Wing-wheel counter according to the single-beam measuring principle with improved sensitivity and control effect

摘要

The invention provides for a single jet liquid meter (10) comprising a measurement chamber (12) connected to an injector (20) and an ejector (22) and equipped with a turbine (24) having a plurality of blades (28), two consecutive blades being disposed at an angle beta , the measurement chamber having two end walls (14,30) opposite to each other and perpendicular to the axis of said chamber. One end wall (30) is constituted by a plate equipped with an even number of ribs, n, greater than four, projecting in the chamber (12) and equally distributed in two sets, two consecutive ribs of the same set are disposed at an angle alpha which is determined by the following conditions: MATH MATH MATH where I is an integer value greater or equal to zero. IMAGE