Patent ID: 11885498
Assignee: GENERAL ELECTRIC COMPANY
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 11:
12. A fuel system for a gas turbine engine having a combustor, the fuel system comprising:
a fuel supply;
a combustion chamber extending between a dome inlet and a combustor outlet;
a primary fuel injector fluidly coupled to the dome inlet;
a second fuel injector fluidly coupled to the combustion chamber at a location downstream of the dome inlet and upstream of the combustor outlet;
a structural element defining the second fuel injector and extending radially at least partially into the combustion chamber and axially between a structural element leading edge and a structural element trailing edge, the structural element separating the combustion chamber into a primary zone downstream from the primary fuel injector and a secondary zone downstream of the structural element trailing edge, wherein a first length defining the primary zone and measured axially between the dome inlet and the structural element trailing edge is less than or equal to twice a second length defining the secondary zone and measured axially between the structural element trailing edge and a leading edge of a downstream set of vanes;
a set of openings radially spaced along the structural element, defining an outlet of the second fuel injector, and arranged along the structural element leading edge;
a primary fuel line fluidly coupling the fuel supply to the primary fuel injector;
a catalytic endothermic reformer fluidly coupled to the fuel supply; and
a secondary fuel line fluidly coupling the catalytic endothermic reformer to the second fuel injector.