Gas turbine engine with fan variable area nozzle having a rotational valve system
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United States of America Patent
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Jun 28, 2011
Grant Date -
Mar 12, 2009
app pub date -
May 31, 2007
filing date -
May 31, 2007
priority date (Note) -
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Abstract
A turbofan engine includes a fan variable area nozzle having a multiple of vents through a fan nacelle and rotatable elements rotatable within the vents by an actuator system. Rotation of the rotatable element within each vent changes the effective area of the fan nozzle exit area to permit efficient operation at a multiple of flight conditions.
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