The Boeing Company

Nicholas J Silveri

Kamiar J Karimi

Aaron Jonathan Kutzmann

Eugene V Solodovnik

Frederic Lacaux

Mary Eileen Beckman

Esther S Zidovetzki

Patrick R Darmstadt

Alejandro Silva

An electric propulsion unit comprising a housing, an AC motor, a beta rod, a propeller, a governor, an inverter, and a controller. The AC motor is disposed within the housing and includes bearings supported inside the housing, a hollow motor shaft rotatably coupled to the housing by the bearings, a stator which is supported by the housing, and a rotor which is mounted to the hollow motor shaft. The beta rod is axially translatable inside the hollow motor shaft. The propeller is mechanically coupled to the hollow motor shaft. The propeller includes propeller blades having an adjustable pitch angle which depends on an axial position of the beta rod. The governor is configured to adjust a pitch angle of the propeller blades by actuating axial translation of the beta rod. The controller is disposed inside the housing and configured to control the pitch angle of the propeller blades.

Integrated electric propulsion unit

Growing community of inventors

Long Beach, CA, United States of America

Nicholas J Silveri