EP4339347B1 - Machine à laver et procédé de fonctionnement d'une machine à laver - Google Patents

Machine à laver et procédé de fonctionnement d'une machine à laver

Info

Publication number
EP4339347B1
EP4339347B1 EP23192595.9A EP23192595A EP4339347B1 EP 4339347 B1 EP4339347 B1 EP 4339347B1 EP 23192595 A EP23192595 A EP 23192595A EP 4339347 B1 EP4339347 B1 EP 4339347B1
Authority
EP
European Patent Office
Prior art keywords
filter
flow
washing machine
outlet
waste water
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.)
Active
Application number
EP23192595.9A
Other languages
German (de)
English (en)
Other versions
EP4339347A1 (fr
EP4339347C0 (fr
Inventor
Ralf Templin
Katrin Mäder
Stefan Trautmann
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
Original Assignee
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
Publication of EP4339347A1 publication Critical patent/EP4339347A1/fr
Application granted granted Critical
Publication of EP4339347B1 publication Critical patent/EP4339347B1/fr
Publication of EP4339347C0 publication Critical patent/EP4339347C0/fr
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 
    • D06F39/08—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
    • 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 
    • D06F33/43—Control of cleaning or disinfection of washing machine parts, e.g. of tubs
    • 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
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/14—Supply, recirculation or draining of washing liquid
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/38—Time, e.g. duration
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/34—Filtering, e.g. control of lint removal devices

Definitions

  • the invention relates to a washing machine according to the preamble of claim 1 and a method for operating the washing machine.
  • Filter devices for washing machines, washing machines equipped therewith, and methods for operating them are already known in the prior art in a multitude of embodiments.
  • the known filter devices for washing machines comprise a filter with a raw side having a filter inlet and a clean side having at least one filter outlet, wherein the filter inlet is configured for a flow-conducting connection with a pump outlet of a wastewater pump of the washing machine, and one of the at least one filter outlet is configured for a flow-conducting connection with a drain line of the washing machine for removing wastewater from the washing machine.
  • the document WO 2019/045632 A1 Disclosing a filter device for use in a washing machine, comprising a filter, wherein the filter inlet is configured for a flow-conducting connection with a pump outlet of a wastewater pump of the washing machine and the filter outlet is configured for a flow-conducting connection with a drain line of the washing machine for discharging wastewater from the washing machine.
  • the documents also EP 3 907 322 A1 and WO 2021/197937 A1 reveal a suitable filter device for use in or on a washing machine.
  • the invention thus addresses the problem of filter devices for washing machines, To improve washing machines with filter devices and methods for operating washing machines.
  • the advantage achievable with the invention lies particularly in the fact that filter devices for washing machines, washing machines with filter devices, and methods for operating washing machines are improved. Due to the inventive design of the washing machine and the method for operating the washing machine, the washing machine's wastewater system can be consistently separated from the washing machine's water inlet, so that, for example, germs or the like cannot enter the washing machine's water inlet area. This is effectively prevented.
  • the continuous bypass flow through the drain pump and filter during the pumping cycle (emptying the washing machine's tub) rinses the filter with cleaning solution and reduces biofilm formation, for example. This effectively counteracts clogging of the drain pump. Furthermore, the continuous bypass flow prevents the drain pump from running intermittently, similar to running dry. Instead, the drain pump always pumps liquid during the pumping cycle, significantly reducing both the risk of the pump motor overheating and the pump's noise emissions.
  • the filter device according to the invention for the washing machine can be freely selected within wide suitable limits with regard to type, function, material, dimensions, and arrangement within the washing machine.
  • the invention can be advantageously used both in washing machines designed as household appliances and in commercial washing machines, i.e., washing machines for professional use.
  • the filter of the filter device according to the invention is designed as a microparticle filter for removing microplastics or the like from the wastewater. Microplastics have become a very serious problem for the environment today, so the release of microplastics into the environment should be avoided as much as possible.
  • the washing machine's filter system includes a valve with a flow-conducting inlet connected to the pump outlet, a first flow-conducting outlet connected to the inlet for a flow-conducting connection to the filter inlet, and a second flow-conducting outlet connected to the inlet for a direct flow-conducting connection to the drain line. This allows the wastewater to be directed either directly into the washing machine's drain line or via the filter into the drain line.
  • a particularly advantageous embodiment of the washing machine according to the invention provides that the filter device has a combined inlet and outlet for the filter, wherein the inlet and outlet are connected to the first filter outlet in a flow-conducting manner, preferably that the inlet and outlet are simultaneously connected to the drain line in a flow-conducting manner, and particularly preferably that the inlet and outlet are connected to the drain line in a flow-conducting manner by means of a backflow preventer to prevent backflow from the drain line to the clean side of the filter.
  • a backflow preventer to prevent backflow from the drain line to the clean side of the filter.
  • the preferred This embodiment of the further development offers the additional advantage that, without significant additional structural effort, the drain line can also be vented and aerated simultaneously using the aforementioned ventilation system. Furthermore, according to the particularly preferred embodiment of this development, the backflow preventer prevents wastewater from flowing from the drain line onto the clean side of the filter in an undesired manner.
  • a further advantageous embodiment of the washing machine according to the invention provides that the filter device has a restrictor arranged downstream of the second filter outlet in the direction of flow, preferably that the restrictor is arranged upstream of a return line for returning gases from the vent to a washing machine tub in the flow-conducting connection of the filter with the pump inlet.
  • This return line is connected to the aforementioned flow-conducting connection and the combined air inlet and outlet.
  • the preferred embodiment of this further development has the additional advantage that pipe lengths can be saved for the return of gases from the ventilation and aeration to the washing machine's tub for the purpose of degassing by means of an emergency overflow connected to the tub in a flow-conducting manner known to those skilled in the art.
  • Another advantageous embodiment of the washing machine according to the invention provides that the filter device is designed as a single unit. This significantly simplifies warehousing, logistics, and the manufacturing of the washing machine equipped with it. Furthermore, it is possible to purchase the filter device according to the present embodiment as a complete unit from a supplier.
  • the filter is located in an upper section of the washing machine, at a height above the tub. This allows for a particularly simple, gravity-driven emptying of the filter after the tub has finished draining, both in terms of design and manufacturing.
  • a further advantageous embodiment of the washing machine according to the invention provides that the second filter outlet of the filter is connected to the pump inlet by means of a flow-conducting downpipe, preferably that the downpipe is designed to separate the filter media.
  • Gas flowing from the lye tank inlet and wastewater flowing towards the wastewater pump by means of a downpipe outlet of the The downpipe, which rises towards the inlet of the lye tank, is connected to an upper section of the lye tank in a flow-conducting manner.
  • the design of the flow-conducting connection as a downpipe facilitates the gravity-driven flow of the wastewater towards the pump inlet.
  • the preferred embodiment also has the additional advantage that any gas contained in the flow is not undesirably carried along by the wastewater towards the pump inlet, but is instead released into the environment via the connecting pipe, the lye tank, and the emergency overflow.
  • An advantageous further development of the aforementioned embodiment of the washing machine according to the invention provides that the return line is connected to the drain line in a flow-conducting manner by means of a drain line connection arranged in the flow direction between the restrictor and the drain line outlet.
  • the internal diameter of the drain line downstream of the restrictor is larger than upstream of the restrictor.
  • the venting of the filter, or of the filter and the drain line is also connected to the emergency overflow via the drain line and the connecting line to it in a flow-conducting manner for the purpose of degassing.
  • An additional flow-conducting connection from the aforementioned venting to the surrounding environment is not required.
  • the preferred embodiment of this further development has the additional advantage that the unwanted carryover of gas flowing in the drain line from the wastewater towards the wastewater pump is effectively prevented in a structurally and manufacturably simple manner.
  • a particularly advantageous embodiment of the washing machine according to the invention provides that the washing machine is designed such that the filter can be removed directly from the washing machine. This allows for replacement or maintenance of the filter, for example, to remove the filter cake. Thanks to the invention, removing the filter from the washing machine is significantly simplified and less messy. This is because the filter is essentially emptied of wastewater before it is removed via the drainage system, for example, by means of the aforementioned drain pipe.
  • FIG. 1 An embodiment of the washing machine according to the invention, including the filter device according to the invention for carrying out the method according to the invention, is shown purely by way of example.
  • the washing machine 2 designed as a household appliance, comprises a tub 4, an emergency overflow 6 connected to an upper area of the tub 4 in a flow-conducting manner, a wastewater pump 14 connected to the tub 4 by means of a pump inlet 8 and to a drain line 10 of the washing machine 2 by means of a pump outlet 12 in a flow-conducting manner for pumping wastewater (not shown) from the tub 4 into the drain line 10, and a filter device 16 for filtering the wastewater before it is introduced into the drain line 10.
  • the filter device 16 comprises a filter 18 designed as a microparticle filter for removing microplastics (not shown) from the wastewater, with a raw side 22 having a filter inlet 20 and a clean side 28 having at least one filter outlet 24, 26, wherein the filter inlet 20 is designed for flow-conducting connection with the pump outlet 12 of the wastewater pump 14 of the washing machine 2 and one of the at least one filter outlet 24 is designed for flow-conducting connection with the drain line 10 of the washing machine 2 for discharging wastewater from the washing machine 2.
  • the filter device 16 is designed for installation in the washing machine 2, wherein a first filter outlet 24 of the clean side 28 of the filter 18 is designed for flow-conducting connection with the drain line 10 and a second filter outlet 26 of the clean side 28 of the filter 18 is designed for flow-conducting connection with the pump inlet 8 of the wastewater pump 14.
  • the filter device 16 has a valve 30 designed as a 3-way valve, wherein the valve 30 has a valve inlet 32 connected to the pump outlet 12 in a flow-conducting manner, a first valve outlet 34 which can be connected to the valve inlet 32 in a flow-conducting manner for the flow-conducting connection with the filter inlet 20 and a second valve outlet 36 which can be connected to the valve inlet 32 in a flow-conducting manner for the direct flow-conducting connection with the drain line 10.
  • the filter device 16 has a combined inlet and outlet 38 for the filter 18, wherein the inlet and outlet 38 is flow-conductingly connected to the first filter outlet 24, and wherein the inlet and outlet 38 is simultaneously flow-conductingly connected to the outlet line 10, namely in such a way that the inlet and outlet 38 is connected by means of a
  • the backflow preventer 40 is connected to the drain line 10 in a flow-conducting manner to prevent a backflow (not shown) from the drain line 10 to the clean side 28 of the filter 18.
  • the filter device 16 also has a throttle 42 arranged in the flow direction after the second filter outlet 26, wherein the throttle 42 is arranged in the flow-conducting connection of the filter 18 with the pump inlet 8 in the flow direction upstream of a return line 44 for the return of gases (not shown) from the vent 38 to the tub 4 of the washing machine 2.
  • the filter device 16 is designed here as a single unit. See also the dashed outline of the filter device 16 described above in the Fig. 1 , which illustrates this circumstance.
  • the filter device is not arranged as a single unit, but, for example, distributed throughout the interior of the washing machine.
  • the filter 18 is located in an upper area of the washing machine 2 at a height above the tub 4.
  • the second filter outlet 26 of the filter 18 is connected here to the pump inlet 8 by means of a flow-conducting downpipe 46, wherein the downpipe 46 is connected to an upper area of the alkaline tank 4 by means of a connecting line 52 rising from a downpipe outlet 50 of the downpipe 46 towards the alkaline tank inlet 48 in a flow-conducting manner in order to separate gas flowing to a lye tank inlet 48 of the alkaline tank 4 and wastewater flowing to the wastewater pump 14.
  • the return line 44 is connected to the downpipe 46 in a flow-conducting manner by means of a downpipe connection 54 arranged in the flow direction between the throttle 42 and the downpipe outlet 50, wherein the clear diameter of the downpipe 46 in the flow direction after the throttle 42 is larger than in the flow direction before the throttle 42.
  • the washing machine 2 is also designed in such a way that the filter 18 can be removed from the washing machine 2 on site, i.e. at the installation location of the washing machine 2 at the end customer's premises.
  • the valve 30 is automatically adjusted so that the pump outlet 12 is connected to the filter inlet 20 via the valve inlet 32 and the first valve outlet 34.
  • the liquor i.e., the wastewater
  • the wastewater pump 14 flows from the tub 4 via the pump inlet 8 to the wastewater pump 14.
  • the liquor passes through the valve 30 to the pipe side 22 of the filter 18.
  • the combined venting and aeration 38 of the filter 18 ensures that the wastewater pump 14 does not have to pump against a layer of gas or foam.
  • the filtrate (not shown), i.e., the wastewater filtered by filter 18, from the clean side 28 is largely directed into the drain line 10 via the backflow preventer 40.
  • the appropriately designed vent 38 and the backflow preventer 40 ensure that, firstly, no filtrate from filter 18 is conveyed through the vent 38, and secondly, no filtrate from the drain line 10 can flow back to the clean side 28 of filter 18.
  • the flow rate of the filtrate is divided by the throttle 42, with a defined smaller portion being returned to the suction side of the wastewater pump 14, i.e., to the pump inlet 8, while the larger portion is directed into the drain line 10 and thus into the wastewater installation (not shown). Gases are returned from the vent 38 to the drain line 46 via the return line 44.
  • the vent 38 is then connected to the outside environment via the drain line outlet 50, the connecting line 52, the tub 4, and the emergency overflow 6.
  • the height difference between the drain line outlet 50 and the tub inlet 48 separates the gas and the washing solution, thus preventing re-wetting of the laundry (not shown) processed by washing machine 2.
  • the division of the liquor flow by means of filter 18 creates a continuous flow through filter 18 and the wastewater pump 14.
  • the wastewater pump 14 recirculates a portion of the wastewater and thus does not operate in a gradual, intermittent manner. This allows the wastewater pump 14 to react more quickly to increases in flow rate, and the wastewater pump 14 and the entire wastewater system of the washing machine 2 do not need to be fully vented beforehand.
  • the wastewater pump 14 is already pumping. Due to the partial flow through the filter 18, it is continuously flushed with liquor during operation, thus effectively reducing biofilm formation. This in turn reduces the fouling of the wastewater pump 14.
  • valve 30 is automatically adjusted so that pump outlet 12 is directly connected to drain line 10 via valve inlet 32 and the second valve outlet 36. Filter 18 is thus bypassed, and the wastewater pump 14 pumps directly into drain line 10.
  • the non-return valve 40 prevents filter 18 from being filled from the clean side 28.
  • the vent 38 aerates filter 18, and the wastewater stored in filter 18 can flow through the throttle 42 to the suction side of the wastewater pump 14, i.e., towards pump inlet 8, and is then pumped out of washing machine 2 by wastewater pump 14 and drain line 10.
  • the wastewater from filter 18 is therefore not carried over into the next process step of the automatic program.
  • the drainage of the washing machine's tub 4 is automatically stopped.
  • the wastewater system of the washing machine 2 is consistently separated from the water inlet (not shown) of the washing machine 2, thus effectively preventing, for example, the introduction of germs or the like into the water inlet area of the washing machine 2.
  • the continuous bypass flow through the wastewater pump 14 and the filter 18 rinses the filter 18 with cleaning solution and reduces, for example, biofilm formation. This effectively counteracts clogging of the wastewater pump 14.
  • the continuous bypass flow prevents so-called "slurping" operation of the wastewater pump 14, which is comparable to the wastewater pump 14 running dry. Instead, the wastewater pump 14 always pumps liquid, i.e. wastewater, during pumping, so that on the one hand the risk of overheating of a motor (not shown) of the wastewater pump 14 and on the other hand the noise emission of the wastewater pump 14 are significantly reduced.
  • the vent 38 ensures that the wastewater pump 14 quickly reaches its delivery capacity.
  • the bypass or leakage flow is directed with the gas from the vent 38 in the downpipe 46 to the suction side of the wastewater pump 14.
  • the liquid and gas phases are separated via the downpipe outlet 50 to the tubing 4. Only the gas phase is returned to the tubing 4. This reduces the risk of aerosol formation in a drum gap of a device located in the tubing 4 and in the Fig. 1 drum not shown Washing machine 2 is loaded with laundry to improve the spin-drying result.
  • filter 18 is emptied in a controlled manner.
  • the water carried over in filter 18 can be pumped directly into the drain line 10 and thus into the house's water supply connected to it. This empties filter 18, preventing it from leaking into the room where washing machine 2 is located, for example, if the drain line 10 (designed as a drain hose) is dropped. Removing filter 18 from washing machine 2 is easier because it is now empty.
  • the filter 18 of the filter device 16 of the present embodiment is designed as a microparticle filter for removing microplastics or the like from the wastewater, it can effectively prevent, for example, the release of minute fibers that have detached from the textiles during the washing process when washing synthetic fabrics into the environment via the wastewater discharged from the washing machine 2 through the drain line 10. Microplastics have become a very serious environmental problem today, so their release into the environment should be avoided as much as possible.
  • the invention is not limited to the present embodiment. See, for example, the relevant explanations in the introductory section.

Landscapes

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

Claims (9)

  1. Lave-linge (2), comprenant une cuve de lessivage (4), un trop-plein de secours (6) relié à une zone supérieure de la cuve de lessivage (4) d'une manière conductrice d'écoulement, une pompe à eaux usées (14) reliée d'une manière conductrice d'écoulement à la cuve de lessivage (4) au moyen d'une entrée de pompe (8) et à une conduite d'évacuation (10) du lave-linge (2) au moyen d'une sortie de pompe (12) et permettant de transporter les eaux usées de la cuve de lessivage (4) dans la conduite d'évacuation (10), et un dispositif de filtrage (16) permettant de filtrer les eaux usées avant leur introduction dans la conduite d'évacuation (10), comprenant un filtre (18) comportant un côté brut (22) présentant une entrée de filtre (20) et un côté propre (28) présentant au moins une sortie de filtre (24, 26), dans lequel l'entrée de filtre (20) est réalisée pour la liaison d'une manière conductrice d'écoulement avec une sortie de pompe (12) d'une pompe à eaux usées (14) du lave-linge (2) et l'une parmi l'au moins une sortie de filtre (24) est réalisée pour la liaison d'une manière conductrice d'écoulement avec une conduite d'évacuation (10) du lave-linge (2) pour l'évacuation des eaux usées hors du lave-linge (2), dans lequel une première sortie de filtre (24) du côté propre (28) du filtre (18) est réalisée pour la liaison d'une manière conductrice d'écoulement avec la conduite d'évacuation (10) et une seconde sortie de filtre (26) du côté propre (28) du filtre (18) est réalisée pour la liaison d'une manière conductrice de l'écoulement avec une entrée de pompe (8) de la pompe à eaux usées (14), et caractérisé en ce que le dispositif de filtrage (16) présente une soupape (30), dans lequel la soupape (30) présente une entrée de soupape (32) reliée à la sortie de pompe (12) d'une manière conductrice d'écoulement, une première sortie de soupape (34) pouvant être reliée à l'entrée de soupape (32) d'une manière conductrice d'écoulement pour la liaison d'une manière conductrice d'écoulement avec l'entrée de filtre (20) et une seconde sortie de soupape (36) pouvant être reliée à l'entrée de soupape (32) d'une manière conductrice d'écoulement pour la liaison directe d'une manière conductrice d'écoulement avec la conduite d'évacuation (10).
  2. Lave-linge (2) selon la revendication 1, caractérisé en ce que le dispositif de filtrage (16) présente un moyen d'aération et un moyen de ventilation (38) combinés pour le filtre (18), dans lequel le moyen d'aération et le moyen de ventilation (38) sont reliés à la première sortie de filtre (24) d'une manière conductrice d'écoulement, de préférence, en ce que le moyen d'aération et le moyen de ventilation (38) sont reliés simultanément à la conduite d'évacuation (10) d'une manière conductrice d'écoulement, de manière particulièrement préférée, en ce que le moyen d'aération et le moyen de ventilation (38) sont reliés à la conduite d'évacuation (10) d'une manière conductrice d'écoulement au moyen d'un clapet antiretour (40) permettant d'empêcher un retour de l'écoulement de la conduite d'évacuation (10) sur le côté propre (28) du filtre (18).
  3. Lave-linge (2) selon l'une des revendications 1 à 2,
    caractérisé en ce que le dispositif de filtrage (16) présente un étranglement (42) disposé en aval de la seconde sortie de filtre (26) dans le sens de l'écoulement, de préférence, en ce que l'étranglement (42) est disposé dans la liaison d'une manière conductrice d'écoulement du filtre (18) avec l'entrée de pompe (8), dans le sens de l'écoulement, en amont d'une conduite de retour (44) reliée d'une manière conductrice d'écoulement à la liaison conductrice d'écoulement susmentionnée et au moyen d'aération et au moyen de ventilation (38) combinés pour le retour de gaz du moyen d'aération et du moyen de ventilation (38) dans une cuve de lessivage (4) du lave-linge (2).
  4. Lave-linge (2) selon la revendication 3, caractérisé en ce que le dispositif de filtrage (16) est réalisé en tant qu'unité structurale.
  5. Lave-linge (2) selon l'une des revendications 1 à 4, caractérisé en ce que le filtre (18) est disposé dans une zone supérieure du lave-linge (2) à une position en hauteur au-dessus de la cuve de lessivage (4).
  6. Lave-linge (2) selon l'une des revendications 1 à 5, caractérisé en ce que la seconde sortie de filtre (26) du filtre (18) est reliée à l'entrée de pompe (8) d'une manière conductrice d'écoulement au moyen d'une conduite de chute (46), de préférence, en ce que la conduite de chute (46) est reliée à une zone supérieure de la cuve de lessivage (4) d'une manière conductrice d'écoulement au moyen d'une conduite de liaison (52) montant d'une sortie de conduite de chute (50) de la conduite de chute (46) en direction de l'entrée de cuve de lessivage (48), dans le but de séparer du gaz s'écoulant vers une entrée de cuve de lessivage (48) de la cuve de lessivage (4) et les eaux usées s'écoulant vers la pompe à eaux usées (14).
  7. Lave-linge (2) selon les revendications 3 et 6, caractérisé en ce que la conduite de retour (44) est reliée à la conduite de chute (46) d'une manière conductrice d'écoulement au moyen d'un raccord de conduite de chute (54) disposé dans le sens de l'écoulement entre l'étranglement (42) et la sortie de conduite de chute (50), de préférence, en ce qu'un diamètre intérieur de la conduite de chute (46) est plus grand, dans le sens de l'écoulement, après l'étranglement (42) qu'avant l'étranglement (42) dans le sens de l'écoulement.
  8. Lave-linge (2) selon l'une des revendications 1 à 7, caractérisé en ce que le lave-linge (2) est réalisé de telle sorte que le filtre (18) peut être retiré du lave-linge (2) sur place.
  9. Procédé permettant de faire fonctionner un lave-linge (2) selon l'une des revendications 1 à 8, selon lequel le procédé présente les étapes suivantes dans l'ordre indiqué :
    - démarrage automatique d'une purge de la cuve de lessivage (4),
    - réglage automatique de la soupape (30) de telle sorte que la sortie de pompe (12) est reliée à l'entrée de filtre (20) d'une manière conductrice d'écoulement au moyen de l'entrée de soupape (32) et de la première sortie de soupape (34),
    - après une période de temps prédéfinie, réglage automatique de la soupape (30) de telle sorte que la sortie de pompe (12) est reliée directement à la conduite d'évacuation (10) d'une manière conductrice d'écoulement au moyen de l'entrée de soupape (32) et de la seconde sortie de soupape (36),
    - fin automatique de la purge de la cuve de lessivage (4).
EP23192595.9A 2022-09-15 2023-08-22 Machine à laver et procédé de fonctionnement d'une machine à laver Active EP4339347B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE20225734A BE1030879B1 (de) 2022-09-15 2022-09-15 Filtervorrichtung für eine Waschmaschine, Waschmaschine und Verfahren zum Betrieb einer Waschmaschine

Publications (3)

Publication Number Publication Date
EP4339347A1 EP4339347A1 (fr) 2024-03-20
EP4339347B1 true EP4339347B1 (fr) 2025-12-10
EP4339347C0 EP4339347C0 (fr) 2025-12-10

Family

ID=85157141

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23192595.9A Active EP4339347B1 (fr) 2022-09-15 2023-08-22 Machine à laver et procédé de fonctionnement d'une machine à laver

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EP (1) EP4339347B1 (fr)
BE (1) BE1030879B1 (fr)
ES (1) ES3057821T3 (fr)
PL (1) PL4339347T3 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE542804C2 (en) * 2017-08-31 2020-07-14 Cleanguard Ab A method for removing microfibers in a washing liquid in a washing machine and a washing machine
FR3108921B1 (fr) * 2020-04-03 2022-03-04 Ifp Energies Now Systeme et procede regenerable de filtration de microfibres d'un liquide de vidange
TR202007084A2 (tr) * 2020-05-06 2021-11-22 Vestel Beyaz Esya San Ve Tic A S Mikrofiber filtre tertibatı içeren yıkayıcı cihaz.

Also Published As

Publication number Publication date
ES3057821T3 (en) 2026-03-04
EP4339347A1 (fr) 2024-03-20
EP4339347C0 (fr) 2025-12-10
BE1030879A1 (de) 2024-04-09
PL4339347T3 (pl) 2026-04-20
BE1030879B1 (de) 2024-04-15

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