| 摘要 |
An airblast fuel injector 10 capable of accommodating high fuel temperature at the injector tip without deleterious fuel vaporization problems and resultant combustion instability in a gas turbine engine includes part annular spring valve 50 mounted on an annular shoulder of an inner injector body 14 forming a fuel chamber 48 with the valve having a cantilever valve head 110 for controlling fuel flow from a fuel swirling orifice 54 in the shoulder near the injector tip. The method involves valving the fuel flow in the injector tip near to the fuel discharge orifice 56 in a valve closed manner below a selected minimum fuel pressure and in a valve metering manner above the selected fuel pressure with valving located sufficiently upstream therefrom that the airblast operational characteristics of the injector due to inner and outer air discharging past lips 60, 62 are not adversely affected. <IMAGE> |
