CONTROL ACTUATOR UNIT Russian patent published in 1998 - IPC

FIELD: control actuators of aerodynamic surfaces of unmanned aircraft. SUBSTANCE: control actuator unit includes common housing 1 with four actuators mounted inside it; each actuator includes its won housing, partially turning shaft 3 of control surface, high-speed electric motor 6, multistage reduction gear and feedback sensor 7. Multistage reduction gear includes three types of gear trains arranged in series: input; bevel and cylindrical; output- two-wave train made according to symmetrical scheme. Housings of actuators are provided with special projections 25 and 26. Projections 25 are used for centering and securing with common housing 1; projections 26 are crimped by plates 27 forming additional support. EFFECT: reduction of constructional depth of actuators to level commensurable with diameter of electric motor, thus increasing passage area for gas duct of engine plant running inside unit. 2 dwg