| 摘要 |
A turbine stage of a gas turbine engine (10) is surrounded by a ring of liner segments (34). The liner segments (34) can be moved radially in unison towards and away from the tips or fins (38) of blades (36),by rotation of a connected unison ring (18), so as to avoid blade fin rub. Alternatively, the segments (34) can be moved in a common direction by bodily movement of the connected unison ring (18) so as to avoid blade fin rub during off axis rotation of the turbine stage.
|
