AIR-OPERATED ACTUATOR WITH FLUIDIC MOTOR Russian patent published in 2005 - IPC

FIELD: valving engineering.

SUBSTANCE: actuator comprises electropneumatic control device, link-screw rotating gear, and fluidic motor with the reduction gear. The fluidic motor has housing, lid, rotor lid, rotor with nozzles secured to the shaft, branch pipes for supplying gas, and labyrinth seals for the shaft. The seals are set in the sleeves inside the housing and lid of the reduction gear and made of a stack of rings whose inner diameters are bent in the direction of gas supply. The outer diameter is fit into the sleeve. The housing is provided with the passage that connects the inner surface of the housing with the space between the lids of the rotor and reduction gear.

EFFECT: enhanced reliability.

2 cl, 2 dwg