Exhaust gas purifying method of an internal combustion engine

Details Exhaust gas purifying method of an internal combustion engine Exhaust gas purifying method of an internal combustion engine

1980-08-13

1983-05-17

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Methods

60276, 60277, 60285, 60290, F01N 318

Patent

active

043834086

ABSTRACT:
At least one electrical signal which indicates an operating condition of an internal combustion engine is generated, and then a first air-fuel ratio feedback control system which controls a carburetor air-fuel ratio and a second air-fuel ratio feedback control system which controls the amount of secondary air supplied into the exhaust system is selectively energized so as to function in accordance with the generated electrical signal.

REFERENCES:
patent: 3931710 (1976-01-01), Hartel
patent: 3949551 (1976-04-01), Eichler
patent: 3962867 (1976-06-01), Ikeura
patent: 3986352 (1976-10-01), Casey
patent: 4000615 (1977-01-01), Bockelmann
patent: 4058978 (1977-11-01), Bockelmann
patent: 4099377 (1978-11-01), Yoshimura
patent: 4148188 (1979-04-01), Tokura
patent: 4149376 (1979-04-01), Masaki
patent: 4233811 (1980-11-01), Masaki
patent: 4276745 (1981-07-01), Takada

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