Patent ID: 11898499
Assignee: THE BOEING COMPANY
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. An aircraft engine comprising:
a fan;
a gas turbine engine to drive the fan, the gas turbine engine having a low-pressure drive shaft operatively coupling a low-pressure turbine and a low-pressure compressor and a high-pressure drive shaft operatively coupling a high-pressure turbine and a high-pressure compressor; and
a power transfer system including:
a differential having an input shaft, a first output shaft in gear with the low-pressure drive shaft, and a second output shaft in gear with the high-pressure drive shaft; and
a gearbox between the low-pressure drive shaft of the gas turbine engine and the first output shaft of the differential, the gearbox configured to provide power transfer through the differential from the low-pressure drive shaft to the high-pressure drive shaft.