Electric boost actuation system for translating rings
AssigneeHamilton Sundstrand Corporation
InventorWilliam E. Rhoden
Life of this patent
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Abstract
An actuation system for a gas turbine engine oriented about a centerline includes a translating ring, at least one hydraulic actuator, and at least one electric actuator. The translating ring is oriented about the centerline and configured to move axially along the centerline. The at least one hydraulic actuator is configured to provide a first mechanical force to move the translating ring along the centerline. The at least one electric actuator is configured to provide a second mechanical force to move the translating ring in the axial direction. The at least one electric actuator is controlled to provide the second mechanical force upon determination of an operating condition.
Claims15
An actuation system for a gas turbine engine oriented about a centerline, the actuation system comprising:
- a translating ring oriented about the centerline and configured to move axially along the centerline;
- at least one hydraulic actuator configured to provide a first mechanical force to axially move the translating ring along the centerline;
- and
- at least one electric actuator configured to provide a second mechanical force to axially move the translating ring, wherein the at least one electric actuator is controlled to provide the second mechanical force upon determination of an operating condition.
A method of actuating a translating ring of a gas turbine engine, the method comprising:
- applying a first force, using at least one hydraulic actuator, to translate the ring in an axial direction;
- sampling, using a controller, at least one sensed engine condition;
- determining, using the controller, an operating condition of the gas turbine engine based upon the at least one sensed engine condition;
- and
- applying a second force, using at least one electric actuator, to translate the ring in the axial direction based upon the operating condition of the gas turbine engine.
Dependencies are inferred from the claim text.