EP0591068A1 - Wärmetauscher mit aufgeweiteten Rohrenden - Google Patents

Wärmetauscher mit aufgeweiteten Rohrenden Download PDF

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Publication number
EP0591068A1
EP0591068A1 EP93402417A EP93402417A EP0591068A1 EP 0591068 A1 EP0591068 A1 EP 0591068A1 EP 93402417 A EP93402417 A EP 93402417A EP 93402417 A EP93402417 A EP 93402417A EP 0591068 A1 EP0591068 A1 EP 0591068A1
Authority
EP
European Patent Office
Prior art keywords
tube
heat exchanger
flare
exchanger according
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.)
Withdrawn
Application number
EP93402417A
Other languages
English (en)
French (fr)
Inventor
Gilbert Lelievre
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 Thermique Moteur SA
Original Assignee
Valeo Thermique Moteur SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Thermique Moteur SA filed Critical Valeo Thermique Moteur SA
Publication of EP0591068A1 publication Critical patent/EP0591068A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—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
    • F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05333—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel 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
    • 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
    • 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
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2230/00—Sealing means

Definitions

  • the invention relates to a heat exchanger intended in particular to form part of a motor vehicle to constitute either an engine cooling radiator or a cabin heating radiator.
  • a heat exchanger of the type comprising a collector plate provided with substantially circular holes as well as a bundle of tubes, in which each tube has an end of suitable shape, received in sealing in a hole in the collector plate, each tube end being provided with a flaring obtained by deformation of the wall of the tube.
  • the flaring of each end of the tube generally has the function of ensuring the retention of the collector plate on the tube bundle and of contributing to the sealing of the connection between the tube and the collector plate.
  • substantially circular is meant to specify that the holes in the collector plate - and therefore the sections of the tube ends - have a circular shape or else a shape very close to that of a circle. In the latter case, it is an oval or elliptical shape characterized by a major axis and a minor axis of symmetry, such that the ratio between the length of the major axis and the length of the minor axis is at most equal to 1 , 2.
  • the seal between each end of the tube and the collector plate is most often ensured by an elastomer seal comprising compressible collars, each of which is compressed between the end of the tube and a collar bordering the corresponding hole in the collector plate.
  • the end of substantially circular shape of the tube is provided with a flaring of homologous shape, that is to say substantially circular, extending over the entire periphery of the end of the tube.
  • the dimensions of the flare are generally close to those of the hole.
  • the invention proposes a heat exchanger of the type defined in the introduction, in which the flaring of each end of the tube has a polygonal shape defined by at least three sides connected in pairs by rounded tops.
  • such a tube in the work-hardened state has the advantage of being directly lubricated with stretching, which avoids an additional lubrication operation during the development of the heat exchanger bundle.
  • the flare has a polygonal shape with four sides.
  • the flare can have a square shape, in particular in the case where the end of the tube has a strictly circular shape.
  • the flare may include either a portion of wall with generatrix parallel to the axis of the tube, or a portion of generally frustoconical wall.
  • the invention applies very particularly to a heat exchanger comprising a compressible seal, for example made of elastomer, provided with compressible collars, each interposed between a collar bordering a hole in the collector plate and the end of the tube received. in the hole.
  • a compressible seal for example made of elastomer
  • the flaring of the end of the tube then serves as a flar for retaining the tube.
  • each tube of the bundle is made of a metal alloy, in particular of aluminum alloy, in the work hardened state.
  • the heat exchanger shown in Figures 1 and 2 comprises a header plate 10, a seal 12 and a bundle formed of a multiplicity of tubes 14 of respective parallel axes XX.
  • the tubes 14 are arranged in two parallel rows and they pass through a multiplicity of fins 16 extending perpendicular to the axes of the tubes.
  • the collector plate 10 comprises a core 18 of generally rectangular shape, through which are formed, in correspondence with the tubes 14 of the bundle, a multiplicity of holes 20 of circular shape, each of which is bordered by a collar 22 extending in the direction fins 16.
  • the collecting plate 12 has a peripheral rim 24 delimiting a peripheral groove 26 and forming a multiplicity of folding legs 28.
  • the compressible seal 12 advantageously made of an elastomeric material, comprises a core 30 applied against the core 18 of the collector plate 10 and provided with compressible collars 32 capable of being compressed each between a collar 22 of the collector plate and the end 34 of circular section of a tube 14.
  • the core 30 of the seal 12 is provided with a flange 36 received in the groove 26 of the collector plate and intended to be compressed by the peripheral edge (not shown) of a water box wall (not shown). The seal between the water box wall and the collector plate is ensured by compression of the flange 36 after folding the tabs 28, and this in a manner known.
  • Each compressible collar 32 is compressed between a collar 22 of the collector plate and the end 34 of a tube 14, which seals the connection between the collector plate and the bundle tubes.
  • each end 34 is provided with a flaring 38 ( Figures 1 and 2) obtained by deformation of the wall of the tube, in a radial direction relative to the axis XX, by means of a tool d suitable flare such as a punch (not shown).
  • Each of these flares is carried out on the side of the collector plate which carries the seal, that is to say on the side opposite to that facing the fins 3.
  • Each flare 38 has a polygonal shape, in the square example, defined by four sides 40 connected in pairs by rounded vertices 42.
  • the production of such a polygonal flare with rounded angles makes it possible to reduce the rate of elongation of the tube compared to the rate it would undergo if the flare had been circular, as in the prior art.
  • the tubes are advantageously formed from an aluminum alloy or from another ductile metal alloy.
  • the flare 38 comprises a wall portion 44 delimited by generatrices parallel to the axis XX of the tube and connected to the body of the tube by a shoulder 46.
  • the flare 38 makes it possible to retain the collector plate on the tube bundle 14.
  • the end 34 of a tube 14 has a flare 48 having a wall portion 50 of generally frustoconical shape.
  • the invention thus makes it possible to produce a heat exchanger in which the collector plate is perfectly held in position relative to the bundle of tubes.
  • flares described above are used above all for heat exchangers with mechanical assembly, but can also be used for brazed heat exchangers, in order to ensure the mechanical strength of the collector plate on the tube bundle, prior to the soldering operation.
  • each tube may comprise another non-polygonal flaring, produced in a manner known per se on the other side of the collector plate, relative to the side on which the tube ends open.
  • the invention is particularly applicable to heat exchangers of motor vehicles.

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)
EP93402417A 1992-10-02 1993-10-01 Wärmetauscher mit aufgeweiteten Rohrenden Withdrawn EP0591068A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9211679 1992-10-02
FR9211679A FR2696534B1 (fr) 1992-10-02 1992-10-02 Echangeur de chaleur à tubes munis d'un évasement.

Publications (1)

Publication Number Publication Date
EP0591068A1 true EP0591068A1 (de) 1994-04-06

Family

ID=9434066

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93402417A Withdrawn EP0591068A1 (de) 1992-10-02 1993-10-01 Wärmetauscher mit aufgeweiteten Rohrenden

Country Status (7)

Country Link
US (1) US5431218A (de)
EP (1) EP0591068A1 (de)
JP (1) JPH06194088A (de)
KR (1) KR100311834B1 (de)
BR (1) BR9303974A (de)
FR (1) FR2696534B1 (de)
MX (1) MX9306123A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4436027A1 (de) * 1994-10-08 1996-04-11 Behr Gmbh & Co Verfahren zum Herstellen einer dichten Verbindung
WO2017114089A1 (zh) * 2015-12-29 2017-07-06 江西鑫田车业有限公司 散热器

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7234511B1 (en) * 1995-06-13 2007-06-26 Philip George Lesage Modular heat exchanger having a brazed core and method for forming
FR2783907B1 (fr) * 1998-09-25 2000-12-22 Valeo Thermique Moteur Sa Echangeur de chaleur d'encombrement reduit, en particulier pour vehicule automobile
WO2005014199A1 (en) * 2003-08-12 2005-02-17 Alberto Sacristani Method and machinery for manufacturing a radiator element, radiator element and radiator
CA2443496C (en) * 2003-09-30 2011-10-11 Dana Canada Corporation Tube bundle heat exchanger comprising tubes with expanded sections
FR2977932A1 (fr) * 2011-07-12 2013-01-18 Valeo Systemes Thermiques Boite collectrice, echangeur thermique et procede d'assemblage correspondant
US8960525B2 (en) 2013-01-31 2015-02-24 General Electric Company Brazing process and plate assembly
FR3037643B1 (fr) * 2015-06-22 2019-07-12 Valeo Systemes Thermiques Echangeur de chaleur et procede de fabrication associe
DE102016207319A1 (de) * 2016-04-28 2017-11-02 Volkswagen Aktiengesellschaft Wärmetauscher und Verfahren zur Herstellung eines solchen Wärmetauschers
TWM550369U (zh) * 2017-07-25 2017-10-11 Cryomax Cooling System Corp 水管加強連結片組

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1137529A (fr) * 1954-09-04 1957-05-29 Ind Co Kleinewefers Konst Tube d'échangeur de chaleur moulé
DE1551448A1 (de) * 1967-02-17 1970-04-16 Daimler Benz Ag Waermetauscher,insbesondere fuer ortsbewegliche Gasturbinen
FR2093349A5 (de) * 1970-06-11 1972-01-28 Ferodo Sa
FR2304885A1 (fr) * 1975-03-19 1976-10-15 Togashi Akira Procede pour grouper et maintenir ensemble les extremites de plusieurs tubes conducteurs de chaleur et echangeur thermique realise par ce procede
FR2318399A2 (fr) * 1975-03-14 1977-02-11 Chausson Usines Sa Radiateur a elements assembles mecaniquement
EP0565813A1 (de) * 1992-04-16 1993-10-20 Längerer & Reich GmbH & Co. Wärmeaustauscher

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO141963L (de) * 1975-03-19
GB1533466A (en) * 1975-07-18 1978-11-22 Chausson Usines Sa Cooling or heating radiators
FR2467374A1 (fr) * 1979-10-12 1981-04-17 Ferodo Sa Dispositif d'assemblage etanche entre un collecteur et une boite a eau d'echangeur de chaleur
FR2570814B1 (fr) * 1984-09-25 1986-12-19 Valeo Echangeur de chaleur a faisceau de tubes, en particulier pour vehicule automobile
JPH0271097A (ja) * 1988-09-06 1990-03-09 Diesel Kiki Co Ltd 熱交換器
FR2676534B1 (fr) * 1991-05-14 1999-02-12 Valeo Thermique Moteur Sa Echangeur de chaleur a faisceau de tubes, en particulier pour vehicule automobile, et procede pour sa fabrication.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1137529A (fr) * 1954-09-04 1957-05-29 Ind Co Kleinewefers Konst Tube d'échangeur de chaleur moulé
DE1551448A1 (de) * 1967-02-17 1970-04-16 Daimler Benz Ag Waermetauscher,insbesondere fuer ortsbewegliche Gasturbinen
FR2093349A5 (de) * 1970-06-11 1972-01-28 Ferodo Sa
FR2318399A2 (fr) * 1975-03-14 1977-02-11 Chausson Usines Sa Radiateur a elements assembles mecaniquement
FR2304885A1 (fr) * 1975-03-19 1976-10-15 Togashi Akira Procede pour grouper et maintenir ensemble les extremites de plusieurs tubes conducteurs de chaleur et echangeur thermique realise par ce procede
EP0565813A1 (de) * 1992-04-16 1993-10-20 Längerer & Reich GmbH & Co. Wärmeaustauscher

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4436027A1 (de) * 1994-10-08 1996-04-11 Behr Gmbh & Co Verfahren zum Herstellen einer dichten Verbindung
WO2017114089A1 (zh) * 2015-12-29 2017-07-06 江西鑫田车业有限公司 散热器

Also Published As

Publication number Publication date
JPH06194088A (ja) 1994-07-15
KR940009651A (ko) 1994-05-20
KR100311834B1 (ko) 2001-12-17
FR2696534A1 (fr) 1994-04-08
US5431218A (en) 1995-07-11
FR2696534B1 (fr) 1994-12-02
MX9306123A (es) 1994-04-29
BR9303974A (pt) 1994-04-12

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