公开(公告)号：US20240271793A1

公开(公告)日：2024-08-15

申请号：US18110100

申请日：2023-02-15

Applicant: Solar Turbines Incorporated

Inventor： Christian DI NORSCIA ,  Rajeshriben PATEL ,  German VERDUZCO ,  Robert FANELLA ,  Peter SYKES ,  Hanjie LEE

IPC: F23R3/28 ,  F23R3/34

CPC classification number: F23R3/286 ,  F23R3/343 ,  F23R2900/00017

Abstract: Fuel injection for hydrogen-gas fuels poses risks with regard to emissions, flashback, and flame-holding events in a gas turbine engine. Accordingly, embodiments of a fuel injection system are disclosed that uniformly mix gas and fuel, while stabilizing a flame and facilitating maintenance. The fuel injection system may comprise a plurality of micromixer panels, mounted in windows of a frame that are arranged circumferentially around a longitudinal axis of the gas turbine engine. Each micromixer panel may comprise a plurality of axial channels, arranged around a central pilot body that is fixed in a grommet. Two or more internal fuel feeds may supply fuel to distinct subsets of fuel jets within the outlets of the axial channels, such that the fuel injection system may be operated in multiple stages.

公开(公告)号：US20230065831A1

公开(公告)日：2023-03-02

申请号：US17877732

申请日：2022-07-29

Applicant: Solar Turbines Incorporated

Inventor： Gareth W. OSKAM ,  Georgina J. MCGEE ,  Yonduck SUNG ,  Gregory Michael BALOW ,  Rajeshriben PATEL ,  Nathan J. KIRKSEY

IPC: F23R3/28 ,  F23D14/58 ,  F23D14/64

Abstract: Known micromixers for fuel injection (e.g., in a gas turbine engine) experience early burning or have limited operability. Accordingly, a micromixer is disclosed that utilizes an air nozzle, in combination with one or more fuel jets, to produce short flames that minimize the emission of nitrogen oxides, while providing additional benefits, such as mechanical robustness, aerodynamic efficiency, resistance to flame damage, suitability for additive manufacturing, wider operating ranges, operation with a variety of gaseous fuels, and/or amenability to control using conventional mechanisms.