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A hub mounted actuation system for providing control of a portion of a rotor blade, such as a flap, on a rotorcraft. The rotor blade is attached to a rotor shaft that rotates with respect to an airframe. The hub mounted actuation system includes a stationary support mounted to the airframe and a rot

A hub mounted actuation system for providing control of a portion of a rotor blade, such as a flap, on a rotorcraft. The rotor blade is attached to a rotor shaft that rotates with respect to an airframe. The hub mounted actuation system includes a stationary support mounted to the airframe and a rotary support attached to the rotor shaft for concomitant rotation therewith. At least one hub actuator rotates in combination with the rotor blade and includes a piston which is slidable within a housing. The piston and housing define a pressure chamber within the actuator which contains a fluid to be pressurized. A displacement control device is disposed between the stationary support and the rotary support for controlling movement of the piston within the housing. A linkage connects the hub actuator to the portion of the blade to be controlled. The linkage is adapted to displace the blade portion as a function of the movement of the piston within the housing.

대표청구항 ▼

1. A hub mounted actuation system for providing control of a rotor blade on a rotorcraft, the rotor blade being attached to a rotor shaft that rotates with respect to an airframe, the system comprising:a stationary support mounted to the airframe; a rotary support attached to the rotor shaft for con

1. A hub mounted actuation system for providing control of a rotor blade on a rotorcraft, the rotor blade being attached to a rotor shaft that rotates with respect to an airframe, the system comprising:a stationary support mounted to the airframe; a rotary support attached to the rotor shaft for concomitant rotation therewith; at least one hub actuator with a piston and a housing, the piston being slidable within the housing, the piston and housing defining a pressure chamber within the at least one actuator which contains a fluid to be pressurized, the at least one hub actuator rotating in combination with the rotor blade; displacement control means disposed between the stationary support and the rotary support for controlling movement of the piston within the housing, a portion of the displacement control means being attached to the stationary support and a portion being attached to the at least one hub actuator; and a linkage attached to a portion of the blade and at least one actuator, the linkage adapted to displace the blade portion as a function of the movement of the piston within the housing.