DE3935503C2 - - Google Patents
Info
- Publication number
- DE3935503C2 DE3935503C2 DE3935503A DE3935503A DE3935503C2 DE 3935503 C2 DE3935503 C2 DE 3935503C2 DE 3935503 A DE3935503 A DE 3935503A DE 3935503 A DE3935503 A DE 3935503A DE 3935503 C2 DE3935503 C2 DE 3935503C2
- Authority
- DE
- Germany
- Prior art keywords
- folds
- short
- filter element
- filter
- long
- 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
Links
- 239000000463 material Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/15—Supported filter elements arranged for inward flow filtration
- B01D29/21—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/23—Supported filter elements arranged for outward flow filtration
- B01D29/232—Supported filter elements arranged for outward flow filtration with corrugated, folded or wound sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/12—Pleated filters
- B01D2201/122—Pleated 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 made of egg filter material folded in a zigzag shape 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. auch US-PS 46 73 503.From US-PS 46 55 921 is such a filter element is known in which the one another following folds of the zig-zag folded fil termaterials are designed so that each one on the each previous fold following fold an un has different radial depths, cf. also US-PS 46 73 503.
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.Another filter element is known from DE AS 23 11 855. The filter element shown there made of egg a strip of filter impregnated with synthetic resin paper is shaped into a hollow cylindrical shape, the stripe in concertina style by two al terning groups of fold lines folded and on its ends to form a series of folds connected radially inward with respect to the Seen element, have W shape, so the two Folding positions, which differ from the outer to the inner order the beginning of the element, narrow Folding positions that are only part of the route extend to the inner circumference, 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 an embodiment is that despite the use of the relatively wide space me on the outer circumference of the filter element Provide a narrow fold position after each wide Folded position does not result in an optimal filter surface use is sufficient.
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 applies to a ring filter element according to DE OS 16 11 083, in which between a long main fall te several short minor folds may be provided can.
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. Die zwischen den langen Falten liegen den kurzen Falten weisen dabei über den Umfang gese hen unterschiedliche radiale Tiefen auf.From US-PS 30 22 861 is also a flat filter element known in which a number of long and short Folds follow one another to form a plurality of bucks and valleys of successive long folds form, each of at least one short crease are separated. Which lie between the long folds the short folds point across the circumference 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 reasons, an optimal arrangement of the filter material to show, on the one hand, the filtration system efficiency still improved and on the other hand the stand time of the filter is increased further.
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 filter element with the characteristics according to the label Chen of claim 1.
Eine vorteilhafte Ausgestaltung der Erfindung ist in dem Anspruch 2 enthalten.An advantageous embodiment of the invention is in included in claim 2.
Ein Ausführungsbeispiel nach der Erfindung ist skiz zenhaft in der Zeichnung dargestellt.An embodiment according to the invention is sketchy shown 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 insert comprises a filter paper strip 2 , which is folded in a zigzag shape such that a shorter fold 4 follows two long folds 3 .
Das günstigste Maß dt für die Tiefe der kurzen Falte 4 ist abhängig vom Verhältnis Außendurchmesser da zu Innendurchmesser di des Filtereinsatzes und so ge wählt, daß der Totraum zwischen den Falten 3, 4 ein Minimum aufweist.The cheapest dimension d t for the depth of the short fold 4 is dependent on the ratio of the outer diameter d a to the inner diameter d i of the filter insert and so selected that the dead space between the folds 3 , 4 has 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.Through such a design of the ring filter element The effective filter area is compared to corresponding filter inserts of the same outer construction dimensions increased considerably and thus the Filtra efficiency and the service life of the filter ver improves.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3935503A DE3935503A1 (en) | 1989-10-25 | 1989-10-25 | Ring filter element - with a short fold followed by at least two long folds |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3935503A DE3935503A1 (en) | 1989-10-25 | 1989-10-25 | Ring filter element - with a short fold followed by at least two long folds |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3935503A1 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 |
---|---|---|---|
DE3935503A Granted DE3935503A1 (en) | 1989-10-25 | 1989-10-25 | Ring filter element - with a short fold followed by at least two long folds |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3935503A1 (en) |
Cited By (2)
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)
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 |
EP1322396B1 (en) | 2000-09-15 | 2006-12-06 | 3M Innovative Properties Company | Spiral pleated filter cartridges |
EP1757355A4 (en) * | 2004-04-15 | 2007-06-13 | Entegris Inc | Pleated-type cartridge filter device |
Family Cites Families (5)
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 | Separator |
GB1426173A (en) * | 1972-03-11 | 1976-02-25 | Gen Motors Ltd | Fluid filter elements |
JPS6115021U (en) * | 1984-07-03 | 1986-01-28 | 東京濾器株式会社 | filter element |
US4673503A (en) * | 1985-07-18 | 1987-06-16 | Tokyo Roki Co., Ltd. | Variant length pleated filter element |
-
1989
- 1989-10-25 DE DE3935503A patent/DE3935503A1/en active Granted
Cited By (5)
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 |
---|---|
DE3935503A1 (en) | 1991-05-02 |
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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 |