Importance

Loading Importance Indicators...

Abstract

A steam turbine includes: a rotor shaft including a shaft core and a disk portion fixed to the shaft core and that expands toward a radially outer side in the shaft core; rotor blade rows that are fixed to an outer periphery of the disk portion and arranged in an axial direction in which the shaft core extends; a stator vane row adjacent to an upstream side of the rotor blade row in the axial direction for each of the plurality of rotor blade rows; a gap flow passage that extends toward a radially inner side from a steam main flow passage that extends in the axial direction; and a communication passage including a first end that communicates with the gap flow passage and a second end that communicates with a space where steam with higher pressure than pressure of the steam inside the gap flow passage exists.

Loading the Abstract Image...

First Claim