초록 ▼

A fuel injection system for an internal combustion engine utilizing output signals from existing “dual magneto”ignition system to produce output pulses in synchronism with the revolution of the output shaft. A pressure transducer measures the pressure in the intake manifold while a control system ge

A fuel injection system for an internal combustion engine utilizing output signals from existing “dual magneto”ignition system to produce output pulses in synchronism with the revolution of the output shaft. A pressure transducer measures the pressure in the intake manifold while a control system generates a VALVE OPEN signal in synchronism with the magneto signal and having a duration proportional to the pressure in the intake manifold to open the fuel injectors and provide fuel to the engine. A special engine starting fuel schedule, hot enrichment schedule, cold enrichment schedule and auto-lean fuel schedule are also generated by the control system.

대표청구항 ▼

A fuel injection system for an internal combustion engine of the type having an intake manifold, a rotary output shaft and at least one fuel injector, said at least one injector having a valve which, when open, enables the injection of fuel into a combustion chamber for the engine, said fuel injecti

A fuel injection system for an internal combustion engine of the type having an intake manifold, a rotary output shaft and at least one fuel injector, said at least one injector having a valve which, when open, enables the injection of fuel into a combustion chamber for the engine, said fuel injection system comprising: means located proximate to and associated with said shaft for producing at least one pulse per revolution of said shaft at a predetermined rotational position of said shaft, means for measuring the pressure in the manifold and for providing a pressure output signal, means for opening said valve in synchronism with said pulse, means responsive to said pressure signal for generating a VALVE OPEN signal having a duration during a cruising condition solely proportional to said pressure signal, said VALVE OPEN signal being operable to open said at least one valve during the duration of said VALVE OPEN signal, wherein the fuel injection is initiated at the same rotational position of the rotary output shaft and wherein the termination of the fuel injection per rotation of the shaft is varied to vary the amount of fuel injected into the engine.