WO2009016102A1 - Heat exchanger for gas, particularly for the exhaust gases of an engine - Google Patents

Heat exchanger for gas, particularly for the exhaust gases of an engine Download PDF

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Publication number
WO2009016102A1
WO2009016102A1 PCT/EP2008/059752 EP2008059752W WO2009016102A1 WO 2009016102 A1 WO2009016102 A1 WO 2009016102A1 EP 2008059752 W EP2008059752 W EP 2008059752W WO 2009016102 A1 WO2009016102 A1 WO 2009016102A1
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WO
WIPO (PCT)
Prior art keywords
heat exchanger
protuberances
housing
ducts
gas
Prior art date
Application number
PCT/EP2008/059752
Other languages
French (fr)
Inventor
Jesus Jimenez Palacios
Original Assignee
Valeo Termico S.A.
Priority date (The priority date 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 date listed.)
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40108581&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2009016102(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Valeo Termico S.A. filed Critical Valeo Termico S.A.
Priority to EP08786413.8A priority Critical patent/EP2171386B1/en
Priority to ES08786413.8T priority patent/ES2554166T3/en
Priority to PL08786413T priority patent/PL2171386T3/en
Publication of WO2009016102A1 publication Critical patent/WO2009016102A1/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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F28D7/1684—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits having a non-circular cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
    • F02M26/32—Liquid-cooled heat exchangers
    • 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
    • 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
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/26—Safety or protection arrangements; Arrangements for preventing malfunction for allowing differential expansion between elements

Definitions

  • the present invention relates to a heat exchanger for gas, in particular for the exhaust gases of an engine.
  • the invention is particularly applicable to exchangers for recycling or recirculating the exhaust gas of an engine (EGRC).
  • the two heat exchanging media are separated by a wall.
  • the heat exchanger itself may have different configurations: for example, it may consist of a housing inside which is arranged a series of parallel conduits for the passage of gases, the refrigerant circulating through the housing outwards to the ducts; in another embodiment, the exchanger consists of a series of parallel plates which constitute the heat exchange surfaces, so that the exhaust gases and the refrigerant circulate between two plates in alternating layers.
  • connection between the conduits and the housing can be of different types.
  • the ducts are fixed at their ends between two support plates coupled in each end of the casing, the two support plates having a plurality of orifices for the placement of the respective ducts. Said support plates are attached to turn to means of connection with the recycling line.
  • connection means may consist of a V-shaped connection or of a peripheral connection flange or flange, depending on the design of the recycling pipe where the exchanger is mounted.
  • the support plate is integrated into a single piece, the connection means forming a single connection flange.
  • the connection means may also consist of a gas reservoir disposed in one or both ends of the housing.
  • conduits which have protuberances on their outer surface, directed outwards to maintain the ducts positioned at a determined distance from one another, and moreover maintain a distance between the ducts located at the periphery and the casing. who shelters them.
  • the object of the gas heat exchanger, in particular for the exhaust gases of an engine, of the present invention is to overcome the drawbacks of exchangers known in the art, by providing a considerable increase in the fatigue resistance and durability of the heat exchanger, without increasing its cost of production.
  • the gas heat exchanger in particular for the exhaust gases of an engine, object of the present invention, is of the type which comprises a plurality of parallel ducts arranged inside a housing, through which circulate the gases to be cooled by heat exchange with a refrigerating fluid, and is characterized in that the casing comprises a series of protuberances stamped on its surface and directed towards the inside thereof, so that said protuberances are arranged at a predetermined distance from the duct assembly, thereby ensuring a controlled expansion of the ducts prior to an increase in pressure.
  • gas ducts tend to swell during the operation of the heat exchanger, being able to exceed 4 bars of internal pressure.
  • the protuberances are stamped on the housing, instead of belonging to the conduits themselves as was the case in the state of the art, it is possible to define between the housing and the ducts a predetermined space that can effectively limit the deformation of said ducts due to the increase in pressure. As a result, the fatigue resistance of the conduits as well as the durability of the exchanger will be increased. In addition, this improvement does not imply an increase in the manufacturing cost since the protuberances are produced in the casing at the same time as, for example, the orifices of the inlet and outlet ducts of the refrigerant circuit.
  • the height of the protuberances will be that required to maintain the necessary distance between the ducts and the housing.
  • the geometry of these protuberances may also be different depending on the shapes of the ducts and needs, which may be circular, rectangular, linear, etc.
  • the protuberances include in their end a flat surface intended to come into contact with a conduit.
  • said planar surface has a square or rectangular shape.
  • the protuberances are arranged in at least one side of the casing forming a series of parallel queues separated from each other.
  • the rows of protuberances are spaced from each other by at least 20% of the length of the housing.
  • the distance between the protuberances can vary between 20 and 40 mm.
  • the exchanger includes at least two rows of protuberances, preferably three rows of protuberances.
  • the protuberances are disposed in each upper and lower face of the housing.
  • the two upper and lower faces each include six protuberances.
  • the casing comprises an inlet and an outlet of the refrigerant circuit, each consisting of a circumferential duct which extends linearly.
  • the intake and outlet ducts extend perpendicularly.
  • FIG. 1 is a perspective view of a heat exchanger, according to a preferred embodiment of the invention
  • FIG. 2 is a perspective view of
  • FIG. 1 heat exchanger of Figure 1, without the gas tanks, and in a longitudinal section of the housing to show the set of parallel conduits housed inside; and
  • FIG. 3 is a cross-sectional view of the exchanger of FIG. 1.
  • the gas heat exchanger 1 in particular for the exhaust gases of an engine, comprises a set of parallel ducts 2, which in this example are rectangular planes, intended for the circulation of gases with a heat exchange with a refrigeration fluid.
  • Said set of parallel ducts 2 is housed inside a casing 3 which in this case is also of rectangular section.
  • FIG. 3 shows a cross-section of the heat exchanger
  • the two ends of the duct assembly 2 are each fixed to the support plates 4, which have a plurality of orifices 2a for the positioning of the ducts 2.
  • Said support plates 4 are respectively connected to the two ends of the casing 3.
  • the casing 3 includes in both ends the gas tanks 5 connected to the gas recirculation line. Similarly, the casing 3 includes each intake duct 6 and outlet 7 of the refrigerant circuit.
  • the casing 3 comprises a series of protuberances 8 directed towards the inside thereof so that said protuberances 8 are in direct contact with the set of ducts 2.
  • the housing 3 can be manufactured by forming a ferrule by spinning and soldering by means of a special machine, it is possible to punch a series of protuberances 8 on the housing 3 directed towards the inside of this housing. ci in predetermined areas. These protuberances 8 may be located in the four surfaces of the housing 3 and at any position.
  • the protuberances 8 are arranged in both upper and lower faces of the housing 3, each upper and lower layer having six protuberances divided into two parallel rows of three.
  • said improvement does not imply an increase in the manufacturing cost since the protuberances 8 are produced in the casing 3 at the same time as, for example, the orifices of the inlet ducts 6 and outlet 7 of the circuit refrigerant.
  • the height of the protuberances 8 will be that required to maintain the necessary distance between the ducts 2 and the casing 3.
  • These protuberances 8 may also be different, depending on the shapes of the ducts 2 and needs, which may be circular, rectangular, linear, etc.

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

Abstract

Heat exchanger for gas, particularly for the exhaust gases of an engine, comprising a plurality of parallel passages (2) positioned inside a casing (3) and through which the gases to be cooled by exchange of heat with a coolant fluid flow. It is characterized in that the casing (3) comprises a series of protrusions (8) stamped on its surface and facing towards the inside thereof, so that the said protrusions (8) lie a predetermined distance away from the collection of passages (2), thus ensuring controlled expansion of the passages (2) before the pressure increases. The fatigue strength and endurance of the heat exchanger are both considerably improved without increasing the cost of production.

Description

ECHANGEUR DE CHALEUR POUR GAZ, EN PARTICULIER POUR LES GAZ D'ECHAPPEMENT D'UN MOTEUR HEAT EXCHANGER FOR GAS, ESPECIALLY FOR EXHAUST GASES OF AN ENGINE
La présente invention concerne un échangeur de chaleur pour gaz, en particulier pour les gaz d'échappement d ' un moteur .The present invention relates to a heat exchanger for gas, in particular for the exhaust gases of an engine.
L'invention s'applique particulièrement a des échangeurs de recyclage ou de recirculation des gaz d'échappement d'un moteur (EGRC) .The invention is particularly applicable to exchangers for recycling or recirculating the exhaust gas of an engine (EGRC).
ANTECEDENTS DE L ' INVENTION .BACKGROUND OF THE INVENTION
Dans certains échangeurs de chaleur destinés au refroidissement de gaz, par exemple ceux utilisés dans les systèmes de recyclage des gaz d'échappement vers l'admission d'un moteur à explosion, les deux milieux qui échangent la chaleur sont séparés par une paroi .In some heat exchangers for gas cooling, for example those used in exhaust gas recirculation systems to the inlet of an internal combustion engine, the two heat exchanging media are separated by a wall.
L ' échangeur de chaleur (ou thermique) proprement dit peut avoir différentes configurations : par exemple, il peut consister en un carter à l'intérieur duquel est agencée une série de conduits parallèles pour le passage des gaz, le réfrigérant circulant à travers le carter, vers l'extérieur jusqu'aux conduits ; dans une autre réalisation, 1 ' échangeur consiste en une série de plaques parallèles qui constituent les surfaces d'échange de chaleur, de telle sorte que les gaz d'échappement et le réfrigérant circulent entre deux plaques, en couches alternées.The heat exchanger (or thermal) itself may have different configurations: for example, it may consist of a housing inside which is arranged a series of parallel conduits for the passage of gases, the refrigerant circulating through the housing outwards to the ducts; in another embodiment, the exchanger consists of a series of parallel plates which constitute the heat exchange surfaces, so that the exhaust gases and the refrigerant circulate between two plates in alternating layers.
Dans le cas des échangeurs thermiques à faisceau de conducteurs, le raccordement entre les conduits et le carter peut être de différents types. Généralement, les conduits sont fixés par leurs extrémités entre deux plaques de support accouplées dans chaque extrémité du carter, les deux plaques de support présentant une pluralité d'orifices pour le placement des conduits respectifs. Lesdites plaques de support sont fixées à leur tour à des moyens de connexion avec la conduite de recyclage.In the case of heat exchangers with a bundle of conductors, the connection between the conduits and the housing can be of different types. Generally, the ducts are fixed at their ends between two support plates coupled in each end of the casing, the two support plates having a plurality of orifices for the placement of the respective ducts. Said support plates are attached to turn to means of connection with the recycling line.
Lesdits moyens de connexion peuvent consister en une connexion en V ou bien en un rebord périphérique de connexion ou bride, en fonction de la conception de la conduite de recyclage où est monté l'échangeur. Dans certains cas, la plaque de support est intégrée en une pièce unique, les moyens de connexion formant une bride de connexion unique. Les moyens de connexion peuvent aussi consister en un réservoir à gaz disposé dans l'une ou dans les deux extrémités du carter.Said connection means may consist of a V-shaped connection or of a peripheral connection flange or flange, depending on the design of the recycling pipe where the exchanger is mounted. In some cases, the support plate is integrated into a single piece, the connection means forming a single connection flange. The connection means may also consist of a gas reservoir disposed in one or both ends of the housing.
Il convient de souligner que les conduits de gaz tendent à gonfler durant le fonctionnement de l'échangeur thermique. Pour résoudre ce problème, on connaît des conduits qui présentent des protubérances sur leur surface extérieure, dirigées vers l'extérieur pour maintenir les conduits positionnés à une distance déterminée entre eux, et maintenir de plus une distance entre les conduits situés en périphérie et le carter qui les abrite.It should be emphasized that the gas lines tend to swell during operation of the heat exchanger. To solve this problem, there are known conduits which have protuberances on their outer surface, directed outwards to maintain the ducts positioned at a determined distance from one another, and moreover maintain a distance between the ducts located at the periphery and the casing. who shelters them.
De cette façon, en cas de gonflement des conduits dû à une hausse de pression, une distance minimum est garantie entre lesdits conduits, ainsi qu'entre l'ensemble de conduits et le carter, évitant ainsi une détérioration éventuelle desdits conduits.In this way, in case of swelling of the ducts due to an increase in pressure, a minimum distance is guaranteed between said ducts, as well as between the ducts and the casing, thus avoiding any deterioration of said ducts.
Les brevets US 6269870 Bl et EP 0851197 A2 décrivent des échangeurs thermiques qui comprennent un faisceau de conduits de forme rectangulaire pourvus desdites protubérances .US Patents 6269870 B1 and EP 0851197 A2 disclose heat exchangers which comprise a rectangular shaped conduit bundle provided with said protuberances.
Cependant, les conduits de gaz peuvent arriver à dépasser les 4 bars de pression interne. Ceci implique une diminution de la résistance mécanique de 1 ' échangeur thermique . DESCRIPTION DE L'INVENTIONHowever, the gas ducts may be able to exceed 4 bars of internal pressure. This implies a decrease in the mechanical strength of the heat exchanger. DESCRIPTION OF THE INVENTION
L'objet de 1 ' échangeur de chaleur pour gaz, en particulier pour les gaz d'échappement d'un moteur, de la présente invention est de remédier aux inconvénients que présentent les échangeurs connus dans l'art, en apportant une augmentation considérable de la résistance à la fatigue et de la durabilité de 1 ' échangeur thermique, sans augmenter son coût de production.The object of the gas heat exchanger, in particular for the exhaust gases of an engine, of the present invention is to overcome the drawbacks of exchangers known in the art, by providing a considerable increase in the fatigue resistance and durability of the heat exchanger, without increasing its cost of production.
L ' échangeur de chaleur pour gaz, en particulier pour les gaz d'échappement d'un moteur, objet de la présente invention, est du type qui comprend une pluralité de conduits parallèles disposés à l'intérieur d'un carter, par lesquels circulent les gaz à refroidir par échange thermique avec un fluide de réfrigération, et est caractérisé par le fait que le carter comprend une série de protubérances estampées sur sa surface et dirigées vers l'intérieur de celui-ci, de telle sorte que lesdites protubérances soient disposées à une distance prédéterminée par rapport à l'ensemble de conduits, garantissant ainsi une expansion contrôlée des conduits avant une augmentation de pression.The gas heat exchanger, in particular for the exhaust gases of an engine, object of the present invention, is of the type which comprises a plurality of parallel ducts arranged inside a housing, through which circulate the gases to be cooled by heat exchange with a refrigerating fluid, and is characterized in that the casing comprises a series of protuberances stamped on its surface and directed towards the inside thereof, so that said protuberances are arranged at a predetermined distance from the duct assembly, thereby ensuring a controlled expansion of the ducts prior to an increase in pressure.
II convient de souligner que les conduits de gaz tendent à gonfler durant le fonctionnement de 1 ' échangeur de chaleur, arrivant à dépasser les 4 bars de pression interne.It should be emphasized that the gas ducts tend to swell during the operation of the heat exchanger, being able to exceed 4 bars of internal pressure.
Grâce au fait que les protubérances sont estampées sur le carter, au lieu d'appartenir aux conduits proprement dits comme cela était le cas dans l'état de l'art, il est possible de définir entre le carter et les conduits un espace prédéterminé qui permet de limiter efficacement la déformation desdits conduits due à la hausse de la pression. En conséquence, la résistance à la fatigue des conduits, ainsi que la durabilité de 1 ' échangeur s ' en trouveront accrues . En outre, cette amélioration n'implique pas d'augmentation du coût de fabrication étant donné que les protubérances sont produites dans le carter en même temps que, par exemple, les orifices des conduits d'admission et de sortie du circuit du réfrigérant.Due to the fact that the protuberances are stamped on the housing, instead of belonging to the conduits themselves as was the case in the state of the art, it is possible to define between the housing and the ducts a predetermined space that can effectively limit the deformation of said ducts due to the increase in pressure. As a result, the fatigue resistance of the conduits as well as the durability of the exchanger will be increased. In addition, this improvement does not imply an increase in the manufacturing cost since the protuberances are produced in the casing at the same time as, for example, the orifices of the inlet and outlet ducts of the refrigerant circuit.
La hauteur des protubérances sera celle requise pour maintenir la distance nécessaire entre les conduits et le carter.The height of the protuberances will be that required to maintain the necessary distance between the ducts and the housing.
La géométrie de ces protubérances peut aussi être différente en fonction des formes des conduits et des besoins, lesquels peuvent être circulaires, rectangulaires, linéaires, etc.The geometry of these protuberances may also be different depending on the shapes of the ducts and needs, which may be circular, rectangular, linear, etc.
Avantageusement, les protubérances incluent dans leur extrémité une surface plane destinée à entrer en contact avec un conduit. De préférence, ladite surface plane présente une forme carrée ou rectangulaire.Advantageously, the protuberances include in their end a flat surface intended to come into contact with a conduit. Preferably, said planar surface has a square or rectangular shape.
Avantageusement aussi, les protubérances sont disposées dans au moins un côté du carter formant une série de files parallèles séparées entre elles. Dans ce cas, les files de protubérances sont distantes les unes des autres par au moins 20 % de la longueur du carter. Par exemple, la distance entre les protubérances peut varier entre 20 et 40 mm.Advantageously also, the protuberances are arranged in at least one side of the casing forming a series of parallel queues separated from each other. In this case, the rows of protuberances are spaced from each other by at least 20% of the length of the housing. For example, the distance between the protuberances can vary between 20 and 40 mm.
Optionnellement, l ' échangeur inclut au moins deux files de protubérances, de préférence trois files de protubérances .Optionally, the exchanger includes at least two rows of protuberances, preferably three rows of protuberances.
Conformément à un mode de réalisation préféré, les protubérances sont disposées dans chaque face supérieure et inférieure du carter. De préférence, les deux faces supérieure et inférieure incluent chacune six protubérances. Avantageusement, le carter comprend une admission et une sortie du circuit réfrigérant, consistant chacune en un conduit circonférentiel qui s'étend linéairement. De préférence, les conduits d'admission et de sortie s ' étendent perpendiculairement .According to a preferred embodiment, the protuberances are disposed in each upper and lower face of the housing. Preferably, the two upper and lower faces each include six protuberances. Advantageously, the casing comprises an inlet and an outlet of the refrigerant circuit, each consisting of a circumferential duct which extends linearly. Preferably, the intake and outlet ducts extend perpendicularly.
BREVE DESCRIPTION DES DESSINSBRIEF DESCRIPTION OF THE DRAWINGS
Afin de faciliter la description de ce qui a été exposé ci-dessus, nous joignons des dessins dans lesquels, schématiquement et à titre d'exemple non limitatif uniquement, nous représentons au moins un .cas pratique de réalisation de 1 ' échangeur de chaleur pour gaz, en particulier pour les gaz d'échappement d'un moteur de l'invention, dans lesquels : la figure 1 est une vue en perspective d'un échangeurde chaleur, selon un mode de réalisation préféré de l'invention ; la figure 2 est une vue en perspective deIn order to facilitate the description of what has been explained above, we enclose drawings in which, schematically and by way of non-limiting example only, we represent at least one practical embodiment of the heat exchanger for gas, in particular for the exhaust gases of an engine of the invention, in which: Figure 1 is a perspective view of a heat exchanger, according to a preferred embodiment of the invention; FIG. 2 is a perspective view of
1 ' échangeur de chaleur de la figure 1, sans les réservoirs à gaz, et selon une coupe longitudinale du carter pour montrer l'ensemble de conduits parallèles logés à l'intérieur ; et la figure 3 est une vue selon une coupe transversale de 1 ' échangeur de la figure 1.1 heat exchanger of Figure 1, without the gas tanks, and in a longitudinal section of the housing to show the set of parallel conduits housed inside; and FIG. 3 is a cross-sectional view of the exchanger of FIG. 1.
DESCRIPTION D'UN MODE DE REALISATION PREFERE Relativement aux figures 1 à 3, 1 ' échangeur de chaleur 1 pour gaz, en particulier pour les gaz d'échappement d'un moteur, comprend un ensemble de conduits parallèles 2, lesquels dans le présent exemple sont plans et de coupe rectangulaire, destinés à la circulation des gaz avec un échange chaleur avec un fluide de réfrigération. Ledit ensemble de conduits parallèles 2 est logé à l'intérieur d'un carter 3 qui dans le cas présent est également de coupe rectangulaire .DESCRIPTION OF A PREFERRED EMBODIMENT With reference to FIGS. 1 to 3, the gas heat exchanger 1, in particular for the exhaust gases of an engine, comprises a set of parallel ducts 2, which in this example are rectangular planes, intended for the circulation of gases with a heat exchange with a refrigeration fluid. Said set of parallel ducts 2 is housed inside a casing 3 which in this case is also of rectangular section.
La figure 2 montre le carter 3 coupé longitudinalement pour montrer à l'intérieur de celui-ci l'ensemble de conduits parallèles 2. La figure 3 montre une coupe transversale de 1 ' échangeur de chaleur 1,Figure 2 shows the housing 3 cut longitudinally to show inside thereof the set of parallel ducts 2. FIG. 3 shows a cross-section of the heat exchanger 1,
Les deux extrémités de l'ensemble de conduits 2 sont chacune fixées aux plaques de support 4, lesquelles présentent une pluralité d'orifices 2a pour le positionnement des conduits 2 , Lesdites plaques de support 4 sont raccordées respectivement aux deux extrémités du carter 3.The two ends of the duct assembly 2 are each fixed to the support plates 4, which have a plurality of orifices 2a for the positioning of the ducts 2. Said support plates 4 are respectively connected to the two ends of the casing 3.
Le carter 3 inclut dans chacune des deux extrémités les réservoirs à gaz 5 raccordés à la conduite de recyclage des gaz. De même, le carter 3 inclut chacun des conduits d'admission 6 et de sortie 7 du circuit réfrigérant.The casing 3 includes in both ends the gas tanks 5 connected to the gas recirculation line. Similarly, the casing 3 includes each intake duct 6 and outlet 7 of the refrigerant circuit.
Il faut tenir compte du fait que les conduits 2 de gaz tendent à gonfler durant le fonctionnement de 1 ' échangeur de chaleur 1, arrivant à dépasser les 4 bars de pression interne. Ceci implique une diminution de la résistance mécanique de l ' échangeur de chaleur 1.It must be taken into account that the gas pipes 2 tend to swell during the operation of the heat exchanger 1, which can exceed 4 bars of internal pressure. This implies a decrease in the mechanical strength of the heat exchanger 1.
Pour remédier à cet inconvénient, le carter 3 comprend une série de protubérances 8 dirigées vers l'intérieur de celui-ci de telle sorte que lesdites protubérances 8 se trouvent en contact direct avec 1 ' ensemble de conduits 2.To remedy this drawback, the casing 3 comprises a series of protuberances 8 directed towards the inside thereof so that said protuberances 8 are in direct contact with the set of ducts 2.
En raison du fait que le carter 3 peut être fabriqué en formant une virole par filage et brasage au moyen d'une machine spéciale, il est possible d'estamper une série de protubérances 8 sur le carter 3 dirigées vers l'intérieur de celui-ci dans des zones prédéterminées. Ces protubérances 8 peuvent être situées dans les quatre surfaces du carter 3 et à n'importe quelle position.Due to the fact that the housing 3 can be manufactured by forming a ferrule by spinning and soldering by means of a special machine, it is possible to punch a series of protuberances 8 on the housing 3 directed towards the inside of this housing. ci in predetermined areas. These protuberances 8 may be located in the four surfaces of the housing 3 and at any position.
Dans le mode de réalisation illustré aux figures 1 et 2, les protubérances 8 sont disposées dans les deux faces supérieure et inférieure du carter 3 , chaque couche supérieure et inférieure comportant six protubérances réparties en deux files parallèles de trois .In the embodiment illustrated in FIGS. 1 and 2, the protuberances 8 are arranged in both upper and lower faces of the housing 3, each upper and lower layer having six protuberances divided into two parallel rows of three.
Grâce auxdites protubérances 8, localisées à des positions adéquates, il est possible de maintenir une distance prédéterminée entre les conduits 2 et le carter 3 durant le fonctionnement de 1 ' échangeur de chaleur 1. La résistance à la fatigue et la durabilité de 1 ' échangeur de chaleur 1 s'en trouvent ainsi considérablement accrues .With said protuberances 8, located at appropriate positions, it is possible to maintain a predetermined distance between the ducts 2 and the casing 3 during the operation of the heat exchanger 1. The fatigue resistance and the durability of the exchanger heat 1 are thus considerably increased.
De plus, ladite amélioration n'implique pas d'augmentation du coût de fabrication étant donné que les protubérances 8 sont produites dans le carter 3 en même temps que, par exemple, les orifices des conduits d'admission 6 et de sortie 7 du circuit du réfrigérant.In addition, said improvement does not imply an increase in the manufacturing cost since the protuberances 8 are produced in the casing 3 at the same time as, for example, the orifices of the inlet ducts 6 and outlet 7 of the circuit refrigerant.
La hauteur des protubérances 8 sera celle requise pour maintenir la distance nécessaire entre les conduits 2 et le carter 3.The height of the protuberances 8 will be that required to maintain the necessary distance between the ducts 2 and the casing 3.
La géométrie de ces protubérances 8 peut aussi être différente, en fonction des formes des conduits 2 et des besoins, lesquels peuvent être circulaires, rectangulaires, linéaires, etc. The geometry of these protuberances 8 may also be different, depending on the shapes of the ducts 2 and needs, which may be circular, rectangular, linear, etc.

Claims

REVENDICATIONS
1. Echangeur de chaleur (1) pour gaz, en particulier pour les gaz d'échappement d'un moteur, qui comprend une pluralité de conduits parallèles (2) disposés à l'intérieur d'un carter (3), par lesquels circulent les gaz à refroidir par échange thermique avec un fluide de réfrigération, caractérisé par le fait que le carter (3) comprend une série de protubérances {8) estampées sur sa surface et dirigées vers l'intérieur de celui-ci, de telle sorte que lesdites protubérances (8) soient disposées à une distance prédéterminée par rapport à 1 ' ensemble de conduits (2) , garantissant ainsi une expansion contrôlée des conduits (2) avant une augmentation de pression .A heat exchanger (1) for gases, in particular for the exhaust gases of an engine, which comprises a plurality of parallel ducts (2) arranged inside a housing (3), through which circulate the gases to be cooled by heat exchange with a refrigerating fluid, characterized in that the casing (3) comprises a series of protuberances (8) stamped on its surface and directed towards the inside thereof, so that said protuberances (8) are arranged at a predetermined distance from the set of conduits (2), thus ensuring a controlled expansion of the conduits (2) before a pressure increase.
2. Echangeur de chaleur (1) , selon la revendication 1, caractérisé par le fait que les protubérances (8) incluent dans leur extrémité une surface plane destinée à entrer en contact avec un conduit {2) .2. Heat exchanger (1) according to claim 1, characterized in that the protuberances (8) include in their end a flat surface intended to come into contact with a conduit (2).
3. Echangeur de chaleur (1) , selon la revendication 2, caractérisé par1 le fait que ladite surface plane présente une forme carrée ou rectangulaire .3. Heat exchanger (1) according to claim 2, characterized by 1 that said flat surface has a square or rectangular shape.
4. Echangeur de chaleur (1), selon l'une des revendications précédentes, caractérisé par le fait que les protubérances (8) sont disposées dans.au moins un côté du carter (3} formant une série de files parallèles séparées entre elles,4. Heat exchanger (1) according to one of the preceding claims, characterized in that the protuberances (8) are arranged in . at least one side of the housing (3) forming a series of parallel lines separated from one another,
5. Echangeur de chaleur (1), selon la revendication 4, caractérisé par le fait qu'il inclut au moins deux files de protubérances (8) , de préférence trois files de protubérances (8) . 5. heat exchanger (1) according to claim 4, characterized in that it includes at least two rows of protuberances (8), preferably three rows of protuberances (8).
6. Echangeur de chaleur (1), selon l'une des revendications 4 ou 5, caractérisé par le fait que les protubérances (8) sont disposées dans chaque face supérieure et inférieure du carter (3).6. heat exchanger (1) according to one of claims 4 or 5, characterized in that the protuberances (8) are disposed in each upper and lower face of the housing (3).
7. Echangeur de chaleur (1), selon la revendication 6, caractérisé par le fait que les deux faces supérieure et inférieure incluent chacune six protubérances (8).7. heat exchanger (1) according to claim 6, characterized in that the two upper and lower faces each include six protuberances (8).
8. Echangeur de chaleur (1), selon l'une des revendications précédentes, caractérisé par le fait que le carter (3) comprend une admission (6) et une sortie (7) du circuit réfrigérant, consistant chacune en un conduit circonférentiel qui s'étend linéairement.8. Heat exchanger (1) according to one of the preceding claims, characterized in that the housing (3) comprises an inlet (6) and an outlet (7) of the refrigerant circuit, each consisting of a circumferential duct which extends linearly.
9. Echangeur de chaleur (1), selon la revendication 8, caractérisé par le fait que les conduits d'admission (6) et de sortie (7) s'étendent perpendiculairement. 9. Heat exchanger (1) according to claim 8, characterized in that the intake ducts (6) and outlet (7) extend perpendicularly.
PCT/EP2008/059752 2007-07-27 2008-07-24 Heat exchanger for gas, particularly for the exhaust gases of an engine WO2009016102A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP08786413.8A EP2171386B1 (en) 2007-07-27 2008-07-24 Heat exchanger for gas, particularly for the exhaust gases of an engine
ES08786413.8T ES2554166T3 (en) 2007-07-27 2008-07-24 Heat exchanger for gases, in particular for the exhaust gases of an engine
PL08786413T PL2171386T3 (en) 2007-07-27 2008-07-24 Heat exchanger for gas, particularly for the exhaust gases of an engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200702103A ES2331218B1 (en) 2007-07-27 2007-07-27 HEAT EXCHANGER FOR GASES, ESPECIALLY OF EXHAUST GASES OF AN ENGINE.
ESP200702103 2007-07-27

Publications (1)

Publication Number Publication Date
WO2009016102A1 true WO2009016102A1 (en) 2009-02-05

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EP (1) EP2171386B1 (en)
KR (1) KR101576691B1 (en)
ES (2) ES2331218B1 (en)
PL (1) PL2171386T3 (en)
WO (1) WO2009016102A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2239530A1 (en) * 2009-04-09 2010-10-13 Maruyasu Industries Co., Ltd. Multitubular heat exchanger
WO2011072912A3 (en) * 2009-12-18 2012-02-23 Robert Bosch Gmbh Heat exchanger
USD840958S1 (en) 2016-11-15 2019-02-19 Borgwamer Emissions Systems Spain, S.L.U. Shaped tube with a pattern
CN109555595A (en) * 2017-07-26 2019-04-02 广州汽车集团股份有限公司 Water-cooled charger-air cooler

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2406184B1 (en) * 2011-12-01 2014-04-29 Valeo Térmico, S. A. HEAT EXCHANGER FOR GASES, ESPECIALLY OF EXHAUST GASES OF AN ENGINE

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030010479A1 (en) * 2001-07-10 2003-01-16 Takayuki Hayashi Exhaust gas heat exchanger
JP2005321122A (en) * 2004-05-06 2005-11-17 Sanoh Industrial Co Ltd Tubular type heat exchanger
JP2006300407A (en) * 2005-04-20 2006-11-02 T Rad Co Ltd Shell and tube type heat exchanger

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1579275A (en) 1976-08-23 1980-11-19 Borg Warner Heat exchanger for cooling exhaust gas
DE3424905C2 (en) * 1984-06-16 1994-08-11 Wilhelm Heuel Stand console for radiators
DE3815070C2 (en) 1988-05-04 1996-10-17 Laengerer & Reich Kuehler Coolers, especially liquid coolers
US5213155A (en) * 1992-04-23 1993-05-25 The Atlantic Group, Inc. Method and apparatus for multiple locking a single row of heat exchanger tubes
DE19654368B4 (en) 1996-12-24 2006-01-05 Behr Gmbh & Co. Kg Heat exchanger, in particular exhaust gas heat exchanger
JP4130512B2 (en) 1998-04-24 2008-08-06 ベール ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー Heat exchanger
JP4170527B2 (en) 1999-07-15 2008-10-22 カルソニックカンセイ株式会社 EGR gas cooling device
JP4173938B2 (en) 1999-07-15 2008-10-29 カルソニックカンセイ株式会社 EGR gas cooling device
US6889751B1 (en) 2000-10-04 2005-05-10 Modine Manufacturing Company Latent heat storage device
JP3956097B2 (en) * 2002-01-07 2007-08-08 株式会社デンソー Exhaust heat exchanger
DE10233407B4 (en) 2001-07-26 2016-02-18 Denso Corporation Exhaust gas heat exchanger
JP3879614B2 (en) 2002-07-25 2007-02-14 株式会社デンソー Heat exchanger
JP4164799B2 (en) 2002-11-28 2008-10-15 株式会社ティラド EGR cooler
DE10302708A1 (en) 2003-01-23 2004-07-29 Behr Gmbh & Co. Kg Device for exchanging heat used especially for cooling combustion air in IC engines of vehicles has flow units arranged in a two-part profiled housing
JP4431579B2 (en) * 2004-09-28 2010-03-17 株式会社ティラド EGR cooler
JP2006105464A (en) 2004-10-04 2006-04-20 Toyota Motor Corp Heat exchanger and heat exchanger system
ES2285337T5 (en) 2004-11-10 2010-10-04 Modine Manufacturing Company HEAT EXCHANGER WITH OPEN PROFILE AS ACCOMMODATION.
JP2006145062A (en) * 2004-11-16 2006-06-08 Aisin Seiki Co Ltd Exhaust heat exchanger
JP2007051576A (en) 2005-08-17 2007-03-01 Tokyo Roki Co Ltd Egr cooler
DE102006051000A1 (en) 2005-10-26 2007-07-12 Behr Gmbh & Co. Kg Exhaust gas heat exchanger for internal combustion engine of motor vehicle, has sealing unit provided in sectional contact with one of mediums, and turbulence generator provided within housing, where medium is passed within generator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030010479A1 (en) * 2001-07-10 2003-01-16 Takayuki Hayashi Exhaust gas heat exchanger
JP2005321122A (en) * 2004-05-06 2005-11-17 Sanoh Industrial Co Ltd Tubular type heat exchanger
JP2006300407A (en) * 2005-04-20 2006-11-02 T Rad Co Ltd Shell and tube type heat exchanger

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2239530A1 (en) * 2009-04-09 2010-10-13 Maruyasu Industries Co., Ltd. Multitubular heat exchanger
WO2011072912A3 (en) * 2009-12-18 2012-02-23 Robert Bosch Gmbh Heat exchanger
USD840958S1 (en) 2016-11-15 2019-02-19 Borgwamer Emissions Systems Spain, S.L.U. Shaped tube with a pattern
CN109555595A (en) * 2017-07-26 2019-04-02 广州汽车集团股份有限公司 Water-cooled charger-air cooler
CN109555595B (en) * 2017-07-26 2024-05-14 广州汽车集团股份有限公司 Water-cooled charge air cooler

Also Published As

Publication number Publication date
KR20100040303A (en) 2010-04-19
EP2171386A1 (en) 2010-04-07
ES2331218A1 (en) 2009-12-23
ES2331218B1 (en) 2010-09-29
ES2554166T3 (en) 2015-12-16
EP2171386B1 (en) 2015-09-02
KR101576691B1 (en) 2015-12-10
PL2171386T3 (en) 2016-06-30

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