Patent ID: 6279598
Filing Date: 2001-08-28
Classification: B01F,E03C,Y10T

Abstract:
In an eductor for mixing first and second liquids and wherein the first liquid is in a main stream flowing through an air gap to a venturi tube downstream from the air gap, the improvement wherein:the venturi tube has an annular sharp edge in the main stream, thereby dividing the main stream into a primary stream flowing through the tube and a secondary stream around the primary stream and flowing around the tube;by venturi action, the venturi tube mixes the primary stream and the second liquid to form a mixture;the eductor includes an outlet section for combining the mixture and the secondary stream;a supply nozzle upstream of the air gap and a flow guide downstream of the air gap wherein:the flow guide is annular around the tube;the tube and the flow guide are in spaced telescoped relationship, and the flow guide includes:a first portion converging in a downstream direction at a first angle; anda second portion extending from the first portion and converging in a downstream direction at a second angle.