| 发明名称 | Lightweight shrouded fan blade | ||
| 摘要 | A gas turbine engine according to an exemplary aspect of the present disclosure includes, among other things, a fan section including a fan with a plurality of fan blades rotatable about an axis. Each of the plurality of fan blades includes a mid-span shroud and a speed change device in communication with the fan. | ||
| 申请公布号 | US9506353(B2) | 申请公布日期 | 2016.11.29 |
| 申请号 | US201213719821 | 申请日期 | 2012.12.19 |
| 申请人 | UNITED TECHNOLOGIES CORPORATION | 发明人 | Schwarz Frederick M.;Weisse Michael A.;Zysman Steven H. |
| 分类号 | F01D5/22;F04D29/32;F04D29/66;F04D25/02 | 主分类号 | F01D5/22 |
| 代理机构 | Carlson, Gaskey & Olds, P.C. | 代理人 | Carlson, Gaskey & Olds, P.C. |
| 主权项 | 1. A gas turbine engine comprising: a fan section including a fan with a plurality of fan blades rotatable about an axis, each of the plurality of fan blades includes a mid-span shroud including a first shroud member having a first bearing surface on a first side of each of the plurality of fan blades and a second shroud member having a second bearing surface on a second opposite side of each of the plurality of fan blades, wherein the first shroud member includes an elliptical cross section having a first minor axis at a mid-portion of the first shroud member that is smaller than a second minor axis adjacent the first bearing surface; and a speed change device in communication with the fan. | ||
| 地址 | Farmington CT US | ||