GAS DRIVE WITH EFFICIENT SELECTOR VALVE Russian patent published in 2015 - IPC F15B9/08 F16K31/124 

FIELD: machine building.

SUBSTANCE: gas drive with efficient selector valve contains movable case with cylindrical chamber, piston with rod to divide said chamber into auxiliary chamber communicated with gas source on rod side and working chamber on opposite side, selector valve with inlet and outlet control valves arranged aligned with cylindrical chamber to separate working chamber from gas source by inlet seat and inlet gate, from atmosphere by outlet seat and outlet gate coupled with inlet gate, follower located at piston rod side interacting kinematically via the outlet seat made at the piston rod side with outlet gate, double-side control device with moving link. The inlet gate is rigidly connected with the follower, the inlet seat is permanently connected by channel in this follower with the work cavity, and outlet gate is connected kinematically directly with movable link of the control device.

EFFECT: higher reliability.

2 cl, 2 dwg