[go: up one dir, main page]

EP1399702B1 - Improved performance heat exchanger, in particular an evaporator - Google Patents

Improved performance heat exchanger, in particular an evaporator Download PDF

Info

Publication number
EP1399702B1
EP1399702B1 EP02764927A EP02764927A EP1399702B1 EP 1399702 B1 EP1399702 B1 EP 1399702B1 EP 02764927 A EP02764927 A EP 02764927A EP 02764927 A EP02764927 A EP 02764927A EP 1399702 B1 EP1399702 B1 EP 1399702B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
longitudinal
pockets
exchanger according
longitudinal tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02764927A
Other languages
German (de)
French (fr)
Other versions
EP1399702A1 (en
Inventor
Frédéric Bousquet
Sylvain Moreau
Jean-Michel Bouzon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Climatisation SA
Original Assignee
Valeo Climatisation SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Climatisation SA filed Critical Valeo Climatisation SA
Publication of EP1399702A1 publication Critical patent/EP1399702A1/en
Application granted granted Critical
Publication of EP1399702B1 publication Critical patent/EP1399702B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/027—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes
    • 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
    • F28D1/0341—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 with U-flow or serpentine-flow inside the conduits

Definitions

  • the invention relates to heat exchangers, in particular for motor vehicles.
  • a heat exchanger for the exchange of heat between a first fluid and a second fluid, comprising a stack of pouches mutually aligned in a longitudinal direction and having two collector boxes mutually juxtaposed in one direction lateral, each formed by the alignment, in the direction longitudinal, of entrance or exit rooms belonging to respectively to the different pockets, the boxes collectors as a whole in at least three connecting lines, and wherein the first fluid is injected into an upstream connection pipe by a tubing longitudinal running through an end face of the exchanger of heat away from the upstream connection line and at least another connecting line formed by other pockets.
  • the pockets define a route for the first fluid between an upstream link line adjacent to a first longitudinal end of the stack and a pipe of downstream link adjacent to the second longitudinal end of stacking, passing alternately from a conduct of link belonging to one of the collector boxes to a link line belonging to the other collector box, through U-shaped paths each of which connects between they enter the rooms of entry and exit of the same pocket.
  • the upstream and downstream connection lines are connected to inlet and outlet passages provided for at one of said longitudinal ends, one directly and one through the aforementioned longitudinal tubing. This tubing passes through the openings in the pipe or pipes interposed connection between this same end and said other liaison line.
  • Such heat exchangers are commonly used as evaporators in air-conditioning systems the passenger compartment of the vehicles.
  • the pockets are each formed of two sheet metal plates shaped cups, whose concavities are turned towards each other and which are mutually connected to each other waterproof way to their periphery, the entrance and output being delineated by regions of the cuvettes more great depth that the remaining regions, so as to to reserve between two pockets, next to said remaining regions, an interval for the passage of the second fluid in the lateral direction, and said openings being in the bottoms of the cuvettes, which are in contact mutual tight around the openings.
  • the two bowls of each pocket are also connected to waterproof way in a median area of their width and on a significant fraction of their length from a first edge end, the two branches of said U-shaped path extending from both sides of said median zone, as well as regions of greater depth of the bowls arranged at near said first end edge.
  • tubing longitudinal also called pipette
  • pipette has a section circular cross-section, as taught by the EP publication 0,911,595.
  • One of the aims of the invention is to further improve the operating characteristics of these exchangers.
  • the invention proposes for this purpose a heat exchanger of the type defined in the introduction, in which the longitudinal tubing has a generally oblong cross-section whose largest dimension is parallel to the largest size of the pockets.
  • this longitudinal tubing due its oblong cross-section, improves the passage of the first fluid and may, in addition, be positioned so as to do not partially close the rooms defined in the pockets.
  • the longitudinal tubing adapts better to the shape of the boxes in the case where the plates have a narrow width (in the lateral direction), typically less than 60 mm.
  • the heat exchanger shown in the drawings is a evaporator for an air conditioning device of the passenger compartment of a motor vehicle. It includes a multiplicity of pockets 1 mutually stacked in a longitudinal direction substantially horizontal, and formed each of two plate plates stamped cup-shaped 2 and 3. These are identical to each other and they have their concavities turned towards each other, either respectively to second and first ends longitudinal 5, 4 of the stack.
  • Each bowl has a peripheral edge 6 located in a vertical plane, and the edges 6 of the two bowls forming a pocket are mutually assembled in fluid-tight manner by brazing, to delimit the interior volume of the pouch.
  • Each bowl has in addition, at its upper part, two regions 7 deeper than the region remaining 8, the latter occupying most of the height of the bowl, below the regions 7 ( Figure 2). These two regions of greater depth of each bowl, juxtaposed from the left to the right of the figures, define in each pocket an entrance chamber and a outlet chamber for a first fluid, here the fluid refrigerant.
  • each pocket is separated from each other by a sealed junction zone 9 between the two cuvettes at the half-width of the cover, this junction area connecting to the edge 6 at the end top 10 of the wallet and extending down to the vicinity of the lower end of the define in it, in relation to the regions 8 of the cups, a U-shaped path for the fluid between the chamber inlet and outlet chamber ( Figure 2).
  • each bowl is crossed, in each of regions 7 of greater depth, through an opening 11 and funds turned towards each other from a bowl 2 and a 3 adjacent bowl are mutually connected tightly around the openings, by brazing.
  • the alignment of the entry / exit chambers located on the left of the figures forms a collector box 16, and the alignment of the input / output chambers on the side right forms a collector box 17 ( Figure 1).
  • the box collector 16 is subdivided by a transverse partition 18 in a connecting pipe 12 extending from this partition to the end 4 of the stack and a connecting pipe 14 extending from the bulkhead to the end 5.
  • a partition transverse 19, farther from the end 4 than the partition 18, separates the collector box 17 into a connection line 13 adjacent to the end 4 and a connecting line 15 adjacent to the end 5.
  • An end plate 20 is brazed at the bottom of the bowl 3 located at the end 4 of the stack, while an end box 21 (see also FIGS.
  • connection line 12 upstream connection line
  • the end box 21 has an opening 23 which opens into the connecting pipe 15, so as to communicate with the downstream part of the circuit.
  • the refrigerant enters the connecting pipe 12 longitudinal tubing 22, then passes into the link line 13, taking the paths in parallel in U of a first group of pockets. He is then transferred to the connection line 14, via the paths in U of a second group of pockets, then to the conduct of link 15, via the U-paths of a third and last group of pockets.
  • the fluid finally leaves the evaporator through the outlet opening 23.
  • the fluid receives from the heat of a flow of air flowing through the evaporator horizontally from right to left, according to the arrow F1, through the intervals that separate the pockets next to the regions 8 of the cuvettes.
  • the tubing 22 has a section transverse oblong shape, in the oval example ( Figure 3), whose largest dimension is parallel to the larger size of the pockets. It means that the most large dimension of the oval section is vertical if one consider Figure 1.
  • the tubing 22 is offset with respect to the center openings 11 of the bowls which define the box
  • the tubing is shifted outward, here to the left, that is to say towards the downstream relative to the flow of air F1.
  • the outline of each opening 11 has an oval shape and is composed of two horizontal line segments 30 and two arcs of circle 31 whose concavities are turned towards each other and which connect to the segments 30 (Figure 1).
  • the tubing 22 comes to rest on one of the two arcs of circle 31 (the one located to the left) on the edge of the openings it crosses, and she is brazed to this edge the entire length of the circular arc 31 located on the left. So, the biggest dimension of the cross section of the tubing 22 is perpendicular to the largest dimension of the opening 11 ( Figure 1).
  • the tubing longitudinal 22 is secured to the end box 21 which just cap the end face 5 of the evaporator.
  • This end box 21 has a first cavity 32 provided with an opening 33 of oval form in which opens the longitudinal tubing 22.
  • the longitudinal tubing 22 is crimped at the edges of this opening 33.
  • the box end 21 comprises a second cavity 34 in which is formed the opening 23 above, which opens into the downstream connection line 15.
  • the end box 21 here has a double bowl shape similar to that of a plate 2.
  • This end box 21 receives a shaped plate 35 ( Figures 2 and 4) which defines an inlet tip 36 communicating with the cavity 32 and therefore with the tubing 22, and a nozzle of output 37 communicating with the second cavity 34, so with the outlet opening 23.
  • a shaped plate 35 Figures 2 and 4
  • an inlet tip 36 communicating with the cavity 32 and therefore with the tubing 22, and a nozzle of output 37 communicating with the second cavity 34, so with the outlet opening 23.
  • the longitudinal tubing is capable of being soldered to edges of an opening 11 which communicates the conduct of upstream link 12 with an adjacent link line 14, which is traversed by this longitudinal tubular.
  • This adjacent connecting pipe 14 extends to the face end 5 of the heat exchanger.
  • longitudinal tubing 22 is brazed on the edge outer openings 11 which communicate the pockets two by two.
  • the directions longitudinal and lateral of the exchanger are substantially horizontally, while the collector boxes 16 and 17 are arranged at the top of the exchanger ( Figure 1).
  • the passage of the fluid is thus improved. by limiting the internal pressure drop and increasing the performance.
  • the longitudinal tubing thanks to its oblong shape, can be positioned so as not to partially close the channels and it adapts better to the shape of the boxes.
  • the arrangement according to the invention also improves the homogeneity of heat exchange in the volume of the evaporator, and therefore the homogeneity of the temperature distribution within the outgoing airflow of this one, with attenuation of the phenomena of hot spots and cold spots.
  • brazing of the longitudinal tubing at the edges openings causes a stiffening and a reduction of the noise of operation.
  • the cross section of the tubing can have an oblong shape different from an oval shape, for an elliptical, rectangular shape, etc.
  • the invention finds particular application to the production of evaporators for air-conditioning devices vehicles.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)

Abstract

A heat exchanger for exchange of heat between a first fluid and a second fluid comprises a stack of pockets ( 1 ) mutually aligned in a longitudinal direction and having two header boxes ( 16, 17 ) that are mutually juxtaposed in a lateral direction. The first fluid is injected into an upstream connecting channel ( 12 ) by a longitudinal nozzle ( 22 ) passing through a heat exchanger end face ( 5 ) remote from the upstream connecting channel, and at least one other connecting channel ( 14 ). This longitudinal nozzle has a cross section of oblong general shape, whose greatest dimension is parallel to the greatest dimension of the pockets. The heat exchanger may be produced particularly in the form of an evaporator for an air-conditioning device for the passenger compartment of a vehicle.

Description

L'invention se rapporte aux échangeurs de chaleur, notamment pour véhicules automobiles.The invention relates to heat exchangers, in particular for motor vehicles.

Elle concerne plus particulièrement un échangeur de chaleur pour l'échange de chaleur entre un premier fluide et un second fluide, comprenant un empilement de pochettes mutuellement alignées dans une direction longitudinale et présentant deux boítes collectrices mutuellement juxtaposées dans une direction latérale, formées chacune par l'alignement, dans la direction longitudinale, de chambres d'entrée ou de sortie appartenant respectivement aux différentes pochettes, les boítes collectrices étant subdivisées dans leur ensemble en au moins trois conduites de liaison, et dans lequel le premier fluide est injecté dans une conduite de liaison amont par une tubulure longitudinale qui traverse une face d'extrémité de l'échangeur de chaleur, éloignée de la conduite de liaison amont et au moins une autre conduite de liaison formée par d'autres pochettes.It relates more particularly to a heat exchanger for the exchange of heat between a first fluid and a second fluid, comprising a stack of pouches mutually aligned in a longitudinal direction and having two collector boxes mutually juxtaposed in one direction lateral, each formed by the alignment, in the direction longitudinal, of entrance or exit rooms belonging to respectively to the different pockets, the boxes collectors as a whole in at least three connecting lines, and wherein the first fluid is injected into an upstream connection pipe by a tubing longitudinal running through an end face of the exchanger of heat away from the upstream connection line and at least another connecting line formed by other pockets.

On connaít déjà, en particulier d'après EP 0 911 595, un échangeur de chaleur de ce type, dans lequel les conduites de liaison qui appartiennent à une même boíte collectrice se succèdent dans la direction longitudinale et ne communiquent pas directement entre elles, tandis que dans chaque conduite de liaison les chambres d'entrée ou de sortie communiquent mutuellement par des ouvertures ménagées dans les parois des pochettes.Already known, in particular according to EP 0 911 595, an exchanger heat of this type, in which the link which belong to the same collector box succeed in the longitudinal direction and do not communicate not directly between them, while in each linking the entrance or exit rooms communicate mutually by openings in the walls of pockets.

Les pochettes définissent un parcours pour le premier fluide entre une conduite de liaison amont adjacente à une première extrémité longitudinale de l'empilement et une conduite de liaison aval adjacente à la seconde extrémité longitudinale de l'empilement, en passant alternativement d'une conduite de liaison appartenant à l'une des boítes collectrices à une conduite de liaison appartenant à l'autre boíte collectrice, par l'intermédiaire de trajets en U dont chacun relie entre elles les chambres d'entrée et de sortie d'une même pochette. Les conduites de liaison amont et aval sont reliées à des passages d'entrée et de sortie prévus à l'une desdites extrémités longitudinales, l'une directement et l'autre par l'intermédiaire de la tubulure longitudinale précitée. Cette tubulure traverse les ouvertures de la ou des conduites de liaison interposées entre cette même extrémité et ladite autre conduite de liaison.The pockets define a route for the first fluid between an upstream link line adjacent to a first longitudinal end of the stack and a pipe of downstream link adjacent to the second longitudinal end of stacking, passing alternately from a conduct of link belonging to one of the collector boxes to a link line belonging to the other collector box, through U-shaped paths each of which connects between they enter the rooms of entry and exit of the same pocket. The upstream and downstream connection lines are connected to inlet and outlet passages provided for at one of said longitudinal ends, one directly and one through the aforementioned longitudinal tubing. This tubing passes through the openings in the pipe or pipes interposed connection between this same end and said other liaison line.

De tels échangeurs de chaleur sont couramment utilisés en tant qu'évaporateurs dans des dispositifs de climatisation de l'habitacle des véhicules.Such heat exchangers are commonly used as evaporators in air-conditioning systems the passenger compartment of the vehicles.

Les pochettes sont formées chacune de deux plaques de tôle embouties en forme de cuvettes, dont les concavités sont tournées l'une vers l'autre et qui sont mutuellement reliées de façon étanche à leur périphérie, les chambres d'entrée et de sortie étant délimitées par des régions des cuvettes de plus grande profondeur que les régions restantes, de façon à réserver entre deux pochettes voisines, en regard desdites régions restantes, un intervalle pour le passage du second fluide dans la direction latérale, et lesdites ouvertures étant ménagées dans les fonds des cuvettes, qui sont en contact mutuel étanche autour des ouvertures.The pockets are each formed of two sheet metal plates shaped cups, whose concavities are turned towards each other and which are mutually connected to each other waterproof way to their periphery, the entrance and output being delineated by regions of the cuvettes more great depth that the remaining regions, so as to to reserve between two pockets, next to said remaining regions, an interval for the passage of the second fluid in the lateral direction, and said openings being in the bottoms of the cuvettes, which are in contact mutual tight around the openings.

Les deux cuvettes de chaque pochette sont en outre reliées de façon étanche en une zone médiane de leur largeur et sur une fraction notable de leur longueur à partir d'un premier bord d'extrémité, les deux branches dudit trajet en U s'étendant de part et d'autre de ladite zone médiane, ainsi que lesdites régions de plus grande profondeur des cuvettes, disposées au voisinage dudit premier bord d'extrémité.The two bowls of each pocket are also connected to waterproof way in a median area of their width and on a significant fraction of their length from a first edge end, the two branches of said U-shaped path extending from both sides of said median zone, as well as regions of greater depth of the bowls arranged at near said first end edge.

Dans les échangeurs de chaleur connus de ce type, la tubulure longitudinale, encore appelée pipette, possède une section transversale circulaire, comme enseigné par la publication EP 0 911 595.In known heat exchangers of this type, the tubing longitudinal, also called pipette, has a section circular cross-section, as taught by the EP publication 0,911,595.

L'un des buts de l'invention est d'améliorer encore les caractéristiques de fonctionnement de ces échangeurs.One of the aims of the invention is to further improve the operating characteristics of these exchangers.

Elle vise aussi à améliorer le passage du premier fluide ainsi que l'équilibrage de l'échangeur de chaleur.It also aims to improve the passage of the first fluid as well than the balancing of the heat exchanger.

L'invention propose à cet effet un échangeur de chaleur du type défini en introduction, dans lequel la tubulure longitudinale présente une section transversale de forme générale oblongue dont la plus grande dimension est parallèle à la plus grande dimension des pochettes.The invention proposes for this purpose a heat exchanger of the type defined in the introduction, in which the longitudinal tubing has a generally oblong cross-section whose largest dimension is parallel to the largest size of the pockets.

Il a été constaté que cette tubulure longitudinale, en raison de sa section transversale oblongue, améliore le passage du premier fluide et peut, en outre, être positionnée de façon à ne pas obturer partiellement les chambres définies dans les pochettes. En outre, grâce à cette forme particulière, la tubulure longitudinale s'adapte mieux à la forme des boítes collectrices dans le cas où les plaques ont une faible largeur (dans la direction latérale), typiquement inférieure à 60 mm.It has been found that this longitudinal tubing, due its oblong cross-section, improves the passage of the first fluid and may, in addition, be positioned so as to do not partially close the rooms defined in the pockets. In addition, thanks to this particular form, the longitudinal tubing adapts better to the shape of the boxes in the case where the plates have a narrow width (in the lateral direction), typically less than 60 mm.

Des caractéristiques optionnelles de l'invention, complémentaires ou alternatives, sont énoncées ci-après :

  • La section transversale de la tubulure longitudinale est de forme générale ovale.
  • La tubulure longitudinale est solidaire d'une boíte d'extrémité qui coiffe ladite face d'extrémité.
  • La boíte d'extrémité comporte une première cavité munie d'une ouverture dans laquelle débouche la tubulure longitudinale et une deuxième cavité munie d'une ouverture débouchant dans une conduite de liaison aval adjacente à ladite extrémité de l'échangeur de chaleur.
  • La boíte d'extrémité reçoit une plaque conformée définissant un embout d'entrée communiquant avec la première cavité et un embout de sortie communiquant avec la deuxième cavité.
  • La tubulure longitudinale est sertie aux bords de l'ouverture de la première cavité.
  • La tubulure longitudinale traverse de manière étanche une cloison intermédiaire qui sépare la conduite de liaison amont d'une conduite de liaison adjacente traversée par la tubulure longitudinale.
  • La conduite de liaison adjacente s'étend jusqu'à la face d'extrémité de l'échangeur de chaleur.
  • La tubulure longitudinale est brasée sur le bord extérieur des ouvertures qui font communiquer les pochettes deux à deux.
  • Les directions longitudinale et latérale sont sensiblement horizontales et les boítes collectrices sont disposées à la partie supérieure de l'échangeur.
Optional features of the invention, complementary or alternative, are set out below:
  • The cross section of the longitudinal tubing is generally oval.
  • The longitudinal tubing is secured to an end box which caps said end face.
  • The end box comprises a first cavity provided with an opening into which the longitudinal tubing opens and a second cavity provided with an opening opening into a downstream connection line adjacent to said end of the heat exchanger.
  • The end box receives a shaped plate defining an inlet end communicating with the first cavity and an outlet end communicating with the second cavity.
  • The longitudinal tubing is crimped at the edges of the opening of the first cavity.
  • The longitudinal pipe passes through an intermediate wall which separates the upstream connecting pipe from an adjacent connecting pipe traversed by the longitudinal pipe.
  • The adjacent bond line extends to the end face of the heat exchanger.
  • The longitudinal tubing is brazed to the outer edge of the openings that communicate the bags in pairs.
  • The longitudinal and lateral directions are substantially horizontal and the collector boxes are arranged at the upper part of the exchanger.

Dans la description qui suit, faite seulement à titre d'exemple, on se réfère aux dessins annexés, sur lesquels :

  • la Figure 1 est une vue partielle d'un échangeur de chaleur selon l'invention, en coupe selon la ligne I-I de la Figure 2 ;
  • la Figure 2 est une vue de dessus de l'échangeur de chaleur, en coupe selon la ligne II-II de la Figure 1 ;
  • la Figure 3 est une vue en coupe transversale de la tubulure longitudinale de l'échangeur de chaleur des Figures 1 et 2 ;
  • la Figure 4 est un détail à échelle agrandie de la figure 2; et
  • la Figure 5 est une vue en perspective montrant un ensemble tubulure longitudinale-boíte d'extrémité propre à faire partie de l'échangeur de chaleur des Figures 1 et 2.
In the description which follows, made only by way of example, reference is made to the appended drawings, in which:
  • Figure 1 is a partial view of a heat exchanger according to the invention, in section along the line II of Figure 2;
  • Figure 2 is a top view of the heat exchanger, in section along the line II-II of Figure 1;
  • Figure 3 is a cross-sectional view of the longitudinal tubing of the heat exchanger of Figures 1 and 2;
  • Figure 4 is an enlarged detail of Figure 2; and
  • Figure 5 is a perspective view showing a longitudinal tubular assembly-end box clean to be part of the heat exchanger of Figures 1 and 2.

L'échangeur de chaleur représenté sur les dessins est un évaporateur destiné à un dispositif de climatisation de l'habitacle d'un véhicule automobile. Il comprend une multiplicité de pochettes 1 mutuellement empilées dans une direction longitudinale sensiblement horizontale, et formées chacune de deux plaques de tôle embouties en forme de cuvettes 2 et 3. Ces dernières sont identiques entre elles et elles ont leurs concavités tournées l'une vers l'autre, soit respectivement vers des seconde et première extrémités longitudinales 5, 4 de l'empilement. Chaque cuvette présente un bord périphérique 6 situé dans un plan vertical, et les bords périphériques 6 des deux cuvettes formant une pochette sont mutuellement assemblés de façon étanche au fluide, par brasage, pour délimiter le volume intérieur de la pochette.The heat exchanger shown in the drawings is a evaporator for an air conditioning device of the passenger compartment of a motor vehicle. It includes a multiplicity of pockets 1 mutually stacked in a longitudinal direction substantially horizontal, and formed each of two plate plates stamped cup-shaped 2 and 3. These are identical to each other and they have their concavities turned towards each other, either respectively to second and first ends longitudinal 5, 4 of the stack. Each bowl has a peripheral edge 6 located in a vertical plane, and the edges 6 of the two bowls forming a pocket are mutually assembled in fluid-tight manner by brazing, to delimit the interior volume of the pouch.

Chaque cuvette présente en outre, à sa partie supérieure, deux régions 7 d'une profondeur plus grande que celle de la région restante 8, cette dernière occupant la majeure partie de la hauteur de la cuvette, au-dessous des régions 7 (Figure 2). Ces deux régions de plus grande profondeur de chaque cuvette, juxtaposées de la gauche vers la droite des figures, définissent dans chaque pochette une chambre d'entrée et une chambre de sortie pour un premier fluide, ici le fluide réfrigérant.Each bowl has in addition, at its upper part, two regions 7 deeper than the region remaining 8, the latter occupying most of the height of the bowl, below the regions 7 (Figure 2). These two regions of greater depth of each bowl, juxtaposed from the left to the right of the figures, define in each pocket an entrance chamber and a outlet chamber for a first fluid, here the fluid refrigerant.

La chambre d'entrée et la chambre de sortie de chaque pochette sont séparées l'une de l'autre par une zone de jonction étanche 9 entre les deux cuvettes à mi-largeur de la pochette, cette zone de jonction se raccordant au bord 6 à l'extrémité supérieure 10 de la pochette et se prolongeant vers le bas jusqu'au voisinage de l'extrémité inférieure de la pochette de façon à définir dans celle-ci, en regard des régions 8 des cuvettes, un trajet en U pour le fluide entre la chambre d'entrée et la chambre de sortie (Figure 2).The entrance room and the exit room of each pocket are separated from each other by a sealed junction zone 9 between the two cuvettes at the half-width of the cover, this junction area connecting to the edge 6 at the end top 10 of the wallet and extending down to the vicinity of the lower end of the define in it, in relation to the regions 8 of the cups, a U-shaped path for the fluid between the chamber inlet and outlet chamber (Figure 2).

Le fond de chaque cuvette est traversé, dans chacune des régions 7 de plus grande profondeur, par une ouverture 11 et les fonds tournés l'un vers l'autre d'une cuvette 2 et d'une cuvette 3 adjacente sont mutuellement liés de façon étanche autour des ouvertures, par brasage.The bottom of each bowl is crossed, in each of regions 7 of greater depth, through an opening 11 and funds turned towards each other from a bowl 2 and a 3 adjacent bowl are mutually connected tightly around the openings, by brazing.

L'alignement des chambres d'entrée/sortie situées du côté gauche des figures forme une boíte collectrice 16, et l'alignement des chambres d'entrée/sortie situées sur le côté droit forme une boíte collectrice 17 (Figure 1). La boíte collectrice 16 est subdivisée par une cloison transversale 18 en une conduite de liaison 12 s'étendant de cette cloison à l'extrémité 4 de l'empilement et une conduite de liaison 14 s'étendant de la cloison à l'extrémité 5. De même, une cloison transversale 19, plus éloignée de l'extrémité 4 que la cloison 18, sépare la boíte collectrice 17 en une conduite de liaison 13 adjacente à l'extrémité 4 et une conduite de liaison 15 adjacente à l'extrémité 5. Une plaque d'extrémité 20 est brasée au fond de la cuvette 3 située à l'extrémité 4 de l'empilement, tandis qu'une boíte d'extrémité 21 (voir aussi les Figures 4 et 5) est brasée au fond de la cuvette 3 située à l'extrémité 5 de l'empilement. De cette manière, les ouvertures 11 des cuvettes sont obturées, ce qui contribue à délimiter les conduites de liaison. Les chambres d'entrée/sortie formant une même conduite de liaison communiquent entre elles par les ouvertures 11 des cuvettes 2, 3.The alignment of the entry / exit chambers located on the left of the figures forms a collector box 16, and the alignment of the input / output chambers on the side right forms a collector box 17 (Figure 1). The box collector 16 is subdivided by a transverse partition 18 in a connecting pipe 12 extending from this partition to the end 4 of the stack and a connecting pipe 14 extending from the bulkhead to the end 5. Similarly, a partition transverse 19, farther from the end 4 than the partition 18, separates the collector box 17 into a connection line 13 adjacent to the end 4 and a connecting line 15 adjacent to the end 5. An end plate 20 is brazed at the bottom of the bowl 3 located at the end 4 of the stack, while an end box 21 (see also FIGS. 5) is brazed to the bottom of the bowl 3 located at the end 5 of stacking. In this way, the openings 11 of the bowls are closed off, which helps to delineate the link. The entry / exit chambers forming the same pipe linkages communicate with each other through the openings 11 of the bowls 2, 3.

Une tubulure longitudinale 22, encore appelée "pipette", s'étend sur toute la longueur de la conduite de liaison 14. Elle est reliée de manière étanche à la boíte d'extrémité 21 et elle traverse de manière étanche la cloison intermédiaire 18, de manière à mettre en communication la conduite de liaison 12 (conduite de liaison amont) avec la partie du circuit de fluide réfrigérant située en amont de l'évaporateur.Longitudinal tubing 22, also called "pipette", extends over the entire length of the connecting pipe 14. It is sealingly connected to the end box 21 and it passes through the intermediate partition 18 in a sealed manner, in order to connect the connection line 12 (upstream connection line) with the part of the fluid circuit refrigerant located upstream of the evaporator.

Par ailleurs, la boíte d'extrémité 21 comporte une ouverture 23 qui débouche dans la conduite de liaison 15, de manière à mettre celle-ci en communication avec la partie aval du circuit. Moreover, the end box 21 has an opening 23 which opens into the connecting pipe 15, so as to communicate with the downstream part of the circuit.

Le fluide réfrigérant pénètre dans la conduite de liaison 12 par la tubulure longitudinale 22, passe ensuite dans la conduite de liaison 13, en empruntant en parallèle les trajets en U d'un premier groupe de pochettes. Il est ensuite transféré à la conduite de liaison 14, par l'intermédiaire des trajets en U d'un second groupe de pochettes, puis à la conduite de liaison 15, par l'intermédiaire des trajets en U d'un troisième et dernier groupe de pochettes. Le fluide quitte enfin l'évaporateur par l'ouverture de sortie 23. Lors de la circulation dans les trajets en U, le fluide reçoit de la chaleur d'un flux d'air qui traverse l'évaporateur horizontalement de la droite vers la gauche, selon la flèche F1, en passant par les intervalles qui séparent les pochettes en regard des régions 8 des cuvettes.The refrigerant enters the connecting pipe 12 longitudinal tubing 22, then passes into the link line 13, taking the paths in parallel in U of a first group of pockets. He is then transferred to the connection line 14, via the paths in U of a second group of pockets, then to the conduct of link 15, via the U-paths of a third and last group of pockets. The fluid finally leaves the evaporator through the outlet opening 23. At the circulation in the U-shaped paths, the fluid receives from the heat of a flow of air flowing through the evaporator horizontally from right to left, according to the arrow F1, through the intervals that separate the pockets next to the regions 8 of the cuvettes.

Conformément à l'invention, la tubulure 22 présente une section transversale de forme oblongue, dans l'exemple de forme ovale (Figure 3), dont la plus grande dimension est parallèle à la plus grande dimension des pochettes. Cela signifie que la plus grande dimension de la section ovale est verticale si l'on considère la Figure 1.According to the invention, the tubing 22 has a section transverse oblong shape, in the oval example (Figure 3), whose largest dimension is parallel to the larger size of the pockets. It means that the most large dimension of the oval section is vertical if one consider Figure 1.

Par ailleurs, la tubulure 22 est décalée par rapport au centre des ouvertures 11 des cuvettes qui définissent la boíte collectrice 16. Dans l'exemple illustré, la tubulure est décalée vers l'extérieur, ici vers la gauche, c'est-à-dire vers l'aval par rapport au flux d'air F1. Plus particulièrement, le contour de chaque ouverture 11 a une forme ovale et est composé de deux segments de droite horizontaux 30 et de deux arcs de cercle 31 dont les concavités sont tournées l'une vers l'autre et qui se raccordent aux segments 30 (Figure 1). La tubulure 22 vient s'appuyer sur l'un des deux arcs de cercle 31 (celui situé vers la gauche) sur le bord des ouvertures qu'elle traverse, et elle est brasée à ce bord sur toute la longueur de l'arc de cercle 31 situé à gauche. Ainsi, la plus grande dimension de la section transversale de la tubulure 22 est perpendiculaire à la plus grande dimension de l'ouverture 11 (Figure 1).Moreover, the tubing 22 is offset with respect to the center openings 11 of the bowls which define the box In the illustrated example, the tubing is shifted outward, here to the left, that is to say towards the downstream relative to the flow of air F1. In particular, the outline of each opening 11 has an oval shape and is composed of two horizontal line segments 30 and two arcs of circle 31 whose concavities are turned towards each other and which connect to the segments 30 (Figure 1). The tubing 22 comes to rest on one of the two arcs of circle 31 (the one located to the left) on the edge of the openings it crosses, and she is brazed to this edge the entire length of the circular arc 31 located on the left. So, the biggest dimension of the cross section of the tubing 22 is perpendicular to the largest dimension of the opening 11 (Figure 1).

Comme on le voit sur les Figures 4 et 5, la tubulure longitudinale 22 est solidaire de la boíte d'extrémité 21 qui vient coiffer la face d'extrémité 5 de l'évaporateur. Cette boíte d'extrémité 21 comporte une première cavité 32 munie d'une ouverture 33 de forme ovale dans laquelle débouche la tubulure longitudinale 22. La tubulure longitudinale 22 est sertie aux bords de cette ouverture 33. Par ailleurs, la boíte d'extrémité 21 comporte une deuxième cavité 34 dans laquelle est formée l'ouverture 23 précitée, qui débouche dans la conduite de liaison aval 15. La boíte d'extrémité 21 a ici une forme en double cuvette qui s'apparente à celle d'une plaque 2.As seen in Figures 4 and 5, the tubing longitudinal 22 is secured to the end box 21 which just cap the end face 5 of the evaporator. This end box 21 has a first cavity 32 provided with an opening 33 of oval form in which opens the longitudinal tubing 22. The longitudinal tubing 22 is crimped at the edges of this opening 33. In addition, the box end 21 comprises a second cavity 34 in which is formed the opening 23 above, which opens into the downstream connection line 15. The end box 21 here has a double bowl shape similar to that of a plate 2.

Cette boíte d'extrémité 21 reçoit une plaque conformée 35 (Figures 2 et 4) qui définit un embout d'entrée 36 communiquant avec la cavité 32 et donc avec la tubulure 22, et un embout de sortie 37 communiquant avec la deuxième cavité 34, donc avec l'ouverture de sortie 23. On forme ainsi un embout d'entrée et un embout de sortie en extrémité de l'évaporateur, c'est-à-dire à l'extrémité de l'empilement des plaques.This end box 21 receives a shaped plate 35 (Figures 2 and 4) which defines an inlet tip 36 communicating with the cavity 32 and therefore with the tubing 22, and a nozzle of output 37 communicating with the second cavity 34, so with the outlet opening 23. Thus, an inlet endpiece is formed and an outlet tip at the end of the evaporator, that is to say at the end of the stack of plates.

La tubulure longitudinale est susceptible d'être brasée aux bords d'une ouverture 11 qui fait communiquer la conduite de liaison amont 12 avec une conduite de liaison adjacente 14, laquelle est traversée par cette tubulure longitudinale. Cette conduite de liaison adjacente 14 s'étend jusqu'à la face d'extrémité 5 de l'échangeur de chaleur.The longitudinal tubing is capable of being soldered to edges of an opening 11 which communicates the conduct of upstream link 12 with an adjacent link line 14, which is traversed by this longitudinal tubular. This adjacent connecting pipe 14 extends to the face end 5 of the heat exchanger.

En outre, la tubulure longitudinale 22 est brasée sur le bord extérieur des ouvertures 11 qui font communiquer les pochettes deux à deux.In addition, the longitudinal tubing 22 is brazed on the edge outer openings 11 which communicate the pockets two by two.

Dans la forme de réalisation représentée, les directions longitudinale et latérale de l'échangeur sont sensiblement horizontales, tandis que les boítes collectrices 16 et 17 sont disposées à la partie supérieure de l'échangeur (Figure 1). In the embodiment shown, the directions longitudinal and lateral of the exchanger are substantially horizontally, while the collector boxes 16 and 17 are arranged at the top of the exchanger (Figure 1).

Il a été constaté que grâce à la forme oblongue de la section transversale de la tubulure longitudinale, on améliore les performances de l'échangeur de chaleur, ici de l'évaporateur.It was found that thanks to the oblong shape of the section cross section of the longitudinal tubing, the performance of the heat exchanger, here of the evaporator.

Plus particulièrement, on améliore ainsi le passage du fluide en limitant la perte de charge interne et en augmentant les performances.More particularly, the passage of the fluid is thus improved. by limiting the internal pressure drop and increasing the performance.

La tubulure longitudinale, grâce à sa forme oblongue, peut être positionnée de façon à ne pas obturer partiellement les canaux et elle s'adapte mieux à la forme des boítes.The longitudinal tubing, thanks to its oblong shape, can be positioned so as not to partially close the channels and it adapts better to the shape of the boxes.

Elle permet ainsi de se loger dans des plaques qui ont une largeur relativement faible, typiquement inférieure à 60 mm. Il en résulte également une amélioration de l'équilibrage de l'évaporateur.It thus makes it possible to lodge in plates which have a relatively small width, typically less than 60 mm. he This also results in an improvement of the balancing of the evaporator.

On constate une amélioration significative des performances de l'évaporateur grâce à l'invention.There is a significant improvement in the performance of the evaporator with the invention.

La disposition selon l'invention améliore également l'homogénéité de l'échange de chaleur dans le volume de l'évaporateur, et par conséquent l'homogénéité de la répartition de températures au sein du flux d'air sortant de celui-ci, avec atténuation des phénomènes de points chauds et de points froids.The arrangement according to the invention also improves the homogeneity of heat exchange in the volume of the evaporator, and therefore the homogeneity of the temperature distribution within the outgoing airflow of this one, with attenuation of the phenomena of hot spots and cold spots.

Par ailleurs, le brasage de la tubulure longitudinale aux bords des ouvertures, sur une longueur importante de ceux-ci, entraíne une rigidification et une réduction des bruits de fonctionnement.Furthermore, the brazing of the longitudinal tubing at the edges openings, over a significant length of these, causes a stiffening and a reduction of the noise of operation.

Dans l'invention, la section transversale de la tubulure peut présenter une forme oblongue différente d'une forme ovale, par exemple une forme elliptique, rectangulaire, etc.In the invention, the cross section of the tubing can have an oblong shape different from an oval shape, for an elliptical, rectangular shape, etc.

L'invention trouve une application particulière à la réalisation d'évaporateurs pour dispositifs de climatisation de véhicules.The invention finds particular application to the production of evaporators for air-conditioning devices vehicles.

Claims (10)

  1. Heat exchanger for heat exchange between a first fluid and a second fluid, especially an evaporator for an air-conditioning unit of the passenger compartment of a motor vehicle, comprising a stack of pockets (1) mutually aligned in a longitudinal direction and having two header boxes (16, 17) mutually juxtaposed in a lateral direction, each header box being formed by the alignment, in the longitudinal direction, of input or output chambers belonging respectively to the various pockets, the header boxes being subdivided in their entirety into at least three linking ducts, in which the first fluid is injected into an upstream linking duct (12) via a longitudinal tube (22), which traverses an end face (5) of the heat exchanger, remote from the upstream linking duct, and at least one other linking duct (14) formed by other pockets,
    characterized in that the said longitudinal tube (22) has a cross section of oblong general shape, the longest dimension of which is parallel to the longest dimension of the pockets (1).
  2. Heat exchanger according to Claim 1, characterized in that the cross section of the longitudinal tube (22) is of oval general shape.
  3. Heat exchanger according to either of Claims 1 and 2, characterized in that the longitudinal tube (22) is fastened to an end box (21) that covers the said end face (5).
  4. Heat exchanger according to Claim 3, characterized in that the end box (21) has a first cavity (32) provided with an opening (33) into which the longitudinal tube (22) runs and a second cavity (34) provided with an opening (23) that runs into a downstream linking duct (15) adjacent to the said end (5) of the heat exchanger.
  5. Heat exchanger according to Claim 4, characterized in that the end box (21) receives a shaped plate (35) that defines an inlet end-fitting (36) communicating with the first cavity (32) and an outlet end-fitting (37) communicating with the second cavity (34).
  6. Heat exchanger according to either of Claims 4 and 5, characterized in that the longitudinal tube (22) is crimped to the edges of the opening (33) of the first cavity (32).
  7. Heat exchanger according to one of Claims 1 to 6, characterized in that the longitudinal tube (22) passes in a sealed manner through an intermediate partition (18) that separates the upstream linking duct (12) from an adjacent linking duct (14) through which the longitudinal tube (22) passes.
  8. Heat exchanger according to Claim 7, characterized in that the said adjacent linking duct (14) extends as far as the end face (5) of the heat exchanger.
  9. Heat exchanger according to one of Claims 1 to 8, characterized in that the longitudinal tube (22) is brazed to the outer edge of the openings (11) that connect the pockets (1) together in pairs.
  10. Heat exchanger according to one of Claims 1 to 9, characterized in that the longitudinal and lateral directions are approximately horizontal and the header boxes (16, 17) are placed in the upper part of the exchanger.
EP02764927A 2001-06-26 2002-06-24 Improved performance heat exchanger, in particular an evaporator Expired - Lifetime EP1399702B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0108414A FR2826439B1 (en) 2001-06-26 2001-06-26 HEAT EXCHANGER, PARTICULARLY EVAPORATOR, WITH IMPROVED PERFERMANCE
FR0108414 2001-06-26
PCT/FR2002/002183 WO2003001134A1 (en) 2001-06-26 2002-06-24 Improved performance heat exchanger, in particular an evaporator

Publications (2)

Publication Number Publication Date
EP1399702A1 EP1399702A1 (en) 2004-03-24
EP1399702B1 true EP1399702B1 (en) 2004-10-06

Family

ID=8864780

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02764927A Expired - Lifetime EP1399702B1 (en) 2001-06-26 2002-06-24 Improved performance heat exchanger, in particular an evaporator

Country Status (10)

Country Link
US (1) US7059395B2 (en)
EP (1) EP1399702B1 (en)
CN (1) CN1520507A (en)
AT (1) ATE278925T1 (en)
CZ (1) CZ296755B6 (en)
DE (1) DE60201538T2 (en)
ES (1) ES2230515T3 (en)
FR (1) FR2826439B1 (en)
MX (1) MXPA04000061A (en)
WO (1) WO2003001134A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2918166B1 (en) * 2007-06-27 2017-07-21 Valeo Systemes Thermiques Branche Thermique Moteur HEAT EXCHANGER WITH OPTIMIZED STRUCTURE.
FR2924792A1 (en) * 2008-04-17 2009-06-12 Valeo Vymeniky Tepla Heat exchanger for air conditioning motor vehicle, has fluid injecting pipe arranged in part of fluid collecting inlet case situated opposite to outlet of U-shaped channels with respect to longitudinal axis of case
US9033030B2 (en) * 2009-08-26 2015-05-19 Munters Corporation Apparatus and method for equalizing hot fluid exit plane plate temperatures in heat exchangers
GB2565145B (en) * 2017-08-04 2021-06-30 Hieta Tech Limited Heat exchanger
CN110186300B (en) * 2019-06-27 2024-10-15 浙江银轮机械股份有限公司 Plate, plate assembly and heat exchanger

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4274482A (en) * 1978-08-21 1981-06-23 Nihon Radiator Co., Ltd. Laminated evaporator
JPH0717965Y2 (en) * 1990-02-22 1995-04-26 サンデン株式会社 Heat exchanger
JPH04155194A (en) * 1990-10-17 1992-05-28 Nippondenso Co Ltd Heat exchanger
JP3158232B2 (en) * 1993-05-20 2001-04-23 株式会社ゼクセルヴァレオクライメートコントロール Stacked heat exchanger
KR100353020B1 (en) * 1993-12-28 2003-01-10 쇼와 덴코 가부시키가이샤 Multilayer Heat Exchanger
JPH08114393A (en) * 1994-08-25 1996-05-07 Zexel Corp Laminated heat exchanger
JP3705859B2 (en) * 1996-03-29 2005-10-12 サンデン株式会社 Heat exchanger with distribution device
JPH09309321A (en) * 1996-05-23 1997-12-02 Zexel Corp Lamination type heat exchanger
DE19719252C2 (en) * 1997-05-07 2002-10-31 Valeo Klimatech Gmbh & Co Kg Double-flow and single-row brazed flat tube evaporator for a motor vehicle air conditioning system
EP0905467B1 (en) * 1997-09-24 2003-06-18 Showa Denko K.K. Evaporator
FR2769974B1 (en) 1997-10-20 2000-01-07 Valeo Climatisation EVAPORATOR WITH IMPROVED HEAT EXCHANGE CAPACITY
FR2826438B1 (en) * 2001-06-20 2004-01-23 Valeo Climatisation ARRANGEMENT OF INPUT AND OUTPUT TUBES FOR AN EVAPORATOR

Also Published As

Publication number Publication date
EP1399702A1 (en) 2004-03-24
CN1520507A (en) 2004-08-11
CZ296755B6 (en) 2006-06-14
ES2230515T3 (en) 2005-05-01
FR2826439B1 (en) 2003-10-03
FR2826439A1 (en) 2002-12-27
CZ20033556A3 (en) 2004-06-16
US20040182554A1 (en) 2004-09-23
MXPA04000061A (en) 2004-05-21
DE60201538T2 (en) 2006-02-02
WO2003001134A1 (en) 2003-01-03
ATE278925T1 (en) 2004-10-15
DE60201538D1 (en) 2004-11-11
US7059395B2 (en) 2006-06-13

Similar Documents

Publication Publication Date Title
EP1992891B1 (en) Condenser, in particular for an automobile air-conditioning circuit, and circuit comprising such a condenser
EP2064506B1 (en) Heat exchanger, in particular charge air cooler
FR2771483A1 (en) HEAT EXCHANGER FOR MOTOR VEHICLES
EP2936027B1 (en) Heat exchanger, in particular for a refrigerant circulating in a motor vehicle
EP0911595B1 (en) Heat exchanger with improved heat exchange capacity
EP2105694A1 (en) Plate for an heat exchanger
EP1399702B1 (en) Improved performance heat exchanger, in particular an evaporator
EP2795223A1 (en) Heat exchanger, assembly of such an exchanger and of a collector box or boxes, and an air intake module comprising such an assembly
EP0990106B1 (en) Air conditioning condenser comprising a reservoir mounted on a base
EP0838653A1 (en) Heat exchanger with improved feeding for heating, ventilating and/or air conditioning installations especially for motor vehicles
FR3030710A1 (en) COLLECTOR BOX FOR HEAT EXCHANGER AND HEAT EXCHANGER EQUIPPED WITH SAID COLLECTOR BOX
FR2936043A1 (en) Heat exchanger i.e. charge air cooler, for turbocharged engine of vehicle, has charge air circulation tubes for circulating charge air, and case for receiving tubes, where tubes are formed by case and two plates that are brazed on case
EP1015838B1 (en) Motor vehicle heat exchanger and method for making same
EP1271083B1 (en) Inlet and outlet tube arrangement for evaporator
FR2962200A1 (en) Exchange unit for bundle of heat exchanger of motor vehicle in air conditioning field of vehicle, has tube block whose right end is assembled in connection opening to permit communication between volume of channel and volume of tubes
WO2012055790A1 (en) Heat exchanger with lateral fluid supply
EP3449197A1 (en) Heat exchanger made from plastic material and vehicle comprising said heat exchanger
FR3068452B1 (en) MULTI-PASS HEAT EXCHANGER COMPRISING A REFRIGERANT FLUID CIRCUIT
FR2825793A1 (en) Panel heat exchanger for motor vehicle air conditioning has stacked panels with slotted inlet tube having porous diffuser tube
FR2532739A1 (en) Box forming part of a heating or air conditioning system for a motor vehicle
EP1546627B1 (en) Plate heat exchanger, in particular for motor vehicles
FR3060724A1 (en) THERMAL EXCHANGER, IN PARTICULAR EVAPORATOR, WITH A CONNECTION DEVICE FOR THE INTRODUCTION AND EXTRACTION OF A HEAT PUMP FLUID.
WO2019115885A1 (en) Heat exchanger, in particular an evaporator, provided with a connection device for introducing and extracting a heat transfer fluid
EP1265045A2 (en) High refrigeration power evaporator for vehicle air conditioning system
FR2825792A1 (en) Evaporator for motor vehicle air conditioning has stacked plates defining U-shaped flow paths between each pair of plates

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20031216

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20041006

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041006

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041006

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041006

Ref country code: GB

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041006

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041006

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041006

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: FRENCH

REF Corresponds to:

Ref document number: 60201538

Country of ref document: DE

Date of ref document: 20041111

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050106

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050106

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050106

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20041006

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2230515

Country of ref document: ES

Kind code of ref document: T3

GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20041006

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050624

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050624

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050630

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050630

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20050707

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060630

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060630

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

BERE Be: lapsed

Owner name: *VALEO CLIMATISATION

Effective date: 20050630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050306

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20210630

Year of fee payment: 20

Ref country code: DE

Payment date: 20210616

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20210707

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 60201538

Country of ref document: DE

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20220701

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20220625