EP1934461A1 - Device for supplying air to a multiple-cylinder engine head - Google Patents

Device for supplying air to a multiple-cylinder engine head

Info

Publication number
EP1934461A1
EP1934461A1 EP06831263A EP06831263A EP1934461A1 EP 1934461 A1 EP1934461 A1 EP 1934461A1 EP 06831263 A EP06831263 A EP 06831263A EP 06831263 A EP06831263 A EP 06831263A EP 1934461 A1 EP1934461 A1 EP 1934461A1
Authority
EP
European Patent Office
Prior art keywords
air
distributor
axis
positioning
distributors
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP06831263A
Other languages
German (de)
French (fr)
Other versions
EP1934461B1 (en
Inventor
Jean-Christophe Lucas
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
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 Renault SAS filed Critical Renault SAS
Publication of EP1934461A1 publication Critical patent/EP1934461A1/en
Application granted granted Critical
Publication of EP1934461B1 publication Critical patent/EP1934461B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—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
    • F02M35/104—Intake manifolds
    • 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

Definitions

  • the invention relates to a device for supplying air to a multi-cylinder engine cylinder head comprising two rows of air intake ducts to the cylinders.
  • such an air supply device comprises a first and a second air distributor arranged, or to arrange, and to fix on the cylinder head, along the air mouths. said air inlet ducts of said cylinder head, which communicate with the combustion chambers of the cylinders.
  • Such air distributors formed by a first and a second air distributor are typically present on in-line V-engines, for example 6-cylinder engines.
  • the air distributors are supplied with air via an air distributor means.
  • the air distributor means is integrated in one piece with one of the air distributors and is sealingly connected to the other air distributor via a connection via fitting using an O - ring for sealing.
  • the object of the invention is to propose a solution: - which makes it possible to reduce the volume of the parts involved,
  • the aforementioned air supply device which therefore comprises a first and second air distributors, further comprises, replacing the air distributor means integrated with one of these distributors, an air distributor comprising at least two air outlets arranged, or arranged, in front of the respective air mouth of said distributors, respectively, this independent air distributor and the air distributors further comprising, in the immediate environment of their said mouths, and to ensure a relative positioning required and a fixation between them: - between the air distributor and one of the air distributors, first complementary means of positioning and support sliding pivoting along an axis of engagement between the air distributor and the distributor, with: a precise relative centering, substantially without play, along this axis of engagement, a possible pivot about said axis and a tran slation along this same axis, and, between said air distributor and the other air distributor:
  • second complementary positioning and support means comprising:
  • the air supply means of the cylinders will therefore comprise, overall, three main parts: the upstream air distributor and the two downstream air distributors, with positioning means, centering and fixing optimized.
  • the air distributors are each connected, at a first end of their direction of elongation, to an upstream air distributor and / or, at a second downstream end, opposite the first, to an air transfer pipe promoting the good distribution of air there.
  • one or other of these "air distributor” and “air transfer manifold” can be made as before and it is recommended that this implementation is preferably applied at least to the input air distributor (upstream) which will therefore include several internal conduits (a priori divided into three) with three air mouths, one receiving external air (typically to from a throttle body), the other two being therefore arranged in front of the corresponding air mouth of the splitters.
  • both the upstream air distributor and the aforementioned downstream air transfer pipe (s) are made with the positioning, centering and fixing means presented above. .
  • the first complementary sliding pivot positioning means between the air distributor and the air distributor concerned will comprise an annular skirt protruding around the corresponding mouth of the air distributor, this skirt closely covering an outer edge. of the corresponding mouth of the distributor facing it, to ensure a substantially radial fit without interference, along said axis of engagement.
  • the first complementary sliding pivot positioning means has a bore having a section adapted to provide said accurate relative centering along the axis of engagement between the distributor and the air distributor concerned, - and that the additional support means comprise two bearing surfaces respectively formed on the distributor and the other distributor, to provide a flat support between them, substantially perpendicular to the engagement axis along which extends 1 aforesaid bore.
  • the third complementary fixing means comprise three screws: one (at least) of these screws ensuring the stop in rotation and thus defining said locating means, in cooperation with a hole; non-circular formed on at least one of the distributor and the dispatcher considered, - these screws further ensuring, together, a tight attachment between the distributor and the corresponding distributor, also blocking the distributor relative to the other distributor.
  • FIG. 1 is a schematic perspective and exploded view of a portion of an engine according to the invention
  • FIG. 2 shows the three parts constituted by the upstream distributor of the air intake and the two distributors together, the air transfer manifold appearing in phantom lines at the top of the figure, which corresponds to a perspective opposite to that of FIG. of Figure 1
  • FIG. 3 is a front view, in the direction of the arrow III of FIG. 1, of the only upstream inlet air distributor;
  • FIG. 4 is a partial view in section along the line IV-IV of Figure 3, the connections between the distributor considered and each distributor being shown separately, independently of one another.
  • FIG. 1 shows two air distributors 1, 3 designed, in a manner known per se, for distributing the intake air to the two sets of air intake mouths (marks 5a, 5b, 5c for one of them) of a cylinder head 9 of multicylinder engine 11 covering a crankcase of the engine.
  • Each air distributor 1, 3 comprises at least one air intake mouth and several mouths, or groups of mouths, distribution or air outlet to said corresponding air mouth of the cylinder head 9.
  • These mouths have end surfaces, such as 15 for the mouthpiece Id, which serves as a support, and 17 for the mouthpiece 3d, which has, along the axis of engagement 30, a clearance e_ with the facing surface 25 ( see Figure 4).
  • Air distributor side marked 19 in Figures 1, 3 and 4, there are three air openings, since it is here an air intake distributor.
  • Figure 1, 21a identifies the air inlet zone in the distributor 19 (see also Figure 3). The air is thus admitted substantially parallel to the axes 10 and 30.
  • these surfaces 17 and 25 will therefore, axially, in the immediate vicinity, one in front of the other, when the parts 1, 3 and 19 will be fixed together, after being correctly positioned and centered, according to the invention.
  • said surfaces will be planes.
  • these planes are perpendicular to the axis 10 or 30 considered, the axis 30 constituting the axis of engagement along which we will approach, and here engage, the outlet mouth of the distributor 19 on the mouthpiece 3d, sliding pivot.
  • said surfaces or support planes will cooperate in pairs to correctly connect and position the air distributor 19 vis-à-vis each of the two distributors 1, 3, with the mouths and surfaces concerned in support or face to face.
  • these co-operating surfaces are completed:
  • the fitting 27 is favorably made, as illustrated in FIGS. 1, 3 and 4, by a skirt 37 formed around the mouth 21c, this over the entire periphery of the corresponding end edge.
  • this skirt 37 covers the end of the mouthpiece 3d of the distributor tightly and externally, until it is therefore placed axially as close as possible to the end surfaces 17, 25, as explained above, the seal 35 then being compressed radially.
  • three screws 39a, 39b, 39c have been used which can pass for at least some with clearance (in their unsealed state) two sets of three holes, such as 41a and 43a for the screw 39a which will serve to ensure the locating effect sought, in connection with the corresponding orifice 41a and its vis-à-vis 43a, said holes being formed through the rim of one side of the mouth Id, and the other of the mouth 21b, and thus through the aforementioned surfaces 15 and 23 transverse to the axis 10 common to these two mouths.
  • the threads of the screws 39a, 39b, 39c engage threads formed in the three holes (such as 43a) of the flange 15 of the distributor 1.
  • the displacement 29 is stopped at the location of the bearing surface 15, by the engagement of the screws in their holes, such as the hole 41a, here formed in the outer rim 45 of the air distributor.
  • the screw 39a also serves for locating, the three screws forming here the fastening means 33 can then be clamped on the distributor 1, through their corresponding holes, to ensure the desired tight attachment.
  • the two air distributors 1, 3 can also be interconnected by the same isostatic assembly system acting without deformation of the parts, since at this end it will be provided, as illustrated in Figure 2, to connect their corresponding mouths 50, 51, via an air transfer pipe 53.
  • This air transfer pipe 53 will therefore preferably bear the same means 27, 31, 33 for positioning and centering (sliding pivot, surface support, locating,) and fastening as the distributor 19.
  • the axis of engagement (previously 30) between the air transfer tube 53 and the air distributor 3 has been identified 60.
  • the difference between the distributor 19 and the air transfer manifold 53 here relates to their internal construction.
  • the distributor 19 here comprises three main air ducts: one for admission (on which opens its air intake opening 21a) the other two bringing air to the respective outlet mouths 21b and 21c, these three conduits of course communicating with each other inside the dispenser.
  • the air transfer tube 53 contains only one duct, with an opening, respectively 55 and 57, at each end, to let air circulate between the two air distributors 1 and 3, respectively.
  • Figure 2 at 59, which has been a recirculation air inlet (EGR) can arrive transversely in the air intake manifold 19.
  • EGR recirculation air inlet

Abstract

A device including two air distribution chambers configured to be fixed on a cylinder head and an air distributor and/or an air transfer pipe, the air transfer pipe and the air distribution chambers including, in the immediate surroundings of their nozzles, for being relatively positioned and assembled together: between the air distributor and one of the air distribution chambers, a positioning and supporting mechanism for support and precise relative centering, substantially without clearance, except for possible pivoting about the axis of engagement, once the centering has been provided along the axis, and, between the air distributor and the other air distribution chamber: an additional support mechanism and locating mechanism. A fixing mechanism locks, at the required swivel angle and in relative support, each air distribution chamber and the air distributor.

Description

DISPOSITIF D 'ALIMENTATION EN AIR D'UNE CULASSE DE MOTEUR MULTICYLINDRES DEVICE FOR SUPPLYING AIR FROM A MULTI-CYLINDER MOTOR CYLINDER HEAD
L'invention concerne un dispositif d'alimentation en air d'une culasse de moteur multicylindres comprenant deux rangées de conduits d'entrée d'air vers les cylindres .The invention relates to a device for supplying air to a multi-cylinder engine cylinder head comprising two rows of air intake ducts to the cylinders.
Dans US-A-4 895 112, comme ici, un tel dispositif d'alimentation en air comprend un premier et un second répartiteurs d'air disposés, ou à disposer, et à fixer sur la culasse, le long des embouchures d'air desdits conduits d'entrée d'air de cette culasse, lesquels communiquent avec les chambres de combustion des cylindres .In US-A-4,895,112, as here, such an air supply device comprises a first and a second air distributor arranged, or to arrange, and to fix on the cylinder head, along the air mouths. said air inlet ducts of said cylinder head, which communicate with the combustion chambers of the cylinders.
De tels répartiteurs d'air formés par un premier et un second répartiteurs d'air sont typiquement présents sur les moteurs en V à cylindres en ligne, par exemple des moteurs 6 cylindres .Such air distributors formed by a first and a second air distributor are typically present on in-line V-engines, for example 6-cylinder engines.
Les répartiteurs d'air sont alimentés en air via un moyen distributeur d'air.The air distributors are supplied with air via an air distributor means.
Dans US-A-4 895 112, le moyen distributeur d'air est intégré en une seule pièce avec l'un des répartiteurs d'air et est relié, de façon étanche, à l'autre répartiteur d'air via une liaison par emmanchement utilisant un joint torique pour l' étanchéité.In US-A-4,895,112, the air distributor means is integrated in one piece with one of the air distributors and is sealingly connected to the other air distributor via a connection via fitting using an O - ring for sealing.
Ceci impose une conception et une réalisation monoblocs du moyen distributeur d'air et du moyen répartiteur concerné.This requires a one-piece design and implementation of the air distributor means and the dispatcher means concerned.
Il s'agit d'une pièce massive.This is a massive piece.
Ceci peut en outre poser des problèmes de mise en place et rendre plus difficile les conditions d'intervention sur le moteur, par exemple lors d'une maintenance .This can also pose implementation problems and make it more difficult to work on the engine, for example during maintenance.
L'invention a pour objet de proposer une solution: - qui permette de réduire le volume des pièces concernées à réaliser,The object of the invention is to propose a solution: - which makes it possible to reduce the volume of the parts involved,
- qui facilite sur certains moteurs la mise en place de ces moyens d'alimentation en air (ici les répartiteurs et moyen distributeur d'air), ceci en particulier sur les moteurs en V et/ou à cylindres en lignes,- Which facilitates on some engines the establishment of these air supply means (here splitters and air distributor), this in particular on the V-engines and / or cylinders in lines,
- et qui assure un positionnement, un centrage et une fixation appropriés entre les différentes pièces concernées, en permettant des conditions favorables d'intervention, compatibles avec une fabrication en série et un assemblage isostatique.- And which ensures proper positioning, centering and fixing between the various parts concerned, allowing favorable conditions of intervention, compatible with mass production and isostatic assembly.
Dans ce but, il est proposé que le dispositif d'alimentation en air précité, qui comprend donc un premier et second répartiteurs d'air, comprenne en outre, en remplacement du moyen distributeur d' air intégré à l'un de ces répartiteurs, un distributeur d'air comprenant au moins deux embouchures d'air disposés, ou à disposer, en face de l'embouchure d'air concernée desdits répartiteurs, respectivement, ce distributeur d'air indépendant et les répartiteurs d' air comprenant en outre, dans l'environnement immédiat de leurs dites embouchures, et pour assurer un positionnement relatif requis et une fixation entre eux : - entre le distributeur d'air et l'un des répartiteurs d'air, des premiers moyens complémentaires de positionnement et d'appui à pivot glissant suivant un axe d'engagement entre ce distributeur d'air et le répartiteur, avec : un centrage relatif précis, sensiblement sans jeu, suivant cet axe d'engagement, un possible pivotement autour dudit axe et une translation suivant ce même axe, - et, entre ledit distributeur d'air et l'autre répartiteur d' air :For this purpose, it is proposed that the aforementioned air supply device, which therefore comprises a first and second air distributors, further comprises, replacing the air distributor means integrated with one of these distributors, an air distributor comprising at least two air outlets arranged, or arranged, in front of the respective air mouth of said distributors, respectively, this independent air distributor and the air distributors further comprising, in the immediate environment of their said mouths, and to ensure a relative positioning required and a fixation between them: - between the air distributor and one of the air distributors, first complementary means of positioning and support sliding pivoting along an axis of engagement between the air distributor and the distributor, with: a precise relative centering, substantially without play, along this axis of engagement, a possible pivot about said axis and a tran slation along this same axis, and, between said air distributor and the other air distributor:
* des seconds moyens complémentaires de positionnement et d' appui comprenant :second complementary positioning and support means comprising:
- des moyens additionnels d'appui,- additional means of support,
- et des moyens de locating pour un arrêt du pivotement autour dudit axe d'engagement, une fois atteint l'angle de pivotement relatif nécessaire pour assurer ledit positionnement requis entre le distributeur et les répartiteurs d'air,and locating means for stopping pivoting about said engagement axis, once reached the relative pivoting angle necessary to ensure said required positioning between the distributor and the air distributors,
* et des troisièmes moyens complémentaires de fixation, pour bloquer, audit angle de pivotement nécessaire et en appui relatif, le distributeur d'air et le répartiteur correspondant.and third complementary fastening means for locking, to said necessary pivot angle and in relative support, the air distributor and the corresponding distributor.
Ainsi, les moyens d'alimentation en air des cylindres comprendront donc, globalement, trois pièces principales : le distributeur d' air en amont et les deux répartiteurs d'air en aval, avec des moyens de positionnement, centrage et fixation optimisés.Thus, the air supply means of the cylinders will therefore comprise, overall, three main parts: the upstream air distributor and the two downstream air distributors, with positioning means, centering and fixing optimized.
Pour favoriser l'alimentation en air des répartiteurs, et donc des cylindres, en particulier sur les moteurs en V et/ou à cylindres en ligne (s), on conseille que les répartiteurs d' air soient chacun reliés, à une première extrémité de leur direction d'allongement, à un distributeur d'air amont et/ou, à une seconde extrémité aval, opposée à la première, à une tubulure de transfert d'air favorisant la bonne distribution de l'air à cet endroit. Ici, l'un ou l'autre de ces « distributeur d'air » et « tubulure de transfert d'air » pourront être réalisés comme précédemment et l'on conseille que cette réalisation soit appliquée de préférence au moins au distributeur d'air d'entrée (amont) qui comprendra donc plusieurs conduits internes (a priori divisés en trois) avec trois embouchures d'air, l'une recevant de l'air extérieur (typiquement à partir d'un boîtier de papillon) , les deux autres étant donc à disposer en face de l'embouchure d'air correspondante des répartiteurs.To promote the air supply of the distributors, and therefore of the cylinders, in particular on the V and / or inline cylinders, it is advisable that the air distributors are each connected, at a first end of their direction of elongation, to an upstream air distributor and / or, at a second downstream end, opposite the first, to an air transfer pipe promoting the good distribution of air there. Here, one or other of these "air distributor" and "air transfer manifold" can be made as before and it is recommended that this implementation is preferably applied at least to the input air distributor (upstream) which will therefore include several internal conduits (a priori divided into three) with three air mouths, one receiving external air (typically to from a throttle body), the other two being therefore arranged in front of the corresponding air mouth of the splitters.
Dans le mode de réalisation préféré, on conseille que tant le distributeur d' air amont que la tubulure de transfert d'air aval précité (e) s soient réalisé (e) s avec les moyens de positionnement, centrage et fixation présentés ci-avant.In the preferred embodiment, it is recommended that both the upstream air distributor and the aforementioned downstream air transfer pipe (s) are made with the positioning, centering and fixing means presented above. .
Ainsi, on rendra encore plus accessible cette partie du moteur lors de son assemblage, tout en s' assurant que cet assemblage sera à la fois performant et isostatique.Thus, it will make even more accessible this part of the engine during its assembly, while ensuring that this assembly will be both efficient and isostatic.
Favorablement, les premiers moyens complémentaires de positionnement à pivot glissant entre le distributeur d' air et le répartiteur d' air concernés comprendront une jupe annulaire, en saillie autour de l'embouchure correspondante du distributeur d'air, cette jupe recouvrant étroitement un bord extérieur de l'embouchure correspondante du répartiteur lui faisant face, pour assurer un emboîtement sensiblement sans jeu radial, suivant ledit axe d' engagement .Favorably, the first complementary sliding pivot positioning means between the air distributor and the air distributor concerned will comprise an annular skirt protruding around the corresponding mouth of the air distributor, this skirt closely covering an outer edge. of the corresponding mouth of the distributor facing it, to ensure a substantially radial fit without interference, along said axis of engagement.
Cette solution permet, de façon simple, d'obtenir un positionnement et un centrage précis, ainsi qu'une retenue performante entre les deux pièces, à l'endroit de leurs dites embouchures d'air, tout en autorisant vis-à- vis de l'axe d'engagement entre ces pièces les libres mouvements de translation axiale et de rotation recherchés, jusqu'à ce qu'on ait donc positionné et centré de manière appropriée ce même distributeur vis-à- vis de l'autre répartiteur d'air.This solution makes it possible, in a simple manner, to obtain accurate positioning and centering, as well as a high performance restraint between the two parts, at the location of their air mouths, while allowing for the axis of engagement between these parts the free movements of axial translation and rotation sought, until we have positioned and suitably centered the same distributor vis-à-vis the other air distributor.
Pour l'étanchéité entre le distributeur et chaque répartiteur concerné, on conseille en outre: - qu'un joint torique ou sensiblement torique soit interposé à l'endroit desdits premiers moyens complémentaires de positionnement à pivot glissant,For sealing between the distributor and each distributor concerned, it is furthermore recommended: - that an O-ring or substantially O-ring be interposed at the location of said first complementary sliding pivot positioning means,
- et qu'un joint plat soit interposé à l'endroit des seconds moyens complémentaires de positionnement et d'appui.and that a flat seal is interposed at the location of the second complementary means of positioning and support.
Concernant les moyens de locating, on conseille en outre qu'il comprennent au moins une vis traversant un trou de section non circulaire.Regarding locating means, it is furthermore advised that it comprise at least one screw passing through a hole of non-circular section.
Il s'agit là d'une solution simple et performante, compatible avec les techniques bien maîtrisées dans l'automobile, lors des fabrications en grande série des moteurs .This is a simple and powerful solution, compatible with the techniques well mastered in the automobile, during mass production of engines.
En ce qui concerne les troisièmes moyens complémentaires de fixation précités, on conseille qu'ils comprennent des vis traversant des trous oblongs ménagés sur le distributeur d'air concerné, dans l'environnement immédiat de l'embouchure correspondante.As regards the third complementary fastening means mentioned above, it is advisable that they comprise screws passing through oblong holes formed on the air distributor concerned, in the immediate environment of the corresponding mouthpiece.
Toujours pour favoriser l'assemblage isostatique, dans des conditions performantes tant en termes mécanique, que de coût et d'ergonomie, on prévoit par ailleurs, favorablement :Always to promote the isostatic assembly, under conditions of performance in terms of mechanics, cost and ergonomics, it is also expected, favorably:
- que les premiers moyens complémentaires de positionnement à pivot glissant présente un alésage ayant une section adaptée pour assurer ledit centrage relatif précis suivant l'axe d'engagement entre le distributeur et le répartiteur d'air concerné, - et que les moyens additionnels d' appui comprennent deux surfaces d' appui formées respectivement sur le distributeur et sur l'autre répartiteur, pour assurer entre eux un appui plan, sensiblement perpendiculairement à l'axe d'engagement suivant lequel s'étend l'alésage précité.- The first complementary sliding pivot positioning means has a bore having a section adapted to provide said accurate relative centering along the axis of engagement between the distributor and the air distributor concerned, - and that the additional support means comprise two bearing surfaces respectively formed on the distributor and the other distributor, to provide a flat support between them, substantially perpendicular to the engagement axis along which extends 1 aforesaid bore.
Et pour les mêmes buts, on conseille également que les troisièmes moyens complémentaires de fixation comprennent trois vis : - l'une (au moins) de ces vis assurant l'arrêt en rotation et définissant ainsi lesdits moyens de locating, en coopération avec un trou non circulaire formé sur l'un au moins parmi le distributeur et le répartiteur considéré, - ces vis assurant en outre, ensemble, une fixation serrée entre le distributeur et le répartiteur correspondant, en bloquant également ce distributeur par rapport à l'autre répartiteur.And for the same purposes, it is also recommended that the third complementary fixing means comprise three screws: one (at least) of these screws ensuring the stop in rotation and thus defining said locating means, in cooperation with a hole; non-circular formed on at least one of the distributor and the dispatcher considered, - these screws further ensuring, together, a tight attachment between the distributor and the corresponding distributor, also blocking the distributor relative to the other distributor.
Une description encore plus détaillée de l'invention, va maintenant être fournie en référence aux dessins joints donnés à titre d'exemple non limitatif et dans lesquels :An even more detailed description of the invention will now be given with reference to the accompanying drawings given by way of non-limiting example and in which:
- la figure 1 est une vue schématique en perspective et en éclaté d'une partie d'un moteur conforme à l'invention,FIG. 1 is a schematic perspective and exploded view of a portion of an engine according to the invention,
- la figure 2 montre assemblées les trois pièces constituées par le distributeur amont d'entrée d'air et les deux répartiteurs, la tubulure de transfert d'air apparaissant en traits fantômes en haut de la figure, laquelle correspond à une perspective inverse de celle de la figure 1, - la figure 3 est une vue de face, dans le sens de la flèche III de la figure 1, du seul distributeur amont d'air d'entrée,FIG. 2 shows the three parts constituted by the upstream distributor of the air intake and the two distributors together, the air transfer manifold appearing in phantom lines at the top of the figure, which corresponds to a perspective opposite to that of FIG. of Figure 1, FIG. 3 is a front view, in the direction of the arrow III of FIG. 1, of the only upstream inlet air distributor;
- et la figure 4 est une vue partielle, en coupe selon la ligne IV-IV de la figure 3, les liaisons entre le distributeur considéré et chaque répartiteur étant représentées séparément, indépendamment l'une de l'autre.- and Figure 4 is a partial view in section along the line IV-IV of Figure 3, the connections between the distributor considered and each distributor being shown separately, independently of one another.
Figure 1, on voit deux répartiteurs d'air 1, 3 conçus, de manière connue en soi, pour répartir l'air d'admission vers les deux séries d'embouchures d'entrée d'air (repères 5a, 5b, 5c pour l'une d'entre elles) d'une culasse 9 de moteur multicylindres 11 recouvrant un carter de cylindres du moteur.FIG. 1 shows two air distributors 1, 3 designed, in a manner known per se, for distributing the intake air to the two sets of air intake mouths (marks 5a, 5b, 5c for one of them) of a cylinder head 9 of multicylinder engine 11 covering a crankcase of the engine.
Il s'agit ici d'un moteur en V à six cylindres en lignes, avec donc deux séries de trois groupes d'embouchures d'entrée d'air.This is a six-cylinder V-line engine, with two sets of three groups of air inlet mouthpieces.
On a schématisé en 13a, 13b, 13c, trois des cylindres correspondant à l'une des lignes.Three of the cylinders corresponding to one of the lines have been schematized at 13a, 13b, 13c.
Chaque répartiteur d'air 1, 3 comprend au moins une embouchure d'admission d'air et plusieurs embouchures, ou groupes d'embouchures, de distribution ou de sortie d' air vers ladite embouchure d' air correspondante de la culasse 9.Each air distributor 1, 3 comprises at least one air intake mouth and several mouths, or groups of mouths, distribution or air outlet to said corresponding air mouth of the cylinder head 9.
Figure 1, on a repéré la, Ib, Ic, les trois groupes d'embouchures de sortie d'air du répartiteur d'air 1 vers la culasse.Figure 1, we have identified the, Ib, Ic, the three groups of air outlet mouths of the air distributor 1 to the cylinder head.
Ces trois groupes, avec à chaque fois ici deux orifices, sont répartis parallèlement à l'axe 10 d'allongement de ce répartiteur d'air 1, qui est également l'axe d'allongement du conduit interne réservé à la circulation de l'air dans ce répartiteur. II est en de même pour l'autre répartiteur 3 (axe 30) .These three groups, with in each case here two orifices, are distributed parallel to the axis 10 of elongation of this air distributor 1, which is also the axis of elongation of the internal conduit reserved for the circulation of the air in this splitter. It is the same for the other distributor 3 (axis 30).
En Id et 3d, on voit figure 1 les deux embouchures d'entrée d'air dans les répartiteurs, avec une pour chaque répartiteur d'air 1, 3.In Id and 3d, we see figure 1 the two air intake mouths in the splitters, with one for each air distributor 1, 3.
Ces embouchures présentent des surfaces terminales, telles que 15 pour l'embouchure Id, qui sert d'appui, et 17 pour l'embouchure 3d, qui présente suivant l'axe d'engagement 30 un jeu e_ avec la surface 25 en regard (voir figure 4) .These mouths have end surfaces, such as 15 for the mouthpiece Id, which serves as a support, and 17 for the mouthpiece 3d, which has, along the axis of engagement 30, a clearance e_ with the facing surface 25 ( see Figure 4).
Côté distributeur d'air, repérées 19 sur les figures 1, 3 et 4, on trouve trois embouchures d'air, dès lors qu'il s'agit ici d'un distributeur d'admission d' air . Figure 1, 21a repère la zone d'entrée d'air dans le distributeur 19 (voir également figure 3) . L'air est ainsi admis sensiblement parallèlement aux axes 10 et 30.Air distributor side, marked 19 in Figures 1, 3 and 4, there are three air openings, since it is here an air intake distributor. Figure 1, 21a identifies the air inlet zone in the distributor 19 (see also Figure 3). The air is thus admitted substantially parallel to the axes 10 and 30.
En 21b et 21c on voit les deux embouchures de sortie d'air du distributeur 19, là encore suivant sensiblement les directions 10 et 30, respectivement.In 21b and 21c we see the two air outlet mouths of the distributor 19, again following substantially the directions 10 and 30, respectively.
Ainsi, les conduits internes définissant un Y sont chacun coudés en U.Thus, the internal ducts defining a Y are each bent in U.
Sur les deux répartiteurs, en ce qui concerne la surface d'appui 15 et la surface 17, sans contact axial avec son homologue 25 (léger espace e_ pour le répartiteurOn the two distributors, with regard to the bearing surface 15 and the surface 17, without axial contact with its counterpart 25 (slight space e_ for the distributor
3) , elles sont parallèles respectivement à la surface d'appui 23 et à la surface 25 des embouchures de sortie correspondantes 21b, 21c du distributeur considéré, comme illustré figure 4 où l'on note qu'il y a donc toujours un très léger jeu entre les surfaces 17 et 25.3), they are respectively parallel to the bearing surface 23 and to the surface 25 of the corresponding outlet mouths 21b, 21c of the distributor considered, as illustrated in FIG. 4 where it is noted that there is therefore always a very slight clearance between surfaces 17 and 25.
En pratique, ces surfaces 17 et 25 seront donc, axialement, à proximité immédiate, l'une en face de l'autre, lorsque les pièces 1, 3 et 19 seront fixées entre elles, après avoir été correctement positionnées et centrées, conformément à l'invention.In practice, these surfaces 17 and 25 will therefore, axially, in the immediate vicinity, one in front of the other, when the parts 1, 3 and 19 will be fixed together, after being correctly positioned and centered, according to the invention.
De préférence, lesdites surfaces seront des plans. Dans l'exemple favorable illustré, ces plans sont perpendiculaires à l'axe 10 ou 30 considérés, l'axe 30 constituant l'axe d'engagement le long duquel on va approcher, et ici engager, l'embouchure de sortie du distributeur 19 sur l'embouchure 3d, en pivot glissant. Ainsi, lesdites surfaces ou plans d'appui vont coopérer deux à deux pour relier et positionner correctement le distributeur d'air 19 vis-à-vis de chacun des deux répartiteurs 1, 3, avec les embouchures et les surfaces concernées en appui ou face à face. Pour positionner, centrer et fixer de façon performante et isostatique le distributeur d'air 19 par rapport aux deux répartiteurs, ces surfaces coopérantes sont complétées:Preferably, said surfaces will be planes. In the favorable example illustrated, these planes are perpendicular to the axis 10 or 30 considered, the axis 30 constituting the axis of engagement along which we will approach, and here engage, the outlet mouth of the distributor 19 on the mouthpiece 3d, sliding pivot. Thus, said surfaces or support planes will cooperate in pairs to correctly connect and position the air distributor 19 vis-à-vis each of the two distributors 1, 3, with the mouths and surfaces concerned in support or face to face. To position, center and fix in a powerful and isostatic manner the air distributor 19 with respect to the two distributors, these co-operating surfaces are completed:
- entre le distributeur d'air et le répartiteur 3, par un emmanchement 27 ne laissant qu'une situation de pivot glissant entre ces deux pièces, ceci consécutivement à un interengagement entre ces pièces suivant l'axe d'engagement 30,between the air distributor and the distributor 3, by a fitting 27 leaving only a sliding pivot situation between these two parts, this following an interengagement between these parts along the engagement axis 30,
- entre ledit distributeur 19 et l'autre répartiteur d'air, 1, par un moyen additionnel d'appui 29 complété par des moyens de locating 31, ceci une fois atteint l'angle de pivotement relatif nécessaire pour assurer le positionnement requis entre le distributeur 19 et les répartiteurs d'air 1, 3, ainsi que des moyens de fixation 33, l'emmanchement 27, et la position donc axiale entre les surfaces 17 et 25 demeurant établie, par ailleurs . Concernant les surfaces en appui entre le distributeur 19 et le répartiteur 3, s'il n'y a donc pas d'appui axial entre les surfaces 17 et 25, cet appui existe latéralement, à l'endroit des surfaces latérales adjacentes correspondantes, respectivement 17a et 25abetween said distributor 19 and the other air distributor, 1, by additional support means 29 supplemented by locating means 31, this once reaching the relative pivot angle necessary to ensure the required positioning between the distributor 19 and the air distributors 1, 3, and fastening means 33, the fitting 27, and the axial position between the surfaces 17 and 25 remaining established, moreover. As regards the bearing surfaces between the distributor 19 and the distributor 3, if there is therefore no axial support between the surfaces 17 and 25, this support exists laterally at the respective adjacent lateral surfaces, respectively 17a and 25a
(voir figure 4), là où est mis en place le joint d'étanchéité 35, ici un joint torique ou sensiblement torique (compte tenu ici de la possible forme ovalisée des embouchures concernées) . L'emmanchement 27 est favorablement réalisé, comme illustré figures 1, 3 et 4, par une jupe 37 formée autour de l'embouchure 21c, ceci sur toute la périphérie du rebord d'extrémité correspondant.(see Figure 4), where is set up the seal 35, here an O-ring or substantially O-ring (given here the possible oval shape of the mouths concerned). The fitting 27 is favorably made, as illustrated in FIGS. 1, 3 and 4, by a skirt 37 formed around the mouth 21c, this over the entire periphery of the corresponding end edge.
Lorsque l'on approche le distributeur 19 du répartiteur 3, suivant l'axe d'engagement 30, cette jupe 37 vient couvrir étroitement et extérieurement l'extrémité de l'embouchure 3d du répartiteur, jusqu'à ce qu'on place donc axialement le plus près possible les surfaces d'extrémité 17, 25, comme expliqué ci-avant, le joint 35 étant alors comprimé radialement .When the distributor 19 of the distributor 3 is approached, along the engagement axis 30, this skirt 37 covers the end of the mouthpiece 3d of the distributor tightly and externally, until it is therefore placed axially as close as possible to the end surfaces 17, 25, as explained above, the seal 35 then being compressed radially.
Cette opération de positionnement et de centrage desdites pièces suivant l'axe 30 étant réalisée, avec les libertés de rotation autour de cet axe et de translation suivant ce même axe qui demeurent pour le distributeur 19, on peut alors assurer le centrage et la fixation, vis-à-vis de l'autre répartiteur 1.This positioning and centering operation of said parts along the axis 30 being performed, with the freedom of rotation around this axis and translation along the same axis that remain for the distributor 19, it can then ensure the centering and fixing, vis-à-vis the other distributor 1.
Pour cela, on a utilisé trois vis 39a, 39b, 39c pouvant traverser pour certaines au moins avec jeu (dans leur état non serré) deux séries de trois trous, tels que 41a et 43a pour la vis 39a qui va servir à assurer l'effet de locating recherché, en liaison avec l'orifice correspondant 41a et son vis-à-vis 43a, lesdits trous étant ménagés à travers le rebord d'un côté de l'embouchure Id, et de l'autre de l'embouchure 21b, et donc à travers les surfaces précitées 15 et 23 transversales à l'axe 10 commun à ces deux embouchures. Ici, les filets des vis 39a, 39b, 39c engagent des taraudages formés dans les trois trous (tels que 43a) du rebord 15 du répartiteur 1.For this, three screws 39a, 39b, 39c have been used which can pass for at least some with clearance (in their unsealed state) two sets of three holes, such as 41a and 43a for the screw 39a which will serve to ensure the locating effect sought, in connection with the corresponding orifice 41a and its vis-à-vis 43a, said holes being formed through the rim of one side of the mouth Id, and the other of the mouth 21b, and thus through the aforementioned surfaces 15 and 23 transverse to the axis 10 common to these two mouths. Here, the threads of the screws 39a, 39b, 39c engage threads formed in the three holes (such as 43a) of the flange 15 of the distributor 1.
Le déplacement en 29 est stoppé à l'endroit de la surface d'appui 15, par l'engagement des vis dans leurs trous, tels que le trou 41a, ici ménagés dans le rebord extérieur 45 du distributeur d'air.The displacement 29 is stopped at the location of the bearing surface 15, by the engagement of the screws in their holes, such as the hole 41a, here formed in the outer rim 45 of the air distributor.
Ainsi, alors que l'alésage 370 à l'endroit de la jupe 37 des moyens complémentaires de positionnement (17, 17a, 25a, 37) participe avec l'extrémité en regard du répartiteur 3 au centrage relatif précis suivant l'axe d'engagement 30 entre le distributeur et ce répartiteur d'air, les libertés de mouvement autorisées par le pivot glissant vont être arrêtées à l'endroit d'un appui plan sensiblement perpendiculaire à l'axe 30 d'engagement de l'alésage, précisément entre les deux surfaces d'appui 15, 23 formées respectivement sur le distributeur et le répartiteur 1 et par les vis 33 , avec le locating 31.Thus, while the bore 370 at the location of the skirt 37 complementary positioning means (17, 17a, 25a, 37) participates with the opposite end of the distributor 3 at the precise relative centering along the axis of engagement 30 between the distributor and the air distributor, the freedom of movement authorized by the sliding pivot will be stopped at the location of a plane support substantially perpendicular to the axis 30 of engagement of the bore, precisely between the two bearing surfaces 15, 23 formed respectively on the distributor and the distributor 1 and by the screws 33, with the locating element 31.
Pour assurer l'arrêt en rotation du distributeur d'air 19 par rapport au répartiteur 1, on a en effet réalisé avec précision le trou oblong (ou de toute forme appropriée) 41a qui reçoit le moyen de locating concerné.To ensure the rotational stop of the air distributor 19 relative to the distributor 1, it has in fact accurately realized the oblong hole (or any suitable form) 41a which receives the locating means concerned.
De cette manière on peut bloquer le pivotement autour de l'axe 30, dans la position angulaire recherchée, le long du plan d'appui crée entre les surfaces 15 et 23 entre lesquelles le joint plat 47 a été favorablement interposé, avant mise en place des vis (ce joint étant traversé par des orifices adaptés, tels que 49, pour le passage desdites vis) .In this way it is possible to block the pivoting around the axis 30, in the desired angular position, along the bearing plane created between the surfaces 15 and 23 between which the flat gasket 47 has been favorably interposed, before being put in place. screws (this seal being traversed by suitable orifices, such as 49, for the passage of said screws).
Si la vis 39a sert aussi au locating, les trois vis formant ici le moyen de fixation 33 peuvent ensuite être serrées sur le répartiteur 1, à travers leurs orifices correspondants, pour assurer la fixation serrée recherchée .If the screw 39a also serves for locating, the three screws forming here the fastening means 33 can then be clamped on the distributor 1, through their corresponding holes, to ensure the desired tight attachment.
L'effet de centrage/blocage en rotation sans jeu précité par le moyen de locating retenu pourrait, en alternative, être réalisé par exemple par un bout d'arbre ou un goujon rapporté.The effect of centering / locking in rotation without said game by the locating means retained could, alternatively, be achieved for example by a shaft end or a stud reported.
Par ailleurs, on aura noté sur la figure 1 que les têtes de vis sont situées du côté du distributeur d' air 19 et viennent donc se fixer dans le répartiteur d'air 1. Ce pourrait être l'inverse (fixation sur le distributeur) .Furthermore, it will be noted in Figure 1 that the screw heads are located on the side of the air distributor 19 and are therefore fixed in the air distributor 1. It could be the opposite (fixing on the distributor) .
A l'extrémité longitudinale située à l'opposé du distributeur d'air 19 (suivant leurs axes respectifs 10, 30), les deux répartiteurs d'air 1, 3 pourront aussi être reliés entre eux par le même système d'assemblage isostatique agissant sans déformation des pièces, dès lors qu'à cette extrémité on aura prévu, comme illustré figure 2, de relier leurs embouchures correspondantes 50, 51, par l'intermédiaire d'une tubulure de transfert d'air 53.At the longitudinal end located opposite the air distributor 19 (along their respective axes 10, 30), the two air distributors 1, 3 can also be interconnected by the same isostatic assembly system acting without deformation of the parts, since at this end it will be provided, as illustrated in Figure 2, to connect their corresponding mouths 50, 51, via an air transfer pipe 53.
Les moyens de positionnement, centrage et fixation, qui peuvent être identiques à ceux présentés, n'ont pas été illustrés ; mais on peut aisément les imaginer, identiques à ceux précités. Cette tubulure de transfert d'air 53 portera donc de préférence les mêmes moyens 27, 31, 33 de positionnement et de centrage (pivot glissant, surface d'appui, locating, ) et de fixation que le distributeur 19.The positioning, centering and fixing means, which may be identical to those presented, have not been illustrated; but we can easily imagine them, identical to those mentioned above. This air transfer pipe 53 will therefore preferably bear the same means 27, 31, 33 for positioning and centering (sliding pivot, surface support, locating,) and fastening as the distributor 19.
L'axe d'engagement (précédemment 30) entre la tubulure de transfert d'air 53 et le répartiteur d'air 3 a été repéré 60.The axis of engagement (previously 30) between the air transfer tube 53 and the air distributor 3 has been identified 60.
La différence entre le distributeur 19 et la tubulure de transfert d'air 53 concerne ici leur réalisation interne. Le distributeur 19 comprend ici trois conduits principaux d'air : l'un pour l'admission (sur lequel débouche son ouverture d'admission d'air 21a) les deux autres amenant l'air vers les embouchures de sortie respectives 21b et 21c, ces trois conduits communiquant bien entendu entre eux à l'intérieur du distributeur . La tubulure de transfert d'air 53 ne renferme qu'un seul conduit, avec une ouverture, respectivement 55 et 57, à chaque bout, pour laisser donc de l'air circuler entre les deux répartiteurs d'air 1 et 3, à l'opposé du distributeur d'entrée 19. Figure 2, en 59, où a figuré une entrée d'air de recyclage (EGR) pouvant arriver transversalement dans le distributeur d'admission d'air 19. The difference between the distributor 19 and the air transfer manifold 53 here relates to their internal construction. The distributor 19 here comprises three main air ducts: one for admission (on which opens its air intake opening 21a) the other two bringing air to the respective outlet mouths 21b and 21c, these three conduits of course communicating with each other inside the dispenser. The air transfer tube 53 contains only one duct, with an opening, respectively 55 and 57, at each end, to let air circulate between the two air distributors 1 and 3, respectively. opposite of the inlet distributor 19. Figure 2, at 59, which has been a recirculation air inlet (EGR) can arrive transversely in the air intake manifold 19.

Claims

REVENDICATIONS
1. Dispositif d'alimentation en air d'une culasse1. Air supply device for a cylinder head
(9) de moteur multicylindres comprenant deux rangées de conduits d'entrée d'air vers les cylindres, ces conduits présentant des embouchures d'entrée (5a, 5b, 5c), ledit dispositif d' alimentation en air comprenant :Multi-cylinder engine (9) comprising two rows of air inlet ducts to the cylinders, said ducts having inlet mouths (5a, 5b, 5c), said air supply device comprising:
- un premier et un second répartiteurs d'air (1, 3) , disposés ou à disposer et à fixer sur la culasse, le long des embouchures d'entrée desdits conduits d'entrée d'air, chaque répartiteur comprenant à une première extrémité une embouchure d'air (Id, 3d, 19, 51)a first and a second air distributor (1, 3) arranged or arranged and fixed on the cylinder head along the inlet mouths of said air inlet ducts, each distributor comprising at a first end an air mouth (Id, 3d, 19, 51)
- un distributeur d'air (19) comprenant au moins deux embouchures d'air (21b, 21c) disposées ou à disposer en face de l'embouchure d'air des répartiteurs, respectivement, le distributeur d'air et les répartiteurs d'air comprenant, dans l'environnement immédiat de leurs dites embouchures, pour assurer un positionnement relatif requis et une fixation entre eux : entre le distributeur d'air (19) et l'un des répartiteurs d'air (3), des premiers moyens (17, 27, 37) complémentaires de positionnement à pivot glissant suivant un axe (30) d'engagement entre ce distributeur d'air et le répartiteur, avec un centrage relatif précis, sensiblement sans jeu, suivant cet axe, un possible pivotement autour dudit axe (30) et une translation suivant ce même axe, et, entre ledit distributeur d'air et l'autre répartiteur d'air (1): * des seconds moyens (29, 31, 33) complémentaires de positionnement et d' appui comprenant :- an air distributor (19) comprising at least two air mouths (21b, 21c) arranged or arranged in front of the air mouth of the distributors, respectively, the air distributor and the distributors of air air comprising, in the immediate environment of their said mouths, to ensure a required relative positioning and fixing between them: between the air distributor (19) and one of the air distributors (3), first means (17, 27, 37) complementary positioning pivot sliding along an axis (30) of engagement between the air distributor and the distributor, with a precise relative centering, substantially without play, along this axis, a possible pivoting around said axis (30) and a translation along the same axis, and, between said air distributor and the other air distributor (1): * second means (29, 31, 33) complementary positioning and support including:
- des moyens (29) additionnels d'appui, - et des moyens de locating (31) pour un arrêt du pivotement autour dudit axe d'engagement (30), une fois atteint l'angle de pivotement relatif nécessaire pour assurer ledit positionnement requis entre le distributeur et les répartiteurs d'air,additional means (29) of support, and locating means (31) for stopping pivoting about said engagement axis (30), once reached the relative pivoting angle necessary to ensure said required positioning between the distributor and the air distributors,
* et des troisièmes moyens (33) complémentaires de fixation, pour bloquer, audit angle de pivotement nécessaire et en appui relatif, le distributeur d'air (19) et le répartiteur (1, 3) correspondant. * and third complementary fixing means (33) for locking, to said necessary pivot angle and relative support, the air distributor (19) and the distributor (1, 3) corresponding.
2. Dispositif d' alimentation en air selon la revendication 1, caractérisé en ce que le distributeur d'air (1) comprend plusieurs conduits internes avec trois embouchures d'air (21a, 21b, 21c), l'une recevant de l'air extérieur pour l'alimentation en air des répartiteurs d'air, les deux autres étant donc à disposer en face de l'embouchure d'air correspondante (Id, 3d) des répartiteurs (1, 3) .An air supply device according to claim 1, characterized in that the air distributor (1) comprises a plurality of internal ducts with three air mouths (21a, 21b, 21c), one receiving from the external air for the air supply of the air distributors, the other two being to dispose in front of the corresponding air mouth (Id, 3d) of the distributors (1, 3).
3. Dispositif d'alimentation en air selon la revendication 1, caractérisé en ce que : - chaque répartiteur comprend, à une deuxième extrémité, une deuxième embouchure d'air (49, 51) pour une circulation d'air entre les répartiteurs (1, 3),3. An air supply device according to claim 1, characterized in that: - each distributor comprises, at a second end, a second air mouth (49, 51) for air circulation between the distributors (1 , 3),
- une tubulure de transfert d'air (53) est prévue à cette deuxième extrémité, avec deux embouchures d'air disposé ou à disposer respectivement contre chaque répartiteur, en face desdites deuxièmes embouchures d'air de ceux-ci, pour une circulation d'air entre ces répartiteurs, à travers cette tubulure de transfert d' air . - An air transfer pipe (53) is provided at this second end, with two air mouths arranged or arranged respectively against each distributor, opposite said second air mouths thereof for a circulation of air between these splitters, through this air transfer manifold.
4. Dispositif d' alimentation en air selon la revendication 3, caractérisé en ce que la tubulure de transfert d'air (53) et les répartiteurs d'air (1, 3) comprennent, dans l'environnement immédiat de leurs dites embouchures, pour assurer un positionnement relatif requis et une fixation entre eux : entre la tubulure de transfert d'air (53) et l'un des répartiteurs d'air (1), des quatrièmes moyens (17,Air supply device according to Claim 3, characterized in that the air transfer tube (53) and the air distributors (1, 3) comprise, in the immediate environment of their said mouths, to ensure a relative positioning required and a fixation between them: between the air transfer tube (53) and one of the air distributors (1), fourths means (17,
27, 37) complémentaires de positionnement à pivot glissant suivant un axe (60) d'engagement entre cette tubulure de transfert d'air et le répartiteur, avec un centrage relatif précis, sensiblement sans jeu, suivant cet axe, un possible pivotement autour dudit axe (60) et une translation suivant ce même axe, et, entre ladite tubulure de transfert d'air (53) et l'autre répartiteur d'air (1) :27, 37) complementary positioning pivot sliding along an axis (60) of engagement between the air transfer tube and the distributor, with a precise relative centering, substantially without play, along this axis, a possible pivoting around said axis (60) and a translation along the same axis, and, between said air transfer tube (53) and the other air distributor (1):
* des cinquièmes moyens (29, 31, 33) complémentaires de positionnement et d' appui comprenant :fifth means (29, 31, 33) complementary positioning and support comprising:
- des moyens (29) additionnels d'appui, - et des moyens de locating (31) pour un arrêt du pivotement autour dudit axe d'engagement (30), une fois atteint l'angle de pivotement relatif nécessaire pour assurer ledit positionnement requis entre le distributeur et les répartiteurs d'air,- additional support means (29), - and locating means (31) for stopping pivoting about said engagement axis (30), once reached the relative pivot angle necessary to ensure said positioning required between the distributor and the air distributors,
* et des sixièmes moyens (33) complémentaires de fixation, pour bloquer, audit angle de pivotement nécessaire et en appui relatif, le distributeur d'air (19) et le répartiteur (1, 3) correspondant.* and sixth complementary fixing means (33), for locking, to said necessary pivot angle and relative support, the air distributor (19) and the distributor (1, 3) corresponding.
5. Dispositif d'alimentation en air selon l'une quelconque des revendications précédentes, caractérisé en ce que les premiers moyens complémentaires de positionnement à pivot glissant comprennent une jupe annulaire (37) en saillie autour de l'embouchure correspondante (21c) du distributeur d'air (19), cette jupe recouvrant étroitement un bord extérieur (17) de l'embouchure correspondante du répartiteur concerné, pour assurer un emboîtement sensiblement sans jeu radial suivant ledit axe d'engagement (30).5. An air supply device according to any one of the preceding claims, characterized in that the first complementary sliding pivot positioning means comprise an annular skirt (37) projecting around the corresponding mouth (21c) of the distributor. (19), this skirt tightly covering an outer edge (17) of the corresponding mouth of the concerned distributor, to ensure a substantially no radial play interlocking along said engagement axis (30).
6. Dispositif d'alimentation en air selon l'une quelconque des revendications précédentes, caractérisé en ce que :Air supply device according to one of the preceding claims, characterized in that:
- un joint (35) torique ou sensiblement torique est interposé à l'endroit desdits premiers moyens complémentaires de positionnement à pivot glissant, - et un joint plat (47) est interposé à l'endroit des seconds moyens complémentaires de positionnement et d' appui .- An O-ring (35) or substantially O-ring is interposed at the location of said first complementary sliding pivot positioning means, and a flat seal (47) is interposed at the location of the second complementary positioning and support means. .
7. Dispositif d'alimentation en air selon l'une quelconque des revendications précédentes, caractérisé en ce que les moyens de locating comprennent au moins une vis (39a) traversant un trou (41a) de section non circulaire .7. An air supply device according to any one of the preceding claims, characterized in that the locating means comprise at least one screw (39a) passing through a hole (41a) of non-circular section.
8. Dispositif d'alimentation en air selon l'une quelconque des revendications précédentes, caractérisé en ce que les troisièmes moyens complémentaires de fixation comprennent des vis (39a, 39b, 39c) traversant des trous (41a, 41b, 41c) ménagés sur le distributeur d'air, dans l'environnement immédiat de l'embouchure correspondante.8. An air supply device according to any one of the preceding claims, characterized in that the third complementary fastening means comprise screws (39a, 39b, 39c) passing through holes (41a, 41b, 41c) formed on the air distributor, in the immediate environment of the corresponding mouth.
9. Dispositif d'alimentation en air selon l'une quelconque des revendications précédentes, caractérisé en ce que :9. Air supply device according to any one of the preceding claims, characterized in that:
- les premiers moyens (17, 27, 37) complémentaires de positionnement à pivot glissant comprennent un alésagethe first complementary sliding pivot positioning means (17, 27, 37) comprise a bore
(370) assurant ledit centrage relatif précis suivant l'axe d'engagement (30) entre le distributeur et le répartiteur d'air concerné, - et les moyens additionnels d'appui (29) comprennent deux surfaces d' appui formées respectivement sur le distributeur et sur l'autre répartiteur, pour assurer entre eux un appui plan, sensiblement perpendiculairement à l'axe d'engagement (30) de 1' alésage .(370) providing said precise relative centering along the axis of engagement (30) between the distributor and the air distributor concerned, - And the additional support means (29) comprise two bearing surfaces respectively formed on the distributor and the other distributor, to provide a flat support between them, substantially perpendicular to the axis of engagement (30). 1 'bore.
10. Dispositif d'alimentation en air selon l'une quelconque des revendications précédentes, caractérisé en ce que les troisièmes moyens complémentaires de fixation comprennent trois vis (31,33):10. An air supply device according to any one of the preceding claims, characterized in that the third complementary fixing means comprise three screws (31,33):
- l'une (31) de ces vis assurant l'arrêt en rotation et définissant ainsi lesdits moyens de locating, en coopération avec un trou non circulaire formé sur l'un au moins parmi le distributeur et le répartiteur considéré,one (31) of these screws ensuring the stop in rotation and thus defining said locating means, in cooperation with a non-circular hole formed on at least one of the distributor and the distributor considered,
- ces vis (31,33) assurant ensemble une fixation serrée entre le distributeur et le répartiteur correspondant, en bloquant également ce distributeur par rapport à l'autre répartiteur. - These screws (31,33) together ensuring a tight attachment between the distributor and the corresponding distributor, also blocking the distributor relative to the other distributor.
EP06831263A 2005-10-07 2006-10-02 Device for supplying air to a multiple-cylinder engine head Not-in-force EP1934461B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0510292A FR2891874B1 (en) 2005-10-07 2005-10-07 DEVICE FOR SUPPLYING AIR FROM A MULTI-CYLINDER MOTOR CYLINDER HEAD
PCT/FR2006/050977 WO2007042706A1 (en) 2005-10-07 2006-10-02 Device for supplying air to a multiple-cylinder engine head

Publications (2)

Publication Number Publication Date
EP1934461A1 true EP1934461A1 (en) 2008-06-25
EP1934461B1 EP1934461B1 (en) 2010-08-11

Family

ID=36645611

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06831263A Not-in-force EP1934461B1 (en) 2005-10-07 2006-10-02 Device for supplying air to a multiple-cylinder engine head

Country Status (9)

Country Link
US (1) US8006664B2 (en)
EP (1) EP1934461B1 (en)
JP (1) JP2009511800A (en)
KR (1) KR20080069986A (en)
CN (1) CN101305179B (en)
AT (1) ATE477414T1 (en)
DE (1) DE602006016142D1 (en)
FR (1) FR2891874B1 (en)
WO (1) WO2007042706A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101915190A (en) * 2010-09-10 2010-12-15 力帆实业(集团)股份有限公司 Intake pipe of V-shaped double-cylinder engine
CN105089881B (en) * 2015-09-11 2018-02-16 力帆实业(集团)股份有限公司 Air inlet pipe for the V-type double-cylinder engine of motorcycle
FR3078558B1 (en) 2018-03-05 2021-01-29 Sogefi Air & Cooling ASSEMBLY AND FIXING DEVICE FOR A PAIR OF ORIFICES
CN111520263B (en) * 2020-05-18 2021-06-08 浙江博弈科技股份有限公司 Combined intake manifold

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US3520284A (en) * 1967-06-03 1970-07-14 Porsche Kg Internal combustion engine air intake
US4372120A (en) * 1979-10-26 1983-02-08 General Motors Corporation V-Type engine intake with vibration isolated manifold connector
JPS6062654A (en) * 1983-09-14 1985-04-10 Mazda Motor Corp Intake device of v-type engine
JPS6270653A (en) * 1985-09-24 1987-04-01 Yamaha Motor Co Ltd Exhaust gas purifying device for v-type engine
US4901681A (en) * 1988-08-26 1990-02-20 General Motors Corporation Motion isolated engine manifold
JPH0278331A (en) * 1988-09-14 1990-03-19 Nec Corp Transmitter-receiver for mobile communication
JP2759461B2 (en) * 1988-10-12 1998-05-28 ヤマハ発動機株式会社 Engine intake system
US5010854A (en) * 1990-07-12 1991-04-30 Nissan Motor Co., Ltd. Intake apparatus for V-type 8-cyl internal combustion engine
US5168838A (en) * 1990-10-29 1992-12-08 Mazda Motor Corporation Engine induction system
JPH0842415A (en) * 1994-07-30 1996-02-13 Suzuki Motor Corp Intake device of v-engine

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Title
See references of WO2007042706A1 *

Also Published As

Publication number Publication date
US20090301422A1 (en) 2009-12-10
WO2007042706A1 (en) 2007-04-19
JP2009511800A (en) 2009-03-19
FR2891874B1 (en) 2008-01-25
ATE477414T1 (en) 2010-08-15
DE602006016142D1 (en) 2010-09-23
KR20080069986A (en) 2008-07-29
CN101305179A (en) 2008-11-12
EP1934461B1 (en) 2010-08-11
US8006664B2 (en) 2011-08-30
FR2891874A1 (en) 2007-04-13
CN101305179B (en) 2011-06-08

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