초록 ▼

A drive system for high-lift devices on aircraft having two power drive units, one at each end of the connecting torque tube system, so as to force sum the outputs. A one-way brake always insures against inadvertent retraction of the device but allows extension. An asymmetrical protective device pre

A drive system for high-lift devices on aircraft having two power drive units, one at each end of the connecting torque tube system, so as to force sum the outputs. A one-way brake always insures against inadvertent retraction of the device but allows extension. An asymmetrical protective device prevents the high-lift device from an asymmetrical condition even after a combined power loss and mechanical failure of the torque tube. The power drive units consist of hydraulic motors driving through a gear box and a no-back brake combination and are controlled by a servo valve.

대표청구항 ▼

A drive system for a high-lift device on an aircraft consisting of at least two independent segments comprising: first and second motors having first and second brakes releasable with the application of power; a first differential gear box which sums both the force and speed of two inputs connected

A drive system for a high-lift device on an aircraft consisting of at least two independent segments comprising: first and second motors having first and second brakes releasable with the application of power; a first differential gear box which sums both the force and speed of two inputs connected to the output of said first and second motors having first and second brakes to form a first drive unit; third and fourth motors having third and fourth brakes releasable with the application of power; a second differential gear box which sums both force and speed of two inputs located remote from said first differential gearbox and connected to the output of said third and fourth motors having third and fourth brakes to form a second drive unit; a torque tube connected between the outputs of said first and second drive units so as to form an open loop drive, driven from each end; means connected between said torque tube and said high-lift device segments for extending and retracting said high-lift device segments as a result of rotation of said torque tube; at least one power source connected to said first and second drive units; and means to control said power source.