EP3308096B1 - Wärmetauscher für ein kraftfahrzeug - Google Patents

Wärmetauscher für ein kraftfahrzeug Download PDF

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Publication number
EP3308096B1
EP3308096B1 EP16728027.0A EP16728027A EP3308096B1 EP 3308096 B1 EP3308096 B1 EP 3308096B1 EP 16728027 A EP16728027 A EP 16728027A EP 3308096 B1 EP3308096 B1 EP 3308096B1
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EP
European Patent Office
Prior art keywords
circuit
heat exchanger
channels
channel
multichannel
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EP16728027.0A
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English (en)
French (fr)
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EP3308096A1 (de
Inventor
Dawid Szostek
Grzegorz Romanski
Andrzej Fudala
Grzegorz ZELEK
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Valeo Systemes Thermiques SAS
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Valeo Systemes Thermiques SAS
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Publication of EP3308096A1 publication Critical patent/EP3308096A1/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • 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
    • F28D7/0008—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 for one medium being in heat conductive contact with the conduits for the other medium
    • F28D7/0025—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 for one medium being in heat conductive contact with the conduits for the other medium the conduits for one medium or the conduits for both media being flat tubes or arrays of tubes
    • 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
    • F28D1/03—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 plate-like or laminated conduits
    • F28D1/0308—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other
    • F28D1/0325—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another
    • F28D1/0333—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another the plates having integrated connecting members
    • 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
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • 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
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
    • F28F3/046—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being linear, e.g. corrugations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/048—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of ribs integral with the element or local variations in thickness of the element, e.g. grooves, microchannels

Definitions

  • the field of the present invention is that of heat exchangers for motor vehicles, and the present invention applies more particularly, but not exclusively, to heat exchangers used in the air conditioning circuits of these vehicles.
  • WO 2012/132924 A1 describes a heat exchanger according to the preamble of claim 1.
  • the refrigerant currently most used in this type of exchanger is a fluorinated compound known under the name R134a.
  • This coolant is usually kept in a sealed closed circuit of the vehicle. In certain situations, however, this fluid can escape into the atmosphere: this is the case, for example, when the vehicle is involved in an accident, or when the vehicle is at the end of its life, or even when the refrigerant circuit has a leak.
  • this refrigerant is known to contribute negatively to the greenhouse effect on the planet.
  • the aim of the present invention is to provide a simple, effective solution. and reliable to achieve an efficient heat exchange between a heat transfer fluid and a supercritical refrigerant fluid such as carbon dioxide, a solution which is also easy to assemble before the welding / brazing operations of the heat exchanger.
  • the subject of the invention is a heat exchanger according to claim 1.
  • the first circuit comprises several channels and the second circuit comprises several tubes, and the tubes and channels are stacked alternately on top of each other.
  • the multichannel tube is an extruded tube of low height, of the order of a few millimeters at most, in particular between 1 and 3 millimeters.
  • the multichannel tube comprises a plurality of walls, and these walls define a set of channels which extend from one longitudinal end of said multichannel tube to the other.
  • the channels thus delimited are straight and aligned one beside the other.
  • the two plates forming a channel of the first circuit of the heat exchanger are assembled to one another at least by their periphery, in particular by a peripheral edge of these plates.
  • the first circuit comprising several channels of this type, two plates forming a first channel of the first circuit and two plates forming a second channel of said first circuit communicate with each other by collars fitted into one another and assembled in a sealed manner. Internal channel volume adjacent sites is thus placed in a fluid relationship.
  • Each plate entering into the formation of a channel of the first circuit comprises two orifices placed at each of the longitudinal ends of the channel and each delimited by a collar which extends, once said plate is assembled with a similar plate to form said channel, towards outside said channel, that is to say towards the outside of the internal volume delimited by two plates forming a channel.
  • the plates which form, by assembly, the first circuit also comprise one or more reinforcements which delimit circulation passages for the heat transfer fluid, these reinforcements being located in the central portion of the plate called bowl.
  • the contact between the elements forming the first circuit and the elements forming the second circuit is made between at least one flat portion of a plate forming part of a channel of the first circuit and at least a part of an outer face of a multichannel tube forming the second circuit.
  • a direction in which extends at least one channel forming the second circuit of said heat exchanger and a direction passing through orifices formed at each longitudinal end of a plate are substantially perpendicular to each other.
  • the set, or the series, of first orifices and the set, or the series, of second orifices respectively form, once the set of channels are assembled in a sealed manner by said collars, a first tubular passage and a second tubular passage which interconnect all the internal volumes of the channels.
  • each plate entering the formation of a channel of the first circuit comprises at least one rib which defines at least one passage for circulation of the heat transfer fluid.
  • a rib also has a function of mechanical reinforcement of the channel.
  • each rib has substantially the shape of a "V", thus forming a chevron.
  • each end of the multichannel tubes protrudes from edges located at the periphery of the plates constituting the channels.
  • Multichannel tubes can thus be connected to manifolds without interfering with the plates.
  • each plate entering into the formation of a channel of the first circuit comprises at least one planar part in contact with an outer face of a multichannel tube. This guarantees the transfer of calories from the liquid heat transfer fluid to the supercritical coolant, or in the opposite direction.
  • the invention also relates to a heat transfer fluid circuit or a supercritical refrigerant fluid circuit for a motor vehicle, characterized in that one and / or the other of these circuits comprises a heat exchanger as detailed above.
  • the figure 1 shows an external perspective view of two plates 1 entering the formation of a channel A of the first circuit of a heat exchanger 100 according to the invention, capable of being traversed by a heat transfer fluid such as a glycol liquid, for example . It should be understood here that a channel A of this first circuit is formed by the assembly of these two plates 1 as represented by the figure 1 .
  • Each plate 1 is a thin plate, advantageously produced by stamping a metallic material so as to form a cup 10 (visible on the figure 2 ) of shallow depth delimited by a bottom 12 and, in periphery, by an edge 11.
  • the thickness of each plate 1 is advantageously of the order of a few tenths of a millimeter, typically, but in a non-limiting manner, 3/10 th to 7/10 th of a millimeter.
  • the depth of the bowl 10 is advantageously of the order of a few tenths of a millimeter to about 1 millimeter.
  • each plate 1 has substantially the general shape of a hexagon of which two parallel sides 1a and 1b are longer than the other sides, the lengths of said other sides being substantially equal between they.
  • Each plate 1 is also pierced with two orifices, hereinafter referred to as the first orifice 13a and second orifice 13b.
  • the orifices 13a and 13b have an oblong shape and are placed substantially at each end of the plate 1, substantially spaced apart the length of the parallel sides 1a and 1b. They are also placed in such a way that the plate 1 has at least one plane of symmetry P.
  • the plane of symmetry P is substantially perpendicular to the parallel sides of greater length 1a and 1b, and passes through the middle of these.
  • each plate 1 may also have a plurality of ribs 14 each of which forms, within the bowl 10, a projection whose height is slightly less than the depth of the bowl 10.
  • the ribs 14 are arranged symmetrically with respect to the previously mentioned plane of symmetry P, and they each have the shape of a "V". In other words, these ribs 14 each form a chevron. By their shape, these ribs 14 have a role of mechanical reinforcement and stiffening of each plate 1. They also have another role which will be specified later. Between the ribs 14, the bottom 12 of each plate 1 is substantially flat.
  • a channel A of the first circuit of the heat exchanger according to the invention intended to be traversed by the liquid heat transfer fluid two plates 1 as described above are assembled by their edge 11. More precisely, the blanks 110 of the two plates 1 are contiguous and brazed together, so that the two cups 10 of each plate 1 together form an internal volume V in which the liquid heat transfer fluid is required to circulate. Given the depth of each bowl 10, the height of a channel A is typically, but not limited to, of the order of 1 to 3 millimeters. However, it emerges from the description of the plates 1 above that the internal volume V delimited by the assembly of the latter communicates with the outside through the orifices 13a, 13b carried by them.
  • the first circuit of the heat exchanger according to the invention consists of a stack or succession of several channels as described above.
  • the figure 2 shows a detail of the assembly of two immediately adjacent plates constituting two channels forming the first circuit. It appears on the figure 2 that, during the assembly of the two adjacent channels A, the orifices 13a formed on the plates 1 are located opposite one another, and that their collars 13c, which then extend towards one another towards the other, cooperate to form a passage portion making it possible to make the internal volumes V formed within the adjacent channels communicate with each other. When these channels are assembled together, the collars 13c, brazed together, therefore form a sealed passage between the internal volumes V of said channels each delimited by a pair of plates 1.
  • Each plate 1 having a first orifice 13a and a second orifice 13b at each of its ends, a second tubular passage 15b is formed in the same way as the first tubular passage 15a, as shown in FIG. figure 3 , that is to say through the series of second orifices 13b.
  • These tubular passages 15a and 15b form, with the succession of the internal volumes V of the channels A assembled to form the first circuit of the heat exchanger 100 according to the invention, the first heat transfer fluid circuit.
  • the figure 3 also illustrates the presence of a plurality of multichannel tubes B interposed between each channels A of the first circuit.
  • the multichannel tubes B are connected in a sealed manner to one or more inlet 7a and outlet 7b sleeves, both connected to a single flange 50.
  • a collector box 51 consisting of a stack of components.
  • One of these components is a first plate 5 on one side of which the sleeves input 7a and output 7b are directly secured.
  • Another component is formed by an intermediate plate 52 sandwiched between the first plate 5 and a collector plate 6. The latter comprises folded longitudinal edges to grip the first plate and thus maintain the stack of components.
  • a multichannel tube B which is advantageously an extruded tube, is in the form of a rigid plate 20 of generally substantially rectangular shape with a large side L , of small side l, and of thickness d.
  • this plate comprises, in its thickness, a set of walls 22, for example parallel, of width h1 which extend, in a direction D1 parallel to that of the large side L of the multichannel tube B, of a longitudinal end to the other of the plate 20.
  • the walls 22 form bridges of material between two large outer faces 33 and 34 defined by the large side L and the small side l.
  • the walls 22 define between them, in the direction D1, a set of channels 21 aligned parallel to each other which extend, also in the direction D1, from one longitudinal end of the plate 20 to the other, so as to open at both ends of it.
  • each of the channels 21 has a substantially oblong shape, the height H of which is greater than the width h and slightly less than the thickness d of the rigid plate 20.
  • the channels 21 are therefore spaced from each other by the width h1 of each wall 22, and each of these walls acts as a mechanical reinforcement for the assembly of the multichannel tube B, the channels 21 being aligned side by side.
  • the figure 6 illustrates more precisely the assembly between two channels A of the first circuit of the heat exchanger 100 according to the invention and a tube multichannel B of the second circuit of this heat exchanger. It appears in this figure that the multichannel tube B is interposed between the two channels A, and that the multichannel tube B protrudes, at each of its ends, from the longitudinal edges 1a, 1b of greater length of each of the channels A. More precisely , and as mentioned above, the outer wall of the bowl 10 formed in each plate 1 entering the formation of a channel A is, between the ribs 14 that this plate carries, substantially flat. According to the invention, at least a portion 35 of these flat parts is in direct contact, in particular by brazing, with an outer face 33 or 34 of the multichannel tube B immediately adjacent.
  • the dimensions of the collars 13c of the adjacent channels A and the thickness d of each multichannel tube B are defined in such a way that the insertion of these tubes between two adjacent channels A is possible while leaving a small space such that it is then possible to make direct contact by simple welding or brazing between multichannel tube B of the second circuit and plates 1 of the channels of the first circuit.
  • the thickness d of each plate 20 is of the order of 1 to 3 millimeters, thus corresponding to the space which separates two channels A immediately adjacent to the first circuit.
  • the first and second circuits of a heat exchanger 100 are formed by a succession of channels A and multichannel tubes B interposed between two adjacent channels, the tubular passages 15a and 15b defining an inlet and an outlet of the heat transfer fluid in the first circuit and thus a general direction of circulation of said fluid in said first circuit.
  • the supercritical refrigerant circulates in the channels 21 of the multichannel tubes B in the second circuit.
  • an inlet cheek 3 is combined with a first plate 1 so as to define an inlet zone for the coolant in the first circuit.
  • the entry cheek 3 has a thickness greater than the thickness of a plate 1 and thus forms a reinforcement mechanical for the heat exchanger.
  • the inlet cheek 3 receives an inlet pipe 31 also delimiting one of the tubular passages 15a or 15b.
  • the heat exchanger 100 also comprises an outlet cheek 4 assembled in a sealed manner to a plate 1.
  • This outlet cheek 4 supports an outlet pipe 41 delimiting the second tubular passage 15b.
  • the heat transfer fluid therefore enters the first circuit through the inlet pipe 31, circulates in the first tubular passage 15, then is distributed in each channels A, to be collected by the second tubular passage 15b, and finally out of the exchanger heat 100 through the outlet pipe 41.
  • the inlet and outlet of the heat transfer fluid circuit are each located at one end of the heat exchanger 100 according to the invention, in the direction of stacking of the assembly.
  • multichannel ducts-tubes are each located at one end of the heat exchanger 100 according to the invention, in the direction of stacking of the assembly.
  • the multichannel tubes B are connected, at each of their ends, to a manifold 51 as described in connection with figure 3 above. Only one of two manifolds is connected to a set of inlet and outlet sleeves 7a and 7b, which ensure the circulation of the supercritical refrigerant fluid within the second circuit of the heat exchanger according to the invention. It will thus be understood that the inlet and outlet sleeves 7a and 7b of the second circuit are located on the same side of the heat exchanger, thus defining a "U" configuration of this second circuit.
  • the collector box devoid of inlet and outlet sleeves 7a and 7b, called the recovery collector box 53 ensures the recovery of the supercritical refrigerant fluid arriving through part of the channels 21 of the multichannel tubes B. This collector box then directs this fluid from so that what enters the other part of the channels 21 to move towards the manifold 51, called the inlet manifold.
  • a general direction D2 of circulation of the heat transfer fluid in the channels A constituting the first circuit is defined by a straight line passing through the first orifice 13a and the second orifice 13b of the same plate 1.
  • This direction D2 is perpendicular, or substantially perpendicular, to the general direction D1 of circulation of the supercritical refrigerant fluid in the multichannel tubes B , defined by the orientation of the channels 21 of the multichannel tubes B.
  • at least one channel A of the first circuit and at least one multichannel tube B of the second circuit are arranged in the heat exchanger 100 so as to that their respective fluid path is perpendicular, or substantially perpendicular.
  • the process for producing a heat exchanger 100 according to the invention can be as follows: stacking the channels A and multichannel tubes B so as to form a heat exchange body, respectively forming the first and the second fluid circuit, pre-assembly of the manifolds 51, pre-assembly of the inlet 31 and outlet 41 pipes on the stack of multichannel tubes B, pre-assembly of the inlet 7a and outlet 7 sleeves on the stack of channels A , then brazing or welding of the assembly in a suitable furnace.
  • the invention therefore makes it possible to produce a simple one-piece exchanger in which the elements in which the supercritical refrigerant circulates are designed to withstand the high pressures necessary for the implementation of the latter, while offering high performance of heat exchange.
  • the manufacturing operations of the various elements of the heat exchanger circuits such as the stamping of the plates forming the channels of the heat transfer fluid circuit, the extrusion of the multichannel tubes, the brazing of the assembled elements, the pre-assembly steps and the final brazing step are, moreover, simple, and cost under control for mass production.
  • Such a heat exchanger 100 therefore remains economically viable for mass production, as is notably the case in the world of mass-produced automobiles.
  • such an exchanger is compact, which facilitates its integration into a vehicle, and allows its installation on a wide variety of vehicles.
  • the invention cannot be reduced to the means and configurations described and illustrated.
  • the inlet and outlet sleeves 7a and 7b of the second circuit of the heat exchanger 100 according to the invention are located on the same side of this exchanger, defining circulation of the refrigerant fluid in a "U", such a configuration is not exclusive, and the inlet and outlet sleeves of the second circuit can be arranged to define an "I" configuration without this harming the invention .
  • an inlet sleeve 7a is secured to a first manifold 51
  • an outlet sleeve 7b is secured to a second manifold 53.
  • any other respective configuration of the inlet and outlet sleeves or pipes of the first or of the second circuit can also be implemented, as long as it contributes to optimizing the circulation of the coolant and supercritical refrigerant fluids and, thus, the efficiency of the heat exchange.
  • any general shape other than hexagonal can be given to the plates 1 entering into the formation of the channels A, insofar as the specificities of these plates described here with regard to the invention are respected.

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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)

Claims (14)

  1. Wärmetauscher (100), welcher einen ersten Kreislauf, der dazu bestimmt ist, von einem flüssigen Wärmeträgerfluid durchströmt zu werden, und einen zweiten Kreislauf, der dazu bestimmt ist, von einem überkritischen Kältemittel durchströmt zu werden, umfasst, dadurch gekennzeichnet, dass der erste Kreislauf von wenigstens einem Kanal (A) gebildet wird, der von wenigstens zwei Platten (1) begrenzt wird, und dadurch, dass der zweite Kreislauf von wenigstens einem Mehrkanalrohr (B) gebildet wird, wobei der wenigstens eine Kanal (A) sich in Kontakt mit dem wenigstens einen Mehrkanalrohr (B) befindet, wobei jede Platte (1), die an der Bildung eines Kanals (A) des ersten Kreislaufs beteiligt ist, zwei Öffnungen (13a, 13b) aufweist, die jeweils an einem ihrer Längsenden angeordnet sind; dadurch gekennzeichnet, dass jede der Öffnungen von einem Kragen (13c) begrenzt wird, welcher sich, nachdem die Platte mit einer ähnlichen Platte zusammengebaut worden ist, um den Kanal (A) zu bilden, zur Außenseite des Kanals (A) hin erstreckt, wobei die Kanäle (A) des ersten Kreislaufs über die durch Einstecken miteinander verbundenen Kragen (13c) miteinander in Verbindung stehen.
  2. Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, dass der erste Kreislauf mehrere Kanäle (A) umfasst, dadurch, dass der zweite Kreislauf mehrere Mehrkanalrohre (B) umfasst, und dadurch, dass die Mehrkanalrohre (B) und die Kanäle (A) abwechselnd übereinandergestapelt sind.
  3. Wärmetauscher nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass jedes Mehrkanalrohr (B) ein extrudiertes Rohr ist, dessen Dicke (d) zwischen 1 und 3 Millimetern liegt.
  4. Wärmetauscher nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass jedes Mehrkanalrohr (B) mehrere Wände (22) umfasst, welche einen Satz von Kanälen (21) voneinander abgrenzen, welche sich von einem Ende des Mehrkanalrohres (B) zum anderen erstrecken.
  5. Wärmetauscher nach Anspruch 4, dadurch gekennzeichnet, dass sich die Wände (22) und Kanäle (21) jedes Mehrkanalrohres (B) in einer allgemeinen Richtung (D1) gerade und parallel ausgerichtet nebeneinander erstrecken.
  6. Wärmetauscher nach Anspruch 5, dadurch gekennzeichnet, dass die Richtung (D1), in der sich wenigstens ein den zweiten Kreislauf des Wärmetauschers bildender Kanal (21) erstreckt, und eine Richtung (D2), die durch an jedem Längsende einer Platte (1) ausgebildete Öffnungen (13a, 13b) verläuft, im Wesentlichen zueinander senkrecht sind.
  7. Wärmetauscher nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass zwei Platten (1), die einen Kanal (A) des ersten Kreislaufs bilden, wenigstens über ihren Rand (11) dicht miteinander verbunden sind.
  8. Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, dass mehrere erste Öffnungen (13a) und mehrere zweite Öffnungen (13b), nachdem der Satz der Kanäle (A) über die Kragen (13c) dicht verbunden worden ist, einen ersten rohrförmigen Durchgang (15a) bzw. einen zweiten rohrförmigen Durchgang (15b) bilden, welche die Gesamtheit der Innenvolumina (V) der Kanäle (A) miteinander verbinden.
  9. Wärmetauscher nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass jede Platte (1), die an der Bildung eines Kanals (A) des ersten Kreislaufs beteiligt ist, wenigstens eine Rippe (14) umfasst, welche wenigstens einen Strömungsdurchgang des Wärmeträgerfluids begrenzt.
  10. Wärmetauscher nach Anspruch 9, dadurch gekennzeichnet, dass jede Rippe (14) im Wesentlichen die Form eines "V" hat.
  11. Wärmetauscher nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass in dem ineinander geschachtelten Stapel der Kanäle (A) und Mehrkanalrohre (B) jedes Ende der Mehrkanalrohre (B) über Ränder (11) übersteht, die sich am Umfang der Platten (1) befinden, die Bestandteil der Kanäle (A) sind.
  12. Wärmetauscher nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass jede Platte (1), die an der Bildung eines Kanals (A) des ersten Kreislaufs des Wärmetauschers beteiligt ist, wenigstens einen ebenen Teil (35) umfasst, der sich mit einer Außenseite (33) eines Mehrkanalrohres (B) in Kontakt befindet.
  13. Wärmeträgerfluidkreislauf für ein Kraftfahrzeug, dadurch gekennzeichnet, dass er einen Wärmetauscher (100) nach einem der Ansprüche 1 bis 12 umfasst.
  14. Kreislauf eines überkritischen Kältemittels für ein Kraftfahrzeug, dadurch gekennzeichnet, dass er einen Wärmetauscher (100) nach einem der Ansprüche 1 bis 12 umfasst.
EP16728027.0A 2015-06-12 2016-06-09 Wärmetauscher für ein kraftfahrzeug Active EP3308096B1 (de)

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FR1555347A FR3037387B1 (fr) 2015-06-12 2015-06-12 Echangeur de chaleur pour vehicule automobile
PCT/EP2016/063188 WO2016198536A1 (fr) 2015-06-12 2016-06-09 Echangeur de chaleur pour vehicule automobile

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FR3084698B1 (fr) * 2018-07-31 2020-07-24 Safran Aircraft Engines Echangeur thermique pour turbomachine

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JP2007017133A (ja) * 2005-07-11 2007-01-25 Denso Corp 熱交換器
ES2349909B1 (es) * 2008-10-21 2011-09-28 Valeo Termico, S.A. Intercambiador de calor de placas apiladas.
JP5206830B2 (ja) * 2011-03-25 2013-06-12 ダイキン工業株式会社 熱交換器
DE102012224353A1 (de) * 2012-12-21 2014-06-26 Behr Gmbh & Co. Kg Wärmeübertrager

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WO2016198536A1 (fr) 2016-12-15
EP3308096A1 (de) 2018-04-18
FR3037387B1 (fr) 2019-07-19

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