Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
  • B60K11/00—Arrangement in connection with cooling of propulsion units
  • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
  • B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
• • 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
  • F01P3/18—Arrangements or mounting of liquid-to-air heat-exchangers
• • 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
  • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
  • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
  • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
  • F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
  • F28D1/0426—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 the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element
  • F28D1/0435—Combination of units extending one behind the other
• • 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
  • F01P3/18—Arrangements or mounting of liquid-to-air heat-exchangers
  • F01P2003/185—Arrangements or mounting of liquid-to-air heat-exchangers arranged in parallel
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
  • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
  • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
  • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
  • F28D2021/0082—Charged air coolers
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
  • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
  • 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
  • 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
  • F28D2021/0091—Radiators
  • F28D2021/0094—Radiators for recooling the engine coolant

Definitions

• the present disclosure relates generally to engine cooling systems for motor vehicles and, more particularly, to a single loop dual radiator cooling module for such engine cooling systems.
• a dual radiator module which is adapted to fit into available packaging spaces, has lower air restriction values compared to thick single radiator modules, and which is configured for use with a single water pump for common coolant flow to both radiators.
• FIG. 1 is a diagrammatical view of a cooling system for use in a motor vehicle and which is equipped with a dual radiator module constructed in accordance with the present teachings;
• FIG. 2 is a rear perspective view of the dual radiator module constructed in accordance with an exemplary embodiment of the present disclosure;
• FIG. 3 is a front perspective view of the dual radiator module of the present disclosure:
• FIG. 4 is a top perspective view of the dual radiator module of the present disclosure
• FIG. 5 is a cross-sectional view illustrating an arrangement of the components associated with the cooling system equipped with the dual radiator module.
• FIG. 6 is a cross-sectional view illustrating an alternative arrangement of the components of the cooling system having the dual radiator module.
• cooling system 10 for use in a motor vehicle 12 is schematically shown.
• Cooling system 10 is operable for thermally managing various components of motor vehicle 12.
• cooling system 10 includes a first or primary fluid circuit 14 and a second or auxiliary fluid circuit 16.
• First fluid circuit 14 is configured to thermally manage an internal combustion engine 18 of motor vehicle 12 while second fluid circuit 16 is configured to thermally manage one or more auxiliary components 20 associated with motor vehicle 12.
• Cooling system 10 includes a pump 22 integrated into both fluid circuits 14, 16 that is operable to pump a common coolant therethrough. As such, fluid circuits 14, 16 share a common supply of coolant.
• An expansion tank (not shown) may be included to receive coolant overflow from the radiators associated with each of the fluid circuits 14, 16.
• First fluid circuit 14 is configured to thermostatically manage the temperature of engine 18. Coolant is supplied by pump 22 to a first heat exchanging device 24 associated with engine 18.
• first heat exchanging device 24 can include a coolant jacket of engine 18 that is configured to circulate coolant about and through engine 18 to transfer heat between engine 18 and the coolant for selectively heating or cooling engine 18.
• Downstream from first heat exchanging device 24 is a first thermostatic valve or thermostat 26 which selectively directs coolant between a first or primary radiator module 28 and a first radiator bypass 30 parallel to first radiator module 28 in response to the coolant temperature.
• First thermostat 26 includes an inlet 32 in fluid communication with an outlet 34 of first heat exchanging device 24, a first outlet 36 in fluid communication with an inlet 38 to first radiator module 28, and a second outlet 40 in fluid communication with an inlet 42 to first bypass 30.
• first thermostat 26 When the temperature of the coolant is below a first predefined temperature value, first thermostat 26 functions to direct coolant through first bypass 30 back to pump 22 so that the coolant bypasses first radiator module 28 and can be used, for example, in warming-up engine 18 during cold starts. Once the coolant has reached the first predefined coolant temperature value, first thermostat 26 begins to open and allows flow of the coolant to first radiator module 28 for transferring heat out of the coolant and into air flowing past first radiator module 28. The flow of air past first radiator module 28 results from operation of an onboard cooling fan 44 and/or movement of motor vehicle 12. Fan 44 can be driven by engine 18 through an accessory drive system or can, in the alternative, be a motor-driven unit. As the coolant temperature increases, first thermostat 26 continues to open such that all, or a substantial amount of the coolant discharged from first heat exchanging device 24 flows to first radiator module 28 for cooling engine 18 to a desired operating temperature.
• a portion of the coolant supplied to pump 22 is delivered to second fluid circuit 16 and flows to an inlet 46 of a second thermostatic valve or thermostat 48.
• Second thermostat 48 selectively directs the coolant between a second radiator module 50 and a second radiator bypass 52 in parallel thereto in response to the coolant temperature.
• second thermostat 48 has a first outlet 54 in fluid communication with second radiator module 50 and a second outlet 56 in fluid communication with second radiator bypass 52.
• Second thermostat 48 is configured to direct the coolant to second bypass 52 when the coolant temperature is below a second predefined temperature value. In such case, all or a substantial amount of the coolant flows through second bypass 52 to one or more second heat exchanging devices 58, thereby bypassing second radiator module 50.
• This arrangement is also useful during cold-start conditions when the auxiliary components 20 are relatively cold.
• second bypass 52 enables relatively quick warming of auxiliary components 20 when required to enhance performance of vehicle 12.
• second thermostat 48 starts to open inlet 54 and allows coolant to flow to second heat exchanging devices 58 through second radiator module 50. Coolant flowing through second radiator module 50 is cooled due to heat transferred from the coolant to air flowing past second radiator module 50 which may be located forward or aft of first radiator module 28 to benefit from the air flow resulting from operation of cooling fan 44 and/or movement of vehicle 12. With increasing coolant temperature, second thermostat 48 continues to open inlet 54 allowing more coolant to flow through second radiator module 50 to second heat exchanging devices 58. Second thermostat 48 may be configured such that eventually most, if not all, of the coolant in second fluid circuit 16 flows through second radiator module 50.
• second heat exchanging devices 58 may include, but not be limited to, one or more charged air coolers (CAC) for cooling engine intake air charged by a turbo/supercharger, one or more hydraulic oil coolers such as a power steering oil cooler (PSOC) and/or a transmission oil cooler (TOC).
• auxiliary components 20 may include, but not be limited to charge air for engine intake air, hydraulic oil for hydraulic functions onboard vehicle 12 and/or transmission oil for a transmission associated with the powertrain of vehicle 12. After passing through second heat exchanging devices 58, the coolant flows back to pump 22.
• second fluid circuit 16 the coolant is always able to flow to second heat exchanging devices 58 during operation of vehicle 12 regardless of temperature, either through second bypass 52, second radiator module 50, or both. This enable second fluid circuit 16 to respond quickly to instantaneous heat loads of auxiliary components 20 at one of more of second heat exchanging devices 58 (i.e., charge air cooler, hydraulic oil cooler, transmission oil cooler) to cool such heat loads relatively quickly.
• second heat exchanging devices 58 i.e., charge air cooler, hydraulic oil cooler, transmission oil cooler
• first radiator module 28 is configured as a dual radiator assembly 80 having a first radiator unit 100 and a second radiator unit 102.
• Each of the first and second radiator units have a reduced core thickness that, when plumbed in parallel, function to provide equal or greater cooling capacity in comparison to conventional single radiator units.
• a preferred construction of one exemplary embodiment of dual radiator assembly 80 will now be described in greater detail.
• first radiator module 28 in accordance with the present teachings is shown to include dual radiator assembly 80 having first radiator unit 100, second radiator unit 102, an upper inlet hose assembly 104 and a lower outlet hose assembly 106.
• first radiator unit 100 and second radiator unit 102 are plumbed in parallel to establish dual radiator assembly 80 that is configured for use with first fluid circuit 14 in cooling system 10, as shown in FIG. 1 .
• Inlet hose assembly 104 can include a first inlet hose 108, a second inlet hose 1 10, a Y-joint inlet connector 1 1 2, and an inlet supply tube 1 14.
• first inlet hose 108 is connected to an inlet port 1 16 of an inlet tank 1 17 associated with first radiator unit 100 while its opposite end is connected to one junction 1 12a of inlet connector 1 12.
• second inlet hose 1 10 is connected to an inlet port 1 18 of an inlet tank 1 19 associated with second radiator unit 102 while its opposite end is connected to a second junction 1 12b of inlet connector 1 12.
• Supply tube 1 14 is adapted to provide fluid communication via a hose (not shown) between outlet 36 of first thermostat 26 and a common inlet 1 12c of inlet connector 1 12. Accordingly, coolant flowing from first heat exchanger 24 through first thermostat 26 is supplied through inlet hose assembly 104 to the inlet tanks 1 17,1 19 of both radiator units 100, 102 associated with dual radiator assembly 80.
• Outlet hose assembly 106 can include a first outlet hose or coupling 120, a second outlet hose or coupling 122, a Y-joint outlet connector 124, and an outlet supply tube 126.
• first outlet hose or coupling 120 is connected to an outlet port 128 of an outlet tank 129 associated with first radiator unit 100 while its opposite end is connected to one junction 124a of outlet connector 124.
• second outlet hose or coupling 122 is connected to an outlet port 130 of an outlet tank 131 associated with second radiator unit 102 while its opposite end is connected to a second junction 124b of outlet connector 124.
• Outlet supply tube 126 is adapted to provide fluid communication via a hose (not shown) between a common inlet 124c of outlet connector 124 and pump 22. Accordingly, the coolant discharged from the outlets of dual radiator assembly 80 is supplied to pump 22.
• dual radiator assembly 80 utilizes a pair of radiator units 100,102 having reduced core thicknesses yet an increased total cross-sectional area to provide the required heat transfer characteristics. Such thinner radiator units 100,102 also produce less airflow restriction (air-side pressure drop) to cooling system 10. Additionally, the plumbing of dual radiator assembly 80 in such a parallel arrangement with common inlet and outlet hoses permits use of a single water pump 22.
• dual radiator assembly 80 is configured to generally locate a larger first larger radiator unit 100 in a conventional position in front of cooling fan 44 while a smaller second radiator unit 102 is located in the available vehicle packaging space either forward or aft of first radiator unit 100.
• first radiator unit 100 can have a 27mm core depth and second radiator unit 102 can have a 27mm core depth and be located in front of first radiator unit 100 right below the hood line of vehicle 12.
• auxiliary components 20 associated with second fluid circuit 16 which can include charged-air cooler 20A and an oil cooler 20B.
• a condenser 88 associated with the vehicle's HVAC system is shown located forward of dual radiator assembly 80.
• An alternative arrangement is shown in FIG. 6 wherein greater spacing is provided between first radiator unit 100 and second radiator unit 102 and charged-air cooler 20A is located out of the radiator airstream.
• first radiator unit 100 and second radiator unit 102 are plumbed in parallel regardless of the package spacing or orientation therebetween.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Physics & Mathematics (AREA)
• Thermal Sciences (AREA)
• Transportation (AREA)
• Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

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ID=51206809

Family Applications (1)

Country Status (5)

Families Citing this family (11)

Citations (5)

Family Cites Families (25)

• 2013
  • 2013-01-21 US US13/746,068 patent/US20140202669A1/en not_active Abandoned
• 2014
  • 2014-01-14 JP JP2014560147A patent/JP5835505B2/ja not_active Expired - Fee Related
  • 2014-01-14 DE DE112014000492.8T patent/DE112014000492T5/de not_active Withdrawn
  • 2014-01-14 CN CN201480004884.6A patent/CN104937232A/zh active Pending
  • 2014-01-14 WO PCT/US2014/011384 patent/WO2014113351A1/en active Application Filing

Patent Citations (5)

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