Method and apparatus for controlling air-fuel ration in internal

Internal-combustion engines – Charge forming device – Fuel injection system

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123440, F02M 5100

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active

046517006

ABSTRACT:
In an internal combustion engine wherein feedback control of the air-fuel ratio is carried out in accordance with the concentration of a specific composition in the exhaust gas, so that the air-fuel ratio is close to an aimed air-fuel ratio, the atmospheric pressure is detected, and the aimed air-fuel ratio is varied in accordance with the detected atmospheric pressure.

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patent: 4526153 (1985-07-01), Hasegawa et al.
patent: 4528961 (1985-07-01), Katoh et al.

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