Hybrid can-annular combustor for axial staging in low NOx combus

Details Hybrid can-annular combustor for axial staging in low NOx combus Hybrid can-annular combustor for axial staging in low NOx combus

1997-10-06

1999-11-02

Feay, Charles G.

Power plants

Combustion products used as motive fluid

Plural combustion products generators in ring coaxial with...

60737, 60747, F02C 300

Patent

active

059747811

ABSTRACT:
The instant invention is directed in general to combustors for gas turbines and, more specifically, to a hybrid can-annular combustor for axial staging in low NOx Combustion. In a preferred embodiment, the instant invention uses premixing stages at different axial positions to carry out axial staging of the heat release for increased operability, where the combustor has a first premixing means for injecting a fuel-air mixture into a can-type configuration for providing the advantages of a can-type combustor for low-load and/or low-temperature conditions and a second premixing means for injecting a fuel-air mixture into an annular-type configuration for providing the advantages of an annular-type combustor for high load and/or high temperature conditions.

REFERENCES:
patent: 4253301 (1981-03-01), Vogt
patent: 5285635 (1994-02-01), Savelli et al.
patent: 5402634 (1995-04-01), Marshall
patent: 5465570 (1995-11-01), Szillat et al.

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