The Boeing Company
Shape-memory alloy power-assist apparatus

Abstract:

A power-assist apparatus includes a shape-memory alloy (SMA) rod, a power source, an actuator, and a differential gearbox. The SMA rod configured to rotate at an end of the SMA rod. The power source is coupled to the SMA rod. The actuator coupled to an openable apparatus. The differential gearbox is coupled between the actuator and the SMA rod. The differential gearbox converts the rotation of the SMA rod to motion of the actuator.