Gas turbine engine electromechanical variable inlet guide vane actuation system
AssigneeHoneywell International Inc.
InventorsTimothy D. Mahoney, James N. Quitmeyer, Darrell Horner, Jeff Miller
Life of this patent
Estimating the term…
Abstract
An electromechanical inlet guide vane actuation system includes one or more electric motor driven actuators that are used to appropriately position the inlet guide vanes in a gas turbine engine. The actuation system includes a control circuit that supplies guide vane actuation control signals in response to guide vane position command signals it receives. The guide vane actuation control signals are supplied to one or more electric motors, which position actuators, and thus the inlet guide vanes, to the commanded position.
Claims13
A variable inlet guide vane actuation system, comprising
- a control circuit including a primary channel and a secondary channel, each channel adapted to receive one or more guide vane position control signals and operable, in response thereto, to selectively supply guide vane actuation control signals;
- a primary electric motor coupled to receive the guide vane actuation control signals from the primary channel and operable, in response thereto, to supply a drive force;
- a secondary electric motor coupled to receive the guide vane actuation control signals from the secondary channel and operable, in response thereto, to supply a drive force;
- and
- an actuator assembly coupled to the primary and secondary electric motors and configured, upon receipt of the drive force therefrom, to selectively move between a closed position and an open position.
A gas turbine engine system, comprising:
- an engine case;
- a turbine mounted at least partially within the engine case and having a plurality of moveable inlet guide vanes;
- a hardened unison ring rotationally coupled between the engine case and each of the inlet guide vanes;
- and
- a guide vane actuation control system including:
- a control circuit including a primary channel and a secondary channel, each channel adapted to receive one or more guide vane position control signals and operable, in response thereto, to supply guide vane actuation control signals,
- a primary electric motor coupled to receive the guide vane actuation control signals from the primary channel and operable, in response thereto, to supply a drive force,
- a secondary electric motor coupled to receive the guide vane actuation control signals from the secondary channel and operable, in response thereto, to supply a drive force, and
- an actuator assembly coupled between the primary and secondary electric motors and the unison ring, the actuator assembly configured, upon receipt of the drive force therefrom, to selectively rotate the unison ring in either a first or a second direction, to thereby selectively move the inlet guide vanes between a closed position and an open position, respectively.
Dependencies are inferred from the claim text.