Fuel-supply control system for gas-turbine engine

Details Fuel-supply control system for gas-turbine engine Fuel-supply control system for gas-turbine engine

1981-08-04

1983-09-20

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

123434, F02B 300

Patent

active

044049455

ABSTRACT:
A fuel-supply control system for a gas-turbine engine includes a fuel injector opening into an engine combustion chamber, and a reservoir connected to the fuel injector. At least two different lines are each connected at one end to the reservoir. These lines are permitted to pass fuel therethrough to supply the fuel to the combustion chamber via the reservoir and the fuel injector. Metering valves whose number is equal to the number of the lines are arranged each in the lines in such a manner that the lengths of the lines from the corresponding metering valve to the reservoir are different from each other. The metering valves are changed from one of open and closed states to the other when energized. A sensor is provided for detecting a certain engine operating condition. A controller is connected to the sensor for producing a pulse train whose duty cycle depends on the engine operating condition. The pulse train is fed to the metering valves to open them periodically.

REFERENCES:
patent: 3669081 (1972-06-01), Monpetit
patent: 3688750 (1972-09-01), O'Neill
patent: 3786789 (1974-01-01), Barr et al.
patent: 4069800 (1978-01-01), Kanda et al.
patent: 4256075 (1981-03-01), Fukui et al.
patent: 4269156 (1981-05-01), Drellishak
patent: 4336782 (1982-06-01), Endo et al.

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