Patent ID: 11906017
Assignee: PRATT & WHITNEY CANADA CORP.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  G | IPC F

Claim 0:
1. A drive assembly comprising:
a torque shaft rotatable around a rotation axis, the torque shaft having a first end and a second end opposite the first end along the rotation axis, a first reference feature at an intermediary location between the first end and the second end, and a sun gear integrated to the torque shaft, at the first end;
a reference tube having a fixed end secured to the torque shaft adjacent the second end, a free end having a second reference feature adjacent the first reference feature, the reference tube extending around the torque shaft;
a torque sensor fixed relative to the rotation axis, the torque sensor operable to measure a distance between the first reference feature and the second reference feature;
a source shaft rotatable around the rotation axis, the source shaft coupled to the second end;
a ring gear fixed relative the rotation axis and concentric to the rotation axis;
a plurality of planetary gears circumferentially distributed around the rotation axis, the plurality of planetary gears engaged between the sun gear and the ring gear; and
an output shaft having a carriage receiving the plurality of planetary gears in an individually rotatable manner, the output shaft rotatable with the carriage and the plurality of planetary gears as a whole around the rotation axis.