WO2023179968A1 - Élément de filtre et système de filtre - Google Patents

Élément de filtre et système de filtre Download PDF

Info

Publication number
WO2023179968A1
WO2023179968A1 PCT/EP2023/053564 EP2023053564W WO2023179968A1 WO 2023179968 A1 WO2023179968 A1 WO 2023179968A1 EP 2023053564 W EP2023053564 W EP 2023053564W WO 2023179968 A1 WO2023179968 A1 WO 2023179968A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
recess
housing
filter element
stiffening rib
Prior art date
Application number
PCT/EP2023/053564
Other languages
German (de)
English (en)
Inventor
Mayank SHRIMALI
Mridul Sharma
Bharatesh Alagouda
Shajahan VELLATHUMPARAMBIL
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
Publication of WO2023179968A1 publication Critical patent/WO2023179968A1/fr

Links

Classifications

    • 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
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • 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
    • B01D46/0002—Casings; Housings; Frame constructions
    • B01D46/0005—Mounting of filtering elements within casings, housings or frames
    • 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
    • B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2265/00—Casings, housings or mounting for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2265/02—Non-permanent measures for connecting different parts of the filter
    • B01D2265/024—Mounting aids
    • B01D2265/026—Mounting aids with means for avoiding false mounting

Definitions

  • the invention relates to a filter element for a filter system for filtering a fluid, in particular air, with a flatly arranged filter body and a filter system for filtering a fluid, in particular air, with a replaceable filter element.
  • the intake air of internal combustion engines is usually passed through an air filter with a filter housing and a filter element arranged therein in order to separate dirt particles contained in the intake air from the intake air.
  • an air filter is known, for example, from DE 10231 696 A1.
  • the filter element has the shape of a flat cuboid and comprises a filter medium made of paper or filter fleece that is folded in a zigzag shape. The folds on one side of the filter medium limit a main filter surface for the raw air side of the filter element and the folds on the opposite side of the filter element lying in the parallel plane limit the filter surface for the clean air side.
  • a required sealing of the fold ends of the filter medium is achieved by means of a so-called end edge bonding, which can be achieved, for example, by applying a bead of hot-melt adhesive to the filter medium, spray bonding, PUR foam application or a so-called side band bonding.
  • a filter device which has a multi-part housing and a filter element that can be inserted into the housing, the housing parts being connected to one another in the assembled state.
  • a connecting device passing through the filter element is provided for connecting the housing parts, the connecting device comprising at least one housing dome formed in one piece with a housing part and a damping element which is arranged between the end face of the housing dome and the opposite housing part.
  • One object of the invention is to create an easy-to-assemble filter element for a filter system.
  • a filter element for a filter system for filtering a fluid, in particular air with a flatly arranged filter body with a filter medium, which, when used as intended, is flowed through by the fluid in one flow direction, at least one clean side
  • the outflow surface of the filter body is circumferentially surrounded by a frame element with a seal on one circumference, the filter body having at least one stiffening rib connected to the frame element, the outflow surface having at least one recess into which, when properly installed in a filter housing of the filter system, a recess arranged on the filter housing Counter element intervenes.
  • a filter system for filtering a fluid, in particular air, with a replaceable filter element and a filter housing with a fluid inlet and a fluid outlet
  • the filter element having a filter body with a filter medium which, when used as intended, flows in a direction of flow of the fluid is flowed through, wherein at least one clean-side outflow surface of the filter body is surrounded by a frame element with a seal on a circumference, the filter body having at least one stiffening rib connected to the frame element, the outflow surface having at least one recess into which a counter-element arranged on the filter housing intervenes
  • a filter element for a filter system for filtering a fluid in particular air
  • a flatly arranged filter body with a filter medium through which the fluid flows in a flow direction when used as intended, at least one clean-side outflow surface of the Filter body is surrounded by a frame element with a seal on a circumference.
  • the filter body has at least one stiffening rib connected to the frame element.
  • the outflow surface has at least one recess into which a counter-element arranged on the filter housing engages when properly installed in a filter housing of the filter system.
  • the proposed filter element is intended for an air filter system of a motor vehicle and can be replaced if necessary.
  • Such filter elements can have different elements for positioning and receiving in a filter housing of the filter system.
  • the filter element has a positioning element in the form of a Recess in the filter body, into which a complementary counter element, which is arranged on the filter housing, engages.
  • the filter body can preferably be designed with a zigzag-folded filter medium.
  • a recess can also be formed in a filter body with flat filter layers.
  • the recess can advantageously be connected to the frame element and/or to the at least one stiffening rib.
  • Such an interlocking of the recess and the counter element has the advantage that the filter element is protected against vibrations of a vehicle engine by ensuring a favorable mounting fit of the filter element and a favorable seal through a secure fit of the seal of the filter element in the filter housing.
  • the recess and counter element work according to the Poka Yoke principle, so that the filter element can be installed so that it cannot be confused. This is advantageous because an incorrectly mounted filter element can lead to an incorrect response signal from an air mass sensor.
  • the at least one recess can be lined with a material of the frame element and/or the at least one stiffening rib.
  • the recess can be lined with plastic.
  • the recess can be designed to be stable and at the same time be manufactured inexpensively together with the frame element and/or the stiffening rib, in particular in one piece. Since the frame element and stiffening rib are preferably made of plastic, the recess can also be lined with plastic.
  • Frame element, stiffening rib or ribs and the wall surrounding the recess can be manufactured in one piece in a common injection molding process.
  • the at least one recess can be arranged in a recess in the filter body.
  • the filter body for example made of a zigzag-folded paper medium, can be suitably cut or punched out to form the recess of the filter body.
  • the filter body can have at least two stiffening ribs, with the at least one recess being arranged between the at least two stiffening ribs.
  • the at least one recess each be connected to the two stiffening ribs with a web.
  • the stiffening ribs serve to stiffen the filter body. If the recess is arranged between the stiffening ribs, the recess or a wall surrounding the recess can advantageously be mechanically connected to the stiffening ribs via webs on both sides in order to be able to transmit forces.
  • the at least one recess can be arranged at least partially in the at least one stiffening rib. Another advantageous option is to integrate the recess directly into the stiffening rib.
  • the recess is stably connected to the frame element via the stiffening rib and can advantageously transmit larger forces.
  • the at least one recess can be arranged at a connection between the at least one stiffening rib and the frame element. Such an arrangement can also ensure that the filter element is installed in the filter housing so that it cannot be mixed up.
  • the at least one recess can be arranged in the at least one stiffening rib.
  • at least two recesses can be arranged in the at least one stiffening rib.
  • the stiffening rib can directly have one or more recesses. This can be achieved, for example, by at least partially notches in the stiffening rib.
  • the at least one recess can engage between folds of the filter medium.
  • the filter body can be folded in a zigzag shape and the at least one recess arranged in the stiffening rib can engage between folds of the filter medium.
  • the recess is limited to the area of the filter body in which the at least one stiffening rib is arranged. In this way, the full surface of the filter body is available for filtering the fluid.
  • the at least one recess can have a circular cross section, or a rectangular cross section, or a semicircular cross section.
  • the at least one recess can have a cross section that tapers conically in an engagement direction of the counter element.
  • the recess can advantageously have different cross sections that fit together with corresponding shapes of the counter element. A yourself Tapered cross section is advantageous to ensure secure assembly and a tight fit of the filter element in the filter housing.
  • the at least one recess can advantageously be tightly connected to the filter medium. This ensures that no unwanted leakage occurs when filtering the fluid in the filter housing.
  • the at least one recess can be arranged asymmetrically in a surface of the filter body so that it can be mounted in the filter housing according to the Poka Yoke principle so that it cannot be confused.
  • the recess and counter element work according to the Poka Yoke principle, so that the filter element can only be mounted in one orientation or in a fixed position. This is advantageous because an incorrectly mounted filter element can lead to an incorrect response signal from an air mass sensor.
  • the filter element can have more than one recess.
  • different configurations of the recess described above can be combined with one another.
  • a filter system for filtering a fluid in particular air
  • a filter element has a filter body with a filter medium which, when used as intended, flows in one direction of flow the fluid flows through, and at least one clean-side outflow surface of the filter body is circumferentially surrounded by a frame element with a seal on one circumference.
  • the filter body has at least one stiffening rib connected to the frame element.
  • the outflow surface has at least one recess into which a counter element arranged on the filter housing engages.
  • the filter element used in the filter system can be replaced if necessary.
  • Such filter elements can have different elements for positioning and receiving in the filter housing of the filter system.
  • the filter element has a positioning element in the form of a recess in the filter body, into which a complementary counter-element, which is arranged on the filter housing, engages.
  • the filter body can preferably be designed with a zigzag-folded filter medium.
  • a recess can also be used in a filter body with flat filter layers be trained.
  • the recess can advantageously be connected to the frame element and/or to the at least one stiffening rib.
  • Such an interlocking of the recess and the counter element has the advantage that the filter element is protected against vibrations of a vehicle engine by ensuring a favorable mounting fit of the filter element and a favorable seal through a secure fit of the seal of the filter element in the filter housing.
  • the recess and counter element work according to the Poka Yoke principle, so that the filter element can be installed so that it cannot be confused. This is advantageous because an incorrectly mounted filter element can lead to an incorrect response signal from an air mass sensor.
  • the filter housing can have at least a first housing part with the fluid inlet and a second housing part with the fluid outlet, with the at least one counter-element being arranged on the first or second housing part.
  • the filter element can be securely inserted into a housing part in order to close the filter housing with the second housing part.
  • the counter-element advantageously engages in the recess of the filter element in order to ensure that the filter element sits securely in the filter housing.
  • the at least one recess can be arranged asymmetrically in a surface of the filter body in such a way that it can be mounted in the filter housing according to the Poka Yoke principle in a way that prevents it from being confused.
  • the recess and counter element work according to the Poka Yoke principle, so that the filter element can only be mounted in one orientation. This is advantageous because an incorrectly mounted filter element can result in an incorrect response signal from an air mass sensor in the filtered air flow.
  • Fig. 1 is an isometric view of a filter system according to an embodiment of the invention
  • FIG. 2 shows a top view of the filter system according to FIG. 1 with the section plane AA drawn in;
  • FIG. 3 is an isometric representation of a filter element according to an exemplary embodiment of the invention.
  • FIG. 4 shows a longitudinal section through the filter element according to FIG. 3 in the area of a recess
  • FIG. 5 shows a longitudinal section through the filter system according to FIG. 2 along the section line AA;
  • FIG. 6 is an isometric representation of a filter element according to a further exemplary embodiment of the invention.
  • FIG. 7 shows a longitudinal section through the filter element according to FIG. 6 in the area of a recess
  • FIG. 8 shows a longitudinal section through a filter system with the filter element according to FIG. 6 along the section line AA;
  • FIG. 9 is an isometric representation of a filter element according to a further exemplary embodiment of the invention.
  • FIG. 10 shows a longitudinal section through the filter element according to FIG. 9 in the area of a recess
  • FIG. 11 shows a longitudinal section through a filter system with the filter element according to FIG. 9 along the section line AA;
  • FIG. 12 is an isometric representation of a filter element according to a further exemplary embodiment of the invention.
  • FIG. 13 shows a longitudinal section through the filter element according to FIG. 12 in the area of a recess
  • FIG. 14 shows a longitudinal section through a filter system with the filter element according to FIG. 12 along the section line AA;
  • 16 shows a longitudinal section through the filter element according to FIG. 15 in the area of a recess
  • 17 shows a longitudinal section through a filter system with the filter element according to FIG. 15 along section line AA;
  • FIG. 18 is an isometric view of a filter element according to a further exemplary embodiment of the invention.
  • FIG. 19 shows a longitudinal section through the filter element according to FIG. 18 in the area of a recess.
  • Fig. 20 shows a longitudinal section through a filter system with the filter element according to Figure 18 along the section line AA.
  • Figure 1 shows an isometric view of a filter system 100 according to an exemplary embodiment of the invention.
  • Figure 2 shows a top view of the filter system 100 according to Figure 1 with the section plane AA drawn.
  • the filter system 100 for filtering a fluid comprises an invisible, replaceable filter element 10 and a filter housing 110 with a fluid inlet 102 and a fluid outlet 104.
  • the filter housing 110 has at least a first housing part 112 with the fluid inlet 102 and a second housing part 114 with the fluid outlet 104.
  • the two housing parts 112, 114 are tightly connected to the mounted filter element 10.
  • FIG. 3 shows an isometric representation of a filter element 10 according to an exemplary embodiment of the invention.
  • the filter element 10 has a filter body 12 with a filter medium 14, through which the fluid flows in a flow direction 50 when used as intended. At least one clean-side outflow surface 16 of the filter body 12 is circumferentially surrounded by a frame element 20 with a seal 22 on a circumference 52.
  • the Seal 22 can, for example, be made of polyurethane (PUR) and, for example, foamed onto the frame element 20 during the manufacturing process.
  • the filter body 12 has two stiffening ribs 24 arranged in parallel and connected to the frame element 20.
  • the outflow surface 16 has at least one recess 30 into which a counter element 130 arranged on the filter housing 110 can engage.
  • the at least one counter-element 130 can be arranged on the first or second housing part 112, 114.
  • the recess 30 is arranged between the two stiffening ribs 24.
  • the recess 30 is connected to the two stiffening ribs 24 with a web 34 for a rigid mechanical connection.
  • the counter element 130 is arranged in the second housing part 114, the housing cover. On the outside of the filter housing 110, the counter element 130 can only be seen as a recess in the housing part 114, which is manufactured, for example, in a plastic injection molding process.
  • Figure 4 shows a longitudinal section through the filter element 10 according to Figure 3 in the area of the recess 30, while in Figure 5 a longitudinal section through the filter system according to Figure 2 is shown along the section line AA.
  • the recess 30 is arranged in a recess 32 in the filter body 12.
  • the recess 32 in the filter body 12 can, for example, be cut or punched out of the zigzag-folded filter medium 14.
  • the recess 30 can advantageously be lined with a material of the frame element 20 and/or the at least one stiffening rib 24 in order to be able to accommodate the counter element 130 of the filter housing 110 with the corresponding mechanical stability. So the recess 30 can be lined with plastic in a frame element 20 made of plastic.
  • the recess has a circular cross section.
  • the recess 30 can also have a rectangular cross-section or a semicircular cross-section.
  • the recess 30 is in an engagement direction 54 of the counter element 130 Has a conically tapering cross section.
  • the counter element 130 which, as can be seen in Figure 5, has a corresponding shape, can be safely inserted into the recess 30 in the engagement direction 54 when the second housing part 114 is placed on the first housing part 112 with the filter element 10 mounted.
  • the recess 30 is arranged asymmetrically in the surface 18 of the filter body 12 in such a way that it can be mounted in the filter housing 110 according to the Poka Yoke principle in a way that prevents it from being confused.
  • the counter element 130 can only engage in the recess 30 if the filter element 10 is mounted appropriately in the first housing part 112, so that the filter housing 110 can be closed.
  • the fluid direction 50 is shown with an arrow.
  • the fluid therefore flows from the first housing part 112 with the invisible fluid inlet 102 through the filter body 12 into the second housing part 114, where it can flow out through the invisible fluid outlet 104.
  • the filter element 10 is sealed against the filter housing 110 by the seal 22 arranged on the frame element 20.
  • Figure 6 shows an isometric view of a filter element 100 according to a further exemplary embodiment of the invention
  • Figure 7 shows a longitudinal section through the filter element 10 according to Figure 6 in the area of the recess 30
  • 8 shows a longitudinal section through a filter system 100 with the filter element 10 according to FIG. 6 along the section line AA.
  • the cutting line leads through the recess 30.
  • the recess 30 is arranged at least partially in the at least one stiffening rib 24.
  • the recess 30 is stably connected to the frame element 20 via the stiffening rib 24 and can advantageously transmit larger forces.
  • Figure 9 shows an isometric view of a filter element 100 according to a further exemplary embodiment of the invention
  • Figure 10 shows a longitudinal section through the filter element 10 according to Figure 9 in the area of the recess 30
  • 11 shows a longitudinal section through a filter system 100 with the filter element 10 according to FIG. 9 along the section line AA.
  • the cutting line leads through the recess 30.
  • the recess 30 is arranged at a connection between the at least one stiffening rib 24 and the frame element 20.
  • the recess 30 is semicircular. The secant of the semicircle rests on the frame element 20.
  • the recess 30 is stably connected to the frame element 20 via the stiffening rib 24 and can advantageously transmit larger forces.
  • Figure 12 shows an isometric view of a filter element 100 according to a further exemplary embodiment of the invention
  • Figure 13 shows a longitudinal section through the filter element 10 according to Figure 12 in the area of the recess 30
  • 14 shows a longitudinal section through a filter system with the filter element 10 according to FIG. 12 along the section line AA.
  • the cutting line leads through the recess 30.
  • the embodiment shown in Figures 12 to 14 corresponds to the embodiment shown in Figures 6 to 8.
  • the recess 30 has a rectangular cross-section instead of a circular cross-section.
  • Figure 15 shows an isometric view of a filter element 10 according to a further exemplary embodiment of the invention, while Figure 16 shows a longitudinal section through the filter element
  • FIG. 15 shows in the area of the recess. 17 shows a longitudinal section through a filter system with the filter element 10 according to FIG. 15 along the section line AA.
  • the cutting line leads through the recess 30.
  • the recess 30 has a rectangular cross-section instead of a semicircular cross-section.
  • Figure 18 shows an isometric view of a filter element 10 according to a further exemplary embodiment of the invention
  • Figure 19 shows a longitudinal section through the filter element 10 according to Figure 18 in the area of the recesses 30
  • 20 shows a longitudinal section through a filter system with the filter element 10 according to FIG. 18 along the section line AA.
  • the cutting line leads through the recesses 30.
  • two recesses 30 are arranged in the stiffening rib 24. Since the filter body 12 shown in the embodiments shown is folded in a zigzag shape, the recesses 30 arranged in the stiffening rib 24 can engage between folds 60 of the filter medium 14.
  • the corresponding counter elements 130 are rod-shaped.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

L'invention concerne un élément de filtre (10) pour un système de filtre (100) destiné à filtrer un fluide, en particulier de l'air, comprenant un corps de filtre (12) qui est disposé à plat et comprend un milieu filtrant (14) à travers lequel le fluide s'écoule dans une direction d'écoulement (50) lorsque l'élément de filtre est utilisé comme prévu, au moins une surface de sortie côté propre (16) du corps de filtre (12) étant entourée en périphére par un élément de cadre (20) avec un joint d'étanchéité (22) le long de la périphérie (52), le corps de filtre (12) comprenant au moins une nervure de renforcement (24) qui est reliée à l'élément de cadre (20), et la surface de sortie (16) comprenant au moins un évidement (30) dans lequel un élément de couplage (130) s'engage lorsque l'élément de filtre est installé dans un boîtier de filtre (110) du système de filtre (100) comme prévu, ledit élément de couplage étant disposé sur le boîtier de filtre (110). L'invention concerne également un système de filtre (100) comprenant un élément de filtre remplaçable (10).
PCT/EP2023/053564 2022-03-21 2023-02-14 Élément de filtre et système de filtre WO2023179968A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022106562.6A DE102022106562A1 (de) 2022-03-21 2022-03-21 Filterelement und Filtersystem
DE102022106562.6 2022-03-21

Publications (1)

Publication Number Publication Date
WO2023179968A1 true WO2023179968A1 (fr) 2023-09-28

Family

ID=85238937

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2023/053564 WO2023179968A1 (fr) 2022-03-21 2023-02-14 Élément de filtre et système de filtre

Country Status (2)

Country Link
DE (1) DE102022106562A1 (fr)
WO (1) WO2023179968A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57140617A (en) * 1981-02-25 1982-08-31 Nippon Denso Co Ltd Fluid purifier
DE10231696A1 (de) 2002-07-13 2004-01-22 B & S Industrieservice Gmbh Filtereinsatz mit einer zu einem Faltenbalg gefalteten Filtermatte
FR2852862A1 (fr) * 2003-03-27 2004-10-01 Valeo Materiaux Friction Dispositif perfectionne de filtration d'air et installation de circulation d'air dans un vehicule automobile comprenant ce dispositif
EP2223727A1 (fr) 2009-02-16 2010-09-01 Mann + Hummel GmbH Dispositif de filtre destiné à la filtration de fluides gazeux
US20160051909A1 (en) * 2014-08-25 2016-02-25 Mann+Hummel Gmbh Filter element and housing with cooperating filter media support structures
DE102021119815A1 (de) * 2020-07-31 2022-02-03 Mann+Hummel Gmbh Filterelement mit zickzackförmig gefaltetem Filtermedium mit diskontinuierlicher Stirnkantenverklebung sowie Verfahren zum Herstellen eines solchen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016011158A1 (de) 2016-09-16 2018-03-22 Mann + Hummel Gmbh Filterelement und Filtersystem
DE102017000792B4 (de) 2017-01-30 2022-08-04 Mann+Hummel Gmbh Filterelement, Verfahren zu dessen Herstellung und Luftfilter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57140617A (en) * 1981-02-25 1982-08-31 Nippon Denso Co Ltd Fluid purifier
DE10231696A1 (de) 2002-07-13 2004-01-22 B & S Industrieservice Gmbh Filtereinsatz mit einer zu einem Faltenbalg gefalteten Filtermatte
FR2852862A1 (fr) * 2003-03-27 2004-10-01 Valeo Materiaux Friction Dispositif perfectionne de filtration d'air et installation de circulation d'air dans un vehicule automobile comprenant ce dispositif
EP2223727A1 (fr) 2009-02-16 2010-09-01 Mann + Hummel GmbH Dispositif de filtre destiné à la filtration de fluides gazeux
US20160051909A1 (en) * 2014-08-25 2016-02-25 Mann+Hummel Gmbh Filter element and housing with cooperating filter media support structures
DE102021119815A1 (de) * 2020-07-31 2022-02-03 Mann+Hummel Gmbh Filterelement mit zickzackförmig gefaltetem Filtermedium mit diskontinuierlicher Stirnkantenverklebung sowie Verfahren zum Herstellen eines solchen

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