Patent ID: 7096657
Filing Date: 2006-08-29
Classification: F01D,F02C,F04D

Abstract:
1. 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.