| 摘要 |
PURPOSE: To enable sectors of a turbine ring comprising a plurality of sectors of fan-shaped members of a composite ceramic material to be deformable without applying excessive mechanical stress thereto by a flat zone on the outer surface of each sector. CONSTITUTION: A turbine ring 11 arranged in a casing 1 of a gas turbine comprises first and second portions 12, 13 of an annular support divided in the upstream and downstream directions, and a seal ring 14. Axial annular grooves 18, 19 are arranged on an intermediate portion 16 and an inner portion 17 of the first portion 12. A male portion 25 at a distal end of a cylindrical member 24 arranged in an intermediate portion of the second portion 13 is engaged with the annular groove 18. The seal ring 14 formed by a kind of circular sectors 14a abutting each other is retained between an annular groove 28 arranged in the inner portion 27 of the second portion 13 and the annular groove 19. The radially outer radial faces 33b, 34b of axial ends 33 and 34 of each sector 14a form flat zones 33c, 34c. |
