Power plants – Combustion products used as motive fluid
Patent
1995-06-30
1996-10-29
Casaregola, Louis J.
Power plants
Combustion products used as motive fluid
60746, F02C 7228
Patent
active
055687210
ABSTRACT:
The present invention relates to a method and apparatus for supplying fuel to and cooling a fuel injector of a gas turbine engine having a dual head combustion chamber. The method comprises the steps of supplying a total fuel flow to the fuel injector such that at least a portion of the total fuel flow circulates through the high power injector nozzle during all operational modes of the gas turbine engine, including those modes in which the high power injector is not supplying fuel to the combustion chamber, and evacuating unused fuel from the high power injector. The apparatus includes a fuel supply conduit connected to the high power injector to supply at least a portion of the total fuel flow supplied to the fuel injector to the high power injector during all operational modes of the gas turbine engine; a fuel control valve to control the amount of fuel flowing through the fuel injector orifices; and a fuel evacuation conduit connected to the high power injector so as to evacuate unused fuel from the high power injector.
REFERENCES:
patent: 3669354 (1972-06-01), Helyer
patent: 4305255 (1981-12-01), Davies et al.
Alary Jean-Paul D.
Desaulty Michel A. A.
Sandelis Denis J. M.
Schroer Pierre M. V. E.
Casaregola Louis J.
Societe Nationale d'Etude et de Construction de Moteurs d'Aviati
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