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
  • 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
  • F28D7/163—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 with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
  • F28D7/1653—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 with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing the conduit assemblies having a square or rectangular shape
• • 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
• • 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
  • 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
  • F28D21/0001—Recuperative heat exchangers
  • F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
• • 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
  • F28F2275/04—Fastening; Joining by brazing
• • 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

• 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, plates, fins, flow disruptors, etc.
• the exchanger may comprise a bundle of tubes arranged parallel to each other on one or more parallel rows with one another, these tubes being arranged to carry a first fluid, while a second fluid flows between the tubes and exchange of heat with the first fluid.
• Many fluid associations can be envisaged, be they liquids and / or gases.
• the exchanger comprises a housing for receiving the tubes, which comprises a plurality of walls forming the volume in which the tubes are received. It is generally open at both ends, so that the tubes can be connected to collection or fluid distribution boxes also called manifolds: an inlet manifold and an outlet manifold.
• the first fluid flows into the tubes from the inlet header to the outlet manifold.
• the second fluid flows around the tubes, from an inlet pipe to an outlet pipe, and exchanges heat with the first fluid.
• the exchanger also generally comprises two tube holding plates, the fluid collecting boxes being mounted on the collector plates.
• the tubes pass through orifices in the collector plates and open into the fluid collecting boxes.
• each collector plate comprises means for crimping an edge of the collector box with which it is associated.
• the box is known for example from WO 2008/125309 or from EP 2,031,338 in which the collector plate is in two parts assembled mechanically.
• flattened tubes are provided but of sufficiently large section to offer the fluid a passage section adapted to the desired flow rate.
• Such tubes have a section of slender shape; typically, they may have a rectangular section of dimensions 100mm by 7mm. Furthermore, in applications where for example water, which is a good coolant circulates between the tubes, it is preferable that the distance between successive tubes is low, for example equal to 2 or 3mm or less.
• collector plates with elongated orifices separated by walls of small width, said width corresponding to the distance between the successive tubes.
• the walls separating the orifices have a very large slenderness, that is to say that they are very elongated in one direction but thin in the other two. This raises the question of how they are made.
• punching processes known as "with fine cutting” are known, making it possible, from a relatively thick plate, to produce inter-orifices walls thinner than the thickness of the plate; for example, one can form orifices 60mm long in a 4mm thick plate with inter-orifices walls of width approximately equal to 2.6mm.
• the invention relates to a heat exchanger comprising fluid exchange and flow elements, at least one fluid collection box into which the exchange elements and a housing housing of the elements of the exchange, characterized in that it comprises a flange for fixing the header to the housing, the flange having a groove (G1) for fixing the housing (4) and a groove (G2) for fixing the manifold (11). ), the grooves (G1, G2) having a common wall (19).
• the grooves can receive or accommodate the walls of the housing and the collector box.
• the use of such a fastening flange provided with two grooves with a common wall provides a great compactness to the exchanger. Indeed, the manifold and the casing are compactly attached to each other without being directly fixed to one another, which guarantees the robustness of the assembly and allows in particular a good transmission of constraints.
• the grooves are opposite, that is, they are oriented in opposite directions. More specifically, the exchanger extending generally along an axis which is preferably the overall flow axis of the fluids within it, each groove has a bottom wall substantially transverse to said direction and a transverse peripheral opening, the openings being turned in two opposite directions on the said direction. According to one embodiment, the exchanger comprises at least one collecting plate for holding the exchange elements.
• the header plate and the fixing flange are formed in the same room.
• the fixing flange and the collector plate are separate parts fixed to the housing independently of one another.
• the functions of holding tubes and holding the collecting box are decoupled: two separate parts fulfill these functions, these parts being fixed to the casing independently of one another, that is to say without transmission. direct effort between them.
• a collector plate of small thickness typically 0.8 mm
• orifices of great slenderness it is thus possible to form tubes of slender section and therefore a flattened and compact heat exchanger.
• the function of holding the manifold is provided by the flange, independently. We thus obtain a heat exchanger all the more compact.
• the fastening flange and / or the collector plate is fixed directly to the casing.
• the exchanger thus gains even more compactness.
• the fastening flange and the collector plate are non-contacting with each other.
• the exchange elements comprising tubes in which flows a first fluid (for example a gas) in communication with the box and around which flows a second fluid (for example a liquid), the header plate performs a sealing function between the first fluid and the second fluid and the flange performs a sealing function to the first fluid with the outside of the exchanger.
• a first fluid for example a gas
• a second fluid for example a liquid
• the manifold and the flange are crimped to each other.
• the flange is brazed to the housing.
• the casing comprises at least one positioning tab arranged to be housed in an orifice of the flange for holding the latter on the casing during soldering.
• the orifice is formed in the bottom of the crankcase fixing groove.
• the header plate is brazed to the housing.
• the header plate has a skirt with a surface along which it is brazed to the housing.
• the contact surface is important which ensures good brazing of parts.
• the pipes have a section of generally rectangular shape, preferably whose length to width ratio is greater than 5.
• the invention is particularly applicable to an air-water heat exchanger for example a water cooler recirculated exhaust gas or a charge air cooler of a combustion engine internal combustion of a motor vehicle.
• FIG. 3 shows a perspective view and in section in the plane of its height and its length of the exchanger of Figure 1;
• FIG. 4 shows a perspective view and in section in the plane of its length and its width of the exchanger of Figure 1, without manifold;
• FIG. 5 represents a partially exploded perspective view of the exchanger of FIG. 1, without a collecting box;
• FIG. 6 represents an end view, from below and in perspective of the exchanger of FIG. 1, without a collecting box;
• FIG. 8 shows a perspective view and partially transparent of a corner of the exchanger of Figure 1;
• FIG. 9 shows a perspective view and partially in transparency and in section of a corner of the exchanger of Figure 1;
• FIG. 11 represents a perspective view, from the inside, of a corner of the exchanger of FIG.
• a heat exchanger 1 according to a first embodiment comprises elements 2, 2 ', 3 of heat exchange, a casing 4 for receiving or housing these elements 2 , 2 ', 3, a manifold 11 of air inlet and a manifold 11' of air outlet.
• the housing 4 has orifices 6, 7 for connection to water flow lines 8, 9, in this case an inlet pipe 9 and an outlet pipe 8, connected to a water circuit in which the exchanger 1 is mounted.
• the different elements of the exchanger 1 are brazed to each other, except the boxes 11, 11 'which are crimped; such exchangers with their brazed or crimped elements are well known to those skilled in the art with respect to their general characteristics.
• the exchanger 1 described is an exchanger called “air-water”, that is to say an exchanger in which the fluids that exchange heat are air and water.
• This is for example a water cooler exhaust gas called “recirculated” an internal combustion engine of a motor vehicle or a charge air cooler of such an engine; the water is preferably water from the so-called “low temperature” cooling circuit of said engine; it is typically brine.
• the exchanger 1 is generally of parallelepipedal shape.
• L of the length of the exchanger 1 which is its largest dimension, and in the direction in which the fluids flow, the direction 1 of the width of the exchanger 1 and the direction h of its height (or thickness).
• L, 1 or h respectively denote indifferently the length, the width and the height of the exchanger 1 or the direction of the length, the direction of the width and the direction of the height of the exchanger 1.
• a Cartesian coordinate system (L, 1, h) is formed on the basis of these mutually perpendicular directions.
• the notions of external (or external) and internal (or internal) used in the description refer to relative positions of elements relative to the outside or inside of the exchanger 1.
• the thickness of the tubes 2 can be equal to about 7 or 8 mm for each tube 2, the width 1 of the tubes 2 being equal to about 100 mm.
• the inter-tube spaces may for example be of dimension (parallel to the height h of the exchanger 1) less than 3 mm, for example substantially equal to 2mm.
• the exchanger 1 is compact.
• the tubes 2 are assembled parallel to each other, the set of tubes 2 forming a stack in the direction of the height h of the exchanger 1; we also speak of bundle of tubes; the dimension of the entire beam parallel to the height h of the exchanger 1 is substantially equal to the height h of the exchanger 1.
• the tubes 2 are assembled to each other, parallel to each other, and allow the air circulation within them, generally in the direction of the length L of the exchanger.
• disrupters In the water flow channels 3 formed between the tubes 2 are mounted disrupters (not shown) of the water flow, this flow preferably being carried out countercurrently, that is to say in the opposite direction of the direction of flow of the air.
• the disrupters are in the form of plates which extend substantially over the entire lateral surface of the tubes 2 (referred to as the lateral surface of the surface of the tubes 2 defined by the dimensions parallel to the length L and to the width 1 of the exchanger 1) and throughout the space between successive tubes 2 to which they are brazed; disrupters are also provided between the end tubes 2 and the casing walls 4.
• the disrupters have a shape creating turbulence in the flow of water passing through them to promote heat exchange, in a known manner.
• the exchanger 1 comprises, at each of its ends (in the dimension of its length L), an air manifold 11, 11 '. On the right side (in Figure 1), it is the manifold 1 1 inlet air and, on the left side, the manifold 11 'air outlet.
• the ends of Air circulation tubes 2 are connected to the air collecting boxes 11, 11 ', the inner volume of the tubes 2 thus being in fluid communication with the interior volume of the manifolds 11, 11'; in other words, the tubes 2 open into the manifolds 1 1, 1 1 '.
• the manifolds 11, 11 ' are connected to pipes of an air circuit in which the exchanger 1 is mounted. The air is introduced into the tubes 2 via the inlet manifold.
• the structure of the exchanger will be described in more detail at its connection with the input box 11. The description that is made also applies to the exchanger at its output box 11 '.
• the input boxes 1 1 and output 11 ' are in this case similar and mounted symmetrically; of course, according to another embodiment, they may be different.
• the exchanger 1 comprises at its end a header plate 10, the function of which is to hold the tubes 2 in position, to guide the flow of air between the interior volume of the header 1 1 and the tubes 2 and 2. prevent the flow of water to the interior of the header 11, while preventing air and water flows from confluing; in other words, the header plate 10 seals between air and water.
• the collector plate 10 is often referred to by those skilled in the art by the term collector 10 and will be designated as such thereafter.
• the collector 10 is fixed to the casing 4, in this case by brazing, at a peripheral edge surface.
• the collector 10 has a peripheral skirt 10a having a side surface along which the collector 10 is brazed to the housing 4; this allows a simpler positioning between these two parts before brazing but also a better maintenance of one to the other, since the contact surface (and therefore brazing) is greater than if the collector 10 was brazed along. of a slice.
• the peripheral skirt 10a is formed by the edge of the collector 10 which is folded, in this case over its entire periphery.
• the skirt 10a therefore extends perpendicularly to the overall plane of the plate forming the collector 10, thus parallel to the direction of the length L of the exchanger 1.
• the skirt 10a can be folded in one direction (as in FIG. 3) or in the other (as on Figure 12), ie outward or inward of the exchanger 1, respectively; the folding side depends in particular on the size and the distance between the collector 10 and the fastening flange 5 described below.
• the collector 10 is in the form of a plate mounted transversely to the length L of the exchanger 1 to receive the ends of the tubes 2.
• each collar 13 forms a contact surface with the surface of the end of the tube 2 associated therewith, allowing them to be soldered to one another.
• the tubes 2, thus soldered to the flanges 13 bordering the orifices 12 of the collector 10, are fixed in position.
• the ends of the tubes 2 are thus separated from each other by the collars 13, the separation spaces between the successive tubes 2 define the channels 3 of flow of the water flow.
• the inlet ducts 9 and water outlet 8 in the exchanger 1 are here connected to the same face of the exchanger 1, in this case the small flap 16b of the second wall 16.
• each wall 15, 16 comprises, at the free end of its small flap 15b, 16b, a raised edge 15c, 16c, which is an edge 15c, 16c of attachment to the large flap 16a, 15a of the other wall 16, 15.
• This raised edge 15c, 16c extends perpendicularly to the small flap 15b, 16b, from a folding edge by which it is connected thereto.
• R crimping tabs are arranged to ensure the connection between the raised edges 15c, 16c and corresponding large flaps 16a, 15a. Brazing allows the joining of the surfaces in contact and held against each other.
• the flaps (15a, 15b), (16a, 16b) of the L-shaped walls 15, 16 form the four lateral faces of the exchanger 1 (referred to as lateral faces with respect to the direction of its length L).
• the collector 10 is fixed to the casing 4 by brazing. More specifically, the outer surface of its peripheral skirt 10a is brazed to the inner surface of the flaps (15a, 15b), (16a, 16b) of the walls 15, 16.
• each wall 15, 16 comprises, close to each of the free corners of its large flap 15a, 16a, a sealing portion P.
• Each sealing portion P is in the form of a portion protruding from the inner surface of the large flap 15a, 16a of the wall 15, 16, towards the tubes 2; this protruding portion P has the shape of a corner or a fin.
• Such projecting portion P may either be stamped on the wall 15, 16 after its manufacture, or may be directly formed during the manufacture of the wall 15, 16. After soldering the surfaces in contact, the seal is thus ensured. at this sealing portion P.
• embossed E have an additional advantage: insofar as they house the collectors 10 in the direction of the height h of the exchanger 1, they form a stop in the dimension of the length L of the exchanger 1; thus, they form axial retention means (in this direction L) of the collectors 10 and therefore of all the exchange elements 2, 2 'during brazing of all the elements of the exchanger 1.
• the exchanger 1 further comprises a flange 5 for fixing the manifold 11 to the casing 4. This flange 5 is attached to the casing 4. It is fixed (in this case by brazing) to the end of the casing 4, along from the periphery of the latter; it is therefore a peripheral flange 5, of generally rectangular shape, in this case formed of a single piece.
• the inner longitudinal wall 17 is folded outwards and in the direction of the exchanger 1, thus forming an inner transverse wall 18 and an intermediate longitudinal wall 19 forming with the inner longitudinal wall 17 a peripheral groove G 1 for accommodating the walls 15 a , 15b, 16a, 16b of the casing 4, thereby filling a function of fixing the housing 4.
• the inner transverse wall 18 forms a stop for the end of the walls 15a, 15b, 16a, 16b of the casing 4.
• the longitudinal wall intermediate 19 is folded outwards and in the reverse direction of the fold forming the peripheral groove G 1, thereby forming an outer transverse wall 20 and an outer longitudinal wall 21 forming with the intermediate longitudinal wall 19 a peripheral groove G 2 for housing a flange l ia of the end of the manifold January 1, thereby filling a function of fixing the manifold January 1; it is the end of the box 1 1 by which it is fixed to the flange 5; the rim l ia of the box 11 will be called fixing flange l ia.
• the flange comprises two peripheral grooves G1, G2 formed by walls 17, 18, 19, 20, 21 of the fixing flange 5, these grooves G1, G2 having a common wall 19.
• Each groove G1, G2 is provided for the maintenance of a part, in this case for the maintenance of the housing 4 and the collector 1 1, respectively.
• the housing 4 and the manifold 11 are each arranged so that their longitudinal end walls (along the length L of the exchanger 1) are inserted longitudinally in a peripheral groove G1, G2, by the transverse opening of this groove G1, G2.
• the grooves G1, G2 are oriented in opposite directions, that is to say that their openings are turned in two opposite directions along the direction of the length L of the exchanger 1.
• the exchanger 1 Because of their conformation with a common wall 19, they offer the exchanger 1 a great compactness and a good quality of maintaining parts 4, 1 1, either for brazing (for the housing 4) or for crimping (for the collector box) 1 1).
• the flange 5 comprises tabs 22 crimping the box 11 to the flange 5. These lugs 22 are arranged to be bent (folded) on the fixing flange 11a. The crimping tabs 22 are shown folded (that is to say in crimping position) on all of the figures. The box 11 is then crimped to the fastening flange 5.
• Maintaining the tubes 2 is provided by the manifold 10 and the holding of the header 1 1 is ensured (by crimping) by the flange 5 itself brazed to the casing 4, the manifold 10 and the flange 5 being both brazed to casing 4 but independently of one another; in this case, they are even without contact with each other.
• the forces to which the flange 5 is subjected because of its function of holding the manifold 11 are not transmitted directly to the collector 11 which is connected to the casing 4 and to the tubes 2.
• the flange 5 are not transmitted to the collector January 1, the latter may be formed so as to receive tubes 2 slender section and separated from each other by a small distance.
• the collector 11 it is possible to form the collector 11 by a traditional stamping process on a thin plate; in such a method, the collars 13 of the collector 11 are stamped then their bottom is punched to form the orifices, in a known manner.
• the plate making it possible to form the collector 10 having a thickness of approximately 1 mm, it is possible to form a collector 10 with orifices 12 of 100 mm by 7 or 8 mm approximately, with a inter-tube space of 2 to 3 mm. .
• the collars 13 may have a bulk (dimension parallel to the direction of the length L of the exchanger 1) substantially equal to 4mm; thus, by subtracting the thickness of the straps 14 (1mm), the collars 13 have a useful surface of contention of the end of the tubes 2 and brazing with them of about 3mm.
• the collector 10 being brazed directly to the casing 4, the radius of its corners is relatively large and the collector 10 is simpler to manufacture, this which is interesting because, because of the thickness of the collector 10, it is not always easy to conform it correctly.
• a further advantage is that industrially, the implementation of the invention can be done with collectors of the prior art, thin but weak, by simply adding a clamp 5.
• the positioning tabs 24 are arranged to be folded or deformed to maintain the flange 5 in position relative to the casing 4 by crimping. Their deformation also serves to guarantee their perfect soldering to the inner surfaces of the orifices 23 in which they are inserted, in order to fill the mounting clearance with these surfaces and to avoid any air leakage at this level, in other words to guarantee the tightness 23.
• the tabs 24 may be folded against the inner transverse wall 18, for example by bearing on the latter itself abutting on the end edge of the flaps 15a, 15b, 16a, 16b of the 4. They can also simply be deformed rather than crimped, insofar as a simple deformation would prevent them from moving relative to the flange 5.
• the function of these tabs 24 is to allow the positioning and maintenance of the flange 5 on the casing 4 during the manufacture of the exchanger 1 and in particular before and during the brazing of its various constituent elements. Thus, the manufacture of the exchanger 1 is facilitated.
• the tubes 2 are stacked and inserted into the orifices of the collectors 10 and the walls 15, 16 L of the casing 4 attached around them and held in position relative to each other. the other thanks to the crimping tabs R; it may be noted here that other holding means such as clinching means could be provided.
• the flanges 5 are attached to the ends of the casing 4, the positioning tabs 24 being inserted into the holes 23 provided for this purpose and deformed, folded or crimped to maintain the assembly.
• the whole can then be brazed and is for this purpose arranged in an oven, in a known manner.
• the surfaces intended to be soldered to the casing 4 (and in particular the outer surfaces of the skirts 10a of the collectors 10 and the surfaces of the grooves G1) have substantial dimensions, which allows quality soldering, the contact surfaces being important.
• Figures 3, 5, 6 and 8 to 1 1 show a particular characteristic of the exchanger 1: the corners of the flange 5 comprise a recessed portion 25 at the internal groove G1.
• a recessed portion 25 is provided to facilitate the manufacture of the flange 5 and promote the quality of its brazing on the casing 4, ensuring a sufficient brazing surface including in the corners.
• the flange 5 is in this case formed by stamping and it is difficult to bend the material in the corners, as is known.
• the amount of material in the corners is less important which allows them to be stamped so as to form an inner longitudinal wall which has, including in the corners, a sufficient length for soldering the housing 4 of quality.
• the shape of the housing and more particularly the shape of the corners of the ends of the housing 4 is adapted to the shape of the flange 5, as seen for example in Figure 5 (the ends of the housing 4 being intended to come into stop in the internal groove G1 of the flange 5).
• FIG. 12 shows a second embodiment of the flange 5 of the exchanger 1. Its description will be brief and the references used for the previous embodiment will be retained, only the differences between these embodiments being described.
• the shape of the skirt 10a of the collector 10 is slightly different: it can be seen that it is not folded towards the manifold 11 as was the case in the first embodiment. embodiment but is folded on the other side, towards the other end of the exchanger 1.
• the collector 10 has an outer surface of peripheral skirt at which it is brazed to the inner surface of the housing walls 4, in this case at a distance d from the free end 17a of the inner longitudinal wall 17 of the flange 5.
• the operation of the exchanger 1 (whatever its embodiment) is as follows (it is described briefly because well known to those skilled in the art). Air is supplied at the level of the air intake box 1 1, flows into the tubes 2 (this flow being disturbed by the fins 2 ') and leaves the exchanger 1 through the outlet box of air 1 1 '. Furthermore, the exchanger is supplied with water through the water inlet pipe 9, circulates in the water flow channels 3 (this circulation being disturbed by the disturbers) and leaves the exchanger 1 by the pipe 8 of water outlet. The air and water flows are against the direction in the direction of the length L of the exchanger 1; we speak of heat exchanger "against the current"; the efficiency of such an exchanger 1 is very good.
• the heat exchanger 1 has been described in relation to the air circulating in its tubes 2 and the water flowing between the tubes through the disrupters. It goes without saying that this could be reversed, that is to say water in the tubes and air between the tubes. Moreover, it could be air in both cases or water in both cases, or other fluids.

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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)

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• 2009
  • 2009-12-18 FR FR0906150A patent/FR2954481B1/fr not_active Expired - Fee Related
• 2010
  • 2010-12-02 CN CN201080064340.0A patent/CN102782435B/zh not_active Expired - Fee Related
  • 2010-12-02 WO PCT/EP2010/068769 patent/WO2011073038A1/fr active Application Filing
  • 2010-12-02 EP EP10787108.9A patent/EP2513586B1/de active Active
  • 2010-12-02 PL PL10787108T patent/PL2513586T3/pl unknown
  • 2010-12-02 JP JP2012543591A patent/JP5856068B2/ja not_active Expired - Fee Related
  • 2010-12-02 US US13/516,787 patent/US9488417B2/en active Active

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