EP0611940A1 - Rigid assembly, comprising two heat-exchangers and an expansion chamber - Google Patents

Rigid assembly, comprising two heat-exchangers and an expansion chamber Download PDF

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Publication number
EP0611940A1
EP0611940A1 EP94400311A EP94400311A EP0611940A1 EP 0611940 A1 EP0611940 A1 EP 0611940A1 EP 94400311 A EP94400311 A EP 94400311A EP 94400311 A EP94400311 A EP 94400311A EP 0611940 A1 EP0611940 A1 EP 0611940A1
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EP
European Patent Office
Prior art keywords
heat exchanger
assembly according
fluid
radiator
expansion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP94400311A
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German (de)
French (fr)
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EP0611940B1 (en
Inventor
Bernard Levy
Jean-François Chevalier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Thermique Moteur SA
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Valeo Thermique Moteur SA
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Publication of EP0611940A1 publication Critical patent/EP0611940A1/en
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Classifications

    • 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
    • F28F9/0231—Header boxes having an expansion chamber
    • 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
    • F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
    • F28D1/0426—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element
    • F28D1/0435—Combination of units extending one behind the other
    • 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
    • F28F9/002—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core with fastening means for other structures
    • 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
    • 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
    • F28D2021/0091—Radiators
    • F28D2021/0094—Radiators for recooling the engine coolant

Definitions

  • the invention relates to a rigid assembly comprising a first heat exchanger of generally flat shape, comprising at least one upper fluid box made of plastic material, and an expansion vessel in fluid exchange relationship with the upper fluid box, located near it.
  • the expansion tank can be formed in one piece with the upper fluid box, or fixed directly to the latter.
  • this solution would require a considerable strengthening of the fluid box so that it can resist the forces exerted by the expansion tank. due to its own weight and the vehicle's acceleration.
  • first heat exchanger used for cooling the engine a second generally flat heat exchanger used for cooling the charge air of the engine, or more precisely the air leaving the turbocharger used for the charge air, the first and second heat exchangers being oriented parallel to the same substantially vertical plane and juxtaposed so as to be traversed in series by a stream of air directed perpendicular to this plane.
  • the fluid boxes of the second heat exchanger are generally made of metal, in particular of aluminum alloy.
  • the object of the invention is to take advantage of these metal elements of the second heat exchanger to secure the expansion tank.
  • the invention relates in particular to an assembly of the kind defined in the introduction, and provides that it comprises a second heat exchanger of generally flat shape, the first and second heat exchangers being oriented parallel to the same substantially vertical plane and juxtaposed so as to be crossed in series by an air flow directed perpendicular to this plane, and the expansion tank is rigidly fixed to at least one element of the second heat exchanger.
  • the illustrated assembly includes a radiator 1 for cooling the thermal engine driving a motor vehicle and a radiator 2 for cooling the charge air of this engine.
  • the radiator 1 has a generally flat rectangular shape and extends substantially along a vertical plane perpendicular to the longitudinal axis of the vehicle. It includes two fluid boxes in material plastic 3 and 4 extending horizontally, along the upper and lower sides respectively of the radiator and provided with fittings 5 and 6, one of which is used for the inlet and the other for the outlet of the coolant.
  • the fluid boxes 3 and 4 are connected to each other by vertical fluid circulation tubes.
  • the radiator 2 also has a generally flat shape and extends along a plane parallel to that of the radiator 1, being substantially attached to the face of the latter facing the front of the vehicle.
  • the radiator 2 comprises two fluid boxes 7 and 8 molded of aluminum alloy, elongated in the vertical direction and extending respectively along the left and right sides of the radiator 1.
  • the fluid boxes 7 and 8 are interconnected by the horizontal tubes for the circulation of the air to be cooled.
  • the upper region 9, 10 of each of them forms an air inlet or outlet pipe which is bent backwards and bypasses the radiator 1 at the ends of its upper fluid box 3, to be connected to the charge air compressor and the intake manifold, not shown, located behind the set of radiators.
  • the fluid box 3 is in fluid communication connection with an expansion tank 11 of cylindrical shape of revolution whose axis is parallel to the longitudinal direction of this same fluid box.
  • the expansion vessel 11 is made of brass. Its length is less than the width of the space available between the pipes 9 and 10, in front of the radiator 1. It is therefore arranged partly in this free space, and partly in front with respect to the front face of the radiator 2 It also extends, in the vertical direction, partly opposite the upper fluid box 3 of the radiator 1, partly above and partly below the latter.
  • the expansion vessel 11 is fixed on two pairs of legs which have been molded with the tubes 9 and 10 respectively and arranged symmetrically with respect to the median vertical plane of the vehicle. Each pair includes a lower tab 12 and an upper tab 13.
  • the lower tab 12 extends horizontally forward and towards the median plane from the tubing 9 or 10.
  • the expansion vessel rests on its upper face by means of a junction piece 14 which is welded to the external face of the cylindrical wall of the vessel. expansion and protrudes beyond the end thereof, where it is connected to the lug 12 by a bolt 15 near the vertical axial plane 16 of the expansion vessel.
  • the upper tab 13 extends from the upper horizontal region of the tube 9 or 10 in the direction of the median longitudinal plane of the vehicle, in a plane slightly inclined relative to the vertical.
  • To this upper tab is also connected by a bolt 17 a junction piece 18 welded to the outer face of the cylindrical wall of the expansion vessel, the piece 18 moving away enough from this wall to allow the housing of the bolt. This is contained in the right dihedral delimited by the half-planes extending rearward and upward respectively from the longitudinal axis of the expansion vessel.
  • the expansion vessel may be rigidly fixed at one of the fluid boxes and to slide freely, in the direction of the tube bundle, at the other 7 of the fluid boxes so as to allow unhindered expansion of the tube bundle.
  • this can be done by providing a bolt 17, at the level of the fluid box 7, which is shouldered and this at the level of the connection of the tab 13 and the junction piece 18.

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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 expansion chamber (11), in fluid-exchange contact with the upper plastic fluid box (header box) (3) of the cooling radiator (1) of the heat (internal-combustion) engine of a motor vehicle, is fixed on lugs (12, 13) which are integrally moulded with the metal fluid boxes (7) of a radiator (2) for cooling air on the supercharger of this engine, this second radiator being attached to the front face of the first radiator. <IMAGE>

Description

L'invention concerne un ensemble rigide comprenant un premier échangeur de chaleur de forme générale plate, comportant au moins une boîte à fluide supérieure en matière plastique, et un vase d'expansion en relation d'échange de fluide avec la boîte à fluide supérieure, situé à proximité de celle-ci.The invention relates to a rigid assembly comprising a first heat exchanger of generally flat shape, comprising at least one upper fluid box made of plastic material, and an expansion vessel in fluid exchange relationship with the upper fluid box, located near it.

De tels ensembles sont notamment utilisés dans les véhicules automobiles, le premier échangeur de chaleur et le vase d'expansion faisant partie d'un circuit de fluide de refroidissement du moteur thermique du véhicule. Dans le cas d'un véhicule de tourisme, le vase d'expansion peut être formé d'une seule pièce avec la boîte à fluide supérieure, ou fixé directement sur celle-ci. Pour les véhicules industriels et agricoles, compte tenu de la grande quantité de fluide que doit recevoir le vase d'expansion, cette solution nécessiterait un renforcement considérable de la boîte à fluide pour qu'elle puisse résister aux efforts exercés par le vase d'expansion du fait de son propre poids et des accélérations du véhicule.Such assemblies are used in particular in motor vehicles, the first heat exchanger and the expansion tank forming part of a coolant circuit of the vehicle's heat engine. In the case of a passenger vehicle, the expansion tank can be formed in one piece with the upper fluid box, or fixed directly to the latter. For industrial and agricultural vehicles, given the large amount of fluid that the expansion tank must receive, this solution would require a considerable strengthening of the fluid box so that it can resist the forces exerted by the expansion tank. due to its own weight and the vehicle's acceleration.

Il est également connu d'associer au premier échangeur de chaleur servant au refroidissement du moteur un second échangeur de chaleur de forme générale plate servant au refroidissement de l'air de suralimentation du moteur, ou plus précisément de l'air sortant du turbocompresseur utilisé pour l'air de suralimentation, les premier et second échan- geurs de chaleur étant orientés parallèlement à un même plan sensiblement vertical et juxtaposés de façon à être traversés en série par un courant d'air dirigé perpendiculairement à ce plan. En raison de la température élevée de l'air sortant du turbocompresseur, les boîtes à fluide du second échangeur de chaleur sont généralement en métal, notamment en alliage d'aluminium.It is also known to associate with the first heat exchanger used for cooling the engine a second generally flat heat exchanger used for cooling the charge air of the engine, or more precisely the air leaving the turbocharger used for the charge air, the first and second heat exchangers being oriented parallel to the same substantially vertical plane and juxtaposed so as to be traversed in series by a stream of air directed perpendicular to this plane. Due to the high temperature of the air leaving the turbocharger, the fluid boxes of the second heat exchanger are generally made of metal, in particular of aluminum alloy.

Le but de l'invention est de tirer parti de ces éléments métalliques du second échangeur de chaleur pour assurer la fixation du vase d'expansion.The object of the invention is to take advantage of these metal elements of the second heat exchanger to secure the expansion tank.

L'invention vise notamment un ensemble du genre défini en introduction, et prévoit qu'il comprend un second échangeur de chaleur de forme générale plate, les premier et second échangeurs de chaleur étant orientés parallèlement à un même plan sensiblement vertical et juxtaposés de façon à être traversés en série par un courant d'air dirigé perpendiculairement à ce plan, et que le vase d'expansion est fixé de façon rigide sur au moins un élément du second échangeur de chaleur.The invention relates in particular to an assembly of the kind defined in the introduction, and provides that it comprises a second heat exchanger of generally flat shape, the first and second heat exchangers being oriented parallel to the same substantially vertical plane and juxtaposed so as to be crossed in series by an air flow directed perpendicular to this plane, and the expansion tank is rigidly fixed to at least one element of the second heat exchanger.

D'autres caractéristiques, complémentaires ou alternatives, de l'ensemble selon l'invention sont énoncées ci-après :

  • Ledit élément est une boîte à fluide.
  • Le vase d'expansion est allongé dans une direction sensiblement horizontale et parallèle audit plan, et est fixé par ses deux régions d'extrémités respectivement sur les régions d'extrémités supérieures de deux boîtes à fluide latérales opposées du second échangeur de chaleur.
  • Chaque région d'extrémité du vase d'expansion est fixée sur deux pattes venues de matière avec la boîte à fluide correspondante, respectivement par deux points de fixation éloignés l'un de l'autre autour de la section transversale du vase d'expansion.
  • Les boîtes à fluide du second échangeur de chaleur sont moulées en alliage d'aluminium.
  • Ladite boîte à fluide supérieure du premier échangeur de chaleur est en matière plastique.
  • Le second échangeur de chaleur est disposé en regard de la face du premier échangeur de chaleur tournée vers l'arrière du véhicule.
  • Le vase d'expansion est disposé en avant du premier échangeur de chaleur, sa dimension dans la direction avant-arrière se superposant en partie à celle du second échangeur de chaleur.
  • Le vase d'expansion s'étend jusqu'à un niveau inférieur à la boîte à fluide supérieure du premier échangeur de chaleur, et se situe dans la direction latérale entre les deux boîtes à fluide du second échangeur de chaleur.
  • Le premier échangeur de chaleur est un radiateur de refroidissement du moteur thermique d'entraînement du véhicule et le second échangeur de chaleur est un radiateur de refroidissement d'air de suralimentation dudit moteur.
Other characteristics, complementary or alternative, of the assembly according to the invention are set out below:
  • Said element is a fluid box.
  • The expansion vessel is elongated in a substantially horizontal direction and parallel to said plane, and is fixed by its two end regions respectively to the upper end regions of two opposite lateral fluid boxes of the second heat exchanger.
  • Each end region of the expansion tank is fixed on two tabs made of one piece with the corresponding fluid box, respectively by two fixing points distant from each other around the cross section of the expansion tank.
  • The fluid boxes of the second heat exchanger are molded from aluminum alloy.
  • Said upper fluid box of the first heat exchanger is made of plastic.
  • The second heat exchanger is arranged opposite the face of the first heat exchanger facing the rear of the vehicle.
  • The expansion vessel is arranged in front of the first heat exchanger, its dimension in the front-rear direction partly overlapping that of the second heat exchanger.
  • The expansion vessel extends to a level below the upper fluid box of the first heat exchanger, and is located in the lateral direction between the two fluid boxes of the second heat exchanger.
  • The first heat exchanger is a radiator for cooling the engine driving the vehicle and the second heat exchanger is a radiator for cooling the charge air of said engine.

Les caractéristiques et avantages de l'invention seront exposés plus en détail dans la description ci-après, en se référant aux dessins annexés, sur lesquels :

  • la figure 1 est une vue de côté d'un ensemble selon l'invention;
  • la figure 2 est une vue partielle d'arrière du même ensemble; et
  • la figure 3 est une vue partielle d'arrière d'une boîte à fluide métallique supportant le vase d'expansion.
The characteristics and advantages of the invention will be explained in more detail in the description below, with reference to the accompanying drawings, in which:
  • Figure 1 is a side view of an assembly according to the invention;
  • Figure 2 is a partial rear view of the same assembly; and
  • Figure 3 is a partial rear view of a metallic fluid box supporting the expansion tank.

L'ensemble illustré comprend un radiateur 1 de refroidissement du moteur thermique d'entraînement d'un véhicule automobile et un radiateur 2 de refroidissement d'air de suralimentation de ce moteur. Le radiateur 1 a une forme générale plate rectangulaire et s'étend sensiblement selon un plan vertical perpendiculaire à l'axe longitudinal du véhicule. Il comprend deux boîtes à fluide en matière plastique 3 et 4 s'étendant horizontalement, le long des côtés supérieur et inférieur respectivement du radiateur et munis de raccords 5 et 6 dont l'un sert à l'entrée et l'autre à la sortie du fluide de refroidissement. Les boîtes à fluide 3 et 4 sont reliées l'une à l'autre par des tubes de circulation de fluide verticaux. Le radiateur 2 a également une forme générale plate et s'étend selon un plan parallèle à celui du radiateur 1, en étant sensiblement accolé à la face de celui-ci tournée vers l'avant du véhicule. Le radiateur 2 comporte deux boîtes à fluide 7 et 8 moulées en alliage d'aluminium, allongées dans la direction verticale et s'étendant respectivement le long des côtés gauche et droit du radiateur 1. De façon connue en soi, les boîtes à fluide 7 et 8 sont reliées entre elles par les tubes horizontaux pour la circulation de l'air à refroidir. La région supérieure 9, 10 de chacune d'elles forme une tubulure d'entrée ou de sortie de l'air qui est recourbée vers l'arrière et contourne le radiateur 1 au niveau des extrémités de sa boîte à fluide supérieure 3, pour être reliée au compresseur d'air de suralimentation et au collecteur d'admission non représentés, situés en arrière de l'ensemble de radiateurs.The illustrated assembly includes a radiator 1 for cooling the thermal engine driving a motor vehicle and a radiator 2 for cooling the charge air of this engine. The radiator 1 has a generally flat rectangular shape and extends substantially along a vertical plane perpendicular to the longitudinal axis of the vehicle. It includes two fluid boxes in material plastic 3 and 4 extending horizontally, along the upper and lower sides respectively of the radiator and provided with fittings 5 and 6, one of which is used for the inlet and the other for the outlet of the coolant. The fluid boxes 3 and 4 are connected to each other by vertical fluid circulation tubes. The radiator 2 also has a generally flat shape and extends along a plane parallel to that of the radiator 1, being substantially attached to the face of the latter facing the front of the vehicle. The radiator 2 comprises two fluid boxes 7 and 8 molded of aluminum alloy, elongated in the vertical direction and extending respectively along the left and right sides of the radiator 1. In a manner known per se, the fluid boxes 7 and 8 are interconnected by the horizontal tubes for the circulation of the air to be cooled. The upper region 9, 10 of each of them forms an air inlet or outlet pipe which is bent backwards and bypasses the radiator 1 at the ends of its upper fluid box 3, to be connected to the charge air compressor and the intake manifold, not shown, located behind the set of radiators.

La boîte à fluide 3 est en liaison de communication de fluide avec un vase d'expansion 11 de forme cylindrique de révolution dont l'axe est parallèle à la direction longitudinale de cette même boîte à fluide. Le vase d'expansion 11 est réalisé en laiton. Sa longueur est inférieure à la largeur de l'espace disponible entre les tubulures 9 et 10, en avant du radiateur 1. Il est donc disposé pour partie dans cet espace libre, et en partie en avant par rapport à la face avant du radiateur 2. Il s'étend par ailleurs, dans la direction verticale, pour partie en regard de la boîte à fluide supérieure 3 du radiateur 1, pour partie au-dessus et pour partie au-dessous de celle-ci. Le vase d'expansion 11 est fixé sur deux paires de pattes venues de moulage avec les tubulures 9 et 10 respectivement et disposées symétriquement par rapport au plan vertical médian du véhicule. Chaque paire comprend une patte inférieure 12 et une patte supérieure 13. La patte inférieure 12 s'étend horizontalement vers l'avant et vers le plan médian à partir de la tubulure 9 ou 10. Le vase d'expansion repose sur sa face supérieure par l'intermédiaire d'une pièce de jonction 14 qui est soudée sur la face externe de la paroi cylindrique du vase d'expansion et fait saillie au-delà de l'extrémité de celui-ci, où elle est reliée à la patte 12 par un boulon 15 à proximité du plan axial vertical 16 du vase d'expansion. La patte supérieure 13 s'étend à partir de la région supérieure horizontale de la tubulure 9 ou 10 en direction du plan longitudinal médian du véhicule, selon un plan légèrement incliné par rapport à la verticale. A cette patte supérieure est également reliée par un boulon 17 une pièce de jonction 18 soudée sur la face extérieure de la paroi cylindrique du vase d'expansion, la pièce 18 s'éloignant suffisamment de cette paroi pour permettre le logement du boulon. Celui-ci est contenu dans le dièdre droit délimité par les demi-plans s'étendant respectivement vers l'arrière et vers le haut à partir de l'axe longitudinal du vase d'expansion.The fluid box 3 is in fluid communication connection with an expansion tank 11 of cylindrical shape of revolution whose axis is parallel to the longitudinal direction of this same fluid box. The expansion vessel 11 is made of brass. Its length is less than the width of the space available between the pipes 9 and 10, in front of the radiator 1. It is therefore arranged partly in this free space, and partly in front with respect to the front face of the radiator 2 It also extends, in the vertical direction, partly opposite the upper fluid box 3 of the radiator 1, partly above and partly below the latter. The expansion vessel 11 is fixed on two pairs of legs which have been molded with the tubes 9 and 10 respectively and arranged symmetrically with respect to the median vertical plane of the vehicle. Each pair includes a lower tab 12 and an upper tab 13. The lower tab 12 extends horizontally forward and towards the median plane from the tubing 9 or 10. The expansion vessel rests on its upper face by means of a junction piece 14 which is welded to the external face of the cylindrical wall of the vessel. expansion and protrudes beyond the end thereof, where it is connected to the lug 12 by a bolt 15 near the vertical axial plane 16 of the expansion vessel. The upper tab 13 extends from the upper horizontal region of the tube 9 or 10 in the direction of the median longitudinal plane of the vehicle, in a plane slightly inclined relative to the vertical. To this upper tab is also connected by a bolt 17 a junction piece 18 welded to the outer face of the cylindrical wall of the expansion vessel, the piece 18 moving away enough from this wall to allow the housing of the bolt. This is contained in the right dihedral delimited by the half-planes extending rearward and upward respectively from the longitudinal axis of the expansion vessel.

De manière préférentielle, il peut être prévu que le vase d'expansion soit fixé d'une manière rigide au niveau de l'une 8 des boîtes à fluide et d'une manière libre en coulissement, selon la direction du faisceau de tubes, à l'autre 7 des boîtes à fluide de manière à autoriser sans entrave la dilatation du faisceau de tubes.Preferably, provision may be made for the expansion vessel to be rigidly fixed at one of the fluid boxes and to slide freely, in the direction of the tube bundle, at the other 7 of the fluid boxes so as to allow unhindered expansion of the tube bundle.

En pratique, cela peut se faire en prévoyant un boulon 17, au niveau de la boîte à fluide 7, qui soit épaulé et cela au niveau de la liaison de la patte 13 et de la pièce de jonction 18.In practice, this can be done by providing a bolt 17, at the level of the fluid box 7, which is shouldered and this at the level of the connection of the tab 13 and the junction piece 18.

Claims (10)

Ensemble rigide comprenant un premier échangeur de chaleur (1) de forme générale plate, comportant au moins une boîte à fluide supérieure (3) en matière plastique, et un vase d'expansion (11) en relation d'échange de fluide avec la boîte à fluide supérieure, situé à proximité de celle-ci, caractérisé en ce qu'il comprend un second échangeur de chaleur (2) de forme générale plate, les premier et second échangeurs de chaleur étant orientés parallèlement à un même plan sensiblement vertical et juxtaposés de façon à être traversés en série par un courant d'air dirigé perpendiculairement à ce plan, et en ce que le vase d'expansion est fixé de façon rigide sur au moins un élément (7,8) du second échangeur de chaleur.Rigid assembly comprising a first heat exchanger (1) of generally flat shape, comprising at least one upper fluid box (3) made of plastic, and an expansion tank (11) in fluid exchange relationship with the box fluid upper, located near it, characterized in that it comprises a second heat exchanger (2) of generally flat shape, the first and second heat exchangers being oriented parallel to the same substantially vertical plane and juxtaposed so as to be traversed in series by an air stream directed perpendicular to this plane, and in that the expansion vessel is rigidly fixed on at least one element (7,8) of the second heat exchanger. Ensemble selon la revendication 1, caractérisé en ce que ledit élément est une boîte à fluide.Assembly according to claim 1, characterized in that said element is a fluid box. Ensemble selon la revendication 2, caractérisé en ce que le vase d'expansion est allongé dans une direction sensiblement horizontale et parallèle audit plan, et est fixé par ses deux régions d'extrémités respectivement sur les régions d'extrémités supérieures (9,10) de deux boîtes à fluide latérales opposées (7,8) du second échangeur de chaleur (2).Assembly according to claim 2, characterized in that the expansion vessel is elongated in a substantially horizontal direction and parallel to said plane, and is fixed by its two end regions respectively on the upper end regions (9,10) two opposite side fluid boxes (7,8) of the second heat exchanger (2). Ensemble selon la revendication 3, caractérisé en ce que chaque région d'extrémité du vase d'expansion est fixée sur deux pattes (12,13) venues de matière avec la boîte à fluide correspondante, respectivement par deux points de fixation (15,17) éloignés l'un de l'autre autour de la section transversale du vase d'expansion.Assembly according to claim 3, characterized in that each end region of the expansion vessel is fixed on two legs (12,13) made in one piece with the corresponding fluid box, respectively by two fixing points (15,17 ) distant from each other around the cross section of the expansion tank. Ensemble selon l'une des revendications 2 à 4, caractérisé en ce que les boîtes à fluide du second échangeur de chaleur sont moulées en alliage d'aluminium.Assembly according to one of claims 2 to 4, characterized in that the fluid boxes of the second heat exchanger are molded from aluminum alloy. Ensemble selon l'une des revendications précédentes, caractérisé en ce que ladite boîte à fluide supérieure (3) du premier échangeur de chaleur (1) est en matière plastique.Assembly according to one of the preceding claims, characterized in that said upper fluid box (3) of the first heat exchanger (1) is made of plastic. Ensemble selon l'une des revendications précédentes, caractérisé en ce que le second échangeur de chaleur (2) est disposé en regard de la face du premier échangeur de chaleur (1) tournée vers l'arrière du véhicule.Assembly according to one of the preceding claims, characterized in that the second heat exchanger (2) is arranged opposite the face of the first heat exchanger (1) facing the rear of the vehicle. Ensemble selon la revendication 7, caractérisé en ce que le vase d'expansion (11) est disposé en avant du premier échangeur de chaleur, sa dimension dans la direction avant-arrière se superposant en partie à celle du second échangeur de chaleur.An assembly according to claim 7, characterized in that the expansion vessel (11) is arranged in front of the first heat exchanger, its dimension in the front-rear direction partly overlapping that of the second heat exchanger. Ensemble selon la revendication 8, caractérisé en ce que le vase d'expansion s'étend jusqu'à un niveau inférieur à la boîte à fluide supérieure du premier échangeur de chaleur, et se situe dans la direction latérale entre les deux boîtes à fluide (7,8) du second échangeur de chaleur (2).Assembly according to Claim 8, characterized in that the expansion vessel extends to a level below the upper fluid box of the first heat exchanger, and is located in the lateral direction between the two fluid boxes ( 7,8) of the second heat exchanger (2). Ensemble selon l'une des revendications précédentes, caractérisé en ce que le premier échangeur de chaleur est un radiateur de refroidissement du moteur thermique d'entraînement du véhicule et que le second échangeur de chaleur est un radiateur de refroidissement d'air de suralimentation dudit moteur.Assembly according to one of the preceding claims, characterized in that the first heat exchanger is a radiator for cooling the engine driving the vehicle and that the second heat exchanger is a radiator for cooling the charge air of said engine .
EP19940400311 1993-02-19 1994-02-14 Rigid assembly, comprising two heat-exchangers and an expansion chamber Expired - Lifetime EP0611940B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9301951A FR2701760B1 (en) 1993-02-19 1993-02-19 Rigid assembly comprising two heat exchangers and an expansion tank.
FR9301951 1993-02-19

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EP0611940A1 true EP0611940A1 (en) 1994-08-24
EP0611940B1 EP0611940B1 (en) 1997-04-09

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EP19940400311 Expired - Lifetime EP0611940B1 (en) 1993-02-19 1994-02-14 Rigid assembly, comprising two heat-exchangers and an expansion chamber

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EP (1) EP0611940B1 (en)
DE (1) DE69402455T2 (en)
FR (1) FR2701760B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0928709A1 (en) * 1998-01-12 1999-07-14 MAGNETI MARELLI CLIMATIZZAZIONE S.p.A. A heat-exchanger assembly for a vehicle, including a radiator with a dehydrating filter
FR2814230A1 (en) * 2000-09-20 2002-03-22 Valeo Thermique Moteur Sa Vehicle radiator is made up of two separate heat exchangers, collector boxes on one heat exchanger being made from metal sheet and having claws which fit into corresponding recesses in collector boxes of other
FR2825459A1 (en) * 2001-05-29 2002-12-06 Valeo Thermique Moteur Sa Heat exchanger module for motor vehicle, includes plastic section of primary heat exchanger with integral fixing part for securing support for filter and dehydration tank

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2272858A1 (en) * 1974-05-28 1975-12-26 Nippon Denso Co
US4531574A (en) * 1982-12-27 1985-07-30 Deere & Company Mounting connecting an oil cooler to a radiator
EP0219419A1 (en) * 1985-10-09 1987-04-22 Valeo Water box and expansion chamber device, and heat exchanger comprising such a device
EP0431917A1 (en) * 1989-12-07 1991-06-12 Showa Aluminum Kabushiki Kaisha Consolidated duplex heat exchanger

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2272858A1 (en) * 1974-05-28 1975-12-26 Nippon Denso Co
US4531574A (en) * 1982-12-27 1985-07-30 Deere & Company Mounting connecting an oil cooler to a radiator
EP0219419A1 (en) * 1985-10-09 1987-04-22 Valeo Water box and expansion chamber device, and heat exchanger comprising such a device
EP0431917A1 (en) * 1989-12-07 1991-06-12 Showa Aluminum Kabushiki Kaisha Consolidated duplex heat exchanger

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0928709A1 (en) * 1998-01-12 1999-07-14 MAGNETI MARELLI CLIMATIZZAZIONE S.p.A. A heat-exchanger assembly for a vehicle, including a radiator with a dehydrating filter
FR2814230A1 (en) * 2000-09-20 2002-03-22 Valeo Thermique Moteur Sa Vehicle radiator is made up of two separate heat exchangers, collector boxes on one heat exchanger being made from metal sheet and having claws which fit into corresponding recesses in collector boxes of other
US6607025B2 (en) 2000-09-20 2003-08-19 Valeo Thermique Moteur Heat-exchange module for a motor vehicle
FR2825459A1 (en) * 2001-05-29 2002-12-06 Valeo Thermique Moteur Sa Heat exchanger module for motor vehicle, includes plastic section of primary heat exchanger with integral fixing part for securing support for filter and dehydration tank

Also Published As

Publication number Publication date
FR2701760B1 (en) 1995-04-21
DE69402455D1 (en) 1997-05-15
FR2701760A1 (en) 1994-08-26
EP0611940B1 (en) 1997-04-09
DE69402455T2 (en) 1997-07-17

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