Burner for heavy fuels

Claim 1

IN A LIQUID FUEL BURNER, AN OPEN ENDED HOLLOW ANNULAR TUYERE HAVING A CLOSED END WALL, AND A SIDE WALL HAVING A PLURALITY OF FIXED SUBSTANTIALLY TANGENTIAL BLADES EXTENDING THROUGHOUT THE MAJOR PART OF SAID SIDE WALL AND FROMING INWARDLY CONVERGENT AIR PATHS, AN ENCLOSURE SURROUNDING SAID TUYERE, MEANS FOR SUPPLYING AN AIR CURRENT TO SAID ENCLOSURE AND THROUGH SAID AIR PATHS BETWEEN SAID BLADES TO ESTABLISH A VORTICAL AIR COLUMN IN SAID TUYER, FUEL SUPPLY MEANS ADJACENT THE CLOSED END WALL OF SAID TUYERE ADAPTED TO COMMUNICATE WITH THE VERTICAL AIR COLUMN WHEREBY SAID FUEL IS ENTRAINED IN SAID COLUMN SAID DISCHARGED THROUGH THE OPEN END OF THE TUYERE, SAID FUEL SUPPLY MEANS INCLUDING A PLURALITY OF NOZZLES EXTENDING THROUGH THE CLOSED END WALL OF THE TUYERE IN SPACED RELATION TO THE SIDE WALL AND AT SUCH A RADIAL DISTANCE FROM THE CENTER THAT THE VERTICAL AIR COLUMN THEREIN NORMALLY COVERS THE DISCHARGE OPENINGS, AND A FUEL DISTRIBUTING PAN SURROUNDING THE COLSED END WALL OF THE TUYERE, THE WALL OF SAID PAN FORMING WITH THE EDGE OF THE BLADES A PLURALITY OF PERIPHERALLY SPACED FUEL PASSAGES, AND SEPARATE CONDUIT MEANS TO SUPPLY FUEL TO SAID NOZZLES AND PAN.