Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1980-04-03
1983-05-31
Myhre, Charles J.
Internal-combustion engines
Charge forming device
Fuel injection system
123440, F02D 500
Patent
active
043856128
ABSTRACT:
An air-fuel ratio control system is disclosed for controlling the air-fuel ratio of a mixture supplied to an engine on one side of stoichiometric. The system comprises a sensor for detecting the arrival of the inlet air-fuel ratio at its stoichiometric level and fuel supply means for supplying a controlled amount of fuel to the intake system of the engine. Control means is associated with the sensor for providing first and second control signals to the fuel supply means so as to control the amount of fuel supplied therethrough. The first control signal occurs to cause the inlet air-fuel ratio to vary toward the stoichiometric level and the second signal occurs for a predetermined period of time after the inlet air-fuel ratio arrives at the stoichiometric level to cause the inlet air-fuel ratio to vary away from the stoichiometric level.
REFERENCES:
patent: 4073269 (1978-02-01), Herth et al.
patent: 4111162 (1978-09-01), Norimatsu et al.
patent: 4112880 (1978-09-01), Asano et al.
patent: 4140086 (1979-02-01), Schnurle et al.
patent: 4210106 (1980-07-01), Wessel et al.
patent: 4228775 (1980-10-01), Schweikert
Kanegae Hidetoshi
Masaki Kenji
Dolinar Andrew M.
Myhre Charles J.
Nissan Motor Company Limited
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