Moving blade of turbine

Abstract

Abstract PURPOSE:To enable to surely support the thrust applied on a turbine blade by a structure wherein stoppers to prevent a blade root part from shifting to the downstream side of steam are respectively formed on the downstream side of a steam of a turbine wheel and on the upstream side of the blade root part. CONSTITUTION:A pair of blade root parts 20 are axially formed parallel to each other on the underside of a solid part 19 arranged at the inside of a turbine blade 15 and at the same time a shelf 21 is formed at the steam inflowing side of the blade root parts 20. On the other hand, wheel grooves 24, to which the blade root parts 20 are fitted, are axially formed at fixed intervals along the outer periphery of a turbine wheel 23. In addition, positioning stoppers 22 are formed on the underside of the blade root parts 20. Further, a wheel groove part stopper 25 is formed at the downstream side end of steam of the turbine wheel 23 and at the same time grooves 29, in which the positioning stoppers 22 are received, are provided at the steam inflowing side on the bottom of the wheel grooves 24.

Inventors

• 👤 Toshiyuki Harada
• 👤 原田　稔之

Bibliographic Details