EP2372286A2 - Echangeur thermique - Google Patents

Echangeur thermique Download PDF

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Publication number
EP2372286A2
EP2372286A2 EP11160576A EP11160576A EP2372286A2 EP 2372286 A2 EP2372286 A2 EP 2372286A2 EP 11160576 A EP11160576 A EP 11160576A EP 11160576 A EP11160576 A EP 11160576A EP 2372286 A2 EP2372286 A2 EP 2372286A2
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
exchanger according
tube
nubs
structuring
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Withdrawn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
EP11160576A
Other languages
German (de)
English (en)
Other versions
EP2372286A3 (fr
Inventor
Peter Geskes
Tobias Fetzer
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
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 Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP2372286A2 publication Critical patent/EP2372286A2/fr
Publication of EP2372286A3 publication Critical patent/EP2372286A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F28D1/053—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 the conduits being straight
    • F28D1/0535—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 the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05375—Assemblies of conduits connected to common headers, e.g. core type radiators with particular pattern of flow, e.g. change of flow direction
    • 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
    • F28D7/16—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 in parallel spaced relation
    • F28D7/1684—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 in parallel spaced relation the conduits having a non-circular cross-section
    • F28D7/1692—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 in parallel spaced relation the conduits having a non-circular cross-section with particular pattern of flow of the heat exchange media, e.g. change of flow direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/06—Tubular elements of cross-section which is non-circular crimped or corrugated in cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
    • 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
    • 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
    • F28F3/042—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 local deformations of the element
    • F28F3/044—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 local deformations of the element the deformations being pontual, e.g. dimples
    • 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
    • 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
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F2001/027—Tubular elements of cross-section which is non-circular with dimples

Definitions

  • the invention relates to a heat exchanger for a motor vehicle according to the preamble of patent claim 1.
  • Such heat exchangers are used in internal combustion engines, for example as a charge air cooler or exhaust gas cooler.
  • Various types are known in this area of application, for example tube bundle heat exchangers or plate heat exchangers.
  • heat exchangers which consist of several parallel stacked plates. Each of the plates has on two opposite edges in each case an inlet and a discharge opening for a heat exchange medium.
  • the plates form between each hollow chambers in which corrugated turbulence sheets (turbulence inserts) are provided to increase the heat transfer and which are flowed through by each one of the participating in the heat transfer media.
  • the turbulence inserts used are mainly required in the course of the manufacturing process and are not absolutely necessary for reasons of strength or thermodynamics. For example, it can during manufacture, it is necessary to clamp and position the tube-and-fin bundles, which is why the coolant channel required for the heat exchanger must be equipped with appropriate turbulence inserts (ribs, tubes or the like).
  • a disadvantage of the obstruction of such turbulence inserts is that it comes, for example, to an increased cost of materials, unnecessary masses to be heated during soldering and increased tooling costs. Furthermore, there is a risk that geometric errors or inaccuracies of many items transferred and thus it comes to an enlarged tolerance chain.
  • the invention has for its object to provide a heat exchanger in which can be dispensed with the use of turbulence inserts,
  • the heat exchanger which may include, for example, a plurality of housing parts, at least one bottom, a plurality of fluid-carrying ribs and a plurality of fluid-carrying tubes is characterized in that the fluidbowenden tubes are provided on at least one outer side with a knob-like raised structuring.
  • the knob-like raised structuring By providing the knob-like raised structuring, the use of turbulence inserts can be dispensed with, since the structuring replaces the essential functions of the turbulence inserts.
  • Another advantage is the fact that with constant or increased strength and performance, a reduction in the use of materials can be achieved. Also advantageous is the fact that by reducing the individual parts an improvement in terms of manufacturing tolerance chain can be achieved.
  • a fluid in the sense of the invention means any gaseous or liquid medium.
  • the term heat exchanger also means a complete module, for example an exhaust gas module and / or intercooler.
  • the fluid-carrying tube can be formed as a flat tube with two narrow sides and two broad sides, wherein the knob-like structuring can extend substantially completely over the two broad sides. In essence, complete means that much of the broadside is provided with a knob-like raised structure.
  • the tubes are thereby flowed around by a first medium and by a second medium, in the region of the knob-like structuring.
  • the first medium is gas and the second medium is a coolant.
  • one medium may be gaseous while the other medium is liquid.
  • the gaseous fluid may at least partially consist of exhaust gas or charge air of an internal combustion engine, in which case the gaseous fluid is conducted inside the tube.
  • knob-like structuring runs regularly and / or irregularly on the broad sides.
  • even and irregular areas may be joined together, particularly to aid in the selective distribution of the coolant to critical, heat-stressed areas.
  • the nub-like structuring may consist of a plurality of individual raised nubs, extending from the surface of the broad side upwards.
  • the nubs may have a circular cross-section.
  • nubs may have a substantially oval or elliptical cross-section.
  • the nubs can have a substantially planar extending top surface, relative to the surface of the broad side of the tube, so that even contact surfaces result.
  • a preferred embodiment provides that the planar tops of the studs of two mutually juxtaposed tubes can abut each other in the composite, the studs on the one hand absorb the clamping forces during the joining process and on the other in the compound alley-like open spaces or channels are created, which can form theissermttelkanal ,
  • the dimple height can be in the range of 0.2 mm to 1.5 mm, preferably 0.5 mm to 1 mm. These heights have proven to be particularly advantageous in the context of the present invention.
  • the tube width can be in the range of 30 mm to 100 mm, preferably 40 mm to 65 mm. These dimensions have proven to be particularly advantageous in the context of the present invention.
  • the tube height can be in the range of 3 mm to 12 mm, preferably 5 mm to 9 mm. These dimensions have also proven to be particularly advantageous in the context of the present invention.
  • the material thickness of the tube may be in the range of 0.2 mm to 1 mm, preferably 0.4 mm to 0.8 mm.
  • the tube may be made of sheet metal and formed as a longitudinally welded or as a folded nub tube. Furthermore, it can be provided to realize the knobs or the structuring by means of an internal high-pressure forming or via an inserted wedge tool, in which case an externally mounted die may be provided.
  • an externally mounted die may be provided.
  • Fig. 1 shows a perspective view of a heat exchanger 1, here exhaust gas cooler.
  • the heat exchanger comprises a plurality of housing parts 2, 3 and a bottom 4,
  • the heat exchanger 1 comprises six gas-carrying individual tubes R are combined to form a tube bundle RB, wherein the tube bundle RB is held between the housing parts 2, 3.
  • Each tube R is formed as a flat tube and each comprises two narrow sides 5, 6 and two broad sides 7, 8 (same components bear the same reference numerals). On the broad sides 7 and 8, each tube R is provided with a knob-like raised structuring 9.
  • Fig. 2 shows the heat exchanger 1 in a side enlarged sectional view. the section line AA.
  • the tubes R have in their interior gas-guiding ribs GS.
  • the six individual tubes R are in a composite against each other and thus form the tube bundle RB.
  • the individual tubes R open with one end face in the bottom 4 and with the other end face on the housing parts. 2
  • the tubes R are formed substantially identical in terms of structuring and their dimensions. In particular, the distribution of the individual nubs N on the respective broad side 7, 8 is the same.
  • Fig. 3 shows in plan view a single tube R in a single view.
  • the tube has a structured broad side 7, wherein the structuring 10 is formed by a plurality of individual nubs N.
  • the nubs N are raised and have a cross-sectionally substantially circular cross-section.
  • the nubs N are distributed regularly (in terms of number and orientation) on the broadside 7.
  • Fig. 4 shows two individual tubes R of the tube bundle RB in an enlarged side view.
  • the two individual tubes R are in conjunction with the knobs N together.
  • the nubs have straight planar planar contact surfaces K.
  • the nubs N are designed to that in each case two nubs N meeting each other absorb the clamping forces during the joining process and at the same time the lane-like cooling channels KK are formed.
  • Fig. 5 shows a further embodiment of a tube R 'for a heat exchanger.
  • the tube R ' is on both broad sides 7', 8 '(only 7' visible) with a knob-like raised structuring 9 'provided.
  • the nub-like structuring 9 ' is formed by a multiplicity of individual nubs N', which have a circular cross section, and by a multiplicity of individual nubs N ", which have a substantially oval cross section.
  • the nubs N ' are distributed regularly on the broad side 7, while the nubs N "run irregularly on the broad side 7'
  • the irregular arrangement of the nubs N" causes the coolant passed around the nubs N 'and N "specifically to critical,
  • the dimpled shape can thus be variably shaped without departing from the basic idea according to the invention:
  • Adjacent tubes R ' have the same structuring in the composite in order to ensure a simple and secure installation of the individual tubes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP11160576.2A 2010-03-31 2011-03-31 Echangeur thermique Withdrawn EP2372286A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010003514A DE102010003514A1 (de) 2010-03-31 2010-03-31 Wärmetauscher

Publications (2)

Publication Number Publication Date
EP2372286A2 true EP2372286A2 (fr) 2011-10-05
EP2372286A3 EP2372286A3 (fr) 2014-06-18

Family

ID=44260084

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11160576.2A Withdrawn EP2372286A3 (fr) 2010-03-31 2011-03-31 Echangeur thermique

Country Status (3)

Country Link
EP (1) EP2372286A3 (fr)
CN (1) CN102213555A (fr)
DE (1) DE102010003514A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103411362A (zh) * 2013-08-27 2013-11-27 成都添益天然气压缩机制造有限公司 一种空气冷却器
WO2014048688A1 (fr) * 2012-09-25 2014-04-03 Behr Gmbh & Co. Kg Tube plat
WO2014082931A1 (fr) * 2012-11-28 2014-06-05 Valeo Termico, S.A. Échangeur thermique pour gaz, en particulier pour les gaz d'échappement d'un moteur

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Publication number Priority date Publication date Assignee Title
US3810509A (en) * 1971-10-15 1974-05-14 Union Carbide Corp Cross flow heat exchanger
FR2410237A1 (fr) * 1977-11-23 1979-06-22 Thermal Waerme Kaelte Klima Echangeur de chaleur tubulaire pour vehicules
FR2690235A1 (fr) * 1992-04-16 1993-10-22 Valeo Thermique Moteur Sa Paroi tubulaire de boîte à fluide et procédé pour la fabrication d'un échangeur de chaleur par enfoncement de tubes de circulation.
FR2712674B1 (fr) * 1993-11-19 1996-01-19 Valeo Thermique Moteur Sa Echangeur de chaleur et procédé de refroidissement utilisant un fluide caloporteur à différentes températures.
JPH08327282A (ja) * 1995-05-30 1996-12-13 Sanden Corp 熱交換器
JP2000018880A (ja) * 1998-06-23 2000-01-18 Showa Alum Corp 一体型熱交換器
DE10214467A1 (de) * 2002-03-30 2003-10-09 Modine Mfg Co Abgaswärmetauscher für Kraftfahrzeuge
DE10359806A1 (de) * 2003-12-19 2005-07-14 Modine Manufacturing Co., Racine Wärmeübertrager mit flachen Rohren und flaches Wärmeübertragerrohr
US20070000652A1 (en) * 2005-06-30 2007-01-04 Ayres Steven M Heat exchanger with dimpled tube surfaces
DE102006051000A1 (de) * 2005-10-26 2007-07-12 Behr Gmbh & Co. Kg Wärmetauscher, Verfahren zur Herstellung eines Wärmetauschers
US9127895B2 (en) * 2006-01-23 2015-09-08 MAHLE Behr GmbH & Co. KG Heat exchanger
US20100025024A1 (en) * 2007-01-23 2010-02-04 Meshenky Steven P Heat exchanger and method
WO2009057623A1 (fr) * 2007-10-31 2009-05-07 Calsonic Kansei Corporation Echangeur de chaleur
US8235098B2 (en) * 2008-01-24 2012-08-07 Honeywell International Inc. Heat exchanger flat tube with oblique elongate dimples

Non-Patent Citations (1)

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Title
None

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014048688A1 (fr) * 2012-09-25 2014-04-03 Behr Gmbh & Co. Kg Tube plat
US10520261B2 (en) 2012-09-25 2019-12-31 Mahle International Gmbh Flat pipe
WO2014082931A1 (fr) * 2012-11-28 2014-06-05 Valeo Termico, S.A. Échangeur thermique pour gaz, en particulier pour les gaz d'échappement d'un moteur
CN104981678A (zh) * 2012-11-28 2015-10-14 法雷奥热力股份有限公司 气体热交换器,特别是用于发动机的排气的气体热交换器
CN104981678B (zh) * 2012-11-28 2018-11-27 法雷奥热力股份有限公司 气体热交换器，特别是用于发动机的排气的气体热交换器
CN103411362A (zh) * 2013-08-27 2013-11-27 成都添益天然气压缩机制造有限公司 一种空气冷却器

Also Published As

Publication number Publication date
DE102010003514A1 (de) 2011-10-06
EP2372286A3 (fr) 2014-06-18
CN102213555A (zh) 2011-10-12

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