Patent · US Active

Device for post-treatment of exhaust gases of a lean burning internal combustion engine

US9803528B2 · kind B2 · utility

1Cited by

7References

8Claims

0Family size

Assignee

AUDI AG · DE

Inventors

Axel Peters · Freising, DE
Marko Buder · Ingolstadt, DE

Key dates

Filing date	Sep 3, 2008
Grant date	Oct 31, 2017
Priority date	—
Expiry date	Oct 25, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

The invention relates to a device for post-treatment of exhaust gases of a lean burning internal combustion engine, in particular a diesel internal combustion engine, with an exhaust gas channel in which downstream of a reducing agent metering device there is a catalytic converter for selective catalytic reduction as an SCR catalytic converter. According to the invention, the exhaust gas channel section which, viewed in the exhaust gas flow direction, extends between the reducing agent metering device and the SCR catalytic converter, is made as a preferably air gap-insulated exhaust gas channel section.

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