FIELD: machine engineering.
SUBSTANCE: operating gas pressure regulator (1) contains a flow channel (2) for gas; a movable slide valve (3) installed in the channel (2) to form a narrowing of the channel (2) to create a gas pressure drop from the supply pressure to the delivery pressure; a drive chamber (4) communicating with a downstream portion (2b) delimited by the first movable wall (5) which is connected to the valve (3) so that an increase in delivery pressure causes a corresponding displacement of the valve (3), resulting in a decrease in the narrowing cross-section, and vice versa; an elastic element (8) designed to counteract the force of the gas pressure, affecting the first movable wall (5) by applying a predetermined force to it tending to displace the valve (3) so as to increase the narrowing cross-section and a compensation chamber (6) filled with compensation gas and delimited by the second movable wall (7) connected to the valve (3) so as to ensure possibility of transferring pressure force of the compensation gas to the valve (3). When the regulator is in operation, the compensation gas pressure is constantly controlled in accordance with the specified supply pressure.
EFFECT: increased accuracy and speed of gas regulation.
12 cl, 2 dwg
