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EP0102491A2 - Procédé pour joindre des pièces tubulaires emmanchées l'une dans l'autre et appareil pour exécuter ce procédé - Google Patents

Procédé pour joindre des pièces tubulaires emmanchées l'une dans l'autre et appareil pour exécuter ce procédé Download PDF

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Publication number
EP0102491A2
EP0102491A2 EP83107017A EP83107017A EP0102491A2 EP 0102491 A2 EP0102491 A2 EP 0102491A2 EP 83107017 A EP83107017 A EP 83107017A EP 83107017 A EP83107017 A EP 83107017A EP 0102491 A2 EP0102491 A2 EP 0102491A2
Authority
EP
European Patent Office
Prior art keywords
pressing element
parts
pressing
opening
tubular
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
EP83107017A
Other languages
German (de)
English (en)
Other versions
EP0102491B1 (fr
EP0102491A3 (en
Inventor
Bohumil Humpolik
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 EP0102491A2 publication Critical patent/EP0102491A2/fr
Publication of EP0102491A3 publication Critical patent/EP0102491A3/de
Application granted granted Critical
Publication of EP0102491B1 publication Critical patent/EP0102491B1/fr
Expired 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
    • F28F9/04—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
    • 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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
    • 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
    • Y10T29/49373—Tube joint and tube plate structure
    • 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
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49909—Securing cup or tube between axially extending concentric annuli
    • Y10T29/49913—Securing cup or tube between axially extending concentric annuli by constricting outer annulus
    • 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
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49925—Inward deformation of aperture or hollow body wall
    • Y10T29/49934—Inward deformation of aperture or hollow body wall by axially applying force

Definitions

  • the invention relates to a method for connecting nested tubular parts of a heat exchanger of the type mentioned in the preamble of claim 1 and to a tool for performing this method.
  • a method for connecting nested pipes in which the telescopically nested pipes are elastically deformed by means of a press ring in such a way that a sealing pressure acting in the radial direction results between the nested pipe ends in the area of the press ring.
  • the press ring has an opening, the diameter of which is at least partially less than the diameter of the outer tubular part and is sufficiently strong to elastically deform the pipe ends radially inwards. If the press ring is loosened, the pipe ends resiliently assume their original shape after the deformation and are thereby loosened from each other again.
  • the invention makes it possible to connect nested tubular parts of a heat exchanger, in particular the ends of heat exchanger tubes with connecting pieces of a base plate or a connection box (e.g. water box or refrigerant distribution and collecting box of an evaporator) in a simple manner, with a large number of pipe connections simultaneously can be produced and the pressing elements are reusable.
  • a connection box e.g. water box or refrigerant distribution and collecting box of an evaporator
  • the pressing element is preferably made in two parts and, in the open state, is moved radially or tangentially in an area adjacent to the connection point over one of the pipes, then closed and locked and, after the pipe connection has been made, unlocked and demolded in the opposite direction.
  • the distance between two ferromagnetic lead Verdam p large enough to be introduced to the presser members for each pipe joint at the same time it is desirable to produce all the pipe connections of a row of tubes simultaneously. If the distance between two heat exchanger tubes is very small, it is proposed that first every second tube connection of a tube row in a first operation and then the intermediate tube connection of the same row is made in a second operation.
  • the object of creating a tool for carrying out the method according to the invention is achieved by the characterizing features of claim 5.
  • means are preferably provided for locking the pressing element in the closed position.
  • the two parts of the pressing element must be movable relative to one another for inserting or removing the tool, with the possibility of arranging the parts of the pressing element so as to be pivotable or longitudinally and transversely displaceable.
  • the means for locking the pressing elements generally consist of punches which are arranged like a comb and each grip between two pressing elements and thus wedge two adjacent pressing elements against one another.
  • Another arrangement of the pressing elements and locking means consists in that the pressing elements are arranged in a scissor-like manner, with the opening of the pressing element on one side of the fulcrum and the opening on the other side of the Pivot operating lever are arranged.
  • the locking means are designed as rotatable cams which act on the actuating levers.
  • the tool according to the invention can be designed differently depending on the type of heat exchanger, the pressing elements being able to have openings of circular cross-section or the opening cross-section being elliptical or oval for heat exchangers with elliptical or oval tubes.
  • the pressing elements To convert the tool to the respective heat exchanger type, only the pressing elements with the required opening cross-section must therefore be replaced; otherwise the arrangement remains unchanged.
  • the opening of the pressing element In order to achieve a uniform deformation of the tubes and self-centering when the pressing elements are axially displaced over the tubular parts, the opening of the pressing element has two axially successive conical sections of the same direction with different opening angles.
  • the parts 4 and 5 of the pressing element 6 are in the closed state of the pressing element, which results in a conical opening 9 in the pressing element 6.
  • the conical opening 9 On the side facing the tipped end 3, the conical opening 9 has a cone 10 with a larger opening angle, which is used for simple centering of the tubes in the pressing element.
  • Arrows 8 indicate the relative movement of the pressing element with respect to the tubes after the parts 4 and 5 of the pressing element 6 have been closed.
  • the diameter of the conical opening 9 on the side facing away from the tube 1 is smaller than the outer diameter of the end 3 that is topped.
  • the parts 4 and 5 of the pressing element are moved in the direction of arrows 11, ie radially outwards, after the pipe connection has been made, ie. H. the pressing element 6 is opened and can be removed.
  • FIG. 5 shows a pressing element 6, which consists of two parts 4 and 5 and has a conical opening 9, through the center of which the parting plane of the pressing element 6 runs.
  • FIG. 6 shows a pressing element 6 'for pipe connections with an elliptical cross section, the pressing element 6' consisting of parts 4 'and 5' and the dividing plane running along the main axis of the opening 9 'which is elliptical in cross section and conical in the axial direction.
  • FIG. 7 shows the front view of a pressing element 6 with a conical opening 9 and a starting cone 10.
  • a part 4 of the pressing element 6 has in the division plane a projection 16 directed towards the other part 5, which engages in a corresponding recess 17 of the part 5 and thus forms a positive connection in the direction of the vertical axis of the pressing element 6.
  • the parts 4 and 5 of the pressing element 6 in the closed state have no deviation in the direction of the vertical axis and thus the conical opening 9 is always formed exactly.
  • Figure 8 shows a pipe socket of a floor, on which a sculpted end 3 of a pipe 1 is inserted.
  • a plurality of projections 14 running in the circumferential direction are provided on the lateral surface of the pipe socket 12, between which grooves 15 are formed. This is located between the bottom 13 and the bulb end 3 of the tube 1 Pressing element 6, the parts 4 and 5 of which are already closed and surround the pipe socket 12 in a ring shape.
  • FIG. 9 shows the arrangement according to FIG. 8 in the state after the pressing element 6 has been axially displaced.
  • Displacement a deformation of the tulip end 3 radially inwards. Due to the radial deformation, the material of the end 3 topped up partially squeezes into the grooves 15, resulting in a positive connection of the pipe socket 12 with the pipe 1.
  • FIG. 1o the top view of a heat exchanger 18 is shown, which comprises two rows of tubes 19 and 2o.
  • the telescopically nested tubes 1 and 2 are shown.
  • the tool for producing the pipe connections comprises a plurality of pressing elements 6, the number of pressing elements corresponding exactly to half the number of pipes in a row of pipes and the arrangement being such that between two pipes to which a pressing element is associated there is a pipe without a pressing element located.
  • Each of the pressing elements 6 has two parts 4 and 5, which are pivotably mounted on a pin 21 relative to one another and are in their open position in the illustration according to FIG.
  • the parts 4 and 5 each have a half opening 9. Between two pressing elements 6 there is in each case a punch 22 in the disengaged position, whereby the parts 4 and 5 of the pressing elements 6 can be pivoted apart. In this position, the pressing elements can be moved to the pipes to be connected and can also be removed after the connection has been made.
  • spreading springs can be provided which load the parts 4 and 5 in the opening direction of the pressing element 6.
  • FIG. 11 shows a heat exchanger 18 according to FIG. 10, but the pressing elements 6 in the closed state, ie. H. in the position in which the production of the pipe connections is made possible.
  • the pressing elements 6 are closed and kept closed during the production of the pipe connections by the punches 22 which are moved between the pressing elements 6 and which ensure that the pivotable parts 4 and 5 of the pressing elements 6 are locked.
  • the punches 22 have recesses 23 which are provided for gripping the pipes 19 located between two pressing elements 6.
  • FIG. 12 shows an embodiment variant of FIG. 11, again showing a heat exchanger 18 'in plan view.
  • the heat exchanger has a number of tube rows 19, 24, 25, each of the tube rows having an odd number of tubes.
  • Each tube 24 of the inner row of tubes is connected to a tube 25 of the subsequent row of tubes by a pipe bend 26, wherein the pipes 24 and 25 with the pipe bends 26, for example by soldering or by another of the be known procedures are connected.
  • the pipe connection of the pipes 19 of the edge row are produced by the method according to the invention and already described above.
  • Figure 12 shows the pressing elements 6 in the closed state with stamps 22 'in the locking position of the pressing elements.
  • FIG. 11 in the heat exchanger shown in FIG. 12 there is enough space between two adjacent tubes 19 in order to be able to move the pressing elements 6 of two adjacent tubes in the open state, so that with this arrangement all tube connections of a row of tubes (19) can be produced in one operation can.
  • FIG. 13 shows the section along the line XIII-XIII in FIG. 12.
  • a part of an evaporator block 18 ' is shown on the right-hand side in FIG. 13, from which the ends of the tubes 19 and 24 protrude.
  • the end of the tube 24 is connected to an elbow 26.
  • a connection piece 12 of a refrigerant distribution box 28 is inserted into the end of the tube 19 that is tapped.
  • the rams 22 'arranged in the manner of a comb are arranged so as to be displaceable in the longitudinal direction of the pressing elements.
  • the two parts 4 and 5 of the pressing element 6 enclose the connecting piece 12, the diameter of which is somewhat smaller than the smallest diameter of the conical bore 9 of the pressing element 6.
  • XII-XII indicates the section line according to which the view in FIG. 12 is shown.
  • Figure 14 shows the top view of a heat exchanger 18 with two rows of tubes 19 and 2 0th According to the number of tubes in a row of tubes, pressing elements 6 * are provided, each consisting of parts 4 * and 5 * .
  • parts 4 * and 5 * In the parting plane of the pressing elements 6 * there is in each case one half of a conical opening 9 * which corresponds to the openings 9 already described above.
  • part 5 * In the parting plane, part 5 * has a projection 3o, whereas part 4 * has a recess 31, the contour of which corresponds exactly to the projection 3o.
  • Projection 3o and recess 31 are arranged so that they interlock positively when the parts 4 * and 5 * form the conical opening 9 * when the pressing elements 6 * are closed.
  • FIG. 14 shows the pressing elements 6 * in the open state, ie in the position in which the tool can be inserted into the row of pipes or can be removed from the mold after the pipe connections have been made.
  • FIG. 15 shows the arrangement according to FIG. 14 with pressing elements 6 * in the closed position . It can be seen from this that in this position the projection 3o lies completely in the recess 31 and thus the parts 4 * and 5 * interlock positively.
  • the pressing elements 6 * form the conical openings 9 * , with which the connecting pipes are tightly enclosed.
  • FIG. 16 shows a heat exchanger 18 which comprises two rows of pipes 19 and 20.
  • the pressing elements 6 consist of scissor-shaped parts 4 and 5 which are pivotally mounted about a pin 21. On one side of the pivot point formed by the pin 21, the parts 4 and 5 each have one half of the conical opening 9. On the other side of the fulcrum, the parts 4 and 5 of the pressing elements 6 are extended as actuating levers 37 and 38, which interact with rotatable cams 32.
  • the rotatable cam 32 are arranged in pairs on a shaft 33 opposite to that the pressure elements 6 are brought from the Schhmangna in the open position in each case by an angular rotation of 0 ° 9.
  • FIG. 16 shows the pressing elements 6 in the open state
  • FIG. 17 shows the arrangement in the closed state. It can be seen that the cams 32 are rotated by 90 ° and thus cause the pressing elements 6 to be tightened. Since two opposing cams 32 are arranged on a shaft 33, the two cams 32 of a shaft 33 act on a lever 37 of a pressing element 6 and on a lever 38 of the next pressing element 6. Thus, the rotatable cams 32 not only make the individual parts 4 and 5 of the pressing elements 6 clamped, but also clamped two successive pressing elements 6 against each other.
  • FIG. 18 shows how two pipe sockets, which cannot be telescoped, for example because of their wall thickness, or in which one ent speaking plastic deformation is not possible due to the material properties, can be connected by the inventive method.
  • FIG. 18 shows two pipe sockets 34 and 35 which abut each other.
  • the pipe sockets 34 and 35 like the pipe socket 12 in FIGS. 8 and 9, have grooves 15 running in the circumferential direction on their circumferential surfaces.
  • a connecting pipe 36 is pushed on the one hand over the pipe socket 34 and on the other hand over the pipe socket 35. With the pressing element consisting of parts 4 and 5, the connecting tube 36 has been plastically deformed radially inward and has been squeezed into the grooves 15 in the process.

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)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Automatic Assembly (AREA)
EP83107017A 1982-08-31 1983-07-18 Procédé pour joindre des pièces tubulaires emmanchées l'une dans l'autre et appareil pour exécuter ce procédé Expired EP0102491B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3232297A DE3232297C2 (de) 1982-08-31 1982-08-31 Verfahren zum Verbinden von ineinandergesteckten rohrförmigen Teilen eines Wärmetauschers und Werkzeug zur Durchführung des Verfahrens
DE3232297 1982-08-31

Publications (3)

Publication Number Publication Date
EP0102491A2 true EP0102491A2 (fr) 1984-03-14
EP0102491A3 EP0102491A3 (en) 1985-05-15
EP0102491B1 EP0102491B1 (fr) 1988-04-13

Family

ID=6172107

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83107017A Expired EP0102491B1 (fr) 1982-08-31 1983-07-18 Procédé pour joindre des pièces tubulaires emmanchées l'une dans l'autre et appareil pour exécuter ce procédé

Country Status (7)

Country Link
US (1) US4574444A (fr)
EP (1) EP0102491B1 (fr)
JP (1) JPS5950928A (fr)
BR (1) BR8304601A (fr)
DE (2) DE3232297C2 (fr)
ES (2) ES8403758A1 (fr)
MX (1) MX156982A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2553316A1 (fr) * 1983-10-14 1985-04-19 Huetoetechnika Ipari Szoevetke Dispositif de fixation de plaques ou lames d'echangeur de chaleur sur des tubes porteurs
DE4325427A1 (de) * 1993-07-29 1995-02-02 Behr Gmbh & Co Wärmetauscher, insbesondere Kraftfahrzeugkühler
DE19546917A1 (de) * 1994-12-22 1996-06-27 Valeo Climatisation Wärmetauscher mit zusammengesteckten Rohrelementen, insbesondere für Kraftfahrzeuge, und Herstellungsverfahren
EP1941955A1 (fr) * 2005-10-28 2008-07-09 Toyota Jidosha Kabushiki Kaisha Procede de correction d'un tube metallique et de correction d'une matrice de presse a metaux

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DE3908266A1 (de) * 1989-03-14 1990-09-20 Autokuehler Gmbh & Co Kg Waermeaustauscher und verfahren zur fluessigkeitsdichten befestigung einer bodenplatte an einem waermetauschernetz
US5544406A (en) * 1994-04-26 1996-08-13 Universal Enterprises, Inc. Tube fitting assembly method
US5707087A (en) * 1994-04-26 1998-01-13 Universal Enterprises, Inc. Tube fitting
US5592729A (en) * 1994-08-12 1997-01-14 Morton International, Inc. Method of assembling an inflatable cushion with a reaction housing in an inflatable restraint system
JP2002364946A (ja) * 2001-06-07 2002-12-18 Sanoh Industrial Co Ltd 強制空冷用コンデンサ
DE20207313U1 (de) * 2002-05-10 2003-09-18 Franz Viegener II GmbH & Co. KG, 57439 Attendorn Verbindungsstück und Verbindungsanordnung
DE102005014940B4 (de) * 2005-04-01 2008-07-24 Viega Gmbh & Co. Kg Fitting und Verfahren zur Herstellung eines Fittings
JP4797998B2 (ja) * 2006-02-17 2011-10-19 株式会社デンソー 熱交換器の配管継手構造及び熱交換器の配管組み付け方法
DE102007045855A1 (de) * 2007-09-26 2009-04-09 Eisenbau Krämer mbH Verfahren zur Herstellung von Rohr-in-Rohr-Systemen
WO2009089460A2 (fr) * 2008-01-09 2009-07-16 International Mezzo Technologies, Inc. Échangeur thermique à micro-tubes ondulés
US8177932B2 (en) * 2009-02-27 2012-05-15 International Mezzo Technologies, Inc. Method for manufacturing a micro tube heat exchanger
TWI400599B (zh) * 2010-08-05 2013-07-01 Asia Vital Components Co Ltd Radiative fin manufacturing method
CN102832137A (zh) * 2011-06-15 2012-12-19 富准精密工业(深圳)有限公司 散热装置的制造方法
US9777878B2 (en) 2012-08-31 2017-10-03 Hanon Systems Connector
CN106371286B (zh) * 2016-10-17 2019-02-05 山东科技大学 一种腔式结构的纳米压印模板及其压印成型方法
DE102018208344A1 (de) * 2018-05-28 2019-11-28 Gehrmann & Hinrichs GmbH & Co. KG Luft-Luft-Wärmeübertrager für eine Lüftungsvorrichtung

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US2805591A (en) * 1955-12-16 1957-09-10 Widmer Hans Tool for making a pipe coupling
US3124874A (en) * 1964-03-17 Method of fastening pipe together
US3126625A (en) * 1964-03-31 Mkthob qf joining and bonding together
US3726122A (en) * 1971-03-10 1973-04-10 Mc Donnell Douglas Corp Swaging tool
DE2332241A1 (de) * 1973-06-25 1975-01-09 Kurt Otto Moebius Verbindungsring fuer rohrverbindungen
US4019232A (en) * 1974-12-04 1977-04-26 Daido Seiko Kabushiki Kaisha Ram type steel bar coupling apparatus
DE3129204A1 (de) * 1981-07-24 1983-02-10 Hackforth GmbH & Co KG, 4690 Herne "montagegeraet zum verspannen von rohrverbindungen"

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DE2364464A1 (de) * 1973-12-24 1975-07-03 Daimler Benz Ag Verfahren zur verbindung von rohrteilen von abgasleitungen
US4257155A (en) * 1976-07-26 1981-03-24 Hunter John J Method of making pipe coupling joint
DE3109687C2 (de) * 1981-03-13 1985-06-27 Dyckerhoff & Widmann AG, 8000 München Gerät zum Verbinden von zwei stumpf gestoßenen Bewehrungsstäben mittels einer Muffe

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124874A (en) * 1964-03-17 Method of fastening pipe together
US3126625A (en) * 1964-03-31 Mkthob qf joining and bonding together
US2805591A (en) * 1955-12-16 1957-09-10 Widmer Hans Tool for making a pipe coupling
US3726122A (en) * 1971-03-10 1973-04-10 Mc Donnell Douglas Corp Swaging tool
DE2332241A1 (de) * 1973-06-25 1975-01-09 Kurt Otto Moebius Verbindungsring fuer rohrverbindungen
US4019232A (en) * 1974-12-04 1977-04-26 Daido Seiko Kabushiki Kaisha Ram type steel bar coupling apparatus
DE3129204A1 (de) * 1981-07-24 1983-02-10 Hackforth GmbH & Co KG, 4690 Herne "montagegeraet zum verspannen von rohrverbindungen"

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2553316A1 (fr) * 1983-10-14 1985-04-19 Huetoetechnika Ipari Szoevetke Dispositif de fixation de plaques ou lames d'echangeur de chaleur sur des tubes porteurs
DE4325427A1 (de) * 1993-07-29 1995-02-02 Behr Gmbh & Co Wärmetauscher, insbesondere Kraftfahrzeugkühler
DE19546917A1 (de) * 1994-12-22 1996-06-27 Valeo Climatisation Wärmetauscher mit zusammengesteckten Rohrelementen, insbesondere für Kraftfahrzeuge, und Herstellungsverfahren
EP1941955A1 (fr) * 2005-10-28 2008-07-09 Toyota Jidosha Kabushiki Kaisha Procede de correction d'un tube metallique et de correction d'une matrice de presse a metaux
EP1941955A4 (fr) * 2005-10-28 2012-01-11 Toyota Motor Co Ltd Procede de correction d'un tube metallique et de correction d'une matrice de presse a metaux

Also Published As

Publication number Publication date
ES524326A0 (es) 1984-05-01
ES8403758A1 (es) 1984-05-01
DE3232297A1 (de) 1984-03-01
DE3376257D1 (en) 1988-05-19
JPS5950928A (ja) 1984-03-24
BR8304601A (pt) 1984-04-03
EP0102491B1 (fr) 1988-04-13
DE3232297C2 (de) 1985-05-09
ES282111Y (es) 1985-11-01
US4574444A (en) 1986-03-11
EP0102491A3 (en) 1985-05-15
MX156982A (es) 1988-10-18
ES282111U (es) 1985-04-01

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