CONTROL UNIT Russian patent published in 2009 - IPC F16K47/04 F16K1/12 F16K3/24 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to field of armature engineering, particularly to adjusting pipe valves, and is provided for apllication in energetics, in oil-and-gas industry. Control unit contains casing with outlet and inlet branches, hydraulically discharged control in the form of tubular hollow plunger, interlocked with drive arrangement, and leading cylinder. In the latter with ability of movement it is located hollow plunger. Casing from the side of outlet branch contains profiled insertion in area of outlet hole. This insertion is smoothly expanded to inner side of valve casing and forms with plunger common throttle -adjusting slot with ability of slot area changing at movement of plunger. On end external part of plunger from the side of outlet branch lengthwise travel of plunger there are implemented parallel grooves of square cross section. Outlet and inlet branches are implemented in the form of confuser and diffuser agreeably.

EFFECT: reliability enhancement of the device and operating characteristics improvement ensured by rate reduction of flow on annular part of plunger in throttling parallel grooves.

1 dwg