DUAL FUEL INJECTION NOZZLES

摘要

Gas turbine engines can be selectively operated on either a gaseous fuel or a liquid fuel or on both types of fuel at the same time by means of dual fuel injection nozzles (114) of the air blast type. A centrally disposed primary air passage (220) extends through an elongate body (158) in each nozzle and an annular liquid fuel passage (172) surrounds the primary air passage. A gas fuel shroud (162) surrounds the body to provide a passage (176) for gaseous fuel which opens through a plurality of discharge ports (328) inclined towards the axis of the nozzle.