EP2553376B1 - Wärmetauscher mit erhöhter leistung - Google Patents

Wärmetauscher mit erhöhter leistung Download PDF

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Publication number
EP2553376B1
EP2553376B1 EP11711331.6A EP11711331A EP2553376B1 EP 2553376 B1 EP2553376 B1 EP 2553376B1 EP 11711331 A EP11711331 A EP 11711331A EP 2553376 B1 EP2553376 B1 EP 2553376B1
Authority
EP
European Patent Office
Prior art keywords
tube
manifold
exchanger according
tubes
plane
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.)
Active
Application number
EP11711331.6A
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English (en)
French (fr)
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EP2553376A2 (de
Inventor
Christian Riondet
Jean-Marc Lesueur
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.)
Valeo Systemes Thermiques SAS
Original Assignee
Valeo Systemes Thermiques SAS
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 Valeo Systemes Thermiques SAS filed Critical Valeo Systemes Thermiques SAS
Priority to PL11711331T priority Critical patent/PL2553376T3/pl
Publication of EP2553376A2 publication Critical patent/EP2553376A2/de
Application granted granted Critical
Publication of EP2553376B1 publication Critical patent/EP2553376B1/de
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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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • F28F9/182—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding the heat-exchange conduits having ends with a particular shape, e.g. deformed; the heat-exchange conduits or end plates having supplementary joining means, e.g. abutments
    • 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
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/006—Tubular elements; Assemblies of tubular elements with variable shape, e.g. with modified tube ends, with different geometrical features
    • 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
    • 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
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0224—Header boxes formed by sealing end plates into covers
    • 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
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0224—Header boxes formed by sealing end plates into covers
    • F28F9/0226—Header boxes formed by sealing end plates into covers with resilient gaskets
    • 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
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/0265—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using guiding means or impingement means inside the header box
    • 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
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • 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
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • F28F9/185—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding with additional preformed parts

Definitions

  • the invention relates to a heat exchanger and a header plate corresponding to the preamble of claims 1 and 13 respectively, in particular for use in a motor vehicle and a collector plate of such an exchanger.
  • Such a collector plate and such an exchanger are known from DE10360472 .
  • Such exchangers for example the radiators for cooling the motor, have a succession of elongated tubes in which circulates a coolant. Heat exchanges occur between the coolant and the fluid externally in contact with the tubes, generally air.
  • Two manifolds receive the respective ends of these tubes, thus ensuring the fluid communication of the tubes together.
  • These boxes each include a lid and a plate-shaped manifold.
  • the sealing of the junction between the lid and the manifold is generally achieved by means of a seal extending along the edge of the box.
  • the edge of the manifold can be shaped into a groove or groove forming a housing for this joint. This groove also ensures the relative positioning of the cover and the collector.
  • the manifold is perforated with holes adapted to the passage of the tubes, so that the latter open into a respective header box at each of their ends. Once in place, the tubes are secured to the collector, generally by soldering.
  • each tube and the collector To improve the rigidity of the connection between each tube and the collector, it is common to conform an area of the box surrounding each of the holes in a neck of material. Each collar increases the guide length of the tube in the hole and increases the area available for brazing the tube with the lid.
  • the collars are obtained by pushing the material of the collector during the realization of the holes.
  • the height of the collars that is to say the distance from which they protrude from the plate, usually inside the collector box, is related to the thickness of the material used: the thicker the material, the more the collars are high.
  • the ends of the tubes protrude from the collar inside the manifold.
  • the coolant flowing in the box forms vortices. These generate internal pressure losses and adversely affect the performance of the exchanger.
  • the regions in question constitute "dead" zones, that is to say practically useless to the operation of the exchanger.
  • EP 0990868 B1 proposes to reduce these pressure drops by making the collars go beyond the collector outside the collector box.
  • the collars are formed by burrowing the holes in the opposite direction to the direction of insertion of the tubes, i.e. from the inner side of the manifold to the outer side thereof. This makes assembly of the exchanger difficult or impossible, because the holes are then devoid of introduction cone: the cone formed during the repulsion of the material of the collector has a narrowing direction opposite to the direction of introduction of the tubes.
  • step exchangers distance separating the axes of two adjacent tubes
  • FR 2 783 903 proposes to attach an additional plate to the collector, against the inner face of the latter.
  • the space between the portions of the tubes protruding from collars, here internal, is filled by the additional plate.
  • the latter further increases the resistance of the assembly to the crimping forces and protects the ends of the tubes.
  • This plate however constitutes an additional piece to manufacture and to assemble to the rest of the exchanger. This results in increased manufacturing costs.
  • EP 1 384 968 proposes to realize the box in several parts: a first part, intermediate, is crimped on the collector, while a second part, external, is made integral with the first, by gluing, crimping or welding.
  • the intermediate portion is shaped to facilitate insertion of the tubes. In this case, we find the disadvantages of adding an additional piece to the exchanger.
  • US 5,327,959 provides passage holes with a chamfer.
  • the latter is shaped to prevent the penetration of the tubes inside the manifold. The risk of vortex creation is then discarded.
  • the zone for contact between the chamfers and the ends of the tubes being very small, it is not assured that this contact takes place for all the tubes, nor that the solder can take or resist at this point. Finally, the mechanical strength of the exchanger is decreased.
  • the invention aims to improve the existing.
  • the exchanger referred to corresponds to the object of claim 1.
  • the projecting portion internally rises inwardly of the manifold.
  • the receiving element is shaped in the collector.
  • the projecting portion has a section orifice adapted to the passage of an end zone of the tube.
  • the invention also relates to a collector plate for a heat exchanger provided with the characteristics described above.
  • the Figures 1 and 2 show a heat exchanger 1 for use in a motor vehicle, for example for cooling the engine.
  • the exchanger 1 comprises elongated tubes 3 for the circulation of a heat transfer fluid arranged in a bundle.
  • the tubes 3 are aligned in one or more rows, or layers.
  • the figure 2 shows that the exchanger 1 has a sheet of tubes 3.
  • each end of each of the tubes 3 opens into a respective header box 5.
  • the exchanger 1 thus comprises two similar manifolds 5 which put the tubes 3 into fluid communication with each other.
  • the manifolds 5 have a general parallelepipedal appearance. They are arranged vis-à-vis one another.
  • the heat exchanger 1 allows a heat exchange between the coolant circulating in the tubes 3 and a fluid passing through the exchanger externally, generally air.
  • the figure 3 shows a plate 9 shaped in a manifold for a said box (not shown), the collector and a cover (not shown in this figure) forming together a collecting box 5.
  • the lid is in the general shape of parallelepiped, while the collector generally extends in a plane and rectangularly.
  • the collector 9 has a central portion 10 and a rim portion 11 surrounding this central portion 10.
  • the central portion 10 has a plurality of through orifices 12, adapted in shape and position to the introduction and passage of a portion end of the tubes 3.
  • the rim portion 11 has a circumferential groove or groove 13 adapted to the housing of a seal 14.
  • the seal 14 makes it possible to seal the assembly of the cover and collector 9 of the box.
  • a peripheral portion 15 of the collector 9 is folded so as to project, almost perpendicularly, from the central portion 10. This peripheral portion is intended to come close to the side walls of the lid and to crimp it on the collector.
  • the end of the tubes 3 received in the orifices 12 is substantially at the level of the inner envelope plane 16 or slightly below.
  • FIGS. 4 to 6 show in detail a portion of the collector 9 comprising any of the orifices 12.
  • the collector 9 is shaped to have a neck portion 19 which borders the orifice 12.
  • This collar 19 projects from the inner surface of the collector 9, following a direction substantially perpendicular to the general plane of extension of this manifold 9 and from the outer shell face 17 to the inner shell face 16.
  • the free end of the collar 19 is set back from the plane of 16.
  • the collar 19 is made by repelling the material of the plate, so that a slight narrowing of the section of the orifice 12 of the outer surface of the collector 9 is formed.
  • a connecting portion 21 connects the collar 19 to the same portion 21 corresponding to the next tube passage.
  • the connecting portion 21 is made in the form of a portion which projects from the collector 9, in a direction perpendicular to the general extension plane, going from the internal envelope plane 16 to the outer envelope plane 17. connecting portion is located below the general extension plane.
  • the collector 9 has, in the vicinity of each orifice 12, a receiving element for the end of a tube 3, comprising an internally projecting portion shaped as a holding zone for this tube, a connecting portion of the portion protruding from the manifold, this connecting portion projecting from the side of the manifold 9 opposite the manifold, the protruding portion and the connecting portion having mutually opposed projection directions.
  • the openings 12 are adapted to the passage of so-called flat tubes, that is to say whose section is delimited by two long straight edges parallel to each other and connected together, each time, by a semicircular edge.
  • the collars 19 follow the shape of the orifices 12, which can be described as oblong.
  • the connecting portion 21 is made by conforming the cover plate 9 locally in an elongated boss along the length of the orifices 12.
  • the boss has a wave appearance. This corrugation can extend over practically all of the direction concerned, in particular when there are several rows of tubes: it is then possible to use the same connecting portion 21 for several collars 19 aligned in their longitudinal direction.
  • the collars 19 are attached at their base to their respective connecting portion 23 via a bent zone 23, which further facilitates the introduction of the tubes.
  • Each collar 19 can also be seen as a bead of material surrounding the orifice 12.
  • the manifold thus has a succession of bosses similar to the connection zone, that is to say in the form of corrugations, connected to each other in the transverse direction of the orifices 12.
  • the connecting portions 21 are related to each other.
  • the vertices of the corrugations are alternately contained in the inner envelope plane 16 and in the inner envelope plane 17.
  • the orifice 12 coincides, in the general extension plane, with a crest line contained in the plane of the envelope. inner envelope 17.
  • connection zones 23 comprise bases 50 which connect them to each other and by which they are connected to the rest of the collector plate.
  • the figure 7 shows a tube passage opening 12 in a manifold 9, provided with a groove 13 for housing a seal.
  • the figure 8 shows a manifold for an embodiment in which there is no groove 13, the seal then being held in position between the tubes 3 (not visible in this figure) and the flange 15 of the manifold.
  • FIGs 9 and 10 show another aspect of the invention, according to which the free end of the collar 19 is located as close as possible at a distance D1 of 2 millimeters from the internal envelope plane 16, on the side of this plane opposite to the manifold.
  • This makes it possible to arrange a tube 3 so that its end protrudes at most 2 millimeters from the internal envelope plane of the collector 9, on the side of this plane oriented towards the inside of the manifold 5 ( figure 9 ). It also becomes possible to arrange the ends of the tubes at this inner envelope plane ( figure 10 ).
  • the Figures 11 to 13 illustrates the realization of the receiving portion of the ends of the tubes 3.
  • a portion of a metal plate is shaped into a boss portion 27.
  • This deformation of the collector is done keeping substantially the thickness of the plate constant on the portions of this plate forming the boss 27.
  • the top of the boss 27 is shaped as a boss 29 rising in a direction opposite to the elevation direction of the boss 27. This involves at least one stamping operation performed from the outer face to the inner face.
  • the bump 29 is pruned from the outer face of the cover plate 9 to form an orifice 12 at the top of the bump 29. This puncture results in a thinning of the collector and an elongation of the bump 29, so that a collar 19 is formed.
  • the invention is not limited to the embodiments described above by way of example only, but encompasses all the variants that may be considered by those skilled in the art.
  • the shape of the cross section of the tubes 3 may be different from that described, for example round, "bean”, rectangular or other.
  • the number of layers of tubes is also likely to vary.

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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)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)

Claims (13)

  1. Wärmetauscher von der Art, die mindestens ein längliches Rohr (3), das für die Zirkulation eines Wärmeträgerfluids geeignet ist, und mindestens einen Sammelbehälter (5) für ein solches Fluid enthält, in den ein Ende des Rohrs mündet, wobei der Sammelbehälter einen Kollektor (9) enthält, der ein Aufnahmeelement für das Ende des Rohrs aufweist, wobei das Aufnahmeelement einen innen vorstehenden Teil (19) enthält, der in einer Haltezone für dieses Rohr ausgebildet ist, wobei das Aufnahmeelement außerdem einen Anschlussteil (21) des nach innen vorstehenden Teils an den Rest des Kollektors enthält, wobei dieser Anschlussteil auf der Seite des Kollektors entgegengesetzt zum Sammelbehälter vorsteht, damit der innen vorstehende Teil (19) und der Anschlussteil (21) zueinander entgegengesetzte Vorsprungsrichtungen aufweisen, wobei der Wärmetauscher dadurch gekennzeichnet ist, dass die Anschlussteile (21) Grundflächen (50) aufweisen, durch die sie sich an den in der gleichen Ebene, innere Hüllenebene (16) des Kollektors genannt, befindlichen Rest der Kollektorplatte anschließen, und der innen vorstehende Teil sich zur Ebene zurückversetzt befindet, damit die Haltezone des Rohrs innen nicht über die Ebene hinausgeht.
  2. Tauscher nach Anspruch 1, wobei der vorstehende Teil und der Anschlussteil sich in Längsrichtung des Rohrs erheben.
  3. Tauscher nach einem der Ansprüche 1 und 2, wobei die Haltezone in Formübereinstimmung mit der Außenseite des Rohrs in der Nähe seines in den Sammelbehälter mündenden Endes gestaltet ist.
  4. Tauscher nach einem der vorhergehenden Ansprüche, wobei das Ende des Rohrs um höchstens 2 Millimeter über die innere Hüllenebene des Kollektors auf der Seite dieser Ebene hinausgeht, die zur Innenseite des Sammelbehälters gerichtet ist.
  5. Tauscher nach einem der vorhergehenden Ansprüche, wobei das Ende des Rohrs im Wesentlichen im Bereich der inneren Hüllenebene des Kollektors angeordnet ist.
  6. Tauscher nach einem der vorhergehenden Ansprüche, wobei das Ende des Rohrs sich in einem Abstand von weniger als 4 Millimeter von der inneren Hüllenebene des Kollektors auf der Seite dieser Ebene befindet, die zur Außenseite des Sammelbehälters gerichtet ist.
  7. Tauscher nach einem der vorhergehenden Ansprüche, wobei der Kollektor aus einem Plattenmaterial einer Dicke zwischen 0,8 und 1,8 Millimeter, vorzugsweise zwischen 1,2 und 1,5 Millimeter, hergestellt wird.
  8. Tauscher nach einem der vorhergehenden Ansprüche, der ein Bündel von Rohren enthält, die für die Zirkulation des Wärmeträgerfluids geeignet sind, wobei das Bündel eine Abstandsteilung der Rohre zwischen 5 und 15 Millimeter, und vorzugsweise zwischen 6 und 10 Millimeter, aufweist.
  9. Tauscher nach einem der vorhergehenden Ansprüche, wobei der Behälter einen auf den Sammelbehälter aufgequetschten Deckel enthält.
  10. Tauscher nach einem der Ansprüche 1 bis 9, wobei der Behälter einen auf die Kollektorplatte gelöteten Deckel enthält.
  11. Tauscher nach einem der vorhergehenden Ansprüche, wobei das Rohr oder die Rohre durch Falten einer Materialfolie erhalten werden.
  12. Tauscher nach Anspruch 11, wobei die Rohre mit nach innen vorstehenden Riffelungen versehen sind.
  13. Kollektorplatte für einen Wärmetauscher nach einem der vorhergehenden Ansprüche.
EP11711331.6A 2010-03-31 2011-03-29 Wärmetauscher mit erhöhter leistung Active EP2553376B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11711331T PL2553376T3 (pl) 2010-03-31 2011-03-29 Wymiennik ciepła o podwyższonej wydajności

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1052447A FR2958385B1 (fr) 2010-03-31 2010-03-31 Echangeur de chaleur a performances accrues
PCT/EP2011/054843 WO2011120977A2 (fr) 2010-03-31 2011-03-29 Echangeur de chaleur à performances accrues

Publications (2)

Publication Number Publication Date
EP2553376A2 EP2553376A2 (de) 2013-02-06
EP2553376B1 true EP2553376B1 (de) 2014-02-12

Family

ID=43242120

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11711331.6A Active EP2553376B1 (de) 2010-03-31 2011-03-29 Wärmetauscher mit erhöhter leistung

Country Status (8)

Country Link
US (1) US9366487B2 (de)
EP (1) EP2553376B1 (de)
JP (1) JP5952259B2 (de)
KR (1) KR20130022405A (de)
CN (1) CN102933930B (de)
FR (1) FR2958385B1 (de)
PL (1) PL2553376T3 (de)
WO (1) WO2011120977A2 (de)

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FR3015016B1 (fr) * 2013-12-13 2019-05-17 Valeo Systemes Thermiques Boite collectrice et echangeur thermique correspondant
DE102014213758A1 (de) * 2014-07-15 2016-01-21 Mahle International Gmbh Rohrboden und Wärmeübertrager
JP6583071B2 (ja) * 2015-03-20 2019-10-02 株式会社デンソー タンク、および熱交換器
DE102015209130A1 (de) * 2015-05-19 2016-11-24 Mahle International Gmbh Wärmeübertrager
FR3036469B1 (fr) * 2015-05-22 2017-06-09 Valeo Systemes Thermiques Plaque collectrice pour echangeur de chaleur, notamment pour vehicule automobile
FR3037643B1 (fr) * 2015-06-22 2019-07-12 Valeo Systemes Thermiques Echangeur de chaleur et procede de fabrication associe
US10378834B2 (en) * 2015-07-07 2019-08-13 Mahle International Gmbh Tube header for heat exchanger
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DE102020202962A1 (de) * 2020-03-09 2021-09-09 Hanon Systems Sammler eines Wärmeübertragers für ein Fahrzeug und derartiger Wärmeübertrager
LU101721B1 (en) * 2020-03-31 2021-09-30 Ht Holding Luxembourg S A Heat exchanger

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Publication number Publication date
CN102933930B (zh) 2016-08-24
JP5952259B2 (ja) 2016-07-13
CN102933930A (zh) 2013-02-13
FR2958385B1 (fr) 2013-01-18
EP2553376A2 (de) 2013-02-06
WO2011120977A3 (fr) 2012-02-02
JP2013524145A (ja) 2013-06-17
KR20130022405A (ko) 2013-03-06
PL2553376T3 (pl) 2014-10-31
FR2958385A1 (fr) 2011-10-07
US9366487B2 (en) 2016-06-14
WO2011120977A2 (fr) 2011-10-06
US20130160973A1 (en) 2013-06-27

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