EP1015838A1 - Motor vehicle heat exchanger and method for making same - Google Patents
Motor vehicle heat exchanger and method for making sameInfo
- Publication number
- EP1015838A1 EP1015838A1 EP99957195A EP99957195A EP1015838A1 EP 1015838 A1 EP1015838 A1 EP 1015838A1 EP 99957195 A EP99957195 A EP 99957195A EP 99957195 A EP99957195 A EP 99957195A EP 1015838 A1 EP1015838 A1 EP 1015838A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cover
- covers
- fluid
- heat exchanger
- 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.)
- Granted
Links
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
- F28F9/0202—Header boxes having their inner space divided by partitions
- F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
- F28F9/0209—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions
-
- 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
- F28D1/05375—Assemblies of conduits connected to common headers, e.g. core type radiators with particular pattern of flow, e.g. change of flow direction
Definitions
- the invention relates to the technology of heat exchangers for motor vehicles.
- the invention applies to the different types of heat exchangers that can be encountered in a vehicle, whether it is the cabin heating radiator, the engine cooling radiator, the circuit condenser. air conditioning, or 1 evaporator of an air conditioning loop.
- These exchangers consist of a bundle of finned tubes performing the heat exchange with the external environment.
- the tubes of the bundle are connected on either side by end blocks defining the direction of circulation of the fluid in the various tubes and making it possible to introduce the fluid into the exchanger and to extract it therefrom.
- Each of the end blocks comprises a metal collector plate or "hole plate” into which the tubes of the bundle open, secured to this plate, for example by brazing, at the place of their outlet.
- This plate generally designated “manifold”, is capped by a cover or “fluid box” so that the manifold and box define a common volume into which the corresponding ends of the tubes open, and through which the inlet is operated if necessary. and the fluid outlet.
- the fluid box is provided with connections to intake and fluid collection lines. Its internal volume is further subdivided into a plurality of separate sub-volumes making it possible to join together certain groups of tubes of the bundle so as to define a predetermined configuration of circulation of fluid in the exchanger, with several back and forth of fluid in the bundle of tubes.
- An end block therefore comprises at least one manifold and a fluid box which must be assembled together.
- brazed assembly where all of the elements of the heat exchanger are passed through a brazing furnace allowing a filler metal to achieve both the joining of the various elements (manifolds, fluid boxes, partition walls, bundle of tubes, etc.) and their sealing.
- Another assembly technique used is mechanical assembly in which all of the elements of the heat exchanger are mechanically joined together with a sealing gasket ensuring the seal between the manifold and the tubes, d on the one hand, and between the manifold and the fluid box, on the other hand.
- the invention relates to a particular technique for manufacturing a heat exchanger, applicable in the case of the two abovementioned assembly techniques, in particular that of brazed assembly. It aims to rationalize production by simplifying assembly, standardizing elements and reducing the number of different parts to be assembled to make a given exchanger.
- the heat exchanger is of the known type comprising a bundle of parallel tubes joined at each of their respective ends by a plate-shaped collector, each collector being capped by a fluid box sealingly closing the collector and defining with it ci a plurality of interior volumes imposing predetermined directions of circulation of the fluid in the tubes of the bundle.
- the fluid box is formed of a plurality of juxtaposed single-piece individual covers, assembled together with the manifold and defining together said interior volumes of the fluid box.
- said covers each define one of said interior volumes of the fluid box.
- At least one of said covers alone defines one of said interior volumes of the fluid box, while at least one cover is provided side which partially covers the central cover to define with it another interior volume.
- the side cover it is advantageous for the side cover to have an open face side wall which covers the central cover over a chosen length.
- said covers comprise: a fluid intake cover and a similar fluid collection cover; and / or at least one fluid direction reversal cover; and / or a plurality of similar covers for reversing the direction of the fluid.
- the collectors are advantageously provided on the side of the covers with a peripheral rim forming an external contour complementary to that, inside, defined by the covers juxtaposed prior to the assembly of these on the collector.
- At least a first cover called the outside cover, completely covers at least one second cover, called the inside cover, the first cover and the second cover defining at least two interior volumes of the box to fluid.
- the outer cover defines two housings on either side of the inner cover.
- the outer cover and the inner cover have rims of different height, the height of the rims of the inner cover being less than the height of the rims of the outer cover so as to create a passage between said housings.
- the inner cover and the outer cover have longitudinal edges disposed one against the other on the manifold.
- the inner cover and / or the outer cover have one or more fluid inlet or outlet openings.
- the inner cover is supplied with fluid, which fluid makes two separate passes in the bundle before being expelled by one or more orifices for expelling the outer cover.
- the invention also relates to a method for manufacturing a heat exchanger of the type described above, method comprising the following steps: a) manufacturing, preferably by stamping, of a plurality of individual one-piece covers jointly defining said interior volumes fluid boxes, b) manufacture and assembly of a bundle of parallel tubes, c) fitting of the collectors at the ends of the bundle tubes, d) fitting, on each of the manifolds, corresponding individual covers, e) mechanical connection of the assembly.
- the covers are preferably produced by stamping a metal sheet.
- step e) the assembly is preferably carried out by joint brazing of the covers to the collectors and of the collectors to the tubes.
- FIG. 1 is a general sectional view of a motor vehicle heat exchanger according to a first embodiment of the invention
- FIG. 2 is a partial sectional view of a motor vehicle heat exchanger according to a second embodiment of the invention.
- Figure 3 is a partial sectional view similar to Figure 2 in an alternative embodiment
- Figure 4 is a partial perspective view corresponding to Figure 3;
- FIG. 5 is a longitudinal sectional view of a heat exchanger according to a third embodiment of the invention.
- FIG. 6 is a partial sectional view along line VI-VI of Figure 5.
- FIG. 1 represents a heat exchanger in which the teachings of the invention are implemented. It comprises a bundle of parallel tubes 10 (here flat tubes) separated by fins 11 of wavy shape. It is provided on either side of the tube bundle of the end blocks joining together certain groups of tubes and defining a predetermined fluid circuit configuration in the heat exchanger, shown diagrammatically by the various arrows in FIG. 1.
- Each end block comprises, in itself known manner, a metal plate 12, 14 generally called a “collector” joining the ends of the tubes of the bundle, plate with which is associated a cover-shaped element generally designated “fluid box” or “manifold box” tightly connected to the manifold by its peripheral rim.
- the assembly constituted by the collector and the corresponding box defines volumes into which the tubes of the bundle open.
- the fluid box of each end block consists of a plurality of juxtaposed individual covers each defining one of the various internal volumes of the fluid box.
- the fluid box associated with the manifold 12 comprises a first cover 16 connected to a fluid intake pipe 18, a second cover 20 connected to a fluid collection pipe 22 and, between the two, a cover 24 of reversing the direction of circulation of the fluid.
- the fluid box associated with the manifold 14, for its part, consists of two covers 26, 28 for reversing the direction of circulation of the fluid.
- the dimensions of the covers are chosen so that the covers 16 and 20 are similar, as are those of the covers 24, 26 and 28: the fluid boxes of the heat exchanger can thus be produced from only two types of hoods, namely a fluid intake / collection hood such as 16 or 20, and a fluid flow direction reversing hood such as 24, 26 or 28.
- the material of the collectors and covers is made of metal allowing brazing, for example of an aluminum alloy treated on the surface with a coating of filler metal.
- a respective peripheral rim 32, 34 is provided on each of the manifolds 12, 34 dimensioned so as to correspond to the outline (envelope) of the various juxtaposed hoods mounted on this manifold; the overlapping of the respective edges of the collectors and of the covers associated with the peripheral edges of the covers perpendicular to the manifold allows satisfactory brazing because of the larger surface vis-à-vis the brazed elements.
- the covers are preferably one-piece parts, for example produced by stamping a sheet. They each have, on the side of their free edge, a face oriented perpendicular to the plane of the collector, as in 36 or 38, so as to increase the surface vis-à-vis between two adjoining cowls or between an end cowl and the peripheral rim 32 or 34 of the associated collector.
- the rest of the cover can take any appropriate form, dictated by the technical constraints of installation (for example a roof shape for the covers 16 and 20 connected to the intake and fluid collection pipes 18 and 22) or by considerations size or mechanics of the fluids (for example a flat shape for the covers 24, 26 and 28).
- the exchanger comprises a manifold 12 similar to that of FIG. 1.
- the fluid box associated with the manifold 12 comprises a first cover 40 provided with a fluid intake opening 42, a second cover 44 provided with a fluid collection pipe 46 and, between the two, a cover 48 for reversing the direction of circulation of the fluid.
- the covers 40 and 44 are similar.
- the cover 48 or central cover alone defines an interior volume, while the covers 40 and 44, or side covers, each partially cover the central cover 48 to define with it two other volumes.
- the side covers 40 and 44 have respective side walls 50 and 52, each of which defines an open face facing the central cover 48.
- the walls 50 and 52 cover the central cover over respective lengths L1 and L2 which may be identical or different.
- the same side cover can be used to define different interior volumes as a function of the length of the covering L1 or L2.
- the wall of the cover 48 is smooth so that the side walls 50 and 52 of the covers 42 and 44 project outwards.
- the side wall of the central cover 48 has two shoulders or recesses 54 and 56 which allow to accommodate the ends of the side walls 50 and 52 of the covers 40 and 44 which are thus at the same level than the wall of the central cover.
- the fluid box is formed by a first cover 140, called the outside cover, which completely covers a second cover 150, called the inside cover.
- the first cover 140 and the second cover 150 are assembled to the manifold 12.
- the interior cover 150 defines a first interior volume of the fluid box, while the exterior cover 140 defines two housings 143 and 144 on either side of the interior cover (FIG. 5). These two housings define two interior volumes which here form a single interior volume since the two housings 143 and 144 communicate with each other by a passage 145 (FIGS. 5 and 6). In a variant not shown, the housings 143 and 144 could be completely separated, therefore without communication, provided that the inner cover forms a watertight partition between the two housings. As can be seen in Figures 5 and 6, the outer cover 140 has transverse edges 141 and longitudinal 142 which have a greater height than the transverse edges 151 and longitudinal 152 of the inner cover. This non-limiting example of embodiment allows passage 145 between the housings 143 and 144.
- an orifice 148 formed in both the inner cover 150 and the outer cover 140 allows the introduction or expulsion of a fluid directly into the inner cover 150.
- One or more other orifices 122 can be arranged at the through the outer cover 140 (FIG. 5).
- the longitudinal edges 152 of the inner cover 150 are attached respectively to the longitudinal edges 142 of the outer cover 140.
- the edges 32 of the manifold 12 correspond to the longitudinal edges 141 and 142 of the outer cover 140.
- the fluid box assembled with the manifold 14 (FIG. 5) consists of two covers 250 and 350 for reversing the direction of circulation of the fluid. Associated with an inner cover 150 and an outer cover 140, these two fluid direction reversal covers make it possible to make two separate passes of the fluid inside the bundle.
- the fluid enters the interior cover 150 and is divided into two parts.
- a first part of the fluid reaches the cover 250 to then go towards the housing 143, while a second part gains the cover 350 to then go towards the housing 144.
- each of the parts of the fluid carries out a journey in two separate passes, forming back and forth.
- the covers 150, 250 and 350 are similar, In an alternative embodiment (not shown), it could be envisaged to use a single cover in place of the two covers 250 and 350.
- the outer cover 140 covers the entire manifold 12, but it is also possible to have, on the manifold 12, two or more inner covers 150 covered by two or more outer covers 140.
- the invention is not limited to the embodiments described above by way of examples and is susceptible of numerous variants.
- the invention can also be applied to heat exchangers assembled mechanically, without soldering.
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9807923 | 1998-06-23 | ||
FR9807923A FR2780152B1 (en) | 1998-06-23 | 1998-06-23 | HEAT EXCHANGER FOR MOTOR VEHICLE, AND MANUFACTURING METHOD THEREOF |
PCT/FR1999/001497 WO1999067592A1 (en) | 1998-06-23 | 1999-06-22 | Motor vehicle heat exchanger and method for making same |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1015838A1 true EP1015838A1 (en) | 2000-07-05 |
EP1015838B1 EP1015838B1 (en) | 2003-08-20 |
Family
ID=9527740
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99957195A Expired - Lifetime EP1015838B1 (en) | 1998-06-23 | 1999-06-22 | Motor vehicle heat exchanger and method for making same |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1015838B1 (en) |
DE (1) | DE69910533T2 (en) |
FR (1) | FR2780152B1 (en) |
WO (1) | WO1999067592A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1884734A1 (en) * | 2006-07-25 | 2008-02-06 | Delphi Technologies, Inc. | Heat exchanger assembly with partitioned manifolds |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10147521A1 (en) * | 2001-09-26 | 2003-04-10 | Behr Gmbh & Co | Heat exchangers, in particular gas coolers CO2 - air conditioners |
DE102004036022A1 (en) * | 2004-07-23 | 2006-02-16 | Behr Industry Gmbh & Co. Kg | Collection box for a multi-row heat exchanger |
FR2873799A1 (en) * | 2004-08-02 | 2006-02-03 | Renault Sas | Heat exchanger for overfed internal combustion engine, has intermediate distribution case with inlet opening communicating with outlets that are respectively connected to inlets of tubes in corresponding sections |
FR2873798B1 (en) * | 2004-08-02 | 2006-09-29 | Renault Sas | THERMAL HEAT EXCHANGER WITH TUBULAR BEAM, IN PARTICULAR FOR A SUPERIOR INTERNAL COMBUSTION ENGINE |
DE102008055624A1 (en) * | 2007-12-10 | 2009-06-18 | Behr Gmbh & Co. Kg | Heat transfer medium, in particular radiator for motor vehicles |
WO2012150768A1 (en) | 2011-05-04 | 2012-11-08 | Halla Climate Control Corp. | Cold-storage heat exchanger |
FR2982937B1 (en) * | 2011-11-22 | 2018-04-27 | Valeo Systemes Thermiques | COLLECTOR BOX, IN PARTICULAR FOR A BATTERY COOLER, AND HEAT EXCHANGER COMPRISING AT LEAST ONE SUCH BOX. |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB556767A (en) * | 1942-04-18 | 1943-10-20 | Morris Motors Ltd | Improvements relating to heat interchange apparatus |
US3173482A (en) * | 1962-11-21 | 1965-03-16 | American Air Filter Co | Quadrant baffle for heat exchange header |
US3782454A (en) * | 1972-02-24 | 1974-01-01 | Modine Mfg Co | Heat exchanger |
FR2478807A1 (en) * | 1980-03-21 | 1981-09-25 | Deville Ste Indle | Heat exchanger end connection box - has coaxial connections to exterior and also to internal parallel tube groups |
FR2676273B1 (en) * | 1991-05-10 | 1998-06-05 | Valeo Thermique Moteur Sa | FLUID BOX OF GENERAL TUBULAR FORM FOR HEAT EXCHANGER. |
DE9400687U1 (en) * | 1994-01-17 | 1995-05-18 | Thermal Waerme Kaelte Klima | Evaporator for air conditioning systems in motor vehicles with multi-chamber flat tubes |
FR2753783B1 (en) * | 1996-09-23 | 1998-11-27 | COLLECTOR BOX FOR HEAT EXCHANGER, PARTICULARLY FOR AIR CONDITIONING CIRCUIT OF MOTOR VEHICLE | |
FR2755222B1 (en) * | 1996-10-30 | 1999-01-08 | Valeo Thermique Moteur Sa | HEAT EXCHANGER COMPRISING A COLLECTION BOX WITH TWO ADJACENT COMPARTMENTS |
-
1998
- 1998-06-23 FR FR9807923A patent/FR2780152B1/en not_active Expired - Fee Related
-
1999
- 1999-06-22 WO PCT/FR1999/001497 patent/WO1999067592A1/en active IP Right Grant
- 1999-06-22 DE DE69910533T patent/DE69910533T2/en not_active Expired - Lifetime
- 1999-06-22 EP EP99957195A patent/EP1015838B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9967592A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1884734A1 (en) * | 2006-07-25 | 2008-02-06 | Delphi Technologies, Inc. | Heat exchanger assembly with partitioned manifolds |
US7484555B2 (en) | 2006-07-25 | 2009-02-03 | Delphi Technologies, Inc. | Heat exchanger assembly |
Also Published As
Publication number | Publication date |
---|---|
EP1015838B1 (en) | 2003-08-20 |
DE69910533D1 (en) | 2003-09-25 |
FR2780152B1 (en) | 2001-03-30 |
FR2780152A1 (en) | 1999-12-24 |
DE69910533T2 (en) | 2004-06-24 |
WO1999067592A1 (en) | 1999-12-29 |
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