GB2546547A - A heat exchanger system - Google Patents

A heat exchanger system Download PDF

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Publication number
GB2546547A
GB2546547A GB1601243.7A GB201601243A GB2546547A GB 2546547 A GB2546547 A GB 2546547A GB 201601243 A GB201601243 A GB 201601243A GB 2546547 A GB2546547 A GB 2546547A
Authority
GB
United Kingdom
Prior art keywords
radiator
heat exchanger
exchanger system
core
charge air
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Withdrawn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
GB1601243.7A
Other versions
GB201601243D0 (en
Inventor
Cummins Craig
Emery James
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.)
Denso Marston Ltd
Original Assignee
Denso Marston 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 Denso Marston Ltd filed Critical Denso Marston Ltd
Priority to GB1601243.7A priority Critical patent/GB2546547A/en
Publication of GB201601243D0 publication Critical patent/GB201601243D0/en
Priority to EP17150984.7A priority patent/EP3196576B1/en
Priority to BR102017000967-0A priority patent/BR102017000967B1/en
Priority to US15/410,823 priority patent/US10677144B2/en
Priority to CN201710049062.5A priority patent/CN107013311B/en
Publication of GB2546547A publication Critical patent/GB2546547A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • 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
    • F02B29/0412—Multiple heat exchangers arranged in parallel or in series
    • 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
    • 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
    • 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
    • F02B29/0425—Air cooled heat exchangers
    • F02B29/0431—Details or means to guide the ambient air to the heat exchanger, e.g. having a fan, flaps, a bypass or a special location in the engine compartment
    • 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
    • F28D1/0206—Heat exchangers immersed in a large body of liquid
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/40—Special vehicles
    • B60Y2200/41—Construction vehicles, e.g. graders, excavators
    • 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
    • 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
    • F01P2050/00—Applications
    • F01P2050/22—Motor-cars
    • 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
    • F01P2070/00—Details
    • F01P2070/52—Details mounting 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
    • F28D2021/0082—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
    • F28D2021/0091—Radiators
    • F28D2021/0094—Radiators for recooling the engine coolant
    • 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

Abstract

A heat exchanger system suitable for an off highway vehicle comprising a radiator 18 and a charge air cooler comprising two interconnected cores 14a, 14b. The first core 14a is mounted next to the radiator 18 so that air output from the first core does not pass through the radiator 18, the second core 14b is mounted upstream of the radiator 18. The first core may be mounted on top of the radiator. The first and second cores may be the same size. The system may include an oil cooler 16 in front of the radiator. The second core and the oil cooler may be angled with respect to the radiator.

Description

A Heat Exchanger System
The invention relates to a heat exchanger system. A known heat exchanger system for an off highway vehicle, is shown in Figure 1. Underneath the bonnet 12 of the vehicle, a charge air cooler 14 and oil cooler 16 are mounted upstream of a radiator 18, which itself is upstream of a fan 20. The charge air cooler 14 is mounted above the oil cooler 16. The system is compact, but has the drawback that all of the air reaching the radiator 18 has passed through either the charge air cooler 14 or the oil cooler 16 and therefore has been heated to some degree so that the cooling achieved by the radiator 18 is less effective.
According to the invention there is provided a heat exchanger system comprising a radiator and a charge air cooler, wherein the charge air cooler includes at least two interconnected cores, including a first core mounted next to the radiator, and a second core mounted upstream of the radiator in the air path, so that air output from the first charge air cooler core does not pass through the radiator.
As the air passing through one of the charge air cooler cores does not pass through the radiator, the air reaching the radiator has received less pre-heating and so the performance of the radiator is improved. Indeed, it might be possible to use a smaller radiator in order to achieve the desired performance in this system by means of the invention.
The first charge air cooler core may be mounted to one side of the radiator or underneath the radiator, but preferably is mounted on top of the radiator.
The second charge air cooler core may be at an angle to the radiator. The angle is preferably in the range 30 to 60°, and may be about 40 to 50°.
The system may further include an oil cooler upstream of the radiator. In a preferred embodiment, the oil cooler is tilted away from the radiator. This means that a longer oil cooler can be used, and also means that there is better access for cleaning between the charge air cooler and the radiator. The angle of tilt may be in the range 5 to 20° and preferably is in the range 8 to 12°. The second charge air cooler core is preferably mounted next to the oil cooler and may be mounted above the oil cooler.
An embodiment of the invention will now be described by way of example and with reference to the accompanying drawings in which:
Figure 1 is a schematic side elevation in cross-section of a heat exchanger system under the bonnet of an off highway vehicle;
Figure 2 is the same schematic view of a heat exchanger system according to the first embodiment of the invention;
Figure 3 is a perspective view of the charge air cooler of the first embodiment;
Figure 4 is a more detailed schematic side elevation of the heat exchanger system of the first embodiment; and,
Figure 5 is a side elevation of the heat exchanger system of the first embodiment.
The heat exchanger system 10 of the first embodiment comprises a radiator 18, an oil cooler 16 and a multiple core charge air cooler (CAC) 14. The CAC 14 comprises two interconnected cores 14a, 14b. The system 10 is arranged to be housed under the bonnet or grille 12 of an off highway vehicle.
Figure 2 is a schematic view which highlights the differences from the known system. A first CAC core 14a is mounted directly above the radiator 18, in other words it is mounted in a direction perpendicular to the air flow direction and generally in the plane of the radiator 18 so that it is neither upstream nor downstream of the radiator 18. It receives ambient, unheated air at its input, and the output from the first CAC core 14a is emitted downstream of the radiator 18.
The second CAC core 14b remains upstream of the radiator 18, but is tilted. The oil cooler 16 is also tilted away from the radiator 18 so that the upper part of the oil cooler 16 is further from the radiator 18 than the lower part of the oil cooler 16. This arrangement is shown in more detail in Figure 4. The second CAC core 14b is tilted forwards at an angle of 50° to the horizontal. The oil cooler 16 is tilted backwards at an angle of 10° to the vertical. The first and second CAC cores 14a, 14b are identical.
Figure 4 shows a shroud 22 leading from the fan 20 to the lower extent of the radiator 18 and the upper extent of the first CAC core 14a. A baffle plate 24 is provided between the lower edge of the first CAC core 14a and the adjacent side of the second CAC core 14b so that air preheated by the second CAC core 14b and oil cooler 16 cannot enter the first CAC core 14a. A cowl 26 is provided between the oil cooler 16 and the radiator 18 to improve the effectiveness of the fan 20 in drawing air through the system 10.
Figure 3 shows how the first and second CAC cores 14a, 14b are interconnected. At one end of the first CAC core 14a is a charge air inlet 30 leading to the charge air cooler inlet tank 32 which is connected to the inlet ends of both of the charge air cores 14a, 14b. The outlet ends of the CAC cores 14a, 14b are connected to a CAC outlet tank 34 which leads to a charge air outlet 36.
The multiple core charge air cooler 14 of the embodiment improves the performance of the radiator 18 and the system 10 as a whole. Because the air from the first CAC 14a does not enter the radiator 18, the radiator 18 receives less preheated air and so its performance is improved. The improvement of performance can be such that a smaller radiator can be used than in the known system in order to achieve the same or better performance. The tilting of the oil cooler 16 means that it is easier to clean the area between the oil cooler 16 and radiator 18, but also means that the oil cooler 16 can be taller, increasing the area for heat exchange and therefore improving again the heat exchange performance of the system 10.
In the embodiment shown, there is a fully closed baffle 24. The baffle 24 can be varied in other embodiments and can be partially or fully open (no baffle), so that the extent of the baffle can be used to further thermally balance the system.
While the embodiment shows two CAC cores 14a, 14b, in other embodiments there could be more than two cores, in particular three or four cores.

Claims (13)

Claims
1. A heat exchanger system comprising a radiator and a charge air cooler, wherein the charge air cooler includes at least two interconnected cores, including a first core mounted next to the radiator, and a second core mounted upstream of the radiator in the air path, so that air output from the first charge air cooler core does not pass through the radiator.
2. A heat exchanger system as claimed in claim 1, wherein the first charge air cooler core is mounted on top of the radiator.
3. A heat exchanger system as claimed in claim 1 or claim 2, wherein the first and second charge air cooler cores are of the same size.
4. A heat exchanger system as claimed in claim 1, 2 or 3, wherein the second charge air cooler core is at an angle to the radiator.
5. A heat exchanger system as claimed in claim 4, wherein the second charge air cooler core is at an angle to the radiator in the range 30 to 60°.
6. A heat exchanger system as claimed in claim 4, wherein the second charge air cooler core is at an angle to the radiator in the range 40 to 50°.
7. A heat exchanger system as claimed in any preceding claim, wherein the heat exchanger system further includes an oil cooler upstream of the radiator.
8. A heat exchanger system as claimed in claim 7, wherein the oil cooler is tilted away from the radiator.
9. A heat exchanger system as claimed in claim 8, wherein the angle of tilt is in the range 5 to 20°.
10. A heat exchanger system as claimed in claim 8, wherein the angle of tilt is in the range 8 to 12°.
11. A heat exchanger system as claimed in any of claims 7 to 10, wherein the second charge air cooler core is mounted above the oil cooler.
12. A heat exchanger system as claimed in any preceding claim, wherein there are only two charge air cooler cores.
13. A heat exchanger system substantially as described herein with reference to Figs 2, 3 and 4 of the accompanying drawings.
GB1601243.7A 2016-01-22 2016-01-22 A heat exchanger system Withdrawn GB2546547A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB1601243.7A GB2546547A (en) 2016-01-22 2016-01-22 A heat exchanger system
EP17150984.7A EP3196576B1 (en) 2016-01-22 2017-01-11 A heat exchanger system
BR102017000967-0A BR102017000967B1 (en) 2016-01-22 2017-01-17 heat exchanger system
US15/410,823 US10677144B2 (en) 2016-01-22 2017-01-20 Heat exchanger system
CN201710049062.5A CN107013311B (en) 2016-01-22 2017-01-20 Heat exchanger system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1601243.7A GB2546547A (en) 2016-01-22 2016-01-22 A heat exchanger system

Publications (2)

Publication Number Publication Date
GB201601243D0 GB201601243D0 (en) 2016-03-09
GB2546547A true GB2546547A (en) 2017-07-26

Family

ID=55534810

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1601243.7A Withdrawn GB2546547A (en) 2016-01-22 2016-01-22 A heat exchanger system

Country Status (5)

Country Link
US (1) US10677144B2 (en)
EP (1) EP3196576B1 (en)
CN (1) CN107013311B (en)
BR (1) BR102017000967B1 (en)
GB (1) GB2546547A (en)

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JP2019127766A (en) * 2018-01-25 2019-08-01 コベルコ建機株式会社 Construction machine
FR3093347B1 (en) * 2019-02-28 2022-08-12 Valeo Systemes Thermiques THERMAL REGULATION SYSTEM FOR A MOTOR VEHICLE
JP7205800B2 (en) * 2019-04-24 2023-01-17 マツダ株式会社 vehicle cooling system
JP7205801B2 (en) * 2019-04-24 2023-01-17 マツダ株式会社 vehicle cooling system
CN116512899A (en) * 2022-01-21 2023-08-01 康明斯新能源动力(上海)有限公司 Improved placement and orientation of fuel cell vehicle radiator

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Also Published As

Publication number Publication date
CN107013311B (en) 2020-01-03
US10677144B2 (en) 2020-06-09
EP3196576B1 (en) 2018-08-01
US20170211890A1 (en) 2017-07-27
CN107013311A (en) 2017-08-04
GB201601243D0 (en) 2016-03-09
BR102017000967A2 (en) 2017-08-01
EP3196576A1 (en) 2017-07-26
BR102017000967B1 (en) 2022-05-17

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