Hub for a propeller having variable pitch blades
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United States of America Patent
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Mar 3, 2015
Issued Date -
N/A
app pub date -
Jul 23, 2010
filing date -
Aug 5, 2009
priority date (Note) -
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Abstract
A hub for a propeller having variable pitch blades for a turbine engine, for example for a propfan turbine engine. The propeller hub includes: a polygonal ring having substantially radial cylindrical housings distributed about a central axis of the ring for receiving the blades; a rotor element for the turbine of the turbine engine; a supporting flange attached to the ring so as to connect the ring to the rotor element; and a plurality of backup retaining members linked to the rotor element, and each of which includes at least one bearing surface opposite an outer surface of the ring with a radial spacing.
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