Torque sensitive pitch lock
    3.
    发明授权
    Torque sensitive pitch lock 失效
    扭矩敏感音调锁

    公开(公告)号:US3895884A

    公开(公告)日:1975-07-22

    申请号:US48602374

    申请日:1974-07-05

    发明人: ANDREWS MERRITT B

    摘要: This invention is concerned with pitch lock of the variable pitch fan blades of a propulsor whose pitch is varied by a rotary type actuator and where the pitch lock input signal is manifested by a negative torque reaction imparted by the blades.

    摘要翻译: 本发明涉及一种推进器的可变桨距风扇叶片的俯仰锁定,该推进器的间距由旋转式致动器改变,并且俯仰锁定输入信号由叶片施加的负扭矩反作用力表现。

    Pitch change actuator for a variable pitch fan propulsor
    5.
    发明授权
    Pitch change actuator for a variable pitch fan propulsor 失效
    用于变桨距风扇推进器的变桨执行机构

    公开(公告)号:US3893789A

    公开(公告)日:1975-07-08

    申请号:US33433473

    申请日:1973-02-21

    发明人: ANDREWS MERRITT B

    IPC分类号: F01D7/00 B63H3/02 B64C11/32

    摘要: Blade angle of a variable pitch ducted fan is varied by transmitting a rotary pitch change mechanical signal across a rotating boundary by a differential gear train for driving a harmonic torque amplifier operatively connected to the root of the fan blades. A one-way rotary device cooperating with the input signal serves to obtain pitch lock.

    摘要翻译: 通过用于驱动可操作地连接到风扇叶片的根部的谐波扭矩放大器的差动齿轮系传递旋转间距变化机械信号,从而改变变桨距风扇的叶片角度。 与输入信号配合的单向旋转装置用于获得音调锁定。