EP2157388B1 - Echangeur thermique pour un véhicule automobile - Google Patents

Echangeur thermique pour un véhicule automobile Download PDF

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Publication number
EP2157388B1
EP2157388B1 EP09165657.9A EP09165657A EP2157388B1 EP 2157388 B1 EP2157388 B1 EP 2157388B1 EP 09165657 A EP09165657 A EP 09165657A EP 2157388 B1 EP2157388 B1 EP 2157388B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
primary
collector
area
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.)
Not-in-force
Application number
EP09165657.9A
Other languages
German (de)
English (en)
Other versions
EP2157388A2 (fr
EP2157388A3 (fr
Inventor
Thomas Bensel
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.)
Mahle Behr GmbH and Co KG
Original Assignee
Mahle Behr GmbH and Co KG
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 Mahle Behr GmbH and Co KG filed Critical Mahle Behr GmbH and Co KG
Publication of EP2157388A2 publication Critical patent/EP2157388A2/fr
Publication of EP2157388A3 publication Critical patent/EP2157388A3/fr
Application granted granted Critical
Publication of EP2157388B1 publication Critical patent/EP2157388B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/028—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using inserts for modifying the pattern of flow inside the header box, e.g. by using flow restrictors or permeable bodies or blocks with channels
    • 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
    • F28D1/0417—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with particular circuits for the same heat exchange medium, e.g. with the heat exchange medium flowing through sections having different heat exchange capacities or for heating/cooling the heat exchange medium at different temperatures

Definitions

  • the invention relates to a heat exchanger for a motor vehicle according to the preamble of claim 1.
  • a heat exchanger is known from DE 100 39 386 A1 known.
  • DE 195 36 116 A1 describes a coolant radiator for a motor vehicle, on the integrated construction of a further oil cooler for cooling an oil circuit of a power steering or an internal combustion engine is formed.
  • Several sections for forming the separate circuits are formed on opposite collectors, wherein in a portion of the oil circuit, a partition wall is provided with a bypass bore to limit a pressure drop across the oil cooler.
  • the heat exchanger has a first outlet for a first cooling branch of the fluid, and a second outlet for a second cooling branch of the fluid, wherein the second outlet is arranged on the second area.
  • a heat exchanger is formed, in which the same inflowing fluid is branched to different temperatures tempered.
  • the second area is connected to the second outlet, the second area being part of a low-temperature cooling section integrated into the heat exchanger.
  • the heat exchanger has a second header, wherein the first drain is formed on the second header.
  • the low-temperature cooling section is flowed through to achieve a particularly good cooling U-shaped.
  • the first fluid flow leads to an internal combustion engine of the motor vehicle.
  • the second fluid stream expediently leads to a further heat exchanger of the motor vehicle, in particular from the group exhaust gas cooler, intercooler or oil cooler.
  • the heat exchanger is designed so that a flow-through cross-sectional area of the collector is reduced by the throttle member, in particular by a factor between about 5 and about 200.
  • a ratio of a number of exchanger tubes of the first region to a number of exchanger tubes of the third region is between about 4 and about 20, in particular between about 5 and about 12.
  • the throttle member is designed as a partition used in the collector with at least one opening or recess. It can be, for example, a hole to act of a defined diameter. Alternatively, a plurality of openings, for example in the manner of a perforated plate or a flow grid, may be provided.
  • the heat exchanger is designed in the interest of a simple series production as a whole aluminum heat exchanger.
  • the heat exchanger according to the invention may be designed as a completely aluminum coolant radiator for a motor vehicle.
  • the collectors including bottom and box parts are made of aluminum and, if possible in a single step with the exchanger tubes, ribs and other components are soldered in a brazing furnace.
  • the heat exchanger has a first header 1 and a second header 2, between which extends a stack of evenly spaced exchanger tubes 3, which are formed as aluminum flat tubes. Between adjacent flat tubes 3 is in each case a ribbed layer 4, through which the heat transfer to the network of pipes and fins flowing air is improved.
  • the heat exchanger is flowed through by a liquid fluid in the form of a coolant of an engine cooling circuit of the motor vehicle.
  • the heat exchanger is subdivided into a first region A and a second region B via a fluid-tight dividing wall 5 arranged in the first collector.
  • a throttle member 6 divides a third region C which lies between the first region A and the second region B in the first collector 1.
  • the throttle member 6 is not formed as a fluid-tight barrier, but as a sheet metal part with a defined dimensioned opening 7 in the form of a circular bore.
  • the collector 1 in the vicinity of the throttle member 6 has an inner cross-section of about 3 cm X 3.5 cm, the bore 7 has a diameter of about 0.6 cm.
  • the geometric flow cross-section in the longitudinal direction of the collector in the region of the throttle member 6 is reduced approximately by a factor of 40.
  • a single inlet 8 is provided for the coolant.
  • a first outlet 9 is formed over its entire length of continuous second collector 2, which is arranged on the first collector opposite end of the flat tubes.
  • a second drain 10 is arranged on the second region of the first collector 1.
  • a coolant radiator is provided in which a first cooling branch of the coolant entering through the inlet 8 leaves the first outlet 9, after the exchanger tubes starting from the areas A and C once flowed through in the longitudinal direction.
  • This cooling branch is led as a return to the vehicle engine to cool it.
  • a second cooling branch or partial flow of the coolant additionally passes in the second region B arranged exchanger tubes in the opposite direction, starting from the second collector 2 to the first collector 1, where the second cooling branch leaves the collector area B through the second drain 10.
  • This cooling branch which flows through the coolant radiator overall U-shaped, serves as a flow for a further heat exchanger of the motor vehicle, for example, an indirect or liquid-cooled exhaust gas cooler, intercooler or oil cooler.
  • the second cooling branch is designed as a low-temperature branch.
  • inlet temperatures of 120 ° C inlet temperatures of 120 ° C, the outlet temperatures of the coolant at the first outlet 9 are typically about 80 ° C and at the second outlet 10 of the low-temperature cooling section at typically 60 ° C.
  • the volume flows per exchanger tube of the individual areas A, B, C are indicated by differently thick directional arrows. This makes it clear that the flow in the first region A and in the third region C is rectified with respect to the exchanger tubes.
  • the flow in each case leads from the regions A, C into the exchanger tubes, wherein in a modified embodiment, a respective reverse flow direction can also be present.
  • the extent of the third region C in the longitudinal direction of the collector 1 is considerably smaller than that of the first region A.
  • the ratio of the number of exchanger tubes arranged on the first region A to that of the exchanger tubes arranged on the third region C is about 8.

Landscapes

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

Claims (7)

  1. Echangeur de chaleur pour un véhicule automobile, comprenant
    ∘ un premier collecteur (1) ayant au moins une entrée (8) pour un premier et un second circuit de refroidissement d'un fluide,
    ∘ un second collecteur (2) ayant une première sortie (9) pour le premier circuit de refroidissement du fluide, et
    ∘ une pluralité de tubes d'échangeur (3) disposés sur le collecteur (1),
    où le premier collecteur (1) est subdivisé, en étant étanche au fluide, en une première zone (A) et en une deuxième zone (B), où les tubes d'échangeur (3) relient fluidiquement la première et la deuxième zone (A, B), au second collecteur (2), où l'entrée (8) est disposée dans la première zone (A), où l'échangeur de chaleur comprend une seconde sortie (10) pour le second circuit de refroidissement du fluide, second circuit qui est conçu comme un circuit basse température, où la seconde sortie (10) est disposée sur la deuxième zone (B),
    caractérisé en qu'il est prévu, dans le premier collecteur (1), un élément d'étranglement (6) au moyen duquel une troisième zone (C), disposée entre la première et la deuxième zone (A, B), est configurée dans le premier collecteur (1), grâce à quoi un écoulement de fluide est étranglé de façon définie entre la première zone (A) et la troisième zone (C), où des tubes d'échangeur (3) relient fluidiquement la troisième zone (C), au second collecteur (2), où le fluide s'écoule, dans la même direction, dans les tubes d'échangeur (3) reliés à la première zone (A) et dans ceux reliés à la troisième zone (C).
  2. Echangeur de chaleur selon la revendication 1, caractérisé en ce que le premier flux de fluide circule jusqu'à un moteur à combustion interne du véhicule automobile.
  3. Echangeur de chaleur selon l'une des revendications 1 ou 2, caractérisé en ce que le second flux de fluide (B) circule jusqu'à un autre échangeur de chaleur du véhicule automobile, en particulier à partir du groupe se composant du refroidisseur de gaz d'échappement, du refroidisseur d'air de suralimentation ou du refroidisseur d'huile.
  4. Echangeur de chaleur selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une surface de section du collecteur, qui peut être traversée, est réduite par l'élément d'étranglement (6), en particulier d'un facteur compris entre 5 environ et 200 environ.
  5. Echangeur de chaleur selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un rapport d'un nombre de tubes d'échangeur de la première zone (A), relativement à un nombre de tubes d'échangeur de la troisième zone (C), est compris entre 4 environ et 20 environ, en particulier entre 5 environ et 12 environ.
  6. Echangeur de chaleur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément d'étranglement (6) est conçu comme une paroi de séparation introduite dans le collecteur (1) et comportant au moins une ouverture (7).
  7. Echangeur de chaleur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'échangeur de chaleur est conçu comme un échangeur de chaleur tout en aluminium.
EP09165657.9A 2008-08-20 2009-07-16 Echangeur thermique pour un véhicule automobile Not-in-force EP2157388B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008038498A DE102008038498A1 (de) 2008-08-20 2008-08-20 Wärmetauscher für ein Kraftfahrzeug

Publications (3)

Publication Number Publication Date
EP2157388A2 EP2157388A2 (fr) 2010-02-24
EP2157388A3 EP2157388A3 (fr) 2013-10-16
EP2157388B1 true EP2157388B1 (fr) 2016-05-18

Family

ID=41395487

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09165657.9A Not-in-force EP2157388B1 (fr) 2008-08-20 2009-07-16 Echangeur thermique pour un véhicule automobile

Country Status (2)

Country Link
EP (1) EP2157388B1 (fr)
DE (1) DE102008038498A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016213801A1 (de) 2016-07-27 2018-02-01 Mahle International Gmbh Wärmeübertrager

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007027354A1 (fr) * 2005-08-31 2007-03-08 Valeo, Inc. Échangeur thermique
FR2912209A1 (fr) * 2007-02-06 2008-08-08 Valeo Systemes Thermiques Echangeur multi circuits

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR940010978B1 (ko) * 1988-08-12 1994-11-21 갈소니꾸 가부시끼가이샤 멀티플로우형의 열교환기
JP2980631B2 (ja) * 1990-02-23 1999-11-22 カルソニック株式会社 積層型熱交換器
DE19536116B4 (de) 1995-09-28 2005-08-11 Behr Gmbh & Co. Kg Wärmeübertrager für ein Kraftfahrzeug
DE19626639C1 (de) * 1996-07-02 1997-11-20 Laengerer & Reich Gmbh & Co Wärmetauscher, insbesondere Wasserkühler
US6449979B1 (en) * 1999-07-02 2002-09-17 Denso Corporation Refrigerant evaporator with refrigerant distribution
JP4078766B2 (ja) * 1999-08-20 2008-04-23 株式会社デンソー 熱交換器
JP2001241806A (ja) * 2000-02-28 2001-09-07 Sanden Corp 耐圧部品及び耐圧部品を用いた熱交換器並びに耐圧部品を用いた冷凍装置
US20020007646A1 (en) * 2000-06-20 2002-01-24 Showa Denko K.K. Condenser
WO2006070923A1 (fr) * 2004-12-28 2006-07-06 Showa Denko K.K. Echangeur de chaleur
DE102005012082A1 (de) * 2005-03-16 2006-09-21 Modine Manufacturing Co., Racine Wärmetauscher, insbesondere Kühlflüssigkeitskühler
DE102005059917A1 (de) * 2005-04-15 2006-11-02 Behr Gmbh & Co. Kg Verdampfer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007027354A1 (fr) * 2005-08-31 2007-03-08 Valeo, Inc. Échangeur thermique
FR2912209A1 (fr) * 2007-02-06 2008-08-08 Valeo Systemes Thermiques Echangeur multi circuits

Also Published As

Publication number Publication date
DE102008038498A1 (de) 2010-02-25
EP2157388A2 (fr) 2010-02-24
EP2157388A3 (fr) 2013-10-16

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