| 摘要 |
PURPOSE:To adjust a clearance at a sealing area simply by fitting sealing fin segments to stationary parts via bellows, and introducing high pressure or low pressure into the bellows. CONSTITUTION:Bellows 11, 11a are interposed and mounted between sealing segments 8, 8a and stationary parts 3, 4 respectively, so as to be movable in radial direction. Insides of bellows 11, 11a are communicated to both high pressure section and low press section of a turbine via a regulator valve 14 and a switching valve 16 respectively so that both high pressure and low pressure way be introduced therein. Thus, a clearance at a sealing area can be adjusted simply. |
