AMPLIFIER FOR PRESSURE REGULATOR OF INDIRECT ACTION Russian patent published in 1995 - IPC

FIELD: automatic control. SUBSTANCE: amplifier has housing 1 provided with chambers of supplying pressure 2, control pressure 3, and outlet pressure 4. Comparing sensor 5 with valve 6 is secured to housing 1 using cover 7. The set-point device has spring 8 and control member 9. Double-arm lever 11 is mounted on axle 10 inside housing 1. Valve 12, which interacts with seat 13, is secured to the one of the arms of the lever. The seat is mounted inside chamber 2 of supplying pressure. Hollow rod 14 having opening 15 and seat 16 is secured to the other arm of the lever. Separating sensor 17 is interposed between chambers 3 and 4. The center of the sensor is rigidly secured to the hollow rod and periphery of the sensor is coupled with housing 1. Spring 18 is interposed between double-arm lever 11 and housing 1. EFFECT: enhanced accuracy of amplifying. 1 dwg