US20150129186A1 - Heat Exchanger Having A Reinforced Collector - Google Patents

Heat Exchanger Having A Reinforced Collector Download PDF

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Publication number
US20150129186A1
US20150129186A1 US14/402,789 US201314402789A US2015129186A1 US 20150129186 A1 US20150129186 A1 US 20150129186A1 US 201314402789 A US201314402789 A US 201314402789A US 2015129186 A1 US2015129186 A1 US 2015129186A1
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United States
Prior art keywords
wall
exchanger
cover
heat exchange
double
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Abandoned
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US14/402,789
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English (en)
Inventor
Alan Day
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Valeo Systemes Thermiques SAS
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Valeo Systemes Thermiques SAS
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Assigned to VALEO SYSTEMES THERMIQUES reassignment VALEO SYSTEMES THERMIQUES ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DAY, ALAN
Publication of US20150129186A1 publication Critical patent/US20150129186A1/en
Abandoned legal-status Critical Current

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    • 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
    • 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
    • F28F9/0226—Header boxes formed by sealing end plates into covers with resilient gaskets
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • 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
    • 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
    • F28D2021/0082—Charged air 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
    • F28F2225/00—Reinforcing means
    • F28F2225/08—Reinforcing means for header boxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/12—Fastening; Joining by methods involving deformation of the elements
    • F28F2275/122—Fastening; Joining by methods involving deformation of the elements by crimping, caulking or clinching

Definitions

  • the technical field of the present invention is that of heat exchangers which are configured to implement an exchange of heat between a first fluid and a second fluid and are more particularly intended to be installed in a motor vehicle.
  • a heat exchanger is, for example, a charge air cooler.
  • a motor vehicle can conventionally be equipped with an internal combustion engine combined with a turbocharger.
  • the latter increases the temperature of the intake gases, thereby impairing proper filling of the combustion chambers of the engine.
  • a heat exchanger the function of which is to cool the intake gases before they enter these combustion chambers, thereby making it possible to increase the density of the intake gases and thus to improve the stoichiometric ratio in the combustion chambers.
  • Such a heat exchanger conventionally comprises a plurality of tubes through which the intake gases flow, the spaces between the tubes being for their part flowed through by a cooling fluid.
  • the intake gases are channeled through a cover secured to a manifold, the latter being configured to receive, in a sealed manner, the end of each tube through which the intake gases enter.
  • the aim of the present invention is thus to solve the above-described drawback mainly by reinforcing the peripheral edge of the manifold, the latter being very particularly designed to receive a cover and fix it by crimping.
  • the invention proposes providing means for absorbing forces on a component of the heat exchange body, in particular on the tube or tubes through which the intake gases that are subjected to high pressure pass.
  • the subject of the invention is thus a heat exchanger comprising a heat exchange body, at least one cover and a manifold connecting the cover to the heat exchange body with the aid of a crimping device that projects from the manifold and is folded over the cover, the heat exchange body comprising a plurality of tubes that are able to channel a first fluid, the manifold comprising a base plate surrounded by an edge for fixing the cover, characterized in that the base plate and the fixing edge delimit a housing for receiving a heel of the cover, the fixing edge being formed by a double-thickness wall, one end of which is fixed to at least one constituent tube of the heat exchange body.
  • the fixing of the end of the double-thickness wall to at least one tube thus ensures absorption of mechanical forces, this helping significantly to increase the mechanical strength of the fixing edge with respect to stresses generated by the pressure or the temperature of the first fluid that is able to flow inside the heat exchanger according to the invention.
  • the heat exchange body can also comprise a multiplicity of dissipation devices that are interposed between the tubes and are in contact with a second fluid that is able to pass through the heat exchange body.
  • the end of the double-thickness wall is fixed to a plurality of tubes.
  • the case in which the end extends along a longitudinal face of the exchanger is targeted here, the end then being brazed to a lateral wall of a plurality of tubes bordering the longitudinal face.
  • a tube comprises two longitudinal walls that are joined together by two lateral walls, the fixing edge comprising a band transverse to the base plate and fixed to at least one of the lateral walls of at least one tube over a length of at least 1 mm.
  • the end is fixed to a longitudinal wall of an end tube of the heat exchange body.
  • the heat exchange body is laterally terminated by a plate installed at a distance of at least 0.1 mm from the double-thickness wall, this distance being a minimum to avoid brazing between the two elements in question.
  • a dissipation device is interposed between the plate and the end tube, the dissipation device being at a distance of at least 0.1 mm from the double-thickness wall, this distance being a minimum to avoid brazing between the two elements in question.
  • the exchanger according to the invention may be configured such that a distance of at least 2 mm is provided between the base plate and the end of the double-thickness wall. Such a distance makes it possible to form a strut by means of the end brazed to the tube. A strut of this type opposes an opening phenomenon of the fixing edge under the effect of the pressure in the cover, this making it possible to increase the level of reliability of the sealing by crimping.
  • the base plate comprises at least one opening in which one end of a tube is housed, said opening being bordered by a collar turned toward the heat exchange body.
  • Such an exchanger may comprise a seal fitted in the receiving housing, at least between the heel of the cover and the fixing edge.
  • the double-thickness wall is formed by a first wall and a second wall brazed to the first wall.
  • the first and second wall are produced from one and the same metal sheet and connected together by a fold.
  • the second wall is separated beforehand from the first wall and then attached to the latter prior to a brazing step.
  • the double-thickness wall may comprise at least one corner at which a mechanical reinforcement device is formed.
  • the latter avoids an increase, under the effect of the pressure, in the angular inclination formed between the two parts of the double-thickness wall which border the corner.
  • the mechanical reinforcement device is in particular a chamfer formed at the corner of the first wall.
  • this mechanical reinforcement device is advantageously a fillet formed at the corner of the second wall.
  • this reinforcement device may also be formed by the combination of the chamfer and the fillet, formed on one or the other of the walls. Such an arrangement makes it possible to generate forms which combine in order to oppose the mechanical stresses to which the manifold is subjected.
  • the first wall may comprise a first strip forming a base of the housing and a first side wall laterally delimiting the housing, the first strip and the first side wall being connected by the chamfer.
  • the second wall may comprise a second strip brazed to the first strip and a second side wall brazed to the first side wall, the second strip and the second side wall being connected by a fillet at a distance from the chamfer.
  • the fillet and the chamfer form in this case the mechanical reinforcement device, and such a distance between this fillet and this chamfer helps significantly to increase the mechanical integrity of the fixing edge.
  • the end comprises a bend positioned such that one face of the second wall is brazed to the tube.
  • Such an arrangement makes it possible to increase the fixing area, in particular for brazing, between the double-thickness wall and the tube or tubes, at the end.
  • the crimping device may comprise a plurality of crimping tabs projecting from the first wall, said crimping tabs being folded over the heel of the cover in the final manufactured state of the heat exchanger.
  • the invention can also cover a system for cooling intake gases of an internal combustion engine of a motor vehicle, comprising a heat exchanger incorporating any one of the above-described features, in which the first fluid is formed by the intake gases of the internal combustion engine while the second fluid is formed by a stream of air external to the vehicle.
  • One advantage of the invention lies in the possibility of increasing the mechanical strength of the manifold, in particular of its fixing edge, in a simple manner.
  • the fixing of the end produces an additional point of contact with the tubes, thereby forming a means of taking up forces, the latter significantly limiting the deformations of the fixing edge when the heat exchanger is subjected to a high internal pressure and/or a high internal temperature.
  • a heat exchanger provided with a manifold with a double-thickness wall, the end of this wall being secured to at least one tube that channels the first fluid can resist high pressures and temperatures.
  • FIG. 1 is a perspective view of a heat exchanger according to the invention
  • FIG. 2 is a perspective view of the heat exchanger according to the invention, partially showing two adjacent faces of this exchanger, and its manifold,
  • FIG. 3 is a view illustrating the fixing of the manifold to a lateral face of the heat exchange body, in cross section on the plane A illustrated in FIG. 1 ,
  • FIG. 4 is a view illustrating the fixing of the manifold to a longitudinal face of the heat exchange body, in cross section on the plane B illustrated in FIG. 1 .
  • FIG. 1 illustrates an exemplary embodiment of a heat exchanger 1 according to the invention.
  • a heat exchanger is in particular a charge air cooler that is used to cool the intake gases of an internal combustion engine.
  • the heat exchanger 1 is configured to implement an exchange of heat between a first fluid and a second fluid.
  • the heat exchanger is designed not only to channel a first gaseous fluid such as a charge air stream, but also to be passed through by a second gaseous fluid such as a stream of air surrounding the exchanger.
  • the heat exchanger 1 can be an air/air exchanger installed in a motor vehicle, the second fluid being a stream of dynamic air set in motion by the movement of the vehicle or by a motor-fan unit mounted on the vehicle.
  • FIG. 1 includes an orthonormal frame of reference which defines the heat exchanger 1 , the axis OX representing a longitudinal dimension or length of the exchanger, the axis OY representing a lateral dimension or width of the exchanger, while the axis OZ represents a vertical dimension or height of the heat exchanger 1 according to the invention.
  • the heat exchanger 1 comprises a heat exchange body 2 which forms the site of the heat exchange between the first fluid and the second fluid. Located at each end of the heat exchange body 2 there is a manifold 3 covered by a cover 4 .
  • the manifold 3 distributes the first fluid through a plurality of constituent tubes 6 of the heat exchange body 2 , this first fluid being channeled through the cover 4 to or from the manifold 3 .
  • the heat exchange body 2 also comprises a multiplicity of dissipation devices 7 . Each of these is interposed between two adjacent tubes 6 so as to form a space between the tubes, the second fluid, that is to say the stream of dynamic air, flowing in said space.
  • a dissipation device is formed by an insert, in particular in the form of a zigzag, each peak of which is secured to two adjacent tubes.
  • This insert may have louvers.
  • This dissipation device 7 may also be formed by a substantially flat metal sheet on which a multiplicity of louvers are formed.
  • the cover 4 comprises at least one opening 5 through which the first fluid enters or exits the heat exchanger 1 .
  • the manifold 3 is thus on one side brazed to the heat exchange body 2 and on the other side secured to the cover 4 by a device 8 for crimping the manifold 3 to the cover 4 .
  • a crimping device 8 is formed overall by a set of crimping tabs that are folded over an edge of the cover, referred to as heel below.
  • the heat exchange body 2 has a rectangular section. It is thus delimited by an inlet face for the second fluid and by an outlet face for this second fluid, referred to as the first longitudinal face 9 and second longitudinal face 10 , respectively, of the heat exchange body 2 .
  • the latter is also delimited by a first lateral face 11 and by a second lateral face 12 which are disposed between the first longitudinal face 9 and the second longitudinal face 10 .
  • the latter are perpendicular to the direction of movement of the second fluid, while the first lateral face 11 and the second lateral face 12 extend in planes parallel to this direction.
  • the heat exchange body 2 comprises the plurality of tubes 6 secured to the manifold 3 by brazing. These tubes are produced, for example, from a metal sheet folded on itself so as to delimit an internal volume in which the first fluid, in particular the charge air stream, flows.
  • a tube 6 is delimited by two parallel longitudinal walls that are joined by two lateral walls.
  • the longitudinal walls of the tubes are parallel to at least one of the lateral faces 11 or 12 which border the heat exchange body 2 .
  • the lateral walls of the tubes thus extend in the plane of the first and/or second longitudinal face 9 , 10 of the heat exchange body 2 .
  • the longitudinal wall or walls of the tubes 6 extend in a plane OX-OY, while the lateral walls of the tubes 6 , although having a rounded shape, extend generally in a plane OX-OZ.
  • each tube 6 is identical, the two tubes immediately adjacent to the lateral faces 11 and 12 of the heat exchange body 2 being referred to as end tubes 6 a and 6 b below.
  • a turbulator may be installed inside the internal volume of each tube 6 .
  • This turbulator (not shown) disrupts the flow of the first fluid in the tube 6 so as to maximize the transfer of heat between the first fluid and the walls delimiting the tube 6 .
  • This turbulator may also be fixed to the two longitudinal walls of the tube so as to increase the mechanical integrity of such a tube.
  • FIG. 2 shows the manifold 3 , seen at a corner formed between a first longitudinal face 9 and a first lateral face 11 of the heat exchange body 2 .
  • the manifold 3 comprises a base plate that receives one end of the tubes 6 , not visible in this figure, surrounded by an edge 13 for fixing the cover 4 .
  • the heat exchange body 2 comprises its plurality of tubes 6 , between which the heat dissipation device 7 , for example an insert, is disposed.
  • the first lateral face 11 of the heat exchange body 2 is formed by a plate 14 , that is to say a metal sheet which is in particular rectilinear.
  • a dissipation device 7 brazed to the plate and to the longitudinal wall of the end tube 6 b.
  • the edge 13 for fixing the cover receives a heel 15 of the cover 4 , formed on a peripheral edge delimiting the opening of this cover 4 .
  • a heel has the shape of a shoulder produced by increasing the thickness of the cover in the region of this opening.
  • the fixing edge 13 is formed by a double-thickness wall 16 , the latter extending all around the heat exchanger 1 , that is to say along both lateral faces and both longitudinal faces that define the heat exchange body 2 .
  • a double-thickness wall 16 the latter extending all around the heat exchanger 1 , that is to say along both lateral faces and both longitudinal faces that define the heat exchange body 2 .
  • the absence of double thickness of the fixing edge in the region of at least one corner, and advantageously of all the corners between the lateral faces and the longitudinal faces of the heat exchange body 2 will be noted.
  • this double-thickness wall 16 is formed by a first wall 21 and by a second wall 22 brazed to the first wall 21 , the double-thickness wall moreover comprising a fold 23 forming a 180° elbow which connects the first wall 21 to the second wall 22 .
  • the double-thickness wall 16 comprises at least one end 17 fixed to at least one constituent tube 6 , 6 a, 6 b of the heat exchange body 2 .
  • Such fixing can take place either only along one or more lateral faces 11 , 12 delimiting the heat exchange body 2 , or only along one or more longitudinal faces 9 , 10 delimiting the heat exchange body 2 , or along both one or more lateral and one or more longitudinal faces of the heat exchange body 2 .
  • the end 17 of the double-thickness wall 16 is fixed along both lateral faces and both longitudinal faces of the heat exchange body 2 .
  • the end 17 of the double-thickness wall 16 is brazed to the lateral wall 18 of at least one tube 6 and preferably to the lateral wall of each constituent tube 6 of the heat exchange body 2 .
  • the end 17 of the double-thickness wall 16 is brazed to the longitudinal wall 19 of the end tube or tubes 6 a, 6 b of the heat exchange body 2 . Such brazing is carried out on this longitudinal wall in the plane OX-OY illustrated in FIG. 1 .
  • FIG. 2 also illustrates an exemplary embodiment of the crimping device 8 .
  • the latter comprises a plurality of crimping tabs 20 which are folded over the heel 15 of the cover 4 .
  • the crimping tabs 20 project from the first wall 21 .
  • FIG. 3 is a view showing in detail the positioning of the cover 4 in the manifold 3 and the fixing provided between this manifold 3 and the end tube 6 a or 6 b. This depiction illustrates a cross section taken in the plane A shown in FIG. 1 .
  • the manifold 3 comprises a base plate 24 surrounded by the edge 13 for fixing the cover 4 .
  • the base plate 24 is provided with openings, having an elongate shape, which receive one end of each tube 6 . These openings can be provided with a collar 25 which is oriented for example toward the heat exchange body 2 or toward the cover 4 .
  • the fixing edge 13 forms a peripheral belt around the base plate 24 , this fixing edge preferably being formed integrally from the material of the base plate 24 .
  • this edge 13 for fixing the cover 4 is formed by the double-thickness wall 16 , the latter ending at the end 17 at least partially fixed to one or more tubes, in particular to one and/or the other of the constituent end tubes 6 a, 6 b of the heat exchange body 2 .
  • double-thickness means that the fixing edge 13 is reinforced by the provision of two thicknesses of walls pressed against one another.
  • the double-thickness wall 16 is thus formed by a first wall 21 and by a second wall 22 immediately adjacent to the first wall 21 , following the contours thereof.
  • the second wall 22 is at least partially secured to the first wall 21 by a braze between these two walls.
  • the first wall 21 is also secured to the second wall 22 by means of a fold 23 .
  • the first wall 21 and the second wall 22 are produced from one and the same metal sheet which has been folded through 180° at the fold 23 in order to press the second wall 22 against the first wall 21 .
  • the second wall 22 is considered to be formed integrally from the material of the first wall 21 .
  • the second wall 22 may be a part previously separate from the first wall 21 and attached before being brazed to the latter, so as to form the double-thickness wall 16 once they have been secured together, in particular by brazing.
  • a thickness of the double-thickness wall 16 is at least twice as large as a thickness of the base plate 24 .
  • the thickness of the double-thickness wall 16 is strictly equal to twice the thickness of the base plate 24 .
  • the thickness of the double-thickness wall 16 is measured in the direction OX, while the thickness of the base plate 24 is measured in a direction OZ, these two directions being shown in this figure.
  • the edge 13 for fixing the cover 4 at least partially delimits a housing 26 for receiving the heel 15 formed at the edge of the opening of the cover 4 .
  • the base plate 24 is extended by a band 27 which extends in a direction at least transverse, and preferably perpendicular to the plane of extension of the base plate 24 , that is to say the plane in which the openings for receiving the ends of tubes 6 extend.
  • the housing 26 which receives the heel 15 of the cover is thus bordered on one side by the band 27 and on the other by the first constituent wall 21 of the double-thickness wall 16 .
  • the band 27 is in this case separated from the longitudinal wall 19 of the end tube 6 a , 6 b on account of the presence of a collar 25 .
  • this housing 26 can receive a seal 35 that provides sealing between the first fluid and the surroundings of the heat exchanger according to the invention. This seal 35 thus bears against the heel 15 , against the band 27 and against the first wall 21 in the region of the housing 26 .
  • the first wall 21 comprises a first strip 28 extended by a first side wall 29 .
  • the first strip 28 forms the base of the housing 26 against which the seal 35 bears.
  • the first side wall 29 extends at least partially in line with the housing 26 , in particular laterally thereto.
  • the first strip 28 and the first side wall 29 are in particular flat.
  • the mechanical reinforcement device is in the form of a chamfer 30 , that is to say a substantially flat edge that is inclined with respect to the first strip 28 and with respect to the first side wall 29 .
  • This chamfer 30 thus connects the first strip 28 to the first side wall 29 , this chamfer being an element involved in the mechanical reinforcement of the edge 13 for fixing the cover 4 .
  • the second wall 22 of the double-thickness wall 16 comprises a second strip 31 extended by a second side wall 32 .
  • the second strip 31 extends in a plane parallel to the plane of extension of the first strip 28 , these two strips being secured together by a brazed connection.
  • the second side wall 32 extends in a plane parallel to the plane of extension of the first side wall 29 and is brazed to the latter.
  • the second strip 31 is joined to the second side wall 32 by a fillet 33 , that is to say an edge with a rounded section.
  • This fillet 33 forms a second exemplary embodiment of the mechanical reinforcement device of the double-thickness wall 16 .
  • This fillet 33 is opposite the chamfer 30 and is configured so as to be separated from the chamfer 30 , such an arrangement helping to increase the mechanical strength of the double-thickness wall 16 .
  • the second strip 31 and the second side wall 32 are for example flat.
  • This combination of the chamfer 30 and the fillet 33 forms a third variant embodiment of the mechanical reinforcement means of the double-thickness wall 16 .
  • this mechanical reinforcement device can be formed either only by the chamfer 30 , or only by the fillet 33 , or by the combination of this chamfer 30 with the fillet 33 , such a combination also making it possible to increase the mechanical strength of the double-thickness wall 16 .
  • this reinforcement means may also be formed as soon as the first wall 21 and the second wall 22 each have a corner, the corner formed on the first wall 21 having a different shape, in cross section, than the corner formed on the second wall 22 , these two corners facing one another.
  • the end 17 of the double-thickness wall 16 is formed by an end part of the second strip 31 . According to an exemplary embodiment that is not shown, it is one edge of the second strip 31 which is brazed to the end tube 6 a, 6 b.
  • the end 17 comprises a bend 34 oriented such that one or the other of the faces delimiting the second strip 31 bears against and is brazed to the end tube 6 a, 6 b.
  • the bend 34 forms an angle of 90° turned toward the heat exchange body 2 , that is to say away from the cover 4 fixed to the manifold 3 in question.
  • the double-thickness wall 16 comprises a number of crimping tabs 20 formed by portions which extend the first wall 21 .
  • these crimping tabs 20 are shown before being folded over the heel 15 of the cover 4 . In the final assembly position, these crimping tabs are pressed against the heel 15 of the cover 4 so as to exert a compressive force against the seal 35 .
  • the end 17 of the double-thickness wall 16 is fixed to the longitudinal wall 19 of the end tube 6 a, 6 b of the heat exchange body 2 .
  • the heat exchanger is designed such that the double-thickness wall 16 is not in contact with the plate 14 and/or with the dissipation device 7 .
  • the plate 14 is installed in the heat exchange body 2 so as to form a distance of at least 0.1 mm from the double-thickness wall 16 .
  • this distance has the reference D 1 and is measured in the direction OZ between an end edge of the plate 14 and the fillet 33 , or the second strip 31 .
  • the distance D 1 is at most 12 mm.
  • the dissipation device 7 is interposed between the plate 14 and the end tube 6 a, 6 b.
  • the dissipation device 7 is fixed in the heat exchange body 2 so as to maintain a separation distance D 2 from the double-thickness wall 16 , including its end 17 , of at least 0.1 mm.
  • This distance D 2 is measured, for example, between a last peak of the dissipation device 7 and the second strip 31 , or the edge of the end 17 .
  • the distance D 2 is at most 10 mm.
  • each tube 6 is connected to the base plate 24 by a braze provided in the region of the collar 25 .
  • the edge 13 for fixing the cover is in particular reinforced when a distance with the reference D 3 is provided between the base plate 24 and the end 17 of the double-thickness wall 16 brazed to the end tube 6 a, 6 b.
  • a distance is at least 2 mm.
  • This distance D 3 is measured, for example, between a face of the base plate turned toward the heat exchange body 2 and a plane passing through a face of the second wall 22 brazed to the first wall 21 .
  • the distance D 3 is at most 6.5 mm.
  • FIG. 4 is a view showing in detail the fixing between the manifold 3 and the lateral wall 18 of the constituent tubes 6 , 6 a, 6 b of the heat exchange body 2 .
  • This depiction illustrates a cross section taken in the plane B shown in FIG. 1 .
  • the differences with respect to FIG. 3 will be described and reference will be made to the description given with respect thereto in order to implement the structure of the elements in common that are shown in FIG. 4 .
  • the band 27 disposed perpendicularly to the base plate 24 is brazed to the lateral wall 18 delimiting at least one tube 6 of the heat exchange body 2 .
  • such brazing is carried out to the lateral wall of each tube 6 , including the end tubes 6 a, 6 b.
  • This brazing is produced over a distance with the reference D 4 which is at least 1 mm and at most 7.5 mm.
  • This distance D 4 is measured, for example, between an edge delimiting the opening of the tubes at the base plate 24 and a straight line passing through the base of the housing 26 delimited by the first constituent strip 28 of the first wall 21 .
  • the end 17 of the double-thickness wall 16 is also fixed to the lateral wall 18 of at least one tube 6 , in a similar manner to the solutions described with respect to FIG. 3 .
  • this brazing of the end 17 is carried out to the lateral wall of each tube 6 , including the end tubes 6 a, 6 b.
  • the heat exchange body 2 and the manifold 4 can be produced from an aluminum alloy.
  • the cover 4 can be produced from an aluminum alloy or a synthetic material.
  • the above-described heat exchanger 1 can be incorporated into a system for cooling intake gases or exhaust gases of an internal combustion engine.
  • the first fluid is formed by the intake gases, in particular a charge air stream
  • the second fluid is formed by an air stream, for example external to the vehicle which holds such a cooling system.
  • the heat exchanger 1 is thus designed such that the second fluid passes through the heat exchange body 2 , dissipating the heat generated by the first fluid into the second fluid, by means of the tubes and the dissipation devices.
  • the second fluid passes through the heat exchange body 2 in a direction perpendicular, or substantially perpendicular, to the direction of movement of the first fluid in the tubes 6 .

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
US14/402,789 2012-05-24 2013-05-16 Heat Exchanger Having A Reinforced Collector Abandoned US20150129186A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1254741 2012-05-24
FR1254741A FR2991037B1 (fr) 2012-05-24 2012-05-24 Echangeur de chaleur a collecteur renforce
PCT/EP2013/060184 WO2013174720A1 (fr) 2012-05-24 2013-05-16 Echangeur de chaleur a collecteur renforce

Publications (1)

Publication Number Publication Date
US20150129186A1 true US20150129186A1 (en) 2015-05-14

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US14/402,789 Abandoned US20150129186A1 (en) 2012-05-24 2013-05-16 Heat Exchanger Having A Reinforced Collector

Country Status (8)

Country Link
US (1) US20150129186A1 (fr)
EP (1) EP2856058B1 (fr)
JP (1) JP6030228B2 (fr)
KR (1) KR101639509B1 (fr)
CN (1) CN104583707B (fr)
FR (1) FR2991037B1 (fr)
PL (1) PL2856058T3 (fr)
WO (1) WO2013174720A1 (fr)

Cited By (3)

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US20180292142A1 (en) * 2016-10-14 2018-10-11 Dana Canada Corporation Heat Exchanger Having Aerodynamic Features To Improve Performance
US10302373B2 (en) * 2017-03-03 2019-05-28 Denso International America, Inc Heat exchanger
US20210324820A1 (en) * 2020-04-16 2021-10-21 Mahle International Gmbh Indirect charge air cooler

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FR2991038A1 (fr) 2012-05-24 2013-11-29 Valeo Systemes Thermiques Echangeur de chaleur a collecteur renforce
FR3026168B1 (fr) * 2014-09-23 2016-10-21 Valeo Systemes Thermiques Procede de fabrication d'un echangeur de chaleur.
EP3264019A1 (fr) * 2016-06-30 2018-01-03 Valeo Systemes Thermiques Collecteur, en particulier pour une utilisation dans un système de refroidissement d'un refroidisseur
CN106767090A (zh) * 2016-12-07 2017-05-31 泰安福星汽车配件有限公司 一种加强型散热管及加工工艺
EP3564613A1 (fr) 2018-05-03 2019-11-06 Mann+Hummel GmbH Échangeur de chaleur, système d'admission d'air avec échangeur de chaleur et procédé de montage d'un échangeur de chaleur

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US4332293A (en) * 1980-04-30 1982-06-01 Nippondenso Co., Ltd. Corrugated fin type heat exchanger
US6296051B1 (en) * 1998-09-25 2001-10-02 Valeo Termique Moteur Heat exchanger with reduced space requirement, in particular for motor vehicle
US20110168370A1 (en) * 2008-06-26 2011-07-14 Paul Garret Heat exchanger and casing for the heat exchanger
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US20180292142A1 (en) * 2016-10-14 2018-10-11 Dana Canada Corporation Heat Exchanger Having Aerodynamic Features To Improve Performance
US10809009B2 (en) 2016-10-14 2020-10-20 Dana Canada Corporation Heat exchanger having aerodynamic features to improve performance
US10302373B2 (en) * 2017-03-03 2019-05-28 Denso International America, Inc Heat exchanger
US20210324820A1 (en) * 2020-04-16 2021-10-21 Mahle International Gmbh Indirect charge air cooler

Also Published As

Publication number Publication date
KR101639509B1 (ko) 2016-07-13
EP2856058A1 (fr) 2015-04-08
PL2856058T3 (pl) 2016-11-30
CN104583707A (zh) 2015-04-29
WO2013174720A1 (fr) 2013-11-28
JP2015520353A (ja) 2015-07-16
JP6030228B2 (ja) 2016-11-24
FR2991037B1 (fr) 2014-06-20
EP2856058B1 (fr) 2016-05-04
CN104583707B (zh) 2017-02-22
KR20150017362A (ko) 2015-02-16
FR2991037A1 (fr) 2013-11-29

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