| 摘要 |
<p>[PROBLEMS] A fan rotor blade support structure that can, even when the hub/tip ratio of the fan rotor blade is 0.35 or less, prevent excessive stress in the root and a spin cone of a fan rotor blade by properly supporting centrifugal force at the front part of the fan rotor blade. [MEANS FOR SOLVING THE PROBLEMS] The fan rotor blade (73) has the root (73a) located at a rotary disk (75) side end and the tip (73b) located at the outer end in the radial direction of the rotary disk (75). The fan rotor blade extends from the root (73a) to the tip (73b). The root (73a) has a mounting part (93) mounted on the rotor blade fixing part (75a) of the rotary disk (75), and also has an extension part (95) extending from the mounting part (93) to the upstream side. The upstream end of the extension part (95) is a free end.</p> |
