EP1570223B1 - Echangeur thermique - Google Patents

Echangeur thermique Download PDF

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Publication number
EP1570223B1
EP1570223B1 EP03788989A EP03788989A EP1570223B1 EP 1570223 B1 EP1570223 B1 EP 1570223B1 EP 03788989 A EP03788989 A EP 03788989A EP 03788989 A EP03788989 A EP 03788989A EP 1570223 B1 EP1570223 B1 EP 1570223B1
Authority
EP
European Patent Office
Prior art keywords
tube
heat exchanger
lateral area
area
accordance
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
EP03788989A
Other languages
German (de)
English (en)
Other versions
EP1570223A1 (fr
Inventor
Werner Helms
Markus Reck
Stefan Weise
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 EP1570223A1 publication Critical patent/EP1570223A1/fr
Application granted granted Critical
Publication of EP1570223B1 publication Critical patent/EP1570223B1/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
    • 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

Definitions

  • the present invention relates to a heat exchanger, in particular a charge air cooler for a motor vehicle.
  • the air to be supplied to the combustion can be compressed, for example with a turbocharger, before it is supplied to the combustion chambers of the internal combustion engine.
  • a turbocharger a heat exchanger designed as a charge air cooler is connected downstream, with which the compressed air can be cooled to an allowable temperature before its combustion.
  • An intercooler is for example in the DE 197 57 034 A1 described.
  • the hot air is introduced into a first collecting channel of the heat exchanger, where it is distributed and flows into flat tubes, which open into the collecting channel.
  • the flat tubes are side by side, and arranged with the long sides of their cross-section containing side surfaces parallel to each other and form a flow path, is passed through the cooling air.
  • cooling fins are arranged between the flat tubes, which effect an effective heat exchange between the flat tubes and the cooling air flow.
  • the flat tubes open into a second collecting channel, which supplies the incoming therein, cooled, compressed charge air combustion in the engine.
  • the tubes are usually inserted into openings of a tube plate and soldered fluid-tight. At any charge of compressed air, this solder joint is subject to high mechanical loads due to rapid pressure changes. Especially the narrow sides of flat tubes do not meet the increasing strength requirements, which may result in leaks especially in the sides of the tubesheet facing areas such pipe-ground connections.
  • the WO 02/04881 A1 describes a head piece for a condenser, which is formed from a tube plate and a box part.
  • the tube plate has tube insertion openings and is stiffened by longitudinal shoulders with the tube insertion openings intersecting the shoulders.
  • the object of the invention is to provide a heat exchanger, in particular a charge air cooler, are reduced in the mechanical loads of pipe-floor connections without additional expenditure of material.
  • a heat exchanger tubes which are adapted to be flowed through by a first medium and to be flowed around by a second medium, so that heat from the first to the second medium or vice versa transferable.
  • At least one collecting box communicating with the tubes comprises at least one tubesheet which has a substantially flat central region and at least one side region angled or rounded off from the central region.
  • the tube bottom preferably has two, in particular opposite, side regions, which are angled or rounded off from the central region.
  • In the central area are tube openings into which the tubes can be inserted to form the communicating connection with the collecting box.
  • a middle region of a tube plate is to be regarded as essentially flat if the tubesheet is largely flat in this region.
  • a tube bottom middle region with outlines of tube openings formed as so-called passages and / or with other minor deviations from a flatness is essentially planar in the context of the invention.
  • the tubesheet has passages which delimit the tube openings which according to the invention point out of the collection box. These passages serve to increase the contact area between the inserted tubes and the tubesheet, thereby enhancing the tube-to-floor connection.
  • the passage of the at least one pipe opening on or in the at least one side region is particularly advantageously lower than in the middle region of the pipe bottom. As a result, an attack surface for mechanical stresses originating from the side region is reduced at the tube-bottom connection, while a high stability of the tube-bottom connection in the middle region of the tube bottom is maintained.
  • the at least one side region of the tube bottom comprises one or more flat partial regions, so that the collecting container has a faceted shape. This allows a secure production with low manufacturing tolerances.
  • the at least one side region has a rounding with an approximately constant radius of curvature or a plurality of curves with different Curvature radii on.
  • a particularly good approximation to a semicircular cross section of the tube bottom is achieved.
  • an improved approach to a semicircular shape of the tube bottom cross-section is a continuous convex design of the at least one side region. Concave areas of strong deformation in the case of pressure loads are thereby avoided.
  • the heat exchanger is designed as a charge air cooler, which is particularly preferably used in motor vehicles.
  • the intercooler on two headers, of which a first for distribution and a second is provided for the collection of charge air.
  • each of the headers has exactly one tubesheet, which is provided with a series of tube openings. It is also advantageous to use a series of flat tubes with intermediate, in particular soldered, corrugated fins, as this achieves an increased heat transfer area.
  • the cooling medium is preferably air, although other cooling media such as water or coolant are conceivable.
  • FIG. 1a shows a section of a heat exchanger 10 in a perspective view.
  • a collecting box 20 for distributing a first medium consists of a tube sheet 30 and a box lid 40, which are welded together at a common contact surface 50.
  • the box lid 40 is here inserted into the tube plate 30.
  • a tube sheet and a box lid by soldering, bonding or positively connected with each other or in one piece or in one piece, that is, for example, consisting of a formed plate formed.
  • the tube plate 30 has a tube opening 60 whose edge 70 is formed as a so-called passage in the collection box inside.
  • a substantially rectangular flat tube 80 is inserted into the tube opening 60 and soldered or welded to the tube sheet 30.
  • corrugated fins which are adjacent on both sides of the flat tube 80 and are soldered to the latter, so that a heat transfer from the first to the tube 80 and the ribs flowing around the second medium or from the second to the first medium is increased.
  • the heat exchanger includes 10 a whole series of alternating flat tubes and corrugated fins, which form a so-called tube-rib block.
  • the tube 80 is inserted into the tube opening 60 so far that an upper edge region 90 of the tube 80 extends beyond the passage 70.
  • good utilization of the tube 80 facing, non-visible inner surface of the passage 70 is guaranteed as a contact surface for a pipe-floor connection.- This serves, for example, a dense soldering.
  • the supernatant of the tube 80 is to be kept as low as possible over the tube plate 30. For this reason, the tube opening 60 is located in a substantially planar central region 100 of the tube bottom 30.
  • the collecting box 20 If the collecting box 20 is charged with the first medium, the collecting box 20 under certain circumstances deforms such that its cross-sectional shape approaches a circular shape.
  • side regions 110, 120 of the tube bottom 30 are angled relative to the central region 100. This results in a lower deformation of the tube plate 30 under pressure loading of the collecting tank 20 in these side regions 110, 120.
  • the mechanically most stressed in such pressure-induced deformations end faces 130; 140 of the flat tube 80 are relieved by the fact that the tube opening 60 and thus also the tube 80 extend into the side regions 110, 120 of the tube bottom 30.
  • FIG. 1 c shows a cross section of the heat exchanger section from FIG. 1 a or FIG. 1 b, wherein the sectional plane extends transversely through the tube 80.
  • FIG. 2a, 2b and 2c an embodiment of the heat exchanger 210 according to the invention is shown analogous to Fig. 1a, 1b and 1c, which differs from the previous embodiment essentially in that the passage 270 is formed aus mar thed from the collecting box 220.
  • the tube sheet 230 is welded to a box lid 240 at the common interface 250.
  • a substantially rectangular flat tube 280 is inserted into the tube opening 260 with the passage 270 and soldered or welded to the tube sheet 230.
  • the passage 270 out of the collection box 220 In order to reduce a pressure drop of a first medium flowing through the header 220 and among others through the tube 280 via the heat exchanger, the passage 270 out of the collection box 220, so that the tube 280 stuck in the passage 270 is not above the tube sheet 230 in whose substantially planar central region 300 protrudes.
  • Side regions 310, 320 of the tube bottom 230 are angled relative to the central region 300 in order to reduce deformation of the header tank 220 under pressure, at least in the side regions 310, 320.
  • the tube opening 260 and thus the tube 280 extend to the side regions 310, 320, which is illustrated particularly clearly in FIG. 2c.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Supercharger (AREA)
  • Power Steering Mechanism (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Claims (7)

  1. Échangeur de chaleur avec des tubes et au moins un caisson collecteur, le caisson collecteur présentant au moins un fond tubulaire (230) et une extrémité de caisson (240), le fond tubulaire (230) présentant une zone médiane (300) sensiblement plane, avec des ouvertures tubulaires (260) dans lesquelles les tubes sont susceptibles d'être enfichés, et au moins une zone latérale (310), coudée ou arrondie par rapport à la zone centrale, sachant qu'au moins une ouverture de tube (260) arrive dans la au moins une zone latérale (310), la au moins une ouverture de tube (260) étant délimitée par un passage (270), caractérisé en ce que le passage (270) ressort du au moins un caisson collecteur, et en ce que le fond tubulaire (230), dans la zone de la surface de contact (250) commune du passage (270), entre le fond tubulaire (230) et le couvercle de caisson (240) - zone latérale (310) - présente une section transversale en forme de s.
  2. Échangeur de chaleur selon la revendication 1, caractérisé en ce que la au moins une zone latérale (310) présente au moins une zone partielle plane.
  3. Échangeur de chaleur selon la revendication 1 ou 2, caractérisé en ce que la au moins une zone latérale (310) présente un arrondi ayant un rayon de courbure à peu près constant.
  4. Échangeur de chaleur selon la revendication 3, caractérisé en ce que la au moins une zone latérale (310) présente plusieurs arrondis ayant des rayons de courbure différents.
  5. Échangeur de chaleur selon l'une des revendications 1 à 4, caractérisé en ce que la au moins une zone latérale (310) est de forme convexe.
  6. Échangeur de chaleur selon l'une des revendications 1 à 5, caractérisé en ce que le passage (270), sur ou dans au moins une zone latérale (310) du fond tubulaire, est plus bas que dans la zone centrale du fond tubulaire.
  7. Refroidisseur d'air de suralimentation, en particulier pour un véhicule automobile, caractérisé par les propriétés d'une des revendications précédentes.
EP03788989A 2002-12-04 2003-10-31 Echangeur thermique Expired - Lifetime EP1570223B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10256869A DE10256869A1 (de) 2002-12-04 2002-12-04 Wärmeübertrager
DE10256869 2002-12-04
PCT/EP2003/012138 WO2004051175A1 (fr) 2002-12-04 2003-10-31 Echangeur thermique

Publications (2)

Publication Number Publication Date
EP1570223A1 EP1570223A1 (fr) 2005-09-07
EP1570223B1 true EP1570223B1 (fr) 2007-06-13

Family

ID=32336007

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03788989A Expired - Lifetime EP1570223B1 (fr) 2002-12-04 2003-10-31 Echangeur thermique

Country Status (9)

Country Link
US (1) US7156164B2 (fr)
EP (1) EP1570223B1 (fr)
JP (1) JP2006509177A (fr)
CN (1) CN100390492C (fr)
AT (1) ATE364827T1 (fr)
AU (1) AU2003293643A1 (fr)
BR (1) BR0307932A (fr)
DE (2) DE10256869A1 (fr)
WO (1) WO2004051175A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7413006B2 (en) * 2006-04-06 2008-08-19 Modine Manufacturing Company Header plate for use in a heat exchanger
DE202008011555U1 (de) * 2008-08-28 2010-01-07 Autokühler GmbH & Co. KG Sammelkasten für einen Ladeluftkühler
CN101832720B (zh) * 2010-04-24 2011-10-05 李宁辉 一种热交换用烟气管道
US8851157B2 (en) 2010-05-13 2014-10-07 Adams Thermal Systems, Inc. Partial reverse ferrule header for a heat exchanger
US20120018135A1 (en) * 2010-07-20 2012-01-26 Denso Marston Ltd. Header plate, a heat exchanger, a method of making a header plate and a method of making a heat exchanger
FR2973492B1 (fr) * 2011-03-31 2017-12-15 Valeo Systemes Thermiques Boite collectrice pour echangeur thermique notamment pour vehicule automobile, et echangeur thermique correspondant

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2196730B (en) * 1986-10-21 1991-06-26 Austin Rover Group A heat exchanger
JPH02109184U (fr) * 1989-02-17 1990-08-30
DE4130517B4 (de) * 1991-09-13 2005-12-01 Behr Gmbh & Co. Kg Anschlusskasten für einen Wärmetauscher, insbesondere für einen Kältemittelkondensator
US5307870A (en) * 1991-12-09 1994-05-03 Nippondenso Co., Ltd. Heat exchanger
DE4327213C2 (de) * 1993-08-13 1997-12-11 Ruecker Gmbh Rekuperativer Wärmetauscher, insbesondere Kühler für Kraftfahrzeuge
JPH0829089A (ja) * 1994-07-19 1996-02-02 Nippondenso Co Ltd 熱交換器およびそれを用いた空調装置
JPH10132487A (ja) * 1996-10-30 1998-05-22 Toyo Radiator Co Ltd 熱交換器用タンクおよび熱交換器の製造方法
DE19757034A1 (de) * 1997-12-20 1999-06-24 Behr Gmbh & Co Wärmetauscher, insbesondere Ladeluftkühler
GB0016604D0 (en) * 2000-07-07 2000-08-23 Llanelli Radiators Ltd Condenser headers
DE10114078A1 (de) * 2001-03-22 2002-09-26 Modine Mfg Co Wärmetauscher und Herstellungsverfahren

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
ATE364827T1 (de) 2007-07-15
AU2003293643A1 (en) 2004-06-23
US7156164B2 (en) 2007-01-02
DE10256869A1 (de) 2004-06-24
CN1720423A (zh) 2006-01-11
EP1570223A1 (fr) 2005-09-07
DE50307492D1 (de) 2007-07-26
WO2004051175A1 (fr) 2004-06-17
CN100390492C (zh) 2008-05-28
JP2006509177A (ja) 2006-03-16
US20050252648A1 (en) 2005-11-17
BR0307932A (pt) 2004-12-21
WO2004051175A8 (fr) 2004-08-19

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