US 12,188,453 B2
Arrangement for lowering and raising service tools used for wind turbine blade and tower maintenance
Janis Putrams, Riga (LV)
Assigned to AERONES, INC., San Jose, CA (US)
Appl. No. 17/915,599
Filed by AERONES, INC., San Jose, CA (US)
PCT Filed Apr. 2, 2020, PCT No. PCT/IB2020/053139
§ 371(c)(1), (2) Date Sep. 29, 2022,
PCT Pub. No. WO2021/198734, PCT Pub. Date Oct. 7, 2021.
Prior Publication US 2023/0126777 A1, Apr. 27, 2023
Int. Cl. F03D 80/50 (2016.01); B63B 27/30 (2006.01); B63B 81/00 (2020.01); B66C 23/20 (2006.01); F03D 13/25 (2016.01)
CPC F03D 80/50 (2016.05) [B63B 27/30 (2013.01); B63B 81/00 (2020.01); B66C 23/207 (2013.01); F03D 13/25 (2016.05); F05B 2230/6102 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An arrangement for lowering and raising service tools used for offshore wind turbine blade and tower maintenance, the arrangement comprising:
a truss system;
a rigging; and
a rigging pulling in and letting out means;
the truss system comprising two booms, the booms having forward end and a rear end, wherein the forward ends of the booms are pivotally attached to a supporting means, the supporting means being adapted to be leaned against or releasably fixed to a wind turbine tower or wind turbine tower mooring elements;
the rigging and the rigging pulling in and letting out means being operably connected with the truss system, so to allow lowering and raising service tools used for offshore wind turbine blade and tower maintenance;
the rigging comprising a carrying rope, three positioning ropes, and booms' hanging ropes;
the rigging pulling in and letting out means comprising first, second, and third positioning rope's winches, the first and the second positioning rope's winches are mounted at the rear ends of the booms and the third positioning rope's winch is adapted to be releasably fixed to a wind turbine generator platform;
the rigging pulling in and letting out means further comprising hanging ropes' winches, mounted on, or adapted to be releasably fixed to a wind turbine generator platform, and a carrying rope's winch, mounted on, or adapted to be releasably fixed to a wind turbine generator nacelle;
wherein a first end of the carrying rope is adapted to be operably connected to the carrying rope's winch, a second end of the carrying rope is adapted to be connected to the service tools used for offshore wind turbine blade and tower maintenance, first ends of the positioning ropes are adapted to be connected to a side or lower part of the service tools, and second ends of first and second ones of the positioning ropes are adapted to be operably connected to respective positioning rope's winches; and
first ends of the booms' hanging ropes are adapted to be operably connected to the hanging ropes' winches, and second ends of the booms' hanging ropes are adapted to be connected to the forward ends and the rear ends of the booms.