EP0326813B1 - Echangeur de chaleur, en particulier un refroidisseur eau-air en aluminium - Google Patents

Echangeur de chaleur, en particulier un refroidisseur eau-air en aluminium Download PDF

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Publication number
EP0326813B1
EP0326813B1 EP89100302A EP89100302A EP0326813B1 EP 0326813 B1 EP0326813 B1 EP 0326813B1 EP 89100302 A EP89100302 A EP 89100302A EP 89100302 A EP89100302 A EP 89100302A EP 0326813 B1 EP0326813 B1 EP 0326813B1
Authority
EP
European Patent Office
Prior art keywords
tube
heat exchanger
tubes
lugs
flat tubes
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
EP89100302A
Other languages
German (de)
English (en)
Other versions
EP0326813A1 (fr
Inventor
Gerhard Schwenk
Josef Kreutzer
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.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
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 Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP0326813A1 publication Critical patent/EP0326813A1/fr
Application granted granted Critical
Publication of EP0326813B1 publication Critical patent/EP0326813B1/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
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
    • 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
    • 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
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • F28F9/182—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding the heat-exchange conduits having ends with a particular shape, e.g. deformed; the heat-exchange conduits or end plates having supplementary joining means, e.g. abutments

Definitions

  • the invention relates to a heat exchanger according to the preamble of claim 1.
  • a heat exchanger with rectangular tubes (DE 26 24 879 A1) is known in which the tube ends are pressed into conical openings in tube sheets and are kept sealed by deforming elastic collars. To here from the collar To be able to compensate for the pressure exerted, reinforcements in the form of meandering strips are inserted into the pipe ends. Such a design is complex.
  • a heat exchanger of the type mentioned at the beginning with oval tubes is also known (EP 0 176 729 A1), in which the longer sides of the oval tubes are directed towards one another.
  • separate spacers are inserted into the tubes, which support the tube walls at least in the region of their broad sides. The insertion of separate spacers in the pipe ends is complex and also carries the risk that the spacers are not in the right place if the insertion is not carried out carefully.
  • the invention has for its object to design a heat exchanger of this type so that the collapse of the tubes can be avoided without the manufacturing effort being too great.
  • the support web can be produced in a particularly simple manner in this way.
  • the tabs can be punched out and bent in a simple manner by means of punching and shaping dies which, after the tubes have been drawn into their corresponding passages in the tube sheets, act on the ends of the tubes at the ends. A separate operation is not necessary for this.
  • the punching and bending of the tabs can be coupled with the cassette process, ie with the process of pulling the tubes into the tube sheet.
  • the pipe ends can be prepared accordingly using the appropriate cut and shape punches, which can be arranged in the bottom press-on receptacle, before the soldering process is carried out.
  • the tabs can be punched out of the opposite tube walls and bent against each other. In such an embodiment, it is expedient to provide the features of claim 3, because then the above-mentioned procedure for cassette is particularly simple.
  • Fig. 1 shows several flat tubes (1) which are arranged parallel to each other with their side surfaces to form a heat exchanger and are held at the ends in a tube sheet (3).
  • the tube sheet (3) which is preferably made of aluminum, is provided in a known manner with a circumferential flanged edge (7) into which the free edge of a hood-shaped water box, for example made of plastic, can be inserted tightly.
  • All flat tubes (1) have a very narrow, long one Flow cross-section whose width (a) (see FIG. 2) is in the order of a few millimeters, preferably even in the order of approximately 1 mm.
  • the flat tubes (1) are also made of aluminum.
  • the flat tubes (1) themselves, if it is a water / air cooler for a vehicle engine, as in the exemplary embodiment, are traversed by water, which is fed to one of the water boxes, not shown, and either deflected or diverted from the other water box.
  • the openings (2) designated as passages are slightly funnel-shaped from one side of the tube sheet (3).
  • the tube ends (1a) of the flat tubes (1) are pushed into these openings in a known manner. If all of the flat tubes (1) are "cassetted" by inserting their tube ends into the assigned tube sheets (3), then a cutting and shaping punch coupled to the tube sheet receptacle can be used in the middle _ in the plane (M) of FIG. 1 _ of the front end (1b) of the two opposite tube walls (4 and 4 ') are each punched out of a tab (6, 6').
  • the tabs (6, 6 ') are bent at the same time so that they lie against each other with their ends (6a and 6a'), (Fig. 3).
  • this measure creates support webs (5) in each flat tube (1), which lie in the middle (M) of the flat tubes (1) and which are used to stiffen the tube ends (1a) in the area of the tube sheets (3).
  • These support webs (5) prevent the subsequent appearance of the denting of the tube walls (4, 4 ') from occurring during the subsequent soldering process in which the tube ends (1a) are soldered to the tube sheets (3).
  • the flat tubes (1) can therefore be firmly and tightly connected to the tube sheet (3). The same applies to the tube sheet, not shown, assigned to the other tube ends.
  • the support web (5) is formed by two tabs bent inwards from opposite walls.
  • this embodiment is particularly simple in terms of production technology, it is of course also conceivable to form the support web only from one wall, for example by punching out and bending a tab.
  • Other possibilities are also conceivable, such as the arrangement of a plurality of support webs distributed over the pipe width. However, such measures require a greater manufacturing effort.

Landscapes

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

Claims (5)

1. Echangeur de chaleur, notamment radiateur eau/air en aluminium, se composant de plusieurs tubes non cylindriques, dont les grandes surfaces latérales sont orientées parallèlement entre elles et qui sont maintenus de façon étanche par leurs deux extrémités dans des ouvertures correspondantes de fonds à tubes, au moins une entretoise de maintien d'espacement (5) étant prévue entre les parois (4) des tubes (1) qui sont associées aux grandes parois latérales, échangeur caractérisé en ce que les tubes sont des tubes plats (1) comportant des parois (4) à peu près parallèles, en ce que l'entretoise de maintien d'espacement est agencée comme un chant de soutien (5) constitué par des rebords (6, 6′), et en ce que les rebords sont formés chacun par poinçonnage vers l'extérieur de la paroi (4) de tube à partir des côtés frontaux (2b) des tubes plats (1) et sont pliés vers l'intérieur dans la zone du plan des fonds à tubes (3).
2. Echangeur de chaleur selon la revendication 1, caractérisé en ce qu'un chant de soutien (5) est respectivement constitué par deux rebords (6, 6′) s'appliquant l'un contre l'autre par leurs côtés frontaux libres (6a, 6a′) et qui sont chacun formés par poinçonnage vers l'extérieur dans les parois mutuellement opposées (4, 4′) du tube.
3. Echangeur de chaleur selon la revendication 2, caractérisé en ce que les côtés frontaux (1b) des extrémités (la) des tubes dépassent des fonds à tubes (3) au moins de la moitié de la longueur (a) du chant de soutien (5).
4. Echangeur de chaleur selon une des revendications précédentes, caractérisé en ce que les rebords (6, 6′) sont disposés au milieu (M) des tubes plats (1).
5. Echangeur de chaleur selon une des revendications 1 à 4, caractérisé en ce que les extrémités de tubes (la) sont liées par brasage avec les fonds à tubes (3), et les côtés frontaux libres (6a, 6a′) des rebords (6, 6′) sont liés entre eux par brasage.
EP89100302A 1988-02-05 1989-01-10 Echangeur de chaleur, en particulier un refroidisseur eau-air en aluminium Expired - Lifetime EP0326813B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8801411U 1988-02-05
DE8801411U DE8801411U1 (de) 1988-02-05 1988-02-05 Wärmetauscher, insbesondere Wasser/Luft-Kühler aus Aluminium

Publications (2)

Publication Number Publication Date
EP0326813A1 EP0326813A1 (fr) 1989-08-09
EP0326813B1 true EP0326813B1 (fr) 1991-05-02

Family

ID=6820317

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89100302A Expired - Lifetime EP0326813B1 (fr) 1988-02-05 1989-01-10 Echangeur de chaleur, en particulier un refroidisseur eau-air en aluminium

Country Status (3)

Country Link
EP (1) EP0326813B1 (fr)
DE (2) DE8801411U1 (fr)
ES (1) ES2021886B3 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8801411U1 (de) * 1988-02-05 1988-03-24 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart Wärmetauscher, insbesondere Wasser/Luft-Kühler aus Aluminium
DE3900744A1 (de) * 1989-01-12 1990-07-26 Sueddeutsche Kuehler Behr Waermetauscher
DE4015830C2 (de) * 1990-05-17 2000-10-12 Behr Gmbh & Co Wärmetauscher, insbesondere Wasser/Luft-Kühler
DE4129573C2 (de) * 1991-09-06 1997-10-23 Behr Gmbh & Co Wärmetauscher
DE9203734U1 (de) * 1992-03-19 1993-07-15 FAIST Automotive GmbH & Co. KG, 86381 Krumbach Thermisch isolierendes Schichtstoffelement
DE9309822U1 (de) * 1993-07-01 1994-11-10 Thermal-Werke, Wärme-, Kälte-, Klimatechnik GmbH, 68766 Hockenheim Wasser/Luft-Wärmetauscher aus Aluminium für Kraftfahrzeuge
DE4343825A1 (de) * 1993-12-22 1995-06-29 Behr Gmbh & Co Rohr-Bodenverbindung für einen Wärmetauscher
JPH08327283A (ja) * 1995-05-30 1996-12-13 Sanden Corp 熱交換器の熱交換チューブ接合構造
FR2750485B1 (fr) * 1996-06-28 1998-09-04 Valeo Thermique Moteur Sa Liaison tubes-collecteur a etancheite amelioree pour radiateur de vehicule
ES2153262B1 (es) * 1997-10-08 2001-09-01 Radiadores Ordonez S A Procedimiento para evitar la deformacion de tubos planos en la fabricacion de radiadores para automoviles.
JP2001248988A (ja) * 2000-03-06 2001-09-14 Mitsubishi Heavy Ind Ltd 熱交換器
DE102011052128A1 (de) * 2011-07-26 2013-01-31 Ventops UG ( haftungsbeschränkt) Kühler, insbesondere für Elektromotoren oder Windkraftgeneratoren sowie Verfahren zur Herstellung eines Kühlmoduls für einen Kühler
CN110553533A (zh) * 2019-09-11 2019-12-10 上海蓝滨石化设备有限责任公司 一种铝制式空冷器多孔扁管与管板的连接结构

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2273222B1 (fr) * 1974-05-30 1977-10-07 Chausson Usines Sa
FR2304049A1 (fr) * 1975-03-14 1976-10-08 Chausson Usines Sa Radiateur a elements assembles mecaniquement
US4513811A (en) * 1983-09-09 1985-04-30 Ex-Cell-O Corporation Heat exchanger
DE3432073A1 (de) * 1984-08-31 1986-03-06 Dirk Dipl.-Wirtsch.-Ing. 3500 Kassel Pietzcker Waermetauscher, insbesondere fuer kraftfahrzeuge, und vorrichtung und verfahren zum verbinden von dessen rohren und lamellen
DE8801411U1 (de) * 1988-02-05 1988-03-24 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart Wärmetauscher, insbesondere Wasser/Luft-Kühler aus Aluminium

Also Published As

Publication number Publication date
DE58900097D1 (de) 1991-06-06
EP0326813A1 (fr) 1989-08-09
ES2021886B3 (es) 1991-11-16
DE8801411U1 (de) 1988-03-24

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