EP3311095B1 - Heat exchanger and associated method for producing same - Google Patents

Heat exchanger and associated method for producing same Download PDF

Info

Publication number
EP3311095B1
EP3311095B1 EP16730427.8A EP16730427A EP3311095B1 EP 3311095 B1 EP3311095 B1 EP 3311095B1 EP 16730427 A EP16730427 A EP 16730427A EP 3311095 B1 EP3311095 B1 EP 3311095B1
Authority
EP
European Patent Office
Prior art keywords
tubes
flanges
holes
heat exchanger
collector plate
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.)
Active
Application number
EP16730427.8A
Other languages
German (de)
French (fr)
Other versions
EP3311095A1 (en
Inventor
Patrick Boisselle
Kamel Azzouz
Samuel BRY
Xavier Marchadier
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 Systemes Thermiques SAS
Original Assignee
Valeo Systemes Thermiques SAS
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 Systemes Thermiques SAS filed Critical Valeo Systemes Thermiques SAS
Priority to PL16730427T priority Critical patent/PL3311095T3/en
Publication of EP3311095A1 publication Critical patent/EP3311095A1/en
Application granted granted Critical
Publication of EP3311095B1 publication Critical patent/EP3311095B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/025—Tubular elements of cross-section which is non-circular with variable shape, e.g. with modified tube ends, with different geometrical features
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0224—Header boxes formed by sealing end plates into covers
    • 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
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/165—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by using additional preformed parts, e.g. sleeves, gaskets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/26—Safety or protection arrangements; Arrangements for preventing malfunction for allowing differential expansion between elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/04—Fastening; Joining by brazing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/12—Fastening; Joining by methods involving deformation of the elements
    • F28F2275/125—Fastening; Joining by methods involving deformation of the elements by bringing elements together and expanding

Definitions

  • the invention relates to a heat exchanger according to claim 1, in particular for a motor vehicle, and to its method of manufacture according to claim 7.
  • the document EP 1 034 410 A1 discloses a heat exchanger according to the preamble of claim 1.
  • the invention more particularly relates to a heat exchanger of the type comprising a multiplicity of tubes between which are inserted tabs.
  • the tubes are generally tubes of oval or oblong section, defined by a major axis and a minor axis, and having ends inserted into holes of a header plate.
  • the tubes, spacers and the collector plate are generally made of metal material and fixed together during a single soldering step.
  • connection between the tubes and the collector plate is rigid and can not compensate for the phenomena of expansion and retraction related to the temperature variation. Over time these bonds weaken and breaks or leaks can occur.
  • An object of the present invention is therefore to at least partially overcome the disadvantages of the prior art and to provide an improved heat exchanger and its manufacturing process.
  • connection between the beam and the collector plate allows a certain flexibility that can absorb the expansions and retractions related to temperature variations .
  • the connection between the beam and the collector plate is therefore more resistant to these temperature variations.
  • the heat exchanger benefits from optimal thermal performance, linked to the brazed beam, and better resistance to thermal variation, linked to the connection between the beam and the plate collector plate.
  • said collector plate may be of a smaller thickness and it is less necessary to strengthen the collector.
  • each tube has an oblong section.
  • the ends of the tubes comprise a first flare and a bearing zone compressing the compressible seal.
  • the ends of the tubes comprise in addition or alternatively the first flare, at least a second flare overlying the compressible seal. It will therefore be understood that the ends of the tubes may comprise independently the first flare or the second flare, or the first and second flare.
  • the second flare is made on a limited portion of the ends of the tubes.
  • the compression ratio of said second collars is between 10% and 50% and preferably between 25% and 35%.
  • the step d) of inserting the ends of the tubes into the holes of the collector plate so as to compress the second collars comprises a first substep of insertion of the ends of the tubes into the holes of the collector plate and a second substep of producing a first flare and a bearing zone at the ends of the tubes.
  • the step d) of inserting the ends of the tubes into the holes of the collector plate so as to compress the second collars is a step of insertion in force of the ends of the tubes in the holes of the header plate, at least said ends having a size greater than the size of the openings of the second collars.
  • the method comprises an additional step of producing at least a second flaring of the ends of the tubes overlying the compressible seal.
  • the second flare is made on a limited portion of the ends of the tubes.
  • first element or second element as well as first parameter and second parameter, or first criterion and second criterion, and so on.
  • first element or second element as well as first parameter and second parameter, or first criterion and second criterion, and so on.
  • it is a simple indexing to differentiate and name elements or parameters or criteria close but not identical.
  • This indexing does not imply a priority of one element, parameter or criterion with respect to another, and it is easy to interchange such denominations without departing from the scope of the present description.
  • This indexing does not imply either an order in time for example to appreciate such or such criteria.
  • the heat exchanger 1 shown in Figures 1 and 2 comprises a beam 2 formed of a multiplicity of tubes 20 inside which can circulate a first heat transfer fluid.
  • the tubes 20 are arranged parallel to each other and superposed. Between the tubes 20, there are spacers 21 which act as a disrupter and increase the heat exchange surface with a second heat transfer fluid passing between said tubes 20.
  • the tubes 20 and the spacers 21 are made of metal materials and are brazed between they themselves in order to form the beam 2.
  • the fact of having a brazed beam 2 makes it possible to improve the thermal performance, that is to say the heat exchange between the two heat transfer fluids, with respect to a mechanically assembled beam.
  • the tubes 20 preferably have an oblong and relatively flat shape.
  • the tubes 20 can present within them a spacer 26 between their inner walls. This spacer 26 allows good rigidity of said tubes 20.
  • the heat exchanger 1 also comprises two collectors or water boxes disposed at each end 22 of the tubes 20. These collectors comprise a header plate 4 and a cover (not shown) coming to cover said header plate 4 and close the collector. These collectors allow the collection and / or distribution of the first heat transfer fluid so that it circulates in the tubes 20.
  • the manifold plate 4 makes the connection sealingly between the collector and the brazed beam 2.
  • Said collector plate 4 comprises a core 40, which may be of generally rectangular shape, delimiting a multiplicity of holes 43, of section corresponding to the shape of the section of the tubes 20 and adapted to receive the ends 22 of the tubes.
  • Each hole 43 is bordered by a first collar 44 directed towards the interior of the bundle 2.
  • the holes 43 are of a size similar to the openings of the first collars 44.
  • the first collars 44 may advantageously be integral with the collector plate 4 and be example formed at the same time as the holes 43 by stamping.
  • the length L1 corresponds to the largest length and may correspond to the width of the hole 43 as illustrated in FIGS. Figures 3, 3 ' and 5 to 8 .
  • the length l1 corresponds to the smallest length and may correspond to the thickness of the hole 43 as illustrated in FIG. figure 4 .
  • the lengths L1 and 11 of the hole 43 are greater than those of the ends 22 of the tubes 20. This is the width and thickness of the holes 43 echoing with the width and the thickness of the tubes 20 which are intended to be introduced into said holes 43.
  • the core 40 is extended by a peripheral groove 42 ending in a peripheral flange 46 forming foldable legs.
  • the peripheral groove 42 is intended to receive the rims of the cover and the peripheral rim 46 can be folded down to fix said cover on the collector plate 4.
  • the header plate 4 receives at least one compressible sealing gasket 41, in particular to allow sealing at the holes 43.
  • the manifold plate 4 may have only one compressible seal 41.
  • This compressible seal 41 comprises a core coming to apply on the core 40 of the header plate 4.
  • This seal core compressible seal 41 is connected to a multiplicity of second collars 45 which are each introduced into a hole 43.
  • the second collars 45 are compressed between the first collars 43 and the ends 22 to seal between said ends 22 of the tubes 20 and the corresponding first flanges 43.
  • the compression ratio of the flanges 45 is 30%.
  • the level is between 10% and 50% and preferably between 25% and 35%.
  • the core of the compressible seal 41 may form at its periphery a bead 47 disposed in the peripheral groove 42 and adapted to seal with the lid when the peripheral flange 46 is folded.
  • the manifold plate 4 may comprise a plurality of compressible seals 41 which form flanges 45 which are each introduced into a hole 43 to seal between the end 22 of a tube 20 and the first collar 43 corresponding.
  • the sealing with the lid can be achieved by an independent compressible seal and placed in the peripheral groove 42.
  • the use of a compressible seal 41 or a multitude of compressible seals 41 to make the connection between the bundle 2 and the collector plate 4, allows a certain flexibility that can absorb the dilations and retractions related to temperature variations.
  • the connection between the beam 2 and the collector plate 4 is therefore more resistant to these temperature variations.
  • the heat exchanger 1 benefits from optimal thermal performance, linked to the brazed beam 2, and better resistance to thermal variations, linked to the connection between the beam 2 and the collecting plate 4.
  • said collector plate 4 may be of a smaller thickness and it is less necessary to strengthen the collector.
  • the second collars 45 also have a shape corresponding to that of the section of the tubes 20, or at least their ends 22. It is therefore also possible to characterize said second collars 45 along two axes of different lengths.
  • the length L2 corresponds to the width of the opening of the second collar 45 when the compressible seal 41 is not compressed, as shown in FIGS. Figures 3, 3 ', 4 and 6 .
  • the length 12 corresponds to the thickness of the opening of the second collar 45 when the compressible seal 41 is not compressed, as shown in FIG. figure 4 . In the compressed state, the opening of the second collar 45 to at least one of these lengths (width and / or thickness) which increases, for example as shown in FIGS.
  • the ends 22 of the tubes 20 have a size greater than that of the openings of the second collars 45 but less than that of the holes 43 in order to compress the compressible seal 41 at the level of the second collars 45.
  • larger or smaller size is meant at least the width and / or the thickness differ between the tubes 20 and the holes 43 or the openings of the second collars 45.
  • the body of a tube 20 and its end 22 may be of identical width and thickness, that is to say that the size (width and thickness) of the tube 20 is constant within the bundle 2.
  • compressible seal 41 is compressed because the width and thickness of the tube 20 as a whole is greater than that of the openings of the second collars 45 and smaller than that of the holes 43.
  • the body of a tube 20 and its end 22 may have a width and / or a thickness which differs.
  • the end 22 may have a sealing flange 23 which will be named in the following first flare 23 on the inside of the beam 2 and which increases the width and / or the thickness of said end 22.
  • the end 22 comprises also a bearing zone 24 which is wider and / or thicker than the rest of the body of the tube 20 because of the first flaring 23 and which compresses the compressible seal 41.
  • the ends 22 of the tubes 20 may also comprise, alternatively or in addition to the first flare 23, at least one second flare 25 - which is a retaining flare allowing mechanical locking - on the outside of the beam 2 and which overcomes the gasket. compressible seal 41 as shown in FIGS. Figures 1, 2 and 8 .
  • This second flaring 25 may in particular be made on a limited portion of the ends 22 of the tubes 20.
  • This second flaring 25 allows in particular the locking and holding in place of the manifold plate 4 on the beam 2.
  • the ends 22 of the tubes 20 each comprise two second flares 25 made on a limited portion.
  • the first 23 and second 25 flares of the ends 22 are located on either side of the collector plate 4.
  • this last step d) may comprise a first insertion sub-step ends 22 of the tubes 20 in the holes 43 of the header plate 4 and a second substep of producing a first flare 23 and the bearing zone 24 at the ends 22 of the tubes 20.
  • step is illustrated at the figure 6 and the insertion is thus easy to achieve because the end 22 of the tube 20 has a size less than or equal to the opening of the second flange 45 and the compression of the compressible seal 41 is formed by the formation of the first flare 23 and the support zone 24, as illustrated in Figures 7 and 8 .
  • This first flaring 23 and the bearing zone 24 may for example be made using a punch of shape corresponding to that of the ends 22 tubes 20.
  • the step d) of inserting the ends 22 of the tubes 20 into the holes 43 of the header plate 4 so as to compress the second collars 45 of the compressible seal 41 may be a step of insertion of the ends 22 of the tubes 20 into the holes 43 of the header plate 4.
  • the compressible seal 41 In order for the compressible seal 41 to be compressed, at least the ends 22 of the tubes 20 have a larger size than the openings of the second 45, that this is a larger size in general of the entire tube 20, as shown in the figure 6 , or else by the fact of a first flare 23 and a support zone 24, as illustrated in FIGS. Figures 7 and 8 , made beforehand on the ends 22 of the tubes 20.
  • the manufacturing method may also comprise an additional step of producing at least a second flaring 25 overlying the compressible seal 41 as illustrated in FIGS. Figures 1, 2 and 8 .
  • This second flare 25 can be made on a limited portion of the ends 22 of the tubes 20.
  • the heat exchanger 1 benefits from optimum thermal performance, linked to the brazed beam 2, and better resistance to thermal variations, linked to the mechanical connection between the beam 2 and the plate. collector 4.

Description

L'invention concerne un échangeur de chaleur suivant la revendication 1, en particulier pour véhicule automobile, et son procédé de fabrication selon la revendication 7.The invention relates to a heat exchanger according to claim 1, in particular for a motor vehicle, and to its method of manufacture according to claim 7.

Le document EP 1 034 410 A1 décrit un échangeur de chaleur selon le préambule de la revendication 1.The document EP 1 034 410 A1 discloses a heat exchanger according to the preamble of claim 1.

L'invention concerne plus particulièrement un échangeur de chaleur du type comprenant une multiplicité de tubes entre lesquels sont insérés des intercalaires. Les tubes sont généralement des tubes de section ovale ou oblongue, définie par un grand axe et un petit axe, et ayant des extrémités introduites dans des trous d'une plaque collectrice. Pour assurer une bonne étanchéité et faciliter la fabrication, les tubes, les intercalaires ainsi que la plaque collectrice sont généralement réalisés en matériau métallique et fixés entre eux lors d'une étape unique de brasage.The invention more particularly relates to a heat exchanger of the type comprising a multiplicity of tubes between which are inserted tabs. The tubes are generally tubes of oval or oblong section, defined by a major axis and a minor axis, and having ends inserted into holes of a header plate. To ensure a good seal and facilitate manufacture, the tubes, spacers and the collector plate are generally made of metal material and fixed together during a single soldering step.

Cependant, lors de l'utilisation de l'échangeur thermique, la liaison entre les tubes et la plaque collectrice est rigide et ne peut pas compenser les phénomènes de dilatation et de rétractation liés au variation de températures. Au fil du temps ces liaisons s'affaiblissent et des ruptures ou fuites peuvent apparaître.However, when using the heat exchanger, the connection between the tubes and the collector plate is rigid and can not compensate for the phenomena of expansion and retraction related to the temperature variation. Over time these bonds weaken and breaks or leaks can occur.

Un des buts de la présente invention est donc de remédier au moins partiellement aux inconvénients de l'art antérieur et de proposer un échangeur de chaleur amélioré et son procédé de fabrication.An object of the present invention is therefore to at least partially overcome the disadvantages of the prior art and to provide an improved heat exchanger and its manufacturing process.

La présente invention concerne donc un échangeur de chaleur comprenant :

  • o un faisceau de tubes comportant une multiplicité de tubes disposés parallèlement les uns aux autres et des intercalaires disposés entre lesdits tubes,
  • o une plaque collectrice comprenant des trous respectivement bordés de premiers collets dans lesquelles sont introduits des extrémités des tubes ,
le faisceau de tubes étant brasé et la plaque collectrice comportant au moins un joint d'étanchéité compressible formant des deuxièmes collets, les deuxièmes collets étant comprimés entre les premiers collets et les extrémités des tubes pour assurer l'étanchéité entre lesdites extrémités des tubes et les premiers collets correspondants.The present invention therefore relates to a heat exchanger comprising:
  • a bundle of tubes comprising a plurality of tubes arranged parallel to each other and spacers arranged between said tubes,
  • a collector plate comprising holes respectively bordered by first collars into which ends of the tubes are introduced,
the bundle of tubes being brazed and the manifold plate comprising at least one compressible seal forming second collars, the second collars being compressed between the first collars and the ends of the tubes for sealing between said ends of the tubes and the first corresponding collars.

L'utilisation d'un joint d'étanchéité compressible ou d'une multitude de joints d'étanchéité compressibles pour réaliser la liaison entre le faisceau et la plaque collectrice, permet une certaine souplesse qui peut absorber les dilatations et rétractions liées aux variations de température. La liaison entre le faisceau et la plaque collectrice est donc plus résistante à ces variations de température. Il y a un effet synergique entre la souplesse de la liaison entre le faisceau et la plaque plaque collectrice, avec le fait que le faisceau soit brasé. De ce fait, l'échangeur thermique bénéficie de performances thermiques optimales, liée au faisceau brasé, et d'une meilleure résistance aux variation thermique, liée à la liaison entre le faisceau et la plaque plaque collectrice. De plus, du fait que la plaque collectrice n'est pas brasées, ladite plaque collectrice peut être d'une épaisseur plus faible et il est moins nécessaire de renforcer le collecteur.The use of a compressible gasket or a multitude of compressible seals to make the connection between the beam and the collector plate, allows a certain flexibility that can absorb the expansions and retractions related to temperature variations . The connection between the beam and the collector plate is therefore more resistant to these temperature variations. There is a synergistic effect between the flexibility of the connection between the beam and the plate collector plate, with the fact that the beam is brazed. As a result, the heat exchanger benefits from optimal thermal performance, linked to the brazed beam, and better resistance to thermal variation, linked to the connection between the beam and the plate collector plate. In addition, because the collector plate is not brazed, said collector plate may be of a smaller thickness and it is less necessary to strengthen the collector.

Selon un aspect de l'invention, au moins l'extrémité de chaque tube a une section oblongue.According to one aspect of the invention, at least the end of each tube has an oblong section.

Selon un autre aspect de l'invention, les extrémités des tubes comportent un premier évasement et une zone d'appui comprimant le joint d'étanchéité compressible.According to another aspect of the invention, the ends of the tubes comprise a first flare and a bearing zone compressing the compressible seal.

Selon un autre aspect de l'invention, les extrémités des tubes comportent en complément ou en alternative du premier évasement, au moins un deuxième évasement surmontant le joint d'étanchéité compressible. On comprendra donc que les extrémités des tubes peuvent comprendre indépendamment le premier évasement ou le deuxième évasement, ou encore le premier et le deuxième évasement.According to another aspect of the invention, the ends of the tubes comprise in addition or alternatively the first flare, at least a second flare overlying the compressible seal. It will therefore be understood that the ends of the tubes may comprise independently the first flare or the second flare, or the first and second flare.

Selon un autre aspect de l'invention, le deuxième évasement est réalisé sur une portion limitée des extrémités des tubes.According to another aspect of the invention, the second flare is made on a limited portion of the ends of the tubes.

Selon un autre aspect de l'invention, le taux de compression desdits deuxièmes collets est compris entre 10% et 50% et préférentiellement entre 25% et 35%.According to another aspect of the invention, the compression ratio of said second collars is between 10% and 50% and preferably between 25% and 35%.

L'invention concerne également un procédé de fabrication d'un échangeur de chaleur comme décrit précédemment et comprenant les étapes suivantes:

  1. a) assemblage d'un faisceau de tubes comportant une multiplicité de tubes disposés parallèlement les uns aux autres et des intercalaires disposés entre lesdits tubes,
  2. b) brasage des tubes avec les intercalaires,
  3. c) assemblage d'une plaque collectrice munie de trous bordés de premiers collets de section correspondant aux extrémités des tubes et équipée d'un joint d'étanchéité compressible formant des deuxièmes collets propres à être engagés respectivement au travers des trous,
  4. d) insertion des extrémités des tubes dans les trous de la plaque collectrice de sorte à comprimer les deuxièmes collets du joint d'étanchéité compressible.
The invention also relates to a method of manufacturing a heat exchanger as described above and comprising the following steps:
  1. a) assembling a bundle of tubes comprising a plurality of tubes arranged parallel to each other and spacers arranged between said tubes,
  2. b) brazing the tubes with the spacers,
  3. c) assembling a collector plate provided with holes lined with first collars of section corresponding to the ends of the tubes and equipped with a compressible seal forming second collars adapted to be engaged respectively through the holes,
  4. d) inserting the ends of the tubes into the holes of the header plate so as to compress the second collars of the compressible seal.

Selon un aspect du procédé selon l'invention, l'étape d) d'insertion des extrémités des tubes dans les trous de la plaque collectrice de sorte à comprimer les deuxièmes collets comprend une première sous-étape d'insertion des extrémités des tubes dans les trous de la plaque collectrice et une deuxième sous-étape de réalisation d'un premier évasement et d'une zone d'appuis au niveau des extrémités des tubes.According to one aspect of the method according to the invention, the step d) of inserting the ends of the tubes into the holes of the collector plate so as to compress the second collars comprises a first substep of insertion of the ends of the tubes into the holes of the collector plate and a second substep of producing a first flare and a bearing zone at the ends of the tubes.

Selon un autre aspect du procédé selon l'invention, l'étape d) d'insertion des extrémités des tubes dans les trous de la plaque collectrice de sorte à comprimer les deuxièmes collets est une étape d'insertion en force des extrémités des tubes dans les trous de la plaque collectrice, au moins lesdites extrémités ayant une taille supérieure à la taille des ouvertures des deuxièmes collets.According to another aspect of the method according to the invention, the step d) of inserting the ends of the tubes into the holes of the collector plate so as to compress the second collars is a step of insertion in force of the ends of the tubes in the holes of the header plate, at least said ends having a size greater than the size of the openings of the second collars.

Selon un autre aspect du procédé selon l'invention, le procédé comporte une étape supplémentaire de réalisation d'au moins un deuxième évasement des extrémités des tubes surmontant le joint d'étanchéité compressible.According to another aspect of the method according to the invention, the method comprises an additional step of producing at least a second flaring of the ends of the tubes overlying the compressible seal.

Selon un autre aspect du procédé selon l'invention, le deuxième évasement est réalisé sur une portion limitée des extrémités des tubes.According to another aspect of the method according to the invention, the second flare is made on a limited portion of the ends of the tubes.

D'autres caractéristiques et avantages de l'invention apparaîtront plus clairement à la lecture de la description suivante, donnée à titre d'exemple illustratif et non limitatif, et des dessins annexés parmi lesquels :

  • la figure 1 montre une représentation schématique en perspective d'un échangeur de chaleur,
  • la figure 2 montre une représentation schématique en perspective et en coupe d'un échangeur de chaleur,
  • la figure 3 montre une représentation schématique en coupe et éclatée d'une plaque collectrice,
  • la figure 3' montre une représentation schématique en coupe de la plaque collectrice de la figure 3,
  • la figure 4 montre une représentation schématique de la plaque collectrice de la figure 3 selon le plan de coup XX,
  • la figure 5 montre une représentation schématique en coupe d'un échangeur de chaleur selon un premier mode de réalisation,
  • les figures 6 à 8 montrent une représentation schématique en coupe d'un échangeur de chaleur selon un deuxième mode de réalisation au cour de différentes étapes de fabrication.
Other features and advantages of the invention will emerge more clearly on reading the following description, given by way of illustrative and nonlimiting example, and the appended drawings among which:
  • the figure 1 shows a schematic representation in perspective of a heat exchanger,
  • the figure 2 shows a schematic representation in perspective and in section of a heat exchanger,
  • the figure 3 shows a schematic representation in section and exploded of a collector plate,
  • the figure 3 ' shows a schematic representation in section of the collector plate of the figure 3 ,
  • the figure 4 shows a schematic representation of the collector plate of the figure 3 according to shot plan XX,
  • the figure 5 shows a schematic representation in section of a heat exchanger according to a first embodiment,
  • the Figures 6 to 8 show a schematic representation in section of a heat exchanger according to a second embodiment in the course of different manufacturing steps.

Les éléments identiques sur les différentes figures, portent les mêmes références.The identical elements in the different figures bear the same references.

Les réalisations suivantes sont des exemples. Bien que la description se réfère à un ou plusieurs modes de réalisation, ceci ne signifie pas nécessairement que chaque référence concerne le même mode de réalisation, ou que les caractéristiques s'appliquent seulement à un seul mode de réalisation. De simples caractéristiques de différents modes de réalisation peuvent également être combinées pour fournir d'autres réalisations.The following achievements are examples. Although the description refers to one or more embodiments, this does not necessarily mean that each reference relates to the same embodiment, or that the features apply only to a single embodiment. Simple features of different embodiments may also be combined to provide other embodiments.

Dans la présente description on peut indexer certains éléments ou paramètres, comme par exemple premier élément ou deuxième élément ainsi que premier paramètre et second paramètre ou encore premier critère et deuxième critère etc. Dans ce cas, il s'agit d'un simple indexage pour différencier et dénommer des éléments ou paramètres ou critères proches mais non identiques. Cette indexation n'implique pas une priorité d'un élément, paramètre ou critère par rapport à un autre et on peut aisément interchanger de telles dénominations sans sortir du cadre de la présente description. Cette indexation n'implique pas non plus un ordre dans le temps par exemple pour apprécier tel ou tels critères.In the present description, it is possible to index certain elements or parameters, for example first element or second element as well as first parameter and second parameter, or first criterion and second criterion, and so on. In this case, it is a simple indexing to differentiate and name elements or parameters or criteria close but not identical. This indexing does not imply a priority of one element, parameter or criterion with respect to another, and it is easy to interchange such denominations without departing from the scope of the present description. This indexing does not imply either an order in time for example to appreciate such or such criteria.

L'échangeur de chaleur 1 représenté aux figures 1 et 2, comprend un faisceau 2 formé d'une multiplicité de tubes 20 à l'intérieur desquels peut circuler un premier fluide caloporteur. Les tubes 20 sont disposés parallèlement entre eux et superposés. Entre les tubes 20, sont disposées des intercalaires 21 qui agissent comme perturbateur et augmentent la surface d'échange thermique avec un second fluide caloporteur passant entre lesdits tubes 20. Les tubes 20 et les intercalaires 21 sont réalisés dans des matériaux métalliques et sont brasés entre eux afin de former le faisceau 2. Le fait d'avoir un faisceau 2 brasé permet d'améliorer les performances thermiques, c'est à dire les échanges thermiques entre les deux fluides caloporteurs, par rapport à un faisceau assemblé mécaniquement. Comme le montrent les figures 1 et 2, les tubes 20 ont de préférence une forme oblongue et relativement plate. De plus les tubes 20 peuvent présenter en leur sein une entretoise 26 entre leurs parois internes. Cette entretoise 26 permet une bonne rigidité desdits tubes 20.The heat exchanger 1 shown in Figures 1 and 2 , comprises a beam 2 formed of a multiplicity of tubes 20 inside which can circulate a first heat transfer fluid. The tubes 20 are arranged parallel to each other and superposed. Between the tubes 20, there are spacers 21 which act as a disrupter and increase the heat exchange surface with a second heat transfer fluid passing between said tubes 20. The tubes 20 and the spacers 21 are made of metal materials and are brazed between they themselves in order to form the beam 2. The fact of having a brazed beam 2 makes it possible to improve the thermal performance, that is to say the heat exchange between the two heat transfer fluids, with respect to a mechanically assembled beam. As shown by Figures 1 and 2 the tubes 20 preferably have an oblong and relatively flat shape. In addition, the tubes 20 can present within them a spacer 26 between their inner walls. This spacer 26 allows good rigidity of said tubes 20.

L'échangeur de chaleur 1 comporte également deux collecteurs ou boites à eau disposés à chaque extrémités 22 des tubes 20. Ces collecteurs comportent une plaque collectrice 4 et un couvercle (non représenté) venant recouvrir ladite plaque collectrice 4 et refermer le collecteur. Ces collecteurs permettent la collecte et/ou la distribution du premier fluide caloporteur afin qu'il circule dans les tubes 20.The heat exchanger 1 also comprises two collectors or water boxes disposed at each end 22 of the tubes 20. These collectors comprise a header plate 4 and a cover (not shown) coming to cover said header plate 4 and close the collector. These collectors allow the collection and / or distribution of the first heat transfer fluid so that it circulates in the tubes 20.

Comme le montrent plus en détail la figure 3', la plaque collectrice 4 fait la liaison de façon étanche entre le collecteur et le faisceau 2 brasé. Ladite plaque collectrice 4 comprend une âme 40, pouvant être de forme générale rectangulaire, délimitant une multiplicité de trous 43, de section correspondante à la forme de la section des tubes 20 et propres à recevoir les extrémités 22 des tubes. Chaque trou 43 est bordé par un premier collet 44 dirigé vers l'intérieur du faisceau 2. Les trous 43 sont de taille similaire aux ouvertures des premiers collets 44. Les premiers collets 44 peuvent avantageusement venir de matière avec la plaque collectrice 4 et être par exemple formés en même temps que les trous 43 par emboutissage.As shown in more detail figure 3 ' , the manifold plate 4 makes the connection sealingly between the collector and the brazed beam 2. Said collector plate 4 comprises a core 40, which may be of generally rectangular shape, delimiting a multiplicity of holes 43, of section corresponding to the shape of the section of the tubes 20 and adapted to receive the ends 22 of the tubes. Each hole 43 is bordered by a first collar 44 directed towards the interior of the bundle 2. The holes 43 are of a size similar to the openings of the first collars 44. The first collars 44 may advantageously be integral with the collector plate 4 and be example formed at the same time as the holes 43 by stamping.

Comme les trous 43 et les premiers collets 44 ont une forme correspondante à celle de la section des tubes 20, ou du moins de leurs extrémités 22, et que cette forme est généralement oblongue, il est possible de caractériser lesdits trous 43 et premiers collets 44 selon deux axes de longueurs différentes. La longueur L1 correspond à la longueur la plus grande et peut correspondre à la largeur du trou 43 comme illustré aux figures 3, 3' et 5 à 8. La longueur l1 correspond quant à elle à la longueur la plus petite et peut correspondre à l'épaisseur du trou 43 comme illustré sur la figure 4. Pour permettre l'insertion des extrémités 22 des tubes 20 au sein des premiers collets 44 les longueurs L1 et l1 du trou 43 sont supérieures à celles des extrémités 22 des tubes 20. On parle ici de largeur et d'épaisseur des trous 43 en écho avec la largeur et l'épaisseur des tubes 20 qui sont destinés à être introduits dans lesdits trous 43.As the holes 43 and the first collars 44 have a shape corresponding to that of the section of the tubes 20, or at least their ends 22, and that this shape is generally oblong, it is possible to characterize said holes 43 and first collars 44 according to two axes of different lengths. The length L1 corresponds to the largest length and may correspond to the width of the hole 43 as illustrated in FIGS. Figures 3, 3 ' and 5 to 8 . The length l1 corresponds to the smallest length and may correspond to the thickness of the hole 43 as illustrated in FIG. figure 4 . To allow insertion of the ends 22 of the tubes 20 within the first collars 44, the lengths L1 and 11 of the hole 43 are greater than those of the ends 22 of the tubes 20. This is the width and thickness of the holes 43 echoing with the width and the thickness of the tubes 20 which are intended to be introduced into said holes 43.

L'âme 40 se prolonge par une gorge périphérique 42 se terminant par un rebord périphérique 46 formant des pattes rabattables. La gorge périphérique 42 est destinée à recevoir les rebords du couvercle et rebord périphérique 46 peut être rabattu pour fixer ledit couvercle sur la plaque collectrice 4.The core 40 is extended by a peripheral groove 42 ending in a peripheral flange 46 forming foldable legs. The peripheral groove 42 is intended to receive the rims of the cover and the peripheral rim 46 can be folded down to fix said cover on the collector plate 4.

La plaque collectrice 4 reçoit au moins un joint d'étanchéité compressible 41 pour permettre notamment l'étanchéité au niveau des trous 43.The header plate 4 receives at least one compressible sealing gasket 41, in particular to allow sealing at the holes 43.

Selon un premier mode de réalisation, illustré sur les figures 1 et 2, la plaque collectrice 4 peut ne comporter qu'un seul joint d'étanchéité compressible 41. Ce joint d'étanchéité compressible 41 comporte une âme venant s'appliquer sur l'âme 40 de la plaque collectrice 4. Cette âme du joint d'étanchéité compressible 41 est reliée a une multiplicité de deuxièmes collets 45 qui s'introduisent chacun dans un trou 43. A l'assemblage du faisceau 2 avec la plaque collectrice 4, les deuxièmes collets 45 sont comprimés entre les premiers collets 43 et les extrémités 22 pour assurer l'étanchéité entre lesdites extrémités 22 des tubes 20 et les premiers collets 43 correspondants. Le taux de compression des collets 45 est de 30%. Selon des variantes de l'invention, le taux est compris entre 10% et 50% et préférentiellement entre 25% et 35%. Par ailleurs, l'âme du joint d'étanchéité compressible 41 peut former à sa périphérie un bourrelet 47 disposé dans la gorge périphérique 42 et propre à assurer l'étanchéité avec le couvercle lorsque le rebord périphérique 46 est rabattu.According to a first embodiment, illustrated on the Figures 1 and 2 , the manifold plate 4 may have only one compressible seal 41. This compressible seal 41 comprises a core coming to apply on the core 40 of the header plate 4. This seal core compressible seal 41 is connected to a multiplicity of second collars 45 which are each introduced into a hole 43. At the assembly of the bundle 2 with the collector plate 4, the second collars 45 are compressed between the first collars 43 and the ends 22 to seal between said ends 22 of the tubes 20 and the corresponding first flanges 43. The compression ratio of the flanges 45 is 30%. According to variants of the invention, the level is between 10% and 50% and preferably between 25% and 35%. Furthermore, the core of the compressible seal 41 may form at its periphery a bead 47 disposed in the peripheral groove 42 and adapted to seal with the lid when the peripheral flange 46 is folded.

Selon un second mode de réalisation non représenté, la plaque collectrice 4 peut comporter une multitude de joints d'étanchéité compressibles 41 qui forment des collets 45 qui s'introduisent chacun dans un trou 43 pour assurer l'étanchéité entre l'extrémité 22 d'un tube 20 et le premier collet 43 correspondant. Dans ce mode de réalisation l'étanchéité avec le couvercle peut être réalisée par un joint d'étanchéité compressible indépendant et placé dans la gorge périphérique 42.According to a second embodiment not shown, the manifold plate 4 may comprise a plurality of compressible seals 41 which form flanges 45 which are each introduced into a hole 43 to seal between the end 22 of a tube 20 and the first collar 43 corresponding. In this embodiment the sealing with the lid can be achieved by an independent compressible seal and placed in the peripheral groove 42.

L'utilisation d'un joint d'étanchéité compressible 41 ou d'une multitude de joints d'étanchéité compressibles 41 pour réaliser la liaison entre le faisceau 2 et la plaque collectrice 4, permet une certaine souplesse qui peut absorber les dilatations et rétractions liées aux variations de température. La liaison entre le faisceau 2 et la plaque collectrice 4 est donc plus résistante à ces variations de température. Il y a un effet synergique entre la souplesse de la liaison entre le faisceau 2 et la plaque collectrice 4, avec le fait que le faisceau 2 soit brasé. De ce fait, l'échangeur thermique 1 bénéficie de performances thermiques optimales, liée au faisceau 2 brasé, et d'une meilleure résistance aux variations thermiques, liée à la liaison entre le faisceau 2 et la plaque collectrice 4. De plus, du fait que la plaque collectrice 4 n'est pas brasée, ladite plaque collectrice 4 peut être d'une épaisseur plus faible et il est moins nécessaire de renforcer le collecteur.The use of a compressible seal 41 or a multitude of compressible seals 41 to make the connection between the bundle 2 and the collector plate 4, allows a certain flexibility that can absorb the dilations and retractions related to temperature variations. The connection between the beam 2 and the collector plate 4 is therefore more resistant to these temperature variations. There is a synergistic effect between the flexibility of the connection between the beam 2 and the collector plate 4, with the fact that the beam 2 is brazed. As a result, the heat exchanger 1 benefits from optimal thermal performance, linked to the brazed beam 2, and better resistance to thermal variations, linked to the connection between the beam 2 and the collecting plate 4. Moreover, because of the that the collector plate 4 is not brazed, said collector plate 4 may be of a smaller thickness and it is less necessary to strengthen the collector.

Les deuxièmes collets 45 ont également une forme correspondante à celle de la section des tubes 20, ou du moins de leurs extrémités 22. Il est donc également possible de caractériser lesdits deuxièmes collets 45 selon deux axes de longueurs différentes. La longueur L2 correspond à la largeur de l'ouverture du deuxième collet 45 lorsque le joint d'étanchéité compressible 41 n'est pas comprimé, comme cela est représenté aux figures 3, 3', 4 et 6. La longueur l2 correspond à l'épaisseur de l'ouverture du deuxième collet 45 lorsque le joint d'étanchéité compressible 41 n'est pas comprimé, comme cela est représenté à la figure 4. A l'état comprimé, l'ouverture du deuxième collet 45 à au moins une de ces longueurs (largeur et/ou épaisseur) qui augmente, par exemple comme cela est montré aux figures 5, 7 et 8 où la largeur de l'ouverture du joint d'étanchéité compressible 45 est plus importante et correspond à une longueur L2'. De même que précédemment, on parle ici de largeur et d'épaisseur des ouvertures des deuxièmes collets 45 en écho avec la largeur et l'épaisseur des tubes 20 qui sont destinés à être introduits dans lesdites ouvertures des deuxièmes collets 45.The second collars 45 also have a shape corresponding to that of the section of the tubes 20, or at least their ends 22. It is therefore also possible to characterize said second collars 45 along two axes of different lengths. The length L2 corresponds to the width of the opening of the second collar 45 when the compressible seal 41 is not compressed, as shown in FIGS. Figures 3, 3 ', 4 and 6 . The length 12 corresponds to the thickness of the opening of the second collar 45 when the compressible seal 41 is not compressed, as shown in FIG. figure 4 . In the compressed state, the opening of the second collar 45 to at least one of these lengths (width and / or thickness) which increases, for example as shown in FIGS. figures 5 , 7 and 8 where the width of the opening of the compressible seal 45 is larger and corresponds to a length L2 '. As before, we are talking here about width and thickness of the openings of the second flanges 45 echoing with the width and thickness of the tubes 20 which are intended to be introduced into said openings of the second flanges 45.

Les extrémités 22 des tubes 20 ont une taille supérieure à celle des ouvertures des deuxièmes collets 45 mais inférieure à celle des trous 43 afin de comprimer le joint d'étanchéité compressible 41 au niveau des deuxièmes collets 45. Par taille supérieure ou inférieure, on entend qu'au moins la largeur et/ou l'épaisseur diffèrent entre les tubes 20 et les trous 43 ou les ouvertures des deuxièmes collets 45.The ends 22 of the tubes 20 have a size greater than that of the openings of the second collars 45 but less than that of the holes 43 in order to compress the compressible seal 41 at the level of the second collars 45. By larger or smaller size is meant at least the width and / or the thickness differ between the tubes 20 and the holes 43 or the openings of the second collars 45.

Comme cela est représenté sur la figure 5, le corps d'un tube 20 et son extrémité 22 peuvent avoir une largeur et une épaisseur identiques, c'est-à-dire que la taille (largeur et épaisseur) du tube 20 est constante au sein du faisceau 2. Le joint d'étanchéité compressible 41 est comprimé car la largeur et l'épaisseur du tube 20 dans son ensemble est supérieure à celle des ouvertures des deuxièmes collets 45 et inférieure à celle des trous 43.As shown on the figure 5 the body of a tube 20 and its end 22 may be of identical width and thickness, that is to say that the size (width and thickness) of the tube 20 is constant within the bundle 2. compressible seal 41 is compressed because the width and thickness of the tube 20 as a whole is greater than that of the openings of the second collars 45 and smaller than that of the holes 43.

A contrario et comme cela est représenté sur les figures 7 et 8, le corps d'un tube 20 et son extrémité 22 peuvent avoir une largeur et/ou une épaisseur qui diffère. L'extrémité 22 peut présenter un évasement d'étanchéité 23 que l'on nommera dans la suite premier évasement 23 du côté intérieur du faisceau 2 et qui augmente la largeur et/ou l'épaisseur de ladite extrémité 22. L'extrémité 22 comporte également une zone d'appui 24 qui est plus large et/ou épaisse que le reste du corps du tube 20 du fait du premier évasement 23 et qui comprime le joint d'étanchéité compressible 41.On the contrary and as shown on the Figures 7 and 8 the body of a tube 20 and its end 22 may have a width and / or a thickness which differs. The end 22 may have a sealing flange 23 which will be named in the following first flare 23 on the inside of the beam 2 and which increases the width and / or the thickness of said end 22. The end 22 comprises also a bearing zone 24 which is wider and / or thicker than the rest of the body of the tube 20 because of the first flaring 23 and which compresses the compressible seal 41.

Les extrémités 22 des tubes 20 peuvent également comporter, en alternative ou en complément du premier évasement 23, au moins un deuxième évasement 25 - qui est un évasement de retenue permettant un verrouillage mécanique - du côté extérieur du faisceau 2 et qui surmonte le joint d'étanchéité compressible 41 comme cela est illustré aux figures 1, 2 et 8. Ce deuxième évasement 25 peut notamment être réalisé sur une portion limitée des extrémités 22 des tubes 20. Ce deuxième évasement 25 permet notamment le blocage et le maintien en place de la plaque collectrice 4 sur le faisceau 2. Dans l'exemple présenté aux figures 1 et 2, les extrémités 22 des tubes 20 comportent chacune deux deuxièmes évasements 25 réalisés sur une portion limitée. Les premier 23 et deuxième 25 évasements des extrémités 22 sont situés de part et d'autre de la plaque collectrice 4.The ends 22 of the tubes 20 may also comprise, alternatively or in addition to the first flare 23, at least one second flare 25 - which is a retaining flare allowing mechanical locking - on the outside of the beam 2 and which overcomes the gasket. compressible seal 41 as shown in FIGS. Figures 1, 2 and 8 . This second flaring 25 may in particular be made on a limited portion of the ends 22 of the tubes 20. This second flaring 25 allows in particular the locking and holding in place of the manifold plate 4 on the beam 2. In the example presented to Figures 1 and 2 the ends 22 of the tubes 20 each comprise two second flares 25 made on a limited portion. The first 23 and second 25 flares of the ends 22 are located on either side of the collector plate 4.

La présente invention concerne également un procédé de fabrication d'un échangeur de chaleur 1 comme décrit précédemment et comprenant les étapes suivantes:

  1. a) assemblage d'un faisceau 2 de tubes comportant une multiplicité de tubes 20 disposés parallèlement les uns des autres et des intercalaires 21 disposées entre lesdits tubes 20,
  2. b) brasage des tubes 20 avec les intercalaires 21,
  3. c) assemblage d'une plaque collectrice 4 munie de trous 43 formant des premiers collets 44 de section correspondant aux extrémités 22 des tubes 20 et équipée d'un joint d'étanchéité compressible 41 formant des deuxièmes collets 45 propres à être engagés respectivement au travers des trous 43,
  4. d) insertion des extrémités 22 des tubes 20 dans les trous 43 de la plaque collectrice 4 de sorte à comprimer les deuxièmes collets 45 du joint d'étanchéité compressible 41.
The present invention also relates to a method of manufacturing a heat exchanger 1 as previously described and comprising the following steps:
  1. a) assembly of a bundle 2 of tubes comprising a plurality of tubes 20 arranged parallel to each other and spacers 21 arranged between said tubes 20,
  2. b) brazing the tubes 20 with the inserts 21,
  3. c) assembly of a collector plate 4 provided with holes 43 forming first collars 44 of section corresponding to the ends 22 of the tubes 20 and equipped with a compressible seal 41 forming second collars 45 able to be engaged respectively through holes 43,
  4. d) insertion of the ends 22 of the tubes 20 in the holes 43 of the header plate 4 so as to compress the second collars 45 of the compressible seal 41.

Selon un mode de réalisation, et notamment lorsque la taille de l'extrémité 22 des tubes 20 est inférieure ou égale à la taille de l'ouverture du deuxième collet 45, cette dernière étape d) peut comprendre une première sous-étape d'insertion des extrémités 22 des tubes 20 dans les trous 43 de la plaque collectrice 4 et une deuxième sous-étape de réalisation d'un premier évasement 23 et de la zone d'appui 24 au niveau des extrémités 22 des tubes 20. Cette première sous-étape est illustrée à la figure 6 et l'insertion est ainsi facile à réaliser car l'extrémité 22 du tube 20 a une taille inférieure ou égale à l'ouverture du deuxième collet 45 et la compression du joint d'étanchéité compressible 41 est réalisée par la formation du premier évasement 23 et de la zone d'appui 24, comme illustré aux figures 7 et 8. Ce premier évasement 23 et la zone d'appui 24 peuvent par exemple être réalisés à l'aide d'un poinçon de forme correspondante à celle des extrémités 22 tubes 20.According to one embodiment, and especially when the size of the end 22 of the tubes 20 is less than or equal to the size of the opening of the second collar 45, this last step d) may comprise a first insertion sub-step ends 22 of the tubes 20 in the holes 43 of the header plate 4 and a second substep of producing a first flare 23 and the bearing zone 24 at the ends 22 of the tubes 20. step is illustrated at the figure 6 and the insertion is thus easy to achieve because the end 22 of the tube 20 has a size less than or equal to the opening of the second flange 45 and the compression of the compressible seal 41 is formed by the formation of the first flare 23 and the support zone 24, as illustrated in Figures 7 and 8 . This first flaring 23 and the bearing zone 24 may for example be made using a punch of shape corresponding to that of the ends 22 tubes 20.

Selon un autre mode de réalisation, l'étape d) d'insertion des extrémités 22 des tubes 20 dans les trous 43 de la plaque collectrice 4 de sorte à comprimer les deuxièmes collets 45 du joint d'étanchéité compressible 41 peut être une étape d'insertion en force des extrémités 22 des tubes 20 dans les trous 43 de la plaque collectrice 4. Pour que le joint d'étanchéité compressible 41 soit comprimé, au moins les extrémités 22 des tubes 20 ont une taille supérieure à celle des ouvertures des deuxièmes collets 45, que cela soit par une taille supérieure en général de l'ensemble du tube 20, comme illustré à la figure 6, ou alors par le fait d'un premier évasement 23 et d'une zone d'appui 24, comme illustré aux figures 7 et 8, réalisé au préalable sur les extrémités 22 des tubes 20.According to another embodiment, the step d) of inserting the ends 22 of the tubes 20 into the holes 43 of the header plate 4 so as to compress the second collars 45 of the compressible seal 41 may be a step of insertion of the ends 22 of the tubes 20 into the holes 43 of the header plate 4. In order for the compressible seal 41 to be compressed, at least the ends 22 of the tubes 20 have a larger size than the openings of the second 45, that this is a larger size in general of the entire tube 20, as shown in the figure 6 , or else by the fact of a first flare 23 and a support zone 24, as illustrated in FIGS. Figures 7 and 8 , made beforehand on the ends 22 of the tubes 20.

Le procédé de fabrication peut également comporter une étape supplémentaire de réalisation d'au moins un deuxième évasement 25 surmontant le joint d'étanchéité compressible 41 comme illustré aux figures 1, 2 et 8. Ce deuxième évasement 25 peut être réalisé sur une portion limitée des extrémités 22 des tubes 20.The manufacturing method may also comprise an additional step of producing at least a second flaring 25 overlying the compressible seal 41 as illustrated in FIGS. Figures 1, 2 and 8 . This second flare 25 can be made on a limited portion of the ends 22 of the tubes 20.

Ainsi, on voit bien que l'échangeur thermique 1 selon l'invention, bénéficie de performances thermiques optimales, liée au faisceau 2 brasé, et d'une meilleure résistance aux variations thermiques, liée à la liaison mécanique entre le faisceau 2 et la plaque collectrice 4.Thus, it can clearly be seen that the heat exchanger 1 according to the invention benefits from optimum thermal performance, linked to the brazed beam 2, and better resistance to thermal variations, linked to the mechanical connection between the beam 2 and the plate. collector 4.

Claims (11)

  1. Heat exchanger (1) comprising:
    o a tube bundle (2) comprising a plurality of tubes (20) arranged parallel to each other and spacers (21) arranged between said tubes (20),
    o a collector plate (4) comprising holes (43) respectively bordered by first flanges (44) into which ends (22) of the tubes (20) are inserted,
    the tube bundle (2) being brazed and characterized in that the collector plate (4) comprises at least one compressible seal (41) forming second flanges (45), the second flanges (45) being compressed between the first flanges (43) and the ends (22) of the tubes (20) in order to provide a tight seal between said ends (22) of the tubes (20) and the corresponding first flanges (43) .
  2. Heat exchanger (1) according to Claim 1, characterized in that at least the end (22) of each tube (20) has an oblong cross section.
  3. Heat exchanger (1) according to one of the previous claims, characterized in that the ends (22) of the tubes (20) comprise a first flaring (23) and a bearing area (24) compressing the compressible seal (41).
  4. Heat exchanger (1) according to one of the previous claims, characterized in that the ends (22) of the tubes (20) comprise at least one second flaring (25) extending above the compressible seal (41).
  5. Heat exchanger (1) according to the previous claim, characterized in that the second flaring (25) is produced over a limited portion of the ends (22) of the tubes (20).
  6. Heat exchanger (1) according to any one of the previous claims, characterized in that the rate of compression of said second flanges is between 10% and 50% and preferably between 25% and 35%.
  7. Method for producing a heat exchanger (1) according to one of Claims 1 to 6, characterized in that it comprises the following steps:
    a) assembling a tube bundle (2) comprising a plurality of tubes (20) arranged parallel to each other and spacers (21) arranged between said tubes (20),
    b) brazing the tubes (20) to the spacers (21),
    c) assembling a collector plate (4) provided with holes (43) bordered by first flanges (44) with a cross section corresponding to the ends (22) of the tubes (20) and equipped with a compressible seal (41) forming second flanges (45) suitable for being engaged respectively through the holes (43),
    d) inserting the ends (22) of the tubes (20) into the holes (43) of the collector plate (4) so as to compress the second flanges (45) of the compressible seal (41).
  8. Method according to Claim 7, characterized in that the step d) of inserting the ends (22) of the tubes (20) into the holes (43) of the collector plate (4) so as to compress the second flanges (45) comprises a first sub-step of inserting the ends (22) of the tubes (20) into the holes (43) of the collector plate (4) and a second sub-step of producing a first flaring (23) and a bearing area (24) at the ends (22) of the tubes (20).
  9. Method according to Claim 7, characterized in that the step d) of inserting the ends (22) of the tubes (20) into the holes (43) of the collector plate (4) so as to compress the second flanges (45) is a step of press-fitting the ends (22) of the tubes (20) into the holes (43) of the collector plate (4), at least said ends (22) being larger in size than the openings of the second flanges (45).
  10. Method according to one of Claims 7 to 9, characterized in that it comprises an additional step of producing at least one second flaring (25) at the ends (22) of the tubes (20) extending above the compressible seal (41).
  11. Method according to the previous claim, characterized in that the second flaring (25) is produced over a limited portion of the ends (22) of the tubes (20).
EP16730427.8A 2015-06-22 2016-06-22 Heat exchanger and associated method for producing same Active EP3311095B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16730427T PL3311095T3 (en) 2015-06-22 2016-06-22 Heat exchanger and associated method for producing same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1555677A FR3037643B1 (en) 2015-06-22 2015-06-22 HEAT EXCHANGER AND METHOD FOR MANUFACTURING THE SAME
PCT/EP2016/064340 WO2016207177A1 (en) 2015-06-22 2016-06-22 Heat exchanger and associated method for producing same

Publications (2)

Publication Number Publication Date
EP3311095A1 EP3311095A1 (en) 2018-04-25
EP3311095B1 true EP3311095B1 (en) 2019-04-17

Family

ID=54329674

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16730427.8A Active EP3311095B1 (en) 2015-06-22 2016-06-22 Heat exchanger and associated method for producing same

Country Status (8)

Country Link
US (1) US20180187985A1 (en)
EP (1) EP3311095B1 (en)
JP (1) JP2018518649A (en)
KR (1) KR20180020236A (en)
CN (1) CN107810378A (en)
FR (1) FR3037643B1 (en)
PL (1) PL3311095T3 (en)
WO (1) WO2016207177A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3067102B1 (en) * 2017-05-31 2019-06-14 Valeo Systemes Thermiques PROCESS FOR PRODUCING A HEAT EXCHANGER
DE102018111585A1 (en) * 2017-06-22 2018-12-27 Hanon Systems Heat transfer device and method of manufacturing the device
DE102018111556A1 (en) * 2017-06-22 2018-12-27 Hanon Systems Heat exchanger
DE102018208473B4 (en) * 2018-05-29 2022-09-15 Hanon Systems Heat exchanger and method for producing a heat exchanger
FR3084738B1 (en) * 2018-07-31 2020-11-27 Valeo Systemes Thermiques HEAT EXCHANGER WITH GASKET WITH AT LEAST ONE RECESS ZONE
DK3745070T3 (en) 2019-05-29 2021-08-30 Ovh HEAT EXCHANGER DEVICE AND METHOD FOR ASSEMBLING IT
EP3745067B1 (en) 2019-05-29 2021-04-21 Ovh Heat exchanger assembly
DE102019123415B4 (en) * 2019-09-02 2022-11-03 Hanon Systems Coolant-air heat exchanger

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54159455U (en) * 1978-04-28 1979-11-07
JPS54159455A (en) * 1978-06-06 1979-12-17 Sumitomo Chem Co Ltd Dyeable polyolefin composition
DE3050857C2 (en) * 1979-07-26 1994-11-10 Valeo Heat exchanger
FR2462215A1 (en) * 1979-07-26 1981-02-13 Ferodo Sa METHOD FOR CONFORMING A TUBE ESPECIALLY FOR HEAT EXCHANGER AND HEAT EXCHANGER WITH TUBES SO COMPLIANT
FR2467374A1 (en) * 1979-10-12 1981-04-17 Ferodo Sa SEALED ASSEMBLY DEVICE BETWEEN A COLLECTOR AND A HEAT EXCHANGER WATER BOX
FR2475709B1 (en) * 1980-02-08 1985-12-06 Chausson Usines Sa TUBE FOR HEAT EXCHANGER AND EXCHANGER WITH COLLECTING PLATE AND MECHANICAL ASSEMBLY COMPRISING SUCH TUBE
JPS5929994A (en) * 1982-08-11 1984-02-17 Ntn Toyo Bearing Co Ltd Heat exchanger
DE3730117C1 (en) * 1987-09-08 1988-06-01 Norsk Hydro As Method for producing a heat exchanger, in particular a motor vehicle radiator and tube profile for use in such a method
DE4212717A1 (en) * 1992-04-16 1993-10-21 Laengerer & Reich Gmbh & Co Heat exchanger
FR2690515A1 (en) * 1992-04-24 1993-10-29 Valeo Thermique Moteur Sa Heat exchanger with oblong section tubes, in particular for motor vehicles.
FR2693545B1 (en) * 1992-07-08 1994-09-30 Valeo Thermique Moteur Sa Heat exchanger with several rows of tubes, in particular for motor vehicles.
FR2693546B1 (en) * 1992-07-09 1994-09-30 Valeo Thermique Moteur Sa Heat exchanger with a parallel tube bundle, in particular for a motor vehicle.
FR2696534B1 (en) * 1992-10-02 1994-12-02 Valeo Thermique Moteur Sa Tube heat exchanger fitted with a flare.
FR2705143B1 (en) * 1993-05-11 1995-06-23 Valeo Thermique Moteur Sa HEAT EXCHANGER IN PARTICULAR FOR A MOTOR VEHICLE.
CN1095022A (en) * 1994-05-10 1994-11-16 瓦莱奥热舱公司 The heat exchanger that is used for automobile
US5511613A (en) * 1994-12-12 1996-04-30 Hudson Products Corporation Elongated heat exchanger tubes having internal stiffening structure
US7234511B1 (en) * 1995-06-13 2007-06-26 Philip George Lesage Modular heat exchanger having a brazed core and method for forming
FR2740869B1 (en) * 1995-11-02 1997-12-19 Valeo Thermique Moteur Sa HEAT EXCHANGER WITH TUBES OF OVAL OR OBLONG SECTION AND ITS ASSEMBLY METHOD
SE513642C2 (en) * 1996-03-29 2000-10-16 Valeo Engine Cooling Ab Heat exchanger and methods of making such
FR2749648B1 (en) * 1996-06-05 1998-09-04 Valeo Thermique Moteur Sa FLAT TUBE WITH MEDIUM SPACER FOR HEAT EXCHANGER
US6082446A (en) * 1998-04-20 2000-07-04 Ahaus Tool And Engineering, Inc. Sealing method and apparatus for a heat exchanger
FR2783907B1 (en) * 1998-09-25 2000-12-22 Valeo Thermique Moteur Sa REDUCED HEAT EXCHANGER, PARTICULARLY FOR A MOTOR VEHICLE
JP3905278B2 (en) * 1999-02-23 2007-04-18 カルソニックカンセイ株式会社 Mounting structure of tube to header member in heat exchanger tube mouth claw and heat exchanger
US6247232B1 (en) * 1999-03-10 2001-06-19 Transpro, Inc. Method of manufacturing a welded heat exchanger with grommet construction
US6786275B2 (en) * 2002-05-23 2004-09-07 Valeo Engine Cooling Heat exchanger header assembly
DE102006021763A1 (en) * 2005-05-11 2007-05-24 Denso Corp., Kariya Soldered structure and method for producing the same
JP2007198623A (en) * 2006-01-24 2007-08-09 Denso Corp Heat exchanger
FR2958385B1 (en) * 2010-03-31 2013-01-18 Valeo Systemes Thermiques HEAT EXCHANGER WITH INCREASED PERFORMANCE
DE102011085479A1 (en) * 2011-10-28 2013-05-02 Behr Gmbh & Co. Kg Heat exchanger

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
FR3037643A1 (en) 2016-12-23
PL3311095T3 (en) 2019-10-31
WO2016207177A1 (en) 2016-12-29
JP2018518649A (en) 2018-07-12
CN107810378A (en) 2018-03-16
EP3311095A1 (en) 2018-04-25
US20180187985A1 (en) 2018-07-05
KR20180020236A (en) 2018-02-27
FR3037643B1 (en) 2019-07-12

Similar Documents

Publication Publication Date Title
EP3311095B1 (en) Heat exchanger and associated method for producing same
EP0505244B1 (en) Heat exchanger with tube bundle, more particularly for motor vehicle
FR3056736B1 (en) THERMAL EXCHANGE BEAM FOR THERMAL EXCHANGER, THERMAL EXCHANGER AND ASSOCIATED ASSEMBLY METHOD
FR3056734B1 (en) THERMAL EXCHANGER, IN PARTICULAR FOR MOTOR VEHICLE
WO2018060622A1 (en) Heat exchanger and associated manufacturing method
FR3059090B1 (en) COLLECTOR BOX AND THERMAL EXCHANGER CORRESPONDING
WO2019229369A1 (en) Header tank and corresponding heat exchanger
EP3555545A1 (en) Heat exchanger with reinforcing plate
EP3577408B1 (en) Heat exchanger header
WO2018060624A1 (en) Collector box, heat exchanger and corresponding assembly method
WO2015007551A1 (en) Manifold collector plate for a heat exchanger
FR3060727B1 (en) HEAT EXCHANGER WITH IMPROVED COLLECTOR PLATE.
WO2018060625A1 (en) Heat exchanger, in particular for a motor vehicle
FR3067102B1 (en) PROCESS FOR PRODUCING A HEAT EXCHANGER
FR3082929A1 (en) COLLECTOR BOX AND CORRESPONDING HEAT EXCHANGER
WO2018154227A1 (en) Brazed heat exchanger and associated manufacturing method
FR2868522A1 (en) Heat exchange module for motor vehicle, has secondary heat exchanger having collecting case soldered with tube bundle, while main heat exchanger has collection plate soldered with another tube bundle and cover
WO2018060621A1 (en) Heat exchanger, in particular for a motor vehicle
WO2008098633A1 (en) Manifold plate for high-pressure fluid-flow heat exchangers
FR3069312B1 (en) HEAT EXCHANGER FOR EXHAUST AIR COOLER
WO2018060650A1 (en) Collector plate, heat exchanger and associated production method
EP1548385A2 (en) Heat exchange tube with two flow passages and heat exchanger provided with such tubes
EP3519757A1 (en) Heat exchanger and associated manufacturing method
FR3069630A1 (en) COLLECTOR BOX FOR HEAT EXCHANGER AND ASSOCIATED HEAT EXCHANGER
EP3566015A1 (en) Heat exchanger collector box, in particular for a motor vehicle, heat exchanger and corresponding manufacturing method

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

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

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20171121

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20181031

RIN1 Information on inventor provided before grant (corrected)

Inventor name: AZZOUZ, KAMEL

Inventor name: BOISSELLE, PATRICK

Inventor name: MARCHADIER, XAVIER

Inventor name: BRY, SAMUEL

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

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: DE

Ref legal event code: R096

Ref document number: 602016012600

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1122022

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190515

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20190417

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

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

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: 20190417

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

Ref country code: HR

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: 20190417

Ref country code: LT

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: 20190417

Ref country code: ES

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: 20190417

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: 20190417

Ref country code: AL

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: 20190417

Ref country code: NO

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: 20190717

Ref country code: PT

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: 20190817

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: 20190417

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

Ref country code: BG

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: 20190717

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: 20190718

Ref country code: LV

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: 20190417

Ref country code: RS

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: 20190417

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1122022

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190417

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

Ref country code: IS

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: 20190817

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602016012600

Country of ref document: DE

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

Ref country code: EE

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: 20190417

Ref country code: SK

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: 20190417

Ref country code: RO

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: 20190417

Ref country code: MC

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: 20190417

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: 20190417

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: 20190417

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

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

Ref country code: SM

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: 20190417

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

Effective date: 20190417

26N No opposition filed

Effective date: 20200120

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20190630

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

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: 20190417

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

Ref country code: IE

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

Effective date: 20190622

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: 20190630

Ref country code: LU

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

Effective date: 20190622

Ref country code: BE

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

Effective date: 20190630

Ref country code: SI

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: 20190417

Ref country code: LI

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

Effective date: 20190630

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20200622

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

Ref country code: GB

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

Effective date: 20200622

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

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: 20190417

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

Ref country code: HU

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

Effective date: 20160622

Ref country code: MT

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: 20190417

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

Ref country code: MK

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: 20190417

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230528

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

Ref country code: FR

Payment date: 20230622

Year of fee payment: 8

Ref country code: DE

Payment date: 20230613

Year of fee payment: 8

Ref country code: CZ

Payment date: 20230524

Year of fee payment: 8

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

Ref country code: PL

Payment date: 20230530

Year of fee payment: 8