EP2084388B1 - Egr/by pass valve unit and heat exchanger device provided with such a valve unit - Google Patents

Egr/by pass valve unit and heat exchanger device provided with such a valve unit Download PDF

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Publication number
EP2084388B1
EP2084388B1 EP07858454.7A EP07858454A EP2084388B1 EP 2084388 B1 EP2084388 B1 EP 2084388B1 EP 07858454 A EP07858454 A EP 07858454A EP 2084388 B1 EP2084388 B1 EP 2084388B1
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EP
European Patent Office
Prior art keywords
duct
flap
exchanger
valve assembly
seat
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
EP07858454.7A
Other languages
German (de)
French (fr)
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EP2084388A1 (en
Inventor
Laurent Albert
Olivier Delgarde
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 de Controle Moteur SAS
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Valeo Systemes de Controle Moteur SAS
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Priority claimed from FR0609479A external-priority patent/FR2907885B1/en
Application filed by Valeo Systemes de Controle Moteur SAS filed Critical Valeo Systemes de Controle Moteur SAS
Publication of EP2084388A1 publication Critical patent/EP2084388A1/en
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Publication of EP2084388B1 publication Critical patent/EP2084388B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0008—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one medium being in heat conductive contact with the conduits for the other medium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/23—Layout, e.g. schematics
    • F02M26/25—Layout, e.g. schematics with coolers having bypasses
    • F02M26/26—Layout, e.g. schematics with coolers having bypasses characterised by details of the bypass valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
    • F02M26/30—Connections of coolers to other devices, e.g. to valves, heaters, compressors or filters; Coolers characterised by their location on the engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
    • F02M26/32—Liquid-cooled heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/51—EGR valves combined with other devices, e.g. with intake valves or compressors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/65—Constructional details of EGR valves
    • F02M26/66—Lift valves, e.g. poppet valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0082—Charged air coolers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/06—Derivation channels, e.g. bypass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/16—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes extruded

Definitions

  • the present invention relates to fluid transport circuits such as those used in motor vehicles, in particular for recirculating the exhaust gases of the combustion engines of these vehicles. It relates in particular to a valve assembly according to the preamble of claim 1. Such an assembly is known for example from the figure 1 of the document DE 103 46 250 A1 .
  • An exhaust gas recirculation circuit of the engine of a motor vehicle (commonly known as EGR for "Exhaust Gas Recirculation”) extends between the exhaust system and the intake circuit of the engine and conventionally comprises a heat exchanger for cooling the exhaust gas, an uncooled bypass channel, a bypass valve for selectively directing the gas flow into the heat exchanger or the bypass duct, and a control valve for adjusting the flow rate of the gas flow in the recirculation circuit.
  • An object of the invention is to provide a means for solving at least one of the aforementioned drawbacks.
  • the valve assembly comprises a body with a movable valve and a flange for attaching the body to an exchanger.
  • the flange not only provides this function of connecting the body with the exchanger, but also a flap support function.
  • the valve assembly thus incorporates in a compact structure a valve, a flap and a mounting flange of the assembly on the exchanger.
  • the body and the flange comprise seat surfaces for the flap when the flap is in at least one of its positions.
  • the body and the flange both have surfaces forming a seat for the flap, which limits the size of the flange and bring the body of the exchanger.
  • the invention also relates to a heat exchange device comprising an exchanger and such a valve assembly.
  • the invention is here described in application to a recirculation circuit of the exhaust gas of a motor vehicle engine.
  • the recirculation circuit is provided with means of its connection on the one hand to the exhaust circuit of the engine and on the other hand to the intake circuit of the engine.
  • the operating principle of such a recirculation circuit is known in itself and will not be detailed below.
  • the exhaust gas recirculation circuit comprises a heat exchange device comprising a heat exchanger, generally designated 1, associated with a valve assembly, generally designated 2.
  • the heat exchanger 1 comprises a body generally designated 3, comprising an outer casing 4, of tubular shape, having open ends 4.1, 4.2.
  • the outer casing 4 here has a parallelepipedal shape and comprises walls 4.3, 4.4, 4.5 and 4.6 parallel and opposite two by two.
  • two central partitions 5 extend parallel to each other and to a longitudinal axis 6 of the outer casing 4.
  • the central partitions 5 have opposite longitudinal edges connected to the walls 4.3, 4.4 so as to define with the central channel 7 comprises enlarged portions 7.1, 7.2 in the vicinity of the walls 4.3, 4.4 so that the central channel 7 has a cross-section here in the form of I.
  • the portions 7.1, 7.2 communicate with each other. the outside of the outer casing 4 by openings 8.1, 8.2 formed respectively in the walls 4.3, 4.4 in the vicinity of the ends 4.1, 4.2 of the outer casing 4.
  • partitions 9 peripheral devices extend parallel to each other and the longitudinal axis 6.
  • the peripheral partitions 9 extend on either side of the central channel 7 and have opposite longitudinal edges respectively connected to the walls 4.5, 4.6 and central partitions 5 so as to define therewith peripheral channels 10.
  • the peripheral channels 10 here have a rectangular cross section.
  • the central channel 7 has a section greater than that of the peripheral channels 10.
  • the body 3 is made of aluminum by extrusion so that at the outlet of the extruder, the channels 7 and 10 have open ends. Extrusion manufacturing makes it possible to obtain a one-piece body, which limits assembly operations and minimizes manufacturing costs.
  • the body 3 may also be made of a metal other than aluminum and more generally any material having sufficient thermal conduction properties.
  • These members comprise two closure elements 11, 12 fixed by welding at the ends of the central channel 7, respectively on the end-end 4.1 and end-4.2 side of the outer casing 4.
  • These members also comprise a return element 13 which has the shape of a cap having a cylindrical segment bottom wall with an axis perpendicular to the walls 4.5, 4.6 and which is fixed on the end 4.2 of the casing 4.
  • L return element 13 makes it possible to send a flux coming from some of the peripheral channels 10, in this case those identified 10.a extending in the upper half of the outer envelope 4, towards the other peripheral channels 10, c ' that is to say those identified 10.b extending into the lower half of the outer envelope 4 (see more particularly the figures 5 and 6 ).
  • These members further comprise a connecting member of the ends of the peripheral channels 10, located on the side of the end 4.1, to fluid supply and discharge conduits.
  • This connecting element is here formed by the valve assembly 2.
  • the valve assembly 2 comprises a valve body 21 having an end portion arranged to form a manifold 22 and an end portion 23 delimiting a first conduit 24 opening into the manifold 22 by a seat 25 for a valve 26 mounted movable in the manifold 22 between an extreme position of closure and an extreme open position of the first conduit 24.
  • the end portion 23 is provided with means for connecting the first conduit 24 to an external pipe.
  • the collector 22 extends the first conduit 24 and here forms a flared end thereof.
  • the valve 26 is connected to the rod of an actuator 27 mounted outside the valve body 21 on the side of its end portion 23.
  • the actuator 27, known in itself, is arranged to slide in such a way that adjustable valve 26 between its two positions.
  • the collector 22 also defines a second duct 28 opening into the collector 22 on the side of the wall 4.3 and perpendicular to the longitudinal axis 6.
  • the second duct 28 is an inlet duct for a gas flow in the valve assembly 2 and the first duct 24 is an outlet duct of the gas stream of the valve assembly 2.
  • the second duct 28 is thus intended to be connected to the exhaust circuit of the heat engine and the first duct 24 is intended to be connected to the intake duct of the engine.
  • the collector 22 is fitted between two flanges 31 of a flange, generally designated 30, fitted and fixed by welding on the end 4.1 of the envelope 4.
  • the wings 31 are parallel to the walls 4.5, 4.6 of the outer casing 4 and are provided with bearings pivotally receiving an axis 32 of a double flap, generally designated 33, having two parts of flap 33.1, 33.2 s extending in the extension of one another on either side of the axis 32.
  • the flange 30 and the flap 33 define an inlet opening 34 in the exchanger 1 facing the peripheral channels 10.a and an outlet opening 35 of the exchanger 1 opposite the peripheral channels 10.b.
  • the flap 33 is mounted facing the second duct 28 and the opening 34 and is movable between a bypass position ( figure 3 ) in which the flap 33 deflects a gas flow from the second duct 28 directly to the first duct 24 without passing through the heat exchanger 1 and a connection position ( figure 2 ) in which the flap 33 guides the gas flow from the second duct 24 to the inlet opening 34 and the outlet opening 35 to the first duct 24.
  • the lateral and end edges of the flap portion 33.1 are in sealing engagement respectively against seat surfaces 36, 37 extending into the manifold 22 and belonging to the valve body 21; the lateral and end edges of the flap portion 33.2 are in sealing engagement respectively against surfaces 38, 39 forming a seat and belonging to the flange 30.
  • the surfaces 36, 37 extend on one side of the bearings opposite to the surfaces 38, 39.
  • the flap 33 in connection position thus isolates the portion of the collector 22 into which the second duct 28 of the portion of the collector 23 into which the first duct 24 opens.
  • the flap 33 deflects the gas flow directly to the first duct 24.
  • the inlet and outlet of the exchanger open all two in the valve body behind the shutter, there is no circulation in the heat exchanger even if it is not sealed with respect to the conduits 24, 28.
  • the surface 39 belongs to a crosspiece of the flange 30 which is integral with the shutter element 11 of the central channel 7.
  • the flange 30 Due to the structure of the flange 30 and the distribution of the surfaces 36, 37, 38, 39 forming the seat of the flap 33 between the valve body 21 and the flange 30, the flange 30 is compact and makes it possible to obtain a small distance between the valve body 21 and the body 3 of the exchanger 1.
  • the flange 30 is made of a thermally conductive material and constitutes a thermal bridge between the valve body 21 and the body 3 of the exchanger 1.
  • the collector 22 is provided with a thermally conductive fin 29 which extends perpendicularly to the axis 32 of the flap 33 and which comes be supported on the body 3 of the exchanger 1, here indirectly via the shutter element 11, made of thermally conductive material.
  • the fin 29 thus promotes thermal conduction between the body 3 of the exchanger 1 and the valve body 21. It is possible to use any element or any shape capable of forming a thermal bridge between the valve body 21 and the body 3, for example one or more local increases in thickness.
  • the return element 13 and the flange 30 comprise end-pieces 14, 15 intended to extend opposite the openings 8.1, 8.2 to allow the connection of ducts to the central channel 7.
  • These end-pieces 14, 15 are welded to the walls 4.3 , 4.4 and are intended to be connected to pipes carrying a heat transfer fluid.
  • the central channel 7 thus carries the heat transfer fluid that will allow the cooling of the exhaust gas that will flow in the peripheral channels 10.
  • the central partitions 5 are thus in contact with the coolant and the gases to be cooled and allow a direct heat transfer between them, and the peripheral partitions 9 provide a heat transfer between the gases to be cooled and the heat transfer fluid via the central partitions 5.
  • central channel for the coolant and peripheral channels surrounding the central channel for the fluid to be cooled allows to obtain a compact and efficient heat exchanger structure by favoring heat transfer by convection and conduction.
  • a single central channel for the heat transfer fluid limits the lengths to be sealed and minimizes the risk of leakage.
  • shut-off element 11 since the shut-off element 11 is in contact with the coolant, the element promotes the cooling of the fin 29 and thus of the valve body 21.
  • the components welded to the body 3 of the exchanger are laser welded.
  • valve assembly 2 and the return element 13 are arranged in such a way that the channels 10.a extend on one side of the central channel 7 opposite the channels 10.b (see FIG. the figure 7 ).
  • the body 3 of the exchanger 1 comprises only four main peripheral channels 110 made in the mass of the body 3, each of these peripheral channels 110 being subdivided into a plurality of peripheral sub-channels 111 via a wall in zigzag 112 reported in each peripheral channel 110.
  • these walls in zigzag 112 may have reliefs, for example embossing, to create turbulence in the gas stream.
  • the central channel 207 is identical to the central channel 7 previously described, all the peripheral channels 210 of the body 203 of the exchanger are unidirectional and the body 203 of the exchanger comprises two additional channels, namely a bypass channel 250 uncooled and an isolation channel 251 containing air and thermally isolating the branch channel 250 of the central channel 207.
  • valve body 221 of the valve assembly 202 is fixed to the body 203 of the exchanger by a flange 230 having a single flap 233 movable between a connection position of the duct 224 to the peripheral channels 210 and a bypass position in which the duct 224 is connected to the bypass channel 250.
  • isolation channel 251 is optional.
  • the body 3 of the heat exchanger comprises two peripheral walls 300, parallel to the walls 4.5, 4.6, having longitudinal edges connected to the walls 4.3, 4.4 to define with them and with the walls 4.5, 4.6 of the main channels 301 for the passage of the coolant.
  • Between the peripheral walls 300 extend central partitions 302 delimiting central channels 303 of smaller section than the main channels 301 and intended for the passage of gases to be cooled.
  • the body of the heat exchanger may have a different structure from that described and result for example from the combination of one or more of the embodiments described or result from an assembly of different parts.
  • the number of channels may be different and the sections of those may not be rectangular.
  • the outer envelope and the central channel may thus have a circular section and the peripheral channels a section into annular segments.
  • the body may comprise at least one extruded portion incorporating at least some of the partitions delimiting (in whole or in part) a plurality of channels.
  • the body 3 of the exchanger may result from the assembly of several extruded parts (the body 3 remains an "extruded body" in the sense of the present description.
  • Part 3.B comprises a central portion comprising the two central partitions 5 whose adjacent longitudinal edges are connected by partitions 5 'to delimit the central channel 7 which is only open at its ends before the introduction of the shutter elements 11, 12 (not visible here).
  • Central partitions 5 extend the peripheral partitions 9.
  • Part 3.B is mounted in part 3.A in such a way that the walls 4.3, 4.4, 4.5 and 4.6 delimit the peripheral channels 10 with the peripheral walls 9. It is not necessary to fix the free longitudinal edges of the peripheral partitions 9 to the casing 4, a sealing of the peripheral channels 9 relative to each other is not necessary for the proper operation of the exchanger 1. In contrast, the central channel 7 is longitudinally watertight even before the assembly of part 4.8 in part 4.A, the risk of leakage of the coolant to be avoided.
  • ribs 70 project from peripheral partitions to increase the exchange surfaces with the gas flow.
  • half-bodies 3.A ', 3.B' each delimiting: a longitudinal portion of the walls 4.3 and 4.4; one of the walls 4.5, 4.6; one of the central partitions 5 and the peripheral partitions 9.
  • the half-bodies 3.A ', 3.B' are joined to form the central channel 7 and are connected to each other by a longitudinal weld extending along the walls 4.3 and 4.4.
  • the partitions of the body of the exchanger may locally have plastic deformations aimed at generating turbulence in the gas flow.
  • These partitions can for example be corrugated as shown on the figure 11 .
  • the seat surfaces for the flap can be made on the flange only. Seat surfaces may also be provided on the valve body, either for only one of the positions of the flap, or for both positions of the flap.
  • the edges of the flap 33 may be spaced apart from the surfaces forming a seat belonging to the valve body 21 and the flange 30 by a distance less than a minimum clearance clearance. This means that there is no impervious support of the flap on these surfaces but that a space extends between them, this space being of sufficiently small dimensions so that the resulting leakage is not detrimental to the operation of the heat exchange device. It is also possible to arrange the valve assembly so that the shutter in the bypass position cooperates with seat surfaces belonging to the valve body and / or the flange.
  • the fin 29 is optional.
  • the second duct may be delimited by the flange.

Description

La présente invention concerne les circuits de transport de fluides tels que ceux utilisés dans les véhicules automobiles, notamment pour faire recirculer les gaz d'échappement des moteurs thermiques de ces véhicules. Elle concerne en particulier un ensemble de vanne conforme au préambule de la revendication 1. Un tel ensemble est connu p.ex. de la figure 1 du document DE 103 46 250 A1 .The present invention relates to fluid transport circuits such as those used in motor vehicles, in particular for recirculating the exhaust gases of the combustion engines of these vehicles. It relates in particular to a valve assembly according to the preamble of claim 1. Such an assembly is known for example from the figure 1 of the document DE 103 46 250 A1 .

ARRIERE PLAN DE L'INVENTIONBACKGROUND OF THE INVENTION

Un circuit de recirculation de gaz d'échappement du moteur thermique d'un véhicule automobile (communément appelé EGR pour "Exhaust Gas Recirculation") s'étend entre le circuit d'échappement et le circuit d'admission du moteur thermique et comprend classiquement un échangeur thermique pour refroidir les gaz d'échappement, un canal de dérivation non refroidi, une vanne de by-pass pour diriger sélectivement le flux gazeux dans l'échangeur thermique ou dans le conduit de dérivation, et une vanne de régulation pour régler le débit du flux gazeux dans le circuit de recirculation.An exhaust gas recirculation circuit of the engine of a motor vehicle (commonly known as EGR for "Exhaust Gas Recirculation") extends between the exhaust system and the intake circuit of the engine and conventionally comprises a heat exchanger for cooling the exhaust gas, an uncooled bypass channel, a bypass valve for selectively directing the gas flow into the heat exchanger or the bypass duct, and a control valve for adjusting the flow rate of the gas flow in the recirculation circuit.

La structure de ces circuits de recirculation et le grand nombre de pièces qui les constituent leur confèrent un encombrement important et en compliquent également la fabrication. Or, l'espace disponible dans le compartiment moteur du véhicule est de plus en plus restreint, rendant difficile l'implantation des circuits de recirculation actuels. En outre, cet espace restreint limite les possibilités de refroidissement des composants du circuit de recirculation qui sont soumis à la température élevée des gaz d'échappement.The structure of these recirculation circuits and the large number of parts that constitute them give them a large footprint and also complicate the manufacture. However, the available space in the engine compartment of the vehicle is increasingly restricted, making it difficult to implement current recirculation circuits. In addition, this restricted space limits the cooling possibilities of the components of the recirculation circuit which are subjected to the high temperature of the exhaust gas.

OBJET DE L'INVENTIONOBJECT OF THE INVENTION

Un but de l'invention est de fournir un moyen pour résoudre au moins un des inconvénients précités.An object of the invention is to provide a means for solving at least one of the aforementioned drawbacks.

RESUME DE L'INVENTIONSUMMARY OF THE INVENTION

A cet effet, on prévoit, selon l'invention un ensemble de vanne conforme à la revendication 1.For this purpose, according to the invention there is provided a valve assembly according to claim 1.

Ainsi, l'ensemble de vanne comprend un corps avec un clapet mobile et une bride de fixation du corps à un échangeur. La bride assure non seulement cette fonction de liaison du corps avec l'échangeur, mais également une fonction de support du volet. L'ensemble de vanne incorpore ainsi dans une structure compacte un clapet, un volet et une bride de fixation de l'ensemble sur l'échangeur. Selon l'invention, le corps et la bride comprennent des surfaces formant siège pour le volet lorsque celui-ci est dans au moins une de ses positions.Thus, the valve assembly comprises a body with a movable valve and a flange for attaching the body to an exchanger. The flange not only provides this function of connecting the body with the exchanger, but also a flap support function. The valve assembly thus incorporates in a compact structure a valve, a flap and a mounting flange of the assembly on the exchanger. According to the invention, the body and the flange comprise seat surfaces for the flap when the flap is in at least one of its positions.

Ainsi, le corps et la bride comportent tous deux des surfaces formant siège pour le volet, ce qui permet de limiter l'encombrement de la bride et de rapprocher le corps de l'échangeur.Thus, the body and the flange both have surfaces forming a seat for the flap, which limits the size of the flange and bring the body of the exchanger.

L'invention a également pour objet un dispositif d'échange thermique comprenant un échangeur et un tel ensemble de vanne.The invention also relates to a heat exchange device comprising an exchanger and such a valve assembly.

D'autres caractéristiques et avantages de l'invention ressortiront à la lecture de la description qui suit de modes de réalisation particuliers non limitatifs de l'invention.Other features and advantages of the invention will emerge on reading the following description of particular non-limiting embodiments of the invention.

BREVE DESCRIPTION DES DESSINSBRIEF DESCRIPTION OF THE DRAWINGS

Il sera fait référence aux dessins annexés, parmi lesquels :

  • la figure 1 est une vue en perspective d'un échangeur thermique associé à un ensemble de vanne conformément à l'invention,
  • la figure 2 est une vue de cet échangeur thermique en coupe selon le plan II de la figure 1, le volet étant en position de raccordement de l'ensemble de vanne avec l'échangeur,
  • la figure 3 est une vue partielle, analogue à celle de la figure 2, montrant l'ensemble de vanne lorsque le volet est dans une position de dérivation,
  • la figure 4 est une vue partielle en perspective éclatée de l'échangeur thermique équipé de l'ensemble de vanne conforme à l'invention,
  • la figure 5 est une vue partielle en perspective du corps de l'échangeur thermique,
  • la figure 6 est une vue en bout du corps de l'échangeur thermique selon un premier mode de réalisation,
  • la figure 7 est une vue analogue à la figure 6 du corps de l'échangeur thermique selon un deuxième mode de réalisation,
  • la figure 8 est une vue analogue à celle de la figure 6 du corps de l'échangeur thermique conforme à un troisième mode de réalisation,
  • la figure 9 est une vue analogue à celle de la figure 6 d'un échangeur thermique conforme à un quatrième mode de réalisation,
  • la figure 10 est une vue analogue à celle de la figure 2, de l'échangeur thermique conforme au quatrième mode de réalisation,
  • la figure 11 est une vue partielle avec écorché du corps d'un échangeur thermique avec un profil particulier de cloison de séparation des canaux,
  • la figure 12 est une vue analogue à celle de la figure 6 d'un corps d'échangeur thermique conforme à un cinquième mode de réalisation,
  • les figures 13 et 14 sont des vues en bout du corps de l'échangeur selon des variantes de réalisation, avant assemblage.
Reference will be made to the appended drawings, among which:
  • the figure 1 is a perspective view of a heat exchanger associated with a valve assembly according to the invention,
  • the figure 2 is a view of this heat exchanger in section along the plane II of the figure 1 , the flap being in the connection position of the valve assembly with the exchanger,
  • the figure 3 is a partial view similar to that of the figure 2 showing the valve assembly when the flap is in a bypass position,
  • the figure 4 is a partial exploded perspective view of the heat exchanger equipped with the valve assembly according to the invention,
  • the figure 5 is a partial perspective view of the body of the heat exchanger,
  • the figure 6 is an end view of the body of the heat exchanger according to a first embodiment,
  • the figure 7 is a view similar to the figure 6 of the body of the heat exchanger according to a second embodiment,
  • the figure 8 is a view similar to that of the figure 6 of the body of the heat exchanger according to a third embodiment,
  • the figure 9 is a view similar to that of the figure 6 a heat exchanger according to a fourth embodiment,
  • the figure 10 is a view similar to that of the figure 2 of the heat exchanger according to the fourth embodiment,
  • the figure 11 is a partial view with skin of the body of a heat exchanger with a particular profile of channel separation wall,
  • the figure 12 is a view similar to that of the figure 6 a heat exchanger body according to a fifth embodiment,
  • the Figures 13 and 14 are end views of the body of the exchanger according to alternative embodiments, before assembly.

DESCRIPTION DETAILLEE DE L'INVENTIONDETAILED DESCRIPTION OF THE INVENTION

L'invention est ici décrite en application à un circuit de recirculation des gaz d'échappement d'un moteur thermique de véhicule automobile.The invention is here described in application to a recirculation circuit of the exhaust gas of a motor vehicle engine.

De manière connue en elle-même, le circuit de recirculation est pourvu de moyens de sa liaison d'une part au circuit d'échappement du moteur thermique et d'autre part au circuit d'admission du moteur thermique. Le principe de fonctionnement d'un tel circuit de recirculation est connu en lui-même et ne sera pas détaillé ci-après.In a manner known per se, the recirculation circuit is provided with means of its connection on the one hand to the exhaust circuit of the engine and on the other hand to the intake circuit of the engine. The operating principle of such a recirculation circuit is known in itself and will not be detailed below.

En référence aux figures 1 à 6, le circuit de recirculation de gaz d'échappement comprend un dispositif d'échange thermique comportant un échangeur thermique, généralement désigné en 1, associé à un ensemble de vanne, généralement désigné en 2.With reference to Figures 1 to 6 , the exhaust gas recirculation circuit comprises a heat exchange device comprising a heat exchanger, generally designated 1, associated with a valve assembly, generally designated 2.

L'échangeur thermique 1 comprend un corps généralement désigné en 3, comportant une enveloppe externe 4, de forme tubulaire, ayant des extrémités ouvertes 4.1, 4.2. L'enveloppe externe 4 a ici une forme parallélépipédique et comprend des parois 4.3, 4.4, 4.5 et 4.6 parallèles et opposées deux à deux.The heat exchanger 1 comprises a body generally designated 3, comprising an outer casing 4, of tubular shape, having open ends 4.1, 4.2. The outer casing 4 here has a parallelepipedal shape and comprises walls 4.3, 4.4, 4.5 and 4.6 parallel and opposite two by two.

Dans l'enveloppe externe 4, deux cloisons centrales 5 s'étendent parallèlement entre elles et à un axe longitudinal 6 de l'enveloppe externe 4. Les cloisons centrales 5 ont des bords longitudinaux opposés reliés aux parois 4.3, 4.4 de manière à définir avec celles-ci un canal central 7. Le canal central 7 comprend des portions élargies 7.1, 7.2 au voisinage des parois 4.3, 4.4 de sorte que le canal central 7 a une section transversale ici en forme de I. Les portions 7.1, 7.2 communiquent à l'extérieur de l'enveloppe externe 4 par des ouvertures 8.1, 8.2 ménagées respectivement dans les parois 4.3, 4.4 au voisinage des extrémités 4.1, 4.2 de l'enveloppe externe 4.In the outer casing 4, two central partitions 5 extend parallel to each other and to a longitudinal axis 6 of the outer casing 4. The central partitions 5 have opposite longitudinal edges connected to the walls 4.3, 4.4 so as to define with the central channel 7 comprises enlarged portions 7.1, 7.2 in the vicinity of the walls 4.3, 4.4 so that the central channel 7 has a cross-section here in the form of I. The portions 7.1, 7.2 communicate with each other. the outside of the outer casing 4 by openings 8.1, 8.2 formed respectively in the walls 4.3, 4.4 in the vicinity of the ends 4.1, 4.2 of the outer casing 4.

Dans l'enveloppe externe 4, des cloisons périphériques 9 s'étendent parallèlement les unes aux autres et à l'axe longitudinal 6. Les cloisons périphériques 9 s'étendent de part et d'autre du canal central 7 et ont des bords longitudinaux opposés reliés respectivement aux parois 4.5, 4.6 et aux cloisons centrales 5 de manière à définir avec celles-ci des canaux périphériques 10. Les canaux périphériques 10 ont ici une section transversale rectangulaire.In the outer casing 4, partitions 9 peripheral devices extend parallel to each other and the longitudinal axis 6. The peripheral partitions 9 extend on either side of the central channel 7 and have opposite longitudinal edges respectively connected to the walls 4.5, 4.6 and central partitions 5 so as to define therewith peripheral channels 10. The peripheral channels 10 here have a rectangular cross section.

Le canal central 7 a une section supérieure à celle des canaux périphériques 10.The central channel 7 has a section greater than that of the peripheral channels 10.

Le corps 3 est réalisé en aluminium par extrusion de sorte qu'à la sortie de l'extrudeuse, les canaux 7 et 10 ont des extrémités débouchantes. La fabrication par extrusion permet l'obtention d'un corps monobloc, ce qui limite les opérations d'assemblage et minimise les coûts de fabrication. Le corps 3 peut également être réalisé en un autre métal que l'aluminium et plus généralement en tout matériau possédant des propriétés suffisantes de conduction thermique.The body 3 is made of aluminum by extrusion so that at the outlet of the extruder, the channels 7 and 10 have open ends. Extrusion manufacturing makes it possible to obtain a one-piece body, which limits assembly operations and minimizes manufacturing costs. The body 3 may also be made of a metal other than aluminum and more generally any material having sufficient thermal conduction properties.

Sur les extrémités 4.1, 4.2 de l'enveloppe externe 4 sont fixés des organes de définition de circuits de fluides indépendants.On the ends 4.1, 4.2 of the outer casing 4 are fixed independent fluid circuit defining members.

Ces organes comprennent deux éléments d'obturation 11, 12 fixés par soudage aux extrémités du canal central 7, respectivement du côté de l'extrémité 4.1 et de l'extrémité 4.2 de l'enveloppe externe 4.These members comprise two closure elements 11, 12 fixed by welding at the ends of the central channel 7, respectively on the end-end 4.1 and end-4.2 side of the outer casing 4.

Ces organes comprennent également un élément de retour 13 qui a la forme d'un capot ayant une paroi de fond en segment cylindrique d'axe perpendiculaire aux parois 4.5, 4.6 et qui est fixé sur l'extrémité 4.2 de l'enveloppe 4. L'élément de retour 13 permet de renvoyer un flux issu de certains des canaux périphériques 10, en l'occurrence ceux identifiés 10.a s'étendant dans la moitié supérieure de l'enveloppe externe 4, vers les autres canaux périphériques 10, c'est-à-dire ceux identifiés 10.b s'étendant dans la moitié inférieure de l'enveloppe externe 4 (voir plus particulièrement les figures 5 et 6).These members also comprise a return element 13 which has the shape of a cap having a cylindrical segment bottom wall with an axis perpendicular to the walls 4.5, 4.6 and which is fixed on the end 4.2 of the casing 4. L return element 13 makes it possible to send a flux coming from some of the peripheral channels 10, in this case those identified 10.a extending in the upper half of the outer envelope 4, towards the other peripheral channels 10, c ' that is to say those identified 10.b extending into the lower half of the outer envelope 4 (see more particularly the figures 5 and 6 ).

Ces organes comprennent en outre un élément de liaison des extrémités des canaux périphériques 10, situées du côté de l'extrémité 4.1, à des conduits d'amenée et d'évacuation de fluide. Cet élément de liaison est ici formé par l'ensemble de vanne 2.These members further comprise a connecting member of the ends of the peripheral channels 10, located on the side of the end 4.1, to fluid supply and discharge conduits. This connecting element is here formed by the valve assembly 2.

L'ensemble de vanne 2 comprend un corps de vanne 21 ayant une portion d'extrémité agencée pour former un collecteur 22 et une portion d'extrémité 23 délimitant un premier conduit 24 débouchant dans le collecteur 22 par un siège 25 pour un clapet 26 monté mobile dans le collecteur 22 entre une position extrême de fermeture et une position extrême d'ouverture du premier conduit 24. La portion d'extrémité 23 est équipé de moyens de liaison du premier conduit 24 à une canalisation externe. Le collecteur 22 prolonge le premier conduit 24 et forme ici une extrémité évasée de celui-ci. Le clapet 26 est relié à la tige d'un actionneur 27 monté à l'extérieur du corps de vanne 21 du côté de sa portion d'extrémité 23. L'actionneur 27, connu en lui-même est agencé pour faire coulisser de manière réglable le clapet 26 entre ses deux positions.The valve assembly 2 comprises a valve body 21 having an end portion arranged to form a manifold 22 and an end portion 23 delimiting a first conduit 24 opening into the manifold 22 by a seat 25 for a valve 26 mounted movable in the manifold 22 between an extreme position of closure and an extreme open position of the first conduit 24. The end portion 23 is provided with means for connecting the first conduit 24 to an external pipe. The collector 22 extends the first conduit 24 and here forms a flared end thereof. The valve 26 is connected to the rod of an actuator 27 mounted outside the valve body 21 on the side of its end portion 23. The actuator 27, known in itself, is arranged to slide in such a way that adjustable valve 26 between its two positions.

Le collecteur 22 délimite également un deuxième conduit 28 débouchant dans le collecteur 22 du côté de la paroi 4.3 et perpendiculairement à l'axe longitudinal 6. Le deuxième conduit 28 est un conduit d'entrée d'un flux gazeux dans l'ensemble de vanne 2 et le premier conduit 24 est un conduit de sortie du flux gazeux de l'ensemble de vanne 2. Le deuxième conduit 28 est ainsi destiné à être raccordé au circuit d'échappement du moteur thermique et le premier conduit 24 est destiné à être relié au conduit d'admission du moteur thermique.The collector 22 also defines a second duct 28 opening into the collector 22 on the side of the wall 4.3 and perpendicular to the longitudinal axis 6. The second duct 28 is an inlet duct for a gas flow in the valve assembly 2 and the first duct 24 is an outlet duct of the gas stream of the valve assembly 2. The second duct 28 is thus intended to be connected to the exhaust circuit of the heat engine and the first duct 24 is intended to be connected to the intake duct of the engine.

Le collecteur 22 est emboîté entre deux ailes 31 d'une bride, généralement désigné en 30, emboîtée et fixée par soudage sur l'extrémité 4.1 de l'enveloppe externe 4. Les ailes 31 sont parallèles aux parois 4.5, 4.6 de l'enveloppe externe 4 et sont pourvues de paliers recevant à pivotement un axe 32 d'un volet double, généralement désigné en 33, comportant deux parties de volet 33.1, 33.2 s'étendant dans le prolongement l'une de l'autre de part et d'autre de l'axe 32.The collector 22 is fitted between two flanges 31 of a flange, generally designated 30, fitted and fixed by welding on the end 4.1 of the envelope 4. The wings 31 are parallel to the walls 4.5, 4.6 of the outer casing 4 and are provided with bearings pivotally receiving an axis 32 of a double flap, generally designated 33, having two parts of flap 33.1, 33.2 s extending in the extension of one another on either side of the axis 32.

La bride 30 et le volet 33 définissent une ouverture d'entrée 34 dans l'échangeur 1 en regard des canaux périphériques 10.a et une ouverture de sortie 35 de l'échangeur 1 en regard des canaux périphériques 10.b.The flange 30 and the flap 33 define an inlet opening 34 in the exchanger 1 facing the peripheral channels 10.a and an outlet opening 35 of the exchanger 1 opposite the peripheral channels 10.b.

Le volet 33 est monté en regard du deuxième conduit 28 et de l'ouverture 34 et est mobile entre une position de dérivation (figure 3) dans laquelle le volet 33 dévie un flux gazeux issu du deuxième conduit 28 directement vers le premier conduit 24 sans passer par l'échangeur thermique 1 et une position de raccordement (figure 2) dans laquelle le volet 33 guide le flux gazeux issu du deuxième conduit 24 vers l'ouverture d'entrée 34 et de l'ouverture de sortie 35 vers le premier conduit 24.The flap 33 is mounted facing the second duct 28 and the opening 34 and is movable between a bypass position ( figure 3 ) in which the flap 33 deflects a gas flow from the second duct 28 directly to the first duct 24 without passing through the heat exchanger 1 and a connection position ( figure 2 ) in which the flap 33 guides the gas flow from the second duct 24 to the inlet opening 34 and the outlet opening 35 to the first duct 24.

Dans la position de raccordement, les bords latéraux et terminal de la partie de volet 33.1 sont en appui étanche respectivement contre des surfaces 36, 37 formant siège s'étendant dans le collecteur 22 et appartenant au corps de vanne 21 ; les bords latéraux et terminal de la partie de volet 33.2 sont en appui étanche respectivement contre des surfaces 38, 39 formant siège et appartenant à la bride 30. Les surfaces 36, 37 s'étendent d'un côté des paliers opposé aux surfaces 38, 39. Le volet 33 en position de raccordement isole ainsi la partie du collecteur 22 dans laquelle débouche le deuxième conduit 28 de la partie du collecteur 23 dans laquelle débouche le premier conduit 24.In the connection position, the lateral and end edges of the flap portion 33.1 are in sealing engagement respectively against seat surfaces 36, 37 extending into the manifold 22 and belonging to the valve body 21; the lateral and end edges of the flap portion 33.2 are in sealing engagement respectively against surfaces 38, 39 forming a seat and belonging to the flange 30. The surfaces 36, 37 extend on one side of the bearings opposite to the surfaces 38, 39. The flap 33 in connection position thus isolates the portion of the collector 22 into which the second duct 28 of the portion of the collector 23 into which the first duct 24 opens.

En position de dérivation, le volet 33 dévie le flux gazeux directement vers le premier conduit 24. Comme l'entrée et la sortie de l'échangeur débouchent toutes deux dans le corps de vanne en arrière du volet, il n'y a pas de circulation dans l'échangeur même si celui-ci n'est pas isolé de façon étanche par rapport aux conduits 24, 28.In the bypass position, the flap 33 deflects the gas flow directly to the first duct 24. As the inlet and outlet of the exchanger open all two in the valve body behind the shutter, there is no circulation in the heat exchanger even if it is not sealed with respect to the conduits 24, 28.

La surface 39 appartient à une traverse de la bride 30 dont est solidaire l'élément d'obturation 11 du canal central 7.The surface 39 belongs to a crosspiece of the flange 30 which is integral with the shutter element 11 of the central channel 7.

Du fait de la structure de la bride 30 et de la répartition des surfaces 36, 37, 38, 39 formant siège du volet 33 entre le corps de vanne 21 et la bride 30, la bride 30 est compacte et permet l'obtention d'une faible distance entre le corps de vanne 21 et le corps 3 de l'échangeur 1. La bride 30 est en un matériau thermiquement conducteur et constitue un pont thermique entre le corps de vanne 21 et le corps 3 de l'échangeur 1.Due to the structure of the flange 30 and the distribution of the surfaces 36, 37, 38, 39 forming the seat of the flap 33 between the valve body 21 and the flange 30, the flange 30 is compact and makes it possible to obtain a small distance between the valve body 21 and the body 3 of the exchanger 1. The flange 30 is made of a thermally conductive material and constitutes a thermal bridge between the valve body 21 and the body 3 of the exchanger 1.

Pour améliorer les échanges thermiques entre le corps de vanne 21 et le corps 3 de l'échangeur thermique 1, le collecteur 22 est pourvu d'une ailette 29 thermiquement conductrice qui s'étend perpendiculairement à l'axe 32 du volet 33 et qui vient prendre appui sur le corps 3 de l'échangeur 1, ici indirectement via l'élément d'obturation 11, réalisé en matériau thermiquement conducteur. L'ailette 29 favorise ainsi une conduction thermique entre le corps 3 de l'échangeur 1 et le corps de vanne 21. Il est possible d'utiliser tout élément ou toute forme susceptible de former un pont thermique entre le corps de vanne 21 et le corps 3, par exemple une ou plusieurs augmentations locales d'épaisseur.To improve the heat exchange between the valve body 21 and the body 3 of the heat exchanger 1, the collector 22 is provided with a thermally conductive fin 29 which extends perpendicularly to the axis 32 of the flap 33 and which comes be supported on the body 3 of the exchanger 1, here indirectly via the shutter element 11, made of thermally conductive material. The fin 29 thus promotes thermal conduction between the body 3 of the exchanger 1 and the valve body 21. It is possible to use any element or any shape capable of forming a thermal bridge between the valve body 21 and the body 3, for example one or more local increases in thickness.

L'élément de retour 13 et la bride 30 comportent des embouts 14, 15 destinés à s'étendre en regard des ouvertures 8.1, 8.2 pour permettre le raccordement de canalisations au canal central 7. Ces embouts 14, 15 sont soudés sur les parois 4.3, 4.4 et sont destinés à être raccordés à des canalisations de transport d'un fluide caloporteur. Le canal central 7 transporte ainsi le fluide caloporteur qui va permettre le refroidissement des gaz d'échappement qui vont circuler dans les canaux périphériques 10. Les cloisons centrales 5 sont ainsi en contact avec le fluide caloporteur et les gaz à refroidir et permettent un transfert thermique direct entre ceux-ci, et les cloisons périphériques 9 assurent un transfert thermique entre les gaz à refroidir et le fluide caloporteur via les cloisons centrales 5. L'utilisation d'un canal central pour le liquide caloporteur et de canaux périphériques entourant le canal central pour le fluide à refroidir permet d'obtenir une structure d'échangeur thermique compacte et efficace en favorisant les transferts thermiques par convection et conduction. En outre, un canal central unique pour le fluide caloporteur permet de limiter les longueurs à étancher et minimise le risque de fuite.The return element 13 and the flange 30 comprise end-pieces 14, 15 intended to extend opposite the openings 8.1, 8.2 to allow the connection of ducts to the central channel 7. These end-pieces 14, 15 are welded to the walls 4.3 , 4.4 and are intended to be connected to pipes carrying a heat transfer fluid. The central channel 7 thus carries the heat transfer fluid that will allow the cooling of the exhaust gas that will flow in the peripheral channels 10. The central partitions 5 are thus in contact with the coolant and the gases to be cooled and allow a direct heat transfer between them, and the peripheral partitions 9 provide a heat transfer between the gases to be cooled and the heat transfer fluid via the central partitions 5. The use of a central channel for the coolant and peripheral channels surrounding the central channel for the fluid to be cooled allows to obtain a compact and efficient heat exchanger structure by favoring heat transfer by convection and conduction. In addition, a single central channel for the heat transfer fluid limits the lengths to be sealed and minimizes the risk of leakage.

On notera en outre que, l'élément d'obturation 11 étant en contact avec le fluide caloporteur, l'élément favorise le refroidissement de l'ailette 29 et donc du corps de vanne 21.It will further be noted that, since the shut-off element 11 is in contact with the coolant, the element promotes the cooling of the fin 29 and thus of the valve body 21.

Les composants soudés sur le corps 3 de l'échangeur sont soudés au laser.The components welded to the body 3 of the exchanger are laser welded.

Selon un deuxième mode de réalisation, l'ensemble de vanne 2 et l'élément de retour 13 sont agencés de telle manière que les canaux 10.a s'étendent d'un côté du canal central 7 opposé aux canaux 10.b (voir la figure 7).According to a second embodiment, the valve assembly 2 and the return element 13 are arranged in such a way that the channels 10.a extend on one side of the central channel 7 opposite the channels 10.b (see FIG. the figure 7 ).

Selon un troisième mode de réalisation, comme représenté à la figure 8, le corps 3 de l'échangeur 1 ne comprend que quatre canaux périphériques 110 principaux réalisés dans la masse du corps 3, chacun de ces canaux périphériques 110 étant subdivisé en une pluralité de sous-canaux périphériques 111 par l'intermédiaire d'une paroi en zigzag 112 rapportée dans chaque canal périphérique 110. Pour créer des turbulences et augmenter l'efficacité de l'échangeur thermique, ces parois en zigzag 112 peuvent présenter des reliefs, par exemple un gaufrage, pour créer des turbulences dans le flux gazeux.According to a third embodiment, as shown in FIG. figure 8 , the body 3 of the exchanger 1 comprises only four main peripheral channels 110 made in the mass of the body 3, each of these peripheral channels 110 being subdivided into a plurality of peripheral sub-channels 111 via a wall in zigzag 112 reported in each peripheral channel 110. To create turbulence and increase the efficiency of the heat exchanger, these walls in zigzag 112 may have reliefs, for example embossing, to create turbulence in the gas stream.

Bien que l'invention ait été décrite en relation avec un échangeur thermique conformé en U, l'invention est bien entendu applicable à un échangeur thermique conformé en I comme dans le quatrième mode de réalisation représenté aux figures 9 et 10. Une extrémité du corps 203 de l'échangeur est alors reliée au corps de vanne 221 qui définit un conduit 224 unique tandis que l'extrémité opposée du corps 203 est reliée à un conduit externe par un élément de liaison 252.Although the invention has been described in relation to a U-shaped heat exchanger, the invention is of course applicable to an I-shaped heat exchanger as in the fourth embodiment shown in FIGS. figures 9 and 10 . One end of the body 203 of the exchanger is then connected to the valve body 221 which defines a single conduit 224 while the opposite end of the body 203 is connected to an external conduit by a connecting element 252.

Dans cet agencement, le canal central 207 est identique au canal central 7 précédemment décrit, tous les canaux périphériques 210 du corps 203 de l'échangeur sont unidirectionnels et le corps 203 de l'échangeur comprend deux canaux supplémentaires, à savoir un canal de dérivation 250 non refroidi et un canal d'isolement 251 contenant de l'air et servant à isoler thermiquement le canal de dérivation 250 du canal central 207.In this arrangement, the central channel 207 is identical to the central channel 7 previously described, all the peripheral channels 210 of the body 203 of the exchanger are unidirectional and the body 203 of the exchanger comprises two additional channels, namely a bypass channel 250 uncooled and an isolation channel 251 containing air and thermally isolating the branch channel 250 of the central channel 207.

Le corps de vanne 221 de l'ensemble de vanne 202 est fixé au corps 203 de l'échangeur par une bride 230 comportant un volet 233 simple mobile entre une position de raccordement du conduit 224 aux canaux périphériques 210 et une position de dérivation dans laquelle le conduit 224 est raccordé au canal de dérivation 250.The valve body 221 of the valve assembly 202 is fixed to the body 203 of the exchanger by a flange 230 having a single flap 233 movable between a connection position of the duct 224 to the peripheral channels 210 and a bypass position in which the duct 224 is connected to the bypass channel 250.

On notera que le canal d'isolement 251 est facultatif.Note that the isolation channel 251 is optional.

Selon un cinquième mode de réalisation, représenté à la figure 12, le corps 3 de l'échangeur thermique comprend deux cloisons périphériques 300, parallèles aux parois 4.5, 4.6, ayant des bords longitudinaux reliés aux parois 4.3, 4.4 pour définir avec celles-ci et avec les parois 4.5, 4.6 des canaux principaux 301 pour le passage du fluide caloporteur. Entre les cloisons périphériques 300 s'étendent des cloisons centrales 302 délimitant des canaux centraux 303 de plus faible section que les canaux principaux 301 et destinés au passage des gaz à refroidir.According to a fifth embodiment, represented at figure 12 , the body 3 of the heat exchanger comprises two peripheral walls 300, parallel to the walls 4.5, 4.6, having longitudinal edges connected to the walls 4.3, 4.4 to define with them and with the walls 4.5, 4.6 of the main channels 301 for the passage of the coolant. Between the peripheral walls 300 extend central partitions 302 delimiting central channels 303 of smaller section than the main channels 301 and intended for the passage of gases to be cooled.

Bien entendu, l'invention n'est pas limitée aux modes de réalisation décrits et on peut y apporter des variantes de réalisation sans sortir du cadre de l'invention tel que défini par les revendications.Of course, the invention is not limited to the embodiments described and variants can be made without departing from the scope of the invention as defined by the claims.

En particulier, le corps de l'échangeur thermique peut avoir une structure différente de celle décrite et résulter par exemple de la combinaison d'un ou plusieurs des modes de réalisation décrits ou résulter d'un assemblage de différentes pièces. Le nombre de canaux peut être différent et les sections de ceux peuvent ne pas être rectangulaires. L'enveloppe externe et le canal central peuvent ainsi avoir une section circulaire et les canaux périphériques une section en segments annulaires.In particular, the body of the heat exchanger may have a different structure from that described and result for example from the combination of one or more of the embodiments described or result from an assembly of different parts. The number of channels may be different and the sections of those may not be rectangular. The outer envelope and the central channel may thus have a circular section and the peripheral channels a section into annular segments.

En variante, le corps peut comprendre au moins une partie extrudée intégrant au moins certaines des cloisons délimitant (en tout ou partie) une pluralité de canaux. Ainsi, comme représenté sur les figures 13 et 14, le corps 3 de l'échangeur peut résulter de l'assemblage de plusieurs parties extrudées (le corps 3 reste un "corps extrudé" au sens de la présente description.Alternatively, the body may comprise at least one extruded portion incorporating at least some of the partitions delimiting (in whole or in part) a plurality of channels. Thus, as represented on the Figures 13 and 14 the body 3 of the exchanger may result from the assembly of several extruded parts (the body 3 remains an "extruded body" in the sense of the present description.

Sur la figure 3, on peut voir une première partie extrudée 3.A formant l'enveloppe 4 et une deuxième partie 3.B délimitant les canaux. La partie 3.B comprend une portion centrale comportant les deux cloisons centrales 5 dont les bords longitudinaux adjacents sont reliés par des cloisons 5' pour délimiter le canal central 7 qui n'est donc ouvert qu'à ses extrémités avant la mise en place des éléments d'obturation 11, 12 (non visibles ici). Des cloisons centrales 5 s'étendent les cloisons périphériques 9.On the figure 3 we can see a first extruded part 3.A forming the envelope 4 and a second part 3.B delimiting the channels. Part 3.B comprises a central portion comprising the two central partitions 5 whose adjacent longitudinal edges are connected by partitions 5 'to delimit the central channel 7 which is only open at its ends before the introduction of the shutter elements 11, 12 (not visible here). Central partitions 5 extend the peripheral partitions 9.

La partie 3.B est montée dans la partie 3.A de telle manière que les parois 4.3, 4.4, 4.5 et 4.6 délimitent les canaux périphériques 10 avec les parois périphériques 9. Il n'est pas nécessaire de fixer les bords longitudinaux libres des cloisons périphériques 9 à l'enveloppe 4, une étanchéité des canaux périphériques 9 les uns par rapport aux autres n'étant pas nécessaire au bon fonctionnement de l'échangeur 1. En revanche, le canal central 7 est lui longitudinalement étanche avant même le montage de la partie 4.8 dans la partie 4.A, le risque d'une fuite du fluide caloporteur devant être évité.Part 3.B is mounted in part 3.A in such a way that the walls 4.3, 4.4, 4.5 and 4.6 delimit the peripheral channels 10 with the peripheral walls 9. It is not necessary to fix the free longitudinal edges of the peripheral partitions 9 to the casing 4, a sealing of the peripheral channels 9 relative to each other is not necessary for the proper operation of the exchanger 1. In contrast, the central channel 7 is longitudinally watertight even before the assembly of part 4.8 in part 4.A, the risk of leakage of the coolant to be avoided.

On notera que des nervures 70 s'étendent en saillie des cloisons périphériques pour augmenter les surfaces d'échange avec le flux gazeux.It will be noted that ribs 70 project from peripheral partitions to increase the exchange surfaces with the gas flow.

Sur la figure 14, on peut voir deux parties extrudées identiques formant des demi-corps 3.A', 3.B' délimitant chacun : une portion longitudinale des parois 4.3 et 4.4 ; une des parois 4.5, 4.6 ; une des cloisons centrales 5 et des cloisons périphériques 9.On the figure 14 it is possible to see two identical extruded parts forming half-bodies 3.A ', 3.B' each delimiting: a longitudinal portion of the walls 4.3 and 4.4; one of the walls 4.5, 4.6; one of the central partitions 5 and the peripheral partitions 9.

Les demi-corps 3.A', 3.B' sont réunis pour former le canal central 7 et sont reliés l'un à l'autre par une soudure longitudinale s'étendant le long des parois 4.3 et 4.4.The half-bodies 3.A ', 3.B' are joined to form the central channel 7 and are connected to each other by a longitudinal weld extending along the walls 4.3 and 4.4.

Par ailleurs, d'autres procédés de sondage que le sondage laser évoqué dans la description des modes de réalisation précédents peuvent en outre être employés pour la réalisation de l'échangeur.Moreover, other sounding methods than the laser sounding referred to in the description of the previous embodiments can also be used for producing the exchanger.

En variante, les cloisons du corps de l'échangeur peuvent présenter localement des déformations plastiques visant à engendrer des turbulences dans le flux gazeux. Ces cloisons peuvent par exemple être ondulées comme représenté sur la figure 11.As a variant, the partitions of the body of the exchanger may locally have plastic deformations aimed at generating turbulence in the gas flow. These partitions can for example be corrugated as shown on the figure 11 .

Les surfaces formant siège pour le volet peuvent être réalisées sur la bride uniquement. Des surfaces formant siège peuvent également être réalisées sur le corps de vanne, soit pour une seule des positions du volet, soit pour les deux positions du volet.The seat surfaces for the flap can be made on the flange only. Seat surfaces may also be provided on the valve body, either for only one of the positions of the flap, or for both positions of the flap.

En position de raccordement, les bords du volet 33 peuvent être espacés des surfaces formant siège appartenant au corps de vanne 21 et à la bride 30 d'une distance inférieure à un jeu de fuite minimale. On entend par là qu'il n'y a pas d'appui étanche du volet sur ces surfaces mais qu'un espace s'étend entre ceux-ci, cet espace étant de dimensions suffisamment faibles pour que la fuite en résultant ne soit pas préjudiciable au fonctionnement du dispositif d'échange thermique. Il est également possible d'agencer l'ensemble de vanne de telle manière que le volet en position de dérivation coopère avec des surfaces formant siège appartenant au corps de vanne et/ou à la bride.In the connection position, the edges of the flap 33 may be spaced apart from the surfaces forming a seat belonging to the valve body 21 and the flange 30 by a distance less than a minimum clearance clearance. This means that there is no impervious support of the flap on these surfaces but that a space extends between them, this space being of sufficiently small dimensions so that the resulting leakage is not detrimental to the operation of the heat exchange device. It is also possible to arrange the valve assembly so that the shutter in the bypass position cooperates with seat surfaces belonging to the valve body and / or the flange.

L'ailette 29 est facultative.The fin 29 is optional.

Le sens de circulation des gaz dans l'ensemble de vanne et l'échangeur peut bien entendu être inversé par rapport à celui décrit.The flow direction of the gases in the valve assembly and the exchanger can of course be reversed relative to that described.

Le deuxième conduit peut être délimité par la bride.The second duct may be delimited by the flange.

Claims (9)

  1. Valve assembly comprising a body (21) delimiting at least a first duct (24) and a shut-off element (26) mounted in the body and able to move opposite a seat (25) formed in the first duct, characterized in that a clamping piece (30) for connecting to a heat exchanger (1) is fixed to the body, a flap (33) being mounted in the clamping piece so that it can pivot between a position in which it connects the first duct to the exchanger and a bypass position in which the first duct is not connected to the exchanger,
    in which the valve body (21) and the clamping piece (30) comprise seat-forming surfaces (36, 37, 38, 39) for the flap (33) when the latter is in at least one of its positions.
  2. Assembly according to Claim 1, in which the flap (33) in the said at least one of its positions bears against the seat-forming surfaces (36, 37, 38, 39).
  3. Assembly according to Claim 1, in which the flap (33) in the said at least one of its positions is separated from the seat-forming surfaces by a small leakage clearance.
  4. Assembly according to Claim 1, in which the flap (33) is a double flap comprising a pivot pin (32) on each side of which flap parts extend symmetrically, the seat-forming surfaces (36, 37) of the body (21) being symmetrically opposite the seat-forming surfaces (38, 39) of the clamping piece (30) with respect to the pivot pin (32).
  5. Assembly according to Claim 1, in which the seat-forming surfaces (36, 37, 38, 39) of the body (21) and of the clamping piece (30) collaborate with the flap (33) when this flap is in its connected position.
  6. Assembly according to Claim 1, delimiting a second duct (28), the first duct (24) and the second duct forming an inlet duct and an outlet duct of the valve assembly, and the clamping piece () delimiting an inlet opening (34) and an outlet opening (35) of the exchanger (1), the flap (33) in the connecting position placing the inlet duct and the outlet duct of the valve assembly in communication with the inlet duct and the outlet duct of the exchanger respectively, and the flap in the bypass position placing the inlet duct of the valve assembly in direct communication with the outlet duct of the valve assembly.
  7. Valve assembly according to Claim 6, in which the second duct (28) is delimited by the valve body (21).
  8. Valve assembly according to Claim 1, in which the clamping piece (30) is thermally conducting and is designed to form a thermal bridge between the valve body (21) and the exchanger (1).
  9. Heat exchange device comprising an exchanger (1) and a valve assembly (2) in accordance with any one of the preceding claims.
EP07858454.7A 2006-10-27 2007-10-16 Egr/by pass valve unit and heat exchanger device provided with such a valve unit Active EP2084388B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0609479A FR2907885B1 (en) 2006-10-27 2006-10-27 THERMAL EXCHANGER HAVING AN EXTRUDED BODY
FR0611421A FR2907890B1 (en) 2006-10-27 2006-12-26 EGR-BY PASS VALVE ASSEMBLY AND THERMAL EXCHANGE DEVICE EQUIPPED WITH SUCH VALVE ASSEMBLY.
PCT/FR2007/001693 WO2008053091A1 (en) 2006-10-27 2007-10-16 Egr/by pass valve unit and heat exchanger device provided with such a valve unit

Publications (2)

Publication Number Publication Date
EP2084388A1 EP2084388A1 (en) 2009-08-05
EP2084388B1 true EP2084388B1 (en) 2017-08-16

Family

ID=39103268

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07858454.7A Active EP2084388B1 (en) 2006-10-27 2007-10-16 Egr/by pass valve unit and heat exchanger device provided with such a valve unit

Country Status (3)

Country Link
EP (1) EP2084388B1 (en)
FR (1) FR2907890B1 (en)
WO (1) WO2008053091A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3121204A1 (en) * 2021-03-26 2022-09-30 Cap Profile Process for manufacturing a heat exchanger, heat exchanger obtained by such a process, floor element and floor comprising such a heat exchanger

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5074317B2 (en) * 2008-07-16 2012-11-14 愛三工業株式会社 Flow path switching valve
US20170260931A1 (en) * 2016-03-10 2017-09-14 Denso International America, Inc. Evaporative Emission Control System
GB2549121B (en) * 2016-04-06 2019-06-12 Jaguar Land Rover Ltd Valve arrangement for an energy recovery unit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT411546B (en) * 1998-01-15 2004-02-25 Man Steyr Ag LIQUID-COOLED INTERNAL COMBUSTION ENGINE WITH EXHAUST GAS RECIRCULATING DEVICE AND DEVICE FOR COOLING RECYCLED EXHAUST
GB0001283D0 (en) * 2000-01-21 2000-03-08 Serck Heat Transfer Limited Twin flow valve gas cooler
JP4269946B2 (en) * 2003-09-05 2009-05-27 株式会社デンソー Exhaust gas recirculation device
DE10346250B4 (en) * 2003-10-06 2018-01-04 Bayerische Motoren Werke Aktiengesellschaft Exhaust gas cooler with a bypass
DE102004019554C5 (en) * 2004-04-22 2014-03-27 Pierburg Gmbh Exhaust gas recirculation system for an internal combustion engine

Non-Patent Citations (1)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3121204A1 (en) * 2021-03-26 2022-09-30 Cap Profile Process for manufacturing a heat exchanger, heat exchanger obtained by such a process, floor element and floor comprising such a heat exchanger

Also Published As

Publication number Publication date
WO2008053091A1 (en) 2008-05-08
FR2907890A1 (en) 2008-05-02
FR2907890B1 (en) 2015-02-27
EP2084388A1 (en) 2009-08-05

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