Patent ID: 6551057
Filing Date: 2003-04-22
Classification: F01D,F04D,F16C

Abstract:
A damped torque shaft assembly for actuating devices on a gas turbine engine comprising:a hollow tube having a tube wall with a wall outer surface surrounding an enclosed hollow interior and circumscribing a tube axis; forward and aft crank arms operably connected to said wall and spaced axially apart with respect to said tube axis; forward and aft shafts fixedly connected to said forward and aft crank arms respectively; said forward and aft shafts having a shaft axis of rotation about which said tube is pivotable; a plurality of spaced-apart connecting means for connecting linking elements to the actuated devices, said connecting means secured to said tube wall on said wall outer surface; and said enclosed hollow interior having a volume sufficiently filled with a quantity of damping media to absorb vibratory energy by friction during operation of the engine.