Patent ID: 6247316
Filing Date: 2001-06-19
Classification: F01K,Y02E

Abstract:
A low or no pollution emitting combustion engine to provide power for various applications including vehicle propulsion or stationary electric power generation, the engine comprising in combination:an air inlet;a source of fuel at least partially including hydrogen;an air treatment device including an inlet coupled to said air inlet, a means to remove nitrogen from the air, so that the air has less nitrogen than at said air inlet, and an oxygen rich outlet;a fuel combustor, said fuel combustor receiving fuel from said source of fuel and oxygen from said outlet of said air treatment device, said combustor combusting said fuel with said oxygen to produce elevated pressure and elevated temperature combustion products including steam, said combustor having a discharge for said combustion products;wherein at least part of a non-steam portion of the combustion products is removed from the combustion products after discharge from said combustor, so that the combustion products have more steam than the combustion product at said discharge; anda return line for routing at least a portion of the steam rich combustion products back to said combustor.