The Boeing Company
Hybrid propulsion engines for aircraft

Abstract:

Hybrid propulsion engines for aircraft are described herein. An example hybrid propulsion engine includes a propulsor and a gas turbine engine having a first drive shaft. The hybrid propulsion engine also includes an electric motor having a second drive shaft, and the propulsor is coupled to the second drive shaft. The hybrid propulsion engine further includes a clutch coupled between the first drive shaft and the second drive shaft to enable the gas turbine engine to drive the propulsor, via the clutch, during a first mode of operation and to enable the electric motor to drive the propulsor during a second mode of operation.