Power plants – Combustion products used as motive fluid – Combined with regulation of power output feature
Patent
1980-04-14
1982-07-06
Garrett, Robert E.
Power plants
Combustion products used as motive fluid
Combined with regulation of power output feature
60742, 60746, F02C 904
Patent
active
043376169
ABSTRACT:
A fuel distribution system for regulating split of fuel flow between a pilot nozzle system and a main nozzle system for a combustor includes a flow network for directing fuel from a main fuel metering valve into an unrestricted line to a small pilot nozzle orifice producing a fine fuel spray pattern at low fuel flow rates and further including a fuel splitter valve interposed between the outlet from the fuel metering valve and a fuel conduit connected to a main fuel nozzle of increased orifice size to atomize higher rates of fuel flow thereto and wherein the fuel splitter valve includes an electrically energizable component that receives a control signal of desired pilot fuel/air ratio generated by a controller in part utilizing a signal of total actual fuel flow and total actual air flow to produce the control signal to control operation of the splitter valve so as to regulate the amount of fuel flow to the main nozzle system in accordance with the control signal thereby to produce a residual flow of fuel to the pilot valve to maintain a prescheduled fuel/air ratio for the pilot nozzle system to improve combustor efficiency.
REFERENCES:
patent: 2781638 (1957-02-01), Fletcher et al.
patent: 2881827 (1959-04-01), Roche et al.
patent: 3899879 (1975-08-01), Downing
patent: 4015426 (1977-04-01), Hobo et al.
patent: 4027473 (1977-06-01), Baker
patent: 4157012 (1979-06-01), Dubell
patent: 4305255 (1981-12-01), Davies et al.
Evans J. C.
Garrett Robert E.
General Motors Corporation
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