GB2312738A - Heat exchanger assembly - Google Patents

Heat exchanger assembly Download PDF

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Publication number
GB2312738A
GB2312738A GB9609219A GB9609219A GB2312738A GB 2312738 A GB2312738 A GB 2312738A GB 9609219 A GB9609219 A GB 9609219A GB 9609219 A GB9609219 A GB 9609219A GB 2312738 A GB2312738 A GB 2312738A
Authority
GB
United Kingdom
Prior art keywords
heat exchanger
assembly
gap
air
radiator
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.)
Withdrawn
Application number
GB9609219A
Other versions
GB9609219D0 (en
Inventor
Brian Launchbury
Iain Hamilton Murdoch
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.)
MG Rover Group Ltd
Original Assignee
MG Rover Group 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 MG Rover Group Ltd filed Critical MG Rover Group Ltd
Priority to GB9609219A priority Critical patent/GB2312738A/en
Publication of GB9609219D0 publication Critical patent/GB9609219D0/en
Publication of GB2312738A publication Critical patent/GB2312738A/en
Withdrawn legal-status Critical Current

Links

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
    • 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
    • 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
    • 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
    • B60K11/08—Air inlets for cooling; Shutters or blinds therefor
    • 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
    • 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
    • F01P2003/182—Arrangements or mounting of liquid-to-air heat-exchangers with multiple 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
    • 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
    • F28D2021/0084—Condensers
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

A heat exchanger assembly 10 for a motor vehicle is disclosed which comprises a first heat exchanger 11 and a second heat exchanger 12 positioned in front of the first heat exchanger 11 and spaced apart from it by a gap 14. The gap 14 is enclosed by a seal 13 which prevents air 16 entering or leaving the gap except through one of the heat exchangers 11, 12. The seal may be made of a honeycomb material (35, figure 4 ). The honeycomb material defines a plurality of air passages (36A-36N).

Description

A HEAT EXCHANGER ASSEMBLY FOR A MOTOR VEHICLE This invention relates to heat exchanger assemblies for motor vehicles.
It is known to provide separate heat exchangers for different systems on a motor vehicle. One such prior art arrangement provides a first heat exchanger for a cooling system positioned towards the front of the vehicle and a second heat exchanger acting as the condenser for an air conditioning system positioned in front of the first heat exchanger and spaced apart from it.
It is an object of this invention to provide an improved heat exchanger assembly.
According to the invention there is provided a heat exchanger assembly for a motor vehicle comprising a first heat exchanger for connection to an engine cooling system and a second heat exchanger for connection to a secondary cooling circuit, the first heat exchanger being spaced apart from the second heat exchanger to define a gap therebetween, wherein the gap is covered by a sealing member arranged to prevent air entering or leaving the gap except by passing through the heat exchangers.
The sealing member forms a ducting means connecting the first and second heat exchangers.
The sealing member may be made from a honeycomb material.
The assembly may further comprise a fan positioned behind the first heat exchanger, operable to draw air through part of the assembly.
In the alternative, the fan may be positioned in front of the second heat exchanger and may be operable to propel air through part of the assembly.
The second heat exchanger may be positioned in front of the first heat exchanger with respect to the normal direction of travel of the motor vehicle.
The invention will now be described by way of example with reference to the accompanying drawings in which: figure 1 is a section through a heat exchanger assembly according to a first embodiment of the invention; figure 2 is an isometric view of the heat exchanger assembly of figure 1; figure 3 is a section through a heat exchanger assembly according to a second embodiment of the invention; figure 4 is an isometric view of the heat exchanger assembly of figure 3; and figure 5 is a section through a heat exchanger assembly according to a third embodiment of the invention.
With reference to figures 1 and 2, a heat exchanger assembly 10 comprises a first heat exchanger in the form of a radiator 11 for a cooling system (not shown in detail) and a second heat exchanger in the form of a condenser 12 for an air conditioning system (not shown in detail).
The radiator 11 is positioned towards the front of a motor vehicle (not shown) and the condenser 12 is positioned in front of, and spaced apart from, the radiator 11.
A seal 13 fully encloses the gap 14 between the heat exchangers 11, 12. The seal 13 is a ducting means made from an aluminium sheet folded to form four sides (not shown in detail) joining the corresponding edges of the condenser 12 and the radiator 11.
A ducted fan 15 is positioned behind the radiator 11 and draws cooling air 16 through the condenser 12, the gap 14 and through the radiator 11 before dispersing the air 16 into the engine bay (not shown) behind the fan 15.
The seal 13 prevents air 17 from being drawn into the gap 14 thereby by-passing the condenser 12. If no seal 13 were present, the fan 15 would draw air 16, 17 through the path of least resistance, which in this case is the gap 14.
The seal 13 of figure 1 is therefore advantageous in providing greater cooling efficiency of the condenser 12, as without it the flow of air 17 drawn in through the gap 14 would reduce the flow of air 16 passing through the condenser 12.
With reference to figures 3 and 4, a second embodiment of the invention provides a heat exchanger assembly comprising a radiator 31 with a condenser 32 positioned in front of a radiator 31 and spaced apart from it.
A clear passage 34 exists between the condenser 32 and the radiator 31. Passage 34 is enclosed by a honeycomb material 35 which provides a ducting means and defines a plurality of air passages 36A to 36n (not shown in entirety).
The air passages 36A to 36n provide a clear path for air 37 to be directed through the outer part of the radiator 31.
The clear passage 34 allows air 38 to pass through the condenser 32, through the gap 34 and through the central portion of the radiator 31.
If a fan (not shown) is positioned in front of the condenser 32, it will propel air 38 through the assembly 30. If a fan is positioned behind the radiator 31 in a central position, it will draw air 38 through the condenser 32, the gap 34 and the central portion of the radiator 31.
The arrangement of the second embodiment of the invention is advantageous because the honeycomb section works as a seal to prevent air entering or leaving the gap except through the condenser 32 and radiator 31 respectively, whilst also providing the same effect for directing air 37 to the radiator 31 as the vehicle moves forwards.
With reference to figure 5, a heat exchanger assembly 50 comprises a radiator 51 positioned towards the front of a vehicle (not shown) and a condenser 52 positioned in front of, and spaced apart from, the radiator 51.
A seal 53 fully encloses the gap 54 between the heat exchangers 51, 52. The seal 53 is a ducting means made from an aluminium sheet folded to form four sides (not shown in detail) joining the corresponding edges of the condenser 52 and the radiator 51.
A ducted fan 55 is positioned in front of the condenser and propels cooling air 56 through the condenser 52, the gap 54 and the radiator 51, after which it is dispersed into the engine bay (not shown) behind the radiator 51.
The assembly 50 is a similar arrangement to the assembly 10 of figure 1, with the exception that the fan 55 is mounted in front of the condenser 52, instead of behind the radiator 51 as in figure 1. This means that the seal 53 now acts to prevent cooling air 56 being forced out of the gap 54 sideways 57 as that would, without the seal 53, be the path of least resistance.
In this manner, the seal 53 of figure 5 improves the efficiency of the assembly 50 for front mounted fans 55 by reducing the escape of cooling air 56 sideways 57 and ensuring that it all passes through the radiator core 51.
It will be appreciated that the fans 15, 55 of figures 1 and 5 are not an essential part of their respective assemblies 10, 50 and that the same advantages accrue when only ram air cooling is employed.
It will also be appreciated that the assembly 30 of figures 3 and 4 could be used as a direct replacement for the heat exchanger arrangements of figures 1, 2, and 5.

Claims (1)

1. A heat exchanger assembly for a motor vehicle comprising a first heat exchanger for connection to an engine cooling system and a second heat exchanger for connection to a secondary cooling circuit, the first heat exchanger being spaced apart from the second heat exchanger to define a gap therebetween, wherein the gap is covered by a sealing member arranged to prevent air entering or leaving the gap except by passing through the heat exchangers.
2 An assembly according to Claim 1 wherein the sealing member forms a ducting means connecting the first and second heating exchangers.
3 An assembly according to Claim 2 wherein the sealing member is made from a honeycomb material.
4 An assembly according to any preceding claim wherein the assembly further comprises a fan positioned behind the first heat exchanger, operable to draw air through part of the assembly.
5 An assembly according to any one of Claims 1 to 3 wherein the assembly further comprises a fan positioned in front of the second heat exchanger, operable to propel air through part of the assembly.
6 An assembly according to any preceding claim wherein the second heat exchanger is positioned in front of the first heat exchanger with respect to the normal direction of travel of the motor vehicle.
7 A heat exchanger assembly substantially as described herein with reference to the accompanying drawings.
GB9609219A 1996-05-02 1996-05-02 Heat exchanger assembly Withdrawn GB2312738A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9609219A GB2312738A (en) 1996-05-02 1996-05-02 Heat exchanger assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9609219A GB2312738A (en) 1996-05-02 1996-05-02 Heat exchanger assembly

Publications (2)

Publication Number Publication Date
GB9609219D0 GB9609219D0 (en) 1996-07-03
GB2312738A true GB2312738A (en) 1997-11-05

Family

ID=10793101

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9609219A Withdrawn GB2312738A (en) 1996-05-02 1996-05-02 Heat exchanger assembly

Country Status (1)

Country Link
GB (1) GB2312738A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB463303A (en) * 1935-09-20 1937-03-22 Thomas Pitt De Paravicini Oil coolers for aircraft
GB2182008A (en) * 1985-10-28 1987-05-07 Steyr Daimler Puch Ag Cooling system for cooling a liquid coolant in an immersible motor vehicle
US4938303A (en) * 1988-07-23 1990-07-03 Daimler-Benz Ag Cooling air circulation system in the front end of a motor vehicle
US5046554A (en) * 1990-02-22 1991-09-10 Calsonic International, Inc. Cooling module
EP0487098A1 (en) * 1990-11-23 1992-05-27 Nippondenso Co., Ltd. Cooling system for a water cooled internal combustion engine for vehicle having an air conditioning apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB463303A (en) * 1935-09-20 1937-03-22 Thomas Pitt De Paravicini Oil coolers for aircraft
GB2182008A (en) * 1985-10-28 1987-05-07 Steyr Daimler Puch Ag Cooling system for cooling a liquid coolant in an immersible motor vehicle
US4938303A (en) * 1988-07-23 1990-07-03 Daimler-Benz Ag Cooling air circulation system in the front end of a motor vehicle
US5046554A (en) * 1990-02-22 1991-09-10 Calsonic International, Inc. Cooling module
EP0487098A1 (en) * 1990-11-23 1992-05-27 Nippondenso Co., Ltd. Cooling system for a water cooled internal combustion engine for vehicle having an air conditioning apparatus

Also Published As

Publication number Publication date
GB9609219D0 (en) 1996-07-03

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)