公开(公告)号：US08636473B2

公开(公告)日：2014-01-28

申请号：US13933303

申请日：2013-07-02

Applicant: Bell Helicopter Textron Inc.

Inventor： John E. Brunken, Jr.

IPC: B64C11/00

CPC classification number: B64C27/605 ,  B64C27/10 ,  B64C29/0033

Abstract: A rotor system for a rotorcraft having at least one rotor blade pair operably associated with a differential pitch assembly operably for controlling a pitch angle of an upper rotor blade and the lower rotor blade in the rotor blade pair. Operation of the differential pitch assembly changes the pitch of the upper rotor blade more severely than the pitch of the lower rotor blade. As such, the rotor system is configured to provide optimum pitch of the upper and lower rotor blades during a helicopter mode and an airplane mode.

Abstract translation: 一种用于旋翼飞机的转子系统，其具有可操作地与差动桨距组件相关联的至少一个转子叶片对，可操作地用于控制转子叶片对中的上转子叶片和下转子叶片的俯仰角。 差动螺距组件的操作使上转子叶片的间距比下转子叶片的间距更严重。 因此，转子系统构造成在直升机模式和飞行模式期间提供上下转子叶片的最佳桨距。