Combustion temperature control

Details Combustion temperature control Combustion temperature control

1975-08-25

1977-08-16

Gordon, Clarence R.

Power plants

Combustion products used as motive fluid

60 3928T, 60 3927, 60 3929, 431 12, F02C 908

Patent

active

040416941

ABSTRACT:
In order to maintain local flame temperatures in a gas turbine engine combustor lower than 3200.degree. F. to prevent excessive formation of nitrogen oxides and above 2500.degree. F. to prevent excessive carbon monoxide formation and flameout, it is desirable to measure the flame temperature at a number of points within the combustor. Appropriate volumes of cool air entering the burner and hot gas in the flame vicinity are withdrawn and mixed to produce a gas mixture at a temperature low enough to be measured by conventional means such as thermocouples. The volume of each gas withdrawn is controlled by flow through a choked orifice. The pressure differential between the combustor pressure and ambient pressure is used to choke the flow control orifices.

REFERENCES:
patent: 2606420 (1952-08-01), Moore
patent: 3245219 (1966-04-01), Warden
patent: 3403509 (1968-10-01), Eastman
patent: 3416310 (1968-12-01), Boothe
patent: 3590653 (1971-07-01), Dreckmann
patent: 3651639 (1972-03-01), Black
patent: 3769792 (1973-11-01), Grey
patent: 3893291 (1975-07-01), Davis
patent: 3899878 (1975-08-01), Compton
patent: 3899886 (1975-08-01), Swick
patent: 3938319 (1976-02-01), Thomson

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