Patent · US Active

Method for operating an exhaust after-treatment system comprising an SCR-catalyst

US10865679B2 · kind B2 · utility

0Cited by

3References

13Claims

0Family size

Assignee

MTU FRIEDRICHSHAFEN GMBH · DE

Inventors

Klaus Rusch · Achberg, DE
Jörg Remele · Hagnau, DE
Jens Niemeyer · Friedrichshafen, DE

Key dates

Filing date	Jun 28, 2016
Grant date	Dec 15, 2020
Priority date	—
Expiry date	Jun 28, 2036

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

A method for operating an exhaust after-treatment system including an SCR-catalyst, a metering device for dosing a reducing agent being controlled on the basis of a determining variable that influences a nitrogen-oxide concentration downstream of the SCR-catalyst. A breakthrough identification is carried out for the SCR-catalyst, wherein if a breakthrough is identified, the determining variable is altered to a higher nitrogen-oxide concentration downstream of the SCR-catalyst and the metering device is controlled in order to dose the reducing agent on the basis of the altered determining variable.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.