EP0676609B1 - Wärmetauscher - Google Patents

Wärmetauscher Download PDF

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Publication number
EP0676609B1
EP0676609B1 EP19950302337 EP95302337A EP0676609B1 EP 0676609 B1 EP0676609 B1 EP 0676609B1 EP 19950302337 EP19950302337 EP 19950302337 EP 95302337 A EP95302337 A EP 95302337A EP 0676609 B1 EP0676609 B1 EP 0676609B1
Authority
EP
European Patent Office
Prior art keywords
groove
heat exchanger
surface extender
exchanger assembly
extender
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
EP19950302337
Other languages
English (en)
French (fr)
Other versions
EP0676609A1 (de
Inventor
Bjorn Wijkstrom
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.)
Titanx Engine Cooling AB
Original Assignee
Valeo Engine Cooling AB
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 Engine Cooling AB filed Critical Valeo Engine Cooling AB
Publication of EP0676609A1 publication Critical patent/EP0676609A1/de
Application granted granted Critical
Publication of EP0676609B1 publication Critical patent/EP0676609B1/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
    • 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
    • F28F9/0234—Header boxes; End plates having a second heat exchanger disposed there within, e.g. oil cooler
    • 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
    • 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
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0089—Oil coolers
    • 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

Definitions

  • the present invention relates to a heat exchanger according to the preamble of claim 1.
  • a conventional solution is for the oil cooler for cooling to make use of the liquid in a tank belonging to the vehicle cooler.
  • One solution known to the applicant, which is satisfactory per se shows how the tank of a previously known vehicle cooler is utilized as part of an oil cooler, i.e. the oil cooler has a common limit wall with the vehicle cooler tank. This is realized by virtue of the fact that the roof of the tank has a drawn-in portion, which, together with a rectangular plate, forms a pipe in which there is placed a surface extender. The pipe then has an inlet and an outlet to form a complete oil cooler.
  • the parts of the oil cooler like other parts in the associated vehicle cooler, are interconnected by hard-soldering in a vacuum furnace.
  • One feature of an embodiment of the invention is a heat exchanger which has common boundary walls with another heat exchanger and which, in the assembly, is entirely self-securing.
  • Another feature is the elimination of the need for a separate plate.
  • a heat exchanger assembly comprising a first heat exchanger and a second heat exchanger, said second heat exchanger having a chamber, through which flows the fluid to be treated, an inlet and an outlet for the fluid, and a surface extender disposed in the chamber, said chamber comprising an external groove formed by a wall portion of a tank of said first heat exchanger, whereby said groove is disposed within said tank, and sealing means for sealing the groove, characterised in that the sealing means comprises a portion of the surface extender which seals the longitudinally extending opening of the groove.
  • Fig. 1 shows an oil cooler, and a vehicle cooler tank which is generally denoted by 2 and which forms part of the oil cooler.
  • the vehicle cooler tank 2 has an elongate middle piece 3, two end pieces 4, 5 and an elongate end plate 6.
  • the end plate 6 is connected to a heat-exchanger assembly 7, which, together with the cooler tank, forms part of a vehicle cooler.
  • the middle piece 3 consists of a bent or rolled, principally U-shaped sheet having a web 8 and two flanges 9, 10.
  • Said web 8 is provided, in its middle portion, with an elongate groove 11 having a base wall 12 and two side walls 13, 14.
  • the side walls 13, 14, in their uppermost portions at the transition to said web, are slightly angled or conical in the inward direction towards the middle of the groove, thereby forming the undercut surfaces 15, 16.
  • the end pieces 4, 5 are cup-shaped and are formed along their sides with guide flanges 17, 18 for fitting-together with the end plate 6.
  • the guide flanges 17, 18 also have fixing lips 19, 20 extending essentially perpendicularly inwards from the guide flanges 17, 18.
  • the mouth of the cup is provided with a connecting tongue 21 in which there is incorporated a hole 22.
  • the end face of the end piece has, furthermore, a fixing tongue 33.
  • the end plate 6 consists of a U-shaped sheet, which has a web 23, forming the base of the vehicle cooler tank, and two flanges 24, 25.
  • the V-shaped grooves are arranged for the reception of the edge portions of the flanges 9, 10 of the middle piece, while the outer portions of the flanges 24, 25 of the end plate, i.e. those which are not bent, are arranged to receive the guide flanges 17, 18 of the end pieces 4, 5, as can be seen from the arrows in the figure.
  • the oil cooler has inner limit walls in the form of the base wall 12 and side walls 13, 14 of the groove 11.
  • the oil cooler further comprises an elongate, essentially zig-zag shaped surface extender 29 and two connecting pipes 28, 30.
  • the surface extender 29 has a wedge-shaped upper portion 33 with an essentially flat top surface and two obliquely angled side surfaces, while the connecting pipes 28, 30 have an open and a closed end and are designed having an axial slot 31 in their one circumferential portion.
  • the connecting pipe 28, 30 has moreover, at its upper open end, a guide pin 32.
  • the surface extender 29 is placed in the groove 11 so that its base bears against the base wall 12 of the groove and its wedge-shaped portion 33 bears with its side surfaces tightly against the undercut, conical surfaces 15, 16 of the side walls 13, 14 in the groove, the conical portion 33 of the surface extender 29, together with the undercut, conical surfaces 15, 16, forming the top wall of the oil cooler.
  • the middle piece 3 is pressed apart at the groove 11 to enable the surface extender 29 to be placed in the groove 11.
  • the surface extender is slightly biased in the groove upwards against the undercut surfaces 15, 16, thereby enabling the tight contact between the side surfaces of the wedge-shaped portion 33 of the surface extender and the undercut surfaces 15, 16.
  • the bias is realized by virtue of the fact that the surface extender 29, before being placed in the groove, is longer than the depth of the groove, i.e. the surface extender 29 is slightly compressed in the groove 11.
  • the middle piece In the assembled position of the vehicle cooler tank, the middle piece is disposed on top of the end plate, the lower portions of the respective flanges 9, 10 being disposed in the grooves 26, 27 such that the edges of the flanges rest against the base of the V-shaped grooves.
  • the outer, free flanges of the grooves 26, 27, i.e. the bent-up part of the flanges, are clamped for contact against the flanges of the middle piece.
  • the end pieces 4, 5 are then slid onto the end plate 6 so that their guide flanges 17, 18 are disposed outside and bear against the flanges 24, 25 of the end plate 6.
  • the fixing lips 19, 20 are folded inwards round the edges of the flanges 24, 25, while the fixing tongue 133 is folded round the end-face edge of the end plate. All for the purpose of fixing the end piece to the end plate.
  • the connecting pipes 28, 30 are connected to the end pieces 4, 5 by their upper open end being disposed in the hole 22 incorporated in the connecting tongue 21 of the end piece 4, 5.
  • the connecting pipes 28, 30 are herein disposed at the respective end of the surface extender 29 with their axial slot 31 directed towards said surface extender.
  • the pipes 28, 30 are fixed in the correct position by means of the guide pin 32, which engages in the wedge-shaped portion 33 of the surface extender 29.
  • the sealing of the ends of the groove 11 is realized by the connecting pipes also being connected to the groove 11 of the middle piece 3 and by the outermost portions of the side walls 13, 14 and the base wall 12 of the groove 11 wholly or partially enclosing the circumferential surface of the pipe.
  • the oil cooler is therefore formed by the two connecting pipes 28, 30, of which the one comprises an inlet pipe and the other an outlet pipe, by the surface extender 29 and by the groove 11 of the middle section 3.
  • the limit walls of the oil cooler are therefore constituted by the side walls and base wall of the groove, as well as the top wall formed by the wedge-shaped portion of the surface extender together with the undercut, conical surfaces 15, 16, and it is sealed at the ends of the groove 11 by the fact that the end portions of the groove 11 wholly or partially enclose the circumferential surface of the connecting pipes.
  • the oil cooler therefore operates in such a way that oil is conducted into the groove 11 through one of the connecting pipes 28, 30, flows through the groove 11 and is simultaneously cooled by heat exchange between the warm oil and the cooler liquid located in the vehicle cooler tank, whereafter the oil flows out of the oil cooler through the other connecting pipe.
  • All parts belonging to the oil cooler and vehicle cooler tank are made from an aluminum alloy to enable the parts to be joined together by hard-soldering in a vacuum furnace.
  • the hard-soldering is made possible by the fact that all of the oil cooler, as, incidentally, of the vehicle cooler also, is fixed together by virtue of the specific design of the oil cooler and vehicle cooler, the parts lying tightly against one another.
  • the invention therefore yields the major advantage that the surface extender is utilized as a limit wall to the oil cooler, thereby eliminating the top plate which would otherwise be required to seal the oil cooler against the longitudinally extending opening of the groove.
  • the surface extender like other parts belonging to the oil cooler, is self-fixing, whereupon the need for external fixtures in the subsequent soldering procedure is eliminated.

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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 (6)

  1. Wärmetauschervorrichtung, bestehend aus einem ersten Wärmetauscher und einem zweiten Wärmetauscher, wobei dieser zweite Wärmetauscher eine von der zu behandelnden Flüssigkeit durchströmte Kammer, einen Ein- und Auslaß (3) für diese Flüssigkeit sowie ein in der Kammer angeordnetes oberflächenvergrößerndes Element (29) aufweist, und wobei die Kammer eine von einem Wandteil eines Behälters des ersten Wärmetauschers gebildete externe Nut (11), die innerhalb des genannten Behälters liegt, sowie Dichtmittel zur Abdichtung dieser Nut aufweist, dadurch gekennzeichnet, daß das Dichtmittel einen Teil (33) des oberflächenvergrößernden Elements (29) umfaßt, der die in Längsrichtung verlaufende Öffnung der Nut (11) abdichtet.
  2. Wärmetauschervorrichtung gemäß Anspruch 1, wobei der die Abdichtung bewirkende Teil (33) des oberflächenvergrößernden Elements keilförmig ausgeführt ist, um sich an Hinterschneidungsflächen (15,16) anzulegen, die die Nut an dieser Öffnung aufweist.
  3. Wärmetauschervorrichtung gemäß Anspruch 2, wobei das oberflächenvergrößernde Element (29) in senkrechter Richtung federelastisch ist und im unbelasteten Zustand eine Höhe aufweist, die die Tiefe der Nut (11) geringfügig überschreitet, wodurch das oberflächenvergrößernde Element (29) nach seiner Einführung in die Nut eine Vorspannung dergestalt erhält, daß sein die Abdichtung bewirkender Teil (33) gegen die Hinterschneidungsflächen gedrückt wird.
  4. Wärmetauschervorrichtung gemäß einem der Ansprüche 1 - 3, wobei die Nut (11) endseitig offen ist, der Ein- und Auslaß aus einem Rohr (30) besteht, das an seinem einen Ende offen und an seinem anderen Ende geschlossen ist und einen axialen Schlitz (31) in seinem der Nzt (11) gegenüberliegenden Umfangsbereich aufweist, und die Rohre (30) das jeweilige Ende der Nut (11) verschließen, indem sie sich an die Wände (13,14) der Nut anlegen.
  5. Wärmetauschervorrichtung gemäß Anspruch 4, wobei das Rohr (30) einen Zapfen (32) aufweist, der in die Nut (11) eingeschoben wird und mit dem oberflächenvergrößernden Element (29) in Eingriff geht, wodurch das Rohr (30) relativ zu der Nut (11) positioniert wird.
  6. Wärmetauschervorrichtung gemäß Anspruch 5, wobei der Zapfen (32) keilförmig ausgebildet ist, so daß er mit dem die Abdichtung bewirkenden Teil (33) des oberflächenvergrößernden Elements (29) in Eingriff geht.
EP19950302337 1994-04-11 1995-04-07 Wärmetauscher Expired - Lifetime EP0676609B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9401213 1994-04-11
SE9401213A SE501629C2 (sv) 1994-04-11 1994-04-11 Värmeväxlare placerad i en ränna i en värmeväxlartank

Publications (2)

Publication Number Publication Date
EP0676609A1 EP0676609A1 (de) 1995-10-11
EP0676609B1 true EP0676609B1 (de) 1998-07-22

Family

ID=20393607

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19950302337 Expired - Lifetime EP0676609B1 (de) 1994-04-11 1995-04-07 Wärmetauscher

Country Status (4)

Country Link
EP (1) EP0676609B1 (de)
DE (1) DE69503550T2 (de)
ES (1) ES2122449T3 (de)
SE (1) SE501629C2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2742757B1 (fr) * 1995-12-22 1998-01-30 Roussel Uclaf Nouveaux derives de l'erythromycine, leur procede de preparation et leur application comme medicaments
WO2005031239A1 (de) * 2003-10-02 2005-04-07 Behr Gmbh & Co. Kg Ladeluftkühler für kraftfahrzeuge
FR2997487B1 (fr) * 2012-10-26 2018-07-27 Valeo Systemes Thermiques Boite collectrice pour echangeur de chaleur, notamment refroidisseur d'air de suralimentation de moteur de vehicule automobile

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3265126A (en) * 1963-11-14 1966-08-09 Borg Warner Heat exchanger
US4834171A (en) * 1987-03-19 1989-05-30 Modine Manufacturing Company Radiator and oil cooler
US4903760A (en) * 1989-05-24 1990-02-27 General Motors Corporation Integral oil cooler and radiator tank

Also Published As

Publication number Publication date
SE9401213D0 (sv) 1994-04-11
SE9401213L (sv) 1995-04-03
EP0676609A1 (de) 1995-10-11
SE501629C2 (sv) 1995-04-03
ES2122449T3 (es) 1998-12-16
DE69503550T2 (de) 1998-11-19
DE69503550D1 (de) 1998-08-27

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