Combined pilot and main burner

Details Combined pilot and main burner Combined pilot and main burner

1979-11-05

1981-12-15

Garrett, Robert E.

Power plants

Combustion products used as motive fluid

Combustion products generator

60746, F02C 314, F23R 332

Patent

active

043052550

ABSTRACT:
The invention relates to a fuel system for a gas turbine engine wherein an annular combustion chamber 10 has an annular series of pairs of first and second nozzles 15,16. In one mode of operation fuel is supplied only to the first nozzles 15. In another mode, fuel is supplied also to the second nozzles. The change has to be made during operation of the engine. If the first and second nozzles had separate supply manifolds, the manifold pertaining to the second nozzles would have to be primed and purged respectively when initiating and terminating the use of the second nozzles. To avoid this difficulty the first and second nozzles are supplied by a single manifold 12 and the second nozzles are controlled by individual valves 21 situated close to the latter nozzles and operated collectively by a fluid pressure supply 26,27.

REFERENCES:
patent: 2590853 (1952-04-01), Fulton
patent: 2724239 (1955-11-01), Fox
patent: 3247967 (1966-04-01), Kucmerosky
patent: 4157012 (1979-06-01), Dubell
patent: 4194358 (1980-03-01), Stenger
patent: 4208031 (1980-06-01), Jonak

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