DE3738718A1 - Oil filter with a drain plug - Google Patents

Oil filter with a drain plug

Info

Publication number
DE3738718A1
DE3738718A1 DE19873738718 DE3738718A DE3738718A1 DE 3738718 A1 DE3738718 A1 DE 3738718A1 DE 19873738718 DE19873738718 DE 19873738718 DE 3738718 A DE3738718 A DE 3738718A DE 3738718 A1 DE3738718 A1 DE 3738718A1
Authority
DE
Germany
Prior art keywords
oil
filter
clean
drain plug
oil chamber
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Withdrawn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
DE19873738718
Other languages
German (de)
Inventor
Raphael Ing Grad Hartung
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.)
Volkswagen AG
Original Assignee
Volkswagen AG
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 Volkswagen AG filed Critical Volkswagen AG
Priority to DE19873738718 priority Critical patent/DE3738718A1/en
Publication of DE3738718A1 publication Critical patent/DE3738718A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D27/00Cartridge filters of the throw-away type
    • B01D27/10Safety devices, e.g. by-passes
    • B01D27/106Anti-leakage or anti-return valves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Filtering 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
    • B01D35/14Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/153Anti-leakage or anti-return valves

Landscapes

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

Abstract

To allow automatic drainage even of the clean oil contained in the clean-oil space of an oil filter, a bottom transverse wall within the filter housing contains not only openings to the contaminated-oil space (15) but also a further opening (12) to the clean-oil space (6). With the drain plug (11) screwed in, this opening is sealed by the end of the screw plug shank (13) and is, accordingly, opened when the drain plug (11) is unscrewed. <IMAGE>

Description

Die Erfindung betrifft einen Ölfilter gemäß dem Oberbegriff des Patentan­ spruchs. Bei bekannten Ölfiltern dieser Art kann nach Herausschrauben der Auslaßschraube über die erwähnten Öffnungen in der Querwand das im Filterge­ häuse enthaltene ungefilterte Öl (Schmutzöl) ins Freie abfließen, so daß es bei der Demontage des Ölfilters beispielsweise von einem Ölvorratsbehälter und beim Wechseln des Filterkörpers nicht stört. Nachteilig ist jedoch, daß die im innenliegenden Reinölraum enthaltene Menge gefilterten Öls in der Fil­ teranordnung verbleibt, so daß diese Ölmenge häufig beim Hantieren mit dem demontierten Ölfilter unkontrolliert beispielsweise auf den Werkstattboden verschüttet wird.The invention relates to an oil filter according to the preamble of the patent saying. In known oil filters of this type, the Outlet screw through the openings mentioned in the transverse wall that in the filter Unfiltered oil (dirty oil) contained in the housing can flow out into the open so that it when disassembling the oil filter, for example from an oil reservoir and does not interfere when changing the filter body. The disadvantage, however, is that the amount of filtered oil in the internal clean oil chamber in the fil teranordnung remains, so that this amount of oil often when handling the dismantled oil filter unchecked, for example on the workshop floor is spilled.

Der Erfindung liegt die Aufgabe zugrunde, einen Ölfilter der eingangs genann­ ten Art so auszubilden, daß ohne Mehraufwand auch die im inneren Ölraum ent­ haltene Ölmenge abgelassen werden kann.The invention has for its object an oil filter of the beginning ten kind so that ent in the inner oil chamber without additional effort amount of oil can be drained.

Die erfindungsgemäße Lösung dieser Aufgabe besteht in den kennzeichnenden Merkmalen des Patentanspruchs.The achievement of this task consists in the characterizing Features of the claim.

Ein großer Vorteil der Erfindung ist darin zu sehen, daß die durch die Erfin­ dung gegebene Möglichkeit des Ablaufs der in den beiden Räumen enthaltenen Ölmengen ohne zusätzlichen Aufwand an Bauteilen (die Querwand ist ohnehin vorhanden, beispielsweise zum Abstützen des Filterkörpers) und ohne zusätz­ liche Verfahrensschritte (das Ablaufen der Reinölmenge erfolgt gleichzeitig mit dem Ablaufen der Schmutzölmenge über die dann freigegebene Bohrung der Ablaßschraube) erreicht wird. A great advantage of the invention is that the inventions given possibility of expiry of the contained in the two rooms Oil quantities without additional effort on components (the transverse wall is anyway available, for example to support the filter body) and without additional process steps (the amount of pure oil runs off simultaneously with the drain of the amount of dirty oil through the then released bore of Drain plug) is reached.  

Ein Ausführungsbeispiel zeigt, teilweise im Längsschnitt, die Figur.An embodiment shows, partly in longitudinal section, the figure.

Das Filtergehäuse 1 wird durch den beispielsweise aus Papierlagen 2 und dem perforierten Rohr 3 bestehenden Filterkörper 4 in den zylinderringförmigen Schmutzölraum 5 und den innerhalb des perforierten Rohres 3 liegenden Reinöl­ raum 6 unterteilt. Die Ölzufuhr zum Schmutzölraum 5 erfolgt in an sich bekann­ ter Weise in der Figur von oben her, während der Reinölraum 6 mit dem Auslaß­ rohr 7 in Verbindung steht.The filter housing 1 is divided by the filter body 4, for example consisting of paper layers 2 and the perforated tube 3 , into the cylindrical ring-shaped dirty oil chamber 5 and the clean oil chamber 6 lying within the perforated tube 3 . The oil supply to the dirty oil chamber 5 takes place in a manner known per se in the figure from above, while the clean oil chamber 6 is connected to the outlet pipe 7 .

Unterhalb des Filterkörpers 4 erkennt man die Querwand 8, die über Löcher 9 dauernd eine Verbindung zwischen dem Schmutzölraum 5 einerseits und dem Boden­ raum 10 innerhalb des Gehäuses 1 andererseits herstellt. Sobald also die Ab­ laßschraube 11 herausgeschraubt ist, kann über die Löcher 9 das noch zu reini­ gende Öl aus dem Gehäuse 1 abfließen.Below the filter body 4 , one can see the transverse wall 8 , which continuously creates a connection between the dirty oil chamber 5 on the one hand and the floor space 10 within the housing 1 on the other via holes 9 . As soon as the drain screw 11 is unscrewed, the oil still to be cleaned can flow out of the housing 1 through the holes 9 .

Die Querwand 8 weist ferner die mit der Achse der Ablaßschraube 11 fluchtende zentrale Öffnung 12 auf, die demgemäß mit dem Reinölraum 6 in Verbindung steht. Während des Betriebs des Filters ist diese Öffnung durch die Stirnseite des Schraubenschafts 13 verschlossen, wobei der Schraubenschaft 13 gleichsam wie ein Ventilkörper und der Rand 14 der Öffnung gleichsam wie ein Ventilsitz wirken. Sobald die Ablaßschraube 11 etwas in der Figur nach unten geschraubt ist, gibt sie die Öffnung 12 frei, so daß bereits jetzt eine Verbindung zwi­ schen dem Reinölraum 6 und dem Bodenraum 10 hergestellt ist. Wird die Ablaß­ schraube 11 völlig herausgedreht, fließt sowohl das Schmutzöl als auch das Reinöl durch die Öffnungen 9 und 12 über den Bodenraum 10 ab.The transverse wall 8 also has the central opening 12 which is aligned with the axis of the drain screw 11 and which is accordingly connected to the clean oil chamber 6 . During operation of the filter, this opening is closed by the end face of the screw shaft 13 , the screw shaft 13 acting as it were as a valve body and the edge 14 of the opening as it is acting as a valve seat. As soon as the drain screw 11 is slightly screwed down in the figure, it opens the opening 12 so that a connection between the clean oil chamber 6 and the floor chamber 10 is already established. If the drain screw 11 is completely unscrewed, both the dirty oil and the clean oil flow through the openings 9 and 12 through the floor space 10 .

Mit der Erfindung erfolgt also bei Herausschrauben der Ablaßschraube eine Entleerung des Filters sowohl von Schmutzöl als auch von Reinöl, so daß keine zusätzlichen Handgriffe oder dergleichen erforderlich sind. Diese Vorteile ergeben sich auch dann, wenn der Reinölraum außen und der Schmutzölraum innen liegt.With the invention thus takes place when unscrewing the drain plug Emptying the filter of both dirty oil and pure oil, so that none additional handles or the like are required. These advantages result even if the clean oil chamber is outside and the dirty oil chamber is inside lies.

Claims (1)

Ölfilter mit einem Gehäuse, das durch zumindest einen Filterkörper in einen Schmutzölraum und einen Reinölraum in konzentrischer Anordnung unterteilt ist, von denen der äußere Raum dauernd mit einem durch eine Ablaßschraube verschlossenen Bodenraum des Gehäuses in Verbindung steht, dadurch gekenn­ zeichnet, daß die Verbindung durch Löcher (9) in einer unterhalb des Filter­ körpers (4) liegenden Querwand (8) gebildet ist, die ferner eine zum inneren Raum (6) führende, mit der Ablaßschraube (11) fluchtende weitere Öffnung (12) aufweist, die im Betrieb des Filters durch die Stirnfläche des Schafts (13) der Ablaßschraube (11) verschlossen ist.Oil filter with a housing, which is divided by at least one filter body into a dirty oil chamber and a clean oil chamber in a concentric arrangement, of which the outer space is continuously connected to a bottom space of the housing which is closed by a drain screw, characterized in that the connection is made by holes ( 9 ) in a below the filter body ( 4 ) lying transverse wall ( 8 ) is formed, which further has a leading to the inner space ( 6 ), with the drain screw ( 11 ) aligned further opening ( 12 ), which is in operation of the filter is closed by the end face of the shaft ( 13 ) of the drain screw ( 11 ).
DE19873738718 1986-11-28 1987-11-14 Oil filter with a drain plug Withdrawn DE3738718A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19873738718 DE3738718A1 (en) 1986-11-28 1987-11-14 Oil filter with a drain plug

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3640712 1986-11-28
DE19873738718 DE3738718A1 (en) 1986-11-28 1987-11-14 Oil filter with a drain plug

Publications (1)

Publication Number Publication Date
DE3738718A1 true DE3738718A1 (en) 1988-07-28

Family

ID=25849818

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873738718 Withdrawn DE3738718A1 (en) 1986-11-28 1987-11-14 Oil filter with a drain plug

Country Status (1)

Country Link
DE (1) DE3738718A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0547291A1 (en) * 1991-12-17 1993-06-23 FILTERWERK MANN &amp; HUMMEL GMBH Fuel filter and/or lubricating oil filter for internal combustion engines
US5738785A (en) * 1995-12-20 1998-04-14 Baldwin Filters, Inc. Oil filter housing
US6068762A (en) * 1995-09-29 2000-05-30 Parker-Hannifin Corporation Reusable oil filter assembly
DE102004005210A1 (en) * 2004-02-03 2005-08-11 Mahle Filtersysteme Gmbh Filter for motor vehicle air intake filter comprises annular filter element connected to fixing region of filter housing on its end plates by clamp and/or locking closure
DE202007017979U1 (en) * 2007-12-20 2009-04-30 Mann+Hummel Gmbh Oil filter system of an internal combustion engine
DE102012209242A1 (en) 2012-05-31 2013-12-05 Mahle International Gmbh filtering device
EP2808071A1 (en) 2013-05-29 2014-12-03 Mahle International GmbH Filter device, in particular for an automotive car

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0547291A1 (en) * 1991-12-17 1993-06-23 FILTERWERK MANN &amp; HUMMEL GMBH Fuel filter and/or lubricating oil filter for internal combustion engines
US5374355A (en) * 1991-12-17 1994-12-20 Filterwerk Mann & Hummel Gmbh Filter for fuels or lubricants of an internal combustion engine
US6068762A (en) * 1995-09-29 2000-05-30 Parker-Hannifin Corporation Reusable oil filter assembly
US5738785A (en) * 1995-12-20 1998-04-14 Baldwin Filters, Inc. Oil filter housing
DE102004005210A1 (en) * 2004-02-03 2005-08-11 Mahle Filtersysteme Gmbh Filter for motor vehicle air intake filter comprises annular filter element connected to fixing region of filter housing on its end plates by clamp and/or locking closure
DE202007017979U1 (en) * 2007-12-20 2009-04-30 Mann+Hummel Gmbh Oil filter system of an internal combustion engine
DE102012209242A1 (en) 2012-05-31 2013-12-05 Mahle International Gmbh filtering device
WO2013178680A1 (en) 2012-05-31 2013-12-05 Mahle International Gmbh Filter device
EP2808071A1 (en) 2013-05-29 2014-12-03 Mahle International GmbH Filter device, in particular for an automotive car
DE102013210065A1 (en) 2013-05-29 2014-12-04 Mahle International Gmbh Filter device, in particular for a motor vehicle

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