EP3004448B1 - Verfahren zum betrieb einer waschmaschine mit einer verbesserten restfeuchte der wäsche sowie hierzu geeignete waschmaschine - Google Patents

Verfahren zum betrieb einer waschmaschine mit einer verbesserten restfeuchte der wäsche sowie hierzu geeignete waschmaschine Download PDF

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Publication number
EP3004448B1
EP3004448B1 EP14727436.9A EP14727436A EP3004448B1 EP 3004448 B1 EP3004448 B1 EP 3004448B1 EP 14727436 A EP14727436 A EP 14727436A EP 3004448 B1 EP3004448 B1 EP 3004448B1
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EP
European Patent Office
Prior art keywords
water
laundry
liquor container
pump
drum
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
EP14727436.9A
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German (de)
English (en)
French (fr)
Other versions
EP3004448A1 (de
Inventor
Rainer Jurmann
Dirk MISCHKE
Jörg SKRIPPEK
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
Priority to PL14727436T priority Critical patent/PL3004448T3/pl
Publication of EP3004448A1 publication Critical patent/EP3004448A1/de
Application granted granted Critical
Publication of EP3004448B1 publication Critical patent/EP3004448B1/de
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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
    • 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
    • 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
    • D06F2103/16—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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/28—Air properties
    • 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
    • D06F2105/02—Water supply
    • 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
    • D06F2105/06—Recirculation of washing liquids, e.g. by pumps or diverting valves
    • 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
    • D06F2105/08—Draining of washing liquids
    • 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
    • D06F2105/28—Electric heating
    • 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
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/04—Heating arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • D06F39/085—Arrangements or adaptations of pumps

Definitions

  • the invention relates to a method for operating a washing machine with an improved residual moisture and a particularly suitable for carrying out this method washing machine.
  • the publication EP 2 246 469 A1 shows a washing machine comprising a rotatable drum, a tub in which the drum is arranged, and a circulation pump for pumping water from a drain region of the tub via a circulation line back into the tub.
  • a washing program in a washing machine with a drum rotatably mounted in a tub generally has a rinsing phase with several spin stages after a wetting phase and a washing phase.
  • a last spin step as much water as possible should be removed from the wash, so that the washed laundry, which may have been treated with a fabric softener, must not be removed with dripping wet.
  • the residual moisture still present in the laundry after the spin phase which is frequently also referred to as "slip moisture content,” be as low as possible. This is generally achieved by a good separation of the water when spinning at a high speed of the drum.
  • the centrifugal force forces the water from the laundry through drainage holes of the drum to the outside into a space between the drum and the tub, where it ideally flows into a lower part of the tub, a region comprising a heater, also referred to as a "heater bag" , From the radiator pocket, this water can then be pumped out for disposal or reuse.
  • a heater also referred to as a "heater bag”
  • From the EP 2 390 397 A1 is a method for carrying out a washing cycle and a subsequent drying cycle in a washer-dryer with a heat pump in which at least one final rinse phase of the wash cycle is performed using heated water to increase the temperature within the tub.
  • This is to solve the problem of inefficient operation during the initial phase of a drying cycle, which arises because the heat pump system takes a certain time to reach a state of equilibrium. Due to the flushing with the heated water, the temperature inside the tub and drum is relatively high, so that the initial heat exchange increased at the evaporator of the heat pump. This should reduce the time to reach an advantageous state of equilibrium when operating the heat pump.
  • the heating of the water can be done by the usual in a washing machine heater or by an additional hot water supply or by a renewable energy source such as solar energy.
  • the temperature of the heated water can be between 40 and 80 ° C.
  • the EP 2 503 048 A1 describes a method for washing in a washing machine and a corresponding washing machine.
  • the method comprises between the rinsing phase and the spin phase a heating phase in which the laundry is heated.
  • a heating phase in which the laundry is heated.
  • the heating phase comprises a direct heating of the laundry, more preferably by heating with infrared radiation.
  • an object of the present invention to provide a process for rinsing laundry which is improved with regard to the consumption of water and / or energy and which enables a low residual moisture content of the washed and thrown laundry after a final spin phase.
  • the object of the invention was also to provide a particularly suitable for this purpose washing machine.
  • the pumping is performed in step (a) until a delivery rate of the pump has dropped to 10%, in particular 8% and particularly preferably 5% of its initial value p init .
  • the pumping in step (a) is carried out until the pump detects the beginning of the promotion of a gas / air mixture. In general, this is associated with a relatively large fluctuation of the delivery rate.
  • step (a1) when the pump is switched on, a slight spinning with the drum is carried out in a step (a1).
  • step (a1) the drum (2) is operated for a period of at most one minute with a number of revolutions ⁇ of at most 500 revolutions / min.
  • the predetermined temperature T set is generally in the range of 40 ° C to 95 ° C. Depending on the type and amount of laundry, the predetermined temperature T set can be suitably selected in this area.
  • a relationship between the predetermined amount of water q set and a loading amount w w is therefore stored in the control device of the washing machine used.
  • the amount of water q set is lower, the lower the amount of loading w w with laundry.
  • the loading amount w w can be determined automatically in a known manner or entered by a user of the washing machine. According to the invention, it is preferable if a loading quantity of the drum with laundry is determined on the basis of a profile of the pressure signal of a pressure sensor in a wetting phase. For this purpose, in the wetting phase during the rotation of the drum, water is advantageously added thereto and, at a given time t 1 in the method, the drum is turned and the water is introduced and a change in the pressure signal of the pressure sensor is evaluated to determine the loading quantity.
  • substantially rinse water already used is heated and used to heat the laundry.
  • the heating of the water can be done in different ways.
  • the heating in step (d) is carried out using a heater present in the tub for heating a wash liquor.
  • a minimum amount q req required for operation of the heater is generally set to water before step (d).
  • step (c) for the case that in step (b) is water collected quantity q col ⁇ q set, the tub filled with water from the water supply until the water quantity q in the tub q ⁇ q set applies .
  • the water supply includes in particular a water connection fitting for the domestic water network and an electrically controlled two-way valve.
  • the water supply is controlled so that for the amount of water q in the tub (1.1 xq set ) ⁇ q ⁇ q set applies.
  • the temperature T w of the water is measured during step (e) or during step (f) or between step (e) and step (f) in order to determine a sufficient heating of the laundry.
  • step (f) for example, in step (f) with the pump switched off, the drum is operated at the spin speed ⁇ 2 until a sufficient amount of water q check is present in the tub for measuring the temperature T w of the centrifuged water.
  • steps (b) to (f) are then carried out again.
  • the pump is first switched on in step (f) and then the drum is operated at a spin speed ⁇ 2 .
  • the inventive method is not only advantageous for achieving a low residual moisture with further reduced water and / or energy consumption.
  • it can also be used for disinfecting or destroying germs if laundry is being washed in the washing machine at a relatively low temperature of the washing liquor.
  • the steps (a) to (f) are subsequently carried out at a washing phase taking place at a temperature of at most 30 ° C.
  • step (d) the level is generally measured. If this does not reach a certain value, the condition q ⁇ q set is usually not fulfilled.
  • the level detection can be done for example by evaluating the hydrostatic pressure in the tub when a pressure sensor is arranged in this. Alternatively or in In addition to this, the electric power of the drive motor can be evaluated in terms of the level of the water, because the electrical power of the drive motor increases with increasing level in the tub.
  • the heated water from step (d) is applied to the laundry by means of a spraying device ("water spray device”) whose water outlet opening is directed onto an inner drum wall.
  • a spraying device water spray device
  • the water inlet into the drum via a spray device specially designed in the cuff of the washing machine is the water inlet into the drum via a spray device specially designed in the cuff of the washing machine.
  • the water outlet opening of the spraying device can be designed with multiple channels or a fluidically optimized nozzle can be used.
  • the warm water sprayed onto the laundry is preferably accelerated in the process according to the invention to the laundry ring applied to the drum inner wall and forced through the laundry by the centrifugal forces acting on the water.
  • the laundry can be warmed up particularly well with warm water, so that the retention force for the water in the laundry (also referred to herein as "water absorption capacity”) can be efficiently reduced.
  • step (e) comprises a reversing cycle in which the drum is rotated at a speed below 60 rpm ("revolutions per minute"), preferably below 50 rpm and more preferably below 40 rpm.
  • the washing machine has a spraying device with which the heated water from step (d) is applied to the laundry.
  • the invention has the advantage that the reduction of the residual moisture of laundry after a washing process and a subsequent spin in a washing machine can be achieved in an economical manner. In addition to a saving of water and a saving of energy is possible. In addition, the invention allows that at a Lower mechanical load, a lower residual moisture, ie Schleuderrestfeuchte can be achieved. Finally, the invention makes it possible to kill germs even when washing at low temperature via a so-called rinsing spinner block at elevated temperature. In such a case can also be spoken by a Hygiene Riverside Beneficial.
  • Fig. 1 is a schematic representation of a washing machine in which a method according to the invention can be carried out.
  • the washing machine in Fig. 1 has a tub 1, in which a drum 2 is rotatably mounted and can be operated by a drive motor 14.
  • the axis of rotation 3 of the drum 2 is directed from the horizontal by a small angle (for example, 13 °) forward and upwards, so that one has easier access and insight into the interior of the drum 2.
  • a small angle for example, 13 °
  • the scooping devices 5 of in Fig. 1 shown washing machine are designed so that they can optimally draw water at the right rotation of drum 2 shown here by the arrow 17.
  • the washing machine also has a liquor inlet system comprising a water connection fitting for the domestic water network 8, an electrically controllable two-way valve 9 and a supply line 10 to the tub 1, which may optionally also be guided via a Waschstoffein Kunststoff Anlagen Maschinene ("Ein Hamptonschale") 11, from which the feed water In a washing phase can carry detergent portions in the tub 1.
  • a heater 13 in the tub 1, a heater 13.
  • the two-way valve 9 as well as the heater 13 can be controlled by a control device 12 in response to a flowchart, the to a time program and / or the achievement of certain measurements of parameters such as liquor level, liquor temperature , Speed of the laundry drum, etc. may be bound within the washing machine.
  • control device 12 is set up to carry out a method according to the invention with the steps (a) to (f).
  • the controller may control the replenishment of the water until the condition q ⁇ q set is satisfied.
  • the control device 12 can suitably control, for example, the heater, the drive motor and the pump.
  • the loading amount with laundry can be taken into account, for example by resorting to a relationship between loading amount and water quantity stored in the control device 12 in relation to a total amount of water to be used in step (d).
  • the tub 1 is equipped with a water spray device 18, which is designed so that the water heated in step (d) can be sprayed with it on the laundry 7, which is located on an inner drum shell 19 of the drum 2.
  • the warm water exits from a water outlet opening 20.
  • the water spray device 18 can be supplied using an electrically controllable three-way valve 21, which can be switched so that a liquid present in the tub 1 can be conveyed either to the water spray device 18 or to a waste water outlet 22.
  • Fig. 1 15 means a pressure sensor for the measurement of the hydrostatic pressure p in the tub 1.
  • the hydrostatic pressure p results from the level of the water.
  • the signals from drive motor 14, pressure sensor 15 and a temperature sensor 23 are supplied to the control device 12. In particular, it can be determined with the temperature sensor 23 whether the heating of the laundry 7 is sufficient or steps (b) to (f) of the method according to the invention have to be carried out again.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP14727436.9A 2013-05-29 2014-05-19 Verfahren zum betrieb einer waschmaschine mit einer verbesserten restfeuchte der wäsche sowie hierzu geeignete waschmaschine Active EP3004448B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14727436T PL3004448T3 (pl) 2013-05-29 2014-05-19 Sposób działania pralki z ulepszoną wilgotnością resztkową prania jak również odpowiednia pralka

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013210129.5A DE102013210129A1 (de) 2013-05-29 2013-05-29 Verfahren zum Betrieb einer Waschmaschine mit einer verbesserten Restfeuchte der Wäsche sowie hierzu geeignete Waschmaschine
PCT/EP2014/060217 WO2014191248A1 (de) 2013-05-29 2014-05-19 Verfahren zum betrieb einer waschmaschine mit einer verbesserten restfeuchte der wäsche sowie hierzu geeignete waschmaschine

Publications (2)

Publication Number Publication Date
EP3004448A1 EP3004448A1 (de) 2016-04-13
EP3004448B1 true EP3004448B1 (de) 2017-07-12

Family

ID=50877242

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14727436.9A Active EP3004448B1 (de) 2013-05-29 2014-05-19 Verfahren zum betrieb einer waschmaschine mit einer verbesserten restfeuchte der wäsche sowie hierzu geeignete waschmaschine

Country Status (6)

Country Link
EP (1) EP3004448B1 (zh)
CN (1) CN105283597B (zh)
DE (1) DE102013210129A1 (zh)
PL (1) PL3004448T3 (zh)
RU (1) RU2634578C2 (zh)
WO (1) WO2014191248A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11028527B2 (en) 2019-09-27 2021-06-08 Whirlpool Corporation Laundry treating appliance for drying laundry

Families Citing this family (9)

* 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
CN105970541A (zh) * 2016-06-29 2016-09-28 无锡小天鹅股份有限公司 滚筒洗衣机的洗涤控制方法和滚筒洗衣机
JP2018007938A (ja) * 2016-07-15 2018-01-18 東芝ライフスタイル株式会社 洗濯乾燥機
CN108866959B (zh) * 2017-05-09 2021-07-20 无锡小天鹅电器有限公司 洗衣机及其的排水控制方法和装置
DE102018200147A1 (de) * 2018-01-08 2019-07-11 BSH Hausgeräte GmbH Verfahren zur Behandlung von Wäsche in einer Waschmaschine mit Umpumpsystem sowie Waschmaschine hierfür
DE102018214137A1 (de) * 2018-08-22 2020-02-27 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Einlassdüse
DE102018122461A1 (de) * 2018-09-14 2020-03-19 Miele & Cie. Kg Verfahren und Steuergerät zum Ansteuern eines Erwärmens eines Reinigungsguts während eines Reinigungsvorgangs in einem Reinigungsgerät und Reinigungsgerät
DE102019200368A1 (de) * 2019-01-15 2020-07-16 BSH Hausgeräte GmbH Verfahren zum schleudern von wäsche, steuervorrichtung für ein wäschebehandlungsgerät, wäschebehandlungsgerät und computerprogramm
EP3951042A4 (en) * 2019-03-27 2022-05-18 Wuxi Little Swan Electric Co., Ltd. LAUNDRY TREATMENT DEVICE, CONTROL METHOD, CONTROL SYSTEM AND READABLE STORAGE MEDIA

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DE4210577C2 (de) * 1992-03-31 1996-10-24 Aeg Hausgeraete Gmbh Verfahren zum Spülschleudern von Wäsche in einer programmgesteuerten Waschmaschine
AU2004202639B2 (en) * 2003-06-20 2011-01-27 Lg Electronics Inc. Washing method in washing machine including semi-drying cycle and control apparatus therefor
KR20060095385A (ko) * 2005-02-28 2006-08-31 엘지전자 주식회사 세탁기의 헹굼 행정 제어 방법
KR100933486B1 (ko) * 2007-09-05 2009-12-23 엘지전자 주식회사 세탁기의 타월코스 운전방법
PL2246469T3 (pl) * 2010-02-16 2012-12-31 V Zug Ag Sposób pracy pralki i pralka z pompą obiegową i fazą wirowania
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EP2503048B1 (en) 2011-03-24 2018-09-12 Electrolux Home Products Corporation N.V. Method for washing laundry in a laundry washing machine and laundry washing machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11028527B2 (en) 2019-09-27 2021-06-08 Whirlpool Corporation Laundry treating appliance for drying laundry
US11692300B2 (en) 2019-09-27 2023-07-04 Whirlpool Corporation Laundry treating appliance for drying laundry

Also Published As

Publication number Publication date
RU2015152585A (ru) 2017-07-04
PL3004448T3 (pl) 2017-12-29
WO2014191248A1 (de) 2014-12-04
CN105283597B (zh) 2017-07-11
CN105283597A (zh) 2016-01-27
DE102013210129A1 (de) 2014-12-04
RU2634578C2 (ru) 2017-10-31
EP3004448A1 (de) 2016-04-13

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