Apparatus for burning internal combustion engine exhaust

Claim 1

IN AN ENGINE EXHAUST SYSTEM, AN APPARATUS COMPRISING AN EXHAUST PIPE HAVING A SUBSTANTIALLY UNOBSTRUCTED REGION THEREIN, THE FORWARD END OF SAID PIPE CONNECTED TO A SOURCE OF INCOMPLETELY BURNED EXHAUST GASES, AN ELONGATED PERFORATED TUBE HAVING A DIAMETER LESS THAN THE DIAMETER OF SAID EXHAUST PIPE DISPOSED COAXIALLY WITHIN SAID EXHAUST PIPE IN SAID SUBSTANTIALLY UNOBSTRUCTED REGION THEREOF TO PROVIDE AN ANNULAR SPACE BETWEEN SAID PERFORATED TUBE AND SAID EXHAUST PIPE, ASPIRATING NOZZLE MEANS HAVING A DISCHARGE ORIFICE COAXIALLY DISPOSED AT THE FORWARD END OF SAID PERFORATED TUBE WITH SAID DISCHARGE ORIFICE DIRECTED TOWARD THE REARWARD END OF SAID PERFORATED TUBE ADAPTED SO THAT PRESSURIZED GAS ASPIRATES LIQUID FUEL THERETHROUGH FOR PRODUCING A SPRAY WHICH UPON IGNITION BURNS AS A COMPACT, ELONGATED FLAME WITHIN SAID PERFORATED TUBE, IGNITER MEANS FOR IGNITING SAID SPRAY, AIR ADMITTING MEANS FOR ADMITTING AIR TO SAID PERFORATED TUBE, ENCLOSURE MEANS IN THE REGION OF THE FORWARD END OF SAID PERFORATED TUBE FOR PREVENTING ADMISSION OF ENGINE EXHAUST THROUGH THE FORWARD END OF SAID PERFORATED TUBE, THE REARWARD END OF SAID PERFORATED TUBE BEING OPEN AND SAID PERFORATED TUBE BEING AXIALLY UNOBSTRUCTED FROM SAID ASPIRATING NOZZLE THROUGH ITS REARWARD END, SAID ANNULAR SPACE BEING LONGITUDINALLY UNOBSTRUCTED THROUGHOUT AND AT ITS FORWARD AND REARWARD ENDS SO THAT EXHAUST IS NOT SUBSTANTIALLY FORCED INTO SAID PERFORATED TUBE BUT SO THAT THE FLAME FROM SAID ASPIRATING NOZZLE CREATES AN ASPIRATING EFFECT UPON THE ENGINE EXHAUST FLOWING COCURRENTLY ON THE OUTSIDE OF SAID PERFORATED TUBE DRAWING SAID EXHAUST INWARDLY THROUGH THE TUBE PERFORATIONS TO BOTH BURN SAID EXHAUST AND HASTEN ITS REMOVAL FROM THE ENGINE.