EP1775368B1 - Washtrockner oder Wäschetrockner mit einer Trockenluftregelungseinrichtung - Google Patents

Washtrockner oder Wäschetrockner mit einer Trockenluftregelungseinrichtung Download PDF

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Publication number
EP1775368B1
EP1775368B1 EP05111599A EP05111599A EP1775368B1 EP 1775368 B1 EP1775368 B1 EP 1775368B1 EP 05111599 A EP05111599 A EP 05111599A EP 05111599 A EP05111599 A EP 05111599A EP 1775368 B1 EP1775368 B1 EP 1775368B1
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Prior art keywords
drying
phase
motor
fan
washing
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EP05111599A
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English (en)
French (fr)
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EP1775368A1 (de
Inventor
Constantino Mariotti
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Whirlpool EMEA SpA
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Indesit Co SpA
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Priority to PL05111599T priority Critical patent/PL1775368T3/pl
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F58/38—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of drying, e.g. to achieve the target 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/50—Control of washer-dryers characterised by the purpose or target of the control
    • D06F33/52—Control of the operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/63—Control of the operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of air flow, e.g. blowing air during the washing process to prevent entanglement 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
    • D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2101/20—Operation modes, e.g. delicate laundry washing programs, service modes or refreshment cycles
    • 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
    • D06F2103/34—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
    • D06F2103/44—Current or voltage
    • 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
    • D06F2105/30—Blowers
    • 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
    • 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
    • D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 

Definitions

  • the present invention relates to a washing/drying machine or clothes drier according to the preamble of claim 1, as well as to a method for drying damp laundry according to the preamble of claim 9.
  • washing/drying machines and clothes driers wherein laundry is dried through the combined action of a rotating drum, which contains said laundry, and of a blower, which blows warm air toward the laundry.
  • the drum and the blower fan are both driven by one motor which, in order to reduce noise and improve efficiency, can be a three-phase motor.
  • the flow rate of the air flow generated by the fan depends on the rotation direction and speed of the drum.
  • the fan In order to improve the drying efficiency, in some clothes drier available on the market the fan is driven by a dedicated asynchronous single-phase motor with shorted coil or with start capacitor; the choice of an asynchronous single-phase motor is the only known fan drive solution which has been adopted so far, due to its low costs, in washing/drying machines or clothes driers.
  • the Patent US 4,549,362 describes an industrial clothes drier fitted with an air recirculating/mixing system; according to the invention, the machine comprises a control unit (11) which adjusts a valve system allowing to recirculate different percentages of warm air inside the drum.
  • valve systems are not very reliable and costly; secondly, these systems provide a constant flow of warm air, while the opening of the valves allows more air to enter from outside, thereby determining not only a reduction of moisture, but also a decrease in temperature.
  • the machine performs drying phases wherein the air flow and/or the heating element are stopped for a certain time.
  • This system suffers the drawback of a longer drying time.
  • US patent US6745495 discloses a dryer which includes a drum including a cavity configured to hold articles to be dried, a first motor drivingly coupled to the drum to rotate the drum, a heat source in flow communication with the cavity and a variable speed motor drivingly coupled to a blower positioned to deliver heated air from the heat source to the cavity.
  • the object of the present invention is therefore to solve the above-mentioned problems by providing a washing/drying machine or clothes drier allowing to optimize the drying cycle through a solution being reliable from both mechanical and control point of view.
  • Another object of the present invention is to provide a method for drying damp laundry, in particular laundry having previously been subjected to a washing and spinning process.
  • Fig. 1a illustrates a known washing/drying machine 1 which, in this explanatory and non-limiting example, is of the front-loading type; said machine has a front opening 2 used for placing laundry into a drum 3, the aperture of which can be closed by means of a door 4 incorporating with a glass 5.
  • Said washing/drying machine 1 has a control panel 6 comprising means 7 adapted to allow the user to select a wash and/or drying programme; in particular, such means can comprise one or more knobs 8, a number of push-buttons 9 and a display 10.
  • a control panel 6 comprising means 7 adapted to allow the user to select a wash and/or drying programme; in particular, such means can comprise one or more knobs 8, a number of push-buttons 9 and a display 10.
  • the user thus selects the wash and/or drying programmes that is considered to be the best for the laundry to be washed and/or dried; said drying programmes are preferably associated with a characteristic of the fabric of the damp laundry to be dried.
  • control unit 11 which manages and controls the operation of the machine.
  • control unit 11 comprises a microcontroller 12 being able to receive, through suitable interfaces and electric connections:
  • control unit is preferably provided in the form of an electronic board on which a plurality of electronic circuits 13 are mounted or integrated, which allow to process the data received or sent by the microcontroller 12.
  • the microcontroller 12 activates a main motor 17 which drives the drum 3, as well as a secondary motor 14 which drives a fan.
  • the drying cycle comprises a series of clockwise and anticlockwise rotations of the drum 3 at speeds being lower than the satellization speed, i.e. the speed at which the centrifugal force has such an intensity that the laundry can make a full turn of the drum 3 while adhering to the walls of the same.
  • the drying cycle also comprises phases wherein a blower 22, shown in Fig. 1c , blows warm air inside the drum 3.
  • the blower 22 essentially comprises a hollow body containing a heating element 23, typically a resistor, and a fan which, driven by a motor 14, generates a flow of air F arriving at the drum through a duct formed by the body of the blower 22.
  • Fig. 1b illustrates the tub 24 of the washing/drying machine 1 and the blower 22; in this embodiment, the rotation of the fan generates a flow of air which absorbs the thermal energy yielded by the heating element 23 and is then directed into the drum through a union 25 located between the blower and the gasket 15 surrounding the aperture 2 for loading the laundry.
  • a radiating element typically a resistor, which yields thermal energy to the flow of air blown by the fan into the drum.
  • Fig. 2 shows a Cartesian graph with the X axis indicating time and the Y axis indicating the percentage of residual moisture being present in the laundry to be dried.
  • the graph refers to a drying cycle performed with constant air flow rate and temperature; the graph is not in scale and therefore no values are indicated, which are however known to those skilled in the art.
  • T1 the time interval
  • the laundry to be dried is warmed up; during this phase, the residual moisture is almost constant or decreases slightly due to the air passing through the fabric and extracting water droplets from it.
  • the washing/drying machine or clothes drier comprises a control unit 11 adapted to control the on/off phases of a fan of a blower, as well as for adjusting the rotation speed of said fan; this allows to obtain different flow rates of air as necessary.
  • the washing/drying machine or clothes drier comprises a first motor 17, in particular a three-phase motor, for driving a drum 3, and a second motor 14, preferably an electronic commutation motor, for driving the fan;
  • the control unit 11, in addition to controlling the main motor 17, is also adapted to adjust the rotation speed of said second motor 14.
  • both motors need a rectifier (19,19'), i.e. a circuit receiving the mains alternating voltage 20 (typically 220-230 V at 50 Hz in Italy) and outputting a direct voltage, as well as an inverter (18,18'), i.e. a circuit receiving a direct voltage and outputting one or more alternating voltages.
  • a rectifier (19,19') i.e. a circuit receiving the mains alternating voltage 20 (typically 220-230 V at 50 Hz in Italy) and outputting a direct voltage
  • an inverter (18,18') i.e. a circuit receiving a direct voltage and outputting one or more alternating voltages.
  • the inverter 18 associated with the three-phase motor generates, on three output lines, three alternating voltages offset by 120 degrees, while the inverter 18' associated with the electronic commutation motor (which in the illustrated example is of the permanent magnet type) generates a square wave whose duty cycle is proportional to the rotation speed of the motor; the control of motors driven through electronic commutation is known and therefore will not be detailed any further, but it is clear that, depending on the type of motor chosen, the corresponding inverter will generate an appropriate number of voltages having suitable frequencies and shapes.
  • Each inverter (18,18') receives a direct voltage generated by a respective rectifier (19,19').
  • the control unit 11 of the washing/drying machine or clothes driers controls both inverters (18,18') by defining the frequency of the output voltages, and consequently the rotation speed of the motors; it should be noted that, in the examples of Figs. 3a and 3b , the operation of the motor 14 is of the brushless type.
  • the connection between the control unit 11 and the inverters (18,18') is preferably bidirectional, so that the control unit 11, besides transmitting commands to the inverters (18,18'), can also receive useful information from the inverters. Said information sent by the inverters (18,18') can refer to the torque required for keeping the drum in motion, to the current absorption of the motor, etc.
  • the washing/drying machine or clothes drier can be equipped, in a known manner, with sensors 21 whose readings provide information regarding the operating state of the machine; as an explanatory and non-limiting example, the washing/drying machine or clothes drier can be equipped with a tachometric sensor for measuring the rotation speed of the drum, a pressure switch for measuring the water level in the tub 24, or an air temperature sensor.
  • control unit 11 controls the operation of the machine by adjusting the rotation speed of the drum 3 and of the fan 16 or by signaling any operation errors through the display 10 being present on the control panel 6 or through a buzzer.
  • a particularly advantageous solution is the one shown in Fig. 3b , wherein the motor 17 driving the drum 3 and the motor 14 driving the fan 16 use a common rectifier circuit 19.
  • variable speed motors controlled by an electronic control unit which, according to the invention, coincides with the control unit 11 of said washing/drying machine or clothes drier.
  • the electronic commutation motor driving the blower fan can be a three-phase motor, a variable reluctance motor or a permanent magnet motor.
  • Washing/drying machines or clothes driers according to the invention allow to implement an optimum method for drying damp laundry.
  • Said method for drying damp laundry can be used in a washing/drying machine or clothes driers fitted with a control unit 11 adapted to control the on/off phases of a fan of a blower, and in which an air flow generated by said fan and warmed up through a heating element 23 is directed into a drum containing said laundry; according to the invention the method provides, the rotation speed of said fan 16 to be adjusted through said control unit 11.
  • the method according to the invention therefore comprises at least a first and a second drying phases, wherein the flow rate of said flow of air is different.
  • said first drying phase takes place at the beginning of said drying method and is characterized by a flow rate of air being higher than that of said second phase.
  • the method according to the present invention preferably comprises a phase in which the fan is driven at high speed, so that the air absorbs a large quantity of thermal energy from the heating element 23 and carries it into the drum.
  • This phase with the fan driven at high speed, allows to warm up the damp laundry rapidly.
  • the fan speed is then reduced.
  • the fan speed can then be gradually reduced, or the drying cycle can be subdivided into a plurality of time intervals wherein the fan speed is reduced.
  • the washing/drying machine or clothes drier comprises means 7 adapted to allow the user to select a drying program.
  • Such means comprise push-buttons 9, knobs 8 or menu items which can be displayed through the display 10 mounted on the machine control panel.
  • the selection of the drying programme takes place by choosing a characteristic of the fabric, e.g. the type of fabric or the degree of delicacy of the treated laundry.
  • the drying programme can comprise fan operating phases at different speeds, in particular a first phase at top speed and a last phase, which takes place during the final drying stage, wherein the flow of air generated by the fan is lowest.
  • said first drying phase is characterized by a flow rate of air being higher than that of said second phase, and by the fact that said first phase precedes said second phase.
  • Figs. 4a-4c show by means of Cartesian graphs the flow rate variation occurring during the drying process.
  • the air flow rate is rapidly increased up to a maximum value and then kept constant during a first drying phase having a duration t in being necessary for warming up the laundry.
  • the duration of said phase depends on the loaded laundry, e.g. weight, fabric, etc., as well as on the size of the heating element of the blower and on the flow rate of air.
  • the flow rate of air is decreased either gradually ( Fig. 4a ) or in successive phases during which the flow rate is kept at a constant value for time intervals having a duration t 2 - t n ( Figs. 4b and 4c ).
  • the flow rate of air is reduced at each successive drying phase, whereas in the method embodiment of Fig. 4c there are a first phase and a second phase being repeated in succession; at each repetition, said flow rate of air is reduced during said first phase.
  • the value of the flow rate of air during said second phase can be equal to or other than zero; Fig. 4c shows the case in which it is other than zero.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Drying Of Solid Materials (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Treatment Of Sludge (AREA)

Claims (13)

  1. Waschtrockner oder Wäschetrockner umfassend:
    - eine Steuereinheit (11) geeignet zum Steuern der An-/Aus-Phasen eines Lüfterrades (16) eines Gebläses (22),
    - einen ersten Motor (17) zum Antreiben einer Trommel (3) und
    - einen zweiten Motor (14) zum Antreiben des Lüfterrades,
    wobei der zweite Motor (14) ein elektronischer Kommutierungsmotor ist, insbesondere nach Art einer Permanentmagneten-Ausführung, und wobei die Steuereinheit (11) zum Anpassen der Drehzahl des zweiten Motors (14) vorbereitet ist, um die Drehzahl des Lüfterrades einzustellen,
    dadurch gekennzeichnet, dass der erste Motor (17) vom Typ eines dreiphasigen Asynchronmotors ist und der erste und der zweite Motor eine gemeinsame Gleichrichterschaltung (19) verwenden.
  2. Waschtrockner oder Wäschetrockner nach einem der vorstehenden Ansprüche gekennzeichnet durch Mittel (7), die dazu geeignet sind, dem Benutzer das Auswählen wenigstens eines Programms zum Trocknen feuchter Wäsche zu ermöglichen.
  3. Waschtrockner oder Wäschetrockner nach Anspruch 2, dadurch gekennzeichnet, dass das wenigstens eine Programm mit den Eigenschaften des Stoffes der Wäsche in Zusammenhang steht.
  4. Waschtrockner oder Wäschetrockner nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass das Trockenprogramm Lüfterrad-Betriebsphasen mit unterschiedlichen Drehzahlen umfasst.
  5. Waschtrockner oder Wäschetrockner nach Anspruch 2, wobei das Trockenprogramm wenigstens eine erste und eine zweite Trocknungsphase umfasst, wobei die erste Trocknungsphase gekennzeichnet ist durch einen höheren Luftdurchsatz als der in der zweite Phase und dadurch, dass die erste Phase der zweiten Phase vorangeht.
  6. Waschtrockner oder Wäschetrockner nach Anspruch 5, wobei die erste Trocknungsphase am Anfang des Trocknungsverfahrens stattfindet.
  7. Verfahren zum Trocknen feuchter Wäsche in einem Waschtrockner oder Wäschetrockner, der ausgestattet ist mit einem ersten Motor (17) zum Betreiben einer die Wäsche enthaltenden Trommel (3),
    - einem zweiten Motor (14) zum Betreiben eines Lüfterrades eines Gebläses, wobei der zweite Motor (14) ein elektronischer Kommutierungsmotor ist, insbesondere nach Art einer Permanentmagneten-Ausführung, und
    - einer Steuereinheit (11), geeignet zum Steuern der An-/Aus-Phasen des Lüfterrades und zum Anpassen der Drehzahl des Lüfterrades,
    wobei ein durch das Lüfterrad erzeugter und durch ein Heizelement (23) erwärmter Luftstrom in die Trommel (3) geleitet wird,
    dadurch gekennzeichnet, dass der erste Motor (17) vom Typ eines dreiphasigen Asynchronmotors ist, und der erste und der zweite Motor eine gemeinsame Gleichrichterschaltung (19) verwenden.
  8. Verfahren nach Anspruch 7, dadurch gekennzeichnet, dass das Verfahren wenigstens eine erste und eine zweite Trocknungsphase aufweist, wobei der Durchsatz des Luftstroms verschieden ist.
  9. Verfahren nach Anspruch 8, dadurch gekennzeichnet, dass die erste Trocknungsphase durch einen höheren Luftdurchsatz als der in der zweiten Phase gekennzeichnet ist und dadurch, dass die erste Phase der zweiten Phase vorangeht.
  10. Verfahren nach Anspruch 9, dadurch gekennzeichnet, dass die erste Trocknungsphase am Anfang des Trocknungsverfahrens stattfindet.
  11. Verfahren nach Anspruch 9, dadurch gekennzeichnet, dass die erste und die zweite Phase nacheinander wiederholt werden und dass, bei jeder Wiederholung, der Durchsatz des Luftstroms während der ersten Phase reduziert wird.
  12. Verfahren nach einem der Ansprüche 7 bis 10, dadurch gekennzeichnet, dass der Luftdurchsatz während der letzten Trocknungsphase am geringsten ist.
  13. Verfahren nach einem der Ansprüche 7 bis 12, dadurch gekennzeichnet, dass es ein Einstellen der thermischen Energie schafft, die durch das Heizelement (23) abgegeben wird.
EP05111599A 2004-12-01 2005-12-01 Washtrockner oder Wäschetrockner mit einer Trockenluftregelungseinrichtung Active EP1775368B1 (de)

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PL05111599T PL1775368T3 (pl) 2004-12-01 2005-12-01 Pralko-suszarka lub suszarka do ubrań z układem regulacji powietrza suszącego

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000845A ITTO20040845A1 (it) 2004-12-01 2004-12-01 Macchina lavasciuga o asciugatrice con sistema di regolazione dell'aria di asciugatura

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Publication Number Publication Date
EP1775368A1 EP1775368A1 (de) 2007-04-18
EP1775368B1 true EP1775368B1 (de) 2011-02-23

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EP (1) EP1775368B1 (de)
AT (1) ATE499479T1 (de)
DE (1) DE602005026530D1 (de)
IT (1) ITTO20040845A1 (de)
PL (1) PL1775368T3 (de)

Cited By (4)

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WO2013167486A2 (de) 2012-05-09 2013-11-14 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum betrieb eines trockners mit variabler motordrehzahl während einer aufheizphase sowie hierfür geeigneter trockner
DE102012207742A1 (de) 2012-05-09 2013-11-14 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Betrieb eines Trockners mit variabler Drehzahl eines Antriebsmotors sowie hierfür geeigneter Trockner
US10801157B2 (en) 2014-12-30 2020-10-13 Whirlpool Emea S.P.A. Washing/drying machine with a device for cleaning an air filter
US10982379B2 (en) 2014-11-30 2021-04-20 Whirlpool Emea S.P.A. Washing/drying machine with a device for cleaning an air filter

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DE102009026649A1 (de) * 2009-06-02 2010-12-09 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Steuern eines Trocknungsprozesses und Hausgerät zum Trocknen eines feuchten Gutes
CH701466B1 (de) * 2010-11-12 2014-04-30 V Zug Ag Wäschetrockner mit variablem Trockenluft-Volumenstrom und Verfahren zu dessen Betrieb.
EP3022353B1 (de) 2013-07-19 2018-01-31 Whirlpool Corporation Luftstrom-druckausgleichssystem für wäschetrockner
ITTO20131099A1 (it) 2013-12-31 2015-07-01 Indesit Co Spa Macchina lavasciugatrice con sistema di prevenzione dell¿intasamento di un filtro dell¿aria
ITTO20131101A1 (it) 2013-12-31 2015-07-01 Indesit Co Spa Macchina lavasciugatrice con dispositivo di pulizia di un filtro dell'aria di asciugatura
EP2918722B1 (de) 2014-03-14 2021-01-20 Whirlpool Corporation Verfahren zum Behandeln von Wäsche in einem Trockner
EP3132081B1 (de) 2014-04-17 2019-03-13 Whirlpool EMEA S.p.A Wasch- / trocknen-maschine mit mitteln zum reinigen eines luftfilters
EP2960364B1 (de) * 2014-06-27 2018-02-07 Electrolux Appliances Aktiebolag Wäschetrocknungsvorrichtung und Verfahren zur Steuerung eines Trocknungszyklus in einer Wäschetrocknungsvorrichtung
DE102015203663A1 (de) * 2015-03-02 2016-09-08 BSH Hausgeräte GmbH Verfahren zum Betrieb eines Trockners mit einer Wärmepumpe und hierzu geeigneter Trockner
DE102015205483A1 (de) * 2015-03-26 2016-11-03 BSH Hausgeräte GmbH Verfahren zur Durchführung eines Hygieneprogrammes in einem Trockner mit einer Wärmepumpe und hierzu geeigneter Trockner
CN111733575A (zh) * 2019-03-05 2020-10-02 青岛海尔滚筒洗衣机有限公司 一种干衣装置的控制方法及干衣装置

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AU2003298499A1 (en) * 2002-12-31 2004-07-22 Arcelik A.S. Washer/dryer
US6745495B1 (en) * 2003-06-27 2004-06-08 General Electric Company Clothes dryer apparatus and method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013167486A2 (de) 2012-05-09 2013-11-14 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum betrieb eines trockners mit variabler motordrehzahl während einer aufheizphase sowie hierfür geeigneter trockner
DE102012207742A1 (de) 2012-05-09 2013-11-14 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Betrieb eines Trockners mit variabler Drehzahl eines Antriebsmotors sowie hierfür geeigneter Trockner
DE102012207741A1 (de) 2012-05-09 2013-11-14 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Betrieb eines Trockners mit variabler Motordrehzahl während einer Aufheizphase sowie hierfür geeigneter Trockner
WO2013167488A2 (de) 2012-05-09 2013-11-14 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum betrieb eines trockners mit variabler drehzahl eines antriebsmotors sowie hierfür geeigneter trockner
US10982379B2 (en) 2014-11-30 2021-04-20 Whirlpool Emea S.P.A. Washing/drying machine with a device for cleaning an air filter
US10801157B2 (en) 2014-12-30 2020-10-13 Whirlpool Emea S.P.A. Washing/drying machine with a device for cleaning an air filter

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DE602005026530D1 (de) 2011-04-07
PL1775368T3 (pl) 2011-07-29
ATE499479T1 (de) 2011-03-15
ITTO20040845A1 (it) 2005-03-01
EP1775368A1 (de) 2007-04-18

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