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EP1764571B1 - Echageur de chaleur, en particulier radiateur, pour système de climatisation - Google Patents

Echageur de chaleur, en particulier radiateur, pour système de climatisation Download PDF

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Publication number
EP1764571B1
EP1764571B1 EP06015635.3A EP06015635A EP1764571B1 EP 1764571 B1 EP1764571 B1 EP 1764571B1 EP 06015635 A EP06015635 A EP 06015635A EP 1764571 B1 EP1764571 B1 EP 1764571B1
Authority
EP
European Patent Office
Prior art keywords
flat
flat tubes
heat exchanger
impressions
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.)
Not-in-force
Application number
EP06015635.3A
Other languages
German (de)
English (en)
Other versions
EP1764571A1 (fr
Inventor
Matthias Dipl.-Ing. Traub
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mahle Behr GmbH and Co KG
Original Assignee
Mahle Behr GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mahle Behr GmbH and Co KG filed Critical Mahle Behr GmbH and Co KG
Publication of EP1764571A1 publication Critical patent/EP1764571A1/fr
Application granted granted Critical
Publication of EP1764571B1 publication Critical patent/EP1764571B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F28D1/05383—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits

Definitions

  • the invention relates to a radiator for an air conditioner with flat tubes, which are flowed through in a direction of coolant and between which Heilieit stylesen are arranged, which are flowed around by air or other medium.
  • a heat exchanger for motor vehicles which comprises a plurality of flat tubes, which are traversed by a liquid cooling medium. Between the flat tubes are arranged by ambient air or other media acted upon corrugated fins, wherein the flat tubes have on at least one of its flat sides inwardly directed indentations.
  • Conventional heat exchangers, in particular radiators, for air conditioning systems are usually equipped with deflections, so that they are flowed through several times.
  • some investment concepts which, for example, have a coolant inlet arranged at the bottom and a coolant outlet arranged at the top, simply through-flow heat exchangers are to be preferred, since due to the simple flow through a natural stratification occurs.
  • the present invention provides a compromise between the requirement for high heat output and the goal of keeping the coolant side pressure drop as small as possible.
  • the relatively large inner diameter of the pipe leads to a relatively small pressure drop on the coolant side, but also to lower heat output.
  • this disadvantage can be overcome by the partial imprints, which are also referred to as winglets.
  • the indentations improve the heat transfer on the coolant side, whereby the coolant-side pressure drop does not rise or only moderately increases with a suitable geometry of the impressions.
  • a radiator according to the invention is characterized in that the indentations have a depth of 0.1 to 0.4 mm. These values have proven to be particularly advantageous in the context of the present invention.
  • An inventive radiator is characterized in that the flat tubes have a clear inner tube width of 1.3 to 1.5 mm. Preferably, the flat tubes have a clear tube width of 1.38 mm. In this case, customary manufacturing tolerances must be taken into account.
  • An inventive radiator is characterized in that the indentations are formed by elongated depressions, which are provided on each flat side of the flat tubes.
  • An alternative radiator according to the invention is also characterized in that the indentations are formed by elongated recesses which are respectively provided on both flat sides of the flat tubes.
  • a radiator according to the invention is also characterized in that impressions are also formed in the shape of a knob.
  • impressions are also formed in the shape of a knob.
  • FIG. 1 a heat exchanger 1 is shown in plan view.
  • the heat exchanger 1 is a radiator of an air conditioning system of a motor vehicle.
  • the heat exchanger 1 comprises a lower collection box 4, which is equipped with an inlet connection 5, through which, as indicated by an arrow 6, coolant enters the heat exchanger 1.
  • the heat exchanger 1 has an upper collecting box 7, which is equipped with an outlet nozzle 8, through which, as indicated by an arrow 10, the coolant exits the heat exchanger 1.
  • the two header boxes 4, 7 are connected by a plurality of flat tubes, which are simply flowed through in the direction of an arrow 14 by the coolant. Between each two flat tubes, a gap is provided in which an air guide, in particular a corrugated fin is arranged.
  • the louvers between the flat tubes are perpendicular to the plane of the FIG. 1 flows through a medium, in particular of ambient air.
  • FIG. 2 is a portion of a flat tube 20 of the in FIG. 1 shown heat exchanger shown in perspective.
  • the flat tube 20 has in the Center on a longitudinal bead 22, which serves to give the flat tube 20 a greater rigidity. Because of the bead 22, the flat tube 20 is also referred to as a bead tube.
  • the flat tube 20 comprises an upper flat side 24 and a lower flat side 25.
  • the two flat sides 24, 25 are provided with a plurality of elongated depressions 26 to 29.
  • flat tubes with the outside dimensions 26.0 ⁇ 1.9 ⁇ 0.26 mm 3 are mainly used. These flat tubes have a clear inner tube width of 1.38 mm. The height of the impressions is in the range of 0.1 to 0.4 mm. Due to the height of the indentations, the heat transfer on the coolant side can be varied until a desired performance result is achieved.
  • FIG. 3 nine different rectangular sections are shown, each representing an embodiment of a flat tube in plan view. Solid lines show various impressions in the visible flat side of the respective flat tube. With dashed lines indentations in the underlying flat side of the respective flat tube are indicated.
  • the flat tube 31 includes a plurality of indentations 41, 42, which are each arranged in pairs V-shaped to each other. In the invisible flat side of the flat tube 31 also impressions 44, 45 are formed, which complement with the indentations 41, 42 to a rhombus.
  • the flat tubes 32 and 33 show further V-shaped or diamond-shaped arrangements of oblong indentations.
  • the flat tubes 34 and 36 show X-shaped arrangements of impressions with the two flat sides of the respective flat tube.
  • the flat tube 35 in turn has V-shaped impressions.
  • the flat tube 37 is formed identically to the flat tube 31.
  • the flat tubes 38 and 39 according to the invention, in addition to elongated impressions or depressions, as shown in FIGS. 31 and 37, also have knob-like embossments 51 to 54.
  • the flat tubes 31 to 39 are each flowed through from bottom to top.

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)

Claims (1)

  1. Radiateur pour un système de climatisation comprenant des tubes plats (20 ; 31-39) qui sont traversés, dans une direction, par un liquide de refroidissement, et entre lesquels sont disposés des dispositifs déflecteurs d'air qui sont baignés par de l'air ou par un autre milieu, caractérisé en ce que les tubes plats (20 ; 31-39) présentent un diamètre tubulaire intérieur de 1,3 mm à 1,5 mm et des parties en creux (26-29 ; 41-45, 51-54) qui s'étendent dans l'espace intérieur des tubes plats, où les parties en creux (26-29 ; 41-45, 51-54) présentent une profondeur de 0,1 mm à 0,4 mm, où les parties en creux sont formées par des évidements allongés qui sont prévus à chaque fois sur un côté plat des tubes plats ou qui sont prévus à chaque fois sur les deux côtés plats des tubes plats et où des parties en creux (51-54) sont configurées aussi en forme de tétons.
EP06015635.3A 2005-09-17 2006-07-27 Echageur de chaleur, en particulier radiateur, pour système de climatisation Not-in-force EP1764571B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510044558 DE102005044558A1 (de) 2005-09-17 2005-09-17 Wärmeübertrager, insbesondere Heizkörper, für eine Klimaanlage

Publications (2)

Publication Number Publication Date
EP1764571A1 EP1764571A1 (fr) 2007-03-21
EP1764571B1 true EP1764571B1 (fr) 2017-04-12

Family

ID=37517125

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06015635.3A Not-in-force EP1764571B1 (fr) 2005-09-17 2006-07-27 Echageur de chaleur, en particulier radiateur, pour système de climatisation

Country Status (2)

Country Link
EP (1) EP1764571B1 (fr)
DE (1) DE102005044558A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2630754B1 (es) * 2016-02-19 2018-03-07 Valeo Térmico, S. A. Canal de circulación para la conducción de un fluido de un intercambiador de calor, e intercambiador de calor
EP3270085B1 (fr) * 2016-07-12 2019-11-06 Borgwarner Emissions Systems Spain, S.L.U. Échangeur thermique pour système egr
CN109489466A (zh) * 2018-11-13 2019-03-19 哈尔滨工程大学 一种具有交错凹凸结构的换热器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5730213A (en) * 1995-11-13 1998-03-24 Alliedsignal, Inc. Cooling tube for heat exchanger
SE516992C2 (sv) * 1999-10-07 2002-04-02 Jaerlaasa Faergindustrier Ab Linolja och förfarande för dess framställning
DE10127084B4 (de) * 2000-06-17 2019-05-29 Mahle International Gmbh Wärmeübertrager, insbesondere für Kraftfahrzeuge
DE10242311A1 (de) * 2002-09-12 2004-03-18 Modine Manufacturing Co., Racine Kühlmittelkühler
KR100950714B1 (ko) * 2003-05-29 2010-03-31 한라공조주식회사 열교환기용 플레이트
WO2005005904A1 (fr) * 2003-07-15 2005-01-20 Outokumpu Copper Products Oy Tube de transfert thermique sous pression et son procede de fabrication
DE102004045018B4 (de) * 2003-09-30 2019-08-01 Mahle International Gmbh Verfahren zur Herstellung eines flachen Rohres für einen Wärmetauscher eines Kraftfahrzeugs, flaches Rohr, Verfahren zur Herstellung eines Wärmetauschers und Wärmetauscher

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DE102005044558A1 (de) 2007-03-29
EP1764571A1 (fr) 2007-03-21

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