Patent attributes
Within such machines as gas turbine engines it is desirable to provide close association between rotating assemblies and a rotor path arrangement to reduce leakage. However, such arrangements of rotor assemblies and rotor path arrangements are subject to thermal cycling and differentials between the respective parts can lead to rub associations. In order to allow closer thermal responses between the respective rotor path arrangement and rotor assembly, a flexible assembly is provided for a liner. A face surface is presented upon a backer plate or floating ring such that the thermal response can be tuned to the reciprocal similar effects under the same conditions of the rotor assembly. In such circumstances, closer gap control can be achieved. Furthermore, rather than requiring an entire integral casing to be overhauled, generally only the face surfaces and/or the flexible assembly will require remedial action.
