FR2883031A1 - Exhaust pipe and exhaust duct connecting device for motor vehicle, has flexible and deformable unit placed between pipe and mounting clip that is fixed on interface unit in which duct is opened, and gasket placed between clip and unit - Google Patents

Exhaust pipe and exhaust duct connecting device for motor vehicle, has flexible and deformable unit placed between pipe and mounting clip that is fixed on interface unit in which duct is opened, and gasket placed between clip and unit Download PDF

Info

Publication number
FR2883031A1
FR2883031A1 FR0550608A FR0550608A FR2883031A1 FR 2883031 A1 FR2883031 A1 FR 2883031A1 FR 0550608 A FR0550608 A FR 0550608A FR 0550608 A FR0550608 A FR 0550608A FR 2883031 A1 FR2883031 A1 FR 2883031A1
Authority
FR
France
Prior art keywords
exhaust
appropriate
tube
unit
pipe
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
FR0550608A
Other languages
French (fr)
Other versions
FR2883031B1 (en
Inventor
Eric Dumas
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
Priority to FR0550608A priority Critical patent/FR2883031B1/en
Publication of FR2883031A1 publication Critical patent/FR2883031A1/en
Application granted granted Critical
Publication of FR2883031B1 publication Critical patent/FR2883031B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • F01N13/1827—Sealings specially adapted for exhaust systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • F01N13/1844—Mechanical joints
    • F01N13/1855—Mechanical joints the connection being realised by using bolts, screws, rivets or the like

Abstract

The device has a flexible and deformable unit (5) inserted between an exhaust pipe (4) and a mounting clip (7) that is fixed on an interface unit (3) in which an end of an exhaust duct (1) is opened. A gasket (9) is placed between the clip and the unit (3). A part (51) of the unit (5) forms a loop (510) whose one end is connected to a part (52) of the unit (5) and another end forms a return (511) extending along the pipe.

Description

II

Bride tôle d'interface échappement La présente invention se rapporte au domaine des échappements de véhicules automobiles, et, plus particulièrement aux dispositifs de liaison entre un conduit de gaz d'échappement d'une culasse et un tube d'éohappernent d'un collecteur.  The present invention relates to the field of motor vehicle exhausts, and more particularly to the connecting devices between an exhaust gas duct of a cylinder head and an exhaust tube of a manifold.

Cette liaison est, généralement, obtenue au moyen d'une bride réalisée par des techniques de forge ou de fonderie. Toutefois, de telles brides présentent une rigidité Importante, ce qui a pour principale conséquence d'augmenter les contraintes au niveau de la jonction du tube d'échappement avec le conduit Il) d'échappement. II est donc important de pouvoir disposer d'un mode de liaison permettant d'intégrer les déformations dues aux dilatations thermiques des pièces.  This connection is generally obtained by means of a flange made by forging or foundry techniques. However, such flanges have a significant rigidity, which has the main effect of increasing the stresses at the junction of the exhaust tube with the conduit II) exhaust. It is therefore important to have a connection mode for integrating the deformations due to thermal expansion of the parts.

Différentes solutions ont été proposées pour atteindre ce but.  Different solutions have been proposed to achieve this goal.

Le document JP2D01263054 présente ainsi un mode de liaison d'un tube à une tête de cylindre d'un moteur â combustion interne, dans lequel l'extrémité dudit tube à raccorder, libre, est insérée entre, respectivement, un élément centreur placé l'intérieur de ladite extrémité dudit tube â raccorder, et un manchon extérieur placé autour de ladite extrémité dudit tube â raccorder. Le diamètre extérieur dudit élément centreur est ici It gieroment inférieur à celui de ladite extrémité dudit tube à raccorder, et la forme extérieure dudit élément centreur est complémentaire de la forme intérieure de ladite extrémité dudit tube à raccorder, ledit élément centreur étant équipé, à son extrémité opposée à l'extrémité insérée dans ledit tube à raccorder, d'une bride sensiblement plane de dimensions supérieures à celles de ladite extrémité dudit tube à raccorder. Les dimensions dudit manchon extérieur sont légèrement supérieures à celles de ladite extrémité dudit tube à raccorder, et la forme intérieure dudit manchon extérieur est complémentaire de la forme extérieure de ladite extrémité dudit tube à raccorder, Ledit manchon extérieur étant également équipé, à son extrémité opposée l'extrémité placée autour de ladite extrémité dudit tube à raccorder, d'une bride sensiblement plane de dimensions sensiblement supérieures à Mlles de ladite bride plane dudit élément centreur. Dans ce dispositif, les formes et dimensions dudit élément centreur st dudit manchon sont teks que. lors du montage, ladite bride dudit élément centreur est sensiblement prise en sandwich entre un joint placé au contact de ladite tête de cylindre, assurant l'étanchéité du montage, et ladite bride dudit manchon extérieur. Toutefois, si un tel montage permet des dilatations et déformations longitudinales dudit tube à raccorder, les possibilités de déformation radiale qu'il offre sont limitées, les jeux entre ladite extrémité dudit tube à raccorder et lesdits respectivement élément centreur et manchon extérieur étant nécessairement limités afin de ne pas interférer sur l'étanchéité. De plus, pour un tel montage, l'angle d'incidence dudit tube sur ladite tête de cylindre est nécessairement fixe, l'incidence étant généralement normale, ce qui limite également les possibilités de montage.  Document JP2D01263054 thus presents a method of connecting a tube to a cylinder head of an internal combustion engine, in which the end of said tube to be connected, free, is inserted between, respectively, a centering element placed therein inside said end of said tube to be connected, and an outer sleeve placed around said end of said tube to be connected. The outer diameter of said centering element is here smaller than that of said end of said tube to be connected, and the outer shape of said centering element is complementary to the inner shape of said end of said tube to be connected, said centering element being equipped with its end opposite the end inserted in said tube to be connected, a substantially flat flange of dimensions greater than those of said end of said tube to be connected. The dimensions of said outer sleeve are slightly greater than those of said end of said tube to be connected, and the inner shape of said outer sleeve is complementary to the outer shape of said end of said tube to be connected, said outer sleeve being also equipped, at its opposite end. the end placed around said end of said tube to be connected, a substantially flat flange of dimensions substantially greater than Mlles said flat flange of said centering element. In this device, the shapes and dimensions of said centering element st of said sleeve are teks that. during assembly, said flange of said centering element is substantially sandwiched between a seal placed in contact with said cylinder head, sealing the mounting, and said flange of said outer sleeve. However, if such an assembly allows longitudinal expansion and deformation of said tube to be connected, the possibilities of radial deformation it offers are limited, the clearances between said end of said tube to be connected and said respectively centering element and outer sleeve necessarily being limited so that not to interfere with the seal. In addition, for such an assembly, the angle of incidence of said tube on said cylinder head is necessarily fixed, the incidence is generally normal, which also limits the mounting possibilities.

Une variante de ce type de montage est présentée par le document JP7259551, dans lequel ledit élément centreur assure également la fonction de joint d'étanchéité : là encore, toutefois, la liaison est réalisée au moyen d'éléments rigides, et l'angle d'incidence du tube au moment du raccordement du tube est fixe, et l'incidence est normale.  A variant of this type of assembly is presented in document JP7259551, in which said centering element also performs the function of a seal: again, however, the connection is made by means of rigid elements, and the angle of The incidence of the tube at the time of connection of the tube is fixed, and the incidence is normal.

Le document US6086110 présente un dispositif de raccordement de deux tubes entre eux. Dans ce dispositif, une liaison est réalisée entre deux tubes, dont une extrémité de l'un pénètre sensiblement à l'intérieur d'une extrémité de l'autre, un flexible manchonnant les deux extrémités desdits tubes. Un ensemble de bagues souples, respectivement placées entre les deux tubes et entre ledit tube intérieur et ledit flexible, permet d'assurer l'étanchéité de l'ensemble.  US6086110 discloses a device for connecting two tubes to each other. In this device, a connection is made between two tubes, one end of one of which penetrates substantially inside one end of the other, a hose that connects the two ends of said tubes. A set of flexible rings, respectively placed between the two tubes and between said inner tube and said hose, makes it possible to seal the assembly.

Toutefois la flexibilité d'un tel dispositif, conçu principalement pour limiter les propagations de vibrations le long d'une canalisation (par exemple une canalisation d'échappement d'un véhicule automobile), est relativement limitée. De plus la réalisation et le montage d'un tel ensemble sont relativement complexes et nécessitent un ajustement précis des dimensions des pièces mises en oeuvre, ce qui en augmente les coûts de fabrication.  However, the flexibility of such a device, designed primarily to limit the propagation of vibrations along a pipe (for example an exhaust pipe of a motor vehicle), is relatively limited. Moreover the realization and assembly of such an assembly are relatively complex and require a precise adjustment of the dimensions of the parts used, which increases the manufacturing costs.

La présente invention a pour but de proposer un dispositif d'interface entre un conduit d'échappement et un tube d'échappement présentant une souplesse suffisante pour permettre les dilatations et déformations, sous l'effet des contraintes thermomécaniques auxquelles ils sont soumis, desdits tube et conduit d'échappement, et autorisant des incidences non perpendiculaires et variables dudit tube d'échappement par rapport audit conduit d'échappement.  The present invention aims to provide an interface device between an exhaust duct and an exhaust tube having a sufficient flexibility to allow expansion and deformation, under the effect of thermomechanical stresses to which they are subjected, said tube and exhaust duct, and allowing non-perpendicular and variable incidences of said exhaust tube with respect to said exhaust duct.

L'invention atteint son but grâce à un dispositif de raccordement d'un tube d'échappement à un conduit d'échappement, dans lequel l'extrémité dudit conduit d'échappement débouche sur un élément d'interface du moteur, dans lequel une bride de montage est placée sensiblement autour dudit tube d'échappement et fixée, par des moyens complémentaires, sur ledit élément d'interface, dans lequel un joint d'étanchéité est comprimé entre ladite bride de montage et ledit élément d'interface, dans lequel un élément approprié est inséré entre ledit tube d'échappement et ladite bride de montage, caractérisé en ce que ledit élément approprié est souple et déformable.  The invention achieves its goal by means of a device for connecting an exhaust tube to an exhaust duct, in which the end of said exhaust duct opens onto an interface element of the engine, in which a flange of mounting is substantially located around said exhaust tube and secured, by complementary means, to said interface member, wherein a seal is compressed between said mounting flange and said interface member, wherein a suitable member is inserted between said exhaust tube and said mounting flange, characterized in that said suitable member is flexible and deformable.

Dans un mode de réalisation préféré de l'invention, ledit élément approprié est une plaque mince de tôle, formée par emboutissage, de forme appropriée, rapportée par soudure sur le pourtour dudit tube d'échappement.  In a preferred embodiment of the invention, said suitable element is a sheet metal plate, formed by stamping, of appropriate shape, reported by welding on the periphery of said exhaust tube.

Avantageusement, l'invention présente également une ou plusieurs des caractéristiques suivantes: ledit élément approprié comporte des moyens de fixation à ladite bride de montage, ledit élément approprié comporte une partie formant manchon autour de ladite extrémité dudit tube d'échappement, et une partie formant bride s'étendant, autour de ladite partie formant manchon, pour former une bride sensiblement plane, ladite partie formant manchon comprend une boucle s'étendant, le long dudit tube d'échappement, dans la direction opposée à l'extrémité de raccordement dudit tube d'échappement audit conduit d'échappement, l'une des extrémités de ladite boucle étant raccordée à ladite partie formant bride dudit élément approprié, et l'autre extrémité de ladite boucle formant un retour s'étendant, le long dudit tube d'échappement, dans la direction de ladite extrémité de raccordement dudit tube d'échappement audit conduit d'échappement.  Advantageously, the invention also has one or more of the following features: said suitable element comprises means for fixing to said mounting flange, said appropriate element comprises a sleeve portion around said end of said exhaust tube, and a portion forming flange extending around said sleeve portion to form a substantially planar flange, said sleeve portion includes a loop extending along said exhaust tube in the opposite direction to the connecting end of said tube exhaust to said exhaust duct, one end of said loop being connected to said flange portion of said suitable member, and the other end of said return loop extending along said exhaust tube in the direction of said connecting end of said exhaust tube to said exhaust duct.

Dans un mode de réalisation alternatif de l'invention, ledit élément approprié est intégré audit joint d'étanchéité.  In an alternative embodiment of the invention, said appropriate member is integral with said seal.

D'autres caractéristiques et avantages de l'invention ressortiront à la lecture de la description qui suit, en référence à l'unique figure annexée présentant une vue schématique, en coupe selon l'axe longitudinal d'un tube d'échappement et d'un conduit d'échappement réalisé dans une culasse d'un moteur, d'un mode de réalisation préféré de l'invention.  Other features and advantages of the invention will emerge on reading the description which follows, with reference to the single appended figure having a schematic view, in section along the longitudinal axis of an exhaust tube and of an exhaust duct made in a cylinder head of an engine, a preferred embodiment of the invention.

Cette figure présente un conduit d'échappement 1 d'un véhicule automobile, d'axe longitudinal Z, dont l'extrémité 2 débouche sur un élément d'interface 3 d'un moteur, comme par exemple une culasse.  This figure shows an exhaust duct 1 of a motor vehicle, of longitudinal axis Z, whose end 2 opens on an interface element 3 of an engine, such as a cylinder head.

Afin de lier ledit conduit d'échappement 1 à un tube d'échappement 4, d'axe longitudinal Z', l'invention propose la mise en place, autour de l'extrémité dudit tube d'échappement 4, d'un élément 5 approprié et présentant, par le matériau le Constituant et sa mise en oeuvre, une certaine souplesse.  In order to link said exhaust duct 1 to an exhaust tube 4, of longitudinal axis Z ', the invention proposes the introduction, around the end of said exhaust tube 4, of an element 5. appropriate and presenting, by the material Constituant and its implementation, a certain flexibility.

Dans un mode de réalisation préféré de l'invention. non exclusif, ledit élément approprié 5 est réalisé par emboutissage dans une tale mince (typiquement et de manière non limitative: une tôle de quelques millimètres d'épaisseur), et comprend. mspectivement, une partie 51 formant sensiblement un manchon autour de ladite extrémité dudit tube d'échappement 4, et une partie 52 s'étendant, autour d'une des extrémités de ladite partie 51, pour former une bride sensiblement plane, Ladite partie 51 forme sensiblement une boucle 510 s'étendant, le long dudit tube d'échappement 4, dans fa direction opposée à l'extrémité de raccordement dudit tube d'échappement 4 audit conduit d'échappement 1. L'une des extrémités de ladite boucle 510 est raccordée à ladite partie 52 dudit élément approprié 5. L'autre extrémité de ladite boucle 510 forme, par ailleurs, un retour 511 s'étendant, le long dudit tube d'échappement 4, dans la direction de ladite extrémité de raccordement dudit tube d'échappement 4 audit conduit d'échappement 1. Ledit retour 511 est fixé sur te pourtour dudit tube d'échappement 4, par exemple et de manière non limitative, par un cordon de soudure 512. Ainsi ledit élément approprié 5 est lié de manière étanche audit tube d'échappement 4.  In a preferred embodiment of the invention. non-exclusive, said appropriate element 5 is made by stamping in a thin tale (typically and not limited to: a sheet of a few millimeters thick), and comprises. mspectively, a portion 51 forming substantially a sleeve around said end of said exhaust tube 4, and a portion 52 extending around one end of said portion 51, to form a substantially flat flange, said part 51 form substantially a loop 510 extending along said exhaust tube 4, in a direction opposite to the connecting end of said exhaust tube 4 to said exhaust duct 1. One end of said loop 510 is connected to said portion 52 of said appropriate member 5. The other end of said loop 510 further forms a return 511 extending along said exhaust tube 4 in the direction of said connecting end of said tube. Exhaust 4 to said exhaust duct 1. Said return 511 is fixed around said exhaust tube 4, for example and in a nonlimiting manner, by a weld bead 512. Thus said appropriate element 5 is sealingly to said exhaust pipe 4.

La partie 52 comporte, en outre, des moyens appropriés 520, destinés à coopérer avec des moyens complémentaires 6 adaptés pour permettre la fixation dudit élément approprié 5 audit élément d'interface 3, Avantageusement, et de manière non limitative, lesdits moyens appropriés 520 consistent en un ensemble de trous lisses régulièrement repartis sur la circonférence de ladite partie 52 dudit élément approprié 5, destinés é coopérer avec un ensemble de goujons 61, écrous 62, et rondelles de placage 63 formant lesdits moyens complémentaires 6.  The part 52 further comprises appropriate means 520 for cooperating with complementary means 6 adapted to allow attachment of said appropriate element 5 to said interface element 3. Advantageously, and in a nonlimiting manner, said appropriate means 520 consist of a set of smooth holes regularly distributed over the circumference of said portion 52 of said appropriate element 5, intended to cooperate with a set of studs 61, nuts 62, and washers 63 forming said complementary means 6.

La liaison dudit tube d'échappement 4 audit conduit d'échappement 1 s'effectue au mayen d'une bride de montage 7 équipée de moyens appropriés 70 destinés à coopérer avec lesdits moyens appropriés 6 et 520 précédemment définis.  The connection of said exhaust tube 4 to said exhaust duct 1 is carried out mayen a mounting flange 7 equipped with suitable means 70 for cooperating with said appropriate means 6 and 520 previously defined.

Lors de l'assemblage, lesdits moyens appropriés 6 sont respectivement insérés dans lesdits moyens appropriés 520, puis dans lesdits moyens appropriés 70 de ladite bride de montage 7, et enfin dans des moyens appropriés 8 régulièrement répartis, de manière correspondante è ladite répartition desdits moyens appropriés 520 et 70, sur ledit élément d'interface 3, è fa périphérie dudit ti orifice débouchant 2 dudit conduit d'échappement 1. Un joint d'étanchéité 9 est, de plus, inséré entre ledit élément d'Interface 3 et la surface de ladite bride de montage 7 au regard dudit élément d'interface 3: le serrage desdits moyens appropriés 6 conduit alors à l'écrasement dudit joint d'étanchéité 9, assurant l'étanchéité de la liaison.  During assembly, said appropriate means 6 are respectively inserted in said appropriate means 520, then in said appropriate means 70 of said mounting flange 7, and finally in appropriate means 8 regularly distributed, correspondingly to said distribution of said means 520 and 70, on said interface element 3, to the periphery of said opening orifice 2 of said exhaust duct 1. A seal 9 is furthermore inserted between said interface element 3 and the surface. of said mounting flange 7 facing said interface element 3: the clamping of said appropriate means 6 then leads to the collapse of said seal 9, sealing the connection.

La présence de ladite boucle 510 et dudit retour 511 précédemment définis, ainsi que la souplesse dudit élément approprié 5 autorisent alors une certaltie liberté de mouvements dudit tube) d'échappement 4 par rapport audit conduit d'échappement 1: sous l'effet, par exempte. des déformations ou I.0 dilatations thermiques liées aux contraintes thermomécaniques de l'environnement desdits tube 4 et conduit 1 d'échappement. En particulier, sous l'effet de déformations selon la direction dudit axe longitudinal Z' dudit tube d'échappement 4, Cu selon des directions axiales sensiblement perpendiculaires audit axe Z', ou selon des directions combinées de ces deux directions, fa forme t 5 et les dimensions dudit retour 511 et de ladite boude 510 permettront, en raison de la souplesse et de la relative élasticité liées au matériau constituant ledit élément approprié 5 et é sa mise en oeuvre, l'existence de jeux de déplacement dudit tube d'échappement 4 par rapport audit conduit d'échappement 1.  The presence of said loop 510 and said return 511 previously defined, as well as the flexibility of said appropriate element 5 then allow a certain freedom of movement of said exhaust tube 4 with respect to said exhaust duct 1: under the effect, by free. deformations or I.0 thermal expansions related to the thermomechanical stresses of the environment of said tube 4 and exhaust duct 1. In particular, under the effect of deformations in the direction of said longitudinal axis Z 'of said exhaust tube 4, Cu in axial directions substantially perpendicular to said axis Z', or in combined directions of these two directions, f form 5 and the dimensions of said return 511 and said slug 510 will, due to the flexibility and relative elasticity of the material constituting said appropriate element 5 and é implementation, the existence of displacement games of said exhaust tube 4 with respect to said exhaust duct 1.

Il en résulte que l'invention permet ainsi, en outre, une certaine liberté de décalage angulaire entre lesdits axes longitudinaux Z' et Z respectivement dudit tube 4 et conduit 1 d'échappement, permettant ainsi do s'affranchir de ta nécessité d'une incidence normale et fixe dudit tube d'échappement 4 par rapport audit conduit d'échappement 1, et autorisant alors de plus larges possibilités d'implantation et de design de ces différents éléments.  It follows that the invention thus allows, in addition, a certain freedom of angular displacement between said longitudinal axes Z 'and Z respectively of said tube 4 and leads 1 exhaust, thus making it possible to overcome the need for a normal and fixed incidence of said exhaust tube 4 with respect to said exhaust pipe 1, and then allowing wider possibilities of implantation and design of these various elements.

Il est à noter que, dans un mode de réalisation alternatif de l'invention, ledit élément approprie 5 et ledit joint d'étanchéité 9 peuvent titre réalisés en une pièce unique, simplifiant ainsi la mise en oeuvre de l'invention et l'assemblage dudit tube d'échappement 4 et dudit conduit d'échappement 1.  It should be noted that, in an alternative embodiment of the invention, said appropriate element 5 and said seal 9 can be made in a single piece, thus simplifying the implementation of the invention and the assembly. said exhaust pipe 4 and said exhaust pipe 1.

Claims (10)

Revendicationsclaims 1. Dispositif de raccordement d'un tube d'échappement (4) à un conduit d'échappement (1), dans lequel l'extrémité (2) dudit conduit d'échappement (1) débouche sur un élément d'interface (3) du moteur, dans lequel une bride de montage (7) est placée sensiblement autour dudit tube d'échappement (4) et fixée, par des moyens complémentaires (6), (70), et (8), sur ledit élément d'interface (3), dans lequel un joint d'étanchéité (9) est comprimé entre ladite bride de montage (7) et ledit élément d'interface (3), dans lequel un élément approprié (5) est inséré entre ledit tube d'échappement (4) et ladite bride de montage (7), caractérisé en ce que ledit élément approprié (5) est souple et déformable.  A device for connecting an exhaust pipe (4) to an exhaust pipe (1), wherein the end (2) of said exhaust pipe (1) opens onto an interface element (3). ) of the motor, in which a mounting flange (7) is placed substantially around said exhaust tube (4) and secured by complementary means (6), (70), and (8) to said element interface (3), wherein a seal (9) is compressed between said mounting flange (7) and said interface member (3), wherein a suitable member (5) is inserted between said tube exhaust (4) and said mounting flange (7), characterized in that said suitable element (5) is flexible and deformable. 2. Dispositif selon la revendication 1, caractérisé en ce que ledit élément approprié (5) est réalisé par emboutissage d'une plaque de tôle 15 métallique mince, dont l'épaisseur n'excède pas quelques millimètres.  2. Device according to claim 1, characterized in that said appropriate element (5) is made by stamping a thin sheet metal plate whose thickness does not exceed a few millimeters. 3. Dispositif selon l'une ou l'autre des revendications 1 ou 2, caractérisé en ce que ledit élément approprié (5) comporte principalement une partie (51) formant manchon autour de ladite extrémité dudit tube d'échappement (4), et une partie (52) formant bride s'étendant, autour d'une extrémité de ladite partie (51), pour former une bride sensiblement plane.  3. Device according to either of claims 1 or 2, characterized in that said appropriate element (5) mainly comprises a portion (51) forming a sleeve around said end of said exhaust tube (4), and a flange portion (52) extending around one end of said portion (51) to form a substantially planar flange. 4. Dispositif selon la revendication 3, caractérisé en ce que ladite partie (51) formant manchon forme sensiblement une boucle (510) s'étendant, le long dudit tube d'échappement (4), dans la direction opposée à l'extrémité de raccordement dudit tube d'échappement (4) audit conduit d'échappement (1), l'une des extrémités de ladite boucle (510) étant raccordée à ladite partie (52) formant bride dudit élément approprié (5), et l'autre extrémité de ladite boucle (510) formant un retour (511) s'étendant, le long dudit tube d'échappement (4), dans la direction de ladite extrémité de raccordement dudit tube d'échappement (4) audit conduit d'échappement (1).  4. Device according to claim 3, characterized in that said sleeve portion (51) substantially forms a loop (510) extending, along said exhaust tube (4), in the direction opposite to the end of connecting said exhaust tube (4) to said exhaust duct (1), one end of said loop (510) being connected to said flange portion (52) of said suitable member (5), and the other end of said return loop (510) extending along said exhaust tube (4) in the direction of said connecting end of said exhaust tube (4) to said exhaust duct ( 1). 5. Dispositif selon la revendication 4, caractérisé en ce que ledit retour (511) de ladite partie (51) formant manchon dudit élément approprié (5) est fixé de manière étanche, par des moyens appropriés (512) , sur le pourtour dudit tube d'échappement (4).  5. Device according to claim 4, characterized in that said return (511) of said sleeve portion (51) of said appropriate member (5) is sealingly secured by appropriate means (512) on the periphery of said tube. exhaust (4). 6. Dispositif selon l'une quelconque des revendications 3 à 5, caractérisé en ce que ladite partie (52) formant bride dudit élément approprié (5) comporte des moyens appropriés (520) destinés à coopérer avec lesdits moyens complémentaires (6) pour permettre la fixation dudit élément approprié (5) à ladite bride de montage (7) et audit élément d'interface (3)-  6. Device according to any one of claims 3 to 5, characterized in that said flange portion (52) of said appropriate element (5) comprises appropriate means (520) for cooperating with said complementary means (6) to allow fixing said appropriate member (5) to said mounting flange (7) and said interface member (3) - 7. Dispositif selon la revendication 6, caractérisé en ce que lesdits moyens appropriés (520) consistent en un ensemble de trous lisses régulièrement répartis sur la circonférence de ladite partie (52) formant bride dudit élément approprié (5).7. Device according to claim 6, characterized in that said appropriate means (520) consist of a set of smooth holes regularly distributed on the circumference of said flange portion (52) of said appropriate element (5). 8. Dispositif selon la revendication 5, caractérisé en ce que lesdits moyens appropriés (512) consistent en un cordon de soudure étanche.  8. Device according to claim 5, characterized in that said appropriate means (512) consist of a sealed weld bead. 9. Dispositif selon l'une quelconque des revendications 1 à 8, caractérisé en ce que lesdits moyens complémentaires (6) consistent en un ensemble de goujons (61), écrous (62), et rondelles de placage (63).  9. Device according to any one of claims 1 to 8, characterized in that said complementary means (6) consist of a set of studs (61), nuts (62), and washers (63). 10. Dispositif selon l'une quelconque des revendications 1 à 9, caractérisé en ce que ledit élément approprié (5) et ledit joint d'étanchéité (9) sont 20 réalisés en une unique pièce.  10. Device according to any one of claims 1 to 9, characterized in that said appropriate element (5) and said seal (9) are made in one piece.
FR0550608A 2005-03-08 2005-03-08 EXHAUST INTERFACE SHEATH FLANGE Active FR2883031B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0550608A FR2883031B1 (en) 2005-03-08 2005-03-08 EXHAUST INTERFACE SHEATH FLANGE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0550608A FR2883031B1 (en) 2005-03-08 2005-03-08 EXHAUST INTERFACE SHEATH FLANGE

Publications (2)

Publication Number Publication Date
FR2883031A1 true FR2883031A1 (en) 2006-09-15
FR2883031B1 FR2883031B1 (en) 2007-04-20

Family

ID=35219255

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0550608A Active FR2883031B1 (en) 2005-03-08 2005-03-08 EXHAUST INTERFACE SHEATH FLANGE

Country Status (1)

Country Link
FR (1) FR2883031B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005056244B4 (en) * 2005-11-25 2015-07-30 Volkswagen Ag Exhaust system for an internal combustion engine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07259551A (en) * 1994-03-28 1995-10-09 Calsonic Corp Tube fitting device
EP0849446A1 (en) * 1996-12-21 1998-06-24 Daimler-Benz Aktiengesellschaft Arrangement for connecting a manifold
EP0852310A2 (en) * 1997-01-06 1998-07-08 Senior Engineering Investments AG Flexible connector systems
US6086110A (en) * 1997-04-10 2000-07-11 Senior Engineering Investments Ag Vibration decoupling connector for exhaust systems
JP2001263054A (en) * 2000-03-14 2001-09-26 Aisin Takaoka Ltd Exhaust pipe
EP1388650A1 (en) * 2001-05-14 2004-02-11 Honda Giken Kogyo Kabushiki Kaisha Exhaust manifold collecting part connection structure of multi-cylinder internal combustion engine
EP1206631B1 (en) * 1999-08-05 2005-02-02 Hans A. Haerle Exhaust gas manifold

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07259551A (en) * 1994-03-28 1995-10-09 Calsonic Corp Tube fitting device
EP0849446A1 (en) * 1996-12-21 1998-06-24 Daimler-Benz Aktiengesellschaft Arrangement for connecting a manifold
EP0852310A2 (en) * 1997-01-06 1998-07-08 Senior Engineering Investments AG Flexible connector systems
US6086110A (en) * 1997-04-10 2000-07-11 Senior Engineering Investments Ag Vibration decoupling connector for exhaust systems
EP1206631B1 (en) * 1999-08-05 2005-02-02 Hans A. Haerle Exhaust gas manifold
JP2001263054A (en) * 2000-03-14 2001-09-26 Aisin Takaoka Ltd Exhaust pipe
EP1388650A1 (en) * 2001-05-14 2004-02-11 Honda Giken Kogyo Kabushiki Kaisha Exhaust manifold collecting part connection structure of multi-cylinder internal combustion engine

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 02 29 February 1996 (1996-02-29) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 26 1 July 2002 (2002-07-01) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005056244B4 (en) * 2005-11-25 2015-07-30 Volkswagen Ag Exhaust system for an internal combustion engine

Also Published As

Publication number Publication date
FR2883031B1 (en) 2007-04-20

Similar Documents

Publication Publication Date Title
FR2925147A1 (en) DEVICE FOR GUIDING AN ELEMENT IN AN ORIFICE OF A TURBOMACHINE COMBUSTION CHAMBER WALL
FR2612252A1 (en) DEVICE FOR CONNECTING EXHAUST PIPES AND INTERNAL COMBUSTION ENGINE EQUIPPED WITH SAID DEVICE
WO2005088093A1 (en) Device for the reversible assembly of first and second tubular sections of an exhaust line, and gasket for one such assembly device
EP0376772A1 (en) Movable pipe connection, especially for motor vehicle exhaust pipes
FR2835018A1 (en) IMPROVEMENT TO A DECOUPLING HOSE FOR AN EXHAUST LINE OF A MOTOR VEHICLE ENGINE
FR2886363A1 (en) FLAT METAL JOINT HAVING FRANGIBLE LINK PARTS
EP0298815B1 (en) Flexible coupling
FR2847938A1 (en) IMPROVEMENT TO A DECOUPLING FLEXIBLE FOR A MOTOR VEHICLE ENGINE EXHAUST LINE
FR2883031A1 (en) Exhaust pipe and exhaust duct connecting device for motor vehicle, has flexible and deformable unit placed between pipe and mounting clip that is fixed on interface unit in which duct is opened, and gasket placed between clip and unit
EP0939209A2 (en) Metal gasket seal for the exhaust gas line of an internal combustion engine
FR2886364A1 (en) Flat metal gasket e.g. for i.c. engine cylinder head and exhaust manifold has connecting portions between seal sections made with elastically deformable zones
FR2929642A1 (en) Lubricant i.e. oil, supply tube for engine of vehicle, has articulated sealing connection comprising male and female parts for authorizing translation, rotation and pivoting of tubular sections with respect to each other
FR2873425A1 (en) Exhaust gas pipe fixation device for internal combustion engine of motor vehicle, has flange cooperating with stainless steel pipe end, counter flange integrated to cylinder head, and unit assuring flange and counter flange pre-assembling
FR2910110A3 (en) Snap-on connector device for motor vehicle, has annular connection portion including minimum inner diameter, which is larger than minimum outer diameter of another portion for forming swiveling angle between longitudinal axes of ends
EP1870306A1 (en) Servomotor with support struts comprising reinforced sealing rings
FR2953580A1 (en) Joint flanges for assembling exhaust gas circulation duct and exhaust manifold of diesel engine, has joint surface comprising unhook that is placed at another unhook of duct when surfaces of duct and flanges are in contact with each other
FR2740511A1 (en) I.C. engine exhaust gas recirculator
FR2901189A1 (en) Exhaust element`s e.g. tube, part assembling device for vehicle, has support units constituted by flanges and immobilizing unit constituted by collar to assemble/disassemble parts according to radial displacement with respect to axes
FR2883063A1 (en) Exhaust line unit and tube connector for exhaust gas recirculation circuit, has fixing unit with mobile flange that has V-block section supported against another flange and is fixed by fixing units integrated to exhaust line unit
FR2842868A1 (en) Exhaust gas installation for i.c. engine with two gas evacuation components, one with U-shaped fixing part abutted against annular weather strip of second component and connected to it by collar
FR2848279A1 (en) Exhaust pipe gasket made from stamped metal has edge that acts as gas deflector and hooks for attaching to one flange
FR2851791A1 (en) Injector sealing joint comprises circular projecting support portion compressed between injector circular surfaces and cylinder head wall
FR2901861A1 (en) Low pressure chamber and decompression line connection part for motor vehicle, has elements with contact surfaces, and tapered rings permitting to choose angular position of pipette around elements assembling axis inclined at preset angle
FR2475685A1 (en) Ball joint vehicle exhaust pipe - uses part spherical spigot in collar socket with outer collar sprung with axial and radial float
FR2503322A1 (en) Clamp for exhaust tubes for vehicle - has ring with radial slots tightened over exhaust tubes

Legal Events

Date Code Title Description
PLFP Fee payment

Year of fee payment: 11

PLFP Fee payment

Year of fee payment: 12

PLFP Fee payment

Year of fee payment: 13