Eads Deutschland Gmbh

Airbus Operations Gmbh

Airbus Deutschland Gmbh

Dornier Gmbh

Roger Drobietz

Ingo Udo Borchers

Knut Mau

Johann Reichenberger

Wolfgang Gleine

Ingo Borchers

Michael Gruenewald

Thomas Lange

Michael Grünewald

Sigurd Haeusler

Michael Bauer

Roland Uhlig

A high-lift flap of an aircraft is provided having a device for influencing the flap vortex as well as a device for influencing the flap vortex at the lateral edge of the aerodynamic high-lift flap, which can be achieved effectively and at low cost.

Aerodynamic flap of an aircraft having a device which influences the flap vortex

An assembly is provided for reducing the noise that is generated in the heating gas zone by turbofan engines. The assembly consists of an acoustically absorbent cladding in the heating gas flow channel of the turbofan engine. The cladding includes a plurality of neighboring cavities, into each of which four horns extends. The mouths of the horns are fixed to a perforated cover sheet. The cover sheet forms one wall of the heating gas flow channel.

Assembly for reducing noise in turbofan engines

In a method for reducing noise generated in a turbo engine with cascades, and a stator-rotor arrangement, in which hydrodynamic pressure fluctuations occurring on the cascades are reduced by varying the surface circulation of at least one section of at least one stator. A structure is provided on one or more stators, influencing the surface circulation of at least one section of the stator.

Method for reducing the noise of turbo engines

A process and system for noise reduction in multi-engine propeller-driven aircraft. The parameters of at least two propellers are adjusted with regard to frequency, amplitude, and phase so that the sound fields of the propellers are attenuated or completely extinguished by interference in the area of the closest aircraft fuselage.

Process and apparatus for noise reduction in multi-engine propeller-driven aircraft

Vortex generators are arranged on the edges of aircraft wing control surfaces to generate smaller vortices that weaken the main vortex that would otherwise be generated at these areas, and thereby reduce the aerodynamic generation of noise. Each vortex generator includes plural elongated elements in the form of rigid rods or flexible bristles protruding laterally outwardly from the respective edge of the control surface. The vortex generators are preferably arranged on the inboard and outboard edges of high lift flaps and slats.

Noise reducing vortex generators on aircraft wing control surfaces

Growing community of inventors

Salem, Germany

Roger Drobietz