WO2012104221A1 - Filtre interchangeable et tête de filtre - Google Patents

Filtre interchangeable et tête de filtre Download PDF

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Publication number
WO2012104221A1
WO2012104221A1 PCT/EP2012/051354 EP2012051354W WO2012104221A1 WO 2012104221 A1 WO2012104221 A1 WO 2012104221A1 EP 2012051354 W EP2012051354 W EP 2012051354W WO 2012104221 A1 WO2012104221 A1 WO 2012104221A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
fluid passage
central
seal
cover
Prior art date
Application number
PCT/EP2012/051354
Other languages
German (de)
English (en)
Inventor
Martin Traublinger
Original Assignee
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 Mann+Hummel Gmbh filed Critical Mann+Hummel Gmbh
Priority to DE212012000042U priority Critical patent/DE212012000042U1/de
Publication of WO2012104221A1 publication Critical patent/WO2012104221A1/fr

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
    • B01D27/08—Construction of the casing
    • 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
    • B01D35/31—Filter housing constructions including arrangements for environmental protection, e.g. pressure resisting features

Definitions

  • the invention relates to an exchangeable filter of a filter for fluids, in particular oil or fuel, an internal combustion engine, in particular of a motor vehicle, with a filter housing, which has a filter pot and a filter cover, and the filter cover a central cover fluid passage and at least one eccentric cover Fluid passage, and the central lid fluid passage is configured such that in it a connection piece of a filter head of the filter can be introduced by means of a rotary and / or plug connection, and in the filter housing, a filter element is arranged, which the eccentric lid fluid passage of the central lid fluid passage, and the filter element has a central element fluid passage which is coaxial with the central lid fluid passage and the filter element has an annular seal coaxial with the element fluid passage.
  • the invention further relates to a filter head of a filter for fluids, in particular oil or fuel, an internal combustion engine, in particular of a motor vehicle, with a connection piece with an external thread for screwing into an internal thread of a central cover fluid passage of a replaceable filter, wherein the connecting piece in the region has free end outside the external thread a cylindrical sealing area for a ring seal of the replaceable filter.
  • a known from the market replaceable filter for engine oil of an internal combustion engine has a filter housing in which a coaxial filter element is arranged.
  • a central oil outlet for the engine oil is arranged in a filter cover of the filter housing.
  • the oil outlet has an internal thread with which the replaceable filter can be screwed onto a corresponding screw-on base of a filter head in the oil circuit of the internal combustion engine.
  • Radially outside the oil outlet a large number of oil inlets are arranged eccentrically in the filter cover.
  • the filter element separates the oil inlets from the oil outlet.
  • the engine oil to be cleaned flows via the oil inlets into an inlet space in the filter housing which radially outwardly transitions the filter element. gives.
  • the engine oil flows through the filter element radially from outside to inside in an interior of the filter element. From the interior of the filter element, the filtered engine oil on the clean side flows out of the filter housing through the oil outlet.
  • an annular seal is fixed, which is arranged coaxially with the oil outlet and the frontal opening of the interior of the filter element. The ring seal seals against a circumferential sealing surface of the mounting base. With the ring seal the clean side of the filter element inside the filter housing is separated from the raw side.
  • the invention has for its object to design a replaceable filter and a filter head of a filter of the type mentioned, in which a protection against contamination of an interior, in particular the clean side of the filter element after its manufacture, when installed in the filter housing, at be improved transport, storage and assembly on the filter head. Furthermore, the separation of the clean side of the raw side of the filter element should be improved.
  • a closure stopper the maximum outer diameter of which is smaller than the diameter of the central lid fluid passage, for closing the central element fluid passage and the central lid fluid passage is arranged on the filter element and through the central lid Fluid passage is removable .
  • the element fluid passage is simply preferably already sealed immediately after the production of the filter element with a sealing plug.
  • a sealing plug can remain in the element fluid passage, in particular for storage and transport purposes, until the replaceable filter is to be mounted on the filter head.
  • a sealing plug By use it is also not necessary for a sealing plug to completely shrink the replaceable filter for storage or transport purposes, in particular in foil, or to provide it with a cover which extends over the entire cover side of the replaceable filter, as is the case with replaceable filters known from the prior art to prevent dirt entry.
  • the replaceable filter according to the invention only the central element fluid passage is closed by the lid fluid passage with the sealing plug.
  • To install the replaceable filter on the filter head of the plug is pulled out through the central lid fluid passage, so that access to the interior of the filter element is released.
  • the replaceable filter can then be plugged onto the connecting piece.
  • the cover fluid passage an internal thread and the connecting piece on an external thread, so that the replaceable filter can be screwed easily and again detachably on the connection piece.
  • the sealing plug can be arranged in a seal holder of a ring seal for sealing against the connecting piece for the purpose of separating the clean side of the filter element from the raw side, which is fixed coaxially to the element fluid passage on the filter element.
  • the sealing plug can be stably held on the filter element by means of the seal holder. It is possible to insert the sealing plug in the already mounted ring seal, which then seals the element fluid passage against the sealing plug. In the event that the ring seal at a later date, in particular immediately before mounting the replaceable filter is mounted on the filter head, the plug can also be inserted into the empty seal holder.
  • the filter element can be manufactured, stored and transported separately from the filter housing with the sealing plug and with the optionally mounted ring seal.
  • the seal holder ensures a secure fit and prevents the ring seal from being lost or displaced when transporting the filter element or when installing the replaceable filter.
  • a circumferential sealing surface of the connecting piece and the ring seal are in contact with each other.
  • the ring seal forms a reliable seal on the clean side opposite the raw side.
  • the central cover fluid passage and the element fluid passage are fluid outlets which are located on the clean side of the filter element, the ring seal seals directly on the clean side. If the replaceable filter is connected to the connecting piece with a screw connection, the screw thread is shifted from the clean side to the raw side of the filter element by using the ring seal, without the design principle of the replaceable filter having to be changed.
  • the interior of the filter element is closed to the raw side. There can be no uncleaned fluid, which can adhere in particular to the filter head, get into the interior of the filter element.
  • the ring seal prevents fluid, which can leak from the raw side via the threads between the connection piece and the filter cover, into the interior of the filter element.
  • the seal holder protrude into an interior of the filter element.
  • the ring seal can thus always be arranged outside protected in the interior of the filter element without further measures, especially during manufacture, storage and transport.
  • the filter element may have an end plate on which the closure stopper arranged, in particular the seal holder is attached.
  • the seal holder is integrally connected to the end plate, so that the seal holder can be made in one operation with the end plate. In this way, the number of components and the production cost is reduced.
  • the ring seal may be mounted to the seal retainer after fabrication of the endplate and later attached to the filter element together with the endplate.
  • the seal holder may have a rotationally symmetrical, the element fluid passage coaxial wall and the ring seal may be arranged in the region of the free edge of the seal holder on its side facing away from the filter cover.
  • the ring seal with respect to the end face of the filter element can be easily offset axially inwardly.
  • the coaxial wall also serves as a guide and centering aid for the sealing plug and the connecting piece. In a coaxial wall, bordered space can be easily and stably plugged a stopper.
  • the wall may be bent, in particular stepped, radially inwardly and axially to the filter element with respect to the central cover fluid passage, such that the wall defines an annulus between the filter cover and the ring seal, and the ring seal may be disposed in a portion of the smallest diameter seal holder.
  • unpurified fluid which is stripped off when connecting the replaceable filter with the ring seal from the sealing surface of the connecting piece, can be collected in the annulus.
  • uncleaned fluid which can seep through any threads of the connecting piece from the outside of the filter cover, be collected in the annulus.
  • the inner diameter of the seal holder in particular the ring seal, be smaller than the inner diameter of the central lid fluid passage, such that the closure plug whose outer diameter is selected so that it is sealingly inserted into the seal holder, in particular the ring seal can be moved through the central lid fluid passage.
  • the closure plug can be inserted into the element fluid passage, where it remains in the filter housing during installation of the replaceable filter element.
  • the stopper Prior to mounting to the filter head, the stopper can simply be pulled out through the central lid fluid passageway. The interior of the filter element is protected in this way from a very early assembly phase to the cultivation of the replaceable filter to the filter head from contamination and roh wornem fluid.
  • the replaceable filter is provided with an additive container, which is arranged in the interior of the filter element and is filled with an additive.
  • an additive that is gradually released in the operation of the replaceable filter in the oil flowing through the replaceable filter to improve the properties of the oil, for. B. harmless over time to accumulate in the oil pollutants.
  • the additive container has an additive container opening.
  • the closure plug is designed such that the additive container opening is also closed by the closure plug, so that it can be prevented that the additive can pass from the additive container into the interior during the transport of the replaceable filter through the additive container opening.
  • the object is further achieved by the filter head, characterized in that a largest outer diameter of the sealing region is smaller than a core diameter of the external thread.
  • the connection piece is therefore stepped.
  • the ring seal of the replaceable filter element can then be designed so that it has a significantly smaller inner diameter than the thread of the central cover fluid passage. Characterized an annular space is limited by the radially outer peripheral surface of the connecting piece and the seal holder, which serves as a compensation chamber for fluid during assembly of the replaceable filter to the filter head.
  • Figure 1 shows schematically a longitudinal section of an exchangeable filter which is mounted on a filter head of an oil circuit of an internal combustion engine
  • FIG. 2 shows schematically the replaceable filter from FIG. 1;
  • FIG. 3 shows schematically the replaceable filter from FIGS. 1 and 2, in which a lid outlet and an element outlet are closed with a sealing plug.
  • FIG. 1 a replaceable filter 10 is shown for engine oil in the longitudinal section.
  • the replaceable filter 10 is attached to a filter head 12 of a filter of an engine oil line of an internal combustion engine of no further interest here. screwed.
  • the replaceable filter 10 has a pot 14 and a lid 16.
  • the pot 14 together with the lid 16 forms a housing 18.
  • the pot 14 is connected to the lid 16 via a liquid-tight flared connection.
  • a seal 20 is arranged in a bead.
  • the lid 16 a plurality of inlet openings 21 are arranged distributed, through which the engine oil to be purified can flow into the replaceable filter 10. Furthermore, the lid 16 has a centrally located lid outlet 24, which has an internal thread 25 for fastening the replaceable filter 10 to an external thread 26a of a cylindrical connecting piece 26. The lid outlet 24 and the connection piece 26 are coaxial with an imaginary screw-in axis 42 of the replaceable filter 10.
  • the connecting piece 26 is part of the filter head 12.
  • the radially outer circumferential side of the connecting piece 26 is stepped.
  • the external thread 26a is arranged on the filter head 12 facing side of the connecting piece 26 .
  • the outer diameter of the sealing portion 26b is significantly smaller than the core diameter of the external thread 26a.
  • a filter element 28 is arranged in the interior of the housing 18.
  • the filter element 28 separates the inlet openings 22 sealingly from the lid outlet 24.
  • the filter element 28 has a filter medium 30, which is folded in a zigzag shape and closed in a star shape.
  • the filter medium 30 defines a radially inner interior 31 of the filter element 28, which forms the clean side of the filter element 28 with.
  • a bottom end plate 32 and a connecting end plate 34 are attached made of plastic.
  • the bottom end disk 32 closes the inner space 31 on the end face of the filter element 28 facing the bottom of the housing 18.
  • the bottom end disk 32 is supported by support elements 36 against a pot bottom of the pot 14.
  • the Ranendone 34 is formed substantially as an annular disc whose radially inner portion is stepped several times. A central opening The connecting end disk 34 forms an element outlet 38 which is coaxial with the lid outlet 24 and through which the sealing section 26b of the connecting piece 26 passes. Radially from outside to inside, the connecting end disk 34 is first formed into a cylindrical supporting collar 40, which extends axially away from the inner space 31 to the screw-in axis 42. The support collar 40 surrounds the lid outlet 24 and supports the filter element 28 against the underside of the lid 16.
  • the Anschlußendin 34 extends to form a seal holder 50 a piece radially to the Einschraubachse 42 inwards to extend axially into the inner space 31 following a 90 ° bend in a total cylindrical shape.
  • the free end of the cylindrical portion is bent by 90 ° radially inwardly and forms a support portion 47 for a ring seal 48. in the area of the support portion 47 seal holder 50 had its smallest diameter.
  • the region of the connecting end disk 34 from the radially inner side of the support collar 40 to the support section 47 forms a stepped wall 44 coaxial with the screw-in axis 42.
  • the wall 44 defines an annular space 46 between the cover 16 and the annular seal 48.
  • the ring seal 48 is held between the support portion 47 and a support ring disc 52.
  • the support ring disc 52 and the support portion 47 form a kind of sealing groove, in which the ring seal 48 is held in the axial direction against displacement.
  • the ring seal 48 seals the Anschlußendopathy 34 in the region of the element outlet 38 against the sealing portion 26b of the connecting piece 26 from. In this way, the clean-side interior 31 of the filter element 28 is separated from a raw side 54.
  • the raw side 54 is formed by the region surrounding the filter medium 30 radially and the space located between the connection-side end face of the filter element 28 and the cover 16.
  • a sealing plug 56 is provided, which is shown in Figure 3.
  • the sealing plug 56 closes the lid outlet 24 and the element outlet 38.
  • the sealing plug 56 is a stepped cylinder with a lid closure portion 56a and an element closure portion 56b.
  • the outer diameter of the lid closure portion 56a is slightly smaller than the inner diameter of the inner thread 25 of the lid outlet 24.
  • the outer diameter of the element closure portion 56b is approximately equal to the inner diameter of the ring seal 48, so that the annular seal 48 sealingly abuts the element closure portion 56b and no dirt or oil in the interior 31 can get.
  • the filter medium 30 is first folded in a manner not of interest here and circumferentially closed.
  • the terminal end disk 34 is molded with the seal holder 50.
  • the ring seal 48 is disposed in the seal holder 50.
  • the bottom end disk 32 and the terminal end disk 34 are fixed to the respective end faces of the filter medium 30.
  • the closure plug 56 is plugged to seal the element outlet 38 in the seal holder 50 with the ring seal 48 so that it seals against the ring seal 48, the interior 31.
  • the sealing plug 56 can also be inserted into the seal holder 50 before the connection end disk 34 is fastened to the end face of the filter medium 30. It is also possible to install the ring seal 48 at a later time after the closure plug 56 has been removed again, for example immediately before mounting on the filter head 12. In this case, the closure plug 56 can be inserted directly into the seal holder 50.
  • the sealing plug 56 may be made of an elastic material, so that the sealing effect when closing the element outlet 38 is improved.
  • the filter element 28 is inserted with the bottom end plate 32 ahead in the filter cup 14.
  • the lid 16 is placed on the pot 14 with the lid closure portion 56 a of the sealing plug 56 passed through the lid outlet 24.
  • the closure plug 56 thus also closes the lid outlet 24.
  • the sealing plug 56 is pulled out through the cover outlet 24, so that the cover outlet 24 and the element outlet 38 are freely accessible.
  • the replaceable filter 10 is inserted with the cover 16 on the front of the connecting piece 26.
  • the sealing portion 26b acts as a guide and centering aid for the replaceable filter 10.
  • the sealing portion 26b slides along the annular seal 48, wherein the inner space 31 is sealed against the raw side 54. It can not get dirty engine oil, which may still be in the region of the connection piece 26, in the interior 31 of the filter element 28.
  • the annular space 46 acts as a collecting space in which polluted engine oil, which is stripped off by the annular seal 48 from the sealing portion 26b, is collected.
  • the replaceable filter 10 is further provided with an additive container 60, which is arranged in the interior 31 of the filter element 28 and filled with an additive 61.
  • the additive container 61 has an additive container opening 62.
  • the closure plug 56 closes the additive container opening 62 in order to prevent the additive 61 from passing through the additive container opening 62 from the additive container 61 into the interior space 31.
  • the additive container 60, the additive 61 and the additive container opening 62 are indicated in FIG. 3 by way of example only by dashed lines.
  • the invention is not limited to internal combustion engines of motor vehicles. Rather, it can also be used in other types of internal combustion engines, such as industrial engines.
  • the invention can also be used for other types of liquid fluids, such as fuel or water, instead of filtering motor oil.
  • zigzag shape folded and star-shaped closed filter medium 30 and a different type of filter medium may be provided which has a preferably coaxial interior. In principle, it is also possible to provide a filter medium which is angular in its outer contour.
  • the bottom end plate 32 and / or the Anschlußend within 34 may instead of plastic also from a different material, for example, be metal.
  • a different type of rotary and / or plug connection for example a bayonet-type connection, may be provided for fastening the replaceable filter 10 on the filter head 12.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

L'invention concerne un filtre interchangeable (10) d'un filtre pour fluides, en particulier huile ou carburant, d'un moteur à combustion interne, en particulier d'un véhicule automobile, comprenant un carter de filtre (18) qui présente un pot de filtre (14) et un couvercle de filtre (16). Le couvercle de filtre (16) présente un passage central (24) pour fluide et au moins un passage excentré (22) pour fluide. Le passage central (24) pour fluide dans le couvercle est conçu de telle manière qu'une tubulure de raccordement d'une tête du filtre puisse y être insérée au moyen d'une liaison par rotation et/ou par emboîtement. Un élément filtrant (28), qui sépare le passage excentré (22) pour fluide ménagé dans le couvercle du passage central (24) pour fluide ménagé dans le couvercle, est disposé dans le carter de filtre (18). L'élément filtrant (28) présente un passage central (38) pour fluide qui est coaxial au passage central (24) pour fluide ménagé dans le couvercle. Un bouchon de fermeture (56) dont le diamètre extérieur maximal est inférieur au diamètre du passage central (24) pour fluide ménagé dans le couvercle est disposé sur l'élément filtrant (28) pour fermer le passage central (38) pour fluide ménagé dans l'élément et le passage central (24) pour fluide ménagé dans le couvercle et peut être enlevé en passant par le passage central (34) pour fluide ménagé dans le couvercle.
PCT/EP2012/051354 2011-01-31 2012-01-27 Filtre interchangeable et tête de filtre WO2012104221A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE212012000042U DE212012000042U1 (de) 2011-01-31 2012-01-27 Wechselfilter und Filterkopf eines Filters

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110009925 DE102011009925A1 (de) 2011-01-31 2011-01-31 Wechselfilter und Filterkopf eines Filters
DE102011009925.5 2011-01-31

Publications (1)

Publication Number Publication Date
WO2012104221A1 true WO2012104221A1 (fr) 2012-08-09

Family

ID=45571508

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/051354 WO2012104221A1 (fr) 2011-01-31 2012-01-27 Filtre interchangeable et tête de filtre

Country Status (2)

Country Link
DE (2) DE102011009925A1 (fr)
WO (1) WO2012104221A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106168146A (zh) * 2016-08-31 2016-11-30 新乡市科瑞达过滤净化技术有限公司 一种新型机油滤芯
DE102015009293A1 (de) 2015-07-21 2017-01-26 Mann+Hummel Gmbh Filterelement und Filtersystem
CN108325262A (zh) * 2018-03-29 2018-07-27 飞龙精工科技(苏州)有限公司 一种集装箱储能电池电堆过滤器

Families Citing this family (8)

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DE102013011615A1 (de) * 2013-07-12 2015-01-29 Mann + Hummel Gmbh Spin-On Filter für eine Filtervorrichtung für Fluid, Filtervorrichtung und Filterkopf einer Filtervorrichtung
DE102013011622A1 (de) 2013-07-12 2015-01-15 Mann + Hummel Gmbh Spin-On Filter für eine Filtervorrichtung für Fluid, Filtervorrichtung und Filterkopf einer Filtervorrichtung
DE102013011619A1 (de) 2013-07-12 2015-01-15 Mann + Hummel Gmbh Spin-On Filter für eine Filtervorrichtung für Fluid, Filtervorrichtung und Filterkopf einer Filtervorrichtung
CN106470747B (zh) * 2014-06-27 2019-09-03 曼·胡默尔有限公司 过滤器装置、特别是液体过滤器
DE102015220686B4 (de) * 2015-10-22 2017-08-17 Robert Bosch Gmbh Filtermodul
EP3777988B1 (fr) 2017-08-11 2024-01-17 Donaldson Company, Inc. Dispositif de traitement de fluide amovible
DE112019000604T5 (de) 2018-01-31 2020-10-15 Cummins Filtration Ip, Inc. Systeme und verfahren zum sichern eines dichtungselements an einer filterbaugruppe
IT201900017198A1 (it) * 2019-09-25 2021-03-25 O M R T S R L Flangia di accoppiamento di un’unità filtrante e unità filtrante comprendente detta flangia

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US5447627A (en) * 1993-11-22 1995-09-05 Dana Corporation Dual-flow filter assembly with a center-tube sealing grommet
GB2342302A (en) * 1998-10-10 2000-04-12 Dario Pellegrino Loffredo Cap for sealing used oil filter
US6471071B1 (en) * 2000-05-09 2002-10-29 Honeywell International, Inc. Universal grommet seal for spin-on type filters
US20070251074A1 (en) * 2005-12-28 2007-11-01 Adan Reinosa Method and apparatus to promote used oil filter recycling and biological control of their residual oil

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US5211846A (en) * 1990-07-30 1993-05-18 Pleatco Electronic & Filter Corp. Replacement filter cartridge assembly

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Publication number Priority date Publication date Assignee Title
US5447627A (en) * 1993-11-22 1995-09-05 Dana Corporation Dual-flow filter assembly with a center-tube sealing grommet
GB2342302A (en) * 1998-10-10 2000-04-12 Dario Pellegrino Loffredo Cap for sealing used oil filter
US6471071B1 (en) * 2000-05-09 2002-10-29 Honeywell International, Inc. Universal grommet seal for spin-on type filters
US20070251074A1 (en) * 2005-12-28 2007-11-01 Adan Reinosa Method and apparatus to promote used oil filter recycling and biological control of their residual oil

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015009293A1 (de) 2015-07-21 2017-01-26 Mann+Hummel Gmbh Filterelement und Filtersystem
DE102015009293B4 (de) 2015-07-21 2018-11-29 Mann+Hummel Gmbh Filtersystem und dessen Verwendung
CN106168146A (zh) * 2016-08-31 2016-11-30 新乡市科瑞达过滤净化技术有限公司 一种新型机油滤芯
CN108325262A (zh) * 2018-03-29 2018-07-27 飞龙精工科技(苏州)有限公司 一种集装箱储能电池电堆过滤器
CN108325262B (zh) * 2018-03-29 2023-10-03 飞龙精工科技(苏州)有限公司 一种集装箱储能电池电堆过滤器

Also Published As

Publication number Publication date
DE102011009925A1 (de) 2012-08-02
DE212012000042U1 (de) 2013-09-09

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