[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

EP2588825A2 - Heat exchanger tube, heat exchanger comprising such tubes and method for producing one such tube - Google Patents

Heat exchanger tube, heat exchanger comprising such tubes and method for producing one such tube

Info

Publication number
EP2588825A2
EP2588825A2 EP11728213.7A EP11728213A EP2588825A2 EP 2588825 A2 EP2588825 A2 EP 2588825A2 EP 11728213 A EP11728213 A EP 11728213A EP 2588825 A2 EP2588825 A2 EP 2588825A2
Authority
EP
European Patent Office
Prior art keywords
tube
wall
inner spacer
heat exchanger
housing
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Withdrawn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
EP11728213.7A
Other languages
German (de)
French (fr)
Inventor
Laurent Moreau
Alain Bauerheim
Philippe Metayer
Yoann Naudin
Kevin Gahon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Systemes Thermiques SAS
Original Assignee
Valeo Systemes Thermiques SAS
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
Priority claimed from FR1002773A external-priority patent/FR2962203B1/en
Priority claimed from FR1002767A external-priority patent/FR2962202B1/en
Application filed by Valeo Systemes Thermiques SAS filed Critical Valeo Systemes Thermiques SAS
Publication of EP2588825A2 publication Critical patent/EP2588825A2/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/22—Making finned or ribbed tubes by fixing strip or like material to tubes
    • B21C37/225—Making finned or ribbed tubes by fixing strip or like material to tubes longitudinally-ribbed tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/06—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of metal tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
    • 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
    • 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
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
    • 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
    • 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
    • F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49377—Tube with heat transfer means

Definitions

  • Heat exchanger tube heat exchanger comprising such tubes and method for obtaining such a tube.
  • the present invention relates to a heat exchanger tube, a heat exchanger comprising such tubes and a method for obtaining such a tube.
  • the heat exchangers concerned are intended to equip vehicles and correspond, in a preferred application, condensers provided on the loops or air conditioning circuits of the vehicles.
  • condensers provided on the loops or air conditioning circuits of the vehicles.
  • radiators of the loops or cooling circuits of the motors without departing from the scope of the invention.
  • the air conditioning loop of the passenger compartment of a vehicle consists, mainly, in the direction of circulation of the refrigerant (for example, freon, CO 2 , fluid known as 1234YF) traveling through it, a compressor compressing the fluid then in the form of steam, a condenser receiving fluid to pass it in liquid form through an external air flow sweeping it, a pressure reducing valve and an evaporator, where the expanded and condensed fluid, exchanges heat with an external air flow to be sent into the passenger compartment.
  • the fluid is transformed into vapor phase at the evaporator outlet to be fed into the compressor for a new cycle, while the external air flow through the evaporator is cooled to provide conditioned air in the passenger compartment.
  • the condenser forming the heat exchanger comprises a bundle of parallel tubes and two collectors (or manifolds) in which are connected in a fixed and sealed manner, the corresponding ends of the tubes, by brazing.
  • the refrigerant of the loop can flow through the tubes, passing the fluid from its vapor phase to its liquid phase by the external air flow sweeping the tubes.
  • the invention relates to heat exchanger tubes made from folding technology.
  • such tubes are obtained from a coil of metal foil which, as a result of its unwinding strip, is gradually shaped to the desired cross section by specific folding tools or the like, and then cut to length desired, in sections corresponding to the final tubes.
  • the heat exchanger tubes can be subjected to many stresses such as a high-speed impact with an object (for example, a gravel) from the external environment.
  • the tube must be able to withstand such an impact so as to avoid any leakage of fluid.
  • the reinforcement of the tube can not be effected by an excess thickness of material as is the case for an extruded tube. It is however necessary to locally increase the thickness of the wall of the folded tube because it is generally close to 0.2 mm, which is insufficient from the point of view of the impact resistance grit.
  • a first known folded tube the wall of the tube is folded several times on itself horizontally at a side or nose of the tube increasing the thickness of material in the tube nose.
  • a disadvantage lies in the fact that the height of the tube is thus a function of the material thickness thereof and corresponds to the number of plies.
  • the tube is previously open along one of its sides which is then closed by planar overlap of two wall thicknesses.
  • a disadvantage of such a solution lies in the risk of leakage on the side thus closed.
  • US6192977 discloses a tube whose end consists of the overlap of the wall of the tube. This solution is difficult to control for the tubes of low heights, for example of the order of 1 mm. Furthermore, it is also known, in particular patent DE102005043093, tubes with an internal interlayer. With a tube and an internal spacer, it is not possible to cut the tube and the inner spacer for the lengthening with traditional means (for example, cut with a knife), because the inner spacer tends to compress during this operation. In this case, the tube is first formed and cut to length, the inner spacer is also formed and cut to length, and the tube and the inner spacer are assembled. In this configuration, it is necessary to leave a functional game between the tube and the inner spacer to be able to practice the insertion of it. This game does not promote proper soldering of the components between them.
  • the present invention aims to overcome these disadvantages and relates to a fluid circulation tube whose design allows the inner spacer to strengthen the tube and in particular at least one side of the tube.
  • the heat exchanger tube comprises a folded wall, defining a housing, and an inner spacer, for example corrugated, inserted into the housing.
  • the inner spacer defines a plurality of fluid circulation channels.
  • the wall of the tube has large faces connected by radii.
  • the inner spacer extends in length, for example, from one orifice to the other of the tube.
  • the large faces are, in particular, flat and parallel to each other.
  • the tube is configured so that the clearance along at least one radius between the wall and the inner spacer is filled.
  • the tube being considered in cross section, that is to say along a cutting plane orthogonal to its longitudinal axis, the clearance between the inner spacer and the wall of the tube is filled in the radius, this on all or part of the length of the interlayer. This has the effect of increasing the overall contact surface between the spacer and the walls of the tube, and therefore the thickness of the tube, at least at the nose of the tube.
  • the inner spacer comprises at least one plate with a top, said plate being in contact with the wall. This has for advantage of reinforcing the mechanical strength, including at its flat faces.
  • the inner spacer comprises a plate at each of its vertices, said plate being in contact with the wall.
  • the tube is configured such that clearance between the wall and the inner spacer is filled along each spoke. This has the advantage of strengthening the tube noses on each side of the tube and thus avoid having to locate the reinforced side.
  • the tube has a B-shaped section and said wall has legs joining at a central portion of said B-shaped section. At least one of said legs is in contact with each other. with the internal interlayer. This has the advantage of reinforcing the mechanical strength of the tube.
  • the invention also relates to a heat exchanger which comprises tubes, as defined above.
  • the heat exchanger with these fluid circulation tubes defines the condenser of an air conditioning loop for a motor vehicle or the like.
  • a heat exchanger finds particular application in the field of motor vehicles, for example to achieve an air conditioning condenser.
  • the exchanger has, for example, the structure mentioned above.
  • the invention also relates to a method for obtaining a heat exchanger tube, in particular an air conditioning system condenser for an automobile.
  • the tube comprises a wall defining a housing and an inner interlayer, for example corrugated, which is inserted into the housing, with a clearance.
  • the inner spacer defines a plurality of fluid circulation channels and the wall of the tube has large faces. , in particular planes, of length L connected by radii of height H.
  • the method comprises the steps according to which the inner spacer is inserted into the housing of the tube and the tube is compressed in the direction of the height.
  • the compression is characterized in that it makes it possible to pass the tube from a height H1 to a height H2 with H2 ⁇ H 1 and a length L1 to a length L2 with L1 ⁇ L2 so that the clearance between the wall and the inner spacer is at least partially filled.
  • the compression allows, by passing the tube from a height H1 to a height H2 with H2 ⁇ H1 and a length L1 to a length L2 with L1 ⁇ L2, to increase the overall contact area between the spacer and the walls of the tube, especially at the level of at least one tube nose.
  • This has the advantage of allowing better brazing between the inner spacer and the walls of the tube in contact with the inner spacer.
  • Another advantage of the process according to the invention lies in the fact that the compression (i.e. deformation) allows a linear and homogeneous reconformation of the tube comprising the internal spacer.
  • the method comprises a preliminary step in which the wall of the tube is obtained, for example, by folding a sheet of material and having after folding a substantially closed section in which the inner interlayer is inserted.
  • the compression is exerted in a direction substantially orthogonal to the flat faces of the tube.
  • the compression step is configured so that the tube and its components, wall and / or spacer, have the characteristics mentioned above.
  • Figure 1A shows a B-fold tube before compression according to an embodiment of the invention and comprising an inner insert inserted between the walls of the tube.
  • Figure 1B shows the tube of Figure 1A after compression.
  • a tube 100 of heat exchanger in particular an air conditioning system condenser for an automobile, comprises a folded wall 105, defining a housing 1 15, and a spacer. internal 1 30, inserted into the housing.
  • the internal tab 130 particularly corrugated, defines a plurality of channels 1 36 of fluid circulation.
  • the wall 105 has large faces, for example flat, connected by radii 1 10.
  • the wall of the tube has, in particular, a B-shaped section.
  • the thin wall thereof generally has a flattened B-shaped cross-section, that is to say, with a base portion. extending laterally, through two connecting portions, by two top portions, which are coplanarly directed towards each other and parallel to the base portion and terminated by end legs adjacent, turned perpendicularly to the base part, providing a gap therebetween.
  • Two channels or longitudinal and parallel internal spaces, corresponding to the loops of B, are then defined in which are inserted, over their entire length and in a known manner, the two networks of folds of an internal interlayer or disrupter which are interconnected by a planar connecting portion fitting into the gap left between the end legs and the base portion of the folded wall of the tube.
  • This or these internal spacers also have the role, in particular, to improve the thermal performance of the condenser, and the mechanical strength of the tubes which must withstand not only the operating pressure in operation of the loop, of the order of 20 bars, but also to that imposed by the specifications, including resistance to bursting tubes up to 1 00 bar, for freon refrigerants.
  • the tube 1 00 is configured so that the play in at least one radius 1 1 0 between the wall 105 and the inner tab 130 is filled.
  • the clearance is defined by the space existing between the inner radius of the ray 1 10 of the tube 100 and the curvature of the end 134 of the inner spacer 130.
  • the contact is continuous so that the play between the wall 105 and the internal tab 130 be fully filled over the entire length of the radius (ie along the entire radius curvature).
  • the tube is configured so that the clearance between the wall 105 and the inner spacer 130 is filled, for example, along each spoke 1 10.
  • the inner spacer 130 comprises at least one plate at a top 132, in particular at each top 132, said plate being in contact with the wall.
  • the tube 100 has, for example, a B-shaped section and the wall has legs 120 joining at the central portion of said B-shaped section, at least one of the legs 120 being in contact with the internal tab 130.
  • the tube 100 comprises a wall 105 defining a housing 1 1 5 and an inner spacer 1 30 inserted into the housing 1 15.
  • the inner spacer 130 defines a plurality of channels 136 of fluid circulation.
  • the wall has large, in particular plane, faces of length L connected by radii of height H.
  • Length L corresponds, as described in FIGS. 1A and 1B, to the dimension of tube 100 in the direction of its longitudinal section.
  • the height H corresponds, as described in Figures 1A and 1B, to the overall thickness of the tube 100, that is to say in the direction of its cross section.
  • the tube extends along its longitudinal axis, orthogonal to the representation plane of FIGS. 1A and 1B.
  • the method according to the invention comprises a first step in which the inner spacer 130 is inserted into the housing 1 of the tube 100 with a clearance.
  • the method according to the invention comprises a second step in which the tube 100 is compressed in the direction of the height H.
  • This compression is characterized in that it allows the tube to be passed from a height H1 to a height H2 with H2 ⁇ H1 and a length L1 to a length L2 with L1 ⁇ L2, the tube 100 being configured after compression so that the clearance between the wall 105 and the inner tab 130 is at least partially filled.
  • the compression step may be generalized to a deformation step without limiting the scope of protection of the present invention.
  • the compression or deformation step allows the wall 105 and the inner spacer 1 30 to be calibrated. This step allows a reconformation of the tube 100 whose dimensions are modified. Before reconformation, there is a clearance in the direction of the height H and also in the direction of the length L which allows the introduction of the inner spacer 1 30.
  • the dimensions of the wall 105 and the inner tab 130 can to be previously defined so that this game exists despite the tolerances of obtaining the two pieces.
  • a reconformation dimension is then defined in order to calibrate the tube 100 and the internal tab 130 and to fill at least one set or all the games provided for insertion.
  • the compression step allows the reduction of the height H and the increase of the length L. This has the effect of filling the clearance in the radius between the wall 105 and the inner spacer 130 and allow brazing of the components. Indeed, due to their design, the increase in dimension L of the wall 105 will be lower than that of the internal spacer 130.
  • the compression step increases the length dimension
  • the method may comprise a preliminary step wherein the wall of the tube is obtained, for example, by folding a sheet of material and has after folding a substantially closed section in which the inner insert is inserted.
  • the compression is exerted in a direction substantially orthogonal to the flat faces of the tube.
  • the compression step is configured so that the tube and its components, wall and / or inner spacer, have, for example, the characteristics mentioned above.
  • the compression step may be configured so that, after compression, the inner spacer 130 comprises a plate at least one of its vertices 136, said plate being in contact with the wall.
  • the compression step thus makes it possible to reveal planar zones on all or part of the vertices 136 of the inner spacer 130.
  • the decrease in the height results in a collapse of the inner spacer 130 generating a flat to its top and, depending on the importance of the calibration, modifying the angulation of the folds of the inner spacer 130. This has the effect of guaranteeing the brazing between the inner wall of the wall 105 and the inner spacer 130 as well as increase the mechanical strength of the torque.
  • the compression step may also be configured so that the clearance between the wall 105 and the inner spacer 130 is filled along each spoke 1 10.
  • the compression step can be further configured so that, after compression, at least one of said legs 120 is in contact with the inner tab 130.

Landscapes

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

Abstract

The invention relates to a heat exchanger tube (100), in particular the condenser of a motor vehicle air conditioning system. The tube comprises: a folded wall (105) defining a housing (115); and an internal separator (130) inserted into the housing, said internal separator defining a plurality of fluid passage channels (136) and said wall (105) having large surfaces connected by radii. According to the invention, the tube (100) is configured such that the clearance between the wall (105) and the internal separator (130) is filled along the length of at least one radius (110).

Description

Tube d'échanqeur de chaleur, échanqeur de chaleur comportant de tels tubes et procédé d'obtention d'un tel tube.  Heat exchanger tube, heat exchanger comprising such tubes and method for obtaining such a tube.
La présente invention concerne un tube d'échangeur de chaleur, un échangeur de chaleur comportant de tels tubes et un procédé d'obtention d'un tel tube. The present invention relates to a heat exchanger tube, a heat exchanger comprising such tubes and a method for obtaining such a tube.
Quoique non exclusivement, les échangeurs thermiques concernés sont destinés à équiper des véhicules et correspondent, dans une application préférentielle, aux condenseurs prévus sur les boucles ou circuits de climatisation des véhicules. On peut cependant envisager une application de ces échangeurs en tant que radiateurs des boucles ou circuits de refroidissement des moteurs, sans sortir du cadre de l'invention.  Although not exclusively, the heat exchangers concerned are intended to equip vehicles and correspond, in a preferred application, condensers provided on the loops or air conditioning circuits of the vehicles. However, it is possible to envisage application of these exchangers as radiators of the loops or cooling circuits of the motors, without departing from the scope of the invention.
D'une manière générale et résumée, la boucle de climatisation de l'habitacle d'un véhicule se compose, principalement, selon le sens de circulation du fluide frigorigène (par exemple, fréon, CO2, fluide connu sous le nom de 1234YF) la parcourant, d'un compresseur comprimant le fluide alors sous forme de vapeur, d'un condenseur recevant le fluide pour le faire passer en sortie sous forme liquide grâce à un flux d'air externe le balayant, d'un détendeur réduisant la pression et d'un évaporateur, où le fluide détendu et condensé, échange de la chaleur avec un flux d'air externe à envoyer dans l'habitacle. Le fluide est transformé en phase vapeur à la sortie de l'évaporateur pour être amené dans le compresseur pour un nouveau cycle, tandis que le flux d'air externe traversant l'évaporateur est refroidi pour fournir l'air climatisé dans l'habitacle. In general and summarized, the air conditioning loop of the passenger compartment of a vehicle consists, mainly, in the direction of circulation of the refrigerant (for example, freon, CO 2 , fluid known as 1234YF) traveling through it, a compressor compressing the fluid then in the form of steam, a condenser receiving fluid to pass it in liquid form through an external air flow sweeping it, a pressure reducing valve and an evaporator, where the expanded and condensed fluid, exchanges heat with an external air flow to be sent into the passenger compartment. The fluid is transformed into vapor phase at the evaporator outlet to be fed into the compressor for a new cycle, while the external air flow through the evaporator is cooled to provide conditioned air in the passenger compartment.
Structurellement, le condenseur formant l'échangeur de chaleur comprend un faisceau de tubes parallèles et deux collecteurs (ou boîtes collectrices) dans lesquels sont raccordées, de façon fixe et étanche, les extrémités correspondantes des tubes, par brasage. Ainsi, le fluide frigorigène de la boucle peut circuler à travers les tubes, faisant passer le fluide de sa phase vapeur à sa phase liquide par le flux d'air externe balayant les tubes.  Structurally, the condenser forming the heat exchanger comprises a bundle of parallel tubes and two collectors (or manifolds) in which are connected in a fixed and sealed manner, the corresponding ends of the tubes, by brazing. Thus, the refrigerant of the loop can flow through the tubes, passing the fluid from its vapor phase to its liquid phase by the external air flow sweeping the tubes.
Deux technologies sont principalement utilisées pour fabriquer ces tubes, avant assemblage avec les collecteurs. Soit par extrusion, engendrant un coût important (filières spécifiques pour chaque type de tubes) mais facilement brasable car naturellement étanche, soit par pliage, offrant différents avantages, mais plus difficile à braser. Two technologies are mainly used to manufacture these tubes, before assembly with the collectors. Or by extrusion, generating a significant cost (specific channels for each type of tubes) but easily soldable because naturally sealed, either by folding, offering different advantages, but more difficult to braze.
L'invention se rapporte aux tubes d'échangeur de chaleur réalisés à partir de la technologie par pliage.  The invention relates to heat exchanger tubes made from folding technology.
Généralement, de tels tubes sont obtenus à partir d'une bobine de feuille métallique qui, par suite de son déroulement en bande, est progressivement mise en forme à la section transversale souhaitée par des outillages spécifiques de pliage ou analogue, puis découpée à la longueur voulue, en tronçons correspondant aux tubes finaux.  Generally, such tubes are obtained from a coil of metal foil which, as a result of its unwinding strip, is gradually shaped to the desired cross section by specific folding tools or the like, and then cut to length desired, in sections corresponding to the final tubes.
Cela étant, les tubes d'échangeur de chaleur peuvent être soumis à de nombreuses sollicitations telles qu'un impact à grande vitesse avec un objet (par exemple, un gravillon) venu de l'environnement extérieur. Le tube doit pouvoir résister à un tel impact de manière à éviter toute fuite de fluide. Pour un tube plié, le renforcement du tube ne peut pas s'effectuer par une surépaisseur de matière comme c'est le cas pour un tube extrudé. Il est pourtant nécessaire d'augmenter localement l'épaisseur de la paroi du tube plié car celle ci est généralement proche de 0.2 mm, ce qui est insuffisant du point de vue de la résistance au choc gravillon.  However, the heat exchanger tubes can be subjected to many stresses such as a high-speed impact with an object (for example, a gravel) from the external environment. The tube must be able to withstand such an impact so as to avoid any leakage of fluid. For a bent tube, the reinforcement of the tube can not be effected by an excess thickness of material as is the case for an extruded tube. It is however necessary to locally increase the thickness of the wall of the folded tube because it is generally close to 0.2 mm, which is insufficient from the point of view of the impact resistance grit.
Dans un premier tube plié connu, la paroi du tube est repliée plusieurs fois sur elle-même horizontalement au niveau d'un côté ou nez du tube augmentant l'épaisseur de matière en nez de tube. Un inconvénient réside dans le fait que la hauteur du tube est ainsi fonction de l'épaisseur de matière de celui-ci et correspond au nombre de plis.  In a first known folded tube, the wall of the tube is folded several times on itself horizontally at a side or nose of the tube increasing the thickness of material in the tube nose. A disadvantage lies in the fact that the height of the tube is thus a function of the material thickness thereof and corresponds to the number of plies.
Dans un autre tube plié connu, le tube est préalablement ouvert le long de l'un de ses côtés qui est ensuite refermé par recouvrement plan sur plan de deux épaisseurs de paroi. Un inconvénient d'une telle solution réside dans le risque de défaut d'étanchéité au niveau du côté ainsi refermé.  In another known folded tube, the tube is previously open along one of its sides which is then closed by planar overlap of two wall thicknesses. A disadvantage of such a solution lies in the risk of leakage on the side thus closed.
Le brevet DE102006006670 décrit une solution comportant des côtés présentant de nombreux plis verticaux. Un inconvénient majeur de cette solution est qu'elle entraîne une surconsommation de matière.  The patent DE102006006670 describes a solution having sides with many vertical folds. A major disadvantage of this solution is that it leads to overconsumption of material.
Le brevet US6192977 présente un tube dont une extrémité est constituée du chevauchement de la paroi du tube. Cette solution est difficilement maîtrisable pour les tubes de faibles hauteurs, par exemple de l'ordre de 1 mm. Par ailleurs, il est aussi connu, notamment du brevet DE102005043093, des tubes avec un intercalaire interne. Avec un tube et un intercalaire interne, il n'est pas possible de procéder à une découpe du tube et de l'intercalaire interne pour la mise à longueur avec des moyens traditionnels (par exemple, coupe au couteau), car l'intercalaire interne à tendance à se comprimer lors de cette opération. Dans ce cas, le tube est d'abord formé puis coupé à longueur, l'intercalaire interne est aussi formé puis coupé à longueur, puis le tube et l'intercalaire interne sont assemblés. Dans cette configuration, il est nécessaire de laisser un jeu fonctionnel entre le tube et l'intercalaire interne pour pouvoir pratiquer l'insertion de celui-ci. Ce jeu ne favorise pas un brasage convenable des composants entre eux. US6192977 discloses a tube whose end consists of the overlap of the wall of the tube. This solution is difficult to control for the tubes of low heights, for example of the order of 1 mm. Furthermore, it is also known, in particular patent DE102005043093, tubes with an internal interlayer. With a tube and an internal spacer, it is not possible to cut the tube and the inner spacer for the lengthening with traditional means (for example, cut with a knife), because the inner spacer tends to compress during this operation. In this case, the tube is first formed and cut to length, the inner spacer is also formed and cut to length, and the tube and the inner spacer are assembled. In this configuration, it is necessary to leave a functional game between the tube and the inner spacer to be able to practice the insertion of it. This game does not promote proper soldering of the components between them.
En effet, dans les solutions existantes, les contacts nécessaires pour augmenter la résistance mécanique entre l'intercalaire interne et les parois du tube ne sont pas nécessairement garantis. Par ailleurs, dans les solutions existantes, le problème du choc gravillon reste posé.  Indeed, in existing solutions, the contacts needed to increase the mechanical strength between the inner spacer and the walls of the tube are not necessarily guaranteed. Moreover, in existing solutions, the problem of gravel impact remains.
La présente invention a pour but de remédier à ces inconvénients et concerne un tube de circulation de fluide dont la conception permet à l'intercalaire interne de renforcer le tube et notamment au moins un côté du tube.  The present invention aims to overcome these disadvantages and relates to a fluid circulation tube whose design allows the inner spacer to strengthen the tube and in particular at least one side of the tube.
Pour cela, le tube d'échangeur de chaleur comprend une paroi pliée, définissant un logement, et un intercalaire interne, par exemple ondulé, inséré dans le logement. L'intercalaire interne définit une pluralité de canaux de circulation de fluide. La paroi du tube présente des grandes faces reliées par des rayons. L'intercalaire interne s'étend en longueur, par exemple, d'un orifice à l'autre du tube. Les grandes faces sont, notamment, planes et parallèle entre elles.  For this, the heat exchanger tube comprises a folded wall, defining a housing, and an inner spacer, for example corrugated, inserted into the housing. The inner spacer defines a plurality of fluid circulation channels. The wall of the tube has large faces connected by radii. The inner spacer extends in length, for example, from one orifice to the other of the tube. The large faces are, in particular, flat and parallel to each other.
Selon l'invention, le tube est configuré de sorte que le jeu le long d'au moins un rayon entre la paroi et l'intercalaire interne soit comblé. Autrement dit, le tube étant considéré en section droite, c'est-à-dire selon un plan de coupe orthogonal à son axe longitudinal, le jeu entre l'intercalaire interne et la paroi du tube est comblé dans le rayon, ceci sur tout ou partie de la longueur de l'intercalaire. Ceci a pour effet d'augmenter la surface globale de contact entre l'intercalaire et les parois du tube, et donc l'épaisseur du tube, au moins au niveau du nez du tube.  According to the invention, the tube is configured so that the clearance along at least one radius between the wall and the inner spacer is filled. In other words, the tube being considered in cross section, that is to say along a cutting plane orthogonal to its longitudinal axis, the clearance between the inner spacer and the wall of the tube is filled in the radius, this on all or part of the length of the interlayer. This has the effect of increasing the overall contact surface between the spacer and the walls of the tube, and therefore the thickness of the tube, at least at the nose of the tube.
Selon un aspect de la présente invention, l'intercalaire interne comprend au moins un plat à un sommet, ledit plat étant au contact de la paroi. Ceci a pour avantage de renforcer la résistance mécanique, y compris au niveau de ses faces planes. According to one aspect of the present invention, the inner spacer comprises at least one plate with a top, said plate being in contact with the wall. This has for advantage of reinforcing the mechanical strength, including at its flat faces.
Selon un aspect de la présente invention, l'intercalaire interne comprend un plat à chacun de ses sommets, ledit plat étant au contact de la paroi.  According to one aspect of the present invention, the inner spacer comprises a plate at each of its vertices, said plate being in contact with the wall.
Selon un aspect de la présente invention, le tube est configuré de sorte que le jeu entre la paroi et l'intercalaire interne soit comblé le long de chaque rayon. Ceci a pour avantage de renforcer les nez de tube de chaque côté du tube et d'éviter ainsi d'avoir à repérer le côté renforcé.  According to one aspect of the present invention, the tube is configured such that clearance between the wall and the inner spacer is filled along each spoke. This has the advantage of strengthening the tube noses on each side of the tube and thus avoid having to locate the reinforced side.
Selon un aspect de la présente invention, le tube présente une section en forme de B et ladite paroi présente des jambes se rejoignant au niveau d'une partie centrale de ladite section en forme de B. Au moins l'une desdites jambes est en contact avec l'intercalaire interne. Ceci a pour avantage de renforcer la résistance mécanique du tube.  According to one aspect of the present invention, the tube has a B-shaped section and said wall has legs joining at a central portion of said B-shaped section. At least one of said legs is in contact with each other. with the internal interlayer. This has the advantage of reinforcing the mechanical strength of the tube.
Il est à noter que, selon l'invention, ces différentes caractéristiques se rencontrent aussi bien dans un tube une fois celui-ci brasé que dans un tube non encore brasé.  It should be noted that, according to the invention, these different characteristics are found both in a tube once it is brazed than in a tube not yet brazed.
L'invention concerne également un échangeur de chaleur qui comporte des tubes, tels qu'ils sont définis précédemment. De préférence, l'échangeur de chaleur avec ces tubes de circulation de fluide définit le condenseur d'une boucle de climatisation pour véhicule automobile ou analogue. Comme indiqué précédemment, un tel échangeur de chaleur trouve une application particulière dans le domaine des véhicules automobiles, par exemple pour réaliser un condenseur de climatisation.  The invention also relates to a heat exchanger which comprises tubes, as defined above. Preferably, the heat exchanger with these fluid circulation tubes defines the condenser of an air conditioning loop for a motor vehicle or the like. As indicated above, such a heat exchanger finds particular application in the field of motor vehicles, for example to achieve an air conditioning condenser.
L'échangeur présente, par exemple, la structure évoquée plus haut.  The exchanger has, for example, the structure mentioned above.
L'invention concerne également un procédé d'obtention d'un tube d'échangeur de chaleur, notamment de condenseur de système de climatisation pour automobile. Le tube comprend une paroi définissant un logement et un intercalaire interne, par exemple ondulé, qui est inséré dans le logement, avec un jeu. L'intercalaire interne définit une pluralité de canaux de circulation de fluide et la paroi du tube présente des grandes faces, notamment planes, de longueur L reliées par des rayons de hauteur H. Le procédé comprend les étapes selon lesquelles on insère l'intercalaire interne dans le logement du tube et on comprime le tube dans le sens de la hauteur. Selon l'invention, la compression est caractérisée en ce qu'elle permet de faire passer le tube d'une hauteur H1 à une hauteur H2 avec H2 < H 1 et d'une longueur L1 à une longueur L2 avec L1 < L2 de sorte que le jeu entre la paroi et l'intercalaire interne soit au moins partiellement comblé. The invention also relates to a method for obtaining a heat exchanger tube, in particular an air conditioning system condenser for an automobile. The tube comprises a wall defining a housing and an inner interlayer, for example corrugated, which is inserted into the housing, with a clearance. The inner spacer defines a plurality of fluid circulation channels and the wall of the tube has large faces. , in particular planes, of length L connected by radii of height H. The method comprises the steps according to which the inner spacer is inserted into the housing of the tube and the tube is compressed in the direction of the height. According to the invention, the compression is characterized in that it makes it possible to pass the tube from a height H1 to a height H2 with H2 <H 1 and a length L1 to a length L2 with L1 <L2 so that the clearance between the wall and the inner spacer is at least partially filled.
La compression permet, en faisant passer le tube d'une hauteur H1 à une hauteur H2 avec H2 < H1 et d'une longueur L1 à une longueur L2 avec L1 < L2, d'augmenter la surface globale de contact entre l'intercalaire et les parois du tube, notamment au niveau d'au moins un nez de tube. Ceci a pour avantage de permettre un meilleur brasage entre l'intercalaire interne et les parois du tube en contact avec l'intercalaire interne. Un autre avantage du procédé selon l'invention réside dans le fait que la compression (i.e. déformation) permet une reconformation linéaire et homogène du tube comprenant l'intercalaire interne.  The compression allows, by passing the tube from a height H1 to a height H2 with H2 <H1 and a length L1 to a length L2 with L1 <L2, to increase the overall contact area between the spacer and the walls of the tube, especially at the level of at least one tube nose. This has the advantage of allowing better brazing between the inner spacer and the walls of the tube in contact with the inner spacer. Another advantage of the process according to the invention lies in the fact that the compression (i.e. deformation) allows a linear and homogeneous reconformation of the tube comprising the internal spacer.
Selon un aspect de la présente invention, le procédé comprend une étape préliminaire selon laquelle la paroi du tube est obtenue, par exemple, par pliage d'une feuille de matière et présente après pliage une section, sensiblement fermée dans laquelle l'intercalaire interne est inséré.  According to one aspect of the present invention, the method comprises a preliminary step in which the wall of the tube is obtained, for example, by folding a sheet of material and having after folding a substantially closed section in which the inner interlayer is inserted.
Selon un aspect de la présente invention, lors de l'étape de compression du procédé, la compression est exercée selon une direction sensiblement orthogonale aux faces planes du tube.  According to one aspect of the present invention, during the compression step of the method, the compression is exerted in a direction substantially orthogonal to the flat faces of the tube.
Selon un aspect de la présente invention, l'étape de compression est configurée de façon à ce que le tube et ses composants, paroi et/ou intercalaire, présentent les caractéristiques évoquées plus haut.  According to one aspect of the present invention, the compression step is configured so that the tube and its components, wall and / or spacer, have the characteristics mentioned above.
Les figures annexées feront bien comprendre comment l'invention peut être réalisée. Sur ces figures, des références identiques désignent des éléments semblables. The appended figures will make it clear how the invention can be realized. In these figures, identical references designate similar elements.
La Figure 1 A représente un tube plié en B avant compression conformément à un mode de réalisation de l'invention et comprenant un intercalaire interne inséré entre les parois du tube.  Figure 1A shows a B-fold tube before compression according to an embodiment of the invention and comprising an inner insert inserted between the walls of the tube.
La Figure 1 B représente le tube de la Figure 1 A après compression. Comme décrit sur les Figures 1 A et 1 B et selon l'invention, un tube 100 d'échangeur de chaleur, notamment de condenseur de système de climatisation pour automobile, comprend une paroi 105 pliée, définissant un logement 1 15, et un intercalaire interne 1 30, inséré dans le logement. L'intercalaire interne 130, notamment ondulé, définit une pluralité de canaux 1 36 de circulation de fluide. La paroi 105 présente des grandes faces, par exemple planes, reliées par des rayons 1 10. La paroi du tube présente, notamment, une section en forme de B. Figure 1B shows the tube of Figure 1A after compression. As described in FIGS. 1A and 1B and according to the invention, a tube 100 of heat exchanger, in particular an air conditioning system condenser for an automobile, comprises a folded wall 105, defining a housing 1 15, and a spacer. internal 1 30, inserted into the housing. The internal tab 130, particularly corrugated, defines a plurality of channels 1 36 of fluid circulation. The wall 105 has large faces, for example flat, connected by radii 1 10. The wall of the tube has, in particular, a B-shaped section.
Autrement dit, dans l'exemple illustré, une fois les tubes pliés puis coupés en tronçon, la paroi mince de ceux-ci présente globalement une section transversale en forme de B aplati, c'est-à-dire, avec une partie de base se prolongeant latéralement, par l'intermédiaire de deux parties de liaison, par deux parties de dessus, qui sont tournées l'une vers l'autre de façon coplanaire et parallèle à la partie de base et qui se terminent par des jambes d'extrémité adjacentes, tournées perpendiculairement vers la partie de base, en ménageant un écartement avec celle-ci. Deux canaux ou espaces internes longitudinaux et parallèles, correspondant aux boucles du B, sont alors définis dans lesquels sont insérés, sur toute leur longueur et de façon connue, les deux réseaux de plis d'un intercalaire interne ou perturbateur qui sont reliés entre eux par une partie de liaison plane s'insérant dans l'écartement laissé entre les jambes d'extrémité et la partie de base de la paroi pliée du tube.  In other words, in the illustrated example, once the tubes are folded and then cut into sections, the thin wall thereof generally has a flattened B-shaped cross-section, that is to say, with a base portion. extending laterally, through two connecting portions, by two top portions, which are coplanarly directed towards each other and parallel to the base portion and terminated by end legs adjacent, turned perpendicularly to the base part, providing a gap therebetween. Two channels or longitudinal and parallel internal spaces, corresponding to the loops of B, are then defined in which are inserted, over their entire length and in a known manner, the two networks of folds of an internal interlayer or disrupter which are interconnected by a planar connecting portion fitting into the gap left between the end legs and the base portion of the folded wall of the tube.
Ce ou ces intercalaires internes ont également pour rôle, notamment, d'améliorer la performance thermique du condenseur, et la tenue mécanique des tubes qui doivent résister non seulement à la pression d'utilisation en fonctionnement de la boucle, de l'ordre de 20 bars, mais aussi à celle imposée par le cahier des charges, notamment une tenue à l'éclatement des tubes jusqu'à 1 00 bars, pour des fluides frigorigènes à base de fréon. Cela, bien évidemment, après le passage du condenseur préalablement assemblé (tubes, avec intercalaires internes, emboîtés dans les collecteurs) dans un four de brasage permettant de solidariser, notamment, les sommets des plis longitudinaux et ondulés de chaque intercalaire interne sur la face interne de la paroi pliée en B de chaque tube, grâce à des revêtements de placage (clad) prévus sur ceux-ci (intercalaire interne et/ou paroi du tube) et dont le point de fusion est légèrement inférieur à celui de la matière constituant la paroi des tubes et intercalaires internes (alliages d'aluminium par exemple).  This or these internal spacers also have the role, in particular, to improve the thermal performance of the condenser, and the mechanical strength of the tubes which must withstand not only the operating pressure in operation of the loop, of the order of 20 bars, but also to that imposed by the specifications, including resistance to bursting tubes up to 1 00 bar, for freon refrigerants. This, of course, after the passage of the condenser previously assembled (tubes, with internal spacers, nested in the manifolds) in a brazing furnace for securing, in particular, the vertices of the longitudinal and corrugated folds of each inner spacer on the inner face of the bent wall B of each tube, by means of clad coatings provided thereon (inner spacer and / or tube wall) and whose melting point is slightly lower than that of the material constituting the wall of tubes and internal spacers (aluminum alloys for example).
Selon l'invention, le tube 1 00 est configuré de sorte que le jeu dans au moins un rayon 1 1 0 entre la paroi 105 et l'intercalaire interne 130 soit comblé. Le jeu est défini par l'espace existant entre le rayon interne du rayon 1 10 du tube 100 et la courbure de l'extrémité 134 de l'intercalaire interne 130. On entend par là que le contact est continu de sorte que le jeu entre la paroi 105 et l'intercalaire interne 130 soit entièrement comblé sur toute la longueur du rayon (i.e le long de toute la courbure du rayon). Le tube est configuré de sorte que le jeu entre la paroi 1 05 et l'intercalaire interne 130 est comblé, par exemple, le long de chaque rayon 1 10. According to the invention, the tube 1 00 is configured so that the play in at least one radius 1 1 0 between the wall 105 and the inner tab 130 is filled. The clearance is defined by the space existing between the inner radius of the ray 1 10 of the tube 100 and the curvature of the end 134 of the inner spacer 130. By this is meant that the contact is continuous so that the play between the wall 105 and the internal tab 130 be fully filled over the entire length of the radius (ie along the entire radius curvature). The tube is configured so that the clearance between the wall 105 and the inner spacer 130 is filled, for example, along each spoke 1 10.
Dans le mode de réalisation illustré, l'intercalaire interne 130 comprend au moins un plat à un sommet 132, notamment à chaque sommet 132, ledit plat étant en contact avec la paroi.  In the illustrated embodiment, the inner spacer 130 comprises at least one plate at a top 132, in particular at each top 132, said plate being in contact with the wall.
Comme déjà dit, le tube 100 présente, par exemple, une section en forme de B et la paroi présente des jambes 120 se rejoignant au niveau de la partie centrale de ladite section en forme de B, au moins l'une des jambes 120 étant en contact avec l'intercalaire interne 130.  As already said, the tube 100 has, for example, a B-shaped section and the wall has legs 120 joining at the central portion of said B-shaped section, at least one of the legs 120 being in contact with the internal tab 130.
L'invention concerne encore un procédé d'obtention d'un tube d'échangeur de chaleur notamment de condenseur de système de climatisation pour automobile. Selon l'invention, le tube 100 comprend une paroi 105 définissant un logement 1 1 5 et un intercalaire interne 1 30 inséré dans le logement 1 15. L'intercalaire interne 130 définit une pluralité de canaux 136 de circulation de fluide. La paroi présente des grandes faces, notamment planes, de longueur L reliées par des rayons de hauteur H. La longueur L correspond, comme décrit sur les Figures 1 A et 1 B, à la dimension du tube 100 dans le sens de sa section longitudinale. La hauteur H correspond, comme décrit sur les Figures 1 A et 1 B, à l'épaisseur globale du tube 100, c'est-à-dire dans le sens de sa section transversale. Bien naturellement, bien que ceci ne soit pas représenté, le tube s'étend selon son axe longitudinal, orthogonal au plan de représentation des figures 1 A et 1 B.  The invention also relates to a method for obtaining a heat exchanger tube including air conditioning system condenser for automobile. According to the invention, the tube 100 comprises a wall 105 defining a housing 1 1 5 and an inner spacer 1 30 inserted into the housing 1 15. The inner spacer 130 defines a plurality of channels 136 of fluid circulation. The wall has large, in particular plane, faces of length L connected by radii of height H. Length L corresponds, as described in FIGS. 1A and 1B, to the dimension of tube 100 in the direction of its longitudinal section. . The height H corresponds, as described in Figures 1A and 1B, to the overall thickness of the tube 100, that is to say in the direction of its cross section. Of course, although this is not shown, the tube extends along its longitudinal axis, orthogonal to the representation plane of FIGS. 1A and 1B.
Le procédé selon l'invention comprend une première étape selon laquelle on insère l'intercalaire interne 130 dans le logement 1 15 du tube 100 avec un jeu.  The method according to the invention comprises a first step in which the inner spacer 130 is inserted into the housing 1 of the tube 100 with a clearance.
Le procédé selon l'invention comprend une seconde étape selon laquelle on comprime le tube 100 dans le sens de la hauteur H. Cette compression est caractérisée en ce qu'elle permet de faire passer le tube d'une hauteur H1 à une hauteur H2 avec H2 < H1 et d'une longueur L1 à une longueur L2 avec L1 < L2, le tube 1 00 étant configuré après compression de sorte que le jeu entre la paroi 105 et l'intercalaire interne 130 soit au moins partiellement comblé.  The method according to the invention comprises a second step in which the tube 100 is compressed in the direction of the height H. This compression is characterized in that it allows the tube to be passed from a height H1 to a height H2 with H2 <H1 and a length L1 to a length L2 with L1 <L2, the tube 100 being configured after compression so that the clearance between the wall 105 and the inner tab 130 is at least partially filled.
L'étape de compression peut être généralisée à une étape de déformation sans limiter l'étendue de la protection de la présente invention. L'étape de compression ou déformation permet à la paroi 105 et à l'intercalaire interne 1 30 d'être calibrés. Cette étape permet une reconformation du tube 100 dont les dimensions sont modifiées. Avant reconformation, il existe un jeu dans le sens de la hauteur H et également dans le sens de la longueur L qui permet l'introduction de l'intercalaire interne 1 30. Les cotes de la paroi 105 et de l'intercalaire interne 130 peuvent être préalablement définies afin que ce jeu existe malgré les tolérances d'obtention des deux pièces. Une cote de reconformation est alors définie afin de calibrer le tube 100 et l'intercalaire interne 130 et de combler au moins un jeu voire tous les jeux prévus pour l'insertion. The compression step may be generalized to a deformation step without limiting the scope of protection of the present invention. The compression or deformation step allows the wall 105 and the inner spacer 1 30 to be calibrated. This step allows a reconformation of the tube 100 whose dimensions are modified. Before reconformation, there is a clearance in the direction of the height H and also in the direction of the length L which allows the introduction of the inner spacer 1 30. The dimensions of the wall 105 and the inner tab 130 can to be previously defined so that this game exists despite the tolerances of obtaining the two pieces. A reconformation dimension is then defined in order to calibrate the tube 100 and the internal tab 130 and to fill at least one set or all the games provided for insertion.
L'étape de compression permet la diminution de la hauteur H et l'augmentation de la longueur L. Ceci a pour effet de combler le jeu dans le rayon entre la paroi 105 et l'intercalaire interne 130 et de permettre un brasage des composants. En effet, de part leur design, l'augmentation de cote L de la paroi 105 sera plus faible que celle de l'intercalaire interne 130.  The compression step allows the reduction of the height H and the increase of the length L. This has the effect of filling the clearance in the radius between the wall 105 and the inner spacer 130 and allow brazing of the components. Indeed, due to their design, the increase in dimension L of the wall 105 will be lower than that of the internal spacer 130.
Autrement dit, l'étape de compression permet d'augmenter la cote de longueur In other words, the compression step increases the length dimension
L de l'intercalaire interne 130 de manière plus importante que celle de la paroi 105. Ceci permet de combler le jeu d'assemblage entre l'intercalaire interne 130 et le rayon interne du nez de tube 1 10. Ceci permet par ailleurs de rendre le brasage des deux composants (i.e. paroi 105 et intercalaire interne 130) possible et ainsi d'augmenter la résistance mécanique, notamment au niveau du nez de tube 1 10. L of the inner spacer 130 more than that of the wall 105. This allows to fill the assembly clearance between the inner spacer 130 and the inner radius of the tube nose 1 10. This also allows to make the brazing of the two components (ie wall 105 and inner spacer 130) possible and thus increase the mechanical strength, especially at the tube nose 1 10.
Le procédé pourra comprendre une étape préliminaire selon laquelle la paroi du tube est obtenue, par exemple, par pliage d'une feuille de matière et présente après pliage une section, sensiblement fermée dans laquelle l'intercalaire interne est inséré.  The method may comprise a preliminary step wherein the wall of the tube is obtained, for example, by folding a sheet of material and has after folding a substantially closed section in which the inner insert is inserted.
Dans un mode de réalisation, lors de l'étape de compression du procédé, la compression est exercée selon une direction sensiblement orthogonale aux faces planes du tube.  In one embodiment, during the compression step of the method, the compression is exerted in a direction substantially orthogonal to the flat faces of the tube.
L'étape de compression est configurée de façon à ce que le tube et ses composants, paroi et/ou intercalaire interne, présentent, par exemple, les caractéristiques évoquées plus haut.  The compression step is configured so that the tube and its components, wall and / or inner spacer, have, for example, the characteristics mentioned above.
Plus précisément, l'étape de compression pourra être configurée pour que, après compression, l'intercalaire interne 130 comprenne un plat à au moins l'un de ses sommets 136, ledit plat étant en contact avec la paroi. L'étape de compression permet ainsi de faire apparaître des zones planes sur tout ou partie des sommets 136 de l'intercalaire interne 130. Autrement dit, la diminution de la hauteur a pour conséquences un affaissement de l'intercalaire interne 130 générant un plat à son sommet et, selon l'importance de la calibration, modifiant l'angulation des plis de l'intercalaire interne 130. Ceci a pour effet de garantir le brasage entre la paroi interne de la paroi 105 et l'intercalaire interne 130 ainsi que d'augmenter la résistance mécanique du couple. More specifically, the compression step may be configured so that, after compression, the inner spacer 130 comprises a plate at least one of its vertices 136, said plate being in contact with the wall. The compression step thus makes it possible to reveal planar zones on all or part of the vertices 136 of the inner spacer 130. In other words, the decrease in the height results in a collapse of the inner spacer 130 generating a flat to its top and, depending on the importance of the calibration, modifying the angulation of the folds of the inner spacer 130. This has the effect of guaranteeing the brazing between the inner wall of the wall 105 and the inner spacer 130 as well as increase the mechanical strength of the torque.
L'étape de compression pourra aussi être configurée pour que le jeu entre la paroi 105 et l'intercalaire interne 130 soit comblé le long de chaque rayon 1 10.  The compression step may also be configured so that the clearance between the wall 105 and the inner spacer 130 is filled along each spoke 1 10.
L'étape de compression pourra encore être configurée pour que, après compression, au moins l'une desdites jambes 120 soit en contact avec l'intercalaire interne 130.  The compression step can be further configured so that, after compression, at least one of said legs 120 is in contact with the inner tab 130.

Claims

REVEN DICATIONS REVEN DICATIONS
1 . Tube d'échangeur de chaleur, notamment de condenseur de système de climatisation pour automobile, ledit tube 100 comprenant une paroi (105) pliée, définissant un logement (1 15), et un intercalaire interne (130), inséré dans ledit logement, ledit intercalaire interne définissant une pluralité de canaux (136) de circulation de fluide, ladite paroi (105) présentant des grandes faces reliées par des rayons (1 10), caractérisé en ce que le tube (100) est configuré de sorte que le jeu entre la paroi (105) et l'intercalaire interne (130) soit comblé, le long d'au moins un rayon (1 10). 1. Heat exchanger tube, in particular an air conditioning system condenser for an automobile, said tube 100 comprising a folded wall (105) defining a housing (1 15), and an internal spacer (130) inserted into said housing, said inner spacer defining a plurality of fluid circulation channels (136), said wall (105) having large faces connected by spokes (1 10), characterized in that the tube (100) is configured so that the clearance between the wall (105) and the inner spacer (130) are filled along at least one radius (1 10).
2. Tube selon la revendication 1 , dans lequel l'intercalaire interne (130) est ondulé et comprend au moins un plat à un sommet (132), ledit plat étant au contact de la paroi (105). 2. The tube of claim 1, wherein the inner spacer (130) is corrugated and comprises at least one plate at a vertex (132), said plate being in contact with the wall (105).
3. Tube selon l'une quelconque des revendications précédentes, dans lequel l'intercalaire interne (130) est ondulé et comprend un plat à chacun de ses sommets (132), ledit plat étant au contact de la paroi (105). 3. Tube according to any one of the preceding claims, wherein the inner spacer (130) is corrugated and comprises a plate at each of its vertices (132), said plate being in contact with the wall (105).
4. Tube selon l'une quelconque des revendications précédentes, dans lequel ledit tube (100) est configuré de sorte que le jeu entre la paroi (105) et l'intercalaire interne (130) soit comblé le long de chaque rayon (1 10). The tube of any of the preceding claims, wherein said tube (100) is configured such that clearance between the wall (105) and the inner spacer (130) is filled along each spoke (10). ).
5. Tube selon l'une quelconque des revendications précédentes, dans lequel ledit tube (100) présente une section en forme de B et ladite paroi (1 05) présente des jambes (1 20) se rejoignant au niveau d'une partie centrale de ladite section en forme de B, au moins l'une desdites jambes (120) étant en contact avec l'intercalaire interne (130). Tube according to any one of the preceding claims, wherein said tube (100) has a B-shaped section and said wall (105) has legs (1 20) meeting at a central portion of said B-shaped section, at least one of said legs (120) being in contact with the inner spacer (130).
6. Echangeur de chaleur, notamment condenseur de système de climatisation pour automobile, caractérisé en ce qu'il comprend au moins un tube (100) selon l'une quelconque des revendications précédentes. 6. Heat exchanger, including automotive air conditioning system condenser, characterized in that it comprises at least one tube (100) according to any one of the preceding claims.
7. Procédé d'obtention d'un tube d'échangeur de chaleur, notamment de condenseur de système de climatisation pour automobile, ledit tube (1 00) comprenant une paroi (105) définissant un logement (1 15) et un intercalaire interne (130) inséré dans ledit logement (1 15), ledit intercalaire interne (130) définissant une pluralité de canaux de circulation de fluide (136), ladite paroi présentant des grandes faces de longueur L reliées par des rayons de hauteur H, ledit procédé comprenant les étapes selon lesquelles: 7. A method for obtaining a heat exchanger tube, particularly an air conditioning system condenser for an automobile, said tube (1 00) comprising a wall (105) defining a housing (1 15) and an internal spacer ( 130) inserted in said housing (1 15), said inner spacer (130) defining a plurality of fluid circulation channels (136), said wall having large lengthwise faces L connected by radii of height H, said method comprising the steps according to which:
- on insère l'intercalaire interne (1 30) dans le logement (1 15) du tube (100) avec un jeu,  inserting the inner spacer (1 30) in the housing (1 15) of the tube (100) with a clearance,
- on comprime le tube (100) dans le sens de la hauteur, ladite compression permettant de faire passer le tube (100) d'une hauteur H1 à une hauteur H2 avec H2 < H1 et d'une longueur L1 à une longueur L2 avec L1 < L2, le tube 100 étant configuré après compression de sorte que le jeu entre la paroi (105) et l'intercalaire interne (130) soit au moins partiellement comblé. the tube (100) is compressed in the direction of the height, said compression making it possible to pass the tube (100) from a height H1 to a height H2 with H2 <H1 and from a length L1 to a length L2 with L1 <L2, the tube 100 being configured after compression so that the clearance between the wall (105) and the inner spacer (130) is at least partially filled.
8. Procédé selon la revendication 7, ledit procédé comprenant une étape préliminaire selon laquelle la paroi (105) du tube (1 00) est obtenue par pliage d'une feuille de matière, ladite paroi 105 présentant, après pliage, une section sensiblement fermée dans laquelle l'intercalaire interne (130) est inséré. 8. The method of claim 7, said method comprising a preliminary step in which the wall (105) of the tube (1 00) is obtained by folding a sheet of material, said wall 105 having, after folding, a substantially closed section. wherein the inner spacer (130) is inserted.
9. Procédé selon l'une quelconque des revendications précédentes 7 à 8, dans lequel la compression est exercée selon une direction sensiblement orthogonale aux faces planes du tube (100). 9. A method according to any one of the preceding claims 7 to 8, wherein the compression is exerted in a direction substantially orthogonal to the planar faces of the tube (100).
10. Procédé selon l'une quelconque des revendications précédentes 7 à 9, dans lequel l'étape de compression est configurée de façon à ce que le tube (100) et ses composants, paroi (105) ou intercalaire interne (130), présentent des caractéristiques selon l'une quelconque des revendications 1 à 5. The method according to any one of the preceding claims 7 to 9, wherein the compressing step is configured so that the tube (100) and its components, wall (105) or inner spacer (130), features according to any one of claims 1 to 5.
EP11728213.7A 2010-06-30 2011-06-14 Heat exchanger tube, heat exchanger comprising such tubes and method for producing one such tube Withdrawn EP2588825A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR1002773A FR2962203B1 (en) 2010-06-30 2010-06-30 TUBE FOR HEAT EXCHANGER AND HEAT EXCHANGER EQUIPPED WITH SUCH A TUBE
FR1002767A FR2962202B1 (en) 2010-06-30 2010-06-30 TUBE FOR HEAT EXCHANGER AND HEAT EXCHANGER EQUIPPED WITH SUCH A TUBE
FR1060044A FR2962204B1 (en) 2010-06-30 2010-12-02 HEAT EXCHANGER TUBE, HEAT EXCHANGER HAVING SUCH TUBES AND METHOD OF OBTAINING SUCH TUBE.
PCT/EP2011/059825 WO2012000779A2 (en) 2010-06-30 2011-06-14 Heat exchanger tube, heat exchanger comprising such tubes and method for producing one such tube

Publications (1)

Publication Number Publication Date
EP2588825A2 true EP2588825A2 (en) 2013-05-08

Family

ID=43757841

Family Applications (3)

Application Number Title Priority Date Filing Date
EP11728213.7A Withdrawn EP2588825A2 (en) 2010-06-30 2011-06-14 Heat exchanger tube, heat exchanger comprising such tubes and method for producing one such tube
EP11726789.8A Active EP2588824B1 (en) 2010-06-30 2011-06-21 Fluid circulation tube for a heat exchanger and a heat exchanger comprising such tubes
EP14152354.8A Active EP2725317B1 (en) 2010-06-30 2011-06-21 Heat exchanger tube and heat exchanger comprising such a tube

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP11726789.8A Active EP2588824B1 (en) 2010-06-30 2011-06-21 Fluid circulation tube for a heat exchanger and a heat exchanger comprising such tubes
EP14152354.8A Active EP2725317B1 (en) 2010-06-30 2011-06-21 Heat exchanger tube and heat exchanger comprising such a tube

Country Status (8)

Country Link
US (3) US20130192811A1 (en)
EP (3) EP2588825A2 (en)
JP (2) JP6069194B2 (en)
KR (3) KR20130098292A (en)
CN (2) CN103080685B (en)
FR (1) FR2962204B1 (en)
PL (2) PL2725317T3 (en)
WO (2) WO2012000779A2 (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2962204B1 (en) 2010-06-30 2014-11-21 Valeo Systemes Thermiques HEAT EXCHANGER TUBE, HEAT EXCHANGER HAVING SUCH TUBES AND METHOD OF OBTAINING SUCH TUBE.
FR2973490B1 (en) * 2011-03-31 2018-05-18 Valeo Systemes Thermiques THERMAL EXCHANGER TUBE, HEAT EXCHANGER AND CORRESPONDING PROCESSING METHOD
FR2986314A1 (en) * 2012-01-31 2013-08-02 Valeo Systemes Thermiques THERMAL EXCHANGER TUBE, HEAT EXCHANGER AND CORRESPONDING OBTAINING METHOD
US9194389B2 (en) * 2012-10-10 2015-11-24 Tricore Corporation Highly airtight gas pump
CN104792210A (en) * 2014-01-16 2015-07-22 泰安鼎鑫冷却器有限公司 Three-part combined radiating tube
US10113813B2 (en) 2014-02-21 2018-10-30 Hanon Systems Tube for heat exchanger
KR102189621B1 (en) * 2015-01-29 2020-12-11 한온시스템 주식회사 A tube for heat exchanger
KR102191901B1 (en) * 2014-03-05 2020-12-17 한온시스템 주식회사 A tube for heat exchanger
WO2015126105A1 (en) * 2014-02-21 2015-08-27 한라비스테온공조 주식회사 Tube for heat exchanger
JP6170016B2 (en) * 2014-06-18 2017-07-26 株式会社ユタカ技研 Manufacturing method of fin case for heat exchanger
CN105484853B (en) * 2014-09-17 2018-07-06 泰安鼎鑫冷却器有限公司 A kind of double wave inner fin structure charge air cooler
CN104668921A (en) * 2014-12-15 2015-06-03 上海德尔福汽车空调系统有限公司 Furnace-brazing foldable heat radiation pipe and production method thereof
KR102371382B1 (en) * 2015-07-24 2022-03-08 한온시스템 주식회사 A tube for heat exchanger
NL2015996B1 (en) * 2015-12-21 2017-06-30 Recair Holding B V Heat exchanger.
CN106949769A (en) * 2016-01-07 2017-07-14 上海交通大学 Modular folding heat exchange flat tube
KR102289749B1 (en) * 2017-05-10 2021-08-13 현대모비스 주식회사 Tube for heat exchanger
DE102018111585A1 (en) * 2017-06-22 2018-12-27 Hanon Systems Heat transfer device and method of manufacturing the device
US20200088474A1 (en) * 2018-09-13 2020-03-19 Denso International America, Inc. Impact resistant structural radiator tube
EP3650799B1 (en) * 2018-11-07 2021-12-15 Borgwarner Emissions Systems Spain, S.L.U. A fin body for a heat exchange tube
KR102660499B1 (en) 2019-01-08 2024-04-24 현대모비스 주식회사 Tube assembly for heat management apparatus and manufacturing method thereof
KR102174251B1 (en) * 2019-06-14 2020-11-04 한온시스템 주식회사 A tbe for heat exchanger
CN112103421B (en) * 2019-06-18 2021-10-22 宁德时代新能源科技股份有限公司 Temperature control components and battery packs
LU500125B1 (en) 2021-05-05 2022-11-08 Estra Automotive Systems Luxembourg S A R L Exchanger tube for a heat exchanger

Family Cites Families (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2912749A (en) * 1956-01-13 1959-11-17 Modine Mfg Co Method of making a heat exchanger
GB1149923A (en) * 1966-07-01 1969-04-23 Karl Sten Bertil Lundberg Improvements in or relating to methods of manufacturing lamellae for heat exchangers
JPS6167531A (en) * 1984-09-07 1986-04-07 Showa Alum Corp Manufacturing method of heat exchange tube with inner fins
JPH04129678U (en) * 1991-04-30 1992-11-27 日野自動車工業株式会社 intercooler
JPH0552565U (en) * 1991-12-20 1993-07-13 サンデン株式会社 Heat exchanger
FR2690513B1 (en) * 1992-04-24 1994-07-29 Valeo Thermique Moteur Sa ELONGATE SECTION TUBE FOR A HEAT EXCHANGER, PARTICULARLY A MOTOR VEHICLE, AND HEAT EXCHANGER COMPRISING SUCH TUBES.
GB2268260A (en) * 1992-06-24 1994-01-05 Llanelli Radiators Ltd Heat exchange tubes formed from a unitary portion of sheet or strip material
US5579837A (en) * 1995-11-15 1996-12-03 Ford Motor Company Heat exchanger tube and method of making the same
JP3799671B2 (en) * 1996-08-07 2006-07-19 株式会社デンソー Heat exchanger, heat exchanger tube and heat exchanger manufacturing method
US5934365A (en) * 1997-08-21 1999-08-10 Ford Motor Company Heat exchanger
JP2000329488A (en) * 1999-05-20 2000-11-30 Toyo Radiator Co Ltd Flat tube for heat exchanger
US6192977B1 (en) 1999-09-29 2001-02-27 Valeo Thermique Moteur Tube for heat exchanger
FR2803378B1 (en) * 1999-12-29 2004-03-19 Valeo Climatisation MULTI-CHANNEL TUBE HEAT EXCHANGER, PARTICULARLY FOR MOTOR VEHICLES
JP2001263976A (en) * 2000-03-15 2001-09-26 Zexel Valeo Climate Control Corp Heat exchanger
JP2002096132A (en) * 2000-07-25 2002-04-02 Manto Kucho Kk Device for manufacturing refrigerant tube for heat exchanger and manufacturing method therefor
US20040182559A1 (en) * 2001-03-22 2004-09-23 Kent Scott Edward Heat exchanger tube
FR2823840B1 (en) * 2001-04-20 2004-01-23 Valeo Thermique Moteur Sa FOLDED TUBE FOR HEAT EXCHANGER AND METHOD FOR CONFORMING SAME
FR2836546B1 (en) * 2002-02-22 2004-05-07 Valeo Thermique Moteur Sa BEND TUBE HEAT EXCHANGER
JP2003302186A (en) * 2002-04-05 2003-10-24 Zexel Valeo Climate Control Corp Tube for heat-exchanger, its manufacturing method, and heat-exchanger
JP2004333023A (en) * 2003-05-08 2004-11-25 Toyo Radiator Co Ltd Flat tube for aluminum heat exchanger
DE10328001A1 (en) * 2003-06-21 2005-01-05 Modine Manufacturing Co., Racine Flat heat exchanger tube
EP1774241A2 (en) * 2004-07-28 2007-04-18 Valeo Inc. Automotive heat exchanger assemblies having internal fins and methods of making the same
DE102004049809A1 (en) * 2004-10-12 2006-04-13 Behr Gmbh & Co. Kg Flat tube for heat exchanger
US7182128B2 (en) * 2005-03-09 2007-02-27 Visteon Global Technologies, Inc. Heat exchanger tube having strengthening deformations
DE102005013777A1 (en) * 2005-03-22 2006-09-28 Behr Gmbh & Co. Kg Pipe for a heat exchanger
DE102005043093A1 (en) 2005-09-10 2007-03-15 Modine Manufacturing Co., Racine Flat aluminum tube used in vehicle heat exchanger to cool supercharged air or alternatively in air heater, is made from single metal strip and contains wavy insert extending across full width
JP2007178010A (en) * 2005-12-27 2007-07-12 Calsonic Kansei Corp Inner fin for heat exchanger
DE102006006670B4 (en) 2006-02-14 2014-02-13 Modine Manufacturing Co. Flat tube for heat exchanger
US7921559B2 (en) * 2006-01-19 2011-04-12 Modine Manufacturing Company Flat tube, flat tube heat exchanger, and method of manufacturing same
JP2007298201A (en) * 2006-04-28 2007-11-15 Denso Corp Heat exchanger, processing equipment, and method of manufacturing heat exchanger
DE102007039292A1 (en) * 2007-08-20 2009-02-26 Behr Gmbh & Co. Kg Multi-chamber flat tube, heat exchanger and use of a heat exchanger
JP2010008018A (en) * 2008-06-30 2010-01-14 Showa Denko Kk Heat exchange pipe with inner fin and heat exchanger using it
FR2962204B1 (en) 2010-06-30 2014-11-21 Valeo Systemes Thermiques HEAT EXCHANGER TUBE, HEAT EXCHANGER HAVING SUCH TUBES AND METHOD OF OBTAINING SUCH TUBE.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2012000779A2 *

Also Published As

Publication number Publication date
US20140000853A1 (en) 2014-01-02
WO2012000779A3 (en) 2012-10-18
FR2962204B1 (en) 2014-11-21
PL2725317T3 (en) 2021-08-23
CN103080686A (en) 2013-05-01
CN103080685A (en) 2013-05-01
US20130192811A1 (en) 2013-08-01
WO2012000779A2 (en) 2012-01-05
WO2012000842A3 (en) 2013-01-10
FR2962204A1 (en) 2012-01-06
KR20180110189A (en) 2018-10-08
WO2012000842A2 (en) 2012-01-05
JP2013536390A (en) 2013-09-19
US10987720B2 (en) 2021-04-27
EP2588824B1 (en) 2019-07-31
KR102018675B1 (en) 2019-09-05
JP6069194B2 (en) 2017-02-01
JP5837582B2 (en) 2015-12-24
CN103080685B (en) 2015-05-06
EP2725317B1 (en) 2021-04-21
KR20130098292A (en) 2013-09-04
CN103080686B (en) 2016-03-02
PL2588824T3 (en) 2020-06-01
JP2013530373A (en) 2013-07-25
EP2725317A1 (en) 2014-04-30
US20170144212A1 (en) 2017-05-25
KR20130100245A (en) 2013-09-10
EP2588824A2 (en) 2013-05-08

Similar Documents

Publication Publication Date Title
EP2588825A2 (en) Heat exchanger tube, heat exchanger comprising such tubes and method for producing one such tube
EP2273224B1 (en) Heat exchange unit and corresponding heat exchanger, method of manufacturing a heat exchange unit
EP2715268B1 (en) Header box, heat exchanger comprising said header box and method of crimping such a box
EP2691722B1 (en) Heat exchanger tube, and corresponding heat exchanger production method
EP1668305A1 (en) Curved heat exchanger and production method thereof
FR3036468A1 (en) FLAT TUBE FOR THERMAL EXCHANGER
EP1579162B1 (en) Heat exchanger module and method of producing
EP3610212A1 (en) Heat exchanger tube and corresponding heat exchanger
EP1676088B1 (en) Hydraulic circuit element for a heat exchanger, and heat exchanger thus obtained
FR2832788A1 (en) Profile for tubes in heat exchangers used in motor vehicles, uses folded metal sheet to form tube and bends one edge over so that it rests on other wall of tube, providing strength to the tube during manufacture
WO2010119100A1 (en) Coolant circulation tube, heat exchange bundle, and heat exchanger comprising such tubes
FR2962202A1 (en) Fluidic circulation tube for heat exchanger defining condenser of air-conditioning loop of motor vehicle, has folds provided opposite to legs such that folds form connection reinforcement that is provided between legs and base part
WO2013127770A1 (en) Method of manufacturing a vehicle heat exchanger tube
WO2002086408A1 (en) Folded tube for a heat exchanger and method for the production thereof
FR2968754A1 (en) Heat exchanger tube i.e. condenser tube, for use in air conditioning system of cabin of car, has sacrificial channel provided at side of tube and bypassing fluid and closed with circulation of fluid
WO2013113700A1 (en) Heat exchanger tube, heat exchanger and corresponding production method
FR2962203A1 (en) Fluid circulation tube for heat exchanger of motor vehicle, has central part whose width is equal to sum of thicknesses of legs from safety distance to include dispersions of slope, where central part is perpendicular to base part
WO2018060625A1 (en) Heat exchanger, in particular for a motor vehicle
EP2691725A1 (en) Heat exchanger collector box, in particular for a motor vehicle, and corresponding heat exchanger
EP3566015A1 (en) Heat exchanger collector box, in particular for a motor vehicle, heat exchanger and corresponding manufacturing method
WO2007048826A2 (en) Collector box for a heat exchanger, particularly for a high-pressure fluid, exchanger comprising a box of this type and method for the production thereof
WO2013113698A1 (en) Heat exchanger tube, heat exchanger and corresponding production method
FR2815702A1 (en) Method for attaching reservoir to collector tube of heat exchanger comprises mechanical assembly of two components using ribs or crimps on reservoir which fit around tube, followed by welding
WO2007063083A1 (en) Header box for a heat exchanger, and exchanger comprising such a header box
FR2786559A1 (en) Heat exchanger for motor vehicle has parallel tubes each formed of folded and brazed metal sheets forming flanges for contact between tubes

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: 20121221

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

RIN1 Information on inventor provided before grant (corrected)

Inventor name: NAUDIN, YOANN

Inventor name: BAUERHEIM, ALAIN

Inventor name: METAYER, PHILIPPE

Inventor name: GAHON, KEVIN

Inventor name: MOREAU, LAURENT

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20160707

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20190103