LIQUID FLOWMETER Russian patent published in 1998 - IPC

FIELD: instrumentation engineering. SUBSTANCE: flowmeter case houses double-jet measuring mechanism consisting of sleeve with impeller, installed perpendicularly to longitudinal axis, and cover. Internal space of case is divided into four cavities and two channels by means of three partitions to form two flows of liquid being measured. First flow actuates impeller from one side and second flow, from other side, thus rotating it in one and the same direction and at the same time unloading the impeller supports from forces of interaction with flows. Two sealing rings laid in channels of sleeve and third partition made as washer adjacent with its end to sleeve bottom, provide for airtight separation of flows. EFFECT: high sensitivity and long service life, convenience in operation. 11 dwg