Patent ID: 11958624
Assignee: RTX CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 15:
16. An assembly for an aircraft, comprising:
a rotating structure comprising a turbine rotor;
an epicyclic gear system including a sun gear, a ring gear and a plurality of intermediate gears, the sun gear rotatably driven by the rotating structure, and each of the plurality of intermediate gears between and meshed with the sun gear and the ring gear;
a carrier rotatably supporting each of the plurality of intermediate gears;
a first propulsor rotor coupled to the ring gear;
a second propulsor rotor coupled to the carrier; and
an electric machine coupled to the first propulsor rotor and the second propulsor rotor through the epicyclic gear system, wherein the assembly is configured to at least one of
stop rotation of the first propulsor rotor using the electric machine while the second propulsor rotor continues to rotate; or
stop rotation of the second propulsor rotor using the electric machine while the first propulsor rotor continues to rotate.