Rotor blade with flap and flap drive

US6644919B2 · kind B2 · utility

Assignee

• Eurocopter Deutschland GmbH · DE

Inventors

• Markus Bauer · Oberkochen, DE
• Ulrich Denecke · Neubiberg, DE
• Gerald Kuntze-Fechner · Waakirchen, DE
• Christine Mueller · Munich, DE
• Hermann Sahlstorfer · Ottobrunn, DE
• Alois Wagner · Dietramszell, DE

Key dates

• Filing date: Dec 11, 2001
• Grant date: Nov 11, 2003
• Expiry date: Feb 21, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T50/30
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A rotor blade arrangement includes a rotor blade with a hollow blade chamber therein, and a flap module removably arranged and secured in the blade chamber. The flap module includes a module housing received in the blade chamber, an actuator arranged in the housing, a flap pivotably arranged at an edge of the housing, and a power transmission linkage connecting the actuator to the flap. The module housing is inserted through an opening into the blade chamber, so that the flap protrudes and forms a continuation of the aerodynamic contour of the blade. The flap may be a trailing edge flap at the trailing edge or a leading edge nose flap at the leading edge of the blade. The flap module does not change the center of gravity of the blade. The entire flap module can be easily removed from the blade for adjustment, inspection, maintenance, repair or replacement.