Method for increasing the thrust of jet engines by the use of rapidly decomposable nitrogen compounds

Claim 1

IN A METHOD FOR OPERATING A JET ENGIN IN THE PROPULSION OF AN AIRCRAFT, WHEREIN HIGH VELOCITY GAS PASSES SUCCESSIVELY THROUGH A COMPRESSION ZONE, A COMBUSTION ZONE, AND AN EXHAUST ZONE AT OPERATING CONDITIONS OF VARYING SEVERITY SUCH AS RESULT IN UNSTABLE BURNING OF FUEL IN SAID COMBUSTION ZONE AND WHEREIN HYDROCARBON FUEL AND AIR ARE INJECTED INTO SAID COMBUSTION ZONE OF SAID JET ENGINE AT A FUEL-AIR RATION BETWEEN .005 AND .10; THE IMPROVEMENT WHICH COMPRISES INJECTING INTO SAID COMBUSTION ZONE A NORMALLY SOLID NITROGEN COMPOUND SELECTED FROM THE GROUP CONSISTING OF AMMONIUM NITRATE, AMMONIUM NITRITE, HYDROXYLAMINE NITRATE, UREA, AND UREA NITRATE, AT SUCH A RATE THAT THE RATIO OF GAS PRODUCED FROM SAID NITROGEN COMPOUND TO OTHER GASES IN SAID COMBUSTION ZONE RANGES FROM 1:2 TO 1:5; BURNING SAID FUEL WITH SAID AIR IN SAID COMBUSTION ZONE SO AS TO HEAT ANY EXCESS AIR AND COMBUSTION GASES AND DECOMPOSE SAID NITROGEN COMPOUND TO FORM A GAS IN SUCH QUANTITY AS TO STABILIZE THE BURNING OF SAID FUEL; AND EXHAUSTING SAID GASES FROM SAID COMBUSTION ZONE THROUGH AN EXHAUST ZONE.