Combustors and methods of operating same

Details Combustors and methods of operating same Combustors and methods of operating same

1975-04-14

1977-02-08

Favors, Edward G.

Combustion

Process of combustion or burner operation

Flame shaping, or distributing components in combustion zone

60 3965, 431 11, 431352, F23D 1144

Patent

active

040070026

ABSTRACT:
New combustors, and methods of operating same, which produce lower emissions, particularly lower emissions of nitrogen oxide and CO, are provided. Means and methods are provided for supplying separate streams of air to first and second combustion regions of a combustor, and expanding combustion products when passing same from said first combustion region to said second combustion region. The combustors of the invention are characterized by the relatively small volume of said first combustion region as compared to the total volume of said first combustion region and said second combustion region; and methods and means provided for introducing first and second streams of air to said first and second regions, respectively. In some embodiments of the invention unheated air is used in the first combustion region. In other embodiments of the invention heated air is used in said first combustion region.

REFERENCES:
patent: 3865538 (1974-04-01), Quigg

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