INDIRECT ACTING REGULATOR OF GAS PRESSURE Russian patent published in 2009 - IPC G05D16/10 

FIELD: machine building.

SUBSTANCE: disclosed invention refers to hydraulic-pneumatic automatics and can be implemented for control of pressure of natural gas at outlet of gas-distributing stations. The indirect acting regulator of gas pressure consists of external and internal cylinder cases, cavity of inlet and outlet of gas arranged coaxially relative to each other, of sensitive element made in form of a piston, of cavity of command and output pressure, control body and of a rod. Also the control body is made in form of two split springs of compression and extension with valves rigidly connected between them with the rod; while cavities of command and outlet pressure of the sensitive element are equipped with pipes for gas supply.

EFFECT: simplification of design, facilitation of high accuracy, stability, and wide ranges of control of gas pressure.

2 dwg