Patent · US Active

Method and device for reactivating exhaust-gas purification systems of diesel engines with low-pressure EGR

US9587540B2 · kind B2 · utility

2Cited by

11References

23Claims

0Family size

Assignee

UMICORE AG & CO. KG · DE

Inventors

Stephan Eckhoff · Alzenau, DE
Stefan Franoschek · Nettetal, DE

Key dates

Filing date	Jun 22, 2012
Grant date	Mar 7, 2017
Priority date	—
Expiry date	Jun 22, 2032

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 reactivating a system composed of an oxidation catalytic converter (5) followed by a possibly catalytically coated particle filter (6), and to a correspondingly adapted exhaust-gas purification system for lean-burn engines (1) with low pressure EGR (14). The present invention relates in particular to the reactivation of such a system during overrun operation of the engine.

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