EP0709642A1 - Wärmetauscher mit rohrförmigen Endkammer - Google Patents

Wärmetauscher mit rohrförmigen Endkammer Download PDF

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Publication number
EP0709642A1
EP0709642A1 EP95116264A EP95116264A EP0709642A1 EP 0709642 A1 EP0709642 A1 EP 0709642A1 EP 95116264 A EP95116264 A EP 95116264A EP 95116264 A EP95116264 A EP 95116264A EP 0709642 A1 EP0709642 A1 EP 0709642A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
complementary
complementary parts
manifold
wall
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Withdrawn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
EP95116264A
Other languages
English (en)
French (fr)
Inventor
Jean Louis Laveran
Daniel Hervel
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 EP0709642A1 publication Critical patent/EP0709642A1/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Withdrawn legal-status Critical Current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
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0224—Header boxes formed by sealing end plates into covers
    • 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
    • F28F9/0243—Header boxes having a circular cross-section

Definitions

  • the invention relates to a heat exchanger with tubular manifolds, in particular for a motor vehicle.
  • a heat exchanger of the type comprising two manifolds with tubular walls and with a bundle of flat tubes, the ends of which are sealingly engaged in slots made in the wall of each manifold, and in which each manifold is formed of two complementary parts of generally semi-cylindrical shape, joined together by longitudinal edges of assembly of conjugate shapes.
  • Heat exchangers of this type are already known, for example from US Patent 5,125,454.
  • the bundle further comprises corrugated spacers forming cooling fins and disposed between the tubes of the bundle, the assembly being usually brazed to the two manifolds.
  • tubular walls in particular circular cylindrical walls, makes it possible to obtain manifolds resistant to high internal pressures, such as those produced by certain fluids in the case of a motor vehicle.
  • fluids at high pressure mention may in particular be made of the charge air of a turbocharged engine, the lubricating oil of the engine, etc.
  • the object of the invention is in particular to overcome these drawbacks.
  • each of the two complementary parts comprises a semi-cylindrical wall extended by two longitudinal assembly edges offset radially with respect to the wall.
  • the manifold thus produced has a cylindrical wall in the broad sense, that is to say a wall with parallel generators resting on a closed curve which preferably has the shape of a circle or an approaching shape.
  • the respective assembly edges of the two complementary parts of the manifold extend parallel to the guidelines of the cylinder formed by the meeting of these two complementary parts.
  • the two complementary parts are of semi-circular section.
  • the two complementary parts of circular section have substantially the same radius.
  • the heat exchanger comprises a first complementary part having internal longitudinal edges offset radially inwards to come into abutment against the internal face of the semi-cylindrical wall of a second complementary part, while this second complementary part has external longitudinal edges offset radially outward for come to bear against the external face of the semi-cylindrical wall of the first complementary part.
  • the external longitudinal edges of the second complementary part are provided with retaining tabs folded radially inwards to ensure the provisional maintenance of the two complementary parts before their final assembly.
  • the slots are made in one of the two complementary parts.
  • each manifold is provided with two end walls joined to the two complementary parts.
  • FIG. 1 represents a first heat exchanger 10 and a second heat exchanger 30 according to the invention, arranged side by side or paired and both comprising a similar structure.
  • the heat exchanger 10 comprises two tubular manifolds 12 and 14 with respective axes XX and YY. Between the two manifolds 12 and 14 is mounted a bundle 16 formed of a multiplicity of flat tubes 18, parallel to each other, and a multiplicity of corrugated inserts 20 forming fins and disposed between the tubes 18.
  • the latter have, in the example, a rectangular cross section.
  • the ends of the tubes 18 of the bundle are engaged, on one side, in slots 22 made in the wall of the manifold 12 and, on the opposite side, in similar slots 24 made in the wall of the manifold 14.
  • the manifolds 12 and 14 are provided with two pipes 26 and 28 respectively serving for the entry and exit of a first fluid, as shown by the arrows F1 and F2.
  • the first fluid is supercharging air from a turbocharged engine which must be cooled by an air flow externally sweeping the tubes 18 and the spacers 20 of the bundle 16.
  • the heat exchanger 30 comprises two manifolds 32 and 34 attached respectively to the manifolds 12 and 14 and aligned with the latter.
  • manifold 32 is axially aligned with the manifold 12, while the manifold 34 is axially aligned with the manifold 14.
  • the manifolds 32 and 34 are also joined by the bundle 16, the ends of the tubes 18 being engaged, on one side, in slots 36 of the manifold 32 and, on the opposite side, in slots 38 of the manifold 34.
  • manifolds 32 and 34 are provided with an inlet manifold 40 and an outlet manifold 42 serving respectively for the inlet and outlet of a second fluid, as shown by the arrows F3 and F4.
  • this second fluid can be engine lubricating oil, which should be cooled by heat exchange with an air flow.
  • the pipes 26 and 28 are integral with two end walls 44 and 46 forming part of the manifolds 12 and 14, while the pipes 40 and 42 are integral with two end walls 48 and 50 forming part of the manifolds 32 and 34.
  • two walls 52 and 54 are interposed respectively between the manifolds 12 and 32 and between the manifolds 14 and 34.
  • FIGS. 2 and 3 describe more particularly the structure of the manifold 12, note being made that the structure of the other manifolds 14, 32 and 34 is similar.
  • the manifold 12 is formed of two complementary parts 56 and 58 of generally semi-cylindrical shape which, when joined together, have substantially the shape of a circular cylinder of axis XX.
  • Part 56 comprises a circular semi-cylindrical wall 60 of axis XX and internal radius R, which extends over a little more than 180 ° (FIG. 3).
  • the wall 60 is extended by two longitudinal assembly edges 62, forming two narrow bands, and offset radially inwards relative to the wall 60.
  • the two longitudinal edges 62 extend in directions parallel to the generatrices of the cylinder d axis XX and each have an external face of cylindrical configuration and having substantially the radius R.
  • the two assembly edges 62 are intended to cooperate with the complementary part 58 and at the same time serve as a translation stop for the tubes 18.
  • Part 58 includes a semi-cylindrical wall 64 of circular section and radius R which extends over a little less than 180 ° (FIG. 3).
  • the slots 22 intended to receive the ends of the tubes 18, while the wall 60 of the part 56 is not perforated.
  • the wall 64 is extended by two longitudinal assembly edges 66 offset radially outwards and produced in the form of two narrow strips extending parallel to the directors of the cylinder with axis XX.
  • the internal face of the assembly edges 66 is capable of coming to bear against the external face of the wall 60, in the region of this wall which is immediately adjacent to the assembly edges 62.
  • the longitudinal edges 66 of the part 58 are each provided with two holding tabs 70 (FIGS. 2 and 3) which are folded radially inwards to ensure the provisional holding of the two complementary parts 56 and 58 once assembled.
  • the tabs 70 are slightly folded inwards and thus provide an elastic bearing force which tends to maintain contact between the assembly edges 62 and the wall 64 and between the assembly edges 66 and the wall 60.
  • the complementary parts 56 and 58 are advantageously formed from a metal sheet coated, on each of its faces, with a brazing alloy.
  • the slots 22 are preferably made in the thickness of the wall of the part 58 previously formed to the desired shape.
  • the complementary parts 56 and 58 can be held together, in their correct assembly position, it then suffices to pass the heat exchanger to the oven to ensure the connection between the two complementary parts 56 and 58 and also ensure the connection of the manifolds to the bundle 16, that is to say to the tubes 18 and to the spacers 20.
  • FIG. 4 shows more particularly the structure of the two manifolds 12 and 32 aligned along the axis XX.
  • the end wall 44 is of generally circular shape and is internally lined with a counter-plate 72 of circular shape, and of smaller diameter. These structures facilitate the provisional retention of the end wall 44 before brazing.
  • the tubing 26 passes through two aligned holes 74 and 76 made respectively through the wall 44 and the counterplate 72.
  • the tubing 26 comprises two spaced beads 78 and 80 extending respectively from on either side of the partition 44 and of the counter plate 72 in order to maintain these three elements together.
  • the end wall 48 is internally provided with a counter plate 82 similar to the counter plate 72.
  • intermediate wall 52 forming a partition is provided with two opposite counter-plates 84 and 86 facilitating the assembly of the two manifolds 12 and 32 in the extension of one another.
  • the exchanger of FIG. 1 can be easily produced by brazing, its constituent parts being held together when passing through the brazing furnace.
  • the invention is not limited to a heat exchanger, of the double type, as shown only by way of example in FIG. 1.
  • the slots made in the walls of the manifolds can be produced easily with a simplified tool, since the machining of the slots is carried out on a semi-cylindrical part and not on a cylindrical part.
  • the invention finds a very particular application to heat exchangers for 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)
EP95116264A 1994-10-24 1995-10-16 Wärmetauscher mit rohrförmigen Endkammer Withdrawn EP0709642A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9412690 1994-10-24
FR9412690A FR2726076B1 (fr) 1994-10-24 1994-10-24 Echangeur de chaleur a boites collectrices tubulaires

Publications (1)

Publication Number Publication Date
EP0709642A1 true EP0709642A1 (de) 1996-05-01

Family

ID=9468145

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95116264A Withdrawn EP0709642A1 (de) 1994-10-24 1995-10-16 Wärmetauscher mit rohrförmigen Endkammer

Country Status (2)

Country Link
EP (1) EP0709642A1 (de)
FR (1) FR2726076B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2755507A1 (fr) * 1996-11-04 1998-05-07 Valeo Thermique Moteur Sa Collecteur bipartite pour echangeur de chaleur, notamment de vehicule automobile
FR2757617A1 (fr) * 1996-12-23 1998-06-26 Valeo Thermique Moteur Sa Boite collectrice en deux parties pour condenseur
WO2007048889A1 (fr) * 2005-10-28 2007-05-03 Valeo Systemes Thermiques Echangeur de chaleur a tubes plats resistant a la pression
CN101776413A (zh) * 2009-01-09 2010-07-14 三花丹佛斯（杭州）微通道换热器有限公司 热交换器及其制造方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5125454A (en) 1991-08-27 1992-06-30 Thermal Components, Inc. Manifold assembly for a parallel flow heat exchanger
US5127466A (en) * 1989-10-06 1992-07-07 Sanden Corporation Heat exchanger with header bracket and insertable header plate
DE4217062A1 (de) * 1991-05-23 1992-11-26 Zexel Corp Klammeraufbau fuer waermetauschermontage
US5172762A (en) * 1989-10-20 1992-12-22 Sanden Corporation Heat exchanger
WO1993004334A1 (en) * 1991-08-27 1993-03-04 Thermal Components, Inc. Manifold assembly for a parallel flow heat exchanger
US5236042A (en) * 1991-02-20 1993-08-17 Sanden Corporation Heat exchanger and method of making the same
US5307870A (en) * 1991-12-09 1994-05-03 Nippondenso Co., Ltd. Heat exchanger

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5127466A (en) * 1989-10-06 1992-07-07 Sanden Corporation Heat exchanger with header bracket and insertable header plate
US5172762A (en) * 1989-10-20 1992-12-22 Sanden Corporation Heat exchanger
US5236042A (en) * 1991-02-20 1993-08-17 Sanden Corporation Heat exchanger and method of making the same
DE4217062A1 (de) * 1991-05-23 1992-11-26 Zexel Corp Klammeraufbau fuer waermetauschermontage
US5125454A (en) 1991-08-27 1992-06-30 Thermal Components, Inc. Manifold assembly for a parallel flow heat exchanger
WO1993004334A1 (en) * 1991-08-27 1993-03-04 Thermal Components, Inc. Manifold assembly for a parallel flow heat exchanger
US5307870A (en) * 1991-12-09 1994-05-03 Nippondenso Co., Ltd. Heat exchanger

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2755507A1 (fr) * 1996-11-04 1998-05-07 Valeo Thermique Moteur Sa Collecteur bipartite pour echangeur de chaleur, notamment de vehicule automobile
FR2757617A1 (fr) * 1996-12-23 1998-06-26 Valeo Thermique Moteur Sa Boite collectrice en deux parties pour condenseur
EP0851201A1 (de) * 1996-12-23 1998-07-01 Valeo Thermique Moteur Endkammer in zwei Teilen für Wärmetauscher
US5944096A (en) * 1996-12-23 1999-08-31 Valeo Thermique Moteur Two-part header for a condenser
WO2007048889A1 (fr) * 2005-10-28 2007-05-03 Valeo Systemes Thermiques Echangeur de chaleur a tubes plats resistant a la pression
CN101776413A (zh) * 2009-01-09 2010-07-14 三花丹佛斯（杭州）微通道换热器有限公司 热交换器及其制造方法
CN101776413B (zh) * 2009-01-09 2012-10-03 三花控股集团有限公司 热交换器及其制造方法

Also Published As

Publication number Publication date
FR2726076B1 (fr) 1996-11-29
FR2726076A1 (fr) 1996-04-26

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