Fan blade with variable profile geometry, in which profile geometry can be altered by elastic deformation in at least one part region over blade height

摘要

The variable geometry blade with central axis (2) and two positions (20, 21) is fitted in a fan. In at least one part region over the blade height, it has profile geometry which can be altered by the elastic deformation of the blade. An actuator, integrated into the blade, is used to bring about this elastic deformation. It may be possible to alter the profile geometry of individual part regions separately from each other.