COMPOSITE KEYSTONED BLADE TRACK

摘要

A blade track for a gas turbine engine includes a plurality of blade track segments. The blade track segments are arranged circumferentially around a central axis to form the blade track.

主权项

1. A blade track for a gas turbine engine, the blade track comprising a plurality of blade track segments comprising ceramic-matrix composite materials and shaped to extend part-way around a central axis, each blade track segment including opposing circumferential end faces and a radially outer surface extending between the end faces, and
a composite-lock structure positioned to engage the outer surfaces of the blade track segments, the composite-lock structure including at least one reinforcement fiber of ceramic-containing material suspended in ceramic-matrix material, wherein the blade track segments are positioned circumferentially around the central axis to form a ring, the end faces of the blade track segments are engaged with one another, and the composite-lock structure is configured to provide a radially-inward force toward the central axis against the blade track segments such that each blade track segment acts as a keystone to maintain the form of the ring.