Method of combustion for low-grade fuel and apparatus therefor

Claim 1

A COMBUSTION APPARATUS FOR BURNING A VERY LEAN MIXTURE OF CO AND INSERT GASES SUCH AS N2 AND CO2 COMPRISING MEANS FORMING A HOLLOW COMBUSTION CHAMBER HAVING AN INLET AND AN OUTLET FOR SAID GAS MIXTURE, MEANS INCLUDING A PLURALITY OF LARGE AIR SUPPLY CONDUITS FOR SUPPLYING A QUANTITY OF COMBUSTION AIR AT LOW VELOCITY TO THE INLET END OF SAID COMBUSTION CHAMBER, MEANS INCLUDING A PLURALITY OF HIGH VELOCITY AIR INLET JETS OPENING INTO SAID COMBUSTION CHAMBER AND SPACED FROM SAID AIR SUPPLY CONDUITS IN THE DIRECTION OF THE OUTLET END OF SAID COMBUSTION CHAMBER, IGNITION MEANS IN SAID COMBUSTION CHAMBER AT A POINT BETWEEN SAID AIR SUPPLY CONDUITS AND SAID AIR INLET JETS, A BY-PASS CONDUIT FROM THE INLET TO THE OUTLET END OF THE COMBUSTION CHAMBER, VALVE MEANS CONTROLLING THE RELATIVE FLOW OF GAS THROUGH SAID COMBUSTION