Patent ID: 8262349
Filing Date: 2012-09-11
Classification: F01D,F05D,F16J

Abstract:
1. A steam turbine comprising: a steam turbine casing; a rotor; and at least one compliant plate seal assembly situated between the casing and the rotor, the compliant plate seal assembly comprising: a supporting member being stationary with respect to the casing, a plurality of plate members movably mounted to the supporting member and extending towards the rotor, each plate member being inclined with respect to a rotation direction of the rotor; and an actuator for selectively exerting a pressure to retract the plate members in a direction away from the rotor, wherein the actuator comprises a carrier, a plurality of bores defined in an outer peripheral surface of the carrier, a plurality of compression members in corresponding bores, and a plurality of pistons attached to the compression members and retained in corresponding bores.