公开(公告)号：US20220025845A1

公开(公告)日：2022-01-27

申请号：US17292812

申请日：2019-11-13

Applicant: Vestas Wind Systems A/S

Inventor： Torben Ladegaard Baun ,  Jesper Lykkegaard Neubauer ,  Leif Christoffersen ,  Per Holten-Møller ,  Anders Yde Wollesen

IPC: F03D1/02 ,  F03D7/02 ,  F03D13/10 ,  F03D80/70

Abstract: A multirotor wind turbine (1) comprising a yaw arrangement (6) and a tower (2) is disclosed. A load carrying structure comprises first and second arms (3) extending from the yaw arrangement (6) and carrying energy generating units (4). the yaw arrange-ment (6) comprises an outer wall part (7) arranged coaxially with the tower (2) and forming a closed ring extending circumferentially about an outer surface of the tower (2), thereby forming a space (8) between the tower (2) and the outer wall part (7). The outer wall part (7) and the outer surface of the tower (2) are rotatable relative to each other.

公开(公告)号：US11181097B2

公开(公告)日：2021-11-23

申请号：US16610724

申请日：2018-06-12

Applicant: Vestas Wind Systems A/S

Inventor： Torben Ladegaard Baun ,  Peter Bøtteher ,  Jesper Lykkegaard Neubauer ,  Leif Christoffersen

IPC: F03D13/20 ,  E04H12/20 ,  F03D1/02 ,  F03D7/02

Abstract: A multirotor wind turbine (1) comprising a tower structure (2) and at least one load carrying structure (3), each load carrying structure (3) being arranged to carry two or more energy generating units (5), is disclosed. The wind turbine (1) further comprises a yawing arrangement (6) comprising a first part (9) being fixedly connected to the tower structure (2) and a second part (10) being fixedly connected to at least one of the load carrying structure(s) (3). The first part (9) and the second part (10) are configured to perform rotating movements relative to each other, thereby allowing the load carrying structure (3) to perform yawing movements relative to the tower structure (2). At least one guy wire (7) is connected between an anchoring point (8) at the ground and the first part (9) of the yawing arrangement (6). The invention further provides a yawing arrangement (6) for such a multirotor wind turbine (1).

公开(公告)号：US20210102528A1

公开(公告)日：2021-04-08

申请号：US17046319

申请日：2018-12-10

Applicant: Vestas Wind Systems A/S

Inventor： Leif Christoffersen ,  Lars Langvardt Krogh ,  Lars Skifter ,  Thomas Paw Buus

IPC: F03D80/70 ,  F03D15/00 ,  F16N7/36 ,  F16N21/00 ,  F16H57/04 ,  F16J15/42

Abstract: A wind turbine drive train component (22) comprising a rotating shaft (61) with a radial seal (50) is provided. The radial seal (50) comprises a stationary part and a rotating part. The stationary part comprises a ring (51) with an inner edge and an outer edge, the inner edge being configured for contactlessly surrounding the shaft (61). The rotary part comprising a disc (52), coaxially connected to the shaft (61) for rotation therewith and comprising a flange (53) that wraps around the outer edge of the ring (51). The radial seal (50) further comprises an annular air lock gap (55) for containing an amount of lubrication fluid (64) and thereby closing off the air lock gap (55) when the rotary part rotates at a rotational speed above a predetermined threshold speed, the annular air lock gap (55) being formed by an inner surface of the flange (53), an outer part of the opposing parallel surface of the disc (52) and the outer edge of the ring (51).