PNEUMATIC DRIVE Russian patent published in 2012 - IPC F15B9/03 

FIELD: machine building.

SUBSTANCE: drive includes electric pneumatic control device, jet engine, reduction gear, rocker mechanism with outlet shaft, lead screw and leadscrew nut that is connected to rocker drive piece, drive outlet shaft position information device including magnetic reed switches, device for restricting the maximum value of transmitted drive moment with magnetic reed switches, as well as kinetic energy absorption device of movable parts of the drive, which includes thrust bearings and plate washers. Kinetic energy absorption device of movable parts of the drive is equipped with radial bearing installed in the drive housing; lead screw pin is installed in hole of radial bearing with possibility of axial movement; plate washers are located between thrust bearings, which are installed between pin and limit stop on the lead screw shank edge, and between plate washers and rings of thrust bearings there installed are steel safety rings. Magnetic reed switches of the outlet shaft position information device and device for restricting the maximum value of transmitted drive moment are equipped with movement mechanisms of steel screening shutters between rigidly installed constant magnets and reed switches.

EFFECT: enhanced reliability.

9 cl, 12 dwg