Electronic injection carburetor

Details Electronic injection carburetor Electronic injection carburetor

F - Mech Eng,Light,Heat,Weapons

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F02M 17/02 (2006.01) F02M 69/04 (2006.01) F02M 69/14 (2006.01) F02M 69/18 (2006.01) F02M 69/20 (2006.01)

Patent

CA 1095350

ABSTRACT OF THE DISCLOSURE An electric injection carburetor is disclosed. Unmetered fuel under pressure is quantized for primary metering by an electronic fuel injector and input to metered fuel chamber. The quantization occurs by controlling the duration of the opening time of the injector by an electronic control unit responsive to speed and manifold absolute pressure informa- tion. Secondary metering is provided as a function of the mass air flow through the throat of the carburetor by an actuator assembly controlling fuel input to the carburetor from the metered chamber. The actuator provides the secondary metering by changing the bias pressure on a flexible diaphragm producing a closure force on a needle valve that varies the flow of fuel from the metered chamber to an atomizing discharge nozzle in the throat of the carburetor.

305735

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