SERVO DRIVE OF PIPELINE VALVES DRIVEN BY FLUID Russian patent published in 2015 - IPC F04B53/16 

FIELD: machine building.

SUBSTANCE: invention relates to fluid driven servo drive of the pipeline valve. Servo drive of the pipeline valve driven by fluid contains the base module with control valves, two installed opposite to each other linear actuators driven by fluid using the control valves, and mechanical converter between the linear actuators and connecting their sliders, at that output of the mechanical converter is connected with valve input. The servo drive is made as per package principle out of the individual components combined in single functional assembly in form of single module, two linear actuators and mechanical converter.

EFFECT: invention improves reliability and duration of the servo drive, reduces maintenance expenses.

12 cl, 11 dwg