STEAM TURBINE

摘要

PROBLEM TO BE SOLVED: To provide a steam turbine for a high pressure range or an intermediate pressure range avoiding defects of former solutions. SOLUTION: A stress-relief slot (20) is disposed upstream of the first blade rotor row (15) in a deflection region (27) for reducing stress in a fastening slot (16) of a first rotor blade row (15) in a rotor (11). A heat shield (21) is disposed in a region of the stress-relief slot (20) for protecting the rotor (11) from high temperatures. COPYRIGHT: (C)2010,JPO&INPIT