WO1997048470A2 - Filtre - Google Patents

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Info

Publication number
WO1997048470A2
WO1997048470A2 PCT/EP1997/003076 EP9703076W WO9748470A2 WO 1997048470 A2 WO1997048470 A2 WO 1997048470A2 EP 9703076 W EP9703076 W EP 9703076W WO 9748470 A2 WO9748470 A2 WO 9748470A2
Authority
WO
WIPO (PCT)
Prior art keywords
filter
medium
film hinges
star
support medium
Prior art date
Application number
PCT/EP1997/003076
Other languages
German (de)
English (en)
Other versions
WO1997048470A3 (fr
Inventor
Martin Schetter
Martin Weindorf
Original Assignee
Filterwerk Mann+Hummel 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 Filterwerk Mann+Hummel Gmbh filed Critical Filterwerk Mann+Hummel Gmbh
Priority to JP10502222A priority Critical patent/JP2000512206A/ja
Priority to BR9709846A priority patent/BR9709846A/pt
Publication of WO1997048470A2 publication Critical patent/WO1997048470A2/fr
Publication of WO1997048470A3 publication Critical patent/WO1997048470A3/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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D27/00—Cartridge filters of the throw-away type
    • B01D27/04—Cartridge filters of the throw-away type with cartridges made of a piece of unitary material, e.g. filter paper
    • B01D27/06—Cartridge filters of the throw-away type with cartridges made of a piece of unitary material, e.g. filter paper with corrugated, folded or wound material
    • 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
    • B01D29/01—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 flat filtering elements
    • B01D29/05—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 flat filtering elements supported
    • B01D29/07—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 flat filtering elements supported with corrugated, folded or wound filtering 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
    • B01D29/11—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
    • B01D29/111—Making filtering elements
    • 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
    • B01D29/50—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 multiple filtering elements, characterised by their mutual disposition
    • 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
    • B01D29/50—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 multiple filtering elements, characterised by their mutual disposition
    • B01D29/52—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 multiple filtering elements, characterised by their mutual disposition in parallel connection
    • B01D29/54—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 multiple filtering elements, characterised by their mutual disposition in parallel connection arranged concentrically or coaxially
    • 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
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
    • 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

Definitions

  • the invention relates to a filter according to the preamble of claim 1
  • filters are known, for example by their use in the oil circuit of internal combustion engines is disadvantageous in that the filter is composed of various materials. This poses problems particularly with regard to a later disposal of the filter.
  • this object is achieved in that a filter with at least one substantially rectangular filter medium and at least one substantially rectangular support medium, which is attached to the filter medium as a support means, the connected media being folded in a star shape and sealingly connected at their contacting ends , whereby the end faces of the filter have a sealing cover.
  • the use of an essentially rectangular filter medium creates the possibility, for example, of rolling this filter medium from an endless roll during manufacture and inserting it in sections into an injection molding tool, so that the supporting medium also essentially can be sprayed onto the filter medium at right angles.
  • the simple design of the injection mold is advantageous here. If the support medium was only sprayed on after the star-shaped folding, an incomparably more expensive injection molding tool would be required
  • the filter medium consists of paper, nonwoven or screen fabric.
  • the screen fabric is made of metal or plastic.
  • the material specification given here suitably depends on the materials used for the support medium or the covers, in order to meet the requirements for a pure material design
  • the covers consist of metal, plastic or paper.
  • the choice of material for the covers is suitably made in coordination with the materials for both the sieve and the support medium
  • the support medium has film hinges, these film hinges alternately permitting a concave or convex fold with respect to the star axis.
  • This mutual arrangement of hinges makes the star-shaped folding of the plane filter prefabricated in an injection molding device possible only because the folding takes place on the material constrictions of the film hinges
  • the support medium in the area of the film hinges in particular in the area of the film hinges, which permit convex folding, have angular cutouts which define the angle of the star fold.
  • Such a miter ensures a regular appearance of the filter body, since such multilayer structures would otherwise tend to fold irregularly, which would lead to undefined contours of the filter.
  • Another advantage here is that, for example, the contacting ends can be sealed in a defined manner
  • the touching ends are glued or welded. This leads to secure seal connections and consequently to a filter that is safe to use. Furthermore, it can advantageously be provided that the covers are welded, glued or snapped onto the filter and support medium. Depending on the material pairing, these connections ensure that an inexpensive and safe filter is created
  • At least one of the covers contains a filter bypass valve. This ensures that in the event that a filter element becomes clogged, the oil flow within the internal combustion engine does not stop
  • FIG. 2 shows the detail y from FIG. 1
  • Figure 3 is a side view of the support medium
  • FIG. 4 shows the detail x from FIG. 3
  • Figure 5 is a plan view of the unfolded filter element
  • Figure 6 shows a section through a filter housing with two screen star inserts
  • FIG. 1 A star-shaped filter is shown in section in FIG. 1.
  • the structure of the filter essentially consists of the rectangular filter medium 2 and the support means 3.
  • the filter medium 2 is applied on the outside in relation to the star axis, but it would also be conceivable to apply it within the support medium 3.
  • the support means 3 has, in particular in the area of its film hinges 4, which allow convex folding with respect to the star axis, recesses which allow a defined folding.
  • FIG. 4 it is clear that the film hinges 4 alternate in such a way that, to enable the star fold, a film hinge 4 a convex fold 6 with respect to the star axis, the following film hinge 4 allow a concave fold 7.
  • the detail x from FIG. 3 is shown enlarged in FIG. 4.
  • the angular cutouts 8 in the support medium 3 required to achieve the convex folding 6 are shown in FIG. 4 in the specific exemplary embodiment at an angle of 60 degrees in relation to the unfolded, just extended support medium 3.
  • a polyester fabric which in this embodiment comes from a roll, inserted into an injection mold.
  • the filter medium 2 is separated from the roll either before or after the casting process.
  • This injection molding process creates the composite filter, which is essentially right-angled and consequently flat directly after the casting process.
  • the ends 9 from FIG. 5 are glued or welded after the folding process.
  • so-called covers 5 are attached to its end faces, which are preferably made of the same material as filter medium 2 and / or support medium 3 consist
  • a device for filtering 01 as can be seen in FIG. 6, is shown.
  • This device comprises a housing 10, a housing cover 11, which can be removed or installed for changing the filter by means of a locking device 22 and by means of a spring 16
  • Filter inserts la and lb clamped against the housing and seals the housing 10 by means of a seal 20.
  • This device further comprises an inlet 13 and an outlet 14.
  • the exemplary embodiment shown in FIG. 6 comprises two filters la and lb, which also have different separation limits.
  • the first filter la with the coarser filter medium, which consequently allows larger particles to pass through, has in one of its covers 5 a filter bypass valve 12, which essentially consists of a valve disk 17 and a valve spring 18.
  • the first filter is separated from the second filter 1b located in the housing 10, which has a finer filter medium 2, by means of a cover 5 and an on-off valve 15 integrated therein.
  • the separation limit of the first filter is in a range of approximately 60-65 ⁇ m.
  • the separation limit of the second filter is in the range of approximately 40 ⁇ m

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Filtration Of Liquid (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

L'invention concerne un filtre comprenant au moins un élément filtrant sensiblement rectangulaire (2) et au moins un élément support sensiblement rectangulaire (3), monté comme élément support sur l'élément filtrant, les éléments reliés sont pliés en étoile et sont reliés de manière étanche à leurs extrémités en contact (9), les faces du filtre présentant un élément de recouvrement à effet étanchéifiant.
PCT/EP1997/003076 1996-06-20 1997-06-12 Filtre WO1997048470A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP10502222A JP2000512206A (ja) 1996-06-20 1997-06-12 フィルタ
BR9709846A BR9709846A (pt) 1996-06-20 1997-06-12 Filtro e dispositivo para filtragem de líquidos

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19624523A DE19624523A1 (de) 1996-06-20 1996-06-20 Filter
DE19624523.0 1996-06-20

Publications (2)

Publication Number Publication Date
WO1997048470A2 true WO1997048470A2 (fr) 1997-12-24
WO1997048470A3 WO1997048470A3 (fr) 1998-03-12

Family

ID=7797411

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1997/003076 WO1997048470A2 (fr) 1996-06-20 1997-06-12 Filtre

Country Status (9)

Country Link
JP (1) JP2000512206A (fr)
KR (1) KR20000022027A (fr)
BR (1) BR9709846A (fr)
CA (1) CA2259173A1 (fr)
CZ (1) CZ422898A3 (fr)
DE (1) DE19624523A1 (fr)
IL (1) IL121086A0 (fr)
WO (1) WO1997048470A2 (fr)
ZA (1) ZA975280B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6488845B1 (en) * 1999-08-12 2002-12-03 Purolator Products Na, Inc. Oil filter unit with quick-drain valve actuator
US6896803B2 (en) 2003-03-28 2005-05-24 Arvin Technologies, Inc. Filter apparatus and associated method
US7708147B2 (en) 2004-11-15 2010-05-04 Purolator Filters Na Llc Fluid filter assembly with notched case

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19806929A1 (de) * 1998-02-19 1999-08-26 Knecht Filterwerke Gmbh Dichteinrichtung für ein Ringfilter in einem Filtergehäuse
DE19813319A1 (de) * 1998-03-26 1999-09-30 Knecht Filterwerke Gmbh Ringförmige Kunststoff-Endscheibe aus Polyamid für ein Ringfilter
DE29816629U1 (de) * 1998-09-16 2000-02-03 Hengst Walter Gmbh & Co Kg Luftfilter
FR2787036B1 (fr) * 1998-12-14 2002-01-25 Filtrauto Filtre a liquide muni de moyens d'etancheite
DE10001259A1 (de) * 2000-01-14 2001-07-19 Hydac Filtertechnik Gmbh Filtervorrichtung
DE10026437A1 (de) * 2000-05-29 2001-12-06 Mann & Hummel Filter Filtereinrichtung
DE10153642B4 (de) * 2000-11-16 2009-08-27 Daimler Ag Filterelement und Verfahren zur Herstellung eines Filterelements
DE10248907B4 (de) * 2002-10-19 2013-08-22 Mann + Hummel Gmbh Filtereinrichtung, insbesondere zur Flüssigkeitsfilterung in Brennkraftmaschinen
US7441664B2 (en) * 2003-05-23 2008-10-28 Pur Water Purification Products Inc. Water treatment devices and cartridges therefor
WO2005016488A1 (fr) * 2003-08-05 2005-02-24 Filtertek S.A. Filtre, en particulier filtre a carburants et similaire
US8215492B2 (en) 2003-09-18 2012-07-10 Pur Water Purification Products, Inc. Water treatment devices and cartridges therefor
US8123942B2 (en) 2004-08-18 2012-02-28 Assion Norbert M Liquid filter assembly
EP2139577B1 (fr) * 2007-03-22 2013-11-27 Norbert M. Assion Ensemble de filtre a liquide
DE102015003101A1 (de) * 2015-03-11 2016-09-15 Mann + Hummel Gmbh Filterelement
US20180264383A1 (en) * 2015-09-24 2018-09-20 Cummins Filtration Ip, Inc. System and method for oil filtration in bypass mode

Citations (4)

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Publication number Priority date Publication date Assignee Title
GB880812A (en) * 1958-01-15 1961-10-25 Gen Motors Ltd Improvements in or relating to filters for fluids
DE2311854A1 (de) * 1972-03-11 1973-09-20 Gen Motors Ltd Fluid-filteranordnung
US4878930A (en) * 1984-03-15 1989-11-07 W. L. Gore & Associates, Inc. Filter cartridge
US5114508A (en) * 1984-12-24 1992-05-19 Tokuya Miyagi Filter element and its production

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Publication number Priority date Publication date Assignee Title
DE1726591U (de) * 1955-04-23 1956-07-19 Mann & Hummel Filter Filter, insbesondere luftfilter.
US3543940A (en) * 1968-08-14 1970-12-01 Industrial Filter Pump Mfg Co Filter construction
DE2034669A1 (de) * 1970-07-13 1972-01-27 Purolator Filter GmbH, 7110 Ohringen Filter mit einem zickzackförmig gefaltetem Filterpapierstreifen
US3793692A (en) * 1972-12-12 1974-02-26 American Air Filter Co Fluid treating filter
FR2426487A1 (fr) * 1978-05-22 1979-12-21 Ouest Cie Cartouche de filtration
SE467471B (sv) * 1987-02-16 1992-07-20 Stenhex Ab Anordning foer filtrering och vaermevaexling
DE4039288C2 (de) * 1990-12-08 1997-09-18 Knecht Filterwerke Gmbh Filtereinsatz für insbesondere Gasfilter
DE9113531U1 (de) * 1991-10-30 1991-12-19 W.L. Gore & Associates Gmbh, 8011 Putzbrunn Filterpatrone
DE4201559A1 (de) * 1992-01-22 1993-07-29 Schwaebische Huettenwerke Gmbh Material fuer filter, insbesondere oel-, benzin- oder dieselfilter von kraftfahrzeugen
DE4242513C2 (de) * 1992-12-16 1997-02-06 Opel Adam Ag Ölwanne für eine Brennkraftmaschine
DE4310234C1 (de) * 1993-03-30 1994-08-18 Argo Feinmechanik Rücklauffilter für Flüssigkeiten
DE4327368A1 (de) * 1993-08-14 1995-02-16 Minnesota Mining & Mfg Filter zum Filtern einer Fluidströmung
DE9403669U1 (de) * 1994-03-07 1994-05-26 Ing. Walter Hengst GmbH & Co KG, 48147 Münster Filtereinsatz, insbesondere für Öl- oder Kraftstoffilter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB880812A (en) * 1958-01-15 1961-10-25 Gen Motors Ltd Improvements in or relating to filters for fluids
DE2311854A1 (de) * 1972-03-11 1973-09-20 Gen Motors Ltd Fluid-filteranordnung
US4878930A (en) * 1984-03-15 1989-11-07 W. L. Gore & Associates, Inc. Filter cartridge
US5114508A (en) * 1984-12-24 1992-05-19 Tokuya Miyagi Filter element and its production

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6488845B1 (en) * 1999-08-12 2002-12-03 Purolator Products Na, Inc. Oil filter unit with quick-drain valve actuator
US6896803B2 (en) 2003-03-28 2005-05-24 Arvin Technologies, Inc. Filter apparatus and associated method
US7708147B2 (en) 2004-11-15 2010-05-04 Purolator Filters Na Llc Fluid filter assembly with notched case

Also Published As

Publication number Publication date
ZA975280B (en) 1998-01-14
DE19624523A1 (de) 1998-01-02
BR9709846A (pt) 1999-08-10
IL121086A0 (en) 1997-11-20
JP2000512206A (ja) 2000-09-19
WO1997048470A3 (fr) 1998-03-12
KR20000022027A (ko) 2000-04-25
CZ422898A3 (cs) 1999-06-16
CA2259173A1 (fr) 1997-12-24

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