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1.发明公开
公开(公告)号：EP3907062A1
公开(公告)日：2021-11-10
申请号：EP20173490.2
申请日：2020-05-07
发明人： Henrichsen, Soeren Randrup Daugaard , Hurup, Allan , Joergensen, Jens Grandjean , Nielsen, Mogens
IPC分类号： B29C65/48 , B29C65/52 , B29C65/54 , B29C65/50 , B29C65/00 , B29C65/78 , F03D1/06 , B29D99/00 , B29L31/08
摘要： A method for manufacturing a wind turbine blade (3), comprising the steps:
a) arranging (S3, S6) a first pre-casted blade segment (8) adjacent to a second pre-casted blade segment (9),
b) arranging (S7) a fiber lay-up (30) in a connection region (23) between the first pre-casted blade segment (8) and the second pre-casted blade segment (9),
c) covering (S8) the connection region (23) with a vacuum cover (31),
d) applying (S9) vacuum to a space (33) covered by the vacuum cover (31), and
e) infusing (S10) the connection region (23) with a resin, and curing the resin.
Manufacturing the wind turbine blade by connecting pre-casted segments with each other by means of vacuum-assisted infusion of resin of added fibers and curing the resin simplifies the manufacturing process. This is in particular the case for very large blades.-
公开(公告)号：EP4209317A1
公开(公告)日：2023-07-12
申请号：EP22150504.3
申请日：2022-01-07
摘要： Vacuum lifting device comprising at least one three-dimensional suction cup section (4) defining an inner suction volume (10) and at least one flat surface cover (5), wherein the surface cover (5) is adapted to cover a portion of a surface (8) of a lifted object (7) in a cover area (44) surrounding the suction cup section (4), wherein the surface cover (5) extends from an edge (13) of the suction cup section (4) around the suction cup section (4).
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公开(公告)号：EP3854560A1
公开(公告)日：2021-07-28
申请号：EP20153875.8
申请日：2020-01-27
发明人： Bernhammer, Lars Oliver , Girschig, Florian , Joergensen, Jens Grandjean , Nielsen, Mogens , Pawar, Ashish
摘要： Method for fabricating a wind turbine blade shell, wherein the wind turbine blade shell is fabricated in a casting process using a mould (1) and a plurality of shell components (6), comprising the steps:
- providing the mould (1) and the plurality of shell components (6),
- providing at least one alignment mark (3) at the mould (1) and/or at one or more shell components (6) placed in the mould,
- providing at least one marking means at the position of the at least one alignment mark (3),
- arranging the or further shell components in the mould and casting the wind turbine blade shell.-
公开(公告)号：EP4454870A1
公开(公告)日：2024-10-30
申请号：EP23170565.8
申请日：2023-04-28
IPC分类号： B29C70/54 , B29C53/04 , B29D99/00 , B29B11/16 , F03D1/06 , B64C27/473 , B29C70/28 , B29C70/30 , B29C70/56 , B29C70/88 , B29C70/02 , B29L31/08
摘要： Method for arranging at least one blade building preform element (7) in a blade mold (8) for further processing, comprising the steps:
a) placing the at least one preform element (7) on a mold surface of the blade mold (8),
b) placing at least one further preform element (26) and/or at least one blade component and/or at least one manufacturing tool (10) on the mold surface and/or on the at least one preform element (7) by moving it in a moving direction along a moving path (12), and
c) bending at least one part of at least one bending section (9) of the at least one preform element (7) such that the at least one bending section (9) at least partially overlaps the at least one further preform element (26) and/or the at least one blade component and/or at least one manufacturing tool (10) such that the at least one bending section (9) blocks a reverse movement of the at least one further preform element (26) and/or the at least one blade component and/or at least one manufacturing tool (10) in the reverse direction along the moving path (12).-
公开(公告)号：EP4008894A1
公开(公告)日：2022-06-08
申请号：EP20211210.8
申请日：2020-12-02
发明人： Burchardt, Claus , Henrichsen, Soeren Randrup Daugaard , Hurup, Allan , Joergensen, Jens Grandjean , Nielsen, Mogens
IPC分类号： F03D1/06
摘要： A wind turbine rotor blade (5) comprised by an inboard part (6) and an outboard part (7) transversely divided. The inboard part (6) has a circular attachment with a cross-section (A-A) in the root (8) to be connected to a hub (4). The inboard part (6) extends in the longitudinal direction of the blade (5) between the circular cross-section (A-A) and the cross-section (B-B), having the inboard part a single curved geometry.
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6.发明公开
公开(公告)号：EP3744494A1
公开(公告)日：2020-12-02
申请号：EP19176914.0
申请日：2019-05-28
摘要： A mold (1) for manufacturing a wind turbine blade (6), comprising: a lower mold component (2), and an upper mold component (4), wherein the lower mold component (2) and the upper mold component (4) form a mold cavity (5) in the shape of a wind turbine blade (6), and the upper mold component (4) comprises at least two upper mold parts (7).
The required floor-to-ceiling height of a production hall is decreased and the required lifting capacity of a crane is lowered.-
公开(公告)号：EP4257321A1
公开(公告)日：2023-10-11
申请号：EP22167133.2
申请日：2022-04-07
摘要： Method for manufacturing a preform building element used for building a wind turbine rotor blade, wherein the preform building element is manufactured from one or more fiber mat components (11) and at least one further component (12), wherein the further component (12) is arranged on a molding surface (3) of a mold (2), wherein one or more fiber mat components (11) are arranged one after the other on the further component (12) and/or on previously arranged fiber mat components (11), wherein the or each fiber mat component (11) is laid out at least sectionally on the respective directly subjacent component with a moving boundary (14) of a contact area (13), at which the laid out fiber mat (11) comes into contact with the subjacent component, wherein during laying out of the or each fiber mat component (11),
- a binding agent is applied at least sectionally to the boundary (14) and/or
- a binding agent supplied in the laid-out fiber mat component (11) and/or in the subjacent component is activated at least sectionally at and/or behind the boundary (14),
wherein the applied binding agent and/or the activated supplied binding agent adheres the laid-out fiber mat component (11) to the subjacent component.-
公开(公告)号：EP4191052A1
公开(公告)日：2023-06-07
申请号：EP21211701.4
申请日：2021-12-01
IPC分类号： F03D1/06
摘要： A wind turbine blade (3), comprising two planks (8, 9) joined with each other in a longitudinal direction (L1) of the planks (8, 9) at joining surfaces (12, 13) by a butt joint (14), wherein
each plank (8, 9) comprises a main portion (18, 20) with a wedge-shaped recess (19, 21) and a wedge-shaped portion (15, 16) filling the recess,
each wedge-shaped portion (15, 16) has a respective one of the joining surfaces (12, 13) and is tapered from its joining surface (12, 13) in a direction (D1, D2) away from its joining surface (12, 13), and
a stiffness of a material of the wedge-shaped portions (15, 16) is smaller than a stiffness of a material of the main portions (18, 20).
By having the wedge-shaped portions, the load is transferred to the surrounding material over a larger area which reduces the stress concentration.-
9.发明公开
公开(公告)号：EP3670897A1
公开(公告)日：2020-06-24
申请号：EP18215103.5
申请日：2018-12-21
摘要： A wind turbine blade (3) having a lengthwise and a chordwise direction (14), the wind turbine blade (3) comprising:
a first blade element (22) extending in the lengthwise direction (21) and having a first airfoil (46, 46') in the chordwise direction (14), and
a second blade element (23) extending in the lengthwise direction (21) and having a second airfoil (47, 47') in the chordwise direction (14),
wherein the first and second airfoils (46, 46', 47, 47') are arranged besides each other when seen in the lengthwise direction (21).
By having the wind turbine blade comprising the first and second blade elements, the blade can be manufactured by manufacturing the first blade element and the second blade element separately. Thus, larger wind turbine blades can be manufactured by using conventional production setups having limited production space. Further, as the first and second blade elements have a smaller chord length than a conventional wind turbine blade, they can be manufactured by an extruding and/or pultruding process.
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