TACHOMETRIC FLOWMETER Russian patent published in 1996 - IPC

FIELD: measurement technology. SUBSTANCE: invention can be used to measure flow of liquids. Tachometric flowmeter has cylindrical case 1 which houses fairing 2 and primary converter 3. Fairing 2 is fabricated in the from of conical bushing having internal duct 4. Radial branch pipe 5 for installation of primary converter 3 is made in case 1. Fairing 2 is made fast to case 1 and is mounted coaxially to it. measurement passage 7 for overflow of part of main flow is formed between outer surface of fairing, inner wall of case 1 of flowmeter and case 6 of converter 3. Primary converter includes ring chamber 8 with sensitive element in the form of ball 9, jet swirler 10 and signal pickoff unit 11. EFFECT: improved operational reliability and efficiency. 4 cl, 3 dwg