GAS PRESSURE REGULATOR Russian patent published in 1996 - IPC

FIELD: automatic control of gas supply in boiler and other industrial houses. SUBSTANCE: device has housing 1, input chamber 2, output chamber 4, seat 5, diaphragm servo drive 6, which has setting unit and control chamber, output hollow rod 8 with valve 9. Excess chamber 7 of servo drive 6 is located in output chamber 4 and has base 10, compensating diaphragm 11 and protecting diaphragm 15, which are connected to rod 8 and base 10. Rod 8 contains channel for connection between seat chamber and excess chamber 7. Area under protecting diaphragm 15 is connected to output chamber through channel 3. When input pressure changes, pressure at rod is compensated. EFFECT: increased precision of stabilization of output pressure. 1 dwg