Patent ID: 7028478
Filing Date: 2006-04-18
Classification: F23G,F23L,F23M,F28F,Y02E

Abstract:
1. An apparatus for use as a hydrocarbon combustion gas generator comprising: a first combustion chamber in which a first combustion of fuel and oxidizer can be performed to produce an incomplete combustion product, the first combustion chamber having an inlet end and an outlet end; control and metering means for separately metering a fuel and an oxidizer into the first combustion chamber to achieve an incomplete combustion of the fuel in the first chamber; a second combustion chamber in which a second combustion of fuel and additional oxidizer can be performed to produce a second combustion product, the second combustion chamber having an inlet end and an outlet end, wherein the inlet end of the second combustion chamber is in fluid communication with the outlet end of the first combustion chamber; control and metering means for metering additional oxidizer into the second chamber combustion chamber to further combust fuel in the second chamber; a means for metering into the second combustion chamber the incomplete combustion product produced in the first combustion chamber; and a heat exchanger means for cooling the first and second combustion chambers and for optionally converting cooling water to steam, wherein the cooling water and steam are maintained separate from combustion gases produced by the first and second combustions.