Abstract: A gas turbine engine is disclosed in which water is used to cool the turbine. The water is turned to steam in the hot turbine; is super-heated, and then injected into the combustor to aid in the gasification of the fuel, to reduce the flame temperature and improve emissions, as well as increasing the specific output of the engine.

Abstract: Primary air to the fuel-air mixing chamber of a gas turbine engine is cooled to reduce generation of nitrous oxides. A porous disc separates the fuel-air mixture chamber from the combustion chamber and serves to uniformly mix the fuel and air to reduce the reaction temperature. A catalyst is sprayed on the disc surface in the combustion chamber to speed combustion. A heater embedded in the disc heats the disc and prevents excessive generation of nitrous oxides during the engine start-up. A metering valve can be used to regulate the temperature of the primary air by supplying heated secondary air to the primary air.

Abstract: A gas turbine engine is disclosed in which water is used to cool the turbine. The water is turned to steam in the hot turbine; is super-heated, and then injected into the combustor to aid in the gasification of the fuel, to reduce the flame temperature and improve emissions, as well as increasing the specific output of the engine.