| 摘要 |
An impeller for a turbine includes an impeller body formed by alternately stacking and fixing two or more types of disk blades (A), a base plate (B), and a rotating shaft (C). A plurality of pressed vane sections (11) projecting from one surface are formed on the base plate (10) of each disk blade (A), and recessed spaces (12) are formed in the pressed vane sections (11), respectively. The projecting rear sections (11a) of the pressed vane sections (11) are affixed to the other surface of the base plate (10) of the adjacent disk blade (A), and disposed in the recessed spaces (12) of the pressed vane sections (11) of the adjacent disk blade (A) in the mutually crossing direction. A part of a working gas is moved in the recessed spaces (12), and moved forward in the rotating direction over the projecting rear sections (11a). |
