EP2310788B1 - Heat exchanger comprising a heat exchanger bundle and a housing - Google Patents

Heat exchanger comprising a heat exchanger bundle and a housing Download PDF

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Publication number
EP2310788B1
EP2310788B1 EP09769214.9A EP09769214A EP2310788B1 EP 2310788 B1 EP2310788 B1 EP 2310788B1 EP 09769214 A EP09769214 A EP 09769214A EP 2310788 B1 EP2310788 B1 EP 2310788B1
Authority
EP
European Patent Office
Prior art keywords
housing
heat exchanger
heat
plates
exchanger according
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.)
Active
Application number
EP09769214.9A
Other languages
German (de)
French (fr)
Other versions
EP2310788A1 (en
Inventor
Paul Garret
Philippe Faille
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 Systemes Thermiques SAS
Original Assignee
Valeo Systemes Thermiques SAS
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Publication date
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Priority to PL09769214T priority Critical patent/PL2310788T3/en
Publication of EP2310788A1 publication Critical patent/EP2310788A1/en
Application granted granted Critical
Publication of EP2310788B1 publication Critical patent/EP2310788B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • 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
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • 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
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0082—Charged air coolers
    • 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
    • F28F2009/0285—Other particular headers or end plates
    • F28F2009/029—Other particular headers or end plates with increasing or decreasing cross-section, e.g. having conical shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2220/00—Closure means, e.g. end caps on header boxes or plugs on conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/04—Fastening; Joining by brazing

Definitions

  • the invention relates to the field of heat exchangers, especially for motor vehicles.
  • This type of exchanger is used in particular as a charge air cooler of a motor vehicle engine.
  • the gas to be cooled is the charge air (or a mixture of charge air and recirculated exhaust gas). After having passed through the heat exchanger, the air is admitted into the heat engine through an air distributor.
  • the document DE 199 02 504 proposes a heat exchanger in which the charge air is cooled by a coolant which, in this case, is coolant, ie water added with glycol from a so-called low temperature circuit of a motor vehicle.
  • a coolant which, in this case, is coolant, ie water added with glycol from a so-called low temperature circuit of a motor vehicle.
  • This exchanger comprises a heat exchange bundle housed in a plastic housing closed by a cover.
  • the aim of the invention is to improve the situation by proposing an exchanger which, in particular, makes it possible to improve the resistance to pressure.
  • the invention proposes a heat exchanger according to claim 1.
  • Such a heat exchanger has, moreover, the advantage of having an easier assembly. Indeed, it is possible to envisage with such a configuration an assembly of the heat exchange bundle and the housing in a single step.
  • the invention relates to a heat exchanger 10 having a heat exchange beam 12 and a housing 14 inside which is housed the beam 12 of heat exchange.
  • the heat exchange bundle is produced, in a manner known to those skilled in the art, by stacking plates 16 and corrugated inserts (not shown).
  • the beam 12 has an inlet and an outlet for the charge air.
  • the plates 16 may be, for example, stamped plates having two bosses provided with openings.
  • the plates 16 are arranged in pairs and the respective bosses of a plate belonging to a pair are in communication with the respective bosses of a neighboring plate belonging to a pair of neighboring plates. This makes it possible to establish a fluid communication, in this case heat transfer liquid, between the respective pairs of plates.
  • the figure 1 represents a heat exchanger from which an upper part of the housing has been removed in order to reveal the structure of a plate 16 of the heat exchange bundle 12.
  • the plate 16 comprises a series of first so-called contiguous stampings allowing the definition of channels and returns for circulation in passes of the coolant.
  • the plate 16 has four channels and three returns for the definition of four circulation passes for the coolant.
  • the plate 16 further comprises a second series of stampings, shallower than the first series of stampings described above. This second series of stampings is placed in the different circulation passages of the coolant. These stampings are capable of disturbing the circulation of the coolant liquid thus improving the heat exchange between the latter of the charge air.
  • the heat exchange bundle 10 further comprises corrugated inserts (not visible on the Figures 1 and 2 ) each disposed between pairs of neighboring plates and brazed to the plates 16. The supercharging air flows between each pair of plates through the corrugated inserts.
  • the beam 12 defines first channels for the gas to be cooled, in which the corrugated inserts are present, and second channels for the circulation of the coolant.
  • the heat transfer fluid may be engine coolant, that is to say glycol-added water from, for example, a so-called low temperature circuit of the motor vehicle.
  • the charge air is thus cooled by the coolant which enters the bundle 12, for example, through an inlet manifold 18, circulates in the second channels of the bundle for exchanging heat with the cooling air. supercharging to cool and then leaves the beam, for example, through the outlet pipe 20.
  • the heat exchange bundle 12 is housed inside a housing 14 and is brazed to the latter.
  • the housing 14 comprises a body having at least one open face.
  • the housing 14 may be metallic and in particular aluminum or aluminum alloy.
  • the housings 14 comprise two open faces located opposite each other. These open faces are opposite the inlet and the outlet for the supercharging air of the heat exchange bundle 12.
  • Such a configuration allows the body to define a frame around the open face (s).
  • the housing body 14 is formed by at least a first and a second portion assembled together by brazing.
  • the housing body has four distinct parts 30; 32; 34 and 36 visible more distinctly at the level of the figure 2 .
  • a single plate 16 of the heat exchange bundle has been shown for the sake of simplification.
  • the four parts 30; 32; 34 and 36 are made in the form of four substantially rectangular plates.
  • the casing 14 has a parallelepipedal shape comprising four solid faces including: a so-called bottom face 36, a so-called upper face 32, two so-called lateral faces 30 and 34 and two open faces facing one another the other. These open faces allow the circulation of the supercharging air in the heat exchange bundle 12.
  • the housing 14 has two pipes 18 and 20 for the inlet and the outlet, in the exchanger 10 of a heat transfer fluid.
  • the pipes 18 and 20 are provided at one of said parts 30; 32; 34; 36 of the housing 14.
  • the pipes 18 and 20 are located on the upper face 32.
  • the bottom face 36 and the upper face 32 and the two lateral faces 30 and 34 are respectively located vis-à-vis one another.
  • At least one of the parts forming the casing 14 is in contact with one end of each of the plates 16 of the stack of plates of the heat exchange bundle 12.
  • the first part of the casing 14 is made in the form of the upper face 32 and / or of the bottom face 36.
  • the second part of the casing 14, for its part, comprises at least one of the two faces side 30 or 34 or both.
  • the two lateral faces 30 and 34 are located facing each other and on either side of the open face of the housing 14. They are both in contact with all the plates 16 forming the stack of plates of the heat exchange bundle 12, each of the lateral faces being in contact with one end of said plates 16.
  • each plate 16 has two sides in contact, via a contact surface, respectively with each of the lateral faces 30 and 34 of the housing 14.
  • each plate 16 is brazed over the entire contact area.
  • brazing between a plate 16 and a side face of the housing is performed over the entire contact surface between these two elements.
  • the lateral faces 30 and 34 serve as a stop for the upper part 32.
  • These lateral parts 30 and 34 also make it possible to guarantee the generally parallelepipedal geometry of the housing 14 of FIG. the heat exchanger 10.
  • the beam 12 of heat exchange is composed, as explained above plates 16 and spacers.
  • these different elements lose height because they contain on their surface a solder plating that melts during the soldering operation. This phenomenon of loss of height between the assembled product and the brazed product is also known as the "expansion" product.
  • the side faces 30 and 34 are in contact with the small sides of said plates 16.
  • small sides the sides of the plates 16 located opposite one of the another, one of which comprises, in this embodiment, the bosses.
  • a non-illustrated embodiment proposes that the second portion of the housing 14 has a U-shape and the first portion of the housing 14 forms a cover for the second portion.
  • a housing body in two parts, namely a U-shaped portion (said second portion) having a bottom face and two side faces forming the wings of the U and another part, for example plane, closing the volume of the second part.
  • first part of the housing 14 has a degree of freedom with respect to the second portion of the housing 14 in the stacking direction of the plates 16 of the heat exchange bundle 12.
  • This degree of freedom is obtained by the cooperation of at least one tongue 42 located on the second part of the housing 14 with a recess or punch 46 located on the first part of the housing 14.
  • the tabs 42 allow, during the brazing operation, the bottom face 36 and the upper face 32 to slide relative to the side parts 30 and 34 and thus accompany the loss of height of the beam 12 of heat exchange, this loss being, as a reminder, due to the phenomenon of expansion.
  • the tongue 42 and the recess 46 are thus mutual assembly means arranged to manage / control the expansion of the heat exchanger 10.
  • these assembly means also have the advantage of being self-centering means of the first part of the casing 14 on the second part of the casing 14.
  • the tabs 42 of the side faces 30 and 34 are in abutment outside the recesses 46 of the upper face 32 and the bottom face 36. This has the advantage of not having to rest laterally on the lateral faces 30 and 34 during brazing. Thus, only a vertical force is exerted on the upper face 32 and the bottom face 36 during brazing, which allows the housing to self-center.
  • the tongues 42 extend here in substantially the same direction as that of the stack of the plates of the heat exchange bundle 12.
  • each of the lateral faces 30 and 34 comprises two tongues 42 on each side of the lateral faces 30 and 34 in contact respectively with the upper face 32 and the bottom face 36.
  • each second part of the housing 14 or, here, lateral face 30 or 34 comprises, on two of these sides located opposite each other, two tabs 42 able to cooperate. with a recess 46 situated opposite these tabs 42 on the first part of the casing 14, or, here, upper face 32 and bottom face 36.
  • each lateral face 30 and 34 further comprises at least one raised edge 44, said first raised edge 44 or assembly edge of the housing.
  • the first raised edge 44 extends here substantially at right angles to the general extension plane of the side face on which it is formed.
  • This first raised edge or assembly edge of the housing 44 is formed by folding material of each side face 30 or 34.
  • the first raised edge 44 is arranged on the portions of the lateral faces 30 and 34 in contact respectively with the upper face 32 and the bottom face 36.
  • the tabs 42 are obtained by cutting and folding the first raised edge 44.
  • the second portion of the housing 14 has at least one raised edge 44 provided with a tongue 42 and the tongue 42 is adapted to cooperate with a recess 46 of the first part.
  • the first raised edge 44 or assembly edge of the housing thus collaborates in assembling the various elements of the housing 14.
  • each part 30; 32; 34 and 36 forming the housing 14 comprises at least one assembly means 42; 46 and / or 44 adapted to cooperate with the adjacent portion so as to assemble the housing 14.
  • the brazing of the lateral faces on the upper face 32 and the bottom face 36 makes it possible to obtain a reinforced sealing of the casing 14 by decreasing thus the risk of overfeeding air leakage.
  • the configuration of the heat exchanger 10 it is possible to achieve, in a single step, during the brazing operation, the assembly of all the components of the heat exchange beam 12 with those composing the case 14.
  • the heat exchanger 10 may also have the characteristic that at least two contiguous parts of the body of the casing 14 comprise means for creating a bearing surface for a collector 48.
  • collector means both a cover and a cover. intake air distributor for the engine.
  • each manifold 48 is an inlet or outlet cover for the charge air.
  • These collectors 48 are respectively provided with a gas inlet pipe and at least one gas outlet pipe.
  • each of the four parts 30; 32; 34 and 36 forming the housing 14 comprises means 40 for creating a bearing surface for a manifold and this for each open face of the housing.
  • each of the open faces of the body of the casing 14 is bordered at least in part by the means 40 to create a bearing surface for a collector 48.
  • the housing body is formed by at least two parts joined together by brazing and at least two of said parts are provided contiguous and comprise means 40 for creating a bearing surface for a collector 48.
  • the means 40 for creating the bearing surface for the collector 48 thus serve as an interface between the body of the housing 14 and the collector or collectors 48.
  • the means for creating a bearing surface are second raised edges 40 that may also be called collector assembly edge.
  • the means 40 for creating a bearing surface are, here, constituted by raised edges 40 or collector assembly edge 40.
  • the second raised edges 40 of a portion 30; 32; 34 or 36 extend substantially perpendicular to the general extension plane of said portion.
  • the parts 30; 32; 34; 36 of the housing body 14 each consist of a plate provided on at least a portion of its periphery means 40 to create a bearing surface, these means being here constituted by raised edges said collector assembly edge 40.
  • each part 30; 32; 34 or 36 has at least a second raised edge in contact with the second raised edge of the contiguous portion at one of its ends so as to define the bearing surface over the entire periphery of the open face of the body of the housing .
  • the bearing surface formed by the second raised edges 40 is here planar.
  • This flat surface is intended to create a "continuous" bearing face that can be used to weld a collector or a flange having a circumference also flat so as to obtain a sealed weld.
  • the second raised edge of portion 36 (or bottom face) is in contact with both the raised second edge of portion 30 (or side face 30) and the second raised edge of portion 34 (or lateral face 34).
  • the second raised edge of portion 32 (or upper face) is in contact with both the raised edge of portion 30 (or side face 30) and the second raised edge of portion 34 ( or side face 34).
  • the frame surrounding an open face of the body of the casing 14 comprises a series of second edges raised all around its periphery, each second raised edge 40 or collector assembly edge 40 being in contact at each of its ends with another second raised edge 40.
  • the second raised edges form a border around the frame surrounding the open face of the casing body 14. This border serves as an interface between the casing 14 and the collector 48.
  • the second raised edges 40 are connected by a solder joint.
  • the side faces 30 and 34 can therefore be seen as substantially rectangular plates having a perimeter or perimeter bordered by two series of raised edges, these raised edges being composed of two first 44 and two second 40 raised edges, each of the members different categories of raised edges being located vis-à-vis the member of the same category of raised edges.
  • the first raised edges 44 having the function of intervening for the assembly of the housing 14 and the second raised edge 40 serving to assemble a manifold 48 on the body of the housing 14.
  • At least one of the parts 30; 32; 34 or 36 of the housing 14 has a periphery bordered by raised edges, these raised edges being composed, here, of two first 44 and two second 40 raised edges, the first raised edges 44 involved in the assembly of the housing 14 and the second raised edge 40 involved in the assembly of a manifold 48 on the housing 14.
  • the side faces 30 and 34 are surrounded, here over: their entire periphery, with a rib formed by the first raised edges 44 and the second raised edges 40. This rib contributes to the mechanical strength of the exchanger of heat 10.
  • the assembly or collectors 48 on the housing 14 is made, for example by welding the collector or collectors on the edge formed by the second raised edges 40 around the frame surrounding the open face of the body of the housing 14.
  • the collectors may for example be aluminum housings, preferably obtained by the die-casting process.
  • An embodiment of the invention further proposes that at least one of the portions 30; 32; 34 or 36 has local deformations capable of reducing brazing games with another part 30; 32; 34 or 36, this other portion being contiguous with the portion 30; 32; 34 or 36 with local deformations.
  • each part 30; 32; 34 and 36 includes local deformations capable of reducing brazing between the different parts of the housing and thus improve the continuity of the flat surface forming an interface with the collector.
  • the upper face 32 and the bottom face 36 have a width slightly greater than that of the plates of the heat exchange bundle. In this way, the welding zone of the collector is removed from the brazed zones.
  • width is meant here the distance separating two sides, either of the upper face 32 or of bottom 36, or of a plate 16, in the direction of circulation of the supercharging air in the heat exchanger. In other words, in the direction of the small sides of the plates 16.
  • the figure 3 proposes an embodiment of the invention, in which the supercharging air outlet manifold is constructed as an intake air distributor 48-B for the engine.
  • An intake air distributor for the engine allows communication, through orifices, with at least a portion of the inlet ducts of the engine intake chambers.
  • this distributor serves as an interface between the heat exchanger and the cylinder head of the engine on which the heat exchanger 10 'is mounted.
  • This distributor is also known under its English name “intake manifold”. It is attached to the cylinder head of the combustion chamber.
  • the inlet of the charge air into the heat exchanger is via an input box 48-A, the housing here is made in the form of a cover .
  • the output of the supercharging air of the heat exchanger 10 ' is, for its part, via a distributor 48-B, which here serves as an outlet box for the charge air .
  • the side faces 34 'of the housing of the heat exchanger comprises, in this mode of realization, reinforcement ribs 50, here, three in number.

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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)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)

Description

L'invention concerne le domaine des échangeurs de chaleur, notamment pour véhicules automobiles.The invention relates to the field of heat exchangers, especially for motor vehicles.

Elle concerne plus particulièrement un échangeur chaleur selon le préambule de la revendication 1. Un tel échangeur est connu du EP 1348 942 A2 .It relates more particularly to a heat exchanger according to the preamble of claim 1. Such an exchanger is known from EP 1348 942 A2 .

Ce type d'échangeur est notamment utilisé en tant que refroidisseur d'air de suralimentation d'un moteur thermique de véhicule automobile.This type of exchanger is used in particular as a charge air cooler of a motor vehicle engine.

Dans ce cas, le gaz à refroidir est l'air de suralimentation (ou un mélange d'air de suralimentation et de gaz d'échappement recirculés). Après avoir traversé l'échangeur de chaleur, l'air est admis dans le moteur thermique au travers d'un répartiteur d'air.In this case, the gas to be cooled is the charge air (or a mixture of charge air and recirculated exhaust gas). After having passed through the heat exchanger, the air is admitted into the heat engine through an air distributor.

Le document DE 199 02 504 propose un échangeur de chaleur dans lequel l'air de suralimentation est refroidi par un fluide caloporteur qui, dans ce cas, est du liquide de refroidissement, c'est à dire de l'eau additionnée de glycol provenant d'un circuit dit basse température de véhicule automobile.The document DE 199 02 504 proposes a heat exchanger in which the charge air is cooled by a coolant which, in this case, is coolant, ie water added with glycol from a so-called low temperature circuit of a motor vehicle.

Cet échangeur comporte un faisceau d'échange de chaleur logé dans un boîtier plastique fermé par un couvercle.This exchanger comprises a heat exchange bundle housed in a plastic housing closed by a cover.

Un tel échangeur présente, cependant, des difficultés, notamment, en terme de résistance à la pression.Such an exchanger has, however, difficulties, especially in terms of pressure resistance.

L'invention vise à améliorer la situation en proposant un échangeur qui, notamment, permet d'améliorer la résistance à la pression.The aim of the invention is to improve the situation by proposing an exchanger which, in particular, makes it possible to improve the resistance to pressure.

A cet effet, l'invention propose un échangeur de chaleur selon la revendication 1.For this purpose, the invention proposes a heat exchanger according to claim 1.

Le fait qu'une au moins une des parties formant le boîtier soit en contact avec une extrémité de chacune des plaques de l'empilement du faisceau d'échange de chaleur permet à l'échangeur de chaleur d'être plus résistant aux différentes contraintes mécaniques que subit l'échangeur de chaleur lors de son utilisation dans un véhicule automobile.The fact that at least one of the parts forming the casing are in contact with one end of each of the plates of the stack of the heat exchange bundle allows the heat exchanger to be more resistant to different mechanical stresses. that the heat exchanger undergoes when it is used in a motor vehicle.

Un tel échangeur de chaleur présente, en outre, l'avantage de présenter un assemblage plus aisé. En effet, il est possible d'envisager avec une telle configuration un assemblage du faisceau d'échange de chaleur et du boîtier en une seule étape.Such a heat exchanger has, moreover, the advantage of having an easier assembly. Indeed, it is possible to envisage with such a configuration an assembly of the heat exchange bundle and the housing in a single step.

D'autres avantages et caractéristiques de l'invention apparaîtront mieux à la lecture de la description à titre illustratif et non limitatif d'exemples issus des figures sur les dessins annexés dans lesquels :

  • La figure 1 représente une vue partiellement assemblée de l'échangeur de chaleur selon la présente invention.
  • La figure 2 représente une vue éclatée, simplifiée, de l'échangeur de chaleur selon la présente invention.
  • La figure 3 représente un mode de réalisation de l'invention, dans lequel le boîtier de sortie de l'air de suralimentation est un répartiteur d'air d'admission pour le moteur.
Other advantages and characteristics of the invention will appear better on reading the description by way of illustration and without limitation of examples from the figures in the accompanying drawings in which:
  • The figure 1 represents a partially assembled view of the heat exchanger according to the present invention.
  • The figure 2 is an exploded, simplified view of the heat exchanger according to the present invention.
  • The figure 3 represents an embodiment of the invention, wherein the charge air outlet housing is an intake air distributor for the engine.

L'invention concerne un échangeur de chaleur 10 comportant un faisceau 12 d'échange de chaleur et un boîtier 14 à l'intérieur duquel est logé le faisceau 12 d'échange de chaleur.The invention relates to a heat exchanger 10 having a heat exchange beam 12 and a housing 14 inside which is housed the beam 12 of heat exchange.

Le faisceau d'échange de chaleur est réalisé, de façon connue de l'homme du métier, par empilement de plaques 16 et d'intercalaires ondulés (non représentés). Le faisceau 12 comporte une entrée et une sortie pour l'air de suralimentation.The heat exchange bundle is produced, in a manner known to those skilled in the art, by stacking plates 16 and corrugated inserts (not shown). The beam 12 has an inlet and an outlet for the charge air.

Les plaques 16 pourront être, par exemple, des plaques embouties comportant deux bossages munis d'ouvertures. Les plaques 16 sont disposées par paires et les bossages respectifs d'une plaque appartenant à une paire sont en communication avec les bossages respectifs d'une plaque voisine appartenant à une paire de plaques voisines. Ceci permet d'établir une communication de fluide, ici du liquide caloporteur, entre les paires de plaques respectives.The plates 16 may be, for example, stamped plates having two bosses provided with openings. The plates 16 are arranged in pairs and the respective bosses of a plate belonging to a pair are in communication with the respective bosses of a neighboring plate belonging to a pair of neighboring plates. This makes it possible to establish a fluid communication, in this case heat transfer liquid, between the respective pairs of plates.

La figure 1 représente un échangeur de chaleur dont on a enlevé une partie supérieure du boîtier dans le but de faire apparaître la structure d'une plaque 16 du faisceau 12 d'échange de chaleur.The figure 1 represents a heat exchanger from which an upper part of the housing has been removed in order to reveal the structure of a plate 16 of the heat exchange bundle 12.

Dans cet exemple de réalisation, la plaque 16 comporte une série de premiers emboutis dits jointifs permettant la définition de canaux et de retours pour la circulation en passes du fluide caloporteur. Ici, la plaque 16 comporte quatre canaux et trois retours permettant la définition de quatre passes de circulation pour le liquide caloporteur.In this exemplary embodiment, the plate 16 comprises a series of first so-called contiguous stampings allowing the definition of channels and returns for circulation in passes of the coolant. Here, the plate 16 has four channels and three returns for the definition of four circulation passes for the coolant.

La plaque 16 comporte en outre une seconde série d'emboutis, moins profond que la première série d'emboutis décrite plus haut. Cette seconde série d'emboutis est placée dans les différentes passes de circulation du liquide caloporteur. Ces emboutis sont aptes à perturber la circulation du liquide caloporteur améliorant ainsi l'échange de chaleur entre ce dernier de l'air de suralimentation.The plate 16 further comprises a second series of stampings, shallower than the first series of stampings described above. This second series of stampings is placed in the different circulation passages of the coolant. These stampings are capable of disturbing the circulation of the coolant liquid thus improving the heat exchange between the latter of the charge air.

Le faisceau d'échange de chaleur 10 comporte en outre des intercalaires ondulés (non visible sur les figures 1 et 2) disposés à chaque fois entre des paires de plaques voisines et brasés aux plaques 16. L'air de suralimentation circule entre chaque paire de plaque à travers les intercalaires ondulés.The heat exchange bundle 10 further comprises corrugated inserts (not visible on the Figures 1 and 2 ) each disposed between pairs of neighboring plates and brazed to the plates 16. The supercharging air flows between each pair of plates through the corrugated inserts.

Autrement dit, le faisceau 12 délimite des premiers canaux pour le gaz à refroidir, dans lesquels sont présents les intercalaires ondulés, et des seconds canaux pour la circulation du liquide caloporteur. Dans le mode de réalisation proposé, le liquide caloporteur pourra être du liquide de refroidissement moteur, c'est-à-dire de l'eau additionnée de glycol, provenant, par exemple d'un circuit dit basse température du véhicule automobile.In other words, the beam 12 defines first channels for the gas to be cooled, in which the corrugated inserts are present, and second channels for the circulation of the coolant. In the proposed embodiment, the heat transfer fluid may be engine coolant, that is to say glycol-added water from, for example, a so-called low temperature circuit of the motor vehicle.

L'air de suralimentation est, ainsi, refroidi par le liquide de refroidissement qui pénètre dans le faisceau 12, par exemple, par une tubulure d'entrée 18, circule dans les seconds canaux du faisceau pour échanger de la chaleur avec l'air de suralimentation à refroidir et quitte ensuite le faisceau, par exemple, par la tubulure de sortie 20.The charge air is thus cooled by the coolant which enters the bundle 12, for example, through an inlet manifold 18, circulates in the second channels of the bundle for exchanging heat with the cooling air. supercharging to cool and then leaves the beam, for example, through the outlet pipe 20.

Le faisceau 12 d'échange de chaleur est logé à l'intérieur d'un boîtier 14 et est brasé à ce dernier. Dans les exemples représentés aux figures 1 à 3, le boîtier 14 comporte un corps présentant au moins une face ouverte. Le boîtier 14 pourra être métallique et notamment en aluminium ou en alliage d'aluminium.The heat exchange bundle 12 is housed inside a housing 14 and is brazed to the latter. In the examples shown in Figures 1 to 3 , the housing 14 comprises a body having at least one open face. The housing 14 may be metallic and in particular aluminum or aluminum alloy.

Dans les modes de réalisation illustrés dans la présente demande, les boîtiers 14 comportent deux faces ouvertes situées en vis-à-vis l'une de l'autre. Ces faces ouvertes se trouvent en vis-à-vis de l'entrée et de la sortie pour l'air de suralimentation du faisceau 12 d'échange de chaleur.In the embodiments illustrated in the present application, the housings 14 comprise two open faces located opposite each other. These open faces are opposite the inlet and the outlet for the supercharging air of the heat exchange bundle 12.

Une telle configuration permet au corps de définir un cadre autour de la ou des face(s) ouverte(s).Such a configuration allows the body to define a frame around the open face (s).

Le corps du boîtier 14 est formé par au moins une première et une deuxième parties assemblées entre elles par brasage. Dans le mode de réalisation illustré aux figures 1 et 2, le corps du boîtier présente quatre parties distinctes 30 ; 32 ; 34 et 36 visibles de manière plus distincte au niveau de la figure 2. Dans cette vue éclatée de l'échangeur de chaleur, une seule plaque 16 du faisceau d'échange de chaleur a été représentée dans un souci de simplification.The housing body 14 is formed by at least a first and a second portion assembled together by brazing. In the embodiment illustrated in Figures 1 and 2 the housing body has four distinct parts 30; 32; 34 and 36 visible more distinctly at the level of the figure 2 . In this exploded view of the heat exchanger, a single plate 16 of the heat exchange bundle has been shown for the sake of simplification.

Ici, les quatre parties 30 ; 32 ; 34 et 36 sont réalisés sous la forme de quatre plaques sensiblement rectangulaires.Here, the four parts 30; 32; 34 and 36 are made in the form of four substantially rectangular plates.

Autrement dit, le boîtier 14 présente une forme parallélépipédique comportant quatre faces pleines dont : une face dite de fond 36, une face dite supérieure 32, deux faces dites latérales 30 et 34 et deux faces ouvertes situées en vis-à-vis l'une de l'autre. Ces faces ouvertes permettent la circulation de l'air de suralimentation dans le faisceau d'échange de chaleur 12.In other words, the casing 14 has a parallelepipedal shape comprising four solid faces including: a so-called bottom face 36, a so-called upper face 32, two so-called lateral faces 30 and 34 and two open faces facing one another the other. These open faces allow the circulation of the supercharging air in the heat exchange bundle 12.

Le boîtier 14 comporte deux tubulures 18 et 20 pour l'entrée et la sortie, dans l'échangeur 10 d'un fluide caloporteur. Les tubulures 18 et 20 sont prévues au niveau de l'une desdites parties 30 ; 32 ; 34 ; 36 du boîtier 14. Ici, les tubulures 18 et 20 sont situées sur la face supérieure 32.The housing 14 has two pipes 18 and 20 for the inlet and the outlet, in the exchanger 10 of a heat transfer fluid. The pipes 18 and 20 are provided at one of said parts 30; 32; 34; 36 of the housing 14. Here, the pipes 18 and 20 are located on the upper face 32.

Ici, la face de fond 36 et la face supérieure 32 et les deux faces latérales 30 et 34 sont respectivement situées en vis-à-vis l'une de l'autre.Here, the bottom face 36 and the upper face 32 and the two lateral faces 30 and 34 are respectively located vis-à-vis one another.

L'une au moins des parties formant le boîtier 14 est en contact avec une extrémité de chacune des plaques 16 de l'empilement de plaques du faisceau 12 d'échange de chaleur.At least one of the parts forming the casing 14 is in contact with one end of each of the plates 16 of the stack of plates of the heat exchange bundle 12.

Dans le mode de réalisation illustré aux figures 1 et 2, il s'agit d'une partie appelée deuxième partie qui est en contact avec une extrémité de chacune des plaques 16, la deuxième partie étant réalisé, ici, sous la forme d'au moins une des faces latérales 30 ou 34.In the embodiment illustrated in Figures 1 and 2 it is a part called the second part which is in contact with one end of each of the plates 16, the second part being produced here in the form of at least one of the lateral faces 30 or 34.

En d'autres termes, la première partie du boîtier 14 est réalisée sous la forme de la face supérieure 32 et/ou de la face de fond 36. La deuxième partie du boîtier 14, quant à elle, comporte au moins une des deux faces latérales 30 ou 34 voire les deux.In other words, the first part of the casing 14 is made in the form of the upper face 32 and / or of the bottom face 36. The second part of the casing 14, for its part, comprises at least one of the two faces side 30 or 34 or both.

Ici, les deux faces latérales 30 et 34 sont situées en vis-à-vis l'une de l'autre et de part et d'autre de la face ouverte du boîtier 14. Elles sont toutes deux en contact avec l'ensemble des plaques 16 formant l'empilement de plaques du faisceau d'échange de chaleur 12, chacune des faces latérales étant en contact avec une extrémité desdites plaques 16.Here, the two lateral faces 30 and 34 are located facing each other and on either side of the open face of the housing 14. They are both in contact with all the plates 16 forming the stack of plates of the heat exchange bundle 12, each of the lateral faces being in contact with one end of said plates 16.

On remarquera que, dans ce mode de réalisation, chaque plaque 16 comporte deux cotés en contact, par l'intermédiaire d'une surface de contact, respectivement avec chacune des faces latérales 30 et 34 du boîtier 14. Ici, chaque plaque 16 est brasée sur la totalité de la surface de contact. Autrement dit, dans cet exemple, le brasage entre une plaque 16 et une face latérale du boîtier s'effectue sur l'ensemble de la surface de contact entre ces deux éléments.It will be noted that, in this embodiment, each plate 16 has two sides in contact, via a contact surface, respectively with each of the lateral faces 30 and 34 of the housing 14. Here, each plate 16 is brazed over the entire contact area. In other words, in this example, brazing between a plate 16 and a side face of the housing is performed over the entire contact surface between these two elements.

Cette caractéristique permet notamment à l'échangeur de chaleur d'être encore plus résistant aux différentes contraintes mécaniques que subit l'échangeur de chaleur lors de son utilisation dans un véhicule automobile et notamment la tenue à la pression.This characteristic makes it possible in particular for the heat exchanger to be even more resistant to the various mechanical stresses that the heat exchanger undergoes when it is used in a motor vehicle and in particular the pressure resistance.

Lors du brasage des différents éléments de l'échangeur de chaleur, les faces latérales 30 et 34 servent de butée d'arrêt pour la partie supérieure 32. Ces pièces latérales 30 et 34 permettent en outre de garantir la géométrie globalement parallélépipédique du boîtier 14 de l'échangeur de chaleur 10.During the soldering of the various elements of the heat exchanger, the lateral faces 30 and 34 serve as a stop for the upper part 32. These lateral parts 30 and 34 also make it possible to guarantee the generally parallelepipedal geometry of the housing 14 of FIG. the heat exchanger 10.

En effet, le faisceau 12 d'échange de chaleur est composé, comme expliqué plus haut de plaques 16 et d'intercalaires. Lors du brasage, ces différents éléments perdent de la hauteur, car elles contiennent à leur surface un placage de brasage qui fond pendant l'opération de brasage. Ce phénomène de perte de hauteur entre produit assemblé et produit brasé est aussi connu sous le nom de « foisonnement » produit.Indeed, the beam 12 of heat exchange is composed, as explained above plates 16 and spacers. During brazing, these different elements lose height because they contain on their surface a solder plating that melts during the soldering operation. This phenomenon of loss of height between the assembled product and the brazed product is also known as the "expansion" product.

Dans le mode de réalisation représenté, ici, les faces latérales 30 et 34 sont en contact avec les petits cotés desdites plaques 16. On appelle « petits cotés », les cotés des plaques 16 situés en vis-à-vis l'un de l'autre dont l'un comporte, dans ce mode de réalisation les bossages.In the embodiment shown here, the side faces 30 and 34 are in contact with the small sides of said plates 16. The term "small sides", the sides of the plates 16 located opposite one of the another, one of which comprises, in this embodiment, the bosses.

Un mode de réalisation non illustré propose que la deuxième partie du boîtier 14 comporte une forme en U et que la première partie du boîtier 14 forme un couvercle pour la deuxième partie. Autrement dit, il est possible de prévoir un corps de boîtier en deux parties, à savoir une partie en forme de U (dite deuxième partie) comportant une face de fond et deux faces latérales formant les ailes du U et une autre partie, par exemple plane, fermant le volume de la deuxième partie.A non-illustrated embodiment proposes that the second portion of the housing 14 has a U-shape and the first portion of the housing 14 forms a cover for the second portion. In other words, it is possible to provide a housing body in two parts, namely a U-shaped portion (said second portion) having a bottom face and two side faces forming the wings of the U and another part, for example plane, closing the volume of the second part.

Il est en outre prévu, que la première partie du boîtier 14 présente un degré de liberté par rapport à la deuxième partie du boîtier 14 dans le sens de l'empilement des plaques 16 du faisceau d'échange de chaleur 12.It is further provided that the first part of the housing 14 has a degree of freedom with respect to the second portion of the housing 14 in the stacking direction of the plates 16 of the heat exchange bundle 12.

Ce degré de liberté est obtenu par la coopération d'au moins une languette 42 située sur la deuxième partie du boîtier 14 avec un évidement ou poinçonnage 46 situé sur la première partie du boîtier 14.This degree of freedom is obtained by the cooperation of at least one tongue 42 located on the second part of the housing 14 with a recess or punch 46 located on the first part of the housing 14.

En effet, les languettes 42 permettent, lors de l'opération de brasage, à la face de fond 36 et à la face supérieure 32 de coulisser par rapport au pièces latérales 30 et 34 et d'accompagner ainsi la perte de hauteur du faisceau 12 d'échange de chaleur, cette perte étant, pour rappel, due au phénomène de foisonnement.Indeed, the tabs 42 allow, during the brazing operation, the bottom face 36 and the upper face 32 to slide relative to the side parts 30 and 34 and thus accompany the loss of height of the beam 12 of heat exchange, this loss being, as a reminder, due to the phenomenon of expansion.

La languette 42 et l'évidement 46 sont ainsi des moyens d'assemblage mutuels agencés de manière à gérer/contrôler le foisonnement de l'échangeur de chaleur 10.The tongue 42 and the recess 46 are thus mutual assembly means arranged to manage / control the expansion of the heat exchanger 10.

En outre, ces moyens d'assemblage présentent aussi l'avantage d'être des moyens d'autocentrage de la première partie du boîtier 14 sur la deuxième partie du boîtier 14.In addition, these assembly means also have the advantage of being self-centering means of the first part of the casing 14 on the second part of the casing 14.

En effet, les languettes 42 des faces latérales 30 et 34 sont en appuis à l'extérieur des évidements 46 de la face supérieure 32 et de la face de fond 36. Ceci présente l'avantage de ne pas devoir appuyer latéralement sur les faces latérales 30 et 34 pendant le brasage. Ainsi, seul un effort vertical est exercé sur la face supérieure 32 et de la face de fond 36 pendant le brasage, ce qui permet au boîtier de s'auto-centrer.Indeed, the tabs 42 of the side faces 30 and 34 are in abutment outside the recesses 46 of the upper face 32 and the bottom face 36. This has the advantage of not having to rest laterally on the lateral faces 30 and 34 during brazing. Thus, only a vertical force is exerted on the upper face 32 and the bottom face 36 during brazing, which allows the housing to self-center.

Les languettes 42 s'étendent, ici, selon sensiblement la même direction que celui de l'empilement des plaques du faisceau 12 d'échange de chaleur.The tongues 42 extend here in substantially the same direction as that of the stack of the plates of the heat exchange bundle 12.

Comme mieux visible sur la figure 2, chacune des faces latérales 30 et 34 comporte deux languettes 42 sur chaque coté des faces latérales 30 et 34 en contact respectivement avec la face supérieure 32 et la face de fond 36.As better visible on the figure 2 each of the lateral faces 30 and 34 comprises two tongues 42 on each side of the lateral faces 30 and 34 in contact respectively with the upper face 32 and the bottom face 36.

Autrement dit, dans cet exemple, chaque deuxième partie du boîtier 14 ou, ici, face latérale 30 ou 34 comporte, sur deux de ces cotés situés en vis-à-vis l'un de l'autre,deux pattes 42 aptes à coopérer avec un évidemment 46 situé en vis-à-vis de ces pattes 42 sur la première partie du boîtier 14, ou, ici, face supérieure 32 et face de fond 36.In other words, in this example, each second part of the housing 14 or, here, lateral face 30 or 34 comprises, on two of these sides located opposite each other, two tabs 42 able to cooperate. with a recess 46 situated opposite these tabs 42 on the first part of the casing 14, or, here, upper face 32 and bottom face 36.

Dans le mode de réalisation illustré, chaque face latérale 30 et 34 comporte en outre au moins un bord relevé 44, dit premier bord relevé 44 ou encore bord d'assemblage du boîtier. Le premier bord relevé 44, s'étend ici sensiblement à angle droit par rapport au plan d'extension général de la face latérale sur lequel il est formé.In the illustrated embodiment, each lateral face 30 and 34 further comprises at least one raised edge 44, said first raised edge 44 or assembly edge of the housing. The first raised edge 44 extends here substantially at right angles to the general extension plane of the side face on which it is formed.

Ce premier bord relevé ou bord d'assemblage du boîtier 44 est formé par repliement de matière de chaque face latérale 30 ou 34.This first raised edge or assembly edge of the housing 44 is formed by folding material of each side face 30 or 34.

Ici, le premier bord relevé 44 est aménagé sur les parties des faces latérales 30 et 34 en contact respectivement avec la face supérieure 32 et la face de fond 36.Here, the first raised edge 44 is arranged on the portions of the lateral faces 30 and 34 in contact respectively with the upper face 32 and the bottom face 36.

Dans ce mode de réalisation, les languettes 42 sont obtenues par découpe et pliage du premier bord relevé 44.In this embodiment, the tabs 42 are obtained by cutting and folding the first raised edge 44.

Autrement dit, la deuxième partie du boîtier 14 comporte au moins un premier bord relevé 44 muni d'une languette 42 et la languette 42 est apte à coopérer avec un évidement 46 de la première partie. Le premier bord relevé 44 ou bord d'assemblage du boîtier collabore donc à l'assemblage des différents éléments du boîtier 14.In other words, the second portion of the housing 14 has at least one raised edge 44 provided with a tongue 42 and the tongue 42 is adapted to cooperate with a recess 46 of the first part. The first raised edge 44 or assembly edge of the housing thus collaborates in assembling the various elements of the housing 14.

Encore autrement dit, chaque partie 30 ; 32 ; 34 et 36 formant le boîtier 14 comporte au moins un moyen d'assemblage 42 ; 46 et/ ou 44 apte à coopérer avec la partie adjacente de manière à assembler le boîtier 14.In other words, each part 30; 32; 34 and 36 forming the housing 14 comprises at least one assembly means 42; 46 and / or 44 adapted to cooperate with the adjacent portion so as to assemble the housing 14.

Ainsi et grâce à la coopération entre le premier bord relevé 44, la languette 42 et l'évidement 46, le brasage des faces latérales sur la face supérieure 32 et la face de fond 36 permet d'obtenir une étanchéité renforcée du boîtier 14 en diminuant ainsi le risque de fuite d'air de suralimentation.Thus, and thanks to the cooperation between the first raised edge 44, the tongue 42 and the recess 46, the brazing of the lateral faces on the upper face 32 and the bottom face 36 makes it possible to obtain a reinforced sealing of the casing 14 by decreasing thus the risk of overfeeding air leakage.

Grâce à la configuration de l'échangeur de chaleur 10, il est possible de réaliser, en une seule étape, lors de l'opération de brasage, l'assemblage de l'ensemble des éléments composant le faisceau 12 d'échange de chaleur avec ceux composant le boîtier 14.Thanks to the configuration of the heat exchanger 10, it is possible to achieve, in a single step, during the brazing operation, the assembly of all the components of the heat exchange beam 12 with those composing the case 14.

L'échangeur de chaleur 10 pourra aussi présenter la caractéristique selon laquelle au moins deux parties contiguës du corps du boîtier 14 comportent des moyens pour créer une surface d'appui pour un collecteur 48. On entend ici par collecteur aussi bien un couvercle qu'un répartiteur d'air d'admission pour le moteur.The heat exchanger 10 may also have the characteristic that at least two contiguous parts of the body of the casing 14 comprise means for creating a bearing surface for a collector 48. Here collector means both a cover and a cover. intake air distributor for the engine.

Dans le mode de réalisation illustré aux figures 1 et 2, chaque collecteur 48 est un couvercle d'entrée ou de sortie pour l'air de suralimentation. Ces collecteurs 48 sont munis respectivement d'une tubulure d'entrée de gaz et d'au moins une tubulure de sortie de gaz.In the embodiment illustrated in Figures 1 and 2 each manifold 48 is an inlet or outlet cover for the charge air. These collectors 48 are respectively provided with a gas inlet pipe and at least one gas outlet pipe.

Dans le mode de réalisation représenté aux figures 1 et 2, chacune des quatre parties 30 ; 32 ; 34 et 36 formant le boîtier 14 comporte des moyens 40 pour créer une surface d'appui pour un collecteur et ceci pour chaque face ouverte du boîtier. En d'autres termes, chacune des faces ouvertes du corps du boîtier 14 est bordée au moins en partie par les moyens 40 pour créer une surface d'appui pour un collecteur 48.In the embodiment shown in Figures 1 and 2 each of the four parts 30; 32; 34 and 36 forming the housing 14 comprises means 40 for creating a bearing surface for a manifold and this for each open face of the housing. In other words, each of the open faces of the body of the casing 14 is bordered at least in part by the means 40 to create a bearing surface for a collector 48.

Autrement dit, ici, le corps du boîtier est formé par au moins deux parties assemblées entre elles par brasage et au moins deux desdites parties sont prévues contiguës et comportent des moyens 40 pour créer une surface d'appui pour un collecteur 48.In other words, here, the housing body is formed by at least two parts joined together by brazing and at least two of said parts are provided contiguous and comprise means 40 for creating a bearing surface for a collector 48.

Les moyens 40 pour créer la surface d'appui pour le collecteur 48 servent donc d'interface entre le corps du boîtier 14 et le ou les collecteurs 48.The means 40 for creating the bearing surface for the collector 48 thus serve as an interface between the body of the housing 14 and the collector or collectors 48.

Ici, les moyens pour créer une surface d'appui sont des seconds bords relevés 40 qu'on pourra aussi dénommés bord d'assemblage collecteur.Here, the means for creating a bearing surface are second raised edges 40 that may also be called collector assembly edge.

Ainsi, grâce à ces moyens 40 pour créer une surface d'appui pour un collecteur, il n'est plus nécessaire de rapporter des pièces supplémentaires de liaison sur le faisceau d'échange de chaleur pour former les boîtiers d'entrée/sortie de l'air de suralimentation.Thus, thanks to these means 40 to create a bearing surface for a manifold, it is no longer necessary to report additional pieces of connection on the heat exchange bundle to form the input / output boxes of the charging air.

Les moyens 40 pour créer une surface d'appui sont, ici, constitués de bords relevés 40 ou bord d'assemblage collecteur 40.The means 40 for creating a bearing surface are, here, constituted by raised edges 40 or collector assembly edge 40.

Les seconds bords relevés 40 d'une partie 30 ; 32 ; 34 ou 36 s'étendent de manière sensiblement perpendiculaire par rapport au plan d'extension général de ladite partie.The second raised edges 40 of a portion 30; 32; 34 or 36 extend substantially perpendicular to the general extension plane of said portion.

Autrement dit, dans ce mode de réalisation, les parties 30 ; 32 ; 34 ; 36 du corps du boîtier 14 sont chacune constitués d'une plaque munie, sur au moins une partie de sa périphérie de moyens 40 pour créer une surface d'appui, ces moyens étant, ici constitués de bords relevés dits bord d'assemblage collecteur 40.In other words, in this embodiment, the parts 30; 32; 34; 36 of the housing body 14 each consist of a plate provided on at least a portion of its periphery means 40 to create a bearing surface, these means being here constituted by raised edges said collector assembly edge 40.

Ici, chaque partie 30 ; 32 ; 34 ou 36 comporte au moins un second bord relevé en contact avec le second bord relevé de la partie contiguë au niveau d'une de ses extrémités de manière à définir la surface d'appui sur toute la périphérie de la face ouverte du corps du boîtier. La surface d'appui formée par les seconds bords relevés 40 est, ici, plane.Here each part 30; 32; 34 or 36 has at least a second raised edge in contact with the second raised edge of the contiguous portion at one of its ends so as to define the bearing surface over the entire periphery of the open face of the body of the housing . The bearing surface formed by the second raised edges 40 is here planar.

Cette surface plane a pour but de créer une face d'appui « continue » qui pourra servir au soudage d'un collecteur ou d'une bride ayant un pourtour également plat de sorte à obtenir une soudure étanche.This flat surface is intended to create a "continuous" bearing face that can be used to weld a collector or a flange having a circumference also flat so as to obtain a sealed weld.

Autrement dit, dans le mode de réalisation de la figure 1, le second bord relevé de la partie 36 (ou face de fond) est en contact, à la fois, avec le second bord relevé de la partie 30 (ou face latérale 30) et avec le second bord relevé de la partie 34 (ou face latérale 34).In other words, in the embodiment of the figure 1 the second raised edge of portion 36 (or bottom face) is in contact with both the raised second edge of portion 30 (or side face 30) and the second raised edge of portion 34 (or lateral face 34).

De même, le second bord relevé de la partie 32 (ou face supérieure) est en contact, à la fois, avec le second bord relevé de la partie 30 (ou face latérale 30) et avec le second bord relevé de la partie 34 (ou face latérale 34).Similarly, the second raised edge of portion 32 (or upper face) is in contact with both the raised edge of portion 30 (or side face 30) and the second raised edge of portion 34 ( or side face 34).

En d'autres termes, le cadre entourant une face ouverte du corps du boîtier 14 comporte une série de seconds bords relevés sur tout son pourtour, chaque second bord relevé 40 ou bord d'assemblage collecteur 40 étant en contact à chacune de ses extrémités avec un autre second bord relevé 40.In other words, the frame surrounding an open face of the body of the casing 14 comprises a series of second edges raised all around its periphery, each second raised edge 40 or collector assembly edge 40 being in contact at each of its ends with another second raised edge 40.

Encore autrement dit, les seconds bords relevés forment une bordure autour du cadre entourant la face ouverte du corps du boîtier 14. Cette bordure sert d'interface entre le boîtier 14 et le collecteur 48.In other words, the second raised edges form a border around the frame surrounding the open face of the casing body 14. This border serves as an interface between the casing 14 and the collector 48.

Dans ces exemples, les seconds bords relevés 40 sont reliés par un joint de brasure.In these examples, the second raised edges 40 are connected by a solder joint.

Les faces latérales 30 et 34 peuvent donc être vues comme des plaques de forme sensiblement rectangulaire comportant un pourtour ou périmètre bordé par deux séries de bords relevés, ces bords relevés étant composés de deux premiers 44 et de deux seconds 40 bords relevés, chacun des membres des différentes catégories de bords relevés étant situés en vis-à-vis du membre de même catégorie de bords relevés. Les premiers bords relevés 44 ayant pour fonction d'intervenir pour l'assemblage du boîtier 14 et les seconds bord relevés 40 servant à l'assemblage d'un collecteur 48 sur le corps du boîtier 14.The side faces 30 and 34 can therefore be seen as substantially rectangular plates having a perimeter or perimeter bordered by two series of raised edges, these raised edges being composed of two first 44 and two second 40 raised edges, each of the members different categories of raised edges being located vis-à-vis the member of the same category of raised edges. The first raised edges 44 having the function of intervening for the assembly of the housing 14 and the second raised edge 40 serving to assemble a manifold 48 on the body of the housing 14.

Autrement dit, au moins une des parties 30 ; 32 ; 34 ou 36 du boîtier 14 comporte un pourtour bordé par des bords relevés, ces bords relevés étant composés, ici, de deux premiers 44 et de deux seconds 40 bords relevés, les premiers bords relevés 44 intervenant dans l'assemblage du boîtier 14 et les seconds bord relevés 40 intervenant dans l'assemblage d'un collecteur 48 sur le boîtier 14.In other words, at least one of the parts 30; 32; 34 or 36 of the housing 14 has a periphery bordered by raised edges, these raised edges being composed, here, of two first 44 and two second 40 raised edges, the first raised edges 44 involved in the assembly of the housing 14 and the second raised edge 40 involved in the assembly of a manifold 48 on the housing 14.

Encore autrement dit, les faces latérales 30 et 34 sont entourées, ici sur: toute leur périphérie, d'une nervure formée par les premiers bords relevés 44 et par les seconds bords relevés 40. Cette nervure participe à la résistance mécanique de l'échangeur de chaleur 10.In other words, the side faces 30 and 34 are surrounded, here over: their entire periphery, with a rib formed by the first raised edges 44 and the second raised edges 40. This rib contributes to the mechanical strength of the exchanger of heat 10.

L'assemblage du ou des collecteurs 48 sur le boîtier 14 se fait, par exemple par soudage du ou des collecteurs sur la bordure formée par les seconds bords relevés 40 autour du cadre entourant la face ouverte du corps du boîtier 14.The assembly or collectors 48 on the housing 14 is made, for example by welding the collector or collectors on the edge formed by the second raised edges 40 around the frame surrounding the open face of the body of the housing 14.

Les collecteurs pourront par exemple être des boîtiers en aluminium, de préférence obtenus par le procédé de moulage sous pression.The collectors may for example be aluminum housings, preferably obtained by the die-casting process.

Un mode de réalisation de l'invention propose, en outre, qu'au moins une des parties 30 ; 32 ; 34 ou 36 comporte des déformations locales aptes à réduire les jeux de brasage avec une autre partie 30 ; 32 ; 34 ou 36, cette autre partie étant contiguë à la parties 30 ; 32 ; 34 ou 36 comportant des déformations locales.An embodiment of the invention further proposes that at least one of the portions 30; 32; 34 or 36 has local deformations capable of reducing brazing games with another part 30; 32; 34 or 36, this other portion being contiguous with the portion 30; 32; 34 or 36 with local deformations.

Ici, chaque partie 30 ; 32 ; 34 et 36 comporte des déformations locales aptes à réduire les jeux de brasage entre les différentes parties du boîtier et ainsi améliorer la continuité de la surface plane formant interface avec le collecteur.Here each part 30; 32; 34 and 36 includes local deformations capable of reducing brazing between the different parts of the housing and thus improve the continuity of the flat surface forming an interface with the collector.

Selon un autre mode de réalisation, la face supérieure 32 et la face de fond 36 ont une largeur légèrement supérieure à celle des plaques du faisceau d'échange de chaleur. De cette manière, on éloigne la zone de soudage du collecteur des zones brasées.According to another embodiment, the upper face 32 and the bottom face 36 have a width slightly greater than that of the plates of the heat exchange bundle. In this way, the welding zone of the collector is removed from the brazed zones.

On entend ici par largeur la distance séparant deux cotés, soit de la face supérieure 32 ou de fond 36, soit d'une plaque 16, dans le sens de circulation de l'air de suralimentation dans l'échangeur de chaleur. Autrement dit, dans la direction des petits cotés des plaques 16.By width is meant here the distance separating two sides, either of the upper face 32 or of bottom 36, or of a plate 16, in the direction of circulation of the supercharging air in the heat exchanger. In other words, in the direction of the small sides of the plates 16.

La figure 3 propose un mode de réalisation de l'invention, dans lequel le collecteur de sortie de l'air de suralimentation est réalisé sous la forme d'un répartiteur d'air d'admission 48-B pour le moteur.The figure 3 proposes an embodiment of the invention, in which the supercharging air outlet manifold is constructed as an intake air distributor 48-B for the engine.

Un répartiteur d'air d'admission pour le moteur permet une communication, par l'intermédiaire d'orifices, avec au moins une partie des conduits d'admission des chambres d'admission du moteur.An intake air distributor for the engine allows communication, through orifices, with at least a portion of the inlet ducts of the engine intake chambers.

Encore autrement dit, ce répartiteur sert d'interface entre l'échangeur de chaleur et la culasse du moteur sur lequel l'échangeur de chaleur 10' est monté.In other words, this distributor serves as an interface between the heat exchanger and the cylinder head of the engine on which the heat exchanger 10 'is mounted.

Ce répartiteur est aussi connu sous sa dénomination anglaise « intake manifold ». Il est fixé à la culasse de la chambre de combustion.This distributor is also known under its English name "intake manifold". It is attached to the cylinder head of the combustion chamber.

Dans ce mode de réalisation, l'entrée de l'air de suralimentation dans l'échangeur de chaleur se fait par l'intermédiaire d'un boîtier d'entrée 48-A, le boîtier est ici réalisé sous la forme d'un couvercle. La sortie de l'air de suralimentation de l'échangeur de chaleur 10' se fait, quant à elle, par l'intermédiaire d'un répartiteur 48-B qui fait, ici, office de boîtier de sortie pour l'air de suralimentation.In this embodiment, the inlet of the charge air into the heat exchanger is via an input box 48-A, the housing here is made in the form of a cover . The output of the supercharging air of the heat exchanger 10 'is, for its part, via a distributor 48-B, which here serves as an outlet box for the charge air .

Les faces latérales 34' du boîtier de l'échangeur de chaleur comporte, dans ce mode de réalisation, des nervures 50 de renfort, ici, au nombre de trois.The side faces 34 'of the housing of the heat exchanger comprises, in this mode of realization, reinforcement ribs 50, here, three in number.

L'invention ne se limite pas aux modes de réalisation décrits ci avant, décrits seulement à titre d'exemples, mais elle englobe toutes les variantes que pourra envisager l'homme de l'art dans le cadre des revendications ci-après. Les variantes décrites précédemment peuvent être prises séparément ou en combinaison les unes avec les autres.The invention is not limited to the embodiments described above, described only as examples, but encompasses all the variants that may be considered by those skilled in the art within the scope of the claims below. The variants described above can be taken separately or in combination with each other.

Claims (9)

  1. Heat exchanger (10) comprising a heat-exchange core (12) and a housing (14) inside which said heat-exchange core (12) is housed, said core (12) comprising a stack of plates (16) and said housing (14) comprising a body in at least one first (32; 36) and one second (30; 34) portions, at least one of said first portion (32; 36) or second portions (30; 34) being in contact with one end of each of the plates (16) of the stack of the heat-exchange core (12) and said heat-exchange core (12) being brazed to said housing (14), characterized in that said first portion (32; 36) and said second portion (30; 34) comprise means (42; 46) for mutual assembly arranged so as to manage/control the bulking of said heat exchanger (10) and in that said assembly means (42; 46) consist of a tongue (42) situated on one of said first or second portions (30; 32; 34; 36) and of a recess (46) situated on the other portion, said tongue (42) being capable of interacting with said recess (46).
  2. Heat exchanger according to Claim 1, wherein the first portion (32; 36) has a degree of freedom relative to the second portion (30; 34) in the direction of the stack of the plates (16).
  3. Heat exchanger according to Claim 1, wherein said assembly means (42; 46) are also means for self-centering said first portion (32; 36) on said second portion (30; 34).
  4. Heat exchanger according to one of the preceding claims, wherein at lest one of the portions (30; 34) of the housing (14) comprises a periphery bordered by raised edges, these raised edges consisting of first (44) and second (40) raised edges, the first raised edges (44) being involved in the assembly of the housing (14) and the second raised edges (40) being involved in the assembly of a manifold (48) to the housing (14).
  5. Heat exchanger according to one of the preceding claims, wherein said second portion (30; 34) comprises at least one raised edge (44) furnished with said tongue (42).
  6. Heat exchanger according to one of the preceding claims, said housing (14) comprises a portion called an upper face (32) furnished with two connector nozzles (18; 20) for a coolant fluid to enter and leave said exchanger (10).
  7. Heat exchanger according to one of the preceding claims, wherein said heat-exchange core (12) determines first channels for the circulation of a gas and second channels for the circulation of the coolant fluid.
  8. Heat exchanger according to one of the preceding claims, wherein said housing (14) is formed by at least four portions (30; 32; 34; 36) and has at least one open face, wherein said four portions (30; 32; 34; 36) are four substantially rectangular plates.
  9. Heat exchanger according to one of Claims 1 to 5, wherein said second portion comprises a U shape and wherein said first portion forms a cover for said second portion.
EP09769214.9A 2008-06-26 2009-06-22 Heat exchanger comprising a heat exchanger bundle and a housing Active EP2310788B1 (en)

Priority Applications (1)

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PL09769214T PL2310788T3 (en) 2008-06-26 2009-06-22 Heat exchanger comprising a heat exchanger bundle and a housing

Applications Claiming Priority (2)

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FR0803599A FR2933176B1 (en) 2008-06-26 2008-06-26 HEAT EXCHANGER HAVING A HEAT EXCHANGE BEAM AND A HOUSING
PCT/EP2009/057742 WO2009156365A1 (en) 2008-06-26 2009-06-22 Heat exchanger comprising a heat exchanger bundle and a housing

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EP2310788A1 EP2310788A1 (en) 2011-04-20
EP2310788B1 true EP2310788B1 (en) 2013-08-21

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US (1) US9335099B2 (en)
EP (1) EP2310788B1 (en)
JP (2) JP5851834B2 (en)
CN (1) CN102138054B (en)
ES (1) ES2431364T3 (en)
FR (1) FR2933176B1 (en)
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WO (1) WO2009156365A1 (en)

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Also Published As

Publication number Publication date
PL2310788T3 (en) 2013-12-31
FR2933176B1 (en) 2017-12-15
JP2011525611A (en) 2011-09-22
ES2431364T3 (en) 2013-11-26
CN102138054B (en) 2013-07-10
CN102138054A (en) 2011-07-27
US20110168366A1 (en) 2011-07-14
EP2310788A1 (en) 2011-04-20
US9335099B2 (en) 2016-05-10
JP2014196902A (en) 2014-10-16
JP5851834B2 (en) 2016-02-03
FR2933176A1 (en) 2010-01-01
WO2009156365A1 (en) 2009-12-30

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