F - Mech Eng,Light,Heat,Weapons – 23 – R
Patent
F - Mech Eng,Light,Heat,Weapons
23
R
F23R 3/28 (2006.01) F02C 7/22 (2006.01) F02C 9/26 (2006.01)
Patent
CA 2595061
An apparatus (200) for actively controlling fuel flow from a fuel pump (202) to a mixer assembly (100) of a gas turbine engine combustor (26), where the mixer assembly (100) includes a pilot mixer (102) and a main mixer (104). The pilot mixer (102) further includes an annular pilot housing (108) having a hollow interior, a primary fuel injector (110) mounted in the pilot housing (108) and adapted for dispensing droplets of fuel to the hollow interior of the pilot housing (108), a plurality of axial swirlers (112,114) positioned upstream from the primary fuel injector (110). The fuel flow control apparatus (200) further includes: at least one sensor (218) for detecting dynamic pressure in the combustor (26); a fuel nozzle (68); and, a system (204) for controlling fuel flow supplied by the fuel nozzle (68) through the valves (184,186,188). The fuel nozzle (68) includes: a feed strip (178) with a plurality of circuits (180,182,183) for providing fuel to the pilot mixer (102) and the main mixer (104); and, a plurality of valves (184,186,188) associated with the fuel nozzle (68) and in flow communication with the feed strip (178) thereof. The control system (204) activates the valves (184,186,188) in accordance with signals (216) received from the pressure sensor (218).
Hsiao George Chia-Chun
Hsieh Shih-Yang
Li Shui-Chi
Mancini Alfred Albert
Mongia Hukam Chand
Company General Electric
Craig Wilson And Company
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