Double annular combustor configuration

Details Double annular combustor configuration Double annular combustor configuration

1977-12-15

1980-03-25

Garrett, Robert E.

Power plants

Combustion products used as motive fluid

60 3936, 60747, 60 3982P, 60748, F02C 722

Patent

active

041943589

ABSTRACT:
A double annular combustor is provided with a main stage section disposed on the radially outer side such that its length is thereby minimized to reduce the resulting NOX emissions and its profile is thereby linearized so as to reduce the impingement of hot gases against the combustor wall. The pilot stage section is located radially inward so that its increased length tends to increase the residence time for idle and thereby reduce the hydrocarbon and carbon monoxide emissions.

REFERENCES:
patent: 2996884 (1961-08-01), Johnson et al.
patent: 3788065 (1974-01-01), Markowski
patent: 3910035 (1975-10-01), Juhasz et al.
patent: 3931707 (1976-01-01), Vooviak
Yaffee, M., "NASA Seeks Clean Combustors", Aviation Week and Space Tech., Aug. 26, 1974, pp. 56-59.

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