Drive rotor blade for use in under water power station, has vibrator disk projecting above edge of blade outside blade in blade surface level, where blade is arranged at distance from rotor axis and possesses disc shaped basic form

摘要

The blade (1) has a drive shaft (2) which is pointing in a direction of flow (4), where the blade is adjustably arranged with an inclined blade surface level (3) in the direction of flow. The blade is arranged at a distance from the rotor axis and possesses disc shaped basic form. A vibrator disk (5) projects above an edge of the blade outside the blade in the blade surface level.