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US 2022/0024570 A1Published application
Flap drive device and blades of rotary-wing aircraft
AssigneeSeoul National University R&Db Foundation
InventorsSang Joon SHIN, Won Jong EUN, Byeong Uk IM, Chang Bae LEE, Jin Wook SHIN
Life of this patent
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Abstract
Provided are a flap drive device and a rotorcraft blade, and more particularly, a flap drive device using a two-section link mechanism, which may be applied to a rotorcraft blade, and a rotorcraft blade including the same.
Claims6
A flap drive device comprising:
- a drive module;
- a flap drive link arm arranged behind the drive module and extending by a certain length in a front-rear direction;
- and
- a flap module arranged behind the flap drive link arm,
- wherein the flap module performs a pitch movement around a rotation center axis,
- the drive module comprises an actuator shaft capable of changing a position thereof in the front-rear direction,
- a front end of the flap drive link arm is pivotably connected to the actuator shaft, a rear end of the flap drive link arm is pivotably connected to the flap module, and
- when a position of the actuator shaft changes in the front-rear direction, the flap module performs the pitch movement around the rotation center axis.
5 more elements
Dependencies are inferred from the claim text.