Nader K Rizk

US Patent:

20040003596, Jan 8, 2004

Filed:

Apr 25, 2003

Appl. No.:

10/423135

Inventors:

Jushan Chin - Indianapolis IN, US
Nader Rizk - Indianapolis IN, US
Mohan Razdan - Indianapolis IN, US
Andre Marshall - University Park MD, US

International Classification:

F23R003/30

US Classification:

060/737000, 060/748000

Abstract:

A fuel-air premixing module is designed to reduce emissions from a gas turbine engine. In one form, the premixing module includes a central pilot premixer module with a main premixer module positioned thereround. Each of the portions of the fuel-air premixing module include an axial inflow swirler with a plurality of fixed swirler vanes. Fuel is injected into the main premixer module between the swirler vanes of the axial inflow swirler and at an acute angle relative to the centerline of the premixing module.