F - Mech Eng,Light,Heat,Weapons – 02 – D
Patent
F - Mech Eng,Light,Heat,Weapons
02
D
F02D 41/34 (2006.01) F02D 41/30 (2006.01) F02M 69/14 (2006.01) F02D 41/38 (2006.01)
Patent
CA 2108667
A method of operating a fuel system having a fuel pump (15) to supply fuel to a fuel metering apparatus (23) operable to provide mitered quantities of fuel for injection to an engine, and an electronic controller (22) responsive to a plurality of input signals to determine the engine fuel demand and to control the activation of the fuel metering apparatus (23) to deliver a quantity of fuel to meet said fuel demand. The method comprising maintaining a fuel supply to said fuel metering apparatus (23) within predetermined fuel pressure or fuel level parameters, and cyclically operating said full pump (15) to maintain said fuel supply within said parameters. Further providing a signal from a sensor (18) to the electronic controller (22) indicative of the pressure of the fuel supply at the fuel metering apparatus (23) as one of said input signals to be processed by the electronic controller (22) in the control of the furl metering apparatus (23). The pump (15) preferably provides fuel to a closed chamber that acts in the man- ner of an accumulator (16), and the pressure sensor (18) provides an input signal to the electronic controller (22) indicative of the pressure of the fuel available to the fuel metering apparatus (23) from the accumulator (16). Alternatively, the chamber may main- tain the full between predetermined levels at a substantially steady or variable pressure.
Bereskin & Parr
Orbital Engine Company (australia) Pty. Limited
LandOfFree
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