Alignment of static parts in a gas turbine engine

摘要

A first structural static component having an outer diameter is aligned with a second structural static component having an inner diameter to the centerline of a gas turbine engine rotating assembly. The first static component is centered inside the second static component leaving a gap between the outer diameter of the first component and the inner diameter of the second component to permit them to mate at operating temperatures. Tabs and slots are placed on the periphery of the static components to align the static components with the centerline at build temperature.

主权项

1. A method of aligning a first structural static component having an outer diameter with a second structural static component having an inner diameter to the centerline of a gas turbine engine rotating assembly, the method comprising:
centering the first structural static component inside the second structural static component leaving a gap between the outer diameter of the first structural static component and the inner diameter of the second structural static component, the gap sized to permit the outer diameter and the inner diameter to mate at operating temperatures; and positioning a plurality of tabs protruding from one of the structural static components into a mating plurality of slots that extend entirely through the other structural static component to align the structural static components with the centerline at build temperature, each mating tab and slot being aligned to permit closing of the gap during operation of the engine.