WO2018065138A1 - Filtre à liquide - Google Patents

Filtre à liquide Download PDF

Info

Publication number
WO2018065138A1
WO2018065138A1 PCT/EP2017/069229 EP2017069229W WO2018065138A1 WO 2018065138 A1 WO2018065138 A1 WO 2018065138A1 EP 2017069229 W EP2017069229 W EP 2017069229W WO 2018065138 A1 WO2018065138 A1 WO 2018065138A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing part
filter housing
filter
plug
liquid
Prior art date
Application number
PCT/EP2017/069229
Other languages
German (de)
English (en)
Inventor
Ralf Kiemlen
Frank Rohde
Original Assignee
Mahle International 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 Mahle International Gmbh filed Critical Mahle International Gmbh
Publication of WO2018065138A1 publication Critical patent/WO2018065138A1/fr

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
    • 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
    • B01D2201/29—Filter cartridge constructions
    • B01D2201/291—End caps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/34—Seals or gaskets for filtering elements
    • B01D2201/347—Radial sealings
    • 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
    • B01D2201/4076—Anti-rotational 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
    • B01D2201/4092—Threaded sections, e.g. screw

Definitions

  • the present invention relates to a fluid filter with a filter housing, comprising a lower filter housing part and a screwed via a peripheral thread with the lower filter housing upper filter housing part, according to the preamble of claim 1.
  • a liquid filter in particular an oil filter for cleaning lubricating oil
  • a liquid filter comprising a receiving space for receiving a ring filter element, a lid attachable to a housing for closing the receiving space, an inlet for raw liquid, an outlet for cleaned liquid and arranged in the installed state at the bottom of the receiving space idle, through which the receiving space is emptied when removing the filter.
  • a closure arranged on the ring filter element which closes the idling, provided that the ring filter element ment inserted into the receiving space and the receiving space is closed with the lid, a reliable function of the liquid filter can be ensured.
  • occlusive lid is arranged in the installed state at the bottom of the housing and at the same time contains the idle.
  • a disadvantage of the liquid filters known from the prior art is that a comparatively complex ramp geometry is provided either on the ring filter element itself and / or on the lower filter housing part for a closable alignment of the plug-in closure element to the idling channel.
  • This comparatively complex guide geometry or guide ramp requires a comparatively complicated and expensive production.
  • the present invention therefore deals with the problem of providing for a liquid filter of the generic type an improved or at least one alternative embodiment, which is characterized in particular by a structurally simpler design and a more cost-effective production.
  • the present invention is based on the general idea to achieve a closable alignment of a plug-in closure element on a ring filter element relative to an idle channel in a filter housing exclusively by a directly cooperating with the male closure element Filtergephaseuseseiti- stop, so that the previously required for this guide geometry or guide ramp omitted and thereby both the design and also the production costs can be omitted.
  • the liquid filter according to the invention has a filter housing, comprising a particular pot-shaped, lower filter housing part and a screwed via a peripheral thread with the lower filter housing part, upper filter housing part.
  • a ring filter element is used, which is rotatably connected via a frictional connection on the upper filter housing part and at its, attributable to the bottom of the lower filter housing part, front side has an eccentrically arranged and axially projecting plug closure element for closing a provided in the bottom of the lower filter housing part idle channel ,
  • a stop for the plug-in closure element is now provided on the lower filter housing part directly next to the idle channel, which is arranged and aligned such that when screwing the two filter housing parts together a closing orientation of the plug closure element to the idling channel only by abutment of the plug closure element takes place at the stop ,
  • Other guide means or guide ramps or guide geometries are not required in the liquid filter according to the invention, so that all costs for this omitted.
  • the stop is designed as a web projecting axially inwards into the lower filter housing part educated.
  • This represents a structurally particularly simple embodiment that combines several advantages: Firstly, such a web can be produced comparatively easily by a corresponding cavity in a plastic injection molding tool, wherein in particular a conical geometry, which favors a separation of the individual plastic injection molds, is advantageous.
  • such a web influences a flow in the lower filter housing part not or only marginally, but in any case significantly less, as a known from the prior art and provided in this area guide ramp.
  • the stop By integrating the web through the protrusion of a corresponding cavity in a plastic injection molding tool, the stop can also be produced comparatively inexpensively, in particular integrally with the lower filter housing part, so that in this case the web is injected together with the lower filter housing part in a common working step becomes. Also in the formation of the lower filter housing part as a metallic cast component, such a stop formed as a web can be realized comparatively easily by providing a corresponding cavity in a mold.
  • the peripheral thread, the plug-in closure element and the lower filter housing part are matched to one another such that the peripheral thread only engages when the plug-in closure element is able to close, ie in particular aligned with the idle channel.
  • the annular filter element is thus first fixed in its assembly in the upper filter housing part during assembly and then the lower filter housing part pushed from below over the ring filter element.
  • the liquid filter is designed as an oil filter or as a fuel filter for or in a motor vehicle.
  • the liquid filter according to the invention can of course also be embodied as a water filter or as a hydraulic filter.
  • the plug-in closure element is formed integrally with a lower end disk of the ring filter element.
  • a comparatively technically simple and thus also cost-effective production of the connector Conclusion element in the manner of an eccentric and axially protruding pins conceivable.
  • an annular seal for tight sealing when immersing the pin or the plug-in closure element in the associated idle channel on the lower filter housing part, may still be provided an annular seal, which is inserted into a corresponding groove on the plug-in closure element.
  • the upper filter housing part has a central and axially projecting in the direction of the ring filter element dome.
  • the ring filter element has an upper open end disk with an elastically deformable inner edge, which is resiliently biased against an outer circumferential surface of the dome when the liquid filter is mounted and thereby forms at least part of the frictional connection.
  • Another part of the frictional connection may be formed by cooperation of the upper end plate with an inner side of the upper filter housing part.
  • 1a is a sectional view through a liquid filter according to the invention with the lower filter housing part not yet screwed to an upper filter housing part,
  • FIG. 2a is a representation as in Fig. 1 a, but in another sectional plane
  • FIG. 2b is a view as in Fig. 1 b, but according to the sectional plane shown in Fig. 2a,
  • Fig. 3 is a top view of a lower filter housing part.
  • an inventive liquid filter 1 which may be formed for example as an oil filter or as a fuel filter in a motor vehicle, a filter housing 2, comprising a particular pot-shaped, lower filter housing part 3, which via a peripheral thread 4 with an upper filter housing 5 is screwed.
  • a filter housing 2 comprising a particular pot-shaped, lower filter housing part 3, which via a peripheral thread 4 with an upper filter housing 5 is screwed.
  • a interchangeable insertable ring filter element 6 is arranged, which is frictionally rotatably connected via a frictional connection 7 with the upper filter housing part 5 and on its, a bottom 8 of the lower filter housing part 3 associated end face, such as an end plate 9, an eccentrically arranged and axially projecting plug-in closure element 10 for closing a in the bottom 8 of the lower filter housing part 3 provided idle channel 1 1 has.
  • a stop 13 for the plug-in closure element 10 is now provided on the lower filter housing part 3 directly next to the idling channel 1 1 or directly next to an input 12 in the idle channel 1 1, which is arranged and aligned such that when screwing the two filter housing parts 3, 5 together a closable alignment of the plug-in closure element 10 to the idle channel 1 1 takes place.
  • the stop 13 is preferably designed as structurally extremely simple, inwardly projecting web 14 and thereby produce cost.
  • liquid filter 1 Compared to known from the prior art liquid filters, it is possible for the first time in the liquid filter 1 according to the invention to dispense with the hitherto required and complex ramp geometry for guiding the plug-in closure element 10, which not only the production of the lower filter housing part 3, for example a filter housing pot, simplifies, which is reflected in a reduction in manufacturing costs, but in addition also the previously occupied by the guide geometries or guide ramps space is free and can now be used elsewhere.
  • the upper filter housing part 5 and / or the lower filter housing part 3 are / is designed as a plastic injection-molded part, wherein in particular the formation of the lower filter housing part 3 as a plastic injection-molded part additionally offers the advantage that the stop 13 can be replaced by the provision of a corresponding chenden cavity in the associated plastic injection molding tool comparatively easily with no or only marginal additional costs can be produced.
  • the lower filter housing part 3 as metallic
  • Die casting can be formed, so here the stop 13 can be easily realized by the corresponding provision of a cavity in the associated die-casting.
  • the frictional connection 7 is realized by two cooperating geometries, for which purpose on the upper filter housing part 5 a central and axially projecting in the direction of the ring filter element 6 Dom 15 is provided, and why the ring filter element 6 has an upper, open end plate 16 with an elastically deformable inner edge 17 which is resiliently biased against the dome 15 when the liquid filter 1 is mounted, thereby forming at least a part of the frictionally engaging connection 7 (see Fig. 4). Another part of the frictional connection 7 may be formed by cooperation of the upper end plate 16 with an inner side of the upper filter housing part 5.
  • the plug-in closure element 10 is preferably integrally formed in a known manner with the lower end plate 9 of the ring filter element 6 and can thereby be manufactured in a common plastic injection molding process with this.
  • peripheral thread 4, the plug-in closure element 10, in particular its axial length, and the lower filter housing part 3 are coordinated such that the peripheral thread 4 engages only when the plug-in closure element 10 is capable of closing, ie in particular aligned, the idle channel 1 1. This means that the peripheral thread 4 does not yet engage and thus the lower filter housing part 3 can not be screwed to the upper filter housing part 5, provided the plug-in closure element 10 not yet aligned with the idle channel 1 1.
  • peripheral thread 4, the plug-in element 10 and the lower filter housing part 3 are coordinated such that the ring filter element 6 with the plug-in closure element 10 as long as above the bottom 8 of the filter housing part 3 runs until the plug-in closure element 10 enters the closed position while the peripheral thread 4 already interlocks.
  • An assembly of the liquid filter 1 according to the invention is carried out as follows: First, the ring filter element 6 is inserted from below into the upper filter housing part 5 until it is held on the frictional connection 7 on the dome 15 of the upper filter housing part 5. Subsequently, the lower filter housing part 3 is slipped over from below over the ring filter element 6 and rotated. However, the external thread of the lower filter housing part 3 only engages in the internal thread of the upper filter housing part 5 when the plug-in closure element 10 is aligned with the idling channel 1 1, which is caused by a concern to stop 13.
  • the lower filter housing part 3 can be screwed through the peripheral thread 4 in the upper filter housing part 5, wherein the ring filter element 6 further rotated and at the same time the plug-in closure element 10 is slowly inserted into the idle channel 1 1 and seals it.
  • the lower filter housing part 3 For disassembly of the liquid filter 1 according to the invention, first the lower filter housing part 3 by a Auff motion unscrewed from the upper filter housing part 5, wherein at the same time the SteckverInstitutelement 10 of the ring filter element 6 slowly during unscrewing the idle channel 1 1 pulls out until it releases it and the liquid in the lower filter housing part 3 can be discharged via the idle channel 1 1.
  • the plug-in closure element 10 is already completely removed from the idle channel 1 1, before the peripheral thread 4 is released. Usually still some rotational movements for releasing the peripheral thread 4 must be made after the Plug-in closure element 10 is already removed from the idle channel 1 1, to ensure a safe emptying same. Subsequently, after loosening the peripheral thread 4, ie after a complete unscrewing of the lower filter housing part 3 from the upper filter housing part 5, the lower filter housing part 3 removed and then the ring filter element 6 are deducted from the dome 15 in the upper filter housing part 5.
  • the frictional connection 7 ensures an axial hold, which indeed allows for a unscrewing of the lower filter housing part 3 from the upper filter housing part 5 co-rotation of the ring filter element 6, but this holds axially at the same height, so that by the downward movement of the unscrewing lower filter housing part 3 pulls the plug-in closure element 10 slowly from the idle channel 1 1.
  • the liquid filter 1 shown in each case is shown as a hanging liquid filter, which of course may be formed as a stationary liquid filter 1, in which case the upper filter housing part 5 would be unscrewed by a rotary movement of the lower filter housing part 3 ,
  • the stiffener 18 is formed integrally with an inner frame 19 of the ring filter element, wherein the elastic inner edge 17 of the upper end plate 16, the inner frame 19 engages radially inward in the radial direction and is clamped in mounted liquid filter 1 between the inner frame 19 and the dome 15 of the upper filter housing part 5 ,
  • the liquid filter 1 according to the invention a significantly simplified and more cost-effective production of such a liquid filter 1 can be achieved since the ramp geometry previously required for positioning the plug-in closure element 10 no longer has to be provided. By eliminating this ramp geometry, the space thus released can also be used elsewhere.

Landscapes

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

Abstract

L'invention concerne un filtre à liquide (1) comprenant un boîtier de filtre (2), comprenant une partie de boîtier de filtre inférieure (3), une partie de boîtier de filtre supérieure (5) qui peut être assemblée par vissage à la partie de boîtier de filtre inférieure (3) par l'intermédiaire d'un filetage circonférentiel (4), un élément filtrant annulaire (6) insérable de manière remplaçable dans le boîtier de filtre (2) et comprenant, au niveau de sa face d'extrémité venant se placer du côté d'un fond (8) de la partie de boîtier de filtre inférieure (3), un élément de fermeture insérable (10) agencé de manière excentrique et faisant saillie axialement, destiné à fermer un canal de vidange (11) prévu dans le fond (8) de la partie de boîtier de filtre inférieure (3). Selon l'invention, l'élément filtrant annulaire (6) peut être relié de manière rotative à la partie de boîtier de filtre supérieure (5) par l'intermédiaire d'un assemblage par friction (7). De plus, sur la partie de boîtier de filtre inférieure (3), directement à côté du canal de vidange (11), se trouve une butée (13) prévue pour l'élément de fermeture insérable (10), cette butée étant disposée et orientée de manière que, lorsque les deux parties de boîtier de filtre (3, 5) sont vissées, l'élément de fermeture insérable (10) s'aligne avec le canal de vidange (11) de manière à permettre sa fermeture.
PCT/EP2017/069229 2016-10-06 2017-07-28 Filtre à liquide WO2018065138A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016219408.9 2016-10-06
DE102016219408.9A DE102016219408A1 (de) 2016-10-06 2016-10-06 Flüssigkeitsfilter

Publications (1)

Publication Number Publication Date
WO2018065138A1 true WO2018065138A1 (fr) 2018-04-12

Family

ID=59501438

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/069229 WO2018065138A1 (fr) 2016-10-06 2017-07-28 Filtre à liquide

Country Status (2)

Country Link
DE (1) DE102016219408A1 (fr)
WO (1) WO2018065138A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109091931B (zh) * 2018-10-29 2021-09-10 河南利欣制药股份有限公司 一种可自动调整位置的滤网

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19951085A1 (de) * 1999-10-23 2001-04-26 Mahle Filtersysteme Gmbh Flüssigkeitsfilter, insbesondere Ölfilter
DE102007009352A1 (de) 2007-02-23 2008-08-28 Mahle International Gmbh Flüssigkeitsfilter
DE102008051266A1 (de) * 2008-10-10 2010-04-15 Mahle International Gmbh Filtereinrichtung
DE10353424B4 (de) 2003-11-15 2012-12-13 Mahle Filtersysteme Gmbh Flüssigkeitsfilter, insbesondere Ölfilter für ein Kraftfahrzeug, und zugehöriges Ringfilterelement

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008049006A1 (de) * 2008-09-25 2010-04-01 Mahle International Gmbh Flüssigkeitsfilter
DE102010005980A1 (de) * 2010-01-28 2011-08-18 MAHLE International GmbH, 70376 Filtereinrichtung
DE102014201680A1 (de) * 2014-01-30 2015-07-30 Mahle International Gmbh Filtereinrichtung
KR101706118B1 (ko) * 2015-08-12 2017-02-13 주식회사 엠알필트레이션 오일필터 어셈블리

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19951085A1 (de) * 1999-10-23 2001-04-26 Mahle Filtersysteme Gmbh Flüssigkeitsfilter, insbesondere Ölfilter
DE10353424B4 (de) 2003-11-15 2012-12-13 Mahle Filtersysteme Gmbh Flüssigkeitsfilter, insbesondere Ölfilter für ein Kraftfahrzeug, und zugehöriges Ringfilterelement
DE102007009352A1 (de) 2007-02-23 2008-08-28 Mahle International Gmbh Flüssigkeitsfilter
DE102008051266A1 (de) * 2008-10-10 2010-04-15 Mahle International Gmbh Filtereinrichtung

Also Published As

Publication number Publication date
DE102016219408A1 (de) 2018-04-12

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