EP0846223B2 - Internal combustion engine intake manifold - Google Patents

Internal combustion engine intake manifold Download PDF

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Publication number
EP0846223B2
EP0846223B2 EP96928500A EP96928500A EP0846223B2 EP 0846223 B2 EP0846223 B2 EP 0846223B2 EP 96928500 A EP96928500 A EP 96928500A EP 96928500 A EP96928500 A EP 96928500A EP 0846223 B2 EP0846223 B2 EP 0846223B2
Authority
EP
European Patent Office
Prior art keywords
arrangement according
air intake
air
intake arrangement
tappings
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.)
Expired - Lifetime
Application number
EP96928500A
Other languages
German (de)
French (fr)
Other versions
EP0846223A1 (en
EP0846223B1 (en
Inventor
Jean-Pierre Debrut
Olivier Guibert
Marc Prin
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.)
Renault SAS
Original Assignee
Renault SAS
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Filing date
Publication date
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Priority claimed from FR9510083A external-priority patent/FR2738035B1/en
Priority claimed from FR9510249A external-priority patent/FR2738293B1/en
Application filed by Renault SAS filed Critical Renault SAS
Publication of EP0846223A1 publication Critical patent/EP0846223A1/en
Publication of EP0846223B1 publication Critical patent/EP0846223B1/en
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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
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10295—Damping means, e.g. tranquillising chamber to dampen air oscillations
    • 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
    • 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
    • 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
    • F02M35/10052—Plenum chambers special shapes or arrangements of plenum chambers; Constructional details
    • 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
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10373—Sensors for intake systems
    • F02M35/1038—Sensors for intake systems for temperature or pressure
    • 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
    • F02M35/104—Intake manifolds
    • F02M35/1045—Intake manifolds characterised by the charge distribution between the cylinders/combustion chambers or its homogenisation
    • 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
    • F02M35/10347—Moulding, casting or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/08—Thermoplastics

Definitions

  • the present invention relates to a device air intake for internal combustion engines multicylinder intended in particular to equip the motor vehicles or road vehicles, and more particularly to an intake manifold adapted to receive a plurality of taps and an air filter.
  • the air intake device of the engines internal combustion conventionally includes a collector admission also called dispatcher who has for function to port the filter output air, and the entrance of the various intake ducts in the cylinder head of the engine.
  • a collector admission also called dispatcher who has for function to port the filter output air, and the entrance of the various intake ducts in the cylinder head of the engine.
  • the intake manifold presents classically a body coming to be fixed on the cylinder head of the engine; this body generally comprises a distribution chamber large capacity also called plenum and several pipes that leave this distribution chamber to supply combustion air to each of the combustion chambers of the engine.
  • the intake manifold of a combustion engine internal is usually connected to a number more or less important of depression taken serving to operate organs as diverse as the braking system or Master Vac, the EGR valve, the fuel return valve fitted to the injection rail, systems for adding non-combustible substances or secondary combustible substances crankcase gases, fuel vapors from the canister or recirculated flue gases, as well as the sensor for measuring the manifold pressure.
  • Measuring the pressure in the collector admission that is necessary to order injectors is in fact operated classically at means of an absolute pressure sensor connected by a flexible pipe length adapted to a quilting opening in the distribution chamber.
  • the measurement sensor of depression collector is usually positioned in the engine compartment outside the engine; such a provision obliges to provide fastening systems adapted and therefore also complicates the operations of engine mounting.
  • the present invention therefore aims to remedy to these disadvantages through an admission device adapted including an intake manifold which brings together in a simple and economical way almost all tapping necessary for the operation of the engine and thanks to an air filter serving as a support for Pressure sensor.
  • the air intake device according to the invention is defined to the claim 1.
  • the filter air is characterized in that it comprises a suitable support to receive the pressure sensor.
  • the support integrates means of clipping for easy assembly and disassembly pressure sensor.
  • the admission device air shown is intended to equip an engine internal combustion spark ignition not shown in-line four-cylinder type equipping for example a motor vehicle.
  • the admission device includes an air filter 1 extending near a collector referenced 2.
  • This air filter 1 and this collector 2 which are specifically intended to be positioned side by side on the cylinder head cover of the engine, are connected to each other through a butterfly housing and non-figured connecting lines.
  • the air filter 1 comprises a housing substantially cylindrical made of plastic material made in two separate parts 10 and 11 come both molding.
  • a first half-body 10 encloses a resonator cavity intended to reduce the intake noise while that the second half-body 11 forms the housing for a filter cartridge not shown and has orifices input 13 and output 12 for fresh air combustive.
  • the two half-bodies 10 and 11 are joined axially by a system of fixing said quarter turn: the second half-body 11 is immobilized on the cylinder head cover the engine by means of a system of straps elastic bands with hooks, while the first half-body 10 easily removable allows by its withdrawal to freely access the cartridge slot filter.
  • the different bearing surfaces of the second half-body 11 on the cylinder head cover are provided with elastic shock absorbers non-figurative intervening and decoupling vibratory.
  • the half-body 11 also presents molding a support 6 extending projecting on the part upper part of the half-body 11 and intended to receive a pressure sensor 3.
  • This pressure sensor 3 has for function of measuring the absolute pressure prevailing in the distribution chamber of the intake manifold 2; the value of the manifold pressure serving the system motor control not shown to control operation of the motor.
  • the support 6 is more particularly designed to immobilize in position the sensor 3 by clipping.
  • the support 6, adapted to the general rectangular shape of the sensor 3, essentially comprises a bottom wall 18 on which the sensor 3 comes to rest, as well as sidewalls 15 partially surrounding the wall 18 so as to form an open housing on the on the inside of which is positioned the sensor 3.
  • the bottom wall 18 extends overhang in the direction intake manifold 2 being supported on three sides by ribs 16, it has a wide opening 19 opening on the free edge making facing the intake manifold 2 to allow passage of the pressure tap 4 connecting the pressure sensor 3 to the intake manifold 2 and allow the in place of the sensor 3 already connected to the pipe 4 in the housing defines by the support 6.
  • the side walls 15 facing the two transverse ends of the sensor 3 are provided with lugs 17 able to come and press on the upper face of the sensor 3 and thus immobilize the latter on the support 6.
  • the assembly and disassembly of the sensor 3 are operated in a simple way thanks to the elasticity of the side walls of the support 6 resulting from the plastic material used for form the two half-bodies 10 and 11 of the filter housing to air.
  • the flexible thermoformed pipe 4 making office pressure setting typically extends between the sensor 3 and a corresponding tap 5 carried by the intake manifold 2 which leads to the right of the distribution chamber of the latter.
  • Line 4 is, however, of shape and length adapted to minimize the waves of pressure prevailing in the distribution chamber of the collector.
  • the present invention is also applicable for an internal combustion engine with ignition compression, especially in cases where the device air intake comprises a compressor or a flap EGR and where the pressure measurement in the collector intake is useful for the operation of the engine.
  • This collector 2 made of plastic conventionally comprises a molded body having a distribution chamber or plenum 22 of substantially cylindrical shape, intended to extend parallel to the non-figured cylinder head of the engine, and four pipes 23 directed substantially perpendicularly to the distribution chamber 22 and putting in communication the latter with the intake ducts corresponding in the cylinder head for supplying combustion air or combustible mixture each of the combustion chambers of the engine.
  • the 5,8,7 taps used respectively the measurement of the pressure and the connection of the pipes recycling in the combustion air of crankcase gases and fuel vapors from the canister as well that with the different takes of depression, are according to the invention grouped on a single insert reported 24 extending parallel to the longitudinal axis of the distribution chamber 22.
  • This plate 24 of rectangular general shape, obtained from plastic by molding, is fixed, by gluing or by welding (ultra sounds) tightly on the body 20 of the collector intake 2 to the right of two corresponding openings 26,27 opening into the distribution chamber 22 substantially upstream in the direction of flow of air tubings 23 especially for that 26 corresponding to the tapping 8 intended for the addition of substances suitable for combustion air (substances non-combustible in case of crankcase gases or substances fuels in the case of fuel vapors from the fuel tank and trapped by the canister), in order to obtain a homogeneous distribution of these in the different combustion chambers of the motor.
  • substances suitable for combustion air substances non-combustible in case of crankcase gases or substances fuels in the case of fuel vapors from the fuel tank and trapped by the canister
  • connection carried by the plate 24 are aligned according to the median longitudinal axis of the latter and grouped together in two distinct groups arranged at both ends Axial of the plate 4.
  • the connections 8 corresponding to the introduction of non-combustible substances or secondary fuel while in the other end portion 47 separated from the portion 46 by an intermediate portion of predetermined length 45, are arranged the connections 7 corresponding to different engine vacuum sockets as well as the quilting 5 for the measurement of depression.
  • This arrangement of the tails in two groups separate functions is to move sufficiently far taps 8 for the addition of substances to the combustion air taps 7 and 5 used for taking vacuum, in order to prevent any recovery of these substances through the catches of depression.
  • each group of respective taps corresponds a single opening respectively 26, 27 opening into the distribution chamber 22.
  • the associated opening 26 is shown at the taps 8 (the opening 27 associated with the taps 7 and 5 which extends in the extension of the opening 26 is perfectly similar to the latter with axial dimensions).
  • This opening 26 is present in the form of an oblong hole 123 arranged through the wall of the manifold body defining the distribution chamber 22.
  • the oblong hole 123 is surrounded by a wall 116 coming from molding with the collector body and projecting above it.
  • the edge upper wall 116 forming a joint plane present a peripheral groove 29 adapted to receive a complementary shouldered boss 64 extending under the part 46 of the wafer around the various taps 8.
  • the stitching 8 integrates an individual chamber 61 of substantially cylindrical having a flared entrance opening extending in the extension of the orifice 123, this chamber 61 opens with a connection end adapted 60 olive type (or fir type) extending perpendicular to the axis of the chamber 61.
  • the connecting end 60 on which is connected the conduit of corresponding non-figured link is a part of the quilting 8.
  • connection piece 9 is not directly integrated in the corresponding quilting 406 but clipped on the latter.
  • the mouthpiece 9 includes a connection tip itself 80 forming a body with a cap 84 which is fixed removably on the stitching 406 constituted by a 406 adapted tube coming from molding with the wafer.
  • the invention is not limited, in particular with regard to the plate 24, only rectangular shape and implantation on the distribution chamber 22 that have been illustrated in the figures, the invention is not limited to only plastic intake manifolds but also applies to foundry collectors.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

An air intake device for a multicylinder internal combustion engine has an air filter with a casing (10, 11) defining a housing for a filter cartridge and an intake manifold (2) having a body (20) with a distribution chamber (22) provided with a plurality of branch connections (5, 7; 8, 9) co-operating in particular with a pressure sensor (3) to provide the air pressure value in the manifold (2) and tubings (23) for connecting said distribution chamber (22) and the corresponding intake ducts in the cylinder head of the engine, the device being characterised in that said branch connections are carried by a single insert (24) that is mounted on said body (20) at right angles with at least one corresponding opening (26, 27) to said distribution chamber (22).

Description

La présente invention se rapporte à un dispositif d'admission d'air pour les moteurs à combustion interne multicylindres destinés notamment à équiper les véhicules automobiles ou routiers, et plus particulièrement à un collecteur d'admission adapté pour recevoir une pluralité de piquages ainsi qu'à un filtre à air.The present invention relates to a device air intake for internal combustion engines multicylinder intended in particular to equip the motor vehicles or road vehicles, and more particularly to an intake manifold adapted to receive a plurality of taps and an air filter.

Le dispositif d'admission d'air des moteurs à combustion interne comprend classiquement un collecteur d'admission encore appelé répartiteur qui a pour fonction de mettre en communication la sortie du filtre à air, et l'entrée des différents conduits d'admission ménagés dans la culasse du moteur.The air intake device of the engines internal combustion conventionally includes a collector admission also called dispatcher who has for function to port the filter output air, and the entrance of the various intake ducts in the cylinder head of the engine.

Le collecteur d'admission présente classiquement un corps venant se fixer sur la culasse du moteur ; ce corps comporte généralement une chambre de distribution de grande capacité encore appelée plenum et plusieurs tubulures qui partent de cette chambre de distribution pour alimenter en air comburant chacune des chambres de combustion du moteur.The intake manifold presents classically a body coming to be fixed on the cylinder head of the engine; this body generally comprises a distribution chamber large capacity also called plenum and several pipes that leave this distribution chamber to supply combustion air to each of the combustion chambers of the engine.

Le collecteur d'admission d'un moteur à combustion interne est généralement connecté à un nombre plus ou moins important de prises de dépression servant à faire fonctionner des organes aussi divers que le système de freinage ou Master Vac, la vanne EGR, le clapet de retour du carburant équipant la rampe d'injection, les systèmes d'ajout de substances non combustibles ou de substances combustibles secondaires telles que les gaz de carter, les vapeurs de carburant en provenance du canister ou encore les gaz brûlés recirculés, ainsi que le capteur de mesure de la pression collecteur.The intake manifold of a combustion engine internal is usually connected to a number more or less important of depression taken serving to operate organs as diverse as the braking system or Master Vac, the EGR valve, the fuel return valve fitted to the injection rail, systems for adding non-combustible substances or secondary combustible substances crankcase gases, fuel vapors from the canister or recirculated flue gases, as well as the sensor for measuring the manifold pressure.

La mesure de la pression régnant dans le collecteur d'admission qui est nécessaire à la commande des injecteurs, est en effet opérée classiquement au moyen d'un capteur de pression absolue relié par une conduite souple de longueur adaptée à un piquage débouchant dans la chambre de distribution.Measuring the pressure in the collector admission that is necessary to order injectors, is in fact operated classically at means of an absolute pressure sensor connected by a flexible pipe length adapted to a quilting opening in the distribution chamber.

Les piquages nécessaires à toutes ces connexions sont toutefois selon l'art antérieur connu, positionnés sur le collecteur d'admission de façon quelque peu anarchique, ce qui complique la réalisation du collecteur et les opérations de montage de ce dernier sur le moteur.The connections required for all these connections however, according to the prior art known, positioned on the intake manifold in some way little anarchic, which complicates the realization of the collector and the mounting operations of the latter on engine.

Par ailleurs, le capteur de mesure de la dépression collecteur est généralement positionné dans le compartiment moteur à l'extérieur du moteur ; une telle disposition oblige à prévoir des systèmes de fixation adaptés et complique donc également les opérations de montage du moteur.Moreover, the measurement sensor of depression collector is usually positioned in the engine compartment outside the engine; such a provision obliges to provide fastening systems adapted and therefore also complicates the operations of engine mounting.

La présente invention a donc pour but de remédier à ces inconvénients grâce à un dispositif d'admission adapté comprenant un collecteur d'admission qui regroupe de façon simple et économique la quasi-totalité des piquages nécessaires au fonctionnement du moteur et grâce à un filtre à air servant de support au capteur de pression.The present invention therefore aims to remedy to these disadvantages through an admission device adapted including an intake manifold which brings together in a simple and economical way almost all tapping necessary for the operation of the engine and thanks to an air filter serving as a support for Pressure sensor.

Le dispositif d'admission d'air selon l'invention est défini à la revendication 1.The air intake device according to the invention is defined to the claim 1.

Selon un autre aspect de l'invention, le filtre à air est caractérisé en ce qu'il comporte un support adapté pour recevoir le capteur de pression.According to another aspect of the invention, the filter air is characterized in that it comprises a suitable support to receive the pressure sensor.

Selon une autre caractéristique du filtre à air objet de l'invention, le support intègre des moyens de clipsage permettant un montage et un démontage aisé du capteur de pression.According to another characteristic of the air filter object of the invention, the support integrates means of clipping for easy assembly and disassembly pressure sensor.

On comprendra mieux les buts, aspects et avantages de la présente invention, d'après la description donnée ci-après de différents modes de réalisation de l'invention, présentés à titre d'exemples non limitatifs, en se référant aux dessins annexés, dans lesquels :

  • la figure 1 est une vue partielle en perspective du dispositif d'admission d'air pour moteur à combustion interne selon l'invention ;
  • la figure 2 est une vue partielle en perspective du collecteur d'admission pour moteur à combustion interne selon l'invention ;
  • la figure 3 est une vue de détail de la plaquette porte-piquages représentée à la figure 2 ;
  • la figure 4 est une vue en coupe partielle en coupe transversale du collecteur d'admission au droit de l'un des piquages ;
  • la figure 5 est une vue similaire à celle de la figure 4, précisant une variante de réalisation des piquages.
    • The aims, aspects and advantages of the present invention will be better understood from the description given below of various embodiments of the invention, presented by way of non-limiting examples, with reference to the accompanying drawings, in which: which :
  • Figure 1 is a partial perspective view of the air intake device for an internal combustion engine according to the invention;
  • Figure 2 is a partial perspective view of the intake manifold for an internal combustion engine according to the invention;
  • Figure 3 is a detail view of the stitch holder plate shown in Figure 2;
  • Figure 4 is a partial sectional view in cross section of the intake manifold to the right of one of the connections;
  • Figure 5 is a view similar to that of Figure 4, providing an alternative embodiment of the connections.

    • Pour faciliter la lecture des dessins, les mêmes pièces portent les mêmes références d'une figure à l'autre. Par ailleurs, seuls les éléments nécessaires à la compréhension de l'invention ont été représentés.To facilitate the reading of the drawings, the same pieces bear the same references of a figure to the other. Moreover, only the elements necessary for understanding of the invention have been shown.

    En se reportant à la figure 1, le dispositif d'admission d'air représenté est destiné à équiper un moteur à combustion interne à allumage commandé non figuré de type à quatre cylindres en ligne équipant par exemple un véhicule automobile. Le dispositif d'admission comprend un filtre à air 1 s'étendant à proximité d'un collecteur d'admission référencé 2. Ce filtre à air 1 et ce collecteur 2 qui sont plus particulièrement destinés à être positionnés côte à côte sur le couvre-culasse du moteur, sont connectés l'un à l'autre à travers un boítier papillon et des conduites de liaison non figurés.Referring to Figure 1, the admission device air shown is intended to equip an engine internal combustion spark ignition not shown in-line four-cylinder type equipping for example a motor vehicle. The admission device includes an air filter 1 extending near a collector referenced 2. This air filter 1 and this collector 2 which are specifically intended to be positioned side by side on the cylinder head cover of the engine, are connected to each other through a butterfly housing and non-figured connecting lines.

    Le filtre à air 1 comporte un boítier sensiblement cylindrique en matière plastique réalisé en deux parties distinctes 10 et 11 venues l'une et l'autre de moulage. Un premier demi-corps 10 renferme une cavité résonatrice destinée à réduire le bruit d'admission tandis que le second demi-corps 11 forme le logement pour une cartouche filtrante non figurée et présente des orifices d'entrée 13 et de sortie 12 pour l'air frais comburant.The air filter 1 comprises a housing substantially cylindrical made of plastic material made in two separate parts 10 and 11 come both molding. A first half-body 10 encloses a resonator cavity intended to reduce the intake noise while that the second half-body 11 forms the housing for a filter cartridge not shown and has orifices input 13 and output 12 for fresh air combustive.

    Les deux demi-corps 10 et 11 sont réunis axialement par un système de fixation dit à quart de tour : le second demi-corps 11 est immobilisé sur le couvre-culasse du moteur au moyen d'un système de sangles élastiques munies de crochets, tandis que le premier demi-corps 10 facilement démontable permet par son retrait d'accéder librement au logement de la cartouche filtrante.The two half-bodies 10 and 11 are joined axially by a system of fixing said quarter turn: the second half-body 11 is immobilized on the cylinder head cover the engine by means of a system of straps elastic bands with hooks, while the first half-body 10 easily removable allows by its withdrawal to freely access the cartridge slot filter.

    Pour réduire les vibrations du filtre 1, les différentes surfaces d'appui du second demi-corps 11 sur le couvre-culasse sont munies de plots amortisseurs élastiques non figurés venant s'interposer et opérer un découplage vibratoire.To reduce the vibrations of the filter 1, the different bearing surfaces of the second half-body 11 on the cylinder head cover are provided with elastic shock absorbers non-figurative intervening and decoupling vibratory.

    Le demi-corps 11 présente également venant de moulage un support 6 s'étendant en saillie sur la partie supérieure du demi-corps 11 et destiné à recevoir un capteur de pression 3. Ce capteur de pression 3 a pour fonction de mesurer la pression absolue régnant dans la chambre de distribution du collecteur d'admission 2 ; la valeur de la pression collecteur servant au système de contrôle moteur non figuré pour commander le fonctionnement du moteur. Le support 6 est plus particulièrement étudié pour immobiliser en position le capteur 3 par clipsage.The half-body 11 also presents molding a support 6 extending projecting on the part upper part of the half-body 11 and intended to receive a pressure sensor 3. This pressure sensor 3 has for function of measuring the absolute pressure prevailing in the distribution chamber of the intake manifold 2; the value of the manifold pressure serving the system motor control not shown to control operation of the motor. The support 6 is more particularly designed to immobilize in position the sensor 3 by clipping.

    Le support 6, adapté à la forme générale rectangulaire du capteur 3, comprend essentiellement une paroi de fond 18 sur laquelle vient reposer le capteur 3, ainsi que des parois latérales 15 entourant partiellement la paroi 18 de façon à former un logement ouvert sur le dessus à l'intérieur duquel vient se positionner le capteur 3. La paroi de fond 18 s'étend en surplomb en direction du collecteur d'admission 2 en étant supportée sur trois côtés par des nervures 16, elle comporte une large ouverture 19 débouchant sur le bord libre faisant face au collecteur d'admission 2 pour permettre le passage de la prise de pression 4 reliant le capteur de pression 3 au collecteur d'admission 2 et permettre la mise en place du capteur 3 déjà connecté à la conduite 4 dans le logement définit par le support 6.The support 6, adapted to the general rectangular shape of the sensor 3, essentially comprises a bottom wall 18 on which the sensor 3 comes to rest, as well as sidewalls 15 partially surrounding the wall 18 so as to form an open housing on the on the inside of which is positioned the sensor 3. The bottom wall 18 extends overhang in the direction intake manifold 2 being supported on three sides by ribs 16, it has a wide opening 19 opening on the free edge making facing the intake manifold 2 to allow passage of the pressure tap 4 connecting the pressure sensor 3 to the intake manifold 2 and allow the in place of the sensor 3 already connected to the pipe 4 in the housing defines by the support 6.

    Les parois latérales 15 faisant face aux deux extrémités transversales du capteur 3 sont munies d'ergots 17 aptes à venir appuyer sur la face supérieure du capteur 3 et donc immobiliser ce dernier sur le support 6. Le montage et le démontage du capteur 3 sont opérés de façon simple grâce à l'élasticité des parois latérales du support 6 résultant du matériau plastique utilisé pour former les deux demi-corps 10 et 11 du boítier du filtre à air.The side walls 15 facing the two transverse ends of the sensor 3 are provided with lugs 17 able to come and press on the upper face of the sensor 3 and thus immobilize the latter on the support 6. The assembly and disassembly of the sensor 3 are operated in a simple way thanks to the elasticity of the side walls of the support 6 resulting from the plastic material used for form the two half-bodies 10 and 11 of the filter housing to air.

    La conduite souple thermoformée 4 faisant office de prise de pression s'étend classiquement entre le capteur 3 et un piquage 5 correspondant porté par le collecteur d'admission 2 qui débouche au droit de la chambre de distribution de ce dernier.The flexible thermoformed pipe 4 making office pressure setting typically extends between the sensor 3 and a corresponding tap 5 carried by the intake manifold 2 which leads to the right of the distribution chamber of the latter.

    La conduite 4 est toutefois de forme et de longueur adaptée pour réduire au maximum les ondes de pression régnant dans la chambre de distribution du collecteur. La présence d'un grand nombre de coudes 14, cinq dans l'exemple de réalisation illustré, permet d'obtenir le résultat recherché pour une longueur conduite réduite par rapport à l'art antérieur.Line 4 is, however, of shape and length adapted to minimize the waves of pressure prevailing in the distribution chamber of the collector. The presence of a large number of elbows 14, five in the exemplary embodiment illustrated, makes it possible to obtain the desired result for a driving length reduced compared to the prior art.

    La présente invention est également applicable pour un moteur à combustion interne à allumage par compression, notamment dans les cas où le dispositif d'admission d'air comporte un compresseur ou un volet EGR et où la mesure de la pression dans le collecteur d'admission est utile au fonctionnement du moteur.The present invention is also applicable for an internal combustion engine with ignition compression, especially in cases where the device air intake comprises a compressor or a flap EGR and where the pressure measurement in the collector intake is useful for the operation of the engine.

    En se reportant à la figure 2, on a détaillé le collecteur d'admission référencé 2.Referring to Figure 2, we have detailed the intake manifold referenced 2.

    Ce collecteur 2 réalisé en matière plastique comporte classiquement un corps venu de moulage présentant une chambre de distribution ou plenum 22 de forme sensiblement cylindrique, destinée à s'étendre parallèlement à la culasse non figurée du moteur, et quatre tubulures 23 dirigées sensiblement perpendiculairement à la chambre de distribution 22 et mettant en communication cette dernière avec les conduits d'admission correspondants ménagés dans la culasse pour alimenter en air comburant ou en mélange combustible chacune des chambres de combustion du moteur.This collector 2 made of plastic conventionally comprises a molded body having a distribution chamber or plenum 22 of substantially cylindrical shape, intended to extend parallel to the non-figured cylinder head of the engine, and four pipes 23 directed substantially perpendicularly to the distribution chamber 22 and putting in communication the latter with the intake ducts corresponding in the cylinder head for supplying combustion air or combustible mixture each of the combustion chambers of the engine.

    Les piquages 5,8,7 qui servent respectivement à la mesure de la pression et à la connexion des conduites de recyclage dans l'air comburant des gaz de carter et des vapeurs de carburant issus du canister ainsi qu'aux différentes prises de dépression, sont selon l'invention regroupés sur une unique plaquette rapportée 24 s'étendant parallèlement à l'axe longitudinal de la chambre de distribution 22.The 5,8,7 taps used respectively the measurement of the pressure and the connection of the pipes recycling in the combustion air of crankcase gases and fuel vapors from the canister as well that with the different takes of depression, are according to the invention grouped on a single insert reported 24 extending parallel to the longitudinal axis of the distribution chamber 22.

    Cette plaquette 24 de forme générale rectangulaire, obtenue en matière plastique par moulage, vient se fixer, par collage ou encore par soudure (à ultra sons) de façon étanche sur le corps 20 du collecteur d'admission 2 au droit de deux ouvertures correspondantes 26,27 débouchant dans la chambre de distribution 22 sensiblement en amont dans le sens de l'écoulement de l'air des tubulures 23 en particulier pour celle 26 correspondante aux piquages 8 destinés à l'ajout de substances appropriées à l'air comburant (substances non combustibles dans le cas des gaz de carter ou substances combustibles dans le cas des vapeurs de carburant issues du réservoir à carburant et piégées par le canister) et ce, de façon à obtenir une répartition homogéne de celles-ci dans les différentes chambres de combustion du moteur.This plate 24 of rectangular general shape, obtained from plastic by molding, is fixed, by gluing or by welding (ultra sounds) tightly on the body 20 of the collector intake 2 to the right of two corresponding openings 26,27 opening into the distribution chamber 22 substantially upstream in the direction of flow of air tubings 23 especially for that 26 corresponding to the tapping 8 intended for the addition of substances suitable for combustion air (substances non-combustible in case of crankcase gases or substances fuels in the case of fuel vapors from the fuel tank and trapped by the canister), in order to obtain a homogeneous distribution of these in the different combustion chambers of the motor.

    Conformément aux figures 2 et 3, on voit que les piquages portés par la plaquette 24 sont alignés selon l'axe longitudinal médian de cette dernière et regroupés en deux groupes distincts disposés aux deux extrémités axiales de la plaquette 4. Dans la partie d'extrémité 46 de la plaquette 4 sont disposés les piquages 8 correspondants à l'introduction de substances non combustibles ou de combustible secondaire tandis que dans l'autre partie d'extrémité 47 séparée de la partie 46 par une partie intermédiaire de longueur prédéterminée 45, sont disposés les piquages 7 correspondants aux différentes prises de dépression du moteur ainsi que le piquage 5 servant à la mesure de la dépression.According to Figures 2 and 3, we see that the connections carried by the plate 24 are aligned according to the median longitudinal axis of the latter and grouped together in two distinct groups arranged at both ends Axial of the plate 4. In the end part 46 of the plate 4 are arranged the connections 8 corresponding to the introduction of non-combustible substances or secondary fuel while in the other end portion 47 separated from the portion 46 by an intermediate portion of predetermined length 45, are arranged the connections 7 corresponding to different engine vacuum sockets as well as the quilting 5 for the measurement of depression.

    Cette disposition des piquages en deux groupes séparés a pour fonction d'éloigner suffisamment les piquages 8 servant à l'ajout de substances à l'air comburant des piquages 7 et 5 servant aux prises de dépression, de façon à prévenir toute remontée de ces substances à travers les prises de dépression.This arrangement of the tails in two groups separate functions is to move sufficiently far taps 8 for the addition of substances to the combustion air taps 7 and 5 used for taking vacuum, in order to prevent any recovery of these substances through the catches of depression.

    A chaque groupe de piquages respectifs, correspond une unique ouverture respectivement 26, 27 débouchant dans la chambre de distribution 22. Conformément à la figure 4, on a représenté l'ouverture 26 associée aux piquages 8 (l'ouverture 27 associée aux piquages 7 et 5 qui s'étend dans le prolongement de l'ouverture 26 est parfaitement similaire à cette dernière aux dimensions axiales près). Cette ouverture 26 se présente sous la forme d'un orifice oblong 123 ménagé à travers la paroi du corps du collecteur d'admission définissant la chambre de distribution 22.At each group of respective taps, corresponds a single opening respectively 26, 27 opening into the distribution chamber 22. In accordance in FIG. 4, the associated opening 26 is shown at the taps 8 (the opening 27 associated with the taps 7 and 5 which extends in the extension of the opening 26 is perfectly similar to the latter with axial dimensions). This opening 26 is present in the form of an oblong hole 123 arranged through the wall of the manifold body defining the distribution chamber 22.

    L'orifice oblong 123 est entouré par une paroi 116 venant de moulage avec le corps du collecteur et s'étendant en saillie au-dessus de ce dernier. Le bord supérieur de cette paroi 116 formant plan de joint, présente une rainure périphérique 29 apte à recevoir un bossage épaulé 64 complémentaire s'étendant sous la partie 46 de la plaquette autour des différents piquages 8. Un tel assemblage permet tout à la fois un positionnement simple des deux pièces l'une par rapport à l'autre et une fixation étanche des deux pièces, notamment parsoudure à ultra-sons sans formation de bavure disgracieuse.The oblong hole 123 is surrounded by a wall 116 coming from molding with the collector body and projecting above it. The edge upper wall 116 forming a joint plane, present a peripheral groove 29 adapted to receive a complementary shouldered boss 64 extending under the part 46 of the wafer around the various taps 8. Such an assembly allows a positioning at the same time simple of the two parts one with respect to the other and a tight fitting of the two pieces, in particular ultrasonic binder without flash formation unsightly.

    Conformément à la figure 4, le piquage 8 intègre une chambre individuelle 61 de forme sensiblement cylindrique présentant une ouverture d'entrée évasée s'étendant dans le prolongement de l'orifice 123, cette chambre 61 débouche par un embout de raccordement adapté 60 du type à olive (ou encore de type sapin) s'étendant perpendiculairement à l'axe de la chambre 61. Selon cette exemple de réalisation l'embout de raccordement 60 sur lequel vient se brancher le conduit de liaison correspondant non figuré fait corps avec le piquage 8.According to Figure 4, the stitching 8 integrates an individual chamber 61 of substantially cylindrical having a flared entrance opening extending in the extension of the orifice 123, this chamber 61 opens with a connection end adapted 60 olive type (or fir type) extending perpendicular to the axis of the chamber 61. According to this exemplary embodiment, the connecting end 60 on which is connected the conduit of corresponding non-figured link is a part of the quilting 8.

    Selon la variante de réalisation représentée à la figure 5, l'embout de raccordement 9 n'est pas directement intégré au piquage correspondant 406 mais clipsé sur ce dernier. Selon ce mode de réalisation l'embout 9 comprend un embout de raccordement proprement dit 80 formant corps avec un capuchon 84 qui vient se fixer de façon amovible sur le piquage 406 constitué par un tube 406 adapté venant de moulage avec la plaquette.According to the embodiment variant represented in FIG. 5, connection piece 9 is not directly integrated in the corresponding quilting 406 but clipped on the latter. According to this embodiment the mouthpiece 9 includes a connection tip itself 80 forming a body with a cap 84 which is fixed removably on the stitching 406 constituted by a 406 adapted tube coming from molding with the wafer.

    Par ailleurs, l'invention n'est pas limitée, notamment pour ce qui est de la plaquette 24 porte-piquages, à la seule forme rectangulaire et à implantation sur la chambre de distribution 22 qui ont été illustrées sur les figures, de même l'invention n'est pas limitée aux seuls collecteurs d'admission en matière plastique mais s'applique également aux collecteurs venus de fonderie.Moreover, the invention is not limited, in particular with regard to the plate 24, only rectangular shape and implantation on the distribution chamber 22 that have been illustrated in the figures, the invention is not limited to only plastic intake manifolds but also applies to foundry collectors.

    Bien entendu, l'invention n'est nullement limitée au mode de réalisation décrit et illustré qui n'a été donné qu'à titre d'exemple.Of course, the invention is in no way limited to the embodiment described and illustrated which has not been given as an example.

    Claims (17)

    1. An air intake arrangement for a multi-cylinder internal combustion engine including an air filter (1) comprising a casing (10, 11) defining a space for accommodating a filter cartridge and an intake manifold (2) comprising a body (20) having a distribution chamber (22) provided with a plurality of tappings (5, 7, 8, 9) of which one (5) co-operates with a pressure sensor (3) for furnishing the value of the pressure of the air in the manifold (2) and tubes (23) intended to communicate said distribution chamber (22) and the corresponding intake ducts provided in the cylinder head of the engine, characterised in that said tappings are carried by a single added part (24) which is fixed on to said body (20) in line with at least one corresponding opening (26, 27) which opens into said distribution chamber (22), that the tappings (5, 7, 8, 9) are arranged in groups on the single part (24) according to their function and that corresponding to each group of tappings is a suitable opening (26, 27) which is provided through the body (20) to open into said distribution chamber (22).
    2. An air intake arrangement according to claim 1 characterised in that said tappings (5, 7, 8, 9) are respectively intended for measurement of the pressure, for the connection of tubes intended to add to the combustion air combustible or non-combustible substances such as fuel vapours or crankcase gases and/or for the connection of depression pick-ups.
    3. An air intake arrangement according to either one of claims 1 and 2 characterised in that said tappings (5, 7, 8, 9) are in one piece with said part (24).
    4. An air intake arrangement according to any one of claims 1 to 3 characterised in that said part is formed by a plate portion (24) of general rectangular shape and that the tappings (5, 7, 8, 9) are aligned along the longitudinal central axis of said plate portion (24).
    5. An air intake arrangement according to any one of claims 1 to 4 characterised in that each of said openings (26, 27) comprises an oblong orifice (123) surrounded by a wall (116) extending in projecting relationship on the outside of said body (20) and that the free edge forming the joint plane of said wall (116) has a groove (29) serving to accommodate a corresponding boss portion (64) carried by said part (24).
    6. An air intake arrangement according to any one of claims 1 to 5 characterised in that said tappings (5, 7, 8) integrate suitable connecting end portions (60).
    7. An air intake arrangement according to any one of claims 1 to 5 characterised in that all or part of said tappings (406) carry suitable connecting end portions (9), said connecting end portions (9) being fitted by clipping on to said tappings (406).
    8. An air intake arrangement according to any one of claims 1 to 7 characterised in that said body (20) and said part (24) are made of moulded plastics material.
    9. An air intake arrangement according to claim 8 characterised in that said part (24) is fixed on said body (20) by ultrasonic welding.
    10. An air intake arrangement according to any one of claims 1 to 9 characterised in that said casing (10, 11) of the air filter comprises a support (6) adapted to receive said pressure sensor (3).
    11. An air intake arrangement according to claim 10 characterised in that said support (6) integrates clipping means (17) for easy fitting and removal of the pressure sensor (3).
    12. An air intake arrangement according to either one of claims 10 and 11 characterised in that said support (16) is in one piece with said casing (10, 11) of the air filter (1).
    13. An air intake arrangement according to any one of claims 10 to 12 characterised in that the casing (10, 11) of the air filter (1) rests on the engine by way of resilient shock-absorbing means.
    14. An air intake arrangement according to any one of claims 10 to 13 characterised in that said casing of the air filter (1) is formed by two cylindrical half-body portions (10, 11) which are joined axially by a suitable closure system, the first half-body portion (10) defining a resonant cavity and the second half-body portion (11) defining the space for accommodating the filter cartridge and integrating the air inlet (13) and outlet (12) orifices, said second half-body portion (11) intended to be fixed to the engine having said support (6) adapted to receive said pressure sensor (3).
    15. An air intake arrangement according to any one of claims 10 to 14 characterised in that the support (6) comprises a bottom wall (18) and side walls (15) arranged in such a way as to form an upwardly open housing for accommodating said sensor (3), said bottom wall (18) extending in overhung relationship in the direction of the intake manifold (2) by being carried by suitable ribs (16) and comprising a wide opening (19) opening at the free edge facing said intake manifold (2) to permit the passage therethrough of the pressure pick-up (4) connecting said pressure sensor (3) to said intake manifold (2).
    16. An air intake arrangement according to claim 15 characterised in that said side walls (15) which are intended to face the two transverse ends of the sensor (3) are provided with lugs (17) capable of coming to bear against the upper face of the sensor (3) and therefore immobilising the sensor on the support (6).
    17. An air intake arrangement according to any one of claims 10 to 16 characterised in that the pressure pick-up extending between said sensor (3) and the corresponding tapping (5) carried by said intake manifold (2) is formed by a flexible thermally shaped conduit (4) having a number of bends (14) that is at least equal to four.
    EP96928500A 1995-08-25 1996-08-09 Internal combustion engine intake manifold Expired - Lifetime EP0846223B2 (en)

    Applications Claiming Priority (5)

    Application Number Priority Date Filing Date Title
    FR9510083A FR2738035B1 (en) 1995-08-25 1995-08-25 INTAKE MANIFOLD FOR INTERNAL COMBUSTION ENGINE
    FR9510083 1995-08-25
    FR9510249A FR2738293B1 (en) 1995-08-31 1995-08-31 AIR INTAKE DEVICE FOR INTERNAL COMBUSTION ENGINE
    FR9510249 1995-08-31
    PCT/FR1996/001271 WO1997008450A1 (en) 1995-08-25 1996-08-09 Internal combustion engine intake manifold

    Publications (3)

    Publication Number Publication Date
    EP0846223A1 EP0846223A1 (en) 1998-06-10
    EP0846223B1 EP0846223B1 (en) 1999-04-28
    EP0846223B2 true EP0846223B2 (en) 2005-06-15

    Family

    ID=26232174

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP96928500A Expired - Lifetime EP0846223B2 (en) 1995-08-25 1996-08-09 Internal combustion engine intake manifold

    Country Status (3)

    Country Link
    EP (1) EP0846223B2 (en)
    DE (1) DE69602271T3 (en)
    WO (1) WO1997008450A1 (en)

    Families Citing this family (7)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US6152115A (en) * 1997-07-08 2000-11-28 Siemens Canada Limited Integrated engine intake manifold having a fuel vapor purge valve and an exhaust gas recirculation valve
    CN101737209B (en) * 2008-11-14 2012-09-19 光阳工业股份有限公司 Oil gas recovering mechanism of air cleaner
    WO2012028639A1 (en) * 2010-09-02 2012-03-08 Mann+Hummel Gmbh Air intake manifold for internal combustion engine
    JP6047336B2 (en) * 2012-08-10 2016-12-21 本田技研工業株式会社 Intake device for internal combustion engine
    HUP1500103A2 (en) * 2015-03-12 2016-09-28 Laszlo Pillmann Method for promoting autocleaning of diesel and gasoline engines with turbochargers
    FR3044048B1 (en) * 2015-11-20 2020-01-17 Renault S.A.S. IMPROVED AIR DISTRIBUTOR OF A VEHICLE
    DE102020109080A1 (en) 2020-04-01 2021-10-07 Mann+Hummel Gmbh Filter housings, in particular air filter housings

    Family Cites Families (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE3331095A1 (en) * 1982-08-31 1984-03-01 Honda Giken Kogyo K.K., Tokyo INTAKE MANIFOLD FOR A MULTI-CYLINDER ENGINE
    SE502372C2 (en) * 1991-07-08 1995-10-09 Volvo Ab Intake systems for internal combustion engines
    US5603295A (en) * 1992-08-22 1997-02-18 Ing. H.C.F. Porsche Ag Internal-combustion engine comprising an intake system
    FR2697293B1 (en) * 1992-10-26 1994-11-10 Solex Feeding device with integrated tubing.
    DE4402048A1 (en) * 1994-01-25 1995-07-27 Mann & Hummel Filter Integrated suction system

    Also Published As

    Publication number Publication date
    DE69602271T2 (en) 1999-11-11
    EP0846223A1 (en) 1998-06-10
    DE69602271T3 (en) 2006-03-02
    WO1997008450A1 (en) 1997-03-06
    DE69602271D1 (en) 1999-06-02
    EP0846223B1 (en) 1999-04-28

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