Arrangement in an apparatus for the supply and atomizing of a liquid in a gaseous medium

Claim 1

IN AN APPARATUS FOR INTRODUCING A LIQUID INTO A FLOWING GASEOUS DUST-LADEN MEDIUM COMPRISING A TUBULAR SUPPLY CONDUIT FOR THE DUST-LADEN GASEOUS MEDIUM HAVING AN OPEN END, AN EXPANSION CHAMBER SURROUNDING SAID CONDUIT ADJACENT THE OPEN END THEREOF, SAID EXPANSION CHAMBER HAVING SIDE WALLS CONVERGING IN THE DIRECTON OF FLOW OF SAID DUST-LADEN MEDIUM AND TERMINATING IN AN INWARDLY PROJECTING SHOULDER TRANSVERSE TO THE DIRECTION OF FLOW OF SAID GASEOUS MEDIUM AND DEFINING A DISCHARGE ORIFICE, A DIVERGING DUCT CONNECTED TO AND EXTENDING FROM SAID DISCHARGE ORIFICE, A LIQUID SUPPLY MEANS MOUNTED IN SAID EXPANSION CHAMBER ALONG THE INNER PERIPHERY THEREOF AND SURROUNDING SAID SUPPLY CONDUIT TO FORM A CONTINUOUS LIQUID FILM COVERING THE ENTIRE CONVERGING INNER SURFACE OF THE EXPANSION CHAMBER WHEREBY THE FLOW OF GASEOUS MEDIUM THROUGH SAID EXPANSION CHAMBER FROM SAID OPEN END OF THE SUPPLY CONDUIT TO SAID DISCHARGE ORIFICE CAUSES SAID FILM TO FLOW TOWARDS AND INTO SAID DISCHARGE ORIFICE EFFECTING ATOMIZATION OF SAID LIQUID AS SAID GASEOUS MEDIUM PASSES THROUGH SAID DISCHARGE ORIFICE; THE IMPROVEMENT INSURING PROPER ATOMIZATION OF SAID LIQUID AT SAID DISCHARGE ORIFICE, COMPRISING MEANS MOUNTING AT LEAST ONE SIDE WALL OF SAID CONVERGING EXPANSION CHAMBER AND THE TERMINAL SHOULDER THEREOF, FOR RELATIVE TRANSVERSE MOVEMENT TOWARD AND AWAY FROM THE OPPOSITE SIDE WALL AND THE TERMINAL SHOULDER THEREOF, AND WALL DISPLACEMENT MEANS COOPERATING WITH SAID SIDE WALL TO VARY THE AREA OF SAID DISCHARGE ORIFICE SO AS TO MAINTAIN A UNIFORM GAS VELOCITY AT THE DISCHARGE ORIFICE THEREBY CAUSING UNIFORM ATOMIZATION OF SAID LIQUID AT SAID DISCHARGE ORIFICE.