FR2925648A3 - Sealed fixation device for tube end in e.g. exhaust circuit, of motor vehicle, has tube comprising truncated conical end that includes tubular section whose inner surface contacts with O-ring received in circular groove - Google Patents

Sealed fixation device for tube end in e.g. exhaust circuit, of motor vehicle, has tube comprising truncated conical end that includes tubular section whose inner surface contacts with O-ring received in circular groove Download PDF

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Publication number
FR2925648A3
FR2925648A3 FR0759991A FR0759991A FR2925648A3 FR 2925648 A3 FR2925648 A3 FR 2925648A3 FR 0759991 A FR0759991 A FR 0759991A FR 0759991 A FR0759991 A FR 0759991A FR 2925648 A3 FR2925648 A3 FR 2925648A3
Authority
FR
France
Prior art keywords
tube
ring
circular groove
tubular section
whose inner
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
FR0759991A
Other languages
French (fr)
Inventor
Arnaud Guibout
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 FR0759991A priority Critical patent/FR2925648A3/en
Publication of FR2925648A3 publication Critical patent/FR2925648A3/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F16L23/00—Flanged joints
    • F16L23/04—Flanged joints the flanges being connected by members tensioned in the radial plane
    • 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
    • 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
    • F16L23/00—Flanged joints
    • F16L23/16—Flanged joints characterised by the sealing means
    • 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
    • F16L23/00—Flanged joints
    • F16L23/16—Flanged joints characterised by the sealing means
    • F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
    • 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
    • F16L2201/00—Special arrangements for pipe couplings
    • F16L2201/10—Indicators for correct coupling

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Gasket Seals (AREA)

Abstract

The device has a tube (10) assembled with a component (20) using a V-band type fixing clamp (30). A complementary part (21) of the component defines a circular groove (22) that receives an O-ring (23). A truncated conical end (11) of the tube includes a tubular section (13) whose inner surface contacts with the O-ring. An end of the section is flared for permitting the passage of the O-ring. The end of the section defines notches (14) for visualizing the O-ring. The clamp defines openings (31) for visualizing the O-ring.

Description

DISPOSITIF DE FIXATION ETANCHE D'UN TUYAU La présente invention concerne les dispositifs de fixation étanche d'un tuyau sur un autre composant de véhicule automobile, comme par exemple un autre tuyau, un refroidisseur de gaz d'échappement, etc... The present invention relates to devices for sealing a pipe to another component of a motor vehicle, such as, for example, another pipe, an exhaust gas cooler, etc.

La présente invention concerne plus particulièrement les dispositifs de fixation étanche d'une extrémité d'un tuyau sur un composant, qui sont maintenus serrés ensemble au moyen d'un collier de fixation. Le collier de fixation est appelé V-BAND. Dans ce type de dispositif, le tuyau comporte une extrémité tronconique destinée à venir en appui contre une partie complémentaire du composant. Le document US3964773 décrit un tel dispositif. Dans ce document, l'extrémité tronconique est destinée à venir en appui contre une partie complémentaire du composant avec interposition d'un joint d'étanchéité, de type joint plat métallique. L'inconvénient des dispositifs de ce type est que montage avec le joint peut s'avérer délicat à mettre en oeuvre, surtout que l'étanchéité du dispositif dépend grandement de la présence et de la bonne mise en place du joint. L'invention vise à pallier les inconvénients de l'état de la technique. Pour y parvenir, elle fournit un dispositif de fixation étanche d'une extrémité d'un tuyau sur un autre composant au moyen d'un collier de fixation, l'extrémité du tuyau comportant un premier tronçon tronconique destinée à venir en appui contre une surface d'une partie complémentaire du composant. Selon l'invention, la partie complémentaire définit une gorge circulaire recevant un joint torique et en ce que l'extrémité du tuyau comporte un deuxième tronçon tubulaire dont la surface intérieure est destinée à entrer en contact avec le joint torique. Mais d'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui suit. Pour sa compréhension, on se reportera à l'unique figure représentant schématiquement en coupe le dispositif selon l'invention. The present invention relates more particularly to the devices for sealing one end of a pipe to a component, which are held tight together by means of a fastening collar. The clamp is called V-BAND. In this type of device, the pipe comprises a frustoconical end intended to bear against a complementary part of the component. US3964773 discloses such a device. In this document, the frustoconical end is intended to abut against a complementary part of the component with the interposition of a seal, type flat gasket. The disadvantage of devices of this type is that mounting with the seal can be difficult to implement, especially that the tightness of the device greatly depends on the presence and the proper implementation of the seal. The invention aims to overcome the disadvantages of the state of the art. To achieve this, it provides a device for sealing one end of a pipe to another component by means of a fastening collar, the end of the pipe having a first frustoconical portion intended to bear against a surface a complementary part of the component. According to the invention, the complementary part defines a circular groove receiving an O-ring and in that the end of the pipe comprises a second tubular section whose inner surface is intended to come into contact with the O-ring. But other features and advantages of the invention will appear on reading the detailed description which follows. For its understanding, reference will be made to the single figure showing schematically in section the device according to the invention.

Le dispositif de fixation étanche comporte un tuyau 10 à assembler avec un composant 20 au moyen d'un collier de fixation 30. Ce dispositif est généralement destiné pour les circuits d'admission, d'échappement, et/ou de recirculation de gaz d'échappement de moteurs de véhicules automobiles. Le collier de fixation 30 est à fixation rapide, de type V-BAND. II sert à maintenir en contact, notamment axial, l'extrémité du tuyau 10 contre le composant 20. The waterproof fastening device comprises a pipe 10 to be assembled with a component 20 by means of a fastening collar 30. This device is generally intended for the intake, exhaust, and / or gas recirculation circuits. exhaust of motor vehicle engines. The fixing collar 30 is quick-fastening, type V-BAND. It serves to maintain in contact, in particular axial, the end of the pipe 10 against the component 20.

Le tuyau 10 comporte une extrémité tronconique 11. Le composant 20 comporte une partie complémentaire 21, définissant une première surface inclinée et une deuxième surface inclinée. L'extrémité tronconique 11 du tuyau 10 est destinée à venir en appui contre la première surface inclinée de la partie complémentaire 21 du composant 20. Le collier 30 est en contact d'une part avec l'extrémité tronconique 11 du tuyau 10, et d'autre part avec la deuxième surface inclinée de la partie complémentaire 21 du composant 20. L'extrémité tronconique 11 du tuyau 10 comporte au moins deux tronçons qui peuvent être d'angles d'ouverture différents. Le premier tronçon 12 est tronconique et c'est celui qui est destiné à venir en appui contre la première surface inclinée de la partie complémentaire 21 du composant 20. Le deuxième tronçon tubulaire 13 prolonge le premier tronçon 12 et peut être destiné à recouvrir au moins partiellement la partie complémentaire 21 du composant 20. La partie complémentaire 21 définie une gorge circulaire 22, dont l'axe de révolution est sensiblement coaxial avec celui du conduit du composant 20 qui communique avec le tuyau 10. Conformément à la figure, la gorge 22 se trouve entre les deux surfaces inclinées de la partie complémentaire 21 selon l'axe du conduit du composant 20. La gorge circulaire 22 reçoit un joint torique 23. Le joint torique 23 dépasse de la gorge circulaire 22, et la surface intérieure du deuxième tronçon tubulaire 13 est destinée à entrer en contact avec le joint torique 23. La partie complémentaire 21 peut être une pièce massive sur laquelle est définie la gorge circulaire 22. Dans un autre mode de réalisation, la partie complémentaire 21 et la gorge circulaire 22 peuvent être réalisées à partir d'un tube, de préférence par hydroformage. L'extrémité 15 du deuxième tronçon 13 tubulaire peut être évasée pour favoriser le passage du joint torique 23 lors de l'assemblage du dispositif. Ainsi, le dispositif selon l'invention apporte une étanchéité améliorée par rapport aux dispositifs connus, tout en proposant une solution dans laquelle le joint d'étanchéité est imperdable, une fois mis en place dans la gorge circulaire 22. Selon un aspect complémentaire de l'invention, l'extrémité du deuxième tronçon tubulaire 13 peut définir des découpes 14 de visualisation du joint torique. La profondeur des découpes 14 de visualisation est définie de sorte que le joint torique 23 soit toujours en contact sur toute la circonférence de la surface intérieure du deuxième tronçon tubulaire 13. De même, le collier peut définir des ouvertures 31 de visualisation du joint torique 23. Ainsi, dans le dispositif selon l'invention, il est possible d'effectuer un contrôle visuel de présence du joint après la fin du montage. Le joint torique 23 pourra être d'une couleur qui le rende facilement visible depuis l'extérieur du dispositif. The pipe 10 has a frustoconical end 11. The component 20 has a complementary portion 21, defining a first inclined surface and a second inclined surface. The frustoconical end 11 of the pipe 10 is intended to abut against the first inclined surface of the complementary part 21 of the component 20. The collar 30 is in contact on the one hand with the frustoconical end 11 of the pipe 10, and secondly with the second inclined surface of the complementary portion 21 of the component 20. The frustoconical end 11 of the pipe 10 comprises at least two sections which can be of different opening angles. The first section 12 is frustoconical and it is the one that is intended to bear against the first inclined surface of the complementary portion 21 of the component 20. The second tubular section 13 extends the first section 12 and may be intended to cover at least partially the complementary portion 21 of the component 20. The complementary portion 21 defines a circular groove 22, the axis of revolution is substantially coaxial with that of the conduit of the component 20 which communicates with the pipe 10. In accordance with the figure, the groove 22 is located between the two inclined surfaces of the complementary portion 21 along the axis of the conduit of the component 20. The circular groove 22 receives an O-ring 23. The O-ring 23 protrudes from the circular groove 22, and the inner surface of the second section tubular 13 is intended to come into contact with the O-ring 23. The complementary part 21 can be a massive piece on which is defeated In another embodiment, the complementary portion 21 and the circular groove 22 can be made from a tube, preferably by hydroforming. The end 15 of the second tubular section 13 may be flared to promote the passage of the O-ring 23 during assembly of the device. Thus, the device according to the invention provides an improved seal compared to known devices, while providing a solution in which the seal is captive, once set up in the circular groove 22. According to a complementary aspect of the In the invention, the end of the second tubular section 13 may define cutouts 14 for viewing the O-ring. The depth of the viewing cutouts 14 is set so that the O-ring 23 is always in contact over the entire circumference of the inner surface of the second tubular section 13. Similarly, the collar may define O-ring viewing apertures 23 Thus, in the device according to the invention, it is possible to carry out a visual check of the presence of the seal after the end of the assembly. The O-ring 23 may be of a color that makes it easily visible from outside the device.

Claims (6)

Revendicationsclaims 1) Dispositif de fixation étanche d'une extrémité (11) d'un tuyau (10) sur un autre composant (20) au moyen d'un collier de fixation (30), l'extrémité (11) du tuyau (10) comportant un premier tronçon tronconique (12) destinée à venir en appui contre une surface d'une partie complémentaire (21) du composant (20), caractérisé en ce que la partie complémentaire (21) définit une gorge circulaire (22) recevant un joint torique (23) et en ce que l'extrémité (11) du tuyau (10) comporte un deuxième tronçon tubulaire (13) dont la surface intérieure est destinée à entrer en contact avec le joint torique (23). 1) Device for sealing one end (11) of a pipe (10) to another component (20) by means of a clamp (30), the end (11) of the pipe (10) comprising a first frustoconical section (12) intended to bear against a surface of a complementary part (21) of the component (20), characterized in that the complementary part (21) defines a circular groove (22) receiving a joint toric (23) and that the end (11) of the pipe (10) has a second tubular section (13) whose inner surface is intended to come into contact with the O-ring (23). 2) Dispositif de fixation selon la revendication précédente, caractérisée en ce que l'extrémité du deuxième tronçon tubulaire (13) est évasée pour favoriser le passage du joint torique (23). 2) Fixing device according to the preceding claim, characterized in that the end of the second tubular section (13) is flared to promote the passage of the O-ring (23). 3) Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que l'extrémité du deuxième tronçon tubulaire (13) définie des découpes (14) de visualisation du joint torique (23). 3) Device according to any one of the preceding claims, characterized in that the end of the second tubular section (13) defines cutouts (14) for viewing the O-ring (23). 4) Dispositif selon la revendication précédente, caractérisé en ce que le collier (30) définit des ouvertures (31) de visualisation du joint torique (23). 4) Device according to the preceding claim, characterized in that the collar (30) defines openings (31) for viewing the O-ring (23). 5) Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la partie complémentaire (21) et la gorge circulaire (22) sont réalisées à partir d'un tube, de préférence par hydroformage. 5) Device according to any one of the preceding claims, characterized in that the complementary portion (21) and the circular groove (22) are formed from a tube, preferably by hydroforming. 6) Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la partie complémentaire (21) est une pièce massive sur laquelle est définie la gorge (22). 3 6) Device according to any one of claims 1 to 4, characterized in that the complementary part (21) is a solid piece on which is defined the groove (22). 3
FR0759991A 2007-12-19 2007-12-19 Sealed fixation device for tube end in e.g. exhaust circuit, of motor vehicle, has tube comprising truncated conical end that includes tubular section whose inner surface contacts with O-ring received in circular groove Withdrawn FR2925648A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0759991A FR2925648A3 (en) 2007-12-19 2007-12-19 Sealed fixation device for tube end in e.g. exhaust circuit, of motor vehicle, has tube comprising truncated conical end that includes tubular section whose inner surface contacts with O-ring received in circular groove

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0759991A FR2925648A3 (en) 2007-12-19 2007-12-19 Sealed fixation device for tube end in e.g. exhaust circuit, of motor vehicle, has tube comprising truncated conical end that includes tubular section whose inner surface contacts with O-ring received in circular groove

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FR2925648A3 true FR2925648A3 (en) 2009-06-26

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FR0759991A Withdrawn FR2925648A3 (en) 2007-12-19 2007-12-19 Sealed fixation device for tube end in e.g. exhaust circuit, of motor vehicle, has tube comprising truncated conical end that includes tubular section whose inner surface contacts with O-ring received in circular groove

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019115390A1 (en) * 2017-12-11 2019-06-20 Audi Ag Arrangement and method for connecting fluid-conducting components, more particularly in the exhaust gas line of a motor vehicle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3964773A (en) 1974-09-13 1976-06-22 Mercury Metal Products, Inc. Anti-emission exhaust pipe joint and clamp therefor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3964773A (en) 1974-09-13 1976-06-22 Mercury Metal Products, Inc. Anti-emission exhaust pipe joint and clamp therefor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019115390A1 (en) * 2017-12-11 2019-06-20 Audi Ag Arrangement and method for connecting fluid-conducting components, more particularly in the exhaust gas line of a motor vehicle
CN111512030A (en) * 2017-12-11 2020-08-07 奥迪股份公司 Device and method for connecting fluid-conducting components, in particular in the exhaust system of a motor vehicle
US11506107B2 (en) 2017-12-11 2022-11-22 Audi Ag Arrangement and method for connecting fluid-conducting components, more particularly in the exhaust gas line of a motor vehicle

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