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.
• 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 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.
• 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.
• 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)
• 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.
• 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 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.
• 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.
• 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:
• 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 exchanger 7 can thus have two modes of operation.
• the channels 31 of the bundle are formed between two plates 39, as can be seen 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 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.
• 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.
• 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.
• 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 heat exchange bundle 60 comprises tubes 61 between which the coolant circulates.
• An air inlet 70 and an air outlet 71 are provided.
• 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.
• 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)
• Exhaust-Gas Circulating Devices (AREA)
• Air-Conditioning For Vehicles (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=58347552

Family Applications (1)

Country Status (4)

Cited By (1)

Families Citing this family (2)

Citations (2)

Family Cites Families (13)

• 2016
  • 2016-12-09 FR FR1662210A patent/FR3060108B1/fr not_active Expired - Fee Related
• 2017
  • 2017-12-08 EP EP17828858.5A patent/EP3551953A1/de not_active Withdrawn
  • 2017-12-08 CN CN201780086029.8A patent/CN110300877B/zh not_active Expired - Fee Related
  • 2017-12-08 WO PCT/EP2017/081985 patent/WO2018104506A1/fr not_active Ceased

Patent Citations (2)

Non-Patent Citations (1)

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