EP1794447A2 - Nacelle pour installation a energie eolienne, joint tournant pour installation a energie eolienne, installation a energie eolienne, et procede pour faire fonctionner une installation a energie eolienne - Google Patents

Nacelle pour installation a energie eolienne, joint tournant pour installation a energie eolienne, installation a energie eolienne, et procede pour faire fonctionner une installation a energie eolienne

Info

Publication number
EP1794447A2
EP1794447A2 EP05798006A EP05798006A EP1794447A2 EP 1794447 A2 EP1794447 A2 EP 1794447A2 EP 05798006 A EP05798006 A EP 05798006A EP 05798006 A EP05798006 A EP 05798006A EP 1794447 A2 EP1794447 A2 EP 1794447A2
Authority
EP
European Patent Office
Prior art keywords
nacelle
side part
wind
gondola
wind energy
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP05798006A
Other languages
German (de)
English (en)
Inventor
Marcus Ihle
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.)
IHLE, MARCUS
Original Assignee
Spaceframe21 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 Spaceframe21 GmbH filed Critical Spaceframe21 GmbH
Publication of EP1794447A2 publication Critical patent/EP1794447A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/0204—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor for orientation in relation to wind direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/70—Bearing or lubricating arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/10—Stators
    • F05B2240/14—Casings, housings, nacelles, gondels or the like, protecting or supporting assemblies there within
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/10—Geometry two-dimensional
    • F05B2250/18—Geometry two-dimensional patterned
    • F05B2250/184—Geometry two-dimensional patterned sinusoidal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/60—Structure; Surface texture
    • F05B2250/61—Structure; Surface texture corrugated
    • F05B2250/611—Structure; Surface texture corrugated undulated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05B2260/79—Bearing, support or actuation arrangements therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/96—Preventing, counteracting or reducing vibration or noise
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • Nacelle for a wind turbine Rotary connection for a Wind ⁇ energy plant; Wind turbine; Method for operating a wind energy plant
  • the invention relates to a nacelle for a wind energy plant (WEA), according to the preamble of claim 1, a Drehverbin ⁇ tion for a wind turbine, according to the preamble of claim 7, a wind turbine, according to the preamble of claim 24, and of a method for operating a Windenergyla ⁇ ge, according to the preamble of claim 31.
  • WEA wind energy plant
  • wind turbines which generally consist of a tower and of a gondola which is rotatable on the tower and can be tracked and braked by means of wind direction tracking bearings (usually single or double-row rotary joints) rotatable about a vertical axis, are one with at least one Rotor blade provided to ei ⁇ ne horizontally rotatably mounted rotor hub, with respect to the loads occurring, the derivative thereof in the tower and manufacturing tasks continue to develop.
  • wind direction tracking bearings usually single or double-row rotary joints
  • the nacelle according to the invention for a wind energy plant has the advantage that due to its wave-shaped base frame, which is connected with ei ⁇ ner rotary connection, point loads arise at the connection points, which are optimally derivable.
  • the base frame is sinusoidal.
  • the inventive gondola of the base frame is divided into segments. As a result, the parts of the base frame are individually interchangeable.
  • the supporting structure of the nacelle according to the invention is formed from a truss structure.
  • the Rods connecting truss nodes is an optimal transmission of the occurring tensile and compressive forces.
  • the truss structure is self-supporting. This increases the carrying capacity at lower specific weights.
  • the truss structure is at least partially clad with an outer skin. This ensures an individual adaptation to design and technical requirements.
  • the rotary joint according to the invention for a wind energy plant has the advantage over the prior art that the bearing-forming means has at least one roller.
  • This standard component provides an easy-to-monitor and cost-effective rotary joint.
  • the roller is held on the gondola and / or on the tower side part.
  • the nacelle-side part, on which the nacelle is arranged is supported via the roller on the tower-side part and / or is supported on the roller arranged on the tower-side part.
  • the role is a standard Schwerlast ⁇ role, comparable to a railway role.
  • the nacelle and / or tower-side part is subdivided into segments, whereby a single interchangeability is given.
  • the nacelle and / or tower-side part is at least partially designed as a runway.
  • the nacelle-side part is designed as a frame.
  • a toothing is arranged coaxially to the nacelle-side part on the nacelle-side part. At least one pinion driven by a motor engages in the toothing, as a result of which the rotation of the wind direction tracking follows.
  • Common technology for the toothing is the so-called involute toothing (colloquially referred to as "toothed wheels").
  • the rotary joint according to the invention can be operated with any type of toothing.
  • the inventive rotary joint toothing is a Triebstock ⁇ toothing.
  • the rack and pinion gearing is a simple form of gearing, which looks back on a long technological tradition and is used with low demands on accuracy (eg weirs in dams). Due to a In the prevailing wind direction, the wear of the driving-gear toothing in the wind power plant takes place only in a limited area.
  • the rack and pinion of shoot stock bolt which are individually interchangeable.
  • a receiving element is provided for receiving a coaxial with the gondeleleite part arranged receiving frame for a king pin on the gondola side part.
  • At least one load value sensor is arranged on the kingpin for stress analysis.
  • the King pin which has also been used in Bockwindmühlen or warhorses, serves to receive acting in the horizontal direction forces. Loads occurring on the kingpin are continuously measured during operation by the load transducer, thereby monitoring the fatigue of the component, so that the kingpin, which is usually a simple rotary part producible on a lathe, can be replaced at an early stage.
  • the load-value sensor is a strain gauge.
  • At least one securing means is present, whereby lifting of the nacelle is prevented.
  • the securing means is a re ⁇ dundante Abheingsch. Due to this additional expenditure, which would actually not necessarily be necessary in the rotary joint according to the invention, however, the reliability of the rotary connection according to the invention is increased.
  • the securing means is arranged on the tower-side part.
  • the securing means is integrated on the kingpin.
  • the wind energy installation according to the invention has the advantage over the prior art that it is predominantly composed of standard components (profiled steels, standard purchased parts, simple turned parts, or the like) which are easily assembled monitor and are inexpensive.
  • components required for the operation are easy to produce and / or easily replaceable.
  • At least some of the components made of steel are made of shipbuilding steel.
  • Shipbuilding steel is often referred to in the art as "good natured", i. a very conservative material with regard to strength reserves and resistance to hydrogen embrittlement, a phenomenon which occurs massively in a saline environment.
  • storage possibilities for spare parts are provided in the wind energy installation according to the invention.
  • a storage possibility of spare parts is provided in the nacelle, whereby the access is further accelerated and the repair-related downtime is drastically minimized.
  • At least one crane (mobile, permanently installed), which may be a commercially available winch, provided in the wind turbine according to the invention.
  • At least one accommodation option is provided in the wind energy installation according to the invention.
  • the overnight stay of, for example, service personnel is It is quite conceivable that the overnight accommodation is used in See ⁇ emergency rescue or in the course of adventure holidays a Ho ⁇ tel is set up.
  • the equipment (beds, sanitary facilities, etc.) of accommodation is variable and adapted to the purpose of use.
  • a helicopter platform is provided on the wind turbine.
  • the helicopter platform is provided on the nacelle.
  • the inventive method for operating a Windener ⁇ giestrom, according to any one of claims 24 to 30, with the kenn ⁇ characterizing feature of claim 31, over the prior art has the advantage that elementary for the operation erforderli ⁇ che components that, regardless of wind turbine type, easily replaceable and / or easily manufactured anywhere, thereby minimizing downtime is effected. This increases the technical availability of the wind power plant according to the invention, as a result of which its yield is optimized.
  • the replacement of a component takes place before the occurrence of a malfunction (preventive maintenance).
  • FIG. 1 is an isometric view of a truss structure of a nacelle according to the invention
  • FIG. 2 is a main view of a truss structure of a nacelle according to the invention
  • FIG. 3 is a plan view of a truss structure of a nacelle according to the invention.
  • FIG. 5 is a side view of a truss structure of a nacelle according to the invention.
  • FIG. 6 is an isometric view of a wavy Grund ⁇ frame of a nacelle according to the invention
  • FIG. 7 is a main view of a wavy base frame of a nacelle according to the invention
  • 8 is a plan view of a wavy base frame of a nacelle according to the invention
  • FIG. 9 shows an isometric view of a nacelle according to the invention arranged on a rotary joint according to the invention
  • FIG. 10 shows a main view of a gondola according to the invention arranged on a rotary joint according to the invention
  • FIG. 11 is a side view of a arranged on a rotary connection according to the invention gondola according to the invention
  • FIG. 12 shows a top view of a gondola according to the invention arranged on a rotary connection according to the invention
  • FIG. 16 shows a detail view of a rotary joint according to the invention
  • FIG Fig. 17 is an exploded isometric view of a rotary joint according to the invention.
  • the gondola 1 shows an isometric view of a truss structure of a nacelle 1 according to the invention.
  • the gondola 1 is composed of bars 2 which form nodes 3 at their points of intersection.
  • the conclusion in the direction of a rotor hub, not shown, is formed by a ring 4.
  • the vertical load distribution takes place via the gondola-side connection points 5.
  • the advantage of the truss construction is that it offers a variety of possibilities for the design of the inventive gondola 1 due to its variability and also attachments to modular system (comparable to known technology toys such as "fischertechnik") are easily possible.
  • FIG. 2 and FIG. 3 show a main view and a plan view of a truss structure of a nacelle 1 according to the invention. It becomes clear that the ring 4 does not necessarily have to be aligned vertically, but can be arranged somewhat inclined (Ro torax tendency).
  • the detail views X and Y as well as a cut in the plane are shown in Fig. 4.
  • FIG. 5 shows a side view of a truss structure of a nacelle 1 according to the invention.
  • FIG. 6 shows an isometric view of a base frame 6 of a nacelle according to the invention.
  • the base frame is wavy configured and connected via the gondola-side connection points 5 with the specialist factory construction.
  • tower-side connection points 7 the connection of the base frame 6 with the rotary connection, not shown, takes place. It is clear that the base frame 6 is composed of several segments 8.
  • Fig. 7 shows a main view of a wavy base frame of a nacelle according to the invention.
  • Fig. 8 shows a plan view of a wave-shaped base frame of a nacelle according to the invention.
  • joints 9 of the segments 8 in the present case are arranged above the tower-side connection points 7 and below the connection points 5 on the gondola side.
  • FIG. 9 shows an isometric view of a nacelle 1 according to the invention arranged above the tower-side connecting points 7 on a rotary joint 10 according to the invention.
  • the rotary joint 10 according to the invention is supported on the tower 11 and makes possible a rotation about the vertical tower vertical axis of the nacelle according to the invention 1 on the tower 11.
  • the inventive Dreh ⁇ 10 consists of a nacelle-side part 12, which is designed as a frame 14, and a tower-side part 13.
  • brackets 15 are attached to nen as a bearing forming means rollers 16, which may be, for example, conventional standard heavy-duty castors, easily replaceable are arranged.
  • the tower-side part 13 is advantageously designed as a runway 17.
  • a rack and pinion gear 18 is additionally mounted, by the at least one pinion 19 which is driven by a drive, not shown, an active wind tracking, which can also be designed to be braked, the nacelle 1 according to the invention is made possible.
  • the standard steel pins of the rack and pinion teeth 18 are not shown pictorially for reasons of clarity.
  • Coaxial with the individual components of the rotary connection 10 according to the invention, which are preferably constructed, for example by subdivision, in such a way that they are easily replaceable there is a holder 20 fixed to the tower 11 and introduced into the tower 11 for load introduction serves to accommodate tensile forces a kingpin 21, which is an easy to produce rotary part.
  • the kingpin 21 is gimballed on a receiving frame 22, which in turn is gimballed to a receiving element 23 connected to the gondola-side part 12.
  • the rotary connection 10 according to the invention is accessible via a manhole 24.
  • FIGS. 10 to 12 show a main view, a side view and a top view of the nacelle 1 according to the invention arranged on a rotary joint 10 according to the invention.
  • FIGS. 14 and 15 show a main view and a side view of the rotary joint 10 according to the invention, which can be placed on a conventional tower 11 via a flange connection 27.
  • the detail X marked in FIG. 14 is shown enlarged in FIG. 16.
  • the kingpin 21 has a groove 28 into which a lifting device 29, which preferably consists of a split ring, is inserted. This prevents the receiving frame 22 from slipping up from the kingpin 21.
  • the gimbal 26 of the receiving frame 22 on the Auf ⁇ receiving element 23 is clear.
  • FIG. 17 shows an exploded isometric view of a rotary joint 10 according to the invention, which is closed off at the top by a closure plate 30.
  • the runway 17 is received by an annular centering 31 and that lifting of the nacelle 1 according to the invention is prevented by an additional redundant lift-off protection 32, which is received in a receptacle 33 and engages in a counterpart 35.
  • a jacket plate 34 is present.
  • the structure of a wind turbine according to the invention can consist of a tower 11, a rotary joint 10 according to the invention and a nacelle 1 according to the invention.
  • the components according to the invention can be designed accordingly Construction of the wind turbine according to the invention from a tower 11, a conventional rotary joint (eg Kugelfitverbin ⁇ tion) and a gondola 1 according to the invention or from a tower 11, a rotary joint 10 according to the invention and a conventional gondola (eg gondola cast) can exist.
  • the components according to the invention which are distinguished by advantageous load reduction by rod and point loads, can thus be produced globally for all types of wind turbine and can be used globally.
  • Planning of a wind energy plant is possible by means of an SD-CAD model, which is characterized by its parametric variability.
  • SD-CAD software allows the creation of "intelligent models” d. H. a “geomet ⁇ technik programming” of components and assemblies.
  • SD-CAD geometries There are also special software packages for converting SD-CAD geometries between the individual systems.
  • the customer benefit of the present proposal consists in making the know-how resulting from the intelligently designed design directly usable for one's own products. All engineering knowledge and related tests on the virtual prototype are programmed into the design.
  • the sole task for the customer's development teams is to adapt the "blank” (ie the acquired rights to use the 3D CAD dataset and the dataset itself), which is advantageously feasible by a one-time engineering service, to its own main wind turbine components.
  • Detailed tests on the basis of the customer-specific virtual prototypes thus produced ie the 3D assembly equipped with customer components in 3D CAD) are already created within the "blank" and can be used directly with knowledge of the software operation be carried out by the customer.
  • the rotary joint 10 according to the invention and / or the nacelle 1 according to the invention have components which are easy to manufacture and / or replace, they can be inexpensively replaced, for example, within fixed exchange intervals in order to minimize downtimes of the wind energy plant according to the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Wind Motors (AREA)

Abstract

L'invention concerne une nacelle pour une installation à énergie éolienne, un joint tournant pour une installation à énergie éolienne, une installation à énergie éolienne, et un procédé pour faire fonctionner une installation à énergie éolienne. A cet effet, l'on utilise des composants universels qui peuvent facilement être remplacés, indépendamment du type d'installation à énergie éolienne, et/ou qui peuvent facilement être produits en tout lieu, de manière à pouvoir, par exemple, être remplacés de façon peu onéreuse dans des intervalles de remplacement établis, pour réduire au maximum les durées d'immobilisation de l'installation à énergie éolienne selon l'invention. Cette fiabilité technique accrue permet d'optimaliser le rendement de ladite installation à énergie éolienne.
EP05798006A 2004-09-21 2005-09-06 Nacelle pour installation a energie eolienne, joint tournant pour installation a energie eolienne, installation a energie eolienne, et procede pour faire fonctionner une installation a energie eolienne Withdrawn EP1794447A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102004046029 2004-09-21
DE102004062360 2004-12-10
DE102005018290 2005-04-18
PCT/DE2005/001555 WO2006032237A2 (fr) 2004-09-21 2005-09-06 Nacelle pour installation a energie eolienne, joint tournant pour installation a energie eolienne, installation a energie eolienne, et procede pour faire fonctionner une installation a energie eolienne

Publications (1)

Publication Number Publication Date
EP1794447A2 true EP1794447A2 (fr) 2007-06-13

Family

ID=35539359

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05798006A Withdrawn EP1794447A2 (fr) 2004-09-21 2005-09-06 Nacelle pour installation a energie eolienne, joint tournant pour installation a energie eolienne, installation a energie eolienne, et procede pour faire fonctionner une installation a energie eolienne

Country Status (4)

Country Link
US (1) US20080069684A1 (fr)
EP (1) EP1794447A2 (fr)
DE (1) DE112005002923A5 (fr)
WO (1) WO2006032237A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7608939B2 (en) * 2007-01-04 2009-10-27 General Electric Company Methods and apparatus for assembling and operating monocoque rotary machines
US8182234B2 (en) * 2008-07-09 2012-05-22 General Electric Company Spaceframe wind turbine energy converter structure
US20100232977A1 (en) * 2009-03-13 2010-09-16 Vestas Wind Systems A/S Height Adjustable Wind Turbine Nacelle
EP2375066B1 (fr) 2010-04-06 2016-06-01 Siemens Aktiengesellschaft Auvent pour nacelle d'éolienne
CN113806852B (zh) * 2021-11-22 2022-02-22 中交天津港湾工程研究院有限公司 一种深水薄壁钢圆筒稳定性预测方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR578714A (fr) * 1924-02-07 1924-10-02 Accouplement direct de turbines aériennes et de génératrices électriques
GB2052006B (en) * 1979-04-30 1983-01-19 Taylor Woodrow Const Ltd Bearing and driving assembly
DE3629872A1 (de) * 1986-09-02 1988-03-10 Licentia Gmbh Windkraftanlage zur erzeugung elektrischer energie
DE3725972C2 (de) * 1987-08-05 1998-09-10 Schaeffler Waelzlager Ohg Wälzlager-Drehverbindung
DK173530B2 (da) * 1999-11-17 2005-07-18 Siemens Wind Power As Fremgangsmåde til montering af hovedkomponenter i kabine på vindmölle og en sådan kabine til vindmölle
DE50008902D1 (de) * 2000-03-17 2005-01-13 Gen Electric Offshore-Windkraftanlage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006032237A2 *

Also Published As

Publication number Publication date
US20080069684A1 (en) 2008-03-20
WO2006032237A3 (fr) 2006-07-27
WO2006032237A2 (fr) 2006-03-30
DE112005002923A5 (de) 2007-09-06

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