Patent ID: 8496431
Filing Date: 2013-07-30
Classification: F01D,F05D,Y02T

Abstract:
1. A turbine ring assembly for a gas turbine, the assembly comprising: a complete ring comprising a single piece of ceramic matrix composite material (CMC), the ring having opposite lateral faces; a metal structure for supporting the CMC ring, the structure comprising first and second metal annular supports having inner lateral faces that are situated facing opposite lateral faces of the CMC ring, the CMC ring being mounted between the first and second annular supports in such a manner as to allow differential expansion at least in a radial direction between the CMC ring and the annular supports; a metal hoop surrounding the CMC ring and having lateral annular portions engaged in grooves formed in the inner lateral faces of the annular supports; a plurality of elastically-deformable tongues carried by the metal hoop and pressing against the CMC ring for centering the CMC ring; and at least one element for preventing the CMC ring from turning about its axis.