Main stage fuel mixer with premixing transition for dry low No.s

Details Main stage fuel mixer with premixing transition for dry low No.s Main stage fuel mixer with premixing transition for dry low No.s

1998-06-10

2000-03-21

Freay, Charles G.

Power plants

Combustion products used as motive fluid

Combustion products generator

60746, 60748, 239428, F02G 300

Patent

active

060388617

ABSTRACT:
A main stage fuel mixer that reduces NO.sub.x and CO emissions of a gas turbine combustor by providing a more homogeneous fuel/air mixture for main stage combustion is provided. A gas turbine combustor according to the present invention includes a nozzle housing having a nozzle housing base, a plurality of main nozzles, and a main stage fuel mixer. A main combustion zone is located adjacent to the nozzle housing. Each main nozzle extends through the nozzle housing and is attached to the nozzle housing base. The main stage fuel mixer has a plurality of inlets, each of which is adapted to receive a flow of gas, and an outlet adjacent to the main combustion zone. The main stage fuel mixer has a plurality of transition ducts, each associated with one inlet. Each transition duct provides fluid communication from the inlet associated with the transition duct to the outlet.

REFERENCES:
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patent: 5359847 (1994-11-01), Pillsbury et al.
patent: 5901549 (1999-05-01), Mandai et al.
patent: 5901555 (1999-05-01), Mandai et al.

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