EP0145509A1 - Brazed aluminium conduit for a heat exchanger - Google Patents

Brazed aluminium conduit for a heat exchanger Download PDF

Info

Publication number
EP0145509A1
EP0145509A1 EP84401704A EP84401704A EP0145509A1 EP 0145509 A1 EP0145509 A1 EP 0145509A1 EP 84401704 A EP84401704 A EP 84401704A EP 84401704 A EP84401704 A EP 84401704A EP 0145509 A1 EP0145509 A1 EP 0145509A1
Authority
EP
European Patent Office
Prior art keywords
strip
strips
tube according
tube
dissipator
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.)
Withdrawn
Application number
EP84401704A
Other languages
German (de)
French (fr)
Inventor
André Paquet
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.)
Chausson Usines SA
Original Assignee
Chausson Usines SA
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.)
Filing date
Publication date
Application filed by Chausson Usines SA filed Critical Chausson Usines SA
Publication of EP0145509A1 publication Critical patent/EP0145509A1/en
Withdrawn legal-status Critical Current

Links

Images

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
    • F28D1/03—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
    • F28D1/0358—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 the conduits being formed by bent plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements

Definitions

  • the present invention relates to tubes used in heat exchangers in which the circulation fluid can circulate under relatively high pressures, for example several tens of bars.
  • the tube of the invention thus finds a practical application in the production of condensers, oil cooler exchangers, exchangers for cooling the charge air of engines, etc.
  • extruded or extruded tubes are used, the production of which is relatively expensive.
  • extruded or spun tubes are most often of circular cross section, which requires subsequent shaping to allow contact on a substantial surface with secondary dissipators.
  • Tubes obtained by extrusion or spinning cannot easily be covered with a layer of solder plating and, therefore, when these tubes have to be assembled with secondary heatsinks, it becomes necessary to use heatsinks themselves coated with '' at least one layer of solder plating.
  • the present invention overcomes the drawbacks set out above by allowing very economical manufacture of tubes which can easily be soldered to heatsinks and even have internal disturbers.
  • the brazed aluminum tube for heat exchanger is characterized in that it comprises two bands each having at least one corrugation and two complementary bearing surfaces, one of which has a projecting segment folded back to form a clip enveloping the support part of the other strip, said two strips having faces plated with brazing alloy ensuring their mutual union as well as the connection with at least one secondary dissipator.
  • Fig. 1 is a schematic elevation of a heat exchanger using the tube of the invention.
  • Fig. 2 is a partial perspective of the constituent elements of a multi-channel tube of the invention.
  • Fig. 3 is a partial perspective, similar to FIG. 2, showing the tube finished and assembled with a heat sink element.
  • Fig. 4 is a front view of a multi-channel tube according to a variant.
  • Fig. 5 is a front view illustrating a modification of the construction of the constituent elements of the multi-channel tube.
  • Fig. 1 shows, schematically, a heat exchanger constituted by a refrigerant condenser which comprises a tube 1 shaped in the manner of a coil between the turns of which are arranged dissipators constituted by corrugated strips.
  • the tube 1 is for example connected, at one end, to the outlet of a compressor and, at the other end, to a reservoir of refrigerant 3.
  • the tube 1 and the dissipator 2 are made of aluminum or an aluminum alloy and are joined by brazing.
  • two strips 4 and 5 are shaped so that these delimit complementary undulations 6, 6a, 7, 7a, 8, 8a ... delimiting parallel channels.
  • the bearing surfaces 11 and 12 of the strip 4 are extended by projecting segments 13 and 14.
  • the bands 4 and 5 made of aluminum or aluminum alloy, are coated, on their two faces, with veneers 15, 16 respectively 15a, 16a, made of aluminum-silicon to form a solder.
  • a next manufacturing operation consists in folding the projecting segments 13 and 14 of the plate 4 onto the lateral edges of the strip 5 to constitute a stapling or crimping. At least one dissipating element 2 is also put in place to bear on the top of the corrugations of each strip, these corrugations having flats 17 intended to increase as much as possible the contact surface between the different channels which delimit each tube and the dissipator .
  • the heatsink 2 is made from an aluminum strip without this strip having to be coated with a cladding or any alloy.
  • the strips 4 and 5 as well as the dissipator 2 are subjected to the usual brazing operations in the technique, operations which have the effect of bringing the veneers 15, 15a and 16, 16a into fusion to join together the two strips 4 and 5, ensuring the tightness of the tube, both at the level of the flat parts 9, 9a, 10, 10a ... and at the level of the staples formed by the protruding segments 13 and 14.
  • the external cladding 15a ensures soldering with the heatsink 2.
  • fig. 3 represents a single dissipator 2, it is obviously possible to have a second similar dissipator, against the underside of the strip 4, to ensure soldering at the same time as that of the dissipator 2.
  • Fig. 4 illustrates a variant according to which one of the strips, preferably the strip 5, is pressed on its two faces while the strip 4 which comprises the protruding segments 13 and 14 intended to form the staples only has a plating 15 on its face external.
  • the drawing shows that in this case the thickness of the plating material is reduced to a single layer at the level of the different parts of the two strips to be brazed together. This arrangement reduces the risks of the solder flowing during its melting by allowing very high quality joints to be produced, while saving a layer of plating.
  • Fig. 4 shows that the tube can in the same way as that of FIG. 3 be brazed with two dissipators since a layer of solder plating is always present on the external faces of the tube.
  • Fig. 5 illustrates a development of the invention which makes it possible to ensure docking and maintenance under slight pressure of the additional bearing surfaces 9, 9a and 10, 10a.
  • the strips 4 and 5 are shaped, not only to present the corrugations 6, 6a, 7, 7a ..., but still to extend approximately along generators in an arc 18 and 19. Care is taken, however, that the bearing surfaces 11, 11a and 12, 12a are perfectly flat so that the clip can be correctly formed.
  • the tube may have a smaller number or, on the contrary, a greater number of channels. Disturbers not shown may be placed in the channels; these disturbers being made of aluminum, their brazing is ensured by the aluminum-silicon cladding coating the internal faces of the strips 4, 5.

Landscapes

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

Abstract

The conduit comprises two strips (4, 5) each having at least one corrugation (6, 6a) and two complementary bearing spans one of which has a projecting segment folded back to form a clasp surrounding the bearing span of the other strip, the said two strips having faces plated with brazing alloy (17) ensuring their mutual joining as well as the connection with at least one secondary dissipator. <IMAGE>

Description

La présente invention concerne les tubes utilisés dans des échangeurs de chaleur dans lesquels le fluide de circulation peut circuler sous des pressions relativement élevées par exemple de plusieurs dizaines de bars.The present invention relates to tubes used in heat exchangers in which the circulation fluid can circulate under relatively high pressures, for example several tens of bars.

Le tube de l'invention trouve ainsi une application pratique dans la réalisation de condenseurs, d'échangeurs refroidisseurs d'huile, d'échangeurs pour le refroidissement de l'air de suralimentation de moteurs, etc.The tube of the invention thus finds a practical application in the production of condensers, oil cooler exchangers, exchangers for cooling the charge air of engines, etc.

Dans les applications considérées, on utilise, le plus souvent, des tubes extrudés ou filés dont la réalisation est relativement onéreuse. Par ailleurs, les tubes extrudés ou filés sont le plus souvent de section circulaire, ce qui oblige à une mise en forme subséquente pour permettre un contact sur une surface appréciable avec des dissipateurs secondaires.In the applications considered, most often extruded or extruded tubes are used, the production of which is relatively expensive. Furthermore, the extruded or spun tubes are most often of circular cross section, which requires subsequent shaping to allow contact on a substantial surface with secondary dissipators.

Des tubes obtenus par extrusion ou filage ne peuvent pas facilement être recouverts d'une couche de placage de brasure et, par conséquent, lorsque ces tubes doivent être assemblés à des dissipateurs secondaires, il devient nécessaire d'utiliser des dissipateurs eux-mêmes revêtus d'au moins une couche de placage de brasure.Tubes obtained by extrusion or spinning cannot easily be covered with a layer of solder plating and, therefore, when these tubes have to be assembled with secondary heatsinks, it becomes necessary to use heatsinks themselves coated with '' at least one layer of solder plating.

Cette disposition présente plusieurs inconvénients. La mise en forme du dissipateur revêtu de couches de placage pour la brasure est difficile, l'alliage de brasure en aluminium-silicium ayant pour effet d'user rapidement les outils de formage. Par ailleurs, seule une petite quantité de l'alliage de brasage est pratiquement utilisée lors de la brasure des dissipateurs sur les tubes.This arrangement has several drawbacks. The shaping of the dissipator coated with plating layers for the solder is difficult, the aluminum-silicon brazing alloy having the effect of rapidly wearing out the forming tools. Furthermore, only a small amount of the brazing alloy is practically used when brazing the heatsinks on the tubes.

La présente invention remédie aux inconvénients exposés ci-dessus en permettant une fabrication de tubes très économique pouvant facilement être brasés à des dissipateurs et même comporter des perturbateurs internes.The present invention overcomes the drawbacks set out above by allowing very economical manufacture of tubes which can easily be soldered to heatsinks and even have internal disturbers.

Conformément à l'invention, le tube brasé en aluminium pour échangeur de chaleur est caractérisé en ce qu'il comporte deux bandes présentant chacune au moins une ondulation et deux portées d'appui complémentaires dont l'une présente un segment saillant replié pour former une agrafe enveloppant la partie d'appui de l'autre bande, lesdites deux bandes présentant des faces plaquées d'alliage de brasure assurant leur réunion mutuelle ainsi que la liaison avec au moins un dissipateur secondaire.According to the invention, the brazed aluminum tube for heat exchanger is characterized in that it comprises two bands each having at least one corrugation and two complementary bearing surfaces, one of which has a projecting segment folded back to form a clip enveloping the support part of the other strip, said two strips having faces plated with brazing alloy ensuring their mutual union as well as the connection with at least one secondary dissipator.

Diverses autres caractéristiques de l'invention ressortent d'ailleurs de la description détaillée qui suit.Various other characteristics of the invention will also emerge from the detailed description which follows.

Des formes d'exécution de l'invention sont représentées, à titre d'exemples non limitatifs, au dessin annexé.Embodiments of the invention are shown, by way of non-limiting examples, in the accompanying drawing.

La fig. 1 est une élévation schématique d'un échangeur de chaleur mettant en oeuvre le tube de l'invention.Fig. 1 is a schematic elevation of a heat exchanger using the tube of the invention.

La fig. 2 est une perspective partielle des éléments constitutifs d'un tube à plusieurs canaux de l'invention.Fig. 2 is a partial perspective of the constituent elements of a multi-channel tube of the invention.

La fig. 3 est une perspective partielle, analogue à la fig. 2, montrant le tube terminé et assemblé à un élément dissipateur de chaleur.Fig. 3 is a partial perspective, similar to FIG. 2, showing the tube finished and assembled with a heat sink element.

La fig. 4 est une vue frontale d'un tube à plusieurs canaux selon une variante.Fig. 4 is a front view of a multi-channel tube according to a variant.

La fig. 5 est une vue frontale illustrant une modification de la réalisation des éléments constitutifs du tube à plusieurs canaux.Fig. 5 is a front view illustrating a modification of the construction of the constituent elements of the multi-channel tube.

La fig. 1 montre, de façon schématique, un échangeur de chaleur constitué par un condenseur de fluide frigorigène qui comporte un tube 1 conformé à la manière d'un serpentin entre les spires duquel sont disposés des dissipateurs constitués par des bandes ondulées.Fig. 1 shows, schematically, a heat exchanger constituted by a refrigerant condenser which comprises a tube 1 shaped in the manner of a coil between the turns of which are arranged dissipators constituted by corrugated strips.

Le tube 1 est par exemple relié, à une extrémité, à la sortie d'un compresseur et, à l'autre extrémité, à un réservoir de liquide frigorigène 3.The tube 1 is for example connected, at one end, to the outlet of a compressor and, at the other end, to a reservoir of refrigerant 3.

De façon connue, le tube 1 et le dissipateur 2 sont fabriqués en aluminium ou en alliage d'aluminium et sont réunis par brasage.In known manner, the tube 1 and the dissipator 2 are made of aluminum or an aluminum alloy and are joined by brazing.

Pour constituer le tube 1 selon l'invention on met en forme deux bandes 4 et 5 pour que celles-ci délimitent des ondulations complémentaires 6, 6a, 7, 7a, 8, 8a ... délimitant des canaux parallèles.To form the tube 1 according to the invention, two strips 4 and 5 are shaped so that these delimit complementary undulations 6, 6a, 7, 7a, 8, 8a ... delimiting parallel channels.

Les ondulations ci-dessus sont séparées par des parties planes 9, 9a et 10, 10a et, de même, les bords latéraux des bandes 4 et 5 délimitent des portées d'appui complémentaires 11, 11a et 12, 12a.The above undulations are separated by planar parts 9, 9a and 10, 10a and, similarly, the lateral edges of the strips 4 and 5 delimit complementary bearing surfaces 11, 11a and 12, 12a.

Comme l'illustre la fig. 2, les portées d'appui 11 et 12 de la bande 4 sont prolongées par des segments saillants 13 et 14.As illustrated in fig. 2, the bearing surfaces 11 and 12 of the strip 4 are extended by projecting segments 13 and 14.

Dans la réalisation des fig. 2 et 3, les bandes 4 et 5, en aluminium ou en alliage d'aluminium, sont revêtues, sur leurs deux faces, de placages 15, 16 respectivement 15a, 16a,en aluminium-silicium pour constituer une brasure.In the realization of fig. 2 and 3, the bands 4 and 5, made of aluminum or aluminum alloy, are coated, on their two faces, with veneers 15, 16 respectively 15a, 16a, made of aluminum-silicon to form a solder.

Une opération suivante de fabrication consiste à replier les segments saillants 13 et 14 de la plaque 4 sur les bords latéraux de la bande 5 pour constituer un agrafage ou sertissage. Au moins un élément dissipateur 2 est également mis en place pour prendre appui sur le dessus des ondulations de chaque bande, ces ondulations présentant des méplats 17 destinés à augmenter le plus possible la surface de contact entre les différents canaux que délimitent chaque tube et le dissipateur.A next manufacturing operation consists in folding the projecting segments 13 and 14 of the plate 4 onto the lateral edges of the strip 5 to constitute a stapling or crimping. At least one dissipating element 2 is also put in place to bear on the top of the corrugations of each strip, these corrugations having flats 17 intended to increase as much as possible the contact surface between the different channels which delimit each tube and the dissipator .

Le dissipateur 2 est fabriqué à partir d'une bande en aluminium sans que cette bande ait à être revêtue d'un placage ou d'un alliage quelconque.The heatsink 2 is made from an aluminum strip without this strip having to be coated with a cladding or any alloy.

Après décapage et fluxage les bandes 4 et 5 ainsi que le dissipateur 2 sont soumis aux opérations de brasage habituelles à la technique, opérations qui ont pour effet d'amener les placages 15, 15a et 16, 16a en fusion pour réunir ensemble les deux bandes 4 et 5, en assurant l'étanchéité du tube, tant au niveau des parties planes 9, 9a, 10, 10a ... qu'au niveau des agrafes formées par les segments saillants 13 et 14. De plus, le placage externe 15a assure le brasage avec le dissipateur 2.After pickling and fluxing the strips 4 and 5 as well as the dissipator 2 are subjected to the usual brazing operations in the technique, operations which have the effect of bringing the veneers 15, 15a and 16, 16a into fusion to join together the two strips 4 and 5, ensuring the tightness of the tube, both at the level of the flat parts 9, 9a, 10, 10a ... and at the level of the staples formed by the protruding segments 13 and 14. In addition, the external cladding 15a ensures soldering with the heatsink 2.

Alors que la fig. 3 représente un seul dissipateur 2, il est évidemment possible de disposer un second dissipateur analogue,contre la face inférieure du ruban 4, pour en assurer le brasage en même temps que celui du dissipateur 2.While fig. 3 represents a single dissipator 2, it is obviously possible to have a second similar dissipator, against the underside of the strip 4, to ensure soldering at the same time as that of the dissipator 2.

Pour la réalisation d'un condenseur du genre de celui décrit en référence à la fig. 1, il est possible, dans une première opération, de procéder au cintrage du tube 1, d'insérer le dissipateur 2 entre les différentes spires et de maintenir l'ensemble dans un montage avant de procéder aux opérations de brasage. Il est également possible de braser des segments de dissipateur puis de procéder ensuite au cintrage des parties de tube non munies de dissipateur.For the production of a condenser of the kind described with reference to FIG. 1, it is possible, in a first operation, to bend the tube 1, to insert the dissipator 2 between the different turns and to maintain the assembly in an assembly before proceeding to the brazing operations. It is also possible to solder heatsink segments and then proceed to bend the parts of the tube not fitted with a heatsink.

La fig. 4 illustre une variante selon laquelle l'une des bandes, de préférence la bande 5, est plaquée sur ses deux faces tandis que la bande 4 qui comporte les segments saillants 13 et 14 destinés à former les agrafes présente seulement un placage 15 sur sa face externe.Fig. 4 illustrates a variant according to which one of the strips, preferably the strip 5, is pressed on its two faces while the strip 4 which comprises the protruding segments 13 and 14 intended to form the staples only has a plating 15 on its face external.

Le dessin montre que dans ce cas on réduit l'épaisseur de matière de placage à une seule couche au niveau des différentes parties des deux bandes devant être brasées entre elles. Cette disposition réduit les risques d'écoulement de la brasure lors de sa fusion en permettant la réalisation de joints de très haute qualité, tout en économisant une couche de placage.The drawing shows that in this case the thickness of the plating material is reduced to a single layer at the level of the different parts of the two strips to be brazed together. This arrangement reduces the risks of the solder flowing during its melting by allowing very high quality joints to be produced, while saving a layer of plating.

La fig. 4 montre que le tube peut de la même façon que celui de la fig. 3 être brasé à deux dissipateurs étant donné qu'une couche de placage de brasure est toujours présente sur les faces externes du tube.Fig. 4 shows that the tube can in the same way as that of FIG. 3 be brazed with two dissipators since a layer of solder plating is always present on the external faces of the tube.

La fig. 5 illustre un développement de l'invention qui permet d'assurer un accostage et un maintien sous légère pression des portées d'appui complémentaires 9, 9a et 10, 10a.Fig. 5 illustrates a development of the invention which makes it possible to ensure docking and maintenance under slight pressure of the additional bearing surfaces 9, 9a and 10, 10a.

Pour cela les bandes 4 et 5 sont mises en forme, non seulement pour présenter les ondulations 6, 6a, 7, 7a ..., mais encore pour s'étendre approximativement le long de génératrices en arc de cercle 18 et 19. On prend soin cependant que les portées d'appui 11, 11a et 12, 12a soient parfaitement planes afin que l'agrafe puisse être correctement formée.For this the strips 4 and 5 are shaped, not only to present the corrugations 6, 6a, 7, 7a ..., but still to extend approximately along generators in an arc 18 and 19. Care is taken, however, that the bearing surfaces 11, 11a and 12, 12a are perfectly flat so that the clip can be correctly formed.

L'examen de la fig. 5 montre qu'après le rapprochement des portées d'appui 11a et 12a une pression élastique est exercée entre les parties planes 9a et 10a. Par conséquent, ces parties sont maintenues correctement en appui mutuel, même pendant la fusion de l'alliage de brasage aluminium-silicium dont la fluidité à l'état fondu est bien connue.Examination of fig. 5 shows that after the approximation of the bearing surfaces 11a and 12a an elastic pressure is exerted between the planar parts 9a and 10a. Consequently, these parts are correctly maintained in mutual support, even during the melting of the aluminum-silicon brazing alloy, the fluidity of which in the molten state is well known.

L'invention n'est pas limitée aux exemples de réalisation représentés et décrits en détail, car diverses modifications peuvent y être apportées sans sortir de son cadre. En particulier, le tube peut comporter un plus petit nombre ou au contraire un plus grand nombre de canaux. Des perturbateurs non représentés peuvent être disposés dans les canaux ; ces perturbateurs étant réalisés en aluminium, leur brasage est assuré par les placages d'aluminium-silicium revêtant les faces internes des bandes 4, 5.The invention is not limited to the embodiments shown and described in detail, since various modifications can be made thereto without departing from its scope. In particular, the tube may have a smaller number or, on the contrary, a greater number of channels. Disturbers not shown may be placed in the channels; these disturbers being made of aluminum, their brazing is ensured by the aluminum-silicon cladding coating the internal faces of the strips 4, 5.

Claims (6)

1 - Tube brasé en aluminium pour échangeur de chaleur, caractérisé en ce qu'il comporte deux bandes (4, 5) présentant chacune au moins une ondulation (6, 6a), et deux portées d'appui (11a, 12a) complémentaires dont l'une présente un segment saillant (13, 14) replié pour former une agrafe enveloppant la portée d'appui de l'autre bande, lesdites deux bandes présentant des faces plaquées d'alliage de brasure (15, 16), assurant leur réunion mutuelle ainsi que la liaison avec au moins un dissipateur secondaire.1 - Brazed aluminum tube for heat exchanger, characterized in that it comprises two bands (4, 5) each having at least one corrugation (6, 6a), and two complementary bearing surfaces (11a, 12a) of which one has a protruding segment (13, 14) folded over to form a staple enveloping the bearing surface of the other strip, said two strips having faces plated with brazing alloy (15, 16), ensuring their union mutual insurance as well as the connection with at least one secondary dissipator. 2 - Tube suivant la revendication 1, caractérisé en ce que chaque bande présente au moins un méplat (17) pour l'appui du dissipateur (2).2 - Tube according to claim 1, characterized in that each strip has at least one flat (17) for the support of the dissipator (2). 3 - Tube suivant l'une des revendications 1 ou 2, caractérisé en ce que chaque bande présente plusieurs ondulations (6, 6a, 7, 7a ...), séparées par des parties planes (9, 9a, 10, 10a) prenant appui les unes contre les autres.3 - Tube according to one of claims 1 or 2, characterized in that each strip has several undulations (6, 6a, 7, 7a ...), separated by flat parts (9, 9a, 10, 10a) taking support against each other. 4 - Tube suivant l'une des revendications 1 à 3, caractérisé en ce que les bandes sont revêtues sur leurs deux faces d'un placage de brasure.4 - Tube according to one of claims 1 to 3, characterized in that the strips are coated on both sides with a solder plating. 5 - Tube suivant l'une des revendications 1 à 4, caractérisé en ce que la bande formant les segments saillants est revêtue d'un placage de brasure (15) seulement sur sa face externe, tandis que l'autre bande est revêtue d'un placage (15a, 16a) sur ses deux faces.5 - Tube according to one of claims 1 to 4, characterized in that the strip forming the projecting segments is coated with a solder plating (15) only on its outer face, while the other strip is coated with a veneer (15a, 16a) on its two faces. 6 - Tube suivant l'une des revendications 1 à 5, caractérisé en ce que les bandes ondulées sont conformées pour s'étendre suivant des génératrices en arc de cercle (18, 19).6 - Tube according to one of claims 1 to 5, characterized in that the corrugated strips are shaped to extend along generators in an arc (18, 19).
EP84401704A 1983-09-08 1984-08-22 Brazed aluminium conduit for a heat exchanger Withdrawn EP0145509A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8314313 1983-09-08
FR8314313A FR2551851B1 (en) 1983-09-08 1983-09-08 ALUMINUM BRAZED TUBE FOR HEAT EXCHANGER

Publications (1)

Publication Number Publication Date
EP0145509A1 true EP0145509A1 (en) 1985-06-19

Family

ID=9292060

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84401704A Withdrawn EP0145509A1 (en) 1983-09-08 1984-08-22 Brazed aluminium conduit for a heat exchanger

Country Status (5)

Country Link
EP (1) EP0145509A1 (en)
JP (1) JPS6072665A (en)
DE (1) DE145509T1 (en)
ES (1) ES289808Y (en)
FR (1) FR2551851B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2061345C (en) * 1991-04-08 2003-11-04 Lance J. Evens Edge seam for clamshelll heat exchanger

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2782009A (en) * 1952-03-14 1957-02-19 Gen Motors Corp Heat exchangers
FR1353580A (en) * 1963-01-15 1964-02-28 Chausson Usines Sa Heat exchanger manufacturing process and resulting product
FR1507989A (en) * 1966-01-18 1967-12-29 Daimler Benz Ag recovery heat exchanger
US3375570A (en) * 1965-03-15 1968-04-02 Mcdonnell Aircraft Corp Fluxless brazing of aluminum heat exchangers
GB1147424A (en) * 1966-06-03 1969-04-02 John Edward Brown Improvements in or relating to radiators and their manufacture
GB1159125A (en) * 1966-10-01 1969-07-23 Ford Motor Co Cooling Radiators
US3712372A (en) * 1971-03-01 1973-01-23 Oilin Corp Method and apparatus for deforming a flat on parts of metal strip-type tubing while leaving other parts undeformed
FR2149259A1 (en) * 1971-08-06 1973-03-30 Chausson Usines Sa Soldering aluminium radiators - or similar heat exchangers
US3855682A (en) * 1972-04-06 1974-12-24 Chausson Usines Sa Method of soldering together an aluminum part and a ferrous or cuprous metal part

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2782009A (en) * 1952-03-14 1957-02-19 Gen Motors Corp Heat exchangers
FR1353580A (en) * 1963-01-15 1964-02-28 Chausson Usines Sa Heat exchanger manufacturing process and resulting product
US3375570A (en) * 1965-03-15 1968-04-02 Mcdonnell Aircraft Corp Fluxless brazing of aluminum heat exchangers
FR1507989A (en) * 1966-01-18 1967-12-29 Daimler Benz Ag recovery heat exchanger
GB1147424A (en) * 1966-06-03 1969-04-02 John Edward Brown Improvements in or relating to radiators and their manufacture
GB1159125A (en) * 1966-10-01 1969-07-23 Ford Motor Co Cooling Radiators
US3712372A (en) * 1971-03-01 1973-01-23 Oilin Corp Method and apparatus for deforming a flat on parts of metal strip-type tubing while leaving other parts undeformed
FR2149259A1 (en) * 1971-08-06 1973-03-30 Chausson Usines Sa Soldering aluminium radiators - or similar heat exchangers
US3855682A (en) * 1972-04-06 1974-12-24 Chausson Usines Sa Method of soldering together an aluminum part and a ferrous or cuprous metal part

Also Published As

Publication number Publication date
ES289808Y (en) 1986-10-16
DE145509T1 (en) 1986-01-30
FR2551851A1 (en) 1985-03-15
FR2551851B1 (en) 1985-10-18
JPS6072665A (en) 1985-04-24
ES289808U (en) 1986-03-01

Similar Documents

Publication Publication Date Title
EP0505244B1 (en) Heat exchanger with tube bundle, more particularly for motor vehicle
EP0776454B1 (en) Flat tube for a heat exchanger
FR2732101A1 (en) FLAT TUBE FOR HEAT EXCHANGER ASSEMBLED BY BRAZING AND METHOD OF MANUFACTURING AND USE OF SUCH TUBE
US6513585B2 (en) Header-less vehicle radiator
FR2878946A1 (en) PROFILE LAMINATED METAL TUBE AND METHOD OF MANUFACTURING THE SAME
EP0617249A2 (en) Heat exchanger
FR2770632A1 (en) Heat exchanger with reinforced collector
FR2728667A1 (en) HEAT EXCHANGER, HEAT EXCHANGER TUBE AND METHODS FOR THEIR MANUFACTURE
EP0593360A1 (en) Tube wall in two parts and process for manufacturing a condenser for the airconditioning of a motor vehicle
FR2660425A1 (en) FLAT TUBE HEAT EXCHANGER.
FR2770633A1 (en) Heat-exchanger with tube bundles for different media
EP0145509A1 (en) Brazed aluminium conduit for a heat exchanger
EP1174673B1 (en) Heat exchange module, more particularly for automotive vehicle, and process for manufacturing same
EP0690763B1 (en) Method for mounting flanges or similar attachment parts on an exchanger plate and exchanger so obtained
EP1861673B1 (en) Improved collector plate, collector box and heat exchanger comprising one such collector plate
FR2742535A1 (en) BRAZED FLUID BOX HEAT EXCHANGER, ESPECIALLY FOR MOTOR VEHICLES
WO2009021826A1 (en) Heat exchanger for gas and corresponding method of manufacture
JP2000018873A5 (en)
EP1649231B1 (en) Tube endpiece for a hydraulic circuit element, particularly for a heat exchanger
FR2810727A1 (en) Heat exchanger tube for car radiator comprises metal strip which is bent over to form edges with space between, tube being folded inwards to form groove into which brazing flux is introduced
FR2726076A1 (en) HEAT EXCHANGER WITH TUBULAR COLLECTOR BOXES
FR2892805A1 (en) COLLECTOR BOX FOR HEAT EXCHANGER, IN PARTICULAR FOR HIGH PRESSURE FLUID, EXCHANGER COMPRISING SUCH BOX AND METHOD FOR MANUFACTURING THE SAME
EP1509740B1 (en) Manifold heat exchanger and manifold chamber of simple construction particularly for a motor vehicle
FR3082929A1 (en) COLLECTOR BOX AND CORRESPONDING HEAT EXCHANGER
FR3034184A1 (en) COLLECTOR BOX FOR THERMAL HEAT EXCHANGER WITH TUBE BEAM

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19840827

AK Designated contracting states

Designated state(s): BE DE GB IT

ITCL It: translation for ep claims filed

Representative=s name: STUDIO ING. ALFREDO RAIMONDI

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19851118

DET De: translation of patent claims
RIN1 Information on inventor provided before grant (corrected)

Inventor name: PAQUET, ANDRE