| 摘要 |
PROBLEM TO BE SOLVED: To provide a turbine rotor capable of coping with both of improved processibility and appropriate stress balance of the turbine rotor having a rotor hook and rotor neck with an insertion structure to an inverted Christmas tree type turbine blade fitting section having the blade hook and blade neck. SOLUTION: The turbine rotor has the rotor hook and rotor neck with an insertion structure to the reverse christmas tree type turbine blade fitting section having the blade hook in which the number of hooks n is n≥3 and blade neck. A hook projected section of a rotor most-inner peripheral hook is formed in a recessed shape in a circumferential direction rather than its tangential line against a tangential line which combines a hook projected section of the (n-1)th hook and a hook projected section of the (n-2)th hook from the rotor most outer peripheral hook. COPYRIGHT: (C)2008,JPO&INPIT
|
