Patent ID: 11927103
Assignee: GENERAL ELECTRIC COMPANY
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 10:
11. A method of mitigating thermal rotor bow in a rotor assembly of a turbine engine, the method comprising:
receiving feedback on a temperature within a turbine engine in a post-shutdown state;
during the post-shutdown state, initiating actuation of a starter motor at a first time when the temperature is greater than a predetermined threshold;
operating the starter motor for a first motoring time to exhaust some residual heat from the turbine engine;
shutting down the starter motor after the first motoring time;
receiving additional feedback on the temperature within the turbine engine in the post-shutdown state after the first motoring time;
actuating the starter motor at a second time when the temperature is greater than the predetermined threshold; and
operating the starter motor for a second motoring time to exhaust some additional residual heat from the turbine engine; and
shutting down the starter motor after the second motoring time.