Honeywell International Inc.
ROTARY PISTON WATER METER

Abstract:

A positive displacement fluid flow meter that may have a rotary piston that rotates inside a chamber as a fluid flows through it. The rotating piston may create fixed volume discrete parcels from the passing fluid. The piston may be buoyant relative to the fluid flowing through the meter. Buoyancy of the piston may reduce friction and noise in the meter to result in a more accurate fluid flow measuring meter.