Patent ID: 7624578
Filing Date: 2009-12-01
Classification: F23R

Abstract:
1. A method for generating combustion products within a gas turbine engine, said method comprises: defining a first direction that is indicative of the overall direction of flow of combustion products within a combustion chamber that is defined by a porous wall, the porous wall having an upstream endwall with respect to the first direction; directing a first, internal air/fuel mixture from a burner at least partially within the combustion chamber, wherein the direction of flow of the first air/fuel mixture exiting the burner is opposite the first direction, the first air/fuel mixture directed towards a stagnation point that is adjacent to an inner surface of the upstream endwall, wherein the porous wall is fabricated from a porous material; igniting the first air/fuel mixture to generate combustion products including a pilot flame; externally mixing a quantity of air with a quantity of fuel external to the porous wall to produce a second, external air/fuel mixture; directing the second air/fuel mixture through the porous wall and into the combustion chamber such that the second air/fuel mixture is ignited by the pilot flame; and reversing a direction of flow of the combustion products at the stagnation point.