Patent ID: 8356768

Claim:
A transmission for a rotary-wing aircraft, the transmission comprising: a differential torque-splitting mechanism adapted for interfacing with a shaft about a longitudinal shaft axis of rotation, the differential torque-splitting mechanism comprising: a drive disk coaxial with the longitudinal shaft axis of rotation and adapted to be in rotation with the shaft; a first driven member coaxial with the longitudinal shaft axis of rotation and generally adjacent the drive disk; a second driven member coaxial with the longitudinal shaft axis of rotation and generally adjacent the drive disk; and a plurality of pin members, each pin member pivotally engaging the drive disk at a central portion of the pin member, each pin member pivotally engaging the first driven member at a first end portion of the pin member, and each pin member pivotally engaging the second driven member at a second end portion of the pin member; wherein the first driven member is configured to drive a first transfer gear and the second driven member is configured to drive a second transfer gear.