EP0565813B1 - Echangeur de chaleur - Google Patents

Echangeur de chaleur Download PDF

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Publication number
EP0565813B1
EP0565813B1 EP93100594A EP93100594A EP0565813B1 EP 0565813 B1 EP0565813 B1 EP 0565813B1 EP 93100594 A EP93100594 A EP 93100594A EP 93100594 A EP93100594 A EP 93100594A EP 0565813 B1 EP0565813 B1 EP 0565813B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
sealing
triangular
base plate
exchanger according
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.)
Expired - Lifetime
Application number
EP93100594A
Other languages
German (de)
English (en)
Other versions
EP0565813A1 (fr
Inventor
Wolfgang Dipl.-Ing. Knecht (Fh)
Roland Dipl.-Ing. Strähle (FH)
Gerhard Weiss
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.)
Laengerer and Reich GmbH and Co
Original Assignee
Laengerer and Reich GmbH and Co
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 Laengerer and Reich GmbH and Co filed Critical Laengerer and Reich GmbH and Co
Publication of EP0565813A1 publication Critical patent/EP0565813A1/fr
Application granted granted Critical
Publication of EP0565813B1 publication Critical patent/EP0565813B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/165—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by using additional preformed parts, e.g. sleeves, gaskets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05383—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits
    • 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
    • Y10T29/49373—Tube joint and tube plate structure
    • Y10T29/49375—Tube joint and tube plate structure including conduit expansion or inflation
    • 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
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49938—Radially expanding part in cavity, aperture, or hollow body
    • Y10T29/4994—Radially expanding internal tube

Definitions

  • the invention relates to a heat exchanger mentioned in the preamble of claim 1.
  • Heat exchangers of this type are known (EP-A1-0387678), in which oval tube ends are connected to the base plates by widening the oval to form another oval. Even if the base plates are provided with collars projecting to one side in the area of their openings in order to enlarge the contact surface, these heat exchangers have the disadvantage that the base plates have a relatively low bending stiffness. It is therefore necessary to choose a relatively large material thickness for the base plates, which increases the weight of the entire heat exchanger. To increase the bending stiffness, steel is also used as the material for the base plates, which must be provided with a corrosion protection layer. This creates recycling problems, apart from the fact that such materials are relatively expensive.
  • Heat exchangers are known (CH-A-259 213, US-A 14 50 399), in which the tubes have a triangular cross section, the triangular shape and the dimensions unchanged over the entire length of the tube. Baffles sit on the pipes and are attached to the pipes by welding or soldering. As far as the heat exchanger has tanks on both sides, which are provided with base plates (US-A 14 50 399), the pipe ends are connected to these plates by soldering.
  • the invention has for its object to provide a heat exchanger of the type mentioned, in which the base plate has a greater bending stiffness and can thus be made smaller in cross-sectional thickness and lighter in terms of material and from such that does not require a special corrosion protection layer.
  • a positive installation position is predetermined.
  • the triangular contour of the pipe ends advantageously leads to a more stable and stiffer transition area to the oval area of the pipe towards the heat exchanger network. Forces and other stresses that occur during assembly and operation are safely guided out of this sensitive area.
  • the triangular contour absorbs shear forces better. It is achieved by the features in claim 6 that more openings can be provided in a space-saving manner in the base plates and thus the number of tubes can be increased considerably with the same dimensions of the base plates, which entails an increase in the heat exchange performance the dimensions of the base plate are reduced and more compact heat exchangers are designed.
  • the invention further relates to a method according to claims 19 to 23.
  • the additional, approximately tulip-shaped widenings result in funnel-like cross-sectional widenings, by means of which inflow pressure loss portions are advantageously reduced are, so that the highest possible mass flow rate of the cooling medium can be achieved with a small pump output.
  • the tubes with these tube ends act like tension struts on the base plates, since the oblique tube wall regions, formed by the tulip-shaped additional widening, bring about a normal force on the base plate via the sealing element. Additional tools for securing the position, e.g. B. attached laterally to the heat exchanger network support, frame or the like., Which are connected to the base plate or the lid, collecting tank, water tank or the like. Are therefore unnecessary.
  • a heat exchanger 10 is shown schematically, the z. B. as a cooler, especially water cooler, od. Like. Can be used.
  • the heat exchanger 10 has a only schematically indicated heat exchanger network 11, which is formed from a plurality of tubes 12 which, for. B. have an oval cross section according to FIG. 2.
  • the heat exchanger network 11 also has a number z. B. approximately plate-shaped baffles 13, which run approximately parallel to each other and at a distance from each other and each contain the corresponding tubes 12 oval openings that of the Tubes 12 are interspersed. The openings can be extended by coaxial collars, not shown, which enlarge the contact surface of the tubes 12.
  • oval tubes 12 are connected to the baffles 13 in that the tubes 12 are inserted into a packet of baffles 13 and then the oval tubes are expanded from the inside, so that a firm clamp connection is formed.
  • the tubes 12 can be expanded, for example, so that their large diameter and their small diameter is enlarged, z. B. the diameter ratio in the order of about 3.8: 1 is reduced to a diameter ratio in the order of 3.6: 1.
  • the heat exchanger 10 also has at least one base plate, in the exemplary embodiment shown in FIG. 1 an upper base plate 14 and a lower base plate 15, which are in each case of the same design, for which reason further details are only explained below using the example of the upper base plate 14.
  • Both base plates 14, 15 are fastened to the facing ends of the tubes 12 by widening these ends and are thus permanently and tightly connected.
  • Each base plate 14, 15 is tightly connected to the cover 16 or 17 of a collecting tank in a conventional manner.
  • the tubes 12, the baffles 13 and at least the base plates 14 and 15 are made, for. B. made of aluminum.
  • the permanently firm and tight connection between the base plates 14, 15 and the ends of the tubes 12 is achieved solely by clamping and thus without the need for a soldering process.
  • the base plate 14 has a large number of openings 18, each of which is approximately triangular. It can be particularly advantageous be that each base plate 14, 15, as shown in FIGS. 6 to 8 for the base plate 14, has in the area of the openings 18 protruding collars 19 which are also approximately triangular in cross section.
  • the collar 19 are z. B. facing the heat exchanger network 11. They are an integral part of the base plate 14 and z. B. designed as swaths.
  • the collars 19 are omitted, so that the base plates 14, 15 only have openings 18 extending over the cross-sectional thickness and not those which, according to FIGS.
  • the base plate 14 contains two approximately parallel rows of approximately triangular openings 18. These two rows are offset from one another in the longitudinal direction by a half opening 18. In each of these two rows, openings 18 offset with respect to one another in the circumferential direction follow one another alternately with one corner of the triangle. So z. 6, the opening 18 on the right in FIG. 6 with the corner of the triangle in FIG. 6 downwards, while the opening 18 next in the row points upwards with the corner of the triangle. This allows one in the base plates 14, 15 accommodate a larger number of openings 18, so that the heat exchanger 10 has the same dimensions, a larger number of tubes 12 and thus a greater performance.
  • the overall dimensions can be reduced and thus more compact heat exchanger 10 can be designed.
  • the overall dimensions can be reduced and thus more compact heat exchanger 10 can be designed.
  • the two rows of openings 18 according to FIG. 6 instead of the two rows of openings 18 according to FIG. 6, only one row of such openings 18 is provided, or instead three or more rows of such openings 18 are also present.
  • the ratio of the height A to the base B of the triangle of each opening 18 of the base plate 14 is greater than 1 and is, for. B. on the order of 1.01 to 1.1.
  • the respective triangular shape of the openings 18 is z. B. formed by approximately isosceles triangles, the triangles are rounded in the respective corner area.
  • the base plates 14 and 15 are also provided on the side facing away from the heat exchanger network 11 with sealing elements, of which only the sealing elements 20 of the upper base plate 14 are shown in the drawings.
  • the sealing elements 20 have through openings 21 aligned with the respective openings 18, which in the finished state of the heat exchanger 10 according to FIG. 8 are provided with sealing collars 23 which are located in the openings 18 and surround the pipe ends 22 and which are integral parts of the sealing elements 20.
  • the sealing elements 20 are advantageously formed in one piece, for example on a sealing plate 24 which completely covers the base plate 14 or on several small plates.
  • the individual through openings 21 of the sealing elements 20, like the openings 18, are also approximately triangular.
  • the sealing collars 23 of the sealing elements 20 can also have an approximately triangular cross section.
  • the sealing collars 23 engage, which are essentially of the same shape as the openings 18, for. B. the inner contour of the collar 19, are in the openings 18 form-fitting.
  • the triangular shape of the through openings 21, in particular sealing collar 23, is chosen in adaptation to that of the openings 18 so that the through openings 21 z. B. have approximately the shape of an isosceles triangle with preferably rounded corners.
  • Each sealing collar 23 projects beyond the collar 19 of the base plate 14 penetrated therefrom. This projecting edge section 25 is directed towards the outside according to FIGS. 4, 5 and 7.
  • the external dimensions of the sealing collar 23 of each sealing element 20 correspond at least substantially to the internal dimensions of the respective opening 18, in particular of the collar 19, of the base plate 14.
  • the ratio of the height A to the base B of the triangle of each through opening 21 of the sealing elements 20 in the undeformed state according to FIGS. 3 and 7 can be greater than 1, for. B. are in the order of 1.01 to 1.1.
  • the sealing elements 20 contain, on the side opposite the sealing collar 23, a circumferential recess 26 which runs approximately triangularly along a triangular line which follows the triangular outer contour of the sealing collar 23. In the state of the sealing elements 20 which has not yet been compressed by widening the pipe ends 22, the depression 26 still has its original width, as shown in FIG. 7.
  • the recess 26 After expanding the pipe ends 22 and pressing the sealing elements 20, however, the recess 26 has almost disappeared, as shown in FIG. 8.
  • the recess 26 enables the adjoining upper edge region of the sealing element 20, which is located between the inserted pipe end 22 and the recess 26, to give way when the pipe end 22 is expanded and the sealing elements 20 are pressed, and to emigrate to the outside.
  • the tubes 12, which are oval in the area of the heat exchanger network 11, have tube ends 22, the cross section of which is approximately triangular. These triangular tube ends 22 have been produced by shaping the oval tube ends of the heat exchanger network 11 produced into a triangular shape. With this reshaping, the large diameter of the oval tube can be significantly reduced to the height A of the tube ends 22, which are approximately triangular in cross section, and the small diameter of the oval tubes can be increased significantly to the basic dimension B, the value for the base B being z. B. twice can be up to 2.5 times the small diameter of the oval tube. The large diameter, which becomes the height A of the triangular tube ends 22, can, for. B. can be reduced by a factor of 0.7 to 0.75.
  • FIG. 10 Such a widened tube end 22, in which the triangular cross section of this tube end is retained, is shown in FIG. 10. which is designated with 27 in FIG. 9 with regard to all three triangular sides. If all three triangular sides are additionally widened and bulged from the inside to the outside in this way, the result is an approximately tulip-shaped shape.
  • the cross-sectional change and subsequent widening of the pipe ends 22 is carried out so that, starting from an oval cross section with a diameter ratio of at least 3: 1, the triangular and widened pipe ends 22 have a ratio of the height A to the base B of z. B. 1.05: 1 to 1.1: 1.
  • the bending rigidity of the base plates 14, 15 is significantly increased.
  • aluminum can be used instead of steel due to the increased bending stiffness for the base plates 14, 15. This also leads to a reduction in weight.
  • base plates 14, 15 made of aluminum are not at risk of corrosion, so that a corrosion protection coating which is otherwise necessary for the design of these steel base plates, which is not only expensive but also causes recycling problems, is unnecessary. Therefore, there are also advantageous recycling properties for the heat exchanger 10.
  • the triangular through openings 21, in particular sealing collars 23, of the sealing elements 20 have the advantage that the sealing elements 20 thereby have a greater dimensional stability. This results in an easy and secure mounting of the sealing elements 20 in the respective base plate 14, 15.
  • the fact that both the openings 18 and the sealing collar 23 have an approximately triangular shape means that the mounting position is given in a form-fitting manner and is thereby also facilitated.
  • the triangular contour of the pipe ends 22 also has the advantage that it can absorb transverse forces better.
  • the pipe ends widened in the manner described act as tension struts on the base plates 14, 15, since the oblique pipe wall regions produced by the bulges 27, of which one can be seen in FIG. 8 on the right, via the respective sealing element 20 exert a normal force on the respective base plate 14, 15. Additional measures for securing the position of the respective base plate 14, 15 with attached cover 16 or 17 with respect to the heat exchanger network 11 formed from the tubes 12 and guide plates 13 can thus be superfluous. So z. B. on the side of the heat exchanger network 11 attached frame or the like., Which are connected to the base plates 14, 15 or the covers 16, 17, as auxiliary measures to secure the position for the reasons mentioned are completely dispensed with.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Power Steering Mechanism (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)

Claims (23)

  1. Echangeur de chaleur comprenant un réseau d'échangeurs de chaleur (11), présentant un grand nombre de tubes (12), et au moins une plaque de base (14, 15), qui est fixée aux extrémités des tubes (22) par l'élargissement de ceux-ci et qui présente un grand nombre d'ajours (18) et, en outre, d'éléments d'étanchéité (20) donc les orifices de passage (21) sont orientés vers les ajours (18), lesdits orifices de passage sont munis de collets d'étanchéité (23) placés dans les ajours (18) et enveloppant les extrémités de tubes (22) qui traversent lesdits ajours,
    caractérisé en ce que les ajours (18) de la plaque de base (14, 15) ont à peu près la forme d'un triangle et que les extrémités de tubes (22) ont été formées en triangle.
  2. Echangeur de chaleur selon la revendication 1, caractérisé en ce que les orifices de passage (21) des éléments d'étanchéité (20) ont à peu près la forme d'un triangle.
  3. Echangeur de chaleur selon la revendication 1 ou 2, caractérisé en ce que les collets d'étanchéité (23) des éléments d'étanchéité (20) ont une section à peu près triangulaire.
  4. Echangeur de chaleur selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la plaque de base (14) présente dans la zone des ajours (18) des collerettes (19) en saillie d'un côté, dont la section est à peu près triangulaire.
  5. Echangeur de chaleur selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la plaque de base (14) contient au moins une série d'ajours (18) à peu près triangulaires, dans laquelle chaque ajour (18) alterne avec l'autre, le sommet de chaque triangle étant décalé de 180° par rapport à l'autre dans le sens périphérique.
  6. Echangeur de chaleur selon la revendication 5, caractérisé en ce que la plaque de base (14) contient deux séries parallèles d'ajours (18) à peu près triangulaires, qui, en sens long, sont décalés l'un par rapport à l'autre d'un demi-ajour (18).
  7. Echangeur de chaleur selon l'une quelconque des revendications 1 à 6, caractérisé en ce que les éléments d'étanchéité sont agencés dans une plaque d'étanchéité (24), recouvrant totalement ou partiellement la plaque de base (14), dont les collets d'étanchéité ont une section à peu près triangulaire identique à celle des ajours (18) dans lesquels ils s'engagent.
  8. Echangeur de chaleur selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le côté des éléments d'étanchéité (20) opposé aux collets d'étanchéité (23) est formé d'une bosse (25) périphérique, qui s'étend à peu près le long d'une ligne triangulaire qui suit le contour extérieur triangulaire du collet d'étanchéité (23).
  9. Echangeur de chaleur selon l'une quelconque des revendications 1 à 8, caractérisé en ce que chaque collet d'étanchéité (23) avance au-dessus de la collerette (19) qu'il traverse.
  10. Echangeur de chaleur selon l'une quelconque des revendications 1 à 9, caractérisé en ce que l'extrémité (25) de chaque collet d'étanchéité (23), déformé de l'intérieur vers l'extérieur en évasant l'extrémité du tube (22) qui le traverse et serré contre l'ajour (18), contre la collerette (19) de celui-ci, par exemple, s'avance au-dessus du bord de l'ajour (18), en particulier de la collerette (19).
  11. Echangeur de chaleur selon l'une quelconque des revendications 1 à 10, caractérisé en ce que les dimensions extérieures du collet d'étanchéité (23) coïncident, au moins sensiblement, avec les dimensions intérieures de l'ajour (18), en particulier de la collerette (19), de la plaque de base (14).
  12. Echangeur de chaleur selon l'une quelconque des revendications 1 à 11, caractérisé en ce que les ajours (18) de la plaque de base (14) et/ou les orifices de passage (21) des éléments d'étanchéité (20) présentent à peu près la forme d'un triangle équilatéral, de préférence avec les sommets arrondis.
  13. Echangeur de chaleur selon l'une quelconque des revendications 1 à 12, caractérisé en ce que le rapport de la hauteur (A) sur la base (B) du triangle formé par chaque ajour (18) de la plaque de base (14) est supérieur à 1 ; il se situe, par exemple, dans un ordre de grandeur compris entre 1,01 et 1,1.
  14. Echangeur de chaleur selon l'une quelconque des revendications 1 à 13, caractérisé en ce que le rapport de la hauteur (A) sur la base (B) du triangle formé par chaque crifice de passage (21) de l'élément d'étanchéité (20) non déformé est supérieur à 1 ; il se situe, par exemple, dans un ordre de grandeur entre 1,01 et 1,1.
  15. Echangeur de chaleur selon l'une quelconque des revendications 1 à 14, caractérisé en ce que les tubes (12) présentent une section ovale et les extrémités des tubes (22) sont formées en triangle.
  16. Echangeur de chaleur selon l'une quelconque des revendications 1 à 15, caractérisé en ce que les extrémités des tubes (22) qui traversent les orifices de passage (21) des éléments d'étanchéité (20) sont évasées de l'intérieur vers l'extérieur tout en conservant leur forme triangulaire, de telle sorte que chaque élément d'étanchéité (20) est comprimé d'environ 30 à 50 % ou davantage.
  17. Echangeur de chaleur selon l'une quelconque des revendications 1 à 16, caractérisé en ce que les extrémités des tubes (22) qui traversent les orifices de passage (21) des éléments d'étanchéité (20) et qui sont évasées de l'intérieur vers l'extérieur tout en conservant leur forme triangulaire continuent à être évasés ou bombés de l'intérieur vers l'extérieur pratiquement dans la zone du milieu de la longueur, du moins d'un côté du triangle.
  18. Echangeur de chaleur selon l'une quelconque des revendications 1 à 17, caractérisé en ce que les extrémités des tubes (22) qui traversent les orifices de passage (21) des éléments d'étanchéité (20) et qui sont évasées de l'intérieur vers l'extérieur tout en conservant leur forme triangulaire et continuent à être évasés ou bombés en forme de U de l'intérieur vers l'extérieur à peu près dans la zone du milieu de la longueur des trois côtés du triangle.
  19. Procédé destiné à fixer étroitement une plaque de base sur un réseau d'échangeurs de chaleur (11), destiné à la fabrication d'un échangeur de chaleur selon la revendication 1, la plaque de base (14, 15) présentant un grand nombre d'ajours (18) triangulaires et en outre d'éléments d'étanchéité (20) ccmprenant des orifices de passage (21) orientés vers les ajours (18) et des collets d'étanchéité (23) placés dans les ajours (18), le réseau d'échangeurs de chaleur (11) présentant un grand nombre de tubes (12) dont les extrémités pénètrent dans les orifices de passage (21) et qui, par leur élargissement, sont serrées étroitement dans tous les sens, par rapport au sens long, contre les collets d'étanchéité (23), les sections des extrémités des tubes étant refaçonnées suivant un contour à peu triangulaire avant leur insertion dans la plaque de base (14, 15) et élargies de manière à peu près triangulaire après leur insertion.
  20. Procédé selon la revendication 19, caractérisé en ce que les extrémités des tubes sont refaçonnées en triangle par l'insertion d'un mandrin avec ou sans maintien.
  21. Procédé selon la revendication 19 ou 20, caractérisé en ce que les extrémités des tubes (22) pratiquement triangulaires insérées sont élargies en forme de U.
  22. Procédé selon la revendication 21, caractérisé en ce que l'élargissement en U est réalisé après l'élargissement en triangle ou en même temps que cette dernière, dans une opération de travail, par exemple.
  23. Procédé selon l'une quelconque des revendications 19 à 22, caractérisé en ce que la modification de la section et l'élargissement consécutif des extrémités de tubes (22) sont réalisés de telle sorte que, partant d'une section ovale avec un rapport de diamètre d'au moins 3:1, les extrémités de tubes (22) triangulaires et évasées présentent un rapport de la hauteur (A) sur la base (B) d'environ 1,05:1 jusqu'à 1,1:1.
EP93100594A 1992-04-16 1993-01-16 Echangeur de chaleur Expired - Lifetime EP0565813B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4212717 1992-04-16
DE4212717A DE4212717A1 (de) 1992-04-16 1992-04-16 Wärmeaustauscher

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EP0565813A1 EP0565813A1 (fr) 1993-10-20
EP0565813B1 true EP0565813B1 (fr) 1996-04-03

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EP93100594A Expired - Lifetime EP0565813B1 (fr) 1992-04-16 1993-01-16 Echangeur de chaleur

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US (2) US5345674A (fr)
EP (1) EP0565813B1 (fr)
JP (1) JPH07260394A (fr)
AT (1) ATE136362T1 (fr)
DE (2) DE4212717A1 (fr)

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EP0845647A1 (fr) 1996-11-27 1998-06-03 Behr GmbH & Co. Echangeur de chaleur à tubes plats avec extrémité de tubes déformée par torsion

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GB9523795D0 (en) * 1995-11-21 1996-01-24 Alcan Int Ltd Heat exchanger
DE19733473C2 (de) * 1997-08-02 2000-07-06 Daimler Chrysler Ag Verfahren und Vorrichtung zur Herstellung einer Anbindung eines lambda-Sondenhalters an ein Abgasrohr
FR2810730B1 (fr) * 2000-06-21 2003-09-26 Valeo Thermique Moteur Sa Echangeur de chaleur, notamment pour vehicule automobile
US20020098056A1 (en) * 2001-01-22 2002-07-25 Progressive Stamping Company, Inc. Method of attaching a plate to a rod and assembly
CA2363279C (fr) * 2001-11-16 2012-11-06 Utar Scientific Inc. Memoire de donnees holographiques multi-couches de guide d'ondes
ES2302089T3 (es) * 2005-03-31 2008-07-01 Frape Behr S.A. Intercambiador de calor, en particular condensador para instalacion de climatizacion.
DE102008032287B4 (de) * 2008-04-30 2012-09-27 Modine Manufacturing Co. Wärmetauscher mit einerKlebeverbindung, sowie Verfahren zur Herstellung eines Wärmetauschers
US20120085522A1 (en) * 2010-10-06 2012-04-12 Carrier Corporation Heat Exchanger System
FR3037643B1 (fr) * 2015-06-22 2019-07-12 Valeo Systemes Thermiques Echangeur de chaleur et procede de fabrication associe
FR3054652B1 (fr) * 2016-07-29 2019-07-05 Valeo Systemes Thermiques Boite collectrice, moyen d’etancheite et echangeur thermique correspondant
FR3056735B1 (fr) * 2016-09-28 2020-10-23 Valeo Systemes Thermiques Echangeur thermique, notamment pour vehicule automobile
CN108321328B (zh) * 2018-01-29 2021-04-09 奥美森智能装备股份有限公司 一种电池支架制造方法
EP3760962B1 (fr) * 2019-07-05 2023-08-30 UTC Aerospace Systems Wroclaw Sp. z o.o. Échangeur de chaleur

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Publication number Priority date Publication date Assignee Title
EP0845647A1 (fr) 1996-11-27 1998-06-03 Behr GmbH & Co. Echangeur de chaleur à tubes plats avec extrémité de tubes déformée par torsion

Also Published As

Publication number Publication date
ATE136362T1 (de) 1996-04-15
DE4212717A1 (de) 1993-10-21
US5456311A (en) 1995-10-10
EP0565813A1 (fr) 1993-10-20
DE59302086D1 (de) 1996-05-09
US5345674A (en) 1994-09-13
JPH07260394A (ja) 1995-10-13

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