EP2792988A1 - Integrierter wärmetauscher für ein fahrzeug - Google Patents

Integrierter wärmetauscher für ein fahrzeug Download PDF

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Publication number
EP2792988A1
EP2792988A1 EP12858280.6A EP12858280A EP2792988A1 EP 2792988 A1 EP2792988 A1 EP 2792988A1 EP 12858280 A EP12858280 A EP 12858280A EP 2792988 A1 EP2792988 A1 EP 2792988A1
Authority
EP
European Patent Office
Prior art keywords
exhaust gas
coolant
exchanging part
heat exchanging
oil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12858280.6A
Other languages
English (en)
French (fr)
Other versions
EP2792988A4 (de
EP2792988B1 (de
Inventor
Tae Jin Kim
Yong Kuk Cho
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Korens Co Ltd
Original Assignee
Korens Co Ltd
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 Korens Co Ltd filed Critical Korens Co Ltd
Publication of EP2792988A1 publication Critical patent/EP2792988A1/de
Publication of EP2792988A4 publication Critical patent/EP2792988A4/de
Application granted granted Critical
Publication of EP2792988B1 publication Critical patent/EP2792988B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/002—Cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/001—Heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/20—Cooling circuits not specific to a single part of engine or machine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • 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
    • 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
    • F28D9/005—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 the plates having openings therein for both heat-exchange media
    • 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
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/04—Lubricant cooler
    • F01P2060/045—Lubricant cooler for transmissions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/08—Cabin heater
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/16—Outlet manifold
    • 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
    • F28D2021/0089—Oil coolers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2280/00—Mounting arrangements; Arrangements for facilitating assembling or disassembling of heat exchanger parts
    • F28F2280/06—Adapter frames, e.g. for mounting heat exchanger cores on other structure and for allowing fluidic connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • F28F9/002—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core with fastening means for other structures

Definitions

  • the present invention relates, in general, to a heat exchanger for a vehicle and, more particularly, to an integrated heat exchanger for a vehicle, in which an exhaust gas recirculation (EGR) cooler and an oil cooler are integrated, thereby making it possible to optimize the use of space within the vehicle and considerably improve the heat exchanging performance of exhaust gas, coolant, and oil.
  • EGR exhaust gas recirculation
  • Vehicles are equipped with various heat exchangers such as a radiator for cooling a coolant of an engine, an automotive transmission oil cooler for cooling oil of an automotive transmission, an engine oil cooler for cooling oil for the engine, an exhaust gas recirculation (EGR) cooler for cooling an EGR gas, a fuel cooler for cooling fuel, and a charge air cooler for cooling air suctioned toward the engine.
  • a radiator for cooling a coolant of an engine an automotive transmission oil cooler for cooling oil of an automotive transmission
  • an engine oil cooler for cooling oil for the engine
  • EGR exhaust gas recirculation
  • fuel cooler for cooling fuel
  • charge air cooler for cooling air suctioned toward the engine.
  • heat exchangers such as a condenser of an air conditioner are densely installed around the radiator disposed in the front of the vehicle, along with the automotive transmission oil cooler, the engine oil cooler, the charge air cooler, and the fuel cooler.
  • the EGR cooler is installed on an exhaust system of the vehicle, and a coolant line for supplying the coolant for the engine to the EGR cooler is provided.
  • the EGR cooler is far away from the engine, and the coolant line passes through the oil cooler. As such, the coolant line is very long and complicated.
  • an object of the present invention is to provide an integrated heat exchanger for a vehicle, in which an exhaust gas recirculation (EGR) cooler and an oil cooler are integrally and closely coupled, thereby making it possible to reduce a space around the radiator, simplify the layout of coolant and oil lines, and thus effectively overcome space restrictions within the vehicle.
  • EGR exhaust gas recirculation
  • Another object of the present invention is to provide an integrated heat exchanger for a vehicle, in which a coolant rapidly warms up automotive transmission oil in the event of cold starting of the vehicle, thereby making it possible to effectively realize improvement in fuel economy and reduction in exhaust gas.
  • the present invention provides an integrated heat exchanger for a vehicle, which includes:
  • the mounting plate may include a first mounting plate coupled to the upper surface of the housing of the exhaust gas heat exchanging part and a second mounting plate coupled to the lower end of the oil heat exchanging part, both of which are mutually coupled by fasteners, and the first and second mounting plates may have holes communicating with each other. Further, the hole of the first mounting plate may communicate with the first coolant channels of the exhaust gas heat exchanging part, and the hole of the second mounting plate may communicate with the second coolant channels of the oil heat exchanging part.
  • the housing of the exhaust gas heat exchanging part may be coupled with a pair of fixing brackets on opposite left and right sides of an upper end thereof.
  • the first mounting plate may be coupled to the fixing brackets.
  • the second mounting plate may be coupled to an upper surface of the first mounting plate.
  • the second mounting plate may have an annular sealing groove which is formed around the hole thereof and into which a sealing member is fitted.
  • exhaust gas tubes of the exhaust gas heat exchanging part may be stacked in a direction perpendicular to a direction in which the plates of the oil heat exchanging part are stacked.
  • the exhaust gas heat exchanging part and the oil heat exchanging part are closely integrated by the first and second mounting plates and the sealing member. Thereby, it is possible to reduce a space around the radiator, simplify the layout of the coolant and oil lines, and effectively overcome space restrictions within the vehicle.
  • the coolant As a coolant whose temperature is increased by exchanging heat with an exhaust gas heats oil within the oil heat exchanging part, the coolant rapidly warms up the automotive transmission oil in the event of initial cold starting of the vehicle. Thereby, it is possible to effectively realize improvement in fuel economy and reduction in exhaust gas.
  • FIGS. 1 to 9 show an integrated heat exchanger for a vehicle according to an embodiment of the present invention.
  • an integrated heat exchanger for a vehicle includes an exhaust gas heat exchanging part 10 that exchanges heat between an exhaust gas and a coolant, and an oil heat exchanging part 20 that exchanges heat between oil and the coolant.
  • the exhaust gas heat exchanging part 10 includes a housing 11 and a plurality of exhaust gas tubes 12 installed in the housing 11.
  • the housing 11 includes a first housing 11a and a second housing 11b assembled with each other, and the first housing 11a and the second housing 11b are formed in a structure having a C-shaped cross section.
  • the first housing 11a is provided with a fitting flange 11c at a lower end thereof, and the second housing 11b is provided with a fitting ridge 11d at an upper end thereof.
  • the fitting flange 11c of the first housing 11a and the fitting ridge 11d of the second housing 11b are engaged and coupled by welding.
  • a plurality of exhaust gas tubes 12 are disposed in an inner upper space of the housing 11. Particularly, the plurality of exhaust gas tubes 12 are fitted and assembled into the first housing 11a.
  • a bypass passage 43 sealed against the exhaust gas tubes 12 is formed in an inner lower space of the housing 11. Especially, the bypass passage 43 corresponds to an inner space of the second housing 11b.
  • An exhaust gas inflow flange 13 is coupled to one end of the housing 11, and an exhaust gas outflow block 14 is coupled to the other end of the housing 11.
  • the first housing 11a is provided with first and second protrusions 18a and 18b on an upper surface thereof.
  • a coolant inflow pipe 31 is connected to the first protrusion 18a, and the second protrusion 18b is provided with a hole 18c through which the coolant flows.
  • An upper surface of the second protrusion 18b is coupled with a first mounting plate 51 (to be described below) in an airtight way.
  • the exhaust gas inflow flange 13 is configured so that a first inflow opening 13a and a second inflow opening 13b are divided by a partition 13c.
  • An exhaust gas introduced through the first inflow opening 13a flows through exhaust gas channels 41 of the exhaust gas tubes 12, and an exhaust gas introduced through the second inflow opening 13b flows through the bypass passage 43.
  • a bypass valve (not shown) and an exhaust gas recirculation (EGR) valve (not shown) are installed on a side of the exhaust gas inflow flange 13.
  • One end of the exhaust gas outflow block 14 is provided with an opening 14b.
  • the opening 14b communicates with the exhaust gas channels 41 of the exhaust gas tubes 12 and the bypass passage 43.
  • the other end of the exhaust gas outflow block 14 is provided with a flange 14a to which an exhaust pipe (not shown) is connected.
  • the exhaust gas channels 41 are formed in the respective exhaust gas tubes 12.
  • a turbulator (not shown) made up of, for instance, wavy fins or offset fins may be installed in each exhaust gas channel 41.
  • a plurality of embossments 12f are formed on an outer surface of each exhaust gas tube 12.
  • a plurality of first coolant channels 42 are airtightly formed between the stacked exhaust gas tubes 12 by the housing 11, particularly the first housing 11a. As shown in FIG. 8 , the first coolant channels 42 directly communicate with the coolant inflow pipe 31. Thus, the coolant flows through the coolant inflow pipe 31 into the first coolant channels 42.
  • the second housing 11b is provided with a plurality of reinforcing embossments 11e on the bottom thereof. Rigidity of the second housing 11b can be reinforced by the reinforcing embossments 11e.
  • each exhaust gas tube 12 is provided with a first tube expansion 12a, and the other end of each exhaust gas tube 12 is provided with a second tube expansion 12b.
  • first tube expansions 12a of the exhaust gas tubes 12 are airtightly coupled to the side of the first exhaust gas inflow opening 13a of the exhaust gas inflow flange 13
  • second tube expansions 12b of the exhaust gas tubes 12 are airtightly coupled to the side of the opening of the exhaust gas outflow block 14.
  • each exhaust gas tube 12 is provided with a cross-section expansion 17 whose cross section is expanded to be greater than the other portion.
  • the neighboring cross-section expansions 17 are airtightly coupled.
  • the bypass passage 43 is formed in the inner lower space of the housing 11 so as to be sealed against the first coolant channels 42 between the exhaust gas tubes 12.
  • the oil heat exchanging part 20 is configured so that a plurality of plates 21, 22 and 23 are vertically stacked at regular intervals.
  • the plurality of plates 21 are stacked between the lowermost plate 22 and the uppermost plate 23.
  • a coolant discharge pipe 32 through which the coolant is discharged is connected to one side of an upper end of the oil heat exchanging part 20.
  • a lower end of the oil heat exchanging part 20 and an upper surface of the housing 11 of the exhaust gas heat exchanging part 10 are coupled via mounting plates 51 and 52. Thereby, the integrated heat exchanger can be formed.
  • the plates 21, 22 and 23 are provided with inclined edges 21a, 22a and 23a, respectively. As the plates 21, 22 and 23 are vertically stacked, the neighboring inclined edges 21a, 22a and 23a of the plates 21, 22 and 23 are mutually coupled. As a result, a predetermined gap is formed between the neighboring plates 21 and 22, between the neighboring plates 21 and 23, and between the neighboring plates 21 and 21. These predetermined gaps are formed into the plurality of oil channels 44 and the plurality of second coolant channels 45. The plurality of oil channels 44 and the plurality of second coolant channels 45 are alternately formed. A turbulator (not shown) made up of, for instance, wavy fins or offset fins may be disposed in each oil channel 44. No turbulator is provided in each second coolant channel 45 in order to prevent a pressure loss of the coolant.
  • Each plate 21 is provided with a pair of oil openings 21b, and a pair of flanges protruding downward around the respective oil openings 21b.
  • the oil openings 21b of the plates 21 are formed to correspond to each other in a vertical direction.
  • the oil openings 21b of the neighboring plates 21 are closely coupled, and the oil opening 21b and the oil channel 44 communicate with each other.
  • Each plate 21 is provided with a pair of coolant openings 21c, and a pair of flanges protruding upward around the respective coolant openings 21c.
  • the oil openings 21c of the plates 21 are formed to correspond to each other in a vertical direction. Thus, as the plurality of plates 21 are vertically stacked, the oil openings 21c of the neighboring plates 21 are closely coupled, and the oil opening 21c and the second coolant channel 45 communicate with each other.
  • the lowermost plate 22 is provided with one coolant opening 22c.
  • the coolant opening 22c of the lowermost plate 22 communicates with a hole 51c of the first mounting plate 51 (to be described below) and a hole 52c of the second mounting plate 52 (to be described below).
  • a pair of oil pipes 24 and 25 are connected to the respective oil openings 23b of the uppermost plate 23. Oil flows through the plurality of oil channels 44, and then circulates through the oil pipes 24 and 25 toward an automotive transmission 4 (see FIG. 10 ). Further, a coolant discharge pipe 32 communicating with the second coolant channels 45 is connected to the coolant opening 23c of the uppermost plate 23.
  • the upper surface of the housing 11 of the exhaust gas heat exchanging part 10 and the lower end of the oil heat exchanging part 20 are firmly coupled via the mounting plates 51 and 52.
  • the first mounting plate 51 of the mounting plates 51 and 52 is coupled to the upper surface of the housing 11 of the exhaust gas heat exchanging part 10, and the second mounting plate 52 is coupled to the lower end of the oil heat exchanging part 20.
  • the first and second mounting plates 51 and 52 are mutually coupled by fasteners.
  • a pair of fixing brackets 15a and 15b are coupled on opposite left and right sides of the upper end of the housing 11 of the exhaust gas heat exchanging part 10 by welding.
  • the first mounting plate 51 is coupled to the fixing brackets 15a and 15b by bolts.
  • the second mounting plate 52 is coupled to the top of the first mounting plate 51 by bolts.
  • the first mounting plate 51 and the second mounting plate 52 have respective holes 51c and 52c communicating with each other.
  • annular sealing groove 52a is formed around the hole 52c of the second mounting plate 52.
  • a sealing member 55 such as an O-ring is fitted into the sealing groove 52a.
  • the second protrusion 18b of the housing 11 of the exhaust gas heat exchanging part 10 is airtightly coupled with the bottom of the first mounting plate 51.
  • the hole 18c of the second protrusion 18b communicates with the holes 51c and 52c of the first and second mounting plates 51 and 52 in a sealed state.
  • the exhaust gas tubes 12 of the exhaust gas heat exchanging part 10 are configured to be stacked in the leftward/rightward direction, whereas the plates 21, 22 and 23 of the oil heat exchanging part 20 are configured to be stacked in the vertical direction.
  • the stacking direction of the exhaust gas tubes 12 of the exhaust gas heat exchanging part 10 and the stacking direction of the plates 21, 22 and 23 of the oil heat exchanging part 20 are perpendicular to each other, so that it is possible to make the overall size more compact and slim.
  • FIG. 10 shows a state in which the integrated heat exchanger of the present invention is applied to an engine 1 and an automotive transmission 4.
  • Coolant lines of an engine 1 and a radiator 2 are connected via a water pump 1a and a thermostat 1b, and a part of the coolant line of the engine 1 branches off so that a part of the coolant of the engine 1 is supplied to the exhaust gas heat exchanging part 10, and is in contact with the coolant inflow pipe 31 of the exhaust gas heat exchanging part 10.
  • Another coolant line extends from the coolant discharge pipe 32 of the oil heat exchanging part 20, passes through the heater core 3, and is connected to the engine 1.
  • oil pipes 24 and 25 of the oil heat exchanging part 20 are connected to oil lines 4a and 4b of the automotive transmission 4 so that the oil heat-exchanged by the oil heat exchanging part 20 circulates toward the automotive transmission 4.
  • the exhaust gas heat exchanging part 10 and the oil heat exchanging part 20 are closely integrated by the first and second mounting plates 51 and 52 and the sealing member 44.
  • some heat exchangers such as an oil cooler can be changed in position toward an EGR cooler (i.e. an exhaust gas heat exchanger).
  • an EGR cooler i.e. an exhaust gas heat exchanger
  • the first coolant channels 42 of the exhaust gas heat exchanging part 10 and the second coolant channels 45 of the oil heat exchanging part 20 are airtightly connected.
  • the coolant whose temperature is increased by heat exchanging (cooling) with the exhaust gas passing through the exhaust gas channels 41 within the exhaust gas heat exchanging part 10 flows into the second coolant channels 45 of the oil heat exchanging part 20, and efficiently exchanges heat with the oil passing through the oil channels 44 of the oil heat exchanging part 20.
  • the coolant whose temperature is increased by exchanging heat with the exhaust gas heats the oil within the oil heat exchanging part 20, the coolant rapidly warms up the automotive transmission oil in the event of initial cold starting of the vehicle, so that it is possible to effectively realize improvement in fuel economy and reduction in exhaust gas.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
EP12858280.6A 2011-12-13 2012-11-19 Integrierter wärmetauscher für ein fahrzeug Not-in-force EP2792988B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020110133946A KR101321064B1 (ko) 2011-12-13 2011-12-13 차량용 통합형 열교환기
PCT/KR2012/009779 WO2013089357A1 (ko) 2011-12-13 2012-11-19 차량용 통합형 열교환기

Publications (3)

Publication Number Publication Date
EP2792988A1 true EP2792988A1 (de) 2014-10-22
EP2792988A4 EP2792988A4 (de) 2015-10-21
EP2792988B1 EP2792988B1 (de) 2016-11-09

Family

ID=48612764

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12858280.6A Not-in-force EP2792988B1 (de) 2011-12-13 2012-11-19 Integrierter wärmetauscher für ein fahrzeug

Country Status (3)

Country Link
EP (1) EP2792988B1 (de)
KR (1) KR101321064B1 (de)
WO (1) WO2013089357A1 (de)

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EP3141861A1 (de) * 2015-09-09 2017-03-15 Sambo Motors Verfahren zur herstellung eines gehäuses für einen abgasrückführungskühler und gehäuseblech dafür

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US9522609B2 (en) 2013-12-31 2016-12-20 Hyundai Motor Company Thermal management system for fuel cell vehicles
KR101628129B1 (ko) 2014-11-13 2016-06-08 현대자동차 주식회사 통합된 냉각 시스템 및 이를 제어하는 방법
US10577989B2 (en) 2015-08-18 2020-03-03 Hanon Systems Vehicle oil warmer and heat exchange system
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EP2792988A4 (de) 2015-10-21
EP2792988B1 (de) 2016-11-09

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