EP0664428A1 - Wärmetauscher, Verfahren zu dessen Herstellung und Wärmetauscher mit solchen Röhren - Google Patents

Wärmetauscher, Verfahren zu dessen Herstellung und Wärmetauscher mit solchen Röhren Download PDF

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Publication number
EP0664428A1
EP0664428A1 EP95100616A EP95100616A EP0664428A1 EP 0664428 A1 EP0664428 A1 EP 0664428A1 EP 95100616 A EP95100616 A EP 95100616A EP 95100616 A EP95100616 A EP 95100616A EP 0664428 A1 EP0664428 A1 EP 0664428A1
Authority
EP
European Patent Office
Prior art keywords
tube
jaw
heat exchanger
faces
section
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.)
Ceased
Application number
EP95100616A
Other languages
English (en)
French (fr)
Inventor
Philippe Le Gauyer
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 EP0664428A1 publication Critical patent/EP0664428A1/de
Ceased 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
    • F28D1/0535—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
    • 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
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • 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
    • F28F1/025—Tubular elements of cross-section which is non-circular with variable shape, e.g. with modified tube ends, with different geometrical features

Definitions

  • the invention relates to a heat exchanger tube, in particular for a motor vehicle, a method for its conformation and a heat exchanger comprising such tubes.
  • a heat exchanger tube comprising a body of oblong section delimited by two large faces and by two small faces, one end of oblong section delimited by two large faces and by two small faces, a transition part connecting the body and the end, the body section having a length and a width respectively greater and less than the length and the width of the section of the end.
  • the large faces of the body and the end can be flat or slightly curved, while the small faces of the body and those of the end are generally semi-circular or else flat, in which case this small flat face is connected by two rounds of small radius of curvature with the two large faces.
  • These tubes are arranged in a conventional manner to form a bundle provided with fins and intended to be swept by an air flow.
  • the oblong shape of the body facilitates the passage of air and reduces pressure losses compared to conventional round tube heat exchangers.
  • the ends of the tubes have a less oblong cross-section than that of the body to facilitate mounting of the tube ends on a collecting plate, or "plate with holes", crossed by these ends.
  • the tubes can be arranged in pairs and in two rows, the ends of the tubes of the same pair being received in the same hole of the collector plate.
  • One of the problems posed by the production of the tubes of the type defined above, is that of their conformation, in particular as regards the transition part.
  • transition part is as short as possible, in the axial direction of the tube, since the fins of the heat exchanger are located only at the body of the tubes.
  • the object of the invention is in particular to propose a heat exchanger tube of the aforementioned type which can be produced with a shaping device of simple structure and which makes it possible to minimize the length of the transition part, in the axial direction of the tube. .
  • the invention proposes for this purpose a heat exchanger tube of the type defined in the introduction, in which the transition part comprises two inclined faces connecting the large faces of the body and the large faces of the end and at least one curved face. connecting a small face of the body and a small end face, on the one hand, and the large faces of the body, on the other hand.
  • this transition part is particularly short and it can also be produced with relatively simple tools.
  • the two large faces of the body, the two large faces of the end and the two inclined faces of the transition part are all planar faces.
  • the two inclined faces of the transition part form an angle of 30 ° relative to the axis of the tube.
  • the tube has a single curved face connecting a small face of the body and a small face of the end, while the other small face of the body and the other small face of the end have at least one common generator.
  • This structure facilitates an arrangement of the tubes in pairs, in which the two tubes of the same pair are joined by the aforementioned generators.
  • the curved face of the transition part substantially takes the form of a section of torus whose diameter corresponds substantially to the width of the section of the tube body.
  • the curved face in the shape of a torus has one end which is connected in the extension of a small face of the body and another end which is connected obliquely with a small face of the end.
  • the curved face connects to the small face of the end, at a level where the body section takes the form of the end section.
  • At least one of the two jaws has a sudden detachment between a part serving for the shaping of the end and a part serving for the shaping of the transition part, in order to produce the curved face .
  • the invention in another aspect, relates to a heat exchanger comprising a multiplicity of tubes of the aforementioned type, the ends of which are received in holes in a collector plate.
  • the tubes are arranged in pairs in two rows, the tubes of the same pair being joined and their respective ends being received in the same hole of the collector plate.
  • Figure 1 shows a tube 10 for a heat exchanger, in particular of a motor vehicle, comprising a body 12 (shown partially) of oblong section, one end 14 of oblong section and a part of transition 16 connecting the body 12 and the end 14.
  • the body 12 has an oblong section S1 (FIG. 2), and is delimited by two large flat faces 18 and by two small rounded faces 20, of substantially semi-circular shape.
  • the end 14 has an oblong section S2 and is delimited by two large flat faces 22 and by two small rounded faces 24 of substantially semi-circular shape.
  • the section S1 of the body 12 has a length (delimited between the two faces 20) and a width (delimited between the two faces 18) which are respectively greater and less than the length (delimited between the faces 24) and the width (delimited between the faces 22) of the section S2 of the end 14.
  • the end 14 has a less oblong shape than the body 12, the perimeter of the end 14 being equal to or slightly greater than that of the body 12.
  • the small face 20 and the small face 24 situated on the left side of FIG. 1 have a common generator G, while the small face 20 and the small face 24 situated on the right side of the figure are offset.
  • the transition portion 16 comprises two inclined plane faces 26 which each connect a large face 18 to a large face 22.
  • the two inclined faces 26 advantageously form an angle of 30 ° relative to the axis of the tube, that is to say a say with respect to the plane of the faces 18 and 22.
  • transition part 16 comprises a curved face 28 connecting the small face 20 of the body and the small end face 24, which are both located on the right side of FIG. 1.
  • the curved face 28 further connects the two large faces 18 of the body 12.
  • the curved face 28 has the shape of a torus section having an end 30 which is connected in the extension of the small face 20 and an end 32 which is connected obliquely with the small face 32 of the end 14.
  • the curved face 28 is connected to the small face 24 at a level where the section of the body takes the shape of the section of the end, which makes it possible to preserve the equality of the perimeters of the tube at the level of the body and from the end.
  • the tube retains the cylindrical shape of the end 14.
  • the tube 10 is advantageously made of a metal or metal alloy, for example aluminum, having good heat exchange properties and can be worked easily.
  • the two tubes 10 of the same pair are joined by their respective generatrices G (FIG. 2).
  • G generatrices G
  • the center distance A of the bodies of the two tubes is greater than the center distance A ′ of the ends of the two tubes.
  • the ends of the tubes are received in a collecting plate 42 through which a multiplicity of holes 44 of oblong shape are formed, each receiving the ends 14 of the two tubes of the same pair.
  • the collector plate 42 having as many holes 44 as pairs of tubes.
  • the collector plate 42 has a generally rectangular shape bordered by a folded edge 46 forming a peripheral groove in which a seal 48 is placed.
  • the exchanger 40 further comprises a water box wall 50 comprising an open face of generally rectangular shape limited by a flange 52 capable of being introduced into the groove of the collecting plate 20 by compressing the bead 48, under the action of clamping lugs 54 of the collector plate.
  • the heat exchanger 40 further comprises intermediate fins 56 disposed between the pairs of tubes 10. These fins are inserted between the bodies 12 of the tubes up to their transition part 16, that is to say up to the base of the inclined faces 26.
  • the zone of the tubes which is devoid of fins is minimal, which makes it possible to optimize the thermal performance of the heat exchanger for a given length of the tubes.
  • the tubes 10 are brazed to the header plate 22, as shown by a solder joint 58.
  • the fins 56 are brazed to the tubes.
  • FIGS. 4 to 9 show a device 60 for shaping a tube as described above.
  • the device 60 comprises a first jaw 62 having an open internal cavity 64 having an internal shape homologous to that of half of the external shape of the body and of the end of the tube, in the region of one of the small faces of the body (in the example, the one located on the side of the common generator G).
  • the device 60 further comprises a second jaw 66 having an open internal cavity 68 having an internal shape homologous to that of another half of the external shape of the body and of the end of the tube, in the region of another small face of the body (in the example, where the curved part 28 must be formed).
  • the internal cavity 64 of the jaw 62 has three main parts 70, 72 and 74 respectively serving to shape the end, the transition part and the body.
  • the internal cavity 68 comprises three successive parts 76, 78 and 80 respectively serving to shape the end, the transition part and the body of the tube.
  • the cavity 68 includes a sudden step 82 between the parts 76 and 80, this step making it possible to form the curved part 28.
  • the jaws 62 and 66 can be moved towards or away from each other in a direction D which extends transversely to the axis of the tube.
  • Means are provided for bringing the two jaws towards one another along a first movement stroke in direction D to grip the tube, as shown in FIGS. 4 and 5, without starting the deformation of the end.
  • a punch 84 is used, as shown in FIG. 7, comprising an end 86 corresponding to the internal shape of the body (but with a shorter section length), an intermediate part 88 corresponding to the shape of the transition part and an opposite part 90 corresponding to the internal shape of the end of the tube.
  • the punch 84 is completely inserted into the end of the tube, which ensures the conformation of the end 16 and of the transition part 14.
  • the device 60 allows the tube to be shaped under precise and rapid conditions suitable for high speed production lines.
  • the tube is formed in principle on its two ends to then allow the mounting of such tubes between the two water boxes of a heat exchanger.
  • heat exchanger tubes comprising two curved faces 28, instead of a single curved face, as shown previously in FIG. 1.
  • the tube of the invention is very particularly suitable for heat exchangers, in particular for motor vehicle cooling radiators.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
EP95100616A 1994-01-20 1995-01-18 Wärmetauscher, Verfahren zu dessen Herstellung und Wärmetauscher mit solchen Röhren Ceased EP0664428A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9400595 1994-01-20
FR9400595A FR2715216B1 (fr) 1994-01-20 1994-01-20 Tube d'échangeur de chaleur, procédé pour sa conformation et échangeur de chaleur comprenant de tels tubes.

Publications (1)

Publication Number Publication Date
EP0664428A1 true EP0664428A1 (de) 1995-07-26

Family

ID=9459218

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95100616A Ceased EP0664428A1 (de) 1994-01-20 1995-01-18 Wärmetauscher, Verfahren zu dessen Herstellung und Wärmetauscher mit solchen Röhren

Country Status (7)

Country Link
US (1) US5579832A (de)
EP (1) EP0664428A1 (de)
JP (1) JPH07218170A (de)
KR (1) KR950033404A (de)
CN (1) CN1111748A (de)
BR (1) BR9500247A (de)
FR (1) FR2715216B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19649129A1 (de) * 1996-11-27 1998-05-28 Behr Gmbh & Co Flachrohr-Wärmeübertrager mit umgeformtem Flachrohrendabschnitt
DE19820937A1 (de) * 1998-05-09 1999-11-11 Behr Gmbh & Co Flachrohr sowie Verfahren und Vorrichtung zu seiner Herstellung
EP1574802A2 (de) * 2004-03-13 2005-09-14 Dr.Ing. h.c.F. Porsche Aktiengesellschaft Wärmetauscher, insbesondere Ladeluftkühler für ein Kraftfahrzeug

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2740869B1 (fr) * 1995-11-02 1997-12-19 Valeo Thermique Moteur Sa Echangeur de chaleur a tubes de section ovale ou oblongue et son procede d'assemblage
FR2742535B1 (fr) 1995-12-19 1998-01-30 Valeo Climatisation Echangeur de chaleur a boite a fluide brasee, en particulier pour vehicule automobile
DE19722097A1 (de) * 1997-05-27 1998-12-03 Behr Gmbh & Co Wärmeübertrager sowie Wärmeübertrageranordnung für ein Kraftfahrzeug
DE19846267A1 (de) * 1998-10-08 2000-04-13 Behr Gmbh & Co Sammelrohreinheit für einen Wärmeübertrager
FR2786558B1 (fr) * 1998-11-30 2001-02-02 Valeo Thermique Moteur Sa Tube plat pour echangeur de chaleur de largeur reduite
JP2000346585A (ja) * 1999-06-07 2000-12-15 Mitsubishi Heavy Ind Ltd 熱交換器
DE10103570A1 (de) * 2001-01-26 2002-08-01 Modine Mfg Co Wärmetauscher und Herstellungsverfahren
CN1323801C (zh) * 2003-07-09 2007-07-04 江秀霞 散热鳍片与导热管或连接件的组合方法以及该方法所用的加工机构
CA2443496C (en) * 2003-09-30 2011-10-11 Dana Canada Corporation Tube bundle heat exchanger comprising tubes with expanded sections
CN101631996A (zh) * 2006-10-13 2010-01-20 开利公司 包括微通道热交换器的制冷装置
FR2912209B1 (fr) * 2007-02-06 2013-08-23 Valeo Systemes Thermiques Echangeur multi circuits
US8517720B2 (en) * 2008-10-16 2013-08-27 Lochinvar, Llc Integrated dual chamber burner
US8286594B2 (en) * 2008-10-16 2012-10-16 Lochinvar, Llc Gas fired modulating water heating appliance with dual combustion air premix blowers
JP5356068B2 (ja) * 2009-02-25 2013-12-04 昭和電工株式会社 ステアリングサポートビーム及びその製造方法
US8844472B2 (en) * 2009-12-22 2014-09-30 Lochinvar, Llc Fire tube heater
DE102010003146A1 (de) * 2010-03-23 2011-09-29 Ford Global Technologies, Llc Verfahren zum Abkühlen einer Fahrzeugkabine
DE102010026280A1 (de) 2010-07-06 2012-01-12 Behr Gmbh & Co. Kg Verfahren zur Herstellung eines Rohres für einen Wärmetauscher, insbesondere für ein Kraftfahrzeug
US9097436B1 (en) 2010-12-27 2015-08-04 Lochinvar, Llc Integrated dual chamber burner with remote communicating flame strip
US9015923B2 (en) 2012-08-09 2015-04-28 Modine Manufacturing Company Heat exchanger tube, heat exchanger tube assembly, and methods of making the same
US20140041844A1 (en) * 2012-08-09 2014-02-13 Eric Lindell Heat Exchanger Tube, Heat Exchanger Tube Assembly, And Methods Of Making The Same
US9302337B2 (en) 2012-08-09 2016-04-05 Modine Manufacturing Company Heat exchanger tube, heat exchanger tube assembly, and methods of making the same
US20140041843A1 (en) * 2012-08-09 2014-02-13 Eric Lindell Heat Exchanger Tube, Heat Exchanger Tube Assembly, And Methods Of Making The Same
GB2509762B (en) * 2013-01-14 2015-02-04 Halla Visteon Climate Control Tube for Heat Exchanger
US9464805B2 (en) 2013-01-16 2016-10-11 Lochinvar, Llc Modulating burner
US10317142B2 (en) * 2014-08-25 2019-06-11 Hanon Systems Heat exchanger having a mechanically assembled header
US11079181B2 (en) * 2018-05-03 2021-08-03 Raytheon Technologies Corporation Cast plate heat exchanger with tapered walls
CN109433880B (zh) * 2018-11-02 2020-04-21 宁波市晶隆电子商务有限公司 冰箱蒸发器用铝管压扁加工装置

Citations (5)

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Publication number Priority date Publication date Assignee Title
FR914783A (fr) * 1943-10-06 1946-10-17 Ici Ltd échangeur thermique
FR2474674A1 (fr) * 1980-01-24 1981-07-31 Ferodo Sa Tube pour echangeur de chaleur a corps de section oblongue et extremite cylindrique
US4546824A (en) * 1984-03-19 1985-10-15 Mccord Heat Transfer Corporation Heat exchanger
EP0253167A1 (de) * 1986-07-09 1988-01-20 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co. KG Wärmetauscher, insbesondere Kältemittel-Verdampfer
FR2674322A1 (fr) * 1991-03-20 1992-09-25 Valeo Thermique Moteur Sa Echangeur de chaleur a faisceau de tubes, en particulier pour vehicule automobile.

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GB1232414A (de) * 1968-02-02 1971-05-19
DE2144465B2 (de) * 1971-09-06 1975-04-17 Geax-Luftkuehlergesellschaft Happel Gmbh & Co Kg, 4630 Bochum Durch einen Luftstrom gekühlter Oberflächenkondensator
JPS5895190A (ja) * 1981-12-02 1983-06-06 Kiyoteru Takayasu 熱交換器
US4730669A (en) * 1986-02-03 1988-03-15 Long Manufacturing Ltd. Heat exchanger core construction utilizing a diamond-shaped tube-to-header joint configuration
US5099576A (en) * 1989-08-29 1992-03-31 Sanden Corporation Heat exchanger and method for manufacturing the heat exchanger
FR2674321B1 (fr) * 1991-03-20 1993-06-04 Valeo Thermique Moteur Sa Echangeur de chaleur a plusieurs rangees de tubes, en particulier pour vehicule automobile.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR914783A (fr) * 1943-10-06 1946-10-17 Ici Ltd échangeur thermique
FR2474674A1 (fr) * 1980-01-24 1981-07-31 Ferodo Sa Tube pour echangeur de chaleur a corps de section oblongue et extremite cylindrique
US4546824A (en) * 1984-03-19 1985-10-15 Mccord Heat Transfer Corporation Heat exchanger
EP0253167A1 (de) * 1986-07-09 1988-01-20 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co. KG Wärmetauscher, insbesondere Kältemittel-Verdampfer
FR2674322A1 (fr) * 1991-03-20 1992-09-25 Valeo Thermique Moteur Sa Echangeur de chaleur a faisceau de tubes, en particulier pour vehicule automobile.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19649129A1 (de) * 1996-11-27 1998-05-28 Behr Gmbh & Co Flachrohr-Wärmeübertrager mit umgeformtem Flachrohrendabschnitt
DE19820937A1 (de) * 1998-05-09 1999-11-11 Behr Gmbh & Co Flachrohr sowie Verfahren und Vorrichtung zu seiner Herstellung
EP1574802A2 (de) * 2004-03-13 2005-09-14 Dr.Ing. h.c.F. Porsche Aktiengesellschaft Wärmetauscher, insbesondere Ladeluftkühler für ein Kraftfahrzeug
EP1574802A3 (de) * 2004-03-13 2011-09-07 Dr. Ing. h.c. F. Porsche AG Wärmetauscher, insbesondere Ladeluftkühler für ein Kraftfahrzeug

Also Published As

Publication number Publication date
FR2715216A1 (fr) 1995-07-21
FR2715216B1 (fr) 1996-02-16
BR9500247A (pt) 1995-10-17
US5579832A (en) 1996-12-03
CN1111748A (zh) 1995-11-15
KR950033404A (ko) 1995-12-26
JPH07218170A (ja) 1995-08-18

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