Flowmeter for liquids with cylindrical body - has conical projection facing flow and movement proportional to flow

摘要

The flowmeter has a cylindrical body completely immersed in the liquid, with a conical projection on its front side. It is movable with a certain clearance in a cage with at least three bars. The liquid is fed axially and flows in the space between the conical projection and the cage ring into the widening space between cage bars. Displacement of the cylindrical body is the measure for the flow. The cage bars (17) are sloping (25) at their ends facing the liquid inflow. The slope ends before the cage inside space whose dia. at the inflow side is smaller than at the outflow side.