EP3148672A1 - Système de filtration et élément de filtration comportant un milieu filtrant en fibre de verre et un corps fritté - Google Patents

Système de filtration et élément de filtration comportant un milieu filtrant en fibre de verre et un corps fritté

Info

Publication number
EP3148672A1
EP3148672A1 EP15725364.2A EP15725364A EP3148672A1 EP 3148672 A1 EP3148672 A1 EP 3148672A1 EP 15725364 A EP15725364 A EP 15725364A EP 3148672 A1 EP3148672 A1 EP 3148672A1
Authority
EP
European Patent Office
Prior art keywords
filter
sintered body
glass fiber
filter element
filter medium
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP15725364.2A
Other languages
German (de)
English (en)
Inventor
Lars Spelter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mann and Hummel GmbH
Original Assignee
Mann and 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 and Hummel GmbH filed Critical Mann and Hummel GmbH
Publication of EP3148672A1 publication Critical patent/EP3148672A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2003—Glass or glassy material
    • B01D39/2017—Glass or glassy material the material being filamentary or fibrous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
    • B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1638—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being particulate
    • B01D39/1653—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being particulate of synthetic origin
    • B01D39/1661—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being particulate of synthetic origin sintered or bonded
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2027—Metallic material
    • B01D39/2031—Metallic material the material being particulate
    • B01D39/2034—Metallic material the material being particulate sintered or bonded by inorganic agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12—Special parameters characterising the filtering material
    • B01D2239/1216—Pore size
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12—Special parameters characterising the filtering material
    • B01D2239/1291—Other parameters

Definitions

  • Filter system and filter element with a glass fiber filter medium and a
  • the invention relates to a filter system and a filter element for filtering a fluid.
  • the filter system and the filter element are preferably used in motor vehicles, in particular for filtering fuel.
  • the filter element has a filter medium, which is arranged between two end disks of the filter element and which is folded in a star-shaped manner in a known manner.
  • the filter medium is formed as a sintered body formed of a plurality of metal fibers.
  • EP 1 000 649 A1 discloses a water cycle with a filter stage.
  • the filter stage has a cartridge with a barrier layer of sintered plastic.
  • a filter device for filtering a liquid of an internal combustion engine of a motor vehicle has become known.
  • the filter device has a filter housing and a filter element arranged in the filter housing.
  • an additional filter element is arranged in the region of the outlet.
  • the additional filter element has a filter body of sintered metal.
  • filter systems and filter elements have become known, which have a glass fiber filter medium.
  • Glass fiber filter media are chemically resistant and are particularly efficient at filtering debris, especially when filtering foreign bodies from fuels.
  • the glass fibers of such a glass fiber filter medium are known to be hard and brittle.
  • glass fiber constituents can detach from the glass fiber filter medium and contaminate the filtered fluid.
  • damage to a high-pressure pump or the injection nozzle may occur due to such glass fiber parts or glass fiber fragments.
  • an additional filter medium for retaining the possibly dissolving components of the glass fiber filter medium could be provided.
  • the additional filter medium due to the sharp-edged components of the glass fiber filter medium, the additional filter medium must have a sufficiently thick cellulose layer or the finest synthetic fibers.
  • such a constructed additional filter medium increases the flow resistance of the filter system or the filter element disadvantageously.
  • the service life of the filter system or the filter element can be reduced by the additional filter element.
  • errors in the processing of the additional filter medium in particular during embossing and folding, can lead to a failure of the blocking function of the additional filter medium.
  • the object of the invention is therefore to provide a filter system or a filter element which reliably prevents retention of components of a glass fiber filter medium of the filter system or of the filter element without having to integrate an additional layer into the filter medium.
  • the object relating to the filter system is achieved by a filter system having the features of patent claim 1.
  • the claims 2 to 8 relate to advantageous developments of the filter system.
  • An inventive filter element has the features specified in claim 9 features.
  • the solution according to the invention thus comprises a filter system for filtering a fluid, with a filter housing and a filter element arranged in the filter housing, the filter element having a glass fiber filter medium and the filter system has a sintered body fluidically downstream of the glass fiber filter medium for retaining constituents of the glass fiber filter medium in the fluid.
  • the sintered body increases the flow resistance only insignificantly. However, in case of dissolving a constituent of the glass fiber filter medium, wedging of this constituent occurs in the sintered body. Damage to the filter system fluidly downstream component can be reliably avoided.
  • the pore size or the average pore size of the sintered body according to the invention is preferably greater than the cross section of the components of the glass fiber filter medium to be retained.
  • the pores can have a clear width between 15 ⁇ m and 15 ⁇ m, in particular between 20 ⁇ m and 10 ⁇ m, preferably between 25 ⁇ m and 105 ⁇ m, particularly preferably between 30 ⁇ m and 100 ⁇ m.
  • the sintered body can be flowed through in the direction of its longitudinal axis and / or transversely to its longitudinal axis.
  • the sintered body can be substantially cuboid, disk-shaped or tubular. In the case of a disc-shaped or tubular sintered body, this is preferably axially and / or radially permeable.
  • the sintered body may be formed substantially from plastic or a plastic mixture.
  • the plastic or the plastic mixture may additionally have a Fremdstoffzutsch.
  • the sintered body may alternatively also be formed essentially of metal.
  • the metal in particular stainless steel or bronze, can still have at least a slight impurity addition.
  • the use of metal offers the advantage that the pore size and the shape of the sintered body can be defined very precisely.
  • the sintered body may be made of ceramic or substantially of ceramic. Ceramic sintered bodies are largely inert chemically and have a high hardness.
  • the thickness of the fluid body in the flow direction between 0.1 mm and 30 mm, in particular between 0.5 mm and 20 mm, preferably between 1 mm and 10 mm.
  • the sintered body can be arranged to save space in the filter system. A structurally simple and cost-effective production of the sintered body can be achieved if the sintered body has sintered balls.
  • the sintered balls preferably all have substantially the same diameter. As a result, uniform, defined pore sizes can be achieved.
  • the thickness of the sintered body in its flow direction may be greater than three times the mean diameter of the sintered balls, in particular greater than four times the mean diameter of the sintered balls, preferably greater than five times the average diameter of the sintered balls, particularly preferably greater than six times the average diameter of the sintered balls.
  • the sintered body preferably has a plurality of layers (more than 3, 4, 5, 6...) Sintered balls in the direction of flow. The more layers the sintered body contains, the more effectively the blockage of a dissolving component of the glass fiber filter medium occurs.
  • the pores of the sintered body are at least partially offset transversely to the direction of flow.
  • the rigid, dissolving constituents of the glass fiber medium catch particularly well in the pores or flow-through passages of the sintered body which are formed or arranged in a "zigzag-shaped."
  • the pores or passage recesses can have a clear width of As the clear width according to the law of Hagen-Poiseuille enters into the flow resistance with the fourth power, an enlargement of the clear width of the pores achieves a drastic reduction of the flow resistance, Such an arrangement can be particularly simple and cost-effective way be achieved in that the sintered body has sintered balls, which are arranged in close-packed spherical packing.
  • the sintered body is integrated into a filter housing of the filter system.
  • the sintered body can be arranged on the one hand to save space in the filter system.
  • the sintered body can be exchanged individually after reaching its service life, which possibly exceeds the service life of the filter element by a multiple.
  • it is designed as a lifetime component and does not need to be replaced when changing the filter element.
  • the sintered body may according to the invention but also in the filter element, in particular in an end plate or a central tube of the filter element, be integrated. By replacing the filter element, the sintered body is forcibly renewed in this case as well.
  • the filter element according to the invention for filtering a fluid comprises a glass fiber filter medium and a sintered body fluidly arranged downstream of the glass fiber filter medium for retaining constituents of the glass fiber filter medium in the fluid.
  • the sintered body can be integrated according to the invention in an end plate of the filter element.
  • the sintered body may also be arranged in a central tube of the filter element.
  • the sintered body may have the preferred features described above. Brief description of the drawings
  • Fig. 1 is a schematic side view of a filter system with a first filter element
  • Fig. 2 is a schematic side view of a second filter element
  • FIG. 3 shows a schematic perspective view, greatly enlarged, of the sintered body according to FIG. 1.
  • FIG. 1 shows a filter system 10 according to the invention.
  • the filter system 10 comprises a filter housing 12.
  • a replaceable first filter element 14 is arranged in the filter housing 12.
  • the filter housing 12 comprises an inlet 16 and an outlet 18 for a fluid to be filtered, in particular for fuel.
  • the filter housing 12 is thus - as indicated by arrows 20, 22 - flowed through, wherein the filtering process is carried out substantially in the first filter element 14.
  • the first filter element 14 has a filter medium 24.
  • the filter medium 24 is disposed between a first end plate 26 and a second end plate 28 of the filter element 14 and is formed as a glass fiber filter medium 24. Individual glass fibers may break out of the glass fiber filter medium 24 and contaminate the fluid.
  • the component 32 of the glass fiber filter medium 24 is shown for illustrative purposes in Fig. 1 is particularly large. Realistic components 32 of the glass fiber filter medium 24 have a length of up to several millimeters in the longitudinal direction and a (average) thickness - measured transversely to the longitudinal direction - of several tens of ⁇ m.
  • the filter housing 12 has a sintered body 34.
  • the sintered body 34 is arranged fluidically downstream of the first filter element 14.
  • the sintered body 34 is integrated into the filter housing 12.
  • the sintered body 34 is formed essentially rotationally symmetrical with respect to its longitudinal axis and can be flowed through in the direction of its longitudinal axis.
  • the second filter element 36 has a first end plate 38 in which a glass fiber filter medium 40 is embedded.
  • the second filter element 36 also has a second end plate 42.
  • a sintered body 44 is integrated with the second end plate 42.
  • the sintered body 44 is formed substantially identically to the sintered body 34 (see FIG. 1).
  • the sintered body 44 can be flowed through in the direction of its longitudinal axis.
  • FIG. 3 shows a greatly enlarged section 46 of the sintered body 34 from FIG. 1. From Fig. 3 it is seen that the sintered body 34 has a plurality of sintered balls, of which, for reasons of clarity, only a first sintered ball 48, a second sintered ball 50 and a third sintered ball 52 are provided with a reference numeral. The sintered balls have been partially pressed together and / or fused together during the production of the sintered body 34.
  • the first sintered ball 48 is part of a first layer of sintered balls, which is shown in Fig. 3 as the uppermost layer.
  • the second sintered ball 50 is part of a second layer of sintered balls, which is shown in Fig. 3 as a layer under the first layer.
  • the third sintered ball 52 is part of a third layer of sintered balls, which is located under the second layer.
  • the second layer of sintered balls is thus sintered balls on the third layer and the first layer sintered balls on the second layer sintered balls.
  • the layers are arranged one above the other with respect to the flow direction of the sintered body 34.
  • the layers are arranged transversely to the direction of flow offset from one another, ie, the sintered balls of two adjacent layers are each arranged in a gap to each other.
  • the pores of the sintered body 34 are thereby arranged offset from each other transversely to the flow direction.
  • a rigid component 32 (see FIG. 1) of the glass fiber filter medium 24 can not pass through the sintered body 34.
  • the rigid member 32 because of its inherent flexural rigidity, can not be deformed even at a high flow rate of the fluid to be filtered so as to pass through the staggered pores of the individual sintered body sheets.
  • the invention relates to a filter system with a filter element and a glass fiber filter medium.
  • the filter system comprises a sintered body, which prevents unintentionally dissolved components of the glass fiber filter medium from leaving the filter system.
  • the sintered body preferably has transversely offset passageways, transversely to the direction of flow of the sintered body.
  • H Pores, so that the components of the glass fiber filter medium wedge in the pores of the sintered body.
  • the passage openings may have an average clear width of more than 10 ⁇ , in particular of more than 20 ⁇ , preferably of more than 30 ⁇ and more preferably of more than 40 ⁇ to keep the flow resistance of the sintered body low.
  • a sintered body may be arranged in the filter element and / or outside the filter element in the filter system.
  • the invention further relates to a filter element with a glass fiber filter medium and a sintered body fluidically downstream of the glass fiber filter medium.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Filtering Materials (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

La présente invention concerne un système de filtration (10) comportant un élément de filtration (14) et un milieu filtrant en fibre de verre (24). En outre, le système de filtration (10) comprend un corps fritté (34) qui empêche que des composants (32), dissous de façon indésirable, du milieu filtrant en fibre de verre (24) quittent le système de filtration (10). Pour cela, le corps fritté (34) comportent des passages, c'est à dire des pores, décalés les uns des autres de préférence transversalement au sens d'écoulement du corps fritté (34), de sorte que les composants (32) du milieu filtrant en fibre de verre (24) se coincent dans les pores du corps fritté (34). Les évidements traversants peuvent avoir un diamètre intérieur moyenne de plus de 10 µm, en particulier de plus de 20 µm, de préférence de plus de 30 µm et de manière particulièrement préférée de plus de 40 µm, pour réduire au minimum la résistance à l'écoulement du corps fritté (34). Un corps fritté (34) peut être disposé dans le système de filtration (10) à l'intérieur de l'élément de filtration (14) et/ou à l'extérieur de l'élément de filtration (14). L'invention concerne en outre un élément de filtration comportant un milieu filtrant en fibres de verre et un corps fritté disposé de manière fluidique en aval du milieu filtrant en fibre de verre.
EP15725364.2A 2014-06-02 2015-06-01 Système de filtration et élément de filtration comportant un milieu filtrant en fibre de verre et un corps fritté Withdrawn EP3148672A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014007813 2014-06-02
PCT/EP2015/062063 WO2015185470A1 (fr) 2014-06-02 2015-06-01 Système de filtration et élément de filtration comportant un milieu filtrant en fibre de verre et un corps fritté

Publications (1)

Publication Number Publication Date
EP3148672A1 true EP3148672A1 (fr) 2017-04-05

Family

ID=53269500

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15725364.2A Withdrawn EP3148672A1 (fr) 2014-06-02 2015-06-01 Système de filtration et élément de filtration comportant un milieu filtrant en fibre de verre et un corps fritté

Country Status (5)

Country Link
US (1) US20170080370A1 (fr)
EP (1) EP3148672A1 (fr)
CN (1) CN106457076A (fr)
DE (1) DE102015006766A1 (fr)
WO (1) WO2015185470A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016002264A1 (de) * 2016-02-25 2017-08-31 Mann+Hummel Gmbh Reinigungsmodul, Filterelement und Filtersystem
DE102017001380A1 (de) * 2017-02-14 2018-08-16 Mann+Hummel Gmbh Kraftstofffilter, Reinigungskartusche und Verwendung
DE102018001601A1 (de) * 2018-03-01 2019-09-05 Mann+Hummel Gmbh Koaleszenzabscheider, insbesondere zur Verwendung in einem Kompressordruckluftsystem, Kompressordruckluftsystem sowie Verwendung eines Koaleszenzabscheiders
DE102018111797A1 (de) 2018-05-16 2019-11-21 Mann+Hummel Gmbh Filtersystem und Filterelement mit glasfaserhaltigem Filtermedium und Wickelkörper-Glasfasersperre

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SE311882B (fr) * 1963-03-11 1969-06-30 Pall Corp
GB1199631A (en) * 1966-09-14 1970-07-22 Commissariat Energie Atomique Filter for Hot Gases
EP0232848A2 (fr) * 1986-02-13 1987-08-19 Ultrafilter GmbH Düsseldorf Elément filtrant
DE3844199A1 (de) * 1988-12-29 1990-07-05 Keller Lufttechnik Gmbh & Co Kg Filterelement zum abscheiden von feststoffpartikeln aus gasfoermigen und/oder fluessigen medien
DE4418033A1 (de) * 1994-05-24 1995-11-30 Herding Entstaubung Filterelement mit Faserbeschichtung und Verfahren zu seiner Herstellung

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EP2593164B1 (fr) * 2010-07-16 2017-03-22 Boehringer Ingelheim International GmbH Système de filtre conçu pour être utilisé dans des appareils médicaux
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Publication number Priority date Publication date Assignee Title
SE311882B (fr) * 1963-03-11 1969-06-30 Pall Corp
GB1199631A (en) * 1966-09-14 1970-07-22 Commissariat Energie Atomique Filter for Hot Gases
EP0232848A2 (fr) * 1986-02-13 1987-08-19 Ultrafilter GmbH Düsseldorf Elément filtrant
DE3844199A1 (de) * 1988-12-29 1990-07-05 Keller Lufttechnik Gmbh & Co Kg Filterelement zum abscheiden von feststoffpartikeln aus gasfoermigen und/oder fluessigen medien
DE4418033A1 (de) * 1994-05-24 1995-11-30 Herding Entstaubung Filterelement mit Faserbeschichtung und Verfahren zu seiner Herstellung

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Title
See also references of WO2015185470A1 *

Also Published As

Publication number Publication date
WO2015185470A1 (fr) 2015-12-10
US20170080370A1 (en) 2017-03-23
DE102015006766A1 (de) 2015-12-03
CN106457076A (zh) 2017-02-22

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