EP0567410A1 - Wärmetauscher mit Röhren mit länglichem Querschnitt, insbesondere für Kraftfahrzeuge - Google Patents

Wärmetauscher mit Röhren mit länglichem Querschnitt, insbesondere für Kraftfahrzeuge Download PDF

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Publication number
EP0567410A1
EP0567410A1 EP93401066A EP93401066A EP0567410A1 EP 0567410 A1 EP0567410 A1 EP 0567410A1 EP 93401066 A EP93401066 A EP 93401066A EP 93401066 A EP93401066 A EP 93401066A EP 0567410 A1 EP0567410 A1 EP 0567410A1
Authority
EP
European Patent Office
Prior art keywords
section
heat exchanger
end section
bead
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.)
Withdrawn
Application number
EP93401066A
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English (en)
French (fr)
Inventor
Pascal Velluet
Jacques Hoffnung
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 EP0567410A1 publication Critical patent/EP0567410A1/de
Withdrawn legal-status Critical Current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

Definitions

  • the invention relates to a heat exchanger of the type comprising a multiplicity of oblong cross-section tubes which have end sections engaged in corresponding holes, formed in a collector plate, with the interposition of a seal, a portion of which is , each time, compressed between the end section and a surface of the corresponding hole.
  • Such heat exchangers are used in particular as radiators for cooling the engines of motor vehicles.
  • the oblong section of the tubes can deviate more or less from the shape of a circle and present for example an oval, elliptical or flattened shape with two opposite long sides and two opposite short sides.
  • the long sides can be straight or curved and the short sides are curved.
  • These oblong section tubes are arranged so that the largest dimension of their section extends in a direction substantially parallel to the direction of flow of air through the bundle.
  • heat exchangers of the aforementioned type also called “mechanically assembled heat exchangers"
  • the quality of the seal at the connection between the end section of the tube and the collector plate depends mainly on the resistance of this end section under the effect of the mechanical reaction of the portion of seal which surrounds it.
  • this resistance is mainly linked to the rigidity of the end section and depends in particular on the shape of the section of this section.
  • This document proposes in particular that the long sides of the section are thickened compared to the short sides, which means that extrusion of particular tubes of non-constant thickness is necessary. This document also proposes to introduce, in the end sections of the tubes, particular profiles intended to prevent the deformation of the end section.
  • the object of the invention is in particular to propose a heat exchanger of the type defined above, in which the end sections of the tubes can be reinforced in a particularly simple manner, without requiring complicated mounting operations and without disturbing the fluid flow through the exchanger tubes.
  • Another object of the invention is to provide such a heat exchanger, in which the end sections of the tubes of oblong section can be reinforced in a particularly effective manner, whatever the shape of the oblong section and in particular when this the latter is very elongated and flattened.
  • each end section has a wall reinforced by a bead of the wall which is located at a distance from a free edge of the end section.
  • This peripheral bead makes it possible to stiffen the wall of the end section and thus prevent its deformation under the effect of the mechanical reaction of the joint portion which surrounds it.
  • This peripheral bead which is provided on an end section of oblong section and not on an end section of circular section as in the prior art, performs a new and different function, namely a reinforcing function, which n 'is not present in the case of tubes having end sections of circular section.
  • the free edge extends in the extension of the oblong section and the end section is deformed by radial expansion to ensure radial compression of the portion of the seal which is included. between the end section and the surface of the corresponding hole.
  • the surface of the hole is advantageously delimited by a collar depending on the collector plate and the radial expansion of the end section is carried out over a length at least equal to the length of the collar.
  • the free edge of the end section is deformed at least partially to form a flare.
  • This flaring can be carried out over the entire periphery of the tube or be localized only. It follows that the portion of the seal which provides the seal is located in the annular space between, on the one hand, the bead and the flare and, on the other hand, the end section and the surface of the hole.
  • the portion of the joint can undergo either a radial compression between the end section and the surface of the hole, or an axial compression between the bead and the flare, or else a simultaneous radial compression and axial compression .
  • the surface of the hole is advantageously delimited by a collar depending on the collector plate and the portion of the seal has a tubular shape, which is compressed in the annular space delimited axially by the bead and the flare and radially by the surface of the hole and by the end section of the tube.
  • the bead advantageously extends over the entire periphery of the tubular section.
  • this bead may extend partly over the periphery of the tubular section.
  • FIG. 1 shows a tube 10 of axis XX forming part of a heat exchanger, in particular of a cooling radiator, and comprising a body 12 of oblong section extended by a section d end 14 having initially the same oblong shape as body 12.
  • the end portion 14 has, in the example, a generally oblong section, delimited by two long sides 16, rectilinear and parallel to each other, and two short sides 18, of shape semicircular.
  • the heat exchanger comprises a multiplicity of tubes 12 arranged parallel to each other to form a bundle which communicates respectively with two opposite manifold boxes (not shown).
  • the tubes are made of a metallic material, advantageously aluminum or an aluminum alloy.
  • Each of the end sections 14 is introduced into a hole 20 made through a manifold plate 22, also called a "hole plate", forming part of one of the manifolds.
  • Each collector plate 22 thus comprises a multiplicity of holes 20 arranged in a determined geometrical configuration corresponding to the configuration of the tubes, and this in a well known manner.
  • Each of the collector plates 22 is, in the example, made of a metallic material, but could also be obtained by molding a plastic material.
  • the plate 22 is delimited by two opposite faces 24 and 26 and each of the holes 20 is bordered by a tubular collar 28 which projects relative to the face 26.
  • This collar 28 internally delimits a surface 30, of oblong section, of homologous shape , but larger than the oblong section of the end section 14.
  • a seal 32 is provided, for example made of elastomer, which has the form of a plate 34 applied against the face 24 of the collector plate 22.
  • This plate 34 comprises a multiplicity of tubular extensions 36 each forming a portion of seal ensuring the seal between the end section 14 and the surface 30 which is located opposite said section.
  • a heat exchanger as has just been described so far, is known in itself.
  • the invention proposes to reinforce the end section 14 by providing it with a bead 38 which is located at a distance from a free edge 40 of said section, this free edge projecting beyond the plate. 34 of the seal.
  • the peripheral bead 38 is produced in parallel with the wall 42 by forming two annular folds 44 and 46, extending in planes perpendicular to the axial direction XX of the tube 12, the folds 44 and 46 being joined by a rounded peripheral edge 48.
  • the bead 38 which extends above all the periphery of the end section 14, makes it possible to reinforce this end, in particular at the level of the long sides 16, which prevents their deformation under the effect of the mechanical reaction of the joint.
  • the bead 38 can extend partially over the periphery of the end section 14.
  • this bead can be situated only on the long sides 16 with optionally a transverse dimension increasing from a short side 18 to a median zone on the long side 16 and then decreasing from this median zone to on the other short side 18.
  • the left part of the figure shows the bead 38 in the case where it extends over the entire periphery of the end section 14.
  • the bead 38 can be obtained by mechanical means in themselves known using punches and presses.
  • the free edge 40 then undergoes, after assembly of the exchanger, a deformation to form a flare 52, in the example of frustoconical shape, over the entire periphery of the tube or a localized flare, for example, on the long sides 16 of the tubes.
  • the seal of the seal is ensured only by radial compression due to the expansion undergone by the end section 14 (arrows F).
  • the flaring 52 mainly prevents separation of the tubes from the bundle and the collector plate.
  • the configuration of the end section 14 is similar to that of the end section of Figure 3.
  • the formation of the flare 52 contributes to the axial compression of the portion 36.
  • the portion 36 of the joint is thus compressed radially by radial expansion of the section 14 (arrows F) and axially by the formation of the flare 52.
  • the portion 36 of tubular configuration is compressed axially between the bead 38 on one side and the flare 52 on the other.
  • a flare 52 is also provided.
  • the portion 36 of the seal is compressed axially between the bead 38 and the flare 52.
  • the section 14 does not undergo radial expansion as in the case of the embodiments described above.
  • the radial compression of the seal is carried out beforehand by introducing a punch and then the end portion 14 is introduced into the portion 36 of the seal. This process is described in French Patent 2,529,110 of the Applicant.
  • the invention is not limited to the embodiments described above.
  • the oblong shape of the end section can be more or less flattened and affect the shape of an oval, an ellipse, a flat tube having two large parallel sides, etc.
  • the invention applies in particular to cooling radiators for motor vehicle engines, in which the bundle tubes are provided with fins and connected respectively to two manifolds.

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)
EP93401066A 1992-04-24 1993-04-23 Wärmetauscher mit Röhren mit länglichem Querschnitt, insbesondere für Kraftfahrzeuge Withdrawn EP0567410A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9205111 1992-04-24
FR9205111A FR2690515A1 (fr) 1992-04-24 1992-04-24 Echangeur de chaleur à tubes de section oblongue, en particulier pour véhicules automobiles.

Publications (1)

Publication Number Publication Date
EP0567410A1 true EP0567410A1 (de) 1993-10-27

Family

ID=9429253

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93401066A Withdrawn EP0567410A1 (de) 1992-04-24 1993-04-23 Wärmetauscher mit Röhren mit länglichem Querschnitt, insbesondere für Kraftfahrzeuge

Country Status (6)

Country Link
US (1) US5348082A (de)
EP (1) EP0567410A1 (de)
JP (1) JPH06129793A (de)
BR (1) BR9301645A (de)
FR (1) FR2690515A1 (de)
MX (1) MX9302405A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4445590A1 (de) * 1994-12-20 1996-06-27 Behr Gmbh & Co Wärmetauscher, Verfahren zu dessen Herstellung sowie Werkzeug zur Durchführung des Verfahrens
DE19539969A1 (de) * 1995-10-27 1997-04-30 Behr Gmbh & Co Anordnung aus Rohrboden und Rohr, Verfahren sowie Werkzeug zu deren Herstellung
EP0805331A2 (de) * 1996-04-30 1997-11-05 Sanden Corporation Multiröhren-Wärmetauscher
DE19805439B4 (de) * 1998-02-11 2005-06-23 Behr Gmbh & Co. Kg Verfahren zur Herstellung eines Stapelscheibenwärmeübertragers und dadurch hergestellter Wärmeübertrager

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3021205B2 (ja) * 1992-08-31 2000-03-15 三菱重工業株式会社 熱交換器用ヘッダ
US5433268A (en) * 1993-12-03 1995-07-18 L & M Radiator, Inc. Radiator construction
US7549465B2 (en) * 2006-04-25 2009-06-23 Lennox International Inc. Heat exchangers based on non-circular tubes with tube-endplate interface for joining tubes of disparate cross-sections
US7926854B2 (en) * 2008-10-10 2011-04-19 Denso International America, Inc. Pipe joint block for fluid transfer
FR2951259B1 (fr) 2009-10-08 2014-02-28 Valeo Systemes Thermiques Plaque collectrice pour un echangeur de chaleur et echangeur de chaleur correspondant
JP5821702B2 (ja) * 2012-03-01 2015-11-24 株式会社豊田自動織機 冷却器
US20140041843A1 (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
US9015923B2 (en) 2012-08-09 2015-04-28 Modine Manufacturing Company Heat exchanger tube, heat exchanger tube assembly, and methods of making the same
DE102014219308A1 (de) * 2014-09-24 2016-03-24 Mahle International Gmbh Verfahren zum Herstellen einer Anordnung mit einem Rohrkörper und einem Bauteil
DE102014219401A1 (de) * 2014-09-25 2016-03-31 Mahle International Gmbh Anordnung für eine Temperiereinrichtung sowie Temperiereinrichtung
FR3037643B1 (fr) * 2015-06-22 2019-07-12 Valeo Systemes Thermiques Echangeur de chaleur et procede de fabrication associe
US10563570B2 (en) * 2017-08-29 2020-02-18 Caterpillar Inc. High temperature capable joint assembly for use in air-to-air aftercoolers (ATAAC)
US11230964B2 (en) * 2020-04-20 2022-01-25 Caterpillar Inc. Machine system having cooler with pack seal and header assembly for same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2009863A (en) * 1934-11-22 1935-07-30 Reuben N Trane Heat exchanger
DE2009122A1 (de) * 1969-02-26 1970-09-10 S.A. des Usines Chausson, Asnieres, Hauts de Seine (Frankreich) Verfahren zur dichten mechanischen Verbindung der Bauteile eines Kühlers
FR2031668A5 (de) * 1969-02-03 1970-11-20 Chausson Usines Sa
US4467511A (en) * 1979-07-26 1984-08-28 Collgon Pierre C Method for the conformation of a metallic tube, particularly for a heat exchanger, and a heat exchanger provided with tubes thus conformed
DE8323074U1 (de) * 1983-08-10 1988-10-27 Henricy, Erich, 3005 Hemmingen, De

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2512941B1 (fr) * 1981-09-14 1987-04-24 Valeo Echangeur de chaleur a faisceau de tubes paralleles et procede d'assemblage de ses elements constitutifs
US4485867A (en) * 1982-02-08 1984-12-04 Ex-Cell-O Corporation Heat exchanger
FR2570814B1 (fr) * 1984-09-25 1986-12-19 Valeo Echangeur de chaleur a faisceau de tubes, en particulier pour vehicule automobile
SU1388690A1 (ru) * 1986-05-06 1988-04-15 Всесоюзный научно-исследовательский и конструкторско-технологический институт компрессорного машиностроения Способ закреплени трубы в трубной решетке теплообменника
DE3908266A1 (de) * 1989-03-14 1990-09-20 Autokuehler Gmbh & Co Kg Waermeaustauscher und verfahren zur fluessigkeitsdichten befestigung einer bodenplatte an einem waermetauschernetz

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2009863A (en) * 1934-11-22 1935-07-30 Reuben N Trane Heat exchanger
FR2031668A5 (de) * 1969-02-03 1970-11-20 Chausson Usines Sa
DE2009122A1 (de) * 1969-02-26 1970-09-10 S.A. des Usines Chausson, Asnieres, Hauts de Seine (Frankreich) Verfahren zur dichten mechanischen Verbindung der Bauteile eines Kühlers
US4467511A (en) * 1979-07-26 1984-08-28 Collgon Pierre C Method for the conformation of a metallic tube, particularly for a heat exchanger, and a heat exchanger provided with tubes thus conformed
DE8323074U1 (de) * 1983-08-10 1988-10-27 Henricy, Erich, 3005 Hemmingen, De

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4445590A1 (de) * 1994-12-20 1996-06-27 Behr Gmbh & Co Wärmetauscher, Verfahren zu dessen Herstellung sowie Werkzeug zur Durchführung des Verfahrens
DE4445590C2 (de) * 1994-12-20 2001-02-01 Behr Gmbh & Co Verfahren zum Aufweiten der Rohrenden von Rohren eines Wärmetauschers, Werkzeug zur Durchführung des Verfahrens sowie nach dem Verfahren und mit dem Werkzeug hergestellter Wärmetauscher
DE19539969A1 (de) * 1995-10-27 1997-04-30 Behr Gmbh & Co Anordnung aus Rohrboden und Rohr, Verfahren sowie Werkzeug zu deren Herstellung
FR2740366A1 (fr) * 1995-10-27 1997-04-30 Behr Gmbh & Co Ensemble forme d'un plateau tubulaire et d'un tube et procede ainsi qu'outil pour sa realisation
EP0805331A2 (de) * 1996-04-30 1997-11-05 Sanden Corporation Multiröhren-Wärmetauscher
EP0805331A3 (de) * 1996-04-30 1998-07-08 Sanden Corporation Multiröhren-Wärmetauscher
DE19805439B4 (de) * 1998-02-11 2005-06-23 Behr Gmbh & Co. Kg Verfahren zur Herstellung eines Stapelscheibenwärmeübertragers und dadurch hergestellter Wärmeübertrager

Also Published As

Publication number Publication date
US5348082A (en) 1994-09-20
JPH06129793A (ja) 1994-05-13
FR2690515A1 (fr) 1993-10-29
MX9302405A (es) 1994-05-31
BR9301645A (pt) 1993-10-26

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