EP0176382B1 - Echangeur de chaleur, en particulier radiateur d'un circuit de refroidissement de moteur de véhicule automobile - Google Patents

Echangeur de chaleur, en particulier radiateur d'un circuit de refroidissement de moteur de véhicule automobile Download PDF

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Publication number
EP0176382B1
EP0176382B1 EP85401580A EP85401580A EP0176382B1 EP 0176382 B1 EP0176382 B1 EP 0176382B1 EP 85401580 A EP85401580 A EP 85401580A EP 85401580 A EP85401580 A EP 85401580A EP 0176382 B1 EP0176382 B1 EP 0176382B1
Authority
EP
European Patent Office
Prior art keywords
tubes
heat exchanger
sets
sub
exchanger according
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
Application number
EP85401580A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0176382A2 (fr
EP0176382A3 (en
Inventor
Marco Valier
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 SE
Original Assignee
Valeo SE
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 SE filed Critical Valeo SE
Publication of EP0176382A2 publication Critical patent/EP0176382A2/fr
Publication of EP0176382A3 publication Critical patent/EP0176382A3/fr
Application granted granted Critical
Publication of EP0176382B1 publication Critical patent/EP0176382B1/fr
Expired 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
    • F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05333—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits

Definitions

  • the invention relates to a heat exchanger, in particular a radiator of a motor vehicle engine cooling circuit, which comprises a bundle of finned tubes and at least one water box mounted at one end of the bundle, the latter being formed of at least two sets, independent and juxtaposed, of finned tubes.
  • the radiator of a cooling circuit of a truck engine or the like has a larger size than that of a radiator of a passenger vehicle and, for this reason, it has already been proposed to form the bundle of tubes of such a radiator by at least two sets of finned tubes independent of one another which are juxtaposed and which are mounted in parallel between the water boxes of the exchanger.
  • each of these sets of finned tubes is simpler and easier to manufacture and handle than a single bundle corresponding to the juxtaposition of these tube assemblies.
  • the fins with which the tubes of these assemblies are provided have an area twice (or several times) smaller than that of the fins with which the tubes would be provided with a bundle made in one piece.
  • these fins are generally made of aluminum and have an extremely small thickness, of the order of 0.1 mm, the reduction in their dimensions greatly facilitates the manufacture and assembly of the radiator beam, and also improves its mechanical strength.
  • an exchanger whose bundle is formed from at least two independent sets of finned tubes, which are juxtaposed as close as possible, is subjected to significant vibrations in use, which can cause impacts of the fins of these sets. on each other by their facing edges, leading to crushing and deformation of these edges.
  • US Pat. No. 2,184,657 describes a heat exchanger comprising several sets of finned tubes, in which each set forms an independent radiator.
  • the two water boxes of each radiator are connected to each other by crosspieces and the crosspieces of the juxtaposed radiators are fixed to each other by bolts.
  • Such a heat exchanger also requires connecting conduits between the water boxes of the radiators and is therefore complex and expensive to produce.
  • the object of the invention is in particular to avoid the drawbacks of known exchangers, in a simple, inexpensive and particularly effective manner.
  • a heat exchanger in particular a radiator for a motor vehicle engine cooling circuit, comprising a bundle of finned tubes and at least one water box mounted at one end of the bundle, the latter being formed from at least two sets, independent and juxtaposed, of finned tubes, characterized by first means urging the sets of finned tubes towards each other, in a plane perpendicular to the tubes of said sets, these first means comprising two parallel sleepers extending along two small faces of the bundle parallel to the tubes and connecting members connecting the sleepers together; and second means provided in each set of tubes to be supported one on the other, in a plane perpendicular to the tubes by the first means, the second means of each set of tubes comprising a rigid plate having substantially the shape of a fin and slightly larger dimensions, which is interposed between two fins in said assembly, and which is crossed by the tubes of this assembly.
  • the connecting members comprise two tie rods which connect the crosspieces to each other in their middle zone, and these crosspieces are connected to each other at their ends, for example by the manifold-waterbox assemblies of the 'exchanger.
  • each set of finned tubes is facilitated by the fact that the plate provided in this set has substantially the same shape as the fins and of dimensions slightly greater than those of the fins.
  • the conventional means of assembling the bundles of tubes can therefore be used, without modification.
  • the aforementioned plates of said sets of tubes are juxtaposed in the same plane, perpendicular to the tubes, and are clamped one on the other and between the crosspieces by the aforementioned tie rods.
  • the plates advantageously having dimensions slightly larger than those of the fins in the areas where they must come into contact, the edges of the fins are thus kept at a small distance from each other.
  • the sets of finned tubes constituting the exchanger bundle can be maintained with respect to the vibrations to which the exchanger is subjected in use, without the edges of the fins of the juxtaposed sets of tubes being able to warp and crash against each other.
  • a rigid and relatively undeformable assembly is thus obtained by virtue of the prestressing exerted on the plates juxtaposed by the aforementioned crosspieces and tie rods.
  • the aforementioned plates are in a vibration-absorbing material, for example plastic and have a thickness several times greater than that of the fins, for example of the order of 10 mm when the fins are made of aluminum and have a thickness of about 0 , 1 mm.
  • these plates may include cavities or lightening grooves.
  • the heat exchanger shown in Figure 1 is in particular intended to be mounted in the cooling circuit of a motor vehicle engine such as a truck.
  • It comprises a bundle 10 of finned tubes, straight and parallel, at the ends of which are mounted two water boxes (12 and 14) respectively, one of which comprises the tube (16) for entering the liquid in the exchanger and the other of which comprises the outlet pipe (18), these two water boxes being conventionally mounted on the ends of the bundle (10), for example by means of collectors or tube plates which are passed through in a leaktight manner by the ends of the bundle tubes.
  • the bundle (10) of the exchanger is, due to its large size, formed by at least two sets (20 and 22) of finned tubes, which are juxtaposed vertically, the assembly (20) forming for example the upper half of the bundle (10) while the assembly (22) forms its lower half.
  • each set (20, 22) of fin tubes is itself made up of two sub-assemblies (24, 26 and 28, 30) of fin tubes, which are independent of each other and which are juxtaposed in each set (20 or 22) in a horizontal direction perpendicular to the direction of juxtaposition of the two sets (20 and 22) and corresponding to the thickness of the beam (10).
  • the two sub-assemblies (24 and 26) of finned tubes forming the assembly (20) are juxtaposed horizontally in the direction of the thickness of the beam, as well as the two sub-assemblies (28 and 30) forming the assembly (22) of finned tubes.
  • the two sub-assemblies (26 and 30) of finned tubes are juxtaposed vertically, and the sub-assemblies (24 and 28) are also juxtaposed vertically, in the direction of the juxtaposition of the assemblies (20 and 22 ).
  • Each sub-assembly (24, 26, 28, 30) of finned tubes is formed of rectilinear and parallel tubes arranged in rows and columns, which are provided with fins (34) which are plane and parallel to each other, perpendicular to the tubes (32 ).
  • Each sub-assembly (24, 26, 28, 30) of finned tubes comprises, substantially in its central region, a rigid plate (36) having substantially the same planar and rectangular shape as the fins (34) of each sub-assembly , but slightly larger in length and width, this plate (36) being interposed between two fins (34) and having a thickness several times greater than that of the fins.
  • the plate (30) is traversed by the tubes (32) of the corresponding sub-assembly and is fixed to at least some of these tubes, in the same way as the fins are fixed to the tubes, for example by crimping by means of swelling or radial expansion of the tubes after their introduction into the holes of the fins and of the plate (36).
  • the four plates (36) are also juxtaposed and come into abutment two by two the on top of each other.
  • the crosspieces (38) are also connected to each other, in their central region, by two parallel tie rods (40) each extending across a large face of the bundle (10), on either side of the latter. .
  • the threaded ends of the tie rods (40) pass through holes in this lugs (42) in 1 fixed externally on the edges of the crosspieces (38), and receive tightening nuts (44).
  • the sub-assemblies (24, 26, 28, 30) of finned tubes are identical to each other. This identity is not compulsory and the invention also applies to the case where the finned tube sub-assemblies or the sets of finned tubes forming the exchanger bundle are not identical. Similarly, the number of assemblies or sub-assemblies of this finned tube forming the bundle (10) is not limited to two.

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)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
EP85401580A 1984-08-22 1985-08-01 Echangeur de chaleur, en particulier radiateur d'un circuit de refroidissement de moteur de véhicule automobile Expired EP0176382B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8413081A FR2571485B1 (fr) 1984-08-22 1984-08-22 Echangeur de chaleur, en particulier radiateur d'un circuit de refroidissement de moteur de vehicule automobile
FR8413081 1984-08-22

Publications (3)

Publication Number Publication Date
EP0176382A2 EP0176382A2 (fr) 1986-04-02
EP0176382A3 EP0176382A3 (en) 1986-04-16
EP0176382B1 true EP0176382B1 (fr) 1988-05-18

Family

ID=9307168

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85401580A Expired EP0176382B1 (fr) 1984-08-22 1985-08-01 Echangeur de chaleur, en particulier radiateur d'un circuit de refroidissement de moteur de véhicule automobile

Country Status (8)

Country Link
US (1) US4660626A (es)
EP (1) EP0176382B1 (es)
JP (1) JPS6162786A (es)
BR (1) BR8503908A (es)
DE (1) DE3562825D1 (es)
ES (1) ES295957Y (es)
FR (1) FR2571485B1 (es)
MX (1) MX158707A (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4433165C1 (de) * 1994-09-16 1995-12-21 Mtu Friedrichshafen Gmbh Wärmetauscher in Plattenbauweise
DE10229973A1 (de) * 2002-07-03 2004-01-29 Behr Gmbh & Co. Wärmeübertrager
CN105134362A (zh) * 2015-09-07 2015-12-09 南宁八菱科技股份有限公司 内置拉杆换热器塑料水室/气室

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1407867A (en) * 1921-01-06 1922-02-28 Ernest U Keller Socket and bowl for fishing tools
US1834001A (en) * 1926-11-19 1931-12-01 Modine Mfg Co Radiator
US1899629A (en) * 1931-10-26 1933-02-28 American Blower Corp Steel pipe and fin heater
US2184657A (en) * 1936-04-10 1939-12-26 Fred M Young Heat exchanger
US2298996A (en) * 1941-04-22 1942-10-13 Clifford Mfg Co Heat exchange apparatus
US3191670A (en) * 1961-07-24 1965-06-29 Westinghouse Electric Corp Finned heat exchangers
US3472316A (en) * 1967-12-07 1969-10-14 Couch Ind Inc Layered heat exchanger with interlocking header plates
DE2144465B2 (de) * 1971-09-06 1975-04-17 Geax-Luftkuehlergesellschaft Happel Gmbh & Co Kg, 4630 Bochum Durch einen Luftstrom gekühlter Oberflächenkondensator
DE3045087C2 (de) * 1980-11-29 1984-04-05 Kühlerfabrik Längerer & Reich GmbH & Co KG, 7024 Filderstadt Wärmeaustauscher
US4373578A (en) * 1981-04-23 1983-02-15 Modine Manufacturing Company Radiator with heat exchanger
DE3119628C2 (de) * 1981-05-16 1985-07-25 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co. KG, 7000 Stuttgart Flachrohr-Wärmetauscher
FR2512941B1 (fr) * 1981-09-14 1987-04-24 Valeo Echangeur de chaleur a faisceau de tubes paralleles et procede d'assemblage de ses elements constitutifs
FR2549945B1 (fr) * 1983-07-27 1988-09-23 Valeo Echangeur de chaleur, en particulier radiateur d'un circuit de refroidissement de moteur de vehicule automobile
US4570704A (en) * 1984-03-26 1986-02-18 L & M Radiator, Inc. Support for heat exchanger tubes

Also Published As

Publication number Publication date
MX158707A (es) 1989-02-27
FR2571485B1 (fr) 1987-02-13
ES295957U (es) 1987-07-16
DE3562825D1 (en) 1988-06-23
ES295957Y (es) 1988-01-16
BR8503908A (pt) 1986-05-27
US4660626A (en) 1987-04-28
EP0176382A2 (fr) 1986-04-02
JPS6162786A (ja) 1986-03-31
EP0176382A3 (en) 1986-04-16
FR2571485A1 (fr) 1986-04-11

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