The Boeing Company
Mechanical virtual elliptical drive

Abstract:

A mechanical virtual elliptical drive, including an input motor, a wobble plate, a stator gear, and an output plate. The input motor may have a rotation axis, a substantially flat surface, and a rounded protrusion extending from the flat surface. The wobble plate may have a wobble axis disposed at a non-zero angle relative to the rotation axis. The rounded protrusion of the motor may engage a substantially flat face of the wobble plate, thereby causing the wobble plate to nutate around the stator gear.