EP0552843B1 - Washing and drying machine with an improved safety device against water pollution - Google Patents

Washing and drying machine with an improved safety device against water pollution Download PDF

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Publication number
EP0552843B1
EP0552843B1 EP93200131A EP93200131A EP0552843B1 EP 0552843 B1 EP0552843 B1 EP 0552843B1 EP 93200131 A EP93200131 A EP 93200131A EP 93200131 A EP93200131 A EP 93200131A EP 0552843 B1 EP0552843 B1 EP 0552843B1
Authority
EP
European Patent Office
Prior art keywords
washing
water
drying machine
container
steam
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.)
Expired - Lifetime
Application number
EP93200131A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0552843A1 (en
Inventor
Silvano Fumagalli
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.)
Candy SpA
Original Assignee
Candy SpA
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 Candy SpA filed Critical Candy SpA
Publication of EP0552843A1 publication Critical patent/EP0552843A1/en
Application granted granted Critical
Publication of EP0552843B1 publication Critical patent/EP0552843B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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 and drying machine with an improved safety device against water pollution.
  • a washing and drying machine is well-known to include the two functions of washing and drying of clothes.
  • air gap generally set at 20 mm or more.
  • US-A-2 887 862 discloses a washing and drying machine wherein the rinse agent is prevented from clogging up the openings in the system.
  • the object of the present invention is to accomplish a washing and drying machine endowed with an improved safety system against water pollution.
  • a washing and drying machine comprising a washing container, a rotating laundry drum rotatably housed in said container, a detergent holder with washing water flowing through it from a port for the supply of washing water provided with an air gap and endowed with an overflow outlet, a steam condenser communicating with the inside of said container to receive the steam emanated by the washed laundry contained in the drum and with a nozzle for spraying cold water for the condensation of said steam, an aspirator associated with said condenser for the aspiration of the condensed steam formed in said condenser and for its conveyance to a drying area for the formation of dry hot air and a recirculation conduit of dry hot air inside said container, characterized in that said spraying nozzle communicates with a space above the detergent holder that is located below a supply port of condensation water with a predetermined air gap with respect to it and has an overflow level that is higher than that of said overflow outlet.
  • FIG. 1 The loading of washing water inside the container 1 up to a level A takes place through an inlet syphon 4 (Fig. 1), that receives water mixed with detergent from a detergent distribution holder 5 above, that contains a removable drawer 21 with appropriate detergents 22 for washing, bleaching, softening and so on up to maximum level B (Fig.s 1 and 3), is provided with an overflow outlet 6 that conveys outside the casing 7 of the machine and receives cold washing water from a conveyor 23 located in front of a supply port 8 connected to a flexible hose 9 controlled by a usual inlet solenoid valve (not shown).
  • an empty space or "air gap” that extends vertically for a height of at least 20 mm above the maximum level B of the detergent load and has the task of preventing the return of water mixed with detergent, and thus polluted, into the water mains.
  • the machine For the drying part the machine comprises a steam condenser 10 ( Figures 1, 2 and 4) constituted by a wide vertical conduit that communicates at its lower end with the inside of the washing container 1 so as to receive the water vapour released by the washed laundry contained in the drum 2 and receives at a height that is selected in an appropriate manner in relation to the level A of the water in the container a cold-water spraying nozzle 11 destined to cause the condensation of the steam in the condenser 10.
  • a steam condenser 10 Figures 1, 2 and 4 constituted by a wide vertical conduit that communicates at its lower end with the inside of the washing container 1 so as to receive the water vapour released by the washed laundry contained in the drum 2 and receives at a height that is selected in an appropriate manner in relation to the level A of the water in the container a cold-water spraying nozzle 11 destined to cause the condensation of the steam in the condenser 10.
  • an aspirator 24 constituted by a fan 12 and by a motor 13, that has the task of aspirating the steam to be condensed from the container 1 and that condensed downstream from the nozzle 11 and to send it through a conveyor 26 to a drying area 14, where an electrical resistance 15 dries the condensed steam and correspondingly forms a flow of dry hot air that is lastly returned to the container 1 through a recirculation conduit 16.
  • the latter For the supply of cold water to the spraying nozzle 11 the latter is connected, through a flexible hose 17, to the bottom of an internal space 18 of the detergent holder 5 (Fig.s 1 and 3), whose top end communicates freely with the holder itself and is located at a height that is greater than that of the holder's overflow outlet 6 and also than the maximum level B of the detergents in the holder.
  • This top end is also at a predetermined vertical distance, defining an "air gap", from a cold-water supply port 19 above, connected to a flexible hose 20 controlled by a usual inlet solenoid valve (not shown).
  • the water accumulating in the abovementioned space also constitutes a column of water that ensures a constant water pressure at the spraying nozzle.
  • the safety device operates independently of the presence of electrical energy

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP93200131A 1992-01-24 1993-01-20 Washing and drying machine with an improved safety device against water pollution Expired - Lifetime EP0552843B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI920131A IT1260443B (it) 1992-01-24 1992-01-24 Macchina lavasciuga con perfezionato dispositivo di sicurezza contro l'inquinamento idrico
ITMI920131 1992-01-24

Publications (2)

Publication Number Publication Date
EP0552843A1 EP0552843A1 (en) 1993-07-28
EP0552843B1 true EP0552843B1 (en) 1996-04-03

Family

ID=11361660

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93200131A Expired - Lifetime EP0552843B1 (en) 1992-01-24 1993-01-20 Washing and drying machine with an improved safety device against water pollution

Country Status (3)

Country Link
EP (1) EP0552843B1 (it)
DE (1) DE69302026T2 (it)
IT (1) IT1260443B (it)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7908766B2 (en) 2004-12-06 2011-03-22 Lg Electronics Inc. Clothes dryer
US8826559B2 (en) 2004-12-06 2014-09-09 Lg Electronics Inc. Clothes dryer
US11186943B2 (en) 2017-10-09 2021-11-30 Whirlpool Corporation Filter configured for being used in a machine for drying laundry and machine for drying laundry equipped with such a filter

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3517618B2 (ja) * 1999-10-21 2004-04-12 株式会社東芝 ドラム式洗濯乾燥機
KR101041070B1 (ko) 2003-06-13 2011-06-13 삼성전자주식회사 드럼세탁기
KR100531328B1 (ko) * 2005-03-25 2005-11-29 엘지전자 주식회사 드럼세탁기의 제어방법
KR100774487B1 (ko) * 2006-10-31 2007-11-08 엘지전자 주식회사 의류 건조기
KR101387497B1 (ko) * 2007-08-03 2014-04-21 엘지전자 주식회사 의류처리장치
EP3109358B1 (en) 2009-06-29 2018-08-22 Electrolux Home Products Corporation N.V. Appliance for drying laundry
PL2957671T3 (pl) 2009-06-29 2019-03-29 Electrolux Home Products Corporation N.V. Urządzenie do suszenia materiałów pranych
EP2471994B1 (en) 2011-01-04 2019-06-26 Electrolux Home Products Corporation N.V. Appliance for drying laundry
EP2471998B1 (en) 2011-01-04 2019-04-10 Electrolux Home Products Corporation N.V. Appliance for drying laundry
CN102767064B (zh) * 2011-05-06 2016-06-01 海尔集团公司 滚筒式洗衣干衣机透气系统及滚筒式洗衣干衣机
EP2843119B1 (en) * 2013-08-30 2017-10-11 Electrolux Appliances Aktiebolag Laundry appliance having overheating preventing system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2813414A (en) * 1955-05-27 1957-11-19 Westinghouse Electric Corp Apparatus for washing and drying fabrics
US2887862A (en) * 1958-03-24 1959-05-26 Gen Electric Material dispensing system for combination clothes washing and drying machines
IT218183Z2 (it) * 1988-09-19 1992-04-08 Pordenone Macchina combinata per il lavaggio e l'asciugatura della biancheria.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7908766B2 (en) 2004-12-06 2011-03-22 Lg Electronics Inc. Clothes dryer
US8826559B2 (en) 2004-12-06 2014-09-09 Lg Electronics Inc. Clothes dryer
US8863400B2 (en) 2004-12-06 2014-10-21 Lg Electronics Inc. Clothes dryer
US11186943B2 (en) 2017-10-09 2021-11-30 Whirlpool Corporation Filter configured for being used in a machine for drying laundry and machine for drying laundry equipped with such a filter
US11761141B2 (en) 2017-10-09 2023-09-19 Whirlpool Corporation Filter configured for being used in a machine for drying laundry and machine for drying laundry equipped with such a filter

Also Published As

Publication number Publication date
IT1260443B (it) 1996-04-09
DE69302026D1 (de) 1996-05-09
EP0552843A1 (en) 1993-07-28
DE69302026T2 (de) 1996-10-24
ITMI920131A1 (it) 1993-07-25
ITMI920131A0 (it) 1992-01-24

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