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DE19527844A1 - Ring filter element through which material passes radially - consists of pleated material with an axially sealed section - Google Patents

Ring filter element through which material passes radially - consists of pleated material with an axially sealed section

Info

Publication number
DE19527844A1
DE19527844A1 DE1995127844 DE19527844A DE19527844A1 DE 19527844 A1 DE19527844 A1 DE 19527844A1 DE 1995127844 DE1995127844 DE 1995127844 DE 19527844 A DE19527844 A DE 19527844A DE 19527844 A1 DE19527844 A1 DE 19527844A1
Authority
DE
Germany
Prior art keywords
ring
filter element
cover
ring filter
element according
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.)
Withdrawn
Application number
DE1995127844
Other languages
German (de)
Inventor
Horst Schneider
Hans Waibel
Hans Jensen
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 Filterwerk 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
Application filed by Knecht Filterwerk GmbH filed Critical Knecht Filterwerk GmbH
Priority to DE1995127844 priority Critical patent/DE19527844A1/en
Publication of DE19527844A1 publication Critical patent/DE19527844A1/en
Withdrawn legal-status Critical Current

Links

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
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/92—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging filtrate
    • B01D29/925—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging filtrate containing liquid displacement elements or cores
    • 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
    • B01D29/96—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/153—Anti-leakage or anti-return valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/30—Filter housing constructions
    • B01D2201/301—Details of removable closures, lids, caps, filter heads
    • B01D2201/305—Snap, latch or clip connecting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/40—Special measures for connecting different parts of the filter
    • B01D2201/4084—Snap or Seeger ring connecting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/48—Overflow systems

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

A ring filter element through which material passes radially, consists of a ring-shaped filter comprising pleated material, which has an endface axially sealed using a bendable plate or film covering. The inner circumference has a sleeve (6) and the covering (6) extends radially inwards over it. The ring (14) can be pressed inwards by the sleeve (6).

Description

Die Erfindung betrifft ein radial durchströmbares Ringfil­ terelement nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a radially flowable ring film terelement according to the preamble of claim 1.

In bestimmten Fällen ist es erwünscht, an dem stirnseitigen Ende eines solchen Ringfilterelementes Halterungen anzubrin­ gen, die dicht mit der Abdeckung verbunden sind.In certain cases it is desirable to use the front Bring end of such a ring filter element mounts conditions that are tightly connected to the cover.

Mit einem solchen Problem beschäftigt sich die vorliegende Erfindung und gibt hierzu mit der Ausführung nach dem kenn­ zeichnenden Teil des Anspruchs 1 eine Lösung an.The present one deals with such a problem Invention and gives this with the execution according to the kenn drawing part of claim 1 to a solution.

Zweckmäßige Ausgestaltungen sind Gegenstand der Unteransprü­ che.Appropriate configurations are the subject of the subclaims che.

Ausführungsbeispiele der Erfindung, anhand derer die beson­ deren Vorteile der Erfindung noch ausführlich erläutert wer­ den, sind in der Zeichnung dargestellt. Embodiments of the invention, based on which the particular the advantages of the invention explained in detail who those are shown in the drawing.  

Es zeigenShow it

Fig. 1 einen Schnitt durch einen axialen Endbereich eines Ringfilterelementes mit einer Lagerung in einem Filtergehäusedeckel. Fig. 1 shows a section through an axial end portion of a ring filter element with a storage in a filter housing cover.

Fig. 2 einen Schnitt durch ein alternativ ausgestaltetes Ringfilterelement mit einer Lagerung in einem Fil­ tergehäuse mit abgeschnittenem Gehäuseboden. Fig. 2 shows a section through an alternatively designed ring filter element with a storage in a Fil tergehäuse with cut-off housing bottom.

Bei der Ausführung nach Fig. 1 ist ein Ringfilterelement 1 auf einer fest mit diesem verbundenen Innenzarge 2 in einem Filtergehäuse 3 gelagert, das aus einem unteren Gehäusetopf 4 und einem mit diesem verschraubten Deckel 5 besteht.In the embodiment according to FIG. 1, a ring filter element 1 is mounted on an inner frame 2 firmly connected to it in a filter housing 3 , which consists of a lower housing pot 4 and a cover 5 screwed to it.

Das Ringfilterelement 1 besteht aus zick-zack-förmig gefal­ tetem Bahnenmaterial, das beispielsweise kunststoffim­ prägniertes Papier sein kann.The ring filter element 1 consists of zigzag-shaped folded sheet material, which can for example be plastic in the impregnated paper.

Die dargestellte Stirnseite des Ringfilterelementes 1 ist mit einer biegsamen plattenförmigen Abdeckung 6 axial ge­ dichtet. Das Material dieser Abdeckung kann beispielsweise ein thermoplastischer Elastomer sein. The end face of the ring filter element 1 shown is axially sealed with a flexible plate-shaped cover 6 . The material of this cover can be, for example, a thermoplastic elastomer.

Die Abdeckung 6 ist beispielsweise dicht mit dem Bah­ nenmaterial des Ringfilterelementes verschweißt. Radial in­ nen besitzt die Abdeckung 6 einen über das Bahnenmaterial hinausstehenden radialen Überstand 7.The cover 6 is, for example, tightly welded to the sheet material of the ring filter element. Radially in NEN, the cover 6 has a radial projection 7 which projects beyond the web material.

Die Innenzarge 2 ist an dem dargestellten Ende des Ringfil­ terelementes 1 axial über einen Mitteldom 8 geschlossen. Desweiteren ragt von der Innenzarge 2 von innerhalb des Ringfilterelementes 1 ein Stutzen 9 nach axial außen. Dieser Stutzen 9 läuft axial derart in den innerhalb des Ringfil­ terelementes 1 liegenden Teil der Innenzarge 2 ein, daß eine von axial außen offene umlaufende Nut 10 entsteht, die radi­ al außen durch eine Hülse 11 begrenzt wird, die Bestandteil der Innenzarge 2 ist. In die Nut 10 ist der radiale Über­ stand 7 der Abdeckung 6 eingelegt und liegt dort radial an der Hülse 11 an.The inner frame 2 is axially closed at the illustrated end of the Ringfil terelementes 1 via a central dome 8 . Furthermore, a socket 9 projects axially outward from the inner frame 2 from within the ring filter element 1 . This nozzle 9 runs axially in such a way that within the Ringfil terelementes 1 part of the inner frame 2 that an axially open circumferential groove 10 is formed, the radi al outside is limited by a sleeve 11 which is part of the inner frame 2 . In the groove 10 , the radial over stood 7 of the cover 6 is inserted and rests there radially on the sleeve 11 .

Der Stutzen 9 der Innenzarge 2 dient dazu, das Ringfilter­ element 1 drehbar in Federzungen 12 des Deckels 5 einzura­ sten. Zur Erzielung der Rastverbindung ist der Stutzen 9 an seinem freien Ende mit einem nach radial außen ragenden Wulst 13 versehen.The nozzle 9 of the inner frame 2 is used to the ring filter element 1 rotatably einura in spring tongues 12 of the lid 5 . To achieve the locking connection, the socket 9 is provided at its free end with a radially projecting bead 13 .

Die Dichtung der Abdeckung 6 gegenüber der Innenzarge 2 er­ folgt innerhalb der Nut 10 der Innenzarge 2. Bewirkt wird diese Dichtung durch einen in die Nut 10 einzubringenden Ring 14. Dieser Ring 14 ist radial geschlitzt, wodurch er ohne weiteres über den Wulst 13 des Stutzens 9 geschoben werden kann. Dichtend wirkt der Ring 14, weil die radiale Breite der Nut 10 geringer ist als die Summe der radialen Breiten des Ringes 14 und der Abdeckung 6. Durch dieses Maß­ verhältnis wird bei einem Ring aus weniger flexiblem Materi­ al als das Material der Abdeckung 6 das Abdeckungsmaterial verpreßt.The seal of the cover 6 with respect to the inner frame 2 it follows within the groove 10 of the inner frame 2nd This seal is brought about by a ring 14 to be inserted into the groove 10 . This ring 14 is slotted radially, as a result of which it can be easily pushed over the bead 13 of the connecting piece 9 . The ring 14 acts as a seal because the radial width of the groove 10 is less than the sum of the radial widths of the ring 14 and the cover 6 . By this ratio, the cover material is pressed in a ring made of less flexible material than the material of the cover 6 .

Durch die Verpressung des Materials der Abdeckung 6 durch den Ring 14 besitzt der Ring 14 innerhalb der Nut einen fe­ sten Halt. Um ein Herauswandern des Ringes noch zusätzlich zu sichern, besitzt der Ring 14 eine geringere axiale Höhe als das umgelegte Material der Abdeckung 6 innerhalb der Nut 10. Wird nun der Ring 14 dem freien Endbereich des umgeboge­ nen Materials der Abdeckung 6 höhenmäßig zugeordnet, so ent­ steht in dem umgebogenen Bereich der Abdeckung beim Übergang des durch den Ring 14 verpreßten Bereiches zu dem unver­ preßten Bereich eine Stufe, die ein axiales Herauswandern des Ringes 14 aus der Nut 10 sicher vermeidet.By pressing the material of the cover 6 through the ring 14 , the ring 14 has a fe most support within the groove. In order to additionally secure migration of the ring, the ring 14 has a smaller axial height than the folded material of the cover 6 within the groove 10 . If the ring 14 is now assigned to the free end area of the bent material of the cover 6 in height, then there is a step in the bent area of the cover at the transition of the area pressed by the ring 14 to the unpressed area, which causes the ring to move axially out 14 safely avoided from the groove 10 .

Bei der Ausführung nach Fig. 2 sitzt das Ringfilterelement 1 auf einer axial geteilten Innenzarge 2. Die Innenzarge 2 be­ steht aus insgesamt zwei Teilen von denen das eine ein in­ nerhalb des Ringfilterelementes 1 liegendes durchlässiges Rohr 15 und das zweite Teil ein Kopfteil 16 ist. Das durch­ lässige Rohr 15 der Innenzarge 2 besitzt an den in der Zeichnung oben liegenden Ende des Ringfilterelementes 1 ei­ nen als Hülse 17 ausgebildeten Endbereich. Um diese Hülse 17 ist der radiale Überstand 7 der Abdeckung 6 umgebogen. Radi­ al dicht verpreßt wird dieser Überstand 7 durch einen Ringabschnitt 18 des Kopfteils 16 der Innenzarge 2.In the embodiment according to FIG. 2, the ring filter element 1 is seated on an axially divided inner frame 2 . The inner frame 2 be consists of a total of two parts, one of which is a permeable tube 15 within the ring filter element 1 and the second part is a head part 16 . The through casual tube 15 of the inner frame 2 has at the top in the drawing the end of the ring filter element 1 egg nen formed as a sleeve 17 end portion. The radial projection 7 of the cover 6 is bent over this sleeve 17 . This supernatant 7 by a ring section 18 of the head portion 16 of the inner frame 2 is tightly pressed Radi al.

Das Kopfteil 16 verschließt die Innenzarge 2 axial und be­ sitzt einen Ringbund 19, mit dem die Innenzarge 2 drehbar mit dem Deckel 5 des Filtergehäuses 3 über eine Rastverbin­ dung verbunden ist.The head part 16 closes the inner frame 2 axially and sits an annular collar 19 , with which the inner frame 2 is rotatably connected to the cover 5 of the filter housing 3 via a Rastverbin extension.

Der Außendurchmesser des Ringabschnittes 18 sowie der Innen­ durchmesser der Hülse 7 sind so aufeinander abgestimmt, daß der dazwischen zu liegend kommende radiale Überstand 7 der Abdeckung 6 radial dicht zwischen diesen beiden Teilen 17, 18 verpreßt wird.The outer diameter of the ring portion 18 and the inner diameter of the sleeve 7 are coordinated so that the radial overlap 7 of the cover 6 to be located between them is radially compressed between these two parts 17 , 18 .

Damit das Kopfteil 16 radial fest mit dem Rohr 15 verbunden ist, ist das freie Ende des Ringabschnittes 18 mit dem Rohr 15 über beispielsweise Sitzrillen 20 verrastet.In order for the head part 16 is radially firmly connected to the tube 15, the free end of the ring portion 18 with the tube 15 is locked via, for example, seat grooves 20th

An dem zweiten in der Zeichnung unten liegenden Ende des Ringfilterelementes 1 ist dieses ebenfalls mit einer biegsa­ men Abdeckung 6 und einem nach innen ragenden Überstand 21 abgedeckt. Dieser Überstand 21 ist radial verpreßt zwischen einem unteren Ringabschnitt 22 der Innenzarge 2 und einem zentralen aus dem Filtergehäuseboden herausragenden Stutzen 23 radial dicht verpreßt. At the second end of the ring filter element 1 in the drawing below, this is also covered with a flexible cover 6 and an inwardly projecting projection 21 . This protrusion 21 is radially compressed between a lower ring section 22 of the inner frame 2 and a central nozzle 23 protruding radially from the filter housing base.

In dem Bereich, in dem der radiale Überstand 21 an dem Stut­ zen 23 anliegt, befindet sich etwa axial in der Mitte eine den Stutzen radial durchdringende Öffnung 24. Um die an den radialen Überstand 21 axial außen angrenzenden Räumen gegen­ über der Öffnung 24 sicher zu dichten, sind in den radialen Überstand 21 nach radial innen liegend zwei Dichtwulste 25 umlaufend angebracht. Um eine befriedigende Dichtung zu er­ zielen, muß das Material des radialen Überstandes 21 eine gewisse Elastizität aufweisen, wie es bei einem Dichtungsma­ terial üblich ist.In the area in which the radial projection 21 bears against the nozzle 23 , there is an axially in the middle an opening 24 penetrating the nozzle radially. In order to securely seal the spaces adjacent to the radial protrusion 21 axially on the outside relative to the opening 24 , two sealing beads 25 are attached circumferentially in the radial protrusion 21 lying radially inward. In order to achieve a satisfactory seal, the material of the radial projection 21 must have a certain elasticity, as is usual with a Dichtungsma material.

Claims (11)

1. Radial durchströmbares Ringfilterelement mit einem ring­ förmigen Filtrationsmittel, das insbesondere parallel zur Filterachse plissiertes Bahnenmaterial ist, bei dem minde­ stens eine Stirnseite des Filtrationsmittels durch eine bieg­ same platten- oder folienförmige Abdeckung axial gedichtet ist, mit einer am Innenumfang des Filtrationsmittels minde­ stens im Bereich dieser einen Stirnseite liegenden Hülse, dadurch gekennzeichnet, daß an dieser einen Stirnseite die Abdeckung (6) nach radial innen über die Hülse (11) hinausragt und durch einen in die Hülse (6) einführbaren und dort verbleibenden Ring (14) zwi­ schen diesem Ring (14) und der Hülse (6) dicht verpressbar ist.1. Radially flowable ring filter element with a ring-shaped filtration medium, which is in particular pleated sheet material parallel to the filter axis, in which at least one end face of the filtration medium is axially sealed by a flexible plate or film-shaped cover, with at least one on the inner circumference of the filtration medium Area of this one end face lying sleeve, characterized in that on this one end face, the cover ( 6 ) protrudes radially inward over the sleeve ( 11 ) and by a ring ( 14 ) which can be inserted into the sleeve ( 6 ) and remains there Ring ( 14 ) and the sleeve ( 6 ) can be pressed tightly. 2. Ringfilterelement nach Anspruch 1, dadurch gekennzeichnet, daß die Hülse (11) der umgebogene Kragen eines axial über die betreffende Stirnseite des Ringfilterelementes hinausra­ genden Stutzens (9) ist. 2. Ring filter element according to claim 1, characterized in that the sleeve ( 11 ) is the bent collar of an axially over the relevant end face of the ring filter element in addition to the nozzle ( 9 ). 3. Ringfilterelement nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Stutzen (9) axial verschlossen ist.3. Ring filter element according to claim 1 or 2, characterized in that the nozzle ( 9 ) is axially closed. 4. Ringfilterelement nach einem der vorhergehenden Ansprü­ che, dadurch gekennzeichnet, daß der Ring (14) radial geschlitzt ist.4. ring filter element according to one of the preceding Ansprü surface, characterized in that the ring ( 14 ) is slotted radially. 5. Ringfilterelement nach einem der vorhergehenden Ansprü­ che, dadurch gekennzeichnet, daß der radiale Abstand zwischen dem Außenumfang des Stut­ zens (9) und dem Innenumfang der Hülse (11) geringer ist als die Summe aus der Dicke des Ringes (14) und des nach radial innen ragenden Überstandes (7) der Abdeckung (6).5. ring filter element according to one of the preceding Ansprü surface, characterized in that the radial distance between the outer circumference of the Stut zens ( 9 ) and the inner circumference of the sleeve ( 11 ) is less than the sum of the thickness of the ring ( 14 ) and after radially inner protruding projection ( 7 ) of the cover ( 6 ). 6. Ringfilterelement nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß die Höhe des Ringes (14) niedriger ist als die axiale Länge des umgebogenen Teils der Abdeckung (6) und daß der Ring (14) nur an einem von dem freien Ende der Abdeckung (6) ausgehenden axialen Teilbereich der umgebogenen Abdeckung (6) anliegt. 6. Ring filter element according to claim 4 or 5, characterized in that the height of the ring ( 14 ) is lower than the axial length of the bent part of the cover ( 6 ) and that the ring ( 14 ) only at one of the free end of the cover ( 6 ) outgoing axial portion of the bent cover ( 6 ). 7. Ringfilterelement nach Anspruch 1, dadurch gekennzeichnet, daß der Ring in der Form eines Ringabschnittes (18) Teil ei­ nes axial über die Stirnseite hinaus ragenden lösbaren Teils (16) einer Innenzarge (2) des Ringfilterelementes (1) ist.7. ring filter element according to claim 1, characterized in that the ring in the form of a ring portion ( 18 ) part of egg nes axially projecting beyond the end face detachable part ( 16 ) of an inner frame ( 2 ) of the ring filter element ( 1 ). 8. Ringfilterelement nach Anspruch 7, dadurch gekennzeichnet, daß das Teil (16) axial verschlossen ist.8. ring filter element according to claim 7, characterized in that the part ( 16 ) is axially closed. 9. Ringfilterelement nach Anspruch 7 oder 8, dadurch gekennzeichnet, daß der Ringabschnitt (18) an seinem im Inneren des Ringfil­ terelementes (1) außerhalb der zu verpressenden Abdeckung (6) zu liegen kommenden Ende mit der Hülse (17) verrastbar ist.9. Ring filter element according to claim 7 or 8, characterized in that the ring section ( 18 ) at its inside of the Ringfil terelementes ( 1 ) outside the cover to be pressed ( 6 ) to come to the end with the sleeve ( 17 ) can be locked. 10. Ringfilterelement nach Anspruch 9, dadurch gekennzeichnet, daß die Verrastung durch ineinandergreifende Sitzrillen (20) gebildet wird.10. Ring filter element according to claim 9, characterized in that the latching is formed by interlocking seat grooves ( 20 ). 11. Ringfilterelement nach einem der vorhergehenden Ansprü­ che, dadurch gekennzeichnet, daß das Ringfilterelement (1) über den Stutzen (9) bzw. Ringbund (19) drehbar in dem Deckel (5) eines Filtergehäuses (3) einrastbar ist.11. Ring filter element according to one of the preceding Ansprü surface, characterized in that the ring filter element ( 1 ) via the connection piece ( 9 ) or collar ( 19 ) rotatably in the cover ( 5 ) of a filter housing ( 3 ) can be latched.
DE1995127844 1995-07-29 1995-07-29 Ring filter element through which material passes radially - consists of pleated material with an axially sealed section Withdrawn DE19527844A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1995127844 DE19527844A1 (en) 1995-07-29 1995-07-29 Ring filter element through which material passes radially - consists of pleated material with an axially sealed section

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1995127844 DE19527844A1 (en) 1995-07-29 1995-07-29 Ring filter element through which material passes radially - consists of pleated material with an axially sealed section

Publications (1)

Publication Number Publication Date
DE19527844A1 true DE19527844A1 (en) 1997-01-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE1995127844 Withdrawn DE19527844A1 (en) 1995-07-29 1995-07-29 Ring filter element through which material passes radially - consists of pleated material with an axially sealed section

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998036818A1 (en) * 1997-02-22 1998-08-27 Filterwerk Mann + Hummel Gmbh Filter
DE19915442A1 (en) * 1999-04-06 2000-10-12 Hartwig Straub Filter has an end plate made of an elastic material to provide shock absorbancy for the regenerating impulse
EP1093391B1 (en) * 1998-06-04 2007-05-02 Scania Cv Aktiebolag Liquid filter with a replaceable filter element
EP1498169B1 (en) * 1998-10-09 2010-06-16 Entegris, Inc. Filtration module

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992017262A1 (en) * 1991-03-28 1992-10-15 Knecht Filterwerke Gmbh Filter for liquids, in particular internal-combustion engine lubricant oils
DE4124323A1 (en) * 1991-07-23 1993-01-28 Knecht Filterwerke Gmbh Screw on filter for IC engine lubricating oil - consisting of upper housing part contg. filter element, and support attached to upper part having external thread for attachment to lower part
EP0559011A1 (en) * 1992-03-02 1993-09-08 Knecht Filterwerke Gmbh Ring filter element with the endwalls covered tightly by a sealing material in flat or film-like disposition
DE9411212U1 (en) * 1994-07-13 1994-09-01 Ing. Walter Hengst GmbH & Co KG, 48147 Münster Liquid filter
EP0663226A1 (en) * 1994-01-17 1995-07-19 Fleetguard International Corporation (Corporation américaine) Filter and filter cartridge with free central core for filtering motor liquids
DE4419360C1 (en) * 1994-06-03 1995-08-10 Knecht Filterwerke Gmbh Ring-shaped filter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992017262A1 (en) * 1991-03-28 1992-10-15 Knecht Filterwerke Gmbh Filter for liquids, in particular internal-combustion engine lubricant oils
DE4124323A1 (en) * 1991-07-23 1993-01-28 Knecht Filterwerke Gmbh Screw on filter for IC engine lubricating oil - consisting of upper housing part contg. filter element, and support attached to upper part having external thread for attachment to lower part
EP0559011A1 (en) * 1992-03-02 1993-09-08 Knecht Filterwerke Gmbh Ring filter element with the endwalls covered tightly by a sealing material in flat or film-like disposition
EP0663226A1 (en) * 1994-01-17 1995-07-19 Fleetguard International Corporation (Corporation américaine) Filter and filter cartridge with free central core for filtering motor liquids
DE4419360C1 (en) * 1994-06-03 1995-08-10 Knecht Filterwerke Gmbh Ring-shaped filter
DE9411212U1 (en) * 1994-07-13 1994-09-01 Ing. Walter Hengst GmbH & Co KG, 48147 Münster Liquid filter

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998036818A1 (en) * 1997-02-22 1998-08-27 Filterwerk Mann + Hummel Gmbh Filter
US6251273B1 (en) * 1997-02-22 2001-06-26 Filterwerk Mann & Hummel Gmbh Filter
EP1093391B1 (en) * 1998-06-04 2007-05-02 Scania Cv Aktiebolag Liquid filter with a replaceable filter element
EP1498169B1 (en) * 1998-10-09 2010-06-16 Entegris, Inc. Filtration module
DE19915442A1 (en) * 1999-04-06 2000-10-12 Hartwig Straub Filter has an end plate made of an elastic material to provide shock absorbancy for the regenerating impulse
DE19915442B4 (en) * 1999-04-06 2008-12-11 Hartwig Straub Use of an end plate of a star filter or cartridge filter with strapping made of plastic for cushioning a regeneration pulse

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8127 New person/name/address of the applicant

Owner name: MAHLE FILTERSYSTEME GMBH, 70376 STUTTGART, DE

8141 Disposal/no request for examination