Bläserrotorschaufel mit einem Sicherheitsprofil

摘要

The blade (12) has a root (10) for fixing it to its hub, and a plate (11) between the blade and root. The blade itself has a concave front face and a convex rear face. The plate is also curved in shape, having a convex curved edge on the side adjacent to the blade back. The blade is also thicker towards its root end, reducing the risk of damage to one blade from an adjacent one in the event of a blade breaking.