Device for mixing two fluid streams

Claim 1

IN AN OIL BURNER, IN COMBINATION, A CYLINDRICAL SHELL HAVING AN OPEN END, FUEL-SUPPLY MEANS INCLUDING A TUBULAR NOZZLE EXTENDING SUBSTANTIALLY AXIALLY WITHIN SAID SHELL AND TERMINATING THEREWITHIN AHEAD OF SAID OPEN END, SAID NOZZLE HAVING AN OUTLET SPACED FROM SAID OPEN END FOR DISCHARGING A SUBSTANTIALLY CONICAL STREAM OF ATOMIZED FUEL TOWARD SAID OPEN END, MEANS FOR CREATING A GENERALLY AXIAL AIR FLOW IN SAID SHELL TOWARD SAID OPEN END, AND ANNULAR BAFFLE MEANS SPACEDLY SURROUNDING SAID NOZZLE WITH AN ANNULAR CLEARANCE IN THE PATH OF SAID AIR FLOW, SAID BAFFLE MEANS FORMING AT LEAST ONE SUBSTANTIALLY FRUSTOCONICAL CHANNEL DIVERGING FROM THE VICINITY OF SAID NOZZLE OUTWARDLY TOWARD SAID SHELL IN THE DIRECTION OF SAID OPEN END FOR SUBDIVIDING SAID AIR FLOW INTO AN INNER BRANCH THROUGH SAID CLEARANCE AND ALONG SAID NOZZLE ALLOWED TO MIX WITH SAID ATOMIZED FUEL IN THE VICINITY OF SAID OUTLET OF SAID NOZZLE AND INTO AN OUTER BRANCH DIVERTED THROUGH SAID CHANNEL TOWARD SAID SHELL FOR MIXTURE WITH SAID CONICAL STREAM AT A LOCATION FORWARDLY OF SAID OUTLET TOWARD SAID OPEN END, SAID BAFFLE MEANS COMPRISING AN INNER BAFFLE AND A PLURALITY OF OUTER BAFFLES, AT LEAST SAID OUTER BAFFLES HAVING SUBSTANTIALLY FRUSTOCONICAL SURFACES FORMING SAID CHANNEL THEREBETWEEN, SAID INNER BAFFLE BEING DISKSHAPED AND DISPOSED IN A PLANE TRANSVERSE TO THE NOZZLE AXIS WHILE BEING PROVIDED WITH AT LEAST ONE CIRCULAR ARRAY OF PERFORATIONS TRANSVERSE TO THE AXIS OF SAID SHELL AND IN THE PATH OF SAID AIR FLOW FOR PASSING INDIVIDUAL AXIAL STREAMS THEREOF THROUGH SAID PERFORATIONS IN THE DIRECTION OF SAID OPEN END.