| 摘要 |
A gas turbine engine has a rotor including a rotor shaft which is journaled within an external structural engine casing. Stator elements are mounted within the external casing about the rotor, and in order to maintain a precise radial clearance between the rotor and stator elements, a stator support assembly is positioned within the engine casing and supports the stator elements relative to the rotor. The support assembly is comprised by an internal casing having one portion that is free to move by a limited amount in radial directions relative to the external casing, and a casing support disc extending generally radially outward to the internal casing from a bearing on the rotor shaft. The casing support disc holds the internal casing radially fixed relative to the shaft and, thus, references the movable portion of the internal casing relative to the rotor and rotor shaft rather than the external engine casing.
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