Automobile air/fuel control system

Details Automobile air/fuel control system Automobile air/fuel control system

1983-11-22

1984-12-18

Lall, Parshotam S.

Internal-combustion engines

Charge forming device

Auxiliary control of carburetor fuel metering

123436, 123440, 123489, 123492, F02M 700

Patent

active

044885296

ABSTRACT:
An air-fuel ratio control system for an internal combustion engine for controlling the air-fuel mixing ratio of a combustible mixture to be supplied to the engine on a feedback control scheme in dependence on the concentration of a constituent of exhaust gases which is a function of the air-fuel mixing ratio of the combustible mixture having been combusted. The feedback control scheme of the air-fuel ratio control system for adjusting the ratio to the stoichiometric value is temporarily disconnected to permit the mixture to be enriched so that the engine can produce a relatively high power output during the high load engine operating condition.

REFERENCES:
patent: 4056931 (1977-11-01), Hata
patent: 4221191 (1980-09-01), Asano et al.
patent: 4240389 (1980-12-01), Shimazaki
patent: 4329960 (1982-05-01), Woodhouse et al.
patent: 4419975 (1983-12-01), Kubota et al.

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