Air-fuel ratio adjusting device in an internal combustion engine

Details Air-fuel ratio adjusting device in an internal combustion engine Air-fuel ratio adjusting device in an internal combustion engine

1974-05-15

1976-06-01

Myhre, Charles J.

Internal-combustion engines

Noncompression

60276, 123127, F02B 300, F02D 106

Patent

active

039601188

ABSTRACT:
An air-fuel ratio adjusting device in an internal combustion engine having a carburetor, comprising an oxygen sensor whereby oxygen concentration in the exhaust gas is detected and control means whereby the detected oxygen concentration is compared with the air-fuel ratio in the mixture and an output signal corresponding to the difference therebetween is produced, the output signal being applied to an electromagnetic fuel injection system provided in the carburetor. A regulator is provided between the main fuel supply system and the electromagnetic fuel injection system in the carburetor. Also, a cold start nozzle which is controlled on engine starting is provided in the intake system.

REFERENCES:
patent: 2355090 (1944-08-01), Love
patent: 3548792 (1970-12-01), Palmer
patent: 3631843 (1972-01-01), Yeiser
patent: 3704702 (1972-05-01), Aono
patent: 3738341 (1973-06-01), Loos
patent: 3768259 (1973-10-01), Carnahan

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