发明名称 |
PROPROTOR BLADE WITH LEADING EDGE SLOT |
摘要 |
A proprotor blade (27a, 27b, 127a, 127b) having a fixed, spanwise, leading edge slot (215) located in at least the inboard portion of the proprotor is disclosed. The slot (215) is formed by a selectively shaped slat (217) disposed in a selectively shaped recessed area (219) located at the leading edge (202) of the main portion of the proprotor blade. The slot (215) is selectively shaped so that a portion of the airflow over the lower airfoil surface of the proprotor blade is diverted between the main portion of the proprotor blade and the slat (217) and exits at the upper airfoil surface of the proprotor blade. The present invention may be used on both military-type tiltrotor aircraft (11) and civilian-type tiltrotor aircraft (111) with only minor variations to accommodate the different shapes of the proprotor blades.
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申请公布号 |
CA2505007(C) |
申请公布日期 |
2010.05.11 |
申请号 |
CA20032505007 |
申请日期 |
2003.01.23 |
申请人 |
BELL HELICOPTER TEXTRON INC. |
发明人 |
ROBERTSON, DANIEL B.;SMITH, DUDLEY E.;HOLLIMON, CHARLES L.;NARRAMORE, JIMMY C.;MULLINS, ROBERT B. |
分类号 |
B64C11/18;B64C11/16;B64C11/20;B64C21/02;B64C27/467;B64C27/473;B64C29/00 |
主分类号 |
B64C11/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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