Patent ID: 6758043
Filing Date: 2004-07-06
Classification: F23K,Y10T

Abstract:
A fuel injector for a turbomachine engine, the injector comprising an injector body having pressurized fuel admission means, a first valve mounted downstream from said pressurized fuel admission means and arranged to open in response to a predetermined fuel pressure defining a first threshold pressure so as to admit fuel into the injector body, a second valve mounted downstream from said first valve and capable of opening in response to a second fuel threshold pressure higher than said first threshold pressure so as to meter at least a fraction of the fuel admitted into said injector body for utilization means for using said fuel, the metered fuel flow rate to the utilization means being a function of flow sections formed through said second valve, the injector further comprising a diaphragm placed between the pressurized fuel admission means and the first valve so as to set the rate at which fuel is admitted into the injector body at a determined value.