EP0714009A1 - Verfahren zum Kühlen und Wärmetauscher mit zwei Kreisläufen - Google Patents

Verfahren zum Kühlen und Wärmetauscher mit zwei Kreisläufen Download PDF

Info

Publication number
EP0714009A1
EP0714009A1 EP95117972A EP95117972A EP0714009A1 EP 0714009 A1 EP0714009 A1 EP 0714009A1 EP 95117972 A EP95117972 A EP 95117972A EP 95117972 A EP95117972 A EP 95117972A EP 0714009 A1 EP0714009 A1 EP 0714009A1
Authority
EP
European Patent Office
Prior art keywords
circuit
compartment
compartments
tubes
fluid
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
EP95117972A
Other languages
English (en)
French (fr)
Inventor
Philippe Le Gauyer
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 Thermique Moteur SA
Original Assignee
Valeo Thermique Moteur SA
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 Valeo Thermique Moteur SA filed Critical Valeo Thermique Moteur SA
Publication of EP0714009A1 publication Critical patent/EP0714009A1/de
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • F28F9/02—Header boxes; End plates
    • F28F9/0202—Header boxes having their inner space divided by partitions
    • F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
    • F28F9/0209—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions
    • F28F9/0212—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions the partitions being separate elements attached to header boxes
    • 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
    • F28D1/0443—Combination of units extending one beside or one above the other
    • 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
    • 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
    • F28F9/02—Header boxes; End plates
    • F28F2009/0285—Other particular headers or end plates
    • F28F2009/0287—Other particular headers or end plates having passages for different heat exchange media

Definitions

  • the invention relates to cooling circuits with heat exchangers, in particular for motor vehicles.
  • a cooling circuit suitable for circulating a heat transfer fluid, generally water with antifreeze, through the engine block to draw energy there. calorific and return it to the outside environment by heat exchange with air in a heat exchanger, commonly called cooling radiator.
  • this heat transfer fluid in one or more secondary cooling circuits, in particular for cooling the lubricating oil of the engine or also for cooling the charge air coming from a turbo-compressor.
  • FR-A-2 634 546 proposes to use the same radiator for cooling the heat transfer fluid.
  • This document describes in particular a method of cooling, in particular the heat engine of a motor vehicle, using at least a first circuit and a second circuit of heat transfer fluid which have in common a multiple heat exchanger comprising a bundle of circulation tubes of heat transfer fluid comprising at least one row of substantially parallel tubes, each tube passing through a perforated wall or manifold of at least one fluid box, the latter being divided by partitions, at least in the vicinity of the manifold, into several compartments each of which communicates with a subset of the tubes of the row, a first of said compartments belonging to the first circuit and at least two other compartments, among which a second compartment adjacent to the first, belonging to the second circuit in which they are arranged in series by means of circulation tubes, process comprising phases during which the heat transfer fluid circulates simultaneously in the first and second circuits and other phases at during which the heat transfer fluid circulates in the second circuit and
  • the first circuit can be used in particular for cooling the heat engine, and the second circuit for cooling the charge air, the heat transfer fluid of this second circuit circulating in several passes in the heat exchanger to be brought to a higher temperature. lower than that of the first circuit.
  • FIG. 1 schematically shows a cooling radiator according to the teaching of FR-A-2 634 546.
  • This radiator comprises two fluid boxes 1 and 2 and a bundle of tubes 3.
  • the fluid box 1 is divided by partitions transverse into three successive compartments 4, 5 and 6, two inlet pipes 7 and 8 opening respectively into compartments 4 and 5.
  • the fluid box 2 is similarly divided into three successive compartments 9, 10 and 11, two outlet pipes 12 and 13 opening respectively into compartments 9 and 11.
  • Such a heat exchanger can be mounted in two cooling circuits, namely a cooling circuit of the engine of a motor vehicle in which the coolant enters the compartment 4 through the tubing 7, then passes into the compartment 9 via the tubes and out through the tubing 12, and a charge air cooling circuit in which the heat transfer fluid enters the compartment 5 through the tubing 8, passes successively into the compartments 10, 6 and 11 via the tubes and exits through the tubing 13.
  • the tubes connecting the compartments 4 and 9, in which the fluid does not circulate are at room temperature (for example 20 ° C), while those connecting the compartments 5 and 10 are approximately at the temperature of the fluid at its entry into the exchanger (for example 90 ° C), i.e. a temperature difference of 70 ° C between the two sub-assemblies.
  • the tubes are generally rigidly connected to the fluid boxes, for example by brazing to the manifolds, the difference in expansion resulting from this temperature difference between two neighboring sub-assemblies results in excessive mechanical stresses.
  • the object of the invention is to remedy this drawback.
  • the invention relates in particular to a method as defined above, and provides that at least one of said compartments belonging to the second circuit is located there upstream of said second compartment.
  • the subject of the invention is also a multiple heat exchanger suitable for implementing the method as defined above, comprising a bundle of tubes for circulation of heat-transfer fluid comprising at least one row of substantially parallel tubes, each tube passing through a perforated wall or collector of at least one fluid box, the latter being divided by partitions, at least in the vicinity of the collector, into several compartments each of which communicates with a subset of the tubes of the row, a first of said compartments belonging to a first heat transfer fluid circuit and at least one second compartment, adjacent to the first, and a third compartment belonging to a second heat transfer fluid circuit in which they are arranged in series by means of circulation tubes and where appropriate of intermediate compartments and / or of another fluid box, characterized in that the first and third fifth compartments are interconnected by an internal channel of the fluid box to be supplied by the same fluid inlet pipe, said channel being limited by a wall adjacent to the second compartment and where appropriate to said intermediate compartments.
  • one of said outer walls advantageously has, in the extension of the channel, a demolding opening which can be closed. by a plug.
  • FIG. 2 the same reference numbers are used as in FIG. 1 to designate identical or analogous elements.
  • the portion of the heat exchanger used by the cooling circuit of the heat engine, comprising the inlet pipe 7 and the compartment 4 of the fluid box 1, a first subset of the tubes 3, the compartment 9 and the outlet manifold 12 of the fluid box 2, is unchanged with respect to FIG. 1.
  • the portion used by the charge air cooling circuit, the internal configuration of which is the same as in FIG. 1, is oriented differently.
  • the compartment 6 is located between the compartments 4 and 5, and the compartment 11 between the compartments 9 and 10.
  • the circulation tubes of the second circuit closest to the circulation tubes of the first circuit are those connecting the compartments 6 and 11.
  • the fluid circulating in these tubes is for example at a temperature of 45 ° C, reducing the difference to 25 ° C temperature with the tubes of the first sub-assembly when there is no fluid circulating therein, thus considerably limiting the stresses produced by differential expansion.
  • the fluid circulating between compartments 4 and 9 is at 90 ° C and that circulating between compartments 6 and 11 is at 45 °, i.e. a temperature difference 45 ° C
  • the fluid flowing in the two subsets of neighboring tubes, between compartments 4 and 9 and between compartments 5 and 10 was at the same temperature of 90 ° C .
  • the arrangement according to the invention therefore creates in this case a differential expansion which did not exist in the state of the art.
  • the important result is that the maximum temperature difference across all operating phases, between neighboring tubes belonging to the two circuits is significantly lower (45 ° C) in the configuration according to the invention than in the known configuration (70 ° C).
  • the fluid box 2 and the tube bundle 3 of FIG. 3 are identical to the corresponding elements of FIG. 2.
  • the fluid box 1 of FIG. 3 differs from that of FIG. 2 in that the compartments 4 and 5, which are separated from one another by the compartment 6 in contact with the perforated plate or collector 14 traversed by the tubes 3, are connected together by a channel 15 remote from the manifold, this channel being separated from the compartment 6 by a wall 16 extending in the longitudinal direction of the fluid box.
  • the channel 15 makes it possible to supply the compartments 4 and 5 from the same inlet pipe 7, the pipe 8 being removed, which simplifies the entire cooling circuit.
  • the fluid box 1 is formed by assembling the manifold 14 and a molded plastic part defining the outer walls, the tubing 7, the partitions between the compartments and the wall 16.
  • a core is present in the channel 15.
  • this core is extracted by a movement in the longitudinal direction of the fluid box, leaving an opening 17 in an end wall 18 of the fluid box. This opening must then be closed by means of a plug 19, for example by welding.
  • the inlet pipes of the two circuits are on the first fluid box and the outlet pipes of the two circuits are on the second fluid box.
  • the two inlet pipes, and / or the two outlet pipes can be placed on the two fluid boxes respectively.
  • the inlet and outlet pipes of the same circuit can be on the same fluid box.
  • the second fluid box can be eliminated entirely or partially, the corresponding rectilinear tubes being replaced two by two, in known manner, by U-shaped or hairpin tubes.
  • the heat exchanger according to the invention can be used, in addition to the first and second circuits, for other circuits.
EP95117972A 1994-11-23 1995-11-15 Verfahren zum Kühlen und Wärmetauscher mit zwei Kreisläufen Ceased EP0714009A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9414040 1994-11-23
FR9414040A FR2727197B1 (fr) 1994-11-23 1994-11-23 Procede de refroidissement et echangeur de chaleur a deux circuits

Publications (1)

Publication Number Publication Date
EP0714009A1 true EP0714009A1 (de) 1996-05-29

Family

ID=9469076

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95117972A Ceased EP0714009A1 (de) 1994-11-23 1995-11-15 Verfahren zum Kühlen und Wärmetauscher mit zwei Kreisläufen

Country Status (3)

Country Link
EP (1) EP0714009A1 (de)
BR (1) BR9505260A (de)
FR (1) FR2727197B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2753782A1 (fr) * 1996-09-23 1998-03-27 Valeo Thermique Moteur Sa Condenseur a reservoir integre pour un circuit de refrigeration, notamment de vehicule automobile
DE10158436A1 (de) * 2001-11-29 2003-06-12 Behr Gmbh & Co Wärmetauscher
US20090084364A1 (en) * 2005-05-31 2009-04-02 Carlos Martins Intake Air Cooler For Dual-State Turbocharging Turbocompressed Heat Engine And Corresponding Air Circuit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB667167A (en) * 1948-02-05 1952-02-27 Commentry Fourchambault Et Dec Improvements in heat exchangers
EP0352158A1 (de) * 1988-07-20 1990-01-24 Valeo Thermique Moteur Wärmeaustauschvorrichtung für mehrere Kühlkreisläufe, das gleiche Wärmeaustauschmedium nutzend
US5203407A (en) * 1990-11-07 1993-04-20 Zexel Corporation Vehicle-loaded parallel flow type heat exchanger
US5228315A (en) * 1990-12-28 1993-07-20 Zexel Corporation Condenser having a receiver tank formed integrally therewith

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB667167A (en) * 1948-02-05 1952-02-27 Commentry Fourchambault Et Dec Improvements in heat exchangers
EP0352158A1 (de) * 1988-07-20 1990-01-24 Valeo Thermique Moteur Wärmeaustauschvorrichtung für mehrere Kühlkreisläufe, das gleiche Wärmeaustauschmedium nutzend
FR2634546A1 (fr) 1988-07-20 1990-01-26 Valeo Dispositif d'echangeur de chaleur pour plusieurs circuits de refroidissement utilisant un meme fluide caloporteur
US5203407A (en) * 1990-11-07 1993-04-20 Zexel Corporation Vehicle-loaded parallel flow type heat exchanger
US5228315A (en) * 1990-12-28 1993-07-20 Zexel Corporation Condenser having a receiver tank formed integrally therewith

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2753782A1 (fr) * 1996-09-23 1998-03-27 Valeo Thermique Moteur Sa Condenseur a reservoir integre pour un circuit de refrigeration, notamment de vehicule automobile
DE10158436A1 (de) * 2001-11-29 2003-06-12 Behr Gmbh & Co Wärmetauscher
US20090084364A1 (en) * 2005-05-31 2009-04-02 Carlos Martins Intake Air Cooler For Dual-State Turbocharging Turbocompressed Heat Engine And Corresponding Air Circuit
US8186159B2 (en) * 2005-05-31 2012-05-29 Valeo Systemes Thermiques Intake air cooler for dual-state turbocharging turbocompressed heat engine and corresponding air circuit

Also Published As

Publication number Publication date
BR9505260A (pt) 1997-09-16
FR2727197A1 (fr) 1996-05-24
FR2727197B1 (fr) 1997-01-10

Similar Documents

Publication Publication Date Title
EP0352158B1 (de) Wärmeaustauschvorrichtung für mehrere Kühlkreisläufe, das gleiche Wärmeaustauschmedium nutzend
FR2941522A1 (fr) Echangeur de chaleur pour deux fluides, en particulier evaporateur de stockage pour dispositif de climatisation
EP2972049B1 (de) Wärmetauscher, insbesondere supraladender luftkühler
EP0197823A1 (de) Wärmetauscher für Kraftfahrzeug, insbesondere Abgaswärmetauscher
FR2786259A1 (fr) Echangeur de chaleur combine, en particulier pour vehicule automobile
WO2008071511A1 (fr) Echangeur de chaleur comprenant au moins trois parties d'echanges de chaleur et systeme de gestion de l'energie thermique comportant un tel echangeur
FR2917819A1 (fr) Module d'echange de chaleur pour deux circuits d'echange de chaleur
FR2711236A1 (fr) Echangeur de chaleur à deux rangées de tubes, en particulier pour véhicule automobile.
FR2972500A1 (fr) Boitier d'admission comprenant un echangeur thermique
FR2846735A1 (fr) Echangeur de chaleur a plusieurs fluides, notamment pour un vehicule automobile, et systeme de gestion de l'energie thermique associe.
WO2007031637A1 (fr) Module d'échange de chaleur pour la régulation de la température des gaz admis dans un moteur thermigue de véhicule à bancs de cylindres en v
FR2844224A1 (fr) Systeme de refroidissement d'une chaine de traction hybride pour vehicule automobile.
EP0714009A1 (de) Verfahren zum Kühlen und Wärmetauscher mit zwei Kreisläufen
FR2915792A1 (fr) Echangeur de chaleur extrude
FR2774462A1 (fr) Echangeur refroidisseur de fluide
FR2580332A1 (fr) Radiateurs d'air de suralimentation pour moteurs a combustion interne
FR2929561A1 (fr) Dispositif de refroidissement pour vehicules automobiles
EP3973239A1 (de) Wärmetauscher für kühlmittel-/wärmeübertragungsflüssigkeit
EP0984237A1 (de) Mehrere Kreisläufe aufweisender Wärmetauscher, insbesondere für Kraftfahrzeuge
EP1865185A1 (de) Vorrichtung zur Leitung von Verbrennungsluft zu einer Brennkraftmaschine und ein damit ausgestattetes Fahrzeug
FR2552216A1 (fr) Perfectionnements apportes aux tubes echangeurs de chaleur et aux echangeurs realises avec de tels tubes
EP1579161A2 (de) Modulwärmetauscher, insbesondere für kraftfahrzeug
EP4198290A1 (de) Zylinderkopf einer brennkraftmaschine
WO2009021823A1 (fr) Echangeur de chaleur pour gaz, en particulier pour les gaz d'echappement d'un moteur
EP3430339B1 (de) Wärmetauscher, insbesondere für ein fahrzeug, speziell ein kraftfahrzeug

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES GB IT SE

17P Request for examination filed

Effective date: 19961028

17Q First examination report despatched

Effective date: 19980209

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19990712