DOVETAIL RETENTION SYSTEM FOR BLADE TRACKS

摘要

A turbine shroud for a gas turbine engine includes a metallic support ring and a ceramic blade track. The blade track is formed from a plurality of blade track segments including dovetail posts. The dovetail posts are inserted through apertures in the support ring and are coupled to the support ring by segment retainers coupled to the dovetail posts providing a retention system for the ceramic blade track.

主权项

1. A turbine shroud comprising
a metallic inner carrier formed to include a plurality of apertures, a plurality of ceramic blade track segments each including an arcuate runner arranged radially inward from the metallic inner carrier and a dovetail post extending radially outward from the arcuate runner through one of the apertures formed in the metallic inner carrier, and a plurality of segment retainers arranged radially outward from the metallic inner carrier, each segment retainer formed to include a retention channel mated with a portion of a corresponding dovetail post, and each segment retainer sized to block movement of the corresponding dovetail post through the aperture so that the plurality of ceramic blade track segments are coupled to the metallic inner carrier.