EP1174075B1 - Filter für eine Geschirrspülmaschine - Google Patents

Filter für eine Geschirrspülmaschine Download PDF

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Publication number
EP1174075B1
EP1174075B1 EP01202686A EP01202686A EP1174075B1 EP 1174075 B1 EP1174075 B1 EP 1174075B1 EP 01202686 A EP01202686 A EP 01202686A EP 01202686 A EP01202686 A EP 01202686A EP 1174075 B1 EP1174075 B1 EP 1174075B1
Authority
EP
European Patent Office
Prior art keywords
filter
water
dishwasher
filtering
washing water
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
EP01202686A
Other languages
English (en)
French (fr)
Other versions
EP1174075A2 (de
EP1174075A3 (de
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 EP1174075A2 publication Critical patent/EP1174075A2/de
Publication of EP1174075A3 publication Critical patent/EP1174075A3/de
Application granted granted Critical
Publication of EP1174075B1 publication Critical patent/EP1174075B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4202—Water filter means or strainers
    • A47L15/4208—Arrangements to prevent clogging of the filters, e.g. self-cleaning
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4202—Water filter means or strainers
    • A47L15/4206—Tubular filters

Definitions

  • the present invention refers to a filtering unit for dishwasher.
  • Such filtering unit for the washing water which is arranged on the bottom zone of the washing tank of the dishwasher.
  • Such filtering unit is usually made up of a tray for the collection of the washing water that is provided with a filter container and with a pierced bucket arranged inside the filter container.
  • the washing water flows at first through the bucket where it undergoes a rough filtering action and then through the filter container where it undergoes a finer filtering action by means of the small size holes of the filter container; finally the filtered washing water is collected by the tray.
  • a filtering unit of the type described can also be self-cleaning, that is provided also with means that provide to the cleaning of the filter container.
  • DE 3 507 229 discloses a dishwasher provided with a filtering unit as described in the preamble of claim 1.
  • scope of the present invention is to provide a filtering unit for dishwasher that solves. the aforementioned problem.
  • a second cylindrical filter 4 which is defined in claim 1 as third intermediate mesh filter, is arranged that is provided with passage areas for the flow of water smaller than those of the bucket 2 so as to carry out a second filtering operation of the washing water.
  • the filter 4 has a hole 5 on the bottom for the passage of water jets that are suitable to the cleaning of the filter 4.
  • a third filter made up of a filter container 6, which is defined in claim 1 as second narrow mesh filter, is arranged that is provided with passage areas for the flow of water even smaller than those of the second filter 4 so as to carry out a third filtering operation of the washing water.
  • the filter container 6 is arranged inside of a tray 7 that is suitable to collect the filtered washing water.
  • the filters 2, 4, 6 allow to carry out an operation of gradual filtering of the washing water, which goes from a rough type filtering operated by the bucket 2 to a finer filtering operated by the filter container 6.
  • Said device 8 for the cleaning of the filters 4 and 6, better visible in Figure 2, is placed.
  • Said device 8 comprises a round ring 9 provided with a multiplicity of nozzles 10 with a circumferential symmetry, and a central nozzle 11 connected with the ring 9 by means of an appendix 12.
  • On the bottom such device 8 is connected with a tube 13 where the clean water flows at a certain pressure such as to allow the outflow of the water jet of a certain size from the central nozzle 11 for cleaning the cylindrical filter 4 through the hole 5 and from the nozzles 10 for cleaning the filter container 6.
  • the hole 5 of the intermediate filter 4 has a diameter smaller than the internal diameter of the round ring 9 of the device 8; in that way during the cleaning of the filters the dirty water can fall directly on the bottom of the tray 7 in order to be then discharged to the outside by means of an appropriate discharge pump not visible in the Figures.
  • the appendix 12 comprises a watertight closed-loop duct for the flow of the clean water coming from the tube 13 toward the nozzles 10.

Landscapes

  • Washing And Drying Of Tableware (AREA)
  • Filtration Of Liquid (AREA)

Claims (3)

  1. Filtereinheit für Geschirrspülmaschinen, welche einen ersten, grobmaschigen Filter (2) aufweist, der am Boden eines Waschbehälters (3) der Geschirrspülmaschine derart angeordnet ist, daß er das in dem Behälter (3) enthaltene Waschwasser sammelt und filtert, ferner einen zweiten, engmaschigen Filter (6), welcher um den ersten Filter (2) angeordnet ist, um eine zusätzliche Filterung des Waschwasser vorzunehmen, sowie eine Schale (7) zum Sammeln des gefilterten Waschwassers zwischen dem ersten Filter (2) und dem zweiten Filter (6) aufweist, und ein dritter Filter (4) mit einer Zwischenmaschengröße angeordnet ist, um eine weitere Filterung des Waschwassers vorzunehmen, bevor dieses den zweiten Filter (6) erreicht, dadurch gekennzeichnet, daß sie eine Einrichtung (8) zum Reinigen des zweiten (6) und des dritten (4) Filters mit klarem Wasser aufweist, welche am Boden des zweiten Filters (6) angeordnet ist.
  2. Filtereinheit nach Anspruch 1, dadurch gekennzeichnet, daß die Vorrichtung (8) eine Mehrzahl von Umfangsdüsen (10) zur Ausgabe von Wasserstrahlen aufweist, welche den zweiten Filter (6) reinigen können, eine zentrale Düse (11) zur Ausgabe von Wasserstrahlen aufweist, die den dritten Filter (4) reinigen können.
  3. Filtereinheit nach Anspruch 2, dadurch gekennzeichnet, daß der dritte Filter (4) mit einer Öffnung (5) am Boden versehen ist, und daß die Umfangsdüsen (11) der Vorrichtung (8) auf einem runden Ring (9) angeordnet sind, welcher einen Innendurchmesser hat, welcher größer als der Durchmesser der Öffnung des dritten Filters (4) ist, so daß während der Reinigung desselben das schmutzige Wasser direkt auf den Boden der Schale (7) fällt.
EP01202686A 2000-07-18 2001-07-13 Filter für eine Geschirrspülmaschine Expired - Lifetime EP1174075B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI001623 2000-07-18
IT2000MI001623A IT1318186B1 (it) 2000-07-18 2000-07-18 Apparato di filtraggio per lavastoviglie

Publications (3)

Publication Number Publication Date
EP1174075A2 EP1174075A2 (de) 2002-01-23
EP1174075A3 EP1174075A3 (de) 2002-09-25
EP1174075B1 true EP1174075B1 (de) 2004-05-12

Family

ID=11445498

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01202686A Expired - Lifetime EP1174075B1 (de) 2000-07-18 2001-07-13 Filter für eine Geschirrspülmaschine

Country Status (4)

Country Link
EP (1) EP1174075B1 (de)
DE (1) DE60103214T2 (de)
ES (1) ES2215850T3 (de)
IT (1) IT1318186B1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050062145A (ko) * 2003-12-19 2005-06-23 엘지전자 주식회사 식기 세척기의 집수장치
DE102007060195A1 (de) * 2007-12-14 2009-06-18 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltsgerät
FR2935882B1 (fr) * 2008-09-16 2010-09-03 Fagorbrandt Sas Machine a laver la vaisselle comprenant un dispositif de filtration d'eau de nettoyage de la vaisselle.
PL2263512T5 (pl) * 2009-06-17 2019-05-31 Bonferraro Spa Przemysłowa zmywarka kapturowa z ulepszonym zespołem filtracyjnym
DE102014221611A1 (de) * 2014-10-24 2016-04-28 BSH Hausgeräte GmbH Wasserführendes Haushaltsgerät
CN105395147B (zh) * 2015-12-10 2018-03-13 佛山市顺德区美的洗涤电器制造有限公司 洗碗机水杯组件及洗碗机水杯组件的安装结构

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7146547U (de) * 1973-06-07 Miele & Cie Geschirrspulmaschine mit einem Grob filter und einem Feinfilter
DE1269776B (de) * 1960-01-16 1968-06-06 Boelkow Ludwig Filtereinrichtung an Geschirrspuelmaschinen
DE1206125B (de) * 1960-12-21 1965-12-02 Constructa Werke G M B H Wasserfuehrungseinrichtung an Geschirrspuelmaschinen
DE1428358A1 (de) * 1964-12-16 1968-11-14 Braun Ag Geschirrspuelmaschine mit im Kreislauf gefuehrtem Spuelwasser
DE2657354C2 (de) * 1976-12-17 1986-06-12 Württembergische Metallwarenfabrik, 7340 Geislingen Reinigungseinrichtung für einen Getränkezubereitungsbehälter
DE2832084A1 (de) * 1978-07-21 1980-01-31 Licentia Gmbh Geschirrspuelmaschine
DE3114663C2 (de) * 1981-04-10 1992-11-26 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Siebanordnung in der Ablaufwanne des Spülbehälters einer Geschirrspülmaschine
DE3507229A1 (de) * 1985-03-01 1986-09-04 Miele & Cie GmbH & Co, 4830 Gütersloh Einrichtung an geschirrspuelmaschinen zum filtern des umgewaelzten spuelwassers
DE3745169C2 (de) * 1986-11-13 1999-07-22 Candy Elettrodomestici Geschirrspülmaschine
IT218189Z2 (it) * 1988-11-23 1992-04-08 Zanussi A Spa Industrie Macchina lavastoviglie con filtro di ridircolo autopulente.
DE9116856U1 (de) * 1991-02-01 1994-06-30 Licentia Patent-Verwaltungs-Gmbh, 60596 Frankfurt Geschirrspülmaschine mit einer Siebanordnung
DE4103056A1 (de) * 1991-02-01 1992-08-13 Licentia Gmbh Geschirrspuelmaschine mit einer siebanordnung
DE4131914C2 (de) * 1991-09-25 1997-09-18 Aeg Hausgeraete Gmbh Siebkombination für Haushalt-Geschirrspülmaschinen
DE4200416A1 (de) * 1992-01-10 1993-07-15 Licentia Gmbh Siebkombination fuer haushalt-geschirrspuelmaschinen
DE4310403C2 (de) * 1993-03-31 1997-07-31 Aeg Hausgeraete Gmbh Geschirrspülmaschine mit einem Spülbehälter
DE4344245C2 (de) * 1993-12-23 1997-03-06 Bosch Siemens Hausgeraete Einrichtung an Geschirrspülmaschinen zum Filtern des Spülwassers
DE4418523A1 (de) * 1994-05-27 1995-11-30 Licentia Gmbh Haushalt-Geschirrspülmaschine mit schwimmergesteuerter Siebkombination
IT1289186B1 (it) * 1997-01-22 1998-09-29 Smeg Spa Dispositivo di filtrazione perfezionato per macchine lavastoviglie

Also Published As

Publication number Publication date
ITMI20001623A0 (it) 2000-07-18
DE60103214D1 (de) 2004-06-17
EP1174075A2 (de) 2002-01-23
DE60103214T2 (de) 2005-05-04
ITMI20001623A1 (it) 2002-01-18
IT1318186B1 (it) 2003-07-23
EP1174075A3 (de) 2002-09-25
ES2215850T3 (es) 2004-10-16

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