Eurocopter Deutschland Gmbh

Christine Mueller

Gerald Kuntze-Fechner

Markus Bauer

Alois Wagner

Hermann Sahlstorfer

Dieter Preissler

Ulrich Denecke

A fiber-composite rotor blade, especially of a rotary-wing aircraft, with a predefined rotor blade profile that has a predefined outer contour of the profile. The fiber-composite rotor blade includes a fiber-composite rotor blade structure having an upper and a lower cover skin and a profile core situated between them, and at least one highly extensible cable integrated into the fiber-composite rotor blade structure in the direction of the span of the rotor blade, whereby the cable can be connected to a functional device that can be attached onto or into the fiber-composite rotor blade structure. The cable is a highly extensible power and/or signal transmission cable that includes at least one cable strand with at least one first cable core made of an electrically insulating, elastic plastic material, and at least one first cable wire that is wound around the first cable core at a predefined pitch angle, like a spiral and free of crossovers.

Highly extensible power and/or signal transmission cable as well as rotor blade with such a cable

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.

Rotor blade with flap and flap drive

Growing community of inventors

Munich, Germany

Christine Mueller