Method for controlling the purification of exhaust gases from an

Details Method for controlling the purification of exhaust gases from an Method for controlling the purification of exhaust gases from an

1996-11-06

1998-07-14

Argenbright, Tony M.

Power plants

Internal combustion engine with treatment or handling of...

Methods

60276, 60285, F01N 320

Patent

active

057786631

ABSTRACT:
In the embodiments disclosed in the specification, an exhaust gas purifier includes an exhaust line which leads from an internal combustion engine and includes a catalytic converter, a first oxygen sensor upstream of the catalytic converter and a second oxygen sensor downstream of the catalytic converter which provides an output signal used as a reference to correct errors in fuel injection time resulting from drift of the first oxygen sensor when fuel with a low content of aromatics is used in place of conventional fuel.

REFERENCES:
patent: 5158058 (1992-10-01), Yoshida et al.
patent: 5255512 (1993-10-01), Hamburg et al.
patent: 5433071 (1995-07-01), Willey et al.
"The Effect of Gasoline Composition on Exhaust Emissions from Modern BMW Vehicles" by Lange et al.; pp. 81-100. No date.
"NO.sub.x Aromatics Effects in Catalyst-Equipped Gasoline Vehicles" by Le Jeune et al.; pp. 119-134. No date.

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