EP1502060B1 - Echangeur thermique destine a un appareil frigorifique et procede de fabrication d'un echangeur thermique - Google Patents

Echangeur thermique destine a un appareil frigorifique et procede de fabrication d'un echangeur thermique Download PDF

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Publication number
EP1502060B1
EP1502060B1 EP03729940A EP03729940A EP1502060B1 EP 1502060 B1 EP1502060 B1 EP 1502060B1 EP 03729940 A EP03729940 A EP 03729940A EP 03729940 A EP03729940 A EP 03729940A EP 1502060 B1 EP1502060 B1 EP 1502060B1
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EP
European Patent Office
Prior art keywords
heat exchanger
plate
material layer
bitumen composition
sheet
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
EP03729940A
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German (de)
English (en)
Other versions
EP1502060A1 (fr
Inventor
Detlef Cieslik
Thorsten Kusnik
Berthold Pflomm
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1502060A1 publication Critical patent/EP1502060A1/fr
Application granted granted Critical
Publication of EP1502060B1 publication Critical patent/EP1502060B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • 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
    • F28D1/047—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 bent, e.g. in a serpentine or zig-zag
    • F28D1/0477—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 bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
    • F28D1/0478—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 bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag the conduits having a non-circular cross-section
    • 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
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
    • F28F1/22—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means having portions engaging further tubular 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
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/02—Details of evaporators
    • F25B2339/023—Evaporators consisting of one or several sheets on one face of which is fixed a refrigerant carrying coil
    • 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
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • F28D2021/0071—Evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/02—Fastening; Joining by using bonding materials; by embedding elements in particular materials
    • F28F2275/025—Fastening; Joining by using bonding materials; by embedding elements in particular materials by using adhesives
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49364—Tube joined to flat sheet longitudinally, i.e., tube sheet

Definitions

  • the present invention relates to a heat exchanger, such as an evaporator, a condenser or the like, for a refrigerator with a circuit board, arranged in thermally conductive contact with the board pipeline for a refrigerant and adhering to the board and to the pipe holding material layer and a method for Production of such a heat exchanger.
  • a heat exchanger such as an evaporator, a condenser or the like
  • a heat exchanger of this type and a method for its preparation are made of DE 199 38 773 A1 known.
  • a meandering bent pipe is kept pressed against a board, and the spaces between the meanders of the pipeline are filled with a holding means.
  • This holding means may be an expanded polyurethane foam or castable thermosetting plastics.
  • Such holding means are costly and the crosslinking that takes place during their curing or foaming makes their recovery and re-use difficult if such an evaporator is to be recycled.
  • JP 57-210295 A For example, a method of manufacturing a heat exchanger is known in which an aluminum foil, pipes and a plastic film are stacked on each other, in which the plastic film is softened by heating and bonded under pressure to the aluminum foil so that the pipes are fixed to the aluminum foil by the plastic are.
  • the object of the present invention is to provide a low-cost, recycling-friendly heat exchanger for a refrigerator and a method for its production.
  • bitumen composition as a holding material layer has the advantage that such materials are available inexpensively; on the other hand, they are recycling-friendly, because after disassembling such a heat exchanger into its constituents, the bitumen material obtained without significant processing and without loss of quality for the production of a new heat exchanger or other purposes.
  • the use of the bitumen composition after cooling ensures very intimate contact of the tubing with the support plate, thereby improving the thermal efficiency of the heat exchanger.
  • the mass of the bitumen composition also has a heat or cold storage effect, which serves in the case of an evaporator to reduce the energy consumption of a refrigerator.
  • bitumen composition between the carrier board and the pipe is mechanically very durable and thus the heat exchanger in handling the production process of a large-scale production very stable.
  • the pipe may have a flattened cross section with the board facing disseminated side to ensure a flat contact between the board and pipe. Due to the surface contact a thermally conductive contact between the pipe and circuit board is always ensured even in unfavorable production conditions.
  • an adhesive layer is provided which at least locally connects the holding material layer to the board.
  • This adhesive layer is preferably made of a heat activatable adhesive. This simplifies the manufacture of the heat exchanger since the adhesive layer can be previously exposed to a bitumen composition sheet used to form the holding material layer, and obtains its effectiveness by melting when the holding material layer is heated.
  • the bitumen composition may contain, in addition to bitumen, between about 50 and 80% filler.
  • the filler which may be a single material or a mixture of materials, may be selected, for example, from the viewpoint of cost minimization or improvement of thermal conductivity.
  • a preferred filler is rock flour.
  • the protective material layer may be provided for protection on its side facing away from the board with a paint layer.
  • the holding material layer suitably has an average thickness in the range between 0.5 to 2 mm, preferably between 1.0 and 1.5 mm.
  • a heat exchanger of the type described above is easily possible by forming a stack comprising a board, a piping for a refrigerant and a bitumen composition plate, and then heating the film and pressing the stack.
  • the in Fig. 1 Evaporator shown in perspective view is constructed from a flat plate 1 made of aluminum sheet, on which a refrigerant pipe 2 is arranged meandering from a likewise made of aluminum tube.
  • the circuit board 1 and the refrigerant line 2 are covered by a holding material layer 3 of a bitumen composition. This consists of about 25% polymer-modified bitumen, 3% of a plastic and about 72% rock flour.
  • the refrigerant pipe 2 has no exactly round, but a flattened cross-section, causing the refrigerant pipe 2 and the board 1 at least approximately flat contact.
  • a thermally conductive contact between the refrigerant line 2 and the circuit board 1 is achieved in a simple manufacturing technology.
  • the holding material layer 3 extends into gusset 4 which lie on both sides of the line of contact between the refrigerant line 2 and the circuit board 1.
  • the massive holding material layer 3 provides a better heat transfer between the board 1 and the refrigerant line 2, as would be possible with conventional use of a polyurethane foam as a holding material.
  • the flattened shape of the refrigerant line 2 results in a smaller thickness of the holding material layer 3 in the gussets 4, as would be the case with a round line 2. This is also favorable for an efficient heat exchange between circuit board 1 and refrigerant line 2.
  • a layer 5 of a hot melt adhesive Between the holding material layer 3 and the circuit board 1 is a layer 5 of a hot melt adhesive, which is only recognizable as a line because of their compared to the board 1 and the holding material layer 3 substantially smaller thickness in the figure.
  • a stack is formed whose layers each consist of the board 1, the refrigerant line 2 and a 1.2 mm thick plate 6 of the bitumen composition. Since the adhesive of the layer 5 is not liable in the cold state of the plate, the plate 6 can be conveniently prefabricated and handled together with the layer 5 on the underside of the plate 6 facing the circuit board 1 and the refrigerant line 2. Measures to protect the adhesiveness for the time between manufacture and use of the plate 6 are not necessary.
  • a punch 7 is pressed against the top of the plate 6.
  • the plate 6 is cold and thus stiff; the pressing force of the punch 7 causes the refrigerant line 2 is pressed against the board 1 over its entire length.
  • the punch 7 is provided on its plate 6 facing bottom with channels 9, the course of which corresponds to the refrigerant line 2.
  • the stamp 7 also be made of elastomeric plastic, such as silicone with a hardness of eg 20 Shore A and a material thickness of 20 mm.
  • elastomeric plastic such as silicone with a hardness of eg 20 Shore A and a material thickness of 20 mm.
  • the bitumen of the plate 6 is made flowable, and the plate 6 is pressed against the board 1 in the spaces 8 between adjacent portions of the refrigerant line 2.
  • the toughness of the bitumen composition is adjusted so that on the one hand it becomes fluid enough to penetrate into the gussets 4 between the board 1 and the refrigerant line 2, but on the other hand is still tough enough to possibly localize parts of the refrigerant pipe 2 from the board to prevent.
  • the channels 9 of the punch 7 may also be provided locally with projections (not shown) which are pressed therethrough when the plate 6 is heated and with the refrigerant line 2 in FIG come into direct contact to keep them pressed against the board 1.
  • the melting point of the hot melt of the adhesive layer 5 is selected so that it melts during the heating and shaping of the plate 6 and then, after cooling, the re-solidified holding material layer 3 firmly connects to the circuit board 1 and the refrigerant line 2.
  • the adhesive layer 5 may extend over the entire underside of the plate 6 or only over parts thereof.
  • a lacquer layer in particular shellac, can be applied.
  • the recovery of the bitumen composition in the recycling of the evaporator is possible in a simple manner by blasting the brittle in the state of cold holding material layer 3 is broken into pieces by deformation of the evaporator or by strong cooling of the evaporator, for example with the aid of dry ice, the connection between Holding material layer 3 and refrigerant line 2 and board 1 is brought to break.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
  • Laminated Bodies (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)

Claims (9)

  1. Echangeur thermique destiné à un appareil frigorifique comprenant une platine (1), une conduite (2), disposée en contact thermoconducteur avec la platine (1), pour un réfrigérant et une couche de matière de maintien (3) adhérant à la platine (1) et à la conduite (2), qui est constituée d'une composition de bitume, caractérisé en ce que la couche de matière de maintien (3) est reliée au moins localement à la platine (1) par l'intermédiaire d'une couche de colle (5).
  2. Echangeur thermique selon la revendication 1, caractérisé en ce que la couche de colle (5) est constituée d'une colle activable par chaleur.
  3. Echangeur thermique selon la revendication 1 ou 2, caractérisé en ce que la conduite (2) présente une section aplatie.
  4. Echangeur thermique selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la composition de bitume comprend entre 50% et 80% de matière de remplissage.
  5. Echangeur thermique selon la revendication 4, caractérisé en ce que de la roche pulvérisée est contenue en tant que matière de remplissage.
  6. Echangeur thermique selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la couche de matière de maintien (3) porte une couche de laque sur son côté détourné de la platine (1).
  7. Echangeur thermique selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la couche de matière de maintien (3) présente une épaisseur moyenne comprise entre 0,5 mm et 2,0 mm, de préférence entre 1,0 mm et 1,5 mm.
  8. Procédé de fabrication d'un échangeur thermique, notamment d'un évaporateur ou d'un condenseur selon l'une quelconque des revendications précédentes, comprenant les étapes :
    - formation d'une pile qui comprend une platine (1), une conduite (2) pour un réfrigérant et une plaque (6) constituée d'une composition de bitume, la plaque (6) présentant une couche de colle (5) sur son côté tourné vers la platine (1), qui n'adhère pas à l'état froid de la plaque (6),
    - échauffement de la plaque (6) et pressage de la pile.
  9. Procédé selon la revendication 8, caractérisé en ce que la platine (1), la conduite (2) et la plaque (6) constituée de la composition de bitume sont empilées dans l'ordre mentionné.
EP03729940A 2002-04-26 2003-04-25 Echangeur thermique destine a un appareil frigorifique et procede de fabrication d'un echangeur thermique Expired - Lifetime EP1502060B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10218826 2002-04-26
DE10218826A DE10218826B4 (de) 2002-04-26 2002-04-26 Wärmetauscher für ein Kältegerät und Verfahren zur Herstellung eines Wärmetauschers
PCT/EP2003/004338 WO2003091637A1 (fr) 2002-04-26 2003-04-25 Echangeur thermique destine a un appareil frigorifique et procede de fabrication d'un echangeur thermique

Publications (2)

Publication Number Publication Date
EP1502060A1 EP1502060A1 (fr) 2005-02-02
EP1502060B1 true EP1502060B1 (fr) 2009-09-16

Family

ID=29224811

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03729940A Expired - Lifetime EP1502060B1 (fr) 2002-04-26 2003-04-25 Echangeur thermique destine a un appareil frigorifique et procede de fabrication d'un echangeur thermique

Country Status (11)

Country Link
US (2) US7266890B2 (fr)
EP (1) EP1502060B1 (fr)
CN (1) CN1311211C (fr)
AT (1) ATE443238T1 (fr)
AU (1) AU2003240464A1 (fr)
BR (1) BR0309777A (fr)
DE (2) DE10218826B4 (fr)
ES (1) ES2331877T3 (fr)
PL (1) PL202377B1 (fr)
RU (1) RU2324869C2 (fr)
WO (1) WO2003091637A1 (fr)

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DE10360900A1 (de) * 2003-12-23 2005-07-21 BSH Bosch und Siemens Hausgeräte GmbH Wärmetauscher und Herstellungsverfahren dafür
DE102004027706A1 (de) 2004-06-07 2005-12-22 BSH Bosch und Siemens Hausgeräte GmbH Verdampfer für ein Kältegerät und Verfahren zu dessen Herstellung
DE202005014373U1 (de) * 2005-09-12 2006-01-05 BSH Bosch und Siemens Hausgeräte GmbH No-Frost-Kältegerät
US8113492B2 (en) * 2008-01-04 2012-02-14 Parata Systems, Llc Device and method for evaporating water from a compressor
US20100326096A1 (en) * 2008-11-10 2010-12-30 Brent Alden Junge Control sytem for bottom freezer refrigerator with ice maker in upper door
US9200828B2 (en) * 2008-11-10 2015-12-01 General Electric Company Refrigerator
US9175893B2 (en) * 2008-11-10 2015-11-03 General Electric Company Refrigerator
DE102009027883A1 (de) 2009-07-21 2011-01-27 BSH Bosch und Siemens Hausgeräte GmbH Wärmetauscher und Verfahren zu dessen Herstellung
DE102010003825A1 (de) * 2010-04-09 2011-10-13 BSH Bosch und Siemens Hausgeräte GmbH Drahtrohrwärmetauscher, Verfahren zu dessen Herstellung und diesen verwendendes Kältegerät
DE102010028526A1 (de) * 2010-05-04 2011-11-10 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät und Verdampfer dafür
DE102011079201A1 (de) * 2011-07-14 2013-01-17 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät
DE102011079762A1 (de) * 2011-07-25 2013-01-31 BSH Bosch und Siemens Hausgeräte GmbH Wärmetauscher für ein kältegerät, verfahren zur herstellung eines wärmetauschers sowie kältegerät
CN104001803B (zh) * 2014-05-23 2016-03-02 鄞楠 蒸发器成型设备及其成型方法
US10288361B2 (en) * 2015-03-17 2019-05-14 Hatco Corporation Hot and cold shelf assembly with replaceable heating elements
DE102016224434A1 (de) 2016-12-08 2018-06-14 BSH Hausgeräte GmbH Kältegerät mit mehreren Temperaturzonen
DE102017204738A1 (de) 2017-03-21 2018-09-27 BSH Hausgeräte GmbH Wärmetauscher und damit ausgestattetes Kältegerät
CN109489311A (zh) * 2018-11-29 2019-03-19 上海萨新东台热传输材料有限公司 一种适用于冷凝器的冲压集流管及其制备方法
USD977619S1 (en) * 2019-04-05 2023-02-07 Phase Change Energy Solutions, Inc. Thermal management panel

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Also Published As

Publication number Publication date
US7266890B2 (en) 2007-09-11
EP1502060A1 (fr) 2005-02-02
AU2003240464A1 (en) 2003-11-10
RU2004130491A (ru) 2006-02-20
DE10218826B4 (de) 2007-03-22
CN1650136A (zh) 2005-08-03
CN1311211C (zh) 2007-04-18
RU2324869C2 (ru) 2008-05-20
DE50311919D1 (de) 2009-10-29
US20070295495A1 (en) 2007-12-27
PL371209A1 (en) 2005-06-13
WO2003091637A1 (fr) 2003-11-06
BR0309777A (pt) 2005-03-08
DE10218826A1 (de) 2003-11-13
PL202377B1 (pl) 2009-06-30
ES2331877T3 (es) 2010-01-19
ATE443238T1 (de) 2009-10-15
US20050109497A1 (en) 2005-05-26

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