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US 11,932,410 B2Granted
Propulsion system for an aircraft
AssigneesSafran, Safran Helicopter Engines
InventorsJean-Louis Robert Guy Besse, Ye-Bonne Karina Maldonado
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AssigneesSafran, Safran Helicopter Engines
InventorsJean-Louis Robert Guy Besse, Ye-Bonne Karina Maldonado
Estimating the term…
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.
A propulsion system for an aircraft, comprising at least one rotor and a nacelle fairing extending around said at least one rotor with respect to an axis of rotation of said rotor, the nacelle fairing comprising an upstream section forming an inlet cross-section of the nacelle fairing and a downstream section, a downstream end of the downstream section forming an outlet cross-section of the nacelle fairing, wherein the downstream section comprises a radially internal wall and a radially external wall made of a deformable shape-memory material, the radially external wall comprising a plurality of actuator mechanisms with at least one cylinder, each actuator mechanism being operable independently of the other actuator mechanisms and being configured to cooperate with means embedded in an internal surface of the radially external wall so as to deform the radially external wall in a radial direction with respect to the axis of rotation, under the effect of a predetermined displacement command.
Dependencies are inferred from the claim text.