EP0686823A1 - Heat exchanger, more particularly for cooling an air flow with high temperature - Google Patents

Heat exchanger, more particularly for cooling an air flow with high temperature Download PDF

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Publication number
EP0686823A1
EP0686823A1 EP95108599A EP95108599A EP0686823A1 EP 0686823 A1 EP0686823 A1 EP 0686823A1 EP 95108599 A EP95108599 A EP 95108599A EP 95108599 A EP95108599 A EP 95108599A EP 0686823 A1 EP0686823 A1 EP 0686823A1
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EP
European Patent Office
Prior art keywords
heat exchanger
shells
rim
shell
tubes
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Granted
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EP95108599A
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German (de)
French (fr)
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EP0686823B1 (en
Inventor
Jean-Louis Laveran
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Valeo Thermique Moteur SA
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Valeo Thermique Moteur SA
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05358—Assemblies of conduits connected side by side or with individual headers, e.g. section type radiators
    • 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
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0221—Header boxes or end plates formed by stacked elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2280/00—Mounting arrangements; Arrangements for facilitating assembling or disassembling of heat exchanger parts
    • F28F2280/04—Means for preventing wrong assembling of parts
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49389—Header or manifold making

Definitions

  • the invention relates to a heat exchanger of the type comprising a bundle of tubes mounted between two manifolds.
  • a first fluid generally water
  • heat after having undergone a heat exchange with another fluid, generally an air flow, which sweeps the tubes of the bundle.
  • Such heat exchangers are mainly used as air / water exchangers and find various applications in the automobile industry, in particular for being used for cooling an engine or for heating the passenger compartment.
  • heat exchangers of this type could not prevail, given the high temperatures involved, for the treatment of a flow of air at high temperature, such as cooling a flow of air from the turbocharger of a motor or industrial vehicle.
  • the air flow from a turbocharger is at a high temperature, generally of the order of 250 ° C, which must be lowered to a temperature of the order of 100 ° C by heat exchange with cooling water or cooling air.
  • plate and strip heat exchangers which include two fluid boxes, a multiplicity of intermediate strips arranged by pairs, as well as a multiplicity of plates arranged in pairs to frame the pairs of bars and form, in collaboration with them, fluid circulation channels.
  • a heat exchanger of this type is known in particular from French Patent No 80 06704 published under No 2 479 438.
  • the main drawback of plate and strip heat exchangers lies in the complexity of assembling the different elements that compose it.
  • the object of the invention is in particular to overcome such a drawback.
  • It also aims to provide a heat exchanger of the type with manifolds and tube bundle which can be used for different applications and in particular for the treatment of a high temperature air flow such as air flow from a turbocharger.
  • Another object of the invention is to provide such a heat exchanger which can be easily assembled, in particular by brazing.
  • each manifold comprises a stack of shells joined in pairs, in which each shell comprises a closed side wall, one end of which is connected to an outer plane rim and the other end of which is connected to an inner plane rim which extends parallel to the outer plane rim and which defines an axial opening, and in which the side wall of each shell delimits a lateral opening, the section of which is adapted to the straight half-section of a tube, so that the shells can be assembled in pairs, alternately by their inner edges and by their outer edges, delimiting an internal chamber over the entire length of the stack and that the ends of the tubes can each be received in the two lateral openings joined together of two adjacent shells.
  • each of the manifolds is formed by a stack of shells, that is to say elements in the form of bowls, which can be assembled two by two together and which can also be assembled at the ends of the tubes of the bundle.
  • Such a heat exchanger can be easily produced by brazing the shells and the tubes together, said shells and said tubes being formed from a suitable metal alloy.
  • a heat exchanger of this type is particularly suitable for cooling the charge air coming from a turbocharger, the charge air entering one of the collecting chambers, then traversing the tubes of the bundle before returning and leaving the other collecting chamber.
  • the high-temperature charge air is advantageously cooled by an air flow which scans the tubes of the bundle.
  • the lateral opening of a shell is delimited by a region set back from the inner rim, which region is closer to the plane of the outer rim than is the plane of the inner rim.
  • the tubes each have a substantially rectangular cross section delimited by two long sides and two short sides, the region set back from the inner rim comprising a central part of length substantially equal to a large side and two parts side length substantially equal to half a short side.
  • their two lateral openings define a complete opening of section adapted to the cross section of a tube.
  • the region set back from the inner rim is connected to a substantially rectilinear region of the side wall.
  • the side wall further comprises a region substantially in a semicircle which is connected to this rectilinear region.
  • the side wall has a tapered shape which widens from the inner plane rim towards the outer plane rim.
  • This particular structure facilitates the production of a shell by stamping or punching using an appropriate punch.
  • the outer rim of each shell comprises indexing means capable of ensuring correct positioning of the two shells of the same pair with a view to their assembly by their respective outer rims.
  • indexing means can take different forms.
  • the means for indexing a shell comprise two folded legs each formed in a punctured by the outer rim and suitable for entering a corresponding opening in another shell. These tabs can play the role of indexing tabs and / or crimping tabs.
  • each element comprises at least one folding crimping tab formed at the periphery for the assembly of the two shells of the same pair.
  • the heat exchanger of the invention advantageously comprises heatsinks or corrugated spacers arranged on either side of the tubes of the bundle.
  • the heat exchanger comprises an end cheek which extends parallel to the tubes and which is assembled with the two shells situated at a first end of each manifold, said cheek being equipped with two tubes used respectively for the admission and evacuation of a fluid passing through the fluid boxes and the tubes of the bundle, while the two shells located at a second end of each manifold are closed.
  • These latter shells are either closed by a common cheek, or consist of specific shells with a continuous bottom at the level of the internal flat rim.
  • the heat exchanger shown in FIG. 1 comprises a fluid box 10 connected to an intake manifold 12, a fluid box 14 connected to an exhaust manifold 16 and a bundle 18 mounted between the two manifolds 10 and 14.
  • the bundle 18 is formed by a multiplicity of parallel tubes 20, of rectangular section, the ends of which respective lead into the two manifolds. Between the tubes 20 are further arranged heatsinks 22 having the form of corrugated spacers.
  • the heat exchanger is adapted to be traversed by a first fluid, for example charge air from a turbocharger, which enters the manifold 10 through the pipe 12, then travels through the tubes 20 to reach the box manifold 14 and leave the latter via the discharge pipe 16, as shown by the arrows F1.
  • a first fluid for example charge air from a turbocharger
  • This first fluid exchanges heat with a second fluid which scans the beam 18 as shown by the arrow F2.
  • Each of the manifolds 10 and 14 comprises a stack of identical shells assembled in pairs and in an alternating fashion, one of which is shown in perspective in FIG. 2.
  • the shell 24 is formed by stamping or punching from a metal sheet, preferably made of stainless steel.
  • the shell 24 comprises a closed side wall 26 having a substantially rectilinear region 28 which is connected to a substantially semi-circular region 30.
  • the wall 26 is connected to an outer flat rim 32 which has a substantially straight portion 34 connected to the region 28 of the wall 26 as well as a portion 36 of substantially semi-circular shape which connects to the region 30 of the wall 26.
  • the flange 32 extends radially outwards from the wall 26.
  • the wall 26 is connected to an internal flat rim 38 which extends parallel to the external flat rim 32 and which delimits an axial opening 40 of substantially semi-circular shape.
  • the internal rim 38 extends radially inwards from the wall 26.
  • the wall 26 is formed as a clearance so as to flare from the inner plane edge 38 towards the outer plane edge 32.
  • the internal flat rim 38 comprises a substantially semi-circular portion 42 extending in the general plane of the rim 38 and connecting to the region 30 of the wall 26.
  • the portion 42 is connected to a region set back which is also part of the inner rim and which is closer to the plane of the outer rim than is the plane of the inner rim.
  • This recessed region comprises a central part 44 (FIGS. 2 to 4) which extends parallel to the plane of the two flanges 32 and 38 as well as two lateral parts 46 connecting the central part 44 to the portion 42.
  • the shells 24 are intended to be stacked and assembled in pairs alternately by their inner edges 38 and by their outer edges 32. This allows to define an internal chamber 48 ( Figure 3) extending over the entire height of the stack.
  • the tubes 20 have a cross section of substantially rectangular shape delimited by two long sides and two short sides.
  • the central part 44 of the recessed region has a length substantially equal to a long side, while the two lateral parts 46 have a length substantially equal to half of a short side.
  • the central part 44 and the two lateral parts 46 of the same shell 24 delimit a lateral opening which corresponds substantially to the straight half-section of a tube.
  • the bundle 18 formed by the tubes 20 and the heatsinks 22 is mounted between the manifolds 10 and 14 each formed by a stack of shells 24.
  • the tubes 20 and the heatsinks 22 are advantageously formed from a stainless steel alloy and aluminum.
  • the heat exchanger comprises two end flanges 52 and 54 located respectively in the upper part and in the lower part in the position of FIG. 1.
  • the cheek 52 extends parallel to the tubes 20 and is assembled with the two shells 24 situated at the upper end of the manifolds 10 and 14. This cheek 52 is itself equipped with the pipes 12 and 16.
  • the cheek 54 extends parallel to the tubes and is assembled with the two shells 24 situated respectively at the opposite ends of the manifolds 10 and 14.
  • the cheek 54 thus makes it possible to close the last shell of the stack of the manifold 10 or of the manifold 14.
  • the portion 34 of the outer rim 32 comprises two indexing tabs 56 formed in punctures and two openings 58 of corresponding shape.
  • FIGS. 5 to 7 we now refer to the embodiment of FIGS. 5 to 7 in which the elements common with those of the first embodiment are defined by the same reference numerals increased by 100.
  • the shell 124 is similar to the shell 24 described above. It differs from the latter in that the outer flat edge 132 has a substantially rectangular shape with four rounded angles instead of a substantially semi-circular shape.
  • the rim 132 comprises two indexing tabs 156 formed in punctures in a region 136 of the rim located on the side of the semi-circular region 130 of the side wall 124.
  • This region 136 continues with a folded edge 137 which extends in a plane parallel to the direction of the stack.
  • the flanges 137 define a support plane on which is assembled a support plate 160 comprising a core 162 to which a wing 164 is connected perpendicularly ( Figures 5 and 6).
  • the shell 124 also differs from the shell 24 in that the opening 140 is crossed radially by a bridge of material 141.
  • FIG. 6 shows, seen in section, the constitution of the heat exchanger respectively at the level of the section planes VI (A), VI (B) and VI (C) of FIG. 5.
  • FIGS. 8 to 9 constitutes a variant of the embodiment of FIGS. 5 to 7.
  • the common elements are designated by the same numerical references increased by 100.
  • the outer rim 232 has, in its region 234, a tab 259 which occupies less than half a width of the shell.
  • FIGS. 10 and 11 constitutes a variant of that of FIGS. 8 and 9.
  • the elements common with those of the preceding embodiment are designated by the same numerical references increased by 100.
  • the main difference lies in the fact that the crimping lug 359 extends over a narrower width.
  • the indexing lugs 256 also serve as crimping lugs, as shown in FIG. 11.
  • the indexing lugs 356 are folded back to also serve as crimping lugs.
  • the lugs 359 are folded back to ensure crimping.
  • the invention is not limited to a heat exchanger used for cooling an air flow by heat exchange with another air flow and that it can be used to provide heat exchange between d other types of fluids.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The heat exchanger consists of a series of tubes (20) between two manifold housings, each made from a series of shells (24) assembled in pairs. Each shell has a closed side wall, connected at one end to a flat outer flange (32), and at the other to a flat inner flange (38) which lies parallel to the outer flange and has an axial aperture (40). The side wall of each shell also forms part of a lateral aperture (50) to receive one of the tubes, and the shells are joined together in pairs facing alternately in opposite directions. Each of the tubes has an elongated rectangular cross-section with two long walls and two short ones, and each shell aperture has a flanged edge of the same dimensions as a tube. The shells also have a system of tongues and apertures to ensure that they are correctly aligned on assembly, e.g. by brazing. <IMAGE>

Description

L'invention concerne un échangeur de chaleur du type comprenant un faisceau de tubes monté entre deux boîtes collectrices.The invention relates to a heat exchanger of the type comprising a bundle of tubes mounted between two manifolds.

On connaît déjà de nombreux échangeurs de chaleur de ce type dans lesquels un premier fluide, généralement de l'eau, pénètre dans l'une des boîtes collectrices et parcourt ensuite les tubes du faisceau pour gagner l'autre boîte collectrice et quitter l'échangeur de chaleur, après avoir subi un échange thermique avec un autre fluide, généralement un flux d'air, qui balaie les tubes du faisceau.Numerous heat exchangers of this type are already known in which a first fluid, generally water, enters one of the manifolds and then travels through the tubes of the bundle to reach the other manifold and leave the exchanger. heat, after having undergone a heat exchange with another fluid, generally an air flow, which sweeps the tubes of the bundle.

De tels échangeurs de chaleur sont principalement utilisés en tant qu'échangeurs air/eau et trouvent des applications diverses dans l'industrie automobile, notamment pour servir au refroidissement d'un moteur ou au chauffage de l'habitacle.Such heat exchangers are mainly used as air / water exchangers and find various applications in the automobile industry, in particular for being used for cooling an engine or for heating the passenger compartment.

Toutefois, les échangeurs de chaleur de ce type n'ont pas pu s'imposer, compte tenu des températures élevées mises en jeu, pour le traitement d'un flux d'air à haute température, comme le refroidissement d'un flux d'air issu du turbocompresseur d'un véhicule automobile ou industriel.However, heat exchangers of this type could not prevail, given the high temperatures involved, for the treatment of a flow of air at high temperature, such as cooling a flow of air from the turbocharger of a motor or industrial vehicle.

En effet, le flux d'air issu d'un turbocompresseur se trouve à une température élevée, généralement de l'ordre de 250°C, qui doit être abaissée à une température de l'ordre de 100°C par échange thermique avec de l'eau de refroidissement ou de l'air de refroidissement.Indeed, the air flow from a turbocharger is at a high temperature, generally of the order of 250 ° C, which must be lowered to a temperature of the order of 100 ° C by heat exchange with cooling water or cooling air.

Dans cette application particulière au refroidissement du flux d'air issu d'un turbocompresseur, on a utilisé jusqu'à présent des échangeurs particuliers, appelés "échangeurs à plaques et barrettes", qui comprennent deux boîtes à fluide, une multiplicité de barrettes intercalaires disposées par paires, ainsi qu'une multiplicité de plaques disposées par paires pour encadrer les paires de barrettes et former en collaboration avec elles des canaux de circulation de fluide.In this particular application for cooling the air flow from a turbocharger, special exchangers have been used up to now, called "plate and strip heat exchangers", which include two fluid boxes, a multiplicity of intermediate strips arranged by pairs, as well as a multiplicity of plates arranged in pairs to frame the pairs of bars and form, in collaboration with them, fluid circulation channels.

Un échangeur de chaleur de ce type est connu notamment d'après le Brevet français No 80 06704 publié sous le No 2 479 438.A heat exchanger of this type is known in particular from French Patent No 80 06704 published under No 2 479 438.

L'inconvénient principal des échangeurs à plaques et barrettes réside dans la complexité de l'assemblage des différents éléments qui le composent.The main drawback of plate and strip heat exchangers lies in the complexity of assembling the different elements that compose it.

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

Elle a également pour but de procurer un échangeur de chaleur du type a boîtes collectrices et à faisceau de tubes qui peut être utilisé pour différentes applications et notamment pour le traitement d'un flux d'air à haute température tel que le flux d'air issu d'un turbocompresseur.It also aims to provide a heat exchanger of the type with manifolds and tube bundle which can be used for different applications and in particular for the treatment of a high temperature air flow such as air flow from a turbocharger.

L' invention a également pour but de procurer un tel échangeur de chaleur qui peut être facilement assemblé, notamment par brasage.Another object of the invention is to provide such a heat exchanger which can be easily assembled, in particular by brazing.

L'invention propose à cet effet un échangeur de chaleur du type défini en introduction,
dans lequel chaque boîte collectrice comprend un empilement de coquilles réunies par paires,
dans lequel chaque coquille comprend une paroi latérale fermée dont une extrémité est raccordée à un rebord plan extérieur et dont une autre extrémité est reliée à un rebord plan intérieur qui s'étend parallèlement au rebord plan extérieur et qui délimite une ouverture axiale,
et dans lequel la paroi latérale de chaque coquille délimite une ouverture latérale dont la section est adaptée à la demi-section droite d'un tube,
en sorte que les coquilles peuvent être assemblées par paires, alternativement par leurs rebords intérieurs et par leurs rebords extérieurs, en délimitant une chambre interne sur toute la longueur de l'empilement et que les extrémités des tubes peuvent être reçues chacune dans les deux ouvertures latérales réunies de deux coquilles adjacentes.To this end, the invention proposes a heat exchanger of the type defined in the introduction,
in which each manifold comprises a stack of shells joined in pairs,
in which each shell comprises a closed side wall, one end of which is connected to an outer plane rim and the other end of which is connected to an inner plane rim which extends parallel to the outer plane rim and which defines an axial opening,
and in which the side wall of each shell delimits a lateral opening, the section of which is adapted to the straight half-section of a tube,
so that the shells can be assembled in pairs, alternately by their inner edges and by their outer edges, delimiting an internal chamber over the entire length of the stack and that the ends of the tubes can each be received in the two lateral openings joined together of two adjacent shells.

Ainsi, chacune des boîtes collectrices est formée par un empilement de coquilles, c'est-àdire d'éléments en forme de cuvettes, qui peuvent être assemblées deux par deux entre elles et qui peuvent être assemblées également aux extrémités des tubes du faisceau.Thus, each of the manifolds is formed by a stack of shells, that is to say elements in the form of bowls, which can be assembled two by two together and which can also be assembled at the ends of the tubes of the bundle.

Un tel échangeur de chaleur peut être réalisé facilement par brasage des coquilles et des tubes entre eux, lesdites coquilles et lesdits tubes étant formés d'un alliage métallique approprié.Such a heat exchanger can be easily produced by brazing the shells and the tubes together, said shells and said tubes being formed from a suitable metal alloy.

Un échangeur de chaleur de ce type convient tout particulièrement au refroidissement de l'air de suralimentation provenant d'un turbocompresseur, l'air de suralimentation pénétrant dans l'une des chambres collectrices, parcourant ensuite les tubes du faisceau avant de regagner et de quitter l'autre chambre collectrice.A heat exchanger of this type is particularly suitable for cooling the charge air coming from a turbocharger, the charge air entering one of the collecting chambers, then traversing the tubes of the bundle before returning and leaving the other collecting chamber.

L'air de suralimentation à haute température est refroidi avantageusement par un flux d'air qui balaie les tubes du faisceau.The high-temperature charge air is advantageously cooled by an air flow which scans the tubes of the bundle.

De façon avantageuse, l'ouverture latérale d'une coquille est délimitée par une région en retrait du rebord intérieur, laquelle région est plus proche du plan du rebord extérieur que ne l'est le plan du rebord intérieur.Advantageously, the lateral opening of a shell is delimited by a region set back from the inner rim, which region is closer to the plane of the outer rim than is the plane of the inner rim.

Selon une caractéristique préférentielle de l'invention, les tubes ont chacun une section droite sensiblement rectangulaire délimitée par deux grands côtés et deux petits côtés, la région en retrait du rebord intérieur comprenant une partie centrale de longueur sensiblement égale à un grand côté et deux parties latérales de longueur sensiblement égale à la moitié d'un petit côté.According to a preferred characteristic of the invention, the tubes each have a substantially rectangular cross section delimited by two long sides and two short sides, the region set back from the inner rim comprising a central part of length substantially equal to a large side and two parts side length substantially equal to half a short side.

Ainsi, lorsque deux coquilles sont réunies entre elles par leurs rebords intérieurs respectifs, leurs deux ouvertures latérales définissent une ouverture complète de section adaptée à la section droite d'un tube.Thus, when two shells are joined together by their respective inner edges, their two lateral openings define a complete opening of section adapted to the cross section of a tube.

Selon une autre caractéristique de l'invention, la région en retrait du rebord intérieur se rattache à une région sensiblement rectiligne de la paroi latérale.According to another characteristic of the invention, the region set back from the inner rim is connected to a substantially rectilinear region of the side wall.

Avantageusement, la paroi latérale comporte en outre une région sensiblement en demi-cercle qui se raccorde à cette région rectiligne.Advantageously, the side wall further comprises a region substantially in a semicircle which is connected to this rectilinear region.

Selon un autre caractéristique, la paroi latérale a une forme en dépouille qui va en s'évasant à partir du rebord plan intérieur vers le rebord plan extérieur.According to another characteristic, the side wall has a tapered shape which widens from the inner plane rim towards the outer plane rim.

Cette structure particulière facilite la réalisation d'une coquille par estampage ou poinçonnage à l'aide d'un poinçon approprie.This particular structure facilitates the production of a shell by stamping or punching using an appropriate punch.

Selon une autre caractéristique de l'invention, le rebord extérieur de chaque coquille comporte des moyens d'indexation propres à assurer un positionnement correct des deux coquilles d'une même paire en vue de leur assemblage par leurs rebords extérieurs respectifs.According to another characteristic of the invention, the outer rim of each shell comprises indexing means capable of ensuring correct positioning of the two shells of the same pair with a view to their assembly by their respective outer rims.

Ces moyens d'indexation peuvent revêtir différentes formes.These indexing means can take different forms.

A titre d'exemple, les moyens d'indexation d'une coquille comprennent deux pattes repliées formées chacune dans un crevé du rebord extérieur et propres à s' introduire dans une ouverture correspondante d'une autre coquille. Ces pattes peuvent jouer le rôle de pattes d'indexation et/ou de pattes de sertissage.By way of example, the means for indexing a shell comprise two folded legs each formed in a punctured by the outer rim and suitable for entering a corresponding opening in another shell. These tabs can play the role of indexing tabs and / or crimping tabs.

De façon avantageuse, le rebord extérieur de chaque élément comprend au moins une patte de sertissage repliable formée à la périphérie en vue de l'assemblage des deux coquilles d'une même paire.Advantageously, the outer edge of each element comprises at least one folding crimping tab formed at the periphery for the assembly of the two shells of the same pair.

L' échangeur de chaleur de l' invention comprend avantageusement des dissipateurs ou intercalaires ondulés disposés de part et d'autre des tubes du faisceau.The heat exchanger of the invention advantageously comprises heatsinks or corrugated spacers arranged on either side of the tubes of the bundle.

Selon une autre caractéristique de l'invention, l'échangeur de chaleur comprend une joue d'extrémité qui s'étend parallèlement aux tubes et qui est assemblée aux deux coquilles situées à une première extrémité de chaque boîte collectrice, ladite joue étant équipée de deux tubulures servant respectivement à l'admission et à l'évacuation d'un fluide parcourant les boîtes à fluide et les tubes du faisceau, tandis que les deux coquilles situées à une seconde extrémité de chaque boîte collectrice sont fermées.According to another characteristic of the invention, the heat exchanger comprises an end cheek which extends parallel to the tubes and which is assembled with the two shells situated at a first end of each manifold, said cheek being equipped with two tubes used respectively for the admission and evacuation of a fluid passing through the fluid boxes and the tubes of the bundle, while the two shells located at a second end of each manifold are closed.

Ces dernières coquilles sont soit fermées par une joue commune, soit constituées de coquilles spécifiques avec un fond continu au niveau du rebord plan intérieur.These latter shells are either closed by a common cheek, or consist of specific shells with a continuous bottom at the level of the internal flat rim.

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

  • la figure 1 est une vue en perspective d'un échangeur de chaleur selon l'invention;
  • la figure 2 est une vue en perspective d'une coquille dans une première forme de réalisation;
  • la figure 3 est une vue partielle en coupe longitudinale d'un échangeur de chaleur muni de coquilles conformes à la figure 2;
  • la figure 4 est une vue en coupe selon la ligne IV-IV de la figure 3;
  • la figure 5 est une vue partielle en coupe transversale d'un échangeur de chaleur selon une seconde forme de réalisation de l'invention;
  • la figure 6 est une vue en coupe selon les lignes VI(A)-VI(A), VI(B)-VI(B) et VI(C)-VI(C) de la figure 5;
  • la figure 7 est une vue en coupe selon la ligne VII-VII de la figure 5;
  • la figure 8 est une vue en coupe transversale partielle d'un échangeur de chaleur selon une troisième forme de réalisation de l'invention;
  • la figure 9 est une vue en coupe selon la ligne IX-IX de la figure 8;
  • la figure 10 est une vue en coupe transversale partielle d'un échangeur de chaleur selon une quatrième forme de réalisation de l'invention; et
  • la figure 11 est une' vue en coupe selon la ligne XI-XI de la figure 10.
In the description which follows, given by way of example, reference is made to the appended drawings, in which:
  • Figure 1 is a perspective view of a heat exchanger according to the invention;
  • Figure 2 is a perspective view of a shell in a first embodiment;
  • Figure 3 is a partial view in longitudinal section of a heat exchanger provided with shells according to Figure 2;
  • Figure 4 is a sectional view along the line IV-IV of Figure 3;
  • Figure 5 is a partial cross-sectional view of a heat exchanger according to a second embodiment of the invention;
  • Figure 6 is a sectional view along lines VI (A) -VI (A), VI (B) -VI (B) and VI (C) -VI (C) of Figure 5;
  • Figure 7 is a sectional view along line VII-VII of Figure 5;
  • Figure 8 is a partial cross-sectional view of a heat exchanger according to a third embodiment of the invention;
  • Figure 9 is a sectional view along the line IX-IX of Figure 8;
  • Figure 10 is a partial cross-sectional view of a heat exchanger according to a fourth embodiment of the invention; and
  • Figure 11 is a sectional view along line XI-XI of Figure 10.

L'échangeur de chaleur représenté à la figure 1 comprend une boîte à fluide 10 reliée à une tubulure d'admission 12, une boîte à fluide 14 reliée à une tubulure d'évacuation 16 et un faisceau 18 monté entre les deux boîtes collectrices 10 et 14.The heat exchanger shown in FIG. 1 comprises a fluid box 10 connected to an intake manifold 12, a fluid box 14 connected to an exhaust manifold 16 and a bundle 18 mounted between the two manifolds 10 and 14.

Le faisceau 18 est formé d'une multiplicité de tubes 20 parallèles, de section rectangulaire, dont les extrémités respectives débouchent dans les deux boîtes collectrices. Entre les tubes 20 sont en outre disposés des dissipateurs 22 ayant la forme d'intercalaires ondulés.The bundle 18 is formed by a multiplicity of parallel tubes 20, of rectangular section, the ends of which respective lead into the two manifolds. Between the tubes 20 are further arranged heatsinks 22 having the form of corrugated spacers.

L'échangeur de chaleur est propre à être parcouru par un premier fluide, par exemple de l'air de suralimentation issu d'un turbocompresseur, qui pénètre dans la boîte collectrice 10 par la tubulure 12, parcourt ensuite les tubes 20 pour gagner la boîte collectrice 14 et quitter cette dernière par la tubulure d'évacuation 16, comme montré par les flèches F1. Ce premier fluide échange de la chaleur avec un second fluide qui balaie le faisceau 18 comme montré par la flèche F2.The heat exchanger is adapted to be traversed by a first fluid, for example charge air from a turbocharger, which enters the manifold 10 through the pipe 12, then travels through the tubes 20 to reach the box manifold 14 and leave the latter via the discharge pipe 16, as shown by the arrows F1. This first fluid exchanges heat with a second fluid which scans the beam 18 as shown by the arrow F2.

Chacune des boîtes collectrices 10 et 14 comprend un empilement de coquilles identiques assemblées par paires et de façon alternée, dont l'une d'entre elles est représentée en perspective à la figure 2.Each of the manifolds 10 and 14 comprises a stack of identical shells assembled in pairs and in an alternating fashion, one of which is shown in perspective in FIG. 2.

La coquille 24 est formée par estampage ou poinçonnage à partir d'une tôle métallique, de préférence en acier inoxydable. La coquille 24 comprend une paroi latérale fermée 26 présentant une région 28 sensiblement rectiligne qui se raccorde à une région 30 sensiblement semi-circulaire.The shell 24 is formed by stamping or punching from a metal sheet, preferably made of stainless steel. The shell 24 comprises a closed side wall 26 having a substantially rectilinear region 28 which is connected to a substantially semi-circular region 30.

A son extrémité supérieure (figure 2), la paroi 26 se raccorde à un rebord plan extérieur 32 qui comporte une portion 34 sensiblement rectiligne raccordée à la région 28 de la paroi 26 ainsi qu'une portion 36 de forme sensiblement semi-circulaire qui se raccorde à la région 30 de la paroi 26. Le rebord 32 s'étend radialement vers l'extérieur à partir de la paroi 26.At its upper end (FIG. 2), the wall 26 is connected to an outer flat rim 32 which has a substantially straight portion 34 connected to the region 28 of the wall 26 as well as a portion 36 of substantially semi-circular shape which connects to the region 30 of the wall 26. The flange 32 extends radially outwards from the wall 26.

A son extrémité inférieure (figure 2), la paroi 26 se raccorde à un rebord plan intérieur 38 qui s'étend parallèlement au rebord plan extérieur 32 et qui délimite une ouverture axiale 40 de forme sensiblement semi-circulaire.At its lower end (FIG. 2), the wall 26 is connected to an internal flat rim 38 which extends parallel to the external flat rim 32 and which delimits an axial opening 40 of substantially semi-circular shape.

Le rebord intérieur 38 s'étend radialement vers l'intérieur à partir de la paroi 26.The internal rim 38 extends radially inwards from the wall 26.

Comme on peut le voir sur les figures 2 à 4, la paroi 26 est formée en dépouille de manière à s'évaser à partir du rebord plan intérieur 38 vers le rebord plan extérieur 32.As can be seen in FIGS. 2 to 4, the wall 26 is formed as a clearance so as to flare from the inner plane edge 38 towards the outer plane edge 32.

Comme montré à la figure 2, le rebord plan intérieur 38 comprend une portion 42 sensiblement semi-circulaire s'étendant dans le plan général du rebord 38 et se raccordant à la région 30 de la paroi 26. La portion 42 se raccorde à une région en retrait qui fait également partie du rebord intérieur et qui se trouve plus proche du plan du rebord extérieur que ne l'est le plan du rebord intérieur.As shown in FIG. 2, the internal flat rim 38 comprises a substantially semi-circular portion 42 extending in the general plane of the rim 38 and connecting to the region 30 of the wall 26. The portion 42 is connected to a region set back which is also part of the inner rim and which is closer to the plane of the outer rim than is the plane of the inner rim.

Cette région en retrait comprend une partie centrale 44 (figures 2 à 4) qui s'étend parallèlement au plan des deux rebords 32 et 38 ainsi que deux parties latérales 46 raccordant la partie centrale 44 à la portion 42.This recessed region comprises a central part 44 (FIGS. 2 to 4) which extends parallel to the plane of the two flanges 32 and 38 as well as two lateral parts 46 connecting the central part 44 to the portion 42.

Comme on le voit mieux sur les figures 3 et 4, les coquilles 24 sont destinées à être empilées et assemblées par paires alternativement par leurs rebords intérieurs 38 et par leurs rebords extérieurs 32. Ce qui permet de délimiter une chambre interne 48 (figure 3) s'étendant sur toute la hauteur de l'empilement.As best seen in Figures 3 and 4, the shells 24 are intended to be stacked and assembled in pairs alternately by their inner edges 38 and by their outer edges 32. This allows to define an internal chamber 48 (Figure 3) extending over the entire height of the stack.

Lorsque deux coquilles 24 sont réunies par leurs rebords intérieurs respectifs 38, leurs régions en retrait délimitent respectivement deux ouvertures latérales 50 (figure 2) propres à recevoir ensemble l'extrémité d'un tube 20 du faisceau.When two shells 24 are joined by their respective inner edges 38, their recessed regions respectively delimit two lateral openings 50 (FIG. 2) suitable for receiving together the end of a tube 20 of the bundle.

Dans l'exemple, les tubes 20 ont une section droite de forme sensiblement rectangulaire délimitée par deux grands côtés et deux petits côtés.In the example, the tubes 20 have a cross section of substantially rectangular shape delimited by two long sides and two short sides.

La partie centrale 44 de la région en retrait a une longueur sensiblement égale à un grand côté, tandis que les deux parties latérales 46 ont une longueur sensiblement égale à la moitié d'un petit côté.The central part 44 of the recessed region has a length substantially equal to a long side, while the two lateral parts 46 have a length substantially equal to half of a short side.

Autrement dit, la partie centrale 44 et les deux parties latérales 46 d'une même coquille 24 délimitent une ouverture latérale qui correspond sensiblement à la demi-section droite d'un tube.In other words, the central part 44 and the two lateral parts 46 of the same shell 24 delimit a lateral opening which corresponds substantially to the straight half-section of a tube.

Le faisceau 18 formé par les tubes 20 et les dissipateurs 22 est monté entre les boîtes collectrices 10 et 14 formées chacune par un empilement de coquilles 24. Les tubes 20 et les dissipateurs 22 sont avantageusement formés à partir d'un alliage d'acier inoxydable et d'aluminium.The bundle 18 formed by the tubes 20 and the heatsinks 22 is mounted between the manifolds 10 and 14 each formed by a stack of shells 24. The tubes 20 and the heatsinks 22 are advantageously formed from a stainless steel alloy and aluminum.

Après montage et assemblage des différents éléments constitutifs de l'échangeur, ceux-ci sont avantageusement réunis entre eux par brasage au four.After assembly and assembly of the various constituent elements of the exchanger, these are advantageously joined together by brazing in an oven.

Comme on le voit à la figure 1, l'échangeur de chaleur comprend deux joues d'extrémité 52 et 54 situées respectivement en partie supérieure et en partie inférieure dans la position de la figure 1.As can be seen in FIG. 1, the heat exchanger comprises two end flanges 52 and 54 located respectively in the upper part and in the lower part in the position of FIG. 1.

La joue 52 s'étend parallèlement aux tubes 20 et est assemblée aux deux coquilles 24 situées à l'extrémité supérieure des boîtes collectrices 10 et 14. Cette joue 52 est équipée elle-même des tubulures 12 et 16.The cheek 52 extends parallel to the tubes 20 and is assembled with the two shells 24 situated at the upper end of the manifolds 10 and 14. This cheek 52 is itself equipped with the pipes 12 and 16.

La joue 54 s'étend parallèlement aux tubes et est assemblée aux deux coquilles 24 situées respectivement aux extrémités opposées des boîtes collectrices 10 et 14.The cheek 54 extends parallel to the tubes and is assembled with the two shells 24 situated respectively at the opposite ends of the manifolds 10 and 14.

La joue 54 permet ainsi de fermer la dernière coquille de l'empilement de la boîte collectrice 10 ou de la boîte collectrice 14.The cheek 54 thus makes it possible to close the last shell of the stack of the manifold 10 or of the manifold 14.

Dans une variante (non représentée), il serait possible de prévoir des coquilles spécifiques qui présentent un fond continu à la place du rebord intérieur 42 et qui ferment ainsi l'extrémité d'une boîte à fluide.In a variant (not shown), it would be possible to provide specific shells which have a continuous bottom in place of the inner rim 42 and which thus close the end of a fluid box.

Comme montré à la figure 2, la portion 34 du rebord extérieur 32 comprend deux pattes d'indexation 56 formées en crevés et deux ouvertures 58 de forme correspondante.As shown in Figure 2, the portion 34 of the outer rim 32 comprises two indexing tabs 56 formed in punctures and two openings 58 of corresponding shape.

Lorsque deux coquilles 24 sont assemblées par leurs rebords extérieurs 32, les deux pattes d'indexation 56 d'une coquille pénètrent dans les deux ouvertures 58 de l'autre coquille et vice versa, ce qui assure un positionnement relatif correct des deux coquilles d'une même paire en vue de leur assemblage ultérieur par brasage.When two shells 24 are assembled by their outer edges 32, the two indexing tabs 56 of a shell penetrate into the two openings 58 of the other shell and vice versa, which ensures correct relative positioning of the two shells. the same pair for their subsequent assembly by brazing.

On se réfère maintenant à la forme de réalisation des figures 5 à 7 dans laquelle les éléments communs avec ceux de la première forme de réalisation sont définis par les mêmes références numériques augmentées de 100.We now refer to the embodiment of FIGS. 5 to 7 in which the elements common with those of the first embodiment are defined by the same reference numerals increased by 100.

La coquille 124 s'apparente à la coquille 24 décrite précédemment. Elle diffère de cette dernière par le fait que le rebord plan extérieur 132 a une forme sensiblement rectangulaire avec quatre angles arrondis au lieu d'une forme sensiblement semi-circulaire.The shell 124 is similar to the shell 24 described above. It differs from the latter in that the outer flat edge 132 has a substantially rectangular shape with four rounded angles instead of a substantially semi-circular shape.

Le rebord 132 comprend deux pattes d'indexation 156 formées dans des crevés dans une région 136 du rebord située du côté de la région semi-circulaire 130 de la paroi latérale 124.The rim 132 comprises two indexing tabs 156 formed in punctures in a region 136 of the rim located on the side of the semi-circular region 130 of the side wall 124.

Cette région 136 se poursuit par un bord replié 137 qui s'étend dans un plan parallèle à la direction de l'empilement.This region 136 continues with a folded edge 137 which extends in a plane parallel to the direction of the stack.

Lorsque les coquilles sont empilées, les rebords 137 définissent un plan d'appui sur lequel est assemblée une plaque support 160 comprenant une âme 162 à laquelle se raccorde perpendiculairement une aile 164 (figures 5 et 6).When the shells are stacked, the flanges 137 define a support plane on which is assembled a support plate 160 comprising a core 162 to which a wing 164 is connected perpendicularly (Figures 5 and 6).

La coquille 124 diffère en outre de la coquille 24 par le fait que l'ouverture 140 est traversée radialement par un pont de matière 141.The shell 124 also differs from the shell 24 in that the opening 140 is crossed radially by a bridge of material 141.

La figure 6 montre, vue en coupe, la constitution de l'échangeur de chaleur respectivement au niveau des plans de coupe VI(A), VI(B) et VI(C) de la figure 5.FIG. 6 shows, seen in section, the constitution of the heat exchanger respectively at the level of the section planes VI (A), VI (B) and VI (C) of FIG. 5.

On se réfère maintenant à la forme de réalisation des figures 8 à 9 qui constitue une variante de la forme de réalisation des figures 5 à 7. Les éléments communs sont désignés sous les mêmes références numériques augmentées de 100.Reference is now made to the embodiment of FIGS. 8 to 9 which constitutes a variant of the embodiment of FIGS. 5 to 7. The common elements are designated by the same numerical references increased by 100.

La différence principale réside dans le fait que le rebord extérieur 232 comporte, dans sa région 234, une patte 259 qui occupe moins d'une demi-largeur de la coquille. Lorsque deux coquilles sont réunies par leurs rebords extérieurs 232, les pattes 256 permettent une indexation, tandis que les deux pattes 259 peuvent être repliées comme montré à la figure 9 pour assurer un sertissage préalable des deux coquilles 224.The main difference lies in the fact that the outer rim 232 has, in its region 234, a tab 259 which occupies less than half a width of the shell. When two shells are joined by their outer edges 232, the lugs 256 allow indexing, while the two lugs 259 can be folded as shown in FIG. 9 to ensure prior crimping of the two shells 224.

On se réfère maintenant à la forme de réalisation des figures 10 et 11 qui constitue une variante de celle des figures 8 et 9. Les éléments communs avec ceux de la forme de réalisation précédente sont désignés par les mêmes références numériques augmentées de 100.Reference is now made to the embodiment of FIGS. 10 and 11 which constitutes a variant of that of FIGS. 8 and 9. The elements common with those of the preceding embodiment are designated by the same numerical references increased by 100.

Dans cette variante, la différence principale réside dans le fait que la patte de sertissage 359 s'étend sur une plus faible largeur. En outre, les pattes d'indexation 256 servent également de pattes de sertissage, comme montré à la figure 11.In this variant, the main difference lies in the fact that the crimping lug 359 extends over a narrower width. In addition, the indexing lugs 256 also serve as crimping lugs, as shown in FIG. 11.

Après positionnement de deux coquilles 324 par leurs rebords extérieurs respectifs 332, les pattes d'indexation 356 sont repliées pour servir également de pattes de sertissage.After positioning two shells 324 by their respective outer edges 332, the indexing lugs 356 are folded back to also serve as crimping lugs.

De même, les pattes 359 sont repliées pour assurer le sertissage.Likewise, the lugs 359 are folded back to ensure crimping.

Bien entendu, l'invention n'est pas limitée aux formes de réalisation décrites précédemment à titre d'exemple.Of course, the invention is not limited to the embodiments described above by way of example.

On comprendra que l'invention n'est pas limitée à un échangeur de chaleur servant au refroidissement d'un flux d'air par échange thermique avec un autre flux d'air et qu'elle peut être utilisée pour assurer un échange thermique entre d'autres types de fluides.It will be understood that the invention is not limited to a heat exchanger used for cooling an air flow by heat exchange with another air flow and that it can be used to provide heat exchange between d other types of fluids.

Claims (12)

Echangeur de chaleur comprenant un faisceau de tubes monté entre deux boîtes collectrices,
caractérisé en ce que chaque boîte collectrice (10,14) comprend un empilement de coquilles (24) réunies par paires,
en ce que chaque coquille (24) comprend une paroi latérale fermée (26) dont une extrémité est raccordée à un rebord plan extérieur (32) et dont une autre extrémité est raccordée à un rebord plan intérieur (38) qui s'étend parallèlement au rebord plan extérieur et qui délimite une ouverture axiale (40),
et en ce que la paroi latérale (26) de chaque coquille (24) délimite une ouverture latérale (50) dont la section est adaptée à la demi-section droite d'un tube (20),
en sorte que les coquilles (24) peuvent être assemblées par paires alternativement par leurs rebords intérieurs (38) et par leurs rebords extérieurs (32) en délimitant une chambre interne (48) sur toute la longueur de l'empilement et que les extrémités des tubes (20) peuvent être reçues chacune dans les deux ouvertures latérales (50) de deux coquilles adjacentes (24).Heat exchanger comprising a bundle of tubes mounted between two manifolds,
characterized in that each manifold (10,14) comprises a stack of shells (24) joined in pairs,
in that each shell (24) comprises a closed side wall (26), one end of which is connected to an outer plane rim (32) and the other end of which is connected to an inner plane rim (38) which extends parallel to the outer plane rim and which delimits an axial opening (40),
and in that the side wall (26) of each shell (24) delimits a lateral opening (50), the section of which is adapted to the straight half-section of a tube (20),
so that the shells (24) can be assembled in pairs alternately by their inner edges (38) and by their outer edges (32) delimiting an internal chamber (48) over the entire length of the stack and that the ends of the tubes (20) can each be received in the two lateral openings (50) of two adjacent shells (24). Echangeur de chaleur selon la revendication 1, caractérisé en ce que l'ouverture latérale (50) d'une coquille (24) est délimitée par une région en retrait (44,46) du rebord intérieur (38), cette région en retrait étant plus proche du plan du rebord extérieur (32) que ne l'est le plan du rebord intérieur (38).Heat exchanger according to claim 1, characterized in that the lateral opening (50) of a shell (24) is delimited by a recessed region (44,46) of the inner rim (38), this recessed region being closer to the plane of the outer rim (32) than is the plane of the inner rim (38). Echangeur de chaleur selon l'une des revendications 1 et 2, caractérisé en ce que les tubes (20) ont chacun une section droite sensiblement rectangulaire délimitée par deux grands côtés et deux petits côtés, et en ce que la région en retrait du rebord intérieur (38) comprend une partie centrale (44) de longueur sensiblement égale à un grand côté et deux parties latérales (46) de longueur sensiblement égale à la moitié d'un petit côté.Heat exchanger according to one of claims 1 and 2, characterized in that the tubes (20) each have a substantially rectangular cross section delimited by two long sides and two short sides, and in that the region set back from the inner rim (38) includes a central part (44) of length substantially equal to a long side and two lateral parts (46) of length substantially equal to half of a short side. Echangeur de chaleur selon l'une des revendications 2 et 3, caractérisé en ce que la région en retrait du rebord intérieur (38) se rattache à une région sensiblement rectiligne (28) de la paroi latérale (26).Heat exchanger according to one of claims 2 and 3, characterized in that the region set back from the inner rim (38) is connected to a substantially straight region (28) of the side wall (26). Echangeur de chaleur selon la revendication 4, caractérisé en ce que la paroi latérale (26) comporte en outre une région (30) sensiblement semi-circulaire qui se raccorde à la région rectiligne (28).Heat exchanger according to claim 4, characterized in that the side wall (26) further comprises a region (30) substantially semi-circular which connects to the straight region (28). Echangeur de chaleur selon l'une des revendications 1 à 5, caractérisé en ce que la paroi latérale (24) a une forme en dépouille qui va en s'évasant à partir du rebord plan intérieur (38) vers le rebord plan extérieur (32).Heat exchanger according to one of claims 1 to 5, characterized in that the side wall (24) has a tapered shape which widens from the inner plane edge (38) towards the outer plane edge (32 ). Echangeur de chaleur selon l'une des revendications 1 à 6, caractérisé en ce que le rebord plan extérieur (32) de chaque coquille comporte des moyens d'indexation (56; 156; 256; 356) propres à assurer un positionnement relatif correct des deux coquilles d'une même paire en vue de leur assemblage par leurs rebords extérieurs respectifs.Heat exchanger according to one of claims 1 to 6, characterized in that the outer flat edge (32) of each shell comprises indexing means (56; 156; 256; 356) suitable for ensuring correct relative positioning of the two shells of the same pair with a view to their assembly by their respective outer edges. Echangeur de chaleur selon la revendication 7, caractérisé en ce que les moyens d'indexation d'une coquille comprennent deux pattes repliées (56; 156; 256; 356) formées chacune dans un crevé du rebord extérieur (32; 132; 232; 332) et propres à s'introduire dans des ouvertures correspondantes d'une autre coquille.Heat exchanger according to claim 7, characterized in that the means for indexing a shell comprise two folded legs (56; 156; 256; 356) each formed in a puncture in the outer rim (32; 132; 232; 332 ) and suitable for entering into corresponding openings in another shell. Echangeur de chaleur selon l'une des revendications 1 à 8, caractérisé en ce que le rebord extérieur (232; 332) de chaque coquille (224; 324) comprend au moins une patte de sertissage (259; 359) repliable formée à la périphérie en vue de l'assemblage des deux coquilles d'une même paire.Heat exchanger according to one of claims 1 to 8, characterized in that the outer rim (232; 332) of each shell (224; 324) comprises at least one foldable crimping lug (259; 359) formed at the periphery for the assembly of the two shells of the same pair. Echangeur de chaleur selon l'une des revendications 1 à 9, caractérisé en ce qu'il comprend des dissipateurs (22) disposés de part et d'autre des tubes (20) du faisceau.Heat exchanger according to one of claims 1 to 9, characterized in that it comprises dissipators (22) arranged on either side of the tubes (20) of the bundle. Echangeur de chaleur selon l'une des revendications 1 à 10, caractérisé en ce qu'il comprend une joue d'extrémité (52) qui s'étend parallèlement aux tubes (20) et qui est assemblée aux deux coquilles situées à une première extrémité de chaque boîte collectrice (10,14), ladite joue (52) étant équipée de deux tubulures (12, 16) servant respectivement à l'admission et à l'évacuation d'un fluide parcourant les boîtes à fluide et les tubes du faisceau, tandis que les deux coquilles situées à une seconde extrémité de chaque boîte collectrice sont fermées.Heat exchanger according to one of claims 1 to 10, characterized in that it comprises an end flange (52) which extends parallel to the tubes (20) and which is assembled with the two shells located at a first end of each manifold (10,14), said cheek (52) being equipped with two pipes (12, 16) respectively serving for the admission and evacuation of a fluid passing through the fluid boxes and the tubes of the bundle , while the two shells located at a second end of each manifold are closed. Echangeur de chaleur selon la revendication 11, caractérisé en ce que les coquilles (24) situées à la seconde extrémité de chaque boîte collectrice (10,14) sont, soit fermées par une joue commune (54), soit constituées par des coquilles spécifiques avec un fond continu au niveau du rebord plan intérieur (38).Heat exchanger according to claim 11, characterized in that the shells (24) located at the second end of each manifold (10,14) are either closed by a common cheek (54), or are constituted by specific shells with a continuous bottom at the level of the internal flat rim (38).
EP95108599A 1994-06-08 1995-06-06 Heat exchanger, more particularly for cooling an air flow with high temperature Expired - Lifetime EP0686823B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9407026 1994-06-08
FR9407026A FR2721099B1 (en) 1994-06-08 1994-06-08 Heat exchanger useful in particular for cooling an air flow at high temperature.

Publications (2)

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EP0686823A1 true EP0686823A1 (en) 1995-12-13
EP0686823B1 EP0686823B1 (en) 2001-07-25

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US (1) US5634519A (en)
EP (1) EP0686823B1 (en)
DE (1) DE69521843T2 (en)
FR (1) FR2721099B1 (en)

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FR2834336A1 (en) * 2001-12-28 2003-07-04 Valeo Thermique Moteur Sa CIRCUIT ELEMENT FOR A HEAT EXCHANGER, ESPECIALLY A MOTOR VEHICLE AND A HEAT EXCHANGER THUS OBTAINED
FR2947045A1 (en) * 2009-06-23 2010-12-24 Valeo Systemes Thermiques HEAT EXCHANGER BLOCK, ESPECIALLY FOR AIR CONDITIONING CONDENSER

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CA2215173C (en) * 1997-09-11 2004-04-06 Thomas F. Seiler Stepped dimpled mounting brackets for heat exchangers
US6467536B1 (en) * 1999-12-22 2002-10-22 Visteon Global Technologies, Inc. Evaporator and method of making same
DE10237648A1 (en) * 2002-08-13 2004-02-26 Behr Gmbh & Co. Heat transmitter of parallel flat tubes fits open tube ends into contour-matched manifold for fluid transfer steadying tubes by outside and center stays.
FR2880671B1 (en) * 2005-01-12 2007-04-06 Valeo Systemes Thermiques TUBE BIT FOR HYDRAULIC CIRCUIT ELEMENT, ESPECIALLY FOR HEAT EXCHANGER
SE530574C2 (en) * 2006-11-20 2008-07-08 Alfa Laval Corp Ab plate heat exchangers
DE102008053308A1 (en) * 2008-10-27 2010-04-29 Behr Industry Gmbh & Co. Kg heat exchangers
JP2022117538A (en) * 2021-02-01 2022-08-12 パナソニックＩｐマネジメント株式会社 Plate fin lamination type heat exchanger and refrigeration system using the same
FR3135830A1 (en) * 2022-05-20 2023-11-24 Valeo Systemes Thermiques Thermal regulation device, in particular cooling for motor vehicles.

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FR2337867A1 (en) * 1976-01-12 1977-08-05 Chausson Usines Sa HEAT EXCHANGER WITH THICK COLLECTORS
FR2479438A1 (en) 1980-03-26 1981-10-02 Chausson Usines Sa EXCHANGER FOR COOLING A HIGH TEMPERATURE FLUID
FR2563899A1 (en) * 1984-05-04 1985-11-08 Piemontese Radiatori Vehicle oil cooler with flat connecting tubes
EP0324226A1 (en) * 1988-01-12 1989-07-19 Thermag Industries Inc Heat exchanger with individual headers

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2834336A1 (en) * 2001-12-28 2003-07-04 Valeo Thermique Moteur Sa CIRCUIT ELEMENT FOR A HEAT EXCHANGER, ESPECIALLY A MOTOR VEHICLE AND A HEAT EXCHANGER THUS OBTAINED
WO2003056268A1 (en) * 2001-12-28 2003-07-10 Valeo Thermique Moteur Circuit element for heat exchanger, in particular for motor vehicle and resulting heat exchanger
FR2947045A1 (en) * 2009-06-23 2010-12-24 Valeo Systemes Thermiques HEAT EXCHANGER BLOCK, ESPECIALLY FOR AIR CONDITIONING CONDENSER
WO2010149452A1 (en) * 2009-06-23 2010-12-29 Valeo Systemes Thermiques Heat-exchanger unit, in particular for an air-conditioning condenser

Also Published As

Publication number Publication date
FR2721099B1 (en) 1996-07-19
FR2721099A1 (en) 1995-12-15
DE69521843D1 (en) 2001-08-30
US5634519A (en) 1997-06-03
DE69521843T2 (en) 2002-04-04
EP0686823B1 (en) 2001-07-25

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