Power plants – Combustion products used as motive fluid – Combustion products generator
Reexamination Certificate
2005-07-25
2008-12-16
Rodriguez, William H (Department: 3746)
Power plants
Combustion products used as motive fluid
Combustion products generator
C060S740000
Reexamination Certificate
active
07464553
ABSTRACT:
A mixer assembly for use in a combustion chamber of a gas turbine engine includes a pilot mixer, a main mixer, and a fuel manifold positioned between the pilot mixer and main mixer. The pilot mixer includes an annular pilot housing having a hollow interior and a pilot fuel nozzle mounted in the housing and adapted for dispensing droplets of fuel to the hollow interior of the pilot housing. The main mixer includes: a main housing surrounding the pilot housing and defining an annular cavity; a plurality of fuel injection ports for introducing fuel into the cavity; a post member associated with and extending from each fuel injection port to an inner surface of said annular cavity, the post member including an inner passage therethrough in flow communication with the fuel injection port; a passage surrounding each post member, wherein air is provided therefrom to envelop fuel injected into the annular cavity; and, a swirler arrangement including at least one swirler positioned upstream from the fuel injection ports, wherein each swirler of the arrangement has a plurality of vanes for swirling air traveling through such swirler to mix air and the droplets of fuel dispensed by the fuel injection ports. The air through the passages is either injected substantially straight through or swirled a predetermined amount.
REFERENCES:
patent: 3972182 (1976-08-01), Salvi
patent: 5321951 (1994-06-01), Falls et al.
patent: 6279323 (2001-08-01), Monty et al.
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: 6418726 (2002-07-01), Foust et al.
patent: 6453660 (2002-09-01), Johnson et al.
patent: 6484489 (2002-11-01), Foust et al.
patent: 6865889 (2005-03-01), Mancini et al.
patent: 6898938 (2005-05-01), Mancini et al.
patent: 7246494 (2007-07-01), Currin et al.
patent: 2007/0017224 (2007-01-01), Li et al.
patent: 2007/0028595 (2007-02-01), Mongia et al.
patent: 2007/0028618 (2007-02-01), Hsiao et al.
patent: 2007/0028620 (2007-02-01), McMasters et al.
patent: 2007/0028624 (2007-02-01), Hsieh et al.
patent: 2007/0137207 (2007-06-01), Mancini et al.
patent: 2007/0271927 (2007-11-01), Myers et al.
patent: 2007/0289305 (2007-12-01), Oda et al.
Hsiao George Chia-Chun
Hsieh Shih-Yang
Li Shui-Chi
Mongia Hukam Chand
Anders William Scott
Davidson James P.
General Electric Company
Rodriguez William H
LandOfFree
Air-assisted fuel injector for mixer assembly of a gas... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Air-assisted fuel injector for mixer assembly of a gas..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air-assisted fuel injector for mixer assembly of a gas... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4040390