Composite tubular woven seal for gas turbine nozzle and shroud interface

摘要

A compliant woven tubular seal (70) is provided in an arcuate cavity opening through an axial face of a plurality of shroud segments in opposition to a nozzle retaining ring. The annular composite tubular woven compliant seal includes a stainless steel inner metal core (78) surrounded by an annular layer of silica fiber (80). Surrounding the silica fiber is a metal foil (82) which prevents flow past the supplemental seal. an outer wear-resistant braiding (84) serves as a protective covering and wear surface.