PNEUMATIC ROTARY MOTOR Russian patent published in 1997 - IPC

FIELD: mechanical engineering; pneumatic motors. SUBSTANCE: pneumatic rotary motor has stator with covers, rotor with projection and closer arranged in cylindrical spaces of stator, thus forming working chambers, and installed for rotation by means of gear-type synchronizing mechanism. Circular grooves are made on end face surfaces of rotor. Grooves communicate through bypass holes with sealing liquid supply channels arranged in end face covers of stator. Shaped bore is made on inner surface of stator in closer mounting zone. Closer has separating spring-loaded plate with travel limiter installed in closer slot for periodical engagement with outer surface of rotor whose projection is limited by two planes arranged in diameter. Bore is displaced through value of limited outlet of blade from closer slot. Direction of rotor rotation coincides with direction of closer rotation. EFFECT: enlarged operating capabilities. 1 dwg