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EP2208010B1 - Heat exchanger for high and low temperature fluids - Google Patents

Heat exchanger for high and low temperature fluids Download PDF

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Publication number
EP2208010B1
EP2208010B1 EP08804464.9A EP08804464A EP2208010B1 EP 2208010 B1 EP2208010 B1 EP 2208010B1 EP 08804464 A EP08804464 A EP 08804464A EP 2208010 B1 EP2208010 B1 EP 2208010B1
Authority
EP
European Patent Office
Prior art keywords
temperature part
heat exchanger
low
low temperature
manifold
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
EP08804464.9A
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German (de)
French (fr)
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EP2208010A1 (en
Inventor
Christian Mahe
Xavier Marchadier
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
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Valeo Systemes Thermiques SAS
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Publication of EP2208010A1 publication Critical patent/EP2208010A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/0408—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
    • F28D1/0443—Combination of units extending one beside or one above the other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/18—Arrangements or mounting of liquid-to-air heat-exchangers
    • F01P2003/185—Arrangements or mounting of liquid-to-air heat-exchangers arranged in parallel

Definitions

  • the invention relates to the field of heat exchangers and in particular to heat exchangers intended to be traversed by a fluid.
  • the invention relates more particularly to heat exchangers for motor vehicles requiring a low temperature loop or exchanger and a high temperature loop or exchanger; the low temperature exchanger being coplanar with the high temperature exchanger.
  • An exchanger according to the first part of claim 1 is disclosed in document EP 0 352 158 .
  • This type of heat exchanger 30 is currently known on the market in which a connection 37 between the low temperature exchanger 31 and the high temperature exchanger 32 is effected by means of a hose 37, that is to say a hose. reported means, generally in the form of a plastic conduit, linking the outlet manifold 35 of the high temperature portion 32 to the inlet manifold 36 of the low temperature portion 31.
  • this type of solution has the major disadvantage of requiring a complementary portion 37 to be fixed to the two heat exchangers or to the two heat exchange parts 31 and 32.
  • this complementary portion 37 is likely to leak.
  • the material used for this complementary portion 37 is either relatively flexible plastic to adapt to all types of configurations of the engine block and in particular according to the arrangement of the high temperature exchanger 31 with respect to the low temperature exchanger 32, the hose 37 is made of rigid material and therefore with a well-defined shape.
  • the connection of the hose 37 with the two collectors 35, 36 of each of the heat exchangers 31, 32 is relatively easy but it is particularly fragile and likely to deteriorate rapidly.
  • the hose 37 is resistant but then its connection with each of the two collectors 35, 36 is particularly difficult and the risk of leakage at these particularly important connection locations.
  • Heat exchangers 30 are also known on the market, associating a high temperature part 31 with a low temperature part 32, the exchanger 30 having a unified structure in which the width and thickness dimensions for these two heat exchange parts 31, 32 are strictly identical. This type of structures is illustrated by both Figures 2a and 2b attached.
  • the high temperature portion 31 always located above the low temperature portion 32 so that it is still possible to allow the fluid to pass from the outlet manifold 33 of the high temperature portion 31 to the inlet manifold 34 of the low temperature part 32.
  • en gazeement problems formation of gaseous bubbles in the fluid essentially in liquid form
  • manufacturing and leaks it is not possible to provide a high temperature part 31 below the low temperature portion 32 so that this type of heat exchanger 30 does not have a good heat exchange efficiency.
  • the object of the invention is in particular to overcome the disadvantages of the aforementioned heat exchangers by proposing a heat exchanger, of the type mentioned above, allowing the high temperature part to be placed below the low temperature part.
  • the structure of the exchanger according to the invention is such that the high temperature portion is located below the low temperature portion. Because the fluid flowing through the exchanger, and therefore the two high and low temperature parts, is unique, and this fluid first flows through the high temperature part and then the low temperature part, the fluid inlet into the exchanger of heat according to the invention is made / located in the lower part of said exchanger, namely here in the part to high temperature, and the fluid outlet in the heat exchanger is made / located in the upper part of said exchanger, contrary to what exists in the prior art (and illustrated in FIG. figure 2 ).
  • the invention in addition to the structure of the exchanger (in particular the particular top-bottom positioning of the two parts and that of the fluid inlet / outlet in the heat exchanger), the invention relates to the use of a such a heat exchanger characterized in that the high temperature portion is located below the low temperature portion.
  • connection / direct attachment between the outlet manifold of the high temperature part and the inlet manifold of the low temperature part is provided by means of communication from the outlet manifold of the high temperature part and / or the inlet manifold of the low temperature part, that is to say from material of one and / or the other of these two elements.
  • this means of communication consists of a dip tube or a similar device in its function, namely to ensure the transport of liquid fluid (and almost completely liquid without bubble or gas) from the first part of the heat exchanger to his second part.
  • the two parts are traversed by the same fluid means that these two parts, low and high temperature, are traversed by the same fluid which passes first by one of these two parts then by the other, classically firstly by the high temperature part then by the low temperature part.
  • the outlet manifold of the high temperature part is directly connected to the inlet manifold of the low temperature part
  • the outlet manifold of the high temperature part is directly connected to the inlet manifold of the low temperature part
  • these two collectors are connected to each other without any intermediate, the or the means allowing the connection between these two collectors being conventionally derived from material during the manufacture / formation of each of these two collectors.
  • the present invention avoids any engazement during the passage of the fluid from the high temperature part to the low temperature part despite the positioning of the low temperature part above the high temperature part.
  • the high temperature part is positioned below the low temperature part, it being understood that the above-below positioning is determined by the fact that the fluid rises from the high temperature part to the low temperature part, at the same time. against the force of gravity.
  • This positioning can also be defined by the positioning of the heat exchanger in the engine block, the high-temperature part then being located above (relative to the notion of altitude relative to the terrestrial ground) of the low part. temperature.
  • the fluid circulating in the bundles of tubes of each of the parts, at high and low temperature is intended to be swept by the same air flow which sweeps the beam generally perpendicularly to the plane of the heat exchanger.
  • the heat exchangers 30 shown on the Figures 1 and 2 are heat exchangers 30 according to the prior art and comprise, like the heat exchangers 1, 2 according to the invention, represented on the Figures 3 to 6 , two parts, high 3 and low 4 temperature.
  • Each of these high and low temperature portions 3 comprises a fluid inlet manifold 5, 6 and a fluid outlet manifold 7, 8 and a tube bundle or the like 9, 10 for the exchange of fluid.
  • These heat exchange bundles 9, 10 here consist of tubes between which are arranged / fixed fins or disrupters, not visible in the accompanying figures, for disrupting the air flow to achieve a better heat exchange.
  • the bundles of tubes 9, 10 are conventionally fixed respectively to the inlet manifolds 5, 6 and outlet 7, 8 via the ends of tubes.
  • the fluid flowing in the tubes 9, 10 is engine coolant and that the tubes of the bundles 9, 10 are flat tubes, but it will be understood that the invention is not limited to these modes. and that any type of fluid can be envisaged with the invention as all types of heat exchangers, for example including plates, tubes, collectors consist of one or more parts and all having geometric shapes.
  • the collectors 5, 6, 7, 8 of the heat exchanger 1, 2 consist of a collector plate fixing the ends of the tubes of the exchange bundle and a lid; these two plate collector / cover forming the collector of the invention.
  • the collector plate is conventionally made of metal while the cover is ideally plastic but it can also provide all-metal collectors.
  • only one of the collectors 5, 6, 7 or 8, that is to say its lid, of the heat exchanger 1, 2 may be plastic, preferably the inlet manifold 6 of the low temperature part 4, while at least the inlet manifolds 5 and outlet 7 of the high temperature portion 3 will be metallic.
  • the heat exchanger 1 shown on the figures 3 and 4 has a high temperature portion 3 of much greater dimensions than those of the low temperature portion 4. Indeed, the beam exchange surface 9 of the high temperature portion 3 is substantially here between 3 and 5 times greater than the beam exchange surface 10 of the low temperature portion 4.
  • the inlet manifold 5 of the high temperature portion 3 comprises a pipe 11 of a diameter also much greater than the diameter of the pipe 12 of the outlet manifold 8 of the low temperature part 3.
  • the outlet manifold 7 of the high temperature portion 3 comprises a pipe 13 which may ideally be of a diameter smaller than the diameter of the pipe 11 of the inlet manifold 5 because the quantity of fluid flowing through the pipe of the outlet manifold 7 is less than that entering through the manifold 11 of the inlet manifold 5; the difference being constituted by the fluid flowing in the low temperature portion 4 of the heat exchanger 1.
  • the width as well as possibly the thickness of the low temperature portion 4 is / are lower than that (s) of the high temperature portion 3.
  • the inlet manifold 6 of the low temperature portion 4 comprises a circular tube or plunger rod 14, located in its lower part facing or near the outlet manifold 7 of the high temperature portion 3, while the outlet manifold 7 of the high temperature portion 3 has a cylindrical orifice 15 of complementary shape to that of the plunger pin 14 so that the latter 14 is enclosed inside said orifice 15.
  • the function of the cylindrical orifice 15 serves to prevent the engazement of the fluid during its passage from the high temperature portion to the low temperature portion.
  • this cylinder or tube 15, of cylindrical shape or any other linear forms the formation of bubbles in the fluid passing from the high temperature portion to the low temperature portion is prevented.
  • the orifice, sheath or sleeve 15, is here composed of two parts, one upper 15 'having a diameter substantially equal to the diameter of the aforesaid circular tube 14 and the other lower 15' 'having a diameter smaller than the diameter of said tube circular 14 or said portion 15 'so that the circular tube 14 abuts this lower portion 15.
  • the lower portion 15' 'of the circular orifice 15 opens in its lower part in an open chamber 16 able to store a portion of the fluid entering the outlet manifold 7 of the high temperature portion 3 to then circulate through this orifice 15 and then into the circular tube 14 to arrive in the inlet manifold 6 of the low temperature portion 4.
  • the circular tube 14 here comprises at least one side plate 17 having orifice (s) intended (s) to allow a fixing by screwing 18.
  • This fixing by screwing / riveting 18 constitutes a complementary fixation and optional to the fitting of the circular tube 14 in the orifice 15, this fitting making a fixation by clipping for example to a peripheral groove 19 present on the circular tube 14 and intended to accommodate a protrusion 20 also peripheral and extending vis-à-vis from the orifice 15.
  • the section of the plunging tube 14 and that of the orifice 15 are here circular, but it is understood that all shapes and dimensions can be provided insofar as the portions of the tube 14 and of the sleeve 15 intended to cooperate with each other. are adapted to interconnect.
  • the figures 5 and 6 show a second embodiment of a heat exchanger according to the invention.
  • the structure remains substantially identical except for the fact that the two parts, high 3 and low 4 temperature, have identical dimensions, in particular both in width and thickness, which allows to perform two single collectors 21, 22 each of these two collectors 21, 22 being subdivided into two to form respectively the inlet manifold 5 of the high temperature portion 3 and the outlet manifold 8 of the low temperature portion 4 for the one 21 and the collector 7 of the high temperature portion 3 and the inlet manifold 6 of the low temperature portion 4 for the other 22.
  • the tube 14 of the inlet manifold 6 of the low temperature portion 4 is not necessarily pushed into the sleeve / sleeve 15 of the outlet manifold of the high temperature portion 3 and it is sufficient that the opening of the tube 14 coincides with the opening of the sleeve / sleeve 15 so that the fluid actually passes. from one 3/7 to another 4/6, as can be seen on the figure 6 .
  • the separation between the outlet manifolds 7 and inlet 6 respectively for the high temperature portion 3 and the low temperature portion 4 is achieved through a partition 23 extending ideally from the end of the tube 14 or sleeve / sleeve 15, here of the sleeve / sleeve, to one or more walls (s) of the single collector 22.
  • the heat exchanger 1, 2 fulfilling the same functions as conventional heat exchangers, its structure is not different and does not exclude or require any element / part, such as the cheeks at the two ends of the bundle of tubes or the means or studs for fixing the heat exchanger in the engine block.
  • the invention also relates to the production of a high temperature / low temperature exchanger, illustrated in FIGS. figures 5 and 6 wherein the header plate and the cover forming the manifold of the invention are common to both the high and low temperature portions.
  • the collector 21, comprising a single cover and a single collector plate, is used for the collector plate and the cover respectively the inlet manifold of the high-temperature part 3 and the outlet collector of the low-temperature part 4 while the collector 22, also comprising a single cover and a single collector plate, is used for the collector plate and the cover respectively of the outlet manifold of the high-temperature part 3 and the inlet collector of the low-temperature part 4.
  • the two collectors 21, 22 form the inlet / outlet manifolds of the high temperature part 3 and the low temperature part 4.

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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)

Description

L'invention se rapporte au domaine des échangeurs de chaleur et notamment aux échangeurs de chaleur destinés à être parcourus par un fluide.The invention relates to the field of heat exchangers and in particular to heat exchangers intended to be traversed by a fluid.

L'invention concerne plus particulièrement les échangeurs de chaleur destinés aux véhicules automobiles nécessitant une boucle ou échangeur basse température et une boucle ou échangeur haute température ; l'échangeur basse température étant situé coplanaire à l'échangeur haute température.The invention relates more particularly to heat exchangers for motor vehicles requiring a low temperature loop or exchanger and a high temperature loop or exchanger; the low temperature exchanger being coplanar with the high temperature exchanger.

Un échangeur selon la première partie de la revendication 1 est divulgué dans document EP 0 352 158 . On connaît actuellement sur le marché ce type d'échangeurs de chaleur 30 dans lesquels un raccordement 37 entre l'échangeur basse température 31 et l'échangeur haute température 32 s'effectue grâce à une durit 37, c'est-à-dire un moyen rapporté, généralement sous la forme d'un conduit plastique, liant le collecteur de sortie 35 de la partie haute température 32 au collecteur d'entrée 36 de la partie basse température 31.An exchanger according to the first part of claim 1 is disclosed in document EP 0 352 158 . This type of heat exchanger 30 is currently known on the market in which a connection 37 between the low temperature exchanger 31 and the high temperature exchanger 32 is effected by means of a hose 37, that is to say a hose. reported means, generally in the form of a plastic conduit, linking the outlet manifold 35 of the high temperature portion 32 to the inlet manifold 36 of the low temperature portion 31.

Ce type de solution, illustré par la figure 1, présente l'inconvénient majeur de nécessiter une portion complémentaire 37 à fixer aux deux échangeurs de chaleur ou aux deux parties d'échange de chaleur 31 et 32. Outre le coût additionnel de cette portion rapportée 37, relativement à sa fabrication et à son montage, cette portion complémentaire 37 est susceptible de fuites. En effet, le matériau utilisé pour cette portion complémentaire 37 est soit du plastique relativement souple pour s'adapter à tous types de configurations du bloc moteur et en particulier en fonction de l'agencement de l'échangeur haute température 31 par rapport à l'échangeur basse température 32, soit la durit 37 est en matériau rigide et donc avec une forme bien déterminée. Dans le premier cas, la liaison de la durit 37 avec les deux collecteurs 35, 36 de chacun des échangeurs de chaleur 31, 32 est relativement aisée mais elle est particulièrement fragile et susceptible de se détériorer rapidement. Dans le second cas, la durit 37 est résistante mais alors sa liaison avec chacun des deux collecteurs 35, 36 est particulièrement difficile et les risques de fuite à ces emplacements de liaison particulièrement importants.This type of solution, illustrated by the figure 1 , has the major disadvantage of requiring a complementary portion 37 to be fixed to the two heat exchangers or to the two heat exchange parts 31 and 32. In addition to the additional cost of this reported portion 37, relative to its manufacture and assembly this complementary portion 37 is likely to leak. Indeed, the material used for this complementary portion 37 is either relatively flexible plastic to adapt to all types of configurations of the engine block and in particular according to the arrangement of the high temperature exchanger 31 with respect to the low temperature exchanger 32, the hose 37 is made of rigid material and therefore with a well-defined shape. In the first case, the connection of the hose 37 with the two collectors 35, 36 of each of the heat exchangers 31, 32 is relatively easy but it is particularly fragile and likely to deteriorate rapidly. In the second case, the hose 37 is resistant but then its connection with each of the two collectors 35, 36 is particularly difficult and the risk of leakage at these particularly important connection locations.

On connaît également sur le marché des échangeurs de chaleur 30 associant une partie haute température 31 à une partie basse température 32, l'échangeur 30 présentant une structure unifiée dans laquelle les dimensions en largeur et en épaisseur pour ces deux parties d'échange de chaleur 31, 32 sont rigoureusement identiques. Ce type de structures est illustré par les deux figures 2a et 2b annexées.Heat exchangers 30 are also known on the market, associating a high temperature part 31 with a low temperature part 32, the exchanger 30 having a unified structure in which the width and thickness dimensions for these two heat exchange parts 31, 32 are strictly identical. This type of structures is illustrated by both Figures 2a and 2b attached.

Dans la réalisation illustrée par la figure 2, la partie haute température 31 toujours située au dessus de la partie basse température 32 de sorte qu'il est toujours possible d'autoriser le fluide à passer du collecteur de sortie 33 de la partie haute température 31 au collecteur d'entrée 34 de la partie basse température 32. Dans les réalisations actuelles, du fait essentiellement des problèmes d'engazement (formation de bulles gazeuse dans le fluide essentiellement sous forme liquide), de fabrication et de fuites, il n'est pas possible de prévoir une partie haute température 31 en dessous de la partie basse température 32 de sorte que ce type d'échangeurs de chaleur 30 ne présente pas un bon rendement d'échange thermique.In the realization illustrated by the figure 2 the high temperature portion 31 always located above the low temperature portion 32 so that it is still possible to allow the fluid to pass from the outlet manifold 33 of the high temperature portion 31 to the inlet manifold 34 of the low temperature part 32. In the current achievements, mainly because of engazement problems (formation of gaseous bubbles in the fluid essentially in liquid form), manufacturing and leaks, it is not possible to provide a high temperature part 31 below the low temperature portion 32 so that this type of heat exchanger 30 does not have a good heat exchange efficiency.

L'invention a notamment pour but de surmonter les inconvénients des échangeurs de chaleur précités en proposant un échangeur de chaleur, du type mentionné ci-dessus, autorisant la mise en place de la partie haute température en dessous de la partie basse température.The object of the invention is in particular to overcome the disadvantages of the aforementioned heat exchangers by proposing a heat exchanger, of the type mentioned above, allowing the high temperature part to be placed below the low temperature part.

Elle propose à cet effet un échangeur de chaleur pour fluide haute et basse température, comportant un faisceau de tubes reliant des collecteurs de sortie/entrée de fluide pour au moins une partie à haute température et au moins une partie à basse température, lesdites deux parties :

  • étant aptes à être parcourues par un même fluide, ce fluide parcourant d'abord la partie haute température puis la partie basse température, et
  • comprennent respectivement un collecteur d'entrée/sortie, et
  • sont coplanaires entre elles,
caractérisé en ce que le collecteur de sortie de la partie haute température est reliée directement au collecteur d'entrée de la partie basse température et en ce que la partie à haute température est située en dessous de la partie à basse température.It proposes for this purpose a heat exchanger for high and low temperature fluid, comprising a bundle of tubes connecting the outlet / fluid inlet manifolds for at least one high temperature part and at least one low temperature part, said two parts :
  • being able to be traversed by the same fluid, this fluid first flowing through the high temperature part and then the low temperature part, and
  • respectively include an input / output collector, and
  • are coplanar with each other,
characterized in that the outlet manifold of the high temperature portion is directly connected to the inlet manifold of the low temperature portion and in that the high temperature portion is located below the low temperature portion.

Selon un aspect particulièrement avantageux de l'invention, la structure de l'échangeur selon l'invention est telle que la partie à haute température est située en dessous de la partie à basse température. Du fait que le fluide parcourant l'échangeur, et donc les deux parties haute et basse température, est unique, et que ce fluide parcoure d'abord la partie haute température puis la partie basse température, l'entrée de fluide dans l'échangeur de chaleur selon l'invention est réalisée/située dans la partie inférieure dudit échangeur, à savoir ici dans la partie à haute température, et la sortie de fluide dans l'échangeur de chaleur est réalisée/située dans la partie supérieure dudit échangeur, à l'inverse de ce qui existe dans l'art antérieur (et illustré sur la figure 2).According to a particularly advantageous aspect of the invention, the structure of the exchanger according to the invention is such that the high temperature portion is located below the low temperature portion. Because the fluid flowing through the exchanger, and therefore the two high and low temperature parts, is unique, and this fluid first flows through the high temperature part and then the low temperature part, the fluid inlet into the exchanger of heat according to the invention is made / located in the lower part of said exchanger, namely here in the part to high temperature, and the fluid outlet in the heat exchanger is made / located in the upper part of said exchanger, contrary to what exists in the prior art (and illustrated in FIG. figure 2 ).

On notera qu'outre la structure de l'échangeur (notamment le positionnement dessus-dessous particulier des deux parties et celui de l'entrée/sortie de fluide dans l'échangeur de chaleur), l'invention concerne l'utilisation d'un tel échangeur de chaleur caractérisé en ce que la partie à haute température est située en dessous de la partie à basse température.It will be noted that, in addition to the structure of the exchanger (in particular the particular top-bottom positioning of the two parts and that of the fluid inlet / outlet in the heat exchanger), the invention relates to the use of a such a heat exchanger characterized in that the high temperature portion is located below the low temperature portion.

Par ailleurs, la liaison/fixation directe entre le collecteur de sortie de la partie haute température et le collecteur d'entrée de la partie basse température est assurée grâce à un moyen de communication issu du collecteur de sortie de la partie haute température et/ou du collecteur d'entrée de la partie basse température, c'est-à-dire issu de matière de l'un et/ou l'autre de ces deux éléments.Furthermore, the connection / direct attachment between the outlet manifold of the high temperature part and the inlet manifold of the low temperature part is provided by means of communication from the outlet manifold of the high temperature part and / or the inlet manifold of the low temperature part, that is to say from material of one and / or the other of these two elements.

Enfin, ce moyen de communication consiste en un tube-plongeur ou un dispositif analogue dans sa fonction, à savoir assurer le transport de fluide liquide (et quasiment totalement liquide, sans bulle ou gaz) depuis la première partie de l'échangeur de chaleur vers sa seconde partie.Finally, this means of communication consists of a dip tube or a similar device in its function, namely to ensure the transport of liquid fluid (and almost completely liquid without bubble or gas) from the first part of the heat exchanger to his second part.

On entend par l'expression « les deux parties sont parcourues par un même fluide » le fait que ces deux parties, basse et haute température, sont parcourues par le même fluide qui passe d'abord par une de ces deux parties puis par l'autre, classiquement d'abord par la partie haute température puis par la partie basse température.The expression "the two parts are traversed by the same fluid" means that these two parts, low and high temperature, are traversed by the same fluid which passes first by one of these two parts then by the other, classically firstly by the high temperature part then by the low temperature part.

On entend par l'expression « le collecteur de sortie de la partie haute température est reliée directement au collecteur d'entrée de la partie basse température » le fait que ces deux collecteurs sont reliés l'un à l'autre sans aucun intermédiaire, le ou les moyens permettant la liaison entre ces deux collecteurs étant classiquement issus de matière lors de la fabrication/formation de chacun de ces deux collecteurs.The term "the outlet manifold of the high temperature part is directly connected to the inlet manifold of the low temperature part" means that these two collectors are connected to each other without any intermediate, the or the means allowing the connection between these two collectors being conventionally derived from material during the manufacture / formation of each of these two collectors.

La présente invention évite tout engazement lors du passage du fluide de la partie haute température à la partie basse température malgré le positionnement de la partie basse température au dessus de la partie haute température. En effet, la partie haute température est positionnée en dessous de la partie à basse température, étant entendu que le positionnement dessus-dessous est déterminé par le fait que le fluide monte depuis la partie à haute température vers la partie à basse température, à l'encontre de la force de gravité. Ce positionnement peut également être défini par le positionnement de l'échangeur de chaleur dans le bloc moteur, la partie à haute température étant alors située au-dessus (relativement à la notion d'altitude par rapport au sol terrestre) de la partie à basse température.The present invention avoids any engazement during the passage of the fluid from the high temperature part to the low temperature part despite the positioning of the low temperature part above the high temperature part. Indeed, the high temperature part is positioned below the low temperature part, it being understood that the above-below positioning is determined by the fact that the fluid rises from the high temperature part to the low temperature part, at the same time. against the force of gravity. This positioning can also be defined by the positioning of the heat exchanger in the engine block, the high-temperature part then being located above (relative to the notion of altitude relative to the terrestrial ground) of the low part. temperature.

D'autres caractéristiques de l'échangeur de chaleur interne sont indiquées ci-après.

  • le collecteur d'entrée de la partie basse température comprend un tube plongeur ;
  • le collecteur de sortie de la partie haute température comprend un fourreau ou manchon destiné à accueillir ledit tube plongeur ;
  • le collecteur de sortie de la partie haute température est reliée par clippage au collecteur d'entrée de la partie basse température ;
  • le fourreau ou manchon comprend un moyen destiné à isoler le collecteur de sortie de la partie haute température du collecteur d'entrée de la partie basse température ;
  • ledit moyen consiste en une cloison s'étendant perpendiculairement à l'axe longitudinal dudit fourreau ou manchon ;
  • la partie à haute température présente la même largeur et la même épaisseur que la partie à basse température ;
  • la partie à haute température présente une largeur et une épaisseur différente de celle de la partie à basse température ;
  • le collecteur de sortie de la partie haute température est relié par rivetage, vissage et/ou clippage au collecteur d'entrée de la partie basse température.
Other features of the internal heat exchanger are shown below.
  • the inlet manifold of the low temperature portion comprises a dip tube;
  • the outlet manifold of the high temperature part comprises a sleeve or sleeve intended to receive said dip tube;
  • the outlet manifold of the high temperature part is connected by clipping to the inlet manifold of the low temperature part;
  • the sleeve or sleeve comprises means for isolating the outlet manifold from the high temperature portion of the inlet manifold of the low temperature portion;
  • said means consists of a partition extending perpendicularly to the longitudinal axis of said sleeve or sleeve;
  • the high temperature portion has the same width and thickness as the low temperature portion;
  • the high temperature portion has a width and a thickness different from that of the low temperature portion;
  • the outlet manifold of the high temperature part is connected by riveting, screwing and / or clipping to the inlet manifold of the low temperature part.

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

  • la figure 1 illustre un mode de réalisation d'un échangeur de chaleur selon l'art antérieur dans lequel la partie haute température et la partie basse température sont distinctes et reliées par un tube ou durit ;
  • la figure 2 illustre un autre type de réalisation d'échangeur de chaleur selon l'art antérieur avec deux variantes pour chacune de ces deux figures
  • la figure 3 est une vue en perspective d'un mode de réalisation d'un échangeur de chaleur selon l'invention dans lequel les deux parties sont distinctes et de dimensions différentes l'une de l'autre ;
  • la figure 4 illustre une vue agrandie de l'échangeur de chaleur de la figure 3 au niveau du collecteur de sortie de la partie haute température reliée à la partie basse température ;
  • la figure 5 est une vue en perspective d'un autre mode de réalisation d'un échangeur de chaleur selon l'invention dans lequel les deux parties présentent les mêmes dimensions au moins en épaisseur et largeur ;
  • la figure 6 illustre une vue agrandie de l'échangeur de chaleur de la figure 5 au niveau du collecteur de sortie de la partie haute température reliée à la partie basse température.
In the description which follows, made only by way of example, reference is made to the appended drawings, in which:
  • the figure 1 illustrates an embodiment of a heat exchanger according to the prior art wherein the high temperature part and the low temperature part are separate and connected by a tube or hose;
  • the figure 2 illustrates another type of embodiment of heat exchanger according to the prior art with two variants for each of these two figures
  • the figure 3 is a perspective view of an embodiment of a heat exchanger according to the invention in which the two parts are distinct and of different dimensions from each other;
  • the figure 4 illustrates an enlarged view of the heat exchanger of the figure 3 at the outlet manifold of the high temperature part connected to the low temperature part;
  • the figure 5 is a perspective view of another embodiment of a heat exchanger according to the invention wherein the two parts have the same dimensions at least in thickness and width;
  • the figure 6 illustrates an enlarged view of the heat exchanger of the figure 5 at the outlet manifold of the high temperature part connected to the low temperature part.

On comprendra que, dans l'invention objet de la présente demande ainsi que pour les échangeurs de chaleur de l'art antérieur, le fluide circulant dans les faisceaux de tubes de chacune des parties, à haute et basse température, est destiné à être balayé par un même flux d'air qui balaye le faisceau généralement perpendiculairement au plan de l'échangeur de chaleur.It will be understood that, in the subject-matter of the present invention as well as for the heat exchangers of the prior art, the fluid circulating in the bundles of tubes of each of the parts, at high and low temperature, is intended to be swept by the same air flow which sweeps the beam generally perpendicularly to the plane of the heat exchanger.

Les échangeurs de chaleur 30 présentés sur les figures 1 et 2 sont des échangeurs de chaleur 30 selon l'art antérieur et comportent à l'instar des échangeurs de chaleur 1, 2 selon l'invention, représentés sur les figures 3 à 6, deux parties, à haute 3 et à basse 4 température.The heat exchangers 30 shown on the Figures 1 and 2 are heat exchangers 30 according to the prior art and comprise, like the heat exchangers 1, 2 according to the invention, represented on the Figures 3 to 6 , two parts, high 3 and low 4 temperature.

Chacune de ces parties à haute 3 et à basse 4 température comporte un collecteur d'entrée de fluide 5, 6 et un collecteur de sortie de fluide 7, 8 ainsi qu'un faisceau de tubes ou analogues 9, 10 pour l'échange de chaleur entre le fluide circulant dans ces faisceaux de tubes 9, 10 et un fluide circulant, classiquement de l'air. Ces faisceaux d'échange de chaleur 9, 10 sont ici constitués de tubes entre lesquels sont disposées/fixées des ailettes ou perturbateurs, non visibles sur les figures annexées, destinés à perturber le flux d'air pour parvenir à un meilleur échange de chaleur. Les faisceaux de tubes 9, 10 sont classiquement fixés respectivement aux collecteurs d'entrée 5, 6 et de sortie 7, 8 via les extrémités de tubes.Each of these high and low temperature portions 3 comprises a fluid inlet manifold 5, 6 and a fluid outlet manifold 7, 8 and a tube bundle or the like 9, 10 for the exchange of fluid. heat between the fluid flowing in these bundles of tubes 9, 10 and a circulating fluid, typically air. These heat exchange bundles 9, 10 here consist of tubes between which are arranged / fixed fins or disrupters, not visible in the accompanying figures, for disrupting the air flow to achieve a better heat exchange. The bundles of tubes 9, 10 are conventionally fixed respectively to the inlet manifolds 5, 6 and outlet 7, 8 via the ends of tubes.

Dans la suite, on considérera que le fluide circulant dans les tubes 9, 10 est du liquide de refroidissement moteur et que les tubes des faisceaux 9, 10 sont des tubes plats mais il sera entendu que l'invention ne se limite pas à ces modes d'exécution et que n'importe quel type de fluide peut être envisagé avec l'invention tout comme tous types d'échangeurs de chaleur, par exemple notamment à plaques, à tubes, à collecteurs constitués d'une ou plusieurs pièces et présentant toutes formes géométriques.In the following, it will be considered that the fluid flowing in the tubes 9, 10 is engine coolant and that the tubes of the bundles 9, 10 are flat tubes, but it will be understood that the invention is not limited to these modes. and that any type of fluid can be envisaged with the invention as all types of heat exchangers, for example including plates, tubes, collectors consist of one or more parts and all having geometric shapes.

Les collecteurs 5, 6, 7, 8 de l'échangeur de chaleur 1, 2 selon l'invention sont constitués d'une plaque collectrice fixant les extrémités des tubes des faisceau d'échange et d'un couvercle ; ces deux éléments plaque collectrice / couvercle formant le collecteur de l'invention. La plaque collectrice est classiquement en métal tandis que le couvercle est idéalement en plastique mais on pourra également prévoir des collecteurs tout métalliques. Par ailleurs, selon une possibilité offerte par l'invention, seul un des collecteurs 5, 6, 7 ou 8, c'est-à-dire son couvercle, de l'échangeur de chaleur 1, 2 pourra être en plastique, de préférence le collecteur d'entrée 6 de la partie à basse température 4, tandis qu'au moins les collecteurs d'entrée 5 et dé sortie 7 de la partie à haute température 3 seront métalliques.The collectors 5, 6, 7, 8 of the heat exchanger 1, 2 according to the invention consist of a collector plate fixing the ends of the tubes of the exchange bundle and a lid; these two plate collector / cover forming the collector of the invention. The collector plate is conventionally made of metal while the cover is ideally plastic but it can also provide all-metal collectors. Furthermore, according to a possibility offered by the invention, only one of the collectors 5, 6, 7 or 8, that is to say its lid, of the heat exchanger 1, 2 may be plastic, preferably the inlet manifold 6 of the low temperature part 4, while at least the inlet manifolds 5 and outlet 7 of the high temperature portion 3 will be metallic.

L'échangeur de chaleur 1 représenté sur les figures 3 et 4 présente une partie à haute température 3 de dimensions bien supérieure à celles de la partie à basse température 4. En effet, la surface d'échange du faisceau 9 de la partie haute température 3 est sensiblement ici entre 3 et 5 fois plus importante que la surface d'échange du faisceau 10 de la partie à basse température 4. Le collecteur d'entrée 5 de la partie à haute température 3 comporte une tubulure 11 d'un diamètre également bien supérieur au diamètre de la tubulure 12 du collecteur de sortie 8 de la partie à basse température 3.The heat exchanger 1 shown on the figures 3 and 4 has a high temperature portion 3 of much greater dimensions than those of the low temperature portion 4. Indeed, the beam exchange surface 9 of the high temperature portion 3 is substantially here between 3 and 5 times greater than the beam exchange surface 10 of the low temperature portion 4. The inlet manifold 5 of the high temperature portion 3 comprises a pipe 11 of a diameter also much greater than the diameter of the pipe 12 of the outlet manifold 8 of the low temperature part 3.

Le collecteur de sortie 7 de la partie à haute température 3 comporte une tubulure 13 pouvant être idéalement d'un diamètre inférieur au diamètre de la tubulure 11 du collecteur d'entrée 5 car la quantité de fluide circulant par la tubulure du collecteur de sortie 7 est inférieur à celle entrant par la tubulure 11 du collecteur d'entrée 5 ; la différence étant constitué par le fluide circulant dans la partie à basse température 4 de l'échangeur de chaleur 1.The outlet manifold 7 of the high temperature portion 3 comprises a pipe 13 which may ideally be of a diameter smaller than the diameter of the pipe 11 of the inlet manifold 5 because the quantity of fluid flowing through the pipe of the outlet manifold 7 is less than that entering through the manifold 11 of the inlet manifold 5; the difference being constituted by the fluid flowing in the low temperature portion 4 of the heat exchanger 1.

On notera également que dans ce mode de réalisation la largeur ainsi qu'éventuellement l'épaisseur de la partie à basse température 4 est/sont inférieure(s) à celle(s) de la partie à haute température 3.Note also that in this embodiment the width as well as possibly the thickness of the low temperature portion 4 is / are lower than that (s) of the high temperature portion 3.

Comme cela est visible sur la figure 4, le collecteur d'entrée 6 de la partie à basse température 4 comporte un tube circulaire ou téton plongeur 14, situé dans sa partie inférieure en regard ou à proximité du collecteur de sortie 7 de la partie à haute température 3, tandis que le collecteur de sortie 7 de la partie à haute température 3 comporte un orifice cylindrique 15 de forme complémentaire à celle du téton plongeur 14 de sorte que ce dernier 14 s'emmanche à l'intérieur dudit orifice 15.As is visible on the figure 4 , the inlet manifold 6 of the low temperature portion 4 comprises a circular tube or plunger rod 14, located in its lower part facing or near the outlet manifold 7 of the high temperature portion 3, while the outlet manifold 7 of the high temperature portion 3 has a cylindrical orifice 15 of complementary shape to that of the plunger pin 14 so that the latter 14 is enclosed inside said orifice 15.

La fonction de l'orifice cylindrique 15 sert à éviter l'engazement du fluide lors de son passage de la partie à haute température vers la partie à basse température. Ainsi, grâce à ce cylindre ou ce tube 15, de forme cylindrique ou tous autres formes linéaires, la formation de bulles dans le fluide passant de la partie à haute température vers la partie à basse température est empêchée.The function of the cylindrical orifice 15 serves to prevent the engazement of the fluid during its passage from the high temperature portion to the low temperature portion. Thus, with this cylinder or tube 15, of cylindrical shape or any other linear forms, the formation of bubbles in the fluid passing from the high temperature portion to the low temperature portion is prevented.

L'orifice, fourreau ou manchon 15, est ici composé de deux parties, l'une supérieure 15' présentant un diamètre sensiblement égal au diamètre du susdit tube circulaire 14 et l'autre inférieure 15'' présentant un diamètre inférieur au diamètre dudit tube circulaire 14 ou de ladite partie 15' de sorte que le tube circulaire 14 vient en butée de cette partie inférieure 15". La partie inférieure 15'' de l'orifice circulaire 15 débouche dans sa partie inférieure dans une chambre ouverte 16 apte à stocker une partie du fluide entrant dans le collecteur de sortie 7 de la partie à haute température 3 afin de circuler ensuite par cet orifice 15 puis dans le tube circulaire 14 pour arriver dans le collecteur d'entrée 6 de la partie à basse température 4.The orifice, sheath or sleeve 15, is here composed of two parts, one upper 15 'having a diameter substantially equal to the diameter of the aforesaid circular tube 14 and the other lower 15' 'having a diameter smaller than the diameter of said tube circular 14 or said portion 15 'so that the circular tube 14 abuts this lower portion 15. The lower portion 15' 'of the circular orifice 15 opens in its lower part in an open chamber 16 able to store a portion of the fluid entering the outlet manifold 7 of the high temperature portion 3 to then circulate through this orifice 15 and then into the circular tube 14 to arrive in the inlet manifold 6 of the low temperature portion 4.

Le tube circulaire 14 comporte ici au moins une plaque latérale 17 disposant d'orifice(s) destiné(s) à autoriser une fixation par vissage 18. Cette fixation par vissage/rivetage 18 constitue une fixation complémentaire et optionnelle à l'emmanchement du tube circulaire 14 dans l'orifice 15, cet emmanchement réalisant une fixation par clippage grâce par exemple à une rainure périphérique 19 présente sur le tube circulaire 14 et destinée à loger une protubérance 20 également périphérique et s'étendant en vis-à-vis à partir de l'orifice 15.The circular tube 14 here comprises at least one side plate 17 having orifice (s) intended (s) to allow a fixing by screwing 18. This fixing by screwing / riveting 18 constitutes a complementary fixation and optional to the fitting of the circular tube 14 in the orifice 15, this fitting making a fixation by clipping for example to a peripheral groove 19 present on the circular tube 14 and intended to accommodate a protrusion 20 also peripheral and extending vis-à-vis from the orifice 15.

La section du tube plongeant 14 ainsi que celle de l'orifice 15 sont ici circulaire mais il est bien entendu que l'on peut prévoir toutes formes et dimensions dans la mesure où les portions du tube 14 et du manchon 15 destinées à coopérer entre elles sont adaptées pour s'interconnecter.The section of the plunging tube 14 and that of the orifice 15 are here circular, but it is understood that all shapes and dimensions can be provided insofar as the portions of the tube 14 and of the sleeve 15 intended to cooperate with each other. are adapted to interconnect.

Les figures 5 et 6 présentent un second mode d'exécution d'un échangeur de chaleur selon l'invention. La structure restapt sensiblement identique à l'exception du fait que les deux parties, à haute 3 et à basse 4 température, présentent des dimensions identiques, notamment tant en largeur qu'en épaisseur, ce qui autorise à réaliser deux uniques collecteurs 21, 22, chacun de ces deux collecteurs 21, 22 étant subdivisé en deux pour former respectivement le collecteur d'entrée 5 de la partie à haute température 3 et le collecteur de sortie 8 de la partie à basse température 4 pour l'un 21 et le collecteur de sortie 7 de la partie à haute température 3 et le collecteur d'entrée 6 de la partie à basse température 4 pour l'autre 22.The figures 5 and 6 show a second embodiment of a heat exchanger according to the invention. The structure remains substantially identical except for the fact that the two parts, high 3 and low 4 temperature, have identical dimensions, in particular both in width and thickness, which allows to perform two single collectors 21, 22 each of these two collectors 21, 22 being subdivided into two to form respectively the inlet manifold 5 of the high temperature portion 3 and the outlet manifold 8 of the low temperature portion 4 for the one 21 and the collector 7 of the high temperature portion 3 and the inlet manifold 6 of the low temperature portion 4 for the other 22.

Dans cette réalisation, le tube 14 du collecteur d'entrée 6 de la partie à basse température 4 n'est pas nécessairement enfoncé dans le fourreau/manchon 15 du collecteur de sortie de la partie à haute température 3 et il suffit que l'ouverture du tube 14 coïncide avec l'ouverture du fourreau/manchon 15 afin que le fluide passe effectivement de l'un 3/7 à l'autre 4/6, comme cela est visible sur la figure 6. Dans cette réalisation, la séparation entre les collecteurs de sortie 7 et d'entrée 6 respectivement pour la partie à haute température 3 et la partie à basse température 4 est réalisée grâce à une cloison 23 s'étendant idéalement à partir de l'extrémité du tube 14 ou du fourreau/manchon 15, ici du fourreau/manchon, jusqu'à une ou plusieurs paroi(s) du collecteur unique 22.In this embodiment, the tube 14 of the inlet manifold 6 of the low temperature portion 4 is not necessarily pushed into the sleeve / sleeve 15 of the outlet manifold of the high temperature portion 3 and it is sufficient that the opening of the tube 14 coincides with the opening of the sleeve / sleeve 15 so that the fluid actually passes. from one 3/7 to another 4/6, as can be seen on the figure 6 . In this embodiment, the separation between the outlet manifolds 7 and inlet 6 respectively for the high temperature portion 3 and the low temperature portion 4 is achieved through a partition 23 extending ideally from the end of the tube 14 or sleeve / sleeve 15, here of the sleeve / sleeve, to one or more walls (s) of the single collector 22.

Par ailleurs, l'échangeur de chaleur 1, 2 selon l'invention remplissant les mêmes fonctions que des échangeurs de chaleur classiques, sa structure n'en est pas différente et n'exclut ou ne nécessite aucun élément/pièce, tel que les joues de dilation disposés aux deux extrémités du faisceau de tubes ou les moyens ou plots de fixation de l'échangeur de chaleur dans le bloc moteur.Furthermore, the heat exchanger 1, 2 according to the invention fulfilling the same functions as conventional heat exchangers, its structure is not different and does not exclude or require any element / part, such as the cheeks at the two ends of the bundle of tubes or the means or studs for fixing the heat exchanger in the engine block.

L'invention se rapporte également à la réalisation d'un échangeur haute température / basse température, illustré aux figures 5 et 6, dans lequel la plaque collectrice et le couvercle, formant le collecteur de l'invention, sont commun aux deux parties haute et basse température. Ainsi, le collecteur 21, comprenant un couvercle unique et une plaque collectrice unique, est utilisé pour la plaque collectrice et le couvercle respectivement le collecteur d'entrée de la partie à haute température 3 et le collecteur de sortie de la partie à basse température 4 tandis que le collecteur 22, comprenant également un couvercle unique et une plaque collectrice unique, est utilisé pour la plaque collectrice et le couvercle respectivement du collecteur de sortie de la partie à haute température 3 et le collecteur d'entrée de la partie à basse température 4. Ainsi, les deux collecteurs 21, 22 forment les collecteurs d'entrée/sortie de la partie à haute température 3 et de la partie à basse température 4.The invention also relates to the production of a high temperature / low temperature exchanger, illustrated in FIGS. figures 5 and 6 wherein the header plate and the cover forming the manifold of the invention are common to both the high and low temperature portions. Thus, the collector 21, comprising a single cover and a single collector plate, is used for the collector plate and the cover respectively the inlet manifold of the high-temperature part 3 and the outlet collector of the low-temperature part 4 while the collector 22, also comprising a single cover and a single collector plate, is used for the collector plate and the cover respectively of the outlet manifold of the high-temperature part 3 and the inlet collector of the low-temperature part 4. Thus, the two collectors 21, 22 form the inlet / outlet manifolds of the high temperature part 3 and the low temperature part 4.

Claims (10)

  1. Heat exchanger (1, 2) for high- and low-temperature fluid, comprising a bundle of tubes (9, 10) linking fluid output/input manifolds (5, 6, 7, 8) for at least a part at high temperature (3) and at least a part at low temperature (4), said two parts:
    - being capable of being passed through by one and the same fluid, this fluid passing first of all through the high-temperature part (3) then through the low-temperature part (4), and
    - respectively comprise an input/output manifold (5/7 and 6/8), and
    - are mutually coplanar,
    the output manifold (7) of the high-temperature part (3) is linked directly to the input manifold (6) of the low-temperature part (4), characterized in that the input manifold (6) of the low-temperature part (4) comprises a dip tube (14) .
  2. Heat exchanger (1, 2) according to Claim 1, characterized in that the output manifold (7) of the high-temperature part (3) comprises a sheath or sleeve (15) intended to accommodate said dip tube (14).
  3. Heat exchanger (1, 2) according to either one of the preceding claims, characterized in that the output manifold (7) of the high-temperature part (3) is linked by clipping to the input manifold (6) of the low-temperature part (4).
  4. Heat exchanger (1, 2) according to Claim 2, characterized in that the sheath or sleeve (15) comprises a means (23) intended to isolate the output manifold (7) of the high-temperature part (3) from the input manifold (6) of the low-temperature part (4).
  5. Heat exchanger (1, 2) according to Claim 4, characterized in that said means consists of a partition (23) extending at right angles to the longitudinal axis of said sheath or sleeve (15).
  6. Heat exchanger (1, 2) according to Claim 4 or 5, characterized in that the high-temperature part (3) has the same width and the same thickness as the low-temperature part (4).
  7. Heat exchanger (1, 2) according to either one of Claims 1 and 2, characterized in that the high-temperature part (3) has a width and a thickness different from that of the low-temperature part (4).
  8. Heat exchanger (1, 2) according to Claim 7, characterized in that the output manifold (7) of the high-temperature part (3) is linked by riveting, screwing (18) and/or clipping to the input manifold (6) of the low-temperature part (4) .
  9. Heat exchanger (1, 2) according to any one of the preceding claims, characterized in that the two manifolds (21, 22) form the input/output manifolds of the high-temperature part (3) and of the low-temperature part (4).
  10. Use of a heat exchanger (1, 2) according to any one of the preceding claims, characterized in that the high-temperature part (3) is situated below the low-temperature part (4).
EP08804464.9A 2007-10-23 2008-09-19 Heat exchanger for high and low temperature fluids Active EP2208010B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0707404A FR2922637B1 (en) 2007-10-23 2007-10-23 HEAT EXCHANGER FOR HIGH AND LOW TEMPERATURE FLUIDS
PCT/EP2008/062530 WO2009053182A1 (en) 2007-10-23 2008-09-19 Heat exchanger for high and low temperature fluids

Publications (2)

Publication Number Publication Date
EP2208010A1 EP2208010A1 (en) 2010-07-21
EP2208010B1 true EP2208010B1 (en) 2018-11-14

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FR (1) FR2922637B1 (en)
WO (1) WO2009053182A1 (en)

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Publication number Priority date Publication date Assignee Title
FR3048021B1 (en) * 2016-02-23 2020-02-21 Renault S.A.S. INTERNAL COMBUSTION ENGINE COOLING INTERFACES
RU197309U1 (en) * 2019-11-12 2020-04-21 Роберт Овсепович Петросян Dismountable heat exchanger with tubes
LU102213B1 (en) * 2020-11-18 2022-05-18 Estra Automotive Systems Luxembourg S A R L Cooling module for an internal combustion engine

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Publication number Priority date Publication date Assignee Title
FR2634546B1 (en) * 1988-07-20 1991-08-02 Valeo HEAT EXCHANGER DEVICE FOR MULTIPLE COOLING CIRCUITS USING THE SAME HEAT FLUID
KR100389698B1 (en) * 2000-12-11 2003-06-27 삼성공조 주식회사 High/Low Temperature Water Cooling System
DE10253813B4 (en) * 2002-11-18 2005-02-10 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Air-cooled radiator with successively flowed through by cooling air cooler elements

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FR2922637A1 (en) 2009-04-24
FR2922637B1 (en) 2009-11-20
EP2208010A1 (en) 2010-07-21
WO2009053182A1 (en) 2009-04-30

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