Air/fuel ratio sensor apparatus for use with internal combustion

Details Air/fuel ratio sensor apparatus for use with internal combustion Air/fuel ratio sensor apparatus for use with internal combustion

1986-02-21

1988-06-28

Cox, Ronald B.

Internal-combustion engines

Charge forming device

Having fluidic logic control means

123479, F02B 300

Patent

active

047532033

ABSTRACT:
An air/fuel ratio sensor apparatus which is capable of detecting deterioration of the sensing elements and correcting the output of the apparatus accordingly. The apparatus includes two sensing elements and a closed compartment of which the two sensing elements define at least portions. One of the sensing elements is used as an oxygen concentration measuring cell, and the other as an oxygen pump cell. When the internal combustion engine with which the sensor is associated is running without fuel supply, a reference voltage used for controlling the oxygen pumping current is set to a smaller value than that employed when the engine is running with a fuel supply. Deterioration of the sensing elements is then detected by comparing the output air/fuel ratio signal produced at that time with a preset fixed value.

REFERENCES:
patent: 4363306 (1982-12-01), Sone
patent: 4601809 (1986-07-01), Kitahara

Affiliated with

Also associated with

Rating

Air/fuel ratio sensor apparatus for use with internal combustion does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Air/fuel ratio sensor apparatus for use with internal combustion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air/fuel ratio sensor apparatus for use with internal combustion will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1909889