DE4446263A1 - Valve rod for a filter housing with a sealing cover and a pot-shaped lower part - Google Patents

Valve rod for a filter housing with a sealing cover and a pot-shaped lower part

Info

Publication number
DE4446263A1
DE4446263A1 DE4446263A DE4446263A DE4446263A1 DE 4446263 A1 DE4446263 A1 DE 4446263A1 DE 4446263 A DE4446263 A DE 4446263A DE 4446263 A DE4446263 A DE 4446263A DE 4446263 A1 DE4446263 A1 DE 4446263A1
Authority
DE
Germany
Prior art keywords
valve rod
valve
overflow
carrier part
opening
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.)
Granted
Application number
DE4446263A
Other languages
German (de)
Other versions
DE4446263C2 (en
Inventor
Elke Bruss
Rolf Moehle
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 DE4446263A priority Critical patent/DE4446263C2/en
Priority to FR9511819A priority patent/FR2728482B1/en
Priority to GB9523455A priority patent/GB2296200B/en
Publication of DE4446263A1 publication Critical patent/DE4446263A1/en
Application granted granted Critical
Publication of DE4446263C2 publication Critical patent/DE4446263C2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B01D29/114—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 arranged for inward flow filtration
    • 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
    • B01D35/147—Bypass or safety 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
    • B01D35/14—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
    • B01D2201/16—Valves
    • B01D2201/162—Valves with 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
    • B01D2201/30—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/10—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters
    • F01M2001/105—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the layout of the purification arrangements
    • F01M2001/1064—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the layout of the purification arrangements comprising drains for oil to the carter, e.g. to recover spilled oil during change of filters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • Lift Valve (AREA)

Abstract

In a filter with a filter casing and a cover lid (1), a valve rod (2) is housed within the cover lid (1) and serves to control an outflow opening in the filter casing when opening the cover lid. An overflow valve (6) is integrated in a portion in the valve rod (2) in the region where the valve rod (2) is disconnectably connected with the cover lid. <IMAGE>

Description

Die Erfindung betrifft einen Ventilstab für ein Filterge­ häuse mit einem Verschlußdeckel und einem topfförmigen Un­ terteil nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a valve rod for a filter housing with a cover and a cup-shaped Un terteil according to the preamble of claim 1.

Bei gattungsgemäßen Filtergehäusen ist das Überström-Si­ cherheitsventil im Fuß des Gehäuses angebracht. Eine solche Ausführung zeigt DE 43 03 695 A1.In generic filter housings, the overflow is Si Safety valve installed in the base of the housing. Such Version shows DE 43 03 695 A1.

Hiervon ausgehend beschäftigt sich die Erfindung mit dem Problem, das Überströmventil auf konstruktiv einfachere und kostengünstiger herstellbare Weise innerhalb des Filterge­ häuses anzuordnen.Proceeding from this, the invention deals with the Problem, the relief valve on structurally simpler and less expensive way to manufacture within the filter to arrange house.

Eine Lösung hierfür zeigt das kennzeichnende Merkmal des Anspruchs 1 auf.The characteristic feature of the Claim 1 on.

Danach ist das Überströmventil ein an den Ventilstab ange­ bundenes Teil, wobei der Ventilstab zusammen mit dem Über­ strömventil lösbar in dem Verschlußdeckel für das Filterge­ häuse gelagert werden kann.The overflow valve is then attached to the valve rod tied part, the valve rod together with the over flow valve releasable in the cover for the filter can be stored.

Insbesondere kann der erfindungsgemäße Ventilstab bei einem gattungsgemäßen Filter gegen einen solchen ohne ein Über­ strömventil ausgetauscht werden, ohne an dem Verschlußdeckel oder dem Filtergehäuse Änderungen vornehmen zu müssen. Es handelt sich damit für bestehende Filter um eine prakti­ sche Nachrüsteinrichtung für solche Fälle, in denen ein Überströmventil nicht vorgesehen war.In particular, the valve rod according to the invention can be used in a generic filter against such without an over flow valve can be replaced without the cover or to have to make changes to the filter housing. It is therefore a practi for existing filters  retrofit for cases where a Overflow valve was not provided.

Die erfindungsgemäße Lösung eignet sich auch für Fälle, in denen insbesondere in dem Verschlußdeckel bereits ein Über­ strömventil fest mit diesem verbunden vorhanden war. In diesen Fällen braucht nur der Deckel gegen einen solchen für eine Aufnahme eines erfindungsgemäßen Ventilstabes aus­ getauscht zu werden.The solution according to the invention is also suitable for cases in which, especially in the cover, already has an over flow valve was firmly connected to this. In In these cases, only the lid needs one for receiving a valve rod according to the invention to be exchanged.

Zweckmäßige Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche und werden im Zusammenhang mit einem noch zu beschreibenden Ausführungsbeispiel näher erläutert werden.Appropriate embodiments of the invention are the subject matter of the subclaims and are in connection with one Embodiment yet to be described will.

Ein solches Ausführungsbeispiel ist in der Zeichnung darge­ stellt.Such an embodiment is shown in the drawing poses.

Diese zeigt
einen Schnitt durch einen Verschlußdeckel für ein Filtergehäuse zusammen mit einem in dem Verschlußdeckel gelagerten Ventil­ stab.This shows
a section through a cap for a filter housing together with a valve rod mounted in the cap.

Der Verschluß-Deckel 1 ist mit einem Gewinde versehen, um von lotrecht oben auf ein topfförmiges Gehäuse eines Fil­ ters aufgeschraubt werden zu können.The closure lid 1 is provided with a thread in order to be screwed vertically from above onto a pot-shaped housing of a filter.

In den Verschluß-Deckel 1 ist lösbar ein Ventilstab 2 ein­ geschnappt. Dieser Ventilstab 2 verschließt mit seinem un­ teren Ende 3 eine Abflußöffnung in dem Filtergehäuse (nicht dargestellt) bei geschlossenem Deckel 1. Bei geöffnetem Deckel 1 ist die betreffende Abflußöffnung des Filtergehäu­ ses für einen freien Abfluß freigegeben.In the closure cover 1 a valve rod 2 is releasably snapped. This valve rod 2 closes with its lower end 3 a drain opening in the filter housing (not shown) when the lid is closed. 1 When the lid 1 is open, the relevant drain opening of the filter housing is released for free drainage.

In dem oberen Bereich des Ventilstabes ist radial dicht ein Ringfilter-Element 4 gelagert. Das Ringfilter-Element 4 kann von radial außen nach innen durchströmt werden.In the upper area of the valve rod, a ring filter element 4 is radially sealed. The ring filter element 4 can be flowed through from radially outside to inside.

Den oberen Bereich des Ventilstabes 2, über den dieser an dem Deckel 1 befestigt ist, bildet ein Trägerteil 5. Dieses Trägerteil 5 ist einerseits über einen Schnappverschluß mit dem unteren Teil des Ventilstabes 2 verbunden und anderer­ seits ebenfalls über einen Schnappverschluß in dem Deckel 1 gehalten.The upper region of the valve rod 2 , by means of which it is attached to the cover 1 , forms a carrier part 5 . This carrier part 5 is connected on the one hand via a snap lock to the lower part of the valve rod 2 and on the other hand also held in the cover 1 via a snap lock.

Eine zentrale Öffnung in dem Trägerteil 5 bildet einen Teil des Überströmventiles 6. Diese Öffnung stellt eine Verbin­ dung zwischen Rein- und Rohraum des Filters dar.A central opening in the carrier part 5 forms part of the overflow valve 6 . This opening represents a connection between the clean and tube space of the filter.

Verschlossen gehalten wird diese Öffnung durch eine Ventil­ platte 7, die unter der Kraft einer Feder 8 von unten an die vorgenannte Öffnung dicht angedrückt wird. Die Feder 8 stützt sich einerseits an dem oberen Öffnungsrand des Trä­ gerteiles 5 ab und zum anderen an einer mit der Ventilplat­ te 7 fest verbundenen Halterung 9.This opening is kept closed by a valve plate 7 , which is pressed tightly under the force of a spring 8 from below to the aforementioned opening. The spring 8 is based on the one hand on the upper opening edge of the Trä gerteiles 5 and on the other hand on a te with the Ventilplat te 7 bracket 9th

Die Halterung 9 kann ein Blechteil sein, das mit der Ven­ tilplatte 7 vernietet ist.The bracket 9 may be a sheet metal part which is riveted to the Ven tilplatte 7 .

Die Montage des Überströmventiles 6 erfolgt in der Weise, daß bei noch nicht mit dem unteren Teil des Ventilstabes 2 verbundenem Trägerteil 5 die Ventilplatte 7 von der unteren Seite an den Öffnungsrand des Trägerteiles 5 angelegt wird und die Halterung 9 von der anderen Seite der Öffnung an­ greifend mit der Ventilplatte 7 vernietet wird. Danach wird das Trägerteil 5 auf das untere Teil des Ventilstabes 2 aufgeschnappt. Die Trennung zwischen unterem Teil des Ven­ tilstabes 2 und dem Trägerteil 5 ist allein für die vorge­ nannte Art der Montage des Überströmventiles 6 notwendig und zweckmäßig. Grundsätzlich könnte das Trägerteil 5 auch mit dem übrigen Teil des Ventilstabes 2 ein kompaktes ein­ heitliches, nicht in Einzelteile auftrennbares, Kompaktteil sein. Der beschriebene Ventilstab 2 zusammen mit dem Ver­ schlußdeckel 1 wird besonders vorteilhaft bei lotrecht an­ geordneten Ölfiltern für Verbrennungsmotoren eingesetzt.The overflow valve 6 is mounted in such a way that when the carrier part 5 is not yet connected to the lower part of the valve rod 2 , the valve plate 7 is applied from the lower side to the opening edge of the carrier part 5 and the holder 9 from the other side of the opening is riveted to the valve plate 7 . Then the carrier part 5 is snapped onto the lower part of the valve rod 2 . The separation between the lower part of the Ven tilstabes 2 and the support member 5 is necessary and appropriate solely for the aforementioned type of mounting the relief valve 6 . In principle, the carrier part 5 could also be a compact, uniform, compact part that cannot be separated into individual parts with the remaining part of the valve rod 2 . The described valve rod 2 together with the United cover plate 1 is particularly advantageously used in perpendicular to ordered oil filters for internal combustion engines.

Claims (6)

1. Ventilstab für ein Filtergehäuse mit einem Verschluß- Deckel und einem topfförmigen Gehäuse-Unterteil, in dem ein mit seiner Mittelachse etwa lotrecht ausgerichtetes radial durchströmtes Ringfilter-Element einen Roh- von einem Reinraum unter Zwischenschaltung eines Überström- Sicherheitsventiles trennt, der trennbar mit dem Ver­ schluß-Deckel verbindbar ist und dessen Ende bei ge­ schlossenem Verschluß-Deckel eine mit dem zentrischen Innenraum des Ringfilter-Elementes in Verbindung ste­ hende lotrecht unten liegende Abströmöffnung verschlos­ sen und bei geöffnetem Verschluß-Deckel geöffnet hält, dadurch gekennzeichnet, daß das Überströmventil (6) in das lotrecht obere Ende des Ventilstabes (2) eingebaut ist.1.Valve rod for a filter housing with a closure lid and a pot-shaped housing lower part, in which a ring filter element, which is approximately perpendicularly aligned with its central axis, separates a raw from a clean room with the interposition of an overflow safety valve, which can be separated with the Ver closure cover is connectable and the end of a closed closure cover with a central inner space of the ring filter element in connection standing vertical downflow opening is closed and held open when the cover is open, characterized in that the overflow valve ( 6 ) is installed in the vertically upper end of the valve rod ( 2 ). 2. Ventilstab nach Anspruch 1, dadurch gekennzeichnet, daß dessen Endbereich, in dem das Überströmventil (6) eingebaut ist, ein eigenständiges mit dem übrigen Teil des Ventilstabes (2) verbindbares Trägerteil (5) ist.2. Valve rod according to claim 1, characterized in that its end region, in which the overflow valve ( 6 ) is installed, is an independent support part ( 5 ) which can be connected to the remaining part of the valve rod ( 2 ). 3. Ventilstab nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Trägerteil (5) mit dem übrigen Teil des Ventil­ stabes (2) über eine Schnappverbindung verbindbar ist. 3. Valve rod according to claim 1 or 2, characterized in that the carrier part ( 5 ) with the remaining part of the valve rod ( 2 ) can be connected via a snap connection. 4. Ventilstab nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Trägerteil (5) eine zentrale Öffnung in Achs­ richtung des Ventilstabes (2) besitzt, deren Rand als Ventilsitz dient, an den von lotrecht unten eine Ven­ tilplatte (7) dicht anlegbar ist, die nach lotrecht oberhalb der Öffnung mit einer Halterung (9) verbindbar ist, die eine das Überströmventil (6) in Schließstel­ lung haltende Feder (8) gegenüber dem oberen Öffnungs­ rand des Trägerteiles (5) abstützt.4. Valve rod according to one of the preceding claims, characterized in that the carrier part ( 5 ) has a central opening in the axial direction of the valve rod ( 2 ), the edge of which serves as a valve seat, to which a valve plate ( 7 ) from perpendicularly below can be applied tightly is, which can be connected vertically above the opening with a holder ( 9 ), which supports an overflow valve ( 6 ) in the closed position processing spring ( 8 ) opposite the upper opening edge of the carrier part ( 5 ). 5. Ventilstab nach Anspruch 4, dadurch gekennzeichnet, daß die Halterung (9) des Überströmventiles (6) mit der Ventilplatte (7) nach in dem Trägerteil (5) erfolgter Vormontage fest verbunden ist.5. Valve rod according to claim 4, characterized in that the holder ( 9 ) of the overflow valve ( 6 ) with the valve plate ( 7 ) after the pre-assembly in the carrier part ( 5 ) is firmly connected. 6. Ventilstab nach Anspruch 5, dadurch gekennzeichnet, daß die Halterung (9) ein Blechteil ist, das innerhalb des Trägerteiles (5) mit der Ventilplatte (7) vernietet ist.6. Valve rod according to claim 5, characterized in that the holder ( 9 ) is a sheet metal part which is riveted within the carrier part ( 5 ) with the valve plate ( 7 ).
DE4446263A 1994-12-23 1994-12-23 Valve rod for a filter housing with a sealing cover and a pot-shaped lower part Expired - Lifetime DE4446263C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE4446263A DE4446263C2 (en) 1994-12-23 1994-12-23 Valve rod for a filter housing with a sealing cover and a pot-shaped lower part
FR9511819A FR2728482B1 (en) 1994-12-23 1995-10-06 VALVE ROD FOR A FILTER BODY COMPRISING A CLOSED COVER COVER AND A POT-SHAPED BOTTOM
GB9523455A GB2296200B (en) 1994-12-23 1995-11-16 Valve rod assembly for a filter casing with a cover lid and a pot shaped bottom part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4446263A DE4446263C2 (en) 1994-12-23 1994-12-23 Valve rod for a filter housing with a sealing cover and a pot-shaped lower part

Publications (2)

Publication Number Publication Date
DE4446263A1 true DE4446263A1 (en) 1996-06-27
DE4446263C2 DE4446263C2 (en) 1996-11-14

Family

ID=6536894

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4446263A Expired - Lifetime DE4446263C2 (en) 1994-12-23 1994-12-23 Valve rod for a filter housing with a sealing cover and a pot-shaped lower part

Country Status (3)

Country Link
DE (1) DE4446263C2 (en)
FR (1) FR2728482B1 (en)
GB (1) GB2296200B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0775513A2 (en) 1995-11-27 1997-05-28 Knecht Filterwerke Gmbh Liquid filter with disk stack heat exchanger
DE29915840U1 (en) * 1999-09-09 2001-01-25 Ing. Walter Hengst GmbH & Co KG, 48147 Münster Openwork valve body filter
WO2001017658A2 (en) * 1999-09-09 2001-03-15 Ing. Walter Hengst Gmbh & Co. Kg Filter with a valve combination component
DE29921543U1 (en) 1999-12-07 2001-04-12 Ing. Walter Hengst GmbH & Co KG, 48147 Münster Filter insert for a liquid filter
DE10038531A1 (en) * 2000-08-08 2002-02-21 Mann & Hummel Filter liquid filters
US6415759B2 (en) 2000-02-29 2002-07-09 Bombardier-Rotax Gmbh Four stroke engine having flexible arrangement
AT501858B1 (en) * 2005-02-02 2007-11-15 Spx Corp FILTRATION SYSTEM WITH OVERCURRENT VALVE REGULATION AND METHOD

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2309397B (en) * 1996-01-25 2000-08-02 Mann & Hummel Filter Oil filter
DE19961579A1 (en) * 1999-12-21 2001-06-28 Mann & Hummel Filter Filter especially as oil filter in lubricating oil system of internal combustion engine has valve rod with seal through which outlet opening in cooler is sealed relative to fluid flow and to connections communicating with filter housing
DE20118683U1 (en) * 2001-11-19 2003-03-27 Hengst GmbH & Co.KG, 48147 Münster Oil filter for internal combustion engines, comprises a clean oil pipe, at least a section of which is movably supported between an operating position and a maintenance position

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EP0314915A2 (en) * 1987-11-04 1989-05-10 Ing. Walter Hengst GmbH & Co. KG Filter for the purification of lubricating oil
US5049269A (en) * 1989-06-08 1991-09-17 Sunstrand Corporation Filter assembly with spring loaded valve
DE4240656A1 (en) * 1991-12-17 1993-07-01 Mann & Hummel Filter Filter for engine fuel or lubricating oil
DE4303695A1 (en) * 1993-02-09 1994-08-11 Knecht Filterwerke Gmbh Oil filter for cleaning lubricating oil

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Publication number Priority date Publication date Assignee Title
DE1049629B (en) * 1959-01-29 Fram Corporation, Providence, R. I. (V. St. A.) Exchangeable filter insert and combined oil filter for main and secondary flow in internal combustion engines
US2575995A (en) * 1946-06-10 1951-11-20 Briggs Filtration Company By-pass filter
US2589920A (en) * 1947-12-13 1952-03-18 Kralinator Products Ltd Oil filter
US2879892A (en) * 1952-12-01 1959-03-31 James F Tapp Signaling means for oil filter
DE1040843B (en) * 1954-03-10 1958-10-09 Fram Corp Filters for cleaning the lubricating oil of internal combustion engines, especially in motor vehicles
US3331509A (en) * 1964-06-15 1967-07-18 Michigan Dynamics Inc Strainer
DE1761220A1 (en) * 1967-04-19 1971-04-15 Avant Ind Card cover
DE2339891A1 (en) * 1973-08-07 1975-02-20 Braukmann Armaturen Household water filter with dirt blowdown - and backflushing of filter obtained by double internal flushing valve
DE2612002A1 (en) * 1975-03-26 1976-10-14 Caterpillar Tractor Co FILTER ARRANGEMENT
EP0314915A2 (en) * 1987-11-04 1989-05-10 Ing. Walter Hengst GmbH & Co. KG Filter for the purification of lubricating oil
US5049269A (en) * 1989-06-08 1991-09-17 Sunstrand Corporation Filter assembly with spring loaded valve
DE4240656A1 (en) * 1991-12-17 1993-07-01 Mann & Hummel Filter Filter for engine fuel or lubricating oil
DE4303695A1 (en) * 1993-02-09 1994-08-11 Knecht Filterwerke Gmbh Oil filter for cleaning lubricating oil

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0775513A2 (en) 1995-11-27 1997-05-28 Knecht Filterwerke Gmbh Liquid filter with disk stack heat exchanger
DE29915840U1 (en) * 1999-09-09 2001-01-25 Ing. Walter Hengst GmbH & Co KG, 48147 Münster Openwork valve body filter
WO2001017658A2 (en) * 1999-09-09 2001-03-15 Ing. Walter Hengst Gmbh & Co. Kg Filter with a valve combination component
WO2001017658A3 (en) * 1999-09-09 2001-09-13 Hengst Walter Gmbh & Co Kg Filter with a valve combination component
US7029575B1 (en) 1999-09-09 2006-04-18 Hengst Gmbh & Co. Kg Filter with a valve combination component
DE29921543U1 (en) 1999-12-07 2001-04-12 Ing. Walter Hengst GmbH & Co KG, 48147 Münster Filter insert for a liquid filter
US6415759B2 (en) 2000-02-29 2002-07-09 Bombardier-Rotax Gmbh Four stroke engine having flexible arrangement
DE10038531A1 (en) * 2000-08-08 2002-02-21 Mann & Hummel Filter liquid filters
AT501858B1 (en) * 2005-02-02 2007-11-15 Spx Corp FILTRATION SYSTEM WITH OVERCURRENT VALVE REGULATION AND METHOD

Also Published As

Publication number Publication date
FR2728482B1 (en) 1998-05-07
GB2296200B (en) 1998-08-12
DE4446263C2 (en) 1996-11-14
FR2728482A1 (en) 1996-06-28
GB2296200A (en) 1996-06-26
GB9523455D0 (en) 1996-01-17

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Owner name: MAHLE FILTERSYSTEME GMBH, 70376 STUTTGART, DE

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