DE3416304A1 - Disassembly aid for filter housings, especially those for lubricating oil filters in internal combustion engines - Google Patents

Disassembly aid for filter housings, especially those for lubricating oil filters in internal combustion engines

Info

Publication number
DE3416304A1
DE3416304A1 DE19843416304 DE3416304A DE3416304A1 DE 3416304 A1 DE3416304 A1 DE 3416304A1 DE 19843416304 DE19843416304 DE 19843416304 DE 3416304 A DE3416304 A DE 3416304A DE 3416304 A1 DE3416304 A1 DE 3416304A1
Authority
DE
Germany
Prior art keywords
screw
housing
filter
driver
housing cover
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
DE19843416304
Other languages
German (de)
Other versions
DE3416304C2 (en
Inventor
Hans 7100 Heilbronn Gebert
Rolf 7117 Scheppach Möhle
Hubert 7000 Stuttgart Müller
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.)
Knecht Filterwerk 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 DE19843416304 priority Critical patent/DE3416304A1/en
Publication of DE3416304A1 publication Critical patent/DE3416304A1/en
Application granted granted Critical
Publication of DE3416304C2 publication Critical patent/DE3416304C2/de
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D27/00—Cartridge filters of the throw-away type
    • B01D27/10—Safety devices, e.g. by-passes
    • B01D27/106—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
    • B01D35/14—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
    • 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
    • B01D35/30—Filter housing constructions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

In a filter housing with an exchangeable filter insert (7), comprising a housing main part (1) to be sealed off and a removable housing lid (2), which is clamped leak-tightly against the said housing main part (1) by way of a bolt (3) engaging centrally in the base of the housing main part (1), a driver (6) is arranged on the bolt (3). As the bolt (3) is released, this driver (6) serves to lift the housing lid (2) off the housing main part (1). This automatic lifting off of the housing lid (2) as the bolt (3) is released is intended to release seized seals between the housing lid (2) and the housing main part (1) in a simple manner by means of the forces which have to be applied to unscrew the bolt (3). <IMAGE>

Description

Demontagehilfe für Filtergehäuse Dismantling aid for filter housing

insbesondere für Schmieröl filter bei Verbrennungsmotoren Die Erfindung betrifft eine Demontagehilfe für Filtergehäuse nach dem Oberbegriff des Patentanspruchs 1. in particular for lubricating oil filters in internal combustion engines The invention relates to a dismantling aid for filter housings according to the preamble of the claim 1.

Derartige Filtergehäuse sind z. B. aus der DE-AS 25 55 420 bekannt. Dort greift der Gehäusedeckel mit einem Ringbund in das abzudeckende zylindrische Gehäuse-Hauptteil ein und ist gegen dieses durch einen Dichtring radial gedichtet.Such filter housings are z. B. from DE-AS 25 55 420 known. There the housing cover engages with an annular collar in the cylindrical one to be covered Housing main part and is radially sealed against this by a sealing ring.

Gerade bei solchen Radialdichtungen ist es häufig schwierig, den Deckel nach längerem Betrieb des Filters abzuheben, da die Ringdichtung sich im laufe der Zeit an den Teilen festgesetzt hat.With such radial seals in particular, it is often difficult to remove the cover Lift off after a long period of operation of the filter, as the ring seal is in the course of the Timed the parts.

Als kritisch hat sich das geschilderte Festklemmen der Dichtung vor allem in solchen Fällen erwiesen, in denen nicht ein relativ flacher Filterdeckel, sondern ein Deckel in Form eines langgezogenen Hohlzylinders etwa glockenartig als Kunststoffteil ausgebildet war.The described clamping of the seal has proven to be critical proven especially in cases where there is not a relatively flat filter cover, but a lid in the form of an elongated hollow cylinder as a bell-shaped Plastic part was formed.

Hiervon ausgehend besteht die Aufgabe der Erfindung- darin, ein leichtes Lösen des Filtergehäusedeckels auch nach langen Betriebszeiten des Filters zu ermöglichen, bei dem jede Kraftanstrengung auch bei einer sich im Laufe der Zeit festgesetzten Dichtung vermieden werden kann.Proceeding from this, the object of the invention is to provide an easy one To enable the filter housing cover to be loosened even after the filter has been in operation for a long time, in which every effort, including one, became fixed in the course of time Seal can be avoided.

Gelöst wird diese Aufgabe durch das Vorsehen einer Montagehilfe an der Verschluß-Schraube des Filtergehäuses nach den kennzeichnenden Merkmalen des Patentanspruchs 1.This task is solved by providing an assembly aid the screw plug of the filter housing according to the characteristic features of the Claim 1.

Mit einer solchen Demontagehilfe wird beim Lösen der Verschluß-Schraube des Filtergehäuses der Gehäusedeckel automatisch angehoben und eine etwa festsitzende Dichtung zwischen diesem Gehäusedeckel und dem Gehäuse-Hauptteil zwangsläufig ohne besondere Kraftanstrengung gelöst.With such a dismantling aid, when loosening the locking screw of the filter housing the housing cover is automatically lifted and an approximately stuck Seal between this housing cover and the main housing part inevitably without particular effort resolved.

Zweckmäßige Ausgestaltungen der Demontagehilfe sind in den Unteransprüchen beschrieben.Appropriate refinements of the dismantling aid are given in the subclaims described.

Ein Ausführungsbeispiel ist in der Zeichnung dargestellt.An exemplary embodiment is shown in the drawing.

Es zeigen Fig. 1 einen Längsschnitt durch ein Filtergehäuse mit einer aufgeschraubten Mutter als Mitnehmer an der Verschluß-Schraube Fig. 2 einen Längsschnitt durch ein Filtergehäuse mit einer Nut als Mitnehmer in der Verschluß-Schraube.1 shows a longitudinal section through a filter housing with a screwed nut as a driver on the screw plug Fig. 2 shows a longitudinal section through a filter housing with a groove as a driver in the screw plug.

Das Filtergehäuse besteht aus einem Gehäusehauptteil 1 und einem glockenartig ausgebildeten Gehäusedeckel 2. Das Hauptteil 1 kann z. B. aus Aluminium und der Deckel 2 aus einem Kunststoff sein. Der Gehäusedeckel 2 ist mit Hilfe einer Schraube 3 mit dem Gehäuse-Hauptteil 1 verbunden. Die Schraube 3 weist einen an dem Gehäusedeckel 2 angreifenden Schraubenkopf auf und greift an dem Gehäuse-Hauptteil 1 in eine Gewindebohrung 4 ein. Die Dichtung zwischen Gehäusedeckel 2 und Hauptteil 1 erfolgt radial über einen Dichtring 5.The filter housing consists of a main housing part 1 and a bell-shaped one trained housing cover 2. The main part 1 can, for. B. made of aluminum and the Lid 2 be made of a plastic. The housing cover 2 is with the help of a screw 3 connected to the main housing part 1. The screw 3 has one on the housing cover 2 attacking screw head and engages on the main housing part 1 in a threaded hole 4 a. The seal between the housing cover 2 and the main part 1 is carried out radially a sealing ring 5.

An der Schraube 3 ist als Mitnehmer eine Mutter 6 angebracht.A nut 6 is attached to the screw 3 as a driver.

Wird die Schraube 3 zum Abnehmen des Gehäusedeckels 2 und Wechseln des Filtereinsatzes 7 gelöst, so schlägt die Mutter 6 an ein Rohrteil 8 des Gehäusedeckels 2 an und hebt bei weiterem Lösen der Schraube 3 den Gehäusedeckel 2 von dem Hauptteil 1 ab.The screw 3 is used to remove the housing cover 2 and change it of the filter insert 7 is released, the nut 6 strikes against a tubular part 8 of the housing cover 2 and lifts at further loosening the screw 3 the housing cover 2 from the main part 1.

Bei der in Fig. 2 gezeigten Alternative ist der Aufbau des Filters ähnlich. Abweichend ist jedoch die Ausbildung des Mitnehmers an der Schraube 3. Hier wird anstelle der Mutter 6 eine Ringnut 9 in der Schraube 3 verwendet. In diese Ringnut 9 greift von dem Rohrteil 8 des Gehäusedeckels 2 ein Schnappelement 10 ein. Dieses Schnappelement 10 kann aus einzelnen biegsamen Laschen ausgebildet sein, die sich an den inneren Umfang der Ringnut anlegen. Dabei sind diese Laschen zweckmäßigerweise als eine Art Wiaerhacken in der Weise ausgebildet, daß die Schraube 3 zwar in den Gehäusedeckel 2 eingeführt werden kann, wobei die Laschen des Mitnehmerelementes 10 in die Ringnut 9 einspringen, aber ein anschließendes Herausziehen der Schraube 3 dann nur noch über die Höhe der Ringnut möglich ist. Auf diese Weise legt sich die Unterflanke 11 der Ringnut 9 beim Lösen der Schraube 3 an das Mitnehmerelement 10 an, wodurch sich bei weiterem Herausdrehen der Schraube der Gehäusedeckel von dem Gehäuse-Hauptteil 1 abhebt.In the alternative shown in Fig. 2, the structure of the filter similar. However, the design of the driver on the screw 3 differs. Here, instead of the nut 6, an annular groove 9 is used in the screw 3. In these The annular groove 9 engages a snap element 10 from the tubular part 8 of the housing cover 2. This snap element 10 can be formed from individual flexible tabs, which lie against the inner circumference of the ring groove. These tabs are expedient designed as a kind of Wiaerhacken in such a way that the screw 3 although in the Housing cover 2 can be inserted, the tabs of the driver element 10 jump into the annular groove 9, but a subsequent pulling out of the screw 3 is then only possible over the height of the annular groove. In this way it subsides the lower flank 11 of the annular groove 9 when loosening the screw 3 on the driver element 10, which causes the housing cover of the main housing part 1 lifts off.

Claims (4)

Ansprüche emontagehilfe für Filtergehäuse, insbesondere für Sc hmierölfilter bei Verbrennungsmotoren, mit einem wechselbaren Filtereinsatz (7), bestehend aus einem abzudeckenden Gehäuse-Hauptteil (1) und einem abnehmbaren Gehäusedeckel (2), der mit einer axial in die Gewindebohrung (4) eines Gegenlagers innerhalb des Filtergehäuses eingreifenden mit ihrem Kopf außen an dem Gehäusedeckel (2) anliegenden Schraube (3) gegen den abzudeckenden Gehäuse-Hauptteil (1) des Filtergehäuses, gegen den er über eine elastische Dichtung anliegt, verspannt ist, dadurch g e k e n n z e i c h n e t daß die Schraube (3) mit einem Mitnehmer (#, 9) versehen ist, der bei verschlossenem Filtergehäuse innerhalb dieses liegt und der sich beim Lösen der Schraube (3) an dem Gehäusedeckel (2) anlegt und diesen von dem Gehäuse-Hauptteil (1) bei weiterem Lösen der Schraube (3) abhebt. Claims assembly aid for filter housings, in particular for lubricating oil filters for internal combustion engines, with an exchangeable filter insert (7), consisting of a main housing part to be covered (1) and a removable housing cover (2), the one with an axially in the threaded hole (4) of a counter bearing inside the filter housing engaging screw with its head resting on the outside of the housing cover (2) (3) against the main housing part to be covered (1) of the filter housing, against the it rests on an elastic seal, is tensioned, thereby g e k e n n z e i c h n e t that the screw (3) is provided with a driver (#, 9), which at sealed filter housing is located within this and when loosening the Place the screw (3) on the housing cover (2) and remove it from the main housing part (1) lifts off when the screw (3) is loosened further. 2. Demontagehilfe nach Anspruch 1, dadurch g e k e n n z e i c h n e t daß der Mitnehmer eine von dem freien Gewindeende der Schraube (3) aufgebrachte Mutter (6) ist. 2. Disassembly aid according to claim 1, characterized in that g e k e n n z e i c h n e t that the driver is one of the free threaded end of the screw (3) applied Mother (6) is. 3. Demontagehilfe nach Anspruch 1, dadurch g e k e n n z e i c h n e t daß der Mitnehmer eine Ringnut 9 oder Ringstufe in der Schraube ist, in die ein Schnappelement (10) des Gehäusedeckels (2) eingreift. 3. Disassembly aid according to claim 1, characterized in that g e k e n n z e i c h n e t that the driver is an annular groove 9 or annular step in the screw into which a snap element (10) of the housing cover (2) engages. .4. Demontagehilfe nach Anspruch 3, dadurch g e k e n n z e i c h n e t daß das Schnappelement (10) nur in Richtung eines Lösens der Schraube (3) sperrend wirkt, während es in Gegenrichtung ein ungehindertes Durchführen der Schraube (3) gestattet..4. Disassembly aid according to claim 3, characterized in that it is possible to use it n e t that the snap element (10) only in the direction of loosening the screw (3) has a blocking effect, while in the opposite direction there is an unhindered passage of the screw (3) permitted.
DE19843416304 1984-05-03 1984-05-03 Disassembly aid for filter housings, especially those for lubricating oil filters in internal combustion engines Granted DE3416304A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19843416304 DE3416304A1 (en) 1984-05-03 1984-05-03 Disassembly aid for filter housings, especially those for lubricating oil filters in internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843416304 DE3416304A1 (en) 1984-05-03 1984-05-03 Disassembly aid for filter housings, especially those for lubricating oil filters in internal combustion engines

Publications (2)

Publication Number Publication Date
DE3416304A1 true DE3416304A1 (en) 1985-11-07
DE3416304C2 DE3416304C2 (en) 1987-07-09

Family

ID=6234840

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19843416304 Granted DE3416304A1 (en) 1984-05-03 1984-05-03 Disassembly aid for filter housings, especially those for lubricating oil filters in internal combustion engines

Country Status (1)

Country Link
DE (1) DE3416304A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3543437C1 (en) * 1985-12-09 1987-03-26 Knecht Filterwerke Gmbh Liquid filter, especially lubricating-oil filter for internal-combustion engines
DE3622154C1 (en) * 1986-07-02 1987-05-21 Daimler Benz Ag Filter arrangement
DE3625764C1 (en) * 1986-07-30 1987-09-24 Knecht Filterwerke Gmbh Liquid filter, in particular lubricating oil filter for internal combustion engines
EP0526932A1 (en) * 1991-08-02 1993-02-10 AC Delco Systems Overseas Corporation Disposable oil filter
US5589060A (en) * 1991-03-28 1996-12-31 Knecht Filterwerke Gmbh Filter for liquids, in particular internal-combustion engine lubricant oils
DE19539918C1 (en) * 1995-10-27 1997-02-06 Hengst Walter Gmbh & Co Kg Liquid filter, in particular for oil or fuel of an internal combustion engine, and matching filter connection flange on the machine side
FR2754887A1 (en) * 1996-10-23 1998-04-24 Valeo Thermique Moteur Sa REMOVABLE TANK CONDENSER FOR A REFRIGERATION CIRCUIT, PARTICULARLY A MOTOR VEHICLE
EP0915307A1 (en) * 1997-11-10 1999-05-12 Valeo Thermique Moteur S.A. Condensor for air-conditioning with fluid reservoir with interchangeable cartridge
WO2002016004A1 (en) * 2000-08-23 2002-02-28 Caterpillar Inc. Fluid filter operatable only with installed filter element

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104815469B (en) * 2015-04-09 2016-06-08 浙江威泰汽配有限公司 A kind of filter element
CN110124384B (en) * 2019-05-19 2022-03-15 非润科技(山东)有限公司 Sewage treatment system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2886180A (en) * 1956-03-19 1959-05-12 Caterpillar Tractor Co Full flow filter with oil retaining means
US3487942A (en) * 1968-08-22 1970-01-06 Motor Filter Mfg Co Filter unit
US3508657A (en) * 1968-04-29 1970-04-28 Pall Corp High pressure filter assembly having an easily detachable bowl cover

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2886180A (en) * 1956-03-19 1959-05-12 Caterpillar Tractor Co Full flow filter with oil retaining means
US3508657A (en) * 1968-04-29 1970-04-28 Pall Corp High pressure filter assembly having an easily detachable bowl cover
US3487942A (en) * 1968-08-22 1970-01-06 Motor Filter Mfg Co Filter unit

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3543437C1 (en) * 1985-12-09 1987-03-26 Knecht Filterwerke Gmbh Liquid filter, especially lubricating-oil filter for internal-combustion engines
DE3622154C1 (en) * 1986-07-02 1987-05-21 Daimler Benz Ag Filter arrangement
US4863599A (en) * 1986-07-02 1989-09-05 Daimler-Benz Aktiengesellschaft Filter arrangement
DE3625764C1 (en) * 1986-07-30 1987-09-24 Knecht Filterwerke Gmbh Liquid filter, in particular lubricating oil filter for internal combustion engines
US5589060A (en) * 1991-03-28 1996-12-31 Knecht Filterwerke Gmbh Filter for liquids, in particular internal-combustion engine lubricant oils
EP0526932A1 (en) * 1991-08-02 1993-02-10 AC Delco Systems Overseas Corporation Disposable oil filter
DE19539918C1 (en) * 1995-10-27 1997-02-06 Hengst Walter Gmbh & Co Kg Liquid filter, in particular for oil or fuel of an internal combustion engine, and matching filter connection flange on the machine side
FR2754887A1 (en) * 1996-10-23 1998-04-24 Valeo Thermique Moteur Sa REMOVABLE TANK CONDENSER FOR A REFRIGERATION CIRCUIT, PARTICULARLY A MOTOR VEHICLE
EP0838642A1 (en) * 1996-10-23 1998-04-29 Valeo Thermique Moteur S.A. Condenser with disconnectable receiver for cooling circuit, particulary of a motor vehicle
US5974828A (en) * 1996-10-23 1999-11-02 Valeo Thermique Moteur Condenser with removable reservoir for a refrigeration circuit, in particular
EP0915307A1 (en) * 1997-11-10 1999-05-12 Valeo Thermique Moteur S.A. Condensor for air-conditioning with fluid reservoir with interchangeable cartridge
FR2770896A1 (en) * 1997-11-10 1999-05-14 Valeo Thermique Moteur Sa AIR CONDITIONING CONDENSER PROVIDED WITH A FLUID TANK WITH INTERCHANGEABLE CARTRIDGE
US6158503A (en) * 1997-11-10 2000-12-12 Valeo Thermique Moteur Air conditioning condenser having a fluid tank with interchangeable cartridge
WO2002016004A1 (en) * 2000-08-23 2002-02-28 Caterpillar Inc. Fluid filter operatable only with installed filter element
US6481580B1 (en) 2000-08-23 2002-11-19 Caterpillar Inc Fluid filter with locking mechanism

Also Published As

Publication number Publication date
DE3416304C2 (en) 1987-07-09

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