Air-fuel ratio regulating apparatus for an internal combustion e

Details Air-fuel ratio regulating apparatus for an internal combustion e Air-fuel ratio regulating apparatus for an internal combustion e

1975-10-30

1977-04-26

Husar, C. J.

Internal-combustion engines

Noncompression

60276, F02B 300

Patent

active

040194744

ABSTRACT:
An apparatus which comprises a detector for detecting the density of one component (oxygen, for example) of exhaust gases from an internal combustion engine for regulating the ratio of air to fuel based on the detected value of the component in such a manner that the air-fuel ratio can be made approximate to the theoretical air-fuel ratio. The apparatus further comprises a first comparator having a hysteresis range and a second comparator having no hysteresis range for detecting the output of the detector for detecting the density of one component of exhaust gases, in order that variations in the characteristics of the detector or changes in its characteristics with time can be compensated for.

REFERENCES:
patent: 3815561 (1974-06-01), Seitz
patent: 3851469 (1974-12-01), Eichler et al.
patent: 3903853 (1975-09-01), Kizler et al.
patent: 3919983 (1975-11-01), Wahl et al.
patent: 3938075 (1976-02-01), Reddy
patent: 3973529 (1976-10-01), Wessel et al.

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