• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a nacelle (2) for a wind turbine (1), the nacelle (2) comprising: - a nacelle housing (4); - a rotor hub (6); - A rotor bearing (8) for mounting the rotor hub (6) on the nacelle housing (4), the rotor bearing (8) having at least one inner ring element (12) and at least one outer ring element (13), with between the inner ring element (12) and at least one oil-lubricated slide bearing element (14) is formed on the outer ring element (13). A sealing element (24) is formed between the nacelle housing (4) and the rotor hub (6) and / or between the nacelle housing (4) and a rotor shaft (15).
    公开号:AT521953A4
    申请号:T51113/2018
    申请日:2018-12-13
    公开日:2020-07-15
    发明作者:Johannes Hölzl Dr
    申请人:Miba Gleitlager Austria Gmbh；
    IPC主号:
    专利说明:

    Gondola equipped wind turbine.
    A rotor bearing for a nacelle of a wind power plant is known from EP2863076A1. The rotor bearing known from EP2863076A1 has only one
    low energy efficiency.
    The object of the present invention was to overcome the disadvantages of the prior art and to improve a nacelle for a wind turbine
    To create energy efficiency.
    This task is performed by a gondola and a wind turbine in accordance with the
    sayings resolved.
    According to the invention, a nacelle is provided for a wind turbine. The gondola includes:
    - a pod housing;
    - a rotor hub;
    - A rotor bearing for mounting the rotor hub on the nacelle housing, the rotor bearing having at least one inner ring element and at least one outer ring element, at least one oil-lubricated slide bearing element being formed between the inner ring element and the outer ring element. A sealing element is formed between the nacelle housing and the rotor hub and / or between the nacelle housing and a rotor shaft. The sealing element is designed to seal a lubricating oil sump, the lubricating oil sump serving to receive the lubricating oil which is used to lubricate the oil-lubricated slide bearing element.
    N2018 / 19300-AT-00
    Rotor storage enabled.
    Furthermore, it may be expedient if the sealing element is designed as an axial seal, which is between an end face of the nacelle housing and a
    Front side of the rotor hub is arranged.
    In an alternative it can be provided that the sealing element is designed as a radial seal which is arranged between the nacelle housing and the rotor hub and / or between the nacelle housing and the rotor shaft
    is.
    In addition, it can be provided that the sealing element is designed as a mechanical seal. A mechanical seal in particular can be a good one
    Sealing effect for sealing the nacelle can be achieved.
    Also advantageous is a configuration according to which it can be provided that the sealing element comprises at least two segments which can be put over the rotor shaft in the radial direction. This has the advantage that the sealing element can be easily replaced without having to remove the rotor shaft. This simplification in the maintenance of the rotor shaft can be achieved in particular in that the sealing element is not completely closed, but rather has a segmented structure, and thus
    can be opened so that it can be placed radially over the shaft.
    According to a further development, it is possible for the sealing element to be designed as a labyrinth seal. A labyrinth seal in particular can have a long service life in the present application and, especially if the sealing element is not immersed in the lubricating oil sump, a
    have appropriate sealing effect.
    It may also be useful if the labyrinth seal has a return
    has, which leads into a lubricating oil sump. Through this measure, a
    N2018 / 19300-AT-00
    outer wall on the labyrinth further away from the lubricating oil sump.
    In addition, it can be provided that the sealing element is accommodated in the nacelle housing and the rotor hub can be rotated relative to the sealing element. In particular, a seal designed in this way or the installation situation of the seal designed in this way leads to the lowest possible wear of the sealing element. This can increase the longevity of the sealing element
    become.
    Furthermore, it can be provided that the sealing element contacts a sealing surface which can be moved relative to the sealing element, the sealing surface having a sliding lacquer coating. Especially with such a structure of the
    Sealing element, the longevity of the wind turbine can be increased.
    According to a special embodiment, it is possible for a sliding sleeve to be arranged on the rotor hub or on the rotor shaft and which cooperates with the sealing element. Especially when using a sliding sleeve, the long
    Life of the sealing element can be increased.
    According to an advantageous development, it can be provided that an oil drip element is formed on the rotor shaft in the form of an injection molding or an elevation. These measures can ensure that the
    Sealing effect of the sealing element can be improved.
    In particular, it can be advantageous if two sealing elements are formed axially spaced apart from one another. Thus, in the axial direction of the axis of rotation, the lubricating oil sump can be sealed in both directions,
    to prevent lubricating oil from escaping from the nacelle on one side and
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    Bind oil sump.
    It can further be provided that between the nacelle housing and the rotor hub and / or between the nacelle housing and a rotor shaft.
    tion element is formed.
    The sealing surface preferably comprises a material which is selected from a group comprising aluminum-based alloys, bismuth-based alloys, silver-based alloys, sliding varnishes. In particular, these wear-resistant and tribologically particularly effective materials have proven to be particularly advantageous in wind power plants with a high power density. Surprisingly, sliding varnishes in particular can be used well as a sliding layer, although they have a Vickers hardness of approx. 25 HV (0.001) to 60 HV (0.001), that is to say they are significantly softer than the sliding layers described above, here one
    It is possible to increase the hardness by adding appropriate hard particles.
    There is also the possibility that a polymer-based running-in layer is arranged on the sealing surface in order to allow the sealing surface to adapt better to the sealing element during the running-in of the sealing element.
    to achieve mentes.
    For example, polytetrafluoroethylene, fluorine-containing resins such as e.g. Perfluoroalkoxy copolymers, polyfluoroalkoxy-polytetrafluoroethylene copolymers, ethylene-tetrafluoroethylene, polychlorotrifluoroethylene, fluorinated ethylene-propylene copolymers, polyvinyl fluoride, polyvinylidene fluoride, alternating copolymers, statistical copolymers, such as e.g. Perfluoroethylene propylene, polyester imides, bismaleimides, polyimide resins such as e.g. Carboranimides, aromatic polyimide resins, hydrogen-free polyimide resins, poly-triazo-pyromellithimides, polyamideimides, in particular aromatic, polyaryletherimides, optionally modified with isocyanates, polyetherimides, optionally modified with isocyanates, epoxy resins, epoxy resin esters, phenolic resins, polyamide 6, polyamide 6, polyamide 6, polyamide 6, polyamide 6, , Polyaryl ketones, polyaryl ether ketones, polya-
    N2018 / 19300-AT-00
    phones, polyarylsulfones, polyaryloxides, polyarylsulfides, and copolymers thereof.
    A pressure increasing device in the sense of this document is a device which is designed to increase the pressure of the lubricating oil by external energy supply. Such a pressure increasing device is for example
    as a hydraulic pump.
    For the purposes of this document, a gondola includes a gondola housing
    also a rotor hub and a rotor bearing to support the rotor hub.
    The inner ring element or the outer ring element can each be designed as independent components which can be coupled to the rotor hub or rotor shaft or to the nacelle housing. Alternatively, it is also conceivable that the inner ring element is designed as an integral part of the rotor hub or the rotor shaft. Alternatively, it is also conceivable that the outer ring element is designed as an integral part of the rotor hub or the rotor shaft. Alternatively, it is also conceivable that the inner ring element is designed as an integral part of the nacelle housing. Alternatively, it is also conceivable that the outer ring element as an integral part of the
    Gondola housing is formed.
    For a better understanding of the invention, this is based on the following
    Figures explained in more detail.
    Each show in a highly simplified, schematic representation:
    Figure 1 is a schematic representation of a wind turbine. 2 shows a cross section of a gondola in a highly schematic representation; 3 shows a cross section of the nacelle with a flow channel in the outer ring element;
    N2018 / 19300-AT-00
    Fig. 5 is a cross section of a gondola with a divided gondola housing in one
    highly schematic representation;
    Fig. 6 shows an embodiment of a slip ring seal on a sleeve
    trained sliding surface; Fig. 7 shows an embodiment of a labyrinth seal with an oil drain.
    In the introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, the disclosures contained in the entire description being able to be applied analogously to the same parts with the same reference numerals or the same component names. The location information selected in the description, e.g. above, below, laterally, etc. related to the figure described and illustrated immediately and are these
    to transfer information in the event of a change of position to the new position.
    Fig. 1 shows a schematic representation of a wind turbine 1 for generating electrical energy from wind energy. The wind turbine 1 comprises a nacelle 2 which is rotatably received on a tower 3. The nacelle 2 comprises a nacelle housing 4, which forms the main structure of the nacelle 2. The electrotechnical components are like in the nacelle housing 4 of the nacelle 2
    about a generator of the wind turbine 1 is arranged.
    Furthermore, a rotor 5 is formed, which has a rotor hub 6 with rotor blades 7 arranged thereon. The rotor hub 6 is seen as part of the nacelle 2. The rotor hub 6 can be rotated on the nacelle by means of a rotor bearing 8
    housing 4 added.
    The rotor bearing 8, which serves to support the rotor hub 6 on the nacelle housing 4 of the nacelle 2, is designed to absorb a radial force 9, an axial force 10 and a tilting moment 11. The axial force 10 is due to the force of the wind. The radial force 9 is caused by the weight of the rotor 5
    N2018 / 19300-AT-00
    caused by an uneven load on the rotor blades 7.
    The rotor bearing 8 according to the invention can for example have a diameter between 0.5 m and 5 m. Of course, it is also conceivable that the rotor
    storage 8 is smaller or larger.
    2 shows the nacelle housing 4 and the rotor hub 6 in a schematic sectional illustration, the structure, in particular in its dimensioning, being highly schematic. As can be seen from FIG. 2, it can be provided that the rotor bearing 8 has at least one inner ring element 12 and at least one outer ring element 13. At least one slide bearing element 14 is arranged between the inner ring element 12 and the outer ring element 13.
    arranges.
    As can be seen from FIG. 2, it can be provided that the inner ring element 12 is coupled to the rotor hub 6. In particular, it can be provided that a rotor shaft 15 is formed, on which the rotor hub 6 is arranged. This in-
    Nere ring element 12 can be received directly on the rotor shaft 15.
    In a further exemplary embodiment, not shown, it can of course also be provided that the inner ring element 12 bears directly on the rotor hub 6.
    is taken.
    In yet another exemplary embodiment, which is not shown, it can of course also be provided that the inner ring element 12 is attached to the nacelle housing 4 and that the rotor hub 6 is coupled to the outer ring element 13
    is.
    As can be seen from FIG. 2, it can be provided that both the inner ring element 12 and the outer ring element 13 are V-shaped and two slide bearing elements 14 are formed on the V-shaped flank between the two ring elements 12, 13 and are axially spaced apart from one another are which in
    N2018 / 19300-AT-00
    be.
    As can also be seen from FIG. 2, it can be provided that the inner ring element 12 is divided around its axial extension
    To facilitate assembly of the rotor bearing 8.
    In an exemplary embodiment that is not shown, it is of course also conceivable that the inner ring element 12 does not form a groove as in the exemplary embodiment shown in FIG. 2, but the V-shaped arrangement is designed in reverse, so that a V-shaped projection is formed on the inner ring element 12 is. In this case, for easier assembly, it can be provided that the external
    Reren ring element 13 is divided into its axial extent.
    Both in the case of an embodiment with an inner ring element 12 divided in the axial extent, and in an embodiment with the outer ring element 13 divided in the axial extent, it can be provided that the individual parts of the respectively divided annular element 12, 13 are designed to be axially adjustable relative to one another, for example by the To be able to compensate for wear of the slide bearing elements 14. In particular, it can be provided that the bearing gap is adjusted relative to one another by the axial adjustability of the individual parts of the ring elements 12, 13.
    that can.
    As can also be seen from FIG. 2, it is provided that a lubricating oil sump 18 is formed which serves to receive lubricating oil 19. In the operating state, the lubricating oil sump 18 is filled with lubricating oil 19 up to a lubricating oil level 20. The lubricating oil level 20 is selected so that the sliding surfaces 17 are at least in sections below the lubricating oil level 20 and thus in
    immerse the lubricating oil 19 in the lubricating oil sump 18.
    N2018 / 19300-AT-00
    Slide bearing element 14 is used.
    To supply lubricating oil 19 to the sliding surface 17, it can be provided that lubricating oil bores 22 are formed in the inner ring element 12 or in the outer ring element 13, which, depending on the rotational position of the rotor hub 6, open into the lubricating oil sump 18 at a first longitudinal end and into the second longitudinal end thereof open a space between the inner ring member 12 and the outer ring member 13. This measure ensures that sufficient lubricating oil 19 is supplied to the slide bearing element 14
    that can.
    Furthermore, lubricating oil bores 23 can also be provided, which open directly into the sliding surface 17. By means of these lubricating oil bores 23, the sliding surface 17 can be in direct flow connection with the lubricating oil sump 18, so that sufficient lubricating oil 19 can be supplied to the sliding surface 17. In particular, it can be provided that lubricating oil 19 is sucked into the sliding surface 17 via the lubricating oil bore 23 or the lubricating oil bore 22 by the movement of the sliding bearing element 14 relative to the outer ring element 13, and a lubricating oil film for lubricating or for mounting the sliding bearing element 14 is located there.
    is built.
    In order to achieve a good lubricating effect of the sliding bearing element 14, it can be provided that, as shown in FIG. 2, at least a portion of the sliding surface 17 seen across its width, entirely below the lubricating oil level 20
    lies.
    It can further be provided that a sealing element 24 is formed, which serves to seal the rotor hub 6 to the nacelle housing 4. As can be seen from FIG. 2, it can be provided that the sealing element 24 between a
    Face 25 of the nacelle housing 4 and between a face 26 of the Ro-
    N2018 / 19300-AT-00
    Goal hub 6 works. In particular, it can be provided that the lubricating oil sump 18 extends both over the nacelle housing 4 and over the rotor hub 6 and thus the sealing element 24 in sections below the
    Lubricating oil level 20.
    As can also be seen from FIG. 2, it can be provided that the sealing element
    element 24 is accommodated in the nacelle housing 4.
    FIG. 3 shows a further and possibly independent embodiment of the nacelle 2, again using the same reference numerals or component designations for the same parts as in the previous FIGS. 1 to 2. In order to avoid unnecessary repetitions, reference is made to the detailed description in the preceding FIGS. 1 to 2 or
    Referred.
    As can be seen from FIG. 3, it can be provided that a flow channel 27 is formed in the outer ring element 13, which is flow-connected to the lubricating oil bores 23 and serves for better distribution of lubricating oil 19 in the sliding surface 17.
    FIG. 4 shows a sectional view along the section line IV — IV from FIG. 3. As can be seen from FIG. 4, it can be provided that the flow channel 27 extends over a flow channel angle 28, which is preferably selected such that the flow channel 27 is arranged entirely below the lubricating oil level 20. In particular, it can be provided that the flow channel angle
    28 is between 10 ° and 160 °, preferably between 45 ° and 80 °.
    Furthermore, it is provided that a flow channel width 29 is selected such that it is smaller than a width 30 of the slide bearing element 14. As can be seen from FIG. 4, it can be provided that several of the lubricating oil bores 23 open into the flow channel 27. It can further be provided that the flow channel 27 runs out in the form of a wedge gap 31. Through this measure, a
    Lubricant film are built up.
    N2018 / 19300-AT-00
    In a first exemplary embodiment it can be provided that the flow
    channel 27 runs out in the circumferential direction on both sides in the form of a wedge gap 31.
    In a further exemplary embodiment, it can be provided that, seen in the main direction of rotation 32, the wedge gap 31 extends only at the end of the flow channel 27.
    is formed.
    As can also be seen from FIG. 4, it can be provided that the slide bearing element 14 has a plurality of slide bearing pads 33 which are arranged on the inner ring element 12 and are distributed over the circumference. The sliding bearing pads 33 can in particular be arranged on the inner ring element 12 in such a way that a continuous sliding surface 17 is formed which can act as a hydrodynamic bearing. In particular, it can be provided that the sliding surface 17 has the shape of a key.
    has gel blunt.
    FIG. 5 shows a further and possibly independent embodiment of the nacelle 2, again using the same reference numerals or component designations for the same parts as in the previous FIGS. 1 to 4. In order to avoid unnecessary repetitions, reference is made to the detailed description in the preceding FIGS. 1 to 4 or
    Referred.
    As can be seen from FIG. 5, it can be provided that the lubricating oil sump 18 is entirely formed in the nacelle housing 4. In particular, it can be provided here that the sealing elements 24, in particular their sealing surface 34, lie entirely above the lubricating oil level 20. In order to enable or simplify the assembly or maintenance of a nacelle housing 4 or rotor bearing 8 constructed in this way, it can be provided that the nacelle housing 4 has a main housing part 35 and a lubricating oil sump cover 36. In particular, it can be provided that the main housing part 35 and the lubricating oil sump cover 36 delimit the lubricating oil sump 18. It can be provided here that the lubricating oil sump cover 36 by means of a fastening element 37
    is attached to the main housing part 35.
    N2018 / 19300-AT-00
    As can be seen from FIG. 5, it can be provided that, viewed in the axial direction of the rotor axis 21, a sealing element 24 is arranged on both sides of the lubricating oil sump 18. In particular, it can be provided that the sealing elements 24 are designed as a radial direction. One of the sealing elements 24 can be arranged in the main housing part 35, the second one
    Sealing elements 24 can be arranged in the lubricating oil sump cover 36.
    Furthermore, it can be provided that the sealing elements 24 interact with the rotor shaft 15. In particular, it can be provided that the sliding surface 17 is formed on the rotor shaft 15. In particular, it can be provided that the rotor shaft 15 locally has a specially designed surface for this purpose, which is formed, for example, by a lubricating lacquer coating. Such a sliding lacquer coating can be used in particular when using
    Slip ring seals can be provided.
    Furthermore, it can be provided that an oil drip element 38 is formed on the rotor shaft 15, which serves to ensure that the lubricating oil 19 does not reach the sealing element 24 along the rotor shaft 15 in the axial direction. The oil draining element 38 can be designed, for example, in the form of an insertion groove. In an alternative embodiment variant it can also be provided that the oil drip element 38, for example in the form of a circumferential elevation on the rotor
    shaft 15 is formed.
    6 shows a detailed view of a further exemplary embodiment of the arrangement of the sealing element 24. As can be seen from FIG. 6, it can be provided that a sliding sleeve 39 is arranged on the rotor shaft 15, on which sliding sleeve 39 the sealing surface 34 is formed. Such an arrangement can in particular
    be particularly useful when using slip ring seals.
    In a further exemplary embodiment, not shown, it can also be provided that the sliding sleeve 39 is received directly on the rotor hub 6 and that
    Sealing element 24 thus serves to seal the rotor hub 6.
    N2018 / 19300-AT-00
    FIG. 7 shows a further exemplary embodiment of the sealing element 24. As can be seen from FIG. 7, it can be provided that the sealing element 24 is designed in the form of a labyrinth seal which interacts, for example, with the lubricating oil sump cover 36. In particular, it can be provided that a return 40 is formed, which serves to return lubricating oil 19 into the lubricating oil sump 18. The return can, as can be seen in FIG. 7, be designed in the form of a bore which runs from the lowest point of the labyrinth seal
    leads into the lubricating oil sump 18.
    The exemplary embodiments show possible design variants, it being noted at this point that the invention is not restricted to the specially illustrated design variants of the same, but rather also various combinations of the individual design variants with one another are possible and this variation possibility is based on the teaching of technical action through the present invention Can do that in this technical field
    Expert lies.
    The scope of protection is determined by the claims. However, the description and drawings are to be used to interpret the claims. Individual features or combinations of features from the different exemplary embodiments shown and described can represent independent inventive solutions. The independent inventive solutions
    basic task can be found in the description.
    All information on value ranges in the objective description should be understood to include any and all sub-areas, e.g. the information 1 to 10 is to be understood in such a way that all sub-areas, starting from the lower limit 1 and the upper limit 10, are included, i.e. all sections start with a lower limit of 1 or greater and end with an upper limit of 10 or less, e.g. 1 to 1.7, or 3.2 to 8.1, or 5.5 to 10.
    N2018 / 19300-AT-00
    For the sake of order, it should finally be pointed out that, for a better understanding of the structure, elements are sometimes to scale and / or enlarged
    and / or were scaled down.
    N2018 / 19300-AT-00
    23 24 25 26 27 28 29
    Wind turbine gondola
    Tower nacelle housing rotor rotor hub rotor blade rotor bearing radial force axial force
    Overturning moment
    15
    Reference list
    30 Wide plain bearing element 31 Wedge gap
    32 Main direction of rotation
    33 plain bearing pad
    34 sealing surface
    35 main body
    36 Lube oil sump cover 37 Fastening element 38 Oil drip element
    39 sliding sleeve
    40 return
    inner ring element
    outer ring element
    Slide bearing element rotor shaft Fastening center! L Slide surface Lube oil sump Lube oil Lube oil level Rotor axis Lube oil hole ment Lube oil hole
    Sealing element
    Stripes
    Front side of the nacelle housing
    Front side of the rotor hub
    Flow channel
    Flow channel angle
    Flow channel width
    N2018 / 19300-AT-00
    权利要求:
    Claims (13)
    [1]
    1. gondola (2) for a wind turbine (1), the gondola (2) comprising:
    - A nacelle housing (4);
    - a rotor hub (6);
    - A rotor bearing (8) for mounting the rotor hub (6) on the nacelle housing (4), the rotor bearing (8) having at least one inner ring element (12) and at least one outer ring element (13), with between the inner ring element (12) and at least one oil-lubricated slide bearing element (14) is formed on the outer ring element (13),
    characterized in that between the nacelle housing (4) and the rotor hub (6) and / or between the nacelle housing (4) and a rotor shaft (15)
    a sealing element (24) is formed.
    [2]
    2. nacelle (2) according to claim 1, characterized in that the sealing element (24) is designed as an axial seal, which between an end face (25) of the nacelle housing (4) and an end face (26) of the rotor hub (6) on
    is ordered.
    [3]
    3. nacelle (2) according to claim 1, characterized in that the sealing element (24) is designed as a radial seal, which between the nacelle housing (4) and the rotor hub (6) and / or between the nacelle housing (4)
    and the rotor shaft (15) is arranged.
    [4]
    4. nacelle (2) according to any one of the preceding claims, characterized in that the sealing element (24) is designed as a mechanical seal
    is.
    [5]
    5. nacelle (2) according to any one of the preceding claims, characterized in that the sealing element (24) around at least two segments
    summarizes which can be placed in the radial direction over the rotor shaft (15).
    N2018 / 19300-AT-00
    [6]
    6. nacelle (2) according to one of claims 1 to 3, characterized in
    net that the sealing element (24) is designed as a labyrinth seal.
    [7]
    7. nacelle (2) according to claim 6, characterized in that the labyrinth seal has a return (40) which leads into a lubricating oil sump (18).
    [8]
    8. nacelle (2) according to any one of the preceding claims, characterized in that the sealing element (24) in the nacelle housing (4) received
    men and the rotor hub (6) is rotatable relative to the sealing element (24).
    [9]
    9. nacelle (2) according to any one of the preceding claims, characterized in that the sealing element (24) contacts a sealing surface (34) which is movable relative to the sealing element (24), the sealing surface (34)
    has a slide coating.
    [10]
    10. nacelle (2) according to any one of the preceding claims, characterized in that on the rotor hub (6) or on the rotor shaft (15) a sliding
    sleeve (39) is arranged, which cooperates with the sealing element (24).
    [11]
    11. nacelle (2) according to any one of the preceding claims, characterized in that on the rotor shaft (15) an oil drip element (38) in the form of a
    Einstechnut or a survey is trained.
    [12]
    12. nacelle (2) according to any one of the preceding claims, characterized in that axially spaced two sealing elements (24)
    are trained.
    [13]
    13. Wind power plant (1) with a nacelle (2), the nacelle (2) comprising: - a nacelle housing (4);
    - A rotor hub (6) with rotor blades arranged thereon;
    N2018 / 19300-AT-00
    - A rotor bearing (8) for mounting the rotor hub (6) in the nacelle housing (4), the rotor bearing (8) having at least one inner ring element (12) and at least one outer ring element (13), with between the inner ring element (12) and at least one oil-lubricated slide bearing element (14) is formed on the outer ring element (13),
    characterized in that between the nacelle housing (4) and the rotor hub (6) and / or between the nacelle housing (4) and a rotor
    shaft (15) a sealing element (24) is formed.
    N2018 / 19300-AT-00
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    同族专利:
    公开号 | 公开日
    WO2020118333A1|2020-06-18|
    EP3894716A1|2021-10-20|
    JP2022510477A|2022-01-26|
    CN113039370A|2021-06-25|
    AT521953B1|2020-07-15|
    US20220010784A1|2022-01-13|
    BR112021008029A2|2021-07-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP2863076A1|2012-06-19|2015-04-22|Fuji Electric Co., Ltd.|Composite sliding bearing and wind-powered electricity generation device using this bearing|
    DE102012212792A1|2012-07-20|2014-01-23|Schaeffler Technologies AG & Co. KG|Bearing arrangement for direct drive wind turbine, has generator with stator, rotor, and interposed roller bearing that is sealed by contactless seal e.g. labyrinth seal or multi-stage labyrinth, and sealing gap formed between seal elements|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA51113/2018A|AT521953B1|2018-12-13|2018-12-13|Gondola for a wind turbine|ATA51113/2018A| AT521953B1|2018-12-13|2018-12-13|Gondola for a wind turbine|
    US17/295,183| US20220010784A1|2018-12-13|2019-12-09|Nacelle for a wind turbine|
    JP2021532438A| JP2022510477A|2018-12-13|2019-12-09|Nacelle for wind power generator|
    CN201980075851.3A| CN113039370A|2018-12-13|2019-12-09|Nacelle for a wind power plant|
    PCT/AT2019/060425| WO2020118333A1|2018-12-13|2019-12-09|Nacelle for a wind turbine|
    BR112021008029-5A| BR112021008029A2|2018-12-13|2019-12-09|wind energy installation and gondola for a wind energy installation|
    EP19835589.3A| EP3894716A1|2018-12-13|2019-12-09|Nacelle for a wind turbine|
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