| 发明名称 | Fan blade with sheath | ||
| 摘要 | A fan blade includes an airfoil with a leading edge and a trailing edge in a chordwise direction, a root and a tip in a spanwise direction; and a sheath with a solid portion to cover the leading edge and first and second flanks extending in the chordwise direction to bond to the pressure and suction sides of the airfoil, respectively. The dimensions of the sheath are varied with respect to the spanwise direction of the blade. | ||
| 申请公布号 | US8858182(B2) | 申请公布日期 | 2014.10.14 |
| 申请号 | US201113170752 | 申请日期 | 2011.06.28 |
| 申请人 | United Technologies Corporation | 发明人 | Schwarz Frederick M.;Weisse Michael A.;Graves William R. |
| 分类号 | F01D5/14;F01D5/28;F02K3/06 | 主分类号 | F01D5/14 |
| 代理机构 | Kinney & Lange, P.A. | 代理人 | Kinney & Lange, P.A. |
| 主权项 | 1. A fan blade comprising: an airfoil with a leading edge and a trailing edge in a chordwise direction, a root and a tip in a spanwise direction; and a sheath with a solid portion to cover the leading edge and first and second flanks extending in the chordwise direction to bond to the pressure and suction sides of the airfoil, respectively, wherein the dimensions of the sheath are nonlinearly varied with respect to the spanwise direction of the blade between 70% and 80% along the spanwise direction from the root; wherein one of the first and second flanks increases to a maximum length that is located between 70% and 80% along the spanwise direction from the root. | ||
| 地址 | Hartford CT US | ||