Electronic fuel injection system for internal combustion engines

Details Electronic fuel injection system for internal combustion engines Electronic fuel injection system for internal combustion engines

1974-01-21

1976-04-13

Burns, Wendell E.

Internal-combustion engines

Noncompression

123 32AE, 123140FG, F02B 300

Patent

active

039497135

ABSTRACT:
An electronic fuel injection system for an internal combustion engine wherein the amount of fuel injected is metered according to variations in the injection pressure. Mechanical injectors having a preset opening pressure are fed from a distribution chamber which, in turn, is fed by a fuel circuit pressurized by by an electronically controlled fuel supply flow. The fuel supply flow is the difference between the flow through an inlet injector receiving fuel under pressure and that through an outlet injector regulating the return flow of fuel to the reservoir, these injectors being of the continuous flow electromagnetic type. The fuel supply is frequency controlled by a computer and regulated by a servo loop to assure a constant richness. The preferred embodiment is particularly adaptable to a low priced electronic fuel injection system using mechanical devices whose precision is relatively unimportant.

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patent: 3557765 (1971-01-01), Nystrom
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patent: 3682145 (1972-08-01), Ohtani
patent: 3695235 (1972-10-01), Anderson
patent: 3718127 (1973-02-01), Gates et al.
patent: 3796205 (1974-03-01), Links et al.

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