WO2012168123A1 - Filterelement für eine filtereinrichtung eines kraftfahrzeuges und filtereinrichtung mit dem filterelement - Google Patents
Filterelement für eine filtereinrichtung eines kraftfahrzeuges und filtereinrichtung mit dem filterelement Download PDFInfo
- Publication number
- WO2012168123A1 WO2012168123A1 PCT/EP2012/060158 EP2012060158W WO2012168123A1 WO 2012168123 A1 WO2012168123 A1 WO 2012168123A1 EP 2012060158 W EP2012060158 W EP 2012060158W WO 2012168123 A1 WO2012168123 A1 WO 2012168123A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- filter
- filter medium
- filter element
- support body
- longitudinal axis
- Prior art date
Links
- 238000002485 combustion reaction Methods 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 20
- 230000008878 coupling Effects 0.000 claims description 18
- 238000010168 coupling process Methods 0.000 claims description 18
- 238000005859 coupling reaction Methods 0.000 claims description 18
- 210000002105 tongue Anatomy 0.000 claims description 12
- 239000000969 carrier Substances 0.000 claims 1
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 230000006378 damage Effects 0.000 description 5
- 238000001746 injection moulding Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- B01D29/50—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/04—Supports for the filtering elements
- B01D2201/0415—Details of supporting structures
-
- 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
- B01D2201/40—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
- B01D2201/4084—Snap or Seeger ring connecting means
Definitions
- the present invention relates to a filter element for a filter device of a motor vehicle, in particular for the filtration of oil of the oil circuit of an internal combustion engine of a motor vehicle, wherein the filter element, in particular a star-shaped folded filter medium, which surrounds a along a Filtermedium- longitudinal axis extending inner cavity and at least one sectionally arranged in the inner cavity of the filter medium supporting body, wherein the support body comprises at least two separate, along the filter medium longitudinal axis successive support body parts which are fixedly connected to each other by means of a connecting means along the filter medium longitudinal axis. Furthermore, the invention relates to a filter device with such a filter element.
- EP 835 158 B1 shows a filter element which has a multipart support body in the form of a support tube and a filter medium in the form of a star-shaped folded filter paper.
- the support tube is pushed into the provided with end plates, star-shaped folded filter paper, with a seal between the end plates and the support tube comes to conditions.
- the support tube is constructed in two parts, so that it can be pushed from both sides into the star-shaped folded filter paper. In this case, the inwardly projecting ends of the two support tube parts collide, whereby a snap connection is closed, which axially connects the support tube parts together and thus fixes the support tube in the filter paper.
- a filter element which has a connecting device for the support body parts, by means of which the support body parts along the filter medium longitudinal axis fixedly connected to each other and are also rotatably connected to each other based on the filter medium longitudinal axis.
- the connecting device according to the invention is thus designed such that the supporting body parts are not only fixed in the axial direction but also a twisting torque can abut against the supporting body parts, without the supporting body parts being able to rotate relative to each other about the longitudinal axis of the filter medium or the connection of the supporting body parts can solve by the torque.
- the inventive design of the connecting device results from a relative rotational movement of the supporting body parts to the filter medium longitudinal axis non-detachable connection of the supporting body parts.
- torques in both directions of rotation of the support body parts are transmitted to the filter medium longitudinal axis relative to each other by the rotationally fixed connection.
- the support body together with the connecting device is formed so stiff that it is only slightly deformed under the action of a twisting torque which rests between the sen axial ends.
- the support body according to the invention can consequently also in the case of a filter Elementes with multi-part support body impairments of the filter medium by torsional moments which rest between the axial ends of the filter element can be avoided.
- the filter medium remains at least largely unencumbered by the Vercardmomente.
- the stable, axial connection of the support body parts prevents the filter medium from being pulled apart or compressed due to axial forces which may rest between the axial ends of the filter element.
- the anchoring of the support body parts is designed such that - once made - it is not releasable again. This ensures that the connection of the support body parts, neither by axial forces nor by torques that may occur during assembly, disassembly or use of the filter element is reopened.
- the multi-part support body is produced by injection molding and consists at least predominantly of plastic.
- the multi-part support body according to the invention is characterized in comparison to a one-piece support body in that the cost of materials in a one-piece support body is significantly higher due to limitations in injection molding than in a two-piece support body. Furthermore, with one-piece support bodies, no complex contours, such as undercuts, can be produced by injection molding.
- a multipart support body which is designed as a multi-part support tube or multi-part center tube.
- a support body part is associated with one end face of the filter medium and the other support body part with the other end face of the filter medium, and the connection device of the support body parts is arranged in the inner cavity of the filter medium.
- a support body part forms, for example, a lower part of a support tube and the other support body part an upper part of the support tube.
- the lower part is preferably much higher than the upper part.
- the lower part has a skeleton in its middle region. pe, a grid structure or a truss structure.
- the skeleton may include a number of first struts for support upon rotation in the first direction of rotation and a number of second struts for support upon rotation in the second direction of rotation.
- the struts are especially designed for the distribution of shear forces.
- the lower part in particular has a radial projection for supporting one end of a coupling spring, which is connected between the spring element and a filter housing.
- a filter element which on a support body part (eg., An upper part of a support tube) has a coupling device via which a torque from a housing-side coupling device in the axial end of the filter element can be introduced to thereby the filter element z.
- a support body part eg., An upper part of a support tube
- the support body-side and the housing-side coupling device cooperate with one another in a form-fitting manner in order to transmit the torque.
- the coupling device on the filter element and the housing-side coupling device is designed such that the filter element can be snapped by means of the coupling device with a housing part, in particular the housing cover.
- the filter element and the housing part form an easy-to-use assembly unit during assembly or replacement of the filter element.
- Manufacturing technology advantageous is an embodiment of the invention, in which the support body-side coupling device and the support body part in one piece, in particular as an injection molded part, are formed.
- the support-body-side coupling device is arranged at one end of the filter element, which in the mounted state of the filter element faces a rotationally sealable and openable filter housing cover, which in turn is provided with the housing-side coupling device.
- the filter element is rotated due to the interaction of the coupling means in rotation.
- the rotational movement can z. B. in the assembly of the Filter element for rotational positioning of the filter element in the housing, but also for gently inserting a filter-side seal in the housing or in a housing-side seal receiver.
- the coupling devices can, for. B. be designed as a crown and corresponding dome.
- a support body part designed as a lower part of a support tube may have a dome with which a crown can be coupled rotationally to the housing cover.
- the dome of the lower part on an insertion device for inserting the crown of the housing cover.
- the insertion device preferably has from inside to outside leading webs for inserting the crown in the dome.
- the introducer acts as an insertion aid through which the crown can be more easily inserted into the dome.
- the rotationally stable design of the connecting device according to the invention is of particular use if a sealing device is attached to one of the supporting body parts, by means of which the filter element can be sealingly applied to a filter housing of the filter device for sealing a clean area of a raw area.
- a sealing device is attached to one of the supporting body parts, by means of which the filter element can be sealingly applied to a filter housing of the filter device for sealing a clean area of a raw area.
- So z. B. a frictional engagement between the sealing elements of the sealing device and the housing-side sealing surfaces against rotation of the filter element in the filter housing.
- At least one sealing element carrier of the sealing device and the supporting body part are integrally formed, in particular as an injection molded part.
- the filter medium is largely rotationally coupled at least with respect to this support body part, ie for a relative rotational movement between the filter medium and this support body part only the friction between them has to be overcome.
- the filter medium can therefore maintain its shape during a rotation of the support body.
- a variant in which the support body parts are loosely inserted into the filter medium provided with end-side end disks, preferably with end disks in the form of film end disks, is particularly advantageous. This also results in an advantageous rotational decoupling of the filter medium with respect to both support body parts and the support body as a whole.
- connection device according to the invention z. B. be formed as adhesive, (ultra) welding and / or screw connection.
- the connecting device for connecting the support body parts with effect along the filter medium longitudinal axis but a snap connection or latching connection.
- a Stützköperteil is advantageously provided with locking tongues and the other support body part with corresponding to the locking tongues locking receptacles.
- the snap connection is preferably designed such that the support body parts to close the snap connection simply have to be inserted axially into one another.
- connection device has a plurality of drivers for the non-rotatable connection of the support body parts.
- latching tongues and latching receptacles corresponding to the other support body part are provided as part of the connection device on a support body part.
- the locking receptacles are arranged in the circumferential direction of the filter medium longitudinal axis between each driver, wherein the driver form a positive rotation for the latched in the respective locking receptacle locking tongue.
- the locking tongues and the driver in the closed state of the connecting device together form a flat shell-part surface.
- Another aspect of the invention relates to a filter device with a filter housing and a filter element interchangeably arranged in the filter element, which has above and below erläuerte features.
- Fig. 1 a schematic representation of an embodiment of a support tube before the connection of a lower part with an upper part of the support tube;
- FIG. 2 shows a schematic illustration of the embodiment of the support tube of FIG. 1 after connecting the lower part to the upper part;
- Fig. 3 is a longitudinal sectional view of a filter device with the support tube of Figure 2;
- Fig. 4 a schematic representation of a filter element with the support tube of Figure 2 and a star-shaped folded filter medium.
- the same reference numerals designate the same or functionally identical elements, unless indicated otherwise.
- Fig. 1 shows a schematic representation of an embodiment of a two-part support body in the form of a support tube 1 or medium roh res.
- the support tube 1 has two support tube parts. If the support tube 1 is installed as part of a filter device in the motor vehicle, the support tube 1 is arranged inversely as shown in Fig. 1 and in the other figures. For this reason, the support tube part arranged at the top in FIG. 1 in the installed state constitutes a lower part 5, which in FIG. 1 represents the lower support tube part of an upper part 4 of the support tube 1.
- Fig. 4 shows a filter element 21 in the form of a replaceable ring filter insert z. B. for a filter device 22 (indicated in Fig. 3) in the form of an oil filter with the support tube 1 of FIG. 1st
- the support tube 1 serves to support a filter medium 2.
- the filter medium 2 is designed as an annular filter bellows with zigzag folded filter paper, which surrounds an inner hollow space 19 extending along a filter medium longitudinal axis 18.
- a central longitudinal section of the support tube 1 is arranged in the inner cavity 19 of the filter medium 2 and serves there for the radial support of the filter medium 2 inwards.
- the support tube 1 and the filter medium 2 are arranged concentrically.
- the support tube longitudinal axis therefore coincides with the filter medium longitudinal axis 18.
- the multi-part support tube 1 has a connecting device 20, by means of which the lower part 5 and the upper part 4 along the filter medium longitudinal axis 18 and Stitzrohr- longitudinal axis are fixedly connected together.
- the lower part 5 and the upper part 4 by means of the connecting device 20 relative to the filter medium longitudinal axis 18 rotatably connected to each other.
- the two parts 4, 5 are so rotatably or rotationally fixed, that they are fixed at beticiansfeldem force required for installation and removal of the filter element 21 with each other and not rotate relative to each other.
- the connecting device 20 in the embodiment of Fig. 1 on a snap connection 6 is with locking tongues 1 1 and the upper part 4 with corresponding locking receptacles 12 for forming these snap Compound 6 provided.
- a plurality of drivers 10 is provided on the upper part 4.
- the driver 10 take the lower part 5 with a rotation of the upper part 4 and vice versa, so that the lower part 5 and the upper part 4 can not rotate relative to each other.
- a driver 10 On each side of a locking receptacle 12 on the upper part 4, a driver 10 is arranged.
- the upper part 4 of FIG. 1 has four locking receptacles 12 and therefore eight drivers 10th
- the lower part 5 is significantly higher than the upper part 4.
- the lower part 5 has in its central region a skeleton 14.
- the skeleton 14 has a number of first struts 15 for support in a rotation in the first direction of rotation and a number of second struts 16 for support in a Rotation in the second direction of rotation.
- the lower part 5 further has a radial projection 17 on which in the installed state of the filter element 21, one end of a between filter element 21 and housing 23 (Fig. 3) connected axial spring (not shown) is supported.
- 2 shows a schematic representation of the embodiment of the support tube 1 of FIG. 1 after connecting the lower part 5 to the upper part 4.
- the respective latching tongue 1 1 snapped into the respective latching receptacle 12 forms the two laterally of the latching tongue 1 1 arranged drivers 10 a flat shell-part surface 13 from. Overall, therefore, four such flat jacket partial surfaces 13 are uniformly distributed over the outer circumference of the support tube 1.
- the snap connection 6 between the lower part 5 and the upper part 4, in particular after the connection without destruction or without tools can not be released again. This ensures that the connection of the support tube parts 4, 5 neither by axial forces nor by torques which may occur during assembly, disassembly or use of the filter element 21 between the axial ends of the filter element 21, is opened again.
- FIG. 3 is a longitudinal sectional view of a filter device 22 with the embodiment shown in FIG. 2, wherein the housing 23 is only indicated and the filter medium 2 has been omitted for reasons of clarity.
- the upper part 4 of the support tube 1 is largely cup-shaped.
- a bottom 24 of the pot-shaped upper part 4 closes a (in Fig. 3 upper) portion of the inner cavity 19 of the filter medium 2 at the upper part 4 associated end face 34 (Fig. 4) of the filter medium 2 down.
- the cup-shaped upper part 4 forms a type Dom 8, in which a crown 25 of a housing cover 26 of a housing 23 can be inserted.
- the dome 8, in particular a plurality of webs 27 distributed on the inner circumference of the cup-shaped upper part 4, constitute a filter element-side coupling device.
- the upper part 4 is therefore provided in one piece with a filter element-side coupling device.
- the crown 25 forms a housing-side coupling device, which has a plurality of grooves 28 which cooperate positively with inserted crown 25 with the webs 27. Due to the interaction of the coupling devices, the filter element 21 is rotated during the rotational closure or opening of the housing cover 26 in the housing 23. In particular, the rotational movement of the filter element 21 serves to rotate a provided on the lower part 5 radial sealing means 29 relative to a lower housing part 30.
- the sealing device 29 has a sealing element carrier 31. Seal member carrier 31 and lower part 5 are integrally formed.
- the sealing element carrier 31 is provided with a closed lateral surface and at the same time serves as an outlet for filtered fluid.
- two O-rings 32 are arranged in circumferential grooves as radial sealing elements.
- the O-rings 32 abut radially on housing-side sealing surfaces for sealing a clean area (filtered fluid) from a raw area (fluid to be filtered) of the filter device 22.
- the dome 8 further comprises an insertion device 9, which is set up for insertion of the crown 25 on the housing cover 26.
- FIG. 4 shows a schematic representation of an embodiment of the filter element
- the lower part 5 is assigned to the front side 34 of the filter medium 2 and the upper part 4 to the front side 35 of the filter medium 2.
- the connecting device 20 is arranged in the inner cavity 19 of the filter medium 2.
- the support tube 1 is inserted into the end plate provided with filter medium 2. Serve as end disks ansich known Folienendharin 38, which seal the front side of the filter medium 2.
- the filter medium 2 is not glued to the support tube 1 or firmly connected in any other way. Rather, the support tube 1 is loosely inserted into the filter medium 2. Consequently, the filter medium 2 is largely rotationally coupled around the filter medium longitudinal axis 18 of the support tube 1, apart from the friction between the filter medium 2 and the support tube 1.
- the annular filter medium 2 is radially sealingly attached to the support tube 1 via the foil end discs 38.
- the film end disk 38 arranged at the top in FIG. 4 abuts the lower part 5 in a region between the radial projection 17 and a radial annular bead 36 (FIG. 3).
- the annular bead 36 engages behind the film end plate 38 and thereby prevents undesired sliding of the filter medium 2 from the support tube 1 in Figure 4 down. This results in an axial Schnschnappung the filter medium 2 on the support tube.
- the film end disk 38 which is arranged at the bottom in FIG. 4, abuts radially on an annular shoulder 37 (FIG. 3) of the upper part 4.
- the lower part 5 and the upper part 4 can initially be made separately.
- the lower part 5 is produced in particular by injection molding.
- the upper part 4 is produced in particular by injection molding.
- the lower part 5 and the upper part 4 are made of plastic.
- the lower part 5 and the upper part 4 can be made of any injection-moldable plastic.
- the lower part 4 and the upper part 5 are introduced at the end faces 34, 35 into the filter medium 2 provided with film end disks 38.
- the facing ends of the support tube parts 4, 5 are inserted into one another along the filter medium longitudinal axis 18 and thereby firmly connected. After connecting the lower part 5 and the upper part 4, these tools are not separable from each other again.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112012002417.6T DE112012002417B4 (de) | 2011-06-10 | 2012-05-30 | Filterelement für eine Filtereinrichtung eines Kraftfahrzeuges und Verwendung des Filterelements in der Filtereinrichtung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011106382.3 | 2011-06-10 | ||
DE102011106382A DE102011106382A1 (de) | 2011-06-10 | 2011-06-10 | Filterelement für eine Filtereinrichtung eines Kraftfahrzeuges und Filtereinrichtung mit dem Filterelement |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012168123A1 true WO2012168123A1 (de) | 2012-12-13 |
Family
ID=46201632
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2012/060158 WO2012168123A1 (de) | 2011-06-10 | 2012-05-30 | Filterelement für eine filtereinrichtung eines kraftfahrzeuges und filtereinrichtung mit dem filterelement |
Country Status (2)
Country | Link |
---|---|
DE (2) | DE102011106382A1 (de) |
WO (1) | WO2012168123A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014001787B4 (de) * | 2014-02-12 | 2021-01-21 | Mann+Hummel Gmbh | Filterelement mit einem hohlzylindrischen Filtermediumkörper |
DE102015217622A1 (de) * | 2015-09-15 | 2017-03-16 | Mahle Industriefiltration Gmbh | Filtereinrichtung für ein Kraftfahrzeug |
CN113088358B (zh) * | 2021-03-26 | 2022-06-24 | 中国石油大学(华东) | 一种外扩式气体过滤装置 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8907946U1 (de) * | 1988-06-29 | 1989-08-31 | Sartorius GmbH, 3400 Göttingen | Rohrförmiger Stützkörper für patronenförmige Filterelemente |
GB2247188A (en) * | 1990-08-25 | 1992-02-26 | Seitz Filter Werke | Filter disc support tube |
DE19631278A1 (de) * | 1996-08-02 | 1998-02-05 | Mann & Hummel Filter | Verschnapptes Mittelrohr |
EP0835158B1 (de) | 1995-06-17 | 1999-03-03 | Knecht Filterwerke Gmbh | Schmierölfilter für insbesondere verbrennungsmotoren |
US5906737A (en) * | 1997-05-01 | 1999-05-25 | Hoeppner; Michael A. | Filter core system |
DE19826032A1 (de) * | 1998-06-10 | 1999-12-16 | Hydac Filtertechnik Gmbh | Baukastensystem zum Aufbau von Filterelementen unterschiedlicher Baugrößen |
WO2001097949A1 (en) * | 2000-06-23 | 2001-12-27 | Pall Corporation | Filter assemblies |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3921369C2 (de) * | 1988-06-29 | 1998-10-15 | Sartorius Gmbh | Rohrförmiger Stützkörper für patronenförmige Filterelemente |
DE59201345D1 (de) * | 1991-03-28 | 1995-03-16 | Knecht Filterwerke Gmbh | Flüssigkeitsfilter, insbesondere schmierölfilter für verbrennungsmotoren. |
-
2011
- 2011-06-10 DE DE102011106382A patent/DE102011106382A1/de not_active Withdrawn
-
2012
- 2012-05-30 DE DE112012002417.6T patent/DE112012002417B4/de active Active
- 2012-05-30 WO PCT/EP2012/060158 patent/WO2012168123A1/de active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8907946U1 (de) * | 1988-06-29 | 1989-08-31 | Sartorius GmbH, 3400 Göttingen | Rohrförmiger Stützkörper für patronenförmige Filterelemente |
GB2247188A (en) * | 1990-08-25 | 1992-02-26 | Seitz Filter Werke | Filter disc support tube |
EP0835158B1 (de) | 1995-06-17 | 1999-03-03 | Knecht Filterwerke Gmbh | Schmierölfilter für insbesondere verbrennungsmotoren |
DE19631278A1 (de) * | 1996-08-02 | 1998-02-05 | Mann & Hummel Filter | Verschnapptes Mittelrohr |
US5906737A (en) * | 1997-05-01 | 1999-05-25 | Hoeppner; Michael A. | Filter core system |
DE19826032A1 (de) * | 1998-06-10 | 1999-12-16 | Hydac Filtertechnik Gmbh | Baukastensystem zum Aufbau von Filterelementen unterschiedlicher Baugrößen |
WO2001097949A1 (en) * | 2000-06-23 | 2001-12-27 | Pall Corporation | Filter assemblies |
Also Published As
Publication number | Publication date |
---|---|
DE112012002417B4 (de) | 2022-03-24 |
DE102011106382A1 (de) | 2012-12-13 |
DE112012002417A5 (de) | 2014-03-13 |
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