Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1977-11-07
1981-02-17
Cox, Ronald B.
Internal-combustion engines
Charge forming device
Fuel injection system
123452, 123438, F02M 300, F02B 3300
Patent
active
042508428
ABSTRACT:
An electronic injection carburetor is disclosed. Fuel under pressure is quantized for primary metering by an electronic fuel injector and input to a 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 information. 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.
REFERENCES:
patent: 3861366 (1975-01-01), Masaki
patent: 4034727 (1977-07-01), Aono
patent: 4084562 (1978-04-01), Eckert
Cox Ronald B.
Marvin William A.
The Bendix Corporation
Wells Russel C.
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