Patent ID: 6371415
Filing Date: 2002-04-16
Classification: B64C,Y02T

Abstract:
A component having an aerodynamic flow profile, said component comprising a profile body having a leading edge, a trailing edge, and at least one profile section positioned between ends of said profile body, a leading edge flap (2), a flap bearing (80) tiltably mounting said leading edge flap to said profile section for tilting about a bearing axis extending lengthwise in said component, a piezoelectric drive connected to said leading edge flap for tilting said leading edge flap, said piezoelectric drive comprising at least a first piezo-drive element (10) and a second piezo-drive element (20) arranged one behind the other in a chord direction (CD) of said profile section, so that said first piezo-drive element (10) is positioned to face said trailing edge (TE) and said second piezo-drive element (20) is positioned to face said leading edge (LE), a fixed mounting point (50) secured in said profile body between said first and second piezo-drive elements for movably holding said first and second piezo-drive elements, a lever (90A) having a first lever end (80â€²) rigidly connected to said leading edge flap (2) and a second lever end (90), a first force transmitting member (60) positioned for transmitting a piezo-motion of said first piezo-drive element (10) to said second lever end (90) and a second force transmitting member (70) positioned for transmitting a piezo-motion of said second piezo-drive element (20) to said second lever end (90) for causing a flap motion of said leading edge flap (2) in response to said piezo-motions.