EP2031336A3 - Heat exchanger unit for a combustion engine - Google Patents

Heat exchanger unit for a combustion engine Download PDF

Info

Publication number
EP2031336A3
EP2031336A3 EP08104442A EP08104442A EP2031336A3 EP 2031336 A3 EP2031336 A3 EP 2031336A3 EP 08104442 A EP08104442 A EP 08104442A EP 08104442 A EP08104442 A EP 08104442A EP 2031336 A3 EP2031336 A3 EP 2031336A3
Authority
EP
European Patent Office
Prior art keywords
ribs
heat exchanger
combustion engine
exchanger unit
heat transfer
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.)
Granted
Application number
EP08104442A
Other languages
German (de)
French (fr)
Other versions
EP2031336A2 (en
EP2031336B1 (en
Inventor
Hans-Jürgen Hüsges
Hans-Ulrich Kühnel
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.)
Pierburg GmbH
Original Assignee
Pierburg GmbH
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 Pierburg GmbH filed Critical Pierburg GmbH
Publication of EP2031336A2 publication Critical patent/EP2031336A2/en
Publication of EP2031336A3 publication Critical patent/EP2031336A3/en
Application granted granted Critical
Publication of EP2031336B1 publication Critical patent/EP2031336B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/048—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of ribs integral with the element or local variations in thickness of the element, e.g. grooves, microchannels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
    • F02M26/32—Liquid-cooled 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10—Heat-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 being arranged one within the other, e.g. concentrically
    • F28D7/106—Heat-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 being arranged one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
    • 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
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/08—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/14—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by endowing the walls of conduits with zones of different degrees of conduction of heat
    • 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
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • General Details Of Gearings (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

Es sind Wärmeübertragungseinheiten bekannt, bei denen sich zur Kühlleistungsverbesserung Rippen (14) über die gesamte Kühlerlauflänge erstrecken.Heat transfer units are known in which ribs (14) extend over the entire radiator running length for cooling performance improvement.

Erfindungsgemäß wird nun vorgeschlagen, bei gleich bleibendem Bauraum mehr Kühlfläche in einem ersten Abschnitt (9) bereitzustellen, in dem der Temperaturgradient höher ist, in dem dort viele Rippen (14) angeordnet werden und auf derartige Rippen in einem Bereich geringerer Temperaturgradienten, also in einem zweiten Abschnitt (12) zu verzichten oder deren Anzahl zu verringern.According to the invention, it is now proposed to provide more cooling area in a first section (9) with constant space, in which the temperature gradient is higher, in which there are many ribs (14) are arranged and such ribs in a range of lower temperature gradients, ie in a second section (12) or to reduce their number.

Hierdurch wird insgesamt der Wirkungsgrad einer derartigen Wärmeübertragungseinheit verbessert.

Figure imgaf001
As a result, the overall efficiency of such a heat transfer unit is improved.
Figure imgaf001
EP08104442A 2007-08-31 2008-06-17 Heat exchanger unit for a combustion engine Not-in-force EP2031336B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007041338A DE102007041338B3 (en) 2007-08-31 2007-08-31 Heat transfer unit for an internal combustion engine

Publications (3)

Publication Number Publication Date
EP2031336A2 EP2031336A2 (en) 2009-03-04
EP2031336A3 true EP2031336A3 (en) 2011-05-18
EP2031336B1 EP2031336B1 (en) 2012-12-05

Family

ID=39942384

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08104442A Not-in-force EP2031336B1 (en) 2007-08-31 2008-06-17 Heat exchanger unit for a combustion engine

Country Status (3)

Country Link
US (1) US8245767B2 (en)
EP (1) EP2031336B1 (en)
DE (1) DE102007041338B3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090114373A1 (en) * 2007-11-02 2009-05-07 Calsonic Kansei Corporation Heat exchanger
DE102008049253B4 (en) * 2008-09-26 2012-12-20 Pierburg Gmbh Automotive exhaust gas cooler
DE102008051268A1 (en) * 2008-10-10 2010-04-15 Mahle International Gmbh cooling device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001027157A (en) * 1999-07-13 2001-01-30 Mitsubishi Motors Corp Strut for egr cooler
DE10112257A1 (en) * 2000-03-16 2001-10-31 Denso Corp Exhaust gas heat exchanger
DE202006009464U1 (en) * 2005-09-23 2006-09-14 Pierburg Gmbh Heat exchanger recovering waste heat from exhaust or flue gases, separates flows using wall covered with fins having sharp leading edges and blunt trailing edges
DE102005029321A1 (en) * 2005-06-24 2006-12-28 Behr Gmbh & Co. Kg Heat exchanger for exhaust gas cooling has structural elements arranged so that duct has internal variable heat transfer increasing in direction of flow
EP1870655A2 (en) * 2006-06-24 2007-12-26 Pierburg GmbH Heat exchanger unit for a combustion engine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5099913A (en) * 1990-02-05 1992-03-31 General Motors Corporation Tubular plate pass for heat exchanger with high volume gas expansion side
KR100353020B1 (en) * 1993-12-28 2003-01-10 쇼와 덴코 가부시키가이샤 Multilayer Heat Exchanger
JP3719453B2 (en) * 1995-12-20 2005-11-24 株式会社デンソー Refrigerant evaporator
EP0840081B1 (en) * 1996-10-29 2003-04-16 Denso Corporation Heat exchanger and method for manufacturing the same
JP3361475B2 (en) * 1998-05-18 2003-01-07 松下電器産業株式会社 Heat exchanger
US6318455B1 (en) * 1999-07-14 2001-11-20 Mitsubishi Heavy Industries, Ltd. Heat exchanger
DE10010266A1 (en) 2000-03-02 2001-11-15 Behr Gmbh & Co Plate-type heat exchanger has corrugated fins arranged between neighboring plate pairs to form second flow channels that allow flow of second heat exchange medium in flow changing direction
EP1370818A4 (en) * 2001-02-19 2006-04-26 Showa Denko Kk Heat exchanger
DE102005058204B4 (en) * 2005-12-02 2008-07-24 Pierburg Gmbh Cooling device for an internal combustion engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001027157A (en) * 1999-07-13 2001-01-30 Mitsubishi Motors Corp Strut for egr cooler
DE10112257A1 (en) * 2000-03-16 2001-10-31 Denso Corp Exhaust gas heat exchanger
DE102005029321A1 (en) * 2005-06-24 2006-12-28 Behr Gmbh & Co. Kg Heat exchanger for exhaust gas cooling has structural elements arranged so that duct has internal variable heat transfer increasing in direction of flow
DE202006009464U1 (en) * 2005-09-23 2006-09-14 Pierburg Gmbh Heat exchanger recovering waste heat from exhaust or flue gases, separates flows using wall covered with fins having sharp leading edges and blunt trailing edges
EP1870655A2 (en) * 2006-06-24 2007-12-26 Pierburg GmbH Heat exchanger unit for a combustion engine

Also Published As

Publication number Publication date
EP2031336A2 (en) 2009-03-04
EP2031336B1 (en) 2012-12-05
US8245767B2 (en) 2012-08-21
DE102007041338B3 (en) 2008-12-11
US20090056321A1 (en) 2009-03-05

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