| 发明名称 | Optimization of downstream open fan propeller position | ||
| 摘要 | A method and apparatus for controlling a propeller of a contra-rotation open fan (CROF) engine of an aircraft. A diameter of the propeller is set to be at a first diameter during at least a portion of a first flight condition of the aircraft. The diameter of the propeller is set to be at a second diameter, different from the first diameter, during at least a portion of a second flight condition of the aircraft. | ||
| 申请公布号 | US8821118(B2) | 申请公布日期 | 2014.09.02 |
| 申请号 | US200912643554 | 申请日期 | 2009.12.21 |
| 申请人 | The Boeing Company | 发明人 | Moore Matthew D.;Boren Kelly L.;Langtry Robin B. |
| 分类号 | F01D25/04;B64C11/48;B64C11/00;B64D27/02 | 主分类号 | F01D25/04 |
| 代理机构 | Yee & Associates, P.C. | 代理人 | Yee & Associates, P.C. |
| 主权项 | 1. A method for controlling a propeller of a contra-rotation open fan (CROF) engine of an aircraft, comprising: setting a diameter of a downstream propeller of the CROF engine to be at a first diameter during at least a portion of a first flight condition of the aircraft; and setting the diameter of the downstream propeller to be at a second diameter, different from the first diameter, during at least a portion of a second flight condition of the aircraft, wherein setting is accomplished using hydraulic force. | ||
| 地址 | Chicago IL US | ||