Tip sealing structure for blade, rotor including same, and gas turbine including same

Abstract

A tip sealing structure for a blade includes a casing having an inner circumferential surface facing the blade; a blocking groove formed in the inner circumferential surface of the casing; and a movable seal provided on a tip of the blade and configured to move in a depth direction of the blocking groove. Since the seal is configured to move into the blocking groove, tighter sealing at the tip of the blade can be accomplished. A seal bracket of the moveable seal encloses a movement space open at one end and includes a seal stop formed at the open end. A brush body including top and bottom crossbars is disposed partially within the seal bracket, such that movement of the moveable seal is limited by the bottom crossbar being stopped by the seal stop. A first brush seal is mounted on the brush body and positioned in the blocking groove.

Dependencies are inferred from the claim text.