EP0197823A1 - Wärmetauscher für Kraftfahrzeug, insbesondere Abgaswärmetauscher - Google Patents

Wärmetauscher für Kraftfahrzeug, insbesondere Abgaswärmetauscher Download PDF

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Publication number
EP0197823A1
EP0197823A1 EP86400564A EP86400564A EP0197823A1 EP 0197823 A1 EP0197823 A1 EP 0197823A1 EP 86400564 A EP86400564 A EP 86400564A EP 86400564 A EP86400564 A EP 86400564A EP 0197823 A1 EP0197823 A1 EP 0197823A1
Authority
EP
European Patent Office
Prior art keywords
fluid
exhaust gases
tubes
box
envelope
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.)
Ceased
Application number
EP86400564A
Other languages
English (en)
French (fr)
Inventor
Ngy Srun Ap
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.)
Valeo SE
Original Assignee
Valeo SE
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
Priority claimed from FR8504155A external-priority patent/FR2579314A1/fr
Priority claimed from FR8504154A external-priority patent/FR2579311A1/fr
Application filed by Valeo SE filed Critical Valeo SE
Publication of EP0197823A1 publication Critical patent/EP0197823A1/de
Ceased legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02Header boxes; End plates
    • F28F9/0219Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M5/00Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/14Indicating devices; Other safety devices
    • F01P11/20Indicating devices; Other safety devices concerning atmospheric freezing conditions, e.g. automatically draining or heating during frosty weather
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0066Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • F28D7/0083Multi-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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/06Heat-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 having a single U-bend
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F28F27/02Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0089Oil coolers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0091Radiators
    • F28D2021/0096Radiators for space heating
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001Recuperative heat exchangers
    • F28D21/0003Recuperative heat exchangers the heat being recuperated from exhaust gases

Definitions

  • the invention relates to a heat exchanger for a motor vehicle, in particular of the type comprising a circuit for passing the exhaust gases of the internal combustion engine fitted to the vehicle, making it possible, during cold engine operation, to quickly heat the coolant and / or lubricating oil for this engine.
  • the invention provides a heat exchanger of the aforementioned type, which is relatively light.
  • the invention therefore provides a heat exchanger for a motor vehicle, comprising a bundle of tubes, the ends of which are mounted in a sealed manner in the holes of a manifold to which is fixed a fluid box into which the ends of the tubes open and which has at least one inlet and / or one outlet for a first fluid, characterized in that it comprises a tubular element interposed between the manifold and an envelope surrounding the bundle of tubes, this envelope being made of plastic or of a material light metal withstands high temperatures poorly, while the fluid box, manifold and tubular element are made of a material that withstands the high temperatures that exhaust gases can reach.
  • the tubular element is formed in one piece with the manifold.
  • the envelope is provided with an inlet and an outlet for a second fluid which circulates in said envelope and in the tubular element.
  • the first fluid flowing in the box above the you and the tubes of the bundle is formed by the exhaust gases of the engine
  • the second fluid flowing through the envelope is constituted by a liquid or by the air, in particular by the engine coolant or by the air for heating the passenger compartment of the vehicle.
  • the heat exchanger according to the invention provides aid for heating the passenger compartment of the vehicle, not only during the periods of starting and cold engine operation, but also outside these periods if desired.
  • the invention also provides that the aforementioned envelope contains a bundle of tubes traversed by the engine lubricating oil.
  • the lubricating oil is also heated by the exhaust gases, by means of the fluid which circulates in said envelope.
  • the fluid which circulates in said envelope can be an intermediate heat exchange fluid with the engine coolant or with the air for heating the passenger compartment of the vehicle, to avoid any possibility of pollution by gases. exhaust or lubricating oil.
  • FIG. 1 represents a heat exchanger according to the invention, intended to equip a motor vehicle comprising an internal combustion engine.
  • the exchanger comprises a fluid box 10 provided with an inlet pipe 12 and an outlet pipe 14, and comprising an internal partition 16, fixed or mobile, which divides the internal space of the tank 10 in two separate chambers which are connected respectively to the inlet manifold 12 and to the outlet manifold 14.
  • This box. fluid is sealingly mounted on the peripheral rim of a manifold 18, or tube plate, comprising holes 20 in which the ends of the tubes 22 of a bundle of U-shaped tubes are mounted in a conventional manner.
  • This bundle of tubes 22 is contained in a sealed manner in an envelope 24 comprising two tubes 26 and 28 by which it can be connected to a circuit of a fluid such as the coolant of the internal combustion engine or the heating air of the passenger compartment of the vehicle, or of an intermediate fluid, such as for example freon.
  • a fluid such as the coolant of the internal combustion engine or the heating air of the passenger compartment of the vehicle, or of an intermediate fluid, such as for example freon.
  • the manifold 18 of the exchanger is formed in one piece with a tubular element 30 having a peripheral rim 32 opposite the peripheral rim of the collector on which the fluid box is fixed 10.
  • This peripheral rim 32 of the tubular element 30 cooperates with a peripheral rim 34 of the end of the casing 24, to ensure the fixing of this casing to the tubular element 30, for example by means of a system of lugs or clamps 36.
  • One or more seals 38 are interposed between the peripheral flanges 32 and 34 of the tubular element 30 and of the casing 24.
  • the inlet 12 and outlet 14 pipes of the fluid box 10 are connected to the exhaust manifold of the internal combustion engine, so that the exhaust gases of this engine enter the box 10 through the pipe 12 , circulate in the tubes 22 of the bundle, return to the box 10 and exit from this box via the outlet pipe 14.
  • the fluid which circulates in the casing 24 is heated by the exhaust gases of the engine, the temperature of which is between 400 and 900 or 1000 ° C. approximately, depending on the case.
  • this fluid is the engine coolant, its temperature rises very quickly by heat exchange with the exhaust gases, which reduces the duration of engine temperature rise and at the same time reduces fuel consumption.
  • the fluid which circulates in the envelope 24 is the air brought into the passenger compartment of the vehicle, this air is heated very quickly and makes it possible to heat the passenger compartment, even if the engine has not reached its normal operating temperature. .
  • the envelope 24, the temperature of which is permanently maintained at a relatively low value, for example less than 100 ° C., by the fluid which circulates therein, can be made of a plastic material, or of light metallic material, while the fluid box 10, the manifold 18 and the tubular element 30 will be made of one or more materials supporting the high temperatures of the exhaust gases.
  • the tubular element 30 is in permanent contact with the fluid which circulates in the envelope 24, and its peripheral rim 32, on which the end of the envelope 24 is fixed, is maintained at a relatively low temperature not risking deteriorate the material of which the envelope 24 is made, while the collector 18 is itself brought to a much higher temperature.
  • the lubricating oil circulating in the tubes 40 is heated by the fluid circulating in the casing 24, which is itself heated by the exhaust gas.
  • FIG. 3 shows, in more detail, a method of assembling the fluid box 10 and the casing 24 on the manifold 18.
  • the fluid box 10 comprises a peripheral flange 44 applied, by means of a seal 46, to a corresponding peripheral flange 48 of the manifold 18. Screws 50 passing through aligned holes of the flanges 44 and 48 and of the seal 46 allowing, with nuts 52, to secure the fixing of these flanges.
  • peripheral rim 32 of the tubular element 30 (which is formed in one piece with the manifold 18) is fixed to the peripheral rim 34 of the end of the casing 24 in the same way, by means of screws 54 passing in aligned holes of the flanges 32 and 34 and of the seal 38 and receiving nuts 56.
  • tubular element 30 be formed in one piece with the collector 18.
  • the latter could therefore have a usual constitution, while the tubular element 30 would then include a peripheral rim at its end upper, by which it would be assembled to the peripheral rim 44 of the fluid box 10 and to the periphery of the manifold 18, which could be a simple plate fixed to seal between the rim of the fluid box and the corresponding rim of the element tubular 30.
  • partitions 25 forming baffles 25 can be placed in the envelope 24 to improve the heat exchange between the exhaust gases and the fluid circulating in the envelope.
  • the fluid which circulates in the casing 24 is an intermediate heat exchange fluid with the engine coolant or with the passenger compartment heating air, which makes it possible to avoid any risk of pollution coolant or air through exhaust gases or lubricating oil.
  • FIG. 4 schematically represents an example of application of the exchanger of FIG. 2.
  • the pipes 26 and 28 of the casing 24 are connected to the coolant circuit 56 of an internal combustion engine 58.
  • the exhaust manifold 60 of this engine is connected by a valve 62, either to the inlet pipe 12 of the fluid box 10 of the exchanger, or to an exhaust duct 64 thereby short-circuiting the 'exchanger.
  • the outlet pipe 14 of the fluid box 10 is also connected to the exhaust duct 64.
  • the valve 62 can be controlled by a thermostat depending for example on the temperature of the engine coolant.
  • the two supply tubes 42 of the oil radiator, sealingly crossing the wall of the casing 24, are connected to the circuit 66 of the lubricating oil of the engine 58.
  • the valve 62 When the engine 58 has reached its normal operating temperature, the valve 62 is switched, and the exhaust manifold 60 is then connected directly to the exhaust duct 64 without passing through the tubes 22 of the bundle.
  • the coolant which circulates in the casing 24 makes it possible to cool the engine lubricating oil, which circulates in the tubes 40 of the oil radiator.
  • FIG. 5 represents an alternative embodiment of the exchanger of FIGS. 2 and 4.
  • the fixed partition 16 of the fluid box 10 is replaced by a movable partition 68 pivotally mounted about an axis 70 adjacent to the collector 18 or carried by the latter, to be movable by a temperature-sensitive member engine coolant (like the valve 62 in Figure 4) between a position shown in solid lines (where it separates the inlet 12 from the outlet 14 and where the exhaust gases entering the box 10 by the inlet 12 circulates in the tubes 22 to gain the outlet 14, and a position shown in dotted lines where the exhaust gases go directly from the inlet 12 to the outlet 14 of the fluid box 10, without circulating in the tubes 22 the inlet ends of which are isolated by the partition 68 of the inlet 12 of the box 10.
  • a temperature-sensitive member engine coolant like the valve 62 in Figure 4
  • the casing 24 comprises at its lower end two nozzles 72 for entering and leaving the second engine coolant or liquid, separated by an internal partition 74 extending from the bottom of the casing 24 to the vicinity of the 'upper end of this envelope.
  • a ra oil diator 76 is disposed in the casing 24, parallel to the tubes 20, and is connected to the oil circuit by two conduits 78 which pass through the bottom of the casing 24 in leaktightness.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Atmospheric Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP86400564A 1985-03-20 1986-03-17 Wärmetauscher für Kraftfahrzeug, insbesondere Abgaswärmetauscher Ceased EP0197823A1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR8504155 1985-03-20
FR8504155A FR2579314A1 (fr) 1985-03-20 1985-03-20 Echangeur de chaleur du type a gaz d'echappement, en particulier pour vehicule automobile
FR8504154A FR2579311A1 (fr) 1985-03-20 1985-03-20 Echangeur de chaleur pour vehicule automobile, en particulier du type a gaz d'echappement
FR8504154 1985-03-20

Publications (1)

Publication Number Publication Date
EP0197823A1 true EP0197823A1 (de) 1986-10-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP86400564A Ceased EP0197823A1 (de) 1985-03-20 1986-03-17 Wärmetauscher für Kraftfahrzeug, insbesondere Abgaswärmetauscher

Country Status (2)

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US (1) US4685430A (de)
EP (1) EP0197823A1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0622529A2 (de) * 1993-04-29 1994-11-02 Thomas Allan Wärmetauscher für Verbrennungsmotoren
WO1997011856A2 (de) * 1995-09-12 1997-04-03 Eberspaecher J Motorunabhängiges fahrzeugheizgerät
FR2846407A1 (fr) * 2002-10-28 2004-04-30 Valeo Thermique Moteur Sa Echangeur de chaleur a regulation de flux, en particulier pour vehicules automobiles
FR2846735A1 (fr) * 2002-10-30 2004-05-07 Valeo Thermique Moteur Sa Echangeur de chaleur a plusieurs fluides, notamment pour un vehicule automobile, et systeme de gestion de l'energie thermique associe.
FR2907889A1 (fr) * 2006-10-27 2008-05-02 Valeo Sys Controle Moteur Sas Vanne de regulation reliee a un echangeur par un pont thermique et dispositif d'echange thermique correspondant.
EP1857761A3 (de) * 2006-05-20 2011-12-28 Pierburg GmbH Wärmeübertragungseinheit für Verbrennungskraftmaschinen
CN115405408A (zh) * 2022-08-31 2022-11-29 东风柳州汽车有限公司 一种膨胀水箱组件、发动机冷却系统及汽车

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US6036827A (en) * 1997-06-27 2000-03-14 Lynntech, Inc. Electrolyzer
US5964089A (en) * 1997-06-27 1999-10-12 Lynntech, Inc Diagnostics and control of an on board hydrogen generation and delivery system
DE19809859A1 (de) * 1998-03-07 1999-09-09 Mann & Hummel Filter Vorrichtung zur Kühlung von Gasen
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EP2308708B1 (de) * 2009-09-16 2016-08-17 swissauto powersport llc Elektrofahrzeug mit Reichweitenverlängerung
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JP6346426B2 (ja) * 2013-08-12 2018-06-20 現代自動車株式会社Hyundai Motor Company Egrガス及びエンジンオイル冷却装置とその制御方法
KR101945823B1 (ko) * 2013-12-10 2019-02-11 한온시스템 주식회사 자동차의 통합 기능형 열교환 장치
KR101628129B1 (ko) * 2014-11-13 2016-06-08 현대자동차 주식회사 통합된 냉각 시스템 및 이를 제어하는 방법
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JP6606375B2 (ja) * 2015-02-09 2019-11-13 現代自動車株式会社 統合egrクーラー及びこれを含む統合egrクーリングシステム
US20170370329A1 (en) * 2015-09-25 2017-12-28 Hanon Systems Vehicular egr cooler
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AU2017284964B2 (en) 2016-06-14 2020-07-02 Polaris Industries, Inc. Hybrid utility vehicle
CN106150825B (zh) * 2016-06-28 2018-02-23 浙江吉利罗佑发动机有限公司 一种车辆发动机冷启动加热系统
CN107218101A (zh) * 2017-08-02 2017-09-29 芜湖精达机械制造有限公司 一种机油冷却器
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EP0622529A2 (de) * 1993-04-29 1994-11-02 Thomas Allan Wärmetauscher für Verbrennungsmotoren
EP0622529A3 (de) * 1993-04-29 1995-07-12 Thomas Allan Wärmetauscher für Verbrennungsmotoren.
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FR2846407A1 (fr) * 2002-10-28 2004-04-30 Valeo Thermique Moteur Sa Echangeur de chaleur a regulation de flux, en particulier pour vehicules automobiles
FR2846735A1 (fr) * 2002-10-30 2004-05-07 Valeo Thermique Moteur Sa Echangeur de chaleur a plusieurs fluides, notamment pour un vehicule automobile, et systeme de gestion de l'energie thermique associe.
WO2004042310A1 (fr) * 2002-10-30 2004-05-21 Valeo Thermique Moteur Echangeur de chaleur a plusieurs fluides, notamment pour un vehicule automobile, et systeme de gestion de l’energie thermique associe
EP1857761A3 (de) * 2006-05-20 2011-12-28 Pierburg GmbH Wärmeübertragungseinheit für Verbrennungskraftmaschinen
FR2907889A1 (fr) * 2006-10-27 2008-05-02 Valeo Sys Controle Moteur Sas Vanne de regulation reliee a un echangeur par un pont thermique et dispositif d'echange thermique correspondant.
WO2008053093A1 (fr) * 2006-10-27 2008-05-08 Valeo Systemes De Controle Moteur Vanne de régulation reliée à un échangeur par un pont thermique et dispositif d'échange thermique correspondant
EP2171247A1 (de) * 2006-10-27 2010-04-07 Valeo Systèmes de Contrôle Moteur Mittels einer wärmebrücke mit einem wärmetauscher verbundenes regulatorventil und entsprechende wärmetauschervorrichtung
CN115405408A (zh) * 2022-08-31 2022-11-29 东风柳州汽车有限公司 一种膨胀水箱组件、发动机冷却系统及汽车

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