ASSEMBLY OF CONTROL DRIVES Russian patent published in 2009 - IPC B64C13/34 

FIELD: engines and pumps.

SUBSTANCE: invention relates to aircraft engineering, particularly to drives of control aerodynamic surfaces. Assembly of control drives comprises actuators, each consisting of the housing, control surface shaft, high-speed motor and reduction gear. Additionally, each actuator comprises moving toothed rack and toothed quadrant in mesh with the latter. Toothed quadrant is fitted on the control surface shaft, while reduction gear is additionally furnished with ball-and-screw gear wherein sliding nut engages aforesaid rack, while sliding screw is fitted on the helical gear output shaft. Note here that the number of helical gear stages does not exceed two.

EFFECT: simplified design.

2 cl, 4 dwg