EP2011990B1 - Boitiers pour filtres à air de moteurs à combustion interne et procédé destiné à sa fabrication - Google Patents

Boitiers pour filtres à air de moteurs à combustion interne et procédé destiné à sa fabrication Download PDF

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Publication number
EP2011990B1
EP2011990B1 EP08159560.5A EP08159560A EP2011990B1 EP 2011990 B1 EP2011990 B1 EP 2011990B1 EP 08159560 A EP08159560 A EP 08159560A EP 2011990 B1 EP2011990 B1 EP 2011990B1
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EP
European Patent Office
Prior art keywords
housing
duct
shell
engine
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.)
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Application number
EP08159560.5A
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German (de)
English (en)
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EP2011990A3 (fr
EP2011990A2 (fr
Inventor
Umberto Cornaglia
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
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Officine Metallurgiche G Cornaglia SpA
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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
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
    • F02M35/10222—Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
    • 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
    • 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
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
    • F02M35/10026—Plenum chambers
    • 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
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10314—Materials for intake systems
    • F02M35/10321—Plastics; Composites; Rubbers
    • 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
    • F02M35/10—Air intakes; Induction systems
    • F02M35/1034—Manufacturing and assembling intake systems
    • F02M35/10354—Joining multiple sections together
    • F02M35/1036—Joining multiple sections together by welding, bonding or the like
    • 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

Definitions

  • the present invention concerns a. housing for air filters of internal combustion engines, and a method of manufacturing said housing.
  • Internal combustion engines are generally equipped with an air intake system including a separator device or air filter.
  • the air filter intercepts the flow of air sucked in by the motor from the external environment during the intake phase and separates particles with too big a size, which could damage the engine.
  • Conventional air filters generally are formed by a housing where a seat for accommodating a filtering element is defined.
  • the filtering element consists of a replaceable cartridge, made for instance of corrugated paper.
  • the cartridge body divides the space inside the filter housing into two zones: a first zone where air to be filtered arrives and the retained material is collected, and a second zone from which air filtered by the cartridge leaves the filter.
  • Each zone further has an opening, generally equipped with a ring nut, for connection to an inlet duct through which air sucked in from the environment arrives at the filter, and to an outlet duct conveying the filtered air to the intake manifold of the engine, respectively.
  • the housing can generally be opened to allow replacing the cartridge and removing deposits, if any, accumulated in the intake zone.
  • internal combustion engines can be either housed in a suitable compartment, called engine compartment, for instance in case of engines of vehicles, or secured to a frame or supporting structure, for instance in case of static applications, such as engines of hydraulic pumps, current generators, power take-offs, and so on.
  • the space occupied by the engine whether it is an engine compartment in a vehicle or a supporting structure, generally contains a lot of ancillary devices, hydraulic and electric circuits, conduits of different kinds and so on, slaved to the operation of the engine or other devices associated with the engine.
  • one of the circuits generally present in an internal combustion engine is the circuit for recovering the blow-by gases.
  • the hydraulic connection between the base and the intake circuit for blow-by gas return is generally obtained by means of a duct, possibly secured to the engine parts and/or other surrounding components by means of straps or clamps.
  • US 2003/226553 describes a blowby gas processing system which includes a breather tube extended from a breather port of an engine and connected to a connecting tube.
  • a breather tube inside which an intake passage connecting a carburetor and an air cleaner is formed and an expanded part provided with a gas-liquid separating chamber adjacent to the intake massage are provided.
  • An entrance joint connecting a lower part of the gas-liquid separating camber to the breather tube is integrated on one side of the connecting tube and a blowby gas exit communicating the upside of the gas-liquid separating chamber with the intake passage is provided in a partition between the gas-liquid separating chamber and the intake passage.
  • the system is a low cost system having a simplified design enabling oil to be separated from blowby gas without having to include a special oil separator thank before the breather tube.
  • EP-A-1 447 533 discloses an apparatus for circulating a blowby gas to engine cylinders in an internal combustion engine, including a cylinder head cover (2) including a first wall (2B) defining a first passage (11), and a first flange (2A) outwardly expending from the first wall (2B), and a cylinder head (1) including a second wall (1A) and a second flange (12) cooperating with the first flange (2A) to form an abutting surface (P) therebetween on which a second passage (13) is arranged.
  • the second passage (13) is connected with the first massage (11) and extending in a direction of a row of the engine cylinders.
  • the second wall (1A) defines a plurality of third passages (14) each having one end that is open to the second flange (12) and communicated with the second passage (13) and an opposite end open to an intake port (6) of each of the engine cylinders .
  • US-A-4 653 457 relates to a crankcase breather for use in the air cleaner of the type used on an internal combustion engine.
  • the crankcase breather is provided with a grooved, raised boss retainer portion on the outboard wall of the air filter container portion of the crankcase breather so as to encircle the nipple of the crankcase breather and the outer housing shell of the air cleaner is provided with a conforming aperture so that a part of the outer housing shell is received in the groove thus permitting the rest of the praised boss retainer portion to be snapped into locking engagement with the material edges defining the aperture .
  • EP-A-0 741 242 describes an intake circuit unit which consists of a housing (2) with an air outlet (3), an air intake, and a crankcase gas intake (5).
  • the crankcase gas intake interacts with deflectors (6) inside the housing which guide the gases towards the housing wall.
  • Each deflector is in the form of a tabular element linked to the crankcase intake and extending along the housing wall. It is closed at one end and has an opening (8) at the other directed towards the wall.
  • the gas intake deflectors are made in one piece with the housing and are basically semi-circular in cross-section.
  • FR-A-1 544 415 discloses an air filter for internal combustion engines, in particular having a housing which is intended to receives the filtering cartridge.
  • the housing comprises an upper and lower half-shell which are connected to each other.
  • the lower shell comprises an intake duct which is made in a single piece with such duct, and a further auxiliary intake duct which can receive the blow-by gases coming from the internal combustion engine and intended to be filtered by the partridge contained in the housing .
  • One of the advantages of the invention is the reduction of the number of separate ducts concerning the operation of an internal combustion engine and the consequent rationalisation of the arrangement of the parts.
  • Another advantage of the invention is the reduction of the overall size of the devices associated with the engine,
  • the duct is preferably integrated into the wall of the housing of the air filter, the space inside the housing is not significantly reduced, whereby pressure drops are avoided.
  • a further but not the last advantage of the invention is the reduction of the manufacturing costs, thanks to the possibility of obtaining at least one section of an ancillary duct at substantially the same cost as the filter housing.
  • reference numeral 11 generally denotes the housing for an air filter, in a preferred embodiment of the invention intended e.g. for use in the intake system applied to the diesel cycle internal combustion engine of a vehicle.
  • housing 11 includes a hollow shell 13, preferably made of two parts 15, 17, e.g. of moulded plastics, joined together, for instance welded. along the corresponding peripheral edge 19, 21, respectively.
  • lower part 15 of shell 13 is divided by a partition 15c into two zones 15a, 15b.
  • the first zone 15a has an opening 23 intended to be associated with the outlet duct supplying air to the intake manifold of the engine, whilst the second zone 15b has an opening 25 intended to be associated with the duct for air intake from the outside.
  • Upper part 17 of shell 13 correspondingly has a pair of windows 17a and 17b, respectively, and a partition 17c, which are superimposed to zones 15a, 15b and partition 15c of lower part 15 when shell 13 is assembled.
  • Shell 13 further includes a cover 27 closing openings 17a and 17b and housing a filtering element.
  • shell 13 has associated therewith a duct 29 that is advantageously used in a circuit other than that of the intake system where housing 11 of air filter described herein is included.
  • said duct 29 can advantageously be used in the circuit for recovering the blow-by gases coming from the base of the internal combustion engine.
  • Said duct 29 is preferably equipped, at its opposite ends 31, 33, with respective fast couplings 35 allowing associating the pipes, generally flexible rubber pipes, of the circuit for recovering the blow-by gases with duct 29.
  • a first portion 29a of duct 29 is formed in lower part 15 of shell 13, and a second portion 29b is formed in upper part 17.
  • Each portion 29a, 29b is equipped with a corresponding portion of a connector 37a, 37b, e.g. of the male-female kind. Said portions 37a, 37b are joined together, for instance by welding or simply by fitting, while edges 19, 21 are being joined for assembling shell 13.
  • both portions 29a, 29b of duct 29 are L-shaped and define a radial first section 39a, 39b, respectively, coming out from shell 13, and an axial second section 41a, 41b, respectively, substantially perpendicular to the radial first section 39a, 39b and extending inside shell 13.
  • Radial sections 39a, 39b coming out from shell 13 are moreover substantially diametrically opposite.
  • said duct 29 is preferably integrated into the respective wall 43, 45 of the corresponding part 15, 17 of shell 13.
  • duct 29, after shell 13 has been assembled extends without interruption. Yet, duct 29 could even be interrupted or could have windows or openings on its wall, should said duct be used for instance for the passage of cables or pipes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Filtering Materials (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Claims (11)

  1. Boîtier (11) destiné à un filtre à air d'un moteur à combustion interne, le boîtier comprenant une enveloppe (13) comportant une ouverture d'entrée (25) et une ouverture de sortie (23) destinées, respectivement, au flux d'entrée d'air à filtrer et au flux de sortie d'air filtré, ladite ouverture d'entrée (25) pouvant être associée à la conduite du système d'admission du moteur pour une admission d'air provenant de l'extérieur et ladite ouverture de sortie (23) pouvant être associée à la conduite de sortie du système d'admission du moteur pour une alimentation en air du moteur, ce par quoi ledit boîtier peut être compris dans ledit système d'admission du moteur au moyen desdites ouvertures d'entrée et de sortie, ledit boîtier (11) comprenant en outre au moins une conduite (29) associée à ladite enveloppe (13) ; ledit boîtier étant caractérisé en ce que ladite conduite (29) s'étend entre des extrémités opposées respectives qui mènent toutes les deux à un circuit autre que celui du système d'admission d'air du moteur.
  2. Boîtier selon la revendication 1, dans lequel ladite enveloppe (13) est constituée d'au moins deux parties (15, 17) de matière plastique moulée, liées l'une à l'autre le long du bord périphérique correspondant (19, 21),
    une première partie (29a) de ladite conduite (29) étant formée dans une première partie (15) de l'enveloppe (13), et une seconde partie (29b) de ladite conduite (29) étant formée dans une seconde partie (17).
  3. Boîtier selon la revendication 2, dans lequel chaque partie (29a, 29b) de ladite conduite (29) est équipée d'une partie correspondante d'un dispositif de raccordement (37a, 37b).
  4. Boîtier selon la revendication 3, dans lequel ledit dispositif de raccordement est du type mâle-femelle.
  5. Boîtier selon la revendication 4, dans lequel lesdites parties (29a, 29b) de la conduite (29) ont une forme de L et définissent une première section radiale (39a, 39b) sortant de ladite enveloppe (13), et une seconde section axiale (41a, 41b) sensiblement perpendiculaire à la première section.
  6. Boîtier selon la revendication 5, dans lequel lesdites sections radiales (39a, 39b) sortant de l'enveloppe (13) sont sensiblement diamétralement opposées.
  7. Boîtier selon l'une quelconque des revendications précédentes, dans lequel ladite conduite (29) s'étend sans interruption.
  8. Boîtier selon l'une quelconque des revendications précédentes, dans lequel ladite conduite (29) est équipée, au niveau de ses extrémités opposées (31, 33), de raccords rapides respectifs (35) permettant d'associer les conduites des circuits pour récupérer les gaz de contournement de pistons dudit moteur au moyen de ladite conduite (29).
  9. Filtre à air destiné à un moteur à combustion interne, caractérisé en ce qu'il comprend un boîtier selon l'une quelconque des revendications 1 à 8.
  10. Procédé de fabrication d'un boîtier (11) destiné à un filtre à air de moteurs à combustion interne selon l'une quelconque des revendications précédentes, comprenant les étapes consistant à :
    - former une enveloppe (13) comportant une ouverture d'entrée (25) destiné à de l'air à filtrer et une ouverture de sortie (23) destinée à l'air filtré, ladite ouverture d'entrée (25) pouvant être associée à la conduite du système d'admission du moteur pour une admission d'air provenant de l'extérieur et ladite ouverture de sortie (23) pouvant être associée à la conduite de sortie du système d'admission du moteur pour une alimentation en air du moteur, ce par quoi ledit boîtier peut être compris dans ledit système d'admission du moteur au moyen desdites ouvertures d'entrée et de sortie ;
    - équiper ledit boîtier (11) d'au moins une conduite (29) associée à ladite enveloppe (13) ;
    - ledit procédé étant caractérisé en ce qu'il comprend les étapes consistant à concevoir ladite au moins une conduite (29) pour qu'elle s'étende entre des extrémités opposées respectives qui mènent à un circuit autre que celui du système d'admission d'air du moteur.
  11. Procédé selon la revendication 10, dans lequel ladite enveloppe (13) est constituée de matière plastique et est formée par les étapes consistant à :
    - mouler une première partie (15) et une seconde partie (17) de ladite enveloppe (13) ; et
    - souder l'une à l'autre lesdites parties (15, 17) de façon à former ladite enveloppe (13) ;
    dans lequel une première partie (29a) de ladite conduite (29) est formée sur une première partie de ladite enveloppe (13), et une seconde partie (29b) de ladite conduite (29) est formée sur une seconde partie de ladite enveloppe (13).
EP08159560.5A 2007-07-06 2008-07-02 Boitiers pour filtres à air de moteurs à combustion interne et procédé destiné à sa fabrication Active EP2011990B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO20070493 ITTO20070493A1 (it) 2007-07-06 2007-07-06 Involucro per filtri aria di motori a combustione interna e metodo per la sua realizzazione.

Publications (3)

Publication Number Publication Date
EP2011990A2 EP2011990A2 (fr) 2009-01-07
EP2011990A3 EP2011990A3 (fr) 2009-02-04
EP2011990B1 true EP2011990B1 (fr) 2015-07-01

Family

ID=39758455

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08159560.5A Active EP2011990B1 (fr) 2007-07-06 2008-07-02 Boitiers pour filtres à air de moteurs à combustion interne et procédé destiné à sa fabrication

Country Status (2)

Country Link
EP (1) EP2011990B1 (fr)
IT (1) ITTO20070493A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104948357A (zh) * 2015-06-08 2015-09-30 南京金龙新能源汽车研究院有限公司 一种空气滤清器安装组件

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR544415A (fr) 1920-12-14 1922-09-22 Westinghouse Electric & Mfg Co Perfectionnements aux systèmes de contrôle des moteurs électriques
FR1544415A (fr) * 1966-11-17 1968-10-31 Gen Motors Ltd Filtre à air pour moteur à combustion interne
US4653457A (en) 1986-03-21 1987-03-31 General Motors Corporation Air cleaner with crankcase breather assembly
US5023111A (en) 1988-08-10 1991-06-11 Spectra, Inc. Treatment of hot melt ink images
FR2733799B1 (fr) 1995-05-05 1997-06-13 Renault Element de circuit d'admission d'air pour moteur a combustion interne
JP4015475B2 (ja) 2002-06-07 2007-11-28 本田技研工業株式会社 エンジンのブローバイガス処理装置
JP4213968B2 (ja) * 2003-02-14 2009-01-28 愛知機械工業株式会社 内燃機関のブローバイガス還流装置

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Publication number Publication date
EP2011990A3 (fr) 2009-02-04
ITTO20070493A1 (it) 2009-01-07
EP2011990A2 (fr) 2009-01-07

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