EP0647824B1 - Wärmetauscher, insbesondere als Ölkühler benutzt - Google Patents

Wärmetauscher, insbesondere als Ölkühler benutzt Download PDF

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Publication number
EP0647824B1
EP0647824B1 EP19940202947 EP94202947A EP0647824B1 EP 0647824 B1 EP0647824 B1 EP 0647824B1 EP 19940202947 EP19940202947 EP 19940202947 EP 94202947 A EP94202947 A EP 94202947A EP 0647824 B1 EP0647824 B1 EP 0647824B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
cross member
stack
exchanger according
plate
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.)
Expired - Lifetime
Application number
EP19940202947
Other languages
English (en)
French (fr)
Other versions
EP0647824A1 (de
Inventor
Jean Louis Laveran
Gilles Caumel
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 EP0647824A1 publication Critical patent/EP0647824A1/de
Application granted granted Critical
Publication of EP0647824B1 publication Critical patent/EP0647824B1/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
    • F28D1/03—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 plate-like or laminated conduits
    • F28D1/0308—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other
    • F28D1/0325—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another
    • F28D1/0333—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another the plates having integrated connecting members
    • 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
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core

Definitions

  • the invention relates to a heat exchanger which can be used in particular as an oil radiator for cooling the lubricating oil of a motor vehicle, in particular of a heavy vehicle.
  • the plates and the fins are usually joined together by brazing and there are further provided two housings fixed directly on an end plate to allow the entry and exit of the fluid to cool, usually oil.
  • Such a known heat exchanger is usually fixed to the vehicle by fixing means brazed to the flat tubes.
  • the object of the invention is in particular to overcome this drawback.
  • a heat exchanger of the aforementioned type which comprises an elongated cross member applied against a plate located at one end of the stack, provided with two passages communicating respectively with the two series of aligned openings and having a deformable shaped part dilatation lyre to allow a modification of its length, as well as two angle brackets integral with the crosspiece and bearing against the plate located at the other end of the stack.
  • the cross member and the two square flanges tightly surround the stack of flat tubes, whatever the temperatures of the fluid entering and leaving the heat exchanger.
  • the expansion lyre presented by the cross-member allows, by spring effect, to exert an excellent contact on the flat tubes in order to have a good brazing.
  • the cross member comprises a flat rectangular flange having a transverse U-shaped fold constituting the aforementioned expansion lyre.
  • the length of the flange can be modified, either in the direction of increase, or in the direction of decrease.
  • the cross member has two opposite lateral edges extending perpendicular to the plane of the flange and serving for fixing the two angle flanges.
  • the cross member further comprises at least one longitudinal edge extending perpendicular to the plane of the flange and serving for fixing the heat exchanger.
  • each square flange comprises a first branch extending parallel to the direction of the stack and bearing against the ends of the plates and a second branch extending parallel to the cross member and pressing against the plate located at the other end of the stack.
  • the square and the two flanges thus form a frame surrounding the stack of flat tubes.
  • the first branch of one of the flanges advantageously comprises a fixing wing folded at a right angle.
  • This wing can be used for fixing the heat exchanger in the motor vehicle.
  • the respective second branches of the two flanges terminate respectively in two adjacent oblique edges. Two independent flanges are thus produced for which the interval between the two adjacent oblique edges can vary.
  • the two respective branches of the two flanges are joined together by means of an expansion lyre.
  • the two flanges are integral with one another.
  • the heat exchanger comprises two housings attached to the cross member, respectively opposite the two passages and provided respectively with an inlet pipe and an outlet pipe for the fluid.
  • the two boxes can be provided beforehand on the cross member, which then facilitates the assembly of the cross member and the two flanges on the flat tubes.
  • the flat tubes, the fins, the cross member and the flanges are brazed together.
  • the heat exchanger of the invention comprises a multiplicity of flat tubes 10 arranged juxtaposed to form a stack in a stacking direction XX ( Figure 2).
  • Each of the flat tubes 10 is formed by two opposite elongated plates 12 delimiting between them a blade 14 for circulating a fluid, for example lubricating oil of an engine or oil of the gearbox of a motor vehicle, for example of a heavy vehicle.
  • Each of the blades 12 has a generally rectangular shape and has a peripheral edge 16 forming an assembly lip to allow the tight connection with a similar plate located opposite.
  • Each of the plates 12 has two bosses 18 and 20 provided respectively in two opposite regions of the plates, said regions being spaced apart in the longitudinal direction of the plates.
  • the bosses 18 and 20 constitute plate heads and are provided with an opening 22 and an opening 24 respectively.
  • each of the openings 22, as well as each of the openings 24, is a double opening but it could be a single opening.
  • the openings 22 are aligned with each other in the direction XX and allow the fluid to enter the blades 14. This fluid then leaves the blades 14 through the openings 24 which, too, are aligned with each other in the direction XX.
  • each of the blades 14 is placed a disturbing element 25 (shown only in FIG. 1) to disturb the flow of the fluid flowing in the blades and improve the heat exchange with the air.
  • the heat exchanger further comprises a multiplicity of corrugated fins 26 interposed between the flat tubes 10 and adapted to be swept by an air flow passing between the flat tubes 10.
  • the fins 26 have a generally rectangular shape and they are 'each extend between the bosses 18 and 20. They have substantially the same width as the tubes 10 but have a shorter length.
  • the heat exchanger as just described so far has a structure in itself known.
  • the plates 12 forming the flat tubes 10 and the fins 26 are assembled by brazing.
  • the heat exchanger comprises an elongated cross member 28 applied against that of the plates 12 located at the upper end of the stack.
  • the cross member 28 comprises a rectangular flange 30 of generally planar shape having substantially the same dimensions as the plate 12.
  • the rectangular flange 30 bears against the two bosses 18 and 20 of the corresponding plate 12.
  • the rectangular flange 30 has a transverse fold 32 with a U-shaped or omega-shaped section which constitutes a lyre of dilation allowing a modification of the length of the flange 30, either in the direction of increase, or in the direction of decrease.
  • each of the passages is formed by a double contour opening similar to that of the double openings 22 and 24, respectively.
  • the cross member 28 further comprises two opposite lateral edges 38 and 40 extending perpendicular to the plane of the flange 30 and serving respectively for fixing two flanges 42 and 44 in the form of brackets.
  • the cross member 28 further comprises a longitudinal edge 46 extending perpendicular to the plane of the flange 30 and used for fixing the heat exchanger.
  • the flange 46 has a buttonhole 48.
  • the cross member 28 also has a longitudinal flange 47 extending over part of the length of the flange.
  • the flange 42 comprises a first branch 50 extending parallel to the direction XX of the stack and coming to bear against the ends of the plates as well as a second branch 52 extending parallel to the flange 30 of the cross member and pressing against the plate 12 located at the other end of the stack.
  • the flange 44 comprises a first branch 54 extending parallel to the direction XX and coming to bear against the ends of the plates and a second branch 56 extending parallel to the flange 30 and pressing against the plate located at the other end, or lower end, of the stack.
  • the first branch of the flange 44 comprises a fixing wing 58 bent at a right angle and provided with two oblong holes 60.
  • the respective second branches 52 and 56 of the two flanges end respectively by two adjacent oblique edges 62 and 64 separated by a small interval.
  • This interval can increase or decrease according to the differences in expansion undergone by the flat tubes 10 as a function of the inlet and outlet temperatures of the fluid passing through them.
  • the two branches 52 and 56 could be joined together by a dilatation lyre similar to the lyre 32 described above.
  • the heat exchanger also comprises two housings 66 and 68 ( Figure 1) each formed from a stamped sheet metal and attached to the flange 30 of the cross member respectively opposite the two passages 34 and 36.
  • the housings 66 and 68 are provided respectively an inlet pipe 70 and an outlet pipe 72 for the fluid, for example oil, intended to be cooled.
  • the assembly constituted by the cross member 28 and the two flanges 42 and 44 constitutes a kind of frame which comes to tightly surround the stack of flat tubes 10 and fins 26, whatever the expansions undergone by the assembly in function differences in fluid temperature between the inlet and outlet of the heat exchanger.
  • the flat tubes 10 plates 12
  • the fins 26, the cross member 28 and the flanges 42 and 44 are advantageously joined together by brazing.
  • the heat exchanger of the invention is very particularly intended for the cooling of the lubricating oil of the engine or of the gearbox of a motor vehicle, in particular of a heavy vehicle.

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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)

Claims (10)

  1. Wärmetauscher, bestehend aus:
    - einer Vielzahl von Flachrohren (10) in Stapelanordnung, die jeweils durch zwei gegenüberliegende längliche Platten (12) gebildet werden, die eine zwischen ihnen liegende Durchflußlamelle (14) für eine Flüssigkeit begrenzen, wobei die Lamellen (14) untereinder durch zwei Reihen von Öffnungen (22, 24) in Verbindung stehen, die in Richtung (XX) des Stapels aufeinander ausgerichtet und jeweils in gegenüberliegenden Bereichen (18, 20) der Platten vorgesehen sind, und
    - einer Vielzahl von gewellten Rippen (26), die zwischen den Flachrohren (10) angeordnet sind und von einem Luftstrom beströmt werden können,
    dadurch gekennzeichnet, daß er einen länglichen Querträger (28) umfaßt, der auf einer an einem Ende des Stapels befindlichen Platte (12) anliegt und mit zwei Durchgängen (34, 36) versehen ist, die jeweils mit einer der beiden Reihen von aufeinander ausgerichteten Öffnungen (22, 24) in Verbindung stehen, und der einen verformbaren Teil in Form eines Rohrbogenausgleichers (32) aufweist, der eine Veränderung seiner Länge ermöglicht, sowie zwei winkelförmige Flansche (42, 44), die fest mit dem Querträger (28) verbunden sind und an der Platte (12) anliegen, die am anderen Ende des Stapels angeordnet ist.
  2. Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, daß der Querträger (28) eine flache rechteckige Scheibe (30) umfaßt, die eine U-förmige Querbiegung aufweist, die den vorgenannten Rohrbogenausgleicher (32) bildet.
  3. Wärmetauscher nach Anspruch 2, dadurch gekennzeichnet, daß der Querträger (28) zwei gegenüberliegende Seitenrandleisten (38, 40) umfaßt, die sich senkrecht zur Ebene der Scheibe (30) erstrekken und zur Befestigung der beiden Flansche (42, 44) dienen.
  4. Wärmetauscher nach Anspruch 3, dadurch gekennzeichnet, daß der Querträger (28) außerdem mindestens eine Längsrandleiste (46) umfaßt, die sich senkrecht zur Ebene der Scheibe (30) erstreckt und zur Befestigung des Wärmetauschers dient.
  5. Wärmetauscher nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß jeder Flansch (42, 44) einen ersten Schenkel (50, 54), der sich parallel zur Richtung (XX) des Stapels erstreckt und an den Enden der Platten (12) zur Anlage kommt, und einen zweiten Schenkel (52, 56) umfaßt, der sich parallel zum Querträger (28) erstreckt und an der Platte (12) anliegt, die am anderen Ende des Stapels angeordnet ist, wobei der Querträger (28) und die beiden Flansche (42, 44) einen Rahmen bilden, der den Stapel der Flachrohre (10) umgibt.
  6. Wärmetauscher nach Anspruch 5, dadurch gekennzeichnet, daß der erste Schenkel (54) eines (44) der winkelförmigen Flansche einen rechtwinklig gebogenen Befestigungsflügel (58) umfaßt.
  7. Wärmetauscher nach einem der Ansprüche 5 und 6, dadurch gekennzeichnet, daß die zweiten Schenkel (52, 56) der beiden Flansche (42, 44) in zwei einander zugekehrten Schrägkanten (62, 64) enden.
  8. Wärmetauscher nach einem der Ansprüche 5 und 6, dadurch gekennzeichnet, daß die zwei Schenkel (52, 56) der beiden Flansche (42, 44) über einen Rohrbogenausgleicher miteinander verbunden sind.
  9. Wärmetauscher nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß er zwei am Querträger (28) gegenüber den beiden Durchgängen (34, 36) angesetzte Gehäuse (66, 68) umfaßt, die mit einem Einlaßstutzen (70) bzw. mit einem Auslaßstutzen (72) für die Kühlflüssigkeit versehen sind.
  10. Wärmetauscher nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Flachrohre (10), die Rippen (26), der Querträger (28) und die Flansche (42, 44) verlötet sind.
EP19940202947 1993-10-11 1994-10-07 Wärmetauscher, insbesondere als Ölkühler benutzt Expired - Lifetime EP0647824B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9312078A FR2711235B1 (fr) 1993-10-11 1993-10-11 Echangeur de chaleur utile notamment comme radiateur d'huile.
FR9312078 1993-10-11

Publications (2)

Publication Number Publication Date
EP0647824A1 EP0647824A1 (de) 1995-04-12
EP0647824B1 true EP0647824B1 (de) 1997-07-09

Family

ID=9451713

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940202947 Expired - Lifetime EP0647824B1 (de) 1993-10-11 1994-10-07 Wärmetauscher, insbesondere als Ölkühler benutzt

Country Status (4)

Country Link
EP (1) EP0647824B1 (de)
DE (1) DE69404108T2 (de)
ES (1) ES2104264T3 (de)
FR (1) FR2711235B1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6328098B1 (en) * 1998-11-10 2001-12-11 Valeo Inc. Side member for heat exchanger and heat exchanger incorporating side plate
DE10058710B4 (de) * 1999-12-17 2011-01-27 Behr Gmbh & Co. Kg Wärmeübertrager, insbesondere für Kraftfahrzeuge
JP2002147973A (ja) * 2000-08-30 2002-05-22 Denso Corp 複式熱交換器
DE102004013399A1 (de) * 2004-01-22 2005-10-06 Behr Gmbh & Co. Kg Rahmenteil für einen Röhrenwärmetauscher
JP4604759B2 (ja) * 2005-02-22 2011-01-05 株式会社デンソー 熱交換器
DE102009012784A1 (de) 2009-03-13 2010-09-16 Behr Gmbh & Co. Kg Wärmeübertrager
FR2958389B1 (fr) * 2010-03-31 2012-07-13 Valeo Systemes Thermiques Echangeur de chaleur et lame pour l'echangeur
FR2977307B1 (fr) 2011-06-30 2013-08-09 Valeo Systemes Thermiques Boitier d'echangeur a plaques empilees et echangeur comprenant un tel boitier

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4403648A (en) * 1979-06-11 1983-09-13 Caterpillar Tractor Co. Engine radiator support and guard assembly
GB2196730B (en) * 1986-10-21 1991-06-26 Austin Rover Group A heat exchanger
FR2627579B1 (fr) * 1988-02-23 1990-10-05 Valeo Chausson Thermique Echangeur de chaleur, notamment radiateur de refroidissement, en particulier pour vehicule automobile
FR2631108B1 (fr) * 1988-05-04 1990-12-07 Valeo Chausson Thermique Echangeur de chaleur, notamment radiateur de refroidissement pour vehicule automobile

Also Published As

Publication number Publication date
FR2711235A1 (fr) 1995-04-21
EP0647824A1 (de) 1995-04-12
ES2104264T3 (es) 1997-10-01
FR2711235B1 (fr) 1996-01-19
DE69404108T2 (de) 1997-10-30
DE69404108D1 (de) 1997-08-14

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