Variable fan nozzle using shape memory material
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United States of America Patent
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May 3, 2016
Grant Date -
Feb 18, 2010
app pub date -
Oct 12, 2006
filing date -
Oct 12, 2006
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Abstract
A gas turbine engine (10) includes a fan (14), a nacelle (28) arranged about the fan, and an engine core at least partially within the nacelle. A fan bypass passage (30) downstream of the fan between the nacelle and the gas turbine engine conveys a bypass airflow (1) from the fan. A nozzle (40) associated with the fan bypass passage is operative to control the bypass airflow. The nozzle includes a shape memory material having a first solid state phase that corresponds to a first nozzle position and a second solid state phase that corresponds to a second nozzle position.
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