EP0686823A1 - Wärmetauscher, insbesondere für die Kühlung eines Luftstromes mit hoher Temperatur - Google Patents

Wärmetauscher, insbesondere für die Kühlung eines Luftstromes mit hoher Temperatur Download PDF

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Publication number
EP0686823A1
EP0686823A1 EP95108599A EP95108599A EP0686823A1 EP 0686823 A1 EP0686823 A1 EP 0686823A1 EP 95108599 A EP95108599 A EP 95108599A EP 95108599 A EP95108599 A EP 95108599A EP 0686823 A1 EP0686823 A1 EP 0686823A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
shells
rim
shell
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.)
Granted
Application number
EP95108599A
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English (en)
French (fr)
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EP0686823B1 (de
Inventor
Jean-Louis Laveran
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
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Application filed by Valeo Thermique Moteur SA filed Critical Valeo Thermique Moteur SA
Publication of EP0686823A1 publication Critical patent/EP0686823A1/de
Application granted granted Critical
Publication of EP0686823B1 publication Critical patent/EP0686823B1/de
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
    • 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
    • F28D1/05358—Assemblies of conduits connected side by side or with individual headers, e.g. section type radiators
    • 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
    • F28F9/0221—Header boxes or end plates formed by stacked elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2280/00—Mounting arrangements; Arrangements for facilitating assembling or disassembling of heat exchanger parts
    • F28F2280/04—Means for preventing wrong assembling of parts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49389—Header or manifold making

Definitions

  • the invention relates to a heat exchanger of the type comprising a bundle of tubes mounted between two manifolds.
  • a first fluid generally water
  • heat after having undergone a heat exchange with another fluid, generally an air flow, which sweeps the tubes of the bundle.
  • Such heat exchangers are mainly used as air / water exchangers and find various applications in the automobile industry, in particular for being used for cooling an engine or for heating the passenger compartment.
  • heat exchangers of this type could not prevail, given the high temperatures involved, for the treatment of a flow of air at high temperature, such as cooling a flow of air from the turbocharger of a motor or industrial vehicle.
  • the air flow from a turbocharger is at a high temperature, generally of the order of 250 ° C, which must be lowered to a temperature of the order of 100 ° C by heat exchange with cooling water or cooling air.
  • plate and strip heat exchangers which include two fluid boxes, a multiplicity of intermediate strips arranged by pairs, as well as a multiplicity of plates arranged in pairs to frame the pairs of bars and form, in collaboration with them, fluid circulation channels.
  • a heat exchanger of this type is known in particular from French Patent No 80 06704 published under No 2 479 438.
  • the main drawback of plate and strip heat exchangers lies in the complexity of assembling the different elements that compose it.
  • the object of the invention is in particular to overcome such a drawback.
  • It also aims to provide a heat exchanger of the type with manifolds and tube bundle which can be used for different applications and in particular for the treatment of a high temperature air flow such as air flow from a turbocharger.
  • Another object of the invention is to provide such a heat exchanger which can be easily assembled, in particular by brazing.
  • each manifold comprises a stack of shells joined in pairs, in which each shell comprises a closed side wall, one end of which is connected to an outer plane rim and the other end of which is connected to an inner plane rim which extends parallel to the outer plane rim and which defines an axial opening, and in which the side wall of each shell delimits a lateral opening, the section of which is adapted to the straight half-section of a tube, so that the shells can be assembled in pairs, alternately by their inner edges and by their outer edges, delimiting an internal chamber over the entire length of the stack and that the ends of the tubes can each be received in the two lateral openings joined together of two adjacent shells.
  • each of the manifolds is formed by a stack of shells, that is to say elements in the form of bowls, which can be assembled two by two together and which can also be assembled at the ends of the tubes of the bundle.
  • Such a heat exchanger can be easily produced by brazing the shells and the tubes together, said shells and said tubes being formed from a suitable metal alloy.
  • a heat exchanger of this type is particularly suitable for cooling the charge air coming from a turbocharger, the charge air entering one of the collecting chambers, then traversing the tubes of the bundle before returning and leaving the other collecting chamber.
  • the high-temperature charge air is advantageously cooled by an air flow which scans the tubes of the bundle.
  • the lateral opening of a shell is delimited by a region set back from the inner rim, which region is closer to the plane of the outer rim than is the plane of the inner rim.
  • the tubes each have a substantially rectangular cross section delimited by two long sides and two short sides, the region set back from the inner rim comprising a central part of length substantially equal to a large side and two parts side length substantially equal to half a short side.
  • their two lateral openings define a complete opening of section adapted to the cross section of a tube.
  • the region set back from the inner rim is connected to a substantially rectilinear region of the side wall.
  • the side wall further comprises a region substantially in a semicircle which is connected to this rectilinear region.
  • the side wall has a tapered shape which widens from the inner plane rim towards the outer plane rim.
  • This particular structure facilitates the production of a shell by stamping or punching using an appropriate punch.
  • the outer rim of each shell comprises indexing means capable of ensuring correct positioning of the two shells of the same pair with a view to their assembly by their respective outer rims.
  • indexing means can take different forms.
  • the means for indexing a shell comprise two folded legs each formed in a punctured by the outer rim and suitable for entering a corresponding opening in another shell. These tabs can play the role of indexing tabs and / or crimping tabs.
  • each element comprises at least one folding crimping tab formed at the periphery for the assembly of the two shells of the same pair.
  • the heat exchanger of the invention advantageously comprises heatsinks or corrugated spacers arranged on either side of the tubes of the bundle.
  • the heat exchanger comprises an end cheek which extends parallel to the tubes and which is assembled with the two shells situated at a first end of each manifold, said cheek being equipped with two tubes used respectively for the admission and evacuation of a fluid passing through the fluid boxes and the tubes of the bundle, while the two shells located at a second end of each manifold are closed.
  • These latter shells are either closed by a common cheek, or consist of specific shells with a continuous bottom at the level of the internal flat rim.
  • the heat exchanger shown in FIG. 1 comprises a fluid box 10 connected to an intake manifold 12, a fluid box 14 connected to an exhaust manifold 16 and a bundle 18 mounted between the two manifolds 10 and 14.
  • the bundle 18 is formed by a multiplicity of parallel tubes 20, of rectangular section, the ends of which respective lead into the two manifolds. Between the tubes 20 are further arranged heatsinks 22 having the form of corrugated spacers.
  • the heat exchanger is adapted to be traversed by a first fluid, for example charge air from a turbocharger, which enters the manifold 10 through the pipe 12, then travels through the tubes 20 to reach the box manifold 14 and leave the latter via the discharge pipe 16, as shown by the arrows F1.
  • a first fluid for example charge air from a turbocharger
  • This first fluid exchanges heat with a second fluid which scans the beam 18 as shown by the arrow F2.
  • Each of the manifolds 10 and 14 comprises a stack of identical shells assembled in pairs and in an alternating fashion, one of which is shown in perspective in FIG. 2.
  • the shell 24 is formed by stamping or punching from a metal sheet, preferably made of stainless steel.
  • the shell 24 comprises a closed side wall 26 having a substantially rectilinear region 28 which is connected to a substantially semi-circular region 30.
  • the wall 26 is connected to an outer flat rim 32 which has a substantially straight portion 34 connected to the region 28 of the wall 26 as well as a portion 36 of substantially semi-circular shape which connects to the region 30 of the wall 26.
  • the flange 32 extends radially outwards from the wall 26.
  • the wall 26 is connected to an internal flat rim 38 which extends parallel to the external flat rim 32 and which delimits an axial opening 40 of substantially semi-circular shape.
  • the internal rim 38 extends radially inwards from the wall 26.
  • the wall 26 is formed as a clearance so as to flare from the inner plane edge 38 towards the outer plane edge 32.
  • the internal flat rim 38 comprises a substantially semi-circular portion 42 extending in the general plane of the rim 38 and connecting to the region 30 of the wall 26.
  • the portion 42 is connected to a region set back which is also part of the inner rim and which is closer to the plane of the outer rim than is the plane of the inner rim.
  • This recessed region comprises a central part 44 (FIGS. 2 to 4) which extends parallel to the plane of the two flanges 32 and 38 as well as two lateral parts 46 connecting the central part 44 to the portion 42.
  • the shells 24 are intended to be stacked and assembled in pairs alternately by their inner edges 38 and by their outer edges 32. This allows to define an internal chamber 48 ( Figure 3) extending over the entire height of the stack.
  • the tubes 20 have a cross section of substantially rectangular shape delimited by two long sides and two short sides.
  • the central part 44 of the recessed region has a length substantially equal to a long side, while the two lateral parts 46 have a length substantially equal to half of a short side.
  • the central part 44 and the two lateral parts 46 of the same shell 24 delimit a lateral opening which corresponds substantially to the straight half-section of a tube.
  • the bundle 18 formed by the tubes 20 and the heatsinks 22 is mounted between the manifolds 10 and 14 each formed by a stack of shells 24.
  • the tubes 20 and the heatsinks 22 are advantageously formed from a stainless steel alloy and aluminum.
  • the heat exchanger comprises two end flanges 52 and 54 located respectively in the upper part and in the lower part in the position of FIG. 1.
  • the cheek 52 extends parallel to the tubes 20 and is assembled with the two shells 24 situated at the upper end of the manifolds 10 and 14. This cheek 52 is itself equipped with the pipes 12 and 16.
  • the cheek 54 extends parallel to the tubes and is assembled with the two shells 24 situated respectively at the opposite ends of the manifolds 10 and 14.
  • the cheek 54 thus makes it possible to close the last shell of the stack of the manifold 10 or of the manifold 14.
  • the portion 34 of the outer rim 32 comprises two indexing tabs 56 formed in punctures and two openings 58 of corresponding shape.
  • FIGS. 5 to 7 we now refer to the embodiment of FIGS. 5 to 7 in which the elements common with those of the first embodiment are defined by the same reference numerals increased by 100.
  • the shell 124 is similar to the shell 24 described above. It differs from the latter in that the outer flat edge 132 has a substantially rectangular shape with four rounded angles instead of a substantially semi-circular shape.
  • the rim 132 comprises two indexing tabs 156 formed in punctures in a region 136 of the rim located on the side of the semi-circular region 130 of the side wall 124.
  • This region 136 continues with a folded edge 137 which extends in a plane parallel to the direction of the stack.
  • the flanges 137 define a support plane on which is assembled a support plate 160 comprising a core 162 to which a wing 164 is connected perpendicularly ( Figures 5 and 6).
  • the shell 124 also differs from the shell 24 in that the opening 140 is crossed radially by a bridge of material 141.
  • FIG. 6 shows, seen in section, the constitution of the heat exchanger respectively at the level of the section planes VI (A), VI (B) and VI (C) of FIG. 5.
  • FIGS. 8 to 9 constitutes a variant of the embodiment of FIGS. 5 to 7.
  • the common elements are designated by the same numerical references increased by 100.
  • the outer rim 232 has, in its region 234, a tab 259 which occupies less than half a width of the shell.
  • FIGS. 10 and 11 constitutes a variant of that of FIGS. 8 and 9.
  • the elements common with those of the preceding embodiment are designated by the same numerical references increased by 100.
  • the main difference lies in the fact that the crimping lug 359 extends over a narrower width.
  • the indexing lugs 256 also serve as crimping lugs, as shown in FIG. 11.
  • the indexing lugs 356 are folded back to also serve as crimping lugs.
  • the lugs 359 are folded back to ensure crimping.
  • the invention is not limited to a heat exchanger used for cooling an air flow by heat exchange with another air flow and that it can be used to provide heat exchange between d other types of fluids.

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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)
EP95108599A 1994-06-08 1995-06-06 Wärmetauscher, insbesondere für die Kühlung eines Luftstromes mit hoher Temperatur Expired - Lifetime EP0686823B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9407026 1994-06-08
FR9407026A FR2721099B1 (fr) 1994-06-08 1994-06-08 Echangeur de chaleur utile notamment pour le refroidissement d'un flux d'air à haute température.

Publications (2)

Publication Number Publication Date
EP0686823A1 true EP0686823A1 (de) 1995-12-13
EP0686823B1 EP0686823B1 (de) 2001-07-25

Family

ID=9464012

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95108599A Expired - Lifetime EP0686823B1 (de) 1994-06-08 1995-06-06 Wärmetauscher, insbesondere für die Kühlung eines Luftstromes mit hoher Temperatur

Country Status (4)

Country Link
US (1) US5634519A (de)
EP (1) EP0686823B1 (de)
DE (1) DE69521843T2 (de)
FR (1) FR2721099B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2834336A1 (fr) * 2001-12-28 2003-07-04 Valeo Thermique Moteur Sa Element de circuit pour echangeur de chaleur, notamment de vehicule automobile et echangeur de chaleur ainsi obtenu
FR2947045A1 (fr) * 2009-06-23 2010-12-24 Valeo Systemes Thermiques Bloc d'echangeur de chaleur, en particulier pour condenseur de climatisation

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6170567B1 (en) * 1996-12-05 2001-01-09 Showa Aluminum Corporation Heat exchanger
CA2215173C (en) * 1997-09-11 2004-04-06 Thomas F. Seiler Stepped dimpled mounting brackets for heat exchangers
US6467536B1 (en) * 1999-12-22 2002-10-22 Visteon Global Technologies, Inc. Evaporator and method of making same
DE10237648A1 (de) * 2002-08-13 2004-02-26 Behr Gmbh & Co. Wärmeübertrager
FR2880671B1 (fr) * 2005-01-12 2007-04-06 Valeo Systemes Thermiques Embout de tube pour element de circuit hydraulique, en particulier pour echangeur de chaleur
SE530574C2 (sv) * 2006-11-20 2008-07-08 Alfa Laval Corp Ab Plattvärmeväxlare
DE102008053308A1 (de) * 2008-10-27 2010-04-29 Behr Industry Gmbh & Co. Kg Wärmetauscher
JP2022117538A (ja) * 2021-02-01 2022-08-12 パナソニックＩｐマネジメント株式会社 プレートフィン積層型熱交換器およびそれを用いた冷凍システム
FR3135830A1 (fr) * 2022-05-20 2023-11-24 Valeo Systemes Thermiques Dispositif de régulation thermique, notamment de refroidissement pour véhicule automobile.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2194933A1 (de) * 1972-07-28 1974-03-01 Volkswagenwerk Ag
FR2337867A1 (fr) * 1976-01-12 1977-08-05 Chausson Usines Sa Echangeur de chaleur a collecteurs epais
FR2479438A1 (fr) 1980-03-26 1981-10-02 Chausson Usines Sa Echangeur pour le refroidissement d'un fluide a haute temperature
FR2563899A1 (fr) * 1984-05-04 1985-11-08 Piemontese Radiatori Radiateur pour vehicules automobiles
EP0324226A1 (de) * 1988-01-12 1989-07-19 Thermag Industries Inc Wärmeaustauscher mit individuellen Endkammern

Family Cites Families (12)

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US1736906A (en) * 1927-07-26 1929-11-26 Flintermann Gerhard Heat-exchange device
US1731575A (en) * 1927-09-22 1929-10-15 Mccord Radiator & Mfg Co Evaporator unit
FR1448155A (fr) * 1965-06-17 1966-01-28 Chausson Usines Sa Faisceau de radiateur à éléments empilés
US3650321A (en) * 1969-11-21 1972-03-21 Tranter Mfg Inc Sheet metal radiator assembly
US4011905A (en) * 1975-12-18 1977-03-15 Borg-Warner Corporation Heat exchangers with integral surge tanks
US4258785A (en) * 1980-02-08 1981-03-31 Borg-Warner Corporation Heat exchanger interplate fitting
GB2196730B (en) * 1986-10-21 1991-06-26 Austin Rover Group A heat exchanger
US5046555A (en) * 1990-09-06 1991-09-10 General Motors Corporation Extended surface tube-to-header connection for condenser
JPH0755373B2 (ja) * 1990-09-18 1995-06-14 住友軽金属工業株式会社 アルミニウム合金クラッド材および熱交換器
US5086832A (en) * 1990-09-26 1992-02-11 General Motors Corporation Mechanically interlocked multi tube heat exchanger core
JPH04363592A (ja) * 1991-06-07 1992-12-16 Nippondenso Co Ltd 積層型熱交換器
US5176205A (en) * 1991-06-27 1993-01-05 General Motors Corp. Corrosion resistant clad aluminum alloy brazing stock

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2194933A1 (de) * 1972-07-28 1974-03-01 Volkswagenwerk Ag
FR2337867A1 (fr) * 1976-01-12 1977-08-05 Chausson Usines Sa Echangeur de chaleur a collecteurs epais
FR2479438A1 (fr) 1980-03-26 1981-10-02 Chausson Usines Sa Echangeur pour le refroidissement d'un fluide a haute temperature
FR2563899A1 (fr) * 1984-05-04 1985-11-08 Piemontese Radiatori Radiateur pour vehicules automobiles
EP0324226A1 (de) * 1988-01-12 1989-07-19 Thermag Industries Inc Wärmeaustauscher mit individuellen Endkammern

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2834336A1 (fr) * 2001-12-28 2003-07-04 Valeo Thermique Moteur Sa Element de circuit pour echangeur de chaleur, notamment de vehicule automobile et echangeur de chaleur ainsi obtenu
WO2003056268A1 (fr) * 2001-12-28 2003-07-10 Valeo Thermique Moteur Elément de circuit pour échangeur de chaleur, notamment de véhicule automobile et échangeur de chaleur ainsi obtenu
FR2947045A1 (fr) * 2009-06-23 2010-12-24 Valeo Systemes Thermiques Bloc d'echangeur de chaleur, en particulier pour condenseur de climatisation
WO2010149452A1 (fr) * 2009-06-23 2010-12-29 Valeo Systemes Thermiques Bloc d'échangeur de chaleur, en particulier pour condenseur de climatisation

Also Published As

Publication number Publication date
DE69521843D1 (de) 2001-08-30
DE69521843T2 (de) 2002-04-04
EP0686823B1 (de) 2001-07-25
US5634519A (en) 1997-06-03
FR2721099A1 (fr) 1995-12-15
FR2721099B1 (fr) 1996-07-19

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