FR2749052A1 - Mounting for motor vehicle exhaust pipe - Google Patents

Mounting for motor vehicle exhaust pipe Download PDF

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Publication number
FR2749052A1
FR2749052A1 FR9606280A FR9606280A FR2749052A1 FR 2749052 A1 FR2749052 A1 FR 2749052A1 FR 9606280 A FR9606280 A FR 9606280A FR 9606280 A FR9606280 A FR 9606280A FR 2749052 A1 FR2749052 A1 FR 2749052A1
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FR
France
Prior art keywords
axes
limiting ring
stiffness
hanger
damping
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
FR9606280A
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French (fr)
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FR2749052B1 (en
Inventor
Gilles Sauvat
Jean Lor
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.)
Hutchinson SA
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Hutchinson SA
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Filing date
Publication date
Application filed by Hutchinson SA filed Critical Hutchinson SA
Priority to FR9606280A priority Critical patent/FR2749052B1/en
Publication of FR2749052A1 publication Critical patent/FR2749052A1/en
Application granted granted Critical
Publication of FR2749052B1 publication Critical patent/FR2749052B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • F01N13/1811—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
    • F01N13/1822—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 for fixing exhaust pipes or devices to vehicle body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
    • B60K13/04—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning exhaust
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/371—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by inserts or auxiliary extension or exterior elements, e.g. for rigidification
    • F16F1/3713—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by inserts or auxiliary extension or exterior elements, e.g. for rigidification with external elements passively influencing spring stiffness, e.g. rings or hoops
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/42—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing
    • F16F1/46—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing loaded mainly in tension
    • 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
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02—Energy absorbers; Noise absorbers
    • F16L55/033—Noise absorbers
    • F16L55/035—Noise absorbers in the form of specially adapted hangers or supports
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2236/00—Mode of stressing of basic spring or damper elements or devices incorporating such elements
    • F16F2236/06—Tension

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • Transportation (AREA)
  • Exhaust Silencers (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

The mounting has an elastic body (2) to damp vibrations across two axes (A). The body has, at the time of its extension between the two axes, a static radius in traction which is relatively small. It has a stop ring (1) passing around the axes formed of a material with a module of elasticity which is high and presenting at the time of its extension between static and traction radii greater than the first. The stop ring is connected laterally to the damping body and directly surrounds the axes so that it will be in parallel wrt the body.

Description

SUSPENTE POUR TUBULURE D'ECHAPPEMENT DE
VEHICULE AUTOMOBILE
La présente invention concerne une suspente pour tubulure d'échappement de véhicule automobile, du type comportant d'une part un corps élastique amortisseur des vibrations traversé par deux axes, à savoir un axe permettant sa liaison à la caisse du véhicule et un axe permettant sa liaison à ladite tubulure, ce corps présentant lors de son extension entre les deux dits axes une raideur statique en traction relativement faible, et d'autre part un anneau limiteur passant autour desdits axes et présentant lors de son extension entre eux une raideur statique en traction notablement plus élevée que la précédente.SUSPENSION FOR EXHAUST TUBING
MOTOR VEHICLE
The present invention relates to a hanger for exhaust pipe of a motor vehicle, of the type comprising on the one hand an elastic vibration-absorbing body crossed by two axes, namely an axis allowing its connection to the vehicle body and an axis allowing its connection to said tube, this body having, when extended between the two said axes, a relatively low static stiffness in tension, and on the other hand a limiting ring passing around said axes and having, when extended between them, a static stiffness in traction significantly higher than the previous one.

Le rôle principal du corps élastique est donc d'amortir les vibrations et de limiter leur transmission de la tubulure d'échappement à la caisse du véhicule ; c'est pourquoi sa raideur en extension sera relativement faible, de l'ordre de 5 à 25 N/mm. Ce corps sera par exemple un élastomère naturel ou synthétique, de façon en soi connue. The main role of the elastic body is therefore to dampen vibrations and limit their transmission from the exhaust manifold to the vehicle body; this is why its stiffness in extension will be relatively low, of the order of 5 to 25 N / mm. This body will for example be a natural or synthetic elastomer, in a manner known per se.

Quant à l'anneau limiteur, il a pour rôle de limiter l'extension maximale de la suspente sous l'effet de brusques accélérations verticales descendantes s'exerçant sur la tubulure d'échappement, par exemple du fait des cahots de la route. I1 sera en principe constitué d'un matériau à module d'élasticité relativement élevé, comme la rayonne, l'acier, les fibres de verre, etc. As for the limiter ring, its role is to limit the maximum extension of the hanger under the effect of abrupt downward vertical accelerations exerted on the exhaust manifold, for example due to bumps in the road. It will in principle be made of a material with a relatively high modulus of elasticity, such as rayon, steel, glass fibers, etc.

On connaît déjà des suspentes répondant à cette définition générale, suspentes dans lesquelles l'anneau limiteur entoure non seulement lesdits axes, mais encore le corps amortisseur lui-même, donc avec interposition de la matière élastique de ce corps. I1 en résulte que la raideur en extension de la suspente n1 augmente pas suffisamment brusquement en cas de brusque accélération verticale descendante de la tubulure, pour avoir pleinement son effet limiteur. There are already known lines corresponding to this general definition, lines in which the limiting ring surrounds not only said axes, but also the damping body itself, therefore with the interposition of the elastic material of this body. I1 follows that the stiffness in extension of the hanger does not increase sharply enough in the event of sudden downward vertical acceleration of the tubing, to have its limiting effect fully.

Le but de la présente invention est de remédier à cet inconvénient, et de permettre une meilleure séparation entre les deux fonctions de la suspente, à savoir les fonctions d'amortissement des vibrations et de limitation des débattements de la suspente d'échappement. The object of the present invention is to remedy this drawback, and to allow a better separation between the two functions of the hanger, namely the functions of damping vibrations and limiting the deflections of the exhaust hanger.

A cet effet, une suspente du type défini au début est, conformément à la présente invention, caractérisée en ce que ledit anneau limiteur est relié latéralement audit corps amortisseur et entoure directement lesdits axes, de sorte qu'il se trouve en parallèle par rapport audit corps. To this end, a hanger of the type defined at the start is, in accordance with the present invention, characterized in that said limiting ring is connected laterally to said damping body and directly surrounds said axes, so that it is in parallel with respect to said body.

Pour les applications courantes, on pourra prévoir que la raideur statique en traction dudit corps élastique est d'environ 5 à 25 N/mm, et la raideur statique en traction dudit anneau limiteur est d'environ 50 à 100 N/mm dans sa plage d'intervention. For current applications, provision may be made for the static tensile stiffness of said elastic body to be approximately 5 to 25 N / mm, and the static tensile stiffness of said limiting ring to be approximately 50 to 100 N / mm in its range. intervention.

Sur le plan de la réalisation pratique, on pourra prévoir par ailleurs que ledit anneau limiteur est relié audit corps amortisseur par des barrettes élastiques, par exemple par des barrettes moulées en même temps que le matériau élastique constituant le corps amortisseur, ce matériau élastique pouvant aussi enrober totalement les fibres ou autres constituant l'anneau, mais sous une très faible épaisseur. In terms of practical implementation, provision may also be made for said limiting ring to be connected to said damping body by elastic bars, for example by bars molded at the same time as the elastic material constituting the damping body, this elastic material also being able to completely coat the fibers or other components of the ring, but with a very small thickness.

L'invention va maintenant être expliquée à titre d'exemple nullement limitatif, avec référence aux figures du dessin annexé dans lequel
- la figure 1 est un graphique montrant l'allure de la courbe représentative de l'extension axiale d'une suspente actuelle, du type mentionné dans ce qui précède, en fonction des efforts axiaux de compression et de traction qui s'exercent sur elle
- la figure 2 est une vue de profil d'une suspente pour tubulure d'échappement conforme à l'invention
- la figure 3 est une vue de la même suspente en perspective
- la figure 4a est une vue de face de l'anneau limiteur seul et non soumis à des efforts
- la figure 4b est une vue de face du même anneau lorsqu'il commence à être soumis à des efforts d'extension maxima ; et
- la figure 4c est un graphique du même type que celui de la figure 1, montrant les caractéristiques de raideur de l'anneau limiteur seul.The invention will now be explained by way of non-limiting example, with reference to the figures in the appended drawing in which
- Figure 1 is a graph showing the shape of the curve representative of the axial extension of a current hanger, of the type mentioned in the foregoing, as a function of the axial compression and traction forces exerted on it
- Figure 2 is a side view of a hanger for exhaust manifold according to the invention
- Figure 3 is a view of the same hanger in perspective
- Figure 4a is a front view of the limiting ring alone and not subjected to forces
- Figure 4b is a front view of the same ring when it begins to be subjected to maximum extension forces; and
- Figure 4c is a graph of the same type as that of Figure 1, showing the stiffness characteristics of the limiting ring alone.

A la figure 1, on a représenté en abscisses les déplacements verticaux d d'une tubulure d'échappement supposée suspendue en un point fixe, en fonction des efforts verticaux Z, représentés en ordonnées, et s'exerçant sur cette tubulure : dans la zone d'extension correspondant aux abscisses positives, on voit que la courbe représentative de la raideur de la suspente comporte une zone utile ZU dont la pente est d'environ 5 à 25 N/mm, suivie d'une zone TRAC à plus forte raideur en traction, dont la pente est d'environ 50 à 100 N/mm, ceci pour une charge statique qui peut être comprise entre 50 et 150 N. Dans la zone située à gauche de l'axe des ordonnées, qui correspond à une compression de la suspente sous l'effet des accélérations verticales et ascendantes s'exerçant sur la tubulure d'échappement, des zones de butée de la suspente permettent d'obtenir une raideur en compression du même ordre de grandeur que dans la zone TRAC précitée, à savoir de l'ordre de 50 à 100 N/mm. In FIG. 1, the vertical displacements d of an exhaust pipe assumed to be suspended at a fixed point are shown on the abscissa, as a function of the vertical forces Z, represented on the ordinate, and acting on this pipe: in the zone extension corresponding to the positive abscissae, we see that the curve representative of the stiffness of the hanger comprises a useful zone ZU whose slope is approximately 5 to 25 N / mm, followed by a TRAC zone with higher stiffness in traction, the slope of which is approximately 50 to 100 N / mm, this for a static load which can be between 50 and 150 N. In the zone situated to the left of the ordinate axis, which corresponds to a compression of the hanger under the effect of the vertical and ascending accelerations acting on the exhaust manifold, the abutment zones of the hanger make it possible to obtain a stiffness in compression of the same order of magnitude as in the aforementioned TRAC zone, namely around 50 at 100 N / mm.

I1 s'agit là d'une allure théorique de la réponse en raideur de ces suspentes de l'art connu, qui en réalité présente un changement de pente trop progressif entre la zone ZU à faible pente et la zone suivante TRAC à plus forte pente. This is a theoretical appearance of the stiffness response of these lines of the prior art, which in reality presents a too gradual change in slope between the zone ZU with a slight slope and the following zone TRAC with a steeper slope. .

Comme cela est expliqué plus haut, cela est dû au fait que l'anneau limiteur n'entoure pas directement les axes d'accrochage de la suspente, du caoutchouc ou autre matière élastique constituant le corps amortisseur étant interposé entre les axes d'accrochage et l'anneau limiteur. As explained above, this is due to the fact that the limiting ring does not directly surround the attachment axes of the hanger, rubber or other elastic material constituting the damping body being interposed between the attachment axes and the limiting ring.

L'invention permet de remédier à cet inconvénient en prévoyant un anneau limiteur 1 n'entourant pas le corps amortisseur 2, et par conséquent monté en parallèle sur ce corps, comme ceci a été représenté sur les figures 2 et 3. The invention makes it possible to remedy this drawback by providing a limiting ring 1 which does not surround the damping body 2, and consequently mounted in parallel on this body, as has been shown in FIGS. 2 and 3.

Comme visible également sur ces figures, l'anneau limiteur 1 est relié latéralement au corps amortisseur 2 par des barrettes élastiques 3 qui peuvent être avantageusement moulées en même temps que le corps amortisseur 2, la matière moulée pouvant être notamment un élastomère naturel ou synthétique constituant en même temps un léger revêtement pour l'ensemble de l'anneau. On voit sur la vue en perspective de la figure 3 que l'anneau limiteur 1 porte des oeillets 4 qui peuvent par exemple être également moulés en la même matière que celle constituant le corps 2, et qui constituent des passages pour deux axes A, à savoir un axe permettant la liaison de la suspente 1-2 à la caisse d'un véhicule et un axe permettant sa liaison à la tubulure d'échappement.As can also be seen in these figures, the limiting ring 1 is connected laterally to the damping body 2 by elastic bars 3 which can advantageously be molded at the same time as the damping body 2, the molded material possibly being in particular a natural or synthetic elastomer constituting at the same time a light coating for the entire ring. We see in the perspective view of Figure 3 that the limiter ring 1 carries eyelets 4 which can for example also be molded from the same material as that constituting the body 2, and which constitute passages for two axes A, to know an axis allowing the connection of the line 1-2 to the body of a vehicle and an axis allowing its connection to the exhaust manifold.

De la sorte, l'amortissement de la suspente sera normalement assuré pratiquement par le seul corps amortisseur 2, et la limitation maximale de l'extension verticale par le seul anneau limiteur 1, dont l'action limitatrice sur l'écartement vertical des deux axes A précités sera beaucoup plus directe que dans les suspentes de l'art antérieur, puisque sans interposition de matériaux élastiques entre l'anneau limiteur 1 et les axes d'accrochage en question. In this way, the damping of the hanger will normally be ensured practically by the single damping body 2, and the maximum limitation of the vertical extension by the single limiting ring 1, whose limiting action on the vertical spacing of the two axes A above will be much more direct than in the lines of the prior art, since without the interposition of elastic materials between the limiting ring 1 and the attachment pins in question.

La figure 4a montre l'anneau limiteur en cours de fonctionnement normal, et la figure 4b lorsqu'il commence à être soumis à l'extension maximale, et qu'il assure alors sa fonction de limiteur. FIG. 4a shows the limiter ring during normal operation, and FIG. 4b when it begins to be subjected to the maximum extension, and that it then performs its function of limiter.

La figure 4c montre les caractéristiques de raideur de cet anneau limiteur : très faible raideur dans la zone
OP, avec accroissement brutal de la raideur dans la zone suivante PQ. Ce graphique montre que l'anneau limiteur 1 n'intervient donc que très faiblement dans la rigidité totale de la suspente tant qu'il n'a pas atteint la déformation maximale représentée à la figure 4b, et qu'il permet, à partir de ce moment, lorsqu'il entre en fonction, d'obtenir une transition de raideur très brutale.Figure 4c shows the stiffness characteristics of this limiting ring: very low stiffness in the area
OP, with sudden increase in stiffness in the next zone PQ. This graph shows that the limiting ring 1 therefore only plays a very minor role in the total rigidity of the hanger as long as it has not reached the maximum deformation shown in FIG. 4b, and that it allows, from this moment, when it comes into operation, to obtain a very brutal stiffness transition.

L'invention présente les avantages supplémentaires de faciliter le réglage du début de la limitation en traction, du fait même de l'absence d'interaction entre l'anneau limiteur 1 et le corps amortisseur 2. The invention has the additional advantages of facilitating the adjustment of the start of the limitation in traction, by the very fact of the absence of interaction between the limiting ring 1 and the damping body 2.

D'autre part, on comprend que cette structure de l'invention permet de réduire notablement l'encombrement en hauteur de la suspente, puisque l'anneau limitateur se présente en parallèle sur le corps amortisseur, au lieu d'entourer ce dernier.  On the other hand, it is understood that this structure of the invention makes it possible to significantly reduce the overall height of the hanger, since the limiting ring is present in parallel on the damping body, instead of surrounding the latter.

Claims (4)

REVENDICATIONS 1. Suspente pour tubulure d'échappement de véhicule automobile, du type comportant d'une part un corps élastique (2) amortisseur des vibrations traversé par deux axes (A), savoir un axe permettant sa liaison à la caisse du véhicule et un axe permettant sa liaison à ladite tubulure, ce corps (2) présentant lors de son extension entre les deux dits axes (A) une raideur statique en traction relativement faible, et d'autre part un anneau limiteur (1) passant autour desdits axes (A), constitué d'un matériau à module d'élasticité relativement élevé et présentant lors de son extension entre eux une raideur statique en traction notablement plus élevée que la précédente, caractérisée en ce que ledit anneau limiteur (1) est relié latéralement audit corps amortisseur (2) et entoure directement lesdits axes (A), de sorte qu'il se trouve en parallèle par rapport audit corps (2). 1. Hanger for exhaust pipe of a motor vehicle, of the type comprising on the one hand an elastic body (2) damping vibrations crossed by two axes (A), namely an axis allowing its connection to the vehicle body and an axis allowing its connection to said tubing, this body (2) having, when extended between the two said axes (A) a relatively low static stiffness in tension, and on the other hand a limiting ring (1) passing around said axes (A ), made of a material with relatively high modulus of elasticity and having, when extended between them, a static stiffness in traction significantly higher than the previous one, characterized in that said limiting ring (1) is connected laterally to said damping body (2) and directly surrounds said axes (A), so that it is in parallel with respect to said body (2). 2. Suspente selon la revendication 1, caractérisée en ce que la raideur statique en traction dudit corps élastique (2) est d'environ 5 à 25 N/mm, et la raideur statique en traction dudit anneau (1) limiteur est d'environ 50 à 100 N/mm dans sa plage d'intervention. 2. Hanger according to claim 1, characterized in that the static tensile stiffness of said elastic body (2) is approximately 5 to 25 N / mm, and the static tensile stiffness of said limiting ring (1) is approximately 50 to 100 N / mm in its intervention range. 3. Suspente selon la revendication 1 ou 2, caractérisée en ce que ledit anneau limiteur (1) est relié audit corps amortisseur par des barrettes élastiques (3). 3. Hanger according to claim 1 or 2, characterized in that said limiting ring (1) is connected to said damping body by elastic bars (3). 4. Suspente selon la revendication 3, caractérisée en ce que lesdites barrettes élastiques (3) sont moulées en même temps que ledit corps amortisseur (2), de même qu'un léger revêtement de l'anneau (1).  4. Hanger according to claim 3, characterized in that said elastic bars (3) are molded at the same time as said damping body (2), as well as a light coating of the ring (1).
FR9606280A 1996-05-21 1996-05-21 SUSPENSION FOR MOTOR VEHICLE EXHAUST TUBING Expired - Fee Related FR2749052B1 (en)

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FR9606280A FR2749052B1 (en) 1996-05-21 1996-05-21 SUSPENSION FOR MOTOR VEHICLE EXHAUST TUBING

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FR2749052B1 FR2749052B1 (en) 1998-12-18

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2905726A1 (en) * 2006-09-13 2008-03-14 Faurecia Sys Echappement Exhaust line for heat engine of motor vehicle, has decoupler presenting dynamic stiffness lower than specific value on specific frequency range, and shroud lines presenting transversal, vertical and static stiffness between specific values
CN104029593A (en) * 2014-04-29 2014-09-10 宁国市日格美橡塑制品有限公司 Connection piece for connecting exhaust pipe and chassis of automobile

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0481836A1 (en) * 1990-10-16 1992-04-22 Caoutchouc Manufacture Et Plastiques Tensioning device for belt tensioning idler, functioning by elastic deformation of a parallel epipedic body
EP0505325A1 (en) * 1991-02-15 1992-09-23 IVECO FIAT S.p.A. An exhaust-pipe mounting for commercial vehicles
FR2674800A1 (en) * 1991-04-08 1992-10-09 Hutchinson Exhaust pipe suspension device for a vehicle
EP0509918A1 (en) * 1991-04-18 1992-10-21 Hutchinson Elastic device for the suspension of a vibrating structure from a rigid structure
EP0670233A2 (en) * 1994-03-02 1995-09-06 HENNIGES ELASTOMER- UND KUNSTSTOFFTECHNIK GMBH & CO KG Resilient mounting of parts on motor vehicles

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0481836A1 (en) * 1990-10-16 1992-04-22 Caoutchouc Manufacture Et Plastiques Tensioning device for belt tensioning idler, functioning by elastic deformation of a parallel epipedic body
EP0505325A1 (en) * 1991-02-15 1992-09-23 IVECO FIAT S.p.A. An exhaust-pipe mounting for commercial vehicles
FR2674800A1 (en) * 1991-04-08 1992-10-09 Hutchinson Exhaust pipe suspension device for a vehicle
EP0509918A1 (en) * 1991-04-18 1992-10-21 Hutchinson Elastic device for the suspension of a vibrating structure from a rigid structure
EP0670233A2 (en) * 1994-03-02 1995-09-06 HENNIGES ELASTOMER- UND KUNSTSTOFFTECHNIK GMBH & CO KG Resilient mounting of parts on motor vehicles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2905726A1 (en) * 2006-09-13 2008-03-14 Faurecia Sys Echappement Exhaust line for heat engine of motor vehicle, has decoupler presenting dynamic stiffness lower than specific value on specific frequency range, and shroud lines presenting transversal, vertical and static stiffness between specific values
CN104029593A (en) * 2014-04-29 2014-09-10 宁国市日格美橡塑制品有限公司 Connection piece for connecting exhaust pipe and chassis of automobile

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