Method and apparatus for controlling air-fuel ratio in internal

Details Method and apparatus for controlling air-fuel ratio in internal Method and apparatus for controlling air-fuel ratio in internal

1985-04-25

1987-02-24

Dolinar, Andrew M.

Internal-combustion engines

Charge forming device

Fuel injection system

123491, F02D 4114

Patent

active

046449213

ABSTRACT:
In an internal combustion engine, feedback control of the air-fuel ratio is carried out in accordance with the concentration of a specific composition in the exhaust gas, so that the air-fuel ratio is close to a target air-fuel ratio on the lean side with respect to the stoichimetric air-fuel ratio, the target air-fuel ratio is variable in accordance with the engine temperature.

REFERENCES:
patent: 4109615 (1978-08-01), Asano
patent: 4169440 (1979-10-01), Taplin et al.
patent: 4175521 (1979-11-01), Hattori et al.
patent: 4348996 (1982-09-01), Morozumi
patent: 4561403 (1985-12-01), Oyama et al.
Patents Abstracts of Japan, vol. 6, No. 246 (M-176) [1124], 4th Dec. 1982, JP-A, abstract of No. 57 143143 (Toyota Jidosha Kogyo K.K.) 04-09-1982.

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