초록 ▼

An elongate igniter is disposed in the inner air chamber of an air blast nozzle coaxial with the longitudinal axis thereof such that the discharge tip of the igniter discharges a spark generally longitudinally downstream of the tip out of the path of swirling inner air flow and in the path of a reve

An elongate igniter is disposed in the inner air chamber of an air blast nozzle coaxial with the longitudinal axis thereof such that the discharge tip of the igniter discharges a spark generally longitudinally downstream of the tip out of the path of swirling inner air flow and in the path of a reverse flow field of atomized fuel established downstream of the tip by relatively controlled inner and outer air swirl strengths.

대표청구항 ▼

A method for starting combustion in the combustor of a gas turbine engine comprising the steps of: (a) discharging a swirling inner air flow and swirling outer air flow from a nozzle face while discharging a fuel flow from the nozzle face between the inner air flow and the outer air flow to establis

A method for starting combustion in the combustor of a gas turbine engine comprising the steps of: (a) discharging a swirling inner air flow and swirling outer air flow from a nozzle face while discharging a fuel flow from the nozzle face between the inner air flow and the outer air flow to establish a flow field in the combustor of atomized fuel downstream of the nozzle face and downstream of an igniter tip so disposed adjacent the nozzle face that the swirling inner air flow swirls peripherally about the igniter tip, and (b) establishing a spark discharge from the igniter tip generally longitudinally downstream of the igniter tip out of the path of the inner air flow as it swirls about the igniter tip and discharges from the nozzle face and in the path of the flow field of atomized fuel to ignite same.