EP1489372B1 - Tube plat pour échangeur de chaleur - Google Patents

Tube plat pour échangeur de chaleur Download PDF

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Publication number
EP1489372B1
EP1489372B1 EP04009052.4A EP04009052A EP1489372B1 EP 1489372 B1 EP1489372 B1 EP 1489372B1 EP 04009052 A EP04009052 A EP 04009052A EP 1489372 B1 EP1489372 B1 EP 1489372B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
exchanger tube
limbs
broad side
broad
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.)
Expired - Lifetime
Application number
EP04009052.4A
Other languages
German (de)
English (en)
Other versions
EP1489372A1 (fr
Inventor
Viktor Dipl.-Ing. Brost
Rainer Käsinger
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.)
Modine Manufacturing Co
Original Assignee
Modine Manufacturing Co
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=33394925&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1489372(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Modine Manufacturing Co filed Critical Modine Manufacturing Co
Publication of EP1489372A1 publication Critical patent/EP1489372A1/fr
Application granted granted Critical
Publication of EP1489372B1 publication Critical patent/EP1489372B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F28D1/03—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 plate-like or laminated conduits
    • F28D1/0391—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 plate-like or laminated conduits a single plate being bent to form one or more conduits
    • 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
    • F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49391—Tube making or reforming

Definitions

  • the invention relates to a flat heat exchanger tube, according to the preamble of claim 1.
  • U.S. 5,579,837 discloses such a tube.
  • Flat heat exchanger tubes with the above features are known from US 6, 209, 202 B1 and from a whole series of other documents ( U.S. 5,579,837 . EP 1 074 807 A ), since it is an extremely intensive area of technology.
  • very small bending radii are provided at the foot of the legs. Narrow bending radii cause the closely adjacent limbs to leave the outer circumference of the heat exchanger tube, where the heat exchanger tube is later soldered into tube plate openings, leaving only a very small, approximately triangular, "hole” which is sealed without problems during soldering.
  • the JP 2001 -170713 shows a flat heat exchanger tube with two bent legs, which have a reduction in material in the turn to make the bending radii as small as possible.
  • This tube is to be improved with respect to the solder connection between the legs and the opposite broad side of the tube.
  • the object of the invention is to form heat exchanger tubes with the features of the preamble, which are produced by means of rolling, so that no problems in sealing soldering on the outer circumference of the tube must be expected with the tubesheet, and that the allowable manufacturing tolerances can be increased.
  • the solution according to the invention results with respect to the heat exchanger tube from the features of claim 1. It is advantageous in the flat heat exchanger tube simultaneously with the production of the bending radii to reduce the sheet thickness of the sheet metal strip in the bending radius by up to 40% by means of rollers. Alternatively, you can roll the inner bending radius to less than 0.2 mm and thereby displace the material in the direction of the outer bending radius, which is thereby minimized.
  • the sheet thickness of the legs in the region of the bending radius is smaller than in the other sections of the legs, so that the connecting web on the feet has its smallest thickness, wherein the reduced sheet thickness can be produced by profiled rollers that from the later inside of the heat exchanger tube From acting in the bending radius, such small bending radii are possible that the subsequent sealing of the pipe ends in the openings of tube plates is easily possible.
  • the sheet thickness in the bending radii has been reduced by a maximum of 40% of the sheet thickness of the sheet metal strip, which has proven to be advantageous. Larger reductions affect the strength of the pipe.
  • the legs of the connection only over a part of the distance, preferably about 1/3 of the distance between the one broad side and the other broad side abut each other and then the legs an angle greater than 45 ° to about 100 °, more preferably 60 ° form , on the one hand is sufficient large interface between the legs created and on the other hand, the elasticity of the connection is improved.
  • the legs form between them and the other broad side about an isosceles triangle.
  • the angle of> 45 °, preferably of 60 °, between the legs makes it possible to allow slightly larger tolerances in heat exchanger tubes formed in this way.
  • the heat exchanger tubes produced from the sheet metal strip are cut into appropriate service lengths and stacked together with corrugated ribs to form the so-called ribbed-tube block or network of the heat exchanger.
  • the network is soldered, where it is loaded with weights, in order to keep the entire network until the completion of the soldering process under a certain voltage and thus to produce quality heat exchange networks.
  • the bent end includes with its leg about an angle> 90 ° and ⁇ 130 °.
  • At least one side of the sheet metal strip is solder-plated, namely the later outer side of the heat exchanger tube.
  • Certain embodiments may require solder-coated metal strips on both sides, if, for example, further known connections formed by a single broad side between the broad sides should be provided for dividing the heat exchanger tube into more than two chambers.
  • Such compounds may also be alternating, d. h., sometimes from one broadside and sometimes from the other broadside, be created.
  • the flat heat exchanger tube which can be produced from a single deformable sheet metal strip of small sheet thickness made of aluminum sheet by means of rollers, has two opposite broad sides 1, 2 and two opposite narrow sides 3, 4 Fig. 1 not shown narrow side 4 is identical to the illustrated narrow side 3 is formed.
  • a compound 5 is disposed between the two broad sides 1, 2 and divides the heat exchanger tube into two chambers 6, 7 in the Fig. 1 should have the same cross-sectional size, since the compound 5 is located approximately in the middle of the two broad sides 1, 2 , but this does not necessarily have to be so. (The in the Fig. 1 provisionally drawn folds 50 should initially remain unnoticed.)
  • the connection 5 could therefore also be arranged outside the center and the chambers 6, 7 could therefore have different cross-sectional size.
  • the compound 5 consists of two closely adjacent legs 10, 11, wherein in the embodiment of the Fig. 1 and 2 the legs 10, 11 only over about 1/3 of the distance a between the two broad sides 1, 2 abut each other. This will create a (compared to US 6, 209, 202 B1 ) larger connecting surface between the legs 10, 11 created, which leads to high quality solder joints.
  • the legs 10, 11 have been formed from the two longitudinal edges 20, 21 of the sheet metal strip. Each leg 10, 11 has a transition with a small bending radius 12 in the broad side 1 foot 13 and a head 14 . The head 14 abuts the other broad side 2 and is later soldered to it.
  • the sheet thickness of the legs 10, 11 is smaller in the region of the bending radii 12 than in the other sections of the legs 10, 11, so that the compound 5 has its smallest sheet thickness at the feet 13 .
  • the reduced sheet thickness is produced by rolling in the longitudinal direction of the aluminum sheet metal strip in a first processing step, wherein the sheet thickness of the sheet metal strip in the region of the bending radii 12 is reduced by about 30%. This process step proceeds prior to the production of the bending radii 12 , ie the rollers act to reduce the sheet thickness on the flat sheet metal strip. This was in the Fig. 5 indicated by the step 1. There 8 out of a total of 18 possible steps have been drawn purely in principle.
  • step 4 a crowning of the sheet metal strip was made in order to achieve a certain bias of the metal strip, which is intended to prevent the collapse of the broad side of the heat exchanger tube.
  • step 2 it is possible to start with the step described there as step 2 and at the same time make the reduction of the sheet thickness with the production of the bending radii 12 .
  • rollering it is to be understood as a production process which is carried out with a system known per se. Forming operations on the endless sheet-metal strip take place successively on the installation, with a plurality of pairs of rollers interacting. Each pair of rollers consists of an above and below the sheet metal strip arranged roller.
  • the finished heat exchanger tube is cut to appropriate service lengths after leaving the plant.
  • the sheet thickness in the region of the bending radii 12, for example, still 0.20 mm, as in the Fig. 2 was drawn.
  • the sheet metal strip has a thickness of approximately 0.30 mm.
  • the part of the distance a between one broad side 1 and the other broad side 2, in which the legs 10, 11 abut each other, begins at the foot 13th Roll arranged below the sheet metal strip.
  • the finished heat exchanger tube is cut to appropriate service lengths after leaving the plant.
  • the sheet thickness in the region of the bending radii 12, for example, still 0.20 mm, as in the Fig. 2 was drawn.
  • the sheet metal strip has a thickness of approximately 0.30 mm.
  • the head 14 of the legs 10, 11 forming the end of the respective leg 10, 11 is bent in the direction of the respective longitudinal edge 20, 21 belonging narrow side 3, 4 of the heat exchanger tube and supported with the bent end on the other broad side 2 .
  • This end is slightly rounded, which on the one hand results in a sufficiently large Lötthetics Chemistry between the longitudinal edges 20, 21 and the broad side 2 and on the other hand causes the rounding that the angle between the legs 10, 11 can be more easily spread, which serves to compensate for tolerances.
  • the outside of the heat exchanger tube is solder plated.
  • the 3 and 4 show a case in which the two legs 10, 11 of another compound 5 from a broad side 1 in the form of a fold 50 are formed.
  • Such folds 50 are providable in the described inventive heat exchanger tube.
  • the legs 10, 11 lie over the entire towards the tube interior.
  • the size of the bend 31 corresponds approximately to the sheet metal strip thickness. In the bending radius 12 of this bend 31 , a smaller sheet thickness is present than in the adjacent sections of the longitudinal edge 20 of the sheet metal strip. Also, this bend 31 can be made so that first reduces the sheet thickness in the bending radius 12 and then the bend 31 itself is made. This leads to how out of the Fig.
  • connection 5 which, as already mentioned, is formed from the broad side 1 of the heat exchanger tube.
  • connection 5 of a heat exchanger tube was shown, the sheet thickness was not reduced in the bending radii 12 .
  • an inner bending radius of less than 0.2 mm was produced by means of rollers, wherein the aluminum was displaced or displaced in the direction of the outer bending radius 12a , which is thereby formed very small.
  • the second bend 30 in the legs 10, 11 is provided, which is for the tolerance compensation and for the elasticity of the compound 5 of importance.
  • the end of the longitudinal edge 20 and 21 is approximately half round deformed, whereby the tolerance compensation is supported.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Claims (7)

  1. Tube plat pour échangeur de chaleur, qui peut être fabriqué par laminage à partir d'une bande de tôle unique sans fin, de faible épaisseur de tôle en aluminium, comprenant deux côtés larges opposés (1, 2) espacés d'une distance (a) et deux côtés étroits opposés (3, 4), ainsi qu'au moins une liaison (5) entre les deux côtés larges (1, 2), afin de diviser le tube d'échangeur de chaleur en au moins deux chambres (6, 7), la liaison (5) se composant de deux branches (10, 11) s'appliquant étroitement l'une contre l'autre, les branches (10, 11) présentant un pied (13) se prolongeant dans le côté large (1) avec un faible rayon de courbure (12) d'une première courbure et une tête (14) qui s'applique contre l'autre côté large (2) et peut être brasée à celui-ci, les branches (10, 11) étant formées à partir des deux bords longitudinaux façonnés (20, 21) de la bande de tôle et formant entre elles un angle (α), les branches (10, 11) ne s'appliquant pas l'une contre l'autre plus que jusqu'à la moitié de la distance totale (a) entre un côté large (1) et l'autre côté large (2),
    caractérisé en ce qu'
    une courbure supplémentaire (30) des branches (10, 11) est prévue, laquelle est réalisée de telle sorte que l'angle (α) entre les branches (10, 11) soit compris entre environ 45° et 100°.
  2. Tube plat pour échangeur de chaleur selon la revendication 1, caractérisé en ce que l'angle vaut environ 60° et les branches (10, 11) forment avec l'autre côté large un triangle isocèle.
  3. Tube plat pour échangeur de chaleur selon la revendication 1 ou 2, caractérisé en ce que la partie de la distance (a) au niveau de laquelle les branches (10, 11) s'appliquent l'une contre l'autre est d'environ 1/3 de la distance (a) entre les deux côtés larges (1, 2).
  4. Tube plat pour échangeur de chaleur selon les revendications 1, 2 ou 3, caractérisé en ce que l'extrémité de la branche respective (10, 11) formant la tête (14) des branches (10, 11) est recourbée dans la direction du côté étroit (3, 4) du tube pour échangeur de chaleur appartenant au bord longitudinal respectif (20, 21) et est supportée avec l'extrémité recourbée contre l'autre côté large (2).
  5. Tube plat pour échangeur de chaleur selon la revendication 4, caractérisé en ce que l'extrémité recourbée au niveau de la branche (10 ou 11) est arrondie.
  6. Tube plat pour échangeur de chaleur selon l'une quelconque des revendications précédentes, caractérisé en ce que le côté extérieur du tube pour échangeur de chaleur est plaqué par brasage.
  7. Tube plat pour échangeur de chaleur selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins une ou plusieurs liaisons supplémentaires (5) qui sont formées à partir de l'un des côtés larges (1 ou 2) et qui constituent un pli (50) du côté large (1, 2), sont prévues dans le tube pour échangeur de chaleur et dans le cas de plusieurs de ces plis (50), ceux-ci peuvent être réalisés en alternance à partir du côté large (1) et à partir de l'autre côté large (2).
EP04009052.4A 2003-06-21 2004-04-16 Tube plat pour échangeur de chaleur Expired - Lifetime EP1489372B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10328001A DE10328001A1 (de) 2003-06-21 2003-06-21 Flaches Wärmetauscherrohr
DE10328001 2003-06-21

Publications (2)

Publication Number Publication Date
EP1489372A1 EP1489372A1 (fr) 2004-12-22
EP1489372B1 true EP1489372B1 (fr) 2016-04-13

Family

ID=33394925

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04009052.4A Expired - Lifetime EP1489372B1 (fr) 2003-06-21 2004-04-16 Tube plat pour échangeur de chaleur

Country Status (3)

Country Link
US (1) US7665512B2 (fr)
EP (1) EP1489372B1 (fr)
DE (1) DE10328001A1 (fr)

Families Citing this family (27)

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Publication number Priority date Publication date Assignee Title
DE102004041101A1 (de) * 2004-08-24 2006-03-02 Behr Gmbh & Co. Kg Flachrohr für einen Wärmeübertrager, insbesondere für Kraftfahrzeuge und Verfahren zur Herstellung eines Flachrohres
US8434227B2 (en) 2006-01-19 2013-05-07 Modine Manufacturing Company Method of forming heat exchanger tubes
US8438728B2 (en) * 2006-01-19 2013-05-14 Modine Manufacturing Company Flat tube, flat tube heat exchanger, and method of manufacturing same
US7921559B2 (en) * 2006-01-19 2011-04-12 Modine Manufacturing Company Flat tube, flat tube heat exchanger, and method of manufacturing same
US8091621B2 (en) * 2006-01-19 2012-01-10 Modine Manufacturing Company Flat tube, flat tube heat exchanger, and method of manufacturing same
US8281489B2 (en) * 2006-01-19 2012-10-09 Modine Manufacturing Company Flat tube, flat tube heat exchanger, and method of manufacturing same
US20090014165A1 (en) * 2006-01-19 2009-01-15 Werner Zobel Flat tube, flat tube heat exchanger, and method of manufacturing same
US8191258B2 (en) * 2006-01-19 2012-06-05 Modine Manufacturing Company Flat tube, flat tube heat exchanger, and method of manufacturing same
EP1994351A2 (fr) * 2006-01-19 2008-11-26 Modine Manufacturing Company Tube plat, échangeur de chaleur à tube plat et procédé de fabrication de ceux-ci
US20090019696A1 (en) * 2006-01-19 2009-01-22 Werner Zobel Flat tube, flat tube heat exchanger, and method of manufacturing same
US8683690B2 (en) * 2006-01-19 2014-04-01 Modine Manufacturing Company Flat tube, flat tube heat exchanger, and method of manufacturing same
DE102006052581B4 (de) * 2006-11-08 2024-06-13 Innerio Heat Exchanger GmbH Flaches Wärmetauscherrohr und Herstellungsverfahren
DE102007004993A1 (de) * 2007-02-01 2008-08-07 Modine Manufacturing Co., Racine Herstellungsverfahren für Flachrohre und Walzenstraße
JP4297177B2 (ja) * 2007-04-03 2009-07-15 株式会社デンソー 熱交換器用チューブ
DE102007039292A1 (de) * 2007-08-20 2009-02-26 Behr Gmbh & Co. Kg Mehrkammer-Flachrohr, Wärmetauscher und Verwendung eines Wärmetauschers
FR2923002B1 (fr) * 2007-10-31 2015-12-11 Valeo Systemes Thermiques Tube pour echangeur thermique
DE102008007600A1 (de) * 2008-02-04 2009-08-06 Behr Gmbh & Co. Kg Mehrkammer-Flachrohr, Wärmetauscher und Verwendung eines Wärmetauschers
DE102008051422A1 (de) * 2008-10-11 2010-04-15 Modine Manufacturing Co., Racine Ganz-Metall-Wärmetauscher und Verfahren
JP5105266B2 (ja) 2010-06-02 2012-12-26 株式会社デンソー 回転角度検出装置
DE102010023384B4 (de) 2010-06-10 2014-08-28 Modine Manufacturing Co. Herstellungsverfahren, insbesondere für Rohre und Abreißvorrichtung
FR2962204B1 (fr) * 2010-06-30 2014-11-21 Valeo Systemes Thermiques Tube d'echangeur de chaleur, echangeur de chaleur comportant de tels tubes et procede d'obtention d'un tel tube.
DE102010031468A1 (de) * 2010-07-16 2012-01-19 Behr Gmbh & Co. Kg Fluidkanal für einen Wärmetauscher
US9453599B2 (en) * 2013-06-21 2016-09-27 Ford Global Technologies, Llc Bi-channel coolant tube having crossover channels to allow coolant interaction
CN108366665B (zh) * 2015-12-01 2020-08-21 高露洁-棕榄公司 口腔护理器具
EP3184948A1 (fr) * 2015-12-21 2017-06-28 Mahle International GmbH Corps de tube et procédé de production
EP3665428A4 (fr) * 2017-08-07 2021-05-05 Modine Manufacturing Company Tube d'échangeur de chaleur
LU101492B1 (en) 2019-11-25 2021-05-26 Ht Holding Luxembourg S A Flat heat exchanger tube

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JPS5490750U (fr) 1977-12-12 1979-06-27
US5579837A (en) 1995-11-15 1996-12-03 Ford Motor Company Heat exchanger tube and method of making the same
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JP2001170713A (ja) 1999-12-10 2001-06-26 Karutekku:Kk 管状体の製造方法及びロール成形機
JP2002130969A (ja) 2000-10-24 2002-05-09 Japan Climate Systems Corp 熱交換器用チューブ
US6513582B2 (en) 2000-07-11 2003-02-04 Delphi Technologies, Inc. Heat exchanger and fluid pipe therefor

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LU90919B1 (en) * 2002-05-14 2003-11-17 Delphi Tech Inc Method and tool for folding a metal strip

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JPS5490750U (fr) 1977-12-12 1979-06-27
US5579837A (en) 1995-11-15 1996-12-03 Ford Motor Company Heat exchanger tube and method of making the same
US5956846A (en) 1997-03-21 1999-09-28 Livernois Research & Development Co. Method and apparatus for controlled atmosphere brazing of unwelded tubes
US5890288A (en) 1997-08-21 1999-04-06 Ford Motor Company Method for making a heat exchanger tube
US5934365A (en) 1997-08-21 1999-08-10 Ford Motor Company Heat exchanger
EP1074807A2 (fr) 1999-08-02 2001-02-07 Ford Motor Company Tube plié pour échangeur de chaleur et sa méthode de fabrication
JP2001170713A (ja) 1999-12-10 2001-06-26 Karutekku:Kk 管状体の製造方法及びロール成形機
US6513582B2 (en) 2000-07-11 2003-02-04 Delphi Technologies, Inc. Heat exchanger and fluid pipe therefor
JP2002130969A (ja) 2000-10-24 2002-05-09 Japan Climate Systems Corp 熱交換器用チューブ

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Title
W. BEITZ ET AL: "Taschenbuch für den Maschinenbau, 20. Auflage", 2001, ISBN: 3-540-67777-1, pages: B38, B39, G50 - G53, XP055342435

Also Published As

Publication number Publication date
EP1489372A1 (fr) 2004-12-22
US7665512B2 (en) 2010-02-23
US20050006082A1 (en) 2005-01-13
DE10328001A1 (de) 2005-01-05

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