Self-stabilizing combustion apparatus

Claim 1

IN COMBUSTION APPARATUS COMPRISING, IN COMBINATION: WALL MEANS FORMING A COMBUSTION CHAMBER, SAID WALL MEANS COMPRISING A GENERALLY CYLINDRICAL WALL HAVING A CORRESPONDING INSIDE AND OUTSIDE SURFACE AND THE ENDS OF WHICH CYLINDRICAL WALL DEFINE AN INLET AND EXIT END OF THE COMBUSTION CHAMBER, AND A BACKPLATE AFFIXED TO THE CYLINDRICAL WALL AT THE INLET END THEREOF; A FUEL DELIVERY PIPE HAVING AN INLET AND EXIT END AND A CORRESPONDING INSIDE AND OUTSIDE SURFACE AND EXTENDING THROUGH THE BACKPLATE INTO SAID COMBUSTION CHAMBER SUBSTANTIALLY ALONG THE AXIS OF THE CYLINDRICAL WALL AND TERMINATING AT A POINT INTERMEDIATE SAID INLET AND EXIT ENDS OF SAID COMBUSTION CHAMBER FOR INTRODUCING A STREAM OF FUEL SUBSTANTIALLY AXIAL TO SAID COMBUSTION CHAMBER; AND PRIMARY AIR INLET MEANS CONNECTED TO THE OUTSIDE SURFACE OF SAID CYLINDRICAL WALL ADJACENT SAID BACKPLATE, SUBSTANTIALLY ANGENTIAL TO THE INSIDE SURFACE OF SAID CYLINDRICAL WALL, AND IN A PLANE DISPOSED SUBSTANTIALLY PERPENDICULAR TO THE AXIS OF THE CHAMBER FOR INTRODUCING A FIRST SPINNING STREAM OF AIR COMPRISING A PORTION OF THE COMBUSTION AIR REQUIREMENTS OF THE FUEL STREAM; THE IMPROVEMENT COMPRISING SECONDARY AIR INLET MEANS CONNECTED TO THE OUTSIDE SURFACE OF SAID FUEL DELIVERY PIPE, INTERMEDIATE ITS INLET AND EXIT ENDS, SUBSTANTIALLY TANGENTIAL TO THE INSIDE SURFACE OF THE FUEL DELIVERY PIPE IN A DIRECTION FOR INTRODUCING TO SAID FUEL DELIVERY PIPE AND HENCE TO SAID COMBUSTION CHAMBER AND A SECOND STREAM OF AIR CIRCUMPOSING THE FUEL STREAM AND SPINNING IN THE SAME DIRECTION AS THE FIRST STREAM OF AIR.