发明申请
- 专利标题: Reaction drive rotor/wing variable area nozzle
- 专利标题(中): 反应驱动转子/翼变区喷嘴
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申请号: US11387189申请日: 2006-03-22
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公开(公告)号: US20090206208A1公开(公告)日: 2009-08-20
- 发明人: Dennis K. Kennedy , Neal W. Muylaert , William J. Bigbee-Hansen
- 申请人: Dennis K. Kennedy , Neal W. Muylaert , William J. Bigbee-Hansen
- 专利权人: The Boeing Company
- 当前专利权人: The Boeing Company
- 主分类号: B64C27/24
- IPC分类号: B64C27/24 ; B64C27/467 ; B64C27/18
摘要:
In an exemplary variable area nozzle, a fixed duct section has an inlet and an outlet oriented approximately perpendicular to the inlet. A controllable nozzle member is disposed adjacent the outlet of the fixed duct section. The controllable nozzle member has an area that is adjustable to maintain a substantially constant nozzle pressure ratio. The controllable nozzle member may include first and second flap doors hinged and pivotable in opposite directions between an open position and a closed position and that also may be hinged and pivotable in a same direction so thrust from gas exiting the nozzle is vectorable. When disposed in rotor tips of an aircraft capable of rotary wing flight and fixed wing flight, the variable area nozzle may maintain a substantially constant nozzle pressure ratio near an optimized nozzle pressure ratio as the aircraft transitions from rotary wing flight to fixed wing flight.
公开/授权文献
- US07837141B2 Reaction drive rotor/wing variable area nozzle 公开/授权日:2010-11-23