发明名称 |
HELICOPTER BVI NOISE REDUCING METHOD AND DEVICE |
摘要 |
The present method is characterized by providing the rotor blade with a tab 3, which can advance and retreat with respect to rear of rotating direction of the rotor blade between a position where the tab protrudes from a trailing edge of the rotor blade and a position where the tab does not, and providing an actuator 4, which advances and retreats the tab 3, and operating the actuator 4 so that the tab advances and retreats in response to rotating timing of the rotor blade 2, when reducing the BVI noise of the rotor blade of a helicopter.
Thus, the BVI noise of a helicopter can be reduced effectively.
|
申请公布号 |
EP1666355(A1) |
申请公布日期 |
2006.06.07 |
申请号 |
EP20030818545 |
申请日期 |
2003.08.29 |
申请人 |
KAWADA INDUSTRIES, INC.;JAPAN AEROSPACE EXPLORATION AGENCY |
发明人 |
TANABE, YASUTADA;AKASAKA, TAKESHI;SAITO, SHIGERU;KOBIKI, NOBORU |
分类号 |
B64C27/00;B64C27/473;B64C27/615;(IPC1-7):B64C27/473;B64C5/10 |
主分类号 |
B64C27/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|