| 摘要 |
PROBLEM TO BE SOLVED: To improve stress resistance resistant to a centrifugal load generated by a rotary element by connecting a support ring resistant to centrifugal force acting on a rotor to a member to carry air foil in the rotor to receive the centrifugal force at rotating time. SOLUTION: A rotor assembly arranged inside a gas turbine engine has a turbine rotor disk 17 connected to a rotatable shaft installed in an engine. By the way, plural air foil separate from each other in the circumferential direction, that is, turbine blades 15 are added to the rotor disk 17. A hub part 20 is formed in a central part of the rotor disk 17, and this hub part 20 is connected to a pair of support ring members 18 and 19 adjacently arranged in this. On the other hand, the hub part 20 is formed of a shaft directional thick rim part 21, a radial directional inside base part 24 and a thin web part 22 extending in the radial direction between these.
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