EP2360379B1 - Dispositif de guidage avec une poutre en métal - Google Patents

Dispositif de guidage avec une poutre en métal Download PDF

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Publication number
EP2360379B1
EP2360379B1 EP11002865.1A EP11002865A EP2360379B1 EP 2360379 B1 EP2360379 B1 EP 2360379B1 EP 11002865 A EP11002865 A EP 11002865A EP 2360379 B1 EP2360379 B1 EP 2360379B1
Authority
EP
European Patent Office
Prior art keywords
bellows
cup
housing
guide
guiding device
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
EP11002865.1A
Other languages
German (de)
English (en)
Other versions
EP2360379A2 (fr
EP2360379A3 (fr
Inventor
Herbert Baltes
Marc Wellner
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.)
Hydac Technology GmbH
Original Assignee
Hydac Technology 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 Hydac Technology GmbH filed Critical Hydac Technology GmbH
Publication of EP2360379A2 publication Critical patent/EP2360379A2/fr
Publication of EP2360379A3 publication Critical patent/EP2360379A3/fr
Application granted granted Critical
Publication of EP2360379B1 publication Critical patent/EP2360379B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • F15B1/04—Accumulators
    • F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
    • F15B1/10—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means
    • F15B1/103—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means the separating means being bellows
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2201/00—Accumulators
    • F15B2201/20—Accumulator cushioning means
    • F15B2201/205—Accumulator cushioning means using gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2201/00—Accumulators
    • F15B2201/30—Accumulator separating means
    • F15B2201/315—Accumulator separating means having flexible separating means
    • F15B2201/3153—Accumulator separating means having flexible separating means the flexible separating means being bellows
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2201/00—Accumulators
    • F15B2201/30—Accumulator separating means
    • F15B2201/315—Accumulator separating means having flexible separating means
    • F15B2201/3158—Guides for the flexible separating means, e.g. for a collapsed bladder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2201/00—Accumulators
    • F15B2201/40—Constructional details of accumulators not otherwise provided for
    • F15B2201/415—Gas ports

Definitions

  • the invention relates to a guide device with a metal bellows, which has at least one bellows end at least when pulling out and contraction of the bellows along the wall of a housing movable end body, between which and the housing, a guide element is present, wherein the guide element separated by a plurality, is formed at intervals from one another on the circumference of the end body arranged guide body, wherein the end body is a the interior of the bellows at one end tightly closing closure body, wherein the closure body of the bellows is provided as a movable separating element between the gas side and fluid side of a hydraulic accumulator, and wherein the guide body as serve along the inner wall of the storage housing movable sliding body.
  • Metal bellows are used in various technical fields as a variable-length component, for example, if a length compensation lines or couplings for fluid media is required.
  • Metallic bellows are also widely used in hydraulic accumulators as a movable separating element between the gas side and the fluid side. In particular, in applications in which the movements during expansion and contraction of the bellows take place relatively widely, it is essential for the life of the bellows, that the respective end of the bellows, which moves in operation along a housing wall, is guided safely.
  • a guide element at the movable end of the respective bellows.
  • the movable end body of the bellows is a closure body which separates the gas side of the fluid side in a hydraulic accumulator within the storage housing
  • a guide ring is provided as a guide element which surrounds the outer periphery of the closure body and an outer Sliding surface forms, which is movable along the inner wall of the storage enclosure.
  • a guide device of the type mentioned for a metal bellows which has at least one Balgende a movable during extension and contraction of the bellows along the wall of a housing end body, between which and the housing, a guide element is present, and wherein the guide element by a A plurality of separate, arranged at intervals from one another on the circumference of the end body guide body is formed.
  • the known solution allows weight savings, so that there is an improved response, as pull-out and contraction movements the bellows counteracts a lower mass inertia.
  • the performance is improved by the fact that the leadership is carried out with reduced friction and allows media to pass through openings.
  • the known solution but still leaves nothing to be desired.
  • the invention has for its object to provide a guide device available, which is characterized by a contrast simpler, a particularly cost-effective production enabling construction.
  • the essential feature of the invention according to the characterizing part of claim 1 is that the bottom of the closure body forming pot has a protruding on the inside of the bellows into the interior of the fluid space annular rib, which is fully collapsed bellows as Endlagenbegrenzung with an investment and centering cooperates on the bottom plate of the storage enclosure.
  • the serving as a closure body pot is guided not only during the movement along the storage housing, but moves when contracting into a defined and centered in the housing end position.
  • the invention in this case has the investment and centering a recessed in the bottom plate annular groove in which for the interaction with the annular rib of the pot an elastomeric seal on which it rests at the end position of the bellows, and a metallic centering ring are added, which has an inclined centering has, at the start of the retraction into the end position, the annular rib of the pot.
  • the elastomeric sealing ring in cooperation with the annular rib of the pot also forms a kind of cushioning, while the slope of the centering causes the alignment in the end position.
  • the invention is particularly suitable for applications in which the end body is a closure body which seals the interior of the bellows tightly at one end, ie for applications in which the extraction and contraction of the bellows leads to volume changes of the relevant media spaces.
  • the closure body may be pot-shaped and have an annular, the respective end of the bellows cross-peripheral edge, which is followed by a circular cylindrical side wall extending into the interior of the bellows pot, wherein the guide body may be formed by guide shoes, in cross-section have a U-like profile and, the peripheral edge of the pot across, with a profile leg in each case form a sliding surface on the housing wall.
  • the guide shoes by overlapping the peripheral edge of the closure body forming pot can be clamped by its elasticity like a clip with the peripheral edge, locking elements may be present to form a Verhakung.
  • the guide shoes are formed by a plastic material good sliding properties, resulting in a lightweight, easy to produce by injection molding construction.
  • the closure body of the bellows is a movable separating element between the gas side and the fluid side a hydraulic accumulator provided, wherein the guide body serve as along the inner wall of the storage housing movable sliding body. Thanks to the design of the guide device according to the invention, such a hydraulic accumulator is characterized by a particularly favorable operating behavior.
  • one end of the bellows is fixed to a bottom plate of the storage housing, which has an opening for the fluid access into the interior of the bellows, the closure body located at the other end corresponding to the movement during extension and contraction of the bellows, the respective volumes of gas side and defined inside the bellows fluid side defined within the storage enclosure.
  • the invention is according to claim 7, a hydraulic accumulator with a storage housing, in which a metal bellows is provided as a movable separating element between a gas side and a fluid side, for which a guide device according to one of the claims 1 to 6 is present.
  • a hydraulic accumulator 1 in the interior of its storage housing has a metal bellows 3 as a movable separating element between a gas side receiving gas 5 and a fluid side 7.
  • the latter is connected to a fluid connection 9 for the supply of the relevant working fluid (usually hydraulic oil) in connection.
  • the storage housing itself forms over at least the length range in which the movement of the bellows 3 takes place during extension and contraction, a hollow circular cylinder 10 with the inner wall 11, the guide means of the metal bellows 3 cooperates to guide them during extension and contraction.
  • a filling connection 15 for a working gas such as N 2 At the end of the storage housing associated with the gas side 5 there is a filling connection 15 for a working gas such as N 2 .
  • the bottom plate 17 7 has a central passage opening 19 through which the access from the fluid port 9 is formed to the fluid side 7 in the interior of the metal bellows 3, wherein at the opening 19, this an inwardly expanding slope 21 is provided for flow optimization.
  • the fluid side 7 facing top of the bottom plate 17 is not flat, but has in the region adjacent to the opening 19 area the largest thickness with an axis 23 concentric annular surface 25, at the radially outer edge of a recess with an annular groove 27 connects, in an elastomer sealing ring 29 and a metallic centering ring 31 are received.
  • the closure body 39 is pot-shaped, in such a way that adjoins an annular peripheral edge 41 which defines a plane perpendicular to the axis 23 radial plane, a radially further inward pot portion, wherein the circular cylindrical side wall 43 of the pot protrudes into the interior of the metal bellows 3 , so that when the closure body 39 with fully extended bellows 3, the in Fig. 1 has reached the end position shown, for the gas side 5 remains an enlarged by the interior of the pot residual volume.
  • the side wall 43 is connected by a pot bottom 45, which is flat in the interior of the pot.
  • the weld 47 At the underside 64 of the peripheral edge 41 adjoining the bellows end, there is the weld 47, on which, in a manner corresponding to the weld 33 on the bottom plate 17, the weld line for the tight weld connection with the respective end 37 of the bellows 3 is formed.
  • guide shoes 49 As a guide body for guiding the movable end 37 of the bellows 3 guide shoes 49 are provided, which are pointed molded from a plastic material having good sliding properties. As is clear from the drawing, in particular Fig. 2 is clearly seen, the guide shoes 49 have the shape of a short U-shaped profile on the whole and are distributed on the closure body 39, the peripheral edge 41, at regular intervals around the circumference, wherein six guide shoes 49 are provided in the present embodiment. These each have a profile leg 51 with the axis 23 concentric curvature and form with this profile leg 51 each have a sliding surface for the system on the Inner wall 11 of the housing cylinder 10. This profile leg 51 is connected to the inner profile leg 53 via the peripheral edge 41 of the closure body 39 cross web 55.
  • the webs 55 do not extend above the upper radial plane defining annular surface 60 of the peripheral edge 41, but sit in depressions 62 which are suitable for the guide shoes 49 in the peripheral edge 41 and the material thickness of the peripheral edge 41 between its bottom 64 and the annular surface 60th reduce area, so as to form a seat for a respective guide shoe 49.
  • These are not only secured in the recesses 62 against displacement in the circumferential direction, but also secured against lifting in the axial direction.
  • locking notches 52 and 54 are respectively provided on the inner sides of the profile legs 51 and 53.
  • the pot bottom 45 positioned.
  • This has on its bottom plate 17 facing the underside of a circumferential, projecting annular rim 57 which, when approaching the in Fig. 2 shown end position, guided on an inclined surface 59 of the centering ring 31, in a centered position, in which it rests on the elastomeric sealing ring 29.
  • the elastomeric sealing ring 29 functions not only as the buffer noise attenuating buffer, but seals the fluid inlet region at the opening 19 of the bottom plate 17 relative to the remaining on the inside of the bellows 3 residual fluid space 61, so that the residual volume of the space 61 incompressible fluid in addition to cushioning contributes.
  • the guide shoes 49 are preferably formed of a plastic material, such as polytetrafluoroethylene (PTFE), which has good sliding properties and is abrasion resistant and temperature resistant.
  • PTFE polytetrafluoroethylene
  • Fig. 2 is removable, located between the ring edge 57 bottom of the pot bottom 45 is not flat, but has a pattern of grooves 63 shallow depth, so that in the end position of the bottom 45 no fluid-tight closure at the edge of the opening 19 forms, so here a passage for residual fluid remains.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Claims (7)

  1. Dispositif de guidage comprenant un soufflet (3) métallique,
    - qui a, à au moins une extrémité (37) du soufflet, une pièce (39) d'extrémité mobile le long de la paroi (11) d'une enveloppe (10) lorsque le soufflet (3) se déplie et se replie,
    - dans lequel il y a un élément de guidage entre cette pièce d'extrémité et l'enveloppe (10),
    - dans lequel l'élément de guidage est formé par une pluralité de pièces (49) de guidage distinctes, disposées à distance les unes des autres sur le pourtour de la pièce (39) d'extrémité,
    - dans lequel la pièce (39) d'extrémité est un obturateur (39) fermant de manière étanche l'espace intérieur du soufflet (3) à une extrémité (37),
    - dans lequel l'obturateur (39) du soufflet (3) est prévu sous la forme d'un élément de séparation mobile entre le côté (5) pour du gaz et le côté (7) pour du fluide d'un accumulateur hydraulique et
    - dans lequel les pièces (49) de guidage servent de coulisseaux mobiles le long de la paroi (11) intérieure de l'enveloppe (10) de l'accumulateur,
    - caractérisé en ce qu'un fond (45) du pot associé à l'obturateur (39) comprend une nervure (57) annulaire, qui, sur le côté intérieur du soufflet (3), a une nervure (57) annulaire qui est en saillie à l'intérieur de l'espace (7) pour du fluide et qui, lorsque le soufflet (3) est replié complètement, coopère, comme limitation de position d'extrémité, avec un agencement (29,31,59) d'application et de centrage sur un plateau (17) de fond de l'enveloppe (10) de l'accumulateur et
    - en ce que l'agencement d'application et de centrage a une rainure (27) annulaire, qui est creusée dans le plateau (17) de fond et dans laquelle sont reçus, pour la coopération avec la nervure (57) annulaire du pot, un joint (29) en élastomère sur lequel cette nervure s'applique en la position d'extrémité du soufflet (3), ainsi qu'un anneau (31) métallique de centrage, qui a une surface (59) inclinée de centrage sur laquelle, lors de l'entrée dans la position d'extrémité, la nervure (57) annulaire du pot se met.
  2. Dispositif de guidage suivant la revendication 1, caractérisé en ce qu'une extrémité (35) du soufflet (3) est fixée à un plateau (17) de fond de l'enveloppe (10) de l'accumulateur, plateau qui a une ouverture pour l'accès du fluide à l'intérieur du soufflet (3), dont l'obturateur (9) se trouvant à l'autre extrémité (37) définit à l'intérieur de l'enveloppe (10) de l'accumulateur, conformément aux déplacements lorsque le soufflet (3) se déplie et se replie, les volumes respectifs du côté (5) du gaz et du côté (7) du fluide se trouvant à l'intérieur du soufflet (3).
  3. Dispositif de guidage suivant l'une des revendications 1 ou 2,
    caractérisé en ce que l'obturateur est conformé en pot et a un bord (41) périphérique annulaire recouvrant l'extrémité (37) concernée du soufflet (3), bord auquel se raccorde une paroi (43) latérale en forme de cylindre de section droite circulaire du pot s'étendant à l'intérieur du soufflet (3) et en ce que les pièces de guidage sont formées par des sabots (49) de guidage, qui ont en section transversale un profil semblable à un U et qui forment, en recouvrant le bord (41) périphérique du pot par une branche (51) du profil, respectivement une surface de glissement sur la paroi (11) de l'enveloppe
  4. Dispositif de guidage suivant la revendication 3, caractérisé en ce qu'il y a sur l'une (51) et/ou sur les deux branches (51,53) du profil du côté intérieur une encoche (52 ou 54) d'encliquetage de manière à rendre possible, pour un clipsage du sabot (9) de guidage concerné sur le bord (41) périphérique, un encliquetage avec un épaulement (58) d'encliquetage sur la paroi (43) latérale du pot ou sur le pourtour extérieur du bord (41) périphérique.
  5. Dispositif de guidage suivant l'une des revendications 3 ou 4,
    caractérisé en ce que les sabots (49) de guidage sont formés d'une matière plastique ayant de bonnes propriétés de glissement.
  6. Dispositif de guidage suivant l'une des revendications 3 à 5,
    caractérisé en ce que la surface extérieure, tournée vers le côté (7) pour du fluide du fond (45) du pot de l'obturateur (39), a au moins une cavité (63) de type en rainure.
  7. Accumulateur hydraulique ayant une enveloppe (10) d'accumulateur, dans lequel, il y a pour celui-ci un dispositif (49) de guidage suivant l'une des revendications 1 à 6.
EP11002865.1A 2007-08-01 2008-04-05 Dispositif de guidage avec une poutre en métal Not-in-force EP2360379B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007036487A DE102007036487A1 (de) 2007-08-01 2007-08-01 Führungseinrichtung für einen Metallbalg
EP08735049A EP2183489B1 (fr) 2007-08-01 2008-04-05 Dispositif de guidage pour soufflet métallique

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP08735049A Division EP2183489B1 (fr) 2007-08-01 2008-04-05 Dispositif de guidage pour soufflet métallique
EP08735049.2 Division 2008-04-05

Publications (3)

Publication Number Publication Date
EP2360379A2 EP2360379A2 (fr) 2011-08-24
EP2360379A3 EP2360379A3 (fr) 2012-02-29
EP2360379B1 true EP2360379B1 (fr) 2014-07-02

Family

ID=39534894

Family Applications (2)

Application Number Title Priority Date Filing Date
EP08735049A Not-in-force EP2183489B1 (fr) 2007-08-01 2008-04-05 Dispositif de guidage pour soufflet métallique
EP11002865.1A Not-in-force EP2360379B1 (fr) 2007-08-01 2008-04-05 Dispositif de guidage avec une poutre en métal

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP08735049A Not-in-force EP2183489B1 (fr) 2007-08-01 2008-04-05 Dispositif de guidage pour soufflet métallique

Country Status (5)

Country Link
US (1) US8443841B2 (fr)
EP (2) EP2183489B1 (fr)
AT (1) ATE515637T1 (fr)
DE (1) DE102007036487A1 (fr)
WO (1) WO2009015705A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE102008061221A1 (de) * 2008-12-09 2010-06-10 Hydac Technology Gmbh Hydrospeicher, insbesondere Balgspeicher
DE102009044039A1 (de) 2009-09-17 2011-03-24 Contitech Techno-Chemie Gmbh Druckpulsationsdämpfer
EP2519747B1 (fr) 2009-12-30 2013-10-09 Hydac Technology Gmbh Dispositif de guidage pour soufflet métallique
EP2519748B1 (fr) 2009-12-30 2016-10-19 Hydac Technology Gmbh Accumulateur de pression, en particulier accumulateur à soufflet
DE102009060852A1 (de) 2009-12-30 2011-07-07 HYDAC Technology GmbH, 66280 Hydrospeicher, insbesondere Pulsationsdämpfer
DE102010005410A1 (de) * 2010-01-22 2011-07-28 HYDAC Technology GmbH, 66280 Hydrospeicher
US9080710B2 (en) * 2011-01-21 2015-07-14 Hamilton Sundstrand Corporation Accumulator reservoir venting
DE102011116814A1 (de) * 2011-10-22 2013-04-25 Hydac Technology Gmbh Hydrospeicher in Form eines Balgspeichers
FR2997151B1 (fr) * 2012-10-18 2015-06-26 Ratier Figeac Soc Amortisseur avec fonction ressort associee
US9512835B2 (en) * 2012-11-01 2016-12-06 Alloy Bellows and Precision Welding, Inc. High pressure bellows assembly
DE102013011115A1 (de) * 2013-07-03 2015-01-08 Hydac Technology Gmbh Vorrichtung zum Einstellen eines Mediendruckes gegenüber einem Umgebungsdruck
CN103867843A (zh) * 2013-12-01 2014-06-18 太原航空仪表有限公司 储箱式月牙形波纹管组合件
DE102014208375A1 (de) * 2014-05-05 2015-11-05 Wobben Properties Gmbh Hydraulikflachzylinder, Hydraulikhubkissen, Verwendung eines solchen und Verfahren zum Ausrichten eines Generators
US9657556B2 (en) 2014-11-17 2017-05-23 Baker Hughes Incorporated Metal bellows with guide rings
CN104779036B (zh) * 2015-04-18 2018-03-27 孙艺夫 适于运输的外油立式金属波纹储油柜及其运输方法
DE102016008882A1 (de) * 2016-07-20 2018-01-25 Hydac Technology Gmbh Spannzylindervorrichtung
EP3604822B1 (fr) 2017-03-21 2022-09-07 Eagle Industry Co., Ltd. Machine à fluide

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US2365994A (en) * 1944-03-22 1944-12-26 Electrol Inc Accumulator
FR2156489B1 (fr) * 1971-10-22 1974-10-11 Lucas Industries Ltd
JPH02113139A (ja) 1988-10-20 1990-04-25 Nhk Spring Co Ltd アキュムレータ
JP2539905B2 (ja) * 1989-01-20 1996-10-02 日本発条株式会社 アキュムレ―タ
JPH02266101A (ja) * 1989-04-05 1990-10-30 Nhk Spring Co Ltd アキュムレータ
JP3692638B2 (ja) * 1996-07-04 2005-09-07 日本発条株式会社 メタルベローズアキュムレータ
WO2000031420A1 (fr) * 1998-11-25 2000-06-02 Continental Teves Ag & Co. Ohg Accumulateur d'agent de pression
DE60018503T2 (de) 1999-05-12 2006-04-13 NHK Spring Co., Ltd., Yokohama Druckspeicher und dessen Herstellungsverfahren
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EP1391614B1 (fr) 2000-05-30 2006-05-17 NHK Spring Co., Ltd. Accumulateur
JP4272604B2 (ja) * 2004-08-23 2009-06-03 日本発條株式会社 圧力容器及び蓄圧・緩衝装置
EP2519747B1 (fr) * 2009-12-30 2013-10-09 Hydac Technology Gmbh Dispositif de guidage pour soufflet métallique

Also Published As

Publication number Publication date
EP2360379A2 (fr) 2011-08-24
WO2009015705A1 (fr) 2009-02-05
EP2183489B1 (fr) 2011-07-06
EP2183489A1 (fr) 2010-05-12
EP2360379A3 (fr) 2012-02-29
ATE515637T1 (de) 2011-07-15
DE102007036487A1 (de) 2009-02-05
US8443841B2 (en) 2013-05-21
US20100186843A1 (en) 2010-07-29

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