Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1978-12-18
1980-09-09
Lall, P. S.
Internal-combustion engines
Charge forming device
Fuel injection system
123489, 123491, 123415, F02B 300
Patent
active
042211948
ABSTRACT:
An electronic fuel injection system includes a mass flow transducer, an integrator which periodically accumulates a signal corresponding to the total mass of air aspirated into the engine during a preceding fraction of an engine cycle, a signal storage capacitor which is charged periodically to the integrator output voltage under the control of an analog gate, a controlled current source normally giving a constant current, but overridingly controllable by the integrator output at extremes of the range of the integrator output and connected to discharge the capacitor and a comparator sensing the voltage on the capacitor and controlling the length of time for which the injector is open.
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patent: 3613644 (1971-10-01), Porsche
patent: 3651343 (1972-03-01), Monpetit
patent: 3727081 (1973-04-01), Davis et al.
patent: 3750631 (1973-08-01), Scholl et al.
patent: 3771502 (1973-11-01), Reddy
patent: 3916170 (1975-10-01), Norimatsu et al.
patent: 3923016 (1975-12-01), Hoshi
patent: 3991726 (1976-11-01), Kawai et al.
patent: 3991727 (1976-11-01), Kawai et al.
patent: 4121545 (1978-10-01), Mizote
patent: 4133326 (1979-01-01), Cops et al.
Lall P. S.
Lucas Industries Limited
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