EP2909562B1 - Wärmetauscher - Google Patents

Wärmetauscher Download PDF

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Publication number
EP2909562B1
EP2909562B1 EP13783291.1A EP13783291A EP2909562B1 EP 2909562 B1 EP2909562 B1 EP 2909562B1 EP 13783291 A EP13783291 A EP 13783291A EP 2909562 B1 EP2909562 B1 EP 2909562B1
Authority
EP
European Patent Office
Prior art keywords
edge
height
recess
heat exchanger
region
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
EP13783291.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2909562A1 (de
Inventor
Jürgen Kaiser
Boris Kerler
Alexander Meiser
Wael Nassar
Martin Paarmann
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 International GmbH
Original Assignee
Mahle International 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 Mahle International GmbH filed Critical Mahle International GmbH
Publication of EP2909562A1 publication Critical patent/EP2909562A1/de
Application granted granted Critical
Publication of EP2909562B1 publication Critical patent/EP2909562B1/de
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
    • 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
    • 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
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0224—Header boxes formed by sealing end plates into covers
    • 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
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • F28F9/182—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding the heat-exchange conduits having ends with a particular shape, e.g. deformed; the heat-exchange conduits or end plates having supplementary joining means, e.g. abutments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/04—Cooling of air intake supply
    • F02B29/045—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly
    • 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

Definitions

  • the present invention relates to a heat exchanger for heat exchange between a first fluid and a second fluid.
  • WO 2008/071362 A1 is a generic heat exchanger, for example in the manner of a radiator, known, comprising a block for the separate and heat exchange guidance of the two fluids, which has a number of first fluid flowed through flat tubes with a narrow pipe side and a pipe broadside.
  • the flat tubes terminate each longitudinal end in a bottom of a box, the flat tubes are guided through corresponding through holes in the ground in the box.
  • Each of the through holes in the bottom has a the corresponding flat tube bordering and erected edge, the edge broadsides are usually higher than the edges of narrow sides and merge into one another via a corresponding inclination.
  • the present invention therefore deals with the problem of providing a heat exchanger of the generic type an improved embodiment, which is characterized in particular by a longer service life.
  • the present invention is based on the general idea, in the region of an inclination, over which a broad side edge merges into a lower edge narrow side, to provide a particular rounded recess whose height is smaller than that of the narrow edge side, whereby the stresses in the corners of the flat tubes, the are bordered by the respective edge of the passage opening, reduced by about 14% and the life can be increased by about 50%.
  • the heat exchanger according to the invention is constructed as follows: It has a block for the separate and heat exchanging guidance of a first and a second fluid, said block having a number of first fluid flowed through flat tubes with a narrow pipe side and a pipe broadside.
  • the flat tubes are introduced via corresponding through holes in a bottom in a box and fluidly connected thereto.
  • Each of these through holes has an associated edge of the associated flat tube and erected, wherein the marginal broad sides of this edge are higher than the narrow edges and merge into one another via a corresponding inclination.
  • the recess is now provided in the region of this inclination, in particular in a corner region, whose height is less than that of the edge narrow side and which leads to the voltage reduction described above.
  • a contact surface edge of a contact surface between the edge and the flat tube in the region of the recess has a lower height than in the region of the edge narrow side. This contributes significantly to reduce the stresses occurring in the corner region of the flat tube.
  • the provision of this recess has led in a surprising manner to a significant decrease in the voltage and thus to a significant increase in the life of the heat exchanger.
  • the height of the particular rounded recess corresponds to about half the height of the edge broadside.
  • the height of the edge broadside may for example be about 7 mm, in which case the height of the recess is about 3.5 mm. This information is particularly conceivable for common heat exchangers, as used for example as coolers in motor vehicles.
  • a heat exchanger 1 for heat exchange between a first and a second fluid, for example for heat exchange between air and coolant, a block 2 for the separate and heat exchanging guidance of the two fluids, a number of the first fluid flowed through flat tubes 3 with a narrow side pipe 4 and a pipe broadside 5 has.
  • the flat tubes 3 are via corresponding passage openings 6 (compare also the FIGS. 2 and 3 ) guided in a bottom 7 in a box 8 and thereby fluidly connected thereto.
  • Each of the passage openings 6 has an associated edge tube 9 enclosing and erected edge 9, the edge broad sides 10 are higher than the narrow edges 11 and pass over a corresponding inclination 12 into each other (see in particular FIG.
  • a rounded recess 13 is now provided in the region of this slope 12, the height h 1 is less than the height h 2 of the narrow edge 11 and of course less than the height h 3 of the edge broadside 10.
  • a voltage in a bordered by the edge 9 flat tube 3 clearly, for example, by 14%, can be reduced, whereby the life of the heat exchanger 1 can be increased by almost 50%.
  • the height h 1 of the rounded-out recess 13 preferably corresponds to approximately half the height h 3 of the edge broadside, so that, for example, at a height h 3 of approximately 7 mm, the height h 1 of the recess 13 is approximately 3.5 mm.
  • the recess 13 is located directly on the edge narrow side 11 and then goes over the slope 12 in the edge broadside 10 via.
  • FIG. 4a and 4b so there is a heat exchanger 1 'according to the prior art, for example according to the DE 10 2011 075 071 A1 , shown in which on the edge narrow side 11 'of the edge 9' is bent outwards.
  • a contact surface edge 14 'between the edge 9' and the flat tube 3 'on the narrow side 11' at the same height h, as in the area of the rounded recess 13 ', as shown in FIG Fig. 4b is shown.
  • the contact surface edge 14 ' is drawn here interrupted and represents an edge of a contact surface 16' between the edge 9 'and the flat tube 3'.
  • the height h 4 of the contact surface edge 14 in the region of the narrow edge 11 ' thus corresponds to the height h 5 of the contact surface edge 14 'in the region of the recess 13'.
  • the contact surface edge 14 in the region of the recess 13 likewise has a fillet 15 analogous to this, which contributes substantially to reducing the stresses occurring in the corner region of the flat tube 3. This is very vivid in Fig. 5b , but also in Fig. 5a shown. It can be clearly seen that the contact surface edge 14 extends in the region of the recess 13 below the contact surface edge 14 in the region of the edge narrow side 11.
  • the contact surface 16 is correspondingly excluded in the region of the recess 13.
  • the contact surface edge 14 thus has a smaller height h 5 in the region of the recess 13 than in the region of the narrow edge 11, that is, the height h 4 of the contact surface edge 14 in the region of the narrow edge 11 is greater than in the region of the recess thirteenth
  • the height h 4 of the contact surface edge 14 is also smaller in the region of the edge narrow side 11 than the height h 3 of the edge 9 in the region of the edge broadside 10. The same applies to the height h 5 of the contact surface edge 14 in the region of the recess 13th
  • the edge 9 in the corner region that is, in the region of the recess 13 have a reduced wall thickness.

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)
EP13783291.1A 2012-10-22 2013-10-21 Wärmetauscher Not-in-force EP2909562B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012219268.9A DE102012219268A1 (de) 2012-10-22 2012-10-22 Wärmetauscher
PCT/EP2013/071943 WO2014064036A1 (de) 2012-10-22 2013-10-21 Wärmetauscher

Publications (2)

Publication Number Publication Date
EP2909562A1 EP2909562A1 (de) 2015-08-26
EP2909562B1 true EP2909562B1 (de) 2016-09-28

Family

ID=49488567

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13783291.1A Not-in-force EP2909562B1 (de) 2012-10-22 2013-10-21 Wärmetauscher

Country Status (7)

Country Link
US (1) US10215502B2 (pt)
EP (1) EP2909562B1 (pt)
CN (1) CN104704314A (pt)
BR (1) BR112015008246B1 (pt)
CA (1) CA2881876A1 (pt)
DE (1) DE102012219268A1 (pt)
WO (1) WO2014064036A1 (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014213758A1 (de) * 2014-07-15 2016-01-21 Mahle International Gmbh Rohrboden und Wärmeübertrager
GB2550952B (en) * 2016-06-02 2020-07-01 Denso Marston Ltd A header plate for a heat exchanger
DE202017103235U1 (de) 2017-05-30 2018-08-31 Autokühler GmbH & Co KG Wärmeaustauscher
CN108571378A (zh) * 2018-06-14 2018-09-25 东风贝洱热系统有限公司 一种汽车中冷器主片

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3423746A1 (de) * 1984-06-28 1986-01-09 Thermal-Werke Wärme-Kälte-Klimatechnik GmbH, 6832 Hockenheim Waermetauscherlamelle fuer rohre mit elliptischem oder ovalem querschnitt
DE3910357A1 (de) * 1989-03-30 1990-10-04 Autokuehler Gmbh & Co Kg Leitblech fuer einen waermetauscher und daraus hergestelltes waermetauschernetz
JP3822958B2 (ja) * 1997-08-04 2006-09-20 サンデン株式会社 熱交換器の製造方法
JP2004293982A (ja) * 2003-03-27 2004-10-21 Calsonic Kansei Corp 熱交換器のコア部構造
EP1728038B1 (de) 2004-03-05 2011-07-27 Behr GmbH & Co. KG Vorrichtung zum austausch von wärme und verfahren zu deren herstellung
US7413006B2 (en) * 2006-04-06 2008-08-19 Modine Manufacturing Company Header plate for use in a heat exchanger
DE102007059673A1 (de) 2006-12-13 2008-08-07 Behr Gmbh & Co. Kg Wärmetauscher zum Wärmetausch zwischen einem ersten Fluid und einem zweiten Fluid
FR2951259B1 (fr) * 2009-10-08 2014-02-28 Valeo Systemes Thermiques Plaque collectrice pour un echangeur de chaleur et echangeur de chaleur correspondant
DE102011075071A1 (de) 2011-05-02 2012-11-08 Behr Gmbh & Co. Kg Wärmetauscher, insbesondere Ladeluftkühler

Also Published As

Publication number Publication date
WO2014064036A1 (de) 2014-05-01
BR112015008246B1 (pt) 2020-11-17
CA2881876A1 (en) 2014-05-01
US20150292813A1 (en) 2015-10-15
US10215502B2 (en) 2019-02-26
EP2909562A1 (de) 2015-08-26
BR112015008246A2 (pt) 2017-07-04
CN104704314A (zh) 2015-06-10
DE102012219268A1 (de) 2014-04-24

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