| 发明名称 |
AIRFOIL ASSEMBLY WITH SPACER AND TIE-SPAR |
| 摘要 |
An airfoil assembly includes at least one airfoil that has a hollow interior. First and second platforms are disposed between the airfoil. At least one tie-spar extends along an axis through the first platform, the hollow interior of the airfoil, and the second platform. There is a thermal expansion difference between a thermal expansion of the tie-spar in the axial direction and the combined thermal expansion of the airfoil and the first and second platform in the axial direction. At least one spacer portion is arranged on the tie-spar. The spacer portion has a thermal expansion in the axial direction that is greater than the thermal expansion difference such that the spacer portion maintains the tie-spar under tension and clamps the first and second platforms on the airfoil. |
| 申请公布号 |
US2016090851(A1) |
申请公布日期 |
2016.03.31 |
| 申请号 |
US201514838412 |
申请日期 |
2015.08.28 |
| 申请人 |
United Technologies Corporation |
发明人 |
Carr Jesse M.;Dube Bryan P. |
| 分类号 |
F01D9/04 |
主分类号 |
F01D9/04 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An airfoil assembly comprising:
at least one airfoil that has a hollow interior; first and second platforms between which the airfoil is disposed; at least one tie-spar that extends along an axis through the first platform, the hollow interior of the airfoil, and the second platform, and there is a thermal expansion difference D between a thermal expansion T1 of the tie-spar in the axial direction and a combined thermal expansion T2 of the airfoil and the first and second platforms in the axial direction; and at least one spacer portion arranged on the tie-spar, and the spacer portion has a thermal expansion T3 in the axial direction that is greater than the thermal expansion difference D such that the spacer portion maintains the tie-spar under tension and clamps the first and second platforms on the airfoil. |
| 地址 |
Hartford CT US |
