DE3935503C2 - - Google Patents

Info

Publication number
DE3935503C2
DE3935503C2 DE19893935503 DE3935503A DE3935503C2 DE 3935503 C2 DE3935503 C2 DE 3935503C2 DE 19893935503 DE19893935503 DE 19893935503 DE 3935503 A DE3935503 A DE 3935503A DE 3935503 C2 DE3935503 C2 DE 3935503C2
Authority
DE
Grant status
Grant
Patent type
Prior art keywords
filter element
folds
zag
zig
filter
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 - Fee Related
Application number
DE19893935503
Other languages
German (de)
Other versions
DE3935503A1 (en )
Inventor
Ralf 7067 Pluederhausen De Nick
Dieter 7120 Bietigheim De Noack
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.)
Mahle Filtersysteme GmbH
Original Assignee
Knecht Filterwerke 7000 Stuttgart De 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.)
Filing date
Publication date
Grant date

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor
    • B01D29/11Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13Supported filter elements
    • B01D29/15Supported filter elements arranged for inward flow filtration
    • B01D29/21Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor
    • B01D29/11Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13Supported filter elements
    • B01D29/23Supported filter elements arranged for outward flow filtration
    • B01D29/232Supported filter elements arranged for outward flow filtration with corrugated, folded or wound sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2201/00Details relating to filtering apparatus
    • B01D2201/12Pleated filters
    • B01D2201/122Pleated filters with pleats of different length

Description

Die Erfindung betrifft ein Ringfilterelement aus ei nem zick-zack-förmig gefalteten Filtermaterial nach dem Oberbegriff des Anspruchs 1. The invention relates to a ring filter element from egg nem zigzag-shaped folded filter material according to the preamble of claim 1.

Aus der US-PS 46 55 921 ist ein derartiges Filterelement bekannt, bei dem die aufeinander folgenden Falten des zick-zack-förmig gefalteten Fil termaterials so ausgebildet sind, daß jede auf die jeweils vorausgehende Falte folgende Falte eine un terschiedliche radiale Tiefe aufweist, vgl. From US-PS 46 55 921, such a filter element is known in which the consecutive folds of the zig-zag-shaped folded Fil are termaterials formed so that each has on each preceding fold following fold an un terschiedliche radial depth, cf. , auch US-PS 46 73 503. also US-PS 46 73 503rd

Ein weiteres Filterelement ist bekannt aus der DE- AS 23 11 855. Das dort gezeigte Filterelement aus ei nem Streifen aus mit Kunstharz imprägniertem Filter papier ist in eine hohle zylindrische Form geformt, wobei der Streifen in Ziehharmonikaweise um zwei al ternierende Gruppen von Faltlinien gefaltet und an seinen Enden zur Bildung einer Reihe von Faltlagen verbunden ist, die radial einwärts in bezug auf das Element gesehen, W-Form aufweisen, so daß die beiden Faltlagen, die sich von den äußeren zum inneren Um fang des Elementes erstrecken, sich mit schmalen Faltlagen, die sich nur über einen Teil der Strecke zu dem inneren Umfang erstrecken, abwechseln. A further filter element is known from DE-AS 23 11 855. The filter element shown therein from egg nem strip impregnated with synthetic resin filter paper formed into a hollow cylindrical shape, wherein the strip is folded in accordion fashion to two al ternierende groups of fold lines, and is connected at its ends to form a series of folding layers that seen radially inwardly with respect to the element having W-shape, so that the two folded layers, the catch from the outer to the inner to extend the element, with narrow folded layers which extend only over a part of the distance to the inner periphery, alternate.

Nachteilig an einer derartigen Ausführung ist, daß sie trotz Ausnutzung der relativ breiten Zwischenräu me an dem äußeren Umfang des Filterelementes durch Vorsehen einer schmalen Faltlage nach jeder breiten Faltlage nicht zu einer optimalen Filterflächenaus nutzung ausreicht. A disadvantage of such a design that in spite of utilizing the relatively wide Zwischenräu me it is not sufficient to use an optimum Filterflächenaus on the outer periphery of the filter element by providing a narrow folded position after each wide folded position.

Das gleiche gilt für ein Ringfilterelement gemäß DE- OS 16 11 083, bei dem zwischen einer langen Hauptfal te jeweils mehrere kurze Nebenfalten vorgesehen sein können. The same is true for a ring filter element according to DE-OS 16 11 083 in which te between a long Hauptfal each case a plurality of short side folds may be provided.

Aus der US-PS 30 22 861 ist fernerhin ein Flachfilterelement bekannt, bei dem eine Anzahl von langen und kurzen Falten aufeinander folgen, um eine Mehrzahl von Buc keln und Tälern aufeinanderfolgender langer Falten zu bilden, die jeweils von mindestens einer kurzen Falte getrennt sind. From US-PS 30 22 861, a flat filter element is known henceforth, in which a number of long and short wrinkles follow one another to form a plurality of Buc angles and valleys of successive long folds, each separated by at least one short pleat. Die zwischen den langen Falten liegen den kurzen Falten weisen dabei über den Umfang gese hen unterschiedliche radiale Tiefen auf. Between the long folds are the short pleated have in this case on the scope sailed hen different radial depths.

Der Erfindung liegt die Aufgabe zu grunde, eine optimale Anordnung des Filtermaterials aufzuzeigen, bei dem einerseits der Filtrationswir kungsgrad noch verbessert und andererseits die Stand zeit des Filters weiter erhöht wird. The invention is based on the object to show an optimum arrangement of the filter material, in which on the one hand Filtrationswir ciency further improved and on the other hand, the life of the filter is further increased.

Die Lösung der Erfindung wird erreicht mit einem Ringfilterelement mit den Merkmalen nach dem Kennzei chen des Patentanspruchs 1. The solution of the invention is achieved with a ring-shaped filter element having the features according to the Kennzei surfaces of claim 1.

Eine vorteilhafte Ausgestaltung der Erfindung ist in dem Anspruch 2 enthalten. An advantageous embodiment of the invention is included in the claim. 2

Ein Ausführungsbeispiel nach der Erfindung ist skiz zenhaft in der Zeichnung dargestellt. An embodiment of the invention is shown skiz zenhaft in the drawing.

Ein Ringfilterelement 1 für einen runden Filterein satz umfaßt einen Filterpapierstreifen 2 , der zick- zack-förmig so gefaltet ist, daß jeweils auf zwei lange Falten 3 eine kürzere Falte 4 folgt. A ring filter element 1 for a round filter inlet kit comprises a strip of filter paper 2, which is zig-zag folded so that following each of two long folds 3 a shorter pleat. 4

Das günstigste Maß d t für die Tiefe der kurzen Falte 4 ist abhängig vom Verhältnis Außendurchmesser d a zu Innendurchmesser d i des Filtereinsatzes und so ge wählt, daß der Totraum zwischen den Falten 3 , 4 ein Minimum aufweist. The most favorable degree d t is the depth of the short fold 4 is dependent on the ratio of outside diameter d a to the internal diameter d i of the filter insert and so-selected that the dead space between the folds 3, 4 at a minimum.

Durch eine derartige Gestaltung des Ringfilterelemen tes wird die wirksame Filterfläche im Vergleich zu entsprechenden Filtereinsätzen gleicher äußerer Bau abmessungen beträchtlich erhöht und somit der Filtra tionswirkungsgrad und die Standzeit des Filters ver bessert. By such a design of the Ringfilterelemen tes the effective filter area is considerably increased and thus the Filtra tion efficiency and the service life of the filter improves ver the same external dimensions construction in comparison with corresponding filter elements.

Claims (2)

  1. 1. Ringfilterelement aus einem zick-zack-förmig ge falteten Filtermaterial, mit radial ausgerichte ten über die radiale Tiefe unterschiedlich langen Falten, von denen die kürzeren radial außen lie gen, dadurch gekennzeichnet, daß auf jeweils eine kurze ( 4 ) mindestens zwei lange Falten ( 3 ) folgen, wobei jeweils die kurzen ( 4 ) und die langen Falten ( 3 ) über den gesamten Umfang gesehen jeweils gleiche radiale Tiefe auf weisen. 1. Ring filter element made of a zig-zag ge pleated filter material, with radially teach th beyond the radial depth of different lengths folds, of which the shorter radially outwards lie gene, characterized in that in each case a short (4) at least two long wrinkles (3) follow, in each case the short (4) and the long folds (3) over the entire periphery seen each have the same radial depth.
  2. 2. Ringfilterelement aus einem zick-zack-förmig ge falteten Filtermaterial nach Anspruch 1, dadurch gekennzeichnet, daß jeweils zwei lange Falten ( 3 ) auf jeweils ei ne kurze Falte ( 4 ) folgen. 2. Ring filter element made of a zig-zag-shaped folded filter material ge according to claim 1, characterized in that two long folds (3) follow each egg ne short fold (4).
DE19893935503 1989-10-25 1989-10-25 Expired - Fee Related DE3935503C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19893935503 DE3935503C2 (en) 1989-10-25 1989-10-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19893935503 DE3935503C2 (en) 1989-10-25 1989-10-25

Publications (2)

Publication Number Publication Date
DE3935503A1 true DE3935503A1 (en) 1991-05-02
DE3935503C2 true DE3935503C2 (en) 1992-12-03

Family

ID=6392163

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19893935503 Expired - Fee Related DE3935503C2 (en) 1989-10-25 1989-10-25

Country Status (1)

Country Link
DE (1) DE3935503C2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6113784A (en) 1992-11-06 2000-09-05 Pall Corporation Filter
DE202011109098U1 (en) 2010-12-28 2012-02-10 Sartorius Stedim Biotech Gmbh filter

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5320657A (en) * 1993-04-30 1994-06-14 Dana Corporation Staggered short pleat air filter
EP1595590A1 (en) * 1999-01-07 2005-11-16 Cuno Incorporated Pleated filter element and method of forming a pleated filter element
DE60125052T2 (en) 2000-09-15 2007-06-28 3M Innovative Properties Co., St. Paul Spiral folded filter cartridges
CN1942235A (en) * 2004-04-15 2007-04-04 安格斯公司 Pleated-type cartridge filter device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3022861A (en) * 1958-01-08 1962-02-27 American Air Filter Co Filter medium
DE1611083A1 (en) * 1967-08-16 1971-05-19 Faudi Feinbau separating element
GB1426173A (en) * 1972-03-11 1976-02-25 Gen Motors Ltd Fluid filter elements
JPS6229052Y2 (en) * 1984-07-03 1987-07-25
US4673503A (en) * 1985-07-18 1987-06-16 Tokyo Roki Co., Ltd. Variant length pleated filter element

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6113784A (en) 1992-11-06 2000-09-05 Pall Corporation Filter
DE202011109098U1 (en) 2010-12-28 2012-02-10 Sartorius Stedim Biotech Gmbh filter
DE102010056148A1 (en) 2010-12-28 2012-06-28 Sartorius Stedim Biotech Gmbh filter
WO2012089307A1 (en) 2010-12-28 2012-07-05 Sartorius Stedim Biotech Gmbh Filter
DE102010056148B4 (en) * 2010-12-28 2013-01-03 Sartorius Stedim Biotech Gmbh filter

Also Published As

Publication number Publication date Type
DE3935503A1 (en) 1991-05-02 application

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8327 Change in the person/name/address of the patent owner

Owner name: MAHLE FILTERSYSTEME GMBH, 70376 STUTTGART, DE

8339 Ceased/non-payment of the annual fee