DIRECT-FLOW GAS PRESSURE REGULATOR Russian patent published in 1999 - IPC

FIELD: automatic control equipment, in particular, for trunk gas pipes. SUBSTANCE: device has housing with closed inlet and coaxial output and input pipes, which are also coaxial to piston sensitive drive, which is equipped with radial cantilever and channels for supply of setting and output pressure levels, lock regulation unit, which has gate and saddle. In addition device has collector which is coaxial to gate and is designed as cylinder with holes for passing gas. Their cross section area alters depending on gate movement which is determined by required consumption level. One part of collector is connected to drive rigidly. Another part is related to mobile saddle which is spaced from collector along axis and radius and is made from hard alloy with gasket around rest end. Diameter of gasket contact to collector is less than diameter of contact of saddle to gate. Surface of saddle which contacts to gas flow and gate is cone-shaped. Its cross section is designed as integral part of smooth shape of gas channel. EFFECT: possibility to keep increased requirements for gas tightness and service life. 2 dwg