Method and apparatus for detecting saturation gas amount absorbe

Details Method and apparatus for detecting saturation gas amount absorbe Method and apparatus for detecting saturation gas amount absorbe

1994-10-05

1997-04-22

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Methods

60276, 60277, 60285, F01N 320

Patent

active

056220472

ABSTRACT:
In an apparatus for detecting a saturation gas amount absorbed by a catalytic converter disposed in an exhaust system of an engine, an air-to-fuel ratio detecting device is disposed in a region of the engine exhaust system downstream of the catalytic converter for monitoring exhaust gas, which has passed through the catalytic converter, to detect an air-to-fuel ratio of an air-fuel mixture causing the exhaust gas. An air-to-fuel ratio changing device serves to change an air-to-fuel ratio of an air-fuel mixture fed to the engine by a correction quantity in a given direction, and serves to maintain changing the air-to-fuel ratio during a correction time. A change increasing device serves to increase the correction quantity and/or the correction time by the air-to-fuel ratio changing device to execute an air-to-fuel ratio changing process again in cases where the air-to-fuel ratio detected by the air-to-fuel ratio detecting device does not vary even when the air-to-fuel ratio changing device executes changing the air-to-fuel ratio. A saturation gas amount calculating device serves to calculate a saturation gas amount absorbed by the catalytic converter on the basis of the correction quantity and the correction time in cases where the air-to-fuel ratio detected by the air-to-fuel ratio detecting device varies when the air-to-fuel ratio changing device executes changing the air-to-fuel ratio.

REFERENCES:
patent: 4739614 (1988-04-01), Katsuno et al.
patent: 5077970 (1992-01-01), Hamburg
patent: 5090199 (1992-02-01), Ikuta et al.
patent: 5103640 (1992-04-01), Nada et al.
patent: 5154055 (1992-10-01), Nakane et al.
patent: 5220788 (1993-06-01), Kurita et al.
patent: 5363091 (1994-11-01), Kotwicki

Affiliated with

Also associated with

Rating

Method and apparatus for detecting saturation gas amount absorbe 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 and apparatus for detecting saturation gas amount absorbe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for detecting saturation gas amount absorbe will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-335816