EP0988825A2 - Filtre à tamis pour machine assurant le deplacement de liquide - Google Patents

Filtre à tamis pour machine assurant le deplacement de liquide Download PDF

Info

Publication number: EP0988825A2
Authority: EP; European Patent Office
Prior art keywords: screen; sieve; filter; filter screen; liquid
Prior art date: 1998-09-10
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.): Granted

Application number

EP99113956A

Other languages

German (de)

English (en)

Other versions

EP0988825A3 (fr

EP0988825B1 (fr

Inventor

Karlheinz Kohles

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.)

AEG Hausgeraete GmbH

Original Assignee

AEG 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.)

1998-09-10

Filing date

1999-07-17

Publication date

2000-03-29

1999-07-17 Application filed by AEG Hausgeraete GmbH filed Critical AEG Hausgeraete GmbH

2000-03-29 Publication of EP0988825A2 publication Critical patent/EP0988825A2/fr

2000-05-10 Publication of EP0988825A3 publication Critical patent/EP0988825A3/fr

2003-04-16 Application granted granted Critical

2003-04-16 Publication of EP0988825B1 publication Critical patent/EP0988825B1/fr

2019-07-17 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

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
- A47L15/4204—Flat filters

Definitions

the invention relates to a filter screen for a liquid-carrying Household appliance according to the preamble of the claim 1.
a working fluid With liquid-carrying household appliances, it is common a working fluid with the help of a filter screen clean.
a household dishwasher for example known (DE-OS 44 00 877), a sieve combination for cleaning a circulated rinsing liquid to use.
the sieve combination essentially comprises a flat screen with a slight inclination to Center is formed, and a cylindrical, Sieve nozzle open on both sides, with its one opening is coupled to the flat screen center.
the flat screen covers one arranged under a washing container Drain pan.
the screen cylinder is in the center of the Drain pan arranged.
Flat screen and screen cylinder are assigned to each other in such a way that they have a funnel with a Form a truncated cone, the frustoconical Upper part has a very slight slope.
This formation of the sieve combination sets in so-called self-cleaning effect. Because of the inclination of the flat screen, this is not only covered by liquid Restraining solid particles that are also transported enforced but at the same time by part of the Flushing liquid in a cross flow, which to the center the sieve combination is directed overflows, this Cross flow the retained solid particles to the center of the sieve combination. Located in this center a coarse sieve, which coarsest impurities for prevents manual removal of the same. This one Coarse sieve passing solid particles get with the Part of the rinsing liquid that flows across the flat filter forms, inside the screen cylinder, where it settle and are pumped out after a cleaning process can be. The led into the inside of the screen cylinder Flushing liquid becomes radial in a further filter process passed through the screen jacket of the screen cylinder while doing so cleaned.
a filter screen for a liquid-carrying household appliance which at least has a sieve section with a sieve surface, that in a horizontal plane or slightly to horizontal plane inclined plane is arranged and of Liquid can be flowed through, the liquid transported solid particles can be retained, that the screen surface at least one zone one opposite the remaining screen surface has an elevated position.
Will be many Solid particles filtered out of the filter sieve so store this on the lower parts of the sieve surface until, in extreme cases, the entire lower one Area is completely covered. Then, however, how before a filtering process over raised areas of the sieve surface respectively.
the at least one raised zone can be in the form of ribs be formed on the screen surface. But should one Variety of elevated zones can be set, so the Screen area instead of several arranged ribs instead which take a wave, sawtooth or similar shape. If the filter screen is made of a metal, it can raised zones or the ribs by embossing a sieve plate be attached.
a preferred embodiment of the invention has a a cross flow to the surface of the screen Working fluid that led to a filter screen center becomes. This cross-flow takes place Solid particles to the filter screen center with. The resulting one This can cause the filter screen to self-clean be improved that two or more rib-shaped designed elevated zones, the longitudinal axis of the ribs on each a straight line passing through the filter screen center are arranged on the screen surface. As a result of that the working fluid only in the areas between the ribs, the flow rate increases this cross flow, which eventually leads to a ver leads to better cleaning effect.
An alternative embodiment the sieve surface, which is all around Including circular sectors extending waveform also offers the improved self-cleaning effect described above of the filter screen.
FIG. 1 is shown at the bottom of a partially Rinsing container 1 of a household dishwasher downward projecting drain pan 2 attached. Their opening to the washing container 1 is from a flat screen 3 and a Coarse sieve 9 covered.
Flat screen 3 and coarse screen 9 are Components of a removable sieve combination, which additionally a coarse screen cylinder 9 'and also one includes cylindrical fine screen connector 4.
the flat screen 3 has a circular in its center Breakthrough 10 with a center point 12 to which of the coarse screen cylinder 9 'and the fine screen connection 4 are coupled below are covered by the coarse sieve 9 from above are.
At the lowest point of the coarse screen cylinder that is open towards the bottom 9 ' is the intake port of a drain pump 5 connected. Promotes at the end of a washing program the drain pump 5 rinsing liquid, which cleaned Leftovers moved, in a drain system, not shown.
On the bottom of the drain pan 2 is an intake manifold a circulating pump 6 in the direction of the bearing.
a pressure switch 7 with a pressure chamber 8 regulates the fresh water supply to a working level in the rinsing tank 1.
the spray devices not shown by the circulation pump 6 rinsing liquid supplied in the washing container 1 collects after falling back or flowing in the drain pan 2 at the bottom of the washing compartment 1.
a suction area 2 'for the circulating pump 6 Before entering a suction area 2 'for the circulating pump 6 becomes the rinsing liquid when passing through the sieve combination 3, 4, 9, 9 'filtered.
the flushing liquid In order to get into the suction area 2 ', can the flushing liquid a first way through the Flat screen 3 or a second path through the coarse screen 9 and then through the coarse screen cylinder 9 'and Take the fine screen connector 4. Filtered out on flat screen 3 Dirt particles are a result of a minor Inclination of the flat screen 3 in the direction of the flat screen center 10, 12 rinsed.
the dirt particles are able to are to pass the Gröbstsieb 9, they collect in the Inside the coarse screen cylinder 9 'or the fine screen connector 4, where they remain until the pumping process.
the washing liquid is very dirty there is a risk that the screen surface of the flat screen 3 such a large amount of dirt particles from the washing liquid filtered that a transport filtered this No more dirt particles in the filter screen center 10, 12 is possible.
the screen surface moves of the flat screen 3 partially or completely, so that on this reduces the free screen area of the screen combination becomes.
a smaller amount of rinsing liquid supplied to the circulation pump for circulation can be.
they are rib-shaped Elevations 11 arranged on the flat screen 3.
These elevations 11 are by an embossing process of the flat screen 3 made of metal attached to this.
the rib-shaped Elevations 11 have the same sieve structure as the remaining screen surface of the flat screen 3.
the order the elevations 11 is designed such that their Show the longitudinal axis to the center 12 of the filter screen center. From Fig. 3, which is a section through the longitudinal axis shows a rib-shaped elevation 11, is its formation clearly visible.
the rib-shaped elevations 11 cause on the one hand that if the remaining screen surface is covered with dirt particles sufficient free screen area for an undisturbed Circulation operation of the dishwasher available stands. Also, by targeting the increases 11 to the center 12 of the filter screen center 10, 12 achieved that compared to an unembossed Surface sieve 3 increased speed of a flow across to the screen surface, which the filtered off Dirt particles particularly effective to the filter screen center 10, 12 transported. This increased cross flow arises in that the filter screen center 10, 12 flowing liquid around the embossed portion of the Screen area reduced flow area is available.

Landscapes

Washing And Drying Of Tableware (AREA)
Sewage (AREA)

EP99113956A 1998-09-10 1999-07-17 Filtre à tamis pour machine assurant le deplacement de liquide Expired - Lifetime EP0988825B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19841354		1998-09-10
DE19841354A DE19841354C2 (de)	1998-09-10	1998-09-10	Filtersieb für ein flüssigkeitsführendes Haushaltsgerät

Publications (3)

Publication Number	Publication Date
EP0988825A2 true EP0988825A2 (fr)	2000-03-29
EP0988825A3 EP0988825A3 (fr)	2000-05-10
EP0988825B1 EP0988825B1 (fr)	2003-04-16

Family

ID=7880472

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP99113956A Expired - Lifetime EP0988825B1 (fr)	1998-09-10	1999-07-17	Filtre à tamis pour machine assurant le deplacement de liquide

Country Status (2)

Country	Link
EP (1)	EP0988825B1 (fr)
DE (2)	DE19841354C2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1340448A2 (fr)	2002-02-28	2003-09-03	Whirlpool Corporation	Filtre plat pour un appareil conducteur d'eau, notamment un lave-vaisselle
EP1424034A1 (fr) *	2002-11-28	2004-06-02	Whirlpool Corporation	Lave-vaisselle comportant un filtre plat ayant des zones avec des trous de différents diamètres
EP1709898A1 (fr) *	2005-04-05	2006-10-11	Electrolux Home Products Corporation N.V.	Filtre pour lave-vaisselle

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US8627832B2 (en)	2010-12-13	2014-01-14	Whirlpool Corporation	Rotating filter for a dishwashing machine
DE102010041158B4 (de) *	2010-09-21	2023-07-06	BSH Hausgeräte GmbH	Geschirrspülmaschine
WO2015127982A1 (fr) *	2014-02-28	2015-09-03	Arcelik Anonim Sirketi	Filtre fin ayant une efficacité de filtration améliorée, destiné à être utilisé dans un lave-vaisselle et lave-vaisselle le comprenant

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1628645B2 (de) *	1967-08-18	1972-02-10	Alfred Heinkel & Co Kg, 7343 Kuchen	Einrichtung an geschirrschuelmaschinen zum filtern des umge waelzten spuelwassers
US3891548A (en) *	1973-09-13	1975-06-24	Whirlpool Co	Manual screen filter for automatic washer and method
DE2508302C2 (de) *	1975-02-26	1976-12-02	Licentia Gmbh	Geschirrspuelmaschine
DE4103056A1 (de) *	1991-02-01	1992-08-13	Licentia Gmbh	Geschirrspuelmaschine mit einer siebanordnung
DE4400877C2 (de) *	1994-01-14	1997-07-31	Aeg Hausgeraete Gmbh	Verfahren zur Erkennung verschmutzter Siebe in Haushalt-Geschirrspülmaschinen
US5700329A (en) *	1996-05-22	1997-12-23	White Consolidated Industries, Inc.	Filter standpipe for dishwasher
KR0135836Y1 (ko) *	1996-05-31	1999-05-15	배순훈	세탁기용 휠터

1998
- 1998-09-10 DE DE19841354A patent/DE19841354C2/de not_active Expired - Fee Related
1999
- 1999-07-17 EP EP99113956A patent/EP0988825B1/fr not_active Expired - Lifetime
- 1999-07-17 DE DE59905043T patent/DE59905043D1/de not_active Expired - Lifetime

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1340448A2 (fr)	2002-02-28	2003-09-03	Whirlpool Corporation	Filtre plat pour un appareil conducteur d'eau, notamment un lave-vaisselle
EP1424034A1 (fr) *	2002-11-28	2004-06-02	Whirlpool Corporation	Lave-vaisselle comportant un filtre plat ayant des zones avec des trous de différents diamètres
EP1709898A1 (fr) *	2005-04-05	2006-10-11	Electrolux Home Products Corporation N.V.	Filtre pour lave-vaisselle
WO2006105876A1 (fr) *	2005-04-05	2006-10-12	Electrolux Home Products Corporation N.V.	Element filtre d'un lave-vaisselle

Also Published As

Publication number	Publication date
DE59905043D1 (de)	2003-05-22
EP0988825A3 (fr)	2000-05-10
EP0988825B1 (fr)	2003-04-16
DE19841354C2 (de)	2003-04-30
DE19841354A1 (de)	2000-03-16

Legal Events

Date	Code	Title	Description
2000-02-11	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
2000-03-24	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
2000-03-29	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): DE FR GB IT NL
2000-03-29	AX	Request for extension of the european patent	Free format text: AL;LT;LV;MK;RO;SI
2000-05-10	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
2000-05-10	AX	Request for extension of the european patent	Free format text: AL;LT;LV;MK;RO;SI
2000-12-06	17P	Request for examination filed	Effective date: 20001011
2001-01-24	AKX	Designation fees paid	Free format text: DE FR GB IT NL
2001-04-25	17Q	First examination report despatched	Effective date: 20010312
2002-05-07	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
2002-08-30	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
2002-08-30	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
2002-09-25	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
2003-02-28	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
2003-04-16	AK	Designated contracting states	Designated state(s): DE FR GB IT NL
2003-04-16	REG	Reference to a national code	Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH
2003-05-22	REF	Corresponds to:	Ref document number: 59905043 Country of ref document: DE Date of ref document: 20030522 Kind code of ref document: P
2003-08-13	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)	Effective date: 20030717
2003-10-03	ET	Fr: translation filed
2004-02-20	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
2004-02-20	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
2004-04-07	26N	No opposition filed	Effective date: 20040119
2008-11-28	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: NL Payment date: 20080724 Year of fee payment: 10
2008-12-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 20080723 Year of fee payment: 10
2010-03-24	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 20090717
2010-04-01	NLV4	Nl: lapsed or anulled due to non-payment of the annual fee	Effective date: 20100201
2010-05-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090717
2011-10-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 20110729 Year of fee payment: 13
2012-09-28	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100201
2013-04-26	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST Effective date: 20130329
2013-04-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120731
2018-10-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: IT Payment date: 20180724 Year of fee payment: 20 Ref country code: DE Payment date: 20180723 Year of fee payment: 20
2019-07-17	REG	Reference to a national code	Ref country code: DE Ref legal event code: R071 Ref document number: 59905043 Country of ref document: DE

Publication	Publication Date	Title
DE69518046T2 (de)	2001-03-22	Sprühmethode für Geschirrspüler und Vorrichtung für deren Durchführung
DE3114663C2 (de)	1992-11-26	Siebanordnung in der Ablaufwanne des Spülbehälters einer Geschirrspülmaschine
DE68910298T2 (de)	1994-05-05	Einrichtung für einen Geschirrspüler.
DE3888522T2 (de)	1994-09-01	Vorrichtung und verfahren zum filtrieren.
DE8802328U1 (de)	1988-08-11	Geschirrspülmaschine mit selbstreinigendem Umlaufsieb
DE2733576A1 (de)	1978-02-02	Filterspuelvorrichtung fuer geschirrspuelmaschinen
DE60133720T2 (de)	2009-07-02	Aufbau der Flüssigkeitsdurchgänge in einer Spülmaschine
EP1709898A1 (fr)	2006-10-11	Filtre pour lave-vaisselle
DE1128094B (de)	1962-04-19	Vorrichtung zum Filtern des Schmutzwassers bei Geschirrspuelmaschinen
CH625681A5 (fr)	1981-10-15
DE3218109A1 (de)	1982-12-02	Verfahren und vorrichtung zum herausfiltern von schmutzteilchen aus einem fluessigkeits-teilchen-gemisch
DE4236931C2 (de)	1997-12-04	Sammeltopf einer Geschirrspülmaschine mit einer Siebkombination
DE2703434A1 (de)	1978-08-03	Einrichtung an geschirrspuelmaschinen zum filtern des spuelwassers
EP0988825B1 (fr)	2003-04-16	Filtre à tamis pour machine assurant le deplacement de liquide
DE2508302C2 (de)	1976-12-02	Geschirrspuelmaschine
DE69302373T2 (de)	1996-09-19	Geschirrspülmaschine mit ventilvorrichtung zum separieren von granulat von der waschlauge
DE102020111295B3 (de)	2021-01-21	Filter und Verwendung des Filters in einer Filtervorrichtung zur Filtration einer Feststoffpartikel enthaltenden wässrigen Flüssigkeit
DE9204727U1 (de)	1992-06-25	Geschirrspüler mit selbstreinigendem Rezirkulationsfilter
DE2656557C2 (de)	1984-04-05	Filtereinrichtung für eine Geschirrspülmaschine
DE3842640C2 (de)	1996-07-18	Geschirrspülmaschine
DE3507229A1 (de)	1986-09-04	Einrichtung an geschirrspuelmaschinen zum filtern des umgewaelzten spuelwassers
DE19636014B4 (de)	2006-03-02	Vorrichtung und Verfahren zur Filtration einer Flüssigkeit
DE69908454T2 (de)	2004-05-13	Geschirrspülmaschine
DE4337187C1 (de)	1994-11-10	Rückspülbare Filtereinrichtung
DE8914616U1 (de)	1991-04-11	Bandfiltereinrichtung zur Reinigung von Bearbeitungsflüssigkeiten