WO2018104506A1 - Heat exchanger, in particular a charge air heat exchanger for a motor vehicle - Google Patents

Heat exchanger, in particular a charge air heat exchanger for a motor vehicle Download PDF

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Publication number
WO2018104506A1
WO2018104506A1 PCT/EP2017/081985 EP2017081985W WO2018104506A1 WO 2018104506 A1 WO2018104506 A1 WO 2018104506A1 EP 2017081985 W EP2017081985 W EP 2017081985W WO 2018104506 A1 WO2018104506 A1 WO 2018104506A1
Authority
WO
WIPO (PCT)
Prior art keywords
exchanger
transfer fluid
heat transfer
heat
outlet
Prior art date
Application number
PCT/EP2017/081985
Other languages
French (fr)
Inventor
Zoulika SOUKEUR
José BORGES-ALEJO
Anne-Sylvie Magnier-Cathenod
Carlos Martins
Philippe Jouanny
Bertrand Gessier
Original Assignee
Valeo Systemes Thermiques
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Systemes Thermiques filed Critical Valeo Systemes Thermiques
Priority to CN201780086029.8A priority Critical patent/CN110300877B/en
Priority to EP17828858.5A priority patent/EP3551953A1/en
Publication of WO2018104506A1 publication Critical patent/WO2018104506A1/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
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • F28D7/0075—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with particular circuits for the same heat exchange medium, e.g. with the same heat exchange medium flowing through sections having different heat exchange capacities or for heating or cooling the same heat exchange medium at different temperatures
    • 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
    • F02B29/0406—Layout of the intake air cooling or coolant circuit
    • F02B29/0418—Layout of the intake air cooling or coolant circuit the intake air cooler having a bypass or multiple flow paths within the heat exchanger to vary the effective heat transfer surface
    • 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
    • F02B29/0406—Layout of the intake air cooling or coolant circuit
    • F02B29/0437—Liquid cooled heat exchangers
    • F02B29/0443—Layout of the coolant or refrigerant circuit
    • 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
    • F02B29/0493—Controlling the air charge temperature
    • 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
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • F28D7/0083—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with units having particular arrangement relative to a supplementary heat exchange medium, e.g. with interleaved units or with adjacent units arranged in common flow of supplementary heat exchange medium
    • F28D7/0091—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with units having particular arrangement relative to a supplementary heat exchange medium, e.g. with interleaved units or with adjacent units arranged in common flow of supplementary heat exchange medium the supplementary medium flowing in series through the units
    • 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
    • F28D7/16—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 being arranged in parallel spaced relation
    • F28D7/1684—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 being arranged in parallel spaced relation the conduits having a non-circular cross-section
    • 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
    • F28D7/16—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 being arranged in parallel spaced relation
    • F28D7/1684—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 being arranged in parallel spaced relation the conduits having a non-circular cross-section
    • F28D7/1692—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 being arranged in parallel spaced relation the conduits having a non-circular cross-section with particular pattern of flow of the heat exchange media, e.g. change of flow direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0093—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • 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
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
    • F02M26/06—Low pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust downstream of the turbocharger turbine and reintroduced into the intake system upstream of the compressor
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • Heat exchanger in particular a charge air exchanger for a motor vehicle
  • the present invention relates to a heat exchanger, in particular a charge air exchanger for a motor vehicle.
  • the invention relates in particular to the thermal management of the intake air of an internal combustion engine of a motor vehicle and more particularly of a turbocharged combustion engine and having a heat exchanger within the engine circuit. air intake.
  • an engine including diesel diesel has difficulties in starting and temperature rise compared to a gasoline engine. Indeed, a heating time is necessary before the exhaust gases have a sufficient temperature so that the exhaust gas treatment devices such as the catalyst can be completely effective.
  • a known solution in the case of a vehicle equipped with a turbocharger and a heat exchanger placed in the air intake circuit for cooling the intake air is to bypass said heat exchanger via a bypass circuit so that the exhaust gases rise in temperature more quickly.
  • the vehicle is also equipped with an exhaust gas recirculation system, it is also known to use a bypass circuit to bypass a heat exchanger placed in said exhaust gas recirculation system and bring the hot exhaust gas into the air intake circuit.
  • Another known solution is to directly heat the air intake air in the bypass circuit of the heat exchanger of the air intake circuit, by means of an electric heater as described in the application DE 10 2007 029 036 A1, or by means of a second heat exchanger always placed in the bypass circuit of the heat exchanger. heat of the air intake circuit and connected to a heat exchanger placed in an exhaust gas recirculation system, as described in the application DE 10 2007 005 246 A1.
  • Patent application WO 2014 096132 also discloses a thermal management device.
  • the present invention aims in particular to improve the devices described above.
  • the subject of the invention is thus a heat exchanger for a device for the thermal management of the intake air of an internal combustion engine, this device being in particular equipped with a turbocharger, the exchanger being arranged to be placed in a air intake circuit between the turbocharger and the engine, the exchanger comprising:
  • a heat exchange bundle in particular comprising plates or tubes, comprising channels for circulating a heat transfer fluid
  • an intermediate outlet arranged to allow the coolant to circulate in only part of the channels of the bundle, between the inlet and this intermediate outlet.
  • the intermediate outlet is placed opposite the inlet in particular so as to form a circulating configuration of the heat transfer fluid I.
  • the intermediate outlet is placed between the inlet and the outlet in particular so as to form a circulation configuration of the heat transfer fluid in U.
  • the exchanger can thus have two modes of operation.
  • a cooling mode of the intake air the arrival of the heat transfer fluid is effected by the entry and the evacuation through the outlet. All the beam is used.
  • this cooling mode if desired, alternatively, only a portion of the beam is used.
  • the arrival of the coolant is effected by the entry and the evacuation via the intermediate outlet. Only part, especially half, of the beam is then used. The energy provided by the water is thus concentrated on the second half of the beam. It is thus possible to refine the thermal management strategy according to the engine need.
  • the division of the beam makes it possible to reduce the pressure drop on the coolant side.
  • At least one of the channels of the beam is formed between two plates.
  • the exchanger comprises channels arranged in stages and, for at least one of these stages, in particular for all stages, the exchanger comprises a single channel.
  • the exchanger comprises channels arranged in stages and, for at least one of these stages, in particular for all stages, the exchanger comprises at least two separate channels each having its own inlet and its own outlet.
  • the channels of the same stage are formed between two pairs of distinct plates.
  • the space between the two pairs of plates forms a thermal insulation between the two neighboring channels.
  • the number of channels per stage can be two, three or more, so that the heat exchange bundle is split into two, three or more. These two or three parts of the beam can be used selectively depending on the needs of the combustion engine.
  • the exchanger is sized for the full load of the combustion engine.
  • the exchanger is therefore oversized most of the time. Sharing the beam, for example by using only one third or two thirds heat transfer liquid side, allows to use only a sufficient portion for the heating of the intake air and thus reduce the pressure drop on the liquid side.
  • the invention can also be applied to the cooling mode.
  • the part of the beam used for the heating of the intake air is on the air outlet side to reduce heat losses in the part of the air inlet side beam. intake.
  • the exchanger comprises an actuator arranged to control the passage of the heat transfer fluid selectively in all or part of the beam.
  • this actuator can be deported in the tubing of the liquid out of the exchanger.
  • the actuator comprises a movable shutter, for example mobile in translation, which according to its position causes or not the closure of the intermediate outlet and thus the flow of heat transfer fluid throughout the beam or in only half of the beam.
  • This actuator can be directly integrated into the exchanger beam. When the actuator is integrated into the beam, it is placed in the blade heads of the intermediate outlet.
  • the actuator comprises a shutter partially made of wax for example, which, in its dilated or unexpanded position, causes or not the closure of the intermediate outlet by a plug, and thus the flow of the heat transfer fluid throughout the beam or in only half of the beam.
  • the actuator may comprise a thermostatic element, so as to form for example a thermostatic valve, or an electrically controlled element that moves linearly or in translation movement.
  • An electrically controlled element has the advantage of having a faster response time.
  • the electrical element may also be in the form of a pivoting element.
  • the temperature of the liquid or coolant that passes through the exchanger is the temperature of the liquid or coolant that passes through the exchanger.
  • An additional mode of use of the exchanger can be defined, namely a staged cooling of the intake air: First stage of cooling: The first part of the beam is fed by the coolant of the engine (high temperature loop for example at 90X)
  • Second stage of cooling The second part of the beam is fed by the coolant of the low temperature loop (low temperature loop for example at 35 ⁇ )
  • the heat exchange bundle comprises tubes in which the coolant circulates. This can be used instead of the plates.
  • the heat exchanger may comprise an actuator that makes it possible to switch from one operating mode to another.
  • This actuator can be offset in the liquid tubes or directly integrated in the exchanger beam.
  • a wall is added to the bundle, which wall is substantially in the form of a half-shell, the actuator being placed in this wall.
  • FIG. 1A shows a schematic representation of an internal combustion engine and its device for thermal management of the intake air
  • FIGS. 1 to 4 illustrate various examples of partitioning the beam according to the invention
  • FIGS. 5 to 7 illustrate an embodiment of the invention
  • FIGS. 8 to 10 illustrate another embodiment of the invention using plates
  • FIGS. 11 to 13 illustrate yet another embodiment of the invention
  • FIGS. 14 to 18 illustrate other embodiments of the invention using tubes.
  • FIG. 1A shows a schematic representation of a combustion engine 3 equipped with a turbocharger 5 and its thermal management device 1 of the intake air.
  • the engine 3 in particular a diesel engine, comprises an air intake circuit 9 which supplies the air for combustion inside the cylinders, as well as a main exhaust line 12 for the evacuation of gases from the engine. exhaust.
  • the engine 3 also comprises a turbocharger 5 comprising a turbine 5b placed in the main exhaust line 12 and a compressor 5a placed in the air intake circuit 9.
  • the main exhaust line 12 may also include, downstream of the turbine 5b, exhaust gas treatment devices 16, for example a catalyst and / or a particulate filter.
  • the thermal management device 1 comprises, placed in the air intake circuit 9 between the compressor 5a and the engine 3, a first heat exchanger 7 having an inlet 7a and an outlet 7b of heat transfer fluid.
  • the thermal management device 1 also comprises a second heat exchanger 10 placed on the main exhaust line 12 of the engine 3 and capturing the heat energy of the exhaust gases, transferring said energy to a heat transfer fluid, in particular the water circulating in a heating loop A from an outlet 10b of coolant to the heat transfer fluid inlet 7a of the first heat exchanger 7 with which it is connected.
  • the heating loop A is then formed by the direct or indirect connection of the heat transfer fluid outlet 7b of the first heat exchanger 7 and the heat transfer fluid inlet 10a of the second heat exchanger 10.
  • the exchanger 10 may be replaced by any other heat source for the refrigerant circulating in a WCAC.
  • This heat source is for example a high temperature part of the heat engine.
  • the thermal management device 1 further comprises a pump 24 for circulating the coolant in the circulation of the heat transfer fluid inside the heating loop A.
  • the thermal management device 1 may also include an exhaust gas recovery system.
  • the main exhaust line 12 thus comprises a bypass of the exhaust gas placed downstream of the turbine 5b and the exhaust gas treatment devices 16 and opening into the air intake circuit 9 upstream of the compressor 5a.
  • the opening and closing of the exhaust gas recovery system 14 are controlled by a valve 140 which regulates the flow of exhaust gas entering the exhaust gas recovery system 14.
  • the second heat exchanger 10 is placed between the turbine 5b and the bypass 141 of the exhaust gas recovery system 14, preferably downstream of the gas treatment devices. 16. This ensures the efficiency and temperature rise of the exhaust gas treatment devices because the exhaust gas through them have not been subjected to heat removal by the second heat exchanger heat.
  • This placement of the second heat exchanger 10 between the turbine 5b and the bypass 141 of the exhaust gas recovery system 14 allows the second heat exchanger 10 to also act as a heat exchanger for the gas recovery system. exhaust system 14 and thus cool if necessary the exhaust gas intended to return to the air intake circuit 9.
  • the placement of the second exchanger directly on the main exhaust line 12 allows, in this case. In this case, it is possible to recover heat energy from the exhaust gas even if the exhaust gas recovery system 14 is closed.
  • bypass the second exchanger 10 via a bypass circuit 18 placed on the main exhaust line. 12 and whose opening and closing are controlled by a valve 180.
  • the first heat exchanger 7 can also play the known role of intake air cooler if the latter is too hot for combustion in the cylinders of the engine 3 and thus increase by cooling the intake air intake amount to the cylinders.
  • the first heat exchanger 7 is also connected to a cooling loop.
  • This cooling loop connects the heat transfer fluid outlet 7b of the first heat exchanger 7 to the heat transfer fluid inlet of a radiator low temperature and connects the heat transfer fluid outlet of said low temperature radiator to the heat transfer fluid inlet 7a of the first heat exchanger 7.
  • the heat exchanger 7 comprises:
  • a heat exchange bundle 32 comprising channels 31 for circulating a heat transfer fluid
  • an intermediate outlet 30 arranged to allow the coolant to circulate in only part of the channels 31 of the bundle, between the inlet 7a and this intermediate outlet 30.
  • the intermediate outlet 30 is placed in front of the inlet 7a in particular so as to form a circulating configuration of the heat transfer fluid at I, as illustrated in FIG.
  • the intermediate outlet 30 is placed between the inlet 7a and the outlet 7b so as to form a circulating configuration of the heat transfer fluid in a U-shape, as can be seen in FIG.
  • the exchanger 7 can thus have two modes of operation.
  • the arrival of the heat transfer fluid is effected by the entry and the evacuation through the outlet 7b. All the beam is used.
  • the arrival of the coolant is effected by the inlet 7a and the evacuation via the intermediate outlet 30. Only half of the beam is then used.
  • the exchanger comprises channels 31 arranged in stages and, for each of these stages, the exchanger comprises a single channel, as is the case for the examples of Figures 1 and 2.
  • the exchanger comprises channels arranged in stages and, for each of these stages, the exchanger comprises two separate channels each having its own inlet 7a and its own outlet 7b, as illustrated in FIG.
  • the channels 31 of the bundle are formed between two plates 39, as can be seen in FIG.
  • the channels of the same stage are formed between two pairs of distinct plates 35 and 36, as for example illustrated in FIG.
  • the exchanger In cooling mode, the exchanger is sized for the full load of the combustion engine. However, it is not a very recurring operating point, the exchanger is therefore oversized most of the time. Sharing the beam, for example by using only one third or two thirds heat transfer liquid side, allows to use only a sufficient portion for the heating of the intake air and thus reduce the pressure drop on the liquid side.
  • the portion 32a of the harness used for heating the intake air is on the air outlet side to reduce the heat losses in the inlet side portion of the intake air, as shown in FIG. Figure 4.
  • the exchanger 7 comprises an actuator 40 arranged to control the passage of the coolant selectively in all or part of the beam, as best seen in Figure 6.
  • This actuator 40 can be deported in the tubings of the liquid out of the exchanger, as illustrated in FIGS. 5 and 6.
  • the actuator 40 comprises a movable shutter 41, for example movable in translation, which according to its position causes or not the closing of the outlet intermediate and thus the flow of heat transfer fluid throughout the beam or in only half of the beam.
  • the exchanger 7 comprises a cover 42 closing the beam 32, cover which carries the inlet and outlet pipes and the actuator.
  • the coolant circulates between the inlet 7a and the intermediate outlet 30 (see the arrows indicating this direction of circulation). ) so that the heat transfer fluid circulates in only half of the beam 32.
  • the heat transfer fluid circulates between the inlet 7a and the outlet 7b (see the arrows indicating this direction of circulation), without leaving the intermediate outlet, so that the coolant circulates in all the beam.
  • FIGS. 8 to 10 show another embodiment of the invention, with an actuator 50 directly integrated in the beam 32 of the exchanger.
  • the actuator 50 is placed in the blade heads 51 of the intermediate outlet 30.
  • This actuator 50 comprises a shutter at least partially made of wax 52 which, in its expanded or unexpanded position, causes or not the closure of the intermediate outlet by a plug 53, and thus the flow of heat transfer fluid in the whole beam or in only half of the beam.
  • the coolant circulates between the inlet and the intermediate outlet 30 so that the coolant circulates in only one half of the bundle 32.
  • the coolant circulates between the inlet and the outlet, without leaving the outlet intermediate 30, so that the coolant circulates throughout the beam 32.
  • the actuator 54 comprises a shutter in the form of an electrically controlled pivoting element 55.
  • the temperature of the liquid or coolant that passes through the exchanger is the temperature of the liquid or coolant that passes through the exchanger.
  • An additional mode of use of the exchanger can be defined, namely a staged cooling of the intake air:
  • the first part of the beam is fed by the coolant of the engine (high temperature loop for example to 90 ⁇ )
  • Second stage of cooling The second part of the beam is fed by the liquid of cooling of the low temperature loop (low temperature loop for example at 35 ⁇ )
  • the beams comprise plates.
  • the heat exchange bundle 60 comprises tubes 61 between which the coolant circulates.
  • An air inlet 70 and an air outlet 71 are provided.
  • the heat exchanger may comprise an actuator that makes it possible to switch from one operating mode to another.
  • This actuator can be offset in the liquid tubes or directly integrated in the exchanger beam.
  • a wall is added to the bundle, which wall is substantially in the form of a half-shell, the actuator being placed in this wall.
  • FIG. 15 illustrates the mode in which the coolant flows from the inlet to the intermediate outlet.
  • Figure 16 illustrates the mode in which the heat transfer fluid flows from the inlet to the outlet.
  • FIG. 17 illustrates the mode in which the coolant flows from the inlet to the intermediate outlet.
  • Figure 18 illustrates the mode in which the heat transfer fluid flows from the inlet to the outlet.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Exhaust-Gas Circulating Devices (AREA)

Abstract

The present invention concerns a heat exchanger for an air intake thermal management device for a combustion engine, said device being in particular equipped with a turbocharger, the heat exchanger being arranged to be placed in an air intake circuit between the turbocharger and the engine, the heat exchanger comprising; - a heat exchange bundle (32), in particular comprising plates or tubes, comprising circulation channels for a heat transfer fluid, - an inlet (7a) and an outlet (7b) for a heat transfer fluid, in particular water, connected to said channels of the bundle, - an intermediate outlet (30) arranged to allow a heat transfer fluid to circulate in just one part of the channels of the bundle, between the inlet and this intermediate outlet.

Description

Echangeur de chaleur, notamment échangeur d'air de suralimentation pour véhicule automobile  Heat exchanger, in particular a charge air exchanger for a motor vehicle
La présente invention a pour objet un échangeur de chaleur, notamment un échangeur d'air de suralimentation pour véhicule automobile. The present invention relates to a heat exchanger, in particular a charge air exchanger for a motor vehicle.
L'invention concerne notamment la gestion thermique de l'air d'admission d'un moteur à explosion d'un véhicule automobile et plus particulièrement d'un moteur à explosion turbocompressé et disposant d'un échangeur de chaleur au sein du circuit d'admission d'air.  The invention relates in particular to the thermal management of the intake air of an internal combustion engine of a motor vehicle and more particularly of a turbocharged combustion engine and having a heat exchanger within the engine circuit. air intake.
Dans des conditions climatiques froides, un moteur à explosion notamment diesel, a des difficultés de démarrage et de montée en température par rapport à un moteur essence. En effet, un temps de chauffe est nécessaire avant que les gaz d'échappement aient une température suffisante pour que les dispositifs de traitement des gaz d'échappement comme le catalyseur puissent être complètement efficace. In cold climatic conditions, an engine including diesel diesel, has difficulties in starting and temperature rise compared to a gasoline engine. Indeed, a heating time is necessary before the exhaust gases have a sufficient temperature so that the exhaust gas treatment devices such as the catalyst can be completely effective.
Une solution connue dans le cas d'un véhicule équipé d'un turbocompresseur et d'un échangeur de chaleur placé dans le circuit d'admission d'air afin de refroidir l'air d'admission, est de contourner ledit échangeur de chaleur via un circuit de contournement afin que les gaz d'échappement montent en température plus rapidement. De plus, si le véhicule est également équipé d'un système de recirculation des gaz d'échappement, il est également connu d'utiliser un circuit de contournement pour contourner un échangeur de chaleur placé dans ledit système de recirculation des gaz d'échappement et amener les gaz d'échappement chaud dans le circuit d'admission d'air.  A known solution in the case of a vehicle equipped with a turbocharger and a heat exchanger placed in the air intake circuit for cooling the intake air, is to bypass said heat exchanger via a bypass circuit so that the exhaust gases rise in temperature more quickly. In addition, if the vehicle is also equipped with an exhaust gas recirculation system, it is also known to use a bypass circuit to bypass a heat exchanger placed in said exhaust gas recirculation system and bring the hot exhaust gas into the air intake circuit.
Une autre solution connue, est de réchauffer directement l'air d'admission d'air dans le circuit de contournement de l'échangeur de chaleur du circuit d'admission d'air, au moyen d'un réchauffeur électrique comme décrit dans la demande DE 10 2007 029 036 A1 , ou encore au moyen d'un second échangeur de chaleur toujours placé dans le circuit de contournement de l'échangeur de chaleur du circuit d'admission d'air et relié à un échangeur de chaleur placé dans un système de recirculation des gaz d'échappement, comme décrit dans la demande DE 10 2007 005 246 A1 . Another known solution is to directly heat the air intake air in the bypass circuit of the heat exchanger of the air intake circuit, by means of an electric heater as described in the application DE 10 2007 029 036 A1, or by means of a second heat exchanger always placed in the bypass circuit of the heat exchanger. heat of the air intake circuit and connected to a heat exchanger placed in an exhaust gas recirculation system, as described in the application DE 10 2007 005 246 A1.
On connaît également par la demande de brevet W0 2014 096132 un dispositif de gestion thermique.  Patent application WO 2014 096132 also discloses a thermal management device.
La présente invention vise notamment à améliorer les dispositifs décrits ci-dessus.  The present invention aims in particular to improve the devices described above.
L'invention a ainsi pour objet un échangeur de chaleur pour dispositif de gestion thermique de l'air d'admission d'un moteur à explosion, ce dispositif étant notamment équipé d'un turbocompresseur, l'échangeur étant agencé pour être placé dans un circuit d'admission d'air entre le turbocompresseur et le moteur, l'échangeur comportant : The subject of the invention is thus a heat exchanger for a device for the thermal management of the intake air of an internal combustion engine, this device being in particular equipped with a turbocharger, the exchanger being arranged to be placed in a air intake circuit between the turbocharger and the engine, the exchanger comprising:
- un faisceau d'échange de chaleur, notamment comportant des plaques ou des tubes, comprenant des canaux de circulation d'un fluide caloporteur,  a heat exchange bundle, in particular comprising plates or tubes, comprising channels for circulating a heat transfer fluid,
- une entrée et une sortie de fluide caloporteur, notamment de l'eau, connectées à ces canaux du faisceau,  an inlet and a heat transfer fluid outlet, in particular water, connected to these channels of the bundle,
- une sortie intermédiaire agencée pour permettre au fluide caloporteur de circuler dans une partie seulement des canaux du faisceau, entre l'entrée et cette sortie intermédiaire.  an intermediate outlet arranged to allow the coolant to circulate in only part of the channels of the bundle, between the inlet and this intermediate outlet.
Selon un aspect de l'invention, la sortie intermédiaire est placée en face de l'entrée notamment de manière à former une configuration de circulation du fluide caloporteur en I. En variante, la sortie intermédiaire est placée entre l'entrée et la sortie notamment de manière à former une configuration de circulation du fluide caloporteur en U. According to one aspect of the invention, the intermediate outlet is placed opposite the inlet in particular so as to form a circulating configuration of the heat transfer fluid I. As a variant, the intermediate outlet is placed between the inlet and the outlet in particular so as to form a circulation configuration of the heat transfer fluid in U.
L'échangeur peut ainsi présenter ainsi deux modes de fonctionnement. Dans un mode de refroidissement de l'air d'admission, l'arrivée du fluide caloporteur s'effectue par l'entrée et l'évacuation par la sortie. Tout le faisceau est utilisé. Dans ce mode de refroidissement si on le souhaite, en variante, une partie seulement du faisceau est utilisé.  The exchanger can thus have two modes of operation. In a cooling mode of the intake air, the arrival of the heat transfer fluid is effected by the entry and the evacuation through the outlet. All the beam is used. In this cooling mode if desired, alternatively, only a portion of the beam is used.
Dans un mode de chauffage de l'air d'admission, l'arrivée du fluide caloporteur s'effectue par l'entrée et l'évacuation par la sortie intermédiaire. Seule une partie, notamment la moitié, du faisceau est alors utilisée. L'énergie apportée par l'eau se concentre ainsi sur la deuxième moitié du faisceau. Il est ainsi possible d'affiner la stratégie de gestion thermique en fonction du besoin moteur.  In a heating mode of the intake air, the arrival of the coolant is effected by the entry and the evacuation via the intermediate outlet. Only part, especially half, of the beam is then used. The energy provided by the water is thus concentrated on the second half of the beam. It is thus possible to refine the thermal management strategy according to the engine need.
Ainsi, en ne faisant circuler le fluide seulement dans une partie du faisceau, il est possible avantageusement de réduire la masse, notamment d'aluminium de l'échangeur, à chauffer.  Thus, by circulating the fluid only in a part of the beam, it is advantageously possible to reduce the mass, especially of aluminum exchanger, to heat.
Notamment la division du faisceau permet de réduire les pertes de charge côté fluide caloporteur.  In particular, the division of the beam makes it possible to reduce the pressure drop on the coolant side.
Selon un aspect de l'invention, l'un au moins des canaux du faisceau est formé entre deux plaques.  According to one aspect of the invention, at least one of the channels of the beam is formed between two plates.
Selon un aspect de l'invention, l'échangeur comporte des canaux disposés en étages et, pour l'un au moins de ces étages, notamment pour tous les étages, l'échangeur comporte un seul canal.  According to one aspect of the invention, the exchanger comprises channels arranged in stages and, for at least one of these stages, in particular for all stages, the exchanger comprises a single channel.
En variante, l'échangeur comporte des canaux disposés en étages et, pour l'un au moins de ces étages, notamment pour tous les étages, l'échangeur comporte au moins deux canaux séparés ayant chacun sa propre entrée et sa propre sortie. Selon un aspect de l'invention, les canaux d'un même étage sont formés entre deux paires de plaques distinctes. In a variant, the exchanger comprises channels arranged in stages and, for at least one of these stages, in particular for all stages, the exchanger comprises at least two separate channels each having its own inlet and its own outlet. According to one aspect of the invention, the channels of the same stage are formed between two pairs of distinct plates.
Selon un aspect de l'invention, l'espace entre les deux paires de plaques forme une isolation thermique entre les deux canaux voisins.  According to one aspect of the invention, the space between the two pairs of plates forms a thermal insulation between the two neighboring channels.
Selon un aspect de l'invention, le nombre de canaux par étage peut être de deux, trois ou plus, de sorte que le faisceau d'échange thermique soit partagé en deux, trois ou plus. Ces deux ou trois parties du faisceau peuvent être utilisées de manière sélective en fonction des besoins du moteur à combustion.  According to one aspect of the invention, the number of channels per stage can be two, three or more, so that the heat exchange bundle is split into two, three or more. These two or three parts of the beam can be used selectively depending on the needs of the combustion engine.
Ceci est particulièrement avantageux car, en mode de refroidissement, l'échangeur est dimensionné pour la pleine charge du moteur à combustion. Or, il ne s'agit pas d'un point de fonctionnement très récurrent, l'échangeur est donc surdimensionné la plupart du temps. Partager le faisceau, par exemple en utilisant seulement un tiers ou deux tiers coté liquide caloporteur, permet de n'utiliser qu'une partie suffisante pour le chauffage de l'air d'admission et ainsi réduire la perte de charge côté liquide. Bien entendu, l'invention peut s'appliquer également au mode refroidissement.  This is particularly advantageous because, in cooling mode, the exchanger is sized for the full load of the combustion engine. However, it is not a very recurring operating point, the exchanger is therefore oversized most of the time. Sharing the beam, for example by using only one third or two thirds heat transfer liquid side, allows to use only a sufficient portion for the heating of the intake air and thus reduce the pressure drop on the liquid side. Of course, the invention can also be applied to the cooling mode.
Selon un aspect de l'invention, la partie du faisceau utilisée pour le chauffage de l'air d'admission se trouve du côté de la sortie de l'air pour réduire les pertes thermiques dans la partie du faisceau côté entrée de l'air d'admission.  According to one aspect of the invention, the part of the beam used for the heating of the intake air is on the air outlet side to reduce heat losses in the part of the air inlet side beam. intake.
Selon un aspect de l'invention, l'échangeur comporte un actionneur agencé pour contrôler le passage du fluide caloporteur sélectivement dans tout ou partie du faisceau.  According to one aspect of the invention, the exchanger comprises an actuator arranged to control the passage of the heat transfer fluid selectively in all or part of the beam.
Selon un aspect de l'invention, cet actionneur peut être déporté dans les tubulures du liquide hors de l'échangeur.  According to one aspect of the invention, this actuator can be deported in the tubing of the liquid out of the exchanger.
Selon un aspect de l'invention, l'actionneur comporte un obturateur mobile, par exemple mobile en translation, qui selon sa position provoque ou non l'obturation de la sortie intermédiaire et ainsi l'écoulement du fluide caloporteur dans tout le faisceau ou dans une moitié seulement du faisceau. According to one aspect of the invention, the actuator comprises a movable shutter, for example mobile in translation, which according to its position causes or not the closure of the intermediate outlet and thus the flow of heat transfer fluid throughout the beam or in only half of the beam.
Cet actionneur peut être directement intégré dans le faisceau de l'échangeur. Lorsque l'actionneur est intégré au faisceau, il est placé dans les têtes de lames de la sortie intermédiaire.  This actuator can be directly integrated into the exchanger beam. When the actuator is integrated into the beam, it is placed in the blade heads of the intermediate outlet.
Selon un aspect de l'invention, l'actionneur comporte un obturateur partiellement en cire par exemple, qui, selon sa position dilatée ou non dilatée, provoque ou non l'obturation de la sortie intermédiaire par un bouchon, et ainsi l'écoulement du fluide caloporteur dans tout le faisceau ou dans une moitié seulement du faisceau.  According to one aspect of the invention, the actuator comprises a shutter partially made of wax for example, which, in its dilated or unexpanded position, causes or not the closure of the intermediate outlet by a plug, and thus the flow of the heat transfer fluid throughout the beam or in only half of the beam.
L'actionneur peut comporter un élément thermostatique, de manière à former par exemple une vanne thermostatique, ou un élément piloté électriquement qui se déplacent linéairement ou en mouvement de translation.  The actuator may comprise a thermostatic element, so as to form for example a thermostatic valve, or an electrically controlled element that moves linearly or in translation movement.
Un élément piloté électriquement présente l'avantage d'avoir un temps de réponse plus rapide.  An electrically controlled element has the advantage of having a faster response time.
L'élément électrique peut également se présenter sous la forme d'un élément pivotant.  The electrical element may also be in the form of a pivoting element.
Le contrôle de ces éléments peut se faire par un suivi de : The control of these elements can be done by a follow-up of:
- La température de l'air qui traverse l'échangeur.  - The temperature of the air passing through the exchanger.
La température du liquide ou fluide caloporteur qui traverse l'échangeur.  The temperature of the liquid or coolant that passes through the exchanger.
Les températures de l'air et du liquide qui traversent l'échangeur.  The temperatures of the air and the liquid that pass through the exchanger.
Un mode d'utilisation supplémentaire de l'échangeur peut être défini, à savoir un refroidissement étagé de l'air d'admission : Première étape de refroidissement : La première partie du faisceau est alimentée par le liquide de refroidissement du moteur (boucle Haute Température par exemple à 90X) An additional mode of use of the exchanger can be defined, namely a staged cooling of the intake air: First stage of cooling: The first part of the beam is fed by the coolant of the engine (high temperature loop for example at 90X)
Deuxième étape de refroidissement : La deuxième partie du faisceau est alimentée par le liquide de refroidissement de la boucle basse température (boucle Basse Température par exemple à 35Ό) Second stage of cooling: The second part of the beam is fed by the coolant of the low temperature loop (low temperature loop for example at 35Ό)
Le faisceau d'échange thermique comporte des tubes dans lesquels circule le fluide caloporteur. Ceci peut être utilisé à la place des plaques. The heat exchange bundle comprises tubes in which the coolant circulates. This can be used instead of the plates.
Dans le cas d'utilisation d'un faisceau avec des tubes, l'échangeur peut comporte un actionneur qui permet de basculer d'un mode de fonctionnement à l'autre. Cet actionneur peut être déporté dans les tubulures du liquide ou directement intégré dans le faisceau de l'échangeur.  In the case of using a bundle with tubes, the heat exchanger may comprise an actuator that makes it possible to switch from one operating mode to another. This actuator can be offset in the liquid tubes or directly integrated in the exchanger beam.
En variante, une paroi est ajoutée au faisceau, paroi qui est sensiblement en forme de demi-coquille, l'actionneur étant placé dans cette paroi.  In a variant, a wall is added to the bundle, which wall is substantially in the form of a half-shell, the actuator being placed in this wall.
Lorsque les tubulures du liquide ne sont pas adjacentes, deux actionneurs sont nécessaires et les deux actionneurs doivent être synchronisés.  When the liquid manifolds are not adjacent, two actuators are required and both actuators must be synchronized.
Lorsque les tubulures du liquide sont adjacentes, un seul actionneur est nécessaire.  When the liquid manifolds are adjacent, only one actuator is needed.
D'autres caractéristiques et avantages de l'invention apparaîtront plus clairement à la lecture de la description suivante, donnée à titre d'exemple illustratif et non limitatif, parmi lesquelles : Other features and advantages of the invention will appear more clearly on reading the following description, given by way of illustrative and non-limiting example, among which:
- la figure 1 A montre une représentation schématique d'un moteur à explosion et de son dispositif de gestion thermique de l'air admission, FIG. 1A shows a schematic representation of an internal combustion engine and its device for thermal management of the intake air,
- les figures 1 à 4 illustrent différents exemples de partition du faisceau selon l'invention, - les figures 5 à 7 illustrent un mode de réalisation de l'invention,FIGS. 1 to 4 illustrate various examples of partitioning the beam according to the invention, FIGS. 5 to 7 illustrate an embodiment of the invention,
- les figures 8 à 10 illustrent un autre mode de réalisation de l'invention utilisant des plaques, FIGS. 8 to 10 illustrate another embodiment of the invention using plates,
- les figures 1 1 à 13 illustrent encore un autre mode de réalisation de l'invention,  FIGS. 11 to 13 illustrate yet another embodiment of the invention,
- les figures 14 à 18 illustrent d'autres modes de réalisation de l'invention utilisant des tubes.  FIGS. 14 to 18 illustrate other embodiments of the invention using tubes.
La figure 1 A montre une représentation schématique d'un moteur 3 à explosion équipé d'un turbocompresseur 5 et de son dispositif de gestion thermique 1 de l'air admission. FIG. 1A shows a schematic representation of a combustion engine 3 equipped with a turbocharger 5 and its thermal management device 1 of the intake air.
Le moteur 3, notamment diesel, comporte un circuit d'admission d'air 9 qui apporte l'air pour la combustion à l'intérieur des cylindres, ainsi qu'une ligne d'échappement principale 12 pour l'évacuation des gaz d'échappement. Le moteur 3 comporte également un turbocompresseur 5 comprenant une turbine 5b placée dans la ligne d'échappement principale 12 et un compresseur 5a placé dans le circuit d'admission d'air 9.  The engine 3, in particular a diesel engine, comprises an air intake circuit 9 which supplies the air for combustion inside the cylinders, as well as a main exhaust line 12 for the evacuation of gases from the engine. exhaust. The engine 3 also comprises a turbocharger 5 comprising a turbine 5b placed in the main exhaust line 12 and a compressor 5a placed in the air intake circuit 9.
La ligne d'échappement principale 12 peut également comporter, en aval de la turbine 5b, des dispositifs de traitement des gaz d'échappement 16, par exemple un catalyseur et/ou un filtre à particules.  The main exhaust line 12 may also include, downstream of the turbine 5b, exhaust gas treatment devices 16, for example a catalyst and / or a particulate filter.
Le dispositif de gestion thermique 1 comprend, placé dans le circuit d'admission d'air 9 entre le compresseur 5a et le moteur 3, un premier échangeur de chaleur 7 comportant une entrée 7a et une sortie 7b de fluide caloporteur. The thermal management device 1 comprises, placed in the air intake circuit 9 between the compressor 5a and the engine 3, a first heat exchanger 7 having an inlet 7a and an outlet 7b of heat transfer fluid.
Le dispositif de gestion thermique 1 comprend également un second échangeur de chaleur 10 placé sur la ligne d'échappement principale 12 du moteur 3 et captant l'énergie calorifique des gaz d'échappement, transférant ladite énergie à un fluide caloporteur, notamment de l'eau, circulant dans une boucle de chauffage A depuis une sortie 10b de fluide caloporteur vers l'entrée 7a de fluide caloporteur du premier échangeur de chaleur 7 avec laquelle elle est reliée. The thermal management device 1 also comprises a second heat exchanger 10 placed on the main exhaust line 12 of the engine 3 and capturing the heat energy of the exhaust gases, transferring said energy to a heat transfer fluid, in particular the water circulating in a heating loop A from an outlet 10b of coolant to the heat transfer fluid inlet 7a of the first heat exchanger 7 with which it is connected.
La boucle de chauffage A est formée ensuite par la liaison directe ou indirecte de la sortie 7b de fluide caloporteur du premier échangeur 7 et l'entrée 10a de fluide caloporteur du second échangeur de chaleur 10.  The heating loop A is then formed by the direct or indirect connection of the heat transfer fluid outlet 7b of the first heat exchanger 7 and the heat transfer fluid inlet 10a of the second heat exchanger 10.
Ce placement du second échangeur de chaleur 10 directement sur la ligne d'échappement principale 12 permet de maximiser l'énergie calorifique disponible et récupérable pour réchauffer l'air d'admission au niveau du premier échangeur de chaleur 7.  This placement of the second heat exchanger 10 directly on the main exhaust line 12 maximizes the heat energy available and recoverable to heat the intake air at the first heat exchanger 7.
L'échangeur 10 peut être remplacé par toute autre source de chaleur pour le réfrigérant circulant dans un WCAC. Cette source de chaleur est par exemple une partie haute température du moteur thermique.  The exchanger 10 may be replaced by any other heat source for the refrigerant circulating in a WCAC. This heat source is for example a high temperature part of the heat engine.
Le dispositif de gestion thermique 1 comprend en outre une pompe 24 de circulation du fluide caloporteur dans la circulation du fluide caloporteur à l'intérieur de la boucle de chauffage A.  The thermal management device 1 further comprises a pump 24 for circulating the coolant in the circulation of the heat transfer fluid inside the heating loop A.
Le dispositif de gestion thermique 1 peut également comporter un système de récupération des gaz d'échappement. La ligne d'échappement principale 12 comporte ainsi une dérivation des gaz d'échappement placée en aval de la turbine 5b et des dispositifs de traitement des gaz d'échappement 16 et débouchant dans le circuit d'admission d'air 9 en amont du compresseur 5a. L'ouverture et la fermeture du système de récupération des gaz d'échappement 14 sont commandées par une vanne 140 qui permet de réguler le débit de gaz d'échappement entrant dans le système de récupération des gaz d'échappement 14.  The thermal management device 1 may also include an exhaust gas recovery system. The main exhaust line 12 thus comprises a bypass of the exhaust gas placed downstream of the turbine 5b and the exhaust gas treatment devices 16 and opening into the air intake circuit 9 upstream of the compressor 5a. The opening and closing of the exhaust gas recovery system 14 are controlled by a valve 140 which regulates the flow of exhaust gas entering the exhaust gas recovery system 14.
Dans ce cas de figure, le second échangeur de chaleur 10 est placé entre la turbine 5b et la dérivation 141 du système de récupération des gaz d'échappement 14, de préférence en aval des dispositifs de traitement des gaz d'échappement 16. Cela permet de garantir l'efficacité et la montée en température des dispositifs de traitement des gaz d'échappement car les gaz d'échappement qui les traversent n'ont pas subit de prélèvement d'énergie calorifique par le second échangeur de chaleur. In this case, the second heat exchanger 10 is placed between the turbine 5b and the bypass 141 of the exhaust gas recovery system 14, preferably downstream of the gas treatment devices. 16. This ensures the efficiency and temperature rise of the exhaust gas treatment devices because the exhaust gas through them have not been subjected to heat removal by the second heat exchanger heat.
Ce placement du second échangeur de chaleur 10 entre la turbine 5b et la dérivation 141 du système de récupération des gaz d'échappement 14 permet au second échangeur de chaleur 10 de jouer également le rôle d'échangeur de chaleur pour le système de récupération des gaz d'échappement 14 et ainsi de refroidir si besoin les gaz d'échappement destinés à retourner vers le circuit d'admission d'air 9. De plus, le placement du second échangeur directement sur la ligne principale d'échappement 12 permet, dans ce cas de figure, de récupérer de l'énergie calorifique des gaz d'échappement et ce même si le système de récupération des gaz d'échappement 14 est fermé.  This placement of the second heat exchanger 10 between the turbine 5b and the bypass 141 of the exhaust gas recovery system 14 allows the second heat exchanger 10 to also act as a heat exchanger for the gas recovery system. exhaust system 14 and thus cool if necessary the exhaust gas intended to return to the air intake circuit 9. In addition, the placement of the second exchanger directly on the main exhaust line 12 allows, in this case. In this case, it is possible to recover heat energy from the exhaust gas even if the exhaust gas recovery system 14 is closed.
Dans le cas où il n'est pas nécessaire de chauffer l'air d'admission ou de refroidir les gaz d'échappement, il est possible de contourner le second échangeur 10 via un circuit de contournement 18 placé sur la ligne d'échappement principale 12 et dont l'ouverture et la fermeture sont commandées par une vanne 180. In the case where it is not necessary to heat the intake air or to cool the exhaust gas, it is possible to bypass the second exchanger 10 via a bypass circuit 18 placed on the main exhaust line. 12 and whose opening and closing are controlled by a valve 180.
Le premier échangeur de chaleur 7 peut également jouer le rôle connu de refroidisseur de l'air d'admission si ce dernier est trop chaud pour la combustion dans les cylindres du moteur 3 et ainsi augmenter par refroidissement la quantité d'air d'admission arrivant aux cylindres. Pour cela, le premier échangeur de chaleur 7 est également relié à une boucle de refroidissement. The first heat exchanger 7 can also play the known role of intake air cooler if the latter is too hot for combustion in the cylinders of the engine 3 and thus increase by cooling the intake air intake amount to the cylinders. For this, the first heat exchanger 7 is also connected to a cooling loop.
Cette boucle de refroidissement relie la sortie 7b de fluide caloporteur du premier échangeur de chaleur 7 à l'entrée de fluide caloporteur d'un radiateur basse température et relie la sortie de fluide caloporteur dudit radiateur basse température à l'entrée 7a de fluide caloporteur du premier échangeur de chaleur 7. This cooling loop connects the heat transfer fluid outlet 7b of the first heat exchanger 7 to the heat transfer fluid inlet of a radiator low temperature and connects the heat transfer fluid outlet of said low temperature radiator to the heat transfer fluid inlet 7a of the first heat exchanger 7.
L'échangeur de chaleur 7 comporte :  The heat exchanger 7 comprises:
- un faisceau d'échange de chaleur 32 comprenant des canaux 31 de circulation d'un fluide caloporteur,  a heat exchange bundle 32 comprising channels 31 for circulating a heat transfer fluid,
- une sortie intermédiaire 30 agencée pour permettre au fluide caloporteur de circuler dans une partie seulement des canaux 31 du faisceau, entre l'entrée 7a et cette sortie intermédiaire 30.  an intermediate outlet 30 arranged to allow the coolant to circulate in only part of the channels 31 of the bundle, between the inlet 7a and this intermediate outlet 30.
La sortie intermédiaire 30 est placée en face de l'entrée 7a notamment de manière à former une configuration de circulation du fluide caloporteur en I, comme illustré sur la figure 1 . The intermediate outlet 30 is placed in front of the inlet 7a in particular so as to form a circulating configuration of the heat transfer fluid at I, as illustrated in FIG.
En variante, la sortie intermédiaire 30 est placée entre l'entrée 7a et la sortie 7b de manière à former une configuration de circulation du fluide caloporteur en U, comme visible sur la figure 2.  As a variant, the intermediate outlet 30 is placed between the inlet 7a and the outlet 7b so as to form a circulating configuration of the heat transfer fluid in a U-shape, as can be seen in FIG.
L'échangeur 7 peut ainsi présenter ainsi deux modes de fonctionnement. The exchanger 7 can thus have two modes of operation.
Dans un mode de refroidissement de l'air d'admission, l'arrivée du fluide caloporteur s'effectue par l'entrée et l'évacuation par la sortie 7b. Tout le faisceau est utilisé. In a cooling mode of the intake air, the arrival of the heat transfer fluid is effected by the entry and the evacuation through the outlet 7b. All the beam is used.
Dans un mode de chauffage de l'air d'admission, l'arrivée du fluide caloporteur s'effectue par l'entrée 7a et l'évacuation par la sortie intermédiaire 30. Seule la moitié du faisceau est alors utilisée.  In a heating mode of the intake air, the arrival of the coolant is effected by the inlet 7a and the evacuation via the intermediate outlet 30. Only half of the beam is then used.
Ainsi, en ne faisant circuler le fluide seulement dans une partie du faisceau, il est possible avantageusement de réduire la masse, notamment d'aluminium de l'échangeur, à chauffer.  Thus, by circulating the fluid only in a part of the beam, it is advantageously possible to reduce the mass, especially of aluminum exchanger, to heat.
L'échangeur comporte des canaux 31 disposés en étages et, pour chacun de ces étages, l'échangeur comporte un seul canal, comme c'est le cas pour les exemples des figures 1 et 2. En variante, l'échangeur comporte des canaux disposés en étages et, pour chacun de ces étages, l'échangeur comporte deux canaux séparés ayant chacun sa propre entrée 7a et sa propre sortie 7b, comme illustré sur la figure 3. The exchanger comprises channels 31 arranged in stages and, for each of these stages, the exchanger comprises a single channel, as is the case for the examples of Figures 1 and 2. In a variant, the exchanger comprises channels arranged in stages and, for each of these stages, the exchanger comprises two separate channels each having its own inlet 7a and its own outlet 7b, as illustrated in FIG.
Les canaux 31 du faisceau sont formés entre deux plaques 39, comme on peut le voir sur la figure 5.  The channels 31 of the bundle are formed between two plates 39, as can be seen in FIG.
Plus précisément, les canaux d'un même étage sont formés entre deux paires de plaques distinctes 35 et 36, comme par exemple illustré sur la figure 5.  More precisely, the channels of the same stage are formed between two pairs of distinct plates 35 and 36, as for example illustrated in FIG.
L'espace entre les deux paires de plaques forme une isolation thermique The space between the two pairs of plates forms a thermal insulation
37 entre les deux canaux voisins. 37 between the two neighboring channels.
En mode de refroidissement, l'échangeur est dimensionné pour la pleine charge du moteur à combustion. Or, il ne s'agit pas d'un point de fonctionnement très récurrent, l'échangeur est donc surdimensionné la plupart du temps. Partager le faisceau, par exemple en utilisant seulement un tiers ou deux tiers coté liquide caloporteur, permet de n'utiliser qu'une partie suffisante pour le chauffage de l'air d'admission et ainsi réduire la perte de charge côté liquide.  In cooling mode, the exchanger is sized for the full load of the combustion engine. However, it is not a very recurring operating point, the exchanger is therefore oversized most of the time. Sharing the beam, for example by using only one third or two thirds heat transfer liquid side, allows to use only a sufficient portion for the heating of the intake air and thus reduce the pressure drop on the liquid side.
La partie 32a du faisceau utilisée pour le chauffage de l'air d'admission se trouve du côté de la sortie de l'air pour réduire les pertes thermiques dans la partie du faisceau côté entrée de l'air d'admission, comme illustré sur la figure 4.  The portion 32a of the harness used for heating the intake air is on the air outlet side to reduce the heat losses in the inlet side portion of the intake air, as shown in FIG. Figure 4.
L'échangeur 7 comporte un actionneur 40 agencé pour contrôler le passage du fluide caloporteur sélectivement dans tout ou partie du faisceau, comme mieux visible sur la figure 6.  The exchanger 7 comprises an actuator 40 arranged to control the passage of the coolant selectively in all or part of the beam, as best seen in Figure 6.
Cet actionneur 40 peut être déporté dans les tubulures du liquide hors de l'échangeur, comme illustré sur les figures 5 et 6.  This actuator 40 can be deported in the tubings of the liquid out of the exchanger, as illustrated in FIGS. 5 and 6.
L'actionneur 40 comporte un obturateur mobile 41 , par exemple mobile en translation, qui selon sa position provoque ou non l'obturation de la sortie intermédiaire et ainsi l'écoulement du fluide caloporteur dans tout le faisceau ou dans une moitié seulement du faisceau. The actuator 40 comprises a movable shutter 41, for example movable in translation, which according to its position causes or not the closing of the outlet intermediate and thus the flow of heat transfer fluid throughout the beam or in only half of the beam.
L'échangeur 7 comporte un capot 42 fermant le faisceau 32, capot qui porte les tubulures d'entrée et de sorite et l'actionneur.  The exchanger 7 comprises a cover 42 closing the beam 32, cover which carries the inlet and outlet pipes and the actuator.
Dans ce cas, en mode de chauffage illustré sur la figure 6 (vue en coupe suivant le plan P de la figure 5), le fluide caloporteur circule entre l'entrée 7a et la sortie intermédiaire 30 (voir les flèches indiquant ce sens de circulation) de sorte que le fluide caloporteur circule dans une moitié seulement du faisceau 32. In this case, in the heating mode illustrated in FIG. 6 (sectional view along the plane P of FIG. 5), the coolant circulates between the inlet 7a and the intermediate outlet 30 (see the arrows indicating this direction of circulation). ) so that the heat transfer fluid circulates in only half of the beam 32.
En mode de refroidissement illustré sur la figure 7, le fluide caloporteur circule entre l'entrée 7a et la sortie 7b(voir les flèches indiquant ce sens de circulation), sans sortir par la sortie intermédiaire, de sorte que le fluide caloporteur circule dans tout le faisceau.  In the cooling mode illustrated in FIG. 7, the heat transfer fluid circulates between the inlet 7a and the outlet 7b (see the arrows indicating this direction of circulation), without leaving the intermediate outlet, so that the coolant circulates in all the beam.
On a représenté sur les figures 8 à 10 un autre exemple de réalisation de l'invention, avec un actionneur 50 directement intégré dans le faisceau 32 de l'échangeur. FIGS. 8 to 10 show another embodiment of the invention, with an actuator 50 directly integrated in the beam 32 of the exchanger.
L'actionneur 50 est placé dans les têtes de lames 51 de la sortie intermédiaire 30.  The actuator 50 is placed in the blade heads 51 of the intermediate outlet 30.
Cet actionneur 50 comporte un obturateur au moins partiellement en cire 52 qui, selon sa position dilatée ou non dilatée, provoque ou non l'obturation de la sortie intermédiaire par un bouchon 53, et ainsi l'écoulement du fluide caloporteur dans tout le faisceau ou dans une moitié seulement du faisceau.  This actuator 50 comprises a shutter at least partially made of wax 52 which, in its expanded or unexpanded position, causes or not the closure of the intermediate outlet by a plug 53, and thus the flow of heat transfer fluid in the whole beam or in only half of the beam.
Dans ce cas, en mode de chauffage illustré sur la figure 10, le fluide caloporteur circule entre l'entrée et la sortie intermédiaire 30 de sorte que le fluide caloporteur circule dans une moitié seulement du faisceau 32.  In this case, in the heating mode illustrated in FIG. 10, the coolant circulates between the inlet and the intermediate outlet 30 so that the coolant circulates in only one half of the bundle 32.
Dans ce cas, en mode de refroidissement illustré sur la figure 9, le fluide caloporteur circule entre l'entrée et la sortie, sans sortir par la sortie intermédiaire 30, de sorte que le fluide caloporteur circule dans tout le faisceau 32. In this case, in the cooling mode illustrated in FIG. 9, the coolant circulates between the inlet and the outlet, without leaving the outlet intermediate 30, so that the coolant circulates throughout the beam 32.
Dans un autre exemple de réalisation de l'invention, comme illustré sur les figures 1 1 à 13, l'actionneur 54 comporte un obturateur sous la forme d'un élément pivotant 55 piloté électriquement. In another embodiment of the invention, as illustrated in FIGS. 1 1 to 13, the actuator 54 comprises a shutter in the form of an electrically controlled pivoting element 55.
Dans ce cas, en mode de chauffage illustré sur la figure 12, du fait d'une rotation prédéterminée de l'élément pivotant 55, le fluide caloporteur circule entre l'entrée et la sortie intermédiaire 30 de sorte que le fluide caloporteur circule dans une moitié seulement du faisceau.  In this case, in the heating mode illustrated in FIG. 12, because of a predetermined rotation of the pivoting element 55, the coolant circulates between the inlet and the intermediate outlet 30 so that the coolant circulates in a only half of the beam.
Dans ce cas, en mode de refroidissement illustré sur la figure 13, du fait d'une rotation prédéterminée de l'élément pivotant 55, le fluide caloporteur circule entre l'entrée et la sortie, sans sortir par la sortie intermédiaire 30, de sorte que le fluide caloporteur circule dans tout le faisceau.  In this case, in the cooling mode illustrated in FIG. 13, because of a predetermined rotation of the pivoting element 55, the coolant circulates between the inlet and the outlet, without leaving the intermediate outlet 30, so that that the coolant circulates throughout the beam.
Le contrôle de ces éléments peut se faire par un suivi de :  The control of these elements can be done by a follow-up of:
La température de l'air qui traverse l'échangeur.  The temperature of the air passing through the exchanger.
La température du liquide ou fluide caloporteur qui traverse l'échangeur.  The temperature of the liquid or coolant that passes through the exchanger.
Les températures de l'air et du liquide qui traversent l'échangeur.  The temperatures of the air and the liquid that pass through the exchanger.
Un mode d'utilisation supplémentaire de l'échangeur peut être défini, à savoir un refroidissement étagé de l'air d'admission : An additional mode of use of the exchanger can be defined, namely a staged cooling of the intake air:
Première étape de refroidissement : La première partie du faisceau est alimentée par le liquide de refroidissement du moteur (boucle Haute Température par exemple à 90Ό) First stage of cooling: The first part of the beam is fed by the coolant of the engine (high temperature loop for example to 90Ό)
Deuxième étape de refroidissement : La deuxième partie du faisceau est alimentée par le liquide de refroidissement de la boucle basse température (boucle Basse Température par exemple à 35Ό) Second stage of cooling: The second part of the beam is fed by the liquid of cooling of the low temperature loop (low temperature loop for example at 35Ό)
Dans les exemples décrits ci-dessus, les faisceaux comportent des plaques. In the examples described above, the beams comprise plates.
En variante, comme illustré sur la figure 14, le faisceau d'échange thermique 60 comporte des tubes 61 entre lesquels circule le fluide caloporteur.  As a variant, as illustrated in FIG. 14, the heat exchange bundle 60 comprises tubes 61 between which the coolant circulates.
Une entrée d'air 70 et une sortie d'air 71 sont prévues.  An air inlet 70 and an air outlet 71 are provided.
Dans le cas d'utilisation d'un faisceau avec des tubes, l'échangeur peut comporter un actionneur qui permet de basculer d'un mode de fonctionnement à l'autre. Cet actionneur peut être déporté dans les tubulures du liquide ou directement intégré dans le faisceau de l'échangeur.  In the case of using a bundle with tubes, the heat exchanger may comprise an actuator that makes it possible to switch from one operating mode to another. This actuator can be offset in the liquid tubes or directly integrated in the exchanger beam.
En variante, une paroi est ajoutée au faisceau, paroi qui est sensiblement en forme de demi-coquille, l'actionneur étant placé dans cette paroi.  In a variant, a wall is added to the bundle, which wall is substantially in the form of a half-shell, the actuator being placed in this wall.
Lorsque les tubulures du liquide ne sont pas adjacentes, deux actionneurs sont nécessaires et les deux actionneurs doivent être synchronisés.  When the liquid manifolds are not adjacent, two actuators are required and both actuators must be synchronized.
La figure 15 illustre le mode dans lequel le fluide caloporteur circule de l'entrée vers la sortie intermédiaire.  FIG. 15 illustrates the mode in which the coolant flows from the inlet to the intermediate outlet.
La figure 16 illustre le mode dans lequel le fluide caloporteur circule de l'entrée vers la sortie.  Figure 16 illustrates the mode in which the heat transfer fluid flows from the inlet to the outlet.
Lorsque les tubulures du liquide sont adjacentes, un seul actionneur est nécessaire.  When the liquid manifolds are adjacent, only one actuator is needed.
La figure 17 illustre le mode dans lequel le fluide caloporteur circule de l'entrée vers la sortie intermédiaire.  FIG. 17 illustrates the mode in which the coolant flows from the inlet to the intermediate outlet.
La figure 18 illustre le mode dans lequel le fluide caloporteur circule de l'entrée vers la sortie.  Figure 18 illustrates the mode in which the heat transfer fluid flows from the inlet to the outlet.

Claims

REVENDICATIONS
1 . Echangeur de chaleur (7) pour dispositif de gestion thermique (1 ) de l'air d'admission d'un moteur (3) à explosion, ce dispositif étant notamment équipé d'un turbocompresseur (5), l'échangeur étant agencé pour être placé dans un circuit d'admission d'air entre le turbocompresseur et le moteur, l'échangeur comportant : 1. Heat exchanger (7) for a thermal management device (1) for the intake air of an explosion motor (3), this device being in particular equipped with a turbocharger (5), the exchanger being arranged for be placed in an air intake circuit between the turbocharger and the engine, the exchanger comprising:
- un faisceau d'échange de chaleur (32), notamment comportant des plaques ou des tubes, comprenant des canaux de circulation d'un fluide caloporteur,  a heat exchange bundle (32), in particular comprising plates or tubes, comprising channels for circulating a heat transfer fluid,
- une entrée (7a) et une sortie (7b) de fluide caloporteur, notamment de l'eau, connectées à ces canaux du faisceau, an inlet (7a) and an outlet (7b) of coolant, in particular water, connected to these channels of the bundle,
- une sortie intermédiaire (30) agencée pour permettre au fluide caloporteur de circuler dans une partie seulement des canaux du faisceau, entre l'entrée et cette sortie intermédiaire. - An intermediate outlet (30) arranged to allow the heat transfer fluid to flow in only part of the beam channels, between the inlet and the intermediate outlet.
2. Echangeur selon la revendication précédente, la sortie intermédiaire (30) étant placée en face de l'entrée notamment de manière à former une configuration de circulation du fluide caloporteur en I. 2. Exchanger according to the preceding claim, the intermediate outlet (30) being placed opposite the inlet in particular so as to form a circulating configuration of the heat transfer fluid I.
3. Echangeur selon la revendication 1 , la sortie intermédiaire (30) étant placée entre l'entrée et la sortie notamment de manière à former une configuration de circulation du fluide caloporteur en U. 3. Exchanger according to claim 1, the intermediate outlet (30) being placed between the inlet and the outlet in particular so as to form a circulation configuration of the heat transfer fluid in U.
4. Echangeur selon l'une des revendications précédentes, l'échangeur (7) est agencé pour présenter deux modes de fonctionnement : Dans un mode de refroidissement de l'air d'admission, l'arrivée du fluide caloporteur s'effectue par l'entrée et l'évacuation par la sortie, et ainsi tout le faisceau est utilisé, 4. Exchanger according to one of the preceding claims, the exchanger (7) is arranged to have two modes of operation: In a mode of cooling of the intake air, the arrival of the heat transfer fluid is effected by the entry and the evacuation by the exit, and thus all the beam is used,
- Dans un mode de chauffage de l'air d'admission, l'arrivée du fluide caloporteur s'effectue par l'entrée et l'évacuation par la sortie intermédiaire et ainsi seule une partie du faisceau est alors utilisée.  - In a heating mode of the intake air, the arrival of the heat transfer fluid is effected by the entry and the evacuation via the intermediate outlet and thus only a part of the beam is then used.
5. Echangeur selon l'une des revendications précédentes, l'un au moins des canaux du faisceau est formé entre deux plaques (31 ). 5. Exchanger according to one of the preceding claims, at least one of the channels of the beam is formed between two plates (31).
6. Echangeur selon l'une des revendications précédentes, la partie du faisceau utilisée pour le chauffage de l'air d'admission se trouve du côté de la sortie de l'air pour réduire les pertes thermiques dans la partie du faisceau côté entrée de l'air d'admission. 6. Exchanger according to one of the preceding claims, the portion of the beam used for heating the intake air is on the air outlet side to reduce heat losses in the portion of the input side beam of intake air.
7. Echangeur selon l'une des revendications précédentes, l'échangeur comporte un actionneur (40 ; 50) agencé pour contrôler le passage du fluide caloporteur sélectivement dans tout ou partie du faisceau. 7. Exchanger according to one of the preceding claims, the exchanger comprises an actuator (40; 50) arranged to control the passage of the heat transfer fluid selectively in all or part of the beam.
8. Echangeur selon la revendication précédente, l'actionneur comporte un obturateur mobile, par exemple mobile en translation, qui selon sa position provoque ou non l'obturation de la sortie intermédiaire et ainsi l'écoulement du fluide caloporteur dans tout le faisceau ou dans une moitié seulement du faisceau. 8. Exchanger according to the preceding claim, the actuator comprises a movable shutter, for example movable in translation, which in its position or not causes the closing of the intermediate outlet and thus the flow of heat transfer fluid throughout the beam or in only half of the beam.
9. Echangeur selon l'une des revendications 1 à 7, l'échangeur comportant un actionneur directement intégré dans le faisceau de l'échangeur. 9. Exchanger according to one of claims 1 to 7, the exchanger comprising an actuator directly integrated into the exchanger beam.
10. Echangeur selon l'une des revendications précédentes, l'actionneur comportant un élément thermostatique, de manière à former par exemple une vanne thermostatique, ou un élément piloté électriquement qui se déplacent linéairement ou en mouvement de translation. 10. Exchanger according to one of the preceding claims, the actuator comprising a thermostatic element, so as to form for example a thermostatic valve, or an electrically controlled element that move linearly or in translational motion.
1 1 . Echangeur selon la revendication précédente, le contrôle de ces éléments est réalisé par un suivi de : 1 1. Exchanger according to the preceding claim, the control of these elements is achieved by a follow-up of:
- La température de l'air qui traverse l'échangeur  - The temperature of the air passing through the exchanger
- La température du liquide ou fluide caloporteur qui traverse l'échangeur - The temperature of the liquid or coolant that passes through the heat exchanger
- Les températures de l'air et du liquide qui traversent l'échangeur - The temperatures of the air and the liquid that cross the exchanger
12. Echangeur selon l'une des revendications 1 à 3, le faisceau d'échange thermique comporte des tubes entre lesquels circule le fluide caloporteur. 12. Exchanger according to one of claims 1 to 3, the heat exchange bundle comprises tubes between which circulates the heat transfer fluid.
13. Echangeur selon la revendication précédente, l'échangeur comportant un actionneur qui permet de basculer d'un mode de fonctionnement à l'autre, étant déporté dans les tubulures du liquide ou directement intégré dans le faisceau de l'échangeur. 13. Exchanger according to the preceding claim, the exchanger comprising an actuator that switches from one operating mode to another, being offset in the liquid pipes or directly integrated in the heat exchanger.
14. Echangeur selon la revendication précédente, l'actionneur comporte un élément piloté électriquement, sous la forme d'un élément pivotant. 14. Exchanger according to the preceding claim, the actuator comprises an electrically controlled element in the form of a pivoting element.
PCT/EP2017/081985 2016-12-09 2017-12-08 Heat exchanger, in particular a charge air heat exchanger for a motor vehicle WO2018104506A1 (en)

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EP17828858.5A EP3551953A1 (en) 2016-12-09 2017-12-08 Heat exchanger, in particular a charge air heat exchanger for a motor vehicle

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FR1662210A FR3060108B1 (en) 2016-12-09 2016-12-09 HEAT EXCHANGER, IN PARTICULAR EXHAUST AIR EXCHANGER FOR MOTOR VEHICLE
FR1662210 2016-12-09

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CN110300877A (en) 2019-10-01

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