Patent Number: 6,966,186

Title: Non-catalytic combustor for reducing NOx emissions

Abstract: A gas turbine engine combustor (26) including a primary combustion chamber (28), a mixer element (34), a mixing chamber (46) and a secondary combustion chamber (48). The primary combustion chamber receives a fuel oxidizer mixture flow (22) and discharges a partially oxidized mixture flow (32). The mixer element includes a plurality of flow channels (36, 38) for separating the partially oxidized mixture from a flow of an oxidizer (24) and producing a plurality of partially oxidized mixture flows interspersed with a plurality of oxidizer fluid flows. The mixer element may include a plurality of tubes (62) retained by an upstream tubesheet (70) and a downstream tubesheet (76). The mixer element may function as a heat exchanger to heat the oxidizer fluid flow and to cool the partially oxidized mixture flow upstream of the post-mixing chamber.

Inventors: Bachovchin; Dennis M. (Delmont, PA), Lippert; Thomas E. (Murrysville, PA)

Assignee: Siemens Westinghouse Power Corporation

International Classification: A23L 1/30 (20060101); A61K 38/56 (20060101); A61K 38/55 (20060101); F23D 14/46 (20060101); F23D 14/66 (20060101); F23R 3/28 (20060101); F23R 3/34 (20060101); F23C 6/04 (20060101); F23C 6/00 (20060101); F02C 003/14 (); F23R 003/02 ()

Expiration Date: 1/22/02018