Air-fuel ratio controlling device for internal combustion engine

Details Air-fuel ratio controlling device for internal combustion engine Air-fuel ratio controlling device for internal combustion engine

1982-11-04

1984-04-24

Cuchlinski, Jr., William A.

Internal-combustion engines

Engine speed regulator

Charge proportion varying

123494, F02M 710

Patent

active

044441690

ABSTRACT:
An air-fuel ratio controlling device for internal combustion engines, having a detector for a flow rate of the air supplied into a cylinder, a means for detecting a ratio of a flow rate of the air supplied into the cylinder to that of a fuel supplied thereinto, a control means for setting an air-fuel ratio to an optimum level on the basis of output signals from the air-fuel ratio detecting means and air flow rate detector, and a means for controlling the supplying of the fuel into the cylinder in accordance with an output signal from the air-fuel ratio control means. The air-fuel ratio detecting means has members for detecting the light generated by a flame in the cylinder and having at least two special wavelengths. The combustion condition corresponding to an air-fuel ratio in the cylinder is detected by the light-detecting members, and a signal representative of an actual air-fuel ratio is generated on the basis of outputs therefrom.

REFERENCES:
patent: 4381748 (1983-05-01), Eckert et al.
patent: 4391248 (1983-07-01), Latsch
patent: 4393687 (1983-07-01), Muller et al.
patent: 4397283 (1983-08-01), Komaroff et al.

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