KEYSTONED BLADE TRACK

摘要

A blade track for a gas turbine engine includes a plurality of blade track segments (22). The blade track segments (22) are arranged circumferentially around a central axis to form the blade track (20). Each blade track segment (22) has opposing circumferential end faces (21, 23) and a radially outer surface (25) extending between the end faces. A track biaser (30) is positioned to surround the blade track. The end faces (21, 23) of the blade track segments are engaged with one another and the track biaser is configured to provide means for radially biasing the blade track segments (22) toward the central axis such that each blade track segment (22) acts as a keystone to maintain the form of the ring.