EP2256329A1 - Luftfiltergehäuse für Brennkraftmaschinen und Luftfilter umfassendes Gehäuse - Google Patents

Luftfiltergehäuse für Brennkraftmaschinen und Luftfilter umfassendes Gehäuse Download PDF

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Publication number
EP2256329A1
EP2256329A1 EP10164146A EP10164146A EP2256329A1 EP 2256329 A1 EP2256329 A1 EP 2256329A1 EP 10164146 A EP10164146 A EP 10164146A EP 10164146 A EP10164146 A EP 10164146A EP 2256329 A1 EP2256329 A1 EP 2256329A1
Authority
EP
European Patent Office
Prior art keywords
holding recess
cover
housing
filtering element
air
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.)
Granted
Application number
EP10164146A
Other languages
English (en)
French (fr)
Other versions
EP2256329B1 (de
Inventor
Umberto Cornaglia
Daniele Valerio Esposito
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.)
Officine Metallurgiche G Cornaglia SpA
Stellantis Europe SpA
Original Assignee
Officine Metallurgiche G Cornaglia SpA
Fiat Group Automobiles SpA
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 Officine Metallurgiche G Cornaglia SpA, Fiat Group Automobiles SpA filed Critical Officine Metallurgiche G Cornaglia SpA
Publication of EP2256329A1 publication Critical patent/EP2256329A1/de
Application granted granted Critical
Publication of EP2256329B1 publication Critical patent/EP2256329B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/0201—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof
    • F02M35/0202—Manufacturing or assembling; Materials for air cleaner housings
    • F02M35/0203—Manufacturing or assembling; Materials for air cleaner housings by using clamps, catches, locks or the like, e.g. for disposable plug-in filter cartridges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/024—Air cleaners using filters, e.g. moistened

Definitions

  • the present invention relates to a housing of air filter for internal combustion engines, and to an air filter incorporating said housing.
  • the air filter consists of a cartridge of filtering material, housed within a sealed housing, mainly equipped with air inlet and outlet ports and with a holding recess for the cartridge. Inside the housing, there is defined a path compelling the inflowing air to pass through the cartridge before flowing out through the outlet port.
  • the cartridge may be made for instance of pleated paper and be of different shapes and sizes.
  • EP 1 433 947 discloses an air filter for IC engines including a housing, a cartridge equipped with a fluid-tight gasket, and air inlet and outlet ports.
  • the cartridge is housed within the housing in a seat closed by a removable cover, which is secured to the housing by means of screws arranged along a cover edge cooperating with a corresponding edge of the housing in order to sandwich the cartridge gasket therebetween, to ensure the required fluid seal between the cartridge and the housing.
  • EP 1 593 834 discloses another example of a housing for an air filter, which can be located in the upper part of the engine compartment.
  • a seat for the filtering element communicating with air inlet and outlet ducts is provided and the housing includes a cover secured by means of screws along an abutment edge retaining the gasket for the cartridge.
  • FR 2 922 269 discloses a further example of a housing for an air filter for IC engines, including a container equipped with a cover and a side opening for the introduction of the filtering cartridge, which is surrounded by a frame equipped with a gasket. The frame and the gasket are sandwiched between the container and the cover when the housing is closed.
  • the housings of air filters are to be designed so as to meet two requirements that not always are compatible: on the one side, the housing is to internally define an air flow path such that air flows through the cartridge, which in turn is to be sized so as to meet the needs of the engine the filter is associated with, and on the other side the housing is to fit to the conformation of the engine and the other devices associated therewith, and in particular to the available room in the engine compartment.
  • the prior art devices are not sufficiently compact to meet the modern requirements of size reduction, and thus it is a main object of the present invention to provide a housing of air filter for internal combustion engines, which has a reduced size while maintaining a considerable filtering capacity.
  • the fluid seal between the gasket surrounding the filtering element and the mechanical fastening between the cover and the container of the housing take place in non-coplanar areas. More particularly, according to the invention, the fluid seal and the abutment between the cover and the container of the housing are defined in different planes, preferably in substantially parallel planes. Thanks to this feature, it is advantageously possible to reduce the housing thickness so that it is very close to the thickness of the filtering element only.
  • the filter generally maintains a high filtering capacity, determined by the wide surface for passage of air towards the holding recess in which the cartridge is held and from the holding recess towards the outlet duct.
  • the housing of air filter for internal combustion engines according to the invention is thus extremely thin and compact and it can be located also in engine compartments of small cars, for instance runabouts, in particular between the engine and the bonnet.
  • Another advantage of the invention is the possibility of making the housing by using a reduced number of components.
  • a further, but not the last, advantage of the invention is that the housing made in this manner is aesthetically appealing tanks to the provision of a substantially flat top shell, of which the shape and the size can moreover be defined at will, for instance in order to hide engine components.
  • the housing of air filter for internal combustion engines according to the invention has been generally denoted by reference numeral 11 and is shown from above, i.e. substantially as it would appear when opening the bonnet of a vehicle into which the filter is incorporated according to a standard arrangement.
  • housing 11 includes a container 13 where a holding recess 15 housing a removable cover 31 is defined.
  • a duct 19 for the dirty air, equipped with an aperture 21 for the entrance of air to be filtered, and a duct 23 for the cleaned air, equipped with an aperture 25 for the exit of the filtered air, are further defined in container 13
  • Container 13 further includes an upper base 27, substantially made as a shell in the illustrated example, which further preferably defines a corresponding upper portion of the walls of ducts 19 and 23. Said base 27 moreover closes upwards one of the bases of holding recess 15 and preferably it is permanently associated with container 13, for instance by welding or gluing, when housing 11 is being made.
  • Holding recess 15 is further equipped in its lower portion, i.e. on the side opposite upper base 27, with an aperture 29 through which removable cover 31 can be introduced into holding recess 15, until closing said aperture 29.
  • holding recess 15 has a substantially prismatic shape, preferably a parallelepiped shape with two parallel opposite short walls 15a and two parallel opposite long walls 15b.
  • cover 31 into holding recess 15 takes place according to an approach direction substantially parallel to said side walls 15a, 15b of holding recess 15 and, in the illustrated embodiment, substantially perpendicular to the portion of upper base 27 closing holding recess 15 upwards.
  • Dirty air duct 19 communicates with holding recess 15 through an aperture 20 provided along one of the side walls of said holding recess 15.
  • aperture 20 is located on one of the long side walls 15b of holding recess 15.
  • Clean air duct 23 communicates with holding recess 15 through a passageway 24 defined between base 27 and the side walls of holding recess 15.
  • said passageway 24 substantially extends between base 27 and two adjacent side walls 15a, 15b.
  • Cover 31 internally houses a filtering element 17, which may include a prism-shaped or, in the illustrated example, parallelepiped-shaped cartridge.
  • the cartridge may be obtained by means of a corresponding panel of pleated paper or other material with appropriate separation properties.
  • the cartridge will be further provided with a peripheral sealing gasket 17a, preferably integrated and made of plastic material, for instance a polyurethane foam. Said gasket 17a extends around the panel defining filtering element 17 and projects radially outwards from the side walls of said filtering element 17.
  • Cover 31 includes a body with complementary shape to holding recess 15, thus substantially parallelepiped-shaped in the illustrated example, with a base 30 and two parallel opposite short walls 31a and two parallel opposite long walls 31b. Walls 31a, 31b surround a holding recess 32, parallelepiped-shaped in the illustrated example, housing filtering element 17.
  • An aperture 22 is provided on the wall of cover 31 facing air inlet aperture 20 when cover 31 is housed in holding recess 15.
  • said aperture 22 is provided on one of long walls 31b.
  • Said walls 31a, 31b are further provided with a peripheral edge 36 projecting radially outwards from walls 31a, 31b, and preferably extending without interruptions around the whole cover 31.
  • Said edge 36 forms a corresponding abutment for cover 31, allowing the mechanical fastening of cover 31 into holding recess 15.
  • Cover 31 may be fastened to container 13 by means of fastening means, such as for instance screws 33 passing through holes provided in abutment edge 36 and intended to engage container 13. By removing screws 33, cover 31 can therefore be removed from holding recess 15, to allow replacing filtering element 17 located inside cover 31.
  • Removal of cover 31 from holding recess 15 takes place according to a removal direction substantially parallel to said side walls 15a, 15b of holding recess 15 and, in the illustrated embodiment, substantially perpendicular to the portion of upper base 27 closing holding recess 15 upwards.
  • the depth of holding recess 32 is chosen so that filtering element 17 can be received in recess 32 by leaving the portion surrounded by peripheral gasket 17a outside, and said gasket will abut against the axially sealing free edge 34 of side walls 31a, 31b of cover 31.
  • the depth of holding recess 15 defined in container 13 is chosen so that, when cover 31 is introduced into holding recess 15 and edge 36 abuts against the corresponding abutment edge 18 of walls 15a, 15b of holding recess 15, gasket 17a is in contact with a peripheral sealing edge 16 projecting into holding recess 15 and extending on a plane spaced apart from base 27 in order to define passageway 24 between said sealing edge 16 and base 27.
  • sealing edge 16 and edge 34 being to define the fluid seal with gasket 17a, preferably extend each on a respective single plane and without interruptions.
  • the fluid seal between gasket 17a surrounding filtering element 17 and the mechanical fastening between cover 31 and container 13 take place in separate areas, more precisely non-coplanar areas.
  • the fluid seal and the abutment between cover 31 and container 13 are defined on different planes.
  • the plane on which the mechanical fastening between cover 31 and holding recess 15 occurs is indeed separate from the plane on which fluid seal is determined thanks to gasket 17a.
  • abutment edge 36 for fastening screws 33 lies on a plane other than that on which gasket 17a extends. Said planes are spaced apart by a distance of the order of the thickness of cover 31, and consequently of the order of the thickness of filtering element 17, typically a few centimetres, for instance in the range 3 to 10 cm.
  • clean air duct 23 extends over at least part of two adjacent walls of holding recess 15, which in the illustrated example are a short wall 15a and a long wall 15b of said holding recess 15 and, correspondingly, of cover 31, and are parallel to transversal axis "T" and longitudinal axis "L", respectively. More precisely, always referring to the illustrated example, a first section 23a of duct 23 extends along short wall 15a of holding recess 15 and a second section 23b extends along the adjacent long wall 15b. Moreover, ducts 19, 23 will preferably have a wall portion in common with walls 15a, 15b.
  • dirty air duct 19 besides extending over at least part of one of the walls (long wall 15b in the illustrated example), also has a corresponding section 19a extending along base 30 of said cover 31.
  • clean air duct 23 besides extending along at least part of two adjacent walls of holding recess 15, as said above, also extends along that portion of base 27 defining the base of said holding recess 15, thereby defining passageway 24 for clean air outflow.
  • dirty air inlet duct 21 preferably extends along part of the same long wall 15b of holding recess 15 along which section 23b of clean air outlet duct 23 extends.
  • the housing according to the invention is extremely compact in the direction of both longitudinal axis "L” and transversal axis "T",
  • filtering element 17 is substantially laterally surrounded by walls 31a, 31b of cover 31.
  • Said region 14 is positioned in cover 31 at an intermediate location, always with reference to the vertical direction of axis "V", so that, when cover 31 is housed in holding recess 15, in said holding recess 15 there are defined a first portion with thickness "d1" (lower portion in Fig. 5 ), associated with aperture 20 of dirty air duct 19, a second portion with thickness “d2" (upper portion in Fig. 5 ), associated with clean air passageway 24 and a third portion, or intermediate region 14, with thickness "d3", in which filtering element 17 is arranged.
  • housing 11 cab be advantageously made by assembling a reduced number of components, each obtained by moulding plastic materials.
  • housing 11 is substantially made of three parts, namely a single container, integrating air inlet and outlet ducts 19, 23 and walls 15a, 15b of holding recess 15, shell-shaped upper base 27 and cover 31.
  • the single container integrating air inlet and outlet ducts 19, 23 and walls 15a, 15b of holding recess 15 is preferably permanently joined with base 27 by welding or gluing, whereas cover 31 is removably joined with the walls of holding recess 15.
  • said three parts possibly have associated therewith fittings mainly intended to contribute to noise reduction, to allow associating the housing with the air circuit and to allow fastening the housing to the engine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
EP20100164146 2009-05-27 2010-05-27 Luftfiltergehäuse für Brennkraftmaschinen und Luftfilter umfassendes Gehäuse Active EP2256329B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO2009A000407A IT1395646B1 (it) 2009-05-27 2009-05-27 Involucro per filtro aria di motori a combustione interna

Publications (2)

Publication Number Publication Date
EP2256329A1 true EP2256329A1 (de) 2010-12-01
EP2256329B1 EP2256329B1 (de) 2012-05-23

Family

ID=41445497

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20100164146 Active EP2256329B1 (de) 2009-05-27 2010-05-27 Luftfiltergehäuse für Brennkraftmaschinen und Luftfilter umfassendes Gehäuse

Country Status (3)

Country Link
EP (1) EP2256329B1 (de)
ES (1) ES2388247T3 (de)
IT (1) IT1395646B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180195472A1 (en) * 2017-01-11 2018-07-12 Toyota Boshoku Kabushiki Kaisha Air cleaner for internal combustion engine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE948208C (de) * 1954-09-24 1956-08-30 Steyr Daimler Puch Ag Ansauggeraeuschdaempfer, insbesondere fuer Leichtmotorraeder od. dgl.
US4861359A (en) * 1989-02-10 1989-08-29 Allied-Signal Inc. Dual function air filter
EP1433947A2 (de) 2002-12-24 2004-06-30 OFFICINE METALLURGICHE G. CORNAGLIA S.p.A. Luftfiltervorrichtung für Brennkraftmaschine
EP1593834A2 (de) 2004-05-07 2005-11-09 Sogefi Filtration do Brasil Ltda Luftfilterzusammenbau Module
FR2922269A1 (fr) 2007-10-16 2009-04-17 Mark Iv Systemes Moteurs Soc P Dispositif de filtre a air et vehicule comprenant un tel dispositif.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE948208C (de) * 1954-09-24 1956-08-30 Steyr Daimler Puch Ag Ansauggeraeuschdaempfer, insbesondere fuer Leichtmotorraeder od. dgl.
US4861359A (en) * 1989-02-10 1989-08-29 Allied-Signal Inc. Dual function air filter
EP1433947A2 (de) 2002-12-24 2004-06-30 OFFICINE METALLURGICHE G. CORNAGLIA S.p.A. Luftfiltervorrichtung für Brennkraftmaschine
EP1593834A2 (de) 2004-05-07 2005-11-09 Sogefi Filtration do Brasil Ltda Luftfilterzusammenbau Module
FR2922269A1 (fr) 2007-10-16 2009-04-17 Mark Iv Systemes Moteurs Soc P Dispositif de filtre a air et vehicule comprenant un tel dispositif.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180195472A1 (en) * 2017-01-11 2018-07-12 Toyota Boshoku Kabushiki Kaisha Air cleaner for internal combustion engine
CN108343531A (zh) * 2017-01-11 2018-07-31 丰田纺织株式会社 用于内燃机的空气滤清器
CN108343531B (zh) * 2017-01-11 2020-01-10 丰田纺织株式会社 用于内燃机的空气滤清器
US10550802B2 (en) * 2017-01-11 2020-02-04 Toyota Boshoku Kabushiki Kaisha Air cleaner for internal combustion engine

Also Published As

Publication number Publication date
IT1395646B1 (it) 2012-10-16
EP2256329B1 (de) 2012-05-23
ES2388247T3 (es) 2012-10-11
ITTO20090407A1 (it) 2010-11-28

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