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EP1748271B1 - Tubes et ailettes pour bloc d'échange de chaleur - Google Patents

Tubes et ailettes pour bloc d'échange de chaleur Download PDF

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Publication number
EP1748271B1
EP1748271B1 EP06009625A EP06009625A EP1748271B1 EP 1748271 B1 EP1748271 B1 EP 1748271B1 EP 06009625 A EP06009625 A EP 06009625A EP 06009625 A EP06009625 A EP 06009625A EP 1748271 B1 EP1748271 B1 EP 1748271B1
Authority
EP
European Patent Office
Prior art keywords
tube
fin
tube end
block
end regions
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
EP06009625A
Other languages
German (de)
English (en)
Other versions
EP1748271A1 (fr
Inventor
Roland-Gerhard Stromsky
Eberhard Storz
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.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche AG
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 Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Publication of EP1748271A1 publication Critical patent/EP1748271A1/fr
Application granted granted Critical
Publication of EP1748271B1 publication Critical patent/EP1748271B1/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
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/025—Tubular elements of cross-section which is non-circular with variable shape, e.g. with modified tube ends, with different geometrical features
    • 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
    • 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
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/126—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins
    • 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
    • F28F9/0221—Header boxes or end plates formed by stacked elements

Definitions

  • the present invention relates to a rib / tube block for a heat exchanger, in particular a motor vehicle, having the features of the preamble of claim 1.
  • the invention also relates to a heat exchanger equipped with such a rib / tube block.
  • a heat exchanger for a motor vehicle which has a rib / tube block.
  • This rib / tube block is provided on two opposite edge sides each with a collecting box. At each of these edge sides, all the tube end regions are widened and joined to each other in a planar manner to form a tube end package.
  • the Rohrend Symposiume extend parallel to the longitudinal direction of the respective tubes.
  • Another heat exchanger is from the EP 0 881 447 B1 known, in which the Rohrend Societye are also joined together to Rohrend distributeden.
  • the Rohrend Stude also extend in each case parallel to the respective pipe longitudinal direction.
  • the adjoining wall sections at adjacent pipe end regions are shaped such that in the width direction of the individual pipes or in the depth direction of the ribs / pipe block a positive connection is formed between adjacent pipe end regions.
  • the said wall sections are curved with respect to the respective pipe longitudinal direction.
  • the present invention is concerned with the problem of providing for a rib / tube block of the type mentioned or for a heat exchanger equipped therewith an improved embodiment, which is characterized in particular by improved manufacturability and preferably by improved flow with a heat transfer medium.
  • the present invention is based on the general idea to align the Rohrend Schemee inclined relative to the respective pipe longitudinal direction.
  • the ribs / tube block can be handled more easily during the production because the tubes stacked in the width direction of the rib / tube block and in the depth direction of the individual tubes in the longitudinal direction of the rib / tube block parallel to the longitudinal directions of the individual tubes runs, at least unidirectionally form-fit in the Rohrend Schemeen abut each other.
  • the flow resistance in the transition from the collecting box in the ribs / tube block or from the ribs / tube block in the collection box if the inclination of the Rohrend Schemee is oriented according to the respective flow deflection.
  • the flow between the respective collection box and the tube longitudinal areas of the rib / tube block located between the pipe end areas must still be deflected by about 90 °, this deflection now takes place in two steps, each of which is less than 90 °.
  • the first deflection takes place at the transition between collecting tank and pipe end area.
  • the second transition then takes place at the transition between the pipe end region and the pipe longitudinal region. The same applies to the emerging from the ribs / tube block flow.
  • a fin / tube block 1 of a heat exchanger 2 includes a plurality of tubes 3 stacked on each other in a width direction B of the fin / tube block 1.
  • this width direction B of the ribs / tube block 1 corresponds to a depth direction t of the individual tubes 3.
  • Corresponding corrugated ribs 4 are arranged between adjacent tubes 3, which flow through the ribs / tube block 1 in a depth direction T of the ribs / tube block 1 while flowing around the tubes 3 allows.
  • the depth direction T of the ribs / tube block 1 extends parallel to the width directions b of the individual tubes 3.
  • the individual tubes 3 are flat tubes, which preferably have a rectangular cross section but can also have a Arenenformquerites.
  • the tubes 3 may be longitudinally welded or extruded.
  • the ribs / tube block 1 In a longitudinal direction L of the ribs / tube block 1, which runs parallel to the longitudinal directions I of the individual tubes 3, the ribs / tube block 1 has two mutually remote edge sides 5 and 6.
  • each tube 3 In these edge sides 5, 6, each tube 3 has a tube end region 7.
  • At least at one of these edge sides 5, 6, preferably at both edge sides 5, 6, all Rohrend Schemee 7 are expanded and joined together flat to a Rohrendplex 8 or 9.
  • the pipe end regions 7 are widened in the respective pipe depth direction t, in each case with respect to a pipe longitudinal region 10 of the respective pipe 3 lying between two pipe end regions 7, so that they adjoin one another in the block width direction B.
  • all tube end regions 7 of the respective tube end package 8 or 9 are each inclined relative to the respective tube longitudinal direction I.
  • all Rohrend Schemee 7 incline within the respective Rohrendvons 8 and 9 in the same direction and at right angles.
  • the inclination of the Rohrend Gebe 7 takes place in each case to a non-illustrated bending axis, which is perpendicular to the ribs / tube block 1, that is parallel to the block depth direction T or parallel to the respective tube width direction b.
  • the respective Rohrend Siemense 7 are widened in the tube depth direction t while they are retracted in the tube width direction b.
  • the intake and the widening of the pipe end regions 7 can be coordinated with one another such that a free flow cross section in the respective pipe end region 7 is approximately the same as in the pipe longitudinal region 10 of the respective pipe 3. In this way, flow resistances can be reduced by changes in the cross section.
  • the deformation of the pipe end regions 7 also takes place in such a way that the free ends of the pipe end regions 7 each lie approximately in a plane which runs parallel to the block width direction B and parallel to the block depth direction T.
  • the respective level is indicated in FIGS. 3 and 4 by a dash-dotted line and denoted by 11.
  • the heat exchanger 2 comprises, in addition to the ribs / tube block 1, at least one collecting box 12 which is arranged on one of the edge sides 5 and 6, respectively.
  • a collection box 12 is arranged on both edge sides 5 and 6, wherein the two header boxes 12 may be designed quite differently.
  • the respective collection box 12 is placed on the associated Rohrendvers 8 or 9 and connected to this tight.
  • a liquid or gaseous heat transfer medium is supplied to the fins / tube block 1 during operation of the heat exchanger 2.
  • the inflow is symbolized in FIG. 5 by solid arrows and denoted by 13.
  • the respective heat transfer medium from the fins / tube block 1 can be discharged in another flow direction through the collecting box 12.
  • the corresponding outflow is indicated in Fig. 5 with broken arrows and designated 14.
  • the inclination of the pipe end regions 7 takes place in the direction of a flow direction prevailing in the collecting box 12. This allows the flow resistance during deflection of the inflow 13 and the outflow 14 at the transition between the collection box 12 and ribs / tube block 1 can be reduced.
  • the total deflection between the collection box 12 and ribs / tube block 1 is about 90 °.
  • the deflection of the flow 13 is divided by the collection box 12 in the ribs / tube block 1 at the Rohrend Schemeen 7 in two partial deflections, both of which are each smaller than 90 °.
  • the Rohrend Schemee 7 are inclined relative to the tube longitudinal regions 10 in an angular range of about 30 ° to 60 ° relative to the associated pipe longitudinal regions 10.
  • Preferred as in here shown representations is an inclination between Rohrend Schemeen 7 and associated pipe longitudinal portions 10 of about 45 °.
  • each tube end region 7 has a first tube wall 15 and an opposite second tube wall 16 in the tube depth direction t.
  • this pipe walls 15, 16 are the adjacent Rohrend Stude 7 to each other flat.
  • the pipe end regions 7 are shaped such that an end edge 17 of the first pipe wall 15 with respect to the inflow 13 is arranged upstream of an end edge 18 of the second pipe wall 16.
  • the end edge 18 of the second tube wall 16 is then arranged upstream of the end edge 17 of the first tube wall 15.
  • the construction with respect to the flow direction 13, 14 staggered end edges 17, 18 leads to a sharp-edged separation between adjacent pipes 3.
  • the transition between the collection box 12 and ribs / tube block 1 is then carried out for the heat transfer medium with a reduced resistance.
  • the heat exchanger 2 is part of a cooling system, not shown here, preferably a motor vehicle.
  • the heat exchanger 2 is a water cooler, oil cooler or intercooler through which cooling air can flow in the region of the corrugated fins 4.
  • the heat exchanger 2 can be a heater or cooler through which fresh air and / or circulating air can flow in the region of the corrugated fins 4 for the temperature control of air fed into a vehicle interior.

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)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Claims (9)

  1. Bloc de tubes et ailettes pour un échangeur de chaleur (2), notamment d'un véhicule automobile, dans lequel, sur au moins un côté de bord (5, 6), toutes les régions terminales de tubes (7) sont élargies et ensuite réunies, à plat les unes contre les autres, en un groupe terminal de tubes (8, 9),
    caractérisé en ce que toutes les régions terminales de tubes (7) du groupe terminal de tubes (8, 9) sont respectivement inclinées par rapport à la direction longitudinale (1) des tubes respectifs.
  2. Bloc de tubes et ailettes selon la revendication 1, caractérisé en ce que, pour des régions terminales de tubes voisines (7), une première paroi de tube (15) d'une région terminale de tube (7) se raccorde chaque fois à plat à une deuxième paroi de tube (16) de l'autre région terminale de tube (7), de telle sorte qu'une arête terminale (17 ou 18) de la première paroi de tube (15 ou 16) est disposée en amont d'une arête terminale (18 ou 17) de l'autre paroi de tube (16 ou 15).
  3. Bloc de tubes et ailettes selon la revendication 1, caractérisé en ce que le groupe terminal de tubes respectif (8, 9) est disposé dans une boîte collectrice (12) par laquelle un fluide caloporteur liquide ou gazeux peut être apporté au bloc (1) de tubes et ailettes ou peut être évacué du bloc (1) de tubes et ailettes.
  4. Bloc de tubes et ailettes selon la revendication 3, caractérisé en ce que les régions terminales de tubes (7) sont inclinées, par rapport à la direction longitudinale (1) des tubes respectifs, en direction d'une direction d'écoulement (13, 14) du fluide caloporteur prédominante dans la boîte collectrice (12).
  5. Bloc de tubes et ailettes selon l'une des revendications 1 à 4, caractérisé en ce que les régions terminales de tubes (7) sont inclinées d'environ 30° à 60°, ou d'environ 45°, par rapport à la direction longitudinale (1) des tubes respectifs.
  6. Bloc de tubes et ailettes selon l'une des revendications 1 à 5, caractérisé en ce que le bloc (1) de tubes et ailettes présente sur les deux côtés de bords opposés (5, 6) ou sur au moins un côté de bord (5, 6) un tel groupe terminal de tubes respectif (8, 9).
  7. Bloc de tubes et ailettes selon la revendication 6, caractérisé en ce que les régions terminales de tubes (7) d'un groupe terminal de tubes (8) et les régions terminales de tubes (7) de l'autre groupe terminal de tubes (9) sont inclinées dans le même sens ou en sens contraires par rapport à la direction longitudinale (1) des tubes respectifs.
  8. Bloc de tubes et ailettes selon l'une des revendications 1 à 7, caractérisé en ce que les régions terminales de tubes (7) sont élargies dans une direction de profondeur (t) des tubes correspondants (3) et sont rétrécies dans une direction de largeur (b) des tubes (3), de telle sorte que la section d'écoulement libre est approximativement de même taille dans la région terminale de tube respective (7) et dans le tube correspondant (3).
  9. Échangeur de chaleur pour un système de refroidissement, notamment d'un véhicule automobile, avec un bloc (1) de tubes et ailettes selon au moins l'une des revendications 1 à 8.
EP06009625A 2005-07-30 2006-05-10 Tubes et ailettes pour bloc d'échange de chaleur Not-in-force EP1748271B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005038510A DE102005038510A1 (de) 2005-07-30 2005-07-30 Rippen/Rohrblock für einen Wärmeübertrager

Publications (2)

Publication Number Publication Date
EP1748271A1 EP1748271A1 (fr) 2007-01-31
EP1748271B1 true EP1748271B1 (fr) 2008-01-23

Family

ID=37441775

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06009625A Not-in-force EP1748271B1 (fr) 2005-07-30 2006-05-10 Tubes et ailettes pour bloc d'échange de chaleur

Country Status (3)

Country Link
EP (1) EP1748271B1 (fr)
AT (1) ATE384926T1 (fr)
DE (2) DE102005038510A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017107134A1 (de) 2017-04-03 2018-10-04 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Wärmetauscher für Hochtemperatur-Anwendung, insbesondere Ladeluftkühler

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201009701D0 (en) 2010-06-10 2010-07-21 Rolls Royce Plc A heat exchanger
WO2014003865A1 (fr) * 2012-06-28 2014-01-03 Cooper-Standard Automotive, Inc. Échangeur de chaleur
FR2992713A1 (fr) * 2012-06-29 2014-01-03 Valeo Systemes Thermiques Faisceau d'echange de chaleur et echangeur de chaleur comprenant ledit faisceau

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09250894A (ja) * 1996-03-14 1997-09-22 Calsonic Corp 熱交換器
DE19722099B4 (de) 1997-03-11 2004-12-23 Behr Gmbh & Co. Kg Wärmeübertrager für ein Kraftfahrzeug
DE19722097A1 (de) * 1997-05-27 1998-12-03 Behr Gmbh & Co Wärmeübertrager sowie Wärmeübertrageranordnung für ein Kraftfahrzeug
DE19743427B4 (de) * 1997-10-01 2007-05-03 Behr Gmbh & Co. Kg Wärmeübertrager
DE19820937A1 (de) * 1998-05-09 1999-11-11 Behr Gmbh & Co Flachrohr sowie Verfahren und Vorrichtung zu seiner Herstellung
DE10033070A1 (de) * 2000-03-31 2002-01-17 Modine Mfg Co Kühler für Kraftfahrzeuge sowie Herstellungsverfahren
DE10132153A1 (de) * 2001-07-03 2003-01-23 Modine Mfg Co Wärmetauscher für Kraftfahrzeuge
DE102004003047A1 (de) * 2004-01-20 2005-08-11 Behr Gmbh & Co. Kg Wärmeübertrager, insbesondere Kühlmittel- oder Ladeluftkühler für Kraftfahrzeuge
DE102004012358A1 (de) * 2004-03-13 2005-09-29 Dr.Ing.H.C. F. Porsche Ag Wärmetauscher, insbesondere Ladeluftkühler für ein Kraftfahrzeug

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017107134A1 (de) 2017-04-03 2018-10-04 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Wärmetauscher für Hochtemperatur-Anwendung, insbesondere Ladeluftkühler

Also Published As

Publication number Publication date
EP1748271A1 (fr) 2007-01-31
DE502006000310D1 (de) 2008-03-13
ATE384926T1 (de) 2008-02-15
DE102005038510A1 (de) 2007-02-01

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