EP2901097A1 - Echangeur de chaleur, notamment pour vehicule automobile, et procede d'assemblage associe - Google Patents
Echangeur de chaleur, notamment pour vehicule automobile, et procede d'assemblage associeInfo
- Publication number
- EP2901097A1 EP2901097A1 EP13766334.0A EP13766334A EP2901097A1 EP 2901097 A1 EP2901097 A1 EP 2901097A1 EP 13766334 A EP13766334 A EP 13766334A EP 2901097 A1 EP2901097 A1 EP 2901097A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- casing
- fluid
- heat exchanger
- flat tubes
- bundle
- 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
- 238000000034 method Methods 0.000 title claims description 25
- 239000012530 fluid Substances 0.000 claims abstract description 69
- 238000007789 sealing Methods 0.000 claims description 19
- 238000005219 brazing Methods 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 239000013529 heat transfer fluid Substances 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
-
- 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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/1684—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits having a non-circular cross-section
-
- 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
- F28F9/0221—Header boxes or end plates formed by stacked elements
Definitions
- Heat exchanger in particular for a motor vehicle, and associated assembly method.
- the invention relates to a heat exchanger, in particular for a motor vehicle.
- the invention also relates to methods of assembling such a heat exchanger.
- a heat exchanger for example used in the automotive industry and more specifically in an internal combustion engine of a motor vehicle, comprises heat exchange elements and fluid flow in which heat exchanging fluids circulate. between them.
- the heat exchange elements may for example comprise tubes or plates, gas flow disturbing fins and / or fluid flow disruptors or the like.
- Exchangers comprising a bundle of flat tubes arranged parallel to one another on one or more parallel rows with one another, these tubes being arranged to allow the circulation of a first fluid between said flat tubes and, on the other hand, to allow the circulation a second fluid inside said flat tubes, exchanging heat with the first fluid.
- a known structure of such a bundle is a stack of flat tubes with enlarged ends, the flat tubes being fixed together at their widened ends.
- the bundle of flat tubes is contained inside a casing connected to a circuit of the first fluid and delimiting the space of circulating said first fluid between the flat tubes.
- the ends of the harness and the housing are also generally connected to a manifold and an inlet housing and an outlet housing of the second fluid for circulating the second fluid within the flat tubes.
- the invention therefore aims to at least partially meet the disadvantages of the prior art and to provide an inexpensive heat exchanger and ensuring an optimum seal between the circulation of the first and second fluid.
- the invention therefore relates to a heat exchanger for transferring heat between a first and a second fluid, said heat exchanger comprising:
- the housing comprises four independent walls fixed to each other and forming said housing.
- the independent walls are fixed together by brazing.
- the housing is brazed to the beam.
- the widened ends of the flat tubes have a rectangular cross-sectional shape.
- the inlet and the outlet of the first fluid are formed on the same wall of the housing.
- the fixing groove comprises a sealing means.
- At least two flares at the end of the casing comprise folded release appendages on the inlet casing or the output casing of the second fluid.
- the heat exchanger is configured to cool the charge air of an engine in a motor vehicle.
- the invention also relates to a method of assembling a heat exchanger for transferring heat between a first and a second fluid comprising:
- said method comprising the following steps:
- Such a method allows a reduction in production costs by simplifying the fixing steps of the inlet and outlet housings within the fixing groove.
- the latter comprises, between the step of sealing the flat beam inside the housing and the step of sealing the inlet housing of the second fluid outlet box in the housing. fixing groove, an additional step of setting up a sealing means in the fixing groove.
- the formation of a flare at the ends of the casing is made by stamping.
- the casing comprises four independent walls forming said casing and that the fixing of said four independent walls is carried out during the step of sealing the beam inside the casing.
- the step of sealing the beam inside the housing is carried out by brazing.
- FIG. 1 shows a perspective representation of a heat exchanger
- FIG. 1b shows a semi-exploded representation in perspective of the heat exchanger of the preceding figure
- FIG. 2 shows a perspective representation of a flat beam tube
- FIG. 3 shows a perspective view of a heat exchanger before assembling the beam and the casing
- FIG. 4 shows a sectional side view of the connection between a beam, a housing and the housing of a heat exchanger
- FIG. 5 shows a flowchart of the steps of a method of assembling a heat exchanger according to the invention.
- the substantially identical elements bear the same references.
- Figure la shows a heat exchanger 1 for the heat transfer between a first and a second fluid, having a housing 3 provided with an inlet 37a and an outlet 37b of the first fluid.
- the heat exchanger 1 comprises an inlet casing 5a and an outlet casing 5b of the second fluid.
- the housing 3 further comprises at its ends intended to be connected, a flare 32 forming a fixing groove 34 (not visible in Figure la, but visible in Figure 1b) in which is inserted the arrival housing 5a or output 5b of the second fluid.
- At least two flares 32 at each end of the casing 3 may include locking appendages 38 in order to maintain the inlet casing 5a and the outlet casing 5b in the fixing groove 34.
- FIG. 1b shows in more detail the inside of the heat exchanger 1 without the presence of the arrival boxes 5a and the outlet 5b of the second fluid.
- the exchanger 1 comprises within it a beam 7 composed of flat tubes 70 stacked on each other.
- the flat tubes 70 have enlarged ends 72.
- the widened ends 72 for example substantially rectangular in cross section, are fixed together to form the stack of flat tubes 70 constituting the beam 7 the fixing between the widened ends 72 of the flat tubes 70 being joined.
- the casing 3 surrounds said beam 7 and is fixed thereto in a sealed manner so as to delimit a sealed enclosure, in which the first fluid can flow in the interstices 74 (visible in FIGS. 3 and 4) between the flat tubes 70 of said bundle 7.
- the flat tubes 70 are preferably made of metal, their widened ends 72 can thus be made by stamping.
- the enlargement height can be of the order of imm so that the interstices 74 have a height of the order of 2mm and also to limit the stretching of material at the extended ends 72.
- Fixing said flat tubes 70 between them to form the beam 7, can be made by brazing.
- the casing 3 may be more particularly fixed to the beam 7 at the side surfaces 72b of the flat tubes 70 and on the flat surface 72a of the widened ends 72 of the flat tubes 70 at the top and at the base of the beam 7.
- the casing 3 may be in particular attached to the beam 7 only at the widened ends 72 of the flat tubes 70, a space between the housing 3 and the side surfaces 72b being left in order to allow the flow of the first fluid over the entire height of the beam 7.
- the casing 3 is fixed over the entire length of the lateral surfaces 72b of the flat tubes 70 and to allow the circulation of the first fluid over the entire height of the beam 7, the casing 3 comprises stampings 39 (visible on Figures 1a, 1b and 3).
- the inlet 37a and outlet 37b of the first fluid are preferably made on the walls of the casing 3 facing the interstices 74 between the flat tubes 70 of the bundle 7, so that the first fluid passes through the latter in order to allow a good heat exchange.
- the inlet 37a and outlet 37b of the first fluid may in particular be made on opposite walls or on the same wall of the casing 3. In the case where the casing 3 comprises stampings 39, said inlet 37a and outlet 37b of the first fluid may be performed on these.
- the housing 3 may preferably be made of metal and its attachment with the beam 7 when the latter is metallic, be made by brazing.
- FIG. 3 shows an alternative embodiment in which the casing 3 comprises four independent walls 3a, 3b, 3c and 3d, for example metallic, fixed to each other, for example by brazing, and forming said casing 3. These independent walls 3a , 3b, 3c and 3d can thus be fixed to each other at the time of attachment of the beam 7 with the housing 3, allowing a good fit of the housing 3 around the beam 7 and cost savings.
- FIG. 4 shows, in sectional view, an end of a heat exchanger 1. It is thus possible to see that the fixing groove 34 is formed on one side by the flaring 32 of the casing 3 and on the other by the end of the beam 7.
- the inlet casing 5a or output 5b of the second fluid thus fits into the fixing groove 34 to guide the second fluid in the beam 7, inside the flat tubes 70
- the fixing groove 34 is directly formed between the flaring 32 of the casing 3 and the end of the bundle 7 makes it possible to simplify the assembly of the heat exchanger 1 as well as to limit manufacturing costs by limiting the number of parts needed for its assembly.
- the fixing groove 34 may further comprise a sealing means 9 placed inside thereof in order to improve the sealing and / or fixing of the 5a and 5b output casings of the second fluid.
- This sealing means 9 may for example be a seal or glue.
- the inlet casings 5a and 5b of the outlet are inserted into the fixing groove 34 and their attachment can be achieved by gluing or crimping.
- the blocking means 38 may be, for example, appendages of the casing 3 folded onto said inlet 5a and outlet 5b casings (as shown in FIGS. 1a, 1b, 3 and 4) or tie rods and reinforce the fixation and maintaining said arrival boxes 5a and 5b output.
- the arrival boxes 5a and 5b output can also be metal and thus can be fixed for example by welding.
- the heat exchanger 1 can particularly be configured to cool the charge air of an engine in a motor vehicle.
- the supercharging air corresponding to the second fluid, arrives at the arrival box 5a, and passes into the bundle 7, inside the flat tubes 70.
- a heat transfer fluid for example a mixture water and glycol, acting as a first fluid and coming from a cooling circuit, enters the inlet 37a, circulates between the flat tubes 70 of the bundle 7 inside the casing 3.
- Inside the casing 3 there is heat exchange between the charge air and the heat transfer fluid and the cooled charge air exits through the outlet housing 5b to go to the engine cylinders, while the heated heat transfer fluid exits through the outlet 37b of the housing 3 to be cooled for example at a radiator in the cooling circuit.
- the present invention also relates to a method of assembling a heat exchanger 1 illustrated in FIG. 5 and comprising the following steps:
- a first step 100 of the assembly process corresponds to the supply of the bundle 7 and the supply of the casing 3.
- the bundle 7 can be previously made completely, for example by brazing a stack of flat tubes 70 at their extended ends. 72.
- the beam 7 may nevertheless be incomplete and may include flat tubes 70 with enlarged ends 72 not yet fixed to each other.
- the casing 3 can be supplied complete or can be composed of four independent walls 3a, 3b, 3c and 3d being intended to form said casing 3.
- a second step 102 of the assembly process corresponds to the formation of a flare 32 at the ends of the casing 3, for example by stamping the latter or the four independent walls 3a, 3b, 3c and 3d.
- the third step 104 of the assembly process corresponds to the sealed fastening of the beam 7 inside the casing 3.
- This attachment is made at the widened ends 72 of the flat tubes 70, so that the flaring 32 at the ends of the casing 3, in cooperation with the ends of the beam 7, forms a fixing groove 34, and that said casing 3 delimits a sealed enclosure in which a first fluid flows between the flat tubes 70 of the beam 7 from an inlet 37a to an outlet 37b of the first fluid.
- This attachment can be made for example by soldering if the housing 3 and the beam 7 are both metallic.
- the housing 3 comprises four independent walls 3a, 3b, 3c and 3d
- the latter are fixed to each other during this third step 104. It is the same in the case where the flat tubes 70 of the beam 7 are not fixed between them.
- the four independent walls 3a, 3b, 3c and 3d and the beam 7 are fixed together. allowing an adjustment of the different parts between them and thus to guarantee a good sealing.
- the assembly method may comprise, following the third fixing step 104, an optional step 106 of placing a sealing means 9 inside the fixing groove 34, for example a gasket or glue.
- a fourth step 108 corresponds to the sealed attachment of the inlet casing 5a and the outlet casing 5b of the second fluid in the fixing groove 34, so that the second fluid circulates inside the flat tubes 70 of the bundle 7.
- This fixing is carried out in particular by insertion of said inlet boxes 5a and 5b outlet in the fixing groove 34.
- the arrival boxes 5a and 5b output can be glued, crimped or welded if they are metal and their attachment reinforced by the locking means 38.
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)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1259165A FR2996295B1 (fr) | 2012-09-28 | 2012-09-28 | Echangeur de chaleur, notamment pour vehicule automobile, et procede d'assemblage associe. |
PCT/EP2013/069920 WO2014048959A1 (fr) | 2012-09-28 | 2013-09-25 | Echangeur de chaleur, notamment pour vehicule automobile, et procede d'assemblage associe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2901097A1 true EP2901097A1 (fr) | 2015-08-05 |
EP2901097B1 EP2901097B1 (fr) | 2017-07-19 |
Family
ID=47356126
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13766334.0A Not-in-force EP2901097B1 (fr) | 2012-09-28 | 2013-09-25 | Echangeur de chaleur, notamment pour vehicule automobile, et procede d'assemblage associe |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2901097B1 (fr) |
FR (1) | FR2996295B1 (fr) |
WO (1) | WO2014048959A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107687726B (zh) * | 2016-08-03 | 2020-10-27 | 杭州三花研究院有限公司 | 热交换装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4848448A (en) * | 1987-12-28 | 1989-07-18 | Mccord Heat Transfer Corporation | Heat exchange assembly |
DE102004012358A1 (de) * | 2004-03-13 | 2005-09-29 | Dr.Ing.H.C. F. Porsche Ag | Wärmetauscher, insbesondere Ladeluftkühler für ein Kraftfahrzeug |
US7195060B2 (en) * | 2005-04-01 | 2007-03-27 | Dana Canada Corporation | Stacked-tube heat exchanger |
JP5321271B2 (ja) * | 2009-06-17 | 2013-10-23 | 株式会社デンソー | 高温ガス冷却用熱交換器 |
FR2954481B1 (fr) * | 2009-12-18 | 2012-02-03 | Valeo Systemes Thermiques | Echangeur de chaleur |
-
2012
- 2012-09-28 FR FR1259165A patent/FR2996295B1/fr not_active Expired - Fee Related
-
2013
- 2013-09-25 WO PCT/EP2013/069920 patent/WO2014048959A1/fr active Application Filing
- 2013-09-25 EP EP13766334.0A patent/EP2901097B1/fr not_active Not-in-force
Non-Patent Citations (1)
Title |
---|
See references of WO2014048959A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2996295B1 (fr) | 2014-10-10 |
FR2996295A1 (fr) | 2014-04-04 |
EP2901097B1 (fr) | 2017-07-19 |
WO2014048959A1 (fr) | 2014-04-03 |
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