EP0371532A1 - Radiator for a central-heating system - Google Patents

Radiator for a central-heating system Download PDF

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Publication number
EP0371532A1
EP0371532A1 EP89202858A EP89202858A EP0371532A1 EP 0371532 A1 EP0371532 A1 EP 0371532A1 EP 89202858 A EP89202858 A EP 89202858A EP 89202858 A EP89202858 A EP 89202858A EP 0371532 A1 EP0371532 A1 EP 0371532A1
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EP
European Patent Office
Prior art keywords
legs
shaped
welded
leg
radiator
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
EP89202858A
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German (de)
French (fr)
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EP0371532B1 (en
Inventor
Jos Vaessen
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.)
N.V. VASCO
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Nv Vasco
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 Nv Vasco filed Critical Nv Vasco
Publication of EP0371532A1 publication Critical patent/EP0371532A1/en
Application granted granted Critical
Publication of EP0371532B1 publication Critical patent/EP0371532B1/en
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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight

Definitions

  • the invention relates to a central heating radiator mainly comprising several parallel pipes, the ends of which open respectively into a manifold to which the supply and discharge pipes of the heating installation are connected.
  • a radiator comprising two tubular collectors provided with a supply pipe and a discharge pipe and between which parallel pipes are fitted into holes previously drilled in the collectors and are welded or brazed to the outside.
  • radiator where the ends of the parallel pipes are mounted in holes previously punched in a metal strip and are welded to the outer surface of this strip.
  • a profile is placed on each strip and the profile is welded to the outside on the metal strip.
  • each collector comprises a U-shaped profile closed at both ends and provided with holes, in each hole one of the ends of one of the pipes fits parallel, which end is welded on the inside of the U-profile by a weld, a second U-profile closed at the ends which covers with its two legs the open side of the first U-profile, the end of each leg of one U-profiles being bent in a Z-shape inwards to form a groove, in which grooves the end of the legs of the other U-profile engages and is welded to it by means of a flat weld, so that the outer sides of the two U-profiles are in the same plane.
  • This radiator therefore has not only the advantage that the welds by which the parallel pipes are welded to the inside of the first U-shaped section are under milked at sight and do not require further shaping, but at the same time the two U-shaped sections are welded to each other by a flat weld which can be easily leveled.
  • each leg of this second U-shaped profile 6 is bent inwards in the shape of a Z, as a result of which a groove 8 is formed with a stop 9, which extends in a slope towards the end of the aforementioned leg.
  • a groove 8 is formed with a stop 9, which extends in a slope towards the end of the aforementioned leg.
  • the end of one of the legs of the first U-shaped section 3 is pushed.
  • the profon the size of each groove 8 is equal to the thickness of the legs of the first U-shaped section 3, so that the outer surfaces of the legs of the two U-shaped sections 3 and 6 are in the same plane.
  • each groove 8 By virtue of the sloping stop 9 of each groove 8, there remains an open space between the stop 9 and the leg of the first U-shaped section 3 which enters the groove 8, which open space is then welded by means of a weld flat 10 over the entire length of the manifold.
  • the flat weld can then be smoothed out without problems in a simple manner by means of an automatic device.

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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)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

Each header of the radiator comprises: a U-section (3) which is closed at the two ends and which is equipped with holes (2), into each of which fits one of the ends of one of the parallel pipes (1) of the radiator, this end being welded inside the U-section by means of a weld (5), a second U-section (6) closed at the two ends and covering with its two legs the open side of the first U-section, the end of each leg of one of the U-sections being bent inwards in a Z-shaped manner to form a groove (8), into which formed grooves the end of the legs of the other U-section engages and is welded there by means of a flush weld (10), in such a way that the outer faces of the two U-sections (3-6) are in the same plane. <IMAGE>

Description

L'invention concerne un radiateur pour chauffage central comprenant principalement plusieurs tuyaux parallèles dont les extrémités débouchent respectivement dans un collecteur auquel les conduites d'amenée et d'évacua­tion de l'installation de chauffage sont raccordées.The invention relates to a central heating radiator mainly comprising several parallel pipes, the ends of which open respectively into a manifold to which the supply and discharge pipes of the heating installation are connected.

On connaît un radiateur comprenant deux collecteurs tu­bulaires pourvus d'une conduite d'amenée et d'une con­duite d'évacuation et entre lesquels des tuyaux parallè­les sont emboîtés dans des trous préalablement forés dans les collecteurs et sont soudés ou brasés à l'ex­térieur.A radiator is known comprising two tubular collectors provided with a supply pipe and a discharge pipe and between which parallel pipes are fitted into holes previously drilled in the collectors and are welded or brazed to the outside.

Un important inconvénient de ce radiateur est que les soudures visibles sont vilainement achevées et que ce n'est qu'au moyen d'un façonnage pénible et coûteux que ces soudures peuvent être rendues proprement lisses.An important drawback of this radiator is that the visible welds are badly finished and that it is only by means of tedious and expensive shaping that these welds can be made properly smooth.

On connaît également un radiateur où les extrémités des tuyaux parallèles sont montés dans des trous préalable­ment poinçonnés dans une bande métallique et sont soudés à la surface extérieure de cette bande. Pour la formation ultérieure d'un collecteur aux deux extrémités des tuyaux, un profilé est placé sur chaque bande et le profilé est soudé à l'extérieur sur la bande métallique.There is also known a radiator where the ends of the parallel pipes are mounted in holes previously punched in a metal strip and are welded to the outer surface of this strip. For the subsequent formation of a collector at the two ends of the pipes, a profile is placed on each strip and the profile is welded to the outside on the metal strip.

Un inconvénient est que le montage préalable du profilé sur la bande métallique, avant que le soudage ne soit commencé, nécessite des calibres compliqués pour amener les extrémités des profilés et des bandes dans la juste position les uns par rapport aux autres, où ces extré­mités ne peuvent pas se toucher pour obtenir une ouver­ture suffisamment grande, nécessaire pour souder l'un à l'autre le profilé et la bande. Un autre inconvénient est qu'ainsi la réalisation de soudures d'angle au moyen d'un dispositif automatique est difficile à exécuter. Encore un autre inconvénient est que les soudures d'angle ne peuvent être égalisées rapidement et automatiquement qu'avec peine.A disadvantage is that the prior mounting of the profile on the metal strip, before welding is started, requires complicated gauges to bring the ends of the profiles and strips into the correct position relative to each other, where these ends do not cannot touch each other to obtain a sufficiently large opening, necessary to weld the profile and the strip to each other. Another disadvantage is that thus making corner welds by means of an automatic device is difficult to perform. Yet another disadvantage is that corner welds can only be leveled quickly and automatically with difficulty.

Pour remédier à ces inconvénients, selon la principale caractéristique de l'invention, un radiateur est réalisé dont chaque collecteur comprend un profilé en U fermé aux deux extrémités et pourvu de trous, dans chaque trou s'adapte une des extrémités d'un des tuyaux parallèles, laquelle extrémité est soudée du côté intérieur du profi­lé en U par une soudure, un deuxième profilé en U fermé aux extrémités qui couvre avec ses deux jambes le côté ouvert du premier profilé en U, l'extrémité de chaque jambe d'un des profilés en U étant pliée en forme de Z vers l'intérieur pour former une rainure, dans lesquelles rainures l'extrémité des jambes de l'autre profilé en U s'engage et y est soudée au moyen d'une soudure plate, de manière que les côtés extérieurs des deux profilés en U se trouvent dans un même plan.To overcome these drawbacks, according to the main characteristic of the invention, a radiator is produced in which each collector comprises a U-shaped profile closed at both ends and provided with holes, in each hole one of the ends of one of the pipes fits parallel, which end is welded on the inside of the U-profile by a weld, a second U-profile closed at the ends which covers with its two legs the open side of the first U-profile, the end of each leg of one U-profiles being bent in a Z-shape inwards to form a groove, in which grooves the end of the legs of the other U-profile engages and is welded to it by means of a flat weld, so that the outer sides of the two U-profiles are in the same plane.

Ce radiateur n'a donc pas seulement l'avantage que les soudures par lesquelles les tuyaux parallèles sont sou­dées au côté intérieur du premier profilé en U sont sous­ traites à la vue et ne nécessitent pas d'autre façonnage, mais qu'en même temps les deux profilés en U sont soudés l'un à l'autre par une soudure plate qui peut être faci­lement égalisée.This radiator therefore has not only the advantage that the welds by which the parallel pipes are welded to the inside of the first U-shaped section are under milked at sight and do not require further shaping, but at the same time the two U-shaped sections are welded to each other by a flat weld which can be easily leveled.

A titre d'exemple suit ci-après une description détail­lée d'une forme choisie mais nullement limitée du radia­teur conforme à l'invention. Cette description renvoie au dessin ci-annexé, dans lequel :

  • la fig. 1 représente une coupe horizontale d'une extré­mité du radiateur;
  • la fig. 2 représente une coupe verticale suivant la ligne II-II de la fig. 1.
By way of example below follows a detailed description of a chosen but not limited form of the radiator according to the invention. This description refers to the attached drawing, in which:
  • fig. 1 shows a horizontal section of one end of the radiator;
  • fig. 2 shows a vertical section along line II-II of FIG. 1.

Dans ces figures, on remarque que chaque extrémité des tuyaux parallèles 1 du radiateur s'ajuste dans un des trous 2 qui sont aménagés l'un en dessous de l'autre dans un premier profilé en U 3 fermé en haut et en bas et faisant partie d'un collecteur 4 à former le long des deux extrémités des tuyaux. Le long du côté intérieur du profilé en U 3 de chaque collecteur 4, les extrémités des tuyaux 1 sont soudées au moyen d'une soudure 5 au profilé en U 3, de sorte que la soudure est soustraite à la vue et qu'aucun autre façonnage n'est nécessaire. Pour fermer ensuite chaque collecteur 4, il est fait usage d'un deuxième profilé en U 6 fermé en haut et en bas et pourvu de manchons 7 à filetage dont un seul est visible dans le dessin et qui servent au raccordement des conduites d'amenée et d'évacuation de l'installation de chauffage central. L'extrémité de chaque jambe de ce deuxième profilé en U 6 est pliée vers l'intérieur en forme de Z, par suite de quoi une rainure 8 est formée avec une butée 9, qui s'étend en pente vers l'extrémité de la jambe précitée. Par-dessus chaque extrémité et dans la rainure 8 de chaque jambe, l'extrémité d'une des jambes du premier profilé en U 3 est poussée. La profon­ deur de chaque rainure 8 est égale à l'épaisseur des jambes du premier profilé en U 3, de sorte que les sur­faces extérieures des jambes des deux profilés en U 3 et 6 se trouvent dans un même plan. Grâce à la butée 9 en pente de chaque rainure 8, il reste un espace ouvert entre la butée 9 et la jambe du premier profilé en U 3 s'introduisant dans la rainure 8, lequel espace ouvert est ensuite soudé au moyen d'une soudure plate 10 sur toute la longueur du collecteur. La soudure plate peut ensuite être aplanie sans problèmes d'une manière simple au moyen d'un dispositif automatique.In these figures, we note that each end of the parallel pipes 1 of the radiator fits into one of the holes 2 which are arranged one below the other in a first U-shaped profile 3 closed at the top and bottom and making part of a manifold 4 to be formed along the two ends of the pipes. Along the inner side of the U-shaped profile 3 of each manifold 4, the ends of the pipes 1 are welded by means of a weld 5 to the U-shaped profile 3, so that the weld is hidden from view and that no other shaping is not necessary. To then close each manifold 4, use is made of a second U-shaped profile 6 closed at the top and bottom and provided with sleeves 7 with threads, only one of which is visible in the drawing and which are used to connect the supply lines. and evacuation of the central heating installation. The end of each leg of this second U-shaped profile 6 is bent inwards in the shape of a Z, as a result of which a groove 8 is formed with a stop 9, which extends in a slope towards the end of the aforementioned leg. Over each end and in the groove 8 of each leg, the end of one of the legs of the first U-shaped section 3 is pushed. The profon the size of each groove 8 is equal to the thickness of the legs of the first U-shaped section 3, so that the outer surfaces of the legs of the two U-shaped sections 3 and 6 are in the same plane. By virtue of the sloping stop 9 of each groove 8, there remains an open space between the stop 9 and the leg of the first U-shaped section 3 which enters the groove 8, which open space is then welded by means of a weld flat 10 over the entire length of the manifold. The flat weld can then be smoothed out without problems in a simple manner by means of an automatic device.

Il va de soi que les pièces constitutives décrites ci-­dessus peuvent différer quant à leur forme, leurs dimen­sions et leur nombre à condition qu'elles restent dans le cadre de l'invention.It goes without saying that the constituent parts described above may differ as to their shape, their dimensions and their number provided that they remain within the scope of the invention.

Claims (3)

1.- Radiateur pour chauffage central et consistant prin­cipalement en plusieurs tuyaux (1) parallèles, dont les extrémités débouchent respectivement dans un collecteur (4), auquel les conduites d'amenée et d'évacuation du chauffage central sont raccordées, caractérisé par le fait que chaque collecteur (4) comprend un profilé en U (3) fermé aux deux extrémités et pourvu de trous (2), où dans chaque trou s'ajuste une des extrémités d'un des tuyaux parallèles (1), laquelle extrémité est soudée par une soudure (5) au côté intérieur du profilé en U (3), un deuxième profilé en U (6) fermé aux extrémités, qui couvre de ses deux jambes le côté ouvert du premier pro­filé en U (3), l'extrémité de chaque jambe d'un des pro­filés (3-6) étant pliée vers l'intérieur en forme de Z pour former une rainure (8), dans lesquelles rainures formées l'extrémité des jambes de l'autre profilé en U s'introduit et y est soudée au moyen d'une soudure plate (10), de telle sorte que les côtés extérieurs des deux profilés en U (3-6) se trouvent dans un même plan.1.- Radiator for central heating and consisting mainly of several parallel pipes (1), the ends of which open respectively into a collector (4), to which the central heating supply and evacuation pipes are connected, characterized by the fact that each manifold (4) comprises a U-shaped profile (3) closed at both ends and provided with holes (2), where in each hole fits one end of one of the parallel pipes (1), which end is welded by a weld (5) on the inner side of the U-shaped profile (3), a second U-shaped profile (6) closed at the ends, which covers with its two legs the open side of the first U-shaped profile (3), the end of each leg of one of the profiles (3-6) being bent inwards in the form of a Z to form a groove (8), in which grooves formed the ends of the legs of the other U-profile are introduced and is welded to it by means of a flat weld (10), of te so that the outer sides of the two U-shaped profiles (3-6) are in the same plane. 2.- Radiateur conforme à la revendication 1, caractérisé par le fait que dans l'extrémité de chaque jambe du deuxième profilé en U (6) qui recouvre le premier profilé en U (3), une rainure (8) en forme de Z tournée vers l'intérieur est formée, par-dessus laquelle extrémité des deux jambes et dans les rainures (8) s'engage l'ex­trémité des jambes du premier profilé en U (3) avec les trous (2) et sont soudées l'une à l'autre du côté ex­térieur.2.- Radiator according to claim 1, characterized in that in the end of each leg of the second U-shaped profile (6) which covers the first U-shaped profile (3), a Z-shaped groove (8) turned towards the inside is formed, over which end of the two legs and in the grooves (8) engages the end of the legs of the first U-shaped section (3) with the holes (2) and are welded to it one to the other on the outside. 3.- Radiateur conforme à la revendication 2, caractéri­sé par le fait que dans l'extrémité de chaque jambe du deuxième profilé en U (6) la rainure (8) formée possède une butée (9) dirigée en pente vers l'extrémité de la­dite jambe, contre laquelle l'extrémité d'une des jambes du premier profilé en U (3) s'appuie et que l'espace ouvert ainsi formé entre la butée et l'extrémité de jambe dernière nommée est soudée par une soudure plate (10) et est égalisée.3.- Radiator according to claim 2, characterized in that in the end of each leg of the second U-shaped section (6) the groove (8) formed has a stop (9) sloping towards the end of said leg, against which the end of one of the legs of the first U-shaped section (3) rests and that the open space thus formed between the stop and the he last leg end is welded by a flat weld (10) and is leveled.
EP89202858A 1988-11-30 1989-11-10 Radiator for a central-heating system Expired - Lifetime EP0371532B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE8801350A BE1002279A6 (en) 1988-11-30 1988-11-30 Radiator for central heating.
BE8801350 1988-11-30

Publications (2)

Publication Number Publication Date
EP0371532A1 true EP0371532A1 (en) 1990-06-06
EP0371532B1 EP0371532B1 (en) 1993-06-09

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ID=3883749

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89202858A Expired - Lifetime EP0371532B1 (en) 1988-11-30 1989-11-10 Radiator for a central-heating system

Country Status (3)

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EP (1) EP0371532B1 (en)
BE (1) BE1002279A6 (en)
DE (1) DE68907027T2 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2664370A1 (en) * 1989-02-17 1992-01-10 Diesel Kiki Co Heat exchanger of the type with parallel flow, mounted on a vehicle
US5113934A (en) * 1990-10-17 1992-05-19 Valeo Thermique Moteur Heat exchanger of reduced width
US5205354A (en) * 1992-01-28 1993-04-27 Lesage Philip G Vehicle radiator and method of making
EP0745820A1 (en) * 1995-05-30 1996-12-04 Sanden Corporation Header of heat exchanger
US6061904A (en) * 1995-05-30 2000-05-16 Sanden Corporation Heat exchanger and method for manufacturing the same
WO2000045106A1 (en) * 1999-01-29 2000-08-03 Norsk Hydro Asa Manifold for heat exchanger
US6929059B2 (en) * 2001-04-09 2005-08-16 Halla Climate Control Corporation Aluminum radiator and method of manufacturing tank thereof
EP1811220A2 (en) * 2006-01-18 2007-07-25 Liebert Hiross S.p.A. Method for joining tubular elements made of stainless steel, an alloy thereof, aluminum or other equivalent metallic materials
DE102009025521A1 (en) 2009-06-19 2010-12-23 Kurt Preissler Tube heating element i.e. decorative bath heating element, has transverse pipes connected with collecting pipes, where connections of transverse pipes consist of sleeves that are sealed to outer side, plugged and frictionally clamped

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB152734A (en) * 1919-07-14 1920-10-14 Ernest Joseph Richards Improvements in tubes for honeycomb and like radiators and like heat exchangers
DE588023C (en) * 1933-11-13 Eugen Wolf Dr Welding socket connection
CH202300A (en) * 1937-12-30 1939-01-15 Sulzer Ag Welded connection on pipes.
FR1129585A (en) * 1955-07-12 1957-01-23 Chausson Usines Sa Heat exchanger device for the circulation of various fluids
DE2205954A1 (en) * 1971-02-12 1972-08-24 Schelde Nl Method for welding two pipe sections
DE2801043A1 (en) * 1978-01-11 1979-07-12 Hebben Rolf Dipl Volksw Muffs in mining pressure jet pipeline - have cylindrical insert end on pipe side, ending on muff side at joint whose surfaces run radially
FR2475708A1 (en) * 1980-02-07 1981-08-14 Runtal Holding Co Sa PARALLEL FLAT TUBE TYPE HEAT EXCHANGER BETWEEN THEM
GB2082312A (en) * 1980-08-21 1982-03-03 Imi Radiators Header tank construction
US4770240A (en) * 1985-05-13 1988-09-13 Stark Manufacturing, Inc. Manifold for a heat exchanger

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE588023C (en) * 1933-11-13 Eugen Wolf Dr Welding socket connection
GB152734A (en) * 1919-07-14 1920-10-14 Ernest Joseph Richards Improvements in tubes for honeycomb and like radiators and like heat exchangers
CH202300A (en) * 1937-12-30 1939-01-15 Sulzer Ag Welded connection on pipes.
FR1129585A (en) * 1955-07-12 1957-01-23 Chausson Usines Sa Heat exchanger device for the circulation of various fluids
DE2205954A1 (en) * 1971-02-12 1972-08-24 Schelde Nl Method for welding two pipe sections
DE2801043A1 (en) * 1978-01-11 1979-07-12 Hebben Rolf Dipl Volksw Muffs in mining pressure jet pipeline - have cylindrical insert end on pipe side, ending on muff side at joint whose surfaces run radially
FR2475708A1 (en) * 1980-02-07 1981-08-14 Runtal Holding Co Sa PARALLEL FLAT TUBE TYPE HEAT EXCHANGER BETWEEN THEM
GB2082312A (en) * 1980-08-21 1982-03-03 Imi Radiators Header tank construction
US4770240A (en) * 1985-05-13 1988-09-13 Stark Manufacturing, Inc. Manifold for a heat exchanger

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2664370A1 (en) * 1989-02-17 1992-01-10 Diesel Kiki Co Heat exchanger of the type with parallel flow, mounted on a vehicle
US5113934A (en) * 1990-10-17 1992-05-19 Valeo Thermique Moteur Heat exchanger of reduced width
US5205354A (en) * 1992-01-28 1993-04-27 Lesage Philip G Vehicle radiator and method of making
EP0745820A1 (en) * 1995-05-30 1996-12-04 Sanden Corporation Header of heat exchanger
US6035931A (en) * 1995-05-30 2000-03-14 Sanden Corporation Header of heat exchanger
US6061904A (en) * 1995-05-30 2000-05-16 Sanden Corporation Heat exchanger and method for manufacturing the same
WO2000045106A1 (en) * 1999-01-29 2000-08-03 Norsk Hydro Asa Manifold for heat exchanger
US6929059B2 (en) * 2001-04-09 2005-08-16 Halla Climate Control Corporation Aluminum radiator and method of manufacturing tank thereof
EP1811220A2 (en) * 2006-01-18 2007-07-25 Liebert Hiross S.p.A. Method for joining tubular elements made of stainless steel, an alloy thereof, aluminum or other equivalent metallic materials
EP1811220A3 (en) * 2006-01-18 2008-11-12 Emerson Network Power S.R.L. Method for joining tubular elements made of stainless steel, an alloy thereof, aluminum or other equivalent metallic materials
DE102009025521A1 (en) 2009-06-19 2010-12-23 Kurt Preissler Tube heating element i.e. decorative bath heating element, has transverse pipes connected with collecting pipes, where connections of transverse pipes consist of sleeves that are sealed to outer side, plugged and frictionally clamped

Also Published As

Publication number Publication date
DE68907027T2 (en) 1993-11-18
BE1002279A6 (en) 1990-11-13
EP0371532B1 (en) 1993-06-09
DE68907027D1 (en) 1993-07-15

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