Title:
FUEL INJECTOR AND INJECTION METHOD OF FUEL AND AIR
Document Type and Number:
Japanese Patent JP2000320836
Kind Code:
A
Abstract:
To supply a completely and uniformly mixed air-fuel mixture to a combustion can of a gas-turbine engine.
A hybrid fuel injector 20 comprises a pressure atomization core fuel nozzle 66 and a secondary air injection portion, which operates with a core nozzle 66 to lead a fuel-air mixture to a low-emission combustion can. The air injection portion of the injector 20 includes inner and outer annular air ducts 98 and 138, which comprise swirlers 108 and 152 for swirling inner and outer airflows in a common direction, respectively. The injector 20 further comprises an air distribution baffle 154, which separates the inner airflow into an annular sub-stream radially separated from the centerline 68 of the injector and a plurality of air jets.
Inventors:
HOKE JAMES B
Application Number:
JP2000115028A
Publication Date:
November 24, 2000
Filing Date:
April 17, 2000
Export Citation:
Assignee:
UNITED TECHNOLOGIES CORP
International Classes:
F23R3/28; F23D11/10; (IPC1-7): F23R3/28
Attorney, Agent or Firm:
Fujiya Shiga (2 outside)