EP0597767A1 - Wärmetauscher mit, mit Stützen verbundenen, Wasserkästen insbesondere für Fahrzeuge - Google Patents

Wärmetauscher mit, mit Stützen verbundenen, Wasserkästen insbesondere für Fahrzeuge Download PDF

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Publication number
EP0597767A1
EP0597767A1 EP93402734A EP93402734A EP0597767A1 EP 0597767 A1 EP0597767 A1 EP 0597767A1 EP 93402734 A EP93402734 A EP 93402734A EP 93402734 A EP93402734 A EP 93402734A EP 0597767 A1 EP0597767 A1 EP 0597767A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
cheeks
exchanger according
tubes
water box
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
EP93402734A
Other languages
English (en)
French (fr)
Other versions
EP0597767B1 (de
Inventor
Bernard Levy
Dany Boquel
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 EP0597767A1 publication Critical patent/EP0597767A1/de
Application granted granted Critical
Publication of EP0597767B1 publication Critical patent/EP0597767B1/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
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core

Definitions

  • the invention relates to a heat exchanger comprising water boxes connected by uprights, intended in particular for motor vehicles and in particular for heavy goods vehicles.
  • Heat exchangers of this type comprise a bundle of tubes mounted between two water boxes as well as two uprights each connecting the two water boxes, in which each upright is provided at each end with a pair of opposite cheeks suitable for enclosing two opposite support walls of one of the water boxes, and in which each cheek is provided with at least one opening suitable for being disposed opposite a bore in the support wall for setting place of a fixing member.
  • the two uprights In heat exchangers of this type, the two uprights generally have a U-shaped cross section and they extend in directions parallel to those of the tubes of the bundle so as to frame the latter. It is thus possible to produce heat exchangers of large dimensions and having a high mechanical resistance, as is the case of heat exchangers intended for motor vehicles and more particularly for heavy goods vehicles. It is known in fact that such exchangers must be subjected in operation to high mechanical stresses due in particular to the vibrations of the engine and to the differences in expansion undergone by the tubes of the bundle.
  • the members for fixing the uprights on the water boxes can in particular be pins, as taught by European Patent No 115 795, screws engaging in tapped holes of water boxes metal as taught by European Patent No 112 251, or self-tapping screws in the case where the water boxes are made of plastic molded, as taught by French Patent Application No. 91 02981 in the name of the Applicant.
  • the object of the invention is in particular to remedy the aforementioned drawbacks.
  • each support wall of a water box comprises a snap-fit projection suitable for being inserted into a recess of the corresponding cheek of a upright, so as to ensure a prior positioning of the upright before fitting the fixing members.
  • the latching projections and the corresponding recesses are placed in judiciously chosen places so that, in their positions of mutual cooperation, the cheek openings are opposite the corresponding bores of the support walls of the water boxes.
  • the cheeks of the same pair constitute a kind of U-shaped fork, it is enough to spread them slightly to facilitate the positioning of the uprights until their final location, in which the cheeks can be again close together, and in which the openings of the cheeks coincide with the bores of the bearing walls.
  • the uprights are then correctly positioned and it then suffices to set up the fixing members which can be, for example, self-tapping screws.
  • each of the two water boxes comprises two pairs of opposite snap projections, provided respectively on two end parts of the water box.
  • each latching projection forms a ramp, so that two opposite latching projections allow the progressive separation of the two opposite cheeks then their bringing together when the two projections have entered the recesses of the two cheeks.
  • the invention applies very particularly to a heat exchanger in which each water box has a peripheral edge specific to the fixing of a collecting plate, also called “plate with holes”, crossed by sealing by the tubes of the bundle.
  • each latching projection is formed on a boss formed in projection on the support wall and located overhanging relative to the peripheral edge.
  • each latching projection is formed directly on the support wall of the water box, which is set back from the aforementioned peripheral border.
  • each projection has substantially the shape of a T, a first branch of which extends in a direction parallel to that of the bundle tubes and a second branch of which extends in a direction perpendicular to that of the bundle tubes.
  • This second branch advantageously comprises a ramp which rises progressively from the support wall in the direction of the first branch.
  • the recesses of the cheeks which enclose one of the water boxes have, at least in a direction parallel to that of the tubes, a dimension greater than that of the latching projections so as to allow a positioning with travel of the uprights on this water box.
  • This travel allows to take into account the differences in expansion undergone by the tubes of the bundle.
  • the corresponding recess advantageously has a generally trapezoidal shape with a large base extending parallel to the first branch of the T and having a dimension greater than that. this.
  • the recesses of the cheeks which enclose the other water box have dimensions adapted to those of the latching projections to allow positioning without deflection of the uprights on this water box.
  • the heat exchanger partially shown in FIG. 1 comprises a bundle 10 formed of a multiplicity of tubes 12, of parallel axes, passing through a multiplicity of fins 14.
  • the bundle 10 is mounted between two water boxes 16 and 18 located respectively in the upper part and in the lower part of the heat exchanger.
  • the water box 16 comprises a casing 20 molded in plastic material which has a peripheral edge 22 delimiting an open rectangular face and serving to hold a collecting plate 24, also called “plate with holes”, crossed by sealing by the upper ends tubes 12.
  • the water box 18 comprises a molded housing 26 provided with a peripheral edge 28 on which a collecting plate 30 is fitted with sealing through the lower ends of the tubes 12.
  • the water box 16 comprises a first end block 32 situated on the left side of FIG. 1 and a symmetrical end block not visible in FIG. 1.
  • the water box 18 comprises an end block 34 located on the left side of FIG. 1 and a symmetrical end block located on the right side and not visible in FIG. 1.
  • the end blocks 32 and 34 are used in particular for fixing an upright 36 which makes it possible to connect the two water boxes.
  • the heat exchanger also includes another upright, not visible in FIG. 1 and used to connect the two other respective end blocks of the water boxes 16 and 18.
  • the upright 36 like the other upright, extends in a direction parallel to that of the tubes of the bundle and it comprises a core 38 on which two wings 40 depend so as to constitute a U-shaped profile coming to frame the bundle 10.
  • the upright 36 is provided with a first pair of cheeks 42 for its attachment to the block 32 of the water box 16 and a second pair of cheeks 44 for its attachment to the block 34 of the water box 18.
  • the two cheeks 42 are parallel to each other and intended to grip the block 32 and the cheeks 44 are parallel to each other to grip the block 34.
  • the cheeks 42 and the cheeks 44 can be formed in one piece with the amount 38 or else be attached to the latter.
  • the two cheeks 42 each have two openings 48 of oblong shape whose major axis extends in a direction parallel to that of the tubes 10 and which are intended to come respectively opposite two bores 50 formed in one of two opposite bearing walls 52 that comprises the block 32.
  • Each of the cheeks 42 is fixed to the block 32 by means of two self-tapping screws 54 as shown in FIG. 2.
  • Each of the screws 54 comprises a hexagonal head 56 with a flange 58, a ring 60 and a self-threading rod drill 62.
  • the ring 60 has an external diameter less than the smallest dimension of the opening 48 to allow a limited clearance of the cheeks 42 relative to the end block 32.
  • the two cheeks 44 are each provided with two circular openings 64 suitable for being disposed respectively opposite two holes 66 formed in one of two support walls 68 that the end block 34 of the box includes water 18.
  • the attachment of each of the wings 44 is carried out, as shown in FIG. 3, by two self-tapping screws 54 identical to those of FIG. 2.
  • the circular openings 64 have an internal diameter smaller than the diameter of the ring 60 of the screw 54, so that there is no movement of the cheeks 44 relative to the block 34.
  • each of the two opposite bearing walls 52 of the water box 16 comprises a latching projection 70 suitable for being inserted into a recess 72 of the corresponding cheek 42 so as to ensure a prior positioning of the cheeks 42 and therefore of the upright with respect to the water box 16, before fitting the self-tapping screws 54.
  • the snap-on projection 70 is centered in the recess 72 and the two openings 48 are located in correspondence with the two bores 50.
  • Each of the two bearing walls 68 of the water box 18 comprises a snap-fit projection 74 suitable for being inserted into a recess 76 in the corresponding cheek 44 so as to ensure prior positioning of the cheeks 44, and therefore of the upright 36 , before putting in place the self-tapping screws 54.
  • the openings 64 are in correspondence with the bores 66.
  • the latching projection 70 has a first branch 70-1 and a second branch 70-2 extending respectively in a direction parallel and in a direction transverse to that of the tubes 12 of the bundle .
  • the latching projection 74 has a first branch 74-1 and a second branch 74-2 which extend respectively in a direction parallel and in a direction transverse to that of the tubes 12.
  • the recess 72 has a generally trapezoidal shape with a large base 78 which extends in the direction of the branch 70-1 and which is of a length greater than the latter to allow a limited clearance of the cheek 42 relative to the block 32 in a direction parallel to that of the tubes.
  • the recess 76 of each of the cheeks 44 has a generally rectangular shape having a side 80 which extends parallel to the branch 74-1 and which is substantially the same length as the latter, to avoid any possibility of movement.
  • the latching projection 70 is here formed in relief on a boss 82 generally planar and which extends in overhang relative to at the peripheral edge 22 of the water box 16.
  • the two holes 50 open into the boss 82 which serves to support one of the cheeks 42.
  • the second branch 70-2 of the latching projection 70 forms a ramp which rises progressively from the bearing wall as one s approach to the first branch 70-1.
  • the ramps thus offered by two opposite projections 70 facilitate the separation of the two cheeks 42 until penetration of the two projections 70 in the two corresponding recesses 72.
  • the projection 70 also in the shape of a T is formed directly on the bearing wall 52 of the water box 16, and it is thus set back with respect to in the plane of the peripheral edge 22 of the water box.
  • each of the cheeks 42 is connected to the corresponding wing 40 of the upright 36 by a recess 84, as shown on the right part of FIG. 6. It follows that the spacing of the two cheeks 42 must be greater than that of the two wings 40 of the upright 36 and therefore greater than the width of the upright.
  • the cheek 42 is coplanar with the wing 40 of the upright 36, as shown on the left-hand side of FIG. 6. It then suffices to simply provide a groove 86 suitable for bypassing the border peripheral 22.
  • the spacing between the two cheeks 42 is therefore identical to that of the wings 40 of the upright 36, and therefore to the width of the latter.
  • the invention makes it possible to position the two uprights connecting the two water boxes of a heat exchanger beforehand, thereby ensuring provisional maintenance of the two uprights.
  • the invention finds a very particular application to heat exchangers of large dimensions such as the exchangers of heavy goods vehicles whose amounts can reach a length greater than 1.20 m.

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)
EP19930402734 1992-11-09 1993-11-08 Wärmetauscher mit, mit Stützen verbundenen, Wasserkästen insbesondere für Fahrzeuge Expired - Lifetime EP0597767B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9213489 1992-11-09
FR9213489A FR2697907B1 (fr) 1992-11-09 1992-11-09 Echangeur de chaleur à boîtes à eau reliées par des montants, notamment pour véhicule automobile.

Publications (2)

Publication Number Publication Date
EP0597767A1 true EP0597767A1 (de) 1994-05-18
EP0597767B1 EP0597767B1 (de) 2001-01-24

Family

ID=9435380

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930402734 Expired - Lifetime EP0597767B1 (de) 1992-11-09 1993-11-08 Wärmetauscher mit, mit Stützen verbundenen, Wasserkästen insbesondere für Fahrzeuge

Country Status (3)

Country Link
EP (1) EP0597767B1 (de)
DE (1) DE69329892T2 (de)
FR (1) FR2697907B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1010962A3 (de) * 1998-12-16 2000-07-12 Modine Manufacturing Company Wasser/Luft-Kühler
US6564857B1 (en) * 1999-10-21 2003-05-20 Modine Manufacturing Company Compact cooling system

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0112251A1 (de) * 1982-12-16 1984-06-27 Societe Anonyme Des Usines Chausson Langrohrwärmeaustauscher für schwere Lastkraftwagen
EP0115795A1 (de) * 1983-02-05 1984-08-15 Behr GmbH & Co. Wasser/Luft-Kühler für wassergekühlte Verbrennungskraftmaschinen, insbesondere von Nutzfahrzeugen
EP0170952A1 (de) * 1984-08-04 1986-02-12 Behr GmbH & Co. Wasser/Luft-Kühler für wassergekühlte Verbrennungskraftmaschinen
JPS6371421A (ja) * 1986-09-12 1988-03-31 Nissan Motor Co Ltd ラジエ−タの取付構造
JPS63302650A (ja) * 1987-06-02 1988-12-09 Fujitsu Ltd ハンドセット筐体構造
EP0346602A1 (de) * 1988-06-17 1989-12-20 Behr GmbH & Co. Wasser/Luft-Kühler für wassergekühlte Verbrennungskraftmaschinen, insbesondere von Nutzfahrzeugen
EP0502836A2 (de) * 1991-03-06 1992-09-09 Valeo Engine Cooling Aktiebolag Radiator für Brennkraftmaschine mit innerer Verbrennung
EP0504034A1 (de) * 1991-03-12 1992-09-16 Valeo Thermique Moteur Wärmetauscher mit verbundenen Wasserkästen für Fahrzeuge
EP0504635A1 (de) * 1991-03-21 1992-09-23 Behr GmbH & Co. Wasser-/Luft-Kühler für wassergekühlte Verbrennungskraftmaschinen

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0112251A1 (de) * 1982-12-16 1984-06-27 Societe Anonyme Des Usines Chausson Langrohrwärmeaustauscher für schwere Lastkraftwagen
EP0115795A1 (de) * 1983-02-05 1984-08-15 Behr GmbH & Co. Wasser/Luft-Kühler für wassergekühlte Verbrennungskraftmaschinen, insbesondere von Nutzfahrzeugen
EP0170952A1 (de) * 1984-08-04 1986-02-12 Behr GmbH & Co. Wasser/Luft-Kühler für wassergekühlte Verbrennungskraftmaschinen
JPS6371421A (ja) * 1986-09-12 1988-03-31 Nissan Motor Co Ltd ラジエ−タの取付構造
JPS63302650A (ja) * 1987-06-02 1988-12-09 Fujitsu Ltd ハンドセット筐体構造
EP0346602A1 (de) * 1988-06-17 1989-12-20 Behr GmbH & Co. Wasser/Luft-Kühler für wassergekühlte Verbrennungskraftmaschinen, insbesondere von Nutzfahrzeugen
EP0502836A2 (de) * 1991-03-06 1992-09-09 Valeo Engine Cooling Aktiebolag Radiator für Brennkraftmaschine mit innerer Verbrennung
EP0504034A1 (de) * 1991-03-12 1992-09-16 Valeo Thermique Moteur Wärmetauscher mit verbundenen Wasserkästen für Fahrzeuge
EP0504635A1 (de) * 1991-03-21 1992-09-23 Behr GmbH & Co. Wasser-/Luft-Kühler für wassergekühlte Verbrennungskraftmaschinen

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 12, no. 294 (M - 730) 11 August 1988 (1988-08-11) *
PATENT ABSTRACTS OF JAPAN vol. 13, no. 139 (E - 738) 6 April 1989 (1989-04-06) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1010962A3 (de) * 1998-12-16 2000-07-12 Modine Manufacturing Company Wasser/Luft-Kühler
US6564857B1 (en) * 1999-10-21 2003-05-20 Modine Manufacturing Company Compact cooling system
US6886624B2 (en) 1999-10-21 2005-05-03 Modine Manufacturing Company Compact cooling system

Also Published As

Publication number Publication date
DE69329892D1 (de) 2001-03-01
FR2697907B1 (fr) 1995-01-20
EP0597767B1 (de) 2001-01-24
DE69329892T2 (de) 2001-05-03
FR2697907A1 (fr) 1994-05-13

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