Patent ID: 6514038
Filing Date: 2003-02-04
Classification: F01D,F02C,F05D

Abstract:
A turbine rotor comprising:a plurality of turbine blades each having a coolant path formed inside and permitting coolant to flow therein; a plurality of wheels having said plurality of turbine blades arranged annularly in peripheral portions thereof and forming said turbine rotor; annular members each arranged between adjacent wheels of said plurality of wheels; heat-resistant members provided on side surfaces of said wheels positioned at side surfaces of said annular members, said heat-resistant members each defining a part of a coolant recovery path in cooperation with said annular members; and wherein said annular members and said wheels are fixed by bolts passing through said annular members and wheels in a rotor axis direction to provide stacking surfaces where said annular members contact with said wheels, said annular members each having one of said stacking surfaces on both sides thereof.