Variable stator vane bushing assembly

Systems and methods include providing a variable stator vane assembly having a stator vane bushing disposed in a housing of the variable stator vane assembly and disposed annularly around stator vanes of the stator vane assembly. One or more tolerance rings are disposed between the housing and the liner to maintain alignment between the stator blades and the liner, between the housing and the liner, or a combination thereof when the variable stator blade assembly is operated at elevated temperatures. 系统和方法包括提供可变定子叶片组件，该可变定子叶片组件具有定子叶片衬套，该定子叶片衬套设置在可变定子叶片组件的壳体中并且围绕定子叶片组件的定子叶片环形地设置。一个或多个公差环设置在壳体与衬套之间，以便当可变定子叶片组件在高温下操作时维持定子叶片与衬套之间、壳体与衬套之间、或它们的组合之间的对准。