Patent ID: 7065955

Claim:
A spray nozzle assembly for injecting water into a gas turbine engine combustor, said spray nozzle assembly comprising: a nozzle valve comprising an inlet and an outlet, said inlet configured to couple in flow communication to a water source; a nozzle stem in flow communication with said nozzle valve, said nozzle stem comprising an inlet and an outlet; a mounting flange ( 104 ) circumscribing said nozzle stem adjacent said nozzle valve outlet; and a popet nozzle ( 106 ) coupled to said nozzle stem outlet having a portion protruding therefrom and retractable into said nozzle stem from an extended position to a retracted position, wherein a minority of a length of said popet nozzle extends within said nozzle stem when said popet nozzle is in said extended position, said mounting flange for mounting said spray nozzle assembly to the combustor such that said popet nozzle extends from an upstream end of the combustor substantially concentrically into the combustor to discharge water into the combustor.