Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means
Patent
1977-09-08
1979-04-17
Myhre, Charles J.
Internal-combustion engines
Intake manifold
Manifold tuning, balancing or pressure regulating means
123119R, 60276, F02M 2506
Patent
active
041495020
ABSTRACT:
A closed loop fuel control system is described for an internal combustion engine having two cylinder banks and an air/fuel mixture supply means for supplying a combustible mixture to each of the cylinder banks with the air/fuel ratio of the mixture supplied to each of the cylinder banks having relative values determined by the characteristics of the engine and the mixture supply means. Two exhaust gas sensors are provided, each being located at the exhaust discharge point of a respective one of the cylinder banks and sensing the oxidizing/reducing conditions of the exhaust gases from the respective cylinder bank. A controller adjusts the air/fuel mixture supply means to obtain a specified air/fuel ratio in response to combinations of exhaust gas oxidizing/reducing conditions as sensed by the exhaust gas sensors.
REFERENCES:
patent: 3939654 (1976-02-01), Creps
patent: 4000614 (1977-01-01), Abthoff et al.
patent: 4026256 (1977-05-01), Fenn
Johnson Michael L.
West Gene A.
Conkey Howard N.
General Motors Corporation
Myhre Charles J.
Nelli Raymond A.
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