Aspirating spray nozzle

Claim 1

A BURNER NOZZLE COMPRISING AXIAL SWIRL CHAMBER MEANS, SECOND CHAMBER MEANS OF SUBSTANTIALLY CYLINDRICAL CONFIGURATION DISPOSED FORWARDLY WITH RESPECT TO SAID SWIRL CHAMBER MEANS, SAID SWIRL CHAMBER MEANS HAVING AT ITS FORWARD END AXIAL DISCHARGE ORIFICE MEANS WITH THE SURFACE OF SAID DISCHARGE ORIFICE MEANS BEING CURVED AND TAPERED OUTWARDLY IN THE DIRECTION OF SAID SECOND CHAMBER MEANS AND BEING IN UNOBSTRUCTED COMMUNICATION WITH SAID SECOND CHAMBER MEANS FOR DISCHARGING A SWIRLING DISTINCTLY CONICAL OIL SPRAY FROM SAID SWIRL CHAMBER MEANS THROUGH SAID SECOND CHAMBER MEANS WITHOUT INTERFERENCE OR OBSTRUCTION AND WITHOUT SUBSTANTIAL CONTACT WITH SAID NOZZLE SO THAT SAID CONICAL OIL SPRAY ASPIRATES A STREAM OF AIR THROUGH SAID SECOND CHAMBER MEANS FROM THE REARWARD END TO THE FORWARD END THEREOF, AIR PASSAGEWAY MEANS OPEN AT ONE END TO THE EXTERIOR OF SAID NOZZLE AND OPEN AT THE OTHER END IN THE DIRECTION OF SAID SECOND CHAMBER MEANS FOR CHANNELING AIR INTO SAID SECOND CHAMBER MEANS, SUBSTANTIALLY FLAT SURFACE MEANS CONTIGUOUS WITH SAID CURVED AND TAPERED SURFACE OF SAID DISCHARGE ORIFICE MEANS LYING ON A PLANE SUBSTANTIALLY NORMAL TO THE LONGITUDINAL AXIS OF SAID NOZZLE EXTENDING LATERALLY OUTWARDLY FROM SAID DISCHARGE ORIFICE MEANS AND TERMINATING WITH FIRST FLOW DEFLECTING MEANS HAVING FIRST RELATIVELY SHARP EDGE MEANS FACING SAID AIR PASSAGEWAY MEANS IN THE REGION THEREOF NEAR SAID SECOND CHAMBER MEANS FOR INDUCING A VENA CONTRACTA IN SAID ASPIRATED AIR STREAM DOWNSTREAM FROM SAID FIRST SHARP EDGE MEANS AND IN THE REGION OF SAID OIL SPRAY, AND SECOND FLOW DEFLECTING MEANS HAVING SECOND RELATIVELY SHARP EDGE MEANS WHICH IS EXPOSED TO SAID AIR PASSAGEWAY MEANS IN THE REGION THEREOF NEAR SAID SECOND CHAMBER MEANS AND OPPOSITE FROM SAID DISCHARGE ORIFICE MEANS FOR INDUCING A VENA CONTRACTA IN SAID ASPIRATED AIR STREAM DOWNSTREAM FROM SAID SECOND SHARP EDGE MEANS AND IN THE REGION OF SAID OIL SPRAY, SAID CYLINDRICAL SECOND CHAMBER MEANS HAVING A DIAMETER WHICH IS SUBSTANTIALLY GREATER THAN THE LENGTH THEREOF AND WHICH IS SUFFICIENTLY LARGE FOR THE CONICAL SPRAY FROM THE SWIRL CHAMBER MEANS TO PASS THROUGH WITHOUT SUBSTANTIAL CONTACT WITH THE WALLS OF SAID SECOND CHAMBER MEANS AND FOR EACH AIR STREAM VENA CONTRACTA TO DEVELOP AROUND SAID CONICAL SPRAY.