EP1842020B1 - Stapelscheiben-wärmetauscher - Google Patents

Stapelscheiben-wärmetauscher Download PDF

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Publication number
EP1842020B1
EP1842020B1 EP06706195.2A EP06706195A EP1842020B1 EP 1842020 B1 EP1842020 B1 EP 1842020B1 EP 06706195 A EP06706195 A EP 06706195A EP 1842020 B1 EP1842020 B1 EP 1842020B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
holes
stacked
plate heat
hole
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
EP06706195.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1842020A1 (de
Inventor
Jens Richter
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 EP1842020A1 publication Critical patent/EP1842020A1/de
Application granted granted Critical
Publication of EP1842020B1 publication Critical patent/EP1842020B1/de
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
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • 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
    • F28F3/046—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 linear, e.g. corrugations
    • 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
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • 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
    • 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
    • F28F9/002—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core with fastening means for other structures
    • 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

Definitions

  • the invention relates to a stacked-plate heat exchanger, in particular for a motor vehicle, with a plurality of stacked and interconnected, in particular soldered, conduit means, in particular flat tubes, in the form of elongated discs, each composed of two elongated, a cavity for performing the medium-forming disc halves are each having at their ends a first through hole for supplying or discharging the medium that, viewed in the transverse direction of the disc halves, is arranged between two further through holes.
  • a plate heat exchanger which has a number of channels in the finished state, which are connected in series via collectors and serve for a fluid to be cooled.
  • Each individual channel consists of a pair of rounded rectangular plates, which are provided with protruding and outwardly flanged edges and face each other.
  • the rectangular plates are equipped with holes, which are arranged on the short sides and form the collectors.
  • Spacers are arranged between pairs of plates, which form slotted openings for a cooling medium.
  • a spacer is provided between each pair of plates in the region of a corresponding short side.
  • the spacers and spacers are located in the same area so that the said plates and spacers are oven-brazed be connected to a solid body on each short side of the heat exchanger. After the furnace brazing process, at least one channel is made in said area which passes through the plates and through the spacer / spacers and is intended to be used in connection with the installation of the heat exchanger / cooler.
  • the plates and spacers / spacers are provided with two through-holes which are symmetrically arranged relative to the openings and the recesses, so that four tubes are arranged vertically during the manufacturing process, with an outside diameter which provides a sliding fit in the so-called bores allowed, so that the plates and the spacers / spacers can be pushed onto the tubes in a desired order.
  • the ends of the tubes stand upright to ensure that the stacked plates and spacers / spacers are securely held together, whereupon the oven brazing process takes place.
  • the known plate heat exchanger includes many items and is complicated. In addition, the production of the known plate heat exchanger is relatively expensive.
  • the object of the invention is a stacked plate heat exchanger, which is also referred to as a plate heat exchanger, in particular for a motor vehicle, with a plurality of stacked and interconnected, in particular soldered, conduit devices, in particular flat tubes, in the form of elongated discs, each consisting of two elongated , a cavity for carrying the medium-forming disc halves are assembled, which have at their ends in each case a first through hole for feeding or discharging the medium that, viewed in the transverse direction of the disc halves, between two further through holes is arranged to provide the simple and is inexpensive to produce.
  • the object is in a stacked plate heat exchanger, in particular for a motor vehicle, with a plurality of stacked and interconnected, in particular soldered, line devices, in particular Flat tubes, in the form of elongated discs, which are each composed of two elongated, a cavity for carrying the medium-forming disc halves having at their ends a first through hole for feeding or discharging the medium, that, viewed in the transverse direction of the disc halves, between two further through holes, is achieved in that the edge region of the further through holes is raised and has substantially the shape of a cup having a bottom in which the associated through hole is recessed, wherein the edge region of the first through hole is raised and formed in the Substantially has the shape of a cup having a bottom in which the associated through hole is recessed and the raised edge portions of the further through holes and the raised edge portion of the first through hole are substantially at the same level, wherein zwisc hen a through hole and another through hole each have a circular arc-shaped bead is
  • the bead improves the solderability of a pair of discs.
  • the strength of a disc half is increased by the bead.
  • the bead is designed with a small distance so that are connected by the bead both sides of a disc half with the respective adjacent disc half. This will be in the soldered stacked plate heat exchanger strong tie rods formed.
  • the beads are connected by a meander-shaped embossment or infiltration, which is formed at the end of the respective disc half between the two further through-holes outside the first through-hole.
  • the meander-shaped embossment or infiltration can also be referred to as a bead and reinforces the previously described effect of the bead.
  • the conduit means are stacked between a base plate and a cover plate.
  • the cover plate and the base plate define the stacked plate heat exchanger.
  • One or both plates may be used to mount the stacked plate heat exchanger to, for example, an engine block or filter housing.
  • a further preferred embodiment of the stacked-plate heat exchanger is characterized in that the base plate has four through-holes which are each arranged concentrically with the further through-holes in the conduit means and for carrying out fastening means whose dimensions are slightly smaller than the diameter of the further through-holes.
  • the fastening means are preferably screws with which the base plate is screwed, for example, to an engine block.
  • the screws preferably have screw heads whose outer diameter is greater than the diameter of the through holes in the base plate but smaller than the diameter of the further through holes in the conduit means.
  • a further preferred embodiment of the stacked plate heat exchanger is characterized in that the base plate and the cover plate each have four through holes, which are aligned with the further through holes in the conduit means and for performing fastening means whose dimensions are slightly smaller than the diameter of the further through holes ,
  • the fastening means are preferably screws with which both the base plate and the cover plate with the clamped therebetween conduit means, for example, bolted to an engine block become.
  • the screws preferably have screw heads whose outer diameter is greater than the diameter of the through holes in the base plate and the cover plate.
  • the conduit means are each composed of two identical disc halves rotated 180 ° from each other, each of which has a plurality of grooves, preferably straight from one longitudinal side to the opposite longitudinal side of the disc half run.
  • the discs, each composed of two disc halves, are also referred to as flat tubes or plates. Therefore, the stacked plate heat exchanger according to the invention is also referred to as a plate heat exchanger.
  • the straight course of the grooves ensures unimpeded passage of a medium from one longitudinal side of the disc half to the opposite longitudinal side. In the cavity, the grooves ensure good turbulence of the medium to be cooled. This provides the advantage that can be dispensed with separate turbulence inserts.
  • the grooves are formed on one side in each disc half.
  • the grooves are formed by straight, elongated, narrow depressions, which are also referred to as beads, which are formed on one side, for example, in a sheet material. Since the grooves are pronounced only on one side, simplifies the manufacture of the disc halves.
  • Another preferred embodiment of the stacked plate heat exchanger is characterized in that the grooves are bounded on the longitudinal sides by a peripheral edge.
  • the peripheral edge serves to connect two disc halves together, in particular to be soldered. As a result, the cavity between the two disc halves is sealed to the environment.
  • a disc is formed by two abutting disc halves whose grooves are pronounced outwards.
  • the grooves define the flow path of the medium inside the disk.
  • an inlet is provided at one end of the disc and an outlet for the medium at the other end of the disc.
  • Another preferred embodiment of the stacked-plate heat exchanger is characterized in that two discs with their raised portions formed by the grooves abut each other and are soldered together. Between the raised areas, coolant can pass from one longitudinal side to the opposite longitudinal side of the respective half of the pane.
  • the grooves extend at an angle of 35 ° to 55 °, in particular 45 °, to the longitudinal axis of the associated disc half. This ensures on the one hand that the medium can flow from one end to the other end of the disc through the cavity formed in the interior of the disc. On the other hand, it is also ensured by the course of the grooves according to the invention that the medium can flow in two slices from one longitudinal side to the opposite longitudinal side.
  • the grooves of two abutting disc halves are arranged at an angle of 80 ° to 100 °, in particular of 90 ° to each other.
  • a flow path is created for the medium to be cooled in the interior of the discs, which has many changes of direction and vortex.
  • This has the advantage that during operation in the cavity forming boundary layers are repeatedly torn. This leads to a greatly improved heat transfer compared to a smooth channel without grooves.
  • the medium to be cooled is thus subjected to many changes of direction as it flows through the cavity.
  • the coolant can flow almost unhindered and straight through the grooves between two adjacent discs.
  • the angle of 90 ° gives a nearly circular Lötminiskus at the junction of two grooves.
  • the flow is influenced in the same way longitudinally and transversely to the main flow direction of the medium to be cooled.
  • Each of the through holes is, for example, round, elliptical, oval, angular, in particular triangular, quadrangular or polygonal, rectangular or square.
  • the through holes may have different shape and / or size each other.
  • FIG. 1 an inventive stacked plate heat exchanger 1 is shown in front view.
  • the stacked plate heat exchanger 1 comprises a plurality of substantially disc-shaped flat tubes 3, 4, the between a base plate 8 and a cover plate 9 are stacked one above the other.
  • the flat tubes 3, 4 each have at their ends an opening through which a medium to be cooled, in particular engine oil, can enter or exit.
  • the flat tubes 3, 4 are flowed through in the longitudinal direction of the medium to be cooled.
  • the flat tubes 3, 4 are acted upon by coolant, the flat tubes 3, 4 perpendicular to the plane in FIG. 1 flows around.
  • FIG. 2 is the top view of the in FIG. 1 illustrated stacked plate heat exchanger 1 shown.
  • the stacked-plate heat exchanger 1 can be fastened by four screws 11 to 14 to an engine block or filter housing or filter housing cover of a motor vehicle (not shown).
  • FIG. 2 is indicated that in the transverse direction in each case between two screws 11, 14; 12, 13 a through hole 15; 16 is provided for the medium to be cooled in the flat tubes 3, 4.
  • FIG. 3 is the stacked-plate heat exchanger 1 from the Figures 1 and 2 shown in the side view.
  • FIG. 4 is the view of a section along the line IV-IV in FIG FIG. 2 shown.
  • the screws 11, 14 each comprise a screw head 17, 18, from each of which a bolt 19, 20 extends.
  • the bolts 19, 20 extend through through holes 21, 22 which are provided in the base plate 8.
  • the diameter of the through holes 21, 22 is slightly larger than the outer diameter of the bolts 19, 20.
  • the outer diameter of the outer heads 17, 18, however, is slightly larger than the diameter of the through holes 21, 22nd
  • FIG. 4 is indicated by arrows 25, 26 that the flat tubes 3, 4 through holes, in particular passages, whose diameter is slightly larger than the outer diameter of the screw heads 18, 19.
  • the through holes 25, 26 are used to pass the screws 11, 14 during assembly and for receiving the screw heads 17, 18 in the assembled state of the stacked plate heat exchanger first
  • FIG. 5 is a similar sectional view as in FIG. 4 illustrated according to another embodiment.
  • a stacked plate heat exchanger 30 is made by means of four screws, of which in FIG. 5 only the screws 31 and 34 are visible, on a (not shown) engine block of a motor vehicle fastened.
  • the screw 31 has a screw head 32, from which a bolt 33 extends.
  • the screw 34 has a screw head 35, from which a bolt 36 extends.
  • the flat tubes are also referred to as discs, in particular as stacking discs, or as plates.
  • the base plate 8 is the same base plate as in FIG FIG. 4 illustrated embodiment.
  • the cover plate 9 are different from those in FIG. 4 illustrated embodiment, two through holes 38, 39 for the bolts 36, 33 are provided.
  • the diameters of the through holes 21, 22; 38, 39 in the base plate 8 and the cover plate 9 are slightly larger than the outer diameter of the bolts 33, 36.
  • the outer diameter of the screw heads 32, 35 is slightly larger than the diameter of the through holes 21, 22; 38, 39.
  • a disc half 41 is shown in plan view.
  • the disk half 41 has the shape of an elongated plate made of aluminum sheet with two straight longitudinal sides 42 and 43, which are arranged parallel to each other. At its ends 44 and 45, the disc half 41 is rounded. In the ends 44 and 45 of the disc half 41 through-holes 48 and 49 are provided.
  • the through holes 48, 49 each have a raised edge region 50, 51.
  • the raised edge regions 50, 51 of the through holes 48, 49 have, as in particular in FIG. 7 can be seen, in each case the shape of a cup with a bottom in which the through hole 48, 49 is recessed.
  • the grooves 52 preferably extend straight from one longitudinal side 42 to the opposite longitudinal side 43 of the disc half 41.
  • the grooves 52 have the shape of similar recesses, which are raised to the same side of the disc half 41 as the edge regions 50, 51 of the through holes 48, 50th Die Ends of the grooves 52 are rounded to the longitudinal sides 42, 43 out.
  • the grooves 52 are arranged at an angle of 45 ° to the longitudinal axis of the disc half 41.
  • the disk half 41 When viewed in cross section, the disk half 41 has a wave-shaped profile.
  • the wave-shaped cross-sectional profile is formed by the grooves which are formed on one side in the disc half 41.
  • two substantially identical disc halves 41 are rotated by 180 ° to each other and soldered together at their peripheral edges 53.
  • the edge regions 50, 51 and the grooves 52 are directed outward to form a cavity for the medium to be cooled inside.
  • the two disc halves 41 are soldered together not only at their peripheral edges 53, but also at the contact points of the grooves 52 and the raised edge regions 57, 58, 62, 63.
  • the wave profiles touch punctually. This results in the interior of a disc formed from two halves 41 disc again and again changes in direction for the flowing medium to be cooled.
  • the variety of contact points at which the two disc halves 41 are soldered together ensures good pressure stability.
  • the through holes 48, 49 viewed in the transverse direction of the longitudinal disk 41, each between two through holes 55, 56; 60, 61 arranged.
  • the raised edge regions 57, 58; 62, 63 of the through holes 55, 56; 60, 61 are, as in particular in FIG. 7 can be seen, cup-shaped.
  • the raised edge regions 57, 58; 62, 63 of the through holes 55, 56; 60, 61 are pronounced in the same direction.
  • a through hole 55; 56 and the further through hole 48 is in each case a circular arc-shaped bead 65; 66 trained.
  • the beads 65, 66 are interconnected by a substantially meander-shaped indentation 68, which is also referred to as a bead.
  • the meandering bead 68 extends between the ends of the arcuate beads 65 and 66 around the through hole 48.

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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)
EP06706195.2A 2005-01-14 2006-01-11 Stapelscheiben-wärmetauscher Not-in-force EP1842020B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005002063A DE102005002063A1 (de) 2005-01-14 2005-01-14 Stapelscheiben -Wärmetauscher
PCT/EP2006/000166 WO2006074903A1 (de) 2005-01-14 2006-01-11 Stapelscheiben-wärmetauscher

Publications (2)

Publication Number Publication Date
EP1842020A1 EP1842020A1 (de) 2007-10-10
EP1842020B1 true EP1842020B1 (de) 2017-12-13

Family

ID=36102558

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06706195.2A Not-in-force EP1842020B1 (de) 2005-01-14 2006-01-11 Stapelscheiben-wärmetauscher

Country Status (9)

Country Link
US (1) US20080087411A1 (zh)
EP (1) EP1842020B1 (zh)
JP (1) JP2008527304A (zh)
KR (1) KR20070097056A (zh)
CN (1) CN100561102C (zh)
BR (1) BRPI0606533A2 (zh)
DE (1) DE102005002063A1 (zh)
WO (1) WO2006074903A1 (zh)
ZA (1) ZA200705420B (zh)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE534775C2 (sv) 2010-04-08 2011-12-13 Titanx Engine Cooling Holding Ab Värmeväxlare med läckageflödesspärr, oljekylningssystem och metod för kylning av olja
SE536042C2 (sv) * 2010-06-16 2013-04-09 Titanx Engine Cooling Holding Ab Värmeväxlare med utökad värmeöverföringsyta runt fästpunkter
DE102010042068A1 (de) 2010-10-06 2012-04-12 Behr Gmbh & Co. Kg Wärmeübertrager
JP2012107804A (ja) * 2010-11-17 2012-06-07 Mitsubishi Heavy Ind Ltd 積層型熱交換器、それを用いた熱媒体加熱装置および車両用空調装置
JP5859022B2 (ja) 2011-11-30 2016-02-10 三菱電機株式会社 プレート式熱交換器およびこの熱交換器を備えた冷凍サイクル装置
JP5979892B2 (ja) * 2012-02-01 2016-08-31 三菱重工業株式会社 熱媒体加熱装置およびそれを備えた車両用空調装置
CN103471450A (zh) * 2013-09-25 2013-12-25 缪志先 带有安装孔的盒形层叠换热器
DE102013225181A1 (de) * 2013-12-06 2015-06-11 Daimler Ag Ölkühler für ein Kraftfahrzeug
DE102014226671A1 (de) * 2014-12-19 2016-06-23 Mahle International Gmbh Ölkühler für ein Ölfiltermodul eines Kraftfahrzeugs

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US2511084A (en) * 1947-11-07 1950-06-13 Young Radiator Co Heat-exchanger core
US20030131979A1 (en) * 2001-12-19 2003-07-17 Kim Hyeong-Ki Oil cooler

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SE462763B (sv) * 1989-04-28 1990-08-27 Torell Ab Plattvaermevaexlare/kylare samt saett att tillverka denna
SE9000712L (sv) * 1990-02-28 1991-08-29 Alfa Laval Thermal Permanent sammanfogad plattvaermevaexlare
JP2521328Y2 (ja) * 1990-08-06 1996-12-25 カルソニック株式会社 自動変速機用オイルクーラ
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US20030131979A1 (en) * 2001-12-19 2003-07-17 Kim Hyeong-Ki Oil cooler

Also Published As

Publication number Publication date
US20080087411A1 (en) 2008-04-17
DE102005002063A1 (de) 2006-07-20
CN100561102C (zh) 2009-11-18
ZA200705420B (en) 2008-06-25
BRPI0606533A2 (pt) 2009-06-30
KR20070097056A (ko) 2007-10-02
JP2008527304A (ja) 2008-07-24
CN101103242A (zh) 2008-01-09
WO2006074903A1 (de) 2006-07-20
EP1842020A1 (de) 2007-10-10

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