Method of and apparatus for controlling air fuel ratio of intern

Details Method of and apparatus for controlling air fuel ratio of intern Method of and apparatus for controlling air fuel ratio of intern

1989-06-28

1992-06-09

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Methods

60276, F01N 320

Patent

active

051196298

ABSTRACT:
A method of and an apparatus for controlling the air fuel ratio of an internal combustion engine by which the air fuel ratio can be controlled so that the exhaust gas purifying efficiency of a catalytic converter for purifying exhaust gas of the engine may be maximum. In the apparatus, exhaust gas of the engine is first passed through a catalytic converter and then is introduced into an oxygen concentration sensor of the .lambda. type. When the air fuel ratio is compulsorily varied, the compulsorily varied condition of the air fuel ratio such as an average of variations of the air fuel ratio (average air fuel ratio) is corrected in accordance with an output of the oxygen concentration sensor thereby to control the air fuel ratio so that the purifying efficiency of the exhaust gas purifying catalytic converter may be maximum.

REFERENCES:
patent: 4253302 (1981-03-01), Asano
patent: 4681077 (1987-07-01), Kobayashi

Affiliated with

Also associated with

Rating

Method of and apparatus for controlling air fuel ratio of intern does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of and apparatus for controlling air fuel ratio of intern, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of and apparatus for controlling air fuel ratio of intern will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1796244