EP0432012A1 - Cylinder head cover with integrated air filter - Google Patents

Cylinder head cover with integrated air filter Download PDF

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Publication number
EP0432012A1
EP0432012A1 EP90403341A EP90403341A EP0432012A1 EP 0432012 A1 EP0432012 A1 EP 0432012A1 EP 90403341 A EP90403341 A EP 90403341A EP 90403341 A EP90403341 A EP 90403341A EP 0432012 A1 EP0432012 A1 EP 0432012A1
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EP
European Patent Office
Prior art keywords
cylinder head
head cover
chamber
engine
molding
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
EP90403341A
Other languages
German (de)
French (fr)
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EP0432012B1 (en
Inventor
Christian Roudeix
Eric Arnoult
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.)
Automobiles Peugeot SA
Automobiles Citroen SA
Original Assignee
Automobiles Peugeot SA
Automobiles Citroen SA
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Publication date
Application filed by Automobiles Peugeot SA, Automobiles Citroen SA filed Critical Automobiles Peugeot SA
Publication of EP0432012A1 publication Critical patent/EP0432012A1/en
Application granted granted Critical
Publication of EP0432012B1 publication Critical patent/EP0432012B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/006—Camshaft or pushrod housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/03—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
    • 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
    • F02M35/04—Air cleaners specially arranged with respect to engine, to intake system or specially adapted to vehicle; Mounting thereon ; Combinations with other devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F02F1/10—Cylinders; Cylinder heads  having cooling means for liquid cooling
    • F02F2001/104—Cylinders; Cylinder heads  having cooling means for liquid cooling using an open deck, i.e. the water jacket is open at the block top face

Definitions

  • the present invention generally relates to a cylinder head cover for an internal combustion engine and more particularly to such a cylinder head cover equipped in particular with an air filter and a decanter for oil from the crankcase gases.
  • a molded metal cylinder head cover attached to the internal combustion engine and connected to the air circuit and to the crankcase gas recovery circuit by numerous hoses and collars, which increases the costs of production and complexity of the powertrain.
  • the object of the present invention is to eliminate the above drawbacks by proposing a cylinder head cover of molded material for an internal combustion engine which comprises an air filter connected to the intake system of the engine and which is integrated by molding. to the cylinder head cover.
  • the cylinder head cover comprises a settling chamber integrated by molding and communicating on the one hand with the engine casing and on the other hand with the intake system so as to suck the gases from the sump separated from oil particles.
  • the decantation chamber comprises a decantation well to which are connected at least two end pieces, integrated by molding in the cylinder head cover, for the connection of the decantation chamber to the casing and to the intake system to the help two communication lines.
  • the cylinder head cover comprises a channel for filling the crankcase oil integrated by molding in the cylinder head cover.
  • the air filter comprises a chamber integrated by molding into the cylinder head cover, intended for the reception of a filter cartridge, the chamber being extended by a chamber for mixing fresh air and hot air also integrated by molding in the cylinder head cover.
  • the air filter further comprises a cover portion, removably attached to the cylinder head cover so as to access the filter cartridge and comprising a connection channel between the decantation chamber and the intake circuit so as to suck up the gases. from the settling chamber.
  • the cylinder head cover comprises external ribs forming a groove integrally molded with the cylinder head cover and intended for fixing the electrical wires of the spark plugs of the engine.
  • oil filling channel is concentric with the settling well.
  • the cylinder head cover according to the invention is fixed to the upper part of the bearing caps of at least one camshaft of the engine.
  • the cylinder head cover is made of a plastic material.
  • the cylinder head cover according to the invention is compact, aesthetic and improves the acoustics of the engine. by filtering out distribution noise.
  • the molded cylinder head cover according to the invention comprises a body 1 serving as a cover in its lower part to the bearing caps of the camshaft (not shown).
  • the body 1 and the caps are assembled one on the other using, for example, fixing screws V.
  • the body 1 comprises several chambers which are distributed close to and contiguous with the lower part forming a cover.
  • the body 1 comprises in a lateral part a chamber 2, extending longitudinally to the axis XX ′ of the camshaft and into which fresh air is supplied by a front end piece 3, integral with the outer wall 2a delimiting the chamber 2, connected to a fresh air intake hose (not shown) connected to an engine air intake (not shown), for example, using a hose clamp.
  • a fresh air intake hose not shown
  • an engine air intake not shown
  • a hose clamp In a lower part of the chamber 2 is formed another end piece 4 intended to be connected to a supply line (not shown) of hot air.
  • This chamber 2 thus connected to the air intake and to an air heating part, connected to the exhaust manifold, makes it possible to obtain a mixture of fresh air and air heated by said manifold.
  • bedroom 2 is located under and adjoins another prismatic chamber 5 which communicates with it by a gas passage (not shown) such as for example an orifice in a common partition separating the two chambers 2 and 5.
  • a cartridge 6 for filtering the fresh air / hot air mixture is removably attached to a lateral face 5a delimiting the chamber 5 approximately comprised in a plane parallel to the vertical plane passing through the axis X-X ′.
  • This lateral face 5a delimits, with the lower wall 1a of the body 1 forming the bearing cover of the engine camshaft, a space for receiving a removable part forming the cover 7, allowing access to the filter cartridge 6.
  • This cover 7 is fixed to the body 1 using two elastic tabs 8 which snap onto protuberances or projections 9 formed, for example by molding, on the upper wall 5b of the chamber 5, and two fixing screws 10 screwing respectively into two bosses 11 secured to the wall 1a.
  • the cover 7 comprises, integral with a wall 13 and opposite to the filter cartridge 6, a connection end piece 14 connected to a hose, fixed for example using a collar, for the passage of the mixture. fresh air / hot air filtered to the engine intake system (not shown).
  • the settling chamber 18 is located laterally to the cover 7 and to the chamber 5 and comprises in its central part a settling well 19, which is substantially cylindrical.
  • the well 19 extends from bottom to top in the settling chamber 18, serves as an oil filling pipe (also referenced 19) concentric with the well 19 and opens at its lower end into the cylinder head (not shown).
  • the well 19 is closed at its upper end by a removable plug 20.
  • the well 19 is provided with a bolt shield grid (not shown).
  • the decantation chamber 18 is connected on the one hand with the engine casing by a hose D1 (symbolized in phantom) connecting to a radial end piece 21 of the decantation chamber 18 and on the other hand with the system of admission by another hose D2 (also symbolized in phantom) which is connected to a second radial nozzle 22 of the chamber 18 similar to the first nozzle 21.
  • hose D1 symbolized in phantom
  • another hose D2 also symbolized in phantom
  • This circuit allows the suction of the engine crankcase gases, after the oil particles suspended in the gas coming from the crankcase have been separated from this gas by decantation on the walls of the chamber 18.
  • the air filter F, the settling chamber 18, and the part forming the cover of the bearing caps of the camshaft are connected in one piece by molding of the body 1.
  • external ribs 23 are formed on a wall of the lower part of the body 1 forming a cover for the camshaft bearing caps. These ribs 23 are integrally molded with the body 1 form combs intended to retain electrical wires of spark plugs of the engine.
  • a compact, simple and economical cylinder head cover was thus produced, making it possible to reduce the time necessary for its assembly and maintenance.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

The present invention relates to a cylinder head cover for an internal combustion engine of cast material. This cylinder head cover comprises an air filter (F) connected to the intake system of the engine, a settlement chamber (18), integrally cast with the body (1) of the cylinder head cover, and a movable part forming a hood (7) intended to permit access to a filter cartridge (6) fixed in a chamber (5) forming only one single part with the body (1). The present invention has applications, for example, on a motor vehicle with internal combustion engine fitted with such a cylinder head cover. <IMAGE>

Description

La présente invention se rapporte en général à un couvre-culasse pour moteur à combustion interne et plus particulièrement à un tel couvre-culasse équipé notamment d'un filtre à air et d'un décanteur d'huile des gaz du carter.The present invention generally relates to a cylinder head cover for an internal combustion engine and more particularly to such a cylinder head cover equipped in particular with an air filter and a decanter for oil from the crankcase gases.

Elle vise également un véhicule automobile à moteur à combustion interne équipé d'un tel couvre-culasse.It also relates to a motor vehicle with an internal combustion engine equipped with such a cylinder head cover.

On connaît dans l'art antérieur un couvre-culasse en métal moulé, fixé au moteur à combustion interne et relié au circuit d'air et au circuit de récupération des gaz de carter par de nombreux durites et colliers, ce qui augmente les coûts de production et la complexité du groupe moto-propulseur.Known in the prior art is a molded metal cylinder head cover, attached to the internal combustion engine and connected to the air circuit and to the crankcase gas recovery circuit by numerous hoses and collars, which increases the costs of production and complexity of the powertrain.

Le but de la présente invention est d'éliminer les inconvénients ci-dessus en proposant un couvre-culasse en matière moulé pour un moteur à combustion interne qui comprend un filtre à air relié au système d'admission du moteur et qui est intégré par moulage au couvre-culasse.The object of the present invention is to eliminate the above drawbacks by proposing a cylinder head cover of molded material for an internal combustion engine which comprises an air filter connected to the intake system of the engine and which is integrated by molding. to the cylinder head cover.

Suivant une autre caractéristique de l'invention, le couvre-culasse comprend une chambre de décantation intégrée par moulage et communiquant d'une part avec le carter du moteur et d'autre part avec le système d'admission de façon à aspirer les gaz du carter séparés des particules d'huile.According to another characteristic of the invention, the cylinder head cover comprises a settling chamber integrated by molding and communicating on the one hand with the engine casing and on the other hand with the intake system so as to suck the gases from the sump separated from oil particles.

Suivant encore une autre caractéristique, la chambre de décantation comprend un puits de décantation auquel sont reliés au moins deux embouts, intégrés par moulage au couvre-culasse, pour le raccordement de la chambre de décantation au carter et au système d'admission à l'aide de deux conduites de communication.According to yet another characteristic, the decantation chamber comprises a decantation well to which are connected at least two end pieces, integrated by molding in the cylinder head cover, for the connection of the decantation chamber to the casing and to the intake system to the help two communication lines.

Par ailleurs, le couvre-culasse comprend un canal de remplissage en huile du carter intégré par moulage au couvre-culasse.Furthermore, the cylinder head cover comprises a channel for filling the crankcase oil integrated by molding in the cylinder head cover.

Suivant encore une autre caractéristique le filtre à air comprend une chambre intégrée par moulage au couvre-culasse, destinée à la réception d'une cartouche de filtrage, la chambre étant prolongée par une chambre de mélange d'air frais et d'air chaud également intégrée par moulage au couvre-culasse.According to yet another characteristic, the air filter comprises a chamber integrated by molding into the cylinder head cover, intended for the reception of a filter cartridge, the chamber being extended by a chamber for mixing fresh air and hot air also integrated by molding in the cylinder head cover.

Le filtre à air comprend de plus une partie formant capot, fixée amoviblement au couvre-culasse de façon à accéder à la cartouche de filtrage et comportant un canal de liaison entre la chambre de décantation et le circuit d'admission de façon à aspirer les gaz de la chambre de décantation.The air filter further comprises a cover portion, removably attached to the cylinder head cover so as to access the filter cartridge and comprising a connection channel between the decantation chamber and the intake circuit so as to suck up the gases. from the settling chamber.

D'autre part, le couvre-culasse comprend des nervures externes formant sillon intégralement moulées au couvre-culasse et destinées à la fixation des fils électriques de bougies d'allumage du moteur.On the other hand, the cylinder head cover comprises external ribs forming a groove integrally molded with the cylinder head cover and intended for fixing the electrical wires of the spark plugs of the engine.

On précisera aussi que le canal de remplissage d'huile est concentrique au puits de décantation.It should also be noted that the oil filling channel is concentric with the settling well.

De plus, le couvre-culasse conforme à l'invention est fixé à la partie supérieure des chapeaux de palier d'au moins un arbre à came du moteur.In addition, the cylinder head cover according to the invention is fixed to the upper part of the bearing caps of at least one camshaft of the engine.

Par ailleurs, le couvre-culasse est réalisé en une matière plastique.Furthermore, the cylinder head cover is made of a plastic material.

Ainsi, le couvre-culasse conforme à l'invention est compact, esthétique et améliore l'acoustique du moteur par filtrage des bruits de distribution.Thus, the cylinder head cover according to the invention is compact, aesthetic and improves the acoustics of the engine. by filtering out distribution noise.

Mais d'autres avantages et caractéristiques de l'invention apparaîtront mieux dans la description détaillée qui suit et se réfère à la figure annexée unique illustrant, par une vue en perspective et partiellement éclatée, un couvre-culasse suivant l'invention.However, other advantages and characteristics of the invention will appear better in the detailed description which follows and refers to the single appended figure illustrating, in a perspective and partially exploded view, a cylinder head cover according to the invention.

En se reportant à la figure unique, le couvre-culasse moulé selon l'invention comprend un corps 1 servant de couvercle dans sa partie inférieure aux chapeaux de paliers de l'arbre à cames (non représentés). Le corps 1 et les chapeaux sont assemblés l'un sur l'autre à l'aide, par exemple, de vis de fixation V.Referring to the single figure, the molded cylinder head cover according to the invention comprises a body 1 serving as a cover in its lower part to the bearing caps of the camshaft (not shown). The body 1 and the caps are assembled one on the other using, for example, fixing screws V.

Le corps 1 comprend plusieurs chambres qui sont réparties à proximité de la partie inférieure formant couvercle et contiguës à celle-ci.The body 1 comprises several chambers which are distributed close to and contiguous with the lower part forming a cover.

Selon un mode de réalisation préféré de l'invention, le corps 1 comprend dans une partie latérale une chambre 2, s'étendant longitudinalement à l'axe X-X′ de l'arbre à cames et dans laquelle est amené de l'air frais par un embout avant 3, solidaire de la paroi extérieure 2a de délimitation de la chambre 2, connecté à une durite d'amenée d'air frais (non représentée) raccordée à une prise d'air du moteur (non représentée), par exemple, à l'aide d'un collier de serrage. Dans une partie inférieure de la chambre 2 est formé un autre embout 4 destiné à être connecté à une conduite d'amenée (non représentée) d'air chaud. Cette chambre 2 ainsi reliée à la prise d'air et à une partie de réchauffement de l'air, connexe au collecteur d'échappement, permet d'obtenir un mélange d'air frais et d'air réchauffé par ledit collecteur. De plus, la chambre 2 est située sous et est attenante à une autre chambre prismatique 5 qui communique avec celle-ci par un passage de gaz (non représenté) tel que par exemple un orifice dans une cloison commune de séparation des deux chambres 2 et 5.According to a preferred embodiment of the invention, the body 1 comprises in a lateral part a chamber 2, extending longitudinally to the axis XX ′ of the camshaft and into which fresh air is supplied by a front end piece 3, integral with the outer wall 2a delimiting the chamber 2, connected to a fresh air intake hose (not shown) connected to an engine air intake (not shown), for example, using a hose clamp. In a lower part of the chamber 2 is formed another end piece 4 intended to be connected to a supply line (not shown) of hot air. This chamber 2 thus connected to the air intake and to an air heating part, connected to the exhaust manifold, makes it possible to obtain a mixture of fresh air and air heated by said manifold. In addition, bedroom 2 is located under and adjoins another prismatic chamber 5 which communicates with it by a gas passage (not shown) such as for example an orifice in a common partition separating the two chambers 2 and 5.

Une cartouche 6 de filtrage du mélange air frais/air chaud est amoviblement fixée à une face latérale 5a de délimitation de la chambre 5 comprise approximativement dans un plan parallèle au plan vertical passant par l'axe X-X′.A cartridge 6 for filtering the fresh air / hot air mixture is removably attached to a lateral face 5a delimiting the chamber 5 approximately comprised in a plane parallel to the vertical plane passing through the axis X-X ′.

Cette face latérale 5a délimite avec la paroi inférieure 1a du corps 1 formant couvercle de paliers de l'arbre à cames du moteur, un espace de réception d'une pièce amovible formant capot 7, permettant l'accès à la cartouche de filtrage 6. Ce capot 7 est fixé au corps 1 à l'aide de deux languettes élastiques 8 s'encliquetant sur des excroissances ou saillies 9 formées, par exemple par moulage, sur la paroi supérieure 5b de la chambre 5, et de deux vis de fixation 10 se vissant respectivement dans deux bossages 11 solidaires de la paroi 1a.This lateral face 5a delimits, with the lower wall 1a of the body 1 forming the bearing cover of the engine camshaft, a space for receiving a removable part forming the cover 7, allowing access to the filter cartridge 6. This cover 7 is fixed to the body 1 using two elastic tabs 8 which snap onto protuberances or projections 9 formed, for example by molding, on the upper wall 5b of the chamber 5, and two fixing screws 10 screwing respectively into two bosses 11 secured to the wall 1a.

De plus, le capot 7 comporte, solidaire d'une paroi 13 et opposé à la cartouche de filtrage 6, un embout de raccordement 14 relié à une durite, fixée par exemple à l'aide d'un collier, pour le passage du mélange air frais/air chaud filtré vers le système d'admission du moteur (non représenté).In addition, the cover 7 comprises, integral with a wall 13 and opposite to the filter cartridge 6, a connection end piece 14 connected to a hose, fixed for example using a collar, for the passage of the mixture. fresh air / hot air filtered to the engine intake system (not shown).

Une canalisation 15, venue de moulage du capot 7 et symbolisée par un trait en pointillés, est formée dans la paroi 13. Celle-ci débouche dans l'embout 14 et communique par son extrémité opposée avec un orifice 16 du corps 1 débouchant dans une chambre de décantation 18 du corps 1 pour permettre l'aspiration des gaz de carter avec l'air filtré lorsque le moteur fonctionne à pleine charge.A pipe 15, coming from the molding of the cover 7 and symbolized by a dotted line, is formed in the wall 13. This opens into the end piece 14 and communicates by its opposite end with an orifice 16 of the body 1 opening into a decantation chamber 18 of the body 1 to allow the suction of the crankcase gases with the filtered air when the engine is running at full load.

On comprend aisément que les chambres 2 et 5 et l'espace délimité par le capot 7 communiquent entre eux de façon à former un filtre à air F.It is easily understood that the chambers 2 and 5 and the space delimited by the cover 7 communicate with each other so as to form an air filter F.

La chambre de décantation 18 est située latéralement au capot 7 et à la chambre 5 et comprend dans sa partie centrale un puits de décantation 19, sensiblement cylindrique. Le puits 19 s'étend de bas en haut dans la chambre de décantation 18, sert de canalisation de remplissage d'huile (également référencée 19) concentrique au puits 19 et débouche à son extrémité inférieure dans la culasse (non représentée).The settling chamber 18 is located laterally to the cover 7 and to the chamber 5 and comprises in its central part a settling well 19, which is substantially cylindrical. The well 19 extends from bottom to top in the settling chamber 18, serves as an oil filling pipe (also referenced 19) concentric with the well 19 and opens at its lower end into the cylinder head (not shown).

Le puits 19 est obturé à son extrémité supérieure par un bouchon amovible 20. Afin d'éviter l'intrusion accidentelle d'objets tels que par exemple un écrou, le puits 19 est muni d'une grille pare-boulon (non représentée).The well 19 is closed at its upper end by a removable plug 20. In order to avoid accidental intrusion of objects such as, for example, a nut, the well 19 is provided with a bolt shield grid (not shown).

La chambre de décantation 18 est en liaison d'une part avec le carter du moteur par une durite D1 (symbolisée en trait mixte) se raccordant à un embout radial 21 de la chambre de décantation 18 et d'autre part avec le système d'admission par une autre durite D2 (également symbolisée en trait mixte) qui se raccorde à un deuxième embout radial 22 de la chambre 18 similaire au premier embout 21.The decantation chamber 18 is connected on the one hand with the engine casing by a hose D1 (symbolized in phantom) connecting to a radial end piece 21 of the decantation chamber 18 and on the other hand with the system of admission by another hose D2 (also symbolized in phantom) which is connected to a second radial nozzle 22 of the chamber 18 similar to the first nozzle 21.

Ce circuit permet l'aspiration des gaz de carter du moteur, après que les particules d'huile en suspension dans le gaz provenant du carter aient été séparées de ce gaz par décantation sur les parois de la chambre 18.This circuit allows the suction of the engine crankcase gases, after the oil particles suspended in the gas coming from the crankcase have been separated from this gas by decantation on the walls of the chamber 18.

Le filtre à air F, la chambre de décantation 18, et la partie formant couvercle des chapeaux de paliers de l'arbre à cames sont reliés en une seule pièce par moulage du corps 1.The air filter F, the settling chamber 18, and the part forming the cover of the bearing caps of the camshaft are connected in one piece by molding of the body 1.

De plus, des nervures externes 23 sont formées sur une paroi de la partie inférieure du corps 1 formant couvercle des chapeaux de paliers d'arbre à cames. Ces nervures 23 sont intégralement moulées avec le corps 1 forment des peignes destinés à retenir des fils électriques de bougies d'allumage du moteur.In addition, external ribs 23 are formed on a wall of the lower part of the body 1 forming a cover for the camshaft bearing caps. These ribs 23 are integrally molded with the body 1 form combs intended to retain electrical wires of spark plugs of the engine.

Il est avantageux de réaliser tout le corps 1 équipé du filtre F et de la chambre 18 précités de façon à obtenir un ensemble en matière plastique en une seule pièce légère, simple et d'accès aisé.It is advantageous to produce the entire body 1 equipped with the filter F and with the chamber 18 above so as to obtain a plastic assembly in a single piece which is light, simple and easy to access.

Grâce à cette conception ne formant qu'un seul bloc lorsque le capot 7 est fixé sur le corps 1, on obtient un ensemble couvre-culasse-filtre à air débarrassé de nombreuses durites de raccordement qui rendaient plus complexe et coûteux le bloc propulseur.Thanks to this design forming a single block when the cover 7 is fixed to the body 1, there is obtained an air cylinder head cover filter assembly freed from numerous connection hoses which made the propellant block more complex and expensive.

On a ainsi réalisé un couvre-culasse compact, simple et économique, permettant de réduire les temps nécessaires à son montage et à son entretien.A compact, simple and economical cylinder head cover was thus produced, making it possible to reduce the time necessary for its assembly and maintenance.

Bien entendu, la forme, la dispositif et le nombre de chambres ou d'embouts de connexion de ce couvre-culasse peuvent varier, sans toutefois sortir du cadre de l'invention.Of course, the shape, the device and the number of chambers or connection end pieces of this cylinder head cover can vary, without however departing from the scope of the invention.

Claims (9)

Couvre-culasse moulé pour un moteur à combustion interne, et du type comprenant un filtre à air (F) relié au système d'admission du moteur, et une chambre de décantation (18) qui communique d'une part avec le carter du moteur et d'autre part avec le système d'admission de façon à aspirer les gaz du carter séparés des particules d'huile, le filtre à air et la chambre de décantation étant intégrés par moulage au couvre-culasse, caractérisé en ce que ladite chambre de décantation (18) comprend un puits de décantation (19) auquel sont reliés au moins deux embouts (21, 22) intégrés par moulage, et permettant de raccorder la chambre de décantation (18) au carter et au système d'admission, à l'aide de deux conduites de communication (D1, D2).Molded cylinder head cover for an internal combustion engine, and of the type comprising an air filter (F) connected to the engine intake system, and a settling chamber (18) which communicates on the one hand with the engine casing and secondly with the intake system so as to suck the gases from the crankcase separated from the oil particles, the air filter and the settling chamber being integrated by molding into the cylinder head cover, characterized in that said chamber decantation chamber (18) comprises a decantation well (19) to which are connected at least two end pieces (21, 22) integrated by molding, and making it possible to connect the decantation chamber (18) to the casing and to the intake system, to using two communication lines (D1, D2). Couvre-culasse selon la revendication 1, caractérisé en ce qu'il comprend un canal (19) de remplissage en huile du carter, intégré par moulage au couvre-culasse.Cylinder head cover according to claim 1, characterized in that it comprises a channel (19) for filling the crankcase oil, integrated by molding in the cylinder head cover. Couvre-culasse selon l'une des revendications 1 ou 2, caractérisé en ce que le filtre à air (F) précité comprend une chambre (5) intégrée par moulage au couvre-culasse, destinée à la réception d'une cartouche de filtrage (6), ladite chambre (5) étant prolongée par une chambre de mélange (2) d'air frais et d'air chaud, également intégrée par moulage au couvre-culasse.Cylinder head cover according to one of claims 1 or 2, characterized in that the aforementioned air filter (F) comprises a chamber (5) integrated by molding into the cylinder head cover, intended to receive a filter cartridge ( 6), said chamber (5) being extended by a mixing chamber (2) of fresh air and hot air, also integrated by molding in the cylinder head cover. Couvre-culasse selon l'une des revendications 1 à 3, caractérisé en ce que le filtre à air (F) précité comprend de plus une partie formant capot (7) fixée amoviblement au couvre-culasse de façon à accéder à la cartouche de filtrage (6) et comportant un embout de raccordement (14) au système d'admission, dans lequel débouche une canalisation (15) réalisée dans la partie formant capot (7) et en communication avec la chambre de décantation (18) de façon à aspirer les gaz de la chambre de décantation.Cylinder head cover according to one of claims 1 to 3, characterized in that the aforementioned air filter (F) further comprises a cover portion (7) removably attached to the cylinder head cover so as to access the filter cartridge (6) and comprising a connection end piece (14) to the intake system, into which opens a pipe (15) produced in the part forming cover (7) and in communication with the settling chamber (18) so as to suck the gases from the settling chamber. Couvre-culasse selon l'une des revendications 1 à 4, caractérisé en ce qu'il comprend des nervures externes (23) formant sillons, intégralement moulées au couvre-culasse et destinées à la fixation de fils électriques de bougies d'allumage du moteur.Cylinder head cover according to one of claims 1 to 4, characterized in that it comprises external ribs (23) forming grooves, integrally molded with the cylinder head cover and intended for fixing the electrical wires of spark plugs of the engine . Couvre-culasse selon l'une des revendications 1 à 5, caractérisé en ce que le canal de remplissage d'huile (19) est concentrique au puits de décantation (19) précité.Cylinder head cover according to one of Claims 1 to 5, characterized in that the oil filling channel (19) is concentric with the above-mentioned settling well (19). Couvre-culasse selon l'une des revendications 1 à 6, caractérisé en ce qu'il est fixé à la partie supérieure des chapeaux de paliers d'au moins un arbre à cames du moteur.Cylinder head cover according to one of claims 1 to 6, characterized in that it is fixed to the upper part of the bearing caps of at least one camshaft of the engine. Couvre-culasse selon l'une des revendications 1 à 7, caractérisé en ce qu'il est réalisé en une matière plastique.Cylinder head cover according to one of claims 1 to 7, characterized in that it is made of a plastic material. Véhicule automobile à moteur à combustion interne caractérisé en ce que ledit moteur est équipé d'un couvre-culasse tel que défini aux revendications 1 à 8.Motor vehicle with internal combustion engine characterized in that said engine is equipped with a cylinder head cover as defined in claims 1 to 8.
EP90403341A 1989-12-04 1990-11-26 Cylinder head cover with integrated air filter Expired - Lifetime EP0432012B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8915990 1989-12-04
FR8915990A FR2655383B1 (en) 1989-12-04 1989-12-04 CYLINDER COVER WITH INTEGRATED AIR FILTER.

Publications (2)

Publication Number Publication Date
EP0432012A1 true EP0432012A1 (en) 1991-06-12
EP0432012B1 EP0432012B1 (en) 1993-03-17

Family

ID=9388114

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90403341A Expired - Lifetime EP0432012B1 (en) 1989-12-04 1990-11-26 Cylinder head cover with integrated air filter

Country Status (4)

Country Link
EP (1) EP0432012B1 (en)
DE (1) DE69001121T2 (en)
ES (1) ES2040088T3 (en)
FR (1) FR2655383B1 (en)

Cited By (4)

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Publication number Priority date Publication date Assignee Title
EP0881377A3 (en) * 1997-05-31 1999-06-09 Robert Bosch Gmbh Device for fitting an internal combustion engine with supplementary parts
BE1011453A3 (en) * 1997-09-15 1999-09-07 Solvay Air intake device for engine internal.
EP1091099A1 (en) * 1999-10-07 2001-04-11 Siemens Canada Limited Positive crankcase ventilation system
EP1182343A3 (en) * 2000-08-25 2003-04-02 Daihatsu Motor Co., Ltd. Arrangement of cylinder head cover for internal combustion engine

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Publication number Priority date Publication date Assignee Title
US6354283B1 (en) * 2000-08-29 2002-03-12 Fleetguard, Inc. Diesel engine modular crankcase ventilation filter
DE10242809B4 (en) * 2002-09-14 2013-11-07 Volkswagen Ag Internal combustion engine with vacuum reservoir
FR3026789B1 (en) 2014-10-02 2016-11-04 Renault Sa INTERNAL COMBUSTION ENGINE HEAD COVER

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EP0395841A1 (en) * 1989-05-05 1990-11-07 FILTERWERK MANN &amp; HUMMEL GMBH Filling opening for filling lubricating oil into an internal combustion engine

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US4300511A (en) * 1980-05-14 1981-11-17 Chrysler Corporation Multi-functional assembly
US4861359A (en) * 1989-02-10 1989-08-29 Allied-Signal Inc. Dual function air filter
EP0395841A1 (en) * 1989-05-05 1990-11-07 FILTERWERK MANN &amp; HUMMEL GMBH Filling opening for filling lubricating oil into an internal combustion engine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0881377A3 (en) * 1997-05-31 1999-06-09 Robert Bosch Gmbh Device for fitting an internal combustion engine with supplementary parts
BE1011453A3 (en) * 1997-09-15 1999-09-07 Solvay Air intake device for engine internal.
EP1091099A1 (en) * 1999-10-07 2001-04-11 Siemens Canada Limited Positive crankcase ventilation system
US6293268B1 (en) 1999-10-07 2001-09-25 Siemens Automotive, Inc. Positive crankcase ventilation system
US6418918B2 (en) 1999-10-07 2002-07-16 Siemens Canada Limited Positive crankcase ventilation system
EP1182343A3 (en) * 2000-08-25 2003-04-02 Daihatsu Motor Co., Ltd. Arrangement of cylinder head cover for internal combustion engine

Also Published As

Publication number Publication date
DE69001121T2 (en) 1993-10-07
ES2040088T3 (en) 1993-10-01
FR2655383A1 (en) 1991-06-07
EP0432012B1 (en) 1993-03-17
FR2655383B1 (en) 1994-05-13
DE69001121D1 (en) 1993-04-22

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