Patent ID: 7926283

Claim:
A gas turbine combustion system including: a first member having an exterior surface and an interior surface that define a wall of the first member therebetween, the wall of the first member being configured so that the first member substantially includes an enclosure having a central area; a second member located at least in part adjacent the interior surface of the first member and being at least partially enclosed by the wall of the first member; a substantially open space located at least partially between the interior surface of the first member and the second member; a source of a cooling gas in fluid communication with at least the exterior surface of the first member; and at least one opening in the wall of the first member providing at least one passageway for the cooling gas to flow from the exterior surface of the first member through the wall of the first member to the substantially open space, the at least one passageway being configured so as to have a directional axis along which the cooling gas flows through the at least one passageway and is discharged into the substantially open space, the directional axis being substantially oriented in a direction other than directly towards the central area of the first member; wherein at least a portion of a hula seal is located in the substantially open space and the second member includes a cap in which is contained at least a portion of one or more fuel nozzles of the gas turbine combustion system.