GAS METER-FLOWMETER Russian patent published in 1997 - IPC

FIELD: measurement of consumption of gas coming to user under low pressure (from 80! 0 mm Hg and higher). SUBSTANCE: gas meter-flowmeter has case with inlet and outlet branch pipes between which inlet intermediate and outlet spaces are located, base made fast to support with conical surface, sensitive element in the form of rotor with shaft which carries turbine and register. Intermediate space housing turbine installed with circular clearance having tangent holes is located between base and support. Inlet space is connected to intermediate one through holes in base, circular clearance and tangent holes of turbine. Rotor of sensitive element is manufactured in the form cone and is mounted in outlet space on conical surface of support for axial movement. Intermediate space communicates with outlet one through holes and axially symmetric holes made in support. EFFECT: increased functional reliability and accuracy of gas meter-flowmeter. 1 dwg