulates the predetermined liquid levels in the tub 1 in each individual wash program section.
  • a level sensor 28 is associated with the storage container 7 via a riser 27, which detects the liquid level in the storage container 7.
  • the storage container 7 is connected to a discharge line 25. When the termination line 25 is released, the storage container 7 can be emptied, for example during servicing.
  • the washing program of the washing machine is known to include a washing program section and a washing program section.
  • the wash program section is divided into individual wash cycles.
  • washing liquid is fed into the tub 1 via the supply line 4 and via the detergent dispenser box 31 until the level sensor 26 detects a predetermined liquid level in the tub 1.
  • the rinses are performed.
  • For each rinse a predetermined amount of fresh water is passed into the tub 1.
  • the tub 1 is emptied with slings and the rinse water discharged through the drain line 5 by means of the drain pump 11 into the sewer system.
  • the switched in the return line 9 solenoid valve 13 is closed, while the drain pump 1 1 upstream solenoid valve 15 is opened.
  • the drain pump 1 1 is turned off and the upstream solenoid valve 15 is closed, while the return line 9 is opened to the storage tank 7.
  • the storage container 7 is arranged below the tub 1 by a height difference Ah 1 , so that under gravity the flushing liquid of the last wash cycle flows into the storage container 7 and is temporarily stored therein.
  • the second embodiment shown in FIG. 2 corresponds functionally to the first embodiment, so that the same effect device components or liquid lines are provided with the same reference numerals.
  • the return line leading to the storage tank 7 9 does not branch upstream, but downstream of the drain pump 11 from the drain line 5.
  • a three-way valve 29 is provided, which releases the drain line 5 or the return line 9 depending on the switching position.
  • a second branching point 22 is provided in the discharge line 5, in which the circulation line 19 branches off from the discharge line 5.
  • a three-way valve 30 is also provided.
  • first fresh water is fed into the tub 1 for the wash cycle via the supply line 4.
  • the washing liquid is passed over the drain pump 1 1 past the storage container 7 in the sewer system.
  • the switching positions of the three-way valves 29, 30 are as shown in FIG. 2.
  • the rinsing liquid quantities are discharged from the drain pump 11 via the drain line 5 into the sewage system.
  • the three-way valve 29 of the first branching point 8 is moved into its second switching position in which the rinsing liquid is conveyed into the storage container 7 by means of the rinse pump 11.
  • the rinse pump 11 For pressure equalization of the storage tank 7 is connected via the vent line 23 to the tub 1.
  • the rinsing liquid thus cached in the storage container 7 is used for the start of the subsequent washing program for the wash cycle.
  • the drain pump 1 1 is put out of action and spent the first solenoid valve 29 in the second switching position. In this way, the cached rinsing liquid can flow by gravity from the storage tank 7 into the tub 1.
  • the storage container 7 is arranged at a height difference U 2 above the predetermined liquid levels in the tub 1.
  • the recirculated rinsing liquid is circulated in the return circuit.
  • the first solenoid valve 29 is back in The switching position shown in Fig. 2 spent while the second solenoid valve 30 is moved to its second switching position.
  • the drain pump 11 is switched on, therefore, the flushing liquid is conveyed via the drain line 5 and the now released circulation line 19 into the detergent dispenser 31 and from there fed into the tub 1 until a uniform detergent mixing is ensured.
  • the drain pump 1 1 therefore also acts as a double function during the circulation operation as a circulation pump.
  • a heating element 33 is connected between the tub 1 and the drain pump 1 1 and heats the washing liquid during the circulation operation.

Landscapes

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

Abstract

The invention relates to a washing machine comprising a liquor container (1), in which a washing drum (3) is disposed in a rotating manner and which is connected to a discharge line (5), and further comprising a storage container (7) having a flow connection to the liquor container (1) via a return line (9), rinsing fluid being stored in said storage container for renewed feeding. According to the invention, the return line (9) is branched off from the discharge line (5) downstream of the liquor container (1).

Description

Waschmaschine sowie Verfahren zur Rückgewinnung von Washing machine and method for the recovery of
Spülflüssigkeit in einer WaschmaschineRinsing fluid in a washing machine
Die Erfindung betrifft eine Waschmaschine nach dem Oberbegriff des Patentanspruches 1 sowie ein Verfahren zur Spülflüssigkeit-Rückgewinnung in einer Waschmaschine nach dem Patentanspruch 13.The invention relates to a washing machine according to the preamble of claim 1 and a method for rinsing liquid recovery in a washing machine according to claim 13.
Das Waschprogramm einer Waschmaschine weist bekanntermaßen die Programmabschnitte „Waschen" und „Spülen" auf. Der Programmabschnitt „Spülen" umfasst üblicherweise zumindest zwei einzelne Spülgänge. In jedem der Spülgänge wird dem Laugen- behälter eine von der Wäscheart/-menge abhängige Frischwasser-Menge zugesetzt, das unter Drehung der Waschtrommel die Waschmittelreste aus der Wäsche spült. Anschließend erfolgt unter Schleudern eine Entleerung des Laugenbehälters.The washing program of a washing machine is known to have the program sections "washing" and "rinsing". The program section "rinsing" usually comprises at least two individual rinses In each of the rinses, a quantity of fresh water which depends on the type / amount of the rinse is added, which rinses the detergent residues from the laundry while the washing drum is rotated an emptying of the tub.
Aus der EP 0 857 808 B1 ist eine gattungsgemäße Waschmaschine bekannt, bei der das im Programmabschnitt „Spülen" verwendete Spülwasser rückgewonnen wird. Hierzu weist die gattungsgemäße Waschmaschine einen Speicherbehälter auf, der über eine Rücklaufleitung mit dem Laugenbehälter verbunden ist. Nach erfolgtem letzten Spülgang wird das Spülwasser nicht aus der Waschmaschine geführt, sondern über die Rücklaufleitung in den Speicherbehälter geleitet. Das im Speicherbehälter gespeicherte Spül- wasser wird im folgenden Waschzyklus während des Waschganges verwendet.A generic washing machine is known from EP 0 857 808 B1, in which the rinsing water used in the program section "rinsing" is recovered, for which the washing machine of the generic type has a storage container which is connected to the suds container via a return line The rinsing water is not led out of the washing machine, but is routed via the return line into the storage tank.The rinse water stored in the storage tank is used during the washing cycle in the following washing cycle.
Die zum Speicherbehälter führende Rücklaufleitung und die zum Abwassersystem führende Ablaufleitung sind voneinander unabhängig am Laugenbehälter angeschlossen.The storage tank leading to the return line and leading to the sewer system drain line are connected independently of each other on the tub.
Die Aufgabe der Erfindung besteht darin, eine wassersparende Waschmaschine bzw. ein Verfahren zur Rückgewinnung von Spülflüssigkeit in einer solchen Waschmaschine bereitzustellen, bei der mit geringem Bauteilaufwand sowie fertigungstechnisch einfach die Spülflüssigkeit rückgewonnen werden kann.The object of the invention is to provide a water-saving washing machine or a method for the recovery of rinsing liquid in such a washing machine, in which the rinsing liquid can be recovered with low component expenditure and manufacturing technology.
Die Aufgabe ist durch die Merkmale des Patentanspruches 1 oder des Patentanspruches 13 gelöst. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen offenbart. Gemäß dem kennzeichnenden Teil des Patentanspruches 1 ist die zum Speicherbehälter führende Rücklaufleitung in Abkehr zum Stand der Technik nicht unmittelbar am Laugenbehälter angeschlossen, sondern zweigt diese stromab des Laugenbehälters von der Ablaufleitung ab. Auf diese Weise kann eine für die Rücklaufleitung vorgesehene Zugangsöffnung im Laugenbehälter eingespart werden. Ebenso können die dafür erforderlichen Dichtelemente eingespart werden.The object is solved by the features of claim 1 or claim 13. Advantageous developments of the invention are disclosed in the subclaims. According to the characterizing part of claim 1 leading to the storage tank return line in departure from the prior art is not directly connected to the tub, but branches them downstream of the tub from the drain line. In this way, provided for the return line access opening can be saved in the tub. Likewise, the required sealing elements can be saved.
Bevorzugt kann der Speicherbehälter geodätisch unterhalb des Laugenbehälters angeordnet sein. Nach erfolgtem Spülgang kann daher die Spülflüssigkeit lediglich durch Schwerkraftwirkung in den Speicherbehälter eingeleitet werden. In diesem Fall kann die Rücklaufleitung daher bereits stromauf einer in der Ablaufleitung geschalteten Laugenpumpe abzweigen. Alternativ hierzu kann die Rücklaufleitung auch stromab der Laugenpumpe, das heißt an der Druckseite der Laugenpumpe, abzweigen. In diesem Fall kann bei entsprechender Strömungsumleitung die Laugenpumpe das Spülwasser aktiv in den Speicherbehälter pumpen. Der Speicherbehälter ist in diesem Falle in beliebiger Höhenlage in der Waschmaschine positionierbar.Preferably, the storage container can be arranged geodetically below the tub. After the rinse, therefore, the rinsing liquid can be introduced only by gravity into the storage tank. In this case, therefore, the return line can already branch off upstream of a drain pump connected in the drain line. Alternatively, the return line can also branch off downstream of the drain pump, that is, on the pressure side of the drain pump. In this case, with appropriate flow diversion, the drain pump actively pump the rinse water into the storage tank. The storage container is positionable in this case in any altitude in the washing machine.
Zur Umlenkung der aus dem Laugenbehälter geführten Spülflüssigkeitsströmung in den Speicherbehälter oder in das Abflusssystem kann in der Rücklaufleitung und/oder in der Ablaufleitung ein von der Steuereinrichtung ansteuerbares Sperrelement, etwa ein Elektromagnetventil, angeordnet sein. Das Elektromagnetventil kann je nach Betriebsart auf- oder zugesteuert werden.For deflecting the guided out of the tub Spülflüssigkeitsströmung in the storage tank or in the drainage system can be arranged in the return line and / or in the drain line controllable by the control device blocking element, such as a solenoid valve. The solenoid valve can be opened or closed depending on the operating mode.
Bekanntermaßen ist im Abflussbereich des Laugenbehälters oder in der Ablaufleitung ein Steuerelement vorgesehen, das beim Befüllen des Laugenbehälters dessen Abflussbereich schließt. Das Steuerelement ist bevorzugt stromauf der abzweigenden Rücklaufleitung vorgesehen.As is known, a control element is provided in the drainage area of the tub or in the drainage line, which closes its drainage area when filling the tub. The control is preferably provided upstream of the branching return line.
Gemäß einer bevorzugten Ausführungsform kann der Speicherbehälter in einem geschlossenen Rückführkreislauf über eine Umwälzleitung mit dem Laugenbehälter in Verbindung sein. In dem geschlossenen Rückführkreislauf sind nacheinander der Laugenbehälter, die Rücklaufleitung, der Speicherbehälter sowie die wieder in den Laugenbehälter mündende Umwälzleitung geschaltet. In der Umwälzleitung kann eine Förderpumpe angeordnet sein, die mit ihrer Saugseite am Speicherbehälter angeschlossen ist.According to a preferred embodiment, the storage container may be in a closed return circuit via a circulation line with the tub in combination. In the closed loop feedback loop of the tub, the return line, the storage tank and the recirculating again opening into the tub recirculation line are connected. In the circulation line can a Be arranged delivery pump, which is connected with its suction side to the storage container.
Für ein einwandfreies Befüllen bzw. Entleeren des Speicherbehälters ist ein Druckausgleich im Speicherbehälter erforderlich. Hierzu kann dem Speicherbehälter eine Belüftungsleitung zugeordnet sein, die vorzugsweise den Speicherbehälter mit dem Laugenbehälter verbindet.For a perfect filling or emptying of the storage tank, a pressure equalization in the storage tank is required. For this purpose, the storage container may be associated with a vent line, which preferably connects the storage container with the tub.
In einem Kundendienstfall ist eine einfache Handhabung der Waschmaschine von Vorteil. Vor diesem Hintergrund kann der Speicherbehälter eine zusätzliche Ablaufleitung aufweisen, über die das im Speicherbehälter zwischengespeicherte Spülwasser entleerbar ist. In der Ablaufleitung kann hierfür ein ansteuerbares Sperrelement, etwa ein Elektromagnetventil, geschaltet sein.In a case of customer service, easy handling of the washing machine is an advantage. Against this background, the storage container can have an additional discharge line, via which the rinsing water cached in the storage container can be emptied. In the drain line, a controllable blocking element, such as a solenoid valve, can be connected for this purpose.
Wie oben erwähnt, zweigt erfindungsgemäß die Rücklaufleitung unmittelbar von der Ablaufleitung ab. Stromab dieser ersten Verzweigungsstelle kann in einer weiteren Ausführungsform eine zweite Verzweigungsstelle vorgesehen sein, an der die Umwälzleitung von der Ablaufleitung abzweigt. Die Umwälzleitung kann zur Bildung eines geschlossenen Rückführkreislaufes unmittelbar mit dem Waschmitteleinspülkasten oder mit dem Laugenbehälter in Strömungsverbindung sein.As mentioned above, according to the invention, the return line branches off directly from the drain line. Downstream of this first branch point, in a further embodiment, a second branch point can be provided, at which the circulation line branches off from the discharge line. The recirculation line may be in fluid communication with the detergent dispenser box or with the tub to form a closed loop return circuit.
Im Unterschied zum vorangegangenen Ausführungsbeispiel ist hier keine zusätzliche Förderpumpe im Rückführkreislauf vorzusehen. Vielmehr kann durch entsprechende Ansteuerung der darin integrierten Strömungsleitelemente die Laugenpumpe in Doppelfunktion als Umwälzpumpe das bereits gebrauchte Spülwasser wieder in den Laugen- behälter rückführen.In contrast to the previous embodiment, no additional feed pump is to be provided in the return circuit here. Rather, by appropriate control of the flow guide elements integrated therein, the drain pump in a double function as a circulation pump can recirculate the already used rinse water back into the caustic container.
Im Gegensatz zur ersten Ausführungsform ist hier die Umwälzleitung also nicht direkt am Speicherbehälter angeschlossen. Bei einem Speichervorgang wird mittels der Laugenpumpe die Spülflüssigkeit über die Rücklaufleitung in den Speicherbehälter gepumpt und dort gespeichert. Zur Rückführung des dort gespeicherten Spülwassers wird ein in der ersten Verzweigungsstelle angeordnetes Dreiwegeventil geöffnet. Das Spülwasser kann daher durch Schwerkraftwirkung vom Speicherbehälter über die außer Betrieb gesetzte Laugenpumpe in den Laugenbehälter rückgeführt werden. Anschließend wird über das Dreiwegeventil die Ablaufleitung freigegeben und der Strömungsweg zum Speicherbehälter geschlossen.In contrast to the first embodiment, here the circulation line is not connected directly to the storage tank. In a storage process, the rinsing liquid is pumped via the return line into the storage container and stored there by means of the drain pump. To return the rinse water stored there, a three-way valve arranged in the first branching point is opened. The rinse water can therefore be returned by gravity from the storage tank on the put out of service drain pump into the tub. Subsequently, over the Three-way valve, the drain line released and closed the flow path to the storage tank.
Bei einer nachfolgenden Aktivierung der Laugenpumpe wird daher das Spülwasser über die Ablaufleitung zur zweiten Verzweigungsstelle geführt, an der es über ein ent- sprechend geschaltetes Dreiwegeventil in die Umwälzleitung und den Laugenbehälter rückgeführt wird. Im Unterschied zum ersten Ausführungsbeispiel kann hier die Laugenpumpe sowohl als Umwälzpumpe als auch zum Abführen von Spülflüssigkeit für das Abwassersystem eingesetzt werden.In a subsequent activation of the drain pump, therefore, the rinse water is passed via the drain line to the second branch point, where it is returned via a correspondingly switched three-way valve in the circulation line and the tub. In contrast to the first embodiment, the drain pump can be used here both as a circulation pump and for discharging flushing liquid for the sewer system.
Nachfolgend sind zwei Ausführungsbeispiele der Erfindung anhand der beigefügten Figuren beschrieben.In the following, two embodiments of the invention will be described with reference to the attached figures.
Es zeigen:Show it:
Fig. 1 in einer grob schematischen Ansicht eine Waschmaschine gemäß dem ersten Ausführungsbeispiel; undFig. 1 is a rough schematic view of a washing machine according to the first embodiment; and
Fig. 2 in einer Ansicht entsprechend der Fig. 1 eine Waschmaschine gemäß dem zweiten Ausführungsbeispiel.Fig. 2 in a view corresponding to FIG. 1, a washing machine according to the second embodiment.
In der Fig. 1 ist eine Waschmaschine gemäß dem ersten Ausführungsbeispiel mit einem Laugenbehälter 1 gezeigt. Eine im Laugenbehälter 1 drehbar angeordnete Waschtrommel 3 ist lediglich gestrichelt angedeutet. Der Zulauf von Frischwasser in den Laugenbehälter 1 erfolgt über eine Frischwasserzulaufleitung 4, in der ein Waschmitteleinspülkasten 31 vorgesehen ist. Im Abflussbereich 7 des Laugenbehälters 1 ist eine Ablaufleitung 5 angeschlossen, in der in einer erste Verzweigungsstelle 8 eine Rücklaufleitung 9 abzweigt, die mit einem später beschriebenen Speicherbehälter 7 strömungstechnisch verbunden ist.1 shows a washing machine according to the first embodiment with a tub 1 is shown. A in the tub 1 rotatably arranged washing drum 3 is indicated only by dashed lines. The feed of fresh water into the tub 1 via a fresh water supply line 4, in which a Waschmitteleinspülkasten 31 is provided. In the discharge area 7 of the tub 1, a drain line 5 is connected, in which a return line 9 branches off in a first branching point 8, which is fluidically connected to a storage tank 7 described later.
Stromab der ersten Verzweigungsstelle 8 ist eine Laugenpumpe 1 1 in der Ablaufleitung 5 geschaltet, die verbrauchtes Wasch- oder Spülwasser in das Abflusssystem fördert. In der Rücklaufleitung 9 ist als Sperrelement ein Elektromagnetventil 13 geschaltet. Der Laugenpumpe 11 unmittelbar vorgelagert ist ein weiteres Elektromagnetventil 15. Die beiden Elektromagnetventile 13, 15, wie auch die weiteren elektrisch betätigbaren Gerätekomponenten, werden von einer hier nicht dargestellten Steuereinrichtung angesteuert. Die Elektromagnetventile 13, 15 geben wechselweise die Rücklaufleitung 9 oder die Ablaufleitung 5 frei. Stromauf der ersten Verzweigungsstelle 8 ist ein Steuerelement 17 angeordnet, das beim Befüllen des Laugenbehälters 1 dessen Abflussbereich 6 schließt.Downstream of the first branching point 8, a drain pump 1 1 is connected in the discharge line 5, which conveys spent washing or rinsing water into the drainage system. In the return line 9, a solenoid valve 13 is connected as a blocking element. The drain pump 11 is directly upstream of another solenoid valve 15. Die Both solenoid valves 13, 15, as well as the other electrically actuated device components are controlled by a control device, not shown here. The solenoid valves 13, 15 alternately release the return line 9 or the drain line 5. Upstream of the first branching point 8, a control element 17 is arranged, which closes its discharge region 6 when filling the tub 1.
Der Speicherbehälter 7 ist in einem geschlossenen Rückführkreislauf angeordnet. In dem Rückführkreislauf wird nach einem später beschriebenen Spülgang vom Laugenbehälter 1 kommende Spülflüssigkeit im Speicherbehälter 7 zwischengespeichert. Das im Speicher- behälter 7 gespeicherte Spülwasser wird dann über die Umwälzleitung 19 sowie der darin angeordneten Umwälzpumpe 21 in den Laugenbehälter 1 rückgeführt. Aufgrund der Füllstandänderungen im Speicherbehälter 7 erfolgt über eine Belüftungsleitung 23, die den Speicherbehälter 7 mit dem Laugenbehälter 1 verbindet, ein Druckausgleich.The storage container 7 is arranged in a closed return circuit. In the return cycle flushing liquid coming from the tub 1 is cached in the storage container 7 after a rinse cycle described later. The rinse water stored in the storage tank 7 is then returned to the tub 1 via the recirculation line 19 and the circulating pump 21 arranged therein. Due to the level changes in the storage tank 7 takes place via a vent line 23 which connects the storage tank 7 with the tub 1, a pressure compensation.
Zur Messung eines Flüssigkeitsstandes im Laugenbehälter 1 ist in dessen Abflussbereich 6 eine Steigleitung 24 angeschlossen, an deren freiem Ende ein Niveausensor 26 angeordnet ist. Als Niveausensor 26 kann ein analoger Drucksensor verwendet werden, mit dem beliebige Niveaus meßbar sind. Der Signalausgang des Sensors 26 ist mit der nicht dargestellten Steuereinrichtung verbunden, die in jedem einzelnen Waschpro- grammabschnitt die vorgegebenen Flüssigkeitsstände im Laugenbehälter 1 regelt. Ebenso ist auch dem Speicherbehälter 7 über eine Steigleitung 27 ein Niveausensor 28 zugeordnet, der den Flüssigkeitsstand im Speicherbehälter 7 erfasst. Bodenseitig ist der Speicherbehälter 7 an eine Abflussleitung 25 angeschlossen. Bei Freigabe der Abschlussleitung 25 kann der Speicherbehälter 7, etwa im Kundendienstfall, entleert werden.For measuring a liquid level in the tub 1, a riser 24 is connected in the drain region 6, at the free end of a level sensor 26 is arranged. As the level sensor 26, an analog pressure sensor can be used, with which arbitrary levels can be measured. The signal output of the sensor 26 is connected to the control device, not shown, which regulates the predetermined liquid levels in the tub 1 in each individual wash program section. Likewise, a level sensor 28 is associated with the storage container 7 via a riser 27, which detects the liquid level in the storage container 7. On the bottom side, the storage container 7 is connected to a discharge line 25. When the termination line 25 is released, the storage container 7 can be emptied, for example during servicing.
Das Waschprogramm der Waschmaschine weist bekanntermaßen einen Waschprogrammabschnitt sowie einen Spülprogrammabschnitt auf. Der Spülprogrammabschnitt ist in einzelne Spülgänge unterteilt. Nach dem Start des Waschprogrammabschnittes wird über die Zuleitung 4 sowie über den Waschmitteleinspülkasten 31 Waschflüssigkeit in den Laugenbehälter 1 eingespeist, bis der Niveausensor 26 ein vorgegebenes Flüssigkeitsniveau im Laugenbehälter 1 erfasst. Nach dem Waschgang werden die Spülgänge durchgeführt. Für jeden Spülgang wird eine vorgegebene Frischwasser-Menge in den Laugenbehälter 1 geleitet. Zum Ende des jeweiligen Spülganges wird der Laugenbehälter 1 mit Schleudern entleert und das Spülwasser über die Ablaufleitung 5 mit Hilfe der Laugenpumpe 11 in das Abwassersystem abgeführt. Hierzu ist das in der Rücklaufleitung 9 geschaltete Elektromagnetventil 13 geschlossen, während das der Laugenpumpe 1 1 vorgeschaltete Elektromagnetventil 15 geöffnet ist.The washing program of the washing machine is known to include a washing program section and a washing program section. The wash program section is divided into individual wash cycles. After the start of the washing program section, washing liquid is fed into the tub 1 via the supply line 4 and via the detergent dispenser box 31 until the level sensor 26 detects a predetermined liquid level in the tub 1. After the wash, the rinses are performed. For each rinse a predetermined amount of fresh water is passed into the tub 1. At the end of the respective rinse the tub 1 is emptied with slings and the rinse water discharged through the drain line 5 by means of the drain pump 11 into the sewer system. For this purpose, the switched in the return line 9 solenoid valve 13 is closed, while the drain pump 1 1 upstream solenoid valve 15 is opened.
Beim letzten Spülgang wird demgegenüber die Laugenpumpe 1 1 ausgeschaltet und das vorgeschaltete Elektromagnetventil 15 geschlossen, während die Rücklaufleitung 9 zum Speicherbehälter 7 geöffnet wird. Der Speicherbehälter 7 ist gemäß der Fig. 1 um eine Höhendifferenz Ah1 unterhalb des Laugenbehälters 1 angeordnet, so dass unter Schwerkraftwirkung die Spülflüssigkeit des letzten Spülganges in den Speicherbehälter 7 einströmt und darin zwischengespeichert wird.In the last rinse, by contrast, the drain pump 1 1 is turned off and the upstream solenoid valve 15 is closed, while the return line 9 is opened to the storage tank 7. According to FIG. 1, the storage container 7 is arranged below the tub 1 by a height difference Ah 1 , so that under gravity the flushing liquid of the last wash cycle flows into the storage container 7 and is temporarily stored therein.
Beim Start des darauffolgenden Waschganges wird der Laugenbehälter 1 nicht nur über die Zuleitung 4 mit Frischwasser versorgt, sondern auch über die zusätzliche Umwälzleitung 19 mit der im Speicherbehälter 7 gespeicherten Spülflüssigkeit. Die für den Waschgang erforderliche Frischwassermenge kann daher um den Betrag der gespeicherten Spülflüssigkeitsmenge reduziert werden.At the start of the subsequent wash cycle of the tub 1 is supplied not only via the supply line 4 with fresh water, but also on the additional circulation line 19 with the rinsing liquid stored in the storage tank 7. The amount of fresh water required for the wash cycle can therefore be reduced by the amount of the amount of flushing fluid stored.
Das in der Fig. 2 gezeigte zweite Ausführungsbeispiel entspricht funktionell dem ersten Ausführungsbeispiel, so dass gleichwirkende Gerätekomponenten oder Flüssigkeitsleitungen mit denselben Bezugsziffern versehen sind.The second embodiment shown in FIG. 2 corresponds functionally to the first embodiment, so that the same effect device components or liquid lines are provided with the same reference numerals.
Im Unterschied zur Fig. 1 zweigt die zum Speicherbehälter 7 führende Rücklaufleitung 9 nicht stromauf, sondern stromab der Laugenpumpe 11 von der Ablaufleitung 5 ab. In der ersten Verzweigungsstelle 8 ist ein Dreiwegeventil 29 vorgesehen, das je nach Schaltstellung die Ablaufleitung 5 oder die Rücklaufleitung 9 freigibt. Stromab dieser ersten Verzweigungsstelle 8 ist in der Ablaufleitung 5 eine zweite Verzweigungsstelle 22 vorgesehen, in der die Umwälzleitung 19 von der Ablaufleitung 5 abzweigt. In der zweiten Verzweigungsstelle 22 ist ebenfalls ein Dreiwegeventil 30 vorgesehen. Mittels der Umwälzleitung 19 kann Spülflüssigkeit über den Wasserspülkasten 31 wieder in den Laugenbehälter 1 rückgeführt werden. Im Rückführkreislauf der Waschmaschine der Fig. 2 ist daher der Laugenbehälter 1 , die in der Ablaufleitung 5 angeordnete Laugenpumpe 11 sowie die Umwälzleitung 19 geschaltet. Der Speicherbehälter 7 ist demgegenüber in Parallelschaltung zur Ablaufleitung 5 angeordnet.In contrast to FIG. 1, the return line leading to the storage tank 7 9 does not branch upstream, but downstream of the drain pump 11 from the drain line 5. In the first branching point 8, a three-way valve 29 is provided, which releases the drain line 5 or the return line 9 depending on the switching position. Downstream of this first branching point 8, a second branching point 22 is provided in the discharge line 5, in which the circulation line 19 branches off from the discharge line 5. In the second branching point 22, a three-way valve 30 is also provided. By means of the circulation line 19 rinsing liquid can be recycled via the water cistern 31 back into the tub 1. In the return circuit of the washing machine of FIG. 2, therefore, the tub 1, the drain pump 5 arranged in the drain pump 11 and the circulation line 19 is connected. The storage container 7 is arranged in contrast to the drain line 5 in contrast.
Zu Beginn des Waschprogrammes wird, wie in der Fig. 1 , zunächst für den Waschgang über die Zuleitung 4 Frischwasser in den Laugenbehälter 1 eingespeist. Nach dem Ende des Waschganges wird die Waschflüssigkeit über die Laugenpumpe 1 1 vorbei an den Speicherbehälter 7 in das Abwassersystem geführt. Die Schaltstellungen der Dreiwege- ventile 29, 30 sind dabei so wie in der Fig. 2 gezeigt. Bei den nachfolgenden Spülgängen werden - mit Ausnahme des letzten Spülganges - ebenfalls die Spülflüssigkeits-Mengen von der Laugenpumpe 11 über die Ablaufleitung 5 in das Abwassersystem abgeführt.At the beginning of the washing program, as shown in FIG. 1, first fresh water is fed into the tub 1 for the wash cycle via the supply line 4. After the end of the wash cycle, the washing liquid is passed over the drain pump 1 1 past the storage container 7 in the sewer system. The switching positions of the three-way valves 29, 30 are as shown in FIG. 2. In the subsequent rinses - with the exception of the last rinse cycle - also the rinsing liquid quantities are discharged from the drain pump 11 via the drain line 5 into the sewage system.
Beim letzten Spülgang wird demgegenüber das Dreiwegeventil 29 der ersten Ver- zweigungsstelle 8 in seine zweite Schaltstellung verbracht, in der die Spülflüssigkeit mittels der Laugenpumpe 1 1 in den Speicherbehälter 7 gefördert wird. Zum Druckausgleich ist der Speicherbehälter 7 über die Belüftungsleitung 23 mit dem Laugenbehälter 1 verbunden. Die somit im Speicherbehälter 7 zwischengespeicherte Spülflüssigkeit wird beim Start des darauffolgenden Waschprogrammes für den Waschgang eingesetzt.In the last rinse, on the other hand, the three-way valve 29 of the first branching point 8 is moved into its second switching position in which the rinsing liquid is conveyed into the storage container 7 by means of the rinse pump 11. For pressure equalization of the storage tank 7 is connected via the vent line 23 to the tub 1. The rinsing liquid thus cached in the storage container 7 is used for the start of the subsequent washing program for the wash cycle.
Beim Start des Waschganges wird daher nicht nur Frischwasser über die Zuleitung 4 in den Laugenbehälter 1 gespeist, sondern zusätzlich auch die im Speicherbehälter 7 zwischengespeicherte Spülflüssigkeit. Zur Einspeisung der im Speicherbehälter 7 zwischengespeicherten Spülflüssigkeit in den Rührführkreislauf wird die Laugenpumpe 1 1 außer Betrieb gesetzt und das erste Elektromagnetventil 29 in die zweite Schaltstellung verbracht. Auf diese Weise kann die zwischengespeicherte Spülflüssigkeit durch Schwerkraftwirkung vom Speicherbehälter 7 in den Laugenbehälter 1 abströmen. Hierzu ist der Speicherbehälter 7 um eine Höhendifferenz U2 oberhalb der im Laugenbehälter 1 vorgegebenen Flüssigkeitsniveaus angeordnet.When starting the wash cycle, therefore, not only fresh water is fed via the feed line 4 into the tub 1, but in addition also the flushing liquid cached in the storage container 7. For feeding the cached in the storage tank 7 rinsing liquid in the Rührführkreislauf the drain pump 1 1 is put out of action and spent the first solenoid valve 29 in the second switching position. In this way, the cached rinsing liquid can flow by gravity from the storage tank 7 into the tub 1. For this purpose, the storage container 7 is arranged at a height difference U 2 above the predetermined liquid levels in the tub 1.
Nach erfolgter Entleerung des Speicherbehälters 7 wird die rückgeführte Spülflüssigkeit im Rückführkreislauf umgewälzt. Hierzu wird das erste Elektromagnetventil 29 wieder in die in der Fig. 2 gezeigte Schaltstellung verbracht, während das zweite Elektromagnetventil 30 in seine zweite Schaltstellung verbracht wird. Bei eingeschalteter Laugenpumpe 11 wird daher die Spülflüssigkeit über die Ablaufleitung 5 sowie die nunmehr freigegebene Umwälzleitung 19 in den Waschmitteleinspülkasten 31 gefördert und von dort in den Laugenbehälter 1 eingespeist, bis eine gleichmäßige Wasch- mitteldurchmischung gewährleistet ist. Die Laugenpumpe 1 1 wirkt daher in Doppelfunktion während des Umwälzbetriebes auch als Umwälzpumpe.After emptying of the storage container 7, the recirculated rinsing liquid is circulated in the return circuit. For this purpose, the first solenoid valve 29 is back in The switching position shown in Fig. 2 spent while the second solenoid valve 30 is moved to its second switching position. When the drain pump 11 is switched on, therefore, the flushing liquid is conveyed via the drain line 5 and the now released circulation line 19 into the detergent dispenser 31 and from there fed into the tub 1 until a uniform detergent mixing is ensured. The drain pump 1 1 therefore also acts as a double function during the circulation operation as a circulation pump.
Wie aus der Fig. 2 weiter hervorgeht, ist zwischen dem Laugenbehälter 1 und der Laugenpumpe 1 1 ein Heizelement 33 geschaltet, der während des Umwälzbetriebes die Waschflüssigkeit erwärmt. As is further apparent from FIG. 2, a heating element 33 is connected between the tub 1 and the drain pump 1 1 and heats the washing liquid during the circulation operation.
BEZUGSZEICHENLISTELIST OF REFERENCE NUMBERS
1 Laugenbehalter1 lye container
3 Waschtrommel3 washing drum
4 Zuleitung4 supply line
5 Ablaufleitung5 drain line
6 Abflussbereich6 drainage area
7 Speicherbehälter7 storage tanks
8 erste Verzweigungsstelle8 first branch point
9 Rücklaufleitung9 return line
11 Laugenpumpe11 drain pump
13, 15 Sperrelemente13, 15 blocking elements
17 Rückschlagventil17 check valve
19 Umwälzleitung19 circulation line
21 Umwälzpumpe21 circulation pump
22 zweite Verzweigungsstelle22 second branch point
23 Belüftungsleitung23 ventilation line
24 Steigleitung24 riser
25 Abflussleitung25 drain line
26 Niveausensor26 level sensor
27 Steigleitung27 riser
28 Niveausensor28 level sensor
29, 30 Dreiwegeventile29, 30 three-way valves
31 Waschmitteleinspülkasten31 detergent dispenser
33 Heizelement33 heating element
Ah1 HöhendifferenzAh 1 height difference
Δh2 Höhendifferenz Δh 2 height difference

Claims

PATENTANSPRÜCHE
1. Waschmaschine mit einem Laugenbehälter (1 ), in dem eine Waschtrommel (3) drehbar angeordnet ist und der mit einer Ablaufleitung (5) verbunden ist, sowie einem, strömungstechnisch über eine Rücklaufleitung (9) mit dem Laugenbehälter (1 ) verbundenen Speicherbehälter (7), in dem Spülflüssigkeit für eine erneute Einspei- sung gespeichert ist, dadurch gekennzeichnet, dass die Rücklaufleitung (9) stromab des Laugenbehälters (1 ) von der Ablaufleitung (5) abgezweigt ist.1. Washing machine with a tub (1) in which a washing drum (3) is rotatably mounted and which is connected to a drain line (5), and a, fluidically via a return line (9) to the tub (1) connected storage container ( 7), is stored in the rinsing liquid for refeeding, characterized in that the return line (9) downstream of the tub (1) is branched off from the drain line (5).
2. Waschmaschine nach Anspruch 1 , dadurch gekennzeichnet, dass die Rücklaufleitung (9) stromauf oder stromab einer in die Ablaufleitung (5) geschalteten Laugenpumpe (1 1 ) abzweigt.2. Washing machine according to claim 1, characterized in that the return line (9) branches off upstream or downstream of a drain pipe (5) connected to the drain pump (1 1).
3. Waschmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass in der Rücklaufleitung (9) und/oder in der Ablaufleitung (5) ein von einer Steuereinrichtung ansteuerbares Sperrelement (13, 15), etwa ein Elektromagnetventil, angeordnet ist.3. Washing machine according to claim 1 or 2, characterized in that in the return line (9) and / or in the drain line (5) a controllable by a control device blocking element (13, 15), such as a solenoid valve, is arranged.
4. Waschmaschine nach einem der vorhergehenden Ansprüche, dadurch gekenn- zeichnet, dass stromauf der abzweigende Rücklaufleitung (9) ein Rückschlagventilelement (17) in der Ablaufleitung (5) vorgesehen ist, das beim Befüllen des Laugenbehälters (1 ) die Ablaufleitung (5) schließt.4. Washing machine according to one of the preceding claims, characterized in that upstream of the branching return line (9) a check valve element (17) in the drain line (5) is provided which closes the drain line (5) when filling the tub (1) ,
5. Waschmaschine nach einem der vorhergehenden Ansprüche, dadurch gekenn- zeichnet, dass der Speicherbehälter (7) um eine Höhendifferenz (Ah1) unterhalb des5. Washing machine according to one of the preceding claims, characterized in that the storage container (7) by a height difference (Ah 1 ) below the
Laugenbehälters (1 ) angeordnet ist.Lye container (1) is arranged.
6. Waschmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Speicherhälter (7) in einem geschlossenen Rückführkreislauf über eine Umwälzleitung (19) mit dem Laugenbehälter (1 ) in Verbindung ist. 6. Washing machine according to one of the preceding claims, characterized in that the storage container (7) in a closed return circuit via a recirculation line (19) with the tub (1) is in communication.
7. Waschmaschine nach Anspruch 6, dadurch gekennzeichnet, dass in der Umwälzleitung (19) eine Förderpumpe (21 ) angeordnet ist.7. Washing machine according to claim 6, characterized in that in the recirculation line (19) a feed pump (21) is arranged.
8. Waschmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass dem Speicherbehälter (7) eine Belüftungsleitung (23) zugeordnet ist, die vorzugsweise in den Laugenbehälter (1 ) mündet.8. Washing machine according to one of the preceding claims, characterized in that the storage container (7) is associated with a ventilation line (23), which preferably opens into the tub (1).
9. Waschmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass dem Speicherbehälter (7) eine zusätzliche Abflussleitung (25) zur Entleerung des Speicherbehälters (7) zugeordnet ist.9. Washing machine according to one of the preceding claims, characterized in that the storage container (7) is associated with an additional drain line (25) for emptying the storage container (7).
10. Waschmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass stromab einer ersten Verzweigungsstelle (8) zur Rücklaufleitung (9) in einer zweiten Verzweigungsstelle (22) eine Umwälzleitung (19) von der Ablaufleitung (5) abzweigt.10. Washing machine according to one of the preceding claims, characterized in that downstream of a first branching point (8) to the return line (9) in a second branching point (22) branches off a recirculation line (19) of the discharge line (5).
11. Waschmaschine nach Anspruch 10, dadurch gekennzeichnet, dass die Umwälzleitung (19) in einem geschlossenen Rückführkreislauf, vorzugsweise über einen Waschmitteleinspülkasten (31 ), mit dem Laugenbehälter (1 ) in Verbindung ist.11. Washing machine according to claim 10, characterized in that the circulation line (19) in a closed return circuit, preferably via a Waschmitteleinspülkasten (31), with the tub (1) is in communication.
12. Waschmaschine nach Anspruch 10 oder 11 , dadurch gekennzeichnet, dass der ersten und/oder zweiten Verzweigungsstelle (8, 22) jeweils zumindest ein Steuerelement (29, 30) zugeordnet ist, vorzugsweise ein Dreiwegeventil, das eine Flüssigkeitsströmung durch die Rücklaufleitung (9) und/oder durch die Umwälzleitung (19) freigibt.12. Washing machine according to claim 10 or 11, characterized in that the first and / or second branching point (8, 22) in each case at least one control element (29, 30) is associated, preferably a three-way valve, the liquid flow through the return line (9). and / or by the recirculation line (19) releases.
13. Verfahren zur Rückgewinnung von Spülflüssigkeit während eines Waschprogramms mit zumindest einem Waschgang und einem Spülgang in einer Waschmaschine, insbesondere nach einem der vorhergehenden Ansprüche, bei dem nach erfolgtem Spülgang die Spülflüssigkeit von einem Laugenbehälter (1 ) in einen Speicherbehälter (7) geleitet wird, und in einem darauffolgenden Waschprogramm in den Laugenbehälter (1 ) rückgeführt wird. 13. A method for recovering rinsing liquid during a washing program with at least one washing cycle and a rinse cycle in a washing machine, in particular according to one of the preceding claims, wherein after rinsing the rinsing liquid from a tub (1) in a storage container (7) is passed, and in a subsequent washing program in the tub (1) is recycled.
EP09749708.5A 2008-05-19 2009-05-04 Washing machine and method for recycling rinsing fluid in a washing machine Active EP2283180B1 (en)

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ES200801565A ES2354104B1 (en) 2008-05-19 2008-05-19 WASHING MACHINE AND PROCEDURE FOR THE RECOVERY OF RINSE LIQUID IN A WASHING MACHINE.
PCT/EP2009/055337 WO2009141218A1 (en) 2008-05-19 2009-05-04 Washing machine and method for recycling rinsing fluid in a washing machine

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ES2354104A1 (en) 2011-03-10
WO2009141218A1 (en) 2009-11-26
PL2283180T3 (en) 2015-05-29
ES2354104B1 (en) 2012-01-25
EP2283180B1 (en) 2014-12-31

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