EP3508643A1 - Procédé de traitement du linge dans un lave-linge à système de pompe de transvasement ainsi que lave-linge correspondant - Google Patents

Procédé de traitement du linge dans un lave-linge à système de pompe de transvasement ainsi que lave-linge correspondant Download PDF

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Publication number
EP3508643A1
EP3508643A1 EP19150137.8A EP19150137A EP3508643A1 EP 3508643 A1 EP3508643 A1 EP 3508643A1 EP 19150137 A EP19150137 A EP 19150137A EP 3508643 A1 EP3508643 A1 EP 3508643A1
Authority
EP
European Patent Office
Prior art keywords
laundry
aqueous liquid
drum
washing machine
tub
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP19150137.8A
Other languages
German (de)
English (en)
Inventor
Tyl BECKMANN
Wolfram SCHUBERT
Yi-chun SHI
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 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 Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP3508643A1 publication Critical patent/EP3508643A1/fr
Ceased legal-status Critical Current

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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
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005—Methods for washing, rinsing or spin-drying
    • 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 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/40—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of centrifugal separation of water from the laundry
    • 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 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/38—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of rinsing
    • 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
    • D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2101/02—Characteristics of laundry or load
    • D06F2101/04—Quantity, e.g. weight
    • 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
    • D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2101/14—Time settings
    • 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
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/04—Quantity, e.g. weight or variation of weight
    • 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
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/08—Humidity
    • 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
    • D06F2103/16—Washing liquid temperature
    • 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
    • D06F2103/18—Washing liquid level
    • 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
    • D06F2105/10—Temperature of washing liquids; Heating means therefor
    • 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
    • D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
    • D06F2105/48—Drum speed

Definitions

  • the invention relates to a method for treating laundry in a washing machine with a control device, a tub, a drum mounted in the tub rotatable about a rotation axis for receiving laundry items to be treated, and a lye pump having Umflut raised in a rinsing phase after a washing phase, and a especially suitable washing machine.
  • a washing program performed in a washing machine generally includes a wetting phase, a washing phase and a rinsing phase. After residues of wash liquor and impurities have been removed from the washed laundry in the rinse phase using clean water, the wet laundry is generally thrown to remove water in or on it, so that subsequent drying of the laundry, possibly in a tumble dryer, can be done faster and with less energy. This removal of water generally takes place at room temperature.
  • a drying program in which a drying program can be carried out following a washing program, the still wet laundry can be dried in the same drum while introducing warm air. This presupposes that a drying unit is present in the washer-dryer, which, depending on the design, ie, ie recirculation or exhaust air variant, includes a fan and a heater as well as possibly a condenser.
  • thermal spin It is known that the residual moisture when spinning can be improved if the water to be removed is warm. This procedure is referred to as thermal spin.
  • the publication DE 10 2014 105 026 A1 describes a method for operating a washing machine with a tub for holding washing liquid for treating laundry, a rotatably mounted in the tub drum for receiving the laundry, a radiator and a Umflut issued for conveying washing liquid from a lower portion of the tub in an upper region related to the operational set-up position of the washing machine, the method comprising performing a washing program comprising a heating step and a post-washing step, wherein a washing liquid level is formed in the tub during the heating step so that the heating body is below the washing liquid level and the drum is above the washing liquid level lies, based on the operational installation position of the washing machine, and steam is generated by means of operating the radiator.
  • the Umflut shark is activated during the Nachwaschöns depending on a selection temperature of the wash program.
  • the publication DE 198 28 002 C2 describes a method for rinsing laundry in a washing machine with connections for the supply of cold and warm water and with a program control for controlling the program sections washing and rinsing, wherein the program control is associated with at least one control element with which either a Warm Whyprogrammabites with a desired supply of warm water or a cold rinse program section with a supply of cold water during the program section rinsing is adjustable.
  • the Warmauerprogrammabêt is performed compared to the Kalt Jardinprogrammabêt with a reduced amount of flushing water and / or a reduced number of rinses.
  • the publication DE 35 23 824 A1 describes a washing machine with connections for the inflow of cold and warm raw water and with a program control device for controlling the processes “washing”, “rinsing” with several raw water rinses and “spin”, the program control before or during the last rinse the supply of warm raw water turns on. This is to be achieved by the energy advantage advantageous effect of exploiting already existing, warm raw water while exploiting the reduced viscosity of the last rinse in the laundry still existing water.
  • the object of the invention is to provide a washing machine of the type described above, which makes it possible to efficiently dehumidify damp laundry even without using a drying unit. It should preferably be possible to achieve very low Endrestfeuchten.
  • a washing machine which has a temperature sensor in the tub, preferably together with the heating device in a radiator pocket of the tub.
  • steps (a) to (d) are generally carried out after a final rinse of the rinsing phase.
  • step (a) it is advantageous if, on the one hand, the largest possible amount q W of aqueous liquid is pumped out of the tub, but, on the other hand, a sufficiently large proportion of aqueous liquid remains, after heating this portion of the aqueous liquid in step (c ) to achieve the most efficient heating of the laundry items in the drum.
  • the pump of the circulating device can be positioned so that it can also be used for pumping.
  • aqueous liquid means a substantially water-containing or liquid-containing liquid.
  • the aqueous liquid may in particular still contain small amounts of detergent or impurities.
  • the aqueous liquid in the tub is referred to as a so-called "free liquor".
  • step (a) the pumping is carried out until a predetermined water level h set is reached, which is not higher than it requires the complete covering of the heater.
  • the predetermined water level h set can be selected so that the heating device in the tub is not completely covered, so that when heated in step (b) to form vapor, which is brought into contact with the laundry items and so to their Can contribute to warming.
  • a spin-drying of the laundry items is carried out at a predetermined first speed U 1 .
  • the first speed U 1 preferably corresponds to at least one application speed of the items of laundry and the first speed U 1 is in the range of 75 to 600 revolutions / min.
  • Applying speed means the speed of the drum, in which the laundry located in it rests against the inner drum shell. The spin-on is particularly useful if the drum is a large batch of laundry with lots of laundry that bind large amounts of water.
  • the first rotational speed U 1 and a rotational time t 1 at the first rotational speed U 1 are selected as a function of the quantity and / or type of the laundry items. In any case, care is generally taken that the first rotational speed U 1 and the rotational speed t 1 at the first rotational speed U 1 do not lead to insufficient aqueous fluid being present for the intended heating of the laundry articles.
  • the entire free liquor or even only part of the free liquor can be pumped out.
  • the amount of liquid q W is determined as a function of a quantity of laundry a C and / or a type of laundry in the drum.
  • the amount of laundry can be determined for example by weighing the drum.
  • a hydrostatic pressure of the aqueous liquid is measured in the tub, which is a measure of the present as a "free liquor" in the tub aqueous liquid.
  • the amount of free liquor will be less with the same addition of water into the tub, possibly via a detergent containing Ein Togetherschale, when a relatively large amount of laundry absorbs a relatively large proportion of the aqueous liquid. Based on this relationship, the amount of laundry a C and / or the type of garments can be determined. This can optionally be supplemented by inputs of a user of the washing machine or by another determination of the type of washing, for example by means of IR spectroscopy.
  • a relationship between the amount of laundry a C and the amount of liquid q W is preferably stored in the control device of the washing machine.
  • the relationship is set such that with increasing amount of laundry a C and the amount of liquid q W increases.
  • the temperature T set is selected depending on the type of the laundry items.
  • a relationship between the type of laundry items and the temperature T set is generally stored in the control device.
  • the temperature T set is not restricted according to the invention, especially since, even in the case of a heater which does not completely submerge in an aqueous liquid, the aqueous liquid can be heated to the boiling point, so that water vapor is generated.
  • the temperature T set is in the range of 25 ° C to 95 ° C.
  • a method is preferred in which during step (c) and / or during step (d) the temperature T W of the water is measured with a temperature sensor and the heating device is controlled so that the temperature T W is within a predetermined temperature range.
  • the drum is rotated at a second speed U 2 , which corresponds to at least one application speed of the laundry items.
  • step (e) the drum is operated in step (e) with a third speed U 3 ⁇ 500 revolutions / min.
  • the step (e), which is also referred to as final spin, may also have a more complex speed profile.
  • the duration of the implementation of the method according to the invention generally depends on the humidity of the laundry to be dehumidified and the residual moisture to be achieved.
  • the duration can be set manually by a user of the washing machine or set automatically.
  • the method according to the invention can also be carried out several times. This can be particularly helpful when the amount of laundry a C is large and therefore the heating in step (c) is insufficient.
  • the method according to the invention can then advantageously be repeated several times in order to sufficiently heat the moist items of laundry and, in particular, to achieve a high mixing temperature in the so-called laundry core.
  • the circulating device has a pump, also referred to as a drain pump.
  • a pump also referred to as a drain pump.
  • This can be the pump, which is also used for pumping and thus disposal of wash liquor.
  • the operation of this pump would be suitably controlled, for example by means of a three-way valve, so that can be selected between pumping and pumping.
  • two pumps may be present, one of which is used only in the Umflut Road, while the other drain pump is used only for pumping.
  • the drum can be rotatably mounted about a substantially vertical axis or about a substantially horizontal axis. According to the invention, it is preferable for the drum to be rotatable about a substantially horizontal axis in the tub.
  • the washing machine can be a washing machine per se or a washer-dryer, ie a device which also has a drying device.
  • a temperature sensor is arranged in the tub.
  • the temperature sensor is then arranged in a lower region of the tub, preferably in one Radiator bag designated part of the tub container jacket, in which also the heater is placed in general. In this way, the temperature can be monitored particularly well in step (b)
  • the heater is in particular a resistance heater.
  • the flooding device provided according to the invention in the washing machine is designed so that it can bring an aqueous liquid present in the tub in contact with the laundry items in the drum.
  • the flooding device essentially serves to heat wet laundry after one or more rinse steps.
  • the circulating device is also advantageously used in a washing phase, in which then an aqueous liquid containing generally detergent is repeatedly brought into contact with laundry items to be cleaned.
  • the flooding device generally includes a pump for carrying the aqueous liquid.
  • a sump pump generally provided in a washing machine can be used as the pump.
  • the flooding device is therefore also referred to herein as Umumpumpsystem.
  • a washing machine used herein also generally comprises a liquor drainage system arranged at the bottom of the wash tub with the drain pump and generally also laundry entrainers and / or scooping devices.
  • the invention has the advantage that moist laundry in a washing machine, which does not have a drying unit, can be dehumidified to a lower residual moisture than previously known.
  • moist laundry in a washing machine which does not have a drying unit
  • wet items of laundry can be added separately for dehumidification or drying in the washing machine.
  • the invention allows a very well controlled dehumidification of laundry items.
  • the invention enables a good heat transfer through the heating device present in the aqueous liquid. Moreover, no compromise is required in terms of rinsing performance.
  • the amount of flushing water need not be in accordance with the method described herein, i. the thermal spin described herein. An improved separation of the laundry items after the final spin can be achieved.
  • the process according to the invention can also be carried out in a washer-dryer.
  • the method described herein can be implemented on all known device platforms as long as a pump-around system is present. An increased energy requirement for the additional heating step before the final spin can be compensated by a shorter duration of the final spin and a lower energy expenditure in the final spin.
  • the method according to the invention can be less stressful for the oscillating system of the washing machine, since a shorter total centrifugal profile can be sufficient to obtain a certain final moisture content.
  • FIG. 1 shows in particular a schematic representation of the invention essential parts of a suitable for carrying out the method according to the invention washing machine.
  • the schematically illustrated washing machine 1 includes a drum 2 rotatably mounted about a horizontal axis of rotation 18 with laundry items 8 in a tub 3.
  • the washing machine 1 further comprises a fresh water supply device, which consists of a controllable by the control device 4 valve 5 and a fresh water supply line 6.
  • the fresh water supply line 6 is on the metering device 7 for treatment agent, ie a dispenser 7, out, so that if necessary treatment agent from the Metering device 7 can be flushed by means of fresh water supply via the fresh water supply line 6 into the tub 3.
  • the drum 2 can be driven by the drive motor 11.
  • the drive motor 11 is in this non-limiting embodiment, a brushless and thus quiet operating drive motor 11th
  • the washing machine 1 further comprises a pumping system 9, 12, 14 comprising a pumping line 9, a lye container inlet 14 and a drain pump 12.
  • a aqueous liquid e.g. Water for rinsing in a rinsing phase or a wash liquor in the washing phase
  • the drain pump 12 is further connected to a sewer line 13 in the exemplary embodiment shown here.
  • a controllable by the controller 4, not shown here, valve, in particular three-way valve, allows in this embodiment switching the pumping operation of the pumping 9,12,14 on the sewer 13. In this way, if necessary, aqueous liquid pumped out of the tub 3 and be disposed of.
  • it can also be used two pumps, so that in each case a separate pump is used for pumping and for pumping.
  • Radiator pocket 20 is a heater 15, a pressure sensor 16 and a temperature sensor 17th
  • the pressure sensor 16 is a sensor for measuring the hydrostatic pressure in the tub 3.
  • the hydrostatic pressure p results from the filling level of the aqueous liquid present in the tub 3 and here in particular in the radiator pocket 20.
  • the pressure sensor 16 according to the invention can be used in particular for setting a predetermined water level h set . also it can also be used to determine the amount of laundry a C and / or a type of laundry items 8 in the drum 2 as described herein.
  • the amount of filled laundry can also be determined indirectly, for example via the determination of the liquid absorbed by the laundry items.
  • step (a) in particular only the radiator pocket 20 is filled with aqueous liquid.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
EP19150137.8A 2018-01-08 2019-01-03 Procédé de traitement du linge dans un lave-linge à système de pompe de transvasement ainsi que lave-linge correspondant Ceased EP3508643A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018200147.2A DE102018200147A1 (de) 2018-01-08 2018-01-08 Verfahren zur Behandlung von Wäsche in einer Waschmaschine mit Umpumpsystem sowie Waschmaschine hierfür

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Publication Number Publication Date
EP3508643A1 true EP3508643A1 (fr) 2019-07-10

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EP19150137.8A Ceased EP3508643A1 (fr) 2018-01-08 2019-01-03 Procédé de traitement du linge dans un lave-linge à système de pompe de transvasement ainsi que lave-linge correspondant

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EP (1) EP3508643A1 (fr)
DE (1) DE102018200147A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019117282A1 (de) * 2019-06-27 2020-12-31 Miele & Cie. Kg Verfahren zum Betreiben einer Waschmaschine und Waschmaschine
DE102021205430A1 (de) 2021-05-28 2022-12-01 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3523824A1 (de) 1985-07-03 1987-02-05 Bosch Siemens Hausgeraete Waschmaschine mit anschluessen fuer den zufluss von kaltem und warmem rohwasser
DE19828002C2 (de) 1998-06-24 2003-03-27 Miele & Cie Verfahren zum Spülen von Wäsche in einer Waschmaschine mit Anschlüssen für den Zulauf von kaltem und warmem Wasser
EP2128322A1 (fr) * 2008-05-30 2009-12-02 Samsung Electronics Co., Ltd. Machine à laver à tambour et procédé de nettoyage du tambour
EP2503048A1 (fr) * 2011-03-24 2012-09-26 Electrolux Home Products Corporation N.V. Procédé de lavage du linge dans une machine à laver le linge et machine à laver le linge
EP2602373A1 (fr) * 2011-12-05 2013-06-12 Electrolux Home Products Corporation N.V. Procédé de rinçage du linge dans une machine à laver et machine à laver permettant d'activer le procédé
DE102013210129A1 (de) * 2013-05-29 2014-12-04 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Betrieb einer Waschmaschine mit einer verbesserten Restfeuchte der Wäsche sowie hierzu geeignete Waschmaschine
DE102014105026A1 (de) 2014-04-09 2015-10-15 Miele & Cie. Kg Verfahren zum Betreiben einer Waschmaschine und Waschmaschine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014217121A1 (de) * 2014-08-28 2016-03-03 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Zuführeinrichtung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3523824A1 (de) 1985-07-03 1987-02-05 Bosch Siemens Hausgeraete Waschmaschine mit anschluessen fuer den zufluss von kaltem und warmem rohwasser
DE19828002C2 (de) 1998-06-24 2003-03-27 Miele & Cie Verfahren zum Spülen von Wäsche in einer Waschmaschine mit Anschlüssen für den Zulauf von kaltem und warmem Wasser
EP2128322A1 (fr) * 2008-05-30 2009-12-02 Samsung Electronics Co., Ltd. Machine à laver à tambour et procédé de nettoyage du tambour
EP2503048A1 (fr) * 2011-03-24 2012-09-26 Electrolux Home Products Corporation N.V. Procédé de lavage du linge dans une machine à laver le linge et machine à laver le linge
EP2602373A1 (fr) * 2011-12-05 2013-06-12 Electrolux Home Products Corporation N.V. Procédé de rinçage du linge dans une machine à laver et machine à laver permettant d'activer le procédé
DE102013210129A1 (de) * 2013-05-29 2014-12-04 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Betrieb einer Waschmaschine mit einer verbesserten Restfeuchte der Wäsche sowie hierzu geeignete Waschmaschine
DE102014105026A1 (de) 2014-04-09 2015-10-15 Miele & Cie. Kg Verfahren zum Betreiben einer Waschmaschine und Waschmaschine

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