Pitch systems for blades of wind turbines and associated methods

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12163505
APP PUB NO 20240271598A1
SERIAL NO

18436106

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The present disclosure is related to pitch systems for blades of wind turbines. The pitch system comprises a pitch bearing having a first bearing ring connected to a hub of the wind turbine, and a second bearing ring connected to a blade. The pitch system also includes an annular gear and a pitch drive having a motor, a gearbox, a main brake, and a pinion. In addition, the pitch system includes an auxiliary brake system comprising an auxiliary brake and an auxiliary pinion to engage with the annular gear, where the auxiliary brake is configured to switch between an active state, wherein braking forces are applied to the annular gear to maintain the blade in an instantaneous position, and an inactive state. The present disclosure further relates to wind turbines comprising such pitch systems and methods for applying an emergency pitch braking torque to a pitch system.

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Patent Owner(s)

Patent OwnerAddress
GENERAL ELECTRIC RENOVABLES ESPANA S L08005 BARCELONA

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bescos, Grillo Javier Barcelona, ES 6 3
Bosch, Collado Josep Barcelona, ES 2 1
Medina, Diaz Alio Barcelona, ES 3 1
Palomares, Rentero Pedro Barcelona, ES 9 35
Vega, Boada Ignasi Barcelona, ES 1 0

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