Patent ID: 7625169

Claim:
An assembly including a segmented turbine liner movably supported by and within a turbine casing including structure, the assembly comprising: sensing means to sense the proximity of the segments of said liner to turbine blade tips during operational rotation of a stage of said blades within said casing structure; signal generating means connected to said sensing means; segment moving means connected to receive and be activated by signals generated by said signal generating means, so as to move as appropriate, any segments that said signals indicate are incorrectly spaced from respective blade tips, wherein said segment moving means includes a plurality of rotatable rods projecting both inward and outward of said casing structure, their inner ends being connected to respective segments, and their outer ends each being connected to the ends of respective links that are aligned axially of said casing structure, the other ends of said links being connected to a unison ring surrounding said casing structure; and rams connected between said signal generating means and said unison ring, the connection with said unison ring being such that on receipt of signals from said signal generating means, said rams move said unison ring bodily in a direction diametrically of said casing structure, to achieve via said links and rods, a desired movement in a common direction, of all segments except those opposing segments lying on the diametrical line of the applied force.