EP2810009B1 - Cooling radiator for a vehicle, particularly a motor vehicle - Google Patents
Cooling radiator for a vehicle, particularly a motor vehicle Download PDFInfo
- Publication number
- EP2810009B1 EP2810009B1 EP13705741.0A EP13705741A EP2810009B1 EP 2810009 B1 EP2810009 B1 EP 2810009B1 EP 13705741 A EP13705741 A EP 13705741A EP 2810009 B1 EP2810009 B1 EP 2810009B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tubes
- corrugations
- tube
- fluid
- radiator
- 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.)
- Revoked
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
- F28D1/05358—Assemblies of conduits connected side by side or with individual headers, e.g. section type radiators
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- 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
- F28D1/03—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 plate-like or laminated conduits
- F28D1/0391—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 plate-like or laminated conduits a single plate being bent to form one or more conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/06—Tubular elements of cross-section which is non-circular crimped or corrugated in cross-section
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
- F28D2021/0091—Radiators
- F28D2021/0094—Radiators for recooling the engine coolant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F2001/027—Tubular elements of cross-section which is non-circular with dimples
Definitions
- the invention relates to a cooling radiator for a vehicle, in particular an automobile. It may in particular be radiators for cooling the engine of the vehicle.
- An exchanger according to the preamble of claim 1 is known from US 2012/0024510 .
- Cooling radiators are known comprising a bundle of parallel tubes and two collectors (or manifolds) in which the corresponding ends of the tubes are connected in a fixed and sealed manner. A cooling fluid can thus flow through the tubes and exchange heat with an external air flow passing between the tubes. For this, the radiators are placed on the front of the vehicle and the air flow reaches the radiator passing through the calender.
- the invention proposes for this purpose a cooling radiator for a vehicle, in particular an automobile, according to claim 1.
- flat tube is meant a tube comprising two large parallel flat faces connected by lateral sides or radii, the total height of the tube, that is to say, its dimension in the direction perpendicular to the large flat faces, being less than the total width of the tube, that is to say its dimension in the direction perpendicular to the total height of the tube and the longitudinal axis of the tube.
- a particularly advantageous embodiment of the invention is based on the link made by the applicant between the operating characteristics of the pumps used in the cooling loops and the characteristics of the radiator for optimizing their operation.
- the figure 1 illustrates the overall efficiency "e” of a pump according to the flow "D" of fluid it generates. It is observed that the efficiency begins to grow until a certain flow rate before decreasing. In other words, there is a flow rate value for which the efficiency of the pump is maximum, here about 4000 liters per hour.
- the figure 2 illustrates the "P" pressure of the fluid leaving the pump as a function of the flow "D" that it generates. It is observed that the pressure decreases with the flow rate.
- the pressure drop due to the other circuit components such as the engine or the circulation channels between the engine and the cooling radiator being known or specified, it is possible to evaluate a corresponding pressure drop for the radiator.
- a parameter influencing in particular the pressure drop generated by a radiator as defined above is the profile of the tube and even more specifically the internal height h T of the tube.
- Internal height means the distance between the inner walls of the flat faces of the tube or the height of the fluid circulation blade in the tube, such a distance being measured at a portion of the walls not exhibiting corrugations.
- the curves 3 and 4 illustrate in this way the relationship between this parameter and, respectively, the outlet pressure of the pump and the overall efficiency of the latter.
- the invention thus proposes a radiator in which the tubes have an internal height of between 0.6 and 1.5 mm, more particularly between 0.8 and 1.2 mm.
- the pump operates optimally in this value range.
- the invention relates to a cooling radiator 1 for a vehicle, in particular an automobile, comprising a beam for exchanging heat between a first and a second fluid.
- the first fluid consists, for example, of a cooling fluid such as a mixture of water and glycol.
- the second fluid consists, for example, of air.
- Said radiator may be configured to be placed on the front face of a motor vehicle so as to be swept by a flow of ambient air passing through a radiator grille of the vehicle.
- Said beam comprises a row of tubes 2, parallel to each other, for the flow of the first fluid.
- Said tubes 2 extend in a longitudinal direction marked A in the figure.
- Each tube 2 here has two longitudinal ends 2A fixedly and sealingly connected to manifolds 3, 4 of the radiator for the circulation of said first fluid through said radiator.
- Said manifolds 3, 4 comprise, for example, a header plate and a lid defining an interior volume of the box.
- fastening flanges not shown. They may also comprise, respectively, inlet and outlet pipes 5 and 6.
- the collector plates of said collector boxes 3, 4 are, for example metal, including aluminum or aluminum alloys.
- the covers are, for example, plastic and crimped on the collector plates.
- the collector plates and lids are both metal, especially aluminum or aluminum alloys.
- interlayers 7 increasing the heat exchange surface between the fluid flowing in the tubes 2 and the air flowing between said tubes 2.
- the tubes 2 and the spacers 7 are here stacked alternatively in the direction B, perpendicular to the axis A in the plane of the figure.
- the radiator may also include lateral cheeks 8 protecting the beam on either side of the stack of tubes 2 and tabs 7.
- tubes 2 are flat.
- the tubes 2 comprise two large flat faces 10a, 10b, parallel, connected by lateral sides or radii 12.
- the height of the tubes that is to say that is, their dimension in the direction perpendicular to the planar faces 10a, 10b, which corresponds to the stacking direction B of the tubes 2 and the spacers 7, is smaller than the width L T of said tubes 2, that is to say their dimension in the direction perpendicular to the direction B and the longitudinal axis A of the tubes 2, the latter being orthogonal to the plane of the figure.
- the tubes 2 are, for example, of the type comprising a strip 14, folded on itself so as to define a plurality of channels 16a, 16b for circulating the fluid.
- Said tubes 2 may in particular have a configuration in which said strip 14 has legs 18a, 18b joining a first 10a to the second 10b of said flat faces of the tube so as to define said channels 16a, 16b.
- said strip 14 has legs 18a, 18b joining a first 10a to the second 10b of said flat faces of the tube so as to define said channels 16a, 16b.
- said legs 18a, 18b have, for example, a base formed of a bent portion 20 of the strip 14 connecting them to the first planar face 10a. They are extended here against each other to finish against the second flat face 10b, especially via their edge. Here they define two channels 16a, 16b of substantially equal section. In other words, said legs 18a, 18b are located along a median plane of the tubes 2. The latter substantially have a substantially B-shaped profile in this way.
- Such tubes 2 are sealed, for example, by soldering, the brazing of the tubes 2 of the same exchanger taking place, in particular, simultaneously with the brazing of all the metal parts of the exchanger.
- said sheet of material 14 is, for example, aluminum or aluminum alloy.
- said tubes 2 are provided with corrugations 22 configured to disrupt the flow of said first fluid.
- Corrugations 22 means shapes having a protruding profile towards the channel or channels 16a, 16b defined by said tubes 2. At the figure 6 , some of said corrugations 22 are in the cutting plane while others are located behind.
- the corrugations 22 may be derived from material of a wall of the tube, that is to say, here the strip 14. They are formed, for example, by stamping said strip 14. They are located, in particular, at the planar faces 10a, 10b of the tubes. Said corrugations 22 have, for example, a free end (26). By this is meant that they are not in contact with the opposite planar face 10a, 10b or with any other of said corrugations 22.
- said tubes 2 are furthermore spaced apart in the direction B by a pitch Tp (visible at figure 5 ), said no tubes, between 5 and 8 mm. Said tube pitch is between 6 and 7 mm.
- tubes 2 having an internal height h T of between 0.6 and 1.5 mm, more particularly between 0.8 and 1.2 mm.
- internal height is meant as already said the distance between the inner walls 24a, 24b of the flat faces 10a, 10b of the tubes 2 or the blade height of circulation of the first fluid in said tubes 2, such a distance being measured at the part of the walls showing no corrugations 22.
- Said tubes 2 may have a material thickness e T less than 270 ⁇ m, more particularly 230 ⁇ m, more particularly 200 ⁇ m.
- corrugations 22 may have on the surface of the tube 2 any possible distributions or shapes. They may thus, for example, be arranged in rows or staggered on the same flat face 10a, 10b and / or a flat face 10a, 10b to another. They may also be circular or elongated sections, forming or not at the same angle or different angles relative to the longitudinal axis A of the tubes.
Description
L'invention concerne un radiateur de refroidissement pour véhicule, notamment automobile. Il pourra en particulier s'agir de radiateurs de refroidissement du moteur du véhicule. Un échangeur selon le préambule de la revendication 1 est connu du
De nombreuses solutions ont déjà été proposées pour augmenter la performance thermique de tels échangeurs. Il est en particulier connu de munir leurs tubes de corrugations permettant de perturber l'écoulement du fluide. En effet, disposer d'un écoulement turbulent améliore l'échange de chaleur.Many solutions have already been proposed to increase the thermal performance of such exchangers. It is in particular known to provide their corrugation tubes to disrupt the flow of the fluid. Indeed, having a turbulent flow improves the heat exchange.
Cependant, une telle solution augmente les pertes de charges générées par l'échangeur. Elle conduit de la sorte à un surdimensionnement des pompes à utiliser pour assurer la circulation du fluide dans le circuit de refroidissement du moteur.However, such a solution increases the pressure losses generated by the exchanger. It leads in this way to oversize pumps to be used to ensure the flow of fluid in the engine cooling circuit.
Parallèlement, il a déjà été proposé des échangeurs de chaleur présentant des pas de tubes, c'est-à-dire un espacement entre les tubes, relativement réduit. Il est à noter qu'une telle caractéristique présente également l'inconvénient de générer des pertes de charge, cette fois sur l'air.At the same time, it has already been proposed heat exchangers having tube pitches, that is to say a spacing between the tubes, relatively reduced. It should be noted that such a characteristic also has the disadvantage of generating pressure drops, this time on the air.
Il existe ainsi un besoin d'un radiateur de refroidissement présentant des performances thermiques améliorées tout en maîtrisant les pertes de charges générées, sur le ou les fluides échangeant de la chaleur à travers le radiateur.There is thus a need for a cooling radiator having improved thermal performance while controlling the pressure losses generated on the fluid or fluids exchanging heat through the radiator.
L'invention propose à cet effet un radiateur de refroidissement pour véhicule, notamment automobile, selon la revendication 1. Par « tube plat », on comprend un tube comprenant deux grandes faces planes parallèles reliées par des côté latéraux ou rayons, la hauteur total du tube, c'est-à-dire, sa dimension selon la direction perpendiculaire aux grandes faces planes, étant inférieure à la largeur total du tube, c'est-à-dire sa dimension dans la direction perpendiculaire à la hauteur totale du tube et à l'axe longitudinal du tube.The invention proposes for this purpose a cooling radiator for a vehicle, in particular an automobile, according to
Un mode de réalisation de l'invention particulièrement avantageux repose sur le lien fait par le déposant entre les caractéristiques de fonctionnement des pompes employées dans les boucles de refroidissement et des caractéristiques du radiateur permettant d'en optimiser le fonctionnement.A particularly advantageous embodiment of the invention is based on the link made by the applicant between the operating characteristics of the pumps used in the cooling loops and the characteristics of the radiator for optimizing their operation.
La
La
Dans une optique d'optimisation du rendement énergétique global du véhicule, il est avantageux de faire fonctionner la pompe dans sa zone d'efficacité maximale. En reportant cette valeur sur la courbe de la
La perte de charge due aux autres composants du circuit tels que le moteur ou les canaux de circulation entre le moteur et le radiateur de refroidissement étant connue ou spécifiée, on peut évaluer une perte de charge correspondante pour le radiateur.The pressure drop due to the other circuit components such as the engine or the circulation channels between the engine and the cooling radiator being known or specified, it is possible to evaluate a corresponding pressure drop for the radiator.
Cela étant, il a été mis en évidence par le déposant qu'un paramètre influant en particulier sur la perte de charge générée par un radiateur tel que défini plus haut est le profil du tube et encore plus spécifiquement la hauteur interne hT du tube. Par « hauteur interne », on entend la distance entre les parois internes des faces planes du tube ou encore la hauteur de lame de circulation du fluide dans le tube, une telle distance étant mesurée au niveau d'une partie des parois ne présentant pas de corrugations.That being so, it has been demonstrated by the applicant that a parameter influencing in particular the pressure drop generated by a radiator as defined above is the profile of the tube and even more specifically the internal height h T of the tube. "Internal height" means the distance between the inner walls of the flat faces of the tube or the height of the fluid circulation blade in the tube, such a distance being measured at a portion of the walls not exhibiting corrugations.
Les courbes 3 et 4 illustrent de la sorte les relations entre ce paramètre et, respectivement la pression en sortie de la pompe et l'efficacité globale de cette dernière.The
L'invention propose ainsi un radiateur dans lequel les tubes présentent une hauteur interne comprise entre 0,6 et 1,5 mm, plus particulièrement entre 0,8 à 1,2 mm. On constate en effet à la
Selon d'autres caractéristiques de l'invention, qui pourront être prise ensemble ou séparément :
- une épaisseur de matière des tubes est inférieure ou égale à 270 µm, particulièrement 230 µm, encore plus particulièrement 200 µm,
- les corrugations sont configurées de façon à représenter moins de 10% du volume interne des tubes,
- les tubes présentent une largeur comprise entre 10 et 45 mm,
- les tubes présentent :
- soit une largeur inférieure à 24 mm et une hauteur interne supérieure ou égale à 1 mm,
- soit une largeur supérieure à 24 mm et une hauteur interne inférieure à 1 mm,
- les corrugations sont issues de matière d'une paroi des tubes,
- les corrugations présentent une extrémité libre,
- lesdits tubes sont formés par pliage d'une feuille de matière.
- a material thickness of the tubes is less than or equal to 270 μm, particularly 230 μm, more particularly 200 μm,
- the corrugations are configured to represent less than 10% of the internal volume of the tubes,
- the tubes have a width of between 10 and 45 mm,
- the tubes present:
- a width less than 24 mm and an internal height greater than or equal to 1 mm,
- a width greater than 24 mm and an internal height of less than 1 mm,
- the corrugations come from material of a wall of the tubes,
- the corrugations have a free end,
- said tubes are formed by folding a sheet of material.
Les figures annexées feront bien comprendre comment l'invention peut être réalisée. Sur ces figures, des références identiques désignent des éléments semblables.
- La
figure 1 déjà évoquée illustre l'efficacité globale d'une pompe en fonction du débit de fluide générée par celle-ci. - La
figure 2 déjà évoquée illustre la pression du fluide en sortie de la pompe de lafigure 1 en fonction du débit de fluide générée par celle-ci. - La
figure 3 déjà évoquée reprend lafigure 2 en l'associant à la hauteur interne d'un tube d'un radiateur de refroidissement. - La
figure 4 déjà évoquée reprend lafigure 1 en l'associant à la même caractéristique que celle utilisée dans lafigure 3 . - La
figure 5 est une vue d'ensemble d'un radiateur de refroidissement conforme à l'invention. - La
figure 6 est une vue de coupe transversale d'un tube de l'échangeur de lafigure 5 .
- The
figure 1 already mentioned illustrates the overall efficiency of a pump as a function of the flow of fluid generated by it. - The
figure 2 already mentioned illustrates the pressure of the fluid at the outlet of the pump of thefigure 1 depending on the fluid flow generated by it. - The
figure 3 already mentioned takes over thefigure 2 by associating it with the internal height of a tube of a cooling radiator. - The
figure 4 already mentioned takes over thefigure 1 by associating it with the same characteristic used in thefigure 3 . - The
figure 5 is an overview of a cooling radiator according to the invention. - The
figure 6 is a cross-sectional view of a tube of the exchanger of thefigure 5 .
Comme illustré à la
Ledit radiateur pourra être configuré pour être placé en face avant d'un véhicule automobile de façon à être balayé par un flux d'air ambiant traversant une calandre du véhicule.Said radiator may be configured to be placed on the front face of a motor vehicle so as to be swept by a flow of ambient air passing through a radiator grille of the vehicle.
Ledit faisceau comprend un rang de tubes 2, parallèles entre eux, pour l'écoulement du premier fluide. Lesdits tubes 2 s'étendent selon une direction longitudinale repérée A sur la figure. Chaque tube 2 possède ici deux extrémités longitudinales 2A reliées, de manière fixe et étanche, à des boîtes collectrices 3, 4 du radiateur pour la circulation dudit premier fluide à travers ledit radiateur.Said beam comprises a row of
Lesdites boîtes collectrices 3, 4 comprennent, par exemple, une plaque collectrice et un couvercle définissant un volume intérieur de la boîte. Les tubes 2, notamment les extrémités longitudinales 2A des tubes 2, débouchent dans ledit volume intérieur à travers des orifices prévus dans les plaques collectrices. A ces boîtes collectrices 3, 4 pourront être rapportées des brides d'accrochage, non-représentées. Elles pourront encore comprendre, respectivement, des tubulures d'entrée 5 et de sortie 6.Said
Les plaques collectrices desdites boîtes collectrices 3, 4 sont, par exemple en métal, notamment en aluminium ou alliages d'aluminium. Les couvercles sont, par exemple, en plastique et sertis sur les plaques collectrices. En variante, les plaques collectrices et les couvercles sont tous les deux en métal, notamment en aluminium ou alliages d'aluminium.The collector plates of said
Entre les tubes 2 pourront être agencés des intercalaires 7 augmentant la surface d'échange thermique entre le fluide circulant dans les tubes 2 et l'air circulant entre lesdits tubes 2. Les tubes 2 et les intercalaires 7 sont ici empilés alternativement selon la direction B, perpendiculaire à l'axe A dans le plan de la figure.Between the
Le radiateur pourra encore comprendre des joues latérales 8 protégeant le faisceau de part et d'autre de l'empilement des tubes 2 et des intercalaires 7.The radiator may also include
Comme illustré à la
Les tubes 2 sont, par exemple, du type comprenant un feuillard 14, plié sur lui-même de façon à définir plusieurs canaux 16a, 16b de circulation du fluide.The
Lesdits tubes 2 pourront en particulier présenter une configuration dans laquelle ledit feuillard 14 présente des jambes 18a, 18b joignant une première 10a à la seconde 10b desdites faces planes du tube de façon à définir lesdits canaux 16a, 16b. On entend par là que les extrémités libres desdites jambes 18a, 18b sont au contact de ladite seconde face plane 10b.
Comme cela est plus facilement visible à la
De tels tubes 2 sont rendus étanches, par exemple, par brasage, le brasage des tubes 2 d'un même échangeur ayant lieu, notamment, de façon simultanée au brasage de l'ensemble des parties métalliques de l'échangeur. A ce sujet, ladite feuille de matière 14 est, par exemple, en aluminium ou alliage d'aluminium.
Cela étant, selon l'invention, lesdits tubes 2 sont munis de corrugations 22 configurées pour perturber l'écoulement dudit premier fluide. Par corrugations 22, on entend des formes présentant un profil saillant en direction du ou des canaux 16a, 16b définis par lesdits tubes 2. A la
Les corrugations 22 pourront être issues de matière d'une paroi du tube, c'est-à-dire, ici, du feuillard 14. Elles sont formées, par exemple, par emboutissage dudit feuillard 14. Elles sont situées, notamment, au niveau des faces planes 10a, 10b des tubes. Lesdites corrugations 22 présentent, par exemple, une extrémité libre (26). On entend par là qu'elles ne sont en contact ni avec la face plane 10a, 10b opposée, ni avec une autre desdites corrugations 22.The corrugations 22 may be derived from material of a wall of the tube, that is to say, here the
Pour chaque tube, lesdites corrugations 22 sont configurées, par exemple, de façon à représenter 10 à 50% de la section du tube. Autrement dit, soit:
- Sfd la section frontale des corrugations, c'est-à-dire, la surface de la partie de la section du ou des canaux de
16a, 16b du tube obstruée par les corrugations 22,circulation - Stl la section interne du tube lisse (Stl), c'est-à-dire, la section qu'aurait le tube sans ses corrugations 22,
- Sfd the frontal section of the corrugations, that is to say, the surface of the part of the section of the circulation channel (s) 16a, 16b of the tube obstructed by the corrugations 22,
- Stl the internal section of the smooth tube (Stl), that is to say, the section that would have the tube without its corrugations 22,
Pour chaque tube, lesdites corrugations 22 pourront encore être configurées de façon à représenter moins de 10% du volume interne du tube. Autrement dit, soit :
- Vtd, le volume total des corrugations 22 à l'intérieur du tube,
- Vtl, le volume interne total du tube,
- Vtd, the total volume of corrugations 22 inside the tube,
- Vtl, the total internal volume of the tube,
Toujours selon l'invention, lesdits tubes 2 sont en outre espacés entre eux selon la direction B d'un pas Tp (visible à la
En utilisant des tubes 2 munis de telles corrugations 22 et présentant un tel pas de tubes, on optimise déjà les performances du radiateur.By using
Pour améliorer encore ce résultat, on pourra en outre choisir des tubes 2 présentant une hauteur interne hT comprise entre 0,6 et 1,5 mm, plus particulièrement entre 0,8 et 1,2 mm.To further improve this result, it will further be possible to choose
Par hauteur interne, on entend comme déjà dit la distance entre les parois internes 24a, 24b des faces planes 10a, 10b des tubes 2 ou encore la hauteur de lame de circulation du premier fluide dans lesdites tubes 2, une telle distance étant mesurée au niveau d'une partie des parois ne présentant pas de corrugations 22.By internal height is meant as already said the distance between the
Lesdits tubes 2 pourront présenter une épaisseur de matière eT inférieure à 270 µm, plus particulièrement 230 µm, encore plus particulièrement 200 µm.
Différentes largeurs de faisceau pourront être employées. Les tubes 2 présentent ainsi, par exemple, une largeur LT comprise entre 10 et 40 mm, notamment entre 14 et 34 mm. Plus particulièrement, les tubes 2 pourront présenter:
- soit une largeur LT inférieure à 24 mm et une hauteur interne eT supérieure à 1 mm,
- soit une largeur LT supérieure à 24 mm et une hauteur interne eT inférieure à 1 mm.
- a width L T less than 24 mm and an internal height e T greater than 1 mm,
- a width L T greater than 24 mm and an internal height e T less than 1 mm.
Il est à noter que lesdites corrugations 22 pourront présenter à la surface du tube 2 toutes distributions ou formes possibles. Elles pourront ainsi, par exemple, être disposées en rang ou en quinconce sur la même face plane 10a, 10b et/ou d'une face plane 10a, 10b à l'autre. Elles pourront encore être circulaires ou de sections allongées, formant ou non un même angle ou des angles différents par rapport à l'axe longitudinal A des tubes.It should be noted that said corrugations 22 may have on the surface of the
Claims (9)
- Cooling radiator for a vehicle, in particular a motor vehicle, comprising a bundle allowing heat exchange between a first and a second fluid, the said bundle comprising at least one row of parallel tubes (2) for the flow of the first fluid, the said tubes (2) being provided flat and spaced from one another by a spacing Tp, termed tube spacing, in a first direction, the said tubes (2) being provided with corrugations (22) configured to disturb the flow of the said first fluid, and the said tube spacing being between 6 and 7 mm, characterized in that the corrugations (22) are configured so as to represent 20 to 40% of the cross section of the tubes (2).
- Radiator according to Claim 1, in which the tubes (2) have an internal height between 0.6 and 1.5 mm.
- Radiator according to either one of the preceding claims, in which the tubes (2) have a width LT of between 10 and 45 mm.
- Radiator according to any one of the preceding claims, in which the tubes have:- either a width LT which is less than 24 mm and an internal height hT which is greater than or equal to 1 mm,- or a width LT which is greater than 24 mm and an internal height hT which is less than 1 mm.
- Radiator according to any one of the preceding claims, in which the corrugations (22) are formed integrally from a wall of the tubes (2).
- Radiator according to any one of the preceding claims, in which the corrugations (22) have a free end (26).
- Radiator according to any one of the preceding claims, in which the said tubes (2) are formed by folding a sheet of material (14).
- Radiator according to any one of the preceding claims, in which a thickness of material eT of the tubes (2) is less than or equal to 270 µm.
- Radiator according to any one of the preceding claims, in which the corrugations (22) are configured so as to represent less than 10% of the internal volume of the tubes (2).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL13705741T PL2810009T3 (en) | 2012-02-03 | 2013-02-01 | Cooling radiator for a vehicle, particularly a motor vehicle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1251015A FR2986472B1 (en) | 2012-02-03 | 2012-02-03 | COOLING RADIATOR FOR A VEHICLE, IN PARTICULAR A MOTOR VEHICLE |
PCT/EP2013/052084 WO2013113900A1 (en) | 2012-02-03 | 2013-02-01 | Cooling radiator for a vehicle, particularly a motor vehicle |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2810009A1 EP2810009A1 (en) | 2014-12-10 |
EP2810009B1 true EP2810009B1 (en) | 2018-08-22 |
Family
ID=47748584
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13705741.0A Revoked EP2810009B1 (en) | 2012-02-03 | 2013-02-01 | Cooling radiator for a vehicle, particularly a motor vehicle |
Country Status (7)
Country | Link |
---|---|
US (1) | US9671169B2 (en) |
EP (1) | EP2810009B1 (en) |
JP (2) | JP2015505605A (en) |
CN (1) | CN104169669A (en) |
FR (1) | FR2986472B1 (en) |
PL (1) | PL2810009T3 (en) |
WO (1) | WO2013113900A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017179588A1 (en) * | 2016-04-11 | 2017-10-19 | カルソニックカンセイ株式会社 | Heat exchanger |
EP3645184A1 (en) * | 2017-07-31 | 2020-05-06 | Valeo Systemes Thermiques | Tube for a heat exchanger having disturbance device |
DE102017222742A1 (en) * | 2017-12-14 | 2019-06-19 | Hanon Systems | Pipe, in particular flat pipe for an exhaust gas cooler and exhaust gas cooler |
JP7181725B2 (en) * | 2018-08-09 | 2022-12-01 | マレリ株式会社 | heat exchange tubes and heat exchangers |
DE102019000723A1 (en) * | 2019-01-31 | 2020-08-06 | Hydac Cooling Gmbh | cooler |
DE102020202313A1 (en) * | 2020-02-24 | 2021-08-26 | Mahle International Gmbh | Heat exchanger |
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-
2012
- 2012-02-03 FR FR1251015A patent/FR2986472B1/en not_active Expired - Fee Related
-
2013
- 2013-02-01 CN CN201380012171.XA patent/CN104169669A/en active Pending
- 2013-02-01 WO PCT/EP2013/052084 patent/WO2013113900A1/en active Application Filing
- 2013-02-01 JP JP2014555231A patent/JP2015505605A/en active Pending
- 2013-02-01 PL PL13705741T patent/PL2810009T3/en unknown
- 2013-02-01 US US14/375,846 patent/US9671169B2/en active Active
- 2013-02-01 EP EP13705741.0A patent/EP2810009B1/en not_active Revoked
-
2018
- 2018-01-04 JP JP2018000299A patent/JP2018087684A/en active Pending
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EP0710811A2 (en) | 1994-11-04 | 1996-05-08 | Nippondenso Co., Ltd. | Corrugate fin type heat exchanger |
DE10127084A1 (en) | 2000-06-17 | 2002-03-28 | Behr Gmbh & Co | Heat exchanger for use in engine cooling system of motor vehicle, has rows of indentations formed on each flat face of each flat tube and used as vortex generators |
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Also Published As
Publication number | Publication date |
---|---|
EP2810009A1 (en) | 2014-12-10 |
JP2015505605A (en) | 2015-02-23 |
CN104169669A (en) | 2014-11-26 |
US20150041106A1 (en) | 2015-02-12 |
JP2018087684A (en) | 2018-06-07 |
WO2013113900A1 (en) | 2013-08-08 |
PL2810009T3 (en) | 2019-03-29 |
US9671169B2 (en) | 2017-06-06 |
FR2986472A1 (en) | 2013-08-09 |
FR2986472B1 (en) | 2014-08-29 |
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