Variable-pitch propeller or repeller

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United States of America Patent

PATENT NO 9476311
APP PUB NO 20130142653A1
SERIAL NO

13816794

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Abstract

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In the case of a variable-pitch propeller or repeller according to the invention, the pitch-adjusting device is arranged in the hub and formed in such a way that it allows only a numerically limited number of different blade pitches, preferably just two blade pitches, for which purpose the pitch-adjusting device comprises an electrical drive device, for moving the blades from a first blade pitch to a second of the numerically limited number of blade pitches, and an electrically actuable locking device, for locking the blades in the numerically limited number of different blade pitches.

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Patent Owner(s)

  • SIEMENS AKTIENGESELLSCHAFT

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Krackhardt, Ernst-Christoph Schenefeld, DE 3 14
Müller, Christian Norbert Witzhave, DE 1 6
Schröder, Dierk Selent, DE 13 37

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