EP0811820A1 - Flachrohr mit einem in der Mitte befindlichen Distanzhalter für Wärmetauscher - Google Patents

Flachrohr mit einem in der Mitte befindlichen Distanzhalter für Wärmetauscher Download PDF

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Publication number
EP0811820A1
EP0811820A1 EP97108742A EP97108742A EP0811820A1 EP 0811820 A1 EP0811820 A1 EP 0811820A1 EP 97108742 A EP97108742 A EP 97108742A EP 97108742 A EP97108742 A EP 97108742A EP 0811820 A1 EP0811820 A1 EP 0811820A1
Authority
EP
European Patent Office
Prior art keywords
tube
strip
fold
region
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.)
Granted
Application number
EP97108742A
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English (en)
French (fr)
Other versions
EP0811820B1 (de
Inventor
Carlos Martins
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.)
Valeo Thermique Moteur SA
Original Assignee
Valeo Thermique Moteur SA
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 Valeo Thermique Moteur SA filed Critical Valeo Thermique Moteur SA
Publication of EP0811820A1 publication Critical patent/EP0811820A1/de
Application granted granted Critical
Publication of EP0811820B1 publication Critical patent/EP0811820B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/06—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of metal tubes
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2225/00—Reinforcing means
    • F28F2225/04—Reinforcing means for conduits
    • 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 tube for the circulation of a fluid in a heat exchanger, in particular a radiator for cooling the drive motor of a motor vehicle, formed by folding, in its longitudinal direction, a strip of sheet of which a first face, defining the outer surface of the tube, is coated with a brazing material, this tube comprising first and second opposite main walls, substantially planar and parallel, connected together by two complementary walls so as to form a closed profile, the first main wall being formed from a median region of the width of the strip and the second main wall from two intermediate regions located on either side of the median region, which are substantially juxtaposed in the same plane, and two marginal regions of the strip, respectively adjacent to said intermediate regions, being folded back t these towards the inside of the tube and joined by brazing to the internal face of the middle region.
  • Such tubes are arranged in one or more rows, the tubes of the same row being mutually aligned parallel to their thickness, that is to say perpendicular to their main walls.
  • Each tube connects two fluid boxes together so as to allow the circulation of the fluid in one or more passes between the fluid boxes, the fluid thus exchanging heat with an air flow passing through the bundle of tubes and sweeping the surface outside of each tube.
  • the marginal regions of the strip have a width corresponding to the internal thickness of the tube and are bent at right angles to the intermediate regions to rest by their free edge on the internal face of the first main wall. These marginal regions, whose coatings of brazing material are then turned towards each other, are joined by brazing, to each other and to the first main wall, forming a spacer for reinforcing the tube and dividing the interior of the latter into two separate parallel conduits.
  • Figure 3 partially shows a tube in which one 114 of the marginal regions, bent at right angles to the adjacent region 112 of the strip, normally rests on the inner face of the first main wall 107, while the other, shorter, marginal region 113 remains at a distance from the wall 107.
  • the region 113 therefore does not participate in the strengthening of the tube.
  • it is difficult to ensure the coplanarity of the adjacent region 111 with the region 112 to form the second main wall of the tube.
  • the region 113 has the desired length, but the region 114 is too long and is positioned obliquely with respect to the main walls 107 and 111, 112.
  • the regions 113 and 114 are therefore not mutually contiguous and do not provide not the desired reinforcement of the tube. Leakage can also occur.
  • the object of the invention is to remedy these drawbacks, and to allow the production of a tube of determined size from a strip whose width can vary to a certain extent, and correspondingly to produce tubes of some size. little different from the same bandwidth.
  • the invention relates in particular to a tube of the kind defined in the introduction, and provides that the first main wall is formed by two zones of the median region located laterally on either side of a fold turned towards the inside of the tube, on which are supported by said marginal regions which are folded substantially at 180 °.
  • Figure 1 shows in cross section a flat tube 1 produced by bending the sheet metal strip 2 shown in Figure 5.
  • the face of the strip 2 facing down in Figure 5 carries a coating 3 of a material of soldering, which covers the entire periphery of the cross section of the tube 1.
  • Halfway down the strip 2 is formed a fold 4 which penetrates inside the tube. In cross section, this fold has a U-shape whose branches 5 and 6 are mutually joined and are folded at right angles to the adjacent regions 7 and 8 of the strip.
  • the regions 7 and 8 extend in the same plane to form a first main wall of the tube. They are connected respectively by regions 9 and 10, curved in half-cylinders, to other flat regions 11 and 12 which form the second main wall of the tube, parallel to the wall 7, 8.
  • the periphery of the tube is formed by the two main faces 7, 8 and 11, 12, flat and parallel, and by two curved complementary walls 9 and 10.
  • the marginal regions 13 and 14 of the strip are bent 180 ° relative to these inside the tube, thus forming, with these latter regions, respective U-shaped profiles, the bottoms 15 and 16 are in mutual contact by the covering 3 and each in contact with the bottom 17 of the U formed by the fold 4.
  • a cavity 18 of curvilinear triangular cross section which will be filled with material of soldering during the fusion of this one.
  • the melting of the brazing material covering the faces of the arms 5 and 6 facing one another will stiffen the fold 4. This gives excellent resistance to the spacer formed by the fold 4 and by the marginal regions 13 and 14, and perfect sealing of the tube at the connection between the three bottoms.
  • the fact that the sealing zone is adjacent to the outside of the tube also facilitates the brazing preparation operations (degreasing, fluxing, steaming), as well as the appearance control before brazing.
  • the tube of FIG. 1 is rigorously symmetrical with respect to the plane P passing on the one hand between the branches 5 and 6, on the other hand between the bottoms 15 and 16.
  • This symmetry is broken, in the case of the tube of FIG. 2, by the fact that the marginal region 14 is wider than the marginal region 13, the starting strip itself being a little wider than that shown in FIG. 5. It can be seen that this increase in width in no way affects the external dimensions of the finished tube, nor the relative shape and position of the three funds of U 15, 16 and 17 and therefore the quality of their connection.
  • the fold 4 is first formed by triple longitudinal folding of the strip.
  • the marginal regions 13 and 14 are then folded 180 ° relative to the adjacent regions 11 and 12, according to the arrows F1 in FIG. 5.
  • the regions 11 and 12 are raised by rotating them 180 ° relative to the regions 7 and 8 respectively, according to the arrows F2 of FIG. 5, by rolling regions 9 and 10 in half-cylinders.
  • the folding of the marginal regions 13 and 14 is carried out in such a way that the bottoms 15 and 16 are formed at a distance predetermined plane P defined by the branches 5 and 6, whereby any excess or defect in the width of the strip 2 affects the width of the marginal regions 13 and 14 and not on the outer dimensions of the tube.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
EP97108742A 1996-06-05 1997-06-02 Flachrohr mit einem in der Mitte befindlichen Distanzhalter für Wärmetauscher Expired - Lifetime EP0811820B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9606932 1996-06-05
FR9606932A FR2749648B1 (fr) 1996-06-05 1996-06-05 Tube plat a entretoise mediane pour echangeur de chaleur

Publications (2)

Publication Number Publication Date
EP0811820A1 true EP0811820A1 (de) 1997-12-10
EP0811820B1 EP0811820B1 (de) 2000-12-06

Family

ID=9492739

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97108742A Expired - Lifetime EP0811820B1 (de) 1996-06-05 1997-06-02 Flachrohr mit einem in der Mitte befindlichen Distanzhalter für Wärmetauscher

Country Status (8)

Country Link
US (1) US5765634A (de)
EP (1) EP0811820B1 (de)
KR (1) KR980000694A (de)
CN (1) CN1176376A (de)
AR (1) AR007390A1 (de)
BR (1) BR9703474A (de)
DE (1) DE69703638T2 (de)
FR (1) FR2749648B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2780153A1 (fr) * 1998-06-23 1999-12-24 Valeo Thermique Moteur Sa Echangeur de chaleur a tubes plats, en particulier pour vehicule automobile
FR2786559A1 (fr) * 1998-11-30 2000-06-02 Valeo Thermique Moteur Sa Echangeur de chaleur depourvu d'ailettes, en particulier pour vehicule automobile
FR2810729A1 (fr) * 2000-06-22 2001-12-28 Valeo Thermique Moteur Sa Tube brase pour un echangeur de chaleur, procede de fabrication et echangeur
FR2986313A1 (fr) * 2012-01-31 2013-08-02 Valeo Systemes Thermiques Tube d'echangeur thermique, echangeur thermique et procede d'obtention correspondant

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0884120B1 (de) * 1997-06-11 2004-09-01 Calsonic Kansei Corporation Verfahren und Vorrichtung zum Herstellen eines Wasserkastenrohres
DE19826881B4 (de) * 1998-06-17 2008-01-03 Behr Gmbh & Co. Kg Wärmeübertrager, insbesondere Verdampfer
EP0982095B1 (de) * 1998-08-25 2003-10-01 Calsonic Kansei Corporation Verfahren zum Herstellen von Rohren eines Wärmetauschers
FR2786558B1 (fr) * 1998-11-30 2001-02-02 Valeo Thermique Moteur Sa Tube plat pour echangeur de chaleur de largeur reduite
FR2787180B1 (fr) * 1998-12-11 2001-03-02 Valeo Thermique Moteur Sa Tube plie pour echangeur de chaleur et procede pour sa conformation
EP1022532A3 (de) 1999-01-19 2001-08-01 Calsonic Kansei Corporation Flachröhren für Wärmetauscher und Verfahren zu deren Herstellung
DE60019940T2 (de) * 1999-09-08 2006-02-16 Zexel Valeo Climate Control Corp. Wärmetauscherrohr und verfahren zur herstellung des wärmetauscherrohrs
GB2361301B (en) * 2000-03-16 2003-10-08 Denso Corp Self clamping groove in a seamed tube
GB0101697D0 (en) * 2001-01-23 2001-03-07 Emerson & Renwick Ltd Heat exchanger tube
US6530514B2 (en) * 2001-06-28 2003-03-11 Outokumpu Oyj Method of manufacturing heat transfer tubes
FR2832788B1 (fr) * 2001-11-26 2004-06-04 Valeo Climatisation Profils de tubes pour echangeur thermique
JP2004333023A (ja) * 2003-05-08 2004-11-25 Toyo Radiator Co Ltd アルミニューム製熱交換器用偏平チューブ
DE102004045018B4 (de) * 2003-09-30 2019-08-01 Mahle International Gmbh Verfahren zur Herstellung eines flachen Rohres für einen Wärmetauscher eines Kraftfahrzeugs, flaches Rohr, Verfahren zur Herstellung eines Wärmetauschers und Wärmetauscher
US7032808B2 (en) * 2003-10-06 2006-04-25 Outokumu Oyj Thermal spray application of brazing material for manufacture of heat transfer devices
US20060230617A1 (en) * 2005-04-13 2006-10-19 Kent Scott E Fabricated, brazed metal heat exchanger tube manufacture
JP4974327B2 (ja) * 2005-12-15 2012-07-11 株式会社デンソー 熱交換器用チューブの製造方法および熱交換器
DE102007031249A1 (de) * 2006-07-06 2008-01-10 Behr Gmbh & Co. Kg Flachrohr für einen Wärmeübertrager und Wärmeübertrager mit Flachrohren
DE102006054036A1 (de) * 2006-11-16 2008-05-21 Behr Gmbh & Co. Kg Flachrohr, insbesondere für einen Wärmetauscher
US8353335B2 (en) * 2007-02-10 2013-01-15 Modine Manufacturing Company Heat exchanger tube and method of forming the same
US20080302518A1 (en) * 2007-06-07 2008-12-11 Joseph Durdel Flat tube heat exchanger
DE102007039292A1 (de) * 2007-08-20 2009-02-26 Behr Gmbh & Co. Kg Mehrkammer-Flachrohr, Wärmetauscher und Verwendung eines Wärmetauschers
DE102008007597A1 (de) 2008-02-04 2009-08-06 Behr Gmbh & Co. Kg Herstellungsverfahren Mehrkammer-Flachrohr, Wärmetauscher und Verwendung eines Wärmetauschers
DE102008007601A1 (de) 2008-02-04 2009-08-06 Behr Gmbh & Co. Kg Mehrkammer-Flachrohr, Wärmetauscher und Verwendung eines Wärmetauschers
DE102008007610A1 (de) 2008-02-04 2009-08-06 Behr Gmbh & Co. Kg Mehrkammer-Flachrohr, Wärmetauscher und Verwendung eines Wärmetauschers
DE102008007612A1 (de) 2008-02-04 2009-08-06 Behr Gmbh & Co. Kg Mehrkammer-Flachrohr, Wärmetauscher und Verwendung eines Wärmetauschers
DE102008007587A1 (de) 2008-02-04 2009-08-06 Behr Gmbh & Co. Kg Mehrkammer-Flachrohr, Wärmetauscher und Verwendung eines Wärmetauschers
DE102008007600A1 (de) 2008-02-04 2009-08-06 Behr Gmbh & Co. Kg Mehrkammer-Flachrohr, Wärmetauscher und Verwendung eines Wärmetauschers
DE102008007611A1 (de) 2008-02-04 2009-08-06 Behr Gmbh & Co. Kg Mehrkammer-Flachrohr, Wärmetauscher und Verwendung eines Wärmetauschers
US8485093B2 (en) * 2010-07-07 2013-07-16 The D.S. Brown Company Cylindrical heat application apparatus
DE102010031468A1 (de) * 2010-07-16 2012-01-19 Behr Gmbh & Co. Kg Fluidkanal für einen Wärmetauscher
US20130230735A1 (en) * 2010-08-31 2013-09-05 Hans Keife Method for producing a channel arrangement, a channel arrangement, use of a channel arrangement and a metal profile
US8661676B2 (en) * 2011-03-29 2014-03-04 Frank G. McNulty Rotary die forming process and apparatus for fabricating multi-port tubes
FR2973490B1 (fr) * 2011-03-31 2018-05-18 Valeo Systemes Thermiques Tube pour echangeur thermique, echangeur thermique et procede d'obtention correspondants
GB2509762B (en) * 2013-01-14 2015-02-04 Halla Visteon Climate Control Tube for Heat Exchanger
US10139172B2 (en) * 2014-08-28 2018-11-27 Mahle International Gmbh Heat exchanger fin retention feature
FR3037643B1 (fr) * 2015-06-22 2019-07-12 Valeo Systemes Thermiques Echangeur de chaleur et procede de fabrication associe
EP3665428A4 (de) * 2017-08-07 2021-05-05 Modine Manufacturing Company Wärmetauscherröhre
CN110966886A (zh) * 2018-09-28 2020-04-07 格朗吉斯铝业（上海）有限公司 单片式折叠扁管以及热交换器

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2261819A1 (de) * 1974-02-21 1975-09-19 Graenges Essem Ab
EP0302232A1 (de) * 1987-08-01 1989-02-08 Behr GmbH & Co. Flachrohr für einen Wärmetauscher

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2245102A (en) * 1931-08-14 1941-06-10 Flakice Corp Method of manufacturing heat exchange apparatus
US2655181A (en) * 1949-09-14 1953-10-13 Mccord Corp Tube construction
DE3610618A1 (de) * 1986-03-29 1987-10-01 Mtu Muenchen Gmbh Profilroehrchen mit elliptischem oder lanzettfoermigem querschnitt fuer roehrchenwaermetauscher und verfahren zur herstellung
US5186250A (en) * 1990-05-11 1993-02-16 Showa Aluminum Kabushiki Kaisha Tube for heat exchangers and a method for manufacturing the tube
US5186251A (en) * 1992-06-01 1993-02-16 General Motors Corporation Roll formed heat exchanger tubing with double row flow passes
GB2268260A (en) * 1992-06-24 1994-01-05 Llanelli Radiators Ltd Heat exchange tubes formed from a unitary portion of sheet or strip material
JP2792405B2 (ja) * 1992-08-26 1998-09-03 株式会社デンソー 熱交換器
US5511613A (en) * 1994-12-12 1996-04-30 Hudson Products Corporation Elongated heat exchanger tubes having internal stiffening structure
JPH08200977A (ja) * 1995-01-27 1996-08-09 Zexel Corp 熱交換器用偏平チューブ及びその製造方法
US5579837A (en) * 1995-11-15 1996-12-03 Ford Motor Company Heat exchanger tube and method of making the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2261819A1 (de) * 1974-02-21 1975-09-19 Graenges Essem Ab
EP0302232A1 (de) * 1987-08-01 1989-02-08 Behr GmbH & Co. Flachrohr für einen Wärmetauscher

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2780153A1 (fr) * 1998-06-23 1999-12-24 Valeo Thermique Moteur Sa Echangeur de chaleur a tubes plats, en particulier pour vehicule automobile
FR2786559A1 (fr) * 1998-11-30 2000-06-02 Valeo Thermique Moteur Sa Echangeur de chaleur depourvu d'ailettes, en particulier pour vehicule automobile
FR2810729A1 (fr) * 2000-06-22 2001-12-28 Valeo Thermique Moteur Sa Tube brase pour un echangeur de chaleur, procede de fabrication et echangeur
US6494254B2 (en) 2000-06-22 2002-12-17 Valeo Thermique Moteur Brazed tube for a heat exchanger, method of manufacture and exchanger
FR2986313A1 (fr) * 2012-01-31 2013-08-02 Valeo Systemes Thermiques Tube d'echangeur thermique, echangeur thermique et procede d'obtention correspondant
WO2013113700A1 (fr) * 2012-01-31 2013-08-08 Valeo Systemes Thermiques Tube d'échangeur thermique, échangeur thermique et procédé d'obtention correspondant
US9975168B2 (en) 2012-01-31 2018-05-22 Valeo Systemes Thermiques Heat exchanger tube, heat exchanger and corresponding production method

Also Published As

Publication number Publication date
BR9703474A (pt) 1998-09-01
DE69703638D1 (de) 2001-01-11
KR980000694A (ko) 1998-03-30
FR2749648B1 (fr) 1998-09-04
EP0811820B1 (de) 2000-12-06
CN1176376A (zh) 1998-03-18
AR007390A1 (es) 1999-10-27
MX9704142A (es) 1998-06-28
US5765634A (en) 1998-06-16
FR2749648A1 (fr) 1997-12-12
DE69703638T2 (de) 2001-05-10

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