STRAIGHT-THROUGH FLOWRATE REGULATOR Russian patent published in 1994 - IPC

FIELD: gas and liquid flowrate automatic control systems. SUBSTANCE: straight-through flowrate regulator has the body 1 with the input 2 and the output 3 ducts and with successively arranged in it narrowing unit 4 and the controlling member 5 of an elastic material, both forming together with walls of the body the control cavity 6. Two membrane chambers 7, 8 are provided in the body; the membranes of these chambers are rigidly connected one with another by the rod 9, having cross openings 10, and are loaded by the spring 11. One cavity of each membrane chamber is connected with a source of a flow, being controlled, respectively before and after the narrowing unit 4; the other cavity is joined with the atmosphere by the duct 15. The body 1 has the input 17 and the output 18 ducts for compressed air, connected with the control cavity 6 and with possibility of alternative joining - with the cross opening 10 of the rod 9. EFFECT: increased accuracy and enhanced reliability of the regulator. 1 cl, 1 dwg