Rotor hub mounted actuator for controlling a blade on a rotorcraft
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 12, 2002
Grant Date -
N/A
app pub date -
Aug 8, 2000
filing date -
Aug 8, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
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.
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