Daimler Chrysler Ag

Airbus Defence and Space Gmbh

Josef Steigenberger

Guenther Mueller

Michael Gruenewald

Daniel Redmann

Ludwig Schauwecker

Michael Bauer

Clemens Moeser

An aircraft jet engine includes an exhaust-gas nozzle having a device configured to blow out an exhaust gas in a pulsating manner into an exhaust-gas stream so as to reduce noise. The exhaust-gas nozzle includes openings distributed along a circumference of the exhaust-gas nozzle and disposed upstream from a nozzle outlet. The openings communicate with the device.

Aircraft engine with an apparatus for pulsating expiration of gas into the exhaust nozzle

An adaptive flow body is provided whose profile can be adapted to different operating requirements regarding lift and crosswinds, flow resistance, and steering. The rear part of the flow body is divided into two rear partial profiles by a slot that penetrates from the trailing edge toward the middle part in the lengthwise direction of the flow body profile. These rear partial profiles each also have a flexible inner skin and flexible outer skins fastened continuously on the middle part. An actuator with pushing or pulling movements acts on each inner skin, which movements are transmitted by joints from the inner skin to internal structural elements which transmit these movements through rigid connections as bending moments to the outer skin. The adaptive flow body has a rigid middle part, a forward leading part, and a rear trailing part fastened thereto, with flexible cladding that covers the leading and trailing edges, and structural elements located in the front or rear parts and driven by actuators which act on the flexible cladding.

Adaptive flow body

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Bad Toelz, Germany

Josef Steigenberger