EP1888908A2 - Air intake splitter for an internal combustion engine - Google Patents

Air intake splitter for an internal combustion engine

Info

Publication number
EP1888908A2
EP1888908A2 EP06794472A EP06794472A EP1888908A2 EP 1888908 A2 EP1888908 A2 EP 1888908A2 EP 06794472 A EP06794472 A EP 06794472A EP 06794472 A EP06794472 A EP 06794472A EP 1888908 A2 EP1888908 A2 EP 1888908A2
Authority
EP
European Patent Office
Prior art keywords
ducts
distributor
duct
flanges
fixing
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.)
Withdrawn
Application number
EP06794472A
Other languages
German (de)
French (fr)
Inventor
Didier Girard
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.)
PSA Automobiles SA
Original Assignee
Peugeot Citroen Automobiles SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Publication of EP1888908A2 publication Critical patent/EP1888908A2/en
Withdrawn legal-status Critical Current

Links

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
    • F02M35/104—Intake manifolds
    • F02M35/108—Intake manifolds with primary and secondary intake passages
    • 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
    • F02M35/10006—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
    • F02M35/10072—Intake runners
    • 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
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F02M35/10131—Ducts situated in more than one plane; Ducts of one plane crossing ducts of another plane
    • 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
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F02M35/10144—Connections of intake ducts to each other or to another device
    • 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
    • F02M35/10301—Flexible, resilient, pivotally or movable parts; Membranes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/1034—Manufacturing and assembling intake systems
    • F02M35/10354—Joining multiple sections together
    • 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
    • F02M35/112—Intake manifolds for engines with cylinders all in one line
    • 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
    • F02M35/116—Intake manifolds for engines with cylinders in V-arrangement or arranged oppositely relative to the main shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/48—Tumble motion in gas movement in cylinder
    • 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
    • F02M35/10078—Connections of intake systems to the engine
    • 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
    • F02M35/10314—Materials for intake systems
    • F02M35/10327—Metals; Alloys
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the present invention relates to an air intake manifold for an internal combustion engine with one or two rows of cylinders.
  • An air intake manifold includes an air distribution chamber body and intake ducts connecting the splitter body to the cylinder head of a row of cylinders by being secured to the cylinder head by clamps.
  • the two cylinder heads comprise two inlet ducts separated by cylinder, namely a filling duct and a so-called tumble conduit causing a vortex at the intake in order to homogenize the air-fuel mixture and optimize the combustion efficiency.
  • the intake manifold is composed of twelve intake ducts and the difficulties in making such a collector as many ducts arise for the most straight ducts possible and of identical lengths, and at the level of the watertightness of the duct. fastening flange of each pipe to the engine cylinder head and collector space at the center of the six-cylinder Vee section.
  • a solution for installing such an intake distributor would consist in aligning side by side the twelve intake ducts of a determined diameter, for example 42mm, but this solution is unrealistic because the width of this distributor would far exceed the volume allocated to the engine.
  • the present invention aims to eliminate the above disadvantages of the prior art by providing an air intake manifold for an internal combustion engine with one or two rows of cylinders, comprising a chamber with distribution chamber of air and pairs of separate intake ducts connecting the body to the cylinder head of a row of cylinders being fixed to the cylinder head by clamps, each pair of intake ducts opening into a corresponding cylinder and two intake ducts of the same pair being superimposed close to each other having their flanges for fixing to the adjacent yoke and substantially in the same plane, and which is characterized in that the upper intake ducts are attached to the body of the splitter at their opposite ends to those having the clamps for fixing to the bolt so as to allow their clearance from above the lower ducts to access the bolt. to the fixing screws of the flanges of the latter after having unscrewed the fastening flanges of the upper ducts to the cylinder head.
  • each upper duct is fixed to the body of the distributor by an articulation allowing the pipe to pivot from its close position above the lower duct to its position spaced from the latter and vice versa.
  • the hinge comprises a rigid lug secured perpendicularly to the end of the upper duct in the opposite direction to the lower duct and a rigid plate secured to the tundish body comprising a window in which the lug of the upper duct engages to maintain the duct. of this conduit to the body and allow the pivoting of the tab in the window during the release of the upper conduit relative to the lower conduit and, where appropriate, the complete withdrawal of the upper conduit.
  • each upper duct is fixed to the body of the distributor by a removable flange of this body by translation perpendicularly from above the lower duct.
  • the fixing flanges of the upper ducts to the cylinder head are rigidly connected to each other so as to allow the simultaneous release of these ducts relative to the lower ducts.
  • the lower ducts are rigidly fixed to the body of the distributor.
  • the upper ducts are connected to the body of the distributor by fixing flanges, the latter are rigidly connected to each other.
  • the body of the distributor and the intake ducts are made of aluminum and / or a plastic material.
  • Figure 1 shows in perspective an air intake distributor according to a first embodiment of the invention
  • Figure 2 is a bottom perspective view of the air intake manifold of Figure 1
  • Figure 3 is a perspective view similar to that of Figure 1 and showing the pivoting of upper intake ducts at an unobstructed position of the lower inlet ducts of the distributor
  • Figure 4 is an enlarged sectional view along the line IV-IV of Figure 3
  • Figure 5 is a perspective view of the air intake manifold of Figure 3 without the upper intake ducts
  • Figure 6 is a perspective view showing an air intake manifold according to a second embodiment of the invention.
  • the reference numeral 1 designates an air intake manifold that can be used for a two-row six-cylinder vee internal combustion engine.
  • This distributor comprises a body 2 provided with an air distribution chamber receiving air through an air inlet, not shown, and intake ducts 3, 4 connecting the body 2 to the yokes of the rows of cylinders .
  • the intake ducts 3, 4 are arranged in pairs of superimposed ducts, that is to say, for each pair, two lower ducts 3 and upper 4 arranged parallel to each other one above the other.
  • Each pair of intake ducts 3, 4 opens into a corresponding cylinder of the engine and the various ducts 3, 4 are fixed to the corresponding cylinder head of this engine by respective flanges 5, 6 secured to the ducts and fixed to the corresponding cylinder head by fastening screws 7.
  • the intake ducts 3, 4 are slightly curved, approaching a substantially rectilinear shape over most of their length and have substantially identical lengths.
  • the flanges 5, 6 for fixing the intake ducts 3, 4 have their bearing faces on the corresponding yoke located in the same plane. and are very close to each other so that access to the fixing screw 7 of the flanges 5 of the lower ducts 3 is very difficult because it is masked by the immediate presence of the flanges 6 of the upper intake ducts 4
  • the invention proposes two embodiments represented on the one hand in Figures 1 to 5 and on the other hand in Figure 6.
  • each upper duct 4 opposite to that comprising the fastening flange 6 is held in sealing manner on the flat face of the peripheral edge 8a delimiting the orifice 8 made in the corresponding wall 2a of the body 2 to put in communication fluid the conduit 4 with the air intake chamber via a tab 4a radially integral with the end of this conduit and which is engaged in a window 9a made through a plate 9 secured to the side wall 2a of the body 2 perpendicular thereto.
  • the seal between the end of each upper conduit 4 and the corresponding orifice 8 is provided by an annular seal 10 housed in a circular groove 11 formed in the end bearing face of this conduit.
  • each upper duct 4 When each upper duct 4 is secured to the cylinder head by its fastening flange 6, a force is exerted on the opposite end of this duct to crush the annular seal 10 between the end of this duct and the flat face of the duct. 8a support, the radial lug 4a of the duct 4 blocking the end 4 of this conduit bears on the face 8a.
  • the radial tabs 4a In the mounted position of all the upper ducts 4, the radial tabs 4a extend in opposite directions to the lower ducts 5.
  • the flanges 6 of each of the ends of the upper ducts 4 are rigidly connected to each other so as to allow their simultaneous assembly or disassembly.
  • the ends of the lower ducts 3 opposite their fastening flanges 5 are integral, for example by welding, the side wall 2a of the body 2 and the fastening flanges 5 are rigidly connected to each other. As shown in FIG. 2, the flanges 5, 6 respectively of the lower 3 and upper 4 ducts are arranged in staggered rows.
  • the ducts 4 can be completely removed from their fixing plates 9 to the body 2 as represented in FIG. 5.
  • the connection of the tabs 4a with their respective plates 9a constitutes an axis of articulation of the upper conduits 4 relative to the body 2 and which extends parallel to the side wall 2a because the plates 9 are located at the same level.
  • the disengagement of the upper ducts 4 by pivoting relative to the lower ducts 3 thus allows an operator to easily access the screws 7 of fixing the flanges 5 to disassemble the inlet manifold 1 of the engine or also unscrew one or more of the fastening screws 7 flanges 5 to repair a possible leakage between the flanges 5 and the cylinder head of the engine on which they are in supported by annular seals as is known in itself.
  • the mounting of the air intake manifold 1 to the engine is also very simple since it is sufficient first of all to fix the distributor 1 to the corresponding cylinder head by the fixing screws 7 of the flanges 5 of the lower ducts 3 and then a once this operation is completed, to introduce the tabs 4a of the upper ducts 4 into their respective windows 9a of the plates 9 and to simultaneously tilt the upper ducts 4 towards the lower ducts 3 to the position at which the ducts 4 can be fixed at the cylinder head by the fixing screws 7 of the flanges 6.
  • FIG. 6 differs from that of FIGS. 1 to 5 in that the upper ducts 4 comprise, at their ends opposite the flanges 6, flanges 13 for fastening these ducts to the side wall 2a of the body 2. by means of fixing screws 14.
  • the flanges 13 are rigidly connected to each other.
  • the splitter 1 is first connected to the motor by fixing the lower ducts 3 to the engine cylinder head by the fixing screws 7 of the flanges 5 and then fixing the upper ducts 4 to the engine and to the body 2 of the distributor by the fixing screws 7, 14 of the flanges 6, 13.
  • the assembly or disassembly of the upper ducts 4 of the embodiment of FIG. 6 is carried out simply by a translation of these ducts perpendicular to the lower ducts 3.
  • the body 2 of the distributor 1 and the ducts 3, 4 can be made of aluminum and / or in a plastic manner.
  • the ends of the upper ducts 4 can be fixed to the body 2 of the distributor 1 by latching means for disassembly of these ends of the body 2 by simple manual pulling.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Manufacturing & Machinery (AREA)
  • Characterised By The Charging Evacuation (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

The invention concerns an air intake splitter for an internal combustion engine. The splitter (1) is characterized in that the upper intake conduits (4) are fixed to the body (2) of the splitter at their ends opposite those comprising their flanges (6) to be fixed to the engine cylinder head so as to enable them to be released from above the lower conduits (3) to provide free access to the screws (7) fixing the flanges (5) of the lower conduits. The invention is applicable in the automotive industry.

Description

REPARTITEUR D'ADMISSION D'AIR POUR UN MOTEUR A COMBUSTION INTERNE AIR INTAKE DISTRIBUTOR FOR AN INTERNAL COMBUSTION ENGINE
La présente invention revendique la priorité de la demande française 0505589 déposée le 02/06/2005 dont le contenu (description, revendications, dessins) est incorporé ici par référence.The present invention claims the priority of the French application 0505589 filed on 02/06/2005 whose content (description, claims, drawings) is incorporated herein by reference.
La présente invention concerne un répartiteur d'admission d'air pour un moteur à combustion interne à une ou deux rangées de cylindres.The present invention relates to an air intake manifold for an internal combustion engine with one or two rows of cylinders.
Elle s'applique en particulier mais de manière non limitative à un moteur à six cylindres en vé dont la commande de distribution peut comporter des actionneurs de soupapes à commande électromagnétique et des soupapes débrayables hydrauliquement .It applies in particular but in a nonlimiting manner to a six-cylinder engine vee whose distribution control can comprise actuators of electromagnetically controlled valves and valves disengageable hydraulically.
Un répartiteur d'admission d'air comprend un corps à chambre de répartition d'air et des conduits d'admission reliant le corps du répartiteur à la culasse d'une rangée de cylindres en étant fixés à la culasse par des brides de fixation.An air intake manifold includes an air distribution chamber body and intake ducts connecting the splitter body to the cylinder head of a row of cylinders by being secured to the cylinder head by clamps.
Dans le cas d'un moteur à six cylindres en vé, les deux culasses comportent deux conduits d'admission séparées par cylindre, à savoir un conduit de remplissage et un conduit dit tumble provoquant un tourbillon à l'admission dans le but d'homogénéiser le mélange air- essence et optimiser le rendement de la combustion. Ainsi, le répartiteur d'admission est composé de douze conduits d'admission et les difficultés pour réaliser un tel collecteur à autant de conduits se posent pour des conduits les plus rectilignes possibles et de longueurs identiques, et au niveau de l'étanchéité de la bride de fixation de chaque conduite à la culasse du moteur et de l'encombrement du collecteur au centre de la partie en vé des six cylindres. Une solution d'implantation d'un tel répartiteur d'admission consisterait à aligner côte à côte les douze conduits d'admission d'un diamètre déterminé, par exemple de 42mm, mais cette solution est irréaliste du fait que la largeur de ce répartiteur dépasserait de beaucoup le volume alloué au moteur.In the case of a six-cylinder Vee engine, the two cylinder heads comprise two inlet ducts separated by cylinder, namely a filling duct and a so-called tumble conduit causing a vortex at the intake in order to homogenize the air-fuel mixture and optimize the combustion efficiency. Thus, the intake manifold is composed of twelve intake ducts and the difficulties in making such a collector as many ducts arise for the most straight ducts possible and of identical lengths, and at the level of the watertightness of the duct. fastening flange of each pipe to the engine cylinder head and collector space at the center of the six-cylinder Vee section. A solution for installing such an intake distributor would consist in aligning side by side the twelve intake ducts of a determined diameter, for example 42mm, but this solution is unrealistic because the width of this distributor would far exceed the volume allocated to the engine.
Une solution adoptée pour obtenir un répartiteur le plus compact possible a été de superposer les conduits d'admission par paires de conduits de remplissage et trumbles. Cependant, le problème que pose cette solution est la fixation à la culasse des brides des conduits inférieurs et l'étanchéité de ces brides à la culasse du fait que l'accès aux vis de fixation de chaque bride à la culasse est masqué par la proximité immédiate des brides de fixation des conduits supérieurs.A solution adopted to obtain the most compact distribution possible was to superimpose the intake ducts in pairs of filling and trumbles ducts. However, the problem posed by this solution is the fixing of the flanges of the lower ducts to the cylinder head and the sealing of these flanges to the cylinder head because the access to the fixing screws of each flange to the cylinder head is masked by the proximity Immediate flanges for fixing the upper ducts.
La présente invention a pour but d'éliminer les inconvénients ci-dessus de l'art antérieur en proposant un répartiteur d'admission d'air pour un moteur à combustion interne à une ou deux rangées de cylindres, comprenant un corps à chambre de répartition d'air et des paires de conduits séparés d'admission reliant le corps à la culasse d'une rangée de cylindres en étant fixés à la culasse par des brides de fixation, chaque paire de conduits d'admission débouchant dans un cylindre correspondant et deux conduits d'admission d'une même paire étant superposés à proximité l'un de l'autre en ayant leurs brides de fixation à la culasse adjacentes et sensiblement dans un même plan, et qui est caractérisé en ce que les conduits supérieurs d'admission sont fixés au corps du répartiteur à leurs extrémités opposées à celles comportant les brides de fixation à la culasse de manière à permettre leur dégagement d'au-dessus des conduits inférieurs pour accéder librement aux vis de fixation des brides de ces derniers après avoir dévissé les brides de fixation des conduits supérieurs à la culasse.The present invention aims to eliminate the above disadvantages of the prior art by providing an air intake manifold for an internal combustion engine with one or two rows of cylinders, comprising a chamber with distribution chamber of air and pairs of separate intake ducts connecting the body to the cylinder head of a row of cylinders being fixed to the cylinder head by clamps, each pair of intake ducts opening into a corresponding cylinder and two intake ducts of the same pair being superimposed close to each other having their flanges for fixing to the adjacent yoke and substantially in the same plane, and which is characterized in that the upper intake ducts are attached to the body of the splitter at their opposite ends to those having the clamps for fixing to the bolt so as to allow their clearance from above the lower ducts to access the bolt. to the fixing screws of the flanges of the latter after having unscrewed the fastening flanges of the upper ducts to the cylinder head.
Selon un mode de réalisation, chaque conduit supérieur est fixé au corps du répartiteur par une articulation permettant le pivotement du conduit de sa position proche au-dessus du conduit inférieur à sa position écartée de ce dernier et réciproquement. Avantageusement, l'articulation comprend une patte rigide solidaire perpendiculairement de l'extrémité du conduit supérieur en sens opposé au conduit inférieur et une plaque rigide solidaire du corps du répartiteur comportant une fenêtre dans laquelle s'engage la patte du conduit supérieur pour assurer le maintien de ce conduit au corps et permettre le pivotement de la patte dans la fenêtre lors du dégagement du conduit supérieur relativement au conduit inférieur et, le cas échéant, le retrait complet du conduit supérieur.According to one embodiment, each upper duct is fixed to the body of the distributor by an articulation allowing the pipe to pivot from its close position above the lower duct to its position spaced from the latter and vice versa. Advantageously, the hinge comprises a rigid lug secured perpendicularly to the end of the upper duct in the opposite direction to the lower duct and a rigid plate secured to the tundish body comprising a window in which the lug of the upper duct engages to maintain the duct. of this conduit to the body and allow the pivoting of the tab in the window during the release of the upper conduit relative to the lower conduit and, where appropriate, the complete withdrawal of the upper conduit.
Selon un autre mode de réalisation, chaque conduit supérieur est fixé au corps du répartiteur par une bride démontable de ce corps par translation perpendiculairement d'au-dessus du conduit inférieur. Les brides de fixation des conduits supérieurs à la culasse sont rigidement reliées les unes aux autres de manière à permettre le dégagement simultané de ces conduits relativement aux conduits inférieurs.According to another embodiment, each upper duct is fixed to the body of the distributor by a removable flange of this body by translation perpendicularly from above the lower duct. The fixing flanges of the upper ducts to the cylinder head are rigidly connected to each other so as to allow the simultaneous release of these ducts relative to the lower ducts.
Les conduits inférieurs sont rigidement fixés au corps du répartiteur.The lower ducts are rigidly fixed to the body of the distributor.
Dans le mode de réalisation où les conduits supérieurs sont reliés au corps du répartiteur par des brides de fixation, ces dernières sont reliées rigidement les unes aux autres . Le corps du répartiteur et les conduits d'admission sont réalisés en aluminium et/ou en une matière plastique.In the embodiment where the upper ducts are connected to the body of the distributor by fixing flanges, the latter are rigidly connected to each other. The body of the distributor and the intake ducts are made of aluminum and / or a plastic material.
L'invention sera mieux comprise, et d'autres buts, caractéristiques, détails et avantages de celle-ci apparaîtront plus clairement dans la description explicative qui va suivre faite en référence aux dessins annexés donnés uniquement à titre d'exemple illustrant deux modes de réalisation de l'invention et dans lesquelsThe invention will be better understood, and other objects, features, details and advantages thereof will appear more clearly in the explanatory description which follows with reference to the accompanying drawings given solely by way of example illustrating two embodiments. of the invention and in which
- la figure 1 représente en perspective un répartiteur d'admission d'air suivant un premier mode de réalisation de l'invention ; la figure 2 est une vue en perspective de dessous du répartiteur d'admission d'air de la figure 1 ; la figure 3 est une vue en perspective semblable à celle de la figure 1 et représentant le pivotement de conduits supérieurs d'admission à une position dégagée des conduits inférieurs d'admission du répartiteur ; la figure 4 est une vue en coupe agrandie suivant la ligne IV-IV de la figure 3 ; la figure 5 est une vue en perspective du répartiteur d'admission d'air de la figure 3 sans les conduits supérieurs d'admission ; et la figure 6 est une vue en perspective représentant un répartiteur d'admission d'air suivant un second mode de réalisation de l'invention. En se reportant aux figures, la référence 1 désigne un répartiteur d'admission d'air pouvant être utilisé pour un moteur à combustion interne à deux rangées de six cylindres en vé .- Figure 1 shows in perspective an air intake distributor according to a first embodiment of the invention; Figure 2 is a bottom perspective view of the air intake manifold of Figure 1; Figure 3 is a perspective view similar to that of Figure 1 and showing the pivoting of upper intake ducts at an unobstructed position of the lower inlet ducts of the distributor; Figure 4 is an enlarged sectional view along the line IV-IV of Figure 3; Figure 5 is a perspective view of the air intake manifold of Figure 3 without the upper intake ducts; and Figure 6 is a perspective view showing an air intake manifold according to a second embodiment of the invention. Referring to the figures, the reference numeral 1 designates an air intake manifold that can be used for a two-row six-cylinder vee internal combustion engine.
Ce répartiteur comprend un corps 2 pourvu d'une chambre de répartition d'air recevant de l'air par une entrée d'air, non représentée, et des conduits d'admission 3, 4 reliant le corps 2 aux culasses des rangées de cylindres.This distributor comprises a body 2 provided with an air distribution chamber receiving air through an air inlet, not shown, and intake ducts 3, 4 connecting the body 2 to the yokes of the rows of cylinders .
Les conduits d'admission 3, 4 sont agencés par paires de conduits superposés, c'est-à-dire, pour chaque paire, deux conduits inférieur 3 et supérieur 4 disposés parallèlement à proximité l'un au dessus de l'autre.The intake ducts 3, 4 are arranged in pairs of superimposed ducts, that is to say, for each pair, two lower ducts 3 and upper 4 arranged parallel to each other one above the other.
Chaque paire de conduits d'admission 3, 4 débouche dans un cylindre correspondant du moteur et les différents conduits 3, 4 sont fixés à la culasse correspondante de ce moteur par des brides respectives 5, 6 solidaires des conduits et fixées à la culasse correspondante par des vis de fixation 7.Each pair of intake ducts 3, 4 opens into a corresponding cylinder of the engine and the various ducts 3, 4 are fixed to the corresponding cylinder head of this engine by respective flanges 5, 6 secured to the ducts and fixed to the corresponding cylinder head by fastening screws 7.
Les conduits d'admission 3, 4 sont légèrement courbés en se rapprochant d'une forme sensiblement rectiligne sur la majeure partie de leur longueur et présentent des longueurs pratiquement identiques. En position d'installation du répartiteur d'admission 1 représentée en figure 1 ou en figure 6, les brides 5, 6 de fixation des conduits d'admission 3, 4 ont leurs faces d'appui sur la culasse correspondante situées dans un même plan et sont très proches les unes des autres de manière que l'accès au vis de fixation 7 des brides 5 des conduits inférieurs 3 est très difficile du fait qu'il est masqué par la présence immédiate des brides 6 des conduits supérieurs d'admission 4. Pour résoudre ce problème, l'invention propose deux modes de réalisation représentés d'une part aux figures 1 à 5 et d'autre part à la figure 6.The intake ducts 3, 4 are slightly curved, approaching a substantially rectilinear shape over most of their length and have substantially identical lengths. In the installation position of the intake manifold 1 shown in FIG. 1 or in FIG. 6, the flanges 5, 6 for fixing the intake ducts 3, 4 have their bearing faces on the corresponding yoke located in the same plane. and are very close to each other so that access to the fixing screw 7 of the flanges 5 of the lower ducts 3 is very difficult because it is masked by the immediate presence of the flanges 6 of the upper intake ducts 4 In order to solve this problem, the invention proposes two embodiments represented on the one hand in Figures 1 to 5 and on the other hand in Figure 6.
Selon le mode de réalisation représenté aux figures 1 à 5, l'extrémité de chaque conduit supérieur 4 opposée à celle comportant la bride de fixation 6 est maintenue en appui de façon étanche sur la face plane du bord périphérique 8a délimitant l'orifice 8 réalisé dans la paroi correspondante 2a du corps 2 pour mettre en communication de fluide le conduit 4 avec la chambre d'admission d'air par l'intermédiaire d'une patte 4a solidaire radialement de l'extrémité de ce conduit et qui est engagée dans une fenêtre 9a réalisée au travers d'une plaque 9 solidaire de la paroi latérale 2a du corps 2 perpendiculairement à celle-ci. L'étanchéité entre l'extrémité de chaque conduit supérieur 4 et l'orifice correspondant 8 est assurée par un joint annulaire 10 logé dans une rainure circulaire 11 formée dans la face d'appui d'extrémité de ce conduit. Lorsque chaque conduit supérieur 4 est solidarisé à la culasse par sa bride de fixation 6, un effort est exercé sur l'extrémité opposée de ce conduit pour écraser le joint annulaire d'étanchéité 10 entre l'extrémité de ce conduit et la face plane d'appui 8a, la patte radiale 4a du conduit 4 bloquant l'extrémité 4 de ce conduit en appui sur la face 8a. En position montée de tous les conduits supérieurs 4, les pattes radiales 4a s'étendent en sens opposé aux conduits inférieurs 5. De préférence, les brides 6 de chacune des extrémités des conduits supérieurs 4 sont reliées rigidement les unes aux autres de manière à permettre leur montage ou démontage simultané. Les extrémités des conduits inférieurs 3 opposées à leurs brides de fixation 5 sont solidaires, par exemple par soudage, de la paroi latérale 2a du corps 2 et les brides de fixation 5 sont reliées rigidement les unes aux autres . Comme représenté en figure 2, les brides 5, 6 respectivement des conduits inférieurs 3 et supérieurs 4 sont disposées en quinconce.According to the embodiment represented in FIGS. 1 to 5, the end of each upper duct 4 opposite to that comprising the fastening flange 6 is held in sealing manner on the flat face of the peripheral edge 8a delimiting the orifice 8 made in the corresponding wall 2a of the body 2 to put in communication fluid the conduit 4 with the air intake chamber via a tab 4a radially integral with the end of this conduit and which is engaged in a window 9a made through a plate 9 secured to the side wall 2a of the body 2 perpendicular thereto. The seal between the end of each upper conduit 4 and the corresponding orifice 8 is provided by an annular seal 10 housed in a circular groove 11 formed in the end bearing face of this conduit. When each upper duct 4 is secured to the cylinder head by its fastening flange 6, a force is exerted on the opposite end of this duct to crush the annular seal 10 between the end of this duct and the flat face of the duct. 8a support, the radial lug 4a of the duct 4 blocking the end 4 of this conduit bears on the face 8a. In the mounted position of all the upper ducts 4, the radial tabs 4a extend in opposite directions to the lower ducts 5. Preferably, the flanges 6 of each of the ends of the upper ducts 4 are rigidly connected to each other so as to allow their simultaneous assembly or disassembly. The ends of the lower ducts 3 opposite their fastening flanges 5 are integral, for example by welding, the side wall 2a of the body 2 and the fastening flanges 5 are rigidly connected to each other. As shown in FIG. 2, the flanges 5, 6 respectively of the lower 3 and upper 4 ducts are arranged in staggered rows.
Lorsque le répartiteur d'admission d'air 1 occupe sa position de montage au moteur représentée en figure 1 et que l'on souhaite accéder aux vis de fixation 7 des brides 5 des conduits inférieurs 3, il suffit de dévisser les vis de fixation 7 des brides 6 des conduits supérieurs 4 pour désolidariser les brides 6 de la culasse correspondante du moteur et de faire pivoter simultanément les conduits supérieurs 4 dans un sens les écartant des conduits inférieurs 3 comme représenté en figure 3 pour permettre l'utilisation d'outils de dévissage 12 des vis 7 des brides 5. Le pivotement des conduits supérieurs 4 est assuré par désengagement au moins partiel des pattes de maintien 4a des conduits 4 de leurs fenêtres respectives 9a à la position inclinée des conduits 4 représentée en figure 4 et, le cas échéant, les conduits 4 peuvent être complètement retirés de leurs plaques de fixation 9 au corps 2 comme représenté en figure 5. Ainsi, la liaison des pattes 4a avec leurs plaques respectives 9a constitue un axe d'articulation des conduits supérieurs 4 relativement au corps 2 et qui s'étend parallèlement à la paroi latérale 2a du fait que les plaques 9 sont situées à un même niveau. Le dégagement des conduits supérieurs 4 par pivotement relativement aux conduits inférieurs 3 permet donc à un opérateur d'accéder facilement aux vis 7 de fixation des brides 5 pour démonter le répartiteur d'admission 1 du moteur ou également dévisser une ou plusieurs des vis de fixation 7 des brides 5 pour réparer un éventuel défaut d'étanchéité entre les brides 5 et la culasse du moteur sur laquelle elles sont en appui par l'intermédiaire de joints d'étanchéité annulaires comme cela est connu en soit.When the air intake manifold 1 occupies its mounting position to the engine shown in Figure 1 and it is desired to access the fixing screws 7 flanges 5 of the lower ducts 3, simply unscrew the fastening screws 7 flanges 6 of the upper ducts 4 to separate the flanges 6 of the corresponding cylinder head of the engine and to simultaneously rotate the upper ducts 4 in a direction away from the lower ducts 3 as shown in Figure 3 to allow the use of tools of unscrewing 12 of the screws 7 of the flanges 5. The pivoting of the upper ducts 4 is ensured by at least partial disengagement of the retaining tabs 4a of the ducts 4 of their respective windows 9a at the inclined position of the ducts 4 shown in FIG. Where appropriate, the ducts 4 can be completely removed from their fixing plates 9 to the body 2 as represented in FIG. 5. Thus, the connection of the tabs 4a with their respective plates 9a constitutes an axis of articulation of the upper conduits 4 relative to the body 2 and which extends parallel to the side wall 2a because the plates 9 are located at the same level. The disengagement of the upper ducts 4 by pivoting relative to the lower ducts 3 thus allows an operator to easily access the screws 7 of fixing the flanges 5 to disassemble the inlet manifold 1 of the engine or also unscrew one or more of the fastening screws 7 flanges 5 to repair a possible leakage between the flanges 5 and the cylinder head of the engine on which they are in supported by annular seals as is known in itself.
Le montage du répartiteur d'admission d'air 1 au moteur est également très simple puisqu'il suffit tout d'abord de fixer le répartiteur 1 à la culasse correspondante par les vis de fixation 7 des brides 5 des conduits inférieurs 3 puis, une fois cette opération terminée, d'introduire les pattes 4a des conduits supérieurs 4 dans leurs fenêtres respectives 9a des plaques 9 et de faire basculer simultanément les conduits supérieurs 4 vers les conduits inférieurs 3 jusqu'à la position à laquelle les conduits 4 peuvent être fixés à la culasse par les vis de fixation 7 des brides 6.The mounting of the air intake manifold 1 to the engine is also very simple since it is sufficient first of all to fix the distributor 1 to the corresponding cylinder head by the fixing screws 7 of the flanges 5 of the lower ducts 3 and then a once this operation is completed, to introduce the tabs 4a of the upper ducts 4 into their respective windows 9a of the plates 9 and to simultaneously tilt the upper ducts 4 towards the lower ducts 3 to the position at which the ducts 4 can be fixed at the cylinder head by the fixing screws 7 of the flanges 6.
Le mode de réalisation représenté en figure 6 ne diffère de celui des figures 1 à 5 en ce que les conduits supérieurs 4 comportent, à leurs extrémités opposées aux brides 6, des brides 13 de fixation de ces conduits à la paroi latérale 2a du corps 2 par l'intermédiaire de vis de fixation 14. De préférence, les brides 13 sont reliées rigidement les unes aux autres.The embodiment shown in FIG. 6 differs from that of FIGS. 1 to 5 in that the upper ducts 4 comprise, at their ends opposite the flanges 6, flanges 13 for fastening these ducts to the side wall 2a of the body 2. by means of fixing screws 14. Preferably, the flanges 13 are rigidly connected to each other.
Lorsque l'on souhaite accéder aux vis 7 de fixation des brides 5 des conduits inférieurs 3 du répartiteur 1 au moteur, il suffit de dévisser les vis 7 de fixation des brides 6 et les vis 14 de fixation des brides 13 pour permettre le retrait des conduits supérieurs 4 de la culasse du moteur et du corps 2 du répartiteur 1 pour permettre l'introduction des outils 12 de dévissage des vis de fixation 7 des brides 5.When it is desired to access the screws 7 for fixing the flanges 5 of the lower conduits 3 of the distributor 1 to the motor, it is sufficient to unscrew the screws 7 for fixing the flanges 6 and the screws 14 for fastening the flanges 13 to allow the removal of the upper ducts 4 of the engine cylinder head and the body 2 of the distributor 1 to allow the introduction of the tools 12 for unscrewing the fastening screws 7 of the flanges 5.
Le montage du répartiteur 1 au moteur s'effectue tout d'abord en fixant les conduits inférieurs 3 à la culasse du moteur par les vis de fixation 7 des brides 5 et fixant ensuite les conduits supérieurs 4 au moteur et au corps 2 du répartiteur par les vis de fixation 7, 14 des brides 6 , 13.The splitter 1 is first connected to the motor by fixing the lower ducts 3 to the engine cylinder head by the fixing screws 7 of the flanges 5 and then fixing the upper ducts 4 to the engine and to the body 2 of the distributor by the fixing screws 7, 14 of the flanges 6, 13.
Le montage ou démontage des conduits supérieurs 4 du mode de réalisation de la figure 6, s'effectue tout simplement par une translation de ces conduits perpendiculairement aux conduits inférieurs 3.The assembly or disassembly of the upper ducts 4 of the embodiment of FIG. 6 is carried out simply by a translation of these ducts perpendicular to the lower ducts 3.
Le corps 2 du répartiteur 1 ainsi que les conduits 3, 4 peuvent être réalisés en aluminium et/ou en une manière plastique. Par exemple, il est possible de réaliser le corps 2 de la chambre de répartition d'air et les conduits inférieurs 3 solidaires de ce corps en aluminium et de réaliser les conduits supérieurs 4 en une matière plastique.The body 2 of the distributor 1 and the ducts 3, 4 can be made of aluminum and / or in a plastic manner. For example, it is possible to make the body 2 of the air distribution chamber and the lower ducts 3 integral with this aluminum body and to make the upper ducts 4 of a plastic material.
Selon un autre mode de réalisation, les extrémités des conduits supérieurs 4 peuvent être fixées au corps 2 du répartiteur 1 par des moyens d' encliquetage permettant le démontage de ces extrémités du corps 2 par simple traction manuelle.According to another embodiment, the ends of the upper ducts 4 can be fixed to the body 2 of the distributor 1 by latching means for disassembly of these ends of the body 2 by simple manual pulling.
En réalisant un répartiteur d'admission d'air dont les conduits supérieurs d'admission sont montés articulés au corps du répartiteur et/ou démontables de ce dernier, l'accès aux vis de fixation des conduits inférieurs du répartiteur au moteur ne pose plus de problème. By creating an air intake manifold whose upper intake ducts are mounted articulated to the body of the distributor and / or removable from the latter, access to the fastening screws of the lower ducts of the distributor to the engine does not pose more. problem.

Claims

REVEND ICATIONS
1. Répartiteur d'admission d'air (1) pour un moteur à combustion interne à une ou deux rangées de cylindres, comprenant un corps (2) à chambre de répartition d'air et des paires de conduits séparés d'admission (3, 4) reliant le corps (2) à la culasse d'une rangée de cylindres en étant fixés à la culasse par des brides de fixation (5, 6), chaque paire (3, 4) de conduits d'admission débouchant dans un cylindre correspondant et deux conduits d'admission (3, 4) d'une même paire étant superposés à proximité l'un de l'autre en ayant leurs brides (5, 6) de fixation à la culasse adjacentes et sensiblement dans un même plan, caractérisé en ce que les conduits supérieurs d'admission (4) sont fixés au corps (2) du répartiteur (1) à leurs extrémités opposées à celles comportant les brides (6) de fixation à la culasse de manière à permettre leur dégagement d'au-dessus des conduits inférieurs (3) pour accéder librement aux vis (7) de fixation des brides (5) de ces derniers après avoir dévissé les brides (6) de fixation des conduits supérieurs (4) de la culasse.An air intake distributor (1) for an internal combustion engine having one or two rows of cylinders, comprising an air distribution chamber body (2) and pairs of separate intake ducts (3). 4) connecting the body (2) to the cylinder head of a row of cylinders by being fastened to the cylinder head by clamps (5, 6), each pair (3, 4) of intake ducts opening into a corresponding cylinder and two inlet ducts (3, 4) of the same pair being superimposed close to each other having their flanges (5, 6) for attachment to the adjacent yoke and substantially in the same plane , characterized in that the upper intake ducts (4) are attached to the body (2) of the distributor (1) at their opposite ends to those having the flanges (6) for fixing to the cylinder head so as to allow their release above the lower ducts (3) to freely access the screws (7) for fixing the flanges (5) of this s after unscrewing the flanges (6) for fixing the upper ducts (4) of the cylinder head.
2. Répartiteur selon la revendication 1, caractérisé en ce que chaque conduit supérieur (4) est fixé au corps (2) du répartiteur (1) par une articulation permettant le pivotement du conduit (4) de sa position proche au-dessus du conduit inférieur (3) à sa position écartée de ce dernier et réciproquement .2. Dispatcher according to claim 1, characterized in that each upper duct (4) is fixed to the body (2) of the distributor (1) by a hinge allowing the pivoting of the duct (4) from its close position above the duct lower (3) to its position separated from the latter and vice versa.
3. Répartiteur selon la revendication 2, caractérisé en ce que l'articulation comprend une patte rigide (4a) solidaire perpendiculairement de l'extrémité du conduit supérieur (4) en sens opposé au conduit inférieur (3) et une plaque rigide (9) solidaire du corps3. Dispatcher according to claim 2, characterized in that the hinge comprises a rigid lug (4a) integral perpendicularly to the end of the upper duct (4) in the opposite direction to the lower duct (3) and a rigid plate (9). solidary of the body
(2) du répartiteur (1) comportant une fenêtre (9a) dans laquelle s'engage la patte (4a) du conduit supérieur (4) pour assurer le maintien de ce conduit au corps (2) et permettre le pivotement de la patte (4a) dans la fenêtre (9a) lors du dégagement du conduit supérieur (4) relativement au conduit inférieur (3) et, le cas échéant, le retrait complet du conduit supérieur (4) .(2) of the distributor (1) having a window (9a) in which engages the tab (4a) of the upper duct (4) to maintain the duct to the body (2) and allow the pivoting of the tab ( 4a) in the window (9a) during the release of the upper duct (4) relative to the lower duct (3) and, where appropriate, the complete removal of the upper duct (4).
4. Répartiteur selon la revendication 1, caractérisé en ce que chaque conduit supérieur (4) est fixé au corps (2) du répartiteur (1) par une bride (13) démontable de ce corps par translation perpendiculairement d'au-dessus du conduit inférieur (3).4. Dispatcher according to claim 1, characterized in that each upper duct (4) is fixed to the body (2) of the distributor (1) by a flange (13) removable from the body by translation perpendicularly above the duct lower (3).
5. Répartiteur selon l'une des revendications 1 à 4, caractérisé en ce que les brides (6) de fixation des conduits supérieurs (4) à la culasse sont rigidement reliées les unes aux autres de manière à permettre le dégagement simultané de ces conduits relativement aux conduits inférieurs (3) . 5. Dispatcher according to one of claims 1 to 4, characterized in that the flanges (6) for fixing the upper ducts (4) to the cylinder head are rigidly connected to each other so as to allow the simultaneous release of these ducts relative to the lower ducts (3).
6. Répartiteur selon lune des revendications précédentes, caractérisé en ce que les conduits inférieurs (3) sont rigidement fixés au corps (2) du répartiteur (1) .6. Distributor according to one of the preceding claims, characterized in that the lower ducts (3) are rigidly fixed to the body (2) of the distributor (1).
7. Répartiteur selon l'une des revendications 4 à 6, caractérisé en ce que les brides (13) de fixation des conduits supérieurs (4) au corps (2) du répartiteur (1) sont reliées rigidement les unes aux autres.7. Distributor according to one of claims 4 to 6, characterized in that the flanges (13) for fixing the upper ducts (4) to the body (2) of the distributor (1) are rigidly connected to each other.
8. Répartiteur selon l'une des revendications précédentes, caractérisé en ce que le corps (2) du répartiteur (1) et les conduits d'admission (3, 4) sont réalisés en aluminium et/ou en une matière plastique. 8. Distributor according to one of the preceding claims, characterized in that the body (2) of the distributor (1) and the intake ducts (3, 4) are made of aluminum and / or a plastic material.
EP06794472A 2005-06-02 2006-05-31 Air intake splitter for an internal combustion engine Withdrawn EP1888908A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0505589A FR2886684B1 (en) 2005-06-02 2005-06-02 AIR INTAKE DISTRIBUTOR FOR AN INTERNAL COMBUSTION ENGINE.
PCT/FR2006/050495 WO2007003829A2 (en) 2005-06-02 2006-05-31 Air intake splitter for an internal combustion engine

Publications (1)

Publication Number Publication Date
EP1888908A2 true EP1888908A2 (en) 2008-02-20

Family

ID=35636858

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06794472A Withdrawn EP1888908A2 (en) 2005-06-02 2006-05-31 Air intake splitter for an internal combustion engine

Country Status (3)

Country Link
EP (1) EP1888908A2 (en)
FR (1) FR2886684B1 (en)
WO (1) WO2007003829A2 (en)

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Publication number Priority date Publication date Assignee Title
CN101566115B (en) * 2008-04-23 2013-05-01 现代自动车株式会社 Intake manifold for vehicle

Citations (1)

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Publication number Priority date Publication date Assignee Title
EP0867610A2 (en) * 1997-03-28 1998-09-30 Hidaka Engineering Co., Ltd. Air intake system for internal combustion engine

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JPH02215961A (en) * 1989-02-17 1990-08-28 Nissan Motor Co Ltd Intake manifold device for engine
US5168838A (en) * 1990-10-29 1992-12-08 Mazda Motor Corporation Engine induction system
WO1999002828A1 (en) * 1997-07-11 1999-01-21 Filterwerk Mann+Hummel Gmbh Duct system, particularly an internal combustion engine intake manifold
US6092498A (en) * 1999-03-01 2000-07-25 Ford Global Technologies, Inc. Modular integrated intake manifold
WO2002031341A1 (en) * 2000-10-10 2002-04-18 Filterwerk Mann & Hummel Gmbh Air intake tube for an internal combustion engine

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
EP0867610A2 (en) * 1997-03-28 1998-09-30 Hidaka Engineering Co., Ltd. Air intake system for internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101566115B (en) * 2008-04-23 2013-05-01 现代自动车株式会社 Intake manifold for vehicle

Also Published As

Publication number Publication date
FR2886684A1 (en) 2006-12-08
WO2007003829A2 (en) 2007-01-11
WO2007003829A3 (en) 2007-02-22
FR2886684B1 (en) 2007-09-28

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