WO2017108835A1 - Système de filtre à air, élément filtrant de filtre à air de moteur, et structure interne de support pour un élément filtrant de filtre à air de moteur - Google Patents

Système de filtre à air, élément filtrant de filtre à air de moteur, et structure interne de support pour un élément filtrant de filtre à air de moteur Download PDF

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Publication number
WO2017108835A1
WO2017108835A1 PCT/EP2016/081991 EP2016081991W WO2017108835A1 WO 2017108835 A1 WO2017108835 A1 WO 2017108835A1 EP 2016081991 W EP2016081991 W EP 2016081991W WO 2017108835 A1 WO2017108835 A1 WO 2017108835A1
Authority
WO
WIPO (PCT)
Prior art keywords
filtering element
internal structure
region
air filter
mounting
Prior art date
Application number
PCT/EP2016/081991
Other languages
English (en)
Inventor
Alexandre LUCHESI DE ALMEIDA
Edson Valdomiro DE AZEVEDO JUNIOR
Pedro BASSO
Marcos José DANTAS DE OLIVEIRA
Fernando JUN YOSHINO
Original Assignee
Mahle Metal Leve S/A
Mahle International 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 Mahle Metal Leve S/A, Mahle International Gmbh filed Critical Mahle Metal Leve S/A
Publication of WO2017108835A1 publication Critical patent/WO2017108835A1/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
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2411—Filter cartridges
    • B01D46/2414—End caps including additional functions or special forms
    • 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
    • B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
    • B01D46/64—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series arranged concentrically or coaxially
    • 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
    • B01D2265/021—Anti-rotational means
    • 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
    • B01D2265/06—Details of supporting structures for filtering material, e.g. cores

Definitions

  • the present invention relates to an air filter system for internal combustion engines, to a filtering 10 element and to a supporting structure for a filtering element, which improve the mounting and replacement of air filters in addition to reducing the wastage of raw material involved in parts subject to little wear during the use and service life of air filters.
  • filters are installed between the tank and the injection nozzles, and, to prevent the ingress of particulates present in the air, filters are installed between the atmosphere and the air inlet of the combustion chambers.
  • Such filtering elements have to be replaced from time to time, before they become saturated, since in such cases the filtering element not only impedes the passage of the filtered fluid but can be damaged and then allow the ingress of foreign bodies, thereby becoming inefficient .
  • Air filters of heavy vehicles are commonly installed attached to the chassis longitudinal bar or, alternatively, behind the truck cab. For this reason, it is often difficult to access the parts that require periodic maintenance, either owing to other parts obstructing physical access or viewing of the part or, furthermore, owing to mounting positions that complicate the ergonomics of the task, such as in situations where the cover of the air filter faces downwards, close to the ground. Air filters are usually installed close to engines, and therefore under the vehicle bonnet. For this reason, the replacement of these components tends to be simple and rapid.
  • the present state of the art lacks an air filter system at the intake of internal combustion engines that is capable of providing a unified solution for all the above-mentioned problems, resulting in a system and filter that is durable in the long term, and easy and precise to install and to replace, and also of making provision for the responsible use of resources, minimizing discarding of components having parts still in good condition.
  • an object of the present invention is to provide an air filter system provided with a filter with an independent internal structure, with a view to minimizing premature discarding of parts that are still in a good state of preservation.
  • a further object of the present invention is to provide an air filter system that allows the segmentation of the conventional parts of a filter system and guarantees the association thereof in a simple and effective manner, preventing the occurrence of drawbacks such as: mounting in an incorrect position; detachment during operation; noise generation; inter alia.
  • an air filter system comprising: an external structure; an internal structure associated in a cooperating manner with the external structure, the internal structure being provided with openings capable of allowing the passage of a fluid to be filtered; and a principal filtering element arranged between the external structure and the internal structure, the internal structure, the external structure and the principal filtering element being associated with one another by means of engagement of mounting guides, it being possible for the mounting guides to be associated with one another in order to confer synchronism on the relative angular movement between the assembly formed by the internal structure and the principal filtering element, and the external structure.
  • a filtering element of an air filter of an engine comprising: at least one mounting guide region for juxtaposed engagement of the filtering element with an internal structure of an air filter of an engine; and at least one sealing region between an inlet region for fluid to be filtered and an outlet region for filtered fluid.
  • a supporting internal structure for a filtering element of an air filter of an engine comprising: a fluid passage region; a filtering element guide region; and a region for affixing to the external structure, wherein: the fluid passage region is provided with openings capable of allowing the passage of the filtered fluid; the filtering element guide region is provided with a mounting guide projection for engagement in a mounting guide recess of the filtering element; and the region for affixing to the external structure is provided with a support base and at least one region for engagement with the external structure.
  • FIG. 2 shows an upper, sectional view of the air filter system shown in Figure 1;
  • - Figure 3 shows an embodiment of the supporting internal structure for a filtering element, according to the present invention;
  • - Figure 4 shows a perspective view of the side of the air filter system of Figure 1, but without the front cover and comprising, mounted within, only the supporting internal structure of the filtering element;
  • - Figure 5 shows an embodiment of the principal filtering element, according to the present invention;
  • FIG. 6 shows a detailed view of the interior of the rear cover, in the region designed to receive the mounting of the supporting internal structure for the filtering element;
  • FIG. 7 shows a detailed view of the guide region of the filtering element and the front cover of the air filter system
  • FIG. 8 shows a detailed view of the overall association of the supporting internal structure guide region for a filtering element, of the principal filtering element and of the back-up filtering element;
  • FIG. 9 shows a perspective view of an embodiment of the back-up filtering element of the present invention.
  • the presence of item 60 is optional. The exclusion of this item does not affect correct functioning of the system;
  • - Figure 10 shows a perspective view of the filtering element of Figure 9, mounted in a supporting internal structure for the filtering element
  • - Figure 11 shows a perspective view of an embodiment of the back-up filtering element of the present invention
  • - Figures 12a and 12b show a perspective view of the filtering element of Figure 11 mounted in a supporting internal structure for the filtering element.
  • filtering element will be understood to mean not only the principal filtering element 50 but also the back-up filtering element 60, since, in either of these embodiments, the filtering element of the present invention comprises the same central structural features, namely: a geometry capable of allowing juxtaposed mounting on an internal structure 40; and at least one sealing region capable of preventing fluid communication between an inlet region for fluid to be filtered and an outlet region for filtered fluid.
  • a geometry capable of allowing juxtaposed mounting on an internal structure 40 is understood to mean the geometry of the filtering element when associated with the internal structure 40, said association being achieved in a juxtaposed manner, with minimum clearance and adjustment such as to allow mounting and removal of parts without the use of excessive force, which could give rise to accidental damage thereof, generating difficulties and problems in terms of mounting, which conflicts totally with the objects achieved by the present invention.
  • the mounting guide regions 55, 65 for engagement of the filtering element with the internal structure 40 are regions along the surface of the filtering element, which surface is provided with physical features that result in conditioning of direction and/or conditioned limitation of degrees of freedom between one component and another, in the present case between the filtering element 50, 60 and the internal structure 40.
  • mounting guide region 15, 45, 55, 65 is present in at least one of the components of the air filter system, which components are defined by: front cover 10, internal structure 40, principal filtering element 50 and back ⁇ up filtering element 60, acting as mounting guide, for correct positioning, and guide for limiting relative movement between the parts, facilitating the locking thereof with one another and/or with the rear cover 30, and also preventing the propagation of vibrations arising from engine vibration or the passage of the vehicle over road surfaces.
  • the mounting guide region 55, 65 is defined by a projection/recess made in the surface of the filtering element, with a geometry compatible with the projection/recess geometry of a mounting guide region 15, 45 arranged on the internal 40 and/or external 20 structure, for example on the mounting cover 10, of a filter system 1.
  • the back-up filtering element 60 comprises a mounting guide 65 at one of its ends and a flange 62 at the opposite end, said flange 62 being provided with a sealing ring 64 at its external edge for preventing the fluid to be filtered passing from the inlet region to the outlet region for filtered fluid by some means that is not the filtering path imposed by the principal 50 and back-up 60 filter.
  • Said supporting internal structure 40 for the filtering element 50, 60 of the present invention consists in a structure responsible for conferring rigidity on the filtering element 50, 60, but this is an independent component and therefore not replaceable at the time when the filtering element 50, 60 reaches a level of dirt accumulated on the surface thereof that is above that which is desired/permitted for proper functioning of the engine.
  • said internal structure 40 may, if well cared for when the filter is replaced, last throughout the entire service life of the engine.
  • the internal structure 40 comprises: a fluid passage region; a filtering element guide region; and a region for affixing to the rear cover, wherein: the fluid passage region is provided with openings 46 capable of allowing the passage of the filtered fluid; the filtering element guide region is provided with a mounting guide projection 45 for engagement in a mounting guide recess 55, 65 of the filtering element 50, 60; and the region for affixing to the rear cover is provided with a support base 42 and at least one region for engagement with the rear cover.
  • the openings 46 that define the fluid passage region are formed by a plurality of adjacent openings spaced longitudinally and radially over a cylindrical surface of the internal structure 40.
  • said openings 46 are the result of the spacing of a plurality of structural reinforcements 41, such as a grille that forms a basket.
  • This embodiment allies structural rigidity with a high level of open surface, allowing the passage of a high volume of filtered fluid with a low pressure drop.
  • the internal structure 40 comprises a sealing region 44 capable of preventing fluid communication between an inlet region for fluid to be filtered and an outlet region for filtered fluid, and more precisely said sealing region is arranged along the periphery of one of the ends thereof, being able, optionally, to work in conjunction with the sealing ring 64 of the back-up filtering element 60.
  • the association of the internal structure 40 with the rear cover 30 must be as simple and as rigid as possible, since mounting errors or clearances between the association of these elements may give rise to drawbacks such as the friction-wear of contacting surfaces or undesirable noise, both resulting from vibration from functioning of the engine or even the balance of the vehicle as it moves.
  • the internal structure 40 of the present invention comprises an engagement region, which is defined by the association between tangential projections 33 and tangential openings 43, which can be associated with and dissociated from one another by means of relative rotation between the internal structure 40 and the rear cover 30 and, consequently, the external structure 20.
  • the tangential openings 43 are arranged in the flange 42 of the internal structure 40 and the tangential projections are arranged in the support base 32 of the rear cover 30 of the external structure 20.
  • the internal structure 40 is mounted inside the external structure 20 and has its flange 42 bearing on the base 32.
  • the internal structure 40 may be inserted with the filtering element (s) 50, 60 already installed thereunder, by means of the joint association of the respective mounting guides 45, 55, 65 thereof, and then the assembly defined by the internal structure 40 and the filtering element (s) 50, 60 rotated until the tangential projections 33 encounter the tangential openings 43 and lock together, preventing the axial, radial and rotational movement of the internal structure 40 relative to the external structure 20.
  • the principal filtering element 50 comprises radial projections 56 that engage in locking housings 34 of the rear cover 30 when the filtering element 50, or the assembly defined by the internal structure 40 and the filtering element (s) 50, 60 is rotated inside the external structure 20.
  • the association between the tangential openings 43 and the tangential projections 33, and between the radial projections 56 and the locking housings 34 arises by means of the relative angular movement between the assembly formed by the internal structure 40 and the principal filtering element 50, and the external structure 20.
  • the axial pressure needed to ensure sealing between items 30, 40 and 50 is generated during the angular movement of item 40 coupled to the others, by means of the interaction between item 56 and the inclined plane of item 34.
  • the internal structure 40 comprises the sealing ring 64 of the filtering element 60 around the edge of the flange 42, forming the sealing region.
  • the filtering element 50 comprises a sealing region 54 defined by a peripheral ring composed of deformable material, such as a low-density polymer, that is capable of providing a sealing region when in contact against a wall of the external structure 20.
  • the air filter system 1 of the present invention comprises: an external structure 20; an internal structure 40; a principal filtering element 50; and a back-up filtering element 60, the internal structure 40 being associated in a cooperating manner with the external structure 20, the back-up filtering element 60 being arranged so as to be juxtaposed with at least one surface region of the internal structure 40, and the surface of the internal structure 40 being provided with openings 46 capable of allowing the passage of a fluid to be filtered .
  • the air filter system 1 comprises the internal structure 40, the external structure 20, the principal filtering element 50 and the back-up filtering element 60, which are associated with one another by means of the engagement of mounting guides 45, 55, 65, in which the association of the mounting guides 45, 55, 65 confers synchronism on the angular movement of the assembly formed by the association of the internal structure 40, the principal filtering element 50 and the back-up filtering element 60 inside the external structure 20.
  • the assembly formed by the association of the internal structure 40, the principal filtering element 50 and the back-up filtering element 60, via the association of the mounting guides 45, 55, 65, is locked relative to the external structure 20 via the association of the mounting guides 45, 55, 65 with the mounting guide 15 affixed to the structure of the air filter system 1, such that, when the air filter system 1 is completely mounted, the association of all the mounting guides 15, 45, 55, 65 achieves the restriction of all the degrees of freedom of the internal structure 40 and of the filtering element (s) 50, 60 relative to the external structure without it being necessary, however, to achieve said affixing via affixing elements in operations requiring the use of tools or that are highly complex.
  • the association of the mounting guides 15, 45, 55, 65 consists in the superposed mounting of complementary geometries arising, in one embodiment of the invention, in a single region of the assembly.
  • mounting "in a single region of the assembly” is understood to consist in the possibility of mounting the mounting guides 15, 45, 55, 65 so as to be superposed on one another such that the internal geometry of one serves as a guide for the mounting of the subsequent one, and so on.
  • the advantage of including all the guide elements arranged in a single region of the assembly is that any forces are distributed homogeneously amongst all the associated components and furthermore the formation of mechanical forces between them is prevented.
  • This mounting 15, 45, 55, 65 also acts as a failsafe system to prevent incorrect mounting.
  • the filtering element comprising: a geometry capable of allowing juxtaposed mounting with an internal structure; at least one mounting guide region for engagement of the filtering element with the internal structure; and at least one sealing region capable of preventing fluid communication between an inlet region for fluid to be filtered and an outlet region for filtered fluid, in addition to the supporting internal structure for a filtering element, comprising: a fluid passage region; a filtering element guide region; and a region for affixing to the external structure, wherein: the fluid passage region is provided with openings capable of allowing the passage of the filtered fluid; the filtering element guide region is provided with a mounting guide projection for engagement in a mounting guide recess of the filtering element; and the region for affixing to the external structure is provided with a support base and at least one region for aff
  • an air filter system comprising a back-up filter for preventing the ingress of particulates when the principal filter is being replaced and furthermore acting as principal filtering element when the principal filter is damaged during use, in addition to an air filter system that allows the segmentation of the conventional parts of a filter system and guarantees the association thereof in a simple and effective manner, preventing the occurrence of drawbacks such as: mounting in an incorrect position; movement during operation; noise generation; inter alia, is totally achieved via an air filter system comprising: an external structure; an internal structure; a principal filtering element; and a back-up filtering element 60; the internal structure being associated in a cooperating manner with the external structure; the back-up filtering element being arranged in a juxtaposed manner with the at least one surface region of the internal structure, the surface of the internal structure being provided with openings capable of allowing passage of a fluid to be filtered; and the internal structure, the external structure, the principal filtering element and the backup filtering element being associated with one another by means of

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

Abstract

La présente invention se rapporte au secteur automobile et à l'ingénierie mécanique, et concerne un élément filtrant, une structure de support pour un élément filtrant, et un système de filtre à air pour un moteur à combustion interne, qui améliorent le montage et le remplacement de filtres à air et réduisent en outre le gaspillage de matière première impliquée dans des parties de faible usure par utilisation de filtres à air. Le système de filtre à air comprend : une structure externe (20) ; une structure interne (40) associée de manière coopérative à la structure externe (20) et ayant des ouvertures (46) capables de permettre le passage d'un fluide à filtrer ; et un élément filtrant principal (50) disposé entre la structure externe (20) et la structure interne (40), étant un ensemble formé par la structure interne (40), la structure externe (20) et l'élément filtrant principal (50) associés au moyen d'une prise de guides de montage (45, 55, 65) pour conférer un synchronisme de mouvement angulaire relatif entre ledit ensemble et la structure externe (20).
PCT/EP2016/081991 2015-12-23 2016-12-20 Système de filtre à air, élément filtrant de filtre à air de moteur, et structure interne de support pour un élément filtrant de filtre à air de moteur WO2017108835A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR102015032477-4A BR102015032477A2 (pt) 2015-12-23 2015-12-23 Air filtering system, filtering element of an air filter of an engine and internal support structure for a filtering element of an air filter of an engine ???
BRBR102015032477.4 2015-12-23

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WO2017108835A1 true WO2017108835A1 (fr) 2017-06-29

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WO (1) WO2017108835A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109715264A (zh) * 2016-09-15 2019-05-03 马勒国际有限公司 空气过滤器
DE102018117995A1 (de) * 2018-07-25 2020-01-30 Mann+Hummel Gmbh Filtereinsatz zum austauschbaren Einbau in ein Filtergehäuse eines Filters für Fluid und Filter
CN111569564A (zh) * 2020-05-07 2020-08-25 赵越 一种机械式矿热炉除尘装置
USD958288S1 (en) 2020-10-09 2022-07-19 Mahle International Gmbh Filter device
US11478741B2 (en) 2002-10-28 2022-10-25 Donaldson Company, Inc. Air cleaner; replaceable filter cartridges; and, methods
US11511217B2 (en) 2020-09-22 2022-11-29 Mahle International Gmbh Filter and method of fabricating same
EP4311593A1 (fr) * 2022-07-25 2024-01-31 Donaldson Company, Inc. Éléments et ensembles filtre

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116036756A (zh) * 2023-03-31 2023-05-02 深圳市昱森机电有限公司 一种电机进风过滤装置

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EP1558360A1 (fr) 2002-10-28 2005-08-03 Donaldson Company, Inc. Filtre a air, cartouches de filtres rempla ables et procedes
US20090100813A1 (en) * 2007-07-20 2009-04-23 Donaldson Company, Inc Air cleaner arrangements; components; and, methods
US20100146917A1 (en) * 2006-10-06 2010-06-17 Donaldson Company Inc. Air cleaner, replaceable filter cartridges, and methods
US20130086877A1 (en) * 2011-10-05 2013-04-11 Mann+Hummel Gmbh Filter cartridge system
US20130199138A1 (en) * 2004-08-25 2013-08-08 Donaldson Company, Inc. Air cleaner; replaceable filter cartridges; and, methods
US8864865B2 (en) 2011-06-15 2014-10-21 Mann+Hummel Gmbh Air filter element, filter housing and filter arrangement
DE102014012948A1 (de) 2013-09-02 2015-06-18 Mann + Hummel Gmbh Filtersystem und Filterelement für ein Filtersystem

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Publication number Priority date Publication date Assignee Title
EP1558360A1 (fr) 2002-10-28 2005-08-03 Donaldson Company, Inc. Filtre a air, cartouches de filtres rempla ables et procedes
US20130199138A1 (en) * 2004-08-25 2013-08-08 Donaldson Company, Inc. Air cleaner; replaceable filter cartridges; and, methods
US20100146917A1 (en) * 2006-10-06 2010-06-17 Donaldson Company Inc. Air cleaner, replaceable filter cartridges, and methods
US20090100813A1 (en) * 2007-07-20 2009-04-23 Donaldson Company, Inc Air cleaner arrangements; components; and, methods
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DE102014012948A1 (de) 2013-09-02 2015-06-18 Mann + Hummel Gmbh Filtersystem und Filterelement für ein Filtersystem

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11478741B2 (en) 2002-10-28 2022-10-25 Donaldson Company, Inc. Air cleaner; replaceable filter cartridges; and, methods
CN109715264A (zh) * 2016-09-15 2019-05-03 马勒国际有限公司 空气过滤器
US10556199B2 (en) 2016-09-15 2020-02-11 Mahle International Gmbh Air filter
CN109715264B (zh) * 2016-09-15 2021-03-16 马勒国际有限公司 空气过滤器
DE102018117995A1 (de) * 2018-07-25 2020-01-30 Mann+Hummel Gmbh Filtereinsatz zum austauschbaren Einbau in ein Filtergehäuse eines Filters für Fluid und Filter
CN111569564A (zh) * 2020-05-07 2020-08-25 赵越 一种机械式矿热炉除尘装置
US11511217B2 (en) 2020-09-22 2022-11-29 Mahle International Gmbh Filter and method of fabricating same
USD958288S1 (en) 2020-10-09 2022-07-19 Mahle International Gmbh Filter device
EP4311593A1 (fr) * 2022-07-25 2024-01-31 Donaldson Company, Inc. Éléments et ensembles filtre
WO2024026310A1 (fr) * 2022-07-25 2024-02-01 Donaldson Company, Inc. Éléments filtrants et ensembles

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