Power plants – Combustion products used as motive fluid – Combined with regulation of power output feature
Reexamination Certificate
2011-08-23
2011-08-23
Cuff, Michael (Department: 3741)
Power plants
Combustion products used as motive fluid
Combined with regulation of power output feature
C060S737000
Reexamination Certificate
active
08001761
ABSTRACT:
An apparatus for actively controlling fuel flow from a fuel pump to a mixer assembly of a gas turbine engine combustor, where the mixer assembly includes a pilot mixer and a main mixer. The pilot mixer further includes an annular pilot housing having a hollow interior, a primary fuel injector mounted in the pilot housing and adapted for dispensing droplets of fuel to the hollow interior of the pilot housing, a plurality of axial swirlers positioned upstream from the primary fuel injector. The fuel flow control apparatus further includes: at least one sensor for detecting dynamic pressure in the combustor; a fuel nozzle; and, a system for controlling fuel flow supplied by the fuel nozzle through the valves. The fuel nozzle includes: a feed strip with a plurality of circuits for providing fuel to the pilot mixer and the main mixer; and, a plurality of valves associated with the fuel nozzle and in flow communication with the feed strip thereof. The control system activates the valves in accordance with signals received from the pressure sensor.
REFERENCES:
patent: 6354072 (2002-03-01), Hura
patent: 6363726 (2002-04-01), Durbin et al.
patent: 6367262 (2002-04-01), Mongia et al.
patent: 6381964 (2002-05-01), Pritchard, Jr. et al.
patent: 6389815 (2002-05-01), Hura et al.
patent: 6405523 (2002-06-01), Foust et al.
patent: 6418726 (2002-07-01), Foust et al.
patent: 6453660 (2002-09-01), Johnson et al.
patent: 6484489 (2002-11-01), Foust et al.
patent: 6523350 (2003-02-01), Mancini et al.
patent: 6718770 (2004-04-01), Laing et al.
patent: 6742341 (2004-06-01), Ryan et al.
patent: 6865889 (2005-03-01), Mancini et al.
patent: 6955040 (2005-10-01), Myers, Jr. et al.
patent: 2002/0129606 (2002-09-01), Wrubel et al.
patent: 2004/0255594 (2004-12-01), Baino et al.
patent: 0714583.2 (2009-01-01), None
patent: 2004316506 (2004-11-01), None
Hsiao George Chia-Chun
Hsieh Shih-Yang
Li Shui-Chi
Mancini Alfred Albert
Mongia Hukam Chand
Andes William Scott
Cuff Michael
General Electric Company
General Electric Company
Louke Marcella R.
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