| 摘要 |
PROBLEM TO BE SOLVED: To provide a turbine stage including a simple and effective sealing means between a nozzle and a sector ring for preventing gas from passing through a part between an outside rim of the nozzle and an upstream end part of the ring in a radial direction. SOLUTION: A turbine stage in a turbomachine is provided with a wheel attached to an inside of a ring supported by a turbine casing, and a nozzle positioned at an upstream of the wheel. The nozzle includes an annular fixing rim fixed on the turbine casing. The seal is provided by a radial annular sheet between an outside rim of the nozzle and an upstream end part of the ring. The annular sheet includes an intermediate annular part isolated form the outside rim of the nozzle in an axial direction and supporting the upstream end part of the ring in an axial direction, and support a downstream surface of the outside rim of the nozzle in the axial direction. COPYRIGHT: (C)2009,JPO&INPIT
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