WO1997026449A1 - Ring-shaped exhaust gasket and exhaust coupling comprising same - Google Patents

Ring-shaped exhaust gasket and exhaust coupling comprising same Download PDF

Info

Publication number
WO1997026449A1
WO1997026449A1 PCT/FR1997/000052 FR9700052W WO9726449A1 WO 1997026449 A1 WO1997026449 A1 WO 1997026449A1 FR 9700052 W FR9700052 W FR 9700052W WO 9726449 A1 WO9726449 A1 WO 9726449A1
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust
ring
flange
face
spherical
Prior art date
Application number
PCT/FR1997/000052
Other languages
French (fr)
Inventor
Louis Brandener
Original Assignee
Financiere De Segur
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 Financiere De Segur filed Critical Financiere De Segur
Priority to EP97900633A priority Critical patent/EP0874951A1/en
Publication of WO1997026449A1 publication Critical patent/WO1997026449A1/en

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
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • F16J15/12—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
    • F16J15/121—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement
    • F16J15/126—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement consisting of additions, e.g. metallic fibres, metallic powders, randomly dispersed in the packing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/02—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
    • F16L27/04—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces
    • F16L27/06—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces with special sealing means between the engaging surfaces
    • F16L27/073—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces with special sealing means between the engaging surfaces one of the cooperating surfaces forming the sealing means

Definitions

  • Annular exhaust gasket and exhaust coupling comprising it.
  • the present invention relates to an exhaust gasket, in particular for a ball joint exhaust coupling between two sections of exhaust tube.
  • one of the tube sections is equipped with a flange having a flat face on which an end face is supported. plane of an annular exhaust gasket having a cylindrical internal face mounted on this first section of tube and an external face having a spherical portion on which bears a flange associated with the second section of tube and having a spherical internal surface resting on the spherical outer face of the exhaust gasket.
  • the flanges associated with the tube sections are moreover fixed to one another in an elastic manner.
  • the facing spherical surfaces rub against one another and the seal is ensured on the one hand due to the elasticity of the composite material forming the exhaust seal and on the other hand due to the smooth surface condition of the facing spherical surfaces.
  • an exhaust gasket comprising a strapping ring flush with the spherical external surface of the exhaust gasket and extending in the vicinity of the flat end face.
  • the strapping ring maintains the composite material and prevents it from flaring so that the longevity of the joint exhaust is considerably increased.
  • the strapping ring has an edge which coincides with the flat end face of the exhaust gasket.
  • the strapping ring has an edge which substantially coincides with an edge of the flange having a spherical internal surface.
  • FIG. 1 is a view in axial section of an exhaust coupling fitted with an exhaust gasket according to the invention
  • FIG. 2 is an enlarged partial sectional view of the exhaust gasket according to the invention.
  • the exhaust coupling comprises, in a manner known per se, a first section of tube 1 equipped with a first flange 2 having a flat surface 3 recessed relative to one end of the first section of tube 1, and a second section of tube 4 equipped with a second flange 5 having a spherical internal surface 6 extending opposite the first section of tube.
  • An annular exhaust gasket made of composite material is arranged between the flanges.
  • the exhaust gasket has a ring shape and has a cylindrical internal face 7 mounted on the projecting end of the first section of tube 1 and an external face having a spherical portion 8 on which the spherical internal face ⁇ of the second flange 5 is supported.
  • the exhaust gasket also comprises an extreme flat face 9 which bears on the flat face 3 of the first flange 2.
  • the coupling comprises elastic means, not shown, ensuring an elastic assembly of the flanges.
  • the exhaust gasket comprises a strapping ring 10 which is flush with the spherical external surface 8 of the exhaust gasket and extends in the vicinity of the planar end face 9 thereof.
  • an edge 11 of the strapping ring coincides with the flat end face 9 of the exhaust gasket while the opposite edge 12 of the strapping ring substantially coincides with an edge 13 of the spherical inner face of the second flange 5 for a mating rest position as illustrated in figure 1.
  • the exhaust gasket according to the invention can be produced in a conventional manner by placing a cylindrical preform in a mold having one end having a concave spherical internal face and by axially compressing the preform.
  • the composite material forming the preform preferably consists of loose, woven or knitted metallic wires between which are placed particles or a sheet of refractory material such as mica which is trapped in the metallic wires during axial compression.
  • the strapping ring according to the invention is preferably placed in the mold at the same time as the preform coaxially with the latter so that it automatically comes flush with the spherical external surface of the exhaust gasket during the axial compression of the preform.
  • the strapping ring can be produced in the form of a cylindrical tube section by stamping a steel plate or by welding or crimping a steel strip. During axial compression, the strapping ring is deformed and anchored in the composite material. The edges of the crimping ring can be rectilinear or cut to form hooking claws in the composite material during axial compression.
  • the invention is not limited to the embodiment described and it is possible to make variant embodiments without departing from the scope of the invention as defined by the claims.
  • the exhaust gasket according to the invention when the exhaust gasket according to the invention is to be used in an exhaust coupling having a large clearance, it is possible to provide a strapping ring 10 whose upper edge 12 extends inside the internal surface spherical of the second flange for a rest position of the coupling in order to prevent the edge 13 of the second flange from being released from the strapping ring during the relative oscillations of the exhaust pipe sections.

Abstract

A ring-shaped exhaust gasket made of composite material and consisting of a ring with a planar end surface (9), a cylindrical inner surface (7) and an outer surface having a spherical portion (8), as well as a circumferential ring (10) flush mounted in said spherical outer surface (8) and adjacent to the planar end surface (9).

Description

Joint d'échappement annulaire et accouplement d'échappement le comportant. Annular exhaust gasket and exhaust coupling comprising it.
La présente invention concerne un joint d'échap¬ pement, en particulier pour un accouplement d'échappement à rotule entre deux tronçons de tube d'échappement.The present invention relates to an exhaust gasket, in particular for a ball joint exhaust coupling between two sections of exhaust tube.
On sait que lors du montage d'une voiture, et plus particulièrement d'une voiture à moteur transversal, il est nécessaire de prévoir un accouplement flexible entre le collecteur d'échappement fixé au moteur, et le tuyau d'échappement fixé à la carrosserie et supportant le pot d' échappement . Afin d'absorber les mouvements relatifs entre le collecteur et le tuyau d'échappement, et afin d'assurer l'étanchéité, l'un des tronçons de tube est équipé d'une bride présentant une face plane sur laquelle prend appui une face extrême plane d'un joint d'échappement annulaire présentant une face interne cylindrique montée sur ce premier tronçon de tube et une face externe ayant une portion sphérique sur laquelle prend appui une bride associée au second tronçon de tube et présentant une surface interne sphérique prenant appui sur la face externe sphérique du joint d'échappement. Les brides associées aux tronçons de tube sont par ailleurs fixées l'une à l'autre de façon élastique.We know that when mounting a car, and more particularly a car with a transverse engine, it is necessary to provide a flexible coupling between the exhaust manifold fixed to the engine, and the exhaust pipe fixed to the body. and supporting the exhaust pipe. In order to absorb the relative movements between the manifold and the exhaust pipe, and in order to ensure sealing, one of the tube sections is equipped with a flange having a flat face on which an end face is supported. plane of an annular exhaust gasket having a cylindrical internal face mounted on this first section of tube and an external face having a spherical portion on which bears a flange associated with the second section of tube and having a spherical internal surface resting on the spherical outer face of the exhaust gasket. The flanges associated with the tube sections are moreover fixed to one another in an elastic manner.
Lors des mouvements relatifs des tronçons de tube d'échappement les surfaces spheriques en regard frottent l'une contre l'autre et l'étanchéité est assurée d'une part en raison de l'élasticité du matériau composite formant le joint d'échappement et d'autre part en raison de l'état de surface lisse des surfaces spheriques en regard.During the relative movements of the sections of exhaust pipe, the facing spherical surfaces rub against one another and the seal is ensured on the one hand due to the elasticity of the composite material forming the exhaust seal and on the other hand due to the smooth surface condition of the facing spherical surfaces.
La recherche d'une étanchéité de plus en plus poussée pour les accouplements d'échappement flexibles conduit à utiliser des matériaux composites ayant des surfaces spheriques de plus en plus lisses. La finesse des matériaux utilisés a pour conséquence une diminution de résistance mécanique de sorte que sous l'effet des vibra- tions axiales et des hausses de température auxquelles le joint d'échappement est soumis celui-ci tend à se tasser et à s'évaser entre les brides. Lors des oscillations des deux tronçons de tube d'échappement l'un par rapport à l'autre, la matière composite s'étendant entre les brides est soumise à des efforts alternés qui provoquent sa détériora¬ tion, ce qui entraîne progressivement un tassement de plus en plus prononcé du joint d'échappement et une perte de l'étanchéité assurée par celui-ci.The search for an increasingly tight seal for flexible exhaust couplings leads to the use of composite materials having increasingly smooth spherical surfaces. The fineness of the materials used results in a reduction in mechanical strength so that under the effect of axial vibrations and temperature increases at which the exhaust gasket is subjected it tends to settle and flare between the flanges. During the oscillations of the two sections of exhaust pipe with respect to each other, the composite material extending between the flanges is subjected to alternating forces which cause its deterioration ¬ tion, which gradually leads to a compaction of more and more pronounced the exhaust gasket and a loss of tightness ensured by it.
Selon l'invention on prévoit un joint d'échappe- ment comportant une bague de cerclage affleurant la surface externe sphérique du joint d'échappement et s'étendant au voisinage de la face extrême plane.According to the invention there is provided an exhaust gasket comprising a strapping ring flush with the spherical external surface of the exhaust gasket and extending in the vicinity of the flat end face.
Ainsi, sans empêcher les oscillations des tron¬ çons de tube l'un par rapport à l'autre, la bague de cerclage assure un maintien de la matière composite et évite un évasement de celle-ci de sorte que la longévité du joint d'échappement s'en trouve considérablement accrue.Thus, without preventing oscillations of the tube sections relative to each other, the strapping ring maintains the composite material and prevents it from flaring so that the longevity of the joint exhaust is considerably increased.
Selon une version avantageuse de l'invention, la bague de cerclage comporte un bord qui coïncide avec la face extrême plane du joint d'échappement. Ainsi, quel que soit le sens des oscillations des tronçons de tube l'un par rapport à l'autre la bague de cerclage prend appui sur la face plane de la bride associée et l'on évite un mouvement relatif de la bague de cerclage par rapport à la matière composite.According to an advantageous version of the invention, the strapping ring has an edge which coincides with the flat end face of the exhaust gasket. Thus, whatever the direction of the oscillations of the tube sections relative to each other, the strapping ring bears on the flat face of the associated flange and a relative movement of the strapping ring is avoided by compared to the composite material.
Selon un autre aspect avantageux de l'invention, la bague de cerclage comporte un bord qui coïncide sensi¬ blement avec un bord de la bride présentant une surface interne sphérique. Ainsi, tout en réalisant un maintien optimum de la matière composite, on minimise le frottement entre la surface interne sphérique de la bride et la surface externe de la bague de cerclage.According to another advantageous aspect of the invention, the strapping ring has an edge which substantially coincides with an edge of the flange having a spherical internal surface. Thus, while achieving optimum maintenance of the composite material, the friction between the spherical internal surface of the flange and the external surface of the strapping ring is minimized.
D'autres caractéristiques et avantages de l'in¬ vention apparaîtront à la lecture de la description qui suit d'un mode de réalisation particulier non limitatif de l'invention, en relation avec les figures ci-jointes parmi lesquelles :Other characteristics and advantages of the invention will appear on reading the following description of a particular non-limiting embodiment of the invention, in relation to the attached figures among which:
- la figure 1 est une vue en coupe axiale d'un accouplement d'échappement équipé d'un joint d'échappement selon l'invention,FIG. 1 is a view in axial section of an exhaust coupling fitted with an exhaust gasket according to the invention,
- la figure 2 est une vue en coupe partielle agrandie du joint d'échappement selon l'invention.- Figure 2 is an enlarged partial sectional view of the exhaust gasket according to the invention.
En référence aux figures, l'accouplement d'échap¬ pement comporte d'une façon connue en soi un premier tronçon de tube 1 équipé d'une première bride 2 présentant une surface plane 3 en retrait par rapport à une extrémité du premier tronçon de tube 1, et un second tronçon de tube 4 équipé d'une seconde bride 5 présentant une surface interne sphérique 6 s'étendant en regard du premier tronçon de tube. Un joint d'échappement annulaire en matière composite est disposé entre les brides. Le joint d'échappe¬ ment a une forme de bague et comporte une face interne cylindrique 7 montée sur l'extrémité en saillie du premier tronçon de tube 1 et une face externe ayant une portion sphérique 8 sur laquelle la face interne sphérique β de la seconde bride 5 prend appui. Le joint d'échappement comporte en outre une face extrême plane 9 qui prend appui sur la face plane 3 de la première bride 2.With reference to the figures, the exhaust coupling comprises, in a manner known per se, a first section of tube 1 equipped with a first flange 2 having a flat surface 3 recessed relative to one end of the first section of tube 1, and a second section of tube 4 equipped with a second flange 5 having a spherical internal surface 6 extending opposite the first section of tube. An annular exhaust gasket made of composite material is arranged between the flanges. The exhaust gasket has a ring shape and has a cylindrical internal face 7 mounted on the projecting end of the first section of tube 1 and an external face having a spherical portion 8 on which the spherical internal face β of the second flange 5 is supported. The exhaust gasket also comprises an extreme flat face 9 which bears on the flat face 3 of the first flange 2.
Par ailleurs, l'accouplement comporte des moyens élastiques non représentés assurant un assemblage élastique des brides .Furthermore, the coupling comprises elastic means, not shown, ensuring an elastic assembly of the flanges.
Selon l'invention le joint d'échappement comporte une bague de cerclage 10 qui affleure la surface externe sphérique 8 du joint d'échappement et s'étend au voisinage de la face extrême plane 9 de celui-ci. De préférence un bord 11 de la bague de cerclage coïncide avec la face extrême plane 9 du joint d'échappement tandis que le bord opposé 12 de la bague de cerclage coïncide sensiblement avec un bord 13 de la face interne sphérique de la seconde bride 5 pour une position de repos de l'accouplement comme illustré sur la figure 1.According to the invention, the exhaust gasket comprises a strapping ring 10 which is flush with the spherical external surface 8 of the exhaust gasket and extends in the vicinity of the planar end face 9 thereof. Preferably an edge 11 of the strapping ring coincides with the flat end face 9 of the exhaust gasket while the opposite edge 12 of the strapping ring substantially coincides with an edge 13 of the spherical inner face of the second flange 5 for a mating rest position as illustrated in figure 1.
Le joint d'échappement selon l'invention peut être réalisé de façon classique en disposant une préforme cylindrique dans un moule ayant une extrémité présentant une face interne sphérique concave et en comprimant axialement la préforme. La matière composite formant la préforme est de préférence constituée de fils métallique en vrac, tissés ou tricotés entre lesquels sont disposées des particules ou une nappe de matière réfractaire telle que du mica qui est emprisonné dans les fils métalliques lors de la compression axiale. La bague de cerclage selon l'inven¬ tion est de préférence disposée dans le moule en même temps que la préforme coaxialement à celle-ci de sorte qu'elle vient automatiquement affleurer la surface externe sphéri- que du joint d'échappement lors de la compression axiale de la préforme. La bague de cerclage peut être réalisée sous forme d'un tronçon de tube cylindrique par emboutissage d'une plaque d'acier ou encore par soudure ou sertissage d'une bande d'acier. Lors de la compression axiale la bague de cerclage se déforme et s'ancre dans la matière composi¬ te. Les bords de la bague de sertissage peuvent être rectilignes ou découpés pour constituer des griffes d'accrochage dans le matériau composite lors de la compres¬ sion axiale. Bien entendu l'invention n'est pas limitée au mode de réalisation décrit et on peut y apporter des variantes de réalisation sans sortir du cadre de l'inven¬ tion tel que défini par les revendications.The exhaust gasket according to the invention can be produced in a conventional manner by placing a cylindrical preform in a mold having one end having a concave spherical internal face and by axially compressing the preform. The composite material forming the preform preferably consists of loose, woven or knitted metallic wires between which are placed particles or a sheet of refractory material such as mica which is trapped in the metallic wires during axial compression. The strapping ring according to the invention is preferably placed in the mold at the same time as the preform coaxially with the latter so that it automatically comes flush with the spherical external surface of the exhaust gasket during the axial compression of the preform. The strapping ring can be produced in the form of a cylindrical tube section by stamping a steel plate or by welding or crimping a steel strip. During axial compression, the strapping ring is deformed and anchored in the composite material. The edges of the crimping ring can be rectilinear or cut to form hooking claws in the composite material during axial compression. Of course, the invention is not limited to the embodiment described and it is possible to make variant embodiments without departing from the scope of the invention as defined by the claims.
En particulier, lorsque le joint d'échappement selon l'invention doit être utilisé dans un accouplement d'échappement présentant un grand débattement on peut prévoir une bague de cerclage 10 dont le bord supérieur 12 s'étend à l'intérieur de la surface interne sphérique de la seconde bride pour une position de repos de l'accouplement afin d'éviter que le bord 13 de la seconde bride ne soit dégagé de la bague de cerclage lors des oscillations relatives des tronçons de tube d'échappement. In particular, when the exhaust gasket according to the invention is to be used in an exhaust coupling having a large clearance, it is possible to provide a strapping ring 10 whose upper edge 12 extends inside the internal surface spherical of the second flange for a rest position of the coupling in order to prevent the edge 13 of the second flange from being released from the strapping ring during the relative oscillations of the exhaust pipe sections.

Claims

REVENDICATIONS
1. Joint d'échappement annulaire en matière composite ayant une forme de bague comportant une surface interne cylindrique (7) , une face externe ayant une portion sphérique (8) et une face extrême plane (9) , caractérisé en ce qu'il comporte une bague de cerclage (10) affleurant la surface externe sphérique (8) et s'étendant au voisinage de la face extrême plane (9) .1. Annular exhaust gasket made of composite material having a ring shape comprising a cylindrical internal surface (7), an external face having a spherical portion (8) and an extreme planar face (9), characterized in that it comprises a strapping ring (10) flush with the spherical external surface (8) and extending in the vicinity of the extreme planar face (9).
2. Joint d'échappement selon la revendication 1, caractérisé en ce que la bague de cerclage (10) comporte un bord (11) qui coïncide avec la face extrême plane (9) du joint d' échappement .2. exhaust gasket according to claim 1, characterized in that the strapping ring (10) has an edge (11) which coincides with the flat end face (9) of the exhaust gasket.
3. Accouplement d'échappement comportant un premier tronçon de tube (1) équipé d'une première bride (2) présentant une surface plane (3) , un second tronçon de tube (4) équipé d'une seconde bride (5) présentant une face interne sphérique (6) s'étendant au regard du premier tronçon de tube, et un joint d'échappement selon la revendication 1 ou la revendication 2 disposé entre la première bride et la seconde bride, caractérisé en ce que la bague de cerclage (10) comporte un bord (12) qui coïncide sensiblement avec un bord (13) de la seconde bride pour une position de repos de l'accouplement. 3. Exhaust coupling comprising a first section of tube (1) equipped with a first flange (2) having a flat surface (3), a second section of tube (4) equipped with a second flange (5) having a spherical internal face (6) extending facing the first section of tube, and an exhaust gasket according to claim 1 or claim 2 disposed between the first flange and the second flange, characterized in that the strapping ring (10) has an edge (12) which substantially coincides with an edge (13) of the second flange for a rest position of the coupling.
PCT/FR1997/000052 1996-01-15 1997-01-13 Ring-shaped exhaust gasket and exhaust coupling comprising same WO1997026449A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97900633A EP0874951A1 (en) 1996-01-15 1997-01-13 Ring-shaped exhaust gasket and exhaust coupling comprising same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9600363A FR2743604B1 (en) 1996-01-15 1996-01-15 ANNULAR EXHAUST GASKET AND EXHAUST COUPLING COMPRISING THE SAME
FR96/00363 1996-01-15

Publications (1)

Publication Number Publication Date
WO1997026449A1 true WO1997026449A1 (en) 1997-07-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR1997/000052 WO1997026449A1 (en) 1996-01-15 1997-01-13 Ring-shaped exhaust gasket and exhaust coupling comprising same

Country Status (3)

Country Link
EP (1) EP0874951A1 (en)
FR (1) FR2743604B1 (en)
WO (1) WO1997026449A1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3248417A1 (en) * 1982-12-28 1984-06-28 Feodor Burgmann Dichtungswerk Gmbh & Co, 8190 Wolfratshausen GASKET ARRANGEMENT FOR THE ARTICULATED CONNECTION OF TWO PIPELINES, IN PARTICULAR HEATING EXHAUST PIPES
FR2573836A1 (en) * 1984-11-28 1986-05-30 Metex Corp MUFFLER EXHAUST GASKET
US4871181A (en) * 1987-04-09 1989-10-03 Metex Corporation Reinforced squeak free seal for exhaust couplings
EP0376772A1 (en) * 1988-12-27 1990-07-04 Ecia - Equipements Et Composants Pour L'industrie Automobile Movable pipe connection, especially for motor vehicle exhaust pipes
US5040805A (en) * 1989-11-02 1991-08-20 Oiles Corporation Spherical sealing body used for exhaust pipe joint and manufacturing method thereof
WO1995000792A1 (en) * 1993-06-25 1995-01-05 Financiere De Segur Metal part comprising a spherical wall element, method for producing same, and exhaust pipe socket joint comprising said part
US5462291A (en) * 1992-10-12 1995-10-31 Oiles Corporation Spherical annular seal with outer sliding layer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3248417A1 (en) * 1982-12-28 1984-06-28 Feodor Burgmann Dichtungswerk Gmbh & Co, 8190 Wolfratshausen GASKET ARRANGEMENT FOR THE ARTICULATED CONNECTION OF TWO PIPELINES, IN PARTICULAR HEATING EXHAUST PIPES
FR2573836A1 (en) * 1984-11-28 1986-05-30 Metex Corp MUFFLER EXHAUST GASKET
US4871181A (en) * 1987-04-09 1989-10-03 Metex Corporation Reinforced squeak free seal for exhaust couplings
EP0376772A1 (en) * 1988-12-27 1990-07-04 Ecia - Equipements Et Composants Pour L'industrie Automobile Movable pipe connection, especially for motor vehicle exhaust pipes
US5040805A (en) * 1989-11-02 1991-08-20 Oiles Corporation Spherical sealing body used for exhaust pipe joint and manufacturing method thereof
US5462291A (en) * 1992-10-12 1995-10-31 Oiles Corporation Spherical annular seal with outer sliding layer
WO1995000792A1 (en) * 1993-06-25 1995-01-05 Financiere De Segur Metal part comprising a spherical wall element, method for producing same, and exhaust pipe socket joint comprising said part

Also Published As

Publication number Publication date
FR2743604A1 (en) 1997-07-18
EP0874951A1 (en) 1998-11-04
FR2743604B1 (en) 1998-02-06

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