EP1564516A2 - Echangeur de chaleur, en particulier refroidisseur d'huile pour véhicule - Google Patents

Echangeur de chaleur, en particulier refroidisseur d'huile pour véhicule Download PDF

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Publication number
EP1564516A2
EP1564516A2 EP05001625A EP05001625A EP1564516A2 EP 1564516 A2 EP1564516 A2 EP 1564516A2 EP 05001625 A EP05001625 A EP 05001625A EP 05001625 A EP05001625 A EP 05001625A EP 1564516 A2 EP1564516 A2 EP 1564516A2
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
exchanger according
chamber
tubes
openings
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.)
Withdrawn
Application number
EP05001625A
Other languages
German (de)
English (en)
Inventor
Wolfgang Geiger
Karl-Heinz Dipl.-Ing. Staffa
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
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 Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP1564516A2 publication Critical patent/EP1564516A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
    • 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
    • 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
    • F28F9/0234—Header boxes; End plates having a second heat exchanger disposed there within, e.g. oil cooler
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0089—Oil coolers
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/916—Oil cooler

Definitions

  • the invention relates to a heat exchanger, in particular an oil cooler for motor vehicles according to the preamble of claim 1.
  • Oil coolers for motor vehicles d. H. Engine oil cooler or transmission oil cooler are known in different designs. Air cooled engine oil coolers are in the arranged front engine compartment of the motor vehicle and are of ambient air cooled. Transmission oil coolers are often in the coolant boxes housed by coolant radiators and thus the coolant of the Cooling circuit of the internal combustion engine cooled. Known are so-called Disk oil cooler, as z. B. in EP-A 932,011 are described. The Flow channels for the oil are formed by pairs of discs, the connected from two circumferentially by means of a circumferential fold Discs exist. Between the discs is a so-called turbulence plate inserted, which soldered to the discs.
  • the elongated ones Slices have at their ends breakthroughs, each one connected to a distribution and a collection channel, have the oil inlet and outlet nozzles.
  • the disc oil cooler is in one Coolant box made of plastic and placed over the oil and Spout connected to a transmission oil circuit.
  • the single ones Washers are kept at a distance by intermediate rings and / or knobs and form a stack, which can be flowed through by coolant. All parts of the disc oil cooler, which are made of aluminum or stainless steel exist, are soldered together. This requires a narrow tolerance custom-made production of all parts to be joined, which usually are solder plated. In addition, this construction requires a large number of individual parts.
  • JP-A 11142074 has also disclosed a disk oil cooler, which is arranged in a metallic coolant box of a radiator and cooled by coolant.
  • a disk oil cooler which is arranged in a metallic coolant box of a radiator and cooled by coolant.
  • the disc pairs are end Breakthroughs provided, in which slotted tubes for the supply and Removal of the oil are arranged.
  • the disc oil cooler can be used together with its connection pipes and the coolant box are soldered.
  • FIG. 1 Another construction of oil coolers is characterized by flat tubes, such as As described in EP-A 444 595 of the applicant.
  • the flow channels for the oil are formed by flat tubes, which consist of a Aluminum or steel sheet produced and longitudinally welded.
  • a turbulence insert is inserted and soldered to increase the internal pressure resistance with the flat tube, which Iotplattiert can be.
  • breakthroughs provided, which connected to the openings of adjacent flat tubes be so that in each case a distribution and a collection channel for the Oil is produced.
  • the flat tubes must closed at the end. This is done in the known Flachrohrölkühler through an end-side fold, which helps to increase the stiffness has a wave contour. Between the flat tubes is - in the case of Air cooling - a corresponding ribbing provided.
  • the flat tubes of the oil cooler as extruded Multi-chamber tubes are formed. This gives the advantage that the entire oil cooler from a smaller number of items produced is, which also reduces the manufacturing cost of the oil cooler.
  • extruded Multi-chamber pipes are known per se, z. B. in flat tube capacitors for motor vehicle air conditioners. Multi-chamber tubes can with low Wall thicknesses and high internal pressure resistance than flat tubes with a variety are made of chambers, which are separated by webs from each other are. The webs act as tie rods and improve the heat conduction outward.
  • the production of a welded flat tube or a soldered pair of discs, each associated with the insertion and soldering a turbulence insert according to the prior art is omitted because an extruded Multi-chamber tube in all desired dimensions as semi-finished product can be obtained.
  • the manufacturing quality is improved.
  • the multi-chamber pipes are made of a solderable aluminum wrought alloy produced. This allows the multi-chamber tube with others Parts of the oil cooler according to the cost-effective Nocolok process, d. H. be soldered with a non-corrosive flux.
  • the Multi-chamber tubes are in the end of the Multi-chamber tubes incorporated breakthroughs, d. H. for example punched or produced by laser cutting.
  • the breakthroughs extend into Transverse direction in each case to the outermost webs, d. H. the two extreme ones Chambers of the multi-chamber tube are not broken by the breakthrough cut or opened.
  • the advantage is achieved that a fluid connection between the flow channels of stacked Multi-chamber pipes is possible, d. H. according to a similar construction principle, as known with disc or Flachrohrölkühlern.
  • a multi-chamber tube provided with massive narrow sides, so that in this Area of multi-chamber pipes results in a much thicker wall thickness.
  • the contour of the apertures is limited by two semicircles, which in Make a paragraph on the massive narrow sides, to which a in the breakthrough inserted closure plate abuts. This will be the advantage achieved against rotation; the closure plate may become during Do not twist the mounting of the oil cooler and during soldering as it is is fixed in the circumferential direction by the paragraphs.
  • the breakthroughs have different geometric shapes, z. Circular, semi-circular or D-shape or a rectangular or square shape, where the transverse extent, d. H. transverse to the longitudinal direction of the multi-chamber tube in each case from the outermost bridge of one side to the outermost bridge of the other Page is enough.
  • the geometry of the chambers is essentially rectangular or square, d. H. the webs are perpendicular to the flat sides arranged the flat tube.
  • the breakthroughs Lock plates used, which on the one hand, the flow channels of the Close multi-chamber tube to the outside and on the other hand a connection allow with an adjacent breakthrough.
  • the locking plates are adapted to the shape of the breakthroughs, z. B. is according to the invention for a circular breakthrough a semicircular or half-shell-shaped Cover plate provided, which is the outer half of the Breakthrough closes to the outside.
  • the closure panels are Iotplattiert and are soldered to the multi - chamber pipe, which is self - production - conditioned - not Iotplattiert is.
  • Nipples to increase the heat exchange area be provided, for. B. by Iotplatt jewe corrugated ribs, turbulence inserts or the like, which in particular in the case of secondary-side air cooling of Advantage is.
  • the oil cooler 1 shows a heat exchanger according to the invention, designed as an oil cooler 1, which - in a simplified representation - of three extruded Mehrschflachrohren 2, 3, 4 is constructed, which are parallel to each other and in Distances are arranged one above the other to form a stack. Between Multi-chamber pipes 2, 3, 4 are corrugated fins 5 or the like for enlargement arranged the secondary-side heat exchange surface.
  • the oil cooler 1 has two nozzles, an oil inlet nozzle 6 and an oil outlet nozzle 7, which with an oil circuit, not shown, of a motor vehicle can be connected.
  • Fig. 2 shows a longitudinal section parallel to the flat sides through one of the multi-chamber tubes.
  • the multi-chamber tube 2 has a multiplicity of discrete flow channels 2 a, which are separated from one another by webs 2 b.
  • a circular aperture 8 is arranged, that is, a circular cutout, which z. B. is produced by punching.
  • a cutting out of the circular cutout 8 by laser or water cutting is also possible. The production of the opening 8 thus takes place without cutting, ie no chips can settle in the flow channels 2a of the multi-chamber tube 2, which would lead to contamination of the oil circuit during operation.
  • a slotted tube 9 is inserted, which has on its right in the drawing on the right side extending in the circumferential direction slots 9a and is closed on its left in the drawing page.
  • the multi-chamber tube 2 is closed to the outside.
  • the slotted tube 9 is in fluid communication with the flow channels 2b of the multi-chamber tube 2 via the peripheral slots 9a.
  • the slotted tube 9 has an outer diameter D, which corresponds to the distance a between the two outermost webs 2 a of the multi-chamber tube 2.
  • Fig. 3 shows the slotted tube 9 in longitudinal section, the middle multi-chamber tube 3 is partially shown, the upper and lower multi-chamber tube 2, 4 are omitted for simplicity. It can be seen that the slotted tube 9 in fluid communication with the flow channels 3b of the multi-chamber tube 3 via the circumferential gap 9a, while the multi-chamber tube 3 is closed to the outside.
  • the slotted tube 9 thus acts as a manifold or as a manifold for the incoming or exiting oil.
  • Iotplattator intermediate rings 15 are arranged, which solder with the adjacent, not shown here multichamber tubes and thus cause a seal.
  • Fig. 4 shows a section in the plane IV-IV in Fig. 2, that is, a further longitudinal section through the manifold 9 and a cross section through the multi-chamber tube 2, which is shown in dashed lines.
  • the extruded multi-chamber tube 2 has a flat-oval cross-section, with a flat upper side 2c and a flat lower side 2d and two rounded narrow or end sides 2e, 2f.
  • the webs 2b are arranged perpendicular to the flat sides 2c, 2d, the generatrices (outer periphery) of the manifold 9 are parallel to the outermost webs 2b and touch them, so that there can be a soldering.
  • the multichamber tube 2 has an overall height H in the range of 2.0 ⁇ H ⁇ 4.0 mm and a ridge width b in the range of 0.15 ⁇ b ⁇ 0.6 mm.
  • Fig. 5 shows a photographic representation of another embodiment of the invention with a modified manifold or distributor.
  • Fig. 5 shows a Flachrohrölkühler 10 with a view of the narrow side, ie on the end faces of the extruded multi-chamber tubes 11, which have a plurality of fine flow channels 11 a.
  • an oil nozzle 12 for the inlet and outlet of the oil can be seen in the front region.
  • the nozzle 12 is also shown in the left part of the image as a single part.
  • Fig. 5 also shows a half-shell-shaped tube 13 and an intermediate ring 14, whose inner diameter corresponds to the outer diameter of the half-shell tube 13.
  • Both elements 13, 14 serve as a manifold or manifold, which corresponds in function to the slotted manifold 9 shown in FIG. 2 to 4.
  • the half-shell-shaped tube 13, also referred to as a closure plate is inserted into the openings (as shown in FIG. 2) in such a way that the multi-chamber tubes are closed to the outside but remain open towards the inside.
  • an intermediate ring 14 is pushed, on which rests in the stack next multi-chamber tube.
  • the intermediate rings 14 thus act as spacers to maintain a defined distance between the multi-chamber tubes, and on the other hand, they form in conjunction with the half-shell-shaped closure plate 13 a fluid channel by closing the missing part in the periphery of the closure plate.
  • the finished stack consisting of multi-chamber tubes 11, inserted closure plates 13 and intermediate rings 14 is soldered to a dense radiator block.
  • both the closure plate 13 and the intermediate ring 14 are Iotplattiert.
  • the extruded multi-chamber tubes can not be Iotplattiert due to the extrusion process, but they are made of a solderable aluminum wrought alloy; the other parts therefore also consist of aluminum alloys.
  • Both oil coolers can with their oil nozzles in a metallic coolant box soldered to a whole aluminum cooler.
  • the multi-chamber pipe 16 has a series of approximately rectangular chambers 21, whose width a is in a range of 0.5 ⁇ a ⁇ 0.8 mm, similar to the previous embodiment shown in FIG. 4.
  • the wall thickness s of the top and bottom 17, 18 is in a range of 0.2 ⁇ s ⁇ 0.4 mm.
  • Fig. 7 shows an end portion of the multi-chamber tube 16 (reduced in scale from the scale of Fig. 6) with an opening 22.
  • the aperture 22 has a contour which is composed of two semicircles 22a, 22b of different diameters, namely d and D.
  • the contour of the opening 22 is completed by two shoulders 22c, 22d, which connect the two semicircles 22a, 22b to one another. This contour can be punched out of the multi-chamber tube 16 by a corresponding punch with different diameters d and D.
  • a half-shell-shaped closure plate 23 is inserted, which abuts with its end edges of the paragraphs 22c, 22d and is thus secured against rotation.
  • the difference between the two diameters D and d corresponds to the (double) wall thickness of the half-shell-shaped closure plate 23.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP05001625A 2004-02-13 2005-01-27 Echangeur de chaleur, en particulier refroidisseur d'huile pour véhicule Withdrawn EP1564516A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004007510.7A DE102004007510B4 (de) 2004-02-13 2004-02-13 Wärmeübertrager, insbesondere Ölkühler für Kraftfahrzeuge
DE102004007510 2004-02-13

Publications (1)

Publication Number Publication Date
EP1564516A2 true EP1564516A2 (fr) 2005-08-17

Family

ID=34684077

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05001625A Withdrawn EP1564516A2 (fr) 2004-02-13 2005-01-27 Echangeur de chaleur, en particulier refroidisseur d'huile pour véhicule

Country Status (3)

Country Link
US (1) US7201216B2 (fr)
EP (1) EP1564516A2 (fr)
DE (1) DE102004007510B4 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7755185B2 (en) 2006-09-29 2010-07-13 Infineon Technologies Ag Arrangement for cooling a power semiconductor module
EP2645041A2 (fr) * 2005-09-29 2013-10-02 Denso Corporation Tube pour échangeur de chaleur et échangeur de chaleur

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DE10357175B4 (de) * 2003-12-06 2006-03-16 Mtu Friedrichshafen Gmbh Bodenplatte für ein Kurbelgehäuse
ATE554361T1 (de) * 2009-04-28 2012-05-15 Abb Research Ltd Wärmerohr mit gewundenem rohr
EP2246654B1 (fr) * 2009-04-29 2013-12-11 ABB Research Ltd. Échangeur thermique à thermosiphon à rangs multiples
EP2375208B1 (fr) * 2010-03-31 2012-12-05 VALEO AUTOSYSTEMY Sp. Z. o.o. Échangeur thermique amélioré
CN102570697A (zh) * 2012-03-20 2012-07-11 中科盛创（青岛）电气有限公司 具有涡流生成功能的电机水冷机座水道
WO2013142826A1 (fr) * 2012-03-23 2013-09-26 Sapa Extrusions,Inc. Appareil de refroidissement utilisant des plaques extrudées empilables
DE102015010289A1 (de) * 2015-08-08 2017-02-09 Modine Manufacturing Company Plattenwärmetauscher
CN113074387B (zh) * 2021-04-29 2022-02-25 北京航空航天大学 一种带有桁架结构的再生冷却通道

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2645041A2 (fr) * 2005-09-29 2013-10-02 Denso Corporation Tube pour échangeur de chaleur et échangeur de chaleur
EP2645041A3 (fr) * 2005-09-29 2013-11-13 Denso Corporation Tube pour échangeur de chaleur et échangeur de chaleur
US7755185B2 (en) 2006-09-29 2010-07-13 Infineon Technologies Ag Arrangement for cooling a power semiconductor module

Also Published As

Publication number Publication date
DE102004007510A1 (de) 2005-09-01
DE102004007510B4 (de) 2019-08-14
US7201216B2 (en) 2007-04-10
US20050194124A1 (en) 2005-09-08

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