Dry low emission combustor for gas turbine engines

Details Dry low emission combustor for gas turbine engines Dry low emission combustor for gas turbine engines

1997-03-28

1998-08-18

Freay, Charles G.

Power plants

Combustion products used as motive fluid

Combustion products generator

60748, 60732, 60746, 60753, F02C 100

Patent

active

057944490

ABSTRACT:
The present invention relates generally to a low emission can-annular combustion system for an industrial gas turbine engine to satisfy increasingly stringent environmental requirements. The combustion system of the present invention employs a dual mode combustion technique to meet engine operability requirements and high power emission targets without the use of combustor diluent injection or post combustor exhaust treatment. A lean premix combustion mode is utilized to minimize primary zone combustion temperatures and limit the oxide of nitrogen production during high power engine operation. A pilot-starting auxiliary fueling system is utilized to augment the main premix fueling system. The lean premix combustion mode is enabled by a lean premix dome having a fixed axial swirler with radial fuel pathways connecting to a circumferential main fuel manifold for distributing the fuel more uniformly across the flow path. A converging portion in the lean premix dome accelerates the fluid flow to prevent flashback from the primary combustion zone.

REFERENCES:
patent: 2447482 (1948-08-01), Arnold
patent: 3859787 (1975-01-01), Anderson et al.
patent: 4078377 (1978-03-01), Owens et al.
patent: 4092826 (1978-06-01), Pask
patent: 4222232 (1980-09-01), Robinson
patent: 4263780 (1981-04-01), Stettler
patent: 4265085 (1981-05-01), Fox et al.
patent: 4455839 (1984-06-01), Wuchter
patent: 4504211 (1985-03-01), Beardmore
patent: 4671069 (1987-06-01), Sato et al.
patent: 4802334 (1989-02-01), Eder et al.
patent: 4850194 (1989-07-01), Fuglistaller et al.
patent: 4898001 (1990-02-01), Kuroda et al.
patent: 4984429 (1991-01-01), Waslo et al.
patent: 5016443 (1991-05-01), Shimizu et al.
patent: 5038558 (1991-08-01), Sohma et al.
patent: 5062792 (1991-11-01), Maghon
patent: 5101633 (1992-04-01), Keller et al.
patent: 5127221 (1992-07-01), Beebe
patent: 5165241 (1992-11-01), Joshi et al.
patent: 5218824 (1993-06-01), Cederwall et al.
patent: 5259184 (1993-11-01), Borkowicz et al.
patent: 5261239 (1993-11-01), Barbier et al.
patent: 5263325 (1993-11-01), McVey et al.
patent: 5274991 (1994-01-01), Fitts
patent: 5289686 (1994-03-01), Razdan et al.
patent: 5295352 (1994-03-01), Beebe et al.
patent: 5309709 (1994-05-01), Cederwall et al.
patent: 5319923 (1994-06-01), Leonard et al.
patent: 5319935 (1994-06-01), Toon et al.
patent: 5321947 (1994-06-01), Sood et al.
patent: 5327727 (1994-07-01), Ward
patent: 5339635 (1994-08-01), Iwai et al.
patent: 5345768 (1994-09-01), Washam et al.
patent: 5351477 (1994-10-01), Joshi et al.
patent: 5394688 (1995-03-01), Amos
patent: 5435126 (1995-07-01), Beaudoin

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