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US 9,765,972 B2Granted
Fuel injectors for gas turbine engines
AssigneeDelavan Inc.
InventorGregory Zink
Life of this patent
Estimating the term…
Abstract
A fuel injector for a gas turbine engine includes a monolithic nozzle body that defines within its interior one or more fuel circuits. Each fuel circuit includes an inlet, an outlet orifice, a main passage fluidly coupling the inlet with the outlet orifice, and a branch passage connected to the main passage. The branch passage connects to the main passage downstream of the inlet and upstream of the outlet orifice to form an effective metering flow area that is smaller than the flow area of the outlet orifice.
Claims13
A fuel injector for a gas turbine engine, comprising:
- a monolithic nozzle body defining therein at least one fuel circuit, the at least one fuel circuit including:
- an inlet and an outlet orifice;
- a main passage fluidly coupling the inlet and the outlet orifice;
- and
- a branch passage connected to the main passage,
- wherein the branch passage diverges from the main passage downstream of the inlet, wherein the branch passage converges with and joins the main passage upstream of the outlet orifice, and wherein the branch passage connects to the main passage downstream of the inlet and upstream of the outlet orifice to form an effective metering flow area that is smaller than a flow area of the outlet orifice.
3 more elements
A fuel injector for a gas turbine engine, comprising:
- a prefilmer;
- and
- a monolithic nozzle body disposed within the prefilmer and defining within its interior at least one fuel circuit, the at least one fuel circuits including:
- an inlet and an outlet orifice;
- a main passage fluidly coupling the inlet and the outlet orifice;
- and
- a branch passage connected to the main passage, wherein the branch passage diverges from the main passage downstream of the inlet,
- wherein the branch passage converges with and joins the main passage upstream of the outlet orifice, and wherein the branch passage connects to the main passage downstream of the inlet and upstream of the outlet orifice to form an effective metering flow area that is smaller than a flow area of the outlet orifice.
5 more elements
Dependencies are inferred from the claim text.