EP0772019B1 - Echangeur de chaleur à tubes de section ovale ou oblongue et son procédé d'assemblage - Google Patents
Echangeur de chaleur à tubes de section ovale ou oblongue et son procédé d'assemblage Download PDFInfo
- Publication number
- EP0772019B1 EP0772019B1 EP96117254A EP96117254A EP0772019B1 EP 0772019 B1 EP0772019 B1 EP 0772019B1 EP 96117254 A EP96117254 A EP 96117254A EP 96117254 A EP96117254 A EP 96117254A EP 0772019 B1 EP0772019 B1 EP 0772019B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube
- axis
- tubes
- section
- heat exchanger
- 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
Links
Images
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
- F28F9/165—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by using additional preformed parts, e.g. sleeves, gaskets
-
- 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
- Y10T29/49375—Tube joint and tube plate structure including conduit expansion or inflation
-
- 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
- Y10T29/49377—Tube with heat transfer means
- Y10T29/49378—Finned tube
-
- 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
-
- 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
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53113—Heat exchanger
- Y10T29/53122—Heat exchanger including deforming means
Definitions
- the invention relates to a heat exchanger, in particular for a motor vehicle, and its assembly process.
- a heat exchanger of the type comprising a multiplicity of tubes passing through fins and having ends inserted into holes of a collector plate with interposition of a seal compressible seal forming collars surrounding the ends of the tubes, and in which the ends of the tubes have an oval or oblong section defined by a major axis and a small axis.
- Such heat exchangers are also called “exchangers heat to mechanical assembly "because the ends of the tubes are then flared to ensure compression of the joint flanges, which ensures the tightness of the connection tubes and the collector plate.
- each tube at its end, has the disadvantage of hardening the metal constituting the tube and eventually lead to bursting of the wall of the tube during the subsequent flaring operation allowing mechanical assembly.
- the object of the invention is in particular to overcome the drawbacks cited above.
- the end of the tube is not shaped before assembly, that is to say before mounting the collector plate. It follows that, when introducing the ends of the tubes in the holes of the collector plate, the ends tubes have the same section as the latter.
- the length of the tube devoid of fins, can be made very small, which increases the surface useful of the tube bundle.
- the section end of the tube, before assembly is equal to the section of the tube.
- the end section of the tube is not conformed before assembly.
- the compression of the joint collar sealing in the direction of the major axis is carried out before introduction of the end of the tube, while the compression of the seal collar in the direction of the minor axis results from the flaring of the tube during assembly of the heat exchanger.
- the major axis of the tube is greater than the major inner axis of the collar of the joint before compression, while the minor axis of the tube is lower than the small inner axis of the front seal collar compression.
- the invention relates to a method assembly of a heat exchanger of the defined type previously.
- the end section of each tube before assembly is identical to the section of the tube.
- operation c) of compression of the collar of the joint in the direction of a major axis is carried out at by means of a punch which has a free end suitable for enter the end of the corresponding tube, without the deform.
- operation d) of introducing the ends of the tubes is carried out by moving the collecting plate by means of of a bailer.
- the invention also provides that operation e) of flaring is made by means of a punch which widens the end of the tube in the direction of the minor axis.
- the heat exchanger shown in Figures 1 and 3 includes a bundle 10 formed of a multiplicity of tubes 12 of oval section which are arranged parallel to each other and in a single row.
- the tubes 12 pass through a multiplicity fins 14 formed by metal plates substantially rectangular perpendicular to each other.
- Each tube 12 has a free end 16 assembled mechanically to a header plate 18, also called “collector”. Before assembling the tubes and the plate manifold, the ends 16 of the tubes have exactly the same section as the tubes, in the current part receiving the fins 14.
- the collector plate 18 comprises a shaped core 20 general rectangular delimiting a multiplicity of holes 22, of oval section, suitable for receiving the ends 16 tubes. Each hole 22 is surrounded by a directed collar 24 on the side of the fins 14.
- the core 20 is extended by a peripheral gutter 26 delimiting a groove and ending with a peripheral rim 28 forming folding legs.
- the collector plate 18 receives a compressible seal 30 comprising a core 32 which is applied to the core 20 of the collector plate.
- This core 32 is connected to a multiplicity of collars 34 which each enter a hole 22 to ensure the seal between the end 16 of a tube and the collar 24 corresponding.
- the core 32 forms at its periphery a bead 36 disposed in the gutter 26 and suitable for seal with a manifold (not shown) when the peripheral rim 28 is folded down.
- the section of the end 16 of the tube has a substantially oval shape characterized by a major axis T'1 (after assembly) and a minor axis T'2 (after assembly).
- the major axis T'1 is equal to the major axis T1 ( Figure 7) of the section 16 of the end of the tube before assembly, this section being identical to that of the tubes in its part current.
- the minor axis T'2 is greater than the minor axis T2 before assembly (figure 7), because it underwent a first radial flare.
- a second localized radial flare which results in the presence of two bulges 38, as can be seen on Figures 1, 2 and 3 and which limit the displacement of the tube relative to the collector.
- each collar 34 of the seal 30 Before assembly, each collar 34 of the seal 30 is in the state uncompressed. It has a large internal axis J1 (figure 5) which is less than the major axis T1 of the end 16 of the tube ( Figure 7). It also has a small axis J2 (figure 5) which is greater than the minor axis T2 of the end of the tube (figure 7).
- the collecting plate 18 fitted of its joint 30 is placed near the bundle 10, of so that the holes 22 are opposite the ends 16 of the tubes.
- a multiplicity of punches 40 which each have a body 42 of oval section provided with an end 44 suitable for enter an end 16 of a tube 12, without the deform.
- the punch 42 is designed to exert compression on inside the collar 34 only in the direction of its major axis so that this major axis passes from the value J1 (figure 5) to a value J'1 (figure 6) which corresponds to the T1 value of the long axis of the tube to facilitate insertion of the tube according to a joint pre-stressing process.
- this prestressing of the joint is only carried out in the direction of its major axis. Indeed, it is not necessary to exert a prestress in the direction of the minor axis since the minor axis J2 of the compressible collar (Figure 5) is greater than or equal to the minor axis T2 of the end 16 of the tube.
- a presser 46 which is moved in the direction of arrow F2 and which is supported on the core 32 of the compressible seal 30.
- the displacement of the presser 46 causes the displacement of the collector plate 18-compressible seal 30 assembly, if although each end 16 is introduced into a collar 30 previously compressed in the direction of its major axis.
- each of the collars 34 is compressed in the direction of its major axis, but not in the direction of its minor axis.
- This flare allows to exert a compression on the collar 34 in the direction of its minor axis.
- each tube is conformed only after assembly and that this conformation is obtained only by a flaring in the direction of the minor axis.
- this flaring relates to the large radius faces of the section of the tube, which eliminates the problems of work hardening.
- the invention is particularly applicable to the production of heat exchangers for motor vehicles, in particular for cooling radiators or heater.
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)
Description
- la figure 1 est une vue en coupe transversale partielle d'un échangeur de chaleur selon l'invention, une fois assemblé;
- la figure 2 est une vue de l'extrémité d'un tube de l'échangeur de chaleur de la figure 1;
- la figure 3 est une vue en coupe selon la ligne III-III de la figure 1;
- la figure 4 est une vue en coupe transversale de la plaque collectrice et du joint d'étanchéité de l'échangeur de chaleur de la figure 1, avant assemblage;
- la figure 5 est une vue en coupe selon la ligne V-V de la figure 4;
- la figure 6 est une vue analogue à celle de la figure 4 au cours d'une phase du procédé, dans laquelle un poinçon est introduit au travers de chaque trou de la plaque collectrice et emmanché dans un tube du faisceau;
- la figure 7 est une vue de l'extrémité d'un tube avant assemblage;
- la figure 8 est une vue en coupe analogue à celle de la figure 6 au cours d'une phase ultérieure du procédé dans laquelle les extrémités de tubes ont été introduites dans les trous de la plaque collectrice;
- la figure 9 est une vue en coupe selon la ligne IX-IX de la figure 8;
- la figure 10 est une vue en coupe selon la ligne X-X de la figure 8; et
- la figure 11 est une vue en coupe analogue à celle de la figure 10 montrant le procédé d'évasement de l'extrémité du tube.
Claims (9)
- Echangeur de chaleur du type comprenant une multiplicité de tubes (12) dont la section est de forme ovale ou oblongue ayant un grand axe (T1) et un petit axe (T2) traversant des ailettes (14) et ayant des extrémités (16) introduites dans des trous (22) d'une plaque collectrice (18) avec interposition d'un joint d'étanchéité compressible (30) formant des collets (34) entourant les extrémités (16) des tubes,
caractérisé en ce que le grand axe (T'1) de l'extrémité (16) du tube (12) est égal au grand axe (T1) du tube, tandis que le petit axe (T'2) de l'extrémité (16) du tube (12) est supérieur au petit axe (T2) du tube par suite d'un évasement du tube lors de l'assemblage de l'échangeur de chaleur. - Echangeur de chaleur selon la revendication 1, caractérisé en ce que la section de l'extrémité (16) du tube (12), avant assemblage, est égale à la section du tube (12).
- Echangeur de chaleur selon l'une des revendications 1 et 2, caractérisé en ce que la compression du collet (34) du joint d'étanchéité dans la direction du grand axe (J1) est effectuée avant introduction de l'extrémité (16) du tube (12), tandis que la compression du collet (34) du joint d'étanchéité (30) dans la direction du petit axe (J2) résulte de l'évasement du tube (12) lors de l'assemblage de l'échangeur de chaleur.
- Echangeur de chaleur selon l'une des revendications 1 à 3, caractérisé en ce que le grand axe (T1) du tube est supérieur au grand axe intérieur (J1) du collet (34) du joint (30) avant compression, et en ce que le petit axe (T2) du tube (12) est inférieur au petit axe intérieur (J2) du collet (34) du joint avant compression.
- Procédé d'assemblage d'un échangeur de chaleur selon l'une des revendications 1 à 4, caractérisé en ce qu'il comprend les opérations suivantes :a) prévoir une multiplicité de tubes (12) traversant des ailettes (14) et ayant chacun une section ovale ou allongée définie par un grand axe (T1) et un petit axe (T2), ainsi qu'une extrémité libre (16);b) prévoir une plaque collectrice (18) munie de trous (22) de section ovale ou allongée et équipée d'un joint d'étanchéité (30) compressible formant des collets (34) propres à être engagés respectivement au travers des trous (22);c) comprimer chaque collet (34) du joint (30) dans la direction de son grand axe (J1);d) introduire les extrémités respectives (16) des tubes (12) dans les trous (22) de la plaque collectrice (18) et les collets (34) du joint d'étanchéité (30), maintenus comprimés dans la direction du grand axe; ete) soumettre les extrémités (16) des tubes (12) à un évasement dans la direction de leur petit axe pour assurer la compression du collet (34) du joint dans cette direction.
- Procédé selon la revendication 5, caractérisé en ce que dans l'opération a), la section de l'extrémité (16) de chaque tube (12) avant assemblage est identique à la section du tube (12).
- Procédé selon l'une des revendications 5 et 6, caractérisé en ce que l'opération c) de compression du collet (34) du joint (30) dans la direction de son grand axe est effectuée au moyen d'un poinçon (40) qui présente une extrémité libre (44) propre à s'introduire dans l'extrémité (16) du tube (12) correspondant, sans la déformer.
- Procédé selon l'une des revendications 5 à 7, caractérisé en ce que l'opération d) d'introduction des extrémités (16) des tubes (12) s'effectue par déplacement de la plaque collectrice (18) au moyen d'un presseur (46).
- Procédé selon l'une des revendications 5 à 8, caractérisé en ce que l'opération d'évasement e) est réalisée au moyen d'un poinçon (48) qui élargit l'extrémité (16) du tube (12) dans la direction du petit axe.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9512949A FR2740869B1 (fr) | 1995-11-02 | 1995-11-02 | Echangeur de chaleur a tubes de section ovale ou oblongue et son procede d'assemblage |
FR9512949 | 1995-11-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0772019A1 EP0772019A1 (fr) | 1997-05-07 |
EP0772019B1 true EP0772019B1 (fr) | 2000-08-30 |
Family
ID=9484165
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96117254A Expired - Lifetime EP0772019B1 (fr) | 1995-11-02 | 1996-10-28 | Echangeur de chaleur à tubes de section ovale ou oblongue et son procédé d'assemblage |
Country Status (6)
Country | Link |
---|---|
US (2) | US5901784A (fr) |
EP (1) | EP0772019B1 (fr) |
BR (1) | BR9605375A (fr) |
DE (1) | DE69610059T2 (fr) |
FR (1) | FR2740869B1 (fr) |
MX (1) | MX9605319A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2825458A1 (fr) | 2001-05-16 | 2002-12-06 | Behr Gmbh & Co | Echangeur de chaleur et procede pour sa fabrication |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19719259B4 (de) * | 1997-05-07 | 2005-08-18 | Valeo Klimatechnik Gmbh & Co. Kg | Flachrohrwärmetauscher für Kraftfahrzeuge mit an Krägen eines Rohrbodens gehaltenen Flachrohren |
FR2772341B1 (fr) * | 1997-12-12 | 2000-03-24 | Aerospatiale | Diffuseur d'air chaud pour capot d'entree d'air de moteur a reaction a circuit de degivrage |
DE19836015C2 (de) * | 1998-08-10 | 2002-06-13 | Behr Gmbh & Co | Verfahren zum Aufweiten von Rohrenden von Rohren eines Wärmetauschers |
FR2783907B1 (fr) * | 1998-09-25 | 2000-12-22 | Valeo Thermique Moteur Sa | Echangeur de chaleur d'encombrement reduit, en particulier pour vehicule automobile |
JP4188475B2 (ja) * | 1998-12-22 | 2008-11-26 | 日高精機株式会社 | 熱交換器の製造方法 |
US20020098056A1 (en) * | 2001-01-22 | 2002-07-25 | Progressive Stamping Company, Inc. | Method of attaching a plate to a rod and assembly |
DE10147192A1 (de) | 2001-09-25 | 2003-04-17 | Modine Mfg Co | Wärmeaustauscher mit einem Rippen-Flachrohr-Block und Herstellungsverfahren |
US6971860B2 (en) * | 2003-05-02 | 2005-12-06 | Bristol Compressors, Inc. | Compressor unit housing |
CA2443496C (fr) * | 2003-09-30 | 2011-10-11 | Dana Canada Corporation | Echangeurs de chaleur a faisceau comprenant des tubes a extremite de section elargie |
JP4239840B2 (ja) * | 2004-02-03 | 2009-03-18 | 株式会社デンソー | 熱交換器用チューブの口拡治具 |
US7549465B2 (en) * | 2006-04-25 | 2009-06-23 | Lennox International Inc. | Heat exchangers based on non-circular tubes with tube-endplate interface for joining tubes of disparate cross-sections |
US20080053646A1 (en) * | 2006-09-05 | 2008-03-06 | Simon Martin | Thermal expansion feature for an exhaust gas cooler |
US8464635B1 (en) * | 2008-01-17 | 2013-06-18 | Alkar-Rapidpak-Mp Equipment, Inc. | Frying system |
US20100052318A1 (en) * | 2008-08-27 | 2010-03-04 | Woodward Governor Company | System and Method of Joining Fluid Transporting Tube and Header Using Internal Ferrule |
FR2951259B1 (fr) | 2009-10-08 | 2014-02-28 | Valeo Systemes Thermiques | Plaque collectrice pour un echangeur de chaleur et echangeur de chaleur correspondant |
US9623471B2 (en) * | 2010-10-08 | 2017-04-18 | Carrier Corporation | Furnace heat exchanger attachment |
CZ2012317A3 (cs) * | 2012-05-14 | 2013-11-27 | Halla Visteon Climate Control Corporation | Sberná hlavová nádrz |
CN105164487B (zh) * | 2013-04-09 | 2017-08-01 | 松下知识产权经营株式会社 | 导热鳍片、热交换器以及冷冻循环装置 |
US9127403B2 (en) * | 2013-05-28 | 2015-09-08 | Andritz Inc. | Flash tank with flared inlet insert and method for introducing flow into a flash tank |
ES2742887T3 (es) * | 2014-04-29 | 2020-02-17 | Carrier Corp | Intercambiador de calor mejorado |
US10317142B2 (en) * | 2014-08-25 | 2019-06-11 | Hanon Systems | Heat exchanger having a mechanically assembled header |
US10082348B2 (en) | 2014-09-23 | 2018-09-25 | Enterex America LLC | Heat exchanger tube-to-header sealing system |
DE102014219401A1 (de) * | 2014-09-25 | 2016-03-31 | Mahle International Gmbh | Anordnung für eine Temperiereinrichtung sowie Temperiereinrichtung |
US20160146551A1 (en) | 2014-11-26 | 2016-05-26 | Enterex America LLC | Heat exchanger assembly |
FR3037388B1 (fr) * | 2015-06-12 | 2019-07-26 | Valeo Systemes Thermiques | Ailette d'un echangeur thermique notamment pour vehicule automobile, et echangeur thermique correspondant |
FR3037643B1 (fr) * | 2015-06-22 | 2019-07-12 | Valeo Systemes Thermiques | Echangeur de chaleur et procede de fabrication associe |
FR3056733A1 (fr) * | 2016-09-28 | 2018-03-30 | Valeo Systemes Thermiques | Echangeur de chaleur et procede de fabrication associe |
DE102017202667B4 (de) * | 2017-02-20 | 2020-03-05 | Hanon Systems | Wärmetauscher |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3589440A (en) * | 1969-12-01 | 1971-06-29 | Modine Mfg Co | Tube and header construction |
FR2467374A1 (fr) * | 1979-10-12 | 1981-04-17 | Ferodo Sa | Dispositif d'assemblage etanche entre un collecteur et une boite a eau d'echangeur de chaleur |
FR2474674B1 (fr) | 1980-01-24 | 1986-03-14 | Ferodo Sa | Tube pour echangeur de chaleur a corps de section oblongue et extremite cylindrique |
FR2484071B1 (fr) * | 1980-06-05 | 1985-12-13 | Valeo | Plaque a trous pour un echangeur de chaleur a tubes de circulation de fluide |
FR2570814B1 (fr) * | 1984-09-25 | 1986-12-19 | Valeo | Echangeur de chaleur a faisceau de tubes, en particulier pour vehicule automobile |
DE3908266A1 (de) | 1989-03-14 | 1990-09-20 | Autokuehler Gmbh & Co Kg | Waermeaustauscher und verfahren zur fluessigkeitsdichten befestigung einer bodenplatte an einem waermetauschernetz |
FR2674321B1 (fr) * | 1991-03-20 | 1993-06-04 | Valeo Thermique Moteur Sa | Echangeur de chaleur a plusieurs rangees de tubes, en particulier pour vehicule automobile. |
US5123482A (en) * | 1991-11-14 | 1992-06-23 | Wynn's Climate Systems, Inc. | Oval tube heat exchanger |
DE4212717A1 (de) * | 1992-04-16 | 1993-10-21 | Laengerer & Reich Gmbh & Co | Wärmeaustauscher |
FR2690230B1 (fr) * | 1992-04-21 | 1994-06-03 | Valeo Thermique Moteur Sa | Echangeur de chaleur comportant un faisceau de tubes a ailettes immobilise par rapport a un ensemble collecteur-boite a eau. |
FR2695990B1 (fr) * | 1992-09-22 | 1994-12-02 | Valeo Thermique Moteur Sa | Tube pour échangeur de chaleur à assemblage mécanique et échangeur de chaleur ainsi obtenu. |
DE4305945A1 (de) * | 1993-02-26 | 1994-09-01 | Behr Gmbh & Co | Wärmetauscher, insbesondere für Kraftfahrzeuge |
DE4311892A1 (de) * | 1993-04-10 | 1994-10-13 | Behr Gmbh & Co | Wärmetauscher, insbesondere für Kraftfahrzeuge |
FR2705143B1 (fr) * | 1993-05-11 | 1995-06-23 | Valeo Thermique Moteur Sa | Echangeur de chaleur notamment pour vehicule automobile. |
FR2715216B1 (fr) * | 1994-01-20 | 1996-02-16 | Valeo Thermique Moteur Sa | Tube d'échangeur de chaleur, procédé pour sa conformation et échangeur de chaleur comprenant de tels tubes. |
-
1995
- 1995-11-02 FR FR9512949A patent/FR2740869B1/fr not_active Expired - Fee Related
-
1996
- 1996-10-28 DE DE69610059T patent/DE69610059T2/de not_active Expired - Fee Related
- 1996-10-28 EP EP96117254A patent/EP0772019B1/fr not_active Expired - Lifetime
- 1996-10-31 BR BR9605375A patent/BR9605375A/pt not_active IP Right Cessation
- 1996-10-31 US US08/741,975 patent/US5901784A/en not_active Expired - Lifetime
- 1996-11-01 MX MX9605319A patent/MX9605319A/es not_active IP Right Cessation
-
1998
- 1998-12-09 US US09/207,950 patent/US6044554A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2825458A1 (fr) | 2001-05-16 | 2002-12-06 | Behr Gmbh & Co | Echangeur de chaleur et procede pour sa fabrication |
Also Published As
Publication number | Publication date |
---|---|
FR2740869A1 (fr) | 1997-05-09 |
DE69610059D1 (de) | 2000-10-05 |
DE69610059T2 (de) | 2001-04-12 |
US6044554A (en) | 2000-04-04 |
EP0772019A1 (fr) | 1997-05-07 |
BR9605375A (pt) | 1998-07-28 |
FR2740869B1 (fr) | 1997-12-19 |
MX9605319A (es) | 1997-08-30 |
US5901784A (en) | 1999-05-11 |
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