Patent ID: 9559566
Date: 2017-01-31
CPC Classifications: H02K,H02N

Claim:
1. A motor actuator system comprising: a rotor shaft; a magnetic drive motor rotationally coupleable to the shaft; a capacitive drive motor rotationally coupleable to the shaft; an engagement system comprising a motor controller configured for selectively engaging and disengaging the magnetic drive motor and the capacitive drive motor with the rotor shaft, based on a desired rotational speed and torque output thereof; and an actuator coupled to the rotor shaft, wherein the actuator is configured to operate on a load based on converting rotational motion and torque output of the rotor shaft into linear motion of the load, the selectively engaged motor being rotationally coupled to drive the shaft; wherein the capacitive drive motor comprises a plurality of rotor capacitor components mounted along the rotor shaft and adjacent corresponding stator capacitor components disposed on a stator, the rotor shaft configured for rotation by capacitive coupling of the rotor capacitor components with the corresponding stator capacitor components.