Fuel lance for the combustion chamber of a gas turbine

Details Fuel lance for the combustion chamber of a gas turbine Fuel lance for the combustion chamber of a gas turbine

1985-11-25

1988-08-09

Croyle, Carlton R.

Power plants

Combustion products used as motive fluid

Combustion products generator

F02C 100

Patent

active

047619589

ABSTRACT:
Self-excited vibrations can occur in the combustion chambers of gas turbines, which vibrations are due to modulation of the quantity of gaseous fuel or fuel/air mixture as the fuel is injected through a nozzle and into the combustion chamber. The modulation results from pressure fluctuations that occur in the plane of the nozzle. The new fuel lance simultaneously permits both de-coupling of the fuel line in order to avoid combustion chamber vibrations and the possibility of fuel quantity control. The fuel lance comprises an adjustable throttle body that is provided with fuel passage openings and a plunger, the penetration depth of which plunger relative to that of the throttle body is a measure of the fuel quantity flowing therethrough.

REFERENCES:
patent: 2775484 (1956-12-01), Fox
patent: 3234731 (1966-02-01), Dermody et al.
patent: 3664124 (1972-05-01), Fehler
patent: 3695037 (1972-10-01), Alverari
patent: 3726088 (1973-04-01), Kretschmer et al.

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