Air-to-fuel ratio feedback control system for internal combustio

Details Air-to-fuel ratio feedback control system for internal combustio Air-to-fuel ratio feedback control system for internal combustio

1976-11-15

1978-06-27

Myhre, Charles J.

Internal-combustion engines

Noncompression

60276, F02B 300, F02D 3300

Patent

active

040968340

ABSTRACT:
An internal combustion engine having an air-fuel mixture supply controller is provided with an air-to-fuel ratio detector for detecting the oxygen content in the exhaust gas of the engine and a feedback controller for correcting mixture supply operation of the mixture supply controller in response to the oxygen content. A halt circuit and a hold circuit, being responsive to first and second operating conditions of the engine respectively, are connected to the feedback controller to halt and hold the feedback control, thus causing the mixture supply controller to supply the richer or leaner mixture as desired.

REFERENCES:
patent: 3703162 (1972-11-01), Aono
patent: 3827237 (1974-08-01), Linder et al.
patent: 3939654 (1976-02-01), Creps
patent: 3948228 (1976-04-01), Luchaco
patent: 3949551 (1976-04-01), Eichler et al.
patent: 4031866 (1977-06-01), Asano

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