Propulsion system for an aircraft
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United States of America Patent
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Mar 19, 2024
Grant Date -
May 11, 2023
app pub date -
Oct 12, 2020
filing date -
Oct 16, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
A propulsion system for an aircraft includes a rotor and a nacelle fairing that extends around the rotor in relation to an axis. The nacelle fairing includes an upstream portion forming an inlet section of the nacelle fairing as well as a downstream portion, a downstream end of which forms an outlet section of the nacelle fairing. The downstream portion includes radially inner and outer walls, both of which are made of a deformable shape memory material. The wall has independently actuatable piston actuator mechanisms, each actuator mechanism being actuatable independently of the others and being designed to cooperate with means built into an inner surface of the wall to deform the wall in a radial direction in relation to the axis under the effect of a predetermined displacement command.
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