EP0566472B1 - Tubular header box and manufacturing method of a heat-exchanger by driving heat-exchanger tubes - Google Patents

Tubular header box and manufacturing method of a heat-exchanger by driving heat-exchanger tubes Download PDF

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Publication number
EP0566472B1
EP0566472B1 EP93400953A EP93400953A EP0566472B1 EP 0566472 B1 EP0566472 B1 EP 0566472B1 EP 93400953 A EP93400953 A EP 93400953A EP 93400953 A EP93400953 A EP 93400953A EP 0566472 B1 EP0566472 B1 EP 0566472B1
Authority
EP
European Patent Office
Prior art keywords
tubes
tubular wall
longitudinal direction
wall
projection
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
EP93400953A
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German (de)
French (fr)
Other versions
EP0566472A1 (en
Inventor
Pascal Velluet
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 EP0566472A1 publication Critical patent/EP0566472A1/en
Application granted granted Critical
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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
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/06—Arrangements for sealing elements into header boxes or end plates by dismountable joints
    • F28F9/14—Arrangements for sealing elements into header boxes or end plates by dismountable joints by force-joining
    • 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
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • F28F9/182—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding the heat-exchange conduits having ends with a particular shape, e.g. deformed; the heat-exchange conduits or end plates having supplementary joining means, e.g. abutments
    • 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
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • 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
    • F28F9/0243—Header boxes having a circular cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/32—Safety or protection arrangements; Arrangements for preventing malfunction for limiting movements, e.g. stops, locking means
    • 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
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49389—Header or manifold making

Definitions

  • the invention relates to heat exchangers of the type comprising a fluid box communicating with a multiplicity of parallel and mutually aligned fluid circulation tubes, the fluid box comprising a tubular wall extending in the direction of alignment of the tubes and having a multiplicity of openings through which they pass.
  • this interior surface being generally circular
  • the ends of the tubes abut at the center of the circular profile if their width in the radial direction is equal to its diameter, and beyond the center if this width is less than the diameter , the further away from the center the smaller the width of the tubes.
  • the space available in the fluid box facing the ends of the tubes may then become insufficient for proper circulation of the fluid between the tubes and the fluid box. In addition, this space can vary from one tube to another due to manufacturing dispersions.
  • the object of the invention is to remedy these drawbacks.
  • each tube in a method of the kind defined in the introduction, abuts on at least one internal projection carried by the tubular wall.
  • the end of the tube comes into contact with the projection through at least one of its two regions furthest from the median plane of the alignment of the tubes.
  • the tubular wall has a multiplicity of internal projections aligned in its longitudinal direction and arranged in line with the tubes respectively.
  • the tubular wall has an internal projection extending continuously in its longitudinal direction, facing the set of tubes.
  • each tube can abut on two internal projections located respectively on either side of the median plane of the alignment of the tubes.
  • the subject of the invention is also a tubular wall for implementing the method defined above, having a multiplicity of openings aligned in its longitudinal direction for the passage of the tubes and a corresponding multiplicity of internal projections carried by the wall, each projection being arranged in line with the corresponding opening in the longitudinal direction of the tubular wall and offset with respect thereto in its circumferential direction, and the projections being mutually aligned in the longitudinal direction.
  • the tubular wall has an inner projection carried by the wall, extending continuously in the longitudinal direction of the tubular wall and offset from the openings in its circumferential direction.
  • the internal projection is formed by a depression of the wall.
  • the left half of the figure shows, in cross section, a tubular wall 1 with a circular profile belonging to a fluid box of an air conditioning condenser of a motor vehicle, having an opening 2 as well as other openings aligned with it in the longitudinal direction of the wall 1.
  • the opening 2 is traversed by a fluid circulation tube 3, the longitudinal direction of which is perpendicular to that of the wall 1 and having an elongated cross section transversely to the latter direction.
  • Other similar tubes aligned with the tube 3 pass through the other openings.
  • the end 4 of the tube 3 has been inserted into the fluid box through the opening 2, along the arrow F parallel to the longitudinal direction of the tube, until it abuts against the internal surface 5 of circular profile of the tubular wall, by its two marginal regions 6 furthest from the median plane P of the row of tubes, these two regions 6 being symmetrical to each other with respect to the plane P.
  • the latter contains the longitudinal axes of the wall 1 and tube 3.
  • the right half of the figure shows a tubular wall 11 having the same circular base profile as the wall 1, however locally modified by a depression defining a projection 18 inside the tubular wall, this depression being offset in the circumferential direction relative to openings 2 identical to those of wall 1, and extending continuously, in the longitudinal direction of the tubular wall, facing all of these openings.
  • a circulation tube 3 identical to that shown in the left half, whose penetration inside the tubular wall is limited by the arrival of the marginal region 6 of its end 4 in abutment against the projection 18.
  • the free space 19 remaining inside the fluid box facing the end 4 of the tube 3 is larger than the corresponding space 9 in the known heat exchanger.
  • this space 19 is not affected by the dimensional variations concerning the width of the tube 3, since the projection 18 extends sufficiently far towards the plane P to always come into contact with the end of the tube.
  • the continuous recess 17 can be replaced by a multiplicity of recesses mutually aligned in the longitudinal direction of the tubular wall, each of the corresponding projections coming into contact with the end of one of the tubes.
  • two projections or two series of projections can be provided on either side of the plane P, for example symmetrically with respect thereto, to come into contact with the two marginal regions 6 respectively of the ends of the tubes .
  • the projection 18 can be produced by any other means than a depression and in particular, when the fluid box is extruded, this projection can be made during the extrusion operation of this box.
  • the tubular wall 11 can be formed in a single piece of sheet metal, for example a substantially rectangular sheet rolled and brazed edge to edge. It can also be formed from two parts assembled in a sealed manner and each extending over a fraction of the circumference, the projection (s) 18 being formed on at least one of these two parts.

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  • 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)
  • Air-Conditioning For Vehicles (AREA)

Description

L'invention concerne les échangeurs de chaleur du type comprenant une boîte à fluide communiquant avec une multiplicité de tubes de circulation de fluide parallèles et mutuellement alignés, la boîte à fluide comportant une paroi tubulaire s'étendant dans la direction d'alignement des tubes et présentant une multiplicité d'ouvertures traversées par ceux-ci.The invention relates to heat exchangers of the type comprising a fluid box communicating with a multiplicity of parallel and mutually aligned fluid circulation tubes, the fluid box comprising a tubular wall extending in the direction of alignment of the tubes and having a multiplicity of openings through which they pass.

Dans un procédé connu pour la fabrication d'un tel échangeur de chaleur, utilisable notamment comme condenseur dans une installation de climatisation de véhicule automobile , on introduit les extrémités des tubes de circulation respectivement dans les ouvertures de la paroi tubulaire et on déplace les tubes parallèlement à leur direction longitudinale jusqu'à ce que lesdites extrémités viennent en butée contre la surface interne de la boîte à fluide.In a known method for manufacturing such a heat exchanger, which can be used in particular as a condenser in a motor vehicle air conditioning installation, the ends of the circulation tubes are introduced respectively into the openings of the tubular wall and the tubes are moved in parallel in their longitudinal direction until said ends abut against the internal surface of the fluid box.

Le profil de cette surface intérieure étant généralement circulaire, les extrémités des tubes viennent en butée au niveau du centre du profil circulaire si leur largeur dans la direction radiale est égale à son diamètre, et au-delà du centre si cette largeur est inférieure au diamètre, d'autant plus loin du centre que la largeur des tubes est plus petite. L'espace disponible dans la boîte à fluide face aux extrémités des tubes peut alors devenir insuffisant pour une circulation convenable du fluide entre les tubes et la boîte à fluide. De plus, cet espace peut varier d'un tube à l'autre du fait des dispersions de fabrication.The profile of this interior surface being generally circular, the ends of the tubes abut at the center of the circular profile if their width in the radial direction is equal to its diameter, and beyond the center if this width is less than the diameter , the further away from the center the smaller the width of the tubes. The space available in the fluid box facing the ends of the tubes may then become insufficient for proper circulation of the fluid between the tubes and the fluid box. In addition, this space can vary from one tube to another due to manufacturing dispersions.

Le but de l'invention est de remédier à ces inconvénients.The object of the invention is to remedy these drawbacks.

A cet effet, selon l'invention, dans un procédé du genre défini en introduction, l'extrémité de chaque tube vient en butée sur au moins une saillie intérieure portée par la paroi tubulaire.To this end, according to the invention, in a method of the kind defined in the introduction, the end of each tube abuts on at least one internal projection carried by the tubular wall.

De préférence, l'extrémité du tube vient en contact avec la saillie par l'une au moins de ses deux régions les plus éloignées du plan médian de l'alignement des tubes.Preferably, the end of the tube comes into contact with the projection through at least one of its two regions furthest from the median plane of the alignment of the tubes.

Selon un mode de réalisation de l'invention, la paroi tubulaire présente une multiplicité de saillies intérieures alignées dans sa direction longitudinale et disposées au droit des tubes respectivement.According to one embodiment of the invention, the tubular wall has a multiplicity of internal projections aligned in its longitudinal direction and arranged in line with the tubes respectively.

Selon un autre mode de réalisation, la paroi tubulaire présente une saillie intérieure s'étendant de façon continue selon sa direction longitudinale, en regard de l'ensemble des tubes.According to another embodiment, the tubular wall has an internal projection extending continuously in its longitudinal direction, facing the set of tubes.

Si on le souhaite, l'extrémité de chaque tube peut venir en butée sur deux saillies intérieures situées respectivement de part et d'autre du plan médian de l'alignement des tubes.If desired, the end of each tube can abut on two internal projections located respectively on either side of the median plane of the alignment of the tubes.

L'invention a également pour objet une paroi tubulaire pour la mise en oeuvre du procédé défini ci-dessus, présentant une multiplicité d'ouvertures alignées dans sa direction longitudinale pour le passage des tubes et une multiplicité correspondante de saillies intérieures portées par la paroi, chaque saillie étant disposée au droit de l'ouverture correspondante dans la direction longitudinale de la paroi tubulaire et décalée par rapport à celles-ci dans sa direction circonférentielle, et les saillies étant mutuellement alignées dans la direction longitudinale.The subject of the invention is also a tubular wall for implementing the method defined above, having a multiplicity of openings aligned in its longitudinal direction for the passage of the tubes and a corresponding multiplicity of internal projections carried by the wall, each projection being arranged in line with the corresponding opening in the longitudinal direction of the tubular wall and offset with respect thereto in its circumferential direction, and the projections being mutually aligned in the longitudinal direction.

Selon une variante, la paroi tubulaire présente une saillie intérieure portée par la paroi, s'étendant de façon continue selon la direction longitudinale de la paroi tubulaire et décalée par rapport aux ouvertures dans sa direction circonférentielle.Alternatively, the tubular wall has an inner projection carried by the wall, extending continuously in the longitudinal direction of the tubular wall and offset from the openings in its circumferential direction.

Selon un mode de réalisation, la saillie intérieure est formée par un enfoncement de la paroi.According to one embodiment, the internal projection is formed by a depression of the wall.

D'autres caractéristiques et avantages de l'invention ressortiront de la description donnée ci-après d'un exemple de réalisation, et du dessin annexé dans lequel la figure unique est une vue partielle en coupe montrant dans sa moitié gauche un échangeur de chaleur fabriqué par un procédé connu et dans sa moitié droite un échangeur de chaleur obtenu par le procédé selon l'invention.Other characteristics and advantages of the invention will emerge from the description given below of an exemplary embodiment, and of the appended drawing in which the single figure is a partial sectional view showing in its left half a heat exchanger manufactured by a known method and in its right half a heat exchanger obtained by the method according to the invention.

La moitié gauche de la figure montre, en coupe transversale, une paroi tubulaire 1 à profil circulaire appartenant à une boîte à fluide d'un condenseur de climatisation de véhicule automobile, présentant une ouverture 2 ainsi que d'autres ouvertures alignées avec celle-ci dans la direction longitudinale de la paroi 1. L'ouverture 2 est traversée par un tube de circulation de fluide 3 dont la direction longitudinale est perpendiculaire à celle de la paroi 1 et présentant une section transversale allongée transversalement à cette dernière direction. D'autres tubes semblables alignés avec le tube 3 traversent les autres ouvertures. L'extrémité 4 du tube 3 a été enfoncée dans la boîte à fluide à travers l'ouverture 2, selon la flèche F parallèle à la direction longitudinale du tube, jusqu'à venir en butée contre la surface interne 5 à profil circulaire de la paroi tubulaire, par ses deux régions marginales 6 les plus éloignées du plan médian P de la rangée de tubes, ces deux régions 6 étant symétriques l'une de l'autre par rapport au plan P. Ce dernier contient les axes longitudinaux de la paroi 1 et du tube 3.The left half of the figure shows, in cross section, a tubular wall 1 with a circular profile belonging to a fluid box of an air conditioning condenser of a motor vehicle, having an opening 2 as well as other openings aligned with it in the longitudinal direction of the wall 1. The opening 2 is traversed by a fluid circulation tube 3, the longitudinal direction of which is perpendicular to that of the wall 1 and having an elongated cross section transversely to the latter direction. Other similar tubes aligned with the tube 3 pass through the other openings. The end 4 of the tube 3 has been inserted into the fluid box through the opening 2, along the arrow F parallel to the longitudinal direction of the tube, until it abuts against the internal surface 5 of circular profile of the tubular wall, by its two marginal regions 6 furthest from the median plane P of the row of tubes, these two regions 6 being symmetrical to each other with respect to the plane P. The latter contains the longitudinal axes of the wall 1 and tube 3.

La moitié droite de la figure montre une paroi tubulaire 11 présentant le même profil de base circulaire que la paroi 1, cependant modifié localement par un enfoncement définissant une saillie 18 à l'intérieur de la paroi tubulaire, cet enfoncement étant décalé dans la direction circonférentielle par rapport à des ouvertures 2 identiques à celles de la paroi 1, et s'étendant de façon continue, dans la direction longitudinale de la paroi tubulaire, en regard de l'ensemble de ces ouvertures. On voit également un tube de circulation 3, identique à celui représenté dans la moitié gauche, dont l'enfoncement à l'intérieur de la paroi tubulaire est limité par l'arrivée de la région marginale 6 de son extrémité 4 en butée contre la saillie 18. L'espace libre 19 subsistant à l'intérieur de la boîte à fluide face à l'extrémité 4 du tube 3 est plus grand que l'espace correspondant 9 dans l'échangeur de chaleur connu. De plus, cet espace 19 n'est pas affecté par les variations dimensionnelles concernant la largeur du tube 3, dès lors que la saillie 18 s'étend suffisamment loin en direction du plan P pour venir toujours en contact avec l'extrémité du tube.The right half of the figure shows a tubular wall 11 having the same circular base profile as the wall 1, however locally modified by a depression defining a projection 18 inside the tubular wall, this depression being offset in the circumferential direction relative to openings 2 identical to those of wall 1, and extending continuously, in the longitudinal direction of the tubular wall, facing all of these openings. We also see a circulation tube 3, identical to that shown in the left half, whose penetration inside the tubular wall is limited by the arrival of the marginal region 6 of its end 4 in abutment against the projection 18. The free space 19 remaining inside the fluid box facing the end 4 of the tube 3 is larger than the corresponding space 9 in the known heat exchanger. In addition, this space 19 is not affected by the dimensional variations concerning the width of the tube 3, since the projection 18 extends sufficiently far towards the plane P to always come into contact with the end of the tube.

L'enfoncement continu 17 peut être remplacé par une multiplicité d'enfoncements mutuellement alignés dans la direction longitudinale de la paroi tubulaire, chacune des saillies correspondantes venant en contact avec l'extrémité de l'un des tubes. Si on le souhaite, deux saillies ou deux séries de saillies peuvent être prévues de part et d'autre du plan P, par exemple symétriquement par rapport à celui-ci, pour venir en contact avec les deux régions marginales 6 respectivement des extrémités des tubes.The continuous recess 17 can be replaced by a multiplicity of recesses mutually aligned in the longitudinal direction of the tubular wall, each of the corresponding projections coming into contact with the end of one of the tubes. If desired, two projections or two series of projections can be provided on either side of the plane P, for example symmetrically with respect thereto, to come into contact with the two marginal regions 6 respectively of the ends of the tubes .

Bien entendu, la saillie 18 peut être réalisée par tout autre moyen qu'un enfoncement et en particulier, lorsque la boîte à fluide est extrudée, cette saillie peut être réalisée lors de l'opération d'extrusion de cette boîte.Of course, the projection 18 can be produced by any other means than a depression and in particular, when the fluid box is extruded, this projection can be made during the extrusion operation of this box.

La paroi tubulaire 11 peut être formée d'une seule pièce en tôle, par exemple une feuille sensiblement rectangulaire roulée et brasée bord à bord. Elle peut également être formée de deux pièces assemblées de façon étanche et s'étendant chacune sur une fraction de la circonférence, la ou les saillies 18 étant ménagées sur l'une au moins de ces deux pièces.The tubular wall 11 can be formed in a single piece of sheet metal, for example a substantially rectangular sheet rolled and brazed edge to edge. It can also be formed from two parts assembled in a sealed manner and each extending over a fraction of the circumference, the projection (s) 18 being formed on at least one of these two parts.

Claims (9)

  1. A method of making a heat exchanger comprising a fluid header communicating with a multiplicity of parallel fluid flow tubes (3) which are aligned with each other, the fluid header including a tubular wall (11) extending in the direction in which the tubes are aligned and having a multiplicity of apertures (2) through which the latter extend, in which method the respective ends (4) of the tubes are introduced into the apertures in the tubular wall, and the tubes are displaced (F) parallel to their longitudinal direction, characterised in that the end of each tube abuts on at least one internal projection (18) carried by the tubular wall.
  2. A method according to Claim 1, characterised in that the end of the tube makes contact with the projection (18) through at least one of its two regions (6) furthest away from the median alignment plane (P) of the tubes (3).
  3. A method according to Claim 1 or Claim 2, characterised in that the tubular wall has a multiplicity of internal projections, aligned in the longitudinal direction of the wall and disposed in line with the respective tubes.
  4. A method according to Claim 1 or Claim 2, characterised in the tubular wall has an internal projection extending continuously in its longitudinal direction and towards the set of tubes.
  5. A method according to one of the preceding claims, characterised in that the end of each tube makes abutting engagement on two internal projections which lie respectively on either side of the median alignment plane of the set of tubes.
  6. A method according to one of the preceding claims, characterised in that the projection (18) is defined by a recess (17) in the tubular wall (11).
  7. A tubular wall for execution of the method of one of the preceding claims, having a multiplicity of apertures aligned in its longitudinal direction for insertion of the tubes in the wall, together with a corresponding multiplicity of internal projections carried by the wall, each projection being disposed in line with the corresponding aperture in the longitudinal direction of the tubular wall and being offset with respect to the latter in its circumferential direction, and the projections being aligned with each other in the longitudinal direction.
  8. A tubular wall for execution of the method of one of Claims 1 to 5, having a multiplicity of apertures (2) aligned in its longitudinal direction for insertion of the tubes (3) therein, and an internal projection (18) carried by the wall, extending continuously in the longitudinal direction of the tubular wall and offset with respect to the apertures in the circumferential direction of the latter.
  9. A tubular wall according to Claim 7 or Claim 8, characterised in that the projection (18) is a deformation (17) of the said wall.
EP93400953A 1992-04-16 1993-04-13 Tubular header box and manufacturing method of a heat-exchanger by driving heat-exchanger tubes Expired - Lifetime EP0566472B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9204708 1992-04-16
FR9204708A FR2690235A1 (en) 1992-04-16 1992-04-16 Tubular box wall of fluid and method for the manufacture of a heat exchanger by driving of circulation tubes.

Publications (2)

Publication Number Publication Date
EP0566472A1 EP0566472A1 (en) 1993-10-20
EP0566472B1 true EP0566472B1 (en) 1995-01-04

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EP93400953A Expired - Lifetime EP0566472B1 (en) 1992-04-16 1993-04-13 Tubular header box and manufacturing method of a heat-exchanger by driving heat-exchanger tubes

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US (1) US5343620A (en)
EP (1) EP0566472B1 (en)
JP (1) JPH06117795A (en)
KR (1) KR930022051A (en)
BR (1) BR9301534A (en)
DE (1) DE69300044T2 (en)
ES (1) ES2068727T3 (en)
FR (1) FR2690235A1 (en)
MX (1) MX9302248A (en)

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US5343620A (en) 1994-09-06
JPH06117795A (en) 1994-04-28
ES2068727T3 (en) 1995-04-16
BR9301534A (en) 1993-10-19
KR930022051A (en) 1993-11-23
DE69300044T2 (en) 1995-05-11
FR2690235A1 (en) 1993-10-22
MX9302248A (en) 1993-10-01
EP0566472A1 (en) 1993-10-20
DE69300044D1 (en) 1995-02-16

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