PRESSURE REGULATOR Russian patent published in 1997 - IPC

FIELD: hydraulics. SUBSTANCE: pressure regulator has housing, spring-loaded stop- control member interposed between the inlet, outlet and control spaces inside the housing, and throttle interposed between the inlet and control spaces. The control space is in communication with a drain through either an auxiliary spring-loaded stop-control member made up as a flexible diaphragm provided with a throttle for supplying fluid from one side or through an additional solenoid stop-control member. The above- diaphragm space is connected with the inlet space through a throttle. A hydraulic distributor or a solenoid hydraulic valve may be used as the additional stop- control member. EFFECT: enhanced reliability. 2 cl, 1 dwg