PNEUMAHYDROMECHANICAL VALVE Russian patent published in 2008 - IPC F04B43/06 F16K17/00 

FIELD: engines and pumps.

SUBSTANCE: device is designed to be used in machine building for a dosed supply of aggressive, toxic, explosive and other fluid slam-containing and gaseous media. The valve consists of a body, a liquid intake chamber and a receiver filled with liquid and gas. The valve body and that of the receiver are rigidly coupled. Threaded holes are used for liquid intake and discharge. The liquid intake chamber is limited by a cover and an interchamber partition furnished with, at least, one hole through which the liquid supplied acts onto a seal rigidly attached to the movable axle. The said axle carries a rigidly fitted annular element with a ring-like part coupled with a flexible element acting, along the axle, onto a collar with a self-aligning curvilinear surfaces. The receiver body is furnished with pipelines incorporating valve gates to adjust liquid and air pressure.

EFFECT: expanded performances of the membrane chamber.

1 dwg