F - Mech Eng,Light,Heat,Weapons – 02 – M
Patent
F - Mech Eng,Light,Heat,Weapons
02
M
123/66
F02M 17/38 (2006.01)
Patent
CA 1080062
FUEL FLOW CONTROL SYSTEM ABSTRACT OF THE DISCLOSURE A fuel flow control system which, in response to the true mass of air entering the throttle body of an engine, provides a regulated flow of fuel to the throttle body, thereby delivering the optimum mass fuel-air ratio to the engine and maintaining idealized engine performance. The air flow rate drawn through the throttle body by the engine is monitored along with air temperature and pres- sure, and an electronic control circuit computes the true mass of air and the ideal fuel flow rate which will produce the optimum mass fuel-air ratio. The circuit generates a command signal to a novel fuel flow regulating assembly which adjusts the fuel flow in response to the command signal. The regulating assembly includes a control valve positionable in response to the command signal and a pressure differential mechanism movable responsive to the control valve position. A fuel flow metering valve in turn is positioned by the pressure differential mechanism. A fuel flowmeter is included to measure the actual fuel flow rate delivered to the throttle body and a feedback signal generated from the flowmeter to the control circuit further aids in accurately positioning the metering valve and thereby insure correct fuel delivery to the engine.
296493
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