F - Mech Eng,Light,Heat,Weapons – 02 – C
Patent
F - Mech Eng,Light,Heat,Weapons
02
C
60/168
F02C 7/04 (2006.01) F23C 6/04 (2006.01) F23C 7/00 (2006.01) F23R 3/26 (2006.01)
Patent
CA 1086079
COMBUSTOR WITH VARIABLE AND TANGENTIALLY DIRECTED PRIMARY AIR FLOW AND TANGENTIALLY DIRECTED SECONDARY AIR FLOW Abstract of the Disclosure New combustors, and methods of operating same, which produce lower emissions, particularly lower emissions of nitro- gen oxides and CO, are provided. Said combustors are provided with a first combustion region and an adjacent downstream second combustion region. A first stream of air is introduced, either radially, axially, or tangentially, into said first com- bustion region and the amount of said air is varied in accord- ance with fuel flow to said first combustion region. A second stream of air is introduced tangentially into said first combus- tion region. A third stream of air is introduced tangentially into said second combustion region. In preferred embodiments of the invention the air stream pressure drop across an air assist fuel nozzle is varied in accordance with fuel flow to said nozzle.
247091
Osler Hoskin & Harcourt Llp
Phillips Petroleum Company
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