EP0767354A1 - Heat exchanger, more particularly supercharge air cooler for automotive vehicle - Google Patents

Heat exchanger, more particularly supercharge air cooler for automotive vehicle Download PDF

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Publication number
EP0767354A1
EP0767354A1 EP96115937A EP96115937A EP0767354A1 EP 0767354 A1 EP0767354 A1 EP 0767354A1 EP 96115937 A EP96115937 A EP 96115937A EP 96115937 A EP96115937 A EP 96115937A EP 0767354 A1 EP0767354 A1 EP 0767354A1
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EP
European Patent Office
Prior art keywords
heat exchanger
collar
wall
collector plate
tubes
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
EP96115937A
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German (de)
French (fr)
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EP0767354B1 (en
Inventor
Jean-Louis Laveran
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.)
Valeo Thermique Moteur SA
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Valeo Thermique Moteur SA
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Application filed by Valeo Thermique Moteur SA filed Critical Valeo Thermique Moteur SA
Publication of EP0767354A1 publication Critical patent/EP0767354A1/en
Application granted granted Critical
Publication of EP0767354B1 publication Critical patent/EP0767354B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/051—Heat exchange having expansion and contraction relieving or absorbing means

Definitions

  • the invention relates to a heat exchanger which can be produced in particular in the form of a charge air radiator for a motor vehicle.
  • the heat exchanger of the invention is of the type comprising a collecting plate which has a wall in which are provided holes suitable for receiving the ends of the tubes of a bundle, the wall of the collecting plate being configured so as to form collars around the holes for a connection by brazing with the tubes.
  • the collecting plate is capped by a collecting box so as to provide a chamber capable of being traversed by a fluid which also circulates in the tubes of the bundle.
  • two manifolds are provided respectively at the two ends of the tube bundle.
  • the tubes are traversed by a fluid which can undergo significant temperature differences which consequently cause significant differences in expansion.
  • the object of the invention is in particular to overcome this drawback.
  • the collar is connected to the rest of the collector plate by a region where the wall of the collector plate is thinned, which allows deformation of the wall and, consequently, an axial movement of the collet.
  • the collar follows the movement of the end of the tube as a function of the differences in thermal expansion.
  • solder is no longer subjected to stresses and no longer risks causing leaks at the connection between the collar and the end of the tube.
  • this localized thinning is carried out in an annular region which has a shape homologous to that of the collar.
  • Each collar is advantageously attached to the rest of the collector plate by an annular fold having a substantially U-shaped section and having a branch which constitutes the collar and another branch which constitutes a connecting branch.
  • this localized thinning is carried out by stamping or removal of material, either on one face of the wall of the collector plate, or on both sides of the wall of the collector plate.
  • the invention applies in particular to a heat exchanger in which the header plate and the tubes are made of aluminum.
  • the localized thinning is carried out in an elongated region, homologous to that of the collar.
  • the heat exchanger of the invention is particularly feasible in the form of a charge air radiator intended to cool an air flow supplying a turbocharged engine.
  • the heat exchanger shown in Figures 1 and 2 comprises a header plate 10 which has a generally rectangular core 12 provided with two longitudinal edges 14 folded substantially at right angles, to allow the header plate 10 to be capped by a manifold wall (not shown) and define a clean room to be traversed by a fluid.
  • the collector plate 10 has a metal wall 16, for example made of aluminum, which is stamped to form the core 12 and the longitudinal edges 14.
  • a plurality of holes 18 which, in the example, have a substantially rectangular oblong shape whose length extends transversely to the core 12, that is to say perpendicular to the longitudinal edges 14.
  • the holes 18 are arranged in a single row and are regularly spaced apart.
  • Each hole 18 is suitable for receiving one end 20 of a tube 22, in the example a "flat tube", which has an external section adapted to that of the internal section of the hole 18.
  • the tubes 22 are metallic, for example made of aluminum, and their ends 20 are intended to be connected by brazing to the wall 16 of the collector plate 10.
  • each hole 18 is bordered by a collar 24 obtained by deformation of the wall 16. This collar extends over an axial length greater than the thickness of the wall 16 to allow better connection by brazing between the end of the tube and the collector plate.
  • this heat exchanger is used as a charge air radiator
  • the tubes 22 are traversed by an air flow which can undergo significant temperature variations, from which it results in variations in the expansion of the tube may cause stress at the solder connection between the end of the tube and the corresponding collar.
  • the invention provides means for allowing the clearance of the collar relative to the core 12 of the collector plate.
  • each collar 24 is attached to the core 12, that is to say to the rest of the collector plate 10, by an annular fold 26 which has a contour homologous to that of the collar and which has, in section, substantially the shape of a U.
  • This U has a first branch which constitutes the collar and another branch 28 which constitutes a branch for attachment to the core 12.
  • This branch 28 has localized thinning A at which the thickness of the wall of the plate is less only at the level of the soul 12.
  • this localized thinning is obtained by stamping or removal of material from the outer face 30 of the collecting plate 10, while its inner face 32 has not undergone removal of material .
  • the configuration of the collector plate is substantially identical to that of FIG. 3.
  • the only difference is that the thinning A has a reduced thickness.
  • the collar 24 may be struggling, in the direction of arrow F, relative to the core 12 of the made of the thinning A produced in the thickness of the wall and in an annular region surrounding the collar.
  • soldering connection (not shown) between the end 20 of the tube and the collar 24 will not undergo stresses likely to cause cracking or rupture of the solder.

Abstract

The heat exchanger has a collector plate (10) with a wall. The wall has apertures (18) to receive the ends of the heat exchanger tubes. The wall is shaped to form collets (24) surrounding the apertures, to which the tubes are brazed. The wall is made with thin sections (A) in a selected region (28) surrounding each collet. This allows axial movement of the collet relative to the rest of the plate under the effect of variations in tube length as a result of thermal expansion fluctuations. The thin sections of the wall follow the shape of the collets. Each collet is connected to the rest of the plate by an annular fold (26) with a U-shaped cross-section, having one side which forms the collet and the other the connecting pipe. The collector plate and the tubes are both made from aluminium. The thin sections are made by moulding or removing material from one or both sides of the plate.

Description

L'invention concerne un échangeur de chaleur pouvant être réalisé en particulier sous la forme d'un radiateur d'air de suralimentation pour véhicule automobile.The invention relates to a heat exchanger which can be produced in particular in the form of a charge air radiator for a motor vehicle.

L'échangeur de chaleur de l'invention est du type comprenant une plaque collectrice qui présente une paroi dans laquelle sont ménagés des trous propres à recevoir les extrémités des tubes d'un faisceau, la paroi de la plaque collectrice étant configurée de manière à former des collets autour des trous en vue d'une liaison par brasage avec les tubes.The heat exchanger of the invention is of the type comprising a collecting plate which has a wall in which are provided holes suitable for receiving the ends of the tubes of a bundle, the wall of the collecting plate being configured so as to form collars around the holes for a connection by brazing with the tubes.

Dans les échangeurs de chaleur de ce type, la plaque collectrice est coiffée par une boîte collectrice de manière à fournir une chambre propre à être parcourue par un fluide qui circule également dans les tubes du faisceau.In heat exchangers of this type, the collecting plate is capped by a collecting box so as to provide a chamber capable of being traversed by a fluid which also circulates in the tubes of the bundle.

Habituellement, on prévoit deux boîtes collectrices respectivement aux deux extrémités du faisceau de tubes.Usually, two manifolds are provided respectively at the two ends of the tube bundle.

Pour certains types d'échangeurs de chaleur, notamment dans le cas de radiateurs d'air de suralimentation, les tubes sont parcourus par un fluide qui peut subir des écarts de température importants qui entraînent par conséquent des différences de dilatation importantes.For certain types of heat exchangers, in particular in the case of charge air radiators, the tubes are traversed by a fluid which can undergo significant temperature differences which consequently cause significant differences in expansion.

Ces différences de dilatation peuvent engendrer des contraintes au niveau de la liaison par brasage entre les extrémités des tubes et la plaque collectrice. Ces contraintes peuvent même engendrer une rupture de la liaison, d'où un risque de fuites.These differences in expansion can generate stresses at the brazing connection between the ends of the tubes and the collector plate. These stresses can even cause a break in the connection, hence a risk of leaks.

L'invention a notamment pour but de surmonter cet inconvénient.The object of the invention is in particular to overcome this drawback.

Elle propose en conséquence un échangeur de chaleur du type défini en introduction, dans lequel la paroi de la plaque collectrice présente un amincissement localisé dans une région choisie entourant chaque collet pour permettre un débattement axial du collet par rapport au reste de la plaque collectrice sous l'effet des variations de longueur du tube par suite de différences de dilatation thermique.It therefore proposes a heat exchanger of the type defined in the introduction, in which the wall of the collector plate has a localized thinning in a selected region surrounding each collar to allow axial displacement of the collar relative to the rest of the collector plate under the effect of variations in tube length due to differences in thermal expansion.

Ainsi, le collet est raccordé au reste de la plaque collectrice par une région où la paroi de la plaque collectrice est amincie, ce qui permet une déformation de la paroi et, par conséquent, un débattement axial du collet.Thus, the collar is connected to the rest of the collector plate by a region where the wall of the collector plate is thinned, which allows deformation of the wall and, consequently, an axial movement of the collet.

De ce fait, le collet suit le déplacement de l'extrémité du tube en fonction des différences de dilatation thermique.Therefore, the collar follows the movement of the end of the tube as a function of the differences in thermal expansion.

En conséquence, la brasure ne subit plus de contraintes et ne risque plus d'entraîner de fuites au niveau du raccordement entre le collet et l'extrémité du tube.Consequently, the solder is no longer subjected to stresses and no longer risks causing leaks at the connection between the collar and the end of the tube.

Selon une autre caractéristique de l'invention, cet amincissement localisé est réalisé dans une région annulaire qui présente une forme homologue de celle du collet.According to another characteristic of the invention, this localized thinning is carried out in an annular region which has a shape homologous to that of the collar.

Chaque collet se rattache avantageusement au reste de la plaque collectrice par un pli annulaire ayant sensiblement une section en U et présentant une branche qui constitue le collet et une autre branche qui constitue une branche de rattachement.Each collar is advantageously attached to the rest of the collector plate by an annular fold having a substantially U-shaped section and having a branch which constitutes the collar and another branch which constitutes a connecting branch.

En pareil cas, cet amincissement localisé est réalisé dans cette branche de rattachement.In such a case, this localized thinning is achieved in this branch of attachment.

Selon une autre caractéristique de l'invention, cet amincissement localisé est effectué par matriçage ou enlèvement de matière, soit sur une face de la paroi de la plaque collectrice, soit sur les deux faces de la paroi de la plaque collectrice.According to another characteristic of the invention, this localized thinning is carried out by stamping or removal of material, either on one face of the wall of the collector plate, or on both sides of the wall of the collector plate.

L'invention s'applique en particulier à un échangeur de chaleur dans lequel la plaque collectrice et les tubes sont en aluminium.The invention applies in particular to a heat exchanger in which the header plate and the tubes are made of aluminum.

Dans une forme de réalisation de l'invention, dans laquelle le collet a une forme allongée propre à recevoir un tube plat, l'amincissement localisé est effectué dans une région de forme allongée, homologue de celle du collet.In one embodiment of the invention, in which the collar has an elongated shape suitable for receiving a flat tube, the localized thinning is carried out in an elongated region, homologous to that of the collar.

L'échangeur de chaleur de l'invention est particulièrement réalisable sous la forme d'un radiateur d'air de suralimentation destiné à refroidir un flux d'air alimentant un moteur turbocompressé.The heat exchanger of the invention is particularly feasible in the form of a charge air radiator intended to cool an air flow supplying a turbocharged engine.

Dans la description qui suit, faite seulement à titre d'exemple, on se réfère aux dessins annexés, sur lesquels :

  • la figure 1 est une vue partielle en perspective d'un échangeur de chaleur selon l'invention;
  • la figure 2 est une vue analogue à celle de la figure 1, avec coupe selon la ligne II-II de la figure 1;
  • la figure 3 est une vue en coupe partielle d'une plaque collectrice dans une première forme de réalisation; et
  • la figure 4 est une vue en coupe partielle d'une plaque collectrice selon une autre forme de réalisation.
In the description which follows, given solely by way of example, reference is made to the appended drawings, in which:
  • Figure 1 is a partial perspective view of a heat exchanger according to the invention;
  • Figure 2 is a view similar to that of Figure 1, with section along line II-II of Figure 1;
  • Figure 3 is a partial sectional view of a header plate in a first embodiment; and
  • Figure 4 is a partial sectional view of a header plate according to another embodiment.

L'échangeur de chaleur représenté aux figures 1 et 2 comprend une plaque collectrice 10 qui présente une âme 12 de forme générale rectangulaire munie de deux bords longitudinaux 14 repliés sensiblement à angle droit, pour permettre à la plaque collectrice 10 d'être coiffée par une paroi de boîte collectrice (non représentée) et délimiter une chambre propre à être parcourue par un fluide.The heat exchanger shown in Figures 1 and 2 comprises a header plate 10 which has a generally rectangular core 12 provided with two longitudinal edges 14 folded substantially at right angles, to allow the header plate 10 to be capped by a manifold wall (not shown) and define a clean room to be traversed by a fluid.

La plaque collectrice 10 comporte une paroi métallique 16, par exemple en aluminium, qui est emboutie pour former l'âme 12 et les bords longitudinaux 14.The collector plate 10 has a metal wall 16, for example made of aluminum, which is stamped to form the core 12 and the longitudinal edges 14.

Par ailleurs, dans l'âme 12 sont ménagés une pluralité de trous 18 qui, dans l'exemple, ont une forme oblongue sensiblement rectangulaire dont la longueur s'étend transversalement à l'âme 12, c'est-à-dire perpendiculairement aux bords longitudinaux 14.Furthermore, in the core 12 are formed a plurality of holes 18 which, in the example, have a substantially rectangular oblong shape whose length extends transversely to the core 12, that is to say perpendicular to the longitudinal edges 14.

Les trous 18 sont disposés suivant-une seule rangée et sont régulièrement espacés entre eux.The holes 18 are arranged in a single row and are regularly spaced apart.

Chaque trou 18 est propre à recevoir une extrémité 20 d'un tube 22, dans l'exemple un "tube plat", qui présente une section externe adaptée à celle de la section interne du trou 18.Each hole 18 is suitable for receiving one end 20 of a tube 22, in the example a "flat tube", which has an external section adapted to that of the internal section of the hole 18.

Les tubes 22 sont métalliques, par exemple en aluminium, et leurs extrémités 20 sont destinées à être reliées par brasage à la paroi 16 de la plaque collectrice 10.The tubes 22 are metallic, for example made of aluminum, and their ends 20 are intended to be connected by brazing to the wall 16 of the collector plate 10.

Pour faciliter cette liaison, chaque trou 18 est bordé par un collet 24 obtenu par déformation de la paroi 16. Ce collet s'étend sur une longueur axiale supérieure à l'épaisseur de la paroi 16 pour permettre une meilleure liaison par brasage entre l'extrémité du tube et la plaque collectrice.To facilitate this connection, each hole 18 is bordered by a collar 24 obtained by deformation of the wall 16. This collar extends over an axial length greater than the thickness of the wall 16 to allow better connection by brazing between the end of the tube and the collector plate.

Dans l'exemple où cet échangeur de chaleur est utilisé comme radiateur d'air de suralimentation, les tubes 22 sont parcourus par un flux d'air qui peut subir des variations de température importantes, d'où il résulte des variations de dilatation du tube pouvant entraîner une contrainte au niveau de la liaison par brasure entre l'extrémité du tube et le collet correspondant.In the example where this heat exchanger is used as a charge air radiator, the tubes 22 are traversed by an air flow which can undergo significant temperature variations, from which it results in variations in the expansion of the tube may cause stress at the solder connection between the end of the tube and the corresponding collar.

Pour éviter cet inconvénient, l'invention prévoit des moyens pour permettre un débattement du collet par rapport à l'âme 12 de la plaque collectrice.To avoid this drawback, the invention provides means for allowing the clearance of the collar relative to the core 12 of the collector plate.

Dans la forme de réalisation de la figure 3, à laquelle on se réfère maintenant, chaque collet 24 se rattache à l'âme 12, c'est-à-dire au reste de la plaque collectrice 10, par un pli annulaire 26 qui présente un contour homologue de celui du collet et qui présente, en section, sensiblement la forme d'un U.In the embodiment of Figure 3, to which we now refer, each collar 24 is attached to the core 12, that is to say to the rest of the collector plate 10, by an annular fold 26 which has a contour homologous to that of the collar and which has, in section, substantially the shape of a U.

Ce U comporte une première branche qui constitue le collet et une autre branche 28 qui constitue une branche de rattachement à l'âme 12. Cette branche 28 présente un amincissement localisé A au niveau duquel l'épaisseur de la paroi de la plaque est plus faible qu'au niveau de l'âme 12.This U has a first branch which constitutes the collar and another branch 28 which constitutes a branch for attachment to the core 12. This branch 28 has localized thinning A at which the thickness of the wall of the plate is less only at the level of the soul 12.

Dans la forme de réalisation de la figure 3, cet amincissement localisé est obtenu par matriçage ou enlèvement de matière à partir de la face extérieure 30 de la plaque collectrice 10, alors que sa face intérieure 32 n'a pas subi d'enlèvement de matière.In the embodiment of FIG. 3, this localized thinning is obtained by stamping or removal of material from the outer face 30 of the collecting plate 10, while its inner face 32 has not undergone removal of material .

Dans la forme de réalisation de la figure 4, à laquelle on se réfère maintenant, la configuration de la plaque collectrice est sensiblement identique à celle de la figure 3.In the embodiment of FIG. 4, to which we now refer, the configuration of the collector plate is substantially identical to that of FIG. 3.

La seule différence réside dans le fait que l'amincissement A présente une épaisseur plus réduite.The only difference is that the thinning A has a reduced thickness.

Ceci résulte du fait qu'un enlèvement de matière supplémentaire a été effectué à partir de la face intérieur 32, comme montré par une gorge annulaire 34 qui entoure le collet 24.This results from the fact that an additional material removal has been carried out from the internal face 32, as shown by an annular groove 34 which surrounds the collar 24.

Dans l'une ou l'autre des formes de réalisation précédentes, si le tube 22 se dilate dans le sens de la longueur, le collet 24 pourra se débattre, dans la direction de la flèche F, par rapport à l'âme 12 du fait de l'amincissement A réalisé dans l'épaisseur de la paroi et dans une région annulaire entourant le collet.In either of the previous embodiments, if the tube 22 expands lengthwise, the collar 24 may be struggling, in the direction of arrow F, relative to the core 12 of the made of the thinning A produced in the thickness of the wall and in an annular region surrounding the collar.

Il en résulte que la liaison par brasage (non représentée) entre l'extrémité 20 du tube et le collet 24 ne subira pas de contraintes susceptibles d'entraîner une fissuration ou une rupture de la brasure.As a result, the soldering connection (not shown) between the end 20 of the tube and the collar 24 will not undergo stresses likely to cause cracking or rupture of the solder.

Bien entendu, l'invention n'est pas limitée à la forme de réalisation décrite précédemment à titre d'exemple.Of course, the invention is not limited to the embodiment described above by way of example.

Elle s'applique en particulier à d'autres types d'échangeurs de chaleur présentant des tubes de sections différentes et pouvant être utilisés dans d'autres applications que les radiateurs d'air de suralimentation.It applies in particular to other types of heat exchangers having tubes of different sections and which can be used in other applications than charge air radiators.

Claims (8)

Echangeur de chaleur du type comprenant une plaque collectrice (10) qui présente une paroi (16) dans laquelle sont ménagés des trous (18) propres à recevoir les extrémités (20) des tubes (22) d'un faisceau, la paroi de la plaque collectrice étant configurée de manière à former des collets (24) autour des trous (18) en vue d'une liaison par brasage avec les tubes (20),
caractérisé en ce que la paroi (16) de la plaque collectrice présente un amincissement localisé (A) dans une région choisie (28) entourant chaque collet (24) pour permettre un débattement axial du collet par rapport au reste de la plaque collectrice (10) sous l'effet des variations de longueur du tube par suite de différences de dilatation thermique.Heat exchanger of the type comprising a collecting plate (10) which has a wall (16) in which are formed holes (18) suitable for receiving the ends (20) of the tubes (22) of a bundle, the wall of the collector plate being configured so as to form collars (24) around the holes (18) for connection by soldering with the tubes (20),
characterized in that the wall (16) of the collector plate has localized thinning (A) in a selected region (28) surrounding each collar (24) to allow axial movement of the collar relative to the rest of the collector plate (10 ) under the effect of variations in tube length due to differences in thermal expansion. Echangeur de chaleur selon la revendication 1, caractérisé en ce que l'amincissement localisé (A) est réalisé dans une région annulaire (28) qui présente une forme homologue de celle du collet (24).Heat exchanger according to claim 1, characterized in that the localized thinning (A) is carried out in an annular region (28) which has a shape homologous to that of the collar (24). Echangeur de chaleur selon l'une des revendications 1 et 2, dans lequel chaque collet (24) se rattache au reste de la plaque collectrice (10) par un pli annulaire (26) ayant sensiblement la forme d'un U ayant une branche qui constitue le collet et une autre branche (28) qui constitue une branche de rattachement, caractérisé en ce que l'amincissement localisé (A) est réalisé dans cette branche de rattachement (28).Heat exchanger according to one of claims 1 and 2, wherein each collar (24) is connected to the rest of the collector plate (10) by an annular fold (26) having substantially the shape of a U having a branch which constitutes the collar and another branch (28) which constitutes a connecting branch, characterized in that the localized thinning (A) is carried out in this connecting branch (28). Echangeur de chaleur selon l'une des revendications 1 à 3, caractérisé en ce que l'amincissement localisé (A) est effectué par matriçage ou enlèvement de matière sur une face (30) de la paroi (16) de la plaque collectrice (10).Heat exchanger according to one of claims 1 to 3, characterized in that the localized thinning (A) is carried out by stamping or removal of material on one face (30) of the wall (16) of the collector plate (10 ). Echangeur de chaleur selon l'une des revendications 1 à 3, caractérisé en ce que l'amincissement localisé (A) est effectué par matriçage ou enlèvement de matière sur les deux faces (30, 32) de la plaque collectrice (10).Heat exchanger according to one of claims 1 to 3, characterized in that the localized thinning (A) is carried out by stamping or removal of material on the two faces (30, 32) of the collecting plate (10). Echangeur de chaleur selon l'une des revendications 1 à 5, caractérisé en ce que la plaque collectrice (10) et les tubes (22) sont en aluminium.Heat exchanger according to one of claims 1 to 5, characterized in that the collector plate (10) and the tubes (22) are made of aluminum. Echangeur de chaleur selon l'une des revendications 1 à 6, dans lequel chaque collet (24) a une forme allongée propre à recevoir un tube plat (22), caractérisé en ce que l'amincissement localisé est effectué dans une région de forme allongée (28), homologue de celle du collet (24).Heat exchanger according to one of claims 1 to 6, in which each collar (24) has an elongated shape suitable for receiving a flat tube (22), characterized in that the localized thinning is carried out in an elongated region (28), homologous to that of the collar (24). Echangeur de chaleur selon l'une des revendications 1 à 7, caractérisé en ce qu'il constitue un radiateur d'air de suralimentation.Heat exchanger according to one of claims 1 to 7, characterized in that it constitutes a charge air radiator.
EP96115937A 1995-10-06 1996-10-04 Heat exchanger, more particularly supercharge air cooler for automotive vehicle Expired - Lifetime EP0767354B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9511818A FR2739680B1 (en) 1995-10-06 1995-10-06 HEAT EXCHANGER, PARTICULARLY SUPPLY AIR RADIATOR FOR MOTOR VEHICLE
FR9511818 1995-10-06

Publications (2)

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EP0767354A1 true EP0767354A1 (en) 1997-04-09
EP0767354B1 EP0767354B1 (en) 2001-12-05

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EP96115937A Expired - Lifetime EP0767354B1 (en) 1995-10-06 1996-10-04 Heat exchanger, more particularly supercharge air cooler for automotive vehicle

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US (1) US5676200A (en)
EP (1) EP0767354B1 (en)
DE (1) DE69617598T2 (en)
FR (1) FR2739680B1 (en)

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Also Published As

Publication number Publication date
EP0767354B1 (en) 2001-12-05
DE69617598T2 (en) 2002-08-01
FR2739680A1 (en) 1997-04-11
DE69617598D1 (en) 2002-01-17
US5676200A (en) 1997-10-14
FR2739680B1 (en) 1997-12-05

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