EP0444595B1 - Echangeur de chaleur, en particulier refroidisseur d'huile pour véhicule automobile - Google Patents

Echangeur de chaleur, en particulier refroidisseur d'huile pour véhicule automobile Download PDF

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Publication number
EP0444595B1
EP0444595B1 EP91102802A EP91102802A EP0444595B1 EP 0444595 B1 EP0444595 B1 EP 0444595B1 EP 91102802 A EP91102802 A EP 91102802A EP 91102802 A EP91102802 A EP 91102802A EP 0444595 B1 EP0444595 B1 EP 0444595B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
seam
exchanger according
flat
flat tube
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
EP91102802A
Other languages
German (de)
English (en)
Other versions
EP0444595A1 (fr
Inventor
Herbert Dr. Damsohn
Walter Dipl.-Ing. Wolf
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 EP0444595A1 publication Critical patent/EP0444595A1/fr
Application granted granted Critical
Publication of EP0444595B1 publication Critical patent/EP0444595B1/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
    • 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
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
    • F28F3/046—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being linear, e.g. corrugations
    • 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
    • F28D1/0308—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other
    • F28D1/0325—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another
    • 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
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • F28F3/10—Arrangements for sealing the margins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2220/00—Closure means, e.g. end caps on header boxes or plugs on conduits

Definitions

  • the invention relates to a heat exchanger, in particular an oil cooler for motor vehicles, consisting of a plurality of flat tube sections through which a first heat exchange medium flows, which are closed on both sides by flat squeezing and / or by a flat squeezed standing seam and which are arranged in parallel with the interposition of fins like ribs and the second heat exchange medium flowing against them.
  • Heat exchangers of this type are known (DE-U-89 03 873).
  • the heat exchanger of this known type is produced in that a flat tube is bent in a zigzag or serpentine manner in such a way that the flat tube sections running between the bending points are parallel to one another.
  • the sealing of the flat tube sections which are provided through transverse bores with connection supports for the heat exchange medium, is achieved by squeezing the tube walls flat at the bending points on the one hand and at the two initially open ends of the tube by means of a squeezed standing seam. Sealing such standing seams creates certain difficulties, even when soldering is carried out.
  • a heat exchanger is also known, the tubes of which are arranged in rows and in parallel at a distance from one another.
  • the tubes are staggered in rows in suitable recesses of several plates arranged one behind the other.
  • a wave-shaped longitudinal rib is folded over towards the tube, which has the purpose of breaking up the outflow that occurs behind the tube into several narrow air streams, which are then alternately passed on to the adjacent tubes of the row of tubes behind them.
  • the sealing problem is not addressed there.
  • the invention has for its object to design a heat exchanger of the type mentioned in such a way that the end closure of the flat tubes is carried out without great effort, but in such a way that the tightness is guaranteed in any case.
  • a heat exchanger of the type mentioned at the outset that the standing seams arranged on the tube ends are provided with a shaft contour running in the longitudinal direction of the fold. This can be done in a simple manner after folding by means of an appropriate pressing tool which presses the standing seam into a corrugated contour. On the one hand, this configuration results in a very stable closing fold. It also ensures tightness because of the inherently stable fold, even when the heat exchanger is exposed to relatively strong mechanical loads during operation, as is the case when used for oil coolers for motor vehicles.
  • the embodiment according to claims 4 to 6 has the advantage that in the area of the openings for connecting serve the flat tubes with each other, no deformation or distortion occur.
  • the features of claim 7 ensure a particularly tight fold and the features of subclaim 8 outline advantageous options for arranging the position of the fold with respect to the flat tube.
  • a heat exchanger is schematically indicated in its basic structure, which is to be used for the oil cooler of a motor vehicle.
  • the heat exchanger (1) of Fig. 1 consists of several flat tubes (2) of a certain length, which are arranged parallel to each other with their larger areas and are stacked on top of each other in the finished state with the interposition of lamellar fin plates (3).
  • Each of the flat tubes (2) is provided in the region of its ends with an opening (4) through which, as indicated by the arrow (5), one of the heat exchange media, for example the oil to be cooled, into the interior via connecting pieces (not shown) of the flat tube (2) can be guided, which is also filled in a known manner with inserted turbulence plates (6).
  • each flat tube (2) is also connected to one another via intermediate sleeves, so that a heat exchange medium in the direction of the arrow (5) can enter all flat tubes and leave them again through an outlet connection connecting one of the opposite openings (4) .
  • a so-called finned tube block is formed, which is flowed in a known manner in the direction of arrow (7) across the flat tubes (2) with the second heat exchange medium, for example with cooling air can.
  • Each of the flat tubes (2) consists of a tube piece that is initially open at both ends. The ends are sealed in that the walls of the flat tubes (2) are each compressed and folded into a standing seam (8) which, as can be seen in particular from FIG. 2, has a wave-like contour.
  • This can be achieved in a simple manner, for example, by first following the upper wall (9) of the flat tube (2) in the end region (9a) according to FIG. 3 is pressed down to about the level of the lower wall (10) by a tool into which the flat tube is inserted.
  • the parts (10b and 9b) of the walls (10 and 9) are initially parallel to one another. They are then folded over to the standing seam (11), which is initially still flat, but has four times the thickness of the walls (9 and 10).
  • the standing seam (11) is then pressed together in a pressing tool, which has the shaft contour of the illustration in FIG. 2, in such a way that it reaches the approximately sinusoidal shaft contour shown in FIG has top (11 ') directed above. Since the corrugated contour is uniform, all apices (11 'and 11'') are seen over the entire length of the standing seam (11), each at the same distance from each other.
  • the height (a) which the standing seam (11) thus formed occupies is the same size across the width (b) (FIG. 1) of each flat tube (2). 2 and 3, the configuration has been carried out so that the center line (12) of the sinusoidal shape of the standing seam (11) coincides approximately with the center longitudinal plane (13) of the flat tubes (2).
  • the design in the embodiment according to FIGS. 5 and 6 is such that the standing seam (11), the contour of which otherwise corresponds to that of FIGS. 2 to 4, in relation to the central longitudinal plane (13) of each flat tube (2) it is arranged that the apexes (11 ') are affected by the central longitudinal plane (13). As a result, the apices (11 '') protrude clearly beyond the lower wall (10). The resulting fold (11) becomes very stable because it is pulled obliquely downwards, as shown in FIG. 6. The individual layers of the folded-over wall parts (9b, 10b) abut each other in all areas. This design can also be used so that the standing seam (11) is used for the axial guidance of the rib plates (3).
  • FIGS. 7 and 8 provides that the center line (12) of the sinusoidal shape of the standing seam (11) coincides approximately with the plane of the lower wall (10). This results in the fold shape shown in FIG. 8.
  • the embodiment of FIGS. 9 and 10 in turn provides that the standing seam (11) is shifted even further towards the center, but not yet as far as in FIGS. 2 and 3.
  • the center line (12) of the sinusoidal shape of the standing seam (11) lies somewhat above the inner surface of the lower wall (10).
  • All of the embodiments shown have the advantage of a very stable corrugated standing seam (11) which, as can be seen in each case from the sectional drawings in FIGS. 3, 4, 6, 8 and 10, also has very long sealing surfaces which are bent against one another and which have a good quality and enable permanent sealing of the flat tubes (2), in particular if soldering is subsequently carried out.

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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)

Claims (8)

  1. Echangeur de chaleur, en particulier radiateur à huile de véhicules automobiles, se composant de plusieurs éléments de tube plat (2) dans lesquels circule un premier fluide d'échange de chaleur, qui sont fermés des deux côtés par pincement et/ou par un sertissage pincé et qui sont disposés parallèlement les uns contre les autres avec interposition d'ailettes (3) en forme de lamelles qui sont balayées par le second fluide d'échange de chaleur, caractérisé en ce que les bords repliés (8) prévus aux extrémités des tubes ont un contour ondulé (11', 11'') dans la direction de la longueur du pli (11).
  2. Echangeur de chaleur selon la revendication 1, caractérisé en ce que chaque élément de tube plat consiste en un tube plat (2) fermé des deux côtés par un pli (11).
  3. Echangeur de chaleur selon la revendication 1, caractérisé en ce que le contour ondulé est sinusoïdal et comporte des sommets (11', 11'') qui sont placés à la même distance les uns des autres et qui ont la même amplitude.
  4. Echangeur de chaleur selon la revendication 1, caractérisé en ce que le contour ondulé a des pas différents et/ou des amplitudes différentes dans la direction de la longueur du pli (11).
  5. Echangeur de chaleur selon la revendication 4, caractérisé en ce que le pas est plus petit dans la partie médiane du pli (11) que dans les parties extérieures.
  6. Echangeur de chaleur selon les revendications 4 et 5, caractérisé en ce que l'amplitude (a) du contour ondulé est plus petite dans la partie médiane du pli (11) que dans les parties extérieures.
  7. Echangeur de chaleur selon la revendication 1, caractérisé en ce que chaque pli (11) a une épaisseur qui est le quadruple de celle de la cloison du tube plat (2).
  8. Echangeur de chaleur selon les revendications 1 et 3, caractérisé en ce que la ligne de symétrie (12) du profil sinusoïdal est située approximativement dans le plan médian longitudinal (13) du tube plat correspondant (2) ou est décalée vers un côté.
EP91102802A 1990-03-02 1991-02-26 Echangeur de chaleur, en particulier refroidisseur d'huile pour véhicule automobile Expired - Lifetime EP0444595B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9002440U 1990-03-02
DE9002440U DE9002440U1 (de) 1990-03-02 1990-03-02 Wärmetauscher, insbesonder Ölkühler für Kraftfahrzeuge

Publications (2)

Publication Number Publication Date
EP0444595A1 EP0444595A1 (fr) 1991-09-04
EP0444595B1 true EP0444595B1 (fr) 1994-05-04

Family

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Family Applications (1)

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EP91102802A Expired - Lifetime EP0444595B1 (fr) 1990-03-02 1991-02-26 Echangeur de chaleur, en particulier refroidisseur d'huile pour véhicule automobile

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EP (1) EP0444595B1 (fr)
DE (2) DE9002440U1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19605340C2 (de) * 1996-02-14 2000-11-09 Behr Gmbh & Co Wärmeübertrager und Verfahren zu seiner Herstellung
US7201216B2 (en) 2004-02-13 2007-04-10 Behr Gmbh & Co. Kg Heat exchanger, in particular oil cooler for a motor vehicle
US8891663B2 (en) 1996-10-29 2014-11-18 Qualcomm Incorporated Method and apparatus for providing high speed data communications in a cellular environment

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE515934C2 (sv) * 1994-07-12 2001-10-29 Valeo Engine Cooling Ab Förfarande för framställning av en värmeväxlare
DE4437877C2 (de) * 1994-10-22 1997-08-07 Behr Gmbh & Co Wärmetauscher, insbesondere Ölkühler
DE29712058U1 (de) * 1996-01-27 1998-04-02 Bayer, Joachim, 51503 Rösrath Kühlkörper zum Anbau an Halbleiterbauelemente sowie Teilprofile zur Herstellung solcher Kühlkörper
DE19723878B4 (de) * 1997-06-06 2007-10-25 Behr Gmbh & Co. Kg Wärmeübertrager
DE19753724A1 (de) * 1997-12-04 1999-06-10 Behr Gmbh & Co Wärmeübertrager
DE19755037A1 (de) * 1997-12-11 1999-06-17 Behr Gmbh & Co Wärmeübertrager und Verfahren zu seiner Herstellung
SE520703C2 (sv) * 2001-12-18 2003-08-12 Alfa Laval Corp Ab Värmeväxlarplatta med korrugerat stödområde, plattpaket samt plattvärmeväxlare
KR100537666B1 (ko) * 2003-06-27 2005-12-20 현대자동차주식회사 자동차의 오일쿨러
IT201800005663A1 (it) * 2018-05-24 2019-11-24 Dispositivo scambiatore termico
CN109612102A (zh) * 2018-12-17 2019-04-12 大连理工大学 一种换热片式快速高压气体预加热装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7129100U (de) * 1971-10-14 Siemens Ag Luft Luft-Kuhler
FR962385A (fr) * 1950-06-09
GB444964A (en) * 1934-09-27 1936-03-27 Edwin James Bowman Improvements in and relating to radiator tubes
FR1367685A (fr) * 1963-06-13 1964-07-24 M E T O Soc D Applic Mecanique Procédé de fabrication de radiateurs de chauffage central, et nouveaux types de radiateurs ainsi obtenus
FR2005480B1 (fr) * 1968-04-03 1973-11-16 Ass Eng Ltd
US4011905A (en) * 1975-12-18 1977-03-15 Borg-Warner Corporation Heat exchangers with integral surge tanks
US4084635A (en) * 1976-08-18 1978-04-18 Midland-Ross Corporation Heat recovery and heat distributing apparatus
IT1203212B (it) * 1978-12-27 1989-02-15 Piemontese Radiatori Scambiatore di calore particolarmente per il raffreddamento dell olio di lubrificazione di motori a combustione interna
US4298061A (en) * 1980-08-15 1981-11-03 The Singer Company Heat exchanger with crimped flange seam
DE3033413A1 (de) * 1980-09-05 1982-04-15 Malcolm Rex Walter Marleston South-Australia Heath Waermetauscher
DE8417650U1 (de) * 1984-06-09 1984-10-18 Bolin GmbH, 6000 Frankfurt Rekuperativer plattenwaermetauscher
FR2575279B1 (fr) * 1984-12-21 1989-07-07 Barriquand Echangeur a plaques

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19605340C2 (de) * 1996-02-14 2000-11-09 Behr Gmbh & Co Wärmeübertrager und Verfahren zu seiner Herstellung
US8891663B2 (en) 1996-10-29 2014-11-18 Qualcomm Incorporated Method and apparatus for providing high speed data communications in a cellular environment
US7201216B2 (en) 2004-02-13 2007-04-10 Behr Gmbh & Co. Kg Heat exchanger, in particular oil cooler for a motor vehicle
DE102004007510B4 (de) 2004-02-13 2019-08-14 Mahle International Gmbh Wärmeübertrager, insbesondere Ölkühler für Kraftfahrzeuge

Also Published As

Publication number Publication date
EP0444595A1 (fr) 1991-09-04
DE9002440U1 (de) 1990-05-03
DE59101527D1 (de) 1994-06-09

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