PRESSURE REGULATOR Russian patent published in 1995 - IPC

FIELD: power engineering. SUBSTANCE: pressure regulator has hydraulically interconnected control member 1 whose valve also serves as a piston of the servo drive coupled with pipe line 2 for working steam, command device 3 which is used for control of control member, device 4 for providing hydraulic flexible feedback which moderates pressure rise in collector 6 for intermediate (command) pressure, sensitive member 5 for converting a pulse depending on changing of pressure, second control throttle 7 mounted upstream of collector 6 in branch pipe 8 of pipe line 2, device 9 (hydraulic gate) which prevents all diaphragms from non-flexible deformations and is arranged in the batcher tank and coupled with collector 6, pipe 10 of command pressure, third controlled throttle 11 mounted in branch pipe 8 upstream of pipe 10, first controlled throttle 12 mounted in branch pipe of device 4, and collector 13 of controlled pressure coupled with the aerator tank. EFFECT: enhanced reliability. 4 cl, 4 dwg