Internal-combustion engines – Charge forming device – Auxiliary control of carburetor fuel metering
Patent
1982-02-24
1985-01-29
Lall, Parshotam S.
Internal-combustion engines
Charge forming device
Auxiliary control of carburetor fuel metering
123480, F02M 700
Patent
active
044959214
ABSTRACT:
An air fuel ratio control system includes a correction system for correcting air/fuel ratio depending on measured atmospheric air pressure. The correction system has sensors for detecting engine operating conditions. A reference intake manifold pressure corresponding to the detected engine operating condition at sea level is obtained from the engine operating condition. The reference atmospheric air pressure is compared with the measure intake manifold absolute pressure to determine a difference value. Based on the difference, a correction value for controlling the air/fuel ratio is determined.
REFERENCES:
patent: 4167924 (1979-09-01), Carlson et al.
patent: 4364227 (1982-12-01), Yoshida et al.
patent: 4365603 (1982-12-01), Shikata et al.
patent: 4373187 (1983-02-01), Ishii et al.
Lall Parshotam S.
Nissan Motor Company Limited
Wolfe W. R.
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