GAS TURBINE ENGINE WITH SEAL INSPECTION FEATURES

摘要

A turbine shroud of a turbine of a gas turbine engine and methods of making the turbine shroud are disclosed. The turbine shroud is configured to direct products of a combustion reaction in a combustor of the gas turbine engine toward a plurality of rotatable turbine blades of the turbine to cause the plurality of turbine blades to rotate.

主权项

1. A turbine assembly comprising
a turbine wheel assembly including a disk and a plurality of blades that extend outwardly from the disk in a radial direction away from an axis, and a turbine shroud that extends around the blades of the turbine wheel assembly to block gasses from passing over the blades during operation of the turbine assembly, wherein the turbine shroud includes a plurality of blade track segments arranged circumferentially adjacent to one another about the axis to form a ring around the axis, each blade track segment includes a runner that forms a primary track surface facing the axis and spaced a first radial distance from the axis, and at least one of the plurality of blade track segments includes a marker arranged radially outward of the blades included in the turbine wheel assembly that forms a plurality of rub indication surfaces each spaced a different distance from the axis than the primary track surface so that an approximate rub depth of the turbine wheel assembly into the blade track caused by turbine wheel assembly rotation within the turbine shroud during operation of the turbine assembly can be determined by visually observing the marker.