Guorong He

Centrifugal variable-propeller hub of wind driven generator

Downwind pitch-controlled wind-driven generator

Downwind Variable Pitch Wind Turbine Generator

Vibration damper for wind generator

Medium and small sized variable propeller pitch wind-driven generator

Centrifugal variable paddle hub of windmill generator

Feathering shut-down mechanism of small and medium-sized wind driven generator

Variable-pitch linear driving mechanism for small and medium-sized wind driven generators

Wind driven generator stopping mechanism

Pitch-changing linear driving mechanism of small and medium size wind driven generator