EP1398589B1 - Radiateur pour liquide de refroidissement - Google Patents

Radiateur pour liquide de refroidissement Download PDF

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Publication number
EP1398589B1
EP1398589B1 EP03016862A EP03016862A EP1398589B1 EP 1398589 B1 EP1398589 B1 EP 1398589B1 EP 03016862 A EP03016862 A EP 03016862A EP 03016862 A EP03016862 A EP 03016862A EP 1398589 B1 EP1398589 B1 EP 1398589B1
Authority
EP
European Patent Office
Prior art keywords
mff
coolant
cooling
flat tubes
cooling network
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
EP03016862A
Other languages
German (de)
English (en)
Other versions
EP1398589A2 (fr
EP1398589A3 (fr
Inventor
Ralf Dipl.-Ing. Beck
Jörg Dr.-Ing. Soldner
Werner Dipl.-Ing. Nitsche
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.)
Modine Manufacturing Co
Original Assignee
Modine Manufacturing Co
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 Modine Manufacturing Co filed Critical Modine Manufacturing Co
Publication of EP1398589A2 publication Critical patent/EP1398589A2/fr
Publication of EP1398589A3 publication Critical patent/EP1398589A3/fr
Application granted granted Critical
Publication of EP1398589B1 publication Critical patent/EP1398589B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
    • F28F3/044—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being pontual, e.g. dimples
    • 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
    • F28D1/0535—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 the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements
    • 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
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core

Definitions

  • the invention relates to a coolant radiator for motor vehicles according to the preamble of claim 1.
  • coolant coolers are known from DE 42 32 366 A1 or from US 5 555 930.
  • DE 42 32 366 is an oil cooler.
  • US 5 555 930 an engine coolant radiator is addressed, which has side parts which are formed as a flat tube with lateral flanks.
  • Further coolant coolers are known, for example, from EP 693 617 B1 or from DE 43 28 448 C2. These coolant coolers are so-called cross-flow coolers, as they are very often found in cars. The cooler probably has a soldered cooling system.
  • Such cooling grids usually have on both opposite sides, on which no collection boxes are arranged, that is parallel to the longitudinal axis of the flat tubes, a so-called inner side part, which is also made of aluminum sheet cooling network a - possibly deformed - aluminum sheet.
  • the inner side panels are soldered to the farthest side fins and also connected to the header boxes.
  • Coolant coolers often also have outer side parts, which are provided, for example, to reinforce the coolant radiator and to fasten it in the motor vehicle.
  • the inner side panels give the cooling system the required strength. They affect the manufacturing costs and of course also include in the weight of the coolant radiator.
  • cooler components consist of at least one lower or upper separated pipe of the row of tubes of the cooling network, which are designed as a vent pipe or as a suction pipe.
  • the tubes of the row of tubes are all formed in the same way for reasons of economy.
  • the separated tubes are at least not fully available for the operational heat exchange.
  • a lower connecting line is provided as a cooler component, which is a part (several flat tubes) of the cooling network.
  • a check valve is required in order to separate the pressure-side header from the suction-side header, so that during operation as uniform as possible flow of all flat tubes can take place.
  • the object of the invention is to provide a coolant cooler with a stable cooling network, which without having to be changed, can be used or used for coolers with integrated filling function.
  • the radiator component is a multi-functional flat tube (MFF) with a larger moment of resistance than the other flat tubes whose ends are fluidly connected to the two manifolds, which performs the function of an inner side part of the cooling network and as filling for filling the cooling circuit is usable.
  • MFF multi-functional flat tube
  • the proposed cooling network is at least as stable as a cooling network with conventional inner side panels, because the MFF has a correspondingly high resistance moment.
  • the cooling network has a MFF on both sides. They are firmly soldered to the outer fin.
  • they are connected in identical manner with the flat tubes of the cooling network with the collecting tanks, or connected to the collecting tanks associated tube plates, so that the coolant can flow through the multi-functional flat tubes. They also preferably have the same length (cooling network height) and width (cooling network depth) as the other flat tubes.
  • the cooling network can also consist of several rows of flat tubes.
  • the width of the MFF is sufficient over the entire cooling network depth, but the width of the MFF is a multiple of the width of the flat tubes corresponding to the number of rows of tubes, which also includes the distance between the rows of tubes.
  • the coolant radiator according to claim 2 is designed as a downflow radiator with an overhead inlet collecting box and a bottom outlet collection box and provided for heavy motor vehicles in order to cool the cooling liquid of the internal combustion engine. The previously required for heavy vehicles outside laid filling for the cooling system can be omitted.
  • the features of claim 3 provide manufacturing advantages in connection with the above-mentioned identical connection of the MFF with the collection boxes.
  • the claim 4 describes possible embodiments of the MFF.
  • the person skilled in the art selects a suitable inner insert for the MFF and / or forms the MFF by deformation in such a way that the quantity of cooling liquid to be replenished can be introduced into the cooling circuit in a reasonable time.
  • the flow resistance and / or the cross-sectional size of the MFF are different from that of a single flat tube.
  • the cross-sectional size of the MFF is greater than that of a single flat tube.
  • the temperature distribution usually has a parabolic shape across the width of the radiator, the maximum being approximately in the middle of the cooling network.
  • the outer flat tubes are usually poorly flowed through and hardly involved in the heat exchange.
  • the flat tubes of the coolant radiator are very flat tubes with a height (small diameter) of only about 1.8 mm, which have no internal inserts.
  • the MFF is a flat tube, in which the height (small diameter), for example, 10 mm - at least a multiple of the other flat tubes - amounts to.
  • the coolant radiator is intended for use in heavy vehicles. It is a so-called down-flow cooler, in which the inlet header 1 is arranged at the top and the outlet header 2 at the bottom.
  • the entry collection box 1 has an inlet connection 15 and the outlet collection box 2 has a corresponding outlet connection 16 , with which the cooler is integrated together with a compensation tank (also not shown) and with other associated elements in a cooling circuit (not shown).
  • Corresponding flow arrows are shown.
  • the coolant radiator has a soldered cooling network, which consists of alternately arranged flat tubes 3 and cooling fins 4 in a known manner. In the embodiments shown, the preferred embodiment has been shown, after each of which a multi-functional flat tube MFF is arranged on both sides of the cooling network.
  • the MFF is soldered to the most laterally disposed cooling fin 4 to achieve good heat transfer.
  • the MFF takes over the function of otherwise usual inner side parts, ie such side parts can be omitted.
  • the tube shape of the MFF has a higher resistance moment Wx , Wy , (Fig. 7) compared to the conventional flat, inner side parts so that it can be made of thinner sheet metal in comparison, without increasing the weight of the cooling net or stability to reduce the cooling network.
  • the moment of resistance Wx, Wy of the MFF is substantially greater than the moment of resistance of a single flat tube 3 , since it is made of thicker sheet b and has a much greater height ("smaller diameter" d ) than the flat tubes 3 .
  • Figures 1 and 2 show the narrow sides of the flat tubes 3 and the narrow sides of the MFF .
  • the MFF has the same cooling network depth t ("large diameter") and the same cooling network height h (length) as the other flat tubes 3 . It is fluidically connected in the same way as the flat tubes 3 with manifolds 1 and 2 , which can be seen from the Fig. 4 to be described later, and it is therefore involved in the cooling process.
  • the MFF have a filling function. Therefore, a filling opening 12 is provided at the entry collecting box 1 and a filling line 10 which is fixed to the wall 9 of the entry collecting box 1 . From Fig.
  • the space enclosed by the entry collection box 1 is divided into three chambers 17 , 18 and 19 . This division is achieved by the arrangement of two partitions 13 , which substantially separate the chambers 17 and 19 , in each of which the end 5 of the MFF opens, from the middle chamber 18 in terms of flow.
  • the filling line 10 leads from the filling opening 12 to the two chambers 17 and 19th
  • the MFF has a "small diameter" d (height) of just over 10 mm and could be formed as shown in FIG.
  • the wide walls 7 of the MFF have in this embodiment inwardly directed projections 8 , which are soldered together.
  • the internal flow resistance of the MFF ensures the filling of the circuit in a timely manner.
  • the filling is usually carried out via the expansion tank, not shown, from which a line, also not shown, goes to the filling opening 12 .
  • the expansion tank can be located directly on the entrance collection box 1 .
  • the upwardly escaping during the filling of the cooling circuit air passes through a radiator vent 30 , which is integrated in the lid 31 of the filling opening 12 . (FIG. 3) It can also be explained with reference to FIG. 3 that only one half of the cooler is shown there, in which the filling opening 12 is arranged approximately in the middle thereof.
  • the MFF has a suitable inner liner 26 .
  • the inner insert 26 is soldered for stability reasons and because of better heat transfer firmly in the MFF .
  • the MFF has at its ends 5 a bead 20 or the like deformation.
  • This bead 20 serves as a stop of the MFF during assembly of the cooling network, ie the flat tubes 3 and the cooling fins 4 with the tubesheets 21, which are assembled before performing the soldering process.
  • openings 22 are provided which are provided with a collar 23 in order to achieve a quality-matched soldering of the inserted into the openings 22 pipe ends.
  • the collar 23 are directed towards the cooling network.
  • the tubesheets 21 have a circumferential groove 24 with a seal 25 disposed therein, in order to connect the edge of the headers 1 , 2 made of plastic firmly and tight mechanically. (Fig. 4)
  • FIGS. 5 and 7 show a welded MFF
  • FIG. 6 shows a brazed MFF in several views, with the pictures speaking for themselves.
  • the formation of the MFF with separate parallel chambers was not shown in the drawing.
  • Such embodiments can be taken from the prior art. For example, have the broad walls 7 inwardly directed longitudinal beads which touch and which are soldered together.
  • the longitudinal corrugations are formed similar to the projections 8 , with the difference that they pass through the entire tube length.

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)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)

Claims (7)

  1. Radiateur pour liquide de refroidissement pour un véhicule automobile avec une cuve collectrice d'entrée (1), une cuve collectrice de sortie (2), un circuit de refroidissement brasé, composé de tubes plats (3) et d'ailettes de refroidissement (4), avec une hauteur de circuit de refroidissement (h) et une profondeur de circuit de refroidissement (t) définies, les tubes plats (3) reliant les deux cuves collectrices (1, 2), et avec un élément de radiateur disposé sur un ou sur les deux côtés du circuit de refroidissement et relié par brasage avec l'ailette de refroidissement (4) adjacente et avec les cuves collectrices (1, 2), l'élément de radiateur étant un tube plat multifonction (MFF) présentant un moment de résistance (Wx, Wy) supérieur à celui d'un tube plat (3) individuel, les extrémités (5) du MFF étant reliées aux deux cuves collectrices (1, 2) de sorte qu'il peut être parcouru par le liquide de refroidissement et qu'il remplit la fonction d'une partie latérale interne du circuit de refroidissement, caractérisé en ce que le MFF a une fonction de remplissage, en ce qu'une conduite de remplissage (10) allant d'une ouverture de remplissage (12) jusqu'au MFF est disposée sur la paroi (9) de la cuve collectrice d'entrée (1) et en ce qu'une cloison (13) entre le MFF et le tube plat (3) adjacent est disposée dans la cuve collectrice d'entrée (1) afin de séparer le MFF du liquide de refroidissement en circulation.
  2. Radiateur pour liquide de refroidissement selon la revendication 1, caractérisé en ce que le radiateur pour liquide de refroidissement est un radiateur à flux descendant avec la cuve collectrice d'entrée (1) située en haut et la cuve collectrice de sortie (2) située en bas, prévu pour des véhicules automobiles lourds, des fonds à tubes (21), présentant de manière connue des ouvertures (22) pour recevoir les extrémités des tubes plats (3) et présentant la au moins une ouverture pour recevoir une extrémité (5) du MFF, étant affectés aux cuves collectrices (1, 2).
  3. Radiateur pour liquide de refroidissement selon la revendication 1 ou 2, caractérisé en ce que le MFF a la même hauteur de circuit de refroidissement (h) et la même profondeur de circuit de refroidissement (t) que les autres tubes plats (3) et est brasé sur les cuves collectrices (1, 2) selon une construction identique à celle des autres tubes plats (3).
  4. Radiateur pour liquide de refroidissement selon l'une des revendications 1 à 3, caractérisé en ce que le MFF est un tube brasé ou soudé qui soit possède un insert intérieur (6) approprié, soit dont les parois larges (7) sont subdivisées en plusieurs chambres séparées au moyen d'une déformation appropriée, soit dont les parois larges (7) possèdent des saillies (8) orientées vers l'intérieur et reliées entre elles.
  5. Radiateur pour liquide de refroidissement selon l'une des revendications précédentes, caractérisé en ce que la résistance hydraulique interne du MFF est inférieure à celle des autres tubes plats (3).
  6. Radiateur pour liquide de refroidissement selon l'une des revendications précédentes, caractérisé en ce que l'épaisseur de la tôle et la hauteur (d) (petit diamètre) du MFF sont nettement supérieures à celles des tubes plats (3).
  7. Radiateur pour liquide de refroidissement selon l'une des revendications précédentes, caractérisé en ce que la conduite de remplissage (10) présente une pente en direction du MFF afin de répondre à l'exigence d'une pose des conduites remontant du bas vers le haut.
EP03016862A 2002-09-12 2003-07-24 Radiateur pour liquide de refroidissement Expired - Lifetime EP1398589B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10242311A DE10242311A1 (de) 2002-09-12 2002-09-12 Kühlmittelkühler
DE10242311 2002-09-12

Publications (3)

Publication Number Publication Date
EP1398589A2 EP1398589A2 (fr) 2004-03-17
EP1398589A3 EP1398589A3 (fr) 2005-10-05
EP1398589B1 true EP1398589B1 (fr) 2007-04-18

Family

ID=31724688

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03016862A Expired - Lifetime EP1398589B1 (fr) 2002-09-12 2003-07-24 Radiateur pour liquide de refroidissement

Country Status (4)

Country Link
US (1) US6904965B2 (fr)
EP (1) EP1398589B1 (fr)
AT (1) ATE360182T1 (fr)
DE (2) DE10242311A1 (fr)

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DE102014010632A1 (de) 2014-07-17 2016-01-21 Modine Manufacturing Company Gelöteter Wärmetauscher und Herstellungsverfahren

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DE102004057526B4 (de) * 2003-12-03 2020-08-20 Denso Corporation Stapelkühler
DE10359806A1 (de) * 2003-12-19 2005-07-14 Modine Manufacturing Co., Racine Wärmeübertrager mit flachen Rohren und flaches Wärmeübertragerrohr
US7159648B2 (en) * 2004-04-23 2007-01-09 Modine Manufacturing Company Weather protected heat exchanger
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US8424592B2 (en) 2007-01-23 2013-04-23 Modine Manufacturing Company Heat exchanger having convoluted fin end and method of assembling the same
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Publication number Priority date Publication date Assignee Title
DE102014010632A1 (de) 2014-07-17 2016-01-21 Modine Manufacturing Company Gelöteter Wärmetauscher und Herstellungsverfahren

Also Published As

Publication number Publication date
DE10242311A1 (de) 2004-03-18
EP1398589A2 (fr) 2004-03-17
US6904965B2 (en) 2005-06-14
US20040112577A1 (en) 2004-06-17
DE50307061D1 (de) 2007-05-31
ATE360182T1 (de) 2007-05-15
EP1398589A3 (fr) 2005-10-05

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