Air-fuel mixture control for automobile engine having fuel injec

Details Air-fuel mixture control for automobile engine having fuel injec Air-fuel mixture control for automobile engine having fuel injec

1981-08-20

1983-05-31

Burns, Wendell E.

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

F02M 2506

Patent

active

043856160

ABSTRACT:
An air-fuel ratio control system for an automobile engine of a type having a fuel injection system wherein at least two of parameters including the engine speed, the opening of a throttle valve and the negative pressure developed inside a fuel intake passage are utilized to detect the rate of flow of incoming air to be mixed with an injected mist of fuel to form a combustible mixture. The amount of fuel to be injected into the intake passage depends on the detected rate of flow of the incoming air. A composition sensor for detecting the concentration of an exhaust gas component is also provided for controlling an EGR control valve for controlling the recirculation of a portion of exhaust gases from an exhaust passage into the intake passage.

REFERENCES:
patent: 4071003 (1978-01-01), Aono
patent: 4168683 (1979-09-01), Hata et al.
patent: 4185604 (1980-01-01), Nagaishi et al.
patent: 4190029 (1980-02-01), Taplin
patent: 4289108 (1981-09-01), Shioyama
patent: 4304210 (1981-12-01), Hayakawa

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