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EP2273095B1 - Echangeur thermique, système de recyclage des gaz d'échappement et moteur à combustion interne - Google Patents

Echangeur thermique, système de recyclage des gaz d'échappement et moteur à combustion interne Download PDF

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Publication number
EP2273095B1
EP2273095B1 EP09290561.1A EP09290561A EP2273095B1 EP 2273095 B1 EP2273095 B1 EP 2273095B1 EP 09290561 A EP09290561 A EP 09290561A EP 2273095 B1 EP2273095 B1 EP 2273095B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
working fluid
filter
flange
fluid filter
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
EP09290561.1A
Other languages
German (de)
English (en)
Other versions
EP2273095A1 (fr
Inventor
Jérôme GENOIST
Hermann Knaus
MATTHIAS SCHüLE
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.)
Mahle Behr GmbH and Co KG
Mahle Behr France Rouffach SAS
Original Assignee
Behr GmbH and Co KG
Behr France Rouffach 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 Behr GmbH and Co KG, Behr France Rouffach SAS filed Critical Behr GmbH and Co KG
Priority to EP13181477.4A priority Critical patent/EP2667007B1/fr
Priority to EP09290561.1A priority patent/EP2273095B1/fr
Publication of EP2273095A1 publication Critical patent/EP2273095A1/fr
Application granted granted Critical
Publication of EP2273095B1 publication Critical patent/EP2273095B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/01—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using means for separating solid materials from heat-exchange fluids, e.g. filters
    • 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
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/35—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with means for cleaning or treating the recirculated gases, e.g. catalysts, condensate traps, particle filters or heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/04—Cooling of air intake supply
    • F02B29/045—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly
    • F02B29/0462—Liquid cooled heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/04—Cooling of air intake supply
    • F02B29/045—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly
    • F02B29/0475—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly the intake air cooler being combined with another device, e.g. heater, valve, compressor, filter or EGR cooler, or being assembled on a special engine location
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/024—Air cleaners using filters, e.g. moistened
    • 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

Definitions

  • the invention relates to a heat exchanger for heat exchange between a working fluid on the one hand and a cooling fluid on the other hand and with a working fluid filter, wherein the heat exchanger comprises: a heat exchanger block for implementing the heat exchange; at least one connecting line for the working fluid.
  • the invention also leads to a favorable exhaust gas recirculation system and an internal combustion engine, in particular a diesel internal combustion engine.
  • the reduction of nitrogen oxides in exhaust gases of an internal combustion engine can be achieved particularly effectively in the context of exhaust gas recirculation.
  • This approach has been in the context of increasingly restrictive emission standards especially important for an internal combustion engine.
  • the compression of the working fluid is achieved by means of a compressor. It has been found that the working fluid acted upon parts of a compressor are susceptible to wear. This applies in particular to diesel internal combustion engines whose exhaust gas to be used as the working fluid is particle-laden to a relatively high degree. The particles can not only settle on surfaces of the compressor and affect its function, but also wear so much by their impulse action applied to working fluid surfaces of the compressor that it may need to be replaced early.
  • the particulate charge of the exhaust gas can persist despite a diesel particulate filter, as it is subject to aging and especially in the context of regeneration increased particulate entry into the exhaust gas can not be prevented.
  • the invention begins, whose task is to provide a device by means of which the particle load in a working fluid of an internal combustion engine can be reduced and in which nevertheless a space requirement for the filter is kept relatively small or uncritical.
  • a fluidically advantageous integration of the filter is to take place, advantageously with a comparatively low pressure loss.
  • the handling of the filter should also be possible in a simplified manner.
  • the object is achieved by the invention by means of a heat exchanger of the type mentioned, is mounted according to the invention for integration of the working fluid filter in the heat exchanger of the working fluid filter between heat exchanger block on the one hand and connecting line on the other hand, wherein the connecting line connected to the heat exchanger block
  • the heat exchanger block preferably has a core with a number of flow passages through which the first fluid can flow, and a chamber receiving the flow passages, through which the second fluid can flow, in a housing.
  • the structure of the heat exchanger block is not limited to this preferred form.
  • the core may also have a bottom which receives the flow channels and keeps them frame-like spaced.
  • a connecting line following the concept of the invention, can be fastened to the housing and / or to the floor.
  • the heat exchanger block accordingly have: a core for separate heat exchanging guidance of the working fluid and the cooling fluid; a core receiving, permeable by the cooling fluid housing; wherein the working fluid filter between the housing or core on the one hand and connecting line on the other hand is mounted, wherein the connecting line is connected to the housing or core.
  • a working fluid filter integrated in this manner in the heat exchanger is accommodated in a particularly space-saving manner.
  • the heat exchanger can be offered together with the working fluid filter as a module.
  • the concept of the invention enables a fluidically particularly advantageous integration of the working fluid filter in the working fluid guide.
  • a working fluid filter is not only particularly easy to replace, but also relatively easy to permanently remove in the event that no working fluid filter in the heat exchanger module is required. This is due to the fact that the connecting line is connected to the heat exchanger block and if necessary, the working fluid filter just between the heat exchanger block on the one hand and the connecting line on the other hand can be omitted - or held if necessary.
  • connection line is particularly advantageously formed with a connection flange.
  • a connecting flange substantially facilitates the connection to the heat exchanger block with attachment of the working fluid filter.
  • the connection flange is formed with a diffuser.
  • the diffuser basically has flow comparison properties for the working fluid.
  • the diffuser has a sufficient internal space which is suitable for being able to attach a filter shaped to this effect.
  • connection line can be an inlet and / or outlet line. It has proved to be particularly advantageous that the working fluid filter is mounted on Häffuideinlassseite the heat exchanger between the heat exchanger block and a supply line. In principle, moreover, additionally or alternatively, the working fluid filter can also be mounted on the working fluid outlet side of the heat exchanger between the heat exchanger block and a discharge line.
  • the working fluid filter has a filter surface which is flat.
  • a flat filter surface has an advantageously small space requirement and is advantageous in terms of flow or in particular has a comparatively low pressure loss.
  • the working fluid filter may have a filter surface which is non-flat.
  • this may be a curved filter surface, preferably a dome-shaped filter surface.
  • the shape of the curved filter surface can be designed overall such that it has a diffuser-like effect. Basically, the shape of the filter surface can be designed fluidically optimized.
  • the working fluid filter is designed for axial flow with advantage.
  • the lowest possible pressure loss in the working fluid filter is achieved, for example by largely avoiding a radial flow component in the working fluid filter.
  • the working fluid filter has a flange which is mounted between a flange of the connecting line and a flange of the heat exchanger core. Due to the flange connection of the working fluid filter, the same can be attached, in particular fixed, under positive locking, frictional connection or the like between the flanges of the heat exchanger core or the connection line.
  • the flange can be free of connecting means or have suitable connecting means, if necessary also holes or the like. For connecting means.
  • the working fluid filter can be realized with a flange in the form of a gasket, particularly in the form of a metallic gasket particularly advantageous.
  • the filter surface of the working fluid filter can be advantageously connected by a joint connection with the flange.
  • a joint connection can be provided in particular in the form of a welding and / or solder joint.
  • the working fluid filter with filter surface and flange can also be made in one piece or the filter surface can be frictionally, for example, clamped, connected to the flange.
  • the connection the pressure and flow conditions at the installation point of the working fluid filter can be suitably taken into account.
  • the flange of the working fluid filter can be attached by means of a tongue and groove connection between a connecting flange of the connecting line and a counter flange of the heat exchanger block.
  • the flange may have a spring and / or groove as a connecting means.
  • the flange can act like a seal.
  • the sealing effect is not absolutely necessary.
  • the tongue and groove connection has the advantage that the working fluid filter can be held comparatively securely and avoiding expensive connecting means between the connecting line and the heat exchanger blvck.
  • the heat exchanger is advantageously designed as a low-pressure heat exchanger. It has been found that, especially in the low pressure range of exhaust gas recirculation, a working fluid filter can be integrated in a space-saving manner in the heat exchanger according to the concept of the invention.
  • the concept of the invention for solving the problem also leads to an internal combustion engine, in particular a diesel internal combustion engine, with an exhaust gas recirculation system of the aforementioned type.
  • Fig. 1A shows a heat exchanger 10 in the form of a low-pressure heat exchanger for incorporation into an exhaust gas recirculation system downstream of a particulate filter and upstream of a compressor for the working fluid.
  • the heat exchanger 10 has a heat exchanger block 11 with a housing 12 and a housing 12, not shown core for separate and heat exchanging guidance of a working fluid AF and a cooling fluid KF.
  • the housing 12 which can be flowed through by the cooling fluid KF is supplied to it via inlet and outlet ports 13.1, 13.2, wherein the cooling fluid KF is shown symbolically by arrows.
  • the working fluid AF which is also shown symbolically by arrows, is provided to a number of flow passages 21 (FIG. Fig.
  • the working fluid AF is supplied to the heat exchanger 10 via a first connecting line 14.1 in the form of a feed line and discharged via a second connecting line 14.2 in the form of a discharge line.
  • the connection line 14.1 has a diffuser 15, an expansion element 16 in the form of a bellows and an upstream connecting flange 17 facing away from the heat exchanger and a connecting flange 18 facing the heat exchanger 10.
  • a working fluid filter 1 is integrated in the heat exchanger 10, which is mounted between the heat exchanger block 11 on the one hand and the connecting line 14.1 on the other hand, wherein the connecting line 14.1 is connected to the heat exchanger block 11.
  • the diffuser 15 serves one flow-equal supply of the working fluid - in the present case in the form of exhaust gas of a diesel internal combustion engine - from the connecting line 14.1 and is formed in the form of a funnel-like element.
  • Fig. 1B shows the same heat exchanger 10 without the connection line 14.1, so that the working fluid filter 1 can be seen.
  • the working fluid filter 1 has a flat filter surface 2 and a in Fig. 1A recognizable flange 3, which flange 3 is clamped between the connecting flange 18 of the connecting line 14.1 and the mating flange 19 of the heat exchanger block 11 by means of screw S.
  • the working fluid filter 1 is formed with a flange 3 in the form of a metallic sealing collar, wherein the filter surface 2 is welded into the flange 3.
  • the working fluid filter 1 is provided on the one hand with a filter function and on the other with a sealing function.
  • the filter surface 2 is advantageously not only designed to save space in a space-saving manner, but can also be effectively accommodated in the funnel-shaped interior of the funnel of the diffuser 15.
  • the flat design of the filter surface 2 is streamlined in the area of equalization of the flow of the working fluid, i. in the funnel-shaped interior of the diffuser 15, arranged.
  • the flat filter surface 2 is flowed through axially by the working fluid AF, which results in a particularly low pressure loss.
  • the working fluid filter 1 can not only easily replace, but also if necessary permanently removed that instead of a gasket with filter, namely the working fluid filter 1, only a simple gasket without filter is used.
  • FIG. 2A and Fig. 2B show analogously a second embodiment of a heat exchanger 20 - again in Fig. 2A with a connection line 14.1 and in Fig. 2B without a connecting cable 14.1.
  • Fig. 2B In addition, the view I on the working fluid filter 1 is shown enlarged in II.
  • the heat exchanger 20 differs from the heat exchanger 10 in the arrangement of the inlet and outlet nozzles 13.1, 13.2 for the cooling fluid KF.
  • the connection line 14.1 as a supply line and the connecting line 14.2 with a diffuser 15.1, 15.2 is set up.
  • Fig. 2B again shows the working fluid filter 1 with a flat filter surface 2, which is flowed through axially, and with a formed in the form of a gasket flange 3, which is analogous to the embodiment of a heat exchanger 10 in Fig. 1A, Fig. 1B , is clamped with screw S between the connection flange 18 of the connection line 14.1 and the mating flange 19 of the heat exchanger block 11.
  • a gasket 4 is clamped between the heat exchanger block 11 and the connection line 14.2, namely the corresponding flanges of the outlet side, on the working fluid outlet side of the heat exchanger 20.
  • the gasket 4 may - as needed - similar to the gasket 3 wear a Fütter Structure or be used without filter surface.
  • the embodiment of a heat exchanger 20 can thus be a working fluid filter 1 as needed integrate the input side of the heat exchanger 20 and the output side of the heat exchanger 20.
  • FIG. 3 shows the constructive detail of a Fig. 1A, Fig. 1B shown heat exchanger 10 without housing 12.
  • This will in addition to the - in Fig. 4 enlarged and perspectively illustrated working fluid filter 1 - the flow channels 21 recognizable, one of which is representatively represented as a flat tube.
  • the flow channels 21 formed as flat tubes are each held in a bottom 22 of the heat exchanger core, which for example Having trained as passages openings 23 for receiving a flat tube.
  • Fig. 5 shows a to the working fluid filter 1 of Fig. 4 alternative embodiment of a working fluid filter 5.1 with a curved filter surface 6 and a simple flange 7, which also has openings 8. These can be penetrated by aforementioned screw connections S during installation of the working fluid filter 5, for example in a heat exchanger 10 or in a heat exchanger 20.
  • the curved filter surface 6 of the working fluid filter 5.1 has the advantage that this can take over diffuser function and thus contributes to the flow equalization.
  • FIG. 6 An exemplary installation possibility of a slightly modified working fluid filter 5.2 on an output side of a heat exchanger is in Fig. 6 shown.
  • the working fluid filter 5.2 is also flowed through axially and a diffuser-like effect for the working fluid AF is effected via the curved filter surface 6.
  • the shape of the working fluid filter 5.2 which is varied in the region of the flange 7, can be seen enlarged.
  • the working fluid filter 5.2 has in the region of the flange 7, a spring 9, which, as from view II of Fig.
  • a tongue and groove connection 24 allows a particularly safe and yet easy integration of the working fluid filter 5.2 in the heat exchanger.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Exhaust-Gas Circulating Devices (AREA)

Claims (14)

  1. Echangeur de chaleur (10, 20), en particulier échangeur de chaleur à basse pression, servant à l'échange de chaleur entre un fluide de travail (AF) d'une part, en particulier des gaz d'échappement et/ou un air de suralimentation, et un fluide de refroidissement (KF) d'autre part, en particulier un moyen de refroidissement, et comprenant un filtre de fluide de travail (1, 5, 5.1, 5.2), où l'échangeur de chaleur (10, 20) présente:
    - un bloc échangeur de chaleur (11) servant à la transformation de l'échange de chaleur;
    - au moins une conduite de raccordement (14.1, 14.2) pour le fluide de travail (AF);
    caractérisé en ce que, pour l'intégration du filtre de fluide de travail (1, 5, 5.1, 5.2) dans l'échangeur de chaleur (10, 20), le filtre de fluide de travail (1, 5, 5.1, 5.2) est placé entre le bloc échangeur de chaleur (11) d'une part, et la conduite de raccordement (14.1, 14.2) d'autre part, où la conduite de raccordement (14.1, 14.2) est raccordée au bloc échangeur de chaleur (11), où le filtre de fluide de travail (1, 5, 5.1, 5.2) présente une bride (3, 7) qui est placée entre une bride de raccordement (18) de la conduite de raccordement (14.1, 14.2), et une contre-bride (19) du bloc échangeur de chaleur (11).
  2. Echangeur de chaleur (10, 20) selon la revendication 1, caractérisé en ce que le bloc échangeur de chaleur (11) présente:
    - une partie centrale servant au guidage et assurant l'échange de chaleur du fluide de travail (AF) et du fluide de refroidissement (KF), les deux fluides étant guidés séparément l'un de l'autre;
    - un carter (12) logeant la partie centrale et pouvant être traversé par le fluide de refroidissement (KF);
    où le filtre de fluide de travail (1, 5, 5.1, 5.2) est placé entre le carter (12) ou la partie centrale d'une part, et la conduite de raccordement (14.1, 14.2) d'autre part, et où la conduite de raccordement (14.1, 14.2) est raccordée au carter (12) ou à la partie centrale.
  3. Echangeur de chaleur (10, 20) selon la revendication 1 ou 2, caractérisé en ce que la conduite de raccordement est formée en ayant une bride de raccordement (18), en particulier en ayant une bride de raccordement (18) comportant un diffuseur (15, 15.1, 15.2).
  4. Echangeur de chaleur (10, 20) selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la conduite de raccordement est une conduite d'alimentation et/ou d'évacuation (14.1, 14.2).
  5. Echangeur de chaleur (10, 20) selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le filtre de fluide de travail (1, 5, 5.1, 5.2) est placé, sur le côté entrée du fluide de travail de l'échangeur de chaleur (10, 20), entre un carter (12) et une conduite d'alimentation (14.1).
  6. Echangeur de chaleur (10, 20) selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le filtre de fluide de travail (1, 5, 5.1, 5.2) est placé, sur le côté sortie du fluide de travail de l'échangeur de chaleur (10, 20), entre le carter (12) et une conduite d'évacuation (14.2).
  7. Echangeur de chaleur (10, 20) selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le filtre de fluide de travail (1, 5, 5.1, 5.2) présente une surface de filtre (2) qui est configurée en étant plate.
  8. Echangeur de chaleur (10, 20) selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le filtre de fluide de travail (1, 5, 5.1, 5.2) présente une surface de filtre (6) qui est configurée en n'étant pas plate, en particulier ayant une surface de filtre bombée (6), de préférence ayant une surface de filtre (6) en forme de calotte.
  9. Echangeur de chaleur (10, 20) selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le filtre de fluide de travail (1, 5, 5.1, 5.2) est configuré pour le passage axial de l'écoulement.
  10. Echangeur de chaleur (10, 20) selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le filtre de fluide de travail (1, 5, 5.1, 5.2) comprend une bride (3, 7) se présentant sous la forme d'une manchette d'étanchéité, en particulier sous la forme d'une manchette d'étanchéité métallique.
  11. Echangeur de chaleur (10, 20) selon l'une quelconque des revendications 1 à 10, caractérisé en ce qu'une surface de filtre (2, 6) du filtre de fluide de travail (1, 5, 5.1, 5.2) est assemblée avec une bride (3, 7) du filtre de fluide de travail, grâce à un assemblage par liaison jointive, en particulier en procédant par soudage et/ou par brasage, ou bien en formant une seule et même pièce, ou bien en réalisant un assemblage par action de force, en particulier par serrage.
  12. Echangeur de chaleur (10, 20) selon l'une quelconque des revendications 1 à 11, caractérisé en ce qu'une bride (3, 7) du filtre de fluide de travail (1, 5, 5.1, 5.2) est placée, au moyen d'un assemblage par emboîtement mâle / femelle (24), entre une bride de raccordement (18) de la conduite de raccordement (14.1, 14.2), et une contre-bride (19) de la partie centrale (11) de l'échangeur de chaleur.
  13. Système de recyclage des gaz d'échappement présentant:
    un filtre à particules pour un fluide de travail (AF) placé en aval d'une conduite de sortie du fluide de travail d'un moteur à combustion interne;
    un échangeur de chaleur (10, 20) réalisé selon l'une quelconque des revendications précédentes et placé en aval du filtre à particules;
    un compresseur prévu pour le fluide de travail (AF) et placé en aval de l'échangeur de chaleur (10, 20) et en amont d'une conduite d'entrée du fluide de travail d'un moteur à combustion interne.
  14. Moteur à combustion interne, en particulier moteur diesel à combustion interne, comportant un système de recyclage des gaz d'échappement selon la revendication 13.
EP09290561.1A 2009-07-10 2009-07-10 Echangeur thermique, système de recyclage des gaz d'échappement et moteur à combustion interne Active EP2273095B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP13181477.4A EP2667007B1 (fr) 2009-07-10 2009-07-10 Echangeur thermique, système de recyclage des gaz d'échappement et moteur à combustion interne
EP09290561.1A EP2273095B1 (fr) 2009-07-10 2009-07-10 Echangeur thermique, système de recyclage des gaz d'échappement et moteur à combustion interne

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CN102619648B (zh) * 2012-03-21 2014-06-04 浙江银轮机械股份有限公司 一种具有隔热功能的板翅式egr冷却器
DE102013208436A1 (de) 2013-05-08 2014-11-13 MAHLE Behr GmbH & Co. KG Abgaskühler
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DE102015225732A1 (de) * 2015-12-17 2017-06-22 Volkswagen Aktiengesellschaft Filter zum Entfernen von Partikeln aus einem Fluidstrom in einer Fluidleitung einer Brennkraftmaschine
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EP2273095A1 (fr) 2011-01-12
EP2667007A1 (fr) 2013-11-27

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