|
US3713750A
(en)
*
|
1970-12-07 |
1973-01-30 |
Us Navy |
Circulation control rotor system
|
|
US3883266A
(en)
*
|
1973-09-24 |
1975-05-13 |
Jr Herman A Soulant |
Differential lift control by synchronous resonant excitation of air column in helicopter rotor
|
|
US4630997A
(en)
*
|
1981-11-24 |
1986-12-23 |
Fondation Cousteau |
Apparatus for producing a force when in a moving fluid
|
|
US4596512A
(en)
*
|
1984-08-23 |
1986-06-24 |
United Technologies Corporation |
Circulation controlled rotor blade tip vent valve
|
|
US4626171A
(en)
*
|
1984-10-25 |
1986-12-02 |
United Technologies Corporation |
Rotor blade construction for circulation control aircraft
|
|
US4655685A
(en)
*
|
1985-12-16 |
1987-04-07 |
United Technologies Corporation |
Helicopter main rotor blade having a short span slot near the tip end
|
|
US4966526A
(en)
*
|
1989-07-13 |
1990-10-30 |
United Technologies Corporation |
Mechanically actuated slot for circulation control rotor
|
|
US5813625A
(en)
*
|
1996-10-09 |
1998-09-29 |
Mcdonnell Douglas Helicopter Company |
Active blowing system for rotorcraft vortex interaction noise reduction
|
|
US6543719B1
(en)
|
1997-06-05 |
2003-04-08 |
Mcdonnell Douglas Helicopter Co. |
Oscillating air jets for implementing blade variable twist, enhancing engine and blade efficiency, and reducing drag, vibration, download and ir signature
|
|
US6234751B1
(en)
|
1997-06-05 |
2001-05-22 |
Mcdonnell Douglas Helicopter Co. |
Oscillating air jets for reducing HSI noise
|
|
US6821090B1
(en)
*
|
1997-06-05 |
2004-11-23 |
Mcdonnell Douglas Helicopter Company |
Gust alleviation/flutter suppression device
|
|
US6092990A
(en)
*
|
1997-06-05 |
2000-07-25 |
Mcdonnell Douglas Helicopter Company |
Oscillating air jets for helicopter rotor aerodynamic control and BVI noise reduction
|
|
US6476534B1
(en)
|
2000-08-08 |
2002-11-05 |
General Dynamics Advanced Technology Systems, Inc. |
Permanent magnet phase-control motor
|
|
US6478541B1
(en)
|
2001-08-16 |
2002-11-12 |
The Boeing Company |
Tapered/segmented flaps for rotor blade-vortex interaction (BVI) noise and vibration reduction
|
|
AU2003210634A1
(en)
|
2003-01-23 |
2004-08-23 |
Bell Helicopter Textron Inc. |
Proprotor blade with leading edge slot
|
|
US7156609B2
(en)
*
|
2003-11-18 |
2007-01-02 |
Gck, Inc. |
Method of making complex twisted blades with hollow airfoil cross section and the turbines based on such
|
|
US7644887B2
(en)
*
|
2007-02-22 |
2010-01-12 |
Johnson Edward D |
Yaw control system and method
|
|
US9004394B2
(en)
*
|
2010-09-09 |
2015-04-14 |
Groen Brothers Aviation, Inc. |
Mission-adaptive rotor blade with circulation control
|
|
CN102323440A
(zh)
*
|
2011-06-03 |
2012-01-18 |
清华大学 |
直升机二轴式空速检测系统
|
|
US9637229B2
(en)
|
2011-07-11 |
2017-05-02 |
Groen Aeronautics Corporation |
Mission-adaptive rotor blade with circulation control
|
|
US9090343B2
(en)
*
|
2011-10-13 |
2015-07-28 |
Sikorsky Aircraft Corporation |
Rotor blade component cooling
|
|
RU2569233C1
(ru)
*
|
2014-10-15 |
2015-11-20 |
Российская Федерация в лице Министерства промышленности и торговли Российской Федерации (Минпромторг России) |
Способ управления реактивным приводом несущего винта вертолета и устройство для его осуществления
|
|
JP6980962B2
(ja)
|
2017-04-26 |
2021-12-15 |
国立研究開発法人宇宙航空研究開発機構 |
メインロータブレード及びヘリコプタ
|
|
RU2748769C1
(ru)
*
|
2020-11-09 |
2021-05-31 |
Олег Леонидович Федоров |
Устройство реактивного привода несущего винта
|
|
CN113335509B
(zh)
*
|
2021-06-03 |
2022-07-01 |
南京航空航天大学 |
一种直升机桨叶的流动控制方法
|