Method and apparatus for metering the introduction of a reducing

Details Method and apparatus for metering the introduction of a reducing Method and apparatus for metering the introduction of a reducing

1998-03-30

2000-07-25

Ryznic, John E.

Power plants

Internal combustion engine with treatment or handling of...

Methods

60303, F01N 300

Patent

active

060923679

ABSTRACT:
The invention relates to a method and an associated apparatus for metering a quantity of a reducing agent introduced into the exhaust-gas or exhaust-air stream of a combustion installation, in particular an internal combustion engine, for the reduction of pollutants. The quantity of the reducing agent to be introduced is determined by way of a functional relationship. The functional relationship is determined from operation-relevant parameters of the combustion installation, the exhaust gas and, if appropriate, of a catalytic converter. The functional relationship is checked during the operation of the combustion installation and adapted to the current state and the current operating conditions of the combustion installation, the exhaust gas and, if appropriate, the catalytic converter.

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patent: 5628186 (1997-05-01), Schmelz
Patent Abstracts of Japan No. 43-46819.
International Publication No. 95/04878 (Keeler et al.), dated Feb. 16, 1995.
Patent Abstracts of Japan No. 01094924 (Sadao et al.), dated Apr. 13, 1989.

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