EP0172203A1 - Procede et installation pour laver du linge dans une machine a laver a tambour - Google Patents

Procede et installation pour laver du linge dans une machine a laver a tambour

Info

Publication number
EP0172203A1
EP0172203A1 EP85900981A EP85900981A EP0172203A1 EP 0172203 A1 EP0172203 A1 EP 0172203A1 EP 85900981 A EP85900981 A EP 85900981A EP 85900981 A EP85900981 A EP 85900981A EP 0172203 A1 EP0172203 A1 EP 0172203A1
Authority
EP
European Patent Office
Prior art keywords
washing
laundry
drum
water
nozzle
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.)
Withdrawn
Application number
EP85900981A
Other languages
German (de)
English (en)
Inventor
Peter Zinkann
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
HEEBOII John
Original Assignee
Miele und Cie KG
HEEBOII John
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
Priority claimed from DK79984A external-priority patent/DK79984A/da
Priority claimed from DE19853501760 external-priority patent/DE3501760A1/de
Application filed by Miele und Cie KG, HEEBOII John filed Critical Miele und Cie KG
Publication of EP0172203A1 publication Critical patent/EP0172203A1/fr
Withdrawn legal-status Critical Current

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 
    • D06F39/04—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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • 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

Definitions

  • the invention relates to a method for washing laundry with one or more washing courses, in particular for a drum washing machine, in which water and detergent are fed to the tub, the washing liquor is heated and the laundry is moved by rotating the drum, and with a recirculation pump which pumps the liquid collecting in the base of the tub through a nozzle directed into the tub onto the laundry and a device for carrying out the method.
  • Washing machines are predominantly used in the European area, in which so much water is used that during washing the drum with the laundry is immersed in the water bath. At the same time as the chemical action on the dirt, mechanical processing of the laundry ensures that the dirt is removed from the laundry and - when the washing process has ended - is pumped out with the washing water. With the intention of achieving energy savings, the space between the drum and the washing vessel was limited so that the amount of water required for mechanical processing was reduced. However, these machines have the weakness that the air admixture in the wash water is increased. Since the detergent concentration is also increased by normal laundry detergent dosage according to the weight of the laundry because of the lower water density, the tendency towards foam formation in the washing water is simultaneously increased. This will make the mechanical.
  • a further disadvantage is that the water which is separated out during the spinning is entrained by the drum during its rotation, with the result that the removal of the water from the washing vessel is made more difficult.
  • the disadvantage of the method described in DE-OS 33 08 611 is, in particular, the drum construction which is complex for the effective implementation.
  • the method proposed in EP-PS 43 122 contains some procedural steps that can hardly be carried out in a wide range of applications, for example for domestic washing machines.
  • the invention has for its object to avoid the disadvantages described above, to provide a method and a device for washing laundry, the use of water and energy can be drastically reduced and which can be realized in a conventional household washing machine in a relatively simple form can.
  • the washing machine shown in FIG. 1 has a solenoid valve 1, from which water flows into the suds container 3 via the detergent chamber 2.
  • the water is collected at the bottom 4 of the tub 3 and then runs to the recirculation pump 5 and on through the continuous flow heater 6 and the recirculation line 7 to the nozzle 8, of which it is distributed over the laundry 9.
  • the water level in front of the recirculation pump 5 is registered by a sensor 10 which switches the solenoid valve 1 on and off.
  • the function in this arrangement is as follows: The chemically active phase of the washing process is initiated by activating the recirculation pump 5. At the same time, water is passed through the solenoid valve 1 and the detergent chamber into the tub 3. This water will vent the recirculation pump 5, which directs the water up to a nozzle 8, which is located at the top in the opening to the washing drum 11, and which distributes the water over the laundry 9. At the beginning, the laundry will bind the water capillary, but due to the constant supply of water, the laundry will gradually seep through. This leakage runs at a speed which is dependent on the performance of the recirculation pump 5.
  • a pressure sensor 10 which switches off the solenoid valve 1 and thus also the inflowing water. If the seepage of the wash water through the wash 9 then the performance of the recirculation tion pump 5 corresponds, the system is in equilibrium. If this is not the case, the congestion in front of the recirculation pump will disappear, and the sensor 10 will activate the solenoid valve 1 again, as a result of which water is supplied to the system again. Through this process, which may include a few openings and closings of the solenoid valve 1, the system will be in equilibrium with a supplied amount of water, which results in a rate of seepage of the water through the laundry, which depends exactly on the performance of the recirculation pump 5 ⁇ is true.
  • the amount of water required for such a recirculation depends on the amount of laundry, because both the capillary binding capacity and the seepage resistance decrease with a reduced amount of laundry. Since both properties result in an equilibrium between seepage and recirculation speed being established more quickly, it will also be established with less water supply. It is thereby achieved that the amount of water supplied is automatically reduced if the washing machine contains less laundry.
  • the heat required for the process is supplied by pumping the water through a continuous-flow heater 6 with the aid of the recirculation pump 5 before it is led to the nozzle 8 and then distributed over the laundry 9.
  • the drum washing machine 12 shown in FIG. 2 has the usual arrangement of tub 13 with the drum 14 stored therein.
  • a pump device 15 is arranged in the drain system, through which the water can be conveyed out of the machine in a conventional manner via a drain hose 17.
  • a corresponding reversing device it is equally possible to circulate the liquid accumulating in the outlet via a continuous-flow heater 16 and a nozzle 18 directed into the interior of the drum.
  • separate pumps can also be provided in each case.
  • Corresponding connection devices for temperature, water level and alkali concentration sensors 20, 21, 22 are arranged in an outlet part 19.
  • the nozzle 18 is accommodated in the area of the loading opening 12 of the machine.
  • the function with this arrangement is as follows:
  • the detergent is passed in liquid or powder form through the detergent chamber 24 into the tub 13.
  • the incoming amount is limited to a low level 25, so that the laundry in the drum 14 is not immersed in the free liquor.
  • the highly concentrated detergent solution then located in the lye container 13 is sprayed into the drum interior via the pump device 15, the continuous-flow heater 16 and the nozzle 18.
  • the drum 14 is operated at least at the abutment speed (80 rpm) at which a washing ring is formed on the drum shell.
  • a drum speed depending on the dependency of the type of laundry, is in the range between 150-400 rpm. selected. Detergents or water are requested, as is necessary in the area of the low level 25 for pumping the detergent solution in a functionally correct manner.
  • a water level sensor 21 monitors the water level.
  • the detergent solution is brought to the necessary program temperature in the continuous-flow heater 16.
  • the lay-on speed is interrupted several times by switching to a reversing wash cycle.
  • a lye concentration sensor 22 allows the rinsing process to continue until the lye concentration has dropped below a certain value.
  • An advantageous arrangement of the instantaneous water heater 16 is that it is arranged below the tub 2 with an inclined incline upwards, its upper edge running approximately in the line of the low level 25.
  • a drain part 19 is provided in the drain system of the machine, to which the condition sensors 20, 21, 22 can be connected.
  • a known self-cleaning filter device in the U pump system prevents the nozzle 18 from becoming clogged with lint or the like.

Landscapes

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

Abstract

Procédé de lavage pour une machine à laver à tambour. Dans une première phase de lavage, la lessive est pulvérisée sur le linge avec une pompe de recirculation (5, 15) par un chauffe-eau instantané (6, 16) et une buse (8, 18) à l'intérieur du tambour. Dans une seconde phase de lavage, le niveau d'eau monte dans le récipient de lessive et un lavage supplémentaire est effectué pendant un certain temps de la manière habituelle.
EP85900981A 1984-02-21 1985-02-19 Procede et installation pour laver du linge dans une machine a laver a tambour Withdrawn EP0172203A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DK79984A DK79984A (da) 1984-02-21 1984-02-21 Fremgangsmaade til energi- og vaskemiddelbesparende vaskeproces
DK799/84 1984-02-21
DE3501760 1985-01-21
DE19853501760 DE3501760A1 (de) 1985-01-21 1985-01-21 Verfahren und vorrichtung zum waschen von waesche in einer trommelwaschmaschine

Publications (1)

Publication Number Publication Date
EP0172203A1 true EP0172203A1 (fr) 1986-02-26

Family

ID=25828685

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85900981A Withdrawn EP0172203A1 (fr) 1984-02-21 1985-02-19 Procede et installation pour laver du linge dans une machine a laver a tambour

Country Status (2)

Country Link
EP (1) EP0172203A1 (fr)
WO (1) WO1985003729A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1192072B (it) * 1986-03-26 1988-03-31 Zanussi Elettrodomestici Macchina lavabiancheria con dispositivo di riscaldamento della liscivia
DD281721A7 (de) * 1987-10-26 1990-08-22 Schwarzenberg Waschgeraete Einrichtung zum erwaermen und speichern von flotten
US5191668A (en) * 1992-01-02 1993-03-09 Whirlpool Corporation Spin method of rinsing fabric in a horizontal axis washer
US5191669A (en) * 1992-01-02 1993-03-09 Whirlpool Corporation Spin method of washing fabric in a horizontal axis washer
US5219370A (en) * 1992-01-02 1993-06-15 Whirlpool Corporation Tumbling method of washing fabric in a horizontal axis washer
IT1263893B (it) * 1993-02-11 1996-09-05 Macchina lavabiancheria perfezionata
ATE251248T1 (de) * 1993-06-07 2003-10-15 Bsh Bosch Siemens Hausgeraete Automatisch gesteuerte waschmaschine
DE4332225B4 (de) * 1993-06-07 2006-09-28 BSH Bosch und Siemens Hausgeräte GmbH Automatisch gesteuerte Waschmaschine
AU2007338916B2 (en) * 2006-12-22 2012-12-06 Aktiebolaget Electrolux Improved water saving washing machine
KR101085904B1 (ko) 2007-02-26 2011-11-23 삼성전자주식회사 세탁기 및 그 세탁제어방법
BRPI0817412A2 (pt) * 2007-11-12 2015-06-16 Tulga Simsek Máquina de lavagem e extração.

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2023013A (en) * 1931-04-28 1935-12-03 Faber Engineering Company Method of and apparatus for treating textile and other materials
US2432766A (en) * 1942-04-23 1947-12-16 Apex Electrical Mfg Co Apparatus for washing clothes
GB775246A (en) * 1954-08-03 1957-05-22 Westinghouse Electric Int Co Improvements in or relating to the washing of fabrics or the like
US2914935A (en) * 1957-08-16 1959-12-01 Westinghouse Electric Corp Laundry apparatus
DE1410985A1 (de) * 1961-06-21 1968-11-21 Heinz Herbertz Doppeltrommel-Waschmaschine
US3197980A (en) * 1963-09-06 1965-08-03 Whirlpool Co Automatic laundry apparatus having a super wash cycle
US3387310A (en) * 1966-09-22 1968-06-11 Donald E. Marshall Washing apparatus and method
US3388410A (en) * 1967-09-11 1968-06-18 Donald E. Marshall Cleaning apparatus and method
DE7025698U (de) * 1970-07-02 1971-12-09 Siemens Elektrogeraete Gmbh Wasch- oder geschirrspuellmaschine mit einem die waschfluessigkeit aufnehmenden laugenbehaelter.
FR2525645A1 (fr) * 1982-04-23 1983-10-28 Thomson Brandt Lave-linge a faible consommation en eau

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8503729A1 *

Also Published As

Publication number Publication date
WO1985003729A1 (fr) 1985-08-29

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT DE FR GB NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19860122

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ZINKANN, PETER