Method and apparatus for controlling air-fuel ratio in internal

Details Method and apparatus for controlling air-fuel ratio in internal Method and apparatus for controlling air-fuel ratio in internal

1987-12-17

1988-08-30

Cox, Ronald B.

Internal-combustion engines

Charge forming device

Having fluidic logic control means

123489, F02B 300

Patent

active

047668687

ABSTRACT:
In an internal combustion engine having a carburetor fuel system wherein an amount of air bleeding is mixed with the fuel by a feedback control for adjusting an air-fuel ratio, the amount of air bleeding is regulated within a range defined by a minimum guard value and a maximum guard value, the maximum guard value is adjusted to a smaller value than the maximum guard value, and the feedback control is not interrupted when the engine is cold, the engine is in an acceleration state, and the air fuel ratio is lean.

REFERENCES:
patent: 4345560 (1982-08-01), Nakamuka
patent: 4364357 (1982-12-01), Matsuoka
patent: 4450812 (1984-05-01), Otsuka
patent: 4528962 (1985-07-01), Auth

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