发明名称 |
DOVETAIL STRUCTURE OF FAN |
摘要 |
The invention provides a dovetail structure of a fan which attaches the fan 20 having an inlet hub diameter smaller than an outlet hub diameter to a portion around a discoid disc 10 rotationally driven by a turbine. The disc 10 has a plurality of main dovetail grooves 12 extending in parallel to an axis 1 of a rotation axis from a leading edge to a trailing edge thereof. The fan 20 has a main dovetail portion 22 fitted to the main dovetail groove 12, and a sub engagement portion 24 for supporting a front centrifugal force. Further, the dovetail structure is provided with a spin cone 30 engaging with the sub engagement portion 24 so as to be capable of transmitting the front centrifugal force to the disc 10.
|
申请公布号 |
US2007217915(A1) |
申请公布日期 |
2007.09.20 |
申请号 |
US20070680010 |
申请日期 |
2007.02.28 |
申请人 |
ISHIKAWAJIMA-HARIMA HEAVY INDUSTRIES CO., LTD. |
发明人 |
FUJIMURA TETSUJI;OKA TAKASHI |
分类号 |
F01D5/30 |
主分类号 |
F01D5/30 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|