Patent · US Active

Method for checking the efficacy of an exhaust gas after-treatment device

US10041393B2 · kind B2 · utility

0Cited by

3References

16Claims

0Family size

Assignee

AVL LIST GMBH · AT

Inventors

Martin Schüssler · Graz, AT
Markus Thaler · Graz, AT

Key dates

Filing date	Jun 16, 2014
Grant date	Aug 7, 2018
Priority date	—
Expiry date	Jun 16, 2034

Classification

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

Abstract

The invention relates to a method for checking the efficacy of an exhaust gas after-treatment device (9), especially of a catalyst, for an internal combustion engine, exhaust gas generated by a donor internal combustion engine (2) flowing through the exhaust gas after-treatment device (9) to be checked. In order to allow the efficacy of an exhaust gas after-treatment device (9) to be checked with a high degree of flexibility and in a simple manner, a partial quantity is withdrawn from the exhaust gas flow of the donor internal combustion engine (2) and is fed to a defined partial inlet cross-section (22) of the exhaust gas after-treatment device (9) to be checked.

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