High-pressure rotor control system
AssigneeGeneral Electric Company
InventorsRavindra Shankar Ganiger, Kudum Shinde, Weize Kang, Surender Reddy Bhavanam
Life of this patent
Estimating the term…
Abstract
A high-pressure (HP) rotor control system includes an HP rotor and a controller. The HP rotor includes a plurality of rotor blades that rotate about a centerline axis, and a plurality of variable stator vanes (VSVs) that are rotatable about a variable stator vane (VSV) pitch axis. The plurality of VSVs are disposed at an incidence angle. The controller controls the plurality of VSVs to rotate the plurality of VSVs about the VSV pitch axis to change the rotor incidence angle of the plurality of VSVs as the HP rotor approaches a thrust crossover condition.
Claims20
A high-pressure (HP) rotor control system comprising:
- an HP rotor including a plurality of rotor blades that rotate about a centerline axis, and a plurality of variable stator vanes (VSVs) that are rotatable about a variable stator vane (VSV) pitch axis, the plurality of VSVs disposed at an incidence angle;
- and
- a controller that:
- determines whether the HP rotor is approaching a thrust crossover condition;
- and
- controls the plurality of VSVs to rotate the plurality of VSVs about the VSV pitch axis to change the incidence angle of the plurality of VSVs if the HP rotor is approaching the thrust crossover condition.
A method of controlling a high-pressure (HP) rotor, the HP rotor including a plurality of rotor blades that rotate about a centerline axis, and a plurality of variable stator vanes (VSVs) that rotate about a variable stator vane (VSV) pitch axis, the method comprising:
- determining, by a controller, whether the HP rotor is approaching a thrust crossover condition;
- and
- controlling, by the controller, the plurality of VSVs to rotate the plurality of VSVs about the VSV pitch axis to change an incidence angle of the plurality of VSVs if the HP rotor is approaching the thrust crossover condition.
Dependencies are inferred from the claim text.