公开(公告)号：US20220112738A1

公开(公告)日：2022-04-14

申请号：US17431531

申请日：2019-10-31

Applicant: NABRAWIND TECHNOLOGIES, S.L

Inventor： Hely Ricardo SAVII COSTA ,  Ion AROCENA DE LA RÚA ,  Eneko SANZ PASCUAL ,  Javier IRIARTE ELETA ,  Jose Alberto ROJO CARRIÓN

IPC: E04H12/34 ,  F03D13/20

Abstract: A transition piece for a wind turbine tower including a hollow frustoconical piece that is connected to an upper ring and a lower ring. The upper ring is connected to crossbars and the lower ring to radial columns. The transition piece also includes three connectors, each of them being connected to a crossbar, two radial columns and two connection profiles that keep the three connectors joined together, so that a pair of radial columns is arranged between a connector and the lower ring and the crossbars are arranged between the upper ring and a respective connector. The radial columns form an angle of between 65° and 75°, measured between the longitudinal axis of the corresponding radial column with the normal axis of the frustoconical piece.

公开(公告)号：US20200157759A1

公开(公告)日：2020-05-21

申请号：US16688191

申请日：2019-11-19

Applicant: NABRAWIND TECHNOLOGIES, S.L.

Inventor： Hely Ricardo SAVII COSTA ,  Ion AROCENA DE LA RÚA ,  Eneko SANZ PASCUAL ,  Arantxa ESPARZA ZABALZA

IPC: E02D27/42 ,  E02D11/00 ,  E02D5/22 ,  E02D5/34 ,  F03D13/20

Abstract: Foundation for a tower of a wind turbine with at least three columns. The foundation includes a reinforced concrete pile corresponding to each of the tower columns. According to one embodiment the pile includes a bolt cage and a main reinforcement formed by a cylindrical framework made up of horizontal rings interconnected by vertical bars. The bolt cage is arranged inside the main reinforcement radially at a distance of less than 0.1 meters. Each of the piles resides in a hole formed in the ground. Concrete is not poured into the holes until the main reinforcements and bolt cages are placed therein and aligned with one another.