|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||416/023 ; 244/215 ; 244/217 ; 244/090R|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 29 인용 특허 : 8|
A helicopter rotor blade includes a main airfoil body (12) and a movable control flap (3) incorporated in the trailing edge profile of the airfoil body. The flap (3) is movably connected to the main airfoil body (12) by a flexibly bendable junction element (4), and is actuated by a piezoelectric actuator unit (5) via a push/pull rod (6) and a lever arm (7), whereby the control flap is deflected relative to the main airfoil body. The junction element (4) is preferably a continuous integral fiber-reinforced composite component having a flexible bending por...
[ What is claimed is:] [1.] A rotor blade for a helicopter, comprisinga main airfoil body,a flap that is deflectable relative to said main airfoil body,at least one flexibly bendable junction element connecting said flap to said main airfoil body, andan actuator mechanism connected to said flap and adapted to deflect said flap through a deflection angle relative to said main airfoil body,wherein said at least one junction element respectively comprises a flexible bending portion at which said junction element is adapted to flexibly bend when said flap is...