Patent ID: 6112511
Filing Date: 2000-09-05
Classification: F01D,F02C,F23L,F23R

Abstract:
An apparatus for injecting fluid coolant into a gas turbine engine combustor, the combustor having a combustion chamber defined by a combustor liner and a pressurized air plenum circumscribing the combustor liner, the combustor liner having at least one primary air orifice extending therethrough, said apparatus comprising:a hollow tube adapted for insertion into the primary air orifice, said tube extending from a first open end in fluid communication with the combustion chamber through the primary air orifice to a second open end, the tube further comprising a side wall defining a longitudinal axis of the tube, the wall having at least one aperture disposed therein, said aperture in fluid communication between said air plenum and the interior of the tube; anda fluid nozzle disposed through said second end of the tube, said fluid nozzle adapted to inject a flow of liquid coolant into an air stream flowing from said aperture to the first open end of the tube and then to the combustion chamber.